git_store.rs

   1pub mod branch_diff;
   2mod conflict_set;
   3pub mod git_traversal;
   4pub mod pending_op;
   5
   6use crate::{
   7    ProjectEnvironment, ProjectItem, ProjectPath,
   8    buffer_store::{BufferStore, BufferStoreEvent},
   9    trusted_worktrees::{
  10        PathTrust, TrustedWorktrees, TrustedWorktreesEvent, TrustedWorktreesStore,
  11    },
  12    worktree_store::{WorktreeStore, WorktreeStoreEvent},
  13};
  14use anyhow::{Context as _, Result, anyhow, bail};
  15use askpass::{AskPassDelegate, EncryptedPassword, IKnowWhatIAmDoingAndIHaveReadTheDocs};
  16use buffer_diff::{BufferDiff, BufferDiffEvent};
  17use client::ProjectId;
  18use collections::HashMap;
  19pub use conflict_set::{ConflictRegion, ConflictSet, ConflictSetSnapshot, ConflictSetUpdate};
  20use fs::Fs;
  21use futures::{
  22    FutureExt, StreamExt,
  23    channel::{
  24        mpsc,
  25        oneshot::{self, Canceled},
  26    },
  27    future::{self, BoxFuture, Shared},
  28    stream::FuturesOrdered,
  29};
  30use git::{
  31    BuildPermalinkParams, GitHostingProviderRegistry, Oid, RunHook,
  32    blame::Blame,
  33    parse_git_remote_url,
  34    repository::{
  35        Branch, CommitDetails, CommitDiff, CommitFile, CommitOptions, DiffType, FetchOptions,
  36        GitRepository, GitRepositoryCheckpoint, GraphCommitData, InitialGraphCommitData, LogOrder,
  37        LogSource, PushOptions, Remote, RemoteCommandOutput, RepoPath, ResetMode,
  38        UpstreamTrackingStatus, Worktree as GitWorktree,
  39    },
  40    stash::{GitStash, StashEntry},
  41    status::{
  42        self, DiffStat, DiffTreeType, FileStatus, GitSummary, StatusCode, TrackedStatus, TreeDiff,
  43        TreeDiffStatus, UnmergedStatus, UnmergedStatusCode,
  44    },
  45};
  46use gpui::{
  47    App, AppContext, AsyncApp, Context, Entity, EventEmitter, SharedString, Subscription, Task,
  48    WeakEntity,
  49};
  50use language::{
  51    Buffer, BufferEvent, Language, LanguageRegistry,
  52    proto::{deserialize_version, serialize_version},
  53};
  54use parking_lot::Mutex;
  55use pending_op::{PendingOp, PendingOpId, PendingOps, PendingOpsSummary};
  56use postage::stream::Stream as _;
  57use rpc::{
  58    AnyProtoClient, TypedEnvelope,
  59    proto::{self, git_reset, split_repository_update},
  60};
  61use serde::Deserialize;
  62use settings::WorktreeId;
  63use smol::future::yield_now;
  64use std::{
  65    cmp::Ordering,
  66    collections::{BTreeSet, HashSet, VecDeque, hash_map::Entry},
  67    future::Future,
  68    mem,
  69    ops::Range,
  70    path::{Path, PathBuf},
  71    str::FromStr,
  72    sync::{
  73        Arc,
  74        atomic::{self, AtomicU64},
  75    },
  76    time::Instant,
  77};
  78use sum_tree::{Edit, SumTree, TreeMap};
  79use task::Shell;
  80use text::{Bias, BufferId};
  81use util::{
  82    ResultExt, debug_panic,
  83    paths::{PathStyle, SanitizedPath},
  84    post_inc,
  85    rel_path::RelPath,
  86};
  87use worktree::{
  88    File, PathChange, PathKey, PathProgress, PathSummary, PathTarget, ProjectEntryId,
  89    UpdatedGitRepositoriesSet, UpdatedGitRepository, Worktree,
  90};
  91use zeroize::Zeroize;
  92
  93pub struct GitStore {
  94    state: GitStoreState,
  95    buffer_store: Entity<BufferStore>,
  96    worktree_store: Entity<WorktreeStore>,
  97    repositories: HashMap<RepositoryId, Entity<Repository>>,
  98    worktree_ids: HashMap<RepositoryId, HashSet<WorktreeId>>,
  99    active_repo_id: Option<RepositoryId>,
 100    #[allow(clippy::type_complexity)]
 101    loading_diffs:
 102        HashMap<(BufferId, DiffKind), Shared<Task<Result<Entity<BufferDiff>, Arc<anyhow::Error>>>>>,
 103    diffs: HashMap<BufferId, Entity<BufferGitState>>,
 104    shared_diffs: HashMap<proto::PeerId, HashMap<BufferId, SharedDiffs>>,
 105    _subscriptions: Vec<Subscription>,
 106}
 107
 108#[derive(Default)]
 109struct SharedDiffs {
 110    unstaged: Option<Entity<BufferDiff>>,
 111    uncommitted: Option<Entity<BufferDiff>>,
 112}
 113
 114struct BufferGitState {
 115    unstaged_diff: Option<WeakEntity<BufferDiff>>,
 116    uncommitted_diff: Option<WeakEntity<BufferDiff>>,
 117    oid_diffs: HashMap<Option<git::Oid>, WeakEntity<BufferDiff>>,
 118    conflict_set: Option<WeakEntity<ConflictSet>>,
 119    recalculate_diff_task: Option<Task<Result<()>>>,
 120    reparse_conflict_markers_task: Option<Task<Result<()>>>,
 121    language: Option<Arc<Language>>,
 122    language_registry: Option<Arc<LanguageRegistry>>,
 123    conflict_updated_futures: Vec<oneshot::Sender<()>>,
 124    recalculating_tx: postage::watch::Sender<bool>,
 125
 126    /// These operation counts are used to ensure that head and index text
 127    /// values read from the git repository are up-to-date with any hunk staging
 128    /// operations that have been performed on the BufferDiff.
 129    ///
 130    /// The operation count is incremented immediately when the user initiates a
 131    /// hunk stage/unstage operation. Then, upon finishing writing the new index
 132    /// text do disk, the `operation count as of write` is updated to reflect
 133    /// the operation count that prompted the write.
 134    hunk_staging_operation_count: usize,
 135    hunk_staging_operation_count_as_of_write: usize,
 136
 137    head_text: Option<Arc<str>>,
 138    index_text: Option<Arc<str>>,
 139    oid_texts: HashMap<git::Oid, Arc<str>>,
 140    head_changed: bool,
 141    index_changed: bool,
 142    language_changed: bool,
 143}
 144
 145#[derive(Clone, Debug)]
 146enum DiffBasesChange {
 147    SetIndex(Option<String>),
 148    SetHead(Option<String>),
 149    SetEach {
 150        index: Option<String>,
 151        head: Option<String>,
 152    },
 153    SetBoth(Option<String>),
 154}
 155
 156#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
 157enum DiffKind {
 158    Unstaged,
 159    Uncommitted,
 160    SinceOid(Option<git::Oid>),
 161}
 162
 163enum GitStoreState {
 164    Local {
 165        next_repository_id: Arc<AtomicU64>,
 166        downstream: Option<LocalDownstreamState>,
 167        project_environment: Entity<ProjectEnvironment>,
 168        fs: Arc<dyn Fs>,
 169    },
 170    Remote {
 171        upstream_client: AnyProtoClient,
 172        upstream_project_id: u64,
 173        downstream: Option<(AnyProtoClient, ProjectId)>,
 174    },
 175}
 176
 177enum DownstreamUpdate {
 178    UpdateRepository(RepositorySnapshot),
 179    RemoveRepository(RepositoryId),
 180}
 181
 182struct LocalDownstreamState {
 183    client: AnyProtoClient,
 184    project_id: ProjectId,
 185    updates_tx: mpsc::UnboundedSender<DownstreamUpdate>,
 186    _task: Task<Result<()>>,
 187}
 188
 189#[derive(Clone, Debug)]
 190pub struct GitStoreCheckpoint {
 191    checkpoints_by_work_dir_abs_path: HashMap<Arc<Path>, GitRepositoryCheckpoint>,
 192}
 193
 194#[derive(Clone, Debug, PartialEq, Eq)]
 195pub struct StatusEntry {
 196    pub repo_path: RepoPath,
 197    pub status: FileStatus,
 198    pub diff_stat: Option<DiffStat>,
 199}
 200
 201impl StatusEntry {
 202    fn to_proto(&self) -> proto::StatusEntry {
 203        let simple_status = match self.status {
 204            FileStatus::Ignored | FileStatus::Untracked => proto::GitStatus::Added as i32,
 205            FileStatus::Unmerged { .. } => proto::GitStatus::Conflict as i32,
 206            FileStatus::Tracked(TrackedStatus {
 207                index_status,
 208                worktree_status,
 209            }) => tracked_status_to_proto(if worktree_status != StatusCode::Unmodified {
 210                worktree_status
 211            } else {
 212                index_status
 213            }),
 214        };
 215
 216        proto::StatusEntry {
 217            repo_path: self.repo_path.to_proto(),
 218            simple_status,
 219            status: Some(status_to_proto(self.status)),
 220            diff_stat_added: self.diff_stat.map(|ds| ds.added),
 221            diff_stat_deleted: self.diff_stat.map(|ds| ds.deleted),
 222        }
 223    }
 224}
 225
 226impl TryFrom<proto::StatusEntry> for StatusEntry {
 227    type Error = anyhow::Error;
 228
 229    fn try_from(value: proto::StatusEntry) -> Result<Self, Self::Error> {
 230        let repo_path = RepoPath::from_proto(&value.repo_path).context("invalid repo path")?;
 231        let status = status_from_proto(value.simple_status, value.status)?;
 232        let diff_stat = match (value.diff_stat_added, value.diff_stat_deleted) {
 233            (Some(added), Some(deleted)) => Some(DiffStat { added, deleted }),
 234            _ => None,
 235        };
 236        Ok(Self {
 237            repo_path,
 238            status,
 239            diff_stat,
 240        })
 241    }
 242}
 243
 244impl sum_tree::Item for StatusEntry {
 245    type Summary = PathSummary<GitSummary>;
 246
 247    fn summary(&self, _: <Self::Summary as sum_tree::Summary>::Context<'_>) -> Self::Summary {
 248        PathSummary {
 249            max_path: self.repo_path.as_ref().clone(),
 250            item_summary: self.status.summary(),
 251        }
 252    }
 253}
 254
 255impl sum_tree::KeyedItem for StatusEntry {
 256    type Key = PathKey;
 257
 258    fn key(&self) -> Self::Key {
 259        PathKey(self.repo_path.as_ref().clone())
 260    }
 261}
 262
 263#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 264pub struct RepositoryId(pub u64);
 265
 266#[derive(Clone, Debug, Default, PartialEq, Eq)]
 267pub struct MergeDetails {
 268    pub merge_heads_by_conflicted_path: TreeMap<RepoPath, Vec<Option<SharedString>>>,
 269    pub message: Option<SharedString>,
 270}
 271
 272#[derive(Clone)]
 273pub enum CommitDataState {
 274    Loading,
 275    Loaded(Arc<GraphCommitData>),
 276}
 277
 278#[derive(Clone, Debug, PartialEq, Eq)]
 279pub struct RepositorySnapshot {
 280    pub id: RepositoryId,
 281    pub statuses_by_path: SumTree<StatusEntry>,
 282    pub work_directory_abs_path: Arc<Path>,
 283    /// The working directory of the original repository. For a normal
 284    /// checkout this equals `work_directory_abs_path`. For a git worktree
 285    /// checkout, this is the original repo's working directory — used to
 286    /// anchor new worktree creation so they don't nest.
 287    pub original_repo_abs_path: Arc<Path>,
 288    pub path_style: PathStyle,
 289    pub branch: Option<Branch>,
 290    pub head_commit: Option<CommitDetails>,
 291    pub scan_id: u64,
 292    pub merge: MergeDetails,
 293    pub remote_origin_url: Option<String>,
 294    pub remote_upstream_url: Option<String>,
 295    pub stash_entries: GitStash,
 296    pub linked_worktrees: Arc<[GitWorktree]>,
 297}
 298
 299type JobId = u64;
 300
 301#[derive(Clone, Debug, PartialEq, Eq)]
 302pub struct JobInfo {
 303    pub start: Instant,
 304    pub message: SharedString,
 305}
 306
 307struct GraphCommitDataHandler {
 308    _task: Task<()>,
 309    commit_data_request: smol::channel::Sender<Oid>,
 310}
 311
 312enum GraphCommitHandlerState {
 313    Starting,
 314    Open(GraphCommitDataHandler),
 315    Closed,
 316}
 317
 318pub struct InitialGitGraphData {
 319    fetch_task: Task<()>,
 320    pub error: Option<SharedString>,
 321    pub commit_data: Vec<Arc<InitialGraphCommitData>>,
 322    pub commit_oid_to_index: HashMap<Oid, usize>,
 323}
 324
 325pub struct GraphDataResponse<'a> {
 326    pub commits: &'a [Arc<InitialGraphCommitData>],
 327    pub is_loading: bool,
 328    pub error: Option<SharedString>,
 329}
 330
 331pub struct Repository {
 332    this: WeakEntity<Self>,
 333    snapshot: RepositorySnapshot,
 334    commit_message_buffer: Option<Entity<Buffer>>,
 335    git_store: WeakEntity<GitStore>,
 336    // For a local repository, holds paths that have had worktree events since the last status scan completed,
 337    // and that should be examined during the next status scan.
 338    paths_needing_status_update: Vec<Vec<RepoPath>>,
 339    job_sender: mpsc::UnboundedSender<GitJob>,
 340    active_jobs: HashMap<JobId, JobInfo>,
 341    pending_ops: SumTree<PendingOps>,
 342    job_id: JobId,
 343    askpass_delegates: Arc<Mutex<HashMap<u64, AskPassDelegate>>>,
 344    latest_askpass_id: u64,
 345    repository_state: Shared<Task<Result<RepositoryState, String>>>,
 346    initial_graph_data: HashMap<(LogSource, LogOrder), InitialGitGraphData>,
 347    graph_commit_data_handler: GraphCommitHandlerState,
 348    commit_data: HashMap<Oid, CommitDataState>,
 349}
 350
 351impl std::ops::Deref for Repository {
 352    type Target = RepositorySnapshot;
 353
 354    fn deref(&self) -> &Self::Target {
 355        &self.snapshot
 356    }
 357}
 358
 359#[derive(Clone)]
 360pub struct LocalRepositoryState {
 361    pub fs: Arc<dyn Fs>,
 362    pub backend: Arc<dyn GitRepository>,
 363    pub environment: Arc<HashMap<String, String>>,
 364}
 365
 366impl LocalRepositoryState {
 367    async fn new(
 368        work_directory_abs_path: Arc<Path>,
 369        dot_git_abs_path: Arc<Path>,
 370        project_environment: WeakEntity<ProjectEnvironment>,
 371        fs: Arc<dyn Fs>,
 372        is_trusted: bool,
 373        cx: &mut AsyncApp,
 374    ) -> anyhow::Result<Self> {
 375        let environment = project_environment
 376                .update(cx, |project_environment, cx| {
 377                    project_environment.local_directory_environment(&Shell::System, work_directory_abs_path.clone(), cx)
 378                })?
 379                .await
 380                .unwrap_or_else(|| {
 381                    log::error!("failed to get working directory environment for repository {work_directory_abs_path:?}");
 382                    HashMap::default()
 383                });
 384        let search_paths = environment.get("PATH").map(|val| val.to_owned());
 385        let backend = cx
 386            .background_spawn({
 387                let fs = fs.clone();
 388                async move {
 389                    let system_git_binary_path = search_paths
 390                        .and_then(|search_paths| {
 391                            which::which_in("git", Some(search_paths), &work_directory_abs_path)
 392                                .ok()
 393                        })
 394                        .or_else(|| which::which("git").ok());
 395                    fs.open_repo(&dot_git_abs_path, system_git_binary_path.as_deref())
 396                        .with_context(|| format!("opening repository at {dot_git_abs_path:?}"))
 397                }
 398            })
 399            .await?;
 400        backend.set_trusted(is_trusted);
 401        Ok(LocalRepositoryState {
 402            backend,
 403            environment: Arc::new(environment),
 404            fs,
 405        })
 406    }
 407}
 408
 409#[derive(Clone)]
 410pub struct RemoteRepositoryState {
 411    pub project_id: ProjectId,
 412    pub client: AnyProtoClient,
 413}
 414
 415#[derive(Clone)]
 416pub enum RepositoryState {
 417    Local(LocalRepositoryState),
 418    Remote(RemoteRepositoryState),
 419}
 420
 421#[derive(Clone, Debug, PartialEq, Eq)]
 422pub enum GitGraphEvent {
 423    CountUpdated(usize),
 424    FullyLoaded,
 425    LoadingError,
 426}
 427
 428#[derive(Clone, Debug, PartialEq, Eq)]
 429pub enum RepositoryEvent {
 430    StatusesChanged,
 431    BranchChanged,
 432    StashEntriesChanged,
 433    GitWorktreeListChanged,
 434    PendingOpsChanged { pending_ops: SumTree<PendingOps> },
 435    GraphEvent((LogSource, LogOrder), GitGraphEvent),
 436}
 437
 438#[derive(Clone, Debug)]
 439pub struct JobsUpdated;
 440
 441#[derive(Debug)]
 442pub enum GitStoreEvent {
 443    ActiveRepositoryChanged(Option<RepositoryId>),
 444    /// Bool is true when the repository that's updated is the active repository
 445    RepositoryUpdated(RepositoryId, RepositoryEvent, bool),
 446    RepositoryAdded,
 447    RepositoryRemoved(RepositoryId),
 448    IndexWriteError(anyhow::Error),
 449    JobsUpdated,
 450    ConflictsUpdated,
 451}
 452
 453impl EventEmitter<RepositoryEvent> for Repository {}
 454impl EventEmitter<JobsUpdated> for Repository {}
 455impl EventEmitter<GitStoreEvent> for GitStore {}
 456
 457pub struct GitJob {
 458    job: Box<dyn FnOnce(RepositoryState, &mut AsyncApp) -> Task<()>>,
 459    key: Option<GitJobKey>,
 460}
 461
 462#[derive(PartialEq, Eq)]
 463enum GitJobKey {
 464    WriteIndex(Vec<RepoPath>),
 465    ReloadBufferDiffBases,
 466    RefreshStatuses,
 467    ReloadGitState,
 468}
 469
 470impl GitStore {
 471    pub fn local(
 472        worktree_store: &Entity<WorktreeStore>,
 473        buffer_store: Entity<BufferStore>,
 474        environment: Entity<ProjectEnvironment>,
 475        fs: Arc<dyn Fs>,
 476        cx: &mut Context<Self>,
 477    ) -> Self {
 478        Self::new(
 479            worktree_store.clone(),
 480            buffer_store,
 481            GitStoreState::Local {
 482                next_repository_id: Arc::new(AtomicU64::new(1)),
 483                downstream: None,
 484                project_environment: environment,
 485                fs,
 486            },
 487            cx,
 488        )
 489    }
 490
 491    pub fn remote(
 492        worktree_store: &Entity<WorktreeStore>,
 493        buffer_store: Entity<BufferStore>,
 494        upstream_client: AnyProtoClient,
 495        project_id: u64,
 496        cx: &mut Context<Self>,
 497    ) -> Self {
 498        Self::new(
 499            worktree_store.clone(),
 500            buffer_store,
 501            GitStoreState::Remote {
 502                upstream_client,
 503                upstream_project_id: project_id,
 504                downstream: None,
 505            },
 506            cx,
 507        )
 508    }
 509
 510    fn new(
 511        worktree_store: Entity<WorktreeStore>,
 512        buffer_store: Entity<BufferStore>,
 513        state: GitStoreState,
 514        cx: &mut Context<Self>,
 515    ) -> Self {
 516        let mut _subscriptions = vec![
 517            cx.subscribe(&worktree_store, Self::on_worktree_store_event),
 518            cx.subscribe(&buffer_store, Self::on_buffer_store_event),
 519        ];
 520
 521        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 522            _subscriptions.push(cx.subscribe(&trusted_worktrees, Self::on_trusted_worktrees_event));
 523        }
 524
 525        GitStore {
 526            state,
 527            buffer_store,
 528            worktree_store,
 529            repositories: HashMap::default(),
 530            worktree_ids: HashMap::default(),
 531            active_repo_id: None,
 532            _subscriptions,
 533            loading_diffs: HashMap::default(),
 534            shared_diffs: HashMap::default(),
 535            diffs: HashMap::default(),
 536        }
 537    }
 538
 539    pub fn init(client: &AnyProtoClient) {
 540        client.add_entity_request_handler(Self::handle_get_remotes);
 541        client.add_entity_request_handler(Self::handle_get_branches);
 542        client.add_entity_request_handler(Self::handle_get_default_branch);
 543        client.add_entity_request_handler(Self::handle_change_branch);
 544        client.add_entity_request_handler(Self::handle_create_branch);
 545        client.add_entity_request_handler(Self::handle_rename_branch);
 546        client.add_entity_request_handler(Self::handle_create_remote);
 547        client.add_entity_request_handler(Self::handle_remove_remote);
 548        client.add_entity_request_handler(Self::handle_delete_branch);
 549        client.add_entity_request_handler(Self::handle_git_init);
 550        client.add_entity_request_handler(Self::handle_push);
 551        client.add_entity_request_handler(Self::handle_pull);
 552        client.add_entity_request_handler(Self::handle_fetch);
 553        client.add_entity_request_handler(Self::handle_stage);
 554        client.add_entity_request_handler(Self::handle_unstage);
 555        client.add_entity_request_handler(Self::handle_stash);
 556        client.add_entity_request_handler(Self::handle_stash_pop);
 557        client.add_entity_request_handler(Self::handle_stash_apply);
 558        client.add_entity_request_handler(Self::handle_stash_drop);
 559        client.add_entity_request_handler(Self::handle_commit);
 560        client.add_entity_request_handler(Self::handle_run_hook);
 561        client.add_entity_request_handler(Self::handle_reset);
 562        client.add_entity_request_handler(Self::handle_show);
 563        client.add_entity_request_handler(Self::handle_load_commit_diff);
 564        client.add_entity_request_handler(Self::handle_file_history);
 565        client.add_entity_request_handler(Self::handle_checkout_files);
 566        client.add_entity_request_handler(Self::handle_open_commit_message_buffer);
 567        client.add_entity_request_handler(Self::handle_set_index_text);
 568        client.add_entity_request_handler(Self::handle_askpass);
 569        client.add_entity_request_handler(Self::handle_check_for_pushed_commits);
 570        client.add_entity_request_handler(Self::handle_git_diff);
 571        client.add_entity_request_handler(Self::handle_tree_diff);
 572        client.add_entity_request_handler(Self::handle_get_blob_content);
 573        client.add_entity_request_handler(Self::handle_open_unstaged_diff);
 574        client.add_entity_request_handler(Self::handle_open_uncommitted_diff);
 575        client.add_entity_message_handler(Self::handle_update_diff_bases);
 576        client.add_entity_request_handler(Self::handle_get_permalink_to_line);
 577        client.add_entity_request_handler(Self::handle_blame_buffer);
 578        client.add_entity_message_handler(Self::handle_update_repository);
 579        client.add_entity_message_handler(Self::handle_remove_repository);
 580        client.add_entity_request_handler(Self::handle_git_clone);
 581        client.add_entity_request_handler(Self::handle_get_worktrees);
 582        client.add_entity_request_handler(Self::handle_create_worktree);
 583        client.add_entity_request_handler(Self::handle_remove_worktree);
 584        client.add_entity_request_handler(Self::handle_rename_worktree);
 585    }
 586
 587    pub fn is_local(&self) -> bool {
 588        matches!(self.state, GitStoreState::Local { .. })
 589    }
 590    pub fn set_active_repo_for_path(&mut self, project_path: &ProjectPath, cx: &mut Context<Self>) {
 591        if let Some((repo, _)) = self.repository_and_path_for_project_path(project_path, cx) {
 592            let id = repo.read(cx).id;
 593            if self.active_repo_id != Some(id) {
 594                self.active_repo_id = Some(id);
 595                cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
 596            }
 597        }
 598    }
 599
 600    pub fn shared(&mut self, project_id: u64, client: AnyProtoClient, cx: &mut Context<Self>) {
 601        match &mut self.state {
 602            GitStoreState::Remote {
 603                downstream: downstream_client,
 604                ..
 605            } => {
 606                for repo in self.repositories.values() {
 607                    let update = repo.read(cx).snapshot.initial_update(project_id);
 608                    for update in split_repository_update(update) {
 609                        client.send(update).log_err();
 610                    }
 611                }
 612                *downstream_client = Some((client, ProjectId(project_id)));
 613            }
 614            GitStoreState::Local {
 615                downstream: downstream_client,
 616                ..
 617            } => {
 618                let mut snapshots = HashMap::default();
 619                let (updates_tx, mut updates_rx) = mpsc::unbounded();
 620                for repo in self.repositories.values() {
 621                    updates_tx
 622                        .unbounded_send(DownstreamUpdate::UpdateRepository(
 623                            repo.read(cx).snapshot.clone(),
 624                        ))
 625                        .ok();
 626                }
 627                *downstream_client = Some(LocalDownstreamState {
 628                    client: client.clone(),
 629                    project_id: ProjectId(project_id),
 630                    updates_tx,
 631                    _task: cx.spawn(async move |this, cx| {
 632                        cx.background_spawn(async move {
 633                            while let Some(update) = updates_rx.next().await {
 634                                match update {
 635                                    DownstreamUpdate::UpdateRepository(snapshot) => {
 636                                        if let Some(old_snapshot) = snapshots.get_mut(&snapshot.id)
 637                                        {
 638                                            let update =
 639                                                snapshot.build_update(old_snapshot, project_id);
 640                                            *old_snapshot = snapshot;
 641                                            for update in split_repository_update(update) {
 642                                                client.send(update)?;
 643                                            }
 644                                        } else {
 645                                            let update = snapshot.initial_update(project_id);
 646                                            for update in split_repository_update(update) {
 647                                                client.send(update)?;
 648                                            }
 649                                            snapshots.insert(snapshot.id, snapshot);
 650                                        }
 651                                    }
 652                                    DownstreamUpdate::RemoveRepository(id) => {
 653                                        client.send(proto::RemoveRepository {
 654                                            project_id,
 655                                            id: id.to_proto(),
 656                                        })?;
 657                                    }
 658                                }
 659                            }
 660                            anyhow::Ok(())
 661                        })
 662                        .await
 663                        .ok();
 664                        this.update(cx, |this, _| {
 665                            if let GitStoreState::Local {
 666                                downstream: downstream_client,
 667                                ..
 668                            } = &mut this.state
 669                            {
 670                                downstream_client.take();
 671                            } else {
 672                                unreachable!("unshared called on remote store");
 673                            }
 674                        })
 675                    }),
 676                });
 677            }
 678        }
 679    }
 680
 681    pub fn unshared(&mut self, _cx: &mut Context<Self>) {
 682        match &mut self.state {
 683            GitStoreState::Local {
 684                downstream: downstream_client,
 685                ..
 686            } => {
 687                downstream_client.take();
 688            }
 689            GitStoreState::Remote {
 690                downstream: downstream_client,
 691                ..
 692            } => {
 693                downstream_client.take();
 694            }
 695        }
 696        self.shared_diffs.clear();
 697    }
 698
 699    pub(crate) fn forget_shared_diffs_for(&mut self, peer_id: &proto::PeerId) {
 700        self.shared_diffs.remove(peer_id);
 701    }
 702
 703    pub fn active_repository(&self) -> Option<Entity<Repository>> {
 704        self.active_repo_id
 705            .as_ref()
 706            .map(|id| self.repositories[id].clone())
 707    }
 708
 709    pub fn open_unstaged_diff(
 710        &mut self,
 711        buffer: Entity<Buffer>,
 712        cx: &mut Context<Self>,
 713    ) -> Task<Result<Entity<BufferDiff>>> {
 714        let buffer_id = buffer.read(cx).remote_id();
 715        if let Some(diff_state) = self.diffs.get(&buffer_id)
 716            && let Some(unstaged_diff) = diff_state
 717                .read(cx)
 718                .unstaged_diff
 719                .as_ref()
 720                .and_then(|weak| weak.upgrade())
 721        {
 722            if let Some(task) =
 723                diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 724            {
 725                return cx.background_executor().spawn(async move {
 726                    task.await;
 727                    Ok(unstaged_diff)
 728                });
 729            }
 730            return Task::ready(Ok(unstaged_diff));
 731        }
 732
 733        let Some((repo, repo_path)) =
 734            self.repository_and_path_for_buffer_id(buffer.read(cx).remote_id(), cx)
 735        else {
 736            return Task::ready(Err(anyhow!("failed to find git repository for buffer")));
 737        };
 738
 739        let task = self
 740            .loading_diffs
 741            .entry((buffer_id, DiffKind::Unstaged))
 742            .or_insert_with(|| {
 743                let staged_text = repo.update(cx, |repo, cx| {
 744                    repo.load_staged_text(buffer_id, repo_path, cx)
 745                });
 746                cx.spawn(async move |this, cx| {
 747                    Self::open_diff_internal(
 748                        this,
 749                        DiffKind::Unstaged,
 750                        staged_text.await.map(DiffBasesChange::SetIndex),
 751                        buffer,
 752                        cx,
 753                    )
 754                    .await
 755                    .map_err(Arc::new)
 756                })
 757                .shared()
 758            })
 759            .clone();
 760
 761        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 762    }
 763
 764    pub fn open_diff_since(
 765        &mut self,
 766        oid: Option<git::Oid>,
 767        buffer: Entity<Buffer>,
 768        repo: Entity<Repository>,
 769        cx: &mut Context<Self>,
 770    ) -> Task<Result<Entity<BufferDiff>>> {
 771        let buffer_id = buffer.read(cx).remote_id();
 772
 773        if let Some(diff_state) = self.diffs.get(&buffer_id)
 774            && let Some(oid_diff) = diff_state.read(cx).oid_diff(oid)
 775        {
 776            if let Some(task) =
 777                diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 778            {
 779                return cx.background_executor().spawn(async move {
 780                    task.await;
 781                    Ok(oid_diff)
 782                });
 783            }
 784            return Task::ready(Ok(oid_diff));
 785        }
 786
 787        let diff_kind = DiffKind::SinceOid(oid);
 788        if let Some(task) = self.loading_diffs.get(&(buffer_id, diff_kind)) {
 789            let task = task.clone();
 790            return cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) });
 791        }
 792
 793        let task = cx
 794            .spawn(async move |this, cx| {
 795                let result: Result<Entity<BufferDiff>> = async {
 796                    let buffer_snapshot = buffer.update(cx, |buffer, _| buffer.snapshot());
 797                    let language_registry =
 798                        buffer.update(cx, |buffer, _| buffer.language_registry());
 799                    let content: Option<Arc<str>> = match oid {
 800                        None => None,
 801                        Some(oid) => Some(
 802                            repo.update(cx, |repo, cx| repo.load_blob_content(oid, cx))
 803                                .await?
 804                                .into(),
 805                        ),
 806                    };
 807                    let buffer_diff = cx.new(|cx| BufferDiff::new(&buffer_snapshot, cx));
 808
 809                    buffer_diff
 810                        .update(cx, |buffer_diff, cx| {
 811                            buffer_diff.language_changed(
 812                                buffer_snapshot.language().cloned(),
 813                                language_registry,
 814                                cx,
 815                            );
 816                            buffer_diff.set_base_text(
 817                                content.clone(),
 818                                buffer_snapshot.language().cloned(),
 819                                buffer_snapshot.text,
 820                                cx,
 821                            )
 822                        })
 823                        .await?;
 824                    let unstaged_diff = this
 825                        .update(cx, |this, cx| this.open_unstaged_diff(buffer.clone(), cx))?
 826                        .await?;
 827                    buffer_diff.update(cx, |buffer_diff, _| {
 828                        buffer_diff.set_secondary_diff(unstaged_diff);
 829                    });
 830
 831                    this.update(cx, |this, cx| {
 832                        cx.subscribe(&buffer_diff, Self::on_buffer_diff_event)
 833                            .detach();
 834
 835                        this.loading_diffs.remove(&(buffer_id, diff_kind));
 836
 837                        let git_store = cx.weak_entity();
 838                        let diff_state = this
 839                            .diffs
 840                            .entry(buffer_id)
 841                            .or_insert_with(|| cx.new(|_| BufferGitState::new(git_store)));
 842
 843                        diff_state.update(cx, |state, _| {
 844                            if let Some(oid) = oid {
 845                                if let Some(content) = content {
 846                                    state.oid_texts.insert(oid, content);
 847                                }
 848                            }
 849                            state.oid_diffs.insert(oid, buffer_diff.downgrade());
 850                        });
 851                    })?;
 852
 853                    Ok(buffer_diff)
 854                }
 855                .await;
 856                result.map_err(Arc::new)
 857            })
 858            .shared();
 859
 860        self.loading_diffs
 861            .insert((buffer_id, diff_kind), task.clone());
 862        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 863    }
 864
 865    #[ztracing::instrument(skip_all)]
 866    pub fn open_uncommitted_diff(
 867        &mut self,
 868        buffer: Entity<Buffer>,
 869        cx: &mut Context<Self>,
 870    ) -> Task<Result<Entity<BufferDiff>>> {
 871        let buffer_id = buffer.read(cx).remote_id();
 872
 873        if let Some(diff_state) = self.diffs.get(&buffer_id)
 874            && let Some(uncommitted_diff) = diff_state
 875                .read(cx)
 876                .uncommitted_diff
 877                .as_ref()
 878                .and_then(|weak| weak.upgrade())
 879        {
 880            if let Some(task) =
 881                diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 882            {
 883                return cx.background_executor().spawn(async move {
 884                    task.await;
 885                    Ok(uncommitted_diff)
 886                });
 887            }
 888            return Task::ready(Ok(uncommitted_diff));
 889        }
 890
 891        let Some((repo, repo_path)) =
 892            self.repository_and_path_for_buffer_id(buffer.read(cx).remote_id(), cx)
 893        else {
 894            return Task::ready(Err(anyhow!("failed to find git repository for buffer")));
 895        };
 896
 897        let task = self
 898            .loading_diffs
 899            .entry((buffer_id, DiffKind::Uncommitted))
 900            .or_insert_with(|| {
 901                let changes = repo.update(cx, |repo, cx| {
 902                    repo.load_committed_text(buffer_id, repo_path, cx)
 903                });
 904
 905                // todo(lw): hot foreground spawn
 906                cx.spawn(async move |this, cx| {
 907                    Self::open_diff_internal(this, DiffKind::Uncommitted, changes.await, buffer, cx)
 908                        .await
 909                        .map_err(Arc::new)
 910                })
 911                .shared()
 912            })
 913            .clone();
 914
 915        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 916    }
 917
 918    #[ztracing::instrument(skip_all)]
 919    async fn open_diff_internal(
 920        this: WeakEntity<Self>,
 921        kind: DiffKind,
 922        texts: Result<DiffBasesChange>,
 923        buffer_entity: Entity<Buffer>,
 924        cx: &mut AsyncApp,
 925    ) -> Result<Entity<BufferDiff>> {
 926        let diff_bases_change = match texts {
 927            Err(e) => {
 928                this.update(cx, |this, cx| {
 929                    let buffer = buffer_entity.read(cx);
 930                    let buffer_id = buffer.remote_id();
 931                    this.loading_diffs.remove(&(buffer_id, kind));
 932                })?;
 933                return Err(e);
 934            }
 935            Ok(change) => change,
 936        };
 937
 938        this.update(cx, |this, cx| {
 939            let buffer = buffer_entity.read(cx);
 940            let buffer_id = buffer.remote_id();
 941            let language = buffer.language().cloned();
 942            let language_registry = buffer.language_registry();
 943            let text_snapshot = buffer.text_snapshot();
 944            this.loading_diffs.remove(&(buffer_id, kind));
 945
 946            let git_store = cx.weak_entity();
 947            let diff_state = this
 948                .diffs
 949                .entry(buffer_id)
 950                .or_insert_with(|| cx.new(|_| BufferGitState::new(git_store)));
 951
 952            let diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
 953
 954            cx.subscribe(&diff, Self::on_buffer_diff_event).detach();
 955            diff_state.update(cx, |diff_state, cx| {
 956                diff_state.language_changed = true;
 957                diff_state.language = language;
 958                diff_state.language_registry = language_registry;
 959
 960                match kind {
 961                    DiffKind::Unstaged => diff_state.unstaged_diff = Some(diff.downgrade()),
 962                    DiffKind::Uncommitted => {
 963                        let unstaged_diff = if let Some(diff) = diff_state.unstaged_diff() {
 964                            diff
 965                        } else {
 966                            let unstaged_diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
 967                            diff_state.unstaged_diff = Some(unstaged_diff.downgrade());
 968                            unstaged_diff
 969                        };
 970
 971                        diff.update(cx, |diff, _| diff.set_secondary_diff(unstaged_diff));
 972                        diff_state.uncommitted_diff = Some(diff.downgrade())
 973                    }
 974                    DiffKind::SinceOid(_) => {
 975                        unreachable!("open_diff_internal is not used for OID diffs")
 976                    }
 977                }
 978
 979                diff_state.diff_bases_changed(text_snapshot, Some(diff_bases_change), cx);
 980                let rx = diff_state.wait_for_recalculation();
 981
 982                anyhow::Ok(async move {
 983                    if let Some(rx) = rx {
 984                        rx.await;
 985                    }
 986                    Ok(diff)
 987                })
 988            })
 989        })??
 990        .await
 991    }
 992
 993    pub fn get_unstaged_diff(&self, buffer_id: BufferId, cx: &App) -> Option<Entity<BufferDiff>> {
 994        let diff_state = self.diffs.get(&buffer_id)?;
 995        diff_state.read(cx).unstaged_diff.as_ref()?.upgrade()
 996    }
 997
 998    pub fn get_uncommitted_diff(
 999        &self,
1000        buffer_id: BufferId,
1001        cx: &App,
1002    ) -> Option<Entity<BufferDiff>> {
1003        let diff_state = self.diffs.get(&buffer_id)?;
1004        diff_state.read(cx).uncommitted_diff.as_ref()?.upgrade()
1005    }
1006
1007    pub fn get_diff_since_oid(
1008        &self,
1009        buffer_id: BufferId,
1010        oid: Option<git::Oid>,
1011        cx: &App,
1012    ) -> Option<Entity<BufferDiff>> {
1013        let diff_state = self.diffs.get(&buffer_id)?;
1014        diff_state.read(cx).oid_diff(oid)
1015    }
1016
1017    pub fn open_conflict_set(
1018        &mut self,
1019        buffer: Entity<Buffer>,
1020        cx: &mut Context<Self>,
1021    ) -> Entity<ConflictSet> {
1022        log::debug!("open conflict set");
1023        let buffer_id = buffer.read(cx).remote_id();
1024
1025        if let Some(git_state) = self.diffs.get(&buffer_id)
1026            && let Some(conflict_set) = git_state
1027                .read(cx)
1028                .conflict_set
1029                .as_ref()
1030                .and_then(|weak| weak.upgrade())
1031        {
1032            let conflict_set = conflict_set;
1033            let buffer_snapshot = buffer.read(cx).text_snapshot();
1034
1035            git_state.update(cx, |state, cx| {
1036                let _ = state.reparse_conflict_markers(buffer_snapshot, cx);
1037            });
1038
1039            return conflict_set;
1040        }
1041
1042        let is_unmerged = self
1043            .repository_and_path_for_buffer_id(buffer_id, cx)
1044            .is_some_and(|(repo, path)| repo.read(cx).snapshot.has_conflict(&path));
1045        let git_store = cx.weak_entity();
1046        let buffer_git_state = self
1047            .diffs
1048            .entry(buffer_id)
1049            .or_insert_with(|| cx.new(|_| BufferGitState::new(git_store)));
1050        let conflict_set = cx.new(|cx| ConflictSet::new(buffer_id, is_unmerged, cx));
1051
1052        self._subscriptions
1053            .push(cx.subscribe(&conflict_set, |_, _, _, cx| {
1054                cx.emit(GitStoreEvent::ConflictsUpdated);
1055            }));
1056
1057        buffer_git_state.update(cx, |state, cx| {
1058            state.conflict_set = Some(conflict_set.downgrade());
1059            let buffer_snapshot = buffer.read(cx).text_snapshot();
1060            let _ = state.reparse_conflict_markers(buffer_snapshot, cx);
1061        });
1062
1063        conflict_set
1064    }
1065
1066    pub fn project_path_git_status(
1067        &self,
1068        project_path: &ProjectPath,
1069        cx: &App,
1070    ) -> Option<FileStatus> {
1071        let (repo, repo_path) = self.repository_and_path_for_project_path(project_path, cx)?;
1072        Some(repo.read(cx).status_for_path(&repo_path)?.status)
1073    }
1074
1075    pub fn checkpoint(&self, cx: &mut App) -> Task<Result<GitStoreCheckpoint>> {
1076        let mut work_directory_abs_paths = Vec::new();
1077        let mut checkpoints = Vec::new();
1078        for repository in self.repositories.values() {
1079            repository.update(cx, |repository, _| {
1080                work_directory_abs_paths.push(repository.snapshot.work_directory_abs_path.clone());
1081                checkpoints.push(repository.checkpoint().map(|checkpoint| checkpoint?));
1082            });
1083        }
1084
1085        cx.background_executor().spawn(async move {
1086            let checkpoints = future::try_join_all(checkpoints).await?;
1087            Ok(GitStoreCheckpoint {
1088                checkpoints_by_work_dir_abs_path: work_directory_abs_paths
1089                    .into_iter()
1090                    .zip(checkpoints)
1091                    .collect(),
1092            })
1093        })
1094    }
1095
1096    pub fn restore_checkpoint(
1097        &self,
1098        checkpoint: GitStoreCheckpoint,
1099        cx: &mut App,
1100    ) -> Task<Result<()>> {
1101        let repositories_by_work_dir_abs_path = self
1102            .repositories
1103            .values()
1104            .map(|repo| (repo.read(cx).snapshot.work_directory_abs_path.clone(), repo))
1105            .collect::<HashMap<_, _>>();
1106
1107        let mut tasks = Vec::new();
1108        for (work_dir_abs_path, checkpoint) in checkpoint.checkpoints_by_work_dir_abs_path {
1109            if let Some(repository) = repositories_by_work_dir_abs_path.get(&work_dir_abs_path) {
1110                let restore = repository.update(cx, |repository, _| {
1111                    repository.restore_checkpoint(checkpoint)
1112                });
1113                tasks.push(async move { restore.await? });
1114            }
1115        }
1116        cx.background_spawn(async move {
1117            future::try_join_all(tasks).await?;
1118            Ok(())
1119        })
1120    }
1121
1122    /// Compares two checkpoints, returning true if they are equal.
1123    pub fn compare_checkpoints(
1124        &self,
1125        left: GitStoreCheckpoint,
1126        mut right: GitStoreCheckpoint,
1127        cx: &mut App,
1128    ) -> Task<Result<bool>> {
1129        let repositories_by_work_dir_abs_path = self
1130            .repositories
1131            .values()
1132            .map(|repo| (repo.read(cx).snapshot.work_directory_abs_path.clone(), repo))
1133            .collect::<HashMap<_, _>>();
1134
1135        let mut tasks = Vec::new();
1136        for (work_dir_abs_path, left_checkpoint) in left.checkpoints_by_work_dir_abs_path {
1137            if let Some(right_checkpoint) = right
1138                .checkpoints_by_work_dir_abs_path
1139                .remove(&work_dir_abs_path)
1140            {
1141                if let Some(repository) = repositories_by_work_dir_abs_path.get(&work_dir_abs_path)
1142                {
1143                    let compare = repository.update(cx, |repository, _| {
1144                        repository.compare_checkpoints(left_checkpoint, right_checkpoint)
1145                    });
1146
1147                    tasks.push(async move { compare.await? });
1148                }
1149            } else {
1150                return Task::ready(Ok(false));
1151            }
1152        }
1153        cx.background_spawn(async move {
1154            Ok(future::try_join_all(tasks)
1155                .await?
1156                .into_iter()
1157                .all(|result| result))
1158        })
1159    }
1160
1161    /// Blames a buffer.
1162    pub fn blame_buffer(
1163        &self,
1164        buffer: &Entity<Buffer>,
1165        version: Option<clock::Global>,
1166        cx: &mut Context<Self>,
1167    ) -> Task<Result<Option<Blame>>> {
1168        let buffer = buffer.read(cx);
1169        let Some((repo, repo_path)) =
1170            self.repository_and_path_for_buffer_id(buffer.remote_id(), cx)
1171        else {
1172            return Task::ready(Err(anyhow!("failed to find a git repository for buffer")));
1173        };
1174        let content = match &version {
1175            Some(version) => buffer.rope_for_version(version),
1176            None => buffer.as_rope().clone(),
1177        };
1178        let line_ending = buffer.line_ending();
1179        let version = version.unwrap_or(buffer.version());
1180        let buffer_id = buffer.remote_id();
1181
1182        let repo = repo.downgrade();
1183        cx.spawn(async move |_, cx| {
1184            let repository_state = repo
1185                .update(cx, |repo, _| repo.repository_state.clone())?
1186                .await
1187                .map_err(|err| anyhow::anyhow!(err))?;
1188            match repository_state {
1189                RepositoryState::Local(LocalRepositoryState { backend, .. }) => backend
1190                    .blame(repo_path.clone(), content, line_ending)
1191                    .await
1192                    .with_context(|| format!("Failed to blame {:?}", repo_path.as_ref()))
1193                    .map(Some),
1194                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
1195                    let response = client
1196                        .request(proto::BlameBuffer {
1197                            project_id: project_id.to_proto(),
1198                            buffer_id: buffer_id.into(),
1199                            version: serialize_version(&version),
1200                        })
1201                        .await?;
1202                    Ok(deserialize_blame_buffer_response(response))
1203                }
1204            }
1205        })
1206    }
1207
1208    pub fn file_history(
1209        &self,
1210        repo: &Entity<Repository>,
1211        path: RepoPath,
1212        cx: &mut App,
1213    ) -> Task<Result<git::repository::FileHistory>> {
1214        let rx = repo.update(cx, |repo, _| repo.file_history(path));
1215
1216        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
1217    }
1218
1219    pub fn file_history_paginated(
1220        &self,
1221        repo: &Entity<Repository>,
1222        path: RepoPath,
1223        skip: usize,
1224        limit: Option<usize>,
1225        cx: &mut App,
1226    ) -> Task<Result<git::repository::FileHistory>> {
1227        let rx = repo.update(cx, |repo, _| repo.file_history_paginated(path, skip, limit));
1228
1229        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
1230    }
1231
1232    pub fn get_permalink_to_line(
1233        &self,
1234        buffer: &Entity<Buffer>,
1235        selection: Range<u32>,
1236        cx: &mut App,
1237    ) -> Task<Result<url::Url>> {
1238        let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1239            return Task::ready(Err(anyhow!("buffer has no file")));
1240        };
1241
1242        let Some((repo, repo_path)) = self.repository_and_path_for_project_path(
1243            &(file.worktree.read(cx).id(), file.path.clone()).into(),
1244            cx,
1245        ) else {
1246            // If we're not in a Git repo, check whether this is a Rust source
1247            // file in the Cargo registry (presumably opened with go-to-definition
1248            // from a normal Rust file). If so, we can put together a permalink
1249            // using crate metadata.
1250            if buffer
1251                .read(cx)
1252                .language()
1253                .is_none_or(|lang| lang.name() != "Rust")
1254            {
1255                return Task::ready(Err(anyhow!("no permalink available")));
1256            }
1257            let file_path = file.worktree.read(cx).absolutize(&file.path);
1258            return cx.spawn(async move |cx| {
1259                let provider_registry = cx.update(GitHostingProviderRegistry::default_global);
1260                get_permalink_in_rust_registry_src(provider_registry, file_path, selection)
1261                    .context("no permalink available")
1262            });
1263        };
1264
1265        let buffer_id = buffer.read(cx).remote_id();
1266        let branch = repo.read(cx).branch.clone();
1267        let remote = branch
1268            .as_ref()
1269            .and_then(|b| b.upstream.as_ref())
1270            .and_then(|b| b.remote_name())
1271            .unwrap_or("origin")
1272            .to_string();
1273
1274        let rx = repo.update(cx, |repo, _| {
1275            repo.send_job(None, move |state, cx| async move {
1276                match state {
1277                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
1278                        let origin_url = backend
1279                            .remote_url(&remote)
1280                            .await
1281                            .with_context(|| format!("remote \"{remote}\" not found"))?;
1282
1283                        let sha = backend.head_sha().await.context("reading HEAD SHA")?;
1284
1285                        let provider_registry =
1286                            cx.update(GitHostingProviderRegistry::default_global);
1287
1288                        let (provider, remote) =
1289                            parse_git_remote_url(provider_registry, &origin_url)
1290                                .context("parsing Git remote URL")?;
1291
1292                        Ok(provider.build_permalink(
1293                            remote,
1294                            BuildPermalinkParams::new(&sha, &repo_path, Some(selection)),
1295                        ))
1296                    }
1297                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
1298                        let response = client
1299                            .request(proto::GetPermalinkToLine {
1300                                project_id: project_id.to_proto(),
1301                                buffer_id: buffer_id.into(),
1302                                selection: Some(proto::Range {
1303                                    start: selection.start as u64,
1304                                    end: selection.end as u64,
1305                                }),
1306                            })
1307                            .await?;
1308
1309                        url::Url::parse(&response.permalink).context("failed to parse permalink")
1310                    }
1311                }
1312            })
1313        });
1314        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
1315    }
1316
1317    fn downstream_client(&self) -> Option<(AnyProtoClient, ProjectId)> {
1318        match &self.state {
1319            GitStoreState::Local {
1320                downstream: downstream_client,
1321                ..
1322            } => downstream_client
1323                .as_ref()
1324                .map(|state| (state.client.clone(), state.project_id)),
1325            GitStoreState::Remote {
1326                downstream: downstream_client,
1327                ..
1328            } => downstream_client.clone(),
1329        }
1330    }
1331
1332    fn upstream_client(&self) -> Option<AnyProtoClient> {
1333        match &self.state {
1334            GitStoreState::Local { .. } => None,
1335            GitStoreState::Remote {
1336                upstream_client, ..
1337            } => Some(upstream_client.clone()),
1338        }
1339    }
1340
1341    fn on_worktree_store_event(
1342        &mut self,
1343        worktree_store: Entity<WorktreeStore>,
1344        event: &WorktreeStoreEvent,
1345        cx: &mut Context<Self>,
1346    ) {
1347        let GitStoreState::Local {
1348            project_environment,
1349            downstream,
1350            next_repository_id,
1351            fs,
1352        } = &self.state
1353        else {
1354            return;
1355        };
1356
1357        match event {
1358            WorktreeStoreEvent::WorktreeUpdatedEntries(worktree_id, updated_entries) => {
1359                if let Some(worktree) = self
1360                    .worktree_store
1361                    .read(cx)
1362                    .worktree_for_id(*worktree_id, cx)
1363                {
1364                    let paths_by_git_repo =
1365                        self.process_updated_entries(&worktree, updated_entries, cx);
1366                    let downstream = downstream
1367                        .as_ref()
1368                        .map(|downstream| downstream.updates_tx.clone());
1369                    cx.spawn(async move |_, cx| {
1370                        let paths_by_git_repo = paths_by_git_repo.await;
1371                        for (repo, paths) in paths_by_git_repo {
1372                            repo.update(cx, |repo, cx| {
1373                                repo.paths_changed(paths, downstream.clone(), cx);
1374                            });
1375                        }
1376                    })
1377                    .detach();
1378                }
1379            }
1380            WorktreeStoreEvent::WorktreeUpdatedGitRepositories(worktree_id, changed_repos) => {
1381                let Some(worktree) = worktree_store.read(cx).worktree_for_id(*worktree_id, cx)
1382                else {
1383                    return;
1384                };
1385                if !worktree.read(cx).is_visible() {
1386                    log::debug!(
1387                        "not adding repositories for local worktree {:?} because it's not visible",
1388                        worktree.read(cx).abs_path()
1389                    );
1390                    return;
1391                }
1392                self.update_repositories_from_worktree(
1393                    *worktree_id,
1394                    project_environment.clone(),
1395                    next_repository_id.clone(),
1396                    downstream
1397                        .as_ref()
1398                        .map(|downstream| downstream.updates_tx.clone()),
1399                    changed_repos.clone(),
1400                    fs.clone(),
1401                    cx,
1402                );
1403                self.local_worktree_git_repos_changed(worktree, changed_repos, cx);
1404            }
1405            WorktreeStoreEvent::WorktreeRemoved(_entity_id, worktree_id) => {
1406                let repos_without_worktree: Vec<RepositoryId> = self
1407                    .worktree_ids
1408                    .iter_mut()
1409                    .filter_map(|(repo_id, worktree_ids)| {
1410                        worktree_ids.remove(worktree_id);
1411                        if worktree_ids.is_empty() {
1412                            Some(*repo_id)
1413                        } else {
1414                            None
1415                        }
1416                    })
1417                    .collect();
1418                let is_active_repo_removed = repos_without_worktree
1419                    .iter()
1420                    .any(|repo_id| self.active_repo_id == Some(*repo_id));
1421
1422                for repo_id in repos_without_worktree {
1423                    self.repositories.remove(&repo_id);
1424                    self.worktree_ids.remove(&repo_id);
1425                    if let Some(updates_tx) =
1426                        downstream.as_ref().map(|downstream| &downstream.updates_tx)
1427                    {
1428                        updates_tx
1429                            .unbounded_send(DownstreamUpdate::RemoveRepository(repo_id))
1430                            .ok();
1431                    }
1432                }
1433
1434                if is_active_repo_removed {
1435                    if let Some((&repo_id, _)) = self.repositories.iter().next() {
1436                        self.active_repo_id = Some(repo_id);
1437                        cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(repo_id)));
1438                    } else {
1439                        self.active_repo_id = None;
1440                        cx.emit(GitStoreEvent::ActiveRepositoryChanged(None));
1441                    }
1442                }
1443            }
1444            _ => {}
1445        }
1446    }
1447    fn on_repository_event(
1448        &mut self,
1449        repo: Entity<Repository>,
1450        event: &RepositoryEvent,
1451        cx: &mut Context<Self>,
1452    ) {
1453        let id = repo.read(cx).id;
1454        let repo_snapshot = repo.read(cx).snapshot.clone();
1455        for (buffer_id, diff) in self.diffs.iter() {
1456            if let Some((buffer_repo, repo_path)) =
1457                self.repository_and_path_for_buffer_id(*buffer_id, cx)
1458                && buffer_repo == repo
1459            {
1460                diff.update(cx, |diff, cx| {
1461                    if let Some(conflict_set) = &diff.conflict_set {
1462                        let conflict_status_changed =
1463                            conflict_set.update(cx, |conflict_set, cx| {
1464                                let has_conflict = repo_snapshot.has_conflict(&repo_path);
1465                                conflict_set.set_has_conflict(has_conflict, cx)
1466                            })?;
1467                        if conflict_status_changed {
1468                            let buffer_store = self.buffer_store.read(cx);
1469                            if let Some(buffer) = buffer_store.get(*buffer_id) {
1470                                let _ = diff
1471                                    .reparse_conflict_markers(buffer.read(cx).text_snapshot(), cx);
1472                            }
1473                        }
1474                    }
1475                    anyhow::Ok(())
1476                })
1477                .ok();
1478            }
1479        }
1480        cx.emit(GitStoreEvent::RepositoryUpdated(
1481            id,
1482            event.clone(),
1483            self.active_repo_id == Some(id),
1484        ))
1485    }
1486
1487    fn on_jobs_updated(&mut self, _: Entity<Repository>, _: &JobsUpdated, cx: &mut Context<Self>) {
1488        cx.emit(GitStoreEvent::JobsUpdated)
1489    }
1490
1491    /// Update our list of repositories and schedule git scans in response to a notification from a worktree,
1492    fn update_repositories_from_worktree(
1493        &mut self,
1494        worktree_id: WorktreeId,
1495        project_environment: Entity<ProjectEnvironment>,
1496        next_repository_id: Arc<AtomicU64>,
1497        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
1498        updated_git_repositories: UpdatedGitRepositoriesSet,
1499        fs: Arc<dyn Fs>,
1500        cx: &mut Context<Self>,
1501    ) {
1502        let mut removed_ids = Vec::new();
1503        for update in updated_git_repositories.iter() {
1504            if let Some((id, existing)) = self.repositories.iter().find(|(_, repo)| {
1505                let existing_work_directory_abs_path =
1506                    repo.read(cx).work_directory_abs_path.clone();
1507                Some(&existing_work_directory_abs_path)
1508                    == update.old_work_directory_abs_path.as_ref()
1509                    || Some(&existing_work_directory_abs_path)
1510                        == update.new_work_directory_abs_path.as_ref()
1511            }) {
1512                let repo_id = *id;
1513                if let Some(new_work_directory_abs_path) =
1514                    update.new_work_directory_abs_path.clone()
1515                {
1516                    self.worktree_ids
1517                        .entry(repo_id)
1518                        .or_insert_with(HashSet::new)
1519                        .insert(worktree_id);
1520                    existing.update(cx, |existing, cx| {
1521                        existing.snapshot.work_directory_abs_path = new_work_directory_abs_path;
1522                        existing.schedule_scan(updates_tx.clone(), cx);
1523                    });
1524                } else {
1525                    if let Some(worktree_ids) = self.worktree_ids.get_mut(&repo_id) {
1526                        worktree_ids.remove(&worktree_id);
1527                        if worktree_ids.is_empty() {
1528                            removed_ids.push(repo_id);
1529                        }
1530                    }
1531                }
1532            } else if let UpdatedGitRepository {
1533                new_work_directory_abs_path: Some(work_directory_abs_path),
1534                dot_git_abs_path: Some(dot_git_abs_path),
1535                repository_dir_abs_path: Some(_repository_dir_abs_path),
1536                common_dir_abs_path: Some(common_dir_abs_path),
1537                ..
1538            } = update
1539            {
1540                let original_repo_abs_path: Arc<Path> =
1541                    git::repository::original_repo_path_from_common_dir(common_dir_abs_path).into();
1542                let id = RepositoryId(next_repository_id.fetch_add(1, atomic::Ordering::Release));
1543                let is_trusted = TrustedWorktrees::try_get_global(cx)
1544                    .map(|trusted_worktrees| {
1545                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
1546                            trusted_worktrees.can_trust(&self.worktree_store, worktree_id, cx)
1547                        })
1548                    })
1549                    .unwrap_or(false);
1550                let git_store = cx.weak_entity();
1551                let repo = cx.new(|cx| {
1552                    let mut repo = Repository::local(
1553                        id,
1554                        work_directory_abs_path.clone(),
1555                        original_repo_abs_path.clone(),
1556                        dot_git_abs_path.clone(),
1557                        project_environment.downgrade(),
1558                        fs.clone(),
1559                        is_trusted,
1560                        git_store,
1561                        cx,
1562                    );
1563                    if let Some(updates_tx) = updates_tx.as_ref() {
1564                        // trigger an empty `UpdateRepository` to ensure remote active_repo_id is set correctly
1565                        updates_tx
1566                            .unbounded_send(DownstreamUpdate::UpdateRepository(repo.snapshot()))
1567                            .ok();
1568                    }
1569                    repo.schedule_scan(updates_tx.clone(), cx);
1570                    repo
1571                });
1572                self._subscriptions
1573                    .push(cx.subscribe(&repo, Self::on_repository_event));
1574                self._subscriptions
1575                    .push(cx.subscribe(&repo, Self::on_jobs_updated));
1576                self.repositories.insert(id, repo);
1577                self.worktree_ids.insert(id, HashSet::from([worktree_id]));
1578                cx.emit(GitStoreEvent::RepositoryAdded);
1579                self.active_repo_id.get_or_insert_with(|| {
1580                    cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
1581                    id
1582                });
1583            }
1584        }
1585
1586        for id in removed_ids {
1587            if self.active_repo_id == Some(id) {
1588                self.active_repo_id = None;
1589                cx.emit(GitStoreEvent::ActiveRepositoryChanged(None));
1590            }
1591            self.repositories.remove(&id);
1592            if let Some(updates_tx) = updates_tx.as_ref() {
1593                updates_tx
1594                    .unbounded_send(DownstreamUpdate::RemoveRepository(id))
1595                    .ok();
1596            }
1597        }
1598    }
1599
1600    fn on_trusted_worktrees_event(
1601        &mut self,
1602        _: Entity<TrustedWorktreesStore>,
1603        event: &TrustedWorktreesEvent,
1604        cx: &mut Context<Self>,
1605    ) {
1606        if !matches!(self.state, GitStoreState::Local { .. }) {
1607            return;
1608        }
1609
1610        let (is_trusted, event_paths) = match event {
1611            TrustedWorktreesEvent::Trusted(_, trusted_paths) => (true, trusted_paths),
1612            TrustedWorktreesEvent::Restricted(_, restricted_paths) => (false, restricted_paths),
1613        };
1614
1615        for (repo_id, worktree_ids) in &self.worktree_ids {
1616            if worktree_ids
1617                .iter()
1618                .any(|worktree_id| event_paths.contains(&PathTrust::Worktree(*worktree_id)))
1619            {
1620                if let Some(repo) = self.repositories.get(repo_id) {
1621                    let repository_state = repo.read(cx).repository_state.clone();
1622                    cx.background_spawn(async move {
1623                        if let Ok(RepositoryState::Local(state)) = repository_state.await {
1624                            state.backend.set_trusted(is_trusted);
1625                        }
1626                    })
1627                    .detach();
1628                }
1629            }
1630        }
1631    }
1632
1633    fn on_buffer_store_event(
1634        &mut self,
1635        _: Entity<BufferStore>,
1636        event: &BufferStoreEvent,
1637        cx: &mut Context<Self>,
1638    ) {
1639        match event {
1640            BufferStoreEvent::BufferAdded(buffer) => {
1641                cx.subscribe(buffer, |this, buffer, event, cx| {
1642                    if let BufferEvent::LanguageChanged(_) = event {
1643                        let buffer_id = buffer.read(cx).remote_id();
1644                        if let Some(diff_state) = this.diffs.get(&buffer_id) {
1645                            diff_state.update(cx, |diff_state, cx| {
1646                                diff_state.buffer_language_changed(buffer, cx);
1647                            });
1648                        }
1649                    }
1650                })
1651                .detach();
1652            }
1653            BufferStoreEvent::SharedBufferClosed(peer_id, buffer_id) => {
1654                if let Some(diffs) = self.shared_diffs.get_mut(peer_id) {
1655                    diffs.remove(buffer_id);
1656                }
1657            }
1658            BufferStoreEvent::BufferDropped(buffer_id) => {
1659                self.diffs.remove(buffer_id);
1660                for diffs in self.shared_diffs.values_mut() {
1661                    diffs.remove(buffer_id);
1662                }
1663            }
1664            BufferStoreEvent::BufferChangedFilePath { buffer, .. } => {
1665                // Whenever a buffer's file path changes, it's possible that the
1666                // new path is actually a path that is being tracked by a git
1667                // repository. In that case, we'll want to update the buffer's
1668                // `BufferDiffState`, in case it already has one.
1669                let buffer_id = buffer.read(cx).remote_id();
1670                let diff_state = self.diffs.get(&buffer_id);
1671                let repo = self.repository_and_path_for_buffer_id(buffer_id, cx);
1672
1673                if let Some(diff_state) = diff_state
1674                    && let Some((repo, repo_path)) = repo
1675                {
1676                    let buffer = buffer.clone();
1677                    let diff_state = diff_state.clone();
1678
1679                    cx.spawn(async move |_git_store, cx| {
1680                        async {
1681                            let diff_bases_change = repo
1682                                .update(cx, |repo, cx| {
1683                                    repo.load_committed_text(buffer_id, repo_path, cx)
1684                                })
1685                                .await?;
1686
1687                            diff_state.update(cx, |diff_state, cx| {
1688                                let buffer_snapshot = buffer.read(cx).text_snapshot();
1689                                diff_state.diff_bases_changed(
1690                                    buffer_snapshot,
1691                                    Some(diff_bases_change),
1692                                    cx,
1693                                );
1694                            });
1695                            anyhow::Ok(())
1696                        }
1697                        .await
1698                        .log_err();
1699                    })
1700                    .detach();
1701                }
1702            }
1703        }
1704    }
1705
1706    pub fn recalculate_buffer_diffs(
1707        &mut self,
1708        buffers: Vec<Entity<Buffer>>,
1709        cx: &mut Context<Self>,
1710    ) -> impl Future<Output = ()> + use<> {
1711        let mut futures = Vec::new();
1712        for buffer in buffers {
1713            if let Some(diff_state) = self.diffs.get_mut(&buffer.read(cx).remote_id()) {
1714                let buffer = buffer.read(cx).text_snapshot();
1715                diff_state.update(cx, |diff_state, cx| {
1716                    diff_state.recalculate_diffs(buffer.clone(), cx);
1717                    futures.extend(diff_state.wait_for_recalculation().map(FutureExt::boxed));
1718                });
1719                futures.push(diff_state.update(cx, |diff_state, cx| {
1720                    diff_state
1721                        .reparse_conflict_markers(buffer, cx)
1722                        .map(|_| {})
1723                        .boxed()
1724                }));
1725            }
1726        }
1727        async move {
1728            futures::future::join_all(futures).await;
1729        }
1730    }
1731
1732    fn on_buffer_diff_event(
1733        &mut self,
1734        diff: Entity<buffer_diff::BufferDiff>,
1735        event: &BufferDiffEvent,
1736        cx: &mut Context<Self>,
1737    ) {
1738        if let BufferDiffEvent::HunksStagedOrUnstaged(new_index_text) = event {
1739            let buffer_id = diff.read(cx).buffer_id;
1740            if let Some(diff_state) = self.diffs.get(&buffer_id) {
1741                let hunk_staging_operation_count = diff_state.update(cx, |diff_state, _| {
1742                    diff_state.hunk_staging_operation_count += 1;
1743                    diff_state.hunk_staging_operation_count
1744                });
1745                if let Some((repo, path)) = self.repository_and_path_for_buffer_id(buffer_id, cx) {
1746                    let recv = repo.update(cx, |repo, cx| {
1747                        log::debug!("hunks changed for {}", path.as_unix_str());
1748                        repo.spawn_set_index_text_job(
1749                            path,
1750                            new_index_text.as_ref().map(|rope| rope.to_string()),
1751                            Some(hunk_staging_operation_count),
1752                            cx,
1753                        )
1754                    });
1755                    let diff = diff.downgrade();
1756                    cx.spawn(async move |this, cx| {
1757                        if let Ok(Err(error)) = cx.background_spawn(recv).await {
1758                            diff.update(cx, |diff, cx| {
1759                                diff.clear_pending_hunks(cx);
1760                            })
1761                            .ok();
1762                            this.update(cx, |_, cx| cx.emit(GitStoreEvent::IndexWriteError(error)))
1763                                .ok();
1764                        }
1765                    })
1766                    .detach();
1767                }
1768            }
1769        }
1770    }
1771
1772    fn local_worktree_git_repos_changed(
1773        &mut self,
1774        worktree: Entity<Worktree>,
1775        changed_repos: &UpdatedGitRepositoriesSet,
1776        cx: &mut Context<Self>,
1777    ) {
1778        log::debug!("local worktree repos changed");
1779        debug_assert!(worktree.read(cx).is_local());
1780
1781        for repository in self.repositories.values() {
1782            repository.update(cx, |repository, cx| {
1783                let repo_abs_path = &repository.work_directory_abs_path;
1784                if changed_repos.iter().any(|update| {
1785                    update.old_work_directory_abs_path.as_ref() == Some(repo_abs_path)
1786                        || update.new_work_directory_abs_path.as_ref() == Some(repo_abs_path)
1787                }) {
1788                    repository.reload_buffer_diff_bases(cx);
1789                }
1790            });
1791        }
1792    }
1793
1794    pub fn repositories(&self) -> &HashMap<RepositoryId, Entity<Repository>> {
1795        &self.repositories
1796    }
1797
1798    pub fn status_for_buffer_id(&self, buffer_id: BufferId, cx: &App) -> Option<FileStatus> {
1799        let (repo, path) = self.repository_and_path_for_buffer_id(buffer_id, cx)?;
1800        let status = repo.read(cx).snapshot.status_for_path(&path)?;
1801        Some(status.status)
1802    }
1803
1804    pub fn repository_and_path_for_buffer_id(
1805        &self,
1806        buffer_id: BufferId,
1807        cx: &App,
1808    ) -> Option<(Entity<Repository>, RepoPath)> {
1809        let buffer = self.buffer_store.read(cx).get(buffer_id)?;
1810        let project_path = buffer.read(cx).project_path(cx)?;
1811        self.repository_and_path_for_project_path(&project_path, cx)
1812    }
1813
1814    pub fn repository_and_path_for_project_path(
1815        &self,
1816        path: &ProjectPath,
1817        cx: &App,
1818    ) -> Option<(Entity<Repository>, RepoPath)> {
1819        let abs_path = self.worktree_store.read(cx).absolutize(path, cx)?;
1820        self.repositories
1821            .values()
1822            .filter_map(|repo| {
1823                let repo_path = repo.read(cx).abs_path_to_repo_path(&abs_path)?;
1824                Some((repo.clone(), repo_path))
1825            })
1826            .max_by_key(|(repo, _)| repo.read(cx).work_directory_abs_path.clone())
1827    }
1828
1829    pub fn git_init(
1830        &self,
1831        path: Arc<Path>,
1832        fallback_branch_name: String,
1833        cx: &App,
1834    ) -> Task<Result<()>> {
1835        match &self.state {
1836            GitStoreState::Local { fs, .. } => {
1837                let fs = fs.clone();
1838                cx.background_executor()
1839                    .spawn(async move { fs.git_init(&path, fallback_branch_name).await })
1840            }
1841            GitStoreState::Remote {
1842                upstream_client,
1843                upstream_project_id: project_id,
1844                ..
1845            } => {
1846                let client = upstream_client.clone();
1847                let project_id = *project_id;
1848                cx.background_executor().spawn(async move {
1849                    client
1850                        .request(proto::GitInit {
1851                            project_id: project_id,
1852                            abs_path: path.to_string_lossy().into_owned(),
1853                            fallback_branch_name,
1854                        })
1855                        .await?;
1856                    Ok(())
1857                })
1858            }
1859        }
1860    }
1861
1862    pub fn git_clone(
1863        &self,
1864        repo: String,
1865        path: impl Into<Arc<std::path::Path>>,
1866        cx: &App,
1867    ) -> Task<Result<()>> {
1868        let path = path.into();
1869        match &self.state {
1870            GitStoreState::Local { fs, .. } => {
1871                let fs = fs.clone();
1872                cx.background_executor()
1873                    .spawn(async move { fs.git_clone(&repo, &path).await })
1874            }
1875            GitStoreState::Remote {
1876                upstream_client,
1877                upstream_project_id,
1878                ..
1879            } => {
1880                if upstream_client.is_via_collab() {
1881                    return Task::ready(Err(anyhow!(
1882                        "Git Clone isn't supported for project guests"
1883                    )));
1884                }
1885                let request = upstream_client.request(proto::GitClone {
1886                    project_id: *upstream_project_id,
1887                    abs_path: path.to_string_lossy().into_owned(),
1888                    remote_repo: repo,
1889                });
1890
1891                cx.background_spawn(async move {
1892                    let result = request.await?;
1893
1894                    match result.success {
1895                        true => Ok(()),
1896                        false => Err(anyhow!("Git Clone failed")),
1897                    }
1898                })
1899            }
1900        }
1901    }
1902
1903    async fn handle_update_repository(
1904        this: Entity<Self>,
1905        envelope: TypedEnvelope<proto::UpdateRepository>,
1906        mut cx: AsyncApp,
1907    ) -> Result<()> {
1908        this.update(&mut cx, |this, cx| {
1909            let path_style = this.worktree_store.read(cx).path_style();
1910            let mut update = envelope.payload;
1911
1912            let id = RepositoryId::from_proto(update.id);
1913            let client = this.upstream_client().context("no upstream client")?;
1914
1915            let original_repo_abs_path: Option<Arc<Path>> = update
1916                .original_repo_abs_path
1917                .as_deref()
1918                .map(|p| Path::new(p).into());
1919
1920            let mut repo_subscription = None;
1921            let repo = this.repositories.entry(id).or_insert_with(|| {
1922                let git_store = cx.weak_entity();
1923                let repo = cx.new(|cx| {
1924                    Repository::remote(
1925                        id,
1926                        Path::new(&update.abs_path).into(),
1927                        original_repo_abs_path.clone(),
1928                        path_style,
1929                        ProjectId(update.project_id),
1930                        client,
1931                        git_store,
1932                        cx,
1933                    )
1934                });
1935                repo_subscription = Some(cx.subscribe(&repo, Self::on_repository_event));
1936                cx.emit(GitStoreEvent::RepositoryAdded);
1937                repo
1938            });
1939            this._subscriptions.extend(repo_subscription);
1940
1941            repo.update(cx, {
1942                let update = update.clone();
1943                |repo, cx| repo.apply_remote_update(update, cx)
1944            })?;
1945
1946            this.active_repo_id.get_or_insert_with(|| {
1947                cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
1948                id
1949            });
1950
1951            if let Some((client, project_id)) = this.downstream_client() {
1952                update.project_id = project_id.to_proto();
1953                client.send(update).log_err();
1954            }
1955            Ok(())
1956        })
1957    }
1958
1959    async fn handle_remove_repository(
1960        this: Entity<Self>,
1961        envelope: TypedEnvelope<proto::RemoveRepository>,
1962        mut cx: AsyncApp,
1963    ) -> Result<()> {
1964        this.update(&mut cx, |this, cx| {
1965            let mut update = envelope.payload;
1966            let id = RepositoryId::from_proto(update.id);
1967            this.repositories.remove(&id);
1968            if let Some((client, project_id)) = this.downstream_client() {
1969                update.project_id = project_id.to_proto();
1970                client.send(update).log_err();
1971            }
1972            if this.active_repo_id == Some(id) {
1973                this.active_repo_id = None;
1974                cx.emit(GitStoreEvent::ActiveRepositoryChanged(None));
1975            }
1976            cx.emit(GitStoreEvent::RepositoryRemoved(id));
1977        });
1978        Ok(())
1979    }
1980
1981    async fn handle_git_init(
1982        this: Entity<Self>,
1983        envelope: TypedEnvelope<proto::GitInit>,
1984        cx: AsyncApp,
1985    ) -> Result<proto::Ack> {
1986        let path: Arc<Path> = PathBuf::from(envelope.payload.abs_path).into();
1987        let name = envelope.payload.fallback_branch_name;
1988        cx.update(|cx| this.read(cx).git_init(path, name, cx))
1989            .await?;
1990
1991        Ok(proto::Ack {})
1992    }
1993
1994    async fn handle_git_clone(
1995        this: Entity<Self>,
1996        envelope: TypedEnvelope<proto::GitClone>,
1997        cx: AsyncApp,
1998    ) -> Result<proto::GitCloneResponse> {
1999        let path: Arc<Path> = PathBuf::from(envelope.payload.abs_path).into();
2000        let repo_name = envelope.payload.remote_repo;
2001        let result = cx
2002            .update(|cx| this.read(cx).git_clone(repo_name, path, cx))
2003            .await;
2004
2005        Ok(proto::GitCloneResponse {
2006            success: result.is_ok(),
2007        })
2008    }
2009
2010    async fn handle_fetch(
2011        this: Entity<Self>,
2012        envelope: TypedEnvelope<proto::Fetch>,
2013        mut cx: AsyncApp,
2014    ) -> Result<proto::RemoteMessageResponse> {
2015        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2016        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2017        let fetch_options = FetchOptions::from_proto(envelope.payload.remote);
2018        let askpass_id = envelope.payload.askpass_id;
2019
2020        let askpass = make_remote_delegate(
2021            this,
2022            envelope.payload.project_id,
2023            repository_id,
2024            askpass_id,
2025            &mut cx,
2026        );
2027
2028        let remote_output = repository_handle
2029            .update(&mut cx, |repository_handle, cx| {
2030                repository_handle.fetch(fetch_options, askpass, cx)
2031            })
2032            .await??;
2033
2034        Ok(proto::RemoteMessageResponse {
2035            stdout: remote_output.stdout,
2036            stderr: remote_output.stderr,
2037        })
2038    }
2039
2040    async fn handle_push(
2041        this: Entity<Self>,
2042        envelope: TypedEnvelope<proto::Push>,
2043        mut cx: AsyncApp,
2044    ) -> Result<proto::RemoteMessageResponse> {
2045        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2046        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2047
2048        let askpass_id = envelope.payload.askpass_id;
2049        let askpass = make_remote_delegate(
2050            this,
2051            envelope.payload.project_id,
2052            repository_id,
2053            askpass_id,
2054            &mut cx,
2055        );
2056
2057        let options = envelope
2058            .payload
2059            .options
2060            .as_ref()
2061            .map(|_| match envelope.payload.options() {
2062                proto::push::PushOptions::SetUpstream => git::repository::PushOptions::SetUpstream,
2063                proto::push::PushOptions::Force => git::repository::PushOptions::Force,
2064            });
2065
2066        let branch_name = envelope.payload.branch_name.into();
2067        let remote_branch_name = envelope.payload.remote_branch_name.into();
2068        let remote_name = envelope.payload.remote_name.into();
2069
2070        let remote_output = repository_handle
2071            .update(&mut cx, |repository_handle, cx| {
2072                repository_handle.push(
2073                    branch_name,
2074                    remote_branch_name,
2075                    remote_name,
2076                    options,
2077                    askpass,
2078                    cx,
2079                )
2080            })
2081            .await??;
2082        Ok(proto::RemoteMessageResponse {
2083            stdout: remote_output.stdout,
2084            stderr: remote_output.stderr,
2085        })
2086    }
2087
2088    async fn handle_pull(
2089        this: Entity<Self>,
2090        envelope: TypedEnvelope<proto::Pull>,
2091        mut cx: AsyncApp,
2092    ) -> Result<proto::RemoteMessageResponse> {
2093        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2094        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2095        let askpass_id = envelope.payload.askpass_id;
2096        let askpass = make_remote_delegate(
2097            this,
2098            envelope.payload.project_id,
2099            repository_id,
2100            askpass_id,
2101            &mut cx,
2102        );
2103
2104        let branch_name = envelope.payload.branch_name.map(|name| name.into());
2105        let remote_name = envelope.payload.remote_name.into();
2106        let rebase = envelope.payload.rebase;
2107
2108        let remote_message = repository_handle
2109            .update(&mut cx, |repository_handle, cx| {
2110                repository_handle.pull(branch_name, remote_name, rebase, askpass, cx)
2111            })
2112            .await??;
2113
2114        Ok(proto::RemoteMessageResponse {
2115            stdout: remote_message.stdout,
2116            stderr: remote_message.stderr,
2117        })
2118    }
2119
2120    async fn handle_stage(
2121        this: Entity<Self>,
2122        envelope: TypedEnvelope<proto::Stage>,
2123        mut cx: AsyncApp,
2124    ) -> Result<proto::Ack> {
2125        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2126        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2127
2128        let entries = envelope
2129            .payload
2130            .paths
2131            .into_iter()
2132            .map(|path| RepoPath::new(&path))
2133            .collect::<Result<Vec<_>>>()?;
2134
2135        repository_handle
2136            .update(&mut cx, |repository_handle, cx| {
2137                repository_handle.stage_entries(entries, cx)
2138            })
2139            .await?;
2140        Ok(proto::Ack {})
2141    }
2142
2143    async fn handle_unstage(
2144        this: Entity<Self>,
2145        envelope: TypedEnvelope<proto::Unstage>,
2146        mut cx: AsyncApp,
2147    ) -> Result<proto::Ack> {
2148        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2149        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2150
2151        let entries = envelope
2152            .payload
2153            .paths
2154            .into_iter()
2155            .map(|path| RepoPath::new(&path))
2156            .collect::<Result<Vec<_>>>()?;
2157
2158        repository_handle
2159            .update(&mut cx, |repository_handle, cx| {
2160                repository_handle.unstage_entries(entries, cx)
2161            })
2162            .await?;
2163
2164        Ok(proto::Ack {})
2165    }
2166
2167    async fn handle_stash(
2168        this: Entity<Self>,
2169        envelope: TypedEnvelope<proto::Stash>,
2170        mut cx: AsyncApp,
2171    ) -> Result<proto::Ack> {
2172        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2173        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2174
2175        let entries = envelope
2176            .payload
2177            .paths
2178            .into_iter()
2179            .map(|path| RepoPath::new(&path))
2180            .collect::<Result<Vec<_>>>()?;
2181
2182        repository_handle
2183            .update(&mut cx, |repository_handle, cx| {
2184                repository_handle.stash_entries(entries, cx)
2185            })
2186            .await?;
2187
2188        Ok(proto::Ack {})
2189    }
2190
2191    async fn handle_stash_pop(
2192        this: Entity<Self>,
2193        envelope: TypedEnvelope<proto::StashPop>,
2194        mut cx: AsyncApp,
2195    ) -> Result<proto::Ack> {
2196        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2197        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2198        let stash_index = envelope.payload.stash_index.map(|i| i as usize);
2199
2200        repository_handle
2201            .update(&mut cx, |repository_handle, cx| {
2202                repository_handle.stash_pop(stash_index, cx)
2203            })
2204            .await?;
2205
2206        Ok(proto::Ack {})
2207    }
2208
2209    async fn handle_stash_apply(
2210        this: Entity<Self>,
2211        envelope: TypedEnvelope<proto::StashApply>,
2212        mut cx: AsyncApp,
2213    ) -> Result<proto::Ack> {
2214        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2215        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2216        let stash_index = envelope.payload.stash_index.map(|i| i as usize);
2217
2218        repository_handle
2219            .update(&mut cx, |repository_handle, cx| {
2220                repository_handle.stash_apply(stash_index, cx)
2221            })
2222            .await?;
2223
2224        Ok(proto::Ack {})
2225    }
2226
2227    async fn handle_stash_drop(
2228        this: Entity<Self>,
2229        envelope: TypedEnvelope<proto::StashDrop>,
2230        mut cx: AsyncApp,
2231    ) -> Result<proto::Ack> {
2232        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2233        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2234        let stash_index = envelope.payload.stash_index.map(|i| i as usize);
2235
2236        repository_handle
2237            .update(&mut cx, |repository_handle, cx| {
2238                repository_handle.stash_drop(stash_index, cx)
2239            })
2240            .await??;
2241
2242        Ok(proto::Ack {})
2243    }
2244
2245    async fn handle_set_index_text(
2246        this: Entity<Self>,
2247        envelope: TypedEnvelope<proto::SetIndexText>,
2248        mut cx: AsyncApp,
2249    ) -> Result<proto::Ack> {
2250        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2251        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2252        let repo_path = RepoPath::from_proto(&envelope.payload.path)?;
2253
2254        repository_handle
2255            .update(&mut cx, |repository_handle, cx| {
2256                repository_handle.spawn_set_index_text_job(
2257                    repo_path,
2258                    envelope.payload.text,
2259                    None,
2260                    cx,
2261                )
2262            })
2263            .await??;
2264        Ok(proto::Ack {})
2265    }
2266
2267    async fn handle_run_hook(
2268        this: Entity<Self>,
2269        envelope: TypedEnvelope<proto::RunGitHook>,
2270        mut cx: AsyncApp,
2271    ) -> Result<proto::Ack> {
2272        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2273        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2274        let hook = RunHook::from_proto(envelope.payload.hook).context("invalid hook")?;
2275        repository_handle
2276            .update(&mut cx, |repository_handle, cx| {
2277                repository_handle.run_hook(hook, cx)
2278            })
2279            .await??;
2280        Ok(proto::Ack {})
2281    }
2282
2283    async fn handle_commit(
2284        this: Entity<Self>,
2285        envelope: TypedEnvelope<proto::Commit>,
2286        mut cx: AsyncApp,
2287    ) -> Result<proto::Ack> {
2288        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2289        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2290        let askpass_id = envelope.payload.askpass_id;
2291
2292        let askpass = make_remote_delegate(
2293            this,
2294            envelope.payload.project_id,
2295            repository_id,
2296            askpass_id,
2297            &mut cx,
2298        );
2299
2300        let message = SharedString::from(envelope.payload.message);
2301        let name = envelope.payload.name.map(SharedString::from);
2302        let email = envelope.payload.email.map(SharedString::from);
2303        let options = envelope.payload.options.unwrap_or_default();
2304
2305        repository_handle
2306            .update(&mut cx, |repository_handle, cx| {
2307                repository_handle.commit(
2308                    message,
2309                    name.zip(email),
2310                    CommitOptions {
2311                        amend: options.amend,
2312                        signoff: options.signoff,
2313                    },
2314                    askpass,
2315                    cx,
2316                )
2317            })
2318            .await??;
2319        Ok(proto::Ack {})
2320    }
2321
2322    async fn handle_get_remotes(
2323        this: Entity<Self>,
2324        envelope: TypedEnvelope<proto::GetRemotes>,
2325        mut cx: AsyncApp,
2326    ) -> Result<proto::GetRemotesResponse> {
2327        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2328        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2329
2330        let branch_name = envelope.payload.branch_name;
2331        let is_push = envelope.payload.is_push;
2332
2333        let remotes = repository_handle
2334            .update(&mut cx, |repository_handle, _| {
2335                repository_handle.get_remotes(branch_name, is_push)
2336            })
2337            .await??;
2338
2339        Ok(proto::GetRemotesResponse {
2340            remotes: remotes
2341                .into_iter()
2342                .map(|remotes| proto::get_remotes_response::Remote {
2343                    name: remotes.name.to_string(),
2344                })
2345                .collect::<Vec<_>>(),
2346        })
2347    }
2348
2349    async fn handle_get_worktrees(
2350        this: Entity<Self>,
2351        envelope: TypedEnvelope<proto::GitGetWorktrees>,
2352        mut cx: AsyncApp,
2353    ) -> Result<proto::GitWorktreesResponse> {
2354        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2355        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2356
2357        let worktrees = repository_handle
2358            .update(&mut cx, |repository_handle, _| {
2359                repository_handle.worktrees()
2360            })
2361            .await??;
2362
2363        Ok(proto::GitWorktreesResponse {
2364            worktrees: worktrees
2365                .into_iter()
2366                .map(|worktree| worktree_to_proto(&worktree))
2367                .collect::<Vec<_>>(),
2368        })
2369    }
2370
2371    async fn handle_create_worktree(
2372        this: Entity<Self>,
2373        envelope: TypedEnvelope<proto::GitCreateWorktree>,
2374        mut cx: AsyncApp,
2375    ) -> Result<proto::Ack> {
2376        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2377        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2378        let directory = PathBuf::from(envelope.payload.directory);
2379        let name = envelope.payload.name;
2380        let commit = envelope.payload.commit;
2381
2382        repository_handle
2383            .update(&mut cx, |repository_handle, _| {
2384                repository_handle.create_worktree(name, directory, commit)
2385            })
2386            .await??;
2387
2388        Ok(proto::Ack {})
2389    }
2390
2391    async fn handle_remove_worktree(
2392        this: Entity<Self>,
2393        envelope: TypedEnvelope<proto::GitRemoveWorktree>,
2394        mut cx: AsyncApp,
2395    ) -> Result<proto::Ack> {
2396        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2397        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2398        let path = PathBuf::from(envelope.payload.path);
2399        let force = envelope.payload.force;
2400
2401        repository_handle
2402            .update(&mut cx, |repository_handle, _| {
2403                repository_handle.remove_worktree(path, force)
2404            })
2405            .await??;
2406
2407        Ok(proto::Ack {})
2408    }
2409
2410    async fn handle_rename_worktree(
2411        this: Entity<Self>,
2412        envelope: TypedEnvelope<proto::GitRenameWorktree>,
2413        mut cx: AsyncApp,
2414    ) -> Result<proto::Ack> {
2415        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2416        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2417        let old_path = PathBuf::from(envelope.payload.old_path);
2418        let new_path = PathBuf::from(envelope.payload.new_path);
2419
2420        repository_handle
2421            .update(&mut cx, |repository_handle, _| {
2422                repository_handle.rename_worktree(old_path, new_path)
2423            })
2424            .await??;
2425
2426        Ok(proto::Ack {})
2427    }
2428
2429    async fn handle_get_branches(
2430        this: Entity<Self>,
2431        envelope: TypedEnvelope<proto::GitGetBranches>,
2432        mut cx: AsyncApp,
2433    ) -> Result<proto::GitBranchesResponse> {
2434        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2435        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2436
2437        let branches = repository_handle
2438            .update(&mut cx, |repository_handle, _| repository_handle.branches())
2439            .await??;
2440
2441        Ok(proto::GitBranchesResponse {
2442            branches: branches
2443                .into_iter()
2444                .map(|branch| branch_to_proto(&branch))
2445                .collect::<Vec<_>>(),
2446        })
2447    }
2448    async fn handle_get_default_branch(
2449        this: Entity<Self>,
2450        envelope: TypedEnvelope<proto::GetDefaultBranch>,
2451        mut cx: AsyncApp,
2452    ) -> Result<proto::GetDefaultBranchResponse> {
2453        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2454        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2455
2456        let branch = repository_handle
2457            .update(&mut cx, |repository_handle, _| {
2458                repository_handle.default_branch(false)
2459            })
2460            .await??
2461            .map(Into::into);
2462
2463        Ok(proto::GetDefaultBranchResponse { branch })
2464    }
2465    async fn handle_create_branch(
2466        this: Entity<Self>,
2467        envelope: TypedEnvelope<proto::GitCreateBranch>,
2468        mut cx: AsyncApp,
2469    ) -> Result<proto::Ack> {
2470        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2471        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2472        let branch_name = envelope.payload.branch_name;
2473
2474        repository_handle
2475            .update(&mut cx, |repository_handle, _| {
2476                repository_handle.create_branch(branch_name, None)
2477            })
2478            .await??;
2479
2480        Ok(proto::Ack {})
2481    }
2482
2483    async fn handle_change_branch(
2484        this: Entity<Self>,
2485        envelope: TypedEnvelope<proto::GitChangeBranch>,
2486        mut cx: AsyncApp,
2487    ) -> Result<proto::Ack> {
2488        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2489        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2490        let branch_name = envelope.payload.branch_name;
2491
2492        repository_handle
2493            .update(&mut cx, |repository_handle, _| {
2494                repository_handle.change_branch(branch_name)
2495            })
2496            .await??;
2497
2498        Ok(proto::Ack {})
2499    }
2500
2501    async fn handle_rename_branch(
2502        this: Entity<Self>,
2503        envelope: TypedEnvelope<proto::GitRenameBranch>,
2504        mut cx: AsyncApp,
2505    ) -> Result<proto::Ack> {
2506        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2507        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2508        let branch = envelope.payload.branch;
2509        let new_name = envelope.payload.new_name;
2510
2511        repository_handle
2512            .update(&mut cx, |repository_handle, _| {
2513                repository_handle.rename_branch(branch, new_name)
2514            })
2515            .await??;
2516
2517        Ok(proto::Ack {})
2518    }
2519
2520    async fn handle_create_remote(
2521        this: Entity<Self>,
2522        envelope: TypedEnvelope<proto::GitCreateRemote>,
2523        mut cx: AsyncApp,
2524    ) -> Result<proto::Ack> {
2525        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2526        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2527        let remote_name = envelope.payload.remote_name;
2528        let remote_url = envelope.payload.remote_url;
2529
2530        repository_handle
2531            .update(&mut cx, |repository_handle, _| {
2532                repository_handle.create_remote(remote_name, remote_url)
2533            })
2534            .await??;
2535
2536        Ok(proto::Ack {})
2537    }
2538
2539    async fn handle_delete_branch(
2540        this: Entity<Self>,
2541        envelope: TypedEnvelope<proto::GitDeleteBranch>,
2542        mut cx: AsyncApp,
2543    ) -> Result<proto::Ack> {
2544        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2545        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2546        let is_remote = envelope.payload.is_remote;
2547        let branch_name = envelope.payload.branch_name;
2548
2549        repository_handle
2550            .update(&mut cx, |repository_handle, _| {
2551                repository_handle.delete_branch(is_remote, branch_name)
2552            })
2553            .await??;
2554
2555        Ok(proto::Ack {})
2556    }
2557
2558    async fn handle_remove_remote(
2559        this: Entity<Self>,
2560        envelope: TypedEnvelope<proto::GitRemoveRemote>,
2561        mut cx: AsyncApp,
2562    ) -> Result<proto::Ack> {
2563        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2564        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2565        let remote_name = envelope.payload.remote_name;
2566
2567        repository_handle
2568            .update(&mut cx, |repository_handle, _| {
2569                repository_handle.remove_remote(remote_name)
2570            })
2571            .await??;
2572
2573        Ok(proto::Ack {})
2574    }
2575
2576    async fn handle_show(
2577        this: Entity<Self>,
2578        envelope: TypedEnvelope<proto::GitShow>,
2579        mut cx: AsyncApp,
2580    ) -> Result<proto::GitCommitDetails> {
2581        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2582        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2583
2584        let commit = repository_handle
2585            .update(&mut cx, |repository_handle, _| {
2586                repository_handle.show(envelope.payload.commit)
2587            })
2588            .await??;
2589        Ok(proto::GitCommitDetails {
2590            sha: commit.sha.into(),
2591            message: commit.message.into(),
2592            commit_timestamp: commit.commit_timestamp,
2593            author_email: commit.author_email.into(),
2594            author_name: commit.author_name.into(),
2595        })
2596    }
2597
2598    async fn handle_load_commit_diff(
2599        this: Entity<Self>,
2600        envelope: TypedEnvelope<proto::LoadCommitDiff>,
2601        mut cx: AsyncApp,
2602    ) -> Result<proto::LoadCommitDiffResponse> {
2603        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2604        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2605
2606        let commit_diff = repository_handle
2607            .update(&mut cx, |repository_handle, _| {
2608                repository_handle.load_commit_diff(envelope.payload.commit)
2609            })
2610            .await??;
2611        Ok(proto::LoadCommitDiffResponse {
2612            files: commit_diff
2613                .files
2614                .into_iter()
2615                .map(|file| proto::CommitFile {
2616                    path: file.path.to_proto(),
2617                    old_text: file.old_text,
2618                    new_text: file.new_text,
2619                    is_binary: file.is_binary,
2620                })
2621                .collect(),
2622        })
2623    }
2624
2625    async fn handle_file_history(
2626        this: Entity<Self>,
2627        envelope: TypedEnvelope<proto::GitFileHistory>,
2628        mut cx: AsyncApp,
2629    ) -> Result<proto::GitFileHistoryResponse> {
2630        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2631        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2632        let path = RepoPath::from_proto(&envelope.payload.path)?;
2633        let skip = envelope.payload.skip as usize;
2634        let limit = envelope.payload.limit.map(|l| l as usize);
2635
2636        let file_history = repository_handle
2637            .update(&mut cx, |repository_handle, _| {
2638                repository_handle.file_history_paginated(path, skip, limit)
2639            })
2640            .await??;
2641
2642        Ok(proto::GitFileHistoryResponse {
2643            entries: file_history
2644                .entries
2645                .into_iter()
2646                .map(|entry| proto::FileHistoryEntry {
2647                    sha: entry.sha.to_string(),
2648                    subject: entry.subject.to_string(),
2649                    message: entry.message.to_string(),
2650                    commit_timestamp: entry.commit_timestamp,
2651                    author_name: entry.author_name.to_string(),
2652                    author_email: entry.author_email.to_string(),
2653                })
2654                .collect(),
2655            path: file_history.path.to_proto(),
2656        })
2657    }
2658
2659    async fn handle_reset(
2660        this: Entity<Self>,
2661        envelope: TypedEnvelope<proto::GitReset>,
2662        mut cx: AsyncApp,
2663    ) -> Result<proto::Ack> {
2664        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2665        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2666
2667        let mode = match envelope.payload.mode() {
2668            git_reset::ResetMode::Soft => ResetMode::Soft,
2669            git_reset::ResetMode::Mixed => ResetMode::Mixed,
2670        };
2671
2672        repository_handle
2673            .update(&mut cx, |repository_handle, cx| {
2674                repository_handle.reset(envelope.payload.commit, mode, cx)
2675            })
2676            .await??;
2677        Ok(proto::Ack {})
2678    }
2679
2680    async fn handle_checkout_files(
2681        this: Entity<Self>,
2682        envelope: TypedEnvelope<proto::GitCheckoutFiles>,
2683        mut cx: AsyncApp,
2684    ) -> Result<proto::Ack> {
2685        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2686        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2687        let paths = envelope
2688            .payload
2689            .paths
2690            .iter()
2691            .map(|s| RepoPath::from_proto(s))
2692            .collect::<Result<Vec<_>>>()?;
2693
2694        repository_handle
2695            .update(&mut cx, |repository_handle, cx| {
2696                repository_handle.checkout_files(&envelope.payload.commit, paths, cx)
2697            })
2698            .await?;
2699        Ok(proto::Ack {})
2700    }
2701
2702    async fn handle_open_commit_message_buffer(
2703        this: Entity<Self>,
2704        envelope: TypedEnvelope<proto::OpenCommitMessageBuffer>,
2705        mut cx: AsyncApp,
2706    ) -> Result<proto::OpenBufferResponse> {
2707        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2708        let repository = Self::repository_for_request(&this, repository_id, &mut cx)?;
2709        let buffer = repository
2710            .update(&mut cx, |repository, cx| {
2711                repository.open_commit_buffer(None, this.read(cx).buffer_store.clone(), cx)
2712            })
2713            .await?;
2714
2715        let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
2716        this.update(&mut cx, |this, cx| {
2717            this.buffer_store.update(cx, |buffer_store, cx| {
2718                buffer_store
2719                    .create_buffer_for_peer(
2720                        &buffer,
2721                        envelope.original_sender_id.unwrap_or(envelope.sender_id),
2722                        cx,
2723                    )
2724                    .detach_and_log_err(cx);
2725            })
2726        });
2727
2728        Ok(proto::OpenBufferResponse {
2729            buffer_id: buffer_id.to_proto(),
2730        })
2731    }
2732
2733    async fn handle_askpass(
2734        this: Entity<Self>,
2735        envelope: TypedEnvelope<proto::AskPassRequest>,
2736        mut cx: AsyncApp,
2737    ) -> Result<proto::AskPassResponse> {
2738        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2739        let repository = Self::repository_for_request(&this, repository_id, &mut cx)?;
2740
2741        let delegates = cx.update(|cx| repository.read(cx).askpass_delegates.clone());
2742        let Some(mut askpass) = delegates.lock().remove(&envelope.payload.askpass_id) else {
2743            debug_panic!("no askpass found");
2744            anyhow::bail!("no askpass found");
2745        };
2746
2747        let response = askpass
2748            .ask_password(envelope.payload.prompt)
2749            .await
2750            .ok_or_else(|| anyhow::anyhow!("askpass cancelled"))?;
2751
2752        delegates
2753            .lock()
2754            .insert(envelope.payload.askpass_id, askpass);
2755
2756        // In fact, we don't quite know what we're doing here, as we're sending askpass password unencrypted, but..
2757        Ok(proto::AskPassResponse {
2758            response: response.decrypt(IKnowWhatIAmDoingAndIHaveReadTheDocs)?,
2759        })
2760    }
2761
2762    async fn handle_check_for_pushed_commits(
2763        this: Entity<Self>,
2764        envelope: TypedEnvelope<proto::CheckForPushedCommits>,
2765        mut cx: AsyncApp,
2766    ) -> Result<proto::CheckForPushedCommitsResponse> {
2767        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2768        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2769
2770        let branches = repository_handle
2771            .update(&mut cx, |repository_handle, _| {
2772                repository_handle.check_for_pushed_commits()
2773            })
2774            .await??;
2775        Ok(proto::CheckForPushedCommitsResponse {
2776            pushed_to: branches
2777                .into_iter()
2778                .map(|commit| commit.to_string())
2779                .collect(),
2780        })
2781    }
2782
2783    async fn handle_git_diff(
2784        this: Entity<Self>,
2785        envelope: TypedEnvelope<proto::GitDiff>,
2786        mut cx: AsyncApp,
2787    ) -> Result<proto::GitDiffResponse> {
2788        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2789        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2790        let diff_type = match envelope.payload.diff_type() {
2791            proto::git_diff::DiffType::HeadToIndex => DiffType::HeadToIndex,
2792            proto::git_diff::DiffType::HeadToWorktree => DiffType::HeadToWorktree,
2793            proto::git_diff::DiffType::MergeBase => {
2794                let base_ref = envelope
2795                    .payload
2796                    .merge_base_ref
2797                    .ok_or_else(|| anyhow!("merge_base_ref is required for MergeBase diff type"))?;
2798                DiffType::MergeBase {
2799                    base_ref: base_ref.into(),
2800                }
2801            }
2802        };
2803
2804        let mut diff = repository_handle
2805            .update(&mut cx, |repository_handle, cx| {
2806                repository_handle.diff(diff_type, cx)
2807            })
2808            .await??;
2809        const ONE_MB: usize = 1_000_000;
2810        if diff.len() > ONE_MB {
2811            diff = diff.chars().take(ONE_MB).collect()
2812        }
2813
2814        Ok(proto::GitDiffResponse { diff })
2815    }
2816
2817    async fn handle_tree_diff(
2818        this: Entity<Self>,
2819        request: TypedEnvelope<proto::GetTreeDiff>,
2820        mut cx: AsyncApp,
2821    ) -> Result<proto::GetTreeDiffResponse> {
2822        let repository_id = RepositoryId(request.payload.repository_id);
2823        let diff_type = if request.payload.is_merge {
2824            DiffTreeType::MergeBase {
2825                base: request.payload.base.into(),
2826                head: request.payload.head.into(),
2827            }
2828        } else {
2829            DiffTreeType::Since {
2830                base: request.payload.base.into(),
2831                head: request.payload.head.into(),
2832            }
2833        };
2834
2835        let diff = this
2836            .update(&mut cx, |this, cx| {
2837                let repository = this.repositories().get(&repository_id)?;
2838                Some(repository.update(cx, |repo, cx| repo.diff_tree(diff_type, cx)))
2839            })
2840            .context("missing repository")?
2841            .await??;
2842
2843        Ok(proto::GetTreeDiffResponse {
2844            entries: diff
2845                .entries
2846                .into_iter()
2847                .map(|(path, status)| proto::TreeDiffStatus {
2848                    path: path.as_ref().to_proto(),
2849                    status: match status {
2850                        TreeDiffStatus::Added {} => proto::tree_diff_status::Status::Added.into(),
2851                        TreeDiffStatus::Modified { .. } => {
2852                            proto::tree_diff_status::Status::Modified.into()
2853                        }
2854                        TreeDiffStatus::Deleted { .. } => {
2855                            proto::tree_diff_status::Status::Deleted.into()
2856                        }
2857                    },
2858                    oid: match status {
2859                        TreeDiffStatus::Deleted { old } | TreeDiffStatus::Modified { old } => {
2860                            Some(old.to_string())
2861                        }
2862                        TreeDiffStatus::Added => None,
2863                    },
2864                })
2865                .collect(),
2866        })
2867    }
2868
2869    async fn handle_get_blob_content(
2870        this: Entity<Self>,
2871        request: TypedEnvelope<proto::GetBlobContent>,
2872        mut cx: AsyncApp,
2873    ) -> Result<proto::GetBlobContentResponse> {
2874        let oid = git::Oid::from_str(&request.payload.oid)?;
2875        let repository_id = RepositoryId(request.payload.repository_id);
2876        let content = this
2877            .update(&mut cx, |this, cx| {
2878                let repository = this.repositories().get(&repository_id)?;
2879                Some(repository.update(cx, |repo, cx| repo.load_blob_content(oid, cx)))
2880            })
2881            .context("missing repository")?
2882            .await?;
2883        Ok(proto::GetBlobContentResponse { content })
2884    }
2885
2886    async fn handle_open_unstaged_diff(
2887        this: Entity<Self>,
2888        request: TypedEnvelope<proto::OpenUnstagedDiff>,
2889        mut cx: AsyncApp,
2890    ) -> Result<proto::OpenUnstagedDiffResponse> {
2891        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2892        let diff = this
2893            .update(&mut cx, |this, cx| {
2894                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2895                Some(this.open_unstaged_diff(buffer, cx))
2896            })
2897            .context("missing buffer")?
2898            .await?;
2899        this.update(&mut cx, |this, _| {
2900            let shared_diffs = this
2901                .shared_diffs
2902                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2903                .or_default();
2904            shared_diffs.entry(buffer_id).or_default().unstaged = Some(diff.clone());
2905        });
2906        let staged_text = diff.read_with(&cx, |diff, cx| diff.base_text_string(cx));
2907        Ok(proto::OpenUnstagedDiffResponse { staged_text })
2908    }
2909
2910    async fn handle_open_uncommitted_diff(
2911        this: Entity<Self>,
2912        request: TypedEnvelope<proto::OpenUncommittedDiff>,
2913        mut cx: AsyncApp,
2914    ) -> Result<proto::OpenUncommittedDiffResponse> {
2915        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2916        let diff = this
2917            .update(&mut cx, |this, cx| {
2918                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2919                Some(this.open_uncommitted_diff(buffer, cx))
2920            })
2921            .context("missing buffer")?
2922            .await?;
2923        this.update(&mut cx, |this, _| {
2924            let shared_diffs = this
2925                .shared_diffs
2926                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2927                .or_default();
2928            shared_diffs.entry(buffer_id).or_default().uncommitted = Some(diff.clone());
2929        });
2930        Ok(diff.read_with(&cx, |diff, cx| {
2931            use proto::open_uncommitted_diff_response::Mode;
2932
2933            let unstaged_diff = diff.secondary_diff();
2934            let index_snapshot = unstaged_diff.and_then(|diff| {
2935                let diff = diff.read(cx);
2936                diff.base_text_exists().then(|| diff.base_text(cx))
2937            });
2938
2939            let mode;
2940            let staged_text;
2941            let committed_text;
2942            if diff.base_text_exists() {
2943                let committed_snapshot = diff.base_text(cx);
2944                committed_text = Some(committed_snapshot.text());
2945                if let Some(index_text) = index_snapshot {
2946                    if index_text.remote_id() == committed_snapshot.remote_id() {
2947                        mode = Mode::IndexMatchesHead;
2948                        staged_text = None;
2949                    } else {
2950                        mode = Mode::IndexAndHead;
2951                        staged_text = Some(index_text.text());
2952                    }
2953                } else {
2954                    mode = Mode::IndexAndHead;
2955                    staged_text = None;
2956                }
2957            } else {
2958                mode = Mode::IndexAndHead;
2959                committed_text = None;
2960                staged_text = index_snapshot.as_ref().map(|buffer| buffer.text());
2961            }
2962
2963            proto::OpenUncommittedDiffResponse {
2964                committed_text,
2965                staged_text,
2966                mode: mode.into(),
2967            }
2968        }))
2969    }
2970
2971    async fn handle_update_diff_bases(
2972        this: Entity<Self>,
2973        request: TypedEnvelope<proto::UpdateDiffBases>,
2974        mut cx: AsyncApp,
2975    ) -> Result<()> {
2976        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2977        this.update(&mut cx, |this, cx| {
2978            if let Some(diff_state) = this.diffs.get_mut(&buffer_id)
2979                && let Some(buffer) = this.buffer_store.read(cx).get(buffer_id)
2980            {
2981                let buffer = buffer.read(cx).text_snapshot();
2982                diff_state.update(cx, |diff_state, cx| {
2983                    diff_state.handle_base_texts_updated(buffer, request.payload, cx);
2984                })
2985            }
2986        });
2987        Ok(())
2988    }
2989
2990    async fn handle_blame_buffer(
2991        this: Entity<Self>,
2992        envelope: TypedEnvelope<proto::BlameBuffer>,
2993        mut cx: AsyncApp,
2994    ) -> Result<proto::BlameBufferResponse> {
2995        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
2996        let version = deserialize_version(&envelope.payload.version);
2997        let buffer = this.read_with(&cx, |this, cx| {
2998            this.buffer_store.read(cx).get_existing(buffer_id)
2999        })?;
3000        buffer
3001            .update(&mut cx, |buffer, _| {
3002                buffer.wait_for_version(version.clone())
3003            })
3004            .await?;
3005        let blame = this
3006            .update(&mut cx, |this, cx| {
3007                this.blame_buffer(&buffer, Some(version), cx)
3008            })
3009            .await?;
3010        Ok(serialize_blame_buffer_response(blame))
3011    }
3012
3013    async fn handle_get_permalink_to_line(
3014        this: Entity<Self>,
3015        envelope: TypedEnvelope<proto::GetPermalinkToLine>,
3016        mut cx: AsyncApp,
3017    ) -> Result<proto::GetPermalinkToLineResponse> {
3018        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
3019        // let version = deserialize_version(&envelope.payload.version);
3020        let selection = {
3021            let proto_selection = envelope
3022                .payload
3023                .selection
3024                .context("no selection to get permalink for defined")?;
3025            proto_selection.start as u32..proto_selection.end as u32
3026        };
3027        let buffer = this.read_with(&cx, |this, cx| {
3028            this.buffer_store.read(cx).get_existing(buffer_id)
3029        })?;
3030        let permalink = this
3031            .update(&mut cx, |this, cx| {
3032                this.get_permalink_to_line(&buffer, selection, cx)
3033            })
3034            .await?;
3035        Ok(proto::GetPermalinkToLineResponse {
3036            permalink: permalink.to_string(),
3037        })
3038    }
3039
3040    fn repository_for_request(
3041        this: &Entity<Self>,
3042        id: RepositoryId,
3043        cx: &mut AsyncApp,
3044    ) -> Result<Entity<Repository>> {
3045        this.read_with(cx, |this, _| {
3046            this.repositories
3047                .get(&id)
3048                .context("missing repository handle")
3049                .cloned()
3050        })
3051    }
3052
3053    pub fn repo_snapshots(&self, cx: &App) -> HashMap<RepositoryId, RepositorySnapshot> {
3054        self.repositories
3055            .iter()
3056            .map(|(id, repo)| (*id, repo.read(cx).snapshot.clone()))
3057            .collect()
3058    }
3059
3060    fn process_updated_entries(
3061        &self,
3062        worktree: &Entity<Worktree>,
3063        updated_entries: &[(Arc<RelPath>, ProjectEntryId, PathChange)],
3064        cx: &mut App,
3065    ) -> Task<HashMap<Entity<Repository>, Vec<RepoPath>>> {
3066        let path_style = worktree.read(cx).path_style();
3067        let mut repo_paths = self
3068            .repositories
3069            .values()
3070            .map(|repo| (repo.read(cx).work_directory_abs_path.clone(), repo.clone()))
3071            .collect::<Vec<_>>();
3072        let mut entries: Vec<_> = updated_entries
3073            .iter()
3074            .map(|(path, _, _)| path.clone())
3075            .collect();
3076        entries.sort();
3077        let worktree = worktree.read(cx);
3078
3079        let entries = entries
3080            .into_iter()
3081            .map(|path| worktree.absolutize(&path))
3082            .collect::<Arc<[_]>>();
3083
3084        let executor = cx.background_executor().clone();
3085        cx.background_executor().spawn(async move {
3086            repo_paths.sort_by(|lhs, rhs| lhs.0.cmp(&rhs.0));
3087            let mut paths_by_git_repo = HashMap::<_, Vec<_>>::default();
3088            let mut tasks = FuturesOrdered::new();
3089            for (repo_path, repo) in repo_paths.into_iter().rev() {
3090                let entries = entries.clone();
3091                let task = executor.spawn(async move {
3092                    // Find all repository paths that belong to this repo
3093                    let mut ix = entries.partition_point(|path| path < &*repo_path);
3094                    if ix == entries.len() {
3095                        return None;
3096                    };
3097
3098                    let mut paths = Vec::new();
3099                    // All paths prefixed by a given repo will constitute a continuous range.
3100                    while let Some(path) = entries.get(ix)
3101                        && let Some(repo_path) = RepositorySnapshot::abs_path_to_repo_path_inner(
3102                            &repo_path, path, path_style,
3103                        )
3104                    {
3105                        paths.push((repo_path, ix));
3106                        ix += 1;
3107                    }
3108                    if paths.is_empty() {
3109                        None
3110                    } else {
3111                        Some((repo, paths))
3112                    }
3113                });
3114                tasks.push_back(task);
3115            }
3116
3117            // Now, let's filter out the "duplicate" entries that were processed by multiple distinct repos.
3118            let mut path_was_used = vec![false; entries.len()];
3119            let tasks = tasks.collect::<Vec<_>>().await;
3120            // Process tasks from the back: iterating backwards allows us to see more-specific paths first.
3121            // We always want to assign a path to it's innermost repository.
3122            for t in tasks {
3123                let Some((repo, paths)) = t else {
3124                    continue;
3125                };
3126                let entry = paths_by_git_repo.entry(repo).or_default();
3127                for (repo_path, ix) in paths {
3128                    if path_was_used[ix] {
3129                        continue;
3130                    }
3131                    path_was_used[ix] = true;
3132                    entry.push(repo_path);
3133                }
3134            }
3135
3136            paths_by_git_repo
3137        })
3138    }
3139}
3140
3141impl BufferGitState {
3142    fn new(_git_store: WeakEntity<GitStore>) -> Self {
3143        Self {
3144            unstaged_diff: Default::default(),
3145            uncommitted_diff: Default::default(),
3146            oid_diffs: Default::default(),
3147            recalculate_diff_task: Default::default(),
3148            language: Default::default(),
3149            language_registry: Default::default(),
3150            recalculating_tx: postage::watch::channel_with(false).0,
3151            hunk_staging_operation_count: 0,
3152            hunk_staging_operation_count_as_of_write: 0,
3153            head_text: Default::default(),
3154            index_text: Default::default(),
3155            oid_texts: Default::default(),
3156            head_changed: Default::default(),
3157            index_changed: Default::default(),
3158            language_changed: Default::default(),
3159            conflict_updated_futures: Default::default(),
3160            conflict_set: Default::default(),
3161            reparse_conflict_markers_task: Default::default(),
3162        }
3163    }
3164
3165    #[ztracing::instrument(skip_all)]
3166    fn buffer_language_changed(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
3167        self.language = buffer.read(cx).language().cloned();
3168        self.language_changed = true;
3169        let _ = self.recalculate_diffs(buffer.read(cx).text_snapshot(), cx);
3170    }
3171
3172    fn reparse_conflict_markers(
3173        &mut self,
3174        buffer: text::BufferSnapshot,
3175        cx: &mut Context<Self>,
3176    ) -> oneshot::Receiver<()> {
3177        let (tx, rx) = oneshot::channel();
3178
3179        let Some(conflict_set) = self
3180            .conflict_set
3181            .as_ref()
3182            .and_then(|conflict_set| conflict_set.upgrade())
3183        else {
3184            return rx;
3185        };
3186
3187        let old_snapshot = conflict_set.read_with(cx, |conflict_set, _| {
3188            if conflict_set.has_conflict {
3189                Some(conflict_set.snapshot())
3190            } else {
3191                None
3192            }
3193        });
3194
3195        if let Some(old_snapshot) = old_snapshot {
3196            self.conflict_updated_futures.push(tx);
3197            self.reparse_conflict_markers_task = Some(cx.spawn(async move |this, cx| {
3198                let (snapshot, changed_range) = cx
3199                    .background_spawn(async move {
3200                        let new_snapshot = ConflictSet::parse(&buffer);
3201                        let changed_range = old_snapshot.compare(&new_snapshot, &buffer);
3202                        (new_snapshot, changed_range)
3203                    })
3204                    .await;
3205                this.update(cx, |this, cx| {
3206                    if let Some(conflict_set) = &this.conflict_set {
3207                        conflict_set
3208                            .update(cx, |conflict_set, cx| {
3209                                conflict_set.set_snapshot(snapshot, changed_range, cx);
3210                            })
3211                            .ok();
3212                    }
3213                    let futures = std::mem::take(&mut this.conflict_updated_futures);
3214                    for tx in futures {
3215                        tx.send(()).ok();
3216                    }
3217                })
3218            }))
3219        }
3220
3221        rx
3222    }
3223
3224    fn unstaged_diff(&self) -> Option<Entity<BufferDiff>> {
3225        self.unstaged_diff.as_ref().and_then(|set| set.upgrade())
3226    }
3227
3228    fn uncommitted_diff(&self) -> Option<Entity<BufferDiff>> {
3229        self.uncommitted_diff.as_ref().and_then(|set| set.upgrade())
3230    }
3231
3232    fn oid_diff(&self, oid: Option<git::Oid>) -> Option<Entity<BufferDiff>> {
3233        self.oid_diffs.get(&oid).and_then(|weak| weak.upgrade())
3234    }
3235
3236    fn handle_base_texts_updated(
3237        &mut self,
3238        buffer: text::BufferSnapshot,
3239        message: proto::UpdateDiffBases,
3240        cx: &mut Context<Self>,
3241    ) {
3242        use proto::update_diff_bases::Mode;
3243
3244        let Some(mode) = Mode::from_i32(message.mode) else {
3245            return;
3246        };
3247
3248        let diff_bases_change = match mode {
3249            Mode::HeadOnly => DiffBasesChange::SetHead(message.committed_text),
3250            Mode::IndexOnly => DiffBasesChange::SetIndex(message.staged_text),
3251            Mode::IndexMatchesHead => DiffBasesChange::SetBoth(message.committed_text),
3252            Mode::IndexAndHead => DiffBasesChange::SetEach {
3253                index: message.staged_text,
3254                head: message.committed_text,
3255            },
3256        };
3257
3258        self.diff_bases_changed(buffer, Some(diff_bases_change), cx);
3259    }
3260
3261    pub fn wait_for_recalculation(&mut self) -> Option<impl Future<Output = ()> + use<>> {
3262        if *self.recalculating_tx.borrow() {
3263            let mut rx = self.recalculating_tx.subscribe();
3264            Some(async move {
3265                loop {
3266                    let is_recalculating = rx.recv().await;
3267                    if is_recalculating != Some(true) {
3268                        break;
3269                    }
3270                }
3271            })
3272        } else {
3273            None
3274        }
3275    }
3276
3277    fn diff_bases_changed(
3278        &mut self,
3279        buffer: text::BufferSnapshot,
3280        diff_bases_change: Option<DiffBasesChange>,
3281        cx: &mut Context<Self>,
3282    ) {
3283        match diff_bases_change {
3284            Some(DiffBasesChange::SetIndex(index)) => {
3285                self.index_text = index.map(|mut index| {
3286                    text::LineEnding::normalize(&mut index);
3287                    Arc::from(index.as_str())
3288                });
3289                self.index_changed = true;
3290            }
3291            Some(DiffBasesChange::SetHead(head)) => {
3292                self.head_text = head.map(|mut head| {
3293                    text::LineEnding::normalize(&mut head);
3294                    Arc::from(head.as_str())
3295                });
3296                self.head_changed = true;
3297            }
3298            Some(DiffBasesChange::SetBoth(text)) => {
3299                let text = text.map(|mut text| {
3300                    text::LineEnding::normalize(&mut text);
3301                    Arc::from(text.as_str())
3302                });
3303                self.head_text = text.clone();
3304                self.index_text = text;
3305                self.head_changed = true;
3306                self.index_changed = true;
3307            }
3308            Some(DiffBasesChange::SetEach { index, head }) => {
3309                self.index_text = index.map(|mut index| {
3310                    text::LineEnding::normalize(&mut index);
3311                    Arc::from(index.as_str())
3312                });
3313                self.index_changed = true;
3314                self.head_text = head.map(|mut head| {
3315                    text::LineEnding::normalize(&mut head);
3316                    Arc::from(head.as_str())
3317                });
3318                self.head_changed = true;
3319            }
3320            None => {}
3321        }
3322
3323        self.recalculate_diffs(buffer, cx)
3324    }
3325
3326    #[ztracing::instrument(skip_all)]
3327    fn recalculate_diffs(&mut self, buffer: text::BufferSnapshot, cx: &mut Context<Self>) {
3328        *self.recalculating_tx.borrow_mut() = true;
3329
3330        let language = self.language.clone();
3331        let language_registry = self.language_registry.clone();
3332        let unstaged_diff = self.unstaged_diff();
3333        let uncommitted_diff = self.uncommitted_diff();
3334        let head = self.head_text.clone();
3335        let index = self.index_text.clone();
3336        let index_changed = self.index_changed;
3337        let head_changed = self.head_changed;
3338        let language_changed = self.language_changed;
3339        let prev_hunk_staging_operation_count = self.hunk_staging_operation_count_as_of_write;
3340        let index_matches_head = match (self.index_text.as_ref(), self.head_text.as_ref()) {
3341            (Some(index), Some(head)) => Arc::ptr_eq(index, head),
3342            (None, None) => true,
3343            _ => false,
3344        };
3345
3346        let oid_diffs: Vec<(Option<git::Oid>, Entity<BufferDiff>, Option<Arc<str>>)> = self
3347            .oid_diffs
3348            .iter()
3349            .filter_map(|(oid, weak)| {
3350                let base_text = oid.and_then(|oid| self.oid_texts.get(&oid).cloned());
3351                weak.upgrade().map(|diff| (*oid, diff, base_text))
3352            })
3353            .collect();
3354
3355        self.oid_diffs.retain(|oid, weak| {
3356            let alive = weak.upgrade().is_some();
3357            if !alive {
3358                if let Some(oid) = oid {
3359                    self.oid_texts.remove(oid);
3360                }
3361            }
3362            alive
3363        });
3364        self.recalculate_diff_task = Some(cx.spawn(async move |this, cx| {
3365            log::debug!(
3366                "start recalculating diffs for buffer {}",
3367                buffer.remote_id()
3368            );
3369
3370            let mut new_unstaged_diff = None;
3371            if let Some(unstaged_diff) = &unstaged_diff {
3372                new_unstaged_diff = Some(
3373                    cx.update(|cx| {
3374                        unstaged_diff.read(cx).update_diff(
3375                            buffer.clone(),
3376                            index,
3377                            index_changed.then_some(false),
3378                            language.clone(),
3379                            cx,
3380                        )
3381                    })
3382                    .await,
3383                );
3384            }
3385
3386            // Dropping BufferDiff can be expensive, so yield back to the event loop
3387            // for a bit
3388            yield_now().await;
3389
3390            let mut new_uncommitted_diff = None;
3391            if let Some(uncommitted_diff) = &uncommitted_diff {
3392                new_uncommitted_diff = if index_matches_head {
3393                    new_unstaged_diff.clone()
3394                } else {
3395                    Some(
3396                        cx.update(|cx| {
3397                            uncommitted_diff.read(cx).update_diff(
3398                                buffer.clone(),
3399                                head,
3400                                head_changed.then_some(true),
3401                                language.clone(),
3402                                cx,
3403                            )
3404                        })
3405                        .await,
3406                    )
3407                }
3408            }
3409
3410            // Dropping BufferDiff can be expensive, so yield back to the event loop
3411            // for a bit
3412            yield_now().await;
3413
3414            let cancel = this.update(cx, |this, _| {
3415                // This checks whether all pending stage/unstage operations
3416                // have quiesced (i.e. both the corresponding write and the
3417                // read of that write have completed). If not, then we cancel
3418                // this recalculation attempt to avoid invalidating pending
3419                // state too quickly; another recalculation will come along
3420                // later and clear the pending state once the state of the index has settled.
3421                if this.hunk_staging_operation_count > prev_hunk_staging_operation_count {
3422                    *this.recalculating_tx.borrow_mut() = false;
3423                    true
3424                } else {
3425                    false
3426                }
3427            })?;
3428            if cancel {
3429                log::debug!(
3430                    concat!(
3431                        "aborting recalculating diffs for buffer {}",
3432                        "due to subsequent hunk operations",
3433                    ),
3434                    buffer.remote_id()
3435                );
3436                return Ok(());
3437            }
3438
3439            let unstaged_changed_range = if let Some((unstaged_diff, new_unstaged_diff)) =
3440                unstaged_diff.as_ref().zip(new_unstaged_diff.clone())
3441            {
3442                let task = unstaged_diff.update(cx, |diff, cx| {
3443                    // For git index buffer we skip assigning the language as we do not really need to perform any syntax highlighting on
3444                    // it. As a result, by skipping it we are potentially shaving off a lot of RSS plus we get a snappier feel for large diff
3445                    // view multibuffers.
3446                    diff.set_snapshot(new_unstaged_diff, &buffer, cx)
3447                });
3448                Some(task.await)
3449            } else {
3450                None
3451            };
3452
3453            yield_now().await;
3454
3455            if let Some((uncommitted_diff, new_uncommitted_diff)) =
3456                uncommitted_diff.as_ref().zip(new_uncommitted_diff.clone())
3457            {
3458                uncommitted_diff
3459                    .update(cx, |diff, cx| {
3460                        if language_changed {
3461                            diff.language_changed(language.clone(), language_registry, cx);
3462                        }
3463                        diff.set_snapshot_with_secondary(
3464                            new_uncommitted_diff,
3465                            &buffer,
3466                            unstaged_changed_range.flatten(),
3467                            true,
3468                            cx,
3469                        )
3470                    })
3471                    .await;
3472            }
3473
3474            yield_now().await;
3475
3476            for (oid, oid_diff, base_text) in oid_diffs {
3477                let new_oid_diff = cx
3478                    .update(|cx| {
3479                        oid_diff.read(cx).update_diff(
3480                            buffer.clone(),
3481                            base_text,
3482                            None,
3483                            language.clone(),
3484                            cx,
3485                        )
3486                    })
3487                    .await;
3488
3489                oid_diff
3490                    .update(cx, |diff, cx| diff.set_snapshot(new_oid_diff, &buffer, cx))
3491                    .await;
3492
3493                log::debug!(
3494                    "finished recalculating oid diff for buffer {} oid {:?}",
3495                    buffer.remote_id(),
3496                    oid
3497                );
3498
3499                yield_now().await;
3500            }
3501
3502            log::debug!(
3503                "finished recalculating diffs for buffer {}",
3504                buffer.remote_id()
3505            );
3506
3507            if let Some(this) = this.upgrade() {
3508                this.update(cx, |this, _| {
3509                    this.index_changed = false;
3510                    this.head_changed = false;
3511                    this.language_changed = false;
3512                    *this.recalculating_tx.borrow_mut() = false;
3513                });
3514            }
3515
3516            Ok(())
3517        }));
3518    }
3519}
3520
3521fn make_remote_delegate(
3522    this: Entity<GitStore>,
3523    project_id: u64,
3524    repository_id: RepositoryId,
3525    askpass_id: u64,
3526    cx: &mut AsyncApp,
3527) -> AskPassDelegate {
3528    AskPassDelegate::new(cx, move |prompt, tx, cx| {
3529        this.update(cx, |this, cx| {
3530            let Some((client, _)) = this.downstream_client() else {
3531                return;
3532            };
3533            let response = client.request(proto::AskPassRequest {
3534                project_id,
3535                repository_id: repository_id.to_proto(),
3536                askpass_id,
3537                prompt,
3538            });
3539            cx.spawn(async move |_, _| {
3540                let mut response = response.await?.response;
3541                tx.send(EncryptedPassword::try_from(response.as_ref())?)
3542                    .ok();
3543                response.zeroize();
3544                anyhow::Ok(())
3545            })
3546            .detach_and_log_err(cx);
3547        });
3548    })
3549}
3550
3551impl RepositoryId {
3552    pub fn to_proto(self) -> u64 {
3553        self.0
3554    }
3555
3556    pub fn from_proto(id: u64) -> Self {
3557        RepositoryId(id)
3558    }
3559}
3560
3561impl RepositorySnapshot {
3562    fn empty(
3563        id: RepositoryId,
3564        work_directory_abs_path: Arc<Path>,
3565        original_repo_abs_path: Option<Arc<Path>>,
3566        path_style: PathStyle,
3567    ) -> Self {
3568        Self {
3569            id,
3570            statuses_by_path: Default::default(),
3571            original_repo_abs_path: original_repo_abs_path
3572                .unwrap_or_else(|| work_directory_abs_path.clone()),
3573            work_directory_abs_path,
3574            branch: None,
3575            head_commit: None,
3576            scan_id: 0,
3577            merge: Default::default(),
3578            remote_origin_url: None,
3579            remote_upstream_url: None,
3580            stash_entries: Default::default(),
3581            linked_worktrees: Arc::from([]),
3582            path_style,
3583        }
3584    }
3585
3586    fn initial_update(&self, project_id: u64) -> proto::UpdateRepository {
3587        proto::UpdateRepository {
3588            branch_summary: self.branch.as_ref().map(branch_to_proto),
3589            head_commit_details: self.head_commit.as_ref().map(commit_details_to_proto),
3590            updated_statuses: self
3591                .statuses_by_path
3592                .iter()
3593                .map(|entry| entry.to_proto())
3594                .collect(),
3595            removed_statuses: Default::default(),
3596            current_merge_conflicts: self
3597                .merge
3598                .merge_heads_by_conflicted_path
3599                .iter()
3600                .map(|(repo_path, _)| repo_path.to_proto())
3601                .collect(),
3602            merge_message: self.merge.message.as_ref().map(|msg| msg.to_string()),
3603            project_id,
3604            id: self.id.to_proto(),
3605            abs_path: self.work_directory_abs_path.to_string_lossy().into_owned(),
3606            entry_ids: vec![self.id.to_proto()],
3607            scan_id: self.scan_id,
3608            is_last_update: true,
3609            stash_entries: self
3610                .stash_entries
3611                .entries
3612                .iter()
3613                .map(stash_to_proto)
3614                .collect(),
3615            remote_upstream_url: self.remote_upstream_url.clone(),
3616            remote_origin_url: self.remote_origin_url.clone(),
3617            original_repo_abs_path: Some(
3618                self.original_repo_abs_path.to_string_lossy().into_owned(),
3619            ),
3620            linked_worktrees: self
3621                .linked_worktrees
3622                .iter()
3623                .map(worktree_to_proto)
3624                .collect(),
3625        }
3626    }
3627
3628    fn build_update(&self, old: &Self, project_id: u64) -> proto::UpdateRepository {
3629        let mut updated_statuses: Vec<proto::StatusEntry> = Vec::new();
3630        let mut removed_statuses: Vec<String> = Vec::new();
3631
3632        let mut new_statuses = self.statuses_by_path.iter().peekable();
3633        let mut old_statuses = old.statuses_by_path.iter().peekable();
3634
3635        let mut current_new_entry = new_statuses.next();
3636        let mut current_old_entry = old_statuses.next();
3637        loop {
3638            match (current_new_entry, current_old_entry) {
3639                (Some(new_entry), Some(old_entry)) => {
3640                    match new_entry.repo_path.cmp(&old_entry.repo_path) {
3641                        Ordering::Less => {
3642                            updated_statuses.push(new_entry.to_proto());
3643                            current_new_entry = new_statuses.next();
3644                        }
3645                        Ordering::Equal => {
3646                            if new_entry.status != old_entry.status
3647                                || new_entry.diff_stat != old_entry.diff_stat
3648                            {
3649                                updated_statuses.push(new_entry.to_proto());
3650                            }
3651                            current_old_entry = old_statuses.next();
3652                            current_new_entry = new_statuses.next();
3653                        }
3654                        Ordering::Greater => {
3655                            removed_statuses.push(old_entry.repo_path.to_proto());
3656                            current_old_entry = old_statuses.next();
3657                        }
3658                    }
3659                }
3660                (None, Some(old_entry)) => {
3661                    removed_statuses.push(old_entry.repo_path.to_proto());
3662                    current_old_entry = old_statuses.next();
3663                }
3664                (Some(new_entry), None) => {
3665                    updated_statuses.push(new_entry.to_proto());
3666                    current_new_entry = new_statuses.next();
3667                }
3668                (None, None) => break,
3669            }
3670        }
3671
3672        proto::UpdateRepository {
3673            branch_summary: self.branch.as_ref().map(branch_to_proto),
3674            head_commit_details: self.head_commit.as_ref().map(commit_details_to_proto),
3675            updated_statuses,
3676            removed_statuses,
3677            current_merge_conflicts: self
3678                .merge
3679                .merge_heads_by_conflicted_path
3680                .iter()
3681                .map(|(path, _)| path.to_proto())
3682                .collect(),
3683            merge_message: self.merge.message.as_ref().map(|msg| msg.to_string()),
3684            project_id,
3685            id: self.id.to_proto(),
3686            abs_path: self.work_directory_abs_path.to_string_lossy().into_owned(),
3687            entry_ids: vec![],
3688            scan_id: self.scan_id,
3689            is_last_update: true,
3690            stash_entries: self
3691                .stash_entries
3692                .entries
3693                .iter()
3694                .map(stash_to_proto)
3695                .collect(),
3696            remote_upstream_url: self.remote_upstream_url.clone(),
3697            remote_origin_url: self.remote_origin_url.clone(),
3698            original_repo_abs_path: Some(
3699                self.original_repo_abs_path.to_string_lossy().into_owned(),
3700            ),
3701            linked_worktrees: self
3702                .linked_worktrees
3703                .iter()
3704                .map(worktree_to_proto)
3705                .collect(),
3706        }
3707    }
3708
3709    /// The main worktree is the original checkout that other worktrees were
3710    /// created from.
3711    ///
3712    /// For example, if you had both `~/code/zed` and `~/code/worktrees/zed-2`,
3713    /// then `~/code/zed` is the main worktree and `~/code/worktrees/zed-2` is a linked worktree.
3714    pub fn is_main_worktree(&self) -> bool {
3715        self.work_directory_abs_path == self.original_repo_abs_path
3716    }
3717
3718    /// Returns true if this repository is a linked worktree, that is, one that
3719    /// was created from another worktree.
3720    ///
3721    /// This is by definition the opposite of [`Self::is_main_worktree`].
3722    pub fn is_linked_worktree(&self) -> bool {
3723        !self.is_main_worktree()
3724    }
3725
3726    pub fn linked_worktrees(&self) -> &[GitWorktree] {
3727        &self.linked_worktrees
3728    }
3729
3730    pub fn status(&self) -> impl Iterator<Item = StatusEntry> + '_ {
3731        self.statuses_by_path.iter().cloned()
3732    }
3733
3734    pub fn status_summary(&self) -> GitSummary {
3735        self.statuses_by_path.summary().item_summary
3736    }
3737
3738    pub fn status_for_path(&self, path: &RepoPath) -> Option<StatusEntry> {
3739        self.statuses_by_path
3740            .get(&PathKey(path.as_ref().clone()), ())
3741            .cloned()
3742    }
3743
3744    pub fn diff_stat_for_path(&self, path: &RepoPath) -> Option<DiffStat> {
3745        self.statuses_by_path
3746            .get(&PathKey(path.as_ref().clone()), ())
3747            .and_then(|entry| entry.diff_stat)
3748    }
3749
3750    pub fn abs_path_to_repo_path(&self, abs_path: &Path) -> Option<RepoPath> {
3751        Self::abs_path_to_repo_path_inner(&self.work_directory_abs_path, abs_path, self.path_style)
3752    }
3753
3754    fn repo_path_to_abs_path(&self, repo_path: &RepoPath) -> PathBuf {
3755        self.path_style
3756            .join(&self.work_directory_abs_path, repo_path.as_std_path())
3757            .unwrap()
3758            .into()
3759    }
3760
3761    #[inline]
3762    fn abs_path_to_repo_path_inner(
3763        work_directory_abs_path: &Path,
3764        abs_path: &Path,
3765        path_style: PathStyle,
3766    ) -> Option<RepoPath> {
3767        let rel_path = path_style.strip_prefix(abs_path, work_directory_abs_path)?;
3768        Some(RepoPath::from_rel_path(&rel_path))
3769    }
3770
3771    pub fn had_conflict_on_last_merge_head_change(&self, repo_path: &RepoPath) -> bool {
3772        self.merge
3773            .merge_heads_by_conflicted_path
3774            .contains_key(repo_path)
3775    }
3776
3777    pub fn has_conflict(&self, repo_path: &RepoPath) -> bool {
3778        let had_conflict_on_last_merge_head_change = self
3779            .merge
3780            .merge_heads_by_conflicted_path
3781            .contains_key(repo_path);
3782        let has_conflict_currently = self
3783            .status_for_path(repo_path)
3784            .is_some_and(|entry| entry.status.is_conflicted());
3785        had_conflict_on_last_merge_head_change || has_conflict_currently
3786    }
3787
3788    /// This is the name that will be displayed in the repository selector for this repository.
3789    pub fn display_name(&self) -> SharedString {
3790        self.work_directory_abs_path
3791            .file_name()
3792            .unwrap_or_default()
3793            .to_string_lossy()
3794            .to_string()
3795            .into()
3796    }
3797}
3798
3799pub fn stash_to_proto(entry: &StashEntry) -> proto::StashEntry {
3800    proto::StashEntry {
3801        oid: entry.oid.as_bytes().to_vec(),
3802        message: entry.message.clone(),
3803        branch: entry.branch.clone(),
3804        index: entry.index as u64,
3805        timestamp: entry.timestamp,
3806    }
3807}
3808
3809pub fn proto_to_stash(entry: &proto::StashEntry) -> Result<StashEntry> {
3810    Ok(StashEntry {
3811        oid: Oid::from_bytes(&entry.oid)?,
3812        message: entry.message.clone(),
3813        index: entry.index as usize,
3814        branch: entry.branch.clone(),
3815        timestamp: entry.timestamp,
3816    })
3817}
3818
3819impl MergeDetails {
3820    async fn update(
3821        &mut self,
3822        backend: &Arc<dyn GitRepository>,
3823        current_conflicted_paths: Vec<RepoPath>,
3824    ) -> Result<bool> {
3825        log::debug!("load merge details");
3826        self.message = backend.merge_message().await.map(SharedString::from);
3827        let heads = backend
3828            .revparse_batch(vec![
3829                "MERGE_HEAD".into(),
3830                "CHERRY_PICK_HEAD".into(),
3831                "REBASE_HEAD".into(),
3832                "REVERT_HEAD".into(),
3833                "APPLY_HEAD".into(),
3834            ])
3835            .await
3836            .log_err()
3837            .unwrap_or_default()
3838            .into_iter()
3839            .map(|opt| opt.map(SharedString::from))
3840            .collect::<Vec<_>>();
3841
3842        let mut conflicts_changed = false;
3843
3844        // Record the merge state for newly conflicted paths
3845        for path in &current_conflicted_paths {
3846            if self.merge_heads_by_conflicted_path.get(&path).is_none() {
3847                conflicts_changed = true;
3848                self.merge_heads_by_conflicted_path
3849                    .insert(path.clone(), heads.clone());
3850            }
3851        }
3852
3853        // Clear state for paths that are no longer conflicted and for which the merge heads have changed
3854        self.merge_heads_by_conflicted_path
3855            .retain(|path, old_merge_heads| {
3856                let keep = current_conflicted_paths.contains(path)
3857                    || (old_merge_heads == &heads
3858                        && old_merge_heads.iter().any(|head| head.is_some()));
3859                if !keep {
3860                    conflicts_changed = true;
3861                }
3862                keep
3863            });
3864
3865        Ok(conflicts_changed)
3866    }
3867}
3868
3869impl Repository {
3870    pub fn is_trusted(&self) -> bool {
3871        match self.repository_state.peek() {
3872            Some(Ok(RepositoryState::Local(state))) => state.backend.is_trusted(),
3873            _ => false,
3874        }
3875    }
3876
3877    pub fn snapshot(&self) -> RepositorySnapshot {
3878        self.snapshot.clone()
3879    }
3880
3881    pub fn pending_ops(&self) -> impl Iterator<Item = PendingOps> + '_ {
3882        self.pending_ops.iter().cloned()
3883    }
3884
3885    pub fn pending_ops_summary(&self) -> PathSummary<PendingOpsSummary> {
3886        self.pending_ops.summary().clone()
3887    }
3888
3889    pub fn pending_ops_for_path(&self, path: &RepoPath) -> Option<PendingOps> {
3890        self.pending_ops
3891            .get(&PathKey(path.as_ref().clone()), ())
3892            .cloned()
3893    }
3894
3895    fn local(
3896        id: RepositoryId,
3897        work_directory_abs_path: Arc<Path>,
3898        original_repo_abs_path: Arc<Path>,
3899        dot_git_abs_path: Arc<Path>,
3900        project_environment: WeakEntity<ProjectEnvironment>,
3901        fs: Arc<dyn Fs>,
3902        is_trusted: bool,
3903        git_store: WeakEntity<GitStore>,
3904        cx: &mut Context<Self>,
3905    ) -> Self {
3906        let snapshot = RepositorySnapshot::empty(
3907            id,
3908            work_directory_abs_path.clone(),
3909            Some(original_repo_abs_path),
3910            PathStyle::local(),
3911        );
3912        let state = cx
3913            .spawn(async move |_, cx| {
3914                LocalRepositoryState::new(
3915                    work_directory_abs_path,
3916                    dot_git_abs_path,
3917                    project_environment,
3918                    fs,
3919                    is_trusted,
3920                    cx,
3921                )
3922                .await
3923                .map_err(|err| err.to_string())
3924            })
3925            .shared();
3926        let job_sender = Repository::spawn_local_git_worker(state.clone(), cx);
3927        let state = cx
3928            .spawn(async move |_, _| {
3929                let state = state.await?;
3930                Ok(RepositoryState::Local(state))
3931            })
3932            .shared();
3933
3934        cx.subscribe_self(move |this, event: &RepositoryEvent, _| match event {
3935            RepositoryEvent::BranchChanged => {
3936                if this.scan_id > 1 {
3937                    this.initial_graph_data.clear();
3938                }
3939            }
3940            _ => {}
3941        })
3942        .detach();
3943
3944        Repository {
3945            this: cx.weak_entity(),
3946            git_store,
3947            snapshot,
3948            pending_ops: Default::default(),
3949            repository_state: state,
3950            commit_message_buffer: None,
3951            askpass_delegates: Default::default(),
3952            paths_needing_status_update: Default::default(),
3953            latest_askpass_id: 0,
3954            job_sender,
3955            job_id: 0,
3956            active_jobs: Default::default(),
3957            initial_graph_data: Default::default(),
3958            commit_data: Default::default(),
3959            graph_commit_data_handler: GraphCommitHandlerState::Closed,
3960        }
3961    }
3962
3963    fn remote(
3964        id: RepositoryId,
3965        work_directory_abs_path: Arc<Path>,
3966        original_repo_abs_path: Option<Arc<Path>>,
3967        path_style: PathStyle,
3968        project_id: ProjectId,
3969        client: AnyProtoClient,
3970        git_store: WeakEntity<GitStore>,
3971        cx: &mut Context<Self>,
3972    ) -> Self {
3973        let snapshot = RepositorySnapshot::empty(
3974            id,
3975            work_directory_abs_path,
3976            original_repo_abs_path,
3977            path_style,
3978        );
3979        let repository_state = RemoteRepositoryState { project_id, client };
3980        let job_sender = Self::spawn_remote_git_worker(repository_state.clone(), cx);
3981        let repository_state = Task::ready(Ok(RepositoryState::Remote(repository_state))).shared();
3982        Self {
3983            this: cx.weak_entity(),
3984            snapshot,
3985            commit_message_buffer: None,
3986            git_store,
3987            pending_ops: Default::default(),
3988            paths_needing_status_update: Default::default(),
3989            job_sender,
3990            repository_state,
3991            askpass_delegates: Default::default(),
3992            latest_askpass_id: 0,
3993            active_jobs: Default::default(),
3994            job_id: 0,
3995            initial_graph_data: Default::default(),
3996            commit_data: Default::default(),
3997            graph_commit_data_handler: GraphCommitHandlerState::Closed,
3998        }
3999    }
4000
4001    pub fn git_store(&self) -> Option<Entity<GitStore>> {
4002        self.git_store.upgrade()
4003    }
4004
4005    fn reload_buffer_diff_bases(&mut self, cx: &mut Context<Self>) {
4006        let this = cx.weak_entity();
4007        let git_store = self.git_store.clone();
4008        let _ = self.send_keyed_job(
4009            Some(GitJobKey::ReloadBufferDiffBases),
4010            None,
4011            |state, mut cx| async move {
4012                let RepositoryState::Local(LocalRepositoryState { backend, .. }) = state else {
4013                    log::error!("tried to recompute diffs for a non-local repository");
4014                    return Ok(());
4015                };
4016
4017                let Some(this) = this.upgrade() else {
4018                    return Ok(());
4019                };
4020
4021                let repo_diff_state_updates = this.update(&mut cx, |this, cx| {
4022                    git_store.update(cx, |git_store, cx| {
4023                        git_store
4024                            .diffs
4025                            .iter()
4026                            .filter_map(|(buffer_id, diff_state)| {
4027                                let buffer_store = git_store.buffer_store.read(cx);
4028                                let buffer = buffer_store.get(*buffer_id)?;
4029                                let file = File::from_dyn(buffer.read(cx).file())?;
4030                                let abs_path = file.worktree.read(cx).absolutize(&file.path);
4031                                let repo_path = this.abs_path_to_repo_path(&abs_path)?;
4032                                log::debug!(
4033                                    "start reload diff bases for repo path {}",
4034                                    repo_path.as_unix_str()
4035                                );
4036                                diff_state.update(cx, |diff_state, _| {
4037                                    let has_unstaged_diff = diff_state
4038                                        .unstaged_diff
4039                                        .as_ref()
4040                                        .is_some_and(|diff| diff.is_upgradable());
4041                                    let has_uncommitted_diff = diff_state
4042                                        .uncommitted_diff
4043                                        .as_ref()
4044                                        .is_some_and(|set| set.is_upgradable());
4045
4046                                    Some((
4047                                        buffer,
4048                                        repo_path,
4049                                        has_unstaged_diff.then(|| diff_state.index_text.clone()),
4050                                        has_uncommitted_diff.then(|| diff_state.head_text.clone()),
4051                                    ))
4052                                })
4053                            })
4054                            .collect::<Vec<_>>()
4055                    })
4056                })?;
4057
4058                let buffer_diff_base_changes = cx
4059                    .background_spawn(async move {
4060                        let mut changes = Vec::new();
4061                        for (buffer, repo_path, current_index_text, current_head_text) in
4062                            &repo_diff_state_updates
4063                        {
4064                            let index_text = if current_index_text.is_some() {
4065                                backend.load_index_text(repo_path.clone()).await
4066                            } else {
4067                                None
4068                            };
4069                            let head_text = if current_head_text.is_some() {
4070                                backend.load_committed_text(repo_path.clone()).await
4071                            } else {
4072                                None
4073                            };
4074
4075                            let change =
4076                                match (current_index_text.as_ref(), current_head_text.as_ref()) {
4077                                    (Some(current_index), Some(current_head)) => {
4078                                        let index_changed =
4079                                            index_text.as_deref() != current_index.as_deref();
4080                                        let head_changed =
4081                                            head_text.as_deref() != current_head.as_deref();
4082                                        if index_changed && head_changed {
4083                                            if index_text == head_text {
4084                                                Some(DiffBasesChange::SetBoth(head_text))
4085                                            } else {
4086                                                Some(DiffBasesChange::SetEach {
4087                                                    index: index_text,
4088                                                    head: head_text,
4089                                                })
4090                                            }
4091                                        } else if index_changed {
4092                                            Some(DiffBasesChange::SetIndex(index_text))
4093                                        } else if head_changed {
4094                                            Some(DiffBasesChange::SetHead(head_text))
4095                                        } else {
4096                                            None
4097                                        }
4098                                    }
4099                                    (Some(current_index), None) => {
4100                                        let index_changed =
4101                                            index_text.as_deref() != current_index.as_deref();
4102                                        index_changed
4103                                            .then_some(DiffBasesChange::SetIndex(index_text))
4104                                    }
4105                                    (None, Some(current_head)) => {
4106                                        let head_changed =
4107                                            head_text.as_deref() != current_head.as_deref();
4108                                        head_changed.then_some(DiffBasesChange::SetHead(head_text))
4109                                    }
4110                                    (None, None) => None,
4111                                };
4112
4113                            changes.push((buffer.clone(), change))
4114                        }
4115                        changes
4116                    })
4117                    .await;
4118
4119                git_store.update(&mut cx, |git_store, cx| {
4120                    for (buffer, diff_bases_change) in buffer_diff_base_changes {
4121                        let buffer_snapshot = buffer.read(cx).text_snapshot();
4122                        let buffer_id = buffer_snapshot.remote_id();
4123                        let Some(diff_state) = git_store.diffs.get(&buffer_id) else {
4124                            continue;
4125                        };
4126
4127                        let downstream_client = git_store.downstream_client();
4128                        diff_state.update(cx, |diff_state, cx| {
4129                            use proto::update_diff_bases::Mode;
4130
4131                            if let Some((diff_bases_change, (client, project_id))) =
4132                                diff_bases_change.clone().zip(downstream_client)
4133                            {
4134                                let (staged_text, committed_text, mode) = match diff_bases_change {
4135                                    DiffBasesChange::SetIndex(index) => {
4136                                        (index, None, Mode::IndexOnly)
4137                                    }
4138                                    DiffBasesChange::SetHead(head) => (None, head, Mode::HeadOnly),
4139                                    DiffBasesChange::SetEach { index, head } => {
4140                                        (index, head, Mode::IndexAndHead)
4141                                    }
4142                                    DiffBasesChange::SetBoth(text) => {
4143                                        (None, text, Mode::IndexMatchesHead)
4144                                    }
4145                                };
4146                                client
4147                                    .send(proto::UpdateDiffBases {
4148                                        project_id: project_id.to_proto(),
4149                                        buffer_id: buffer_id.to_proto(),
4150                                        staged_text,
4151                                        committed_text,
4152                                        mode: mode as i32,
4153                                    })
4154                                    .log_err();
4155                            }
4156
4157                            diff_state.diff_bases_changed(buffer_snapshot, diff_bases_change, cx);
4158                        });
4159                    }
4160                })
4161            },
4162        );
4163    }
4164
4165    pub fn send_job<F, Fut, R>(
4166        &mut self,
4167        status: Option<SharedString>,
4168        job: F,
4169    ) -> oneshot::Receiver<R>
4170    where
4171        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
4172        Fut: Future<Output = R> + 'static,
4173        R: Send + 'static,
4174    {
4175        self.send_keyed_job(None, status, job)
4176    }
4177
4178    fn send_keyed_job<F, Fut, R>(
4179        &mut self,
4180        key: Option<GitJobKey>,
4181        status: Option<SharedString>,
4182        job: F,
4183    ) -> oneshot::Receiver<R>
4184    where
4185        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
4186        Fut: Future<Output = R> + 'static,
4187        R: Send + 'static,
4188    {
4189        let (result_tx, result_rx) = futures::channel::oneshot::channel();
4190        let job_id = post_inc(&mut self.job_id);
4191        let this = self.this.clone();
4192        self.job_sender
4193            .unbounded_send(GitJob {
4194                key,
4195                job: Box::new(move |state, cx: &mut AsyncApp| {
4196                    let job = job(state, cx.clone());
4197                    cx.spawn(async move |cx| {
4198                        if let Some(s) = status.clone() {
4199                            this.update(cx, |this, cx| {
4200                                this.active_jobs.insert(
4201                                    job_id,
4202                                    JobInfo {
4203                                        start: Instant::now(),
4204                                        message: s.clone(),
4205                                    },
4206                                );
4207
4208                                cx.notify();
4209                            })
4210                            .ok();
4211                        }
4212                        let result = job.await;
4213
4214                        this.update(cx, |this, cx| {
4215                            this.active_jobs.remove(&job_id);
4216                            cx.notify();
4217                        })
4218                        .ok();
4219
4220                        result_tx.send(result).ok();
4221                    })
4222                }),
4223            })
4224            .ok();
4225        result_rx
4226    }
4227
4228    pub fn set_as_active_repository(&self, cx: &mut Context<Self>) {
4229        let Some(git_store) = self.git_store.upgrade() else {
4230            return;
4231        };
4232        let entity = cx.entity();
4233        git_store.update(cx, |git_store, cx| {
4234            let Some((&id, _)) = git_store
4235                .repositories
4236                .iter()
4237                .find(|(_, handle)| *handle == &entity)
4238            else {
4239                return;
4240            };
4241            git_store.active_repo_id = Some(id);
4242            cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
4243        });
4244    }
4245
4246    pub fn cached_status(&self) -> impl '_ + Iterator<Item = StatusEntry> {
4247        self.snapshot.status()
4248    }
4249
4250    pub fn diff_stat_for_path(&self, path: &RepoPath) -> Option<DiffStat> {
4251        self.snapshot.diff_stat_for_path(path)
4252    }
4253
4254    pub fn cached_stash(&self) -> GitStash {
4255        self.snapshot.stash_entries.clone()
4256    }
4257
4258    pub fn repo_path_to_project_path(&self, path: &RepoPath, cx: &App) -> Option<ProjectPath> {
4259        let git_store = self.git_store.upgrade()?;
4260        let worktree_store = git_store.read(cx).worktree_store.read(cx);
4261        let abs_path = self.snapshot.repo_path_to_abs_path(path);
4262        let abs_path = SanitizedPath::new(&abs_path);
4263        let (worktree, relative_path) = worktree_store.find_worktree(abs_path, cx)?;
4264        Some(ProjectPath {
4265            worktree_id: worktree.read(cx).id(),
4266            path: relative_path,
4267        })
4268    }
4269
4270    pub fn project_path_to_repo_path(&self, path: &ProjectPath, cx: &App) -> Option<RepoPath> {
4271        let git_store = self.git_store.upgrade()?;
4272        let worktree_store = git_store.read(cx).worktree_store.read(cx);
4273        let abs_path = worktree_store.absolutize(path, cx)?;
4274        self.snapshot.abs_path_to_repo_path(&abs_path)
4275    }
4276
4277    pub fn contains_sub_repo(&self, other: &Entity<Self>, cx: &App) -> bool {
4278        other
4279            .read(cx)
4280            .snapshot
4281            .work_directory_abs_path
4282            .starts_with(&self.snapshot.work_directory_abs_path)
4283    }
4284
4285    pub fn open_commit_buffer(
4286        &mut self,
4287        languages: Option<Arc<LanguageRegistry>>,
4288        buffer_store: Entity<BufferStore>,
4289        cx: &mut Context<Self>,
4290    ) -> Task<Result<Entity<Buffer>>> {
4291        let id = self.id;
4292        if let Some(buffer) = self.commit_message_buffer.clone() {
4293            return Task::ready(Ok(buffer));
4294        }
4295        let this = cx.weak_entity();
4296
4297        let rx = self.send_job(None, move |state, mut cx| async move {
4298            let Some(this) = this.upgrade() else {
4299                bail!("git store was dropped");
4300            };
4301            match state {
4302                RepositoryState::Local(..) => {
4303                    this.update(&mut cx, |_, cx| {
4304                        Self::open_local_commit_buffer(languages, buffer_store, cx)
4305                    })
4306                    .await
4307                }
4308                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
4309                    let request = client.request(proto::OpenCommitMessageBuffer {
4310                        project_id: project_id.0,
4311                        repository_id: id.to_proto(),
4312                    });
4313                    let response = request.await.context("requesting to open commit buffer")?;
4314                    let buffer_id = BufferId::new(response.buffer_id)?;
4315                    let buffer = buffer_store
4316                        .update(&mut cx, |buffer_store, cx| {
4317                            buffer_store.wait_for_remote_buffer(buffer_id, cx)
4318                        })
4319                        .await?;
4320                    if let Some(language_registry) = languages {
4321                        let git_commit_language =
4322                            language_registry.language_for_name("Git Commit").await?;
4323                        buffer.update(&mut cx, |buffer, cx| {
4324                            buffer.set_language(Some(git_commit_language), cx);
4325                        });
4326                    }
4327                    this.update(&mut cx, |this, _| {
4328                        this.commit_message_buffer = Some(buffer.clone());
4329                    });
4330                    Ok(buffer)
4331                }
4332            }
4333        });
4334
4335        cx.spawn(|_, _: &mut AsyncApp| async move { rx.await? })
4336    }
4337
4338    fn open_local_commit_buffer(
4339        language_registry: Option<Arc<LanguageRegistry>>,
4340        buffer_store: Entity<BufferStore>,
4341        cx: &mut Context<Self>,
4342    ) -> Task<Result<Entity<Buffer>>> {
4343        cx.spawn(async move |repository, cx| {
4344            let git_commit_language = match language_registry {
4345                Some(language_registry) => {
4346                    Some(language_registry.language_for_name("Git Commit").await?)
4347                }
4348                None => None,
4349            };
4350            let buffer = buffer_store
4351                .update(cx, |buffer_store, cx| {
4352                    buffer_store.create_buffer(git_commit_language, false, cx)
4353                })
4354                .await?;
4355
4356            repository.update(cx, |repository, _| {
4357                repository.commit_message_buffer = Some(buffer.clone());
4358            })?;
4359            Ok(buffer)
4360        })
4361    }
4362
4363    pub fn checkout_files(
4364        &mut self,
4365        commit: &str,
4366        paths: Vec<RepoPath>,
4367        cx: &mut Context<Self>,
4368    ) -> Task<Result<()>> {
4369        let commit = commit.to_string();
4370        let id = self.id;
4371
4372        self.spawn_job_with_tracking(
4373            paths.clone(),
4374            pending_op::GitStatus::Reverted,
4375            cx,
4376            async move |this, cx| {
4377                this.update(cx, |this, _cx| {
4378                    this.send_job(
4379                        Some(format!("git checkout {}", commit).into()),
4380                        move |git_repo, _| async move {
4381                            match git_repo {
4382                                RepositoryState::Local(LocalRepositoryState {
4383                                    backend,
4384                                    environment,
4385                                    ..
4386                                }) => {
4387                                    backend
4388                                        .checkout_files(commit, paths, environment.clone())
4389                                        .await
4390                                }
4391                                RepositoryState::Remote(RemoteRepositoryState {
4392                                    project_id,
4393                                    client,
4394                                }) => {
4395                                    client
4396                                        .request(proto::GitCheckoutFiles {
4397                                            project_id: project_id.0,
4398                                            repository_id: id.to_proto(),
4399                                            commit,
4400                                            paths: paths
4401                                                .into_iter()
4402                                                .map(|p| p.to_proto())
4403                                                .collect(),
4404                                        })
4405                                        .await?;
4406
4407                                    Ok(())
4408                                }
4409                            }
4410                        },
4411                    )
4412                })?
4413                .await?
4414            },
4415        )
4416    }
4417
4418    pub fn reset(
4419        &mut self,
4420        commit: String,
4421        reset_mode: ResetMode,
4422        _cx: &mut App,
4423    ) -> oneshot::Receiver<Result<()>> {
4424        let id = self.id;
4425
4426        self.send_job(None, move |git_repo, _| async move {
4427            match git_repo {
4428                RepositoryState::Local(LocalRepositoryState {
4429                    backend,
4430                    environment,
4431                    ..
4432                }) => backend.reset(commit, reset_mode, environment).await,
4433                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
4434                    client
4435                        .request(proto::GitReset {
4436                            project_id: project_id.0,
4437                            repository_id: id.to_proto(),
4438                            commit,
4439                            mode: match reset_mode {
4440                                ResetMode::Soft => git_reset::ResetMode::Soft.into(),
4441                                ResetMode::Mixed => git_reset::ResetMode::Mixed.into(),
4442                            },
4443                        })
4444                        .await?;
4445
4446                    Ok(())
4447                }
4448            }
4449        })
4450    }
4451
4452    pub fn show(&mut self, commit: String) -> oneshot::Receiver<Result<CommitDetails>> {
4453        let id = self.id;
4454        self.send_job(None, move |git_repo, _cx| async move {
4455            match git_repo {
4456                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
4457                    backend.show(commit).await
4458                }
4459                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
4460                    let resp = client
4461                        .request(proto::GitShow {
4462                            project_id: project_id.0,
4463                            repository_id: id.to_proto(),
4464                            commit,
4465                        })
4466                        .await?;
4467
4468                    Ok(CommitDetails {
4469                        sha: resp.sha.into(),
4470                        message: resp.message.into(),
4471                        commit_timestamp: resp.commit_timestamp,
4472                        author_email: resp.author_email.into(),
4473                        author_name: resp.author_name.into(),
4474                    })
4475                }
4476            }
4477        })
4478    }
4479
4480    pub fn load_commit_diff(&mut self, commit: String) -> oneshot::Receiver<Result<CommitDiff>> {
4481        let id = self.id;
4482        self.send_job(None, move |git_repo, cx| async move {
4483            match git_repo {
4484                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
4485                    backend.load_commit(commit, cx).await
4486                }
4487                RepositoryState::Remote(RemoteRepositoryState {
4488                    client, project_id, ..
4489                }) => {
4490                    let response = client
4491                        .request(proto::LoadCommitDiff {
4492                            project_id: project_id.0,
4493                            repository_id: id.to_proto(),
4494                            commit,
4495                        })
4496                        .await?;
4497                    Ok(CommitDiff {
4498                        files: response
4499                            .files
4500                            .into_iter()
4501                            .map(|file| {
4502                                Ok(CommitFile {
4503                                    path: RepoPath::from_proto(&file.path)?,
4504                                    old_text: file.old_text,
4505                                    new_text: file.new_text,
4506                                    is_binary: file.is_binary,
4507                                })
4508                            })
4509                            .collect::<Result<Vec<_>>>()?,
4510                    })
4511                }
4512            }
4513        })
4514    }
4515
4516    pub fn file_history(
4517        &mut self,
4518        path: RepoPath,
4519    ) -> oneshot::Receiver<Result<git::repository::FileHistory>> {
4520        self.file_history_paginated(path, 0, None)
4521    }
4522
4523    pub fn file_history_paginated(
4524        &mut self,
4525        path: RepoPath,
4526        skip: usize,
4527        limit: Option<usize>,
4528    ) -> oneshot::Receiver<Result<git::repository::FileHistory>> {
4529        let id = self.id;
4530        self.send_job(None, move |git_repo, _cx| async move {
4531            match git_repo {
4532                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
4533                    backend.file_history_paginated(path, skip, limit).await
4534                }
4535                RepositoryState::Remote(RemoteRepositoryState { client, project_id }) => {
4536                    let response = client
4537                        .request(proto::GitFileHistory {
4538                            project_id: project_id.0,
4539                            repository_id: id.to_proto(),
4540                            path: path.to_proto(),
4541                            skip: skip as u64,
4542                            limit: limit.map(|l| l as u64),
4543                        })
4544                        .await?;
4545                    Ok(git::repository::FileHistory {
4546                        entries: response
4547                            .entries
4548                            .into_iter()
4549                            .map(|entry| git::repository::FileHistoryEntry {
4550                                sha: entry.sha.into(),
4551                                subject: entry.subject.into(),
4552                                message: entry.message.into(),
4553                                commit_timestamp: entry.commit_timestamp,
4554                                author_name: entry.author_name.into(),
4555                                author_email: entry.author_email.into(),
4556                            })
4557                            .collect(),
4558                        path: RepoPath::from_proto(&response.path)?,
4559                    })
4560                }
4561            }
4562        })
4563    }
4564
4565    pub fn get_graph_data(
4566        &self,
4567        log_source: LogSource,
4568        log_order: LogOrder,
4569    ) -> Option<&InitialGitGraphData> {
4570        self.initial_graph_data.get(&(log_source, log_order))
4571    }
4572
4573    pub fn graph_data(
4574        &mut self,
4575        log_source: LogSource,
4576        log_order: LogOrder,
4577        range: Range<usize>,
4578        cx: &mut Context<Self>,
4579    ) -> GraphDataResponse<'_> {
4580        let initial_commit_data = self
4581            .initial_graph_data
4582            .entry((log_source.clone(), log_order))
4583            .or_insert_with(|| {
4584                let state = self.repository_state.clone();
4585                let log_source = log_source.clone();
4586
4587                let fetch_task = cx.spawn(async move |repository, cx| {
4588                    let state = state.await;
4589                    let result = match state {
4590                        Ok(RepositoryState::Local(LocalRepositoryState { backend, .. })) => {
4591                            Self::local_git_graph_data(
4592                                repository.clone(),
4593                                backend,
4594                                log_source.clone(),
4595                                log_order,
4596                                cx,
4597                            )
4598                            .await
4599                        }
4600                        Ok(RepositoryState::Remote(_)) => {
4601                            Err("Git graph is not supported for collab yet".into())
4602                        }
4603                        Err(e) => Err(SharedString::from(e)),
4604                    };
4605
4606                    if let Err(fetch_task_error) = result {
4607                        repository
4608                            .update(cx, |repository, _| {
4609                                if let Some(data) = repository
4610                                    .initial_graph_data
4611                                    .get_mut(&(log_source, log_order))
4612                                {
4613                                    data.error = Some(fetch_task_error);
4614                                } else {
4615                                    debug_panic!(
4616                                        "This task would be dropped if this entry doesn't exist"
4617                                    );
4618                                }
4619                            })
4620                            .ok();
4621                    }
4622                });
4623
4624                InitialGitGraphData {
4625                    fetch_task,
4626                    error: None,
4627                    commit_data: Vec::new(),
4628                    commit_oid_to_index: HashMap::default(),
4629                }
4630            });
4631
4632        let max_start = initial_commit_data.commit_data.len().saturating_sub(1);
4633        let max_end = initial_commit_data.commit_data.len();
4634
4635        GraphDataResponse {
4636            commits: &initial_commit_data.commit_data
4637                [range.start.min(max_start)..range.end.min(max_end)],
4638            is_loading: !initial_commit_data.fetch_task.is_ready(),
4639            error: initial_commit_data.error.clone(),
4640        }
4641    }
4642
4643    async fn local_git_graph_data(
4644        this: WeakEntity<Self>,
4645        backend: Arc<dyn GitRepository>,
4646        log_source: LogSource,
4647        log_order: LogOrder,
4648        cx: &mut AsyncApp,
4649    ) -> Result<(), SharedString> {
4650        let (request_tx, request_rx) =
4651            smol::channel::unbounded::<Vec<Arc<InitialGraphCommitData>>>();
4652
4653        let task = cx.background_executor().spawn({
4654            let log_source = log_source.clone();
4655            async move {
4656                backend
4657                    .initial_graph_data(log_source, log_order, request_tx)
4658                    .await
4659                    .map_err(|err| SharedString::from(err.to_string()))
4660            }
4661        });
4662
4663        let graph_data_key = (log_source, log_order);
4664
4665        while let Ok(initial_graph_commit_data) = request_rx.recv().await {
4666            this.update(cx, |repository, cx| {
4667                let graph_data = repository
4668                    .initial_graph_data
4669                    .entry(graph_data_key.clone())
4670                    .and_modify(|graph_data| {
4671                        for commit_data in initial_graph_commit_data {
4672                            graph_data
4673                                .commit_oid_to_index
4674                                .insert(commit_data.sha, graph_data.commit_data.len());
4675                            graph_data.commit_data.push(commit_data);
4676
4677                            cx.emit(RepositoryEvent::GraphEvent(
4678                                graph_data_key.clone(),
4679                                GitGraphEvent::CountUpdated(graph_data.commit_data.len()),
4680                            ));
4681                        }
4682                    });
4683
4684                match &graph_data {
4685                    Entry::Occupied(_) => {}
4686                    Entry::Vacant(_) => {
4687                        debug_panic!("This task should be dropped if data doesn't exist");
4688                    }
4689                }
4690            })
4691            .ok();
4692        }
4693
4694        task.await?;
4695        Ok(())
4696    }
4697
4698    pub fn fetch_commit_data(&mut self, sha: Oid, cx: &mut Context<Self>) -> &CommitDataState {
4699        if !self.commit_data.contains_key(&sha) {
4700            match &self.graph_commit_data_handler {
4701                GraphCommitHandlerState::Open(handler) => {
4702                    if handler.commit_data_request.try_send(sha).is_ok() {
4703                        let old_value = self.commit_data.insert(sha, CommitDataState::Loading);
4704                        debug_assert!(old_value.is_none(), "We should never overwrite commit data");
4705                    }
4706                }
4707                GraphCommitHandlerState::Closed => {
4708                    self.open_graph_commit_data_handler(cx);
4709                }
4710                GraphCommitHandlerState::Starting => {}
4711            }
4712        }
4713
4714        self.commit_data
4715            .get(&sha)
4716            .unwrap_or(&CommitDataState::Loading)
4717    }
4718
4719    fn open_graph_commit_data_handler(&mut self, cx: &mut Context<Self>) {
4720        self.graph_commit_data_handler = GraphCommitHandlerState::Starting;
4721
4722        let state = self.repository_state.clone();
4723        let (result_tx, result_rx) = smol::channel::bounded::<(Oid, GraphCommitData)>(64);
4724        let (request_tx, request_rx) = smol::channel::unbounded::<Oid>();
4725
4726        let foreground_task = cx.spawn(async move |this, cx| {
4727            while let Ok((sha, commit_data)) = result_rx.recv().await {
4728                let result = this.update(cx, |this, cx| {
4729                    let old_value = this
4730                        .commit_data
4731                        .insert(sha, CommitDataState::Loaded(Arc::new(commit_data)));
4732                    debug_assert!(
4733                        !matches!(old_value, Some(CommitDataState::Loaded(_))),
4734                        "We should never overwrite commit data"
4735                    );
4736
4737                    cx.notify();
4738                });
4739                if result.is_err() {
4740                    break;
4741                }
4742            }
4743
4744            this.update(cx, |this, _cx| {
4745                this.graph_commit_data_handler = GraphCommitHandlerState::Closed;
4746            })
4747            .ok();
4748        });
4749
4750        let request_tx_for_handler = request_tx;
4751        let background_executor = cx.background_executor().clone();
4752
4753        cx.background_spawn(async move {
4754            let backend = match state.await {
4755                Ok(RepositoryState::Local(LocalRepositoryState { backend, .. })) => backend,
4756                Ok(RepositoryState::Remote(_)) => {
4757                    log::error!("commit_data_reader not supported for remote repositories");
4758                    return;
4759                }
4760                Err(error) => {
4761                    log::error!("failed to get repository state: {error}");
4762                    return;
4763                }
4764            };
4765
4766            let reader = match backend.commit_data_reader() {
4767                Ok(reader) => reader,
4768                Err(error) => {
4769                    log::error!("failed to create commit data reader: {error:?}");
4770                    return;
4771                }
4772            };
4773
4774            loop {
4775                let timeout = background_executor.timer(std::time::Duration::from_secs(10));
4776
4777                futures::select_biased! {
4778                    sha = futures::FutureExt::fuse(request_rx.recv()) => {
4779                        let Ok(sha) = sha else {
4780                            break;
4781                        };
4782
4783                        match reader.read(sha).await {
4784                            Ok(commit_data) => {
4785                                if result_tx.send((sha, commit_data)).await.is_err() {
4786                                    break;
4787                                }
4788                            }
4789                            Err(error) => {
4790                                log::error!("failed to read commit data for {sha}: {error:?}");
4791                            }
4792                        }
4793                    }
4794                    _ = futures::FutureExt::fuse(timeout) => {
4795                        break;
4796                    }
4797                }
4798            }
4799
4800            drop(result_tx);
4801        })
4802        .detach();
4803
4804        self.graph_commit_data_handler = GraphCommitHandlerState::Open(GraphCommitDataHandler {
4805            _task: foreground_task,
4806            commit_data_request: request_tx_for_handler,
4807        });
4808    }
4809
4810    fn buffer_store(&self, cx: &App) -> Option<Entity<BufferStore>> {
4811        Some(self.git_store.upgrade()?.read(cx).buffer_store.clone())
4812    }
4813
4814    fn save_buffers<'a>(
4815        &self,
4816        entries: impl IntoIterator<Item = &'a RepoPath>,
4817        cx: &mut Context<Self>,
4818    ) -> Vec<Task<anyhow::Result<()>>> {
4819        let mut save_futures = Vec::new();
4820        if let Some(buffer_store) = self.buffer_store(cx) {
4821            buffer_store.update(cx, |buffer_store, cx| {
4822                for path in entries {
4823                    let Some(project_path) = self.repo_path_to_project_path(path, cx) else {
4824                        continue;
4825                    };
4826                    if let Some(buffer) = buffer_store.get_by_path(&project_path)
4827                        && buffer
4828                            .read(cx)
4829                            .file()
4830                            .is_some_and(|file| file.disk_state().exists())
4831                        && buffer.read(cx).has_unsaved_edits()
4832                    {
4833                        save_futures.push(buffer_store.save_buffer(buffer, cx));
4834                    }
4835                }
4836            })
4837        }
4838        save_futures
4839    }
4840
4841    pub fn stage_entries(
4842        &mut self,
4843        entries: Vec<RepoPath>,
4844        cx: &mut Context<Self>,
4845    ) -> Task<anyhow::Result<()>> {
4846        self.stage_or_unstage_entries(true, entries, cx)
4847    }
4848
4849    pub fn unstage_entries(
4850        &mut self,
4851        entries: Vec<RepoPath>,
4852        cx: &mut Context<Self>,
4853    ) -> Task<anyhow::Result<()>> {
4854        self.stage_or_unstage_entries(false, entries, cx)
4855    }
4856
4857    fn stage_or_unstage_entries(
4858        &mut self,
4859        stage: bool,
4860        entries: Vec<RepoPath>,
4861        cx: &mut Context<Self>,
4862    ) -> Task<anyhow::Result<()>> {
4863        if entries.is_empty() {
4864            return Task::ready(Ok(()));
4865        }
4866        let Some(git_store) = self.git_store.upgrade() else {
4867            return Task::ready(Ok(()));
4868        };
4869        let id = self.id;
4870        let save_tasks = self.save_buffers(&entries, cx);
4871        let paths = entries
4872            .iter()
4873            .map(|p| p.as_unix_str())
4874            .collect::<Vec<_>>()
4875            .join(" ");
4876        let status = if stage {
4877            format!("git add {paths}")
4878        } else {
4879            format!("git reset {paths}")
4880        };
4881        let job_key = GitJobKey::WriteIndex(entries.clone());
4882
4883        self.spawn_job_with_tracking(
4884            entries.clone(),
4885            if stage {
4886                pending_op::GitStatus::Staged
4887            } else {
4888                pending_op::GitStatus::Unstaged
4889            },
4890            cx,
4891            async move |this, cx| {
4892                for save_task in save_tasks {
4893                    save_task.await?;
4894                }
4895
4896                this.update(cx, |this, cx| {
4897                    let weak_this = cx.weak_entity();
4898                    this.send_keyed_job(
4899                        Some(job_key),
4900                        Some(status.into()),
4901                        move |git_repo, mut cx| async move {
4902                            let hunk_staging_operation_counts = weak_this
4903                                .update(&mut cx, |this, cx| {
4904                                    let mut hunk_staging_operation_counts = HashMap::default();
4905                                    for path in &entries {
4906                                        let Some(project_path) =
4907                                            this.repo_path_to_project_path(path, cx)
4908                                        else {
4909                                            continue;
4910                                        };
4911                                        let Some(buffer) = git_store
4912                                            .read(cx)
4913                                            .buffer_store
4914                                            .read(cx)
4915                                            .get_by_path(&project_path)
4916                                        else {
4917                                            continue;
4918                                        };
4919                                        let Some(diff_state) = git_store
4920                                            .read(cx)
4921                                            .diffs
4922                                            .get(&buffer.read(cx).remote_id())
4923                                            .cloned()
4924                                        else {
4925                                            continue;
4926                                        };
4927                                        let Some(uncommitted_diff) =
4928                                            diff_state.read(cx).uncommitted_diff.as_ref().and_then(
4929                                                |uncommitted_diff| uncommitted_diff.upgrade(),
4930                                            )
4931                                        else {
4932                                            continue;
4933                                        };
4934                                        let buffer_snapshot = buffer.read(cx).text_snapshot();
4935                                        let file_exists = buffer
4936                                            .read(cx)
4937                                            .file()
4938                                            .is_some_and(|file| file.disk_state().exists());
4939                                        let hunk_staging_operation_count =
4940                                            diff_state.update(cx, |diff_state, cx| {
4941                                                uncommitted_diff.update(
4942                                                    cx,
4943                                                    |uncommitted_diff, cx| {
4944                                                        uncommitted_diff
4945                                                            .stage_or_unstage_all_hunks(
4946                                                                stage,
4947                                                                &buffer_snapshot,
4948                                                                file_exists,
4949                                                                cx,
4950                                                            );
4951                                                    },
4952                                                );
4953
4954                                                diff_state.hunk_staging_operation_count += 1;
4955                                                diff_state.hunk_staging_operation_count
4956                                            });
4957                                        hunk_staging_operation_counts.insert(
4958                                            diff_state.downgrade(),
4959                                            hunk_staging_operation_count,
4960                                        );
4961                                    }
4962                                    hunk_staging_operation_counts
4963                                })
4964                                .unwrap_or_default();
4965
4966                            let result = match git_repo {
4967                                RepositoryState::Local(LocalRepositoryState {
4968                                    backend,
4969                                    environment,
4970                                    ..
4971                                }) => {
4972                                    if stage {
4973                                        backend.stage_paths(entries, environment.clone()).await
4974                                    } else {
4975                                        backend.unstage_paths(entries, environment.clone()).await
4976                                    }
4977                                }
4978                                RepositoryState::Remote(RemoteRepositoryState {
4979                                    project_id,
4980                                    client,
4981                                }) => {
4982                                    if stage {
4983                                        client
4984                                            .request(proto::Stage {
4985                                                project_id: project_id.0,
4986                                                repository_id: id.to_proto(),
4987                                                paths: entries
4988                                                    .into_iter()
4989                                                    .map(|repo_path| repo_path.to_proto())
4990                                                    .collect(),
4991                                            })
4992                                            .await
4993                                            .context("sending stage request")
4994                                            .map(|_| ())
4995                                    } else {
4996                                        client
4997                                            .request(proto::Unstage {
4998                                                project_id: project_id.0,
4999                                                repository_id: id.to_proto(),
5000                                                paths: entries
5001                                                    .into_iter()
5002                                                    .map(|repo_path| repo_path.to_proto())
5003                                                    .collect(),
5004                                            })
5005                                            .await
5006                                            .context("sending unstage request")
5007                                            .map(|_| ())
5008                                    }
5009                                }
5010                            };
5011
5012                            for (diff_state, hunk_staging_operation_count) in
5013                                hunk_staging_operation_counts
5014                            {
5015                                diff_state
5016                                    .update(&mut cx, |diff_state, cx| {
5017                                        if result.is_ok() {
5018                                            diff_state.hunk_staging_operation_count_as_of_write =
5019                                                hunk_staging_operation_count;
5020                                        } else if let Some(uncommitted_diff) =
5021                                            &diff_state.uncommitted_diff
5022                                        {
5023                                            uncommitted_diff
5024                                                .update(cx, |uncommitted_diff, cx| {
5025                                                    uncommitted_diff.clear_pending_hunks(cx);
5026                                                })
5027                                                .ok();
5028                                        }
5029                                    })
5030                                    .ok();
5031                            }
5032
5033                            result
5034                        },
5035                    )
5036                })?
5037                .await?
5038            },
5039        )
5040    }
5041
5042    pub fn stage_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
5043        let snapshot = self.snapshot.clone();
5044        let pending_ops = self.pending_ops.clone();
5045        let to_stage = cx.background_spawn(async move {
5046            snapshot
5047                .status()
5048                .filter_map(|entry| {
5049                    if let Some(ops) =
5050                        pending_ops.get(&PathKey(entry.repo_path.as_ref().clone()), ())
5051                    {
5052                        if ops.staging() || ops.staged() {
5053                            None
5054                        } else {
5055                            Some(entry.repo_path)
5056                        }
5057                    } else if entry.status.staging().is_fully_staged() {
5058                        None
5059                    } else {
5060                        Some(entry.repo_path)
5061                    }
5062                })
5063                .collect()
5064        });
5065
5066        cx.spawn(async move |this, cx| {
5067            let to_stage = to_stage.await;
5068            this.update(cx, |this, cx| {
5069                this.stage_or_unstage_entries(true, to_stage, cx)
5070            })?
5071            .await
5072        })
5073    }
5074
5075    pub fn unstage_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
5076        let snapshot = self.snapshot.clone();
5077        let pending_ops = self.pending_ops.clone();
5078        let to_unstage = cx.background_spawn(async move {
5079            snapshot
5080                .status()
5081                .filter_map(|entry| {
5082                    if let Some(ops) =
5083                        pending_ops.get(&PathKey(entry.repo_path.as_ref().clone()), ())
5084                    {
5085                        if !ops.staging() && !ops.staged() {
5086                            None
5087                        } else {
5088                            Some(entry.repo_path)
5089                        }
5090                    } else if entry.status.staging().is_fully_unstaged() {
5091                        None
5092                    } else {
5093                        Some(entry.repo_path)
5094                    }
5095                })
5096                .collect()
5097        });
5098
5099        cx.spawn(async move |this, cx| {
5100            let to_unstage = to_unstage.await;
5101            this.update(cx, |this, cx| {
5102                this.stage_or_unstage_entries(false, to_unstage, cx)
5103            })?
5104            .await
5105        })
5106    }
5107
5108    pub fn stash_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
5109        let to_stash = self.cached_status().map(|entry| entry.repo_path).collect();
5110
5111        self.stash_entries(to_stash, cx)
5112    }
5113
5114    pub fn stash_entries(
5115        &mut self,
5116        entries: Vec<RepoPath>,
5117        cx: &mut Context<Self>,
5118    ) -> Task<anyhow::Result<()>> {
5119        let id = self.id;
5120
5121        cx.spawn(async move |this, cx| {
5122            this.update(cx, |this, _| {
5123                this.send_job(None, move |git_repo, _cx| async move {
5124                    match git_repo {
5125                        RepositoryState::Local(LocalRepositoryState {
5126                            backend,
5127                            environment,
5128                            ..
5129                        }) => backend.stash_paths(entries, environment).await,
5130                        RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5131                            client
5132                                .request(proto::Stash {
5133                                    project_id: project_id.0,
5134                                    repository_id: id.to_proto(),
5135                                    paths: entries
5136                                        .into_iter()
5137                                        .map(|repo_path| repo_path.to_proto())
5138                                        .collect(),
5139                                })
5140                                .await?;
5141                            Ok(())
5142                        }
5143                    }
5144                })
5145            })?
5146            .await??;
5147            Ok(())
5148        })
5149    }
5150
5151    pub fn stash_pop(
5152        &mut self,
5153        index: Option<usize>,
5154        cx: &mut Context<Self>,
5155    ) -> Task<anyhow::Result<()>> {
5156        let id = self.id;
5157        cx.spawn(async move |this, cx| {
5158            this.update(cx, |this, _| {
5159                this.send_job(None, move |git_repo, _cx| async move {
5160                    match git_repo {
5161                        RepositoryState::Local(LocalRepositoryState {
5162                            backend,
5163                            environment,
5164                            ..
5165                        }) => backend.stash_pop(index, environment).await,
5166                        RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5167                            client
5168                                .request(proto::StashPop {
5169                                    project_id: project_id.0,
5170                                    repository_id: id.to_proto(),
5171                                    stash_index: index.map(|i| i as u64),
5172                                })
5173                                .await
5174                                .context("sending stash pop request")?;
5175                            Ok(())
5176                        }
5177                    }
5178                })
5179            })?
5180            .await??;
5181            Ok(())
5182        })
5183    }
5184
5185    pub fn stash_apply(
5186        &mut self,
5187        index: Option<usize>,
5188        cx: &mut Context<Self>,
5189    ) -> Task<anyhow::Result<()>> {
5190        let id = self.id;
5191        cx.spawn(async move |this, cx| {
5192            this.update(cx, |this, _| {
5193                this.send_job(None, move |git_repo, _cx| async move {
5194                    match git_repo {
5195                        RepositoryState::Local(LocalRepositoryState {
5196                            backend,
5197                            environment,
5198                            ..
5199                        }) => backend.stash_apply(index, environment).await,
5200                        RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5201                            client
5202                                .request(proto::StashApply {
5203                                    project_id: project_id.0,
5204                                    repository_id: id.to_proto(),
5205                                    stash_index: index.map(|i| i as u64),
5206                                })
5207                                .await
5208                                .context("sending stash apply request")?;
5209                            Ok(())
5210                        }
5211                    }
5212                })
5213            })?
5214            .await??;
5215            Ok(())
5216        })
5217    }
5218
5219    pub fn stash_drop(
5220        &mut self,
5221        index: Option<usize>,
5222        cx: &mut Context<Self>,
5223    ) -> oneshot::Receiver<anyhow::Result<()>> {
5224        let id = self.id;
5225        let updates_tx = self
5226            .git_store()
5227            .and_then(|git_store| match &git_store.read(cx).state {
5228                GitStoreState::Local { downstream, .. } => downstream
5229                    .as_ref()
5230                    .map(|downstream| downstream.updates_tx.clone()),
5231                _ => None,
5232            });
5233        let this = cx.weak_entity();
5234        self.send_job(None, move |git_repo, mut cx| async move {
5235            match git_repo {
5236                RepositoryState::Local(LocalRepositoryState {
5237                    backend,
5238                    environment,
5239                    ..
5240                }) => {
5241                    // TODO would be nice to not have to do this manually
5242                    let result = backend.stash_drop(index, environment).await;
5243                    if result.is_ok()
5244                        && let Ok(stash_entries) = backend.stash_entries().await
5245                    {
5246                        let snapshot = this.update(&mut cx, |this, cx| {
5247                            this.snapshot.stash_entries = stash_entries;
5248                            cx.emit(RepositoryEvent::StashEntriesChanged);
5249                            this.snapshot.clone()
5250                        })?;
5251                        if let Some(updates_tx) = updates_tx {
5252                            updates_tx
5253                                .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
5254                                .ok();
5255                        }
5256                    }
5257
5258                    result
5259                }
5260                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5261                    client
5262                        .request(proto::StashDrop {
5263                            project_id: project_id.0,
5264                            repository_id: id.to_proto(),
5265                            stash_index: index.map(|i| i as u64),
5266                        })
5267                        .await
5268                        .context("sending stash pop request")?;
5269                    Ok(())
5270                }
5271            }
5272        })
5273    }
5274
5275    pub fn run_hook(&mut self, hook: RunHook, _cx: &mut App) -> oneshot::Receiver<Result<()>> {
5276        let id = self.id;
5277        self.send_job(
5278            Some(format!("git hook {}", hook.as_str()).into()),
5279            move |git_repo, _cx| async move {
5280                match git_repo {
5281                    RepositoryState::Local(LocalRepositoryState {
5282                        backend,
5283                        environment,
5284                        ..
5285                    }) => backend.run_hook(hook, environment.clone()).await,
5286                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5287                        client
5288                            .request(proto::RunGitHook {
5289                                project_id: project_id.0,
5290                                repository_id: id.to_proto(),
5291                                hook: hook.to_proto(),
5292                            })
5293                            .await?;
5294
5295                        Ok(())
5296                    }
5297                }
5298            },
5299        )
5300    }
5301
5302    pub fn commit(
5303        &mut self,
5304        message: SharedString,
5305        name_and_email: Option<(SharedString, SharedString)>,
5306        options: CommitOptions,
5307        askpass: AskPassDelegate,
5308        cx: &mut App,
5309    ) -> oneshot::Receiver<Result<()>> {
5310        let id = self.id;
5311        let askpass_delegates = self.askpass_delegates.clone();
5312        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5313
5314        let rx = self.run_hook(RunHook::PreCommit, cx);
5315
5316        self.send_job(Some("git commit".into()), move |git_repo, _cx| async move {
5317            rx.await??;
5318
5319            match git_repo {
5320                RepositoryState::Local(LocalRepositoryState {
5321                    backend,
5322                    environment,
5323                    ..
5324                }) => {
5325                    backend
5326                        .commit(message, name_and_email, options, askpass, environment)
5327                        .await
5328                }
5329                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5330                    askpass_delegates.lock().insert(askpass_id, askpass);
5331                    let _defer = util::defer(|| {
5332                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5333                        debug_assert!(askpass_delegate.is_some());
5334                    });
5335                    let (name, email) = name_and_email.unzip();
5336                    client
5337                        .request(proto::Commit {
5338                            project_id: project_id.0,
5339                            repository_id: id.to_proto(),
5340                            message: String::from(message),
5341                            name: name.map(String::from),
5342                            email: email.map(String::from),
5343                            options: Some(proto::commit::CommitOptions {
5344                                amend: options.amend,
5345                                signoff: options.signoff,
5346                            }),
5347                            askpass_id,
5348                        })
5349                        .await?;
5350
5351                    Ok(())
5352                }
5353            }
5354        })
5355    }
5356
5357    pub fn fetch(
5358        &mut self,
5359        fetch_options: FetchOptions,
5360        askpass: AskPassDelegate,
5361        _cx: &mut App,
5362    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
5363        let askpass_delegates = self.askpass_delegates.clone();
5364        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5365        let id = self.id;
5366
5367        self.send_job(Some("git fetch".into()), move |git_repo, cx| async move {
5368            match git_repo {
5369                RepositoryState::Local(LocalRepositoryState {
5370                    backend,
5371                    environment,
5372                    ..
5373                }) => backend.fetch(fetch_options, askpass, environment, cx).await,
5374                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5375                    askpass_delegates.lock().insert(askpass_id, askpass);
5376                    let _defer = util::defer(|| {
5377                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5378                        debug_assert!(askpass_delegate.is_some());
5379                    });
5380
5381                    let response = client
5382                        .request(proto::Fetch {
5383                            project_id: project_id.0,
5384                            repository_id: id.to_proto(),
5385                            askpass_id,
5386                            remote: fetch_options.to_proto(),
5387                        })
5388                        .await?;
5389
5390                    Ok(RemoteCommandOutput {
5391                        stdout: response.stdout,
5392                        stderr: response.stderr,
5393                    })
5394                }
5395            }
5396        })
5397    }
5398
5399    pub fn push(
5400        &mut self,
5401        branch: SharedString,
5402        remote_branch: SharedString,
5403        remote: SharedString,
5404        options: Option<PushOptions>,
5405        askpass: AskPassDelegate,
5406        cx: &mut Context<Self>,
5407    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
5408        let askpass_delegates = self.askpass_delegates.clone();
5409        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5410        let id = self.id;
5411
5412        let args = options
5413            .map(|option| match option {
5414                PushOptions::SetUpstream => " --set-upstream",
5415                PushOptions::Force => " --force-with-lease",
5416            })
5417            .unwrap_or("");
5418
5419        let updates_tx = self
5420            .git_store()
5421            .and_then(|git_store| match &git_store.read(cx).state {
5422                GitStoreState::Local { downstream, .. } => downstream
5423                    .as_ref()
5424                    .map(|downstream| downstream.updates_tx.clone()),
5425                _ => None,
5426            });
5427
5428        let this = cx.weak_entity();
5429        self.send_job(
5430            Some(format!("git push {} {} {}:{}", args, remote, branch, remote_branch).into()),
5431            move |git_repo, mut cx| async move {
5432                match git_repo {
5433                    RepositoryState::Local(LocalRepositoryState {
5434                        backend,
5435                        environment,
5436                        ..
5437                    }) => {
5438                        let result = backend
5439                            .push(
5440                                branch.to_string(),
5441                                remote_branch.to_string(),
5442                                remote.to_string(),
5443                                options,
5444                                askpass,
5445                                environment.clone(),
5446                                cx.clone(),
5447                            )
5448                            .await;
5449                        // TODO would be nice to not have to do this manually
5450                        if result.is_ok() {
5451                            let branches = backend.branches().await?;
5452                            let branch = branches.into_iter().find(|branch| branch.is_head);
5453                            log::info!("head branch after scan is {branch:?}");
5454                            let snapshot = this.update(&mut cx, |this, cx| {
5455                                this.snapshot.branch = branch;
5456                                cx.emit(RepositoryEvent::BranchChanged);
5457                                this.snapshot.clone()
5458                            })?;
5459                            if let Some(updates_tx) = updates_tx {
5460                                updates_tx
5461                                    .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
5462                                    .ok();
5463                            }
5464                        }
5465                        result
5466                    }
5467                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5468                        askpass_delegates.lock().insert(askpass_id, askpass);
5469                        let _defer = util::defer(|| {
5470                            let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5471                            debug_assert!(askpass_delegate.is_some());
5472                        });
5473                        let response = client
5474                            .request(proto::Push {
5475                                project_id: project_id.0,
5476                                repository_id: id.to_proto(),
5477                                askpass_id,
5478                                branch_name: branch.to_string(),
5479                                remote_branch_name: remote_branch.to_string(),
5480                                remote_name: remote.to_string(),
5481                                options: options.map(|options| match options {
5482                                    PushOptions::Force => proto::push::PushOptions::Force,
5483                                    PushOptions::SetUpstream => {
5484                                        proto::push::PushOptions::SetUpstream
5485                                    }
5486                                }
5487                                    as i32),
5488                            })
5489                            .await?;
5490
5491                        Ok(RemoteCommandOutput {
5492                            stdout: response.stdout,
5493                            stderr: response.stderr,
5494                        })
5495                    }
5496                }
5497            },
5498        )
5499    }
5500
5501    pub fn pull(
5502        &mut self,
5503        branch: Option<SharedString>,
5504        remote: SharedString,
5505        rebase: bool,
5506        askpass: AskPassDelegate,
5507        _cx: &mut App,
5508    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
5509        let askpass_delegates = self.askpass_delegates.clone();
5510        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5511        let id = self.id;
5512
5513        let mut status = "git pull".to_string();
5514        if rebase {
5515            status.push_str(" --rebase");
5516        }
5517        status.push_str(&format!(" {}", remote));
5518        if let Some(b) = &branch {
5519            status.push_str(&format!(" {}", b));
5520        }
5521
5522        self.send_job(Some(status.into()), move |git_repo, cx| async move {
5523            match git_repo {
5524                RepositoryState::Local(LocalRepositoryState {
5525                    backend,
5526                    environment,
5527                    ..
5528                }) => {
5529                    backend
5530                        .pull(
5531                            branch.as_ref().map(|b| b.to_string()),
5532                            remote.to_string(),
5533                            rebase,
5534                            askpass,
5535                            environment.clone(),
5536                            cx,
5537                        )
5538                        .await
5539                }
5540                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5541                    askpass_delegates.lock().insert(askpass_id, askpass);
5542                    let _defer = util::defer(|| {
5543                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5544                        debug_assert!(askpass_delegate.is_some());
5545                    });
5546                    let response = client
5547                        .request(proto::Pull {
5548                            project_id: project_id.0,
5549                            repository_id: id.to_proto(),
5550                            askpass_id,
5551                            rebase,
5552                            branch_name: branch.as_ref().map(|b| b.to_string()),
5553                            remote_name: remote.to_string(),
5554                        })
5555                        .await?;
5556
5557                    Ok(RemoteCommandOutput {
5558                        stdout: response.stdout,
5559                        stderr: response.stderr,
5560                    })
5561                }
5562            }
5563        })
5564    }
5565
5566    fn spawn_set_index_text_job(
5567        &mut self,
5568        path: RepoPath,
5569        content: Option<String>,
5570        hunk_staging_operation_count: Option<usize>,
5571        cx: &mut Context<Self>,
5572    ) -> oneshot::Receiver<anyhow::Result<()>> {
5573        let id = self.id;
5574        let this = cx.weak_entity();
5575        let git_store = self.git_store.clone();
5576        let abs_path = self.snapshot.repo_path_to_abs_path(&path);
5577        self.send_keyed_job(
5578            Some(GitJobKey::WriteIndex(vec![path.clone()])),
5579            None,
5580            move |git_repo, mut cx| async move {
5581                log::debug!(
5582                    "start updating index text for buffer {}",
5583                    path.as_unix_str()
5584                );
5585
5586                match git_repo {
5587                    RepositoryState::Local(LocalRepositoryState {
5588                        fs,
5589                        backend,
5590                        environment,
5591                        ..
5592                    }) => {
5593                        let executable = match fs.metadata(&abs_path).await {
5594                            Ok(Some(meta)) => meta.is_executable,
5595                            Ok(None) => false,
5596                            Err(_err) => false,
5597                        };
5598                        backend
5599                            .set_index_text(path.clone(), content, environment.clone(), executable)
5600                            .await?;
5601                    }
5602                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5603                        client
5604                            .request(proto::SetIndexText {
5605                                project_id: project_id.0,
5606                                repository_id: id.to_proto(),
5607                                path: path.to_proto(),
5608                                text: content,
5609                            })
5610                            .await?;
5611                    }
5612                }
5613                log::debug!(
5614                    "finish updating index text for buffer {}",
5615                    path.as_unix_str()
5616                );
5617
5618                if let Some(hunk_staging_operation_count) = hunk_staging_operation_count {
5619                    let project_path = this
5620                        .read_with(&cx, |this, cx| this.repo_path_to_project_path(&path, cx))
5621                        .ok()
5622                        .flatten();
5623                    git_store
5624                        .update(&mut cx, |git_store, cx| {
5625                            let buffer_id = git_store
5626                                .buffer_store
5627                                .read(cx)
5628                                .get_by_path(&project_path?)?
5629                                .read(cx)
5630                                .remote_id();
5631                            let diff_state = git_store.diffs.get(&buffer_id)?;
5632                            diff_state.update(cx, |diff_state, _| {
5633                                diff_state.hunk_staging_operation_count_as_of_write =
5634                                    hunk_staging_operation_count;
5635                            });
5636                            Some(())
5637                        })
5638                        .context("Git store dropped")?;
5639                }
5640                Ok(())
5641            },
5642        )
5643    }
5644
5645    pub fn create_remote(
5646        &mut self,
5647        remote_name: String,
5648        remote_url: String,
5649    ) -> oneshot::Receiver<Result<()>> {
5650        let id = self.id;
5651        self.send_job(
5652            Some(format!("git remote add {remote_name} {remote_url}").into()),
5653            move |repo, _cx| async move {
5654                match repo {
5655                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5656                        backend.create_remote(remote_name, remote_url).await
5657                    }
5658                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5659                        client
5660                            .request(proto::GitCreateRemote {
5661                                project_id: project_id.0,
5662                                repository_id: id.to_proto(),
5663                                remote_name,
5664                                remote_url,
5665                            })
5666                            .await?;
5667
5668                        Ok(())
5669                    }
5670                }
5671            },
5672        )
5673    }
5674
5675    pub fn remove_remote(&mut self, remote_name: String) -> oneshot::Receiver<Result<()>> {
5676        let id = self.id;
5677        self.send_job(
5678            Some(format!("git remove remote {remote_name}").into()),
5679            move |repo, _cx| async move {
5680                match repo {
5681                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5682                        backend.remove_remote(remote_name).await
5683                    }
5684                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5685                        client
5686                            .request(proto::GitRemoveRemote {
5687                                project_id: project_id.0,
5688                                repository_id: id.to_proto(),
5689                                remote_name,
5690                            })
5691                            .await?;
5692
5693                        Ok(())
5694                    }
5695                }
5696            },
5697        )
5698    }
5699
5700    pub fn get_remotes(
5701        &mut self,
5702        branch_name: Option<String>,
5703        is_push: bool,
5704    ) -> oneshot::Receiver<Result<Vec<Remote>>> {
5705        let id = self.id;
5706        self.send_job(None, move |repo, _cx| async move {
5707            match repo {
5708                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5709                    let remote = if let Some(branch_name) = branch_name {
5710                        if is_push {
5711                            backend.get_push_remote(branch_name).await?
5712                        } else {
5713                            backend.get_branch_remote(branch_name).await?
5714                        }
5715                    } else {
5716                        None
5717                    };
5718
5719                    match remote {
5720                        Some(remote) => Ok(vec![remote]),
5721                        None => backend.get_all_remotes().await,
5722                    }
5723                }
5724                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5725                    let response = client
5726                        .request(proto::GetRemotes {
5727                            project_id: project_id.0,
5728                            repository_id: id.to_proto(),
5729                            branch_name,
5730                            is_push,
5731                        })
5732                        .await?;
5733
5734                    let remotes = response
5735                        .remotes
5736                        .into_iter()
5737                        .map(|remotes| Remote {
5738                            name: remotes.name.into(),
5739                        })
5740                        .collect();
5741
5742                    Ok(remotes)
5743                }
5744            }
5745        })
5746    }
5747
5748    pub fn branches(&mut self) -> oneshot::Receiver<Result<Vec<Branch>>> {
5749        let id = self.id;
5750        self.send_job(None, move |repo, _| async move {
5751            match repo {
5752                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5753                    backend.branches().await
5754                }
5755                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5756                    let response = client
5757                        .request(proto::GitGetBranches {
5758                            project_id: project_id.0,
5759                            repository_id: id.to_proto(),
5760                        })
5761                        .await?;
5762
5763                    let branches = response
5764                        .branches
5765                        .into_iter()
5766                        .map(|branch| proto_to_branch(&branch))
5767                        .collect();
5768
5769                    Ok(branches)
5770                }
5771            }
5772        })
5773    }
5774
5775    /// If this is a linked worktree (*NOT* the main checkout of a repository),
5776    /// returns the pathed for the linked worktree.
5777    ///
5778    /// Returns None if this is the main checkout.
5779    pub fn linked_worktree_path(&self) -> Option<&Arc<Path>> {
5780        if self.work_directory_abs_path != self.original_repo_abs_path {
5781            Some(&self.work_directory_abs_path)
5782        } else {
5783            None
5784        }
5785    }
5786
5787    pub fn path_for_new_linked_worktree(
5788        &self,
5789        branch_name: &str,
5790        worktree_directory_setting: &str,
5791    ) -> Result<PathBuf> {
5792        let original_repo = self.original_repo_abs_path.clone();
5793        let project_name = original_repo
5794            .file_name()
5795            .ok_or_else(|| anyhow!("git repo must have a directory name"))?;
5796        let directory = worktrees_directory_for_repo(&original_repo, worktree_directory_setting)?;
5797        Ok(directory.join(branch_name).join(project_name))
5798    }
5799
5800    pub fn worktrees(&mut self) -> oneshot::Receiver<Result<Vec<GitWorktree>>> {
5801        let id = self.id;
5802        self.send_job(None, move |repo, _| async move {
5803            match repo {
5804                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5805                    backend.worktrees().await
5806                }
5807                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5808                    let response = client
5809                        .request(proto::GitGetWorktrees {
5810                            project_id: project_id.0,
5811                            repository_id: id.to_proto(),
5812                        })
5813                        .await?;
5814
5815                    let worktrees = response
5816                        .worktrees
5817                        .into_iter()
5818                        .map(|worktree| proto_to_worktree(&worktree))
5819                        .collect();
5820
5821                    Ok(worktrees)
5822                }
5823            }
5824        })
5825    }
5826
5827    pub fn create_worktree(
5828        &mut self,
5829        branch_name: String,
5830        path: PathBuf,
5831        commit: Option<String>,
5832    ) -> oneshot::Receiver<Result<()>> {
5833        let id = self.id;
5834        self.send_job(
5835            Some(format!("git worktree add: {}", branch_name).into()),
5836            move |repo, _cx| async move {
5837                match repo {
5838                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5839                        backend.create_worktree(branch_name, path, commit).await
5840                    }
5841                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5842                        client
5843                            .request(proto::GitCreateWorktree {
5844                                project_id: project_id.0,
5845                                repository_id: id.to_proto(),
5846                                name: branch_name,
5847                                directory: path.to_string_lossy().to_string(),
5848                                commit,
5849                            })
5850                            .await?;
5851
5852                        Ok(())
5853                    }
5854                }
5855            },
5856        )
5857    }
5858
5859    pub fn remove_worktree(&mut self, path: PathBuf, force: bool) -> oneshot::Receiver<Result<()>> {
5860        let id = self.id;
5861        self.send_job(
5862            Some(format!("git worktree remove: {}", path.display()).into()),
5863            move |repo, _cx| async move {
5864                match repo {
5865                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5866                        backend.remove_worktree(path, force).await
5867                    }
5868                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5869                        client
5870                            .request(proto::GitRemoveWorktree {
5871                                project_id: project_id.0,
5872                                repository_id: id.to_proto(),
5873                                path: path.to_string_lossy().to_string(),
5874                                force,
5875                            })
5876                            .await?;
5877
5878                        Ok(())
5879                    }
5880                }
5881            },
5882        )
5883    }
5884
5885    pub fn rename_worktree(
5886        &mut self,
5887        old_path: PathBuf,
5888        new_path: PathBuf,
5889    ) -> oneshot::Receiver<Result<()>> {
5890        let id = self.id;
5891        self.send_job(
5892            Some(format!("git worktree move: {}", old_path.display()).into()),
5893            move |repo, _cx| async move {
5894                match repo {
5895                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5896                        backend.rename_worktree(old_path, new_path).await
5897                    }
5898                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5899                        client
5900                            .request(proto::GitRenameWorktree {
5901                                project_id: project_id.0,
5902                                repository_id: id.to_proto(),
5903                                old_path: old_path.to_string_lossy().to_string(),
5904                                new_path: new_path.to_string_lossy().to_string(),
5905                            })
5906                            .await?;
5907
5908                        Ok(())
5909                    }
5910                }
5911            },
5912        )
5913    }
5914
5915    pub fn default_branch(
5916        &mut self,
5917        include_remote_name: bool,
5918    ) -> oneshot::Receiver<Result<Option<SharedString>>> {
5919        let id = self.id;
5920        self.send_job(None, move |repo, _| async move {
5921            match repo {
5922                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5923                    backend.default_branch(include_remote_name).await
5924                }
5925                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5926                    let response = client
5927                        .request(proto::GetDefaultBranch {
5928                            project_id: project_id.0,
5929                            repository_id: id.to_proto(),
5930                        })
5931                        .await?;
5932
5933                    anyhow::Ok(response.branch.map(SharedString::from))
5934                }
5935            }
5936        })
5937    }
5938
5939    pub fn diff_tree(
5940        &mut self,
5941        diff_type: DiffTreeType,
5942        _cx: &App,
5943    ) -> oneshot::Receiver<Result<TreeDiff>> {
5944        let repository_id = self.snapshot.id;
5945        self.send_job(None, move |repo, _cx| async move {
5946            match repo {
5947                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5948                    backend.diff_tree(diff_type).await
5949                }
5950                RepositoryState::Remote(RemoteRepositoryState { client, project_id }) => {
5951                    let response = client
5952                        .request(proto::GetTreeDiff {
5953                            project_id: project_id.0,
5954                            repository_id: repository_id.0,
5955                            is_merge: matches!(diff_type, DiffTreeType::MergeBase { .. }),
5956                            base: diff_type.base().to_string(),
5957                            head: diff_type.head().to_string(),
5958                        })
5959                        .await?;
5960
5961                    let entries = response
5962                        .entries
5963                        .into_iter()
5964                        .filter_map(|entry| {
5965                            let status = match entry.status() {
5966                                proto::tree_diff_status::Status::Added => TreeDiffStatus::Added,
5967                                proto::tree_diff_status::Status::Modified => {
5968                                    TreeDiffStatus::Modified {
5969                                        old: git::Oid::from_str(
5970                                            &entry.oid.context("missing oid").log_err()?,
5971                                        )
5972                                        .log_err()?,
5973                                    }
5974                                }
5975                                proto::tree_diff_status::Status::Deleted => {
5976                                    TreeDiffStatus::Deleted {
5977                                        old: git::Oid::from_str(
5978                                            &entry.oid.context("missing oid").log_err()?,
5979                                        )
5980                                        .log_err()?,
5981                                    }
5982                                }
5983                            };
5984                            Some((
5985                                RepoPath::from_rel_path(
5986                                    &RelPath::from_proto(&entry.path).log_err()?,
5987                                ),
5988                                status,
5989                            ))
5990                        })
5991                        .collect();
5992
5993                    Ok(TreeDiff { entries })
5994                }
5995            }
5996        })
5997    }
5998
5999    pub fn diff(&mut self, diff_type: DiffType, _cx: &App) -> oneshot::Receiver<Result<String>> {
6000        let id = self.id;
6001        self.send_job(None, move |repo, _cx| async move {
6002            match repo {
6003                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6004                    backend.diff(diff_type).await
6005                }
6006                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6007                    let (proto_diff_type, merge_base_ref) = match &diff_type {
6008                        DiffType::HeadToIndex => {
6009                            (proto::git_diff::DiffType::HeadToIndex.into(), None)
6010                        }
6011                        DiffType::HeadToWorktree => {
6012                            (proto::git_diff::DiffType::HeadToWorktree.into(), None)
6013                        }
6014                        DiffType::MergeBase { base_ref } => (
6015                            proto::git_diff::DiffType::MergeBase.into(),
6016                            Some(base_ref.to_string()),
6017                        ),
6018                    };
6019                    let response = client
6020                        .request(proto::GitDiff {
6021                            project_id: project_id.0,
6022                            repository_id: id.to_proto(),
6023                            diff_type: proto_diff_type,
6024                            merge_base_ref,
6025                        })
6026                        .await?;
6027
6028                    Ok(response.diff)
6029                }
6030            }
6031        })
6032    }
6033
6034    pub fn create_branch(
6035        &mut self,
6036        branch_name: String,
6037        base_branch: Option<String>,
6038    ) -> oneshot::Receiver<Result<()>> {
6039        let id = self.id;
6040        let status_msg = if let Some(ref base) = base_branch {
6041            format!("git switch -c {branch_name} {base}").into()
6042        } else {
6043            format!("git switch -c {branch_name}").into()
6044        };
6045        self.send_job(Some(status_msg), move |repo, _cx| async move {
6046            match repo {
6047                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6048                    backend.create_branch(branch_name, base_branch).await
6049                }
6050                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6051                    client
6052                        .request(proto::GitCreateBranch {
6053                            project_id: project_id.0,
6054                            repository_id: id.to_proto(),
6055                            branch_name,
6056                        })
6057                        .await?;
6058
6059                    Ok(())
6060                }
6061            }
6062        })
6063    }
6064
6065    pub fn change_branch(&mut self, branch_name: String) -> oneshot::Receiver<Result<()>> {
6066        let id = self.id;
6067        self.send_job(
6068            Some(format!("git switch {branch_name}").into()),
6069            move |repo, _cx| async move {
6070                match repo {
6071                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6072                        backend.change_branch(branch_name).await
6073                    }
6074                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6075                        client
6076                            .request(proto::GitChangeBranch {
6077                                project_id: project_id.0,
6078                                repository_id: id.to_proto(),
6079                                branch_name,
6080                            })
6081                            .await?;
6082
6083                        Ok(())
6084                    }
6085                }
6086            },
6087        )
6088    }
6089
6090    pub fn delete_branch(
6091        &mut self,
6092        is_remote: bool,
6093        branch_name: String,
6094    ) -> oneshot::Receiver<Result<()>> {
6095        let id = self.id;
6096        self.send_job(
6097            Some(
6098                format!(
6099                    "git branch {} {}",
6100                    if is_remote { "-dr" } else { "-d" },
6101                    branch_name
6102                )
6103                .into(),
6104            ),
6105            move |repo, _cx| async move {
6106                match repo {
6107                    RepositoryState::Local(state) => {
6108                        state.backend.delete_branch(is_remote, branch_name).await
6109                    }
6110                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6111                        client
6112                            .request(proto::GitDeleteBranch {
6113                                project_id: project_id.0,
6114                                repository_id: id.to_proto(),
6115                                is_remote,
6116                                branch_name,
6117                            })
6118                            .await?;
6119
6120                        Ok(())
6121                    }
6122                }
6123            },
6124        )
6125    }
6126
6127    pub fn rename_branch(
6128        &mut self,
6129        branch: String,
6130        new_name: String,
6131    ) -> oneshot::Receiver<Result<()>> {
6132        let id = self.id;
6133        self.send_job(
6134            Some(format!("git branch -m {branch} {new_name}").into()),
6135            move |repo, _cx| async move {
6136                match repo {
6137                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6138                        backend.rename_branch(branch, new_name).await
6139                    }
6140                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6141                        client
6142                            .request(proto::GitRenameBranch {
6143                                project_id: project_id.0,
6144                                repository_id: id.to_proto(),
6145                                branch,
6146                                new_name,
6147                            })
6148                            .await?;
6149
6150                        Ok(())
6151                    }
6152                }
6153            },
6154        )
6155    }
6156
6157    pub fn check_for_pushed_commits(&mut self) -> oneshot::Receiver<Result<Vec<SharedString>>> {
6158        let id = self.id;
6159        self.send_job(None, move |repo, _cx| async move {
6160            match repo {
6161                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6162                    backend.check_for_pushed_commit().await
6163                }
6164                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6165                    let response = client
6166                        .request(proto::CheckForPushedCommits {
6167                            project_id: project_id.0,
6168                            repository_id: id.to_proto(),
6169                        })
6170                        .await?;
6171
6172                    let branches = response.pushed_to.into_iter().map(Into::into).collect();
6173
6174                    Ok(branches)
6175                }
6176            }
6177        })
6178    }
6179
6180    pub fn checkpoint(&mut self) -> oneshot::Receiver<Result<GitRepositoryCheckpoint>> {
6181        self.send_job(None, |repo, _cx| async move {
6182            match repo {
6183                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6184                    backend.checkpoint().await
6185                }
6186                RepositoryState::Remote(..) => anyhow::bail!("not implemented yet"),
6187            }
6188        })
6189    }
6190
6191    pub fn restore_checkpoint(
6192        &mut self,
6193        checkpoint: GitRepositoryCheckpoint,
6194    ) -> oneshot::Receiver<Result<()>> {
6195        self.send_job(None, move |repo, _cx| async move {
6196            match repo {
6197                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6198                    backend.restore_checkpoint(checkpoint).await
6199                }
6200                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
6201            }
6202        })
6203    }
6204
6205    pub(crate) fn apply_remote_update(
6206        &mut self,
6207        update: proto::UpdateRepository,
6208        cx: &mut Context<Self>,
6209    ) -> Result<()> {
6210        if let Some(main_path) = &update.original_repo_abs_path {
6211            self.snapshot.original_repo_abs_path = Path::new(main_path.as_str()).into();
6212        }
6213
6214        let new_branch = update.branch_summary.as_ref().map(proto_to_branch);
6215        let new_head_commit = update
6216            .head_commit_details
6217            .as_ref()
6218            .map(proto_to_commit_details);
6219        if self.snapshot.branch != new_branch || self.snapshot.head_commit != new_head_commit {
6220            cx.emit(RepositoryEvent::BranchChanged)
6221        }
6222        self.snapshot.branch = new_branch;
6223        self.snapshot.head_commit = new_head_commit;
6224
6225        // We don't store any merge head state for downstream projects; the upstream
6226        // will track it and we will just get the updated conflicts
6227        let new_merge_heads = TreeMap::from_ordered_entries(
6228            update
6229                .current_merge_conflicts
6230                .into_iter()
6231                .filter_map(|path| Some((RepoPath::from_proto(&path).ok()?, vec![]))),
6232        );
6233        let conflicts_changed =
6234            self.snapshot.merge.merge_heads_by_conflicted_path != new_merge_heads;
6235        self.snapshot.merge.merge_heads_by_conflicted_path = new_merge_heads;
6236        self.snapshot.merge.message = update.merge_message.map(SharedString::from);
6237        let new_stash_entries = GitStash {
6238            entries: update
6239                .stash_entries
6240                .iter()
6241                .filter_map(|entry| proto_to_stash(entry).ok())
6242                .collect(),
6243        };
6244        if self.snapshot.stash_entries != new_stash_entries {
6245            cx.emit(RepositoryEvent::StashEntriesChanged)
6246        }
6247        self.snapshot.stash_entries = new_stash_entries;
6248        let new_linked_worktrees: Arc<[GitWorktree]> = update
6249            .linked_worktrees
6250            .iter()
6251            .map(proto_to_worktree)
6252            .collect();
6253        if *self.snapshot.linked_worktrees != *new_linked_worktrees {
6254            cx.emit(RepositoryEvent::GitWorktreeListChanged);
6255        }
6256        self.snapshot.linked_worktrees = new_linked_worktrees;
6257        self.snapshot.remote_upstream_url = update.remote_upstream_url;
6258        self.snapshot.remote_origin_url = update.remote_origin_url;
6259
6260        let edits = update
6261            .removed_statuses
6262            .into_iter()
6263            .filter_map(|path| {
6264                Some(sum_tree::Edit::Remove(PathKey(
6265                    RelPath::from_proto(&path).log_err()?,
6266                )))
6267            })
6268            .chain(
6269                update
6270                    .updated_statuses
6271                    .into_iter()
6272                    .filter_map(|updated_status| {
6273                        Some(sum_tree::Edit::Insert(updated_status.try_into().log_err()?))
6274                    }),
6275            )
6276            .collect::<Vec<_>>();
6277        if conflicts_changed || !edits.is_empty() {
6278            cx.emit(RepositoryEvent::StatusesChanged);
6279        }
6280        self.snapshot.statuses_by_path.edit(edits, ());
6281
6282        if update.is_last_update {
6283            self.snapshot.scan_id = update.scan_id;
6284        }
6285        self.clear_pending_ops(cx);
6286        Ok(())
6287    }
6288
6289    pub fn compare_checkpoints(
6290        &mut self,
6291        left: GitRepositoryCheckpoint,
6292        right: GitRepositoryCheckpoint,
6293    ) -> oneshot::Receiver<Result<bool>> {
6294        self.send_job(None, move |repo, _cx| async move {
6295            match repo {
6296                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6297                    backend.compare_checkpoints(left, right).await
6298                }
6299                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
6300            }
6301        })
6302    }
6303
6304    pub fn diff_checkpoints(
6305        &mut self,
6306        base_checkpoint: GitRepositoryCheckpoint,
6307        target_checkpoint: GitRepositoryCheckpoint,
6308    ) -> oneshot::Receiver<Result<String>> {
6309        self.send_job(None, move |repo, _cx| async move {
6310            match repo {
6311                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6312                    backend
6313                        .diff_checkpoints(base_checkpoint, target_checkpoint)
6314                        .await
6315                }
6316                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
6317            }
6318        })
6319    }
6320
6321    fn clear_pending_ops(&mut self, cx: &mut Context<Self>) {
6322        let updated = SumTree::from_iter(
6323            self.pending_ops.iter().filter_map(|ops| {
6324                let inner_ops: Vec<PendingOp> =
6325                    ops.ops.iter().filter(|op| op.running()).cloned().collect();
6326                if inner_ops.is_empty() {
6327                    None
6328                } else {
6329                    Some(PendingOps {
6330                        repo_path: ops.repo_path.clone(),
6331                        ops: inner_ops,
6332                    })
6333                }
6334            }),
6335            (),
6336        );
6337
6338        if updated != self.pending_ops {
6339            cx.emit(RepositoryEvent::PendingOpsChanged {
6340                pending_ops: self.pending_ops.clone(),
6341            })
6342        }
6343
6344        self.pending_ops = updated;
6345    }
6346
6347    fn schedule_scan(
6348        &mut self,
6349        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
6350        cx: &mut Context<Self>,
6351    ) {
6352        let this = cx.weak_entity();
6353        let _ = self.send_keyed_job(
6354            Some(GitJobKey::ReloadGitState),
6355            None,
6356            |state, mut cx| async move {
6357                log::debug!("run scheduled git status scan");
6358
6359                let Some(this) = this.upgrade() else {
6360                    return Ok(());
6361                };
6362                let RepositoryState::Local(LocalRepositoryState { backend, .. }) = state else {
6363                    bail!("not a local repository")
6364                };
6365                let snapshot = compute_snapshot(this.clone(), backend.clone(), &mut cx).await?;
6366                this.update(&mut cx, |this, cx| {
6367                    this.clear_pending_ops(cx);
6368                });
6369                if let Some(updates_tx) = updates_tx {
6370                    updates_tx
6371                        .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
6372                        .ok();
6373                }
6374                Ok(())
6375            },
6376        );
6377    }
6378
6379    fn spawn_local_git_worker(
6380        state: Shared<Task<Result<LocalRepositoryState, String>>>,
6381        cx: &mut Context<Self>,
6382    ) -> mpsc::UnboundedSender<GitJob> {
6383        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
6384
6385        cx.spawn(async move |_, cx| {
6386            let state = state.await.map_err(|err| anyhow::anyhow!(err))?;
6387            if let Some(git_hosting_provider_registry) =
6388                cx.update(|cx| GitHostingProviderRegistry::try_global(cx))
6389            {
6390                git_hosting_providers::register_additional_providers(
6391                    git_hosting_provider_registry,
6392                    state.backend.clone(),
6393                )
6394                .await;
6395            }
6396            let state = RepositoryState::Local(state);
6397            let mut jobs = VecDeque::new();
6398            loop {
6399                while let Ok(Some(next_job)) = job_rx.try_next() {
6400                    jobs.push_back(next_job);
6401                }
6402
6403                if let Some(job) = jobs.pop_front() {
6404                    if let Some(current_key) = &job.key
6405                        && jobs
6406                            .iter()
6407                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
6408                    {
6409                        continue;
6410                    }
6411                    (job.job)(state.clone(), cx).await;
6412                } else if let Some(job) = job_rx.next().await {
6413                    jobs.push_back(job);
6414                } else {
6415                    break;
6416                }
6417            }
6418            anyhow::Ok(())
6419        })
6420        .detach_and_log_err(cx);
6421
6422        job_tx
6423    }
6424
6425    fn spawn_remote_git_worker(
6426        state: RemoteRepositoryState,
6427        cx: &mut Context<Self>,
6428    ) -> mpsc::UnboundedSender<GitJob> {
6429        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
6430
6431        cx.spawn(async move |_, cx| {
6432            let state = RepositoryState::Remote(state);
6433            let mut jobs = VecDeque::new();
6434            loop {
6435                while let Ok(Some(next_job)) = job_rx.try_next() {
6436                    jobs.push_back(next_job);
6437                }
6438
6439                if let Some(job) = jobs.pop_front() {
6440                    if let Some(current_key) = &job.key
6441                        && jobs
6442                            .iter()
6443                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
6444                    {
6445                        continue;
6446                    }
6447                    (job.job)(state.clone(), cx).await;
6448                } else if let Some(job) = job_rx.next().await {
6449                    jobs.push_back(job);
6450                } else {
6451                    break;
6452                }
6453            }
6454            anyhow::Ok(())
6455        })
6456        .detach_and_log_err(cx);
6457
6458        job_tx
6459    }
6460
6461    fn load_staged_text(
6462        &mut self,
6463        buffer_id: BufferId,
6464        repo_path: RepoPath,
6465        cx: &App,
6466    ) -> Task<Result<Option<String>>> {
6467        let rx = self.send_job(None, move |state, _| async move {
6468            match state {
6469                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6470                    anyhow::Ok(backend.load_index_text(repo_path).await)
6471                }
6472                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6473                    let response = client
6474                        .request(proto::OpenUnstagedDiff {
6475                            project_id: project_id.to_proto(),
6476                            buffer_id: buffer_id.to_proto(),
6477                        })
6478                        .await?;
6479                    Ok(response.staged_text)
6480                }
6481            }
6482        });
6483        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
6484    }
6485
6486    fn load_committed_text(
6487        &mut self,
6488        buffer_id: BufferId,
6489        repo_path: RepoPath,
6490        cx: &App,
6491    ) -> Task<Result<DiffBasesChange>> {
6492        let rx = self.send_job(None, move |state, _| async move {
6493            match state {
6494                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6495                    let committed_text = backend.load_committed_text(repo_path.clone()).await;
6496                    let staged_text = backend.load_index_text(repo_path).await;
6497                    let diff_bases_change = if committed_text == staged_text {
6498                        DiffBasesChange::SetBoth(committed_text)
6499                    } else {
6500                        DiffBasesChange::SetEach {
6501                            index: staged_text,
6502                            head: committed_text,
6503                        }
6504                    };
6505                    anyhow::Ok(diff_bases_change)
6506                }
6507                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6508                    use proto::open_uncommitted_diff_response::Mode;
6509
6510                    let response = client
6511                        .request(proto::OpenUncommittedDiff {
6512                            project_id: project_id.to_proto(),
6513                            buffer_id: buffer_id.to_proto(),
6514                        })
6515                        .await?;
6516                    let mode = Mode::from_i32(response.mode).context("Invalid mode")?;
6517                    let bases = match mode {
6518                        Mode::IndexMatchesHead => DiffBasesChange::SetBoth(response.committed_text),
6519                        Mode::IndexAndHead => DiffBasesChange::SetEach {
6520                            head: response.committed_text,
6521                            index: response.staged_text,
6522                        },
6523                    };
6524                    Ok(bases)
6525                }
6526            }
6527        });
6528
6529        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
6530    }
6531
6532    fn load_blob_content(&mut self, oid: Oid, cx: &App) -> Task<Result<String>> {
6533        let repository_id = self.snapshot.id;
6534        let rx = self.send_job(None, move |state, _| async move {
6535            match state {
6536                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6537                    backend.load_blob_content(oid).await
6538                }
6539                RepositoryState::Remote(RemoteRepositoryState { client, project_id }) => {
6540                    let response = client
6541                        .request(proto::GetBlobContent {
6542                            project_id: project_id.to_proto(),
6543                            repository_id: repository_id.0,
6544                            oid: oid.to_string(),
6545                        })
6546                        .await?;
6547                    Ok(response.content)
6548                }
6549            }
6550        });
6551        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
6552    }
6553
6554    fn paths_changed(
6555        &mut self,
6556        paths: Vec<RepoPath>,
6557        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
6558        cx: &mut Context<Self>,
6559    ) {
6560        if !paths.is_empty() {
6561            self.paths_needing_status_update.push(paths);
6562        }
6563
6564        let this = cx.weak_entity();
6565        let _ = self.send_keyed_job(
6566            Some(GitJobKey::RefreshStatuses),
6567            None,
6568            |state, mut cx| async move {
6569                let (prev_snapshot, changed_paths) = this.update(&mut cx, |this, _| {
6570                    (
6571                        this.snapshot.clone(),
6572                        mem::take(&mut this.paths_needing_status_update),
6573                    )
6574                })?;
6575                let RepositoryState::Local(LocalRepositoryState { backend, .. }) = state else {
6576                    bail!("not a local repository")
6577                };
6578
6579                if changed_paths.is_empty() {
6580                    return Ok(());
6581                }
6582
6583                let has_head = prev_snapshot.head_commit.is_some();
6584
6585                let stash_entries = backend.stash_entries().await?;
6586                let changed_path_statuses = cx
6587                    .background_spawn(async move {
6588                        let mut changed_paths =
6589                            changed_paths.into_iter().flatten().collect::<BTreeSet<_>>();
6590                        let changed_paths_vec = changed_paths.iter().cloned().collect::<Vec<_>>();
6591
6592                        let status_task = backend.status(&changed_paths_vec);
6593                        let diff_stat_future = if has_head {
6594                            backend.diff_stat(&changed_paths_vec)
6595                        } else {
6596                            future::ready(Ok(status::GitDiffStat {
6597                                entries: Arc::default(),
6598                            }))
6599                            .boxed()
6600                        };
6601
6602                        let (statuses, diff_stats) =
6603                            futures::future::try_join(status_task, diff_stat_future).await?;
6604
6605                        let diff_stats: HashMap<RepoPath, DiffStat> =
6606                            HashMap::from_iter(diff_stats.entries.into_iter().cloned());
6607
6608                        let mut changed_path_statuses = Vec::new();
6609                        let prev_statuses = prev_snapshot.statuses_by_path.clone();
6610                        let mut cursor = prev_statuses.cursor::<PathProgress>(());
6611
6612                        for (repo_path, status) in &*statuses.entries {
6613                            let current_diff_stat = diff_stats.get(repo_path).copied();
6614
6615                            changed_paths.remove(repo_path);
6616                            if cursor.seek_forward(&PathTarget::Path(repo_path), Bias::Left)
6617                                && cursor.item().is_some_and(|entry| {
6618                                    entry.status == *status && entry.diff_stat == current_diff_stat
6619                                })
6620                            {
6621                                continue;
6622                            }
6623
6624                            changed_path_statuses.push(Edit::Insert(StatusEntry {
6625                                repo_path: repo_path.clone(),
6626                                status: *status,
6627                                diff_stat: current_diff_stat,
6628                            }));
6629                        }
6630                        let mut cursor = prev_statuses.cursor::<PathProgress>(());
6631                        for path in changed_paths.into_iter() {
6632                            if cursor.seek_forward(&PathTarget::Path(&path), Bias::Left) {
6633                                changed_path_statuses
6634                                    .push(Edit::Remove(PathKey(path.as_ref().clone())));
6635                            }
6636                        }
6637                        anyhow::Ok(changed_path_statuses)
6638                    })
6639                    .await?;
6640
6641                this.update(&mut cx, |this, cx| {
6642                    if this.snapshot.stash_entries != stash_entries {
6643                        cx.emit(RepositoryEvent::StashEntriesChanged);
6644                        this.snapshot.stash_entries = stash_entries;
6645                    }
6646
6647                    if !changed_path_statuses.is_empty() {
6648                        cx.emit(RepositoryEvent::StatusesChanged);
6649                        this.snapshot
6650                            .statuses_by_path
6651                            .edit(changed_path_statuses, ());
6652                        this.snapshot.scan_id += 1;
6653                    }
6654
6655                    if let Some(updates_tx) = updates_tx {
6656                        updates_tx
6657                            .unbounded_send(DownstreamUpdate::UpdateRepository(
6658                                this.snapshot.clone(),
6659                            ))
6660                            .ok();
6661                    }
6662                })
6663            },
6664        );
6665    }
6666
6667    /// currently running git command and when it started
6668    pub fn current_job(&self) -> Option<JobInfo> {
6669        self.active_jobs.values().next().cloned()
6670    }
6671
6672    pub fn barrier(&mut self) -> oneshot::Receiver<()> {
6673        self.send_job(None, |_, _| async {})
6674    }
6675
6676    fn spawn_job_with_tracking<AsyncFn>(
6677        &mut self,
6678        paths: Vec<RepoPath>,
6679        git_status: pending_op::GitStatus,
6680        cx: &mut Context<Self>,
6681        f: AsyncFn,
6682    ) -> Task<Result<()>>
6683    where
6684        AsyncFn: AsyncFnOnce(WeakEntity<Repository>, &mut AsyncApp) -> Result<()> + 'static,
6685    {
6686        let ids = self.new_pending_ops_for_paths(paths, git_status);
6687
6688        cx.spawn(async move |this, cx| {
6689            let (job_status, result) = match f(this.clone(), cx).await {
6690                Ok(()) => (pending_op::JobStatus::Finished, Ok(())),
6691                Err(err) if err.is::<Canceled>() => (pending_op::JobStatus::Skipped, Ok(())),
6692                Err(err) => (pending_op::JobStatus::Error, Err(err)),
6693            };
6694
6695            this.update(cx, |this, _| {
6696                let mut edits = Vec::with_capacity(ids.len());
6697                for (id, entry) in ids {
6698                    if let Some(mut ops) = this
6699                        .pending_ops
6700                        .get(&PathKey(entry.as_ref().clone()), ())
6701                        .cloned()
6702                    {
6703                        if let Some(op) = ops.op_by_id_mut(id) {
6704                            op.job_status = job_status;
6705                        }
6706                        edits.push(sum_tree::Edit::Insert(ops));
6707                    }
6708                }
6709                this.pending_ops.edit(edits, ());
6710            })?;
6711
6712            result
6713        })
6714    }
6715
6716    fn new_pending_ops_for_paths(
6717        &mut self,
6718        paths: Vec<RepoPath>,
6719        git_status: pending_op::GitStatus,
6720    ) -> Vec<(PendingOpId, RepoPath)> {
6721        let mut edits = Vec::with_capacity(paths.len());
6722        let mut ids = Vec::with_capacity(paths.len());
6723        for path in paths {
6724            let mut ops = self
6725                .pending_ops
6726                .get(&PathKey(path.as_ref().clone()), ())
6727                .cloned()
6728                .unwrap_or_else(|| PendingOps::new(&path));
6729            let id = ops.max_id() + 1;
6730            ops.ops.push(PendingOp {
6731                id,
6732                git_status,
6733                job_status: pending_op::JobStatus::Running,
6734            });
6735            edits.push(sum_tree::Edit::Insert(ops));
6736            ids.push((id, path));
6737        }
6738        self.pending_ops.edit(edits, ());
6739        ids
6740    }
6741    pub fn default_remote_url(&self) -> Option<String> {
6742        self.remote_upstream_url
6743            .clone()
6744            .or(self.remote_origin_url.clone())
6745    }
6746}
6747
6748/// If `path` is a git linked worktree checkout, resolves it to the main
6749/// repository's working directory path. Returns `None` if `path` is a normal
6750/// repository, not a git repo, or if resolution fails.
6751///
6752/// Resolution works by:
6753/// 1. Reading the `.git` file to get the `gitdir:` pointer
6754/// 2. Following that to the worktree-specific git directory
6755/// 3. Reading the `commondir` file to find the shared `.git` directory
6756/// 4. Deriving the main repo's working directory from the common dir
6757pub async fn resolve_git_worktree_to_main_repo(fs: &dyn Fs, path: &Path) -> Option<PathBuf> {
6758    let dot_git = path.join(".git");
6759    let metadata = fs.metadata(&dot_git).await.ok()??;
6760    if metadata.is_dir {
6761        return None; // Normal repo, not a linked worktree
6762    }
6763    // It's a .git file — parse the gitdir: pointer
6764    let content = fs.load(&dot_git).await.ok()?;
6765    let gitdir_rel = content.strip_prefix("gitdir:")?.trim();
6766    let gitdir_abs = fs.canonicalize(&path.join(gitdir_rel)).await.ok()?;
6767    // Read commondir to find the main .git directory
6768    let commondir_content = fs.load(&gitdir_abs.join("commondir")).await.ok()?;
6769    let common_dir = fs
6770        .canonicalize(&gitdir_abs.join(commondir_content.trim()))
6771        .await
6772        .ok()?;
6773    Some(git::repository::original_repo_path_from_common_dir(
6774        &common_dir,
6775    ))
6776}
6777
6778/// Validates that the resolved worktree directory is acceptable:
6779/// - The setting must not be an absolute path.
6780/// - The resolved path must be either a subdirectory of the working
6781///   directory or a subdirectory of its parent (i.e., a sibling).
6782///
6783/// Returns `Ok(resolved_path)` or an error with a user-facing message.
6784pub fn worktrees_directory_for_repo(
6785    original_repo_abs_path: &Path,
6786    worktree_directory_setting: &str,
6787) -> Result<PathBuf> {
6788    // Check the original setting before trimming, since a path like "///"
6789    // is absolute but becomes "" after stripping trailing separators.
6790    // Also check for leading `/` or `\` explicitly, because on Windows
6791    // `Path::is_absolute()` requires a drive letter — so `/tmp/worktrees`
6792    // would slip through even though it's clearly not a relative path.
6793    if Path::new(worktree_directory_setting).is_absolute()
6794        || worktree_directory_setting.starts_with('/')
6795        || worktree_directory_setting.starts_with('\\')
6796    {
6797        anyhow::bail!(
6798            "git.worktree_directory must be a relative path, got: {worktree_directory_setting:?}"
6799        );
6800    }
6801
6802    if worktree_directory_setting.is_empty() {
6803        anyhow::bail!("git.worktree_directory must not be empty");
6804    }
6805
6806    let trimmed = worktree_directory_setting.trim_end_matches(['/', '\\']);
6807    if trimmed == ".." {
6808        anyhow::bail!("git.worktree_directory must not be \"..\" (use \"../some-name\" instead)");
6809    }
6810
6811    let joined = original_repo_abs_path.join(trimmed);
6812    let resolved = util::normalize_path(&joined);
6813    let resolved = if resolved.starts_with(original_repo_abs_path) {
6814        resolved
6815    } else if let Some(repo_dir_name) = original_repo_abs_path.file_name() {
6816        resolved.join(repo_dir_name)
6817    } else {
6818        resolved
6819    };
6820
6821    let parent = original_repo_abs_path
6822        .parent()
6823        .unwrap_or(original_repo_abs_path);
6824
6825    if !resolved.starts_with(parent) {
6826        anyhow::bail!(
6827            "git.worktree_directory resolved to {resolved:?}, which is outside \
6828             the project root and its parent directory. It must resolve to a \
6829             subdirectory of {original_repo_abs_path:?} or a sibling of it."
6830        );
6831    }
6832
6833    Ok(resolved)
6834}
6835
6836/// Returns a short name for a linked worktree suitable for UI display
6837///
6838/// Uses the main worktree path to come up with a short name that disambiguates
6839/// the linked worktree from the main worktree.
6840pub fn linked_worktree_short_name(
6841    main_worktree_path: &Path,
6842    linked_worktree_path: &Path,
6843) -> Option<SharedString> {
6844    if main_worktree_path == linked_worktree_path {
6845        return None;
6846    }
6847
6848    let project_name = main_worktree_path.file_name()?.to_str()?;
6849    let directory_name = linked_worktree_path.file_name()?.to_str()?;
6850    let name = if directory_name != project_name {
6851        directory_name.to_string()
6852    } else {
6853        linked_worktree_path
6854            .parent()?
6855            .file_name()?
6856            .to_str()?
6857            .to_string()
6858    };
6859    Some(name.into())
6860}
6861
6862fn get_permalink_in_rust_registry_src(
6863    provider_registry: Arc<GitHostingProviderRegistry>,
6864    path: PathBuf,
6865    selection: Range<u32>,
6866) -> Result<url::Url> {
6867    #[derive(Deserialize)]
6868    struct CargoVcsGit {
6869        sha1: String,
6870    }
6871
6872    #[derive(Deserialize)]
6873    struct CargoVcsInfo {
6874        git: CargoVcsGit,
6875        path_in_vcs: String,
6876    }
6877
6878    #[derive(Deserialize)]
6879    struct CargoPackage {
6880        repository: String,
6881    }
6882
6883    #[derive(Deserialize)]
6884    struct CargoToml {
6885        package: CargoPackage,
6886    }
6887
6888    let Some((dir, cargo_vcs_info_json)) = path.ancestors().skip(1).find_map(|dir| {
6889        let json = std::fs::read_to_string(dir.join(".cargo_vcs_info.json")).ok()?;
6890        Some((dir, json))
6891    }) else {
6892        bail!("No .cargo_vcs_info.json found in parent directories")
6893    };
6894    let cargo_vcs_info = serde_json::from_str::<CargoVcsInfo>(&cargo_vcs_info_json)?;
6895    let cargo_toml = std::fs::read_to_string(dir.join("Cargo.toml"))?;
6896    let manifest = toml::from_str::<CargoToml>(&cargo_toml)?;
6897    let (provider, remote) = parse_git_remote_url(provider_registry, &manifest.package.repository)
6898        .context("parsing package.repository field of manifest")?;
6899    let path = PathBuf::from(cargo_vcs_info.path_in_vcs).join(path.strip_prefix(dir).unwrap());
6900    let permalink = provider.build_permalink(
6901        remote,
6902        BuildPermalinkParams::new(
6903            &cargo_vcs_info.git.sha1,
6904            &RepoPath::from_rel_path(
6905                &RelPath::new(&path, PathStyle::local()).context("invalid path")?,
6906            ),
6907            Some(selection),
6908        ),
6909    );
6910    Ok(permalink)
6911}
6912
6913fn serialize_blame_buffer_response(blame: Option<git::blame::Blame>) -> proto::BlameBufferResponse {
6914    let Some(blame) = blame else {
6915        return proto::BlameBufferResponse {
6916            blame_response: None,
6917        };
6918    };
6919
6920    let entries = blame
6921        .entries
6922        .into_iter()
6923        .map(|entry| proto::BlameEntry {
6924            sha: entry.sha.as_bytes().into(),
6925            start_line: entry.range.start,
6926            end_line: entry.range.end,
6927            original_line_number: entry.original_line_number,
6928            author: entry.author,
6929            author_mail: entry.author_mail,
6930            author_time: entry.author_time,
6931            author_tz: entry.author_tz,
6932            committer: entry.committer_name,
6933            committer_mail: entry.committer_email,
6934            committer_time: entry.committer_time,
6935            committer_tz: entry.committer_tz,
6936            summary: entry.summary,
6937            previous: entry.previous,
6938            filename: entry.filename,
6939        })
6940        .collect::<Vec<_>>();
6941
6942    let messages = blame
6943        .messages
6944        .into_iter()
6945        .map(|(oid, message)| proto::CommitMessage {
6946            oid: oid.as_bytes().into(),
6947            message,
6948        })
6949        .collect::<Vec<_>>();
6950
6951    proto::BlameBufferResponse {
6952        blame_response: Some(proto::blame_buffer_response::BlameResponse { entries, messages }),
6953    }
6954}
6955
6956fn deserialize_blame_buffer_response(
6957    response: proto::BlameBufferResponse,
6958) -> Option<git::blame::Blame> {
6959    let response = response.blame_response?;
6960    let entries = response
6961        .entries
6962        .into_iter()
6963        .filter_map(|entry| {
6964            Some(git::blame::BlameEntry {
6965                sha: git::Oid::from_bytes(&entry.sha).ok()?,
6966                range: entry.start_line..entry.end_line,
6967                original_line_number: entry.original_line_number,
6968                committer_name: entry.committer,
6969                committer_time: entry.committer_time,
6970                committer_tz: entry.committer_tz,
6971                committer_email: entry.committer_mail,
6972                author: entry.author,
6973                author_mail: entry.author_mail,
6974                author_time: entry.author_time,
6975                author_tz: entry.author_tz,
6976                summary: entry.summary,
6977                previous: entry.previous,
6978                filename: entry.filename,
6979            })
6980        })
6981        .collect::<Vec<_>>();
6982
6983    let messages = response
6984        .messages
6985        .into_iter()
6986        .filter_map(|message| Some((git::Oid::from_bytes(&message.oid).ok()?, message.message)))
6987        .collect::<HashMap<_, _>>();
6988
6989    Some(Blame { entries, messages })
6990}
6991
6992fn branch_to_proto(branch: &git::repository::Branch) -> proto::Branch {
6993    proto::Branch {
6994        is_head: branch.is_head,
6995        ref_name: branch.ref_name.to_string(),
6996        unix_timestamp: branch
6997            .most_recent_commit
6998            .as_ref()
6999            .map(|commit| commit.commit_timestamp as u64),
7000        upstream: branch.upstream.as_ref().map(|upstream| proto::GitUpstream {
7001            ref_name: upstream.ref_name.to_string(),
7002            tracking: upstream
7003                .tracking
7004                .status()
7005                .map(|upstream| proto::UpstreamTracking {
7006                    ahead: upstream.ahead as u64,
7007                    behind: upstream.behind as u64,
7008                }),
7009        }),
7010        most_recent_commit: branch
7011            .most_recent_commit
7012            .as_ref()
7013            .map(|commit| proto::CommitSummary {
7014                sha: commit.sha.to_string(),
7015                subject: commit.subject.to_string(),
7016                commit_timestamp: commit.commit_timestamp,
7017                author_name: commit.author_name.to_string(),
7018            }),
7019    }
7020}
7021
7022fn worktree_to_proto(worktree: &git::repository::Worktree) -> proto::Worktree {
7023    proto::Worktree {
7024        path: worktree.path.to_string_lossy().to_string(),
7025        ref_name: worktree
7026            .ref_name
7027            .as_ref()
7028            .map(|s| s.to_string())
7029            .unwrap_or_default(),
7030        sha: worktree.sha.to_string(),
7031    }
7032}
7033
7034fn proto_to_worktree(proto: &proto::Worktree) -> git::repository::Worktree {
7035    git::repository::Worktree {
7036        path: PathBuf::from(proto.path.clone()),
7037        ref_name: Some(SharedString::from(&proto.ref_name)),
7038        sha: proto.sha.clone().into(),
7039    }
7040}
7041
7042fn proto_to_branch(proto: &proto::Branch) -> git::repository::Branch {
7043    git::repository::Branch {
7044        is_head: proto.is_head,
7045        ref_name: proto.ref_name.clone().into(),
7046        upstream: proto
7047            .upstream
7048            .as_ref()
7049            .map(|upstream| git::repository::Upstream {
7050                ref_name: upstream.ref_name.to_string().into(),
7051                tracking: upstream
7052                    .tracking
7053                    .as_ref()
7054                    .map(|tracking| {
7055                        git::repository::UpstreamTracking::Tracked(UpstreamTrackingStatus {
7056                            ahead: tracking.ahead as u32,
7057                            behind: tracking.behind as u32,
7058                        })
7059                    })
7060                    .unwrap_or(git::repository::UpstreamTracking::Gone),
7061            }),
7062        most_recent_commit: proto.most_recent_commit.as_ref().map(|commit| {
7063            git::repository::CommitSummary {
7064                sha: commit.sha.to_string().into(),
7065                subject: commit.subject.to_string().into(),
7066                commit_timestamp: commit.commit_timestamp,
7067                author_name: commit.author_name.to_string().into(),
7068                has_parent: true,
7069            }
7070        }),
7071    }
7072}
7073
7074fn commit_details_to_proto(commit: &CommitDetails) -> proto::GitCommitDetails {
7075    proto::GitCommitDetails {
7076        sha: commit.sha.to_string(),
7077        message: commit.message.to_string(),
7078        commit_timestamp: commit.commit_timestamp,
7079        author_email: commit.author_email.to_string(),
7080        author_name: commit.author_name.to_string(),
7081    }
7082}
7083
7084fn proto_to_commit_details(proto: &proto::GitCommitDetails) -> CommitDetails {
7085    CommitDetails {
7086        sha: proto.sha.clone().into(),
7087        message: proto.message.clone().into(),
7088        commit_timestamp: proto.commit_timestamp,
7089        author_email: proto.author_email.clone().into(),
7090        author_name: proto.author_name.clone().into(),
7091    }
7092}
7093
7094/// This snapshot computes the repository state on the foreground thread while
7095/// running the git commands on the background thread. We update branch, head,
7096/// remotes, and worktrees first so the UI can react sooner, then compute file
7097/// state and emit those events immediately after.
7098async fn compute_snapshot(
7099    this: Entity<Repository>,
7100    backend: Arc<dyn GitRepository>,
7101    cx: &mut AsyncApp,
7102) -> Result<RepositorySnapshot> {
7103    let (id, work_directory_abs_path, prev_snapshot) = this.update(cx, |this, _| {
7104        this.paths_needing_status_update.clear();
7105        (
7106            this.id,
7107            this.work_directory_abs_path.clone(),
7108            this.snapshot.clone(),
7109        )
7110    });
7111
7112    let head_commit_future = {
7113        let backend = backend.clone();
7114        async move {
7115            Ok(match backend.head_sha().await {
7116                Some(head_sha) => backend.show(head_sha).await.log_err(),
7117                None => None,
7118            })
7119        }
7120    };
7121    let (branches, head_commit, all_worktrees) = cx
7122        .background_spawn({
7123            let backend = backend.clone();
7124            async move {
7125                futures::future::try_join3(
7126                    backend.branches(),
7127                    head_commit_future,
7128                    backend.worktrees(),
7129                )
7130                .await
7131            }
7132        })
7133        .await?;
7134    let branch = branches.into_iter().find(|branch| branch.is_head);
7135
7136    let linked_worktrees: Arc<[GitWorktree]> = all_worktrees
7137        .into_iter()
7138        .filter(|wt| wt.path != *work_directory_abs_path)
7139        .collect();
7140
7141    let (remote_origin_url, remote_upstream_url) = cx
7142        .background_spawn({
7143            let backend = backend.clone();
7144            async move {
7145                Ok::<_, anyhow::Error>(
7146                    futures::future::join(
7147                        backend.remote_url("origin"),
7148                        backend.remote_url("upstream"),
7149                    )
7150                    .await,
7151                )
7152            }
7153        })
7154        .await?;
7155
7156    let snapshot = this.update(cx, |this, cx| {
7157        let branch_changed =
7158            branch != this.snapshot.branch || head_commit != this.snapshot.head_commit;
7159        let worktrees_changed = *linked_worktrees != *this.snapshot.linked_worktrees;
7160
7161        this.snapshot = RepositorySnapshot {
7162            id,
7163            work_directory_abs_path,
7164            branch,
7165            head_commit,
7166            remote_origin_url,
7167            remote_upstream_url,
7168            linked_worktrees,
7169            scan_id: prev_snapshot.scan_id + 1,
7170            ..prev_snapshot
7171        };
7172
7173        if branch_changed {
7174            cx.emit(RepositoryEvent::BranchChanged);
7175        }
7176
7177        if worktrees_changed {
7178            cx.emit(RepositoryEvent::GitWorktreeListChanged);
7179        }
7180
7181        this.snapshot.clone()
7182    });
7183
7184    let (statuses, diff_stats, stash_entries) = cx
7185        .background_spawn({
7186            let backend = backend.clone();
7187            let snapshot = snapshot.clone();
7188            async move {
7189                let diff_stat_future: BoxFuture<'_, Result<status::GitDiffStat>> =
7190                    if snapshot.head_commit.is_some() {
7191                        backend.diff_stat(&[])
7192                    } else {
7193                        future::ready(Ok(status::GitDiffStat {
7194                            entries: Arc::default(),
7195                        }))
7196                        .boxed()
7197                    };
7198                futures::future::try_join3(
7199                    backend.status(&[RepoPath::from_rel_path(
7200                        &RelPath::new(".".as_ref(), PathStyle::local()).unwrap(),
7201                    )]),
7202                    diff_stat_future,
7203                    backend.stash_entries(),
7204                )
7205                .await
7206            }
7207        })
7208        .await?;
7209
7210    let diff_stat_map: HashMap<&RepoPath, DiffStat> =
7211        diff_stats.entries.iter().map(|(p, s)| (p, *s)).collect();
7212    let mut conflicted_paths = Vec::new();
7213    let statuses_by_path = SumTree::from_iter(
7214        statuses.entries.iter().map(|(repo_path, status)| {
7215            if status.is_conflicted() {
7216                conflicted_paths.push(repo_path.clone());
7217            }
7218            StatusEntry {
7219                repo_path: repo_path.clone(),
7220                status: *status,
7221                diff_stat: diff_stat_map.get(repo_path).copied(),
7222            }
7223        }),
7224        (),
7225    );
7226
7227    let merge_details = cx
7228        .background_spawn({
7229            let backend = backend.clone();
7230            let mut merge_details = snapshot.merge.clone();
7231            async move {
7232                let conflicts_changed = merge_details.update(&backend, conflicted_paths).await?;
7233                Ok::<_, anyhow::Error>((merge_details, conflicts_changed))
7234            }
7235        })
7236        .await?;
7237    let (merge_details, conflicts_changed) = merge_details;
7238    log::debug!("new merge details: {merge_details:?}");
7239
7240    Ok(this.update(cx, |this, cx| {
7241        if conflicts_changed || statuses_by_path != this.snapshot.statuses_by_path {
7242            cx.emit(RepositoryEvent::StatusesChanged);
7243        }
7244        if stash_entries != this.snapshot.stash_entries {
7245            cx.emit(RepositoryEvent::StashEntriesChanged);
7246        }
7247
7248        this.snapshot.scan_id += 1;
7249        this.snapshot.merge = merge_details;
7250        this.snapshot.statuses_by_path = statuses_by_path;
7251        this.snapshot.stash_entries = stash_entries;
7252
7253        this.snapshot.clone()
7254    }))
7255}
7256
7257fn status_from_proto(
7258    simple_status: i32,
7259    status: Option<proto::GitFileStatus>,
7260) -> anyhow::Result<FileStatus> {
7261    use proto::git_file_status::Variant;
7262
7263    let Some(variant) = status.and_then(|status| status.variant) else {
7264        let code = proto::GitStatus::from_i32(simple_status)
7265            .with_context(|| format!("Invalid git status code: {simple_status}"))?;
7266        let result = match code {
7267            proto::GitStatus::Added => TrackedStatus {
7268                worktree_status: StatusCode::Added,
7269                index_status: StatusCode::Unmodified,
7270            }
7271            .into(),
7272            proto::GitStatus::Modified => TrackedStatus {
7273                worktree_status: StatusCode::Modified,
7274                index_status: StatusCode::Unmodified,
7275            }
7276            .into(),
7277            proto::GitStatus::Conflict => UnmergedStatus {
7278                first_head: UnmergedStatusCode::Updated,
7279                second_head: UnmergedStatusCode::Updated,
7280            }
7281            .into(),
7282            proto::GitStatus::Deleted => TrackedStatus {
7283                worktree_status: StatusCode::Deleted,
7284                index_status: StatusCode::Unmodified,
7285            }
7286            .into(),
7287            _ => anyhow::bail!("Invalid code for simple status: {simple_status}"),
7288        };
7289        return Ok(result);
7290    };
7291
7292    let result = match variant {
7293        Variant::Untracked(_) => FileStatus::Untracked,
7294        Variant::Ignored(_) => FileStatus::Ignored,
7295        Variant::Unmerged(unmerged) => {
7296            let [first_head, second_head] =
7297                [unmerged.first_head, unmerged.second_head].map(|head| {
7298                    let code = proto::GitStatus::from_i32(head)
7299                        .with_context(|| format!("Invalid git status code: {head}"))?;
7300                    let result = match code {
7301                        proto::GitStatus::Added => UnmergedStatusCode::Added,
7302                        proto::GitStatus::Updated => UnmergedStatusCode::Updated,
7303                        proto::GitStatus::Deleted => UnmergedStatusCode::Deleted,
7304                        _ => anyhow::bail!("Invalid code for unmerged status: {code:?}"),
7305                    };
7306                    Ok(result)
7307                });
7308            let [first_head, second_head] = [first_head?, second_head?];
7309            UnmergedStatus {
7310                first_head,
7311                second_head,
7312            }
7313            .into()
7314        }
7315        Variant::Tracked(tracked) => {
7316            let [index_status, worktree_status] = [tracked.index_status, tracked.worktree_status]
7317                .map(|status| {
7318                    let code = proto::GitStatus::from_i32(status)
7319                        .with_context(|| format!("Invalid git status code: {status}"))?;
7320                    let result = match code {
7321                        proto::GitStatus::Modified => StatusCode::Modified,
7322                        proto::GitStatus::TypeChanged => StatusCode::TypeChanged,
7323                        proto::GitStatus::Added => StatusCode::Added,
7324                        proto::GitStatus::Deleted => StatusCode::Deleted,
7325                        proto::GitStatus::Renamed => StatusCode::Renamed,
7326                        proto::GitStatus::Copied => StatusCode::Copied,
7327                        proto::GitStatus::Unmodified => StatusCode::Unmodified,
7328                        _ => anyhow::bail!("Invalid code for tracked status: {code:?}"),
7329                    };
7330                    Ok(result)
7331                });
7332            let [index_status, worktree_status] = [index_status?, worktree_status?];
7333            TrackedStatus {
7334                index_status,
7335                worktree_status,
7336            }
7337            .into()
7338        }
7339    };
7340    Ok(result)
7341}
7342
7343fn status_to_proto(status: FileStatus) -> proto::GitFileStatus {
7344    use proto::git_file_status::{Tracked, Unmerged, Variant};
7345
7346    let variant = match status {
7347        FileStatus::Untracked => Variant::Untracked(Default::default()),
7348        FileStatus::Ignored => Variant::Ignored(Default::default()),
7349        FileStatus::Unmerged(UnmergedStatus {
7350            first_head,
7351            second_head,
7352        }) => Variant::Unmerged(Unmerged {
7353            first_head: unmerged_status_to_proto(first_head),
7354            second_head: unmerged_status_to_proto(second_head),
7355        }),
7356        FileStatus::Tracked(TrackedStatus {
7357            index_status,
7358            worktree_status,
7359        }) => Variant::Tracked(Tracked {
7360            index_status: tracked_status_to_proto(index_status),
7361            worktree_status: tracked_status_to_proto(worktree_status),
7362        }),
7363    };
7364    proto::GitFileStatus {
7365        variant: Some(variant),
7366    }
7367}
7368
7369fn unmerged_status_to_proto(code: UnmergedStatusCode) -> i32 {
7370    match code {
7371        UnmergedStatusCode::Added => proto::GitStatus::Added as _,
7372        UnmergedStatusCode::Deleted => proto::GitStatus::Deleted as _,
7373        UnmergedStatusCode::Updated => proto::GitStatus::Updated as _,
7374    }
7375}
7376
7377fn tracked_status_to_proto(code: StatusCode) -> i32 {
7378    match code {
7379        StatusCode::Added => proto::GitStatus::Added as _,
7380        StatusCode::Deleted => proto::GitStatus::Deleted as _,
7381        StatusCode::Modified => proto::GitStatus::Modified as _,
7382        StatusCode::Renamed => proto::GitStatus::Renamed as _,
7383        StatusCode::TypeChanged => proto::GitStatus::TypeChanged as _,
7384        StatusCode::Copied => proto::GitStatus::Copied as _,
7385        StatusCode::Unmodified => proto::GitStatus::Unmodified as _,
7386    }
7387}