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 branch_name = envelope.payload.branch_name;
2547
2548        repository_handle
2549            .update(&mut cx, |repository_handle, _| {
2550                repository_handle.delete_branch(branch_name)
2551            })
2552            .await??;
2553
2554        Ok(proto::Ack {})
2555    }
2556
2557    async fn handle_remove_remote(
2558        this: Entity<Self>,
2559        envelope: TypedEnvelope<proto::GitRemoveRemote>,
2560        mut cx: AsyncApp,
2561    ) -> Result<proto::Ack> {
2562        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2563        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2564        let remote_name = envelope.payload.remote_name;
2565
2566        repository_handle
2567            .update(&mut cx, |repository_handle, _| {
2568                repository_handle.remove_remote(remote_name)
2569            })
2570            .await??;
2571
2572        Ok(proto::Ack {})
2573    }
2574
2575    async fn handle_show(
2576        this: Entity<Self>,
2577        envelope: TypedEnvelope<proto::GitShow>,
2578        mut cx: AsyncApp,
2579    ) -> Result<proto::GitCommitDetails> {
2580        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2581        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2582
2583        let commit = repository_handle
2584            .update(&mut cx, |repository_handle, _| {
2585                repository_handle.show(envelope.payload.commit)
2586            })
2587            .await??;
2588        Ok(proto::GitCommitDetails {
2589            sha: commit.sha.into(),
2590            message: commit.message.into(),
2591            commit_timestamp: commit.commit_timestamp,
2592            author_email: commit.author_email.into(),
2593            author_name: commit.author_name.into(),
2594        })
2595    }
2596
2597    async fn handle_load_commit_diff(
2598        this: Entity<Self>,
2599        envelope: TypedEnvelope<proto::LoadCommitDiff>,
2600        mut cx: AsyncApp,
2601    ) -> Result<proto::LoadCommitDiffResponse> {
2602        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2603        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2604
2605        let commit_diff = repository_handle
2606            .update(&mut cx, |repository_handle, _| {
2607                repository_handle.load_commit_diff(envelope.payload.commit)
2608            })
2609            .await??;
2610        Ok(proto::LoadCommitDiffResponse {
2611            files: commit_diff
2612                .files
2613                .into_iter()
2614                .map(|file| proto::CommitFile {
2615                    path: file.path.to_proto(),
2616                    old_text: file.old_text,
2617                    new_text: file.new_text,
2618                    is_binary: file.is_binary,
2619                })
2620                .collect(),
2621        })
2622    }
2623
2624    async fn handle_file_history(
2625        this: Entity<Self>,
2626        envelope: TypedEnvelope<proto::GitFileHistory>,
2627        mut cx: AsyncApp,
2628    ) -> Result<proto::GitFileHistoryResponse> {
2629        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2630        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2631        let path = RepoPath::from_proto(&envelope.payload.path)?;
2632        let skip = envelope.payload.skip as usize;
2633        let limit = envelope.payload.limit.map(|l| l as usize);
2634
2635        let file_history = repository_handle
2636            .update(&mut cx, |repository_handle, _| {
2637                repository_handle.file_history_paginated(path, skip, limit)
2638            })
2639            .await??;
2640
2641        Ok(proto::GitFileHistoryResponse {
2642            entries: file_history
2643                .entries
2644                .into_iter()
2645                .map(|entry| proto::FileHistoryEntry {
2646                    sha: entry.sha.to_string(),
2647                    subject: entry.subject.to_string(),
2648                    message: entry.message.to_string(),
2649                    commit_timestamp: entry.commit_timestamp,
2650                    author_name: entry.author_name.to_string(),
2651                    author_email: entry.author_email.to_string(),
2652                })
2653                .collect(),
2654            path: file_history.path.to_proto(),
2655        })
2656    }
2657
2658    async fn handle_reset(
2659        this: Entity<Self>,
2660        envelope: TypedEnvelope<proto::GitReset>,
2661        mut cx: AsyncApp,
2662    ) -> Result<proto::Ack> {
2663        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2664        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2665
2666        let mode = match envelope.payload.mode() {
2667            git_reset::ResetMode::Soft => ResetMode::Soft,
2668            git_reset::ResetMode::Mixed => ResetMode::Mixed,
2669        };
2670
2671        repository_handle
2672            .update(&mut cx, |repository_handle, cx| {
2673                repository_handle.reset(envelope.payload.commit, mode, cx)
2674            })
2675            .await??;
2676        Ok(proto::Ack {})
2677    }
2678
2679    async fn handle_checkout_files(
2680        this: Entity<Self>,
2681        envelope: TypedEnvelope<proto::GitCheckoutFiles>,
2682        mut cx: AsyncApp,
2683    ) -> Result<proto::Ack> {
2684        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2685        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2686        let paths = envelope
2687            .payload
2688            .paths
2689            .iter()
2690            .map(|s| RepoPath::from_proto(s))
2691            .collect::<Result<Vec<_>>>()?;
2692
2693        repository_handle
2694            .update(&mut cx, |repository_handle, cx| {
2695                repository_handle.checkout_files(&envelope.payload.commit, paths, cx)
2696            })
2697            .await?;
2698        Ok(proto::Ack {})
2699    }
2700
2701    async fn handle_open_commit_message_buffer(
2702        this: Entity<Self>,
2703        envelope: TypedEnvelope<proto::OpenCommitMessageBuffer>,
2704        mut cx: AsyncApp,
2705    ) -> Result<proto::OpenBufferResponse> {
2706        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2707        let repository = Self::repository_for_request(&this, repository_id, &mut cx)?;
2708        let buffer = repository
2709            .update(&mut cx, |repository, cx| {
2710                repository.open_commit_buffer(None, this.read(cx).buffer_store.clone(), cx)
2711            })
2712            .await?;
2713
2714        let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
2715        this.update(&mut cx, |this, cx| {
2716            this.buffer_store.update(cx, |buffer_store, cx| {
2717                buffer_store
2718                    .create_buffer_for_peer(
2719                        &buffer,
2720                        envelope.original_sender_id.unwrap_or(envelope.sender_id),
2721                        cx,
2722                    )
2723                    .detach_and_log_err(cx);
2724            })
2725        });
2726
2727        Ok(proto::OpenBufferResponse {
2728            buffer_id: buffer_id.to_proto(),
2729        })
2730    }
2731
2732    async fn handle_askpass(
2733        this: Entity<Self>,
2734        envelope: TypedEnvelope<proto::AskPassRequest>,
2735        mut cx: AsyncApp,
2736    ) -> Result<proto::AskPassResponse> {
2737        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2738        let repository = Self::repository_for_request(&this, repository_id, &mut cx)?;
2739
2740        let delegates = cx.update(|cx| repository.read(cx).askpass_delegates.clone());
2741        let Some(mut askpass) = delegates.lock().remove(&envelope.payload.askpass_id) else {
2742            debug_panic!("no askpass found");
2743            anyhow::bail!("no askpass found");
2744        };
2745
2746        let response = askpass
2747            .ask_password(envelope.payload.prompt)
2748            .await
2749            .ok_or_else(|| anyhow::anyhow!("askpass cancelled"))?;
2750
2751        delegates
2752            .lock()
2753            .insert(envelope.payload.askpass_id, askpass);
2754
2755        // In fact, we don't quite know what we're doing here, as we're sending askpass password unencrypted, but..
2756        Ok(proto::AskPassResponse {
2757            response: response.decrypt(IKnowWhatIAmDoingAndIHaveReadTheDocs)?,
2758        })
2759    }
2760
2761    async fn handle_check_for_pushed_commits(
2762        this: Entity<Self>,
2763        envelope: TypedEnvelope<proto::CheckForPushedCommits>,
2764        mut cx: AsyncApp,
2765    ) -> Result<proto::CheckForPushedCommitsResponse> {
2766        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2767        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2768
2769        let branches = repository_handle
2770            .update(&mut cx, |repository_handle, _| {
2771                repository_handle.check_for_pushed_commits()
2772            })
2773            .await??;
2774        Ok(proto::CheckForPushedCommitsResponse {
2775            pushed_to: branches
2776                .into_iter()
2777                .map(|commit| commit.to_string())
2778                .collect(),
2779        })
2780    }
2781
2782    async fn handle_git_diff(
2783        this: Entity<Self>,
2784        envelope: TypedEnvelope<proto::GitDiff>,
2785        mut cx: AsyncApp,
2786    ) -> Result<proto::GitDiffResponse> {
2787        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2788        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2789        let diff_type = match envelope.payload.diff_type() {
2790            proto::git_diff::DiffType::HeadToIndex => DiffType::HeadToIndex,
2791            proto::git_diff::DiffType::HeadToWorktree => DiffType::HeadToWorktree,
2792            proto::git_diff::DiffType::MergeBase => {
2793                let base_ref = envelope
2794                    .payload
2795                    .merge_base_ref
2796                    .ok_or_else(|| anyhow!("merge_base_ref is required for MergeBase diff type"))?;
2797                DiffType::MergeBase {
2798                    base_ref: base_ref.into(),
2799                }
2800            }
2801        };
2802
2803        let mut diff = repository_handle
2804            .update(&mut cx, |repository_handle, cx| {
2805                repository_handle.diff(diff_type, cx)
2806            })
2807            .await??;
2808        const ONE_MB: usize = 1_000_000;
2809        if diff.len() > ONE_MB {
2810            diff = diff.chars().take(ONE_MB).collect()
2811        }
2812
2813        Ok(proto::GitDiffResponse { diff })
2814    }
2815
2816    async fn handle_tree_diff(
2817        this: Entity<Self>,
2818        request: TypedEnvelope<proto::GetTreeDiff>,
2819        mut cx: AsyncApp,
2820    ) -> Result<proto::GetTreeDiffResponse> {
2821        let repository_id = RepositoryId(request.payload.repository_id);
2822        let diff_type = if request.payload.is_merge {
2823            DiffTreeType::MergeBase {
2824                base: request.payload.base.into(),
2825                head: request.payload.head.into(),
2826            }
2827        } else {
2828            DiffTreeType::Since {
2829                base: request.payload.base.into(),
2830                head: request.payload.head.into(),
2831            }
2832        };
2833
2834        let diff = this
2835            .update(&mut cx, |this, cx| {
2836                let repository = this.repositories().get(&repository_id)?;
2837                Some(repository.update(cx, |repo, cx| repo.diff_tree(diff_type, cx)))
2838            })
2839            .context("missing repository")?
2840            .await??;
2841
2842        Ok(proto::GetTreeDiffResponse {
2843            entries: diff
2844                .entries
2845                .into_iter()
2846                .map(|(path, status)| proto::TreeDiffStatus {
2847                    path: path.as_ref().to_proto(),
2848                    status: match status {
2849                        TreeDiffStatus::Added {} => proto::tree_diff_status::Status::Added.into(),
2850                        TreeDiffStatus::Modified { .. } => {
2851                            proto::tree_diff_status::Status::Modified.into()
2852                        }
2853                        TreeDiffStatus::Deleted { .. } => {
2854                            proto::tree_diff_status::Status::Deleted.into()
2855                        }
2856                    },
2857                    oid: match status {
2858                        TreeDiffStatus::Deleted { old } | TreeDiffStatus::Modified { old } => {
2859                            Some(old.to_string())
2860                        }
2861                        TreeDiffStatus::Added => None,
2862                    },
2863                })
2864                .collect(),
2865        })
2866    }
2867
2868    async fn handle_get_blob_content(
2869        this: Entity<Self>,
2870        request: TypedEnvelope<proto::GetBlobContent>,
2871        mut cx: AsyncApp,
2872    ) -> Result<proto::GetBlobContentResponse> {
2873        let oid = git::Oid::from_str(&request.payload.oid)?;
2874        let repository_id = RepositoryId(request.payload.repository_id);
2875        let content = this
2876            .update(&mut cx, |this, cx| {
2877                let repository = this.repositories().get(&repository_id)?;
2878                Some(repository.update(cx, |repo, cx| repo.load_blob_content(oid, cx)))
2879            })
2880            .context("missing repository")?
2881            .await?;
2882        Ok(proto::GetBlobContentResponse { content })
2883    }
2884
2885    async fn handle_open_unstaged_diff(
2886        this: Entity<Self>,
2887        request: TypedEnvelope<proto::OpenUnstagedDiff>,
2888        mut cx: AsyncApp,
2889    ) -> Result<proto::OpenUnstagedDiffResponse> {
2890        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2891        let diff = this
2892            .update(&mut cx, |this, cx| {
2893                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2894                Some(this.open_unstaged_diff(buffer, cx))
2895            })
2896            .context("missing buffer")?
2897            .await?;
2898        this.update(&mut cx, |this, _| {
2899            let shared_diffs = this
2900                .shared_diffs
2901                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2902                .or_default();
2903            shared_diffs.entry(buffer_id).or_default().unstaged = Some(diff.clone());
2904        });
2905        let staged_text = diff.read_with(&cx, |diff, cx| diff.base_text_string(cx));
2906        Ok(proto::OpenUnstagedDiffResponse { staged_text })
2907    }
2908
2909    async fn handle_open_uncommitted_diff(
2910        this: Entity<Self>,
2911        request: TypedEnvelope<proto::OpenUncommittedDiff>,
2912        mut cx: AsyncApp,
2913    ) -> Result<proto::OpenUncommittedDiffResponse> {
2914        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2915        let diff = this
2916            .update(&mut cx, |this, cx| {
2917                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2918                Some(this.open_uncommitted_diff(buffer, cx))
2919            })
2920            .context("missing buffer")?
2921            .await?;
2922        this.update(&mut cx, |this, _| {
2923            let shared_diffs = this
2924                .shared_diffs
2925                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2926                .or_default();
2927            shared_diffs.entry(buffer_id).or_default().uncommitted = Some(diff.clone());
2928        });
2929        Ok(diff.read_with(&cx, |diff, cx| {
2930            use proto::open_uncommitted_diff_response::Mode;
2931
2932            let unstaged_diff = diff.secondary_diff();
2933            let index_snapshot = unstaged_diff.and_then(|diff| {
2934                let diff = diff.read(cx);
2935                diff.base_text_exists().then(|| diff.base_text(cx))
2936            });
2937
2938            let mode;
2939            let staged_text;
2940            let committed_text;
2941            if diff.base_text_exists() {
2942                let committed_snapshot = diff.base_text(cx);
2943                committed_text = Some(committed_snapshot.text());
2944                if let Some(index_text) = index_snapshot {
2945                    if index_text.remote_id() == committed_snapshot.remote_id() {
2946                        mode = Mode::IndexMatchesHead;
2947                        staged_text = None;
2948                    } else {
2949                        mode = Mode::IndexAndHead;
2950                        staged_text = Some(index_text.text());
2951                    }
2952                } else {
2953                    mode = Mode::IndexAndHead;
2954                    staged_text = None;
2955                }
2956            } else {
2957                mode = Mode::IndexAndHead;
2958                committed_text = None;
2959                staged_text = index_snapshot.as_ref().map(|buffer| buffer.text());
2960            }
2961
2962            proto::OpenUncommittedDiffResponse {
2963                committed_text,
2964                staged_text,
2965                mode: mode.into(),
2966            }
2967        }))
2968    }
2969
2970    async fn handle_update_diff_bases(
2971        this: Entity<Self>,
2972        request: TypedEnvelope<proto::UpdateDiffBases>,
2973        mut cx: AsyncApp,
2974    ) -> Result<()> {
2975        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2976        this.update(&mut cx, |this, cx| {
2977            if let Some(diff_state) = this.diffs.get_mut(&buffer_id)
2978                && let Some(buffer) = this.buffer_store.read(cx).get(buffer_id)
2979            {
2980                let buffer = buffer.read(cx).text_snapshot();
2981                diff_state.update(cx, |diff_state, cx| {
2982                    diff_state.handle_base_texts_updated(buffer, request.payload, cx);
2983                })
2984            }
2985        });
2986        Ok(())
2987    }
2988
2989    async fn handle_blame_buffer(
2990        this: Entity<Self>,
2991        envelope: TypedEnvelope<proto::BlameBuffer>,
2992        mut cx: AsyncApp,
2993    ) -> Result<proto::BlameBufferResponse> {
2994        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
2995        let version = deserialize_version(&envelope.payload.version);
2996        let buffer = this.read_with(&cx, |this, cx| {
2997            this.buffer_store.read(cx).get_existing(buffer_id)
2998        })?;
2999        buffer
3000            .update(&mut cx, |buffer, _| {
3001                buffer.wait_for_version(version.clone())
3002            })
3003            .await?;
3004        let blame = this
3005            .update(&mut cx, |this, cx| {
3006                this.blame_buffer(&buffer, Some(version), cx)
3007            })
3008            .await?;
3009        Ok(serialize_blame_buffer_response(blame))
3010    }
3011
3012    async fn handle_get_permalink_to_line(
3013        this: Entity<Self>,
3014        envelope: TypedEnvelope<proto::GetPermalinkToLine>,
3015        mut cx: AsyncApp,
3016    ) -> Result<proto::GetPermalinkToLineResponse> {
3017        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
3018        // let version = deserialize_version(&envelope.payload.version);
3019        let selection = {
3020            let proto_selection = envelope
3021                .payload
3022                .selection
3023                .context("no selection to get permalink for defined")?;
3024            proto_selection.start as u32..proto_selection.end as u32
3025        };
3026        let buffer = this.read_with(&cx, |this, cx| {
3027            this.buffer_store.read(cx).get_existing(buffer_id)
3028        })?;
3029        let permalink = this
3030            .update(&mut cx, |this, cx| {
3031                this.get_permalink_to_line(&buffer, selection, cx)
3032            })
3033            .await?;
3034        Ok(proto::GetPermalinkToLineResponse {
3035            permalink: permalink.to_string(),
3036        })
3037    }
3038
3039    fn repository_for_request(
3040        this: &Entity<Self>,
3041        id: RepositoryId,
3042        cx: &mut AsyncApp,
3043    ) -> Result<Entity<Repository>> {
3044        this.read_with(cx, |this, _| {
3045            this.repositories
3046                .get(&id)
3047                .context("missing repository handle")
3048                .cloned()
3049        })
3050    }
3051
3052    pub fn repo_snapshots(&self, cx: &App) -> HashMap<RepositoryId, RepositorySnapshot> {
3053        self.repositories
3054            .iter()
3055            .map(|(id, repo)| (*id, repo.read(cx).snapshot.clone()))
3056            .collect()
3057    }
3058
3059    fn process_updated_entries(
3060        &self,
3061        worktree: &Entity<Worktree>,
3062        updated_entries: &[(Arc<RelPath>, ProjectEntryId, PathChange)],
3063        cx: &mut App,
3064    ) -> Task<HashMap<Entity<Repository>, Vec<RepoPath>>> {
3065        let path_style = worktree.read(cx).path_style();
3066        let mut repo_paths = self
3067            .repositories
3068            .values()
3069            .map(|repo| (repo.read(cx).work_directory_abs_path.clone(), repo.clone()))
3070            .collect::<Vec<_>>();
3071        let mut entries: Vec<_> = updated_entries
3072            .iter()
3073            .map(|(path, _, _)| path.clone())
3074            .collect();
3075        entries.sort();
3076        let worktree = worktree.read(cx);
3077
3078        let entries = entries
3079            .into_iter()
3080            .map(|path| worktree.absolutize(&path))
3081            .collect::<Arc<[_]>>();
3082
3083        let executor = cx.background_executor().clone();
3084        cx.background_executor().spawn(async move {
3085            repo_paths.sort_by(|lhs, rhs| lhs.0.cmp(&rhs.0));
3086            let mut paths_by_git_repo = HashMap::<_, Vec<_>>::default();
3087            let mut tasks = FuturesOrdered::new();
3088            for (repo_path, repo) in repo_paths.into_iter().rev() {
3089                let entries = entries.clone();
3090                let task = executor.spawn(async move {
3091                    // Find all repository paths that belong to this repo
3092                    let mut ix = entries.partition_point(|path| path < &*repo_path);
3093                    if ix == entries.len() {
3094                        return None;
3095                    };
3096
3097                    let mut paths = Vec::new();
3098                    // All paths prefixed by a given repo will constitute a continuous range.
3099                    while let Some(path) = entries.get(ix)
3100                        && let Some(repo_path) = RepositorySnapshot::abs_path_to_repo_path_inner(
3101                            &repo_path, path, path_style,
3102                        )
3103                    {
3104                        paths.push((repo_path, ix));
3105                        ix += 1;
3106                    }
3107                    if paths.is_empty() {
3108                        None
3109                    } else {
3110                        Some((repo, paths))
3111                    }
3112                });
3113                tasks.push_back(task);
3114            }
3115
3116            // Now, let's filter out the "duplicate" entries that were processed by multiple distinct repos.
3117            let mut path_was_used = vec![false; entries.len()];
3118            let tasks = tasks.collect::<Vec<_>>().await;
3119            // Process tasks from the back: iterating backwards allows us to see more-specific paths first.
3120            // We always want to assign a path to it's innermost repository.
3121            for t in tasks {
3122                let Some((repo, paths)) = t else {
3123                    continue;
3124                };
3125                let entry = paths_by_git_repo.entry(repo).or_default();
3126                for (repo_path, ix) in paths {
3127                    if path_was_used[ix] {
3128                        continue;
3129                    }
3130                    path_was_used[ix] = true;
3131                    entry.push(repo_path);
3132                }
3133            }
3134
3135            paths_by_git_repo
3136        })
3137    }
3138}
3139
3140impl BufferGitState {
3141    fn new(_git_store: WeakEntity<GitStore>) -> Self {
3142        Self {
3143            unstaged_diff: Default::default(),
3144            uncommitted_diff: Default::default(),
3145            oid_diffs: Default::default(),
3146            recalculate_diff_task: Default::default(),
3147            language: Default::default(),
3148            language_registry: Default::default(),
3149            recalculating_tx: postage::watch::channel_with(false).0,
3150            hunk_staging_operation_count: 0,
3151            hunk_staging_operation_count_as_of_write: 0,
3152            head_text: Default::default(),
3153            index_text: Default::default(),
3154            oid_texts: Default::default(),
3155            head_changed: Default::default(),
3156            index_changed: Default::default(),
3157            language_changed: Default::default(),
3158            conflict_updated_futures: Default::default(),
3159            conflict_set: Default::default(),
3160            reparse_conflict_markers_task: Default::default(),
3161        }
3162    }
3163
3164    #[ztracing::instrument(skip_all)]
3165    fn buffer_language_changed(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
3166        self.language = buffer.read(cx).language().cloned();
3167        self.language_changed = true;
3168        let _ = self.recalculate_diffs(buffer.read(cx).text_snapshot(), cx);
3169    }
3170
3171    fn reparse_conflict_markers(
3172        &mut self,
3173        buffer: text::BufferSnapshot,
3174        cx: &mut Context<Self>,
3175    ) -> oneshot::Receiver<()> {
3176        let (tx, rx) = oneshot::channel();
3177
3178        let Some(conflict_set) = self
3179            .conflict_set
3180            .as_ref()
3181            .and_then(|conflict_set| conflict_set.upgrade())
3182        else {
3183            return rx;
3184        };
3185
3186        let old_snapshot = conflict_set.read_with(cx, |conflict_set, _| {
3187            if conflict_set.has_conflict {
3188                Some(conflict_set.snapshot())
3189            } else {
3190                None
3191            }
3192        });
3193
3194        if let Some(old_snapshot) = old_snapshot {
3195            self.conflict_updated_futures.push(tx);
3196            self.reparse_conflict_markers_task = Some(cx.spawn(async move |this, cx| {
3197                let (snapshot, changed_range) = cx
3198                    .background_spawn(async move {
3199                        let new_snapshot = ConflictSet::parse(&buffer);
3200                        let changed_range = old_snapshot.compare(&new_snapshot, &buffer);
3201                        (new_snapshot, changed_range)
3202                    })
3203                    .await;
3204                this.update(cx, |this, cx| {
3205                    if let Some(conflict_set) = &this.conflict_set {
3206                        conflict_set
3207                            .update(cx, |conflict_set, cx| {
3208                                conflict_set.set_snapshot(snapshot, changed_range, cx);
3209                            })
3210                            .ok();
3211                    }
3212                    let futures = std::mem::take(&mut this.conflict_updated_futures);
3213                    for tx in futures {
3214                        tx.send(()).ok();
3215                    }
3216                })
3217            }))
3218        }
3219
3220        rx
3221    }
3222
3223    fn unstaged_diff(&self) -> Option<Entity<BufferDiff>> {
3224        self.unstaged_diff.as_ref().and_then(|set| set.upgrade())
3225    }
3226
3227    fn uncommitted_diff(&self) -> Option<Entity<BufferDiff>> {
3228        self.uncommitted_diff.as_ref().and_then(|set| set.upgrade())
3229    }
3230
3231    fn oid_diff(&self, oid: Option<git::Oid>) -> Option<Entity<BufferDiff>> {
3232        self.oid_diffs.get(&oid).and_then(|weak| weak.upgrade())
3233    }
3234
3235    fn handle_base_texts_updated(
3236        &mut self,
3237        buffer: text::BufferSnapshot,
3238        message: proto::UpdateDiffBases,
3239        cx: &mut Context<Self>,
3240    ) {
3241        use proto::update_diff_bases::Mode;
3242
3243        let Some(mode) = Mode::from_i32(message.mode) else {
3244            return;
3245        };
3246
3247        let diff_bases_change = match mode {
3248            Mode::HeadOnly => DiffBasesChange::SetHead(message.committed_text),
3249            Mode::IndexOnly => DiffBasesChange::SetIndex(message.staged_text),
3250            Mode::IndexMatchesHead => DiffBasesChange::SetBoth(message.committed_text),
3251            Mode::IndexAndHead => DiffBasesChange::SetEach {
3252                index: message.staged_text,
3253                head: message.committed_text,
3254            },
3255        };
3256
3257        self.diff_bases_changed(buffer, Some(diff_bases_change), cx);
3258    }
3259
3260    pub fn wait_for_recalculation(&mut self) -> Option<impl Future<Output = ()> + use<>> {
3261        if *self.recalculating_tx.borrow() {
3262            let mut rx = self.recalculating_tx.subscribe();
3263            Some(async move {
3264                loop {
3265                    let is_recalculating = rx.recv().await;
3266                    if is_recalculating != Some(true) {
3267                        break;
3268                    }
3269                }
3270            })
3271        } else {
3272            None
3273        }
3274    }
3275
3276    fn diff_bases_changed(
3277        &mut self,
3278        buffer: text::BufferSnapshot,
3279        diff_bases_change: Option<DiffBasesChange>,
3280        cx: &mut Context<Self>,
3281    ) {
3282        match diff_bases_change {
3283            Some(DiffBasesChange::SetIndex(index)) => {
3284                self.index_text = index.map(|mut index| {
3285                    text::LineEnding::normalize(&mut index);
3286                    Arc::from(index.as_str())
3287                });
3288                self.index_changed = true;
3289            }
3290            Some(DiffBasesChange::SetHead(head)) => {
3291                self.head_text = head.map(|mut head| {
3292                    text::LineEnding::normalize(&mut head);
3293                    Arc::from(head.as_str())
3294                });
3295                self.head_changed = true;
3296            }
3297            Some(DiffBasesChange::SetBoth(text)) => {
3298                let text = text.map(|mut text| {
3299                    text::LineEnding::normalize(&mut text);
3300                    Arc::from(text.as_str())
3301                });
3302                self.head_text = text.clone();
3303                self.index_text = text;
3304                self.head_changed = true;
3305                self.index_changed = true;
3306            }
3307            Some(DiffBasesChange::SetEach { index, head }) => {
3308                self.index_text = index.map(|mut index| {
3309                    text::LineEnding::normalize(&mut index);
3310                    Arc::from(index.as_str())
3311                });
3312                self.index_changed = true;
3313                self.head_text = head.map(|mut head| {
3314                    text::LineEnding::normalize(&mut head);
3315                    Arc::from(head.as_str())
3316                });
3317                self.head_changed = true;
3318            }
3319            None => {}
3320        }
3321
3322        self.recalculate_diffs(buffer, cx)
3323    }
3324
3325    #[ztracing::instrument(skip_all)]
3326    fn recalculate_diffs(&mut self, buffer: text::BufferSnapshot, cx: &mut Context<Self>) {
3327        *self.recalculating_tx.borrow_mut() = true;
3328
3329        let language = self.language.clone();
3330        let language_registry = self.language_registry.clone();
3331        let unstaged_diff = self.unstaged_diff();
3332        let uncommitted_diff = self.uncommitted_diff();
3333        let head = self.head_text.clone();
3334        let index = self.index_text.clone();
3335        let index_changed = self.index_changed;
3336        let head_changed = self.head_changed;
3337        let language_changed = self.language_changed;
3338        let prev_hunk_staging_operation_count = self.hunk_staging_operation_count_as_of_write;
3339        let index_matches_head = match (self.index_text.as_ref(), self.head_text.as_ref()) {
3340            (Some(index), Some(head)) => Arc::ptr_eq(index, head),
3341            (None, None) => true,
3342            _ => false,
3343        };
3344
3345        let oid_diffs: Vec<(Option<git::Oid>, Entity<BufferDiff>, Option<Arc<str>>)> = self
3346            .oid_diffs
3347            .iter()
3348            .filter_map(|(oid, weak)| {
3349                let base_text = oid.and_then(|oid| self.oid_texts.get(&oid).cloned());
3350                weak.upgrade().map(|diff| (*oid, diff, base_text))
3351            })
3352            .collect();
3353
3354        self.oid_diffs.retain(|oid, weak| {
3355            let alive = weak.upgrade().is_some();
3356            if !alive {
3357                if let Some(oid) = oid {
3358                    self.oid_texts.remove(oid);
3359                }
3360            }
3361            alive
3362        });
3363        self.recalculate_diff_task = Some(cx.spawn(async move |this, cx| {
3364            log::debug!(
3365                "start recalculating diffs for buffer {}",
3366                buffer.remote_id()
3367            );
3368
3369            let mut new_unstaged_diff = None;
3370            if let Some(unstaged_diff) = &unstaged_diff {
3371                new_unstaged_diff = Some(
3372                    cx.update(|cx| {
3373                        unstaged_diff.read(cx).update_diff(
3374                            buffer.clone(),
3375                            index,
3376                            index_changed.then_some(false),
3377                            language.clone(),
3378                            cx,
3379                        )
3380                    })
3381                    .await,
3382                );
3383            }
3384
3385            // Dropping BufferDiff can be expensive, so yield back to the event loop
3386            // for a bit
3387            yield_now().await;
3388
3389            let mut new_uncommitted_diff = None;
3390            if let Some(uncommitted_diff) = &uncommitted_diff {
3391                new_uncommitted_diff = if index_matches_head {
3392                    new_unstaged_diff.clone()
3393                } else {
3394                    Some(
3395                        cx.update(|cx| {
3396                            uncommitted_diff.read(cx).update_diff(
3397                                buffer.clone(),
3398                                head,
3399                                head_changed.then_some(true),
3400                                language.clone(),
3401                                cx,
3402                            )
3403                        })
3404                        .await,
3405                    )
3406                }
3407            }
3408
3409            // Dropping BufferDiff can be expensive, so yield back to the event loop
3410            // for a bit
3411            yield_now().await;
3412
3413            let cancel = this.update(cx, |this, _| {
3414                // This checks whether all pending stage/unstage operations
3415                // have quiesced (i.e. both the corresponding write and the
3416                // read of that write have completed). If not, then we cancel
3417                // this recalculation attempt to avoid invalidating pending
3418                // state too quickly; another recalculation will come along
3419                // later and clear the pending state once the state of the index has settled.
3420                if this.hunk_staging_operation_count > prev_hunk_staging_operation_count {
3421                    *this.recalculating_tx.borrow_mut() = false;
3422                    true
3423                } else {
3424                    false
3425                }
3426            })?;
3427            if cancel {
3428                log::debug!(
3429                    concat!(
3430                        "aborting recalculating diffs for buffer {}",
3431                        "due to subsequent hunk operations",
3432                    ),
3433                    buffer.remote_id()
3434                );
3435                return Ok(());
3436            }
3437
3438            let unstaged_changed_range = if let Some((unstaged_diff, new_unstaged_diff)) =
3439                unstaged_diff.as_ref().zip(new_unstaged_diff.clone())
3440            {
3441                let task = unstaged_diff.update(cx, |diff, cx| {
3442                    // For git index buffer we skip assigning the language as we do not really need to perform any syntax highlighting on
3443                    // 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
3444                    // view multibuffers.
3445                    diff.set_snapshot(new_unstaged_diff, &buffer, cx)
3446                });
3447                Some(task.await)
3448            } else {
3449                None
3450            };
3451
3452            yield_now().await;
3453
3454            if let Some((uncommitted_diff, new_uncommitted_diff)) =
3455                uncommitted_diff.as_ref().zip(new_uncommitted_diff.clone())
3456            {
3457                uncommitted_diff
3458                    .update(cx, |diff, cx| {
3459                        if language_changed {
3460                            diff.language_changed(language.clone(), language_registry, cx);
3461                        }
3462                        diff.set_snapshot_with_secondary(
3463                            new_uncommitted_diff,
3464                            &buffer,
3465                            unstaged_changed_range.flatten(),
3466                            true,
3467                            cx,
3468                        )
3469                    })
3470                    .await;
3471            }
3472
3473            yield_now().await;
3474
3475            for (oid, oid_diff, base_text) in oid_diffs {
3476                let new_oid_diff = cx
3477                    .update(|cx| {
3478                        oid_diff.read(cx).update_diff(
3479                            buffer.clone(),
3480                            base_text,
3481                            None,
3482                            language.clone(),
3483                            cx,
3484                        )
3485                    })
3486                    .await;
3487
3488                oid_diff
3489                    .update(cx, |diff, cx| diff.set_snapshot(new_oid_diff, &buffer, cx))
3490                    .await;
3491
3492                log::debug!(
3493                    "finished recalculating oid diff for buffer {} oid {:?}",
3494                    buffer.remote_id(),
3495                    oid
3496                );
3497
3498                yield_now().await;
3499            }
3500
3501            log::debug!(
3502                "finished recalculating diffs for buffer {}",
3503                buffer.remote_id()
3504            );
3505
3506            if let Some(this) = this.upgrade() {
3507                this.update(cx, |this, _| {
3508                    this.index_changed = false;
3509                    this.head_changed = false;
3510                    this.language_changed = false;
3511                    *this.recalculating_tx.borrow_mut() = false;
3512                });
3513            }
3514
3515            Ok(())
3516        }));
3517    }
3518}
3519
3520fn make_remote_delegate(
3521    this: Entity<GitStore>,
3522    project_id: u64,
3523    repository_id: RepositoryId,
3524    askpass_id: u64,
3525    cx: &mut AsyncApp,
3526) -> AskPassDelegate {
3527    AskPassDelegate::new(cx, move |prompt, tx, cx| {
3528        this.update(cx, |this, cx| {
3529            let Some((client, _)) = this.downstream_client() else {
3530                return;
3531            };
3532            let response = client.request(proto::AskPassRequest {
3533                project_id,
3534                repository_id: repository_id.to_proto(),
3535                askpass_id,
3536                prompt,
3537            });
3538            cx.spawn(async move |_, _| {
3539                let mut response = response.await?.response;
3540                tx.send(EncryptedPassword::try_from(response.as_ref())?)
3541                    .ok();
3542                response.zeroize();
3543                anyhow::Ok(())
3544            })
3545            .detach_and_log_err(cx);
3546        });
3547    })
3548}
3549
3550impl RepositoryId {
3551    pub fn to_proto(self) -> u64 {
3552        self.0
3553    }
3554
3555    pub fn from_proto(id: u64) -> Self {
3556        RepositoryId(id)
3557    }
3558}
3559
3560impl RepositorySnapshot {
3561    fn empty(
3562        id: RepositoryId,
3563        work_directory_abs_path: Arc<Path>,
3564        original_repo_abs_path: Option<Arc<Path>>,
3565        path_style: PathStyle,
3566    ) -> Self {
3567        Self {
3568            id,
3569            statuses_by_path: Default::default(),
3570            original_repo_abs_path: original_repo_abs_path
3571                .unwrap_or_else(|| work_directory_abs_path.clone()),
3572            work_directory_abs_path,
3573            branch: None,
3574            head_commit: None,
3575            scan_id: 0,
3576            merge: Default::default(),
3577            remote_origin_url: None,
3578            remote_upstream_url: None,
3579            stash_entries: Default::default(),
3580            linked_worktrees: Arc::from([]),
3581            path_style,
3582        }
3583    }
3584
3585    fn initial_update(&self, project_id: u64) -> proto::UpdateRepository {
3586        proto::UpdateRepository {
3587            branch_summary: self.branch.as_ref().map(branch_to_proto),
3588            head_commit_details: self.head_commit.as_ref().map(commit_details_to_proto),
3589            updated_statuses: self
3590                .statuses_by_path
3591                .iter()
3592                .map(|entry| entry.to_proto())
3593                .collect(),
3594            removed_statuses: Default::default(),
3595            current_merge_conflicts: self
3596                .merge
3597                .merge_heads_by_conflicted_path
3598                .iter()
3599                .map(|(repo_path, _)| repo_path.to_proto())
3600                .collect(),
3601            merge_message: self.merge.message.as_ref().map(|msg| msg.to_string()),
3602            project_id,
3603            id: self.id.to_proto(),
3604            abs_path: self.work_directory_abs_path.to_string_lossy().into_owned(),
3605            entry_ids: vec![self.id.to_proto()],
3606            scan_id: self.scan_id,
3607            is_last_update: true,
3608            stash_entries: self
3609                .stash_entries
3610                .entries
3611                .iter()
3612                .map(stash_to_proto)
3613                .collect(),
3614            remote_upstream_url: self.remote_upstream_url.clone(),
3615            remote_origin_url: self.remote_origin_url.clone(),
3616            original_repo_abs_path: Some(
3617                self.original_repo_abs_path.to_string_lossy().into_owned(),
3618            ),
3619            linked_worktrees: self
3620                .linked_worktrees
3621                .iter()
3622                .map(worktree_to_proto)
3623                .collect(),
3624        }
3625    }
3626
3627    fn build_update(&self, old: &Self, project_id: u64) -> proto::UpdateRepository {
3628        let mut updated_statuses: Vec<proto::StatusEntry> = Vec::new();
3629        let mut removed_statuses: Vec<String> = Vec::new();
3630
3631        let mut new_statuses = self.statuses_by_path.iter().peekable();
3632        let mut old_statuses = old.statuses_by_path.iter().peekable();
3633
3634        let mut current_new_entry = new_statuses.next();
3635        let mut current_old_entry = old_statuses.next();
3636        loop {
3637            match (current_new_entry, current_old_entry) {
3638                (Some(new_entry), Some(old_entry)) => {
3639                    match new_entry.repo_path.cmp(&old_entry.repo_path) {
3640                        Ordering::Less => {
3641                            updated_statuses.push(new_entry.to_proto());
3642                            current_new_entry = new_statuses.next();
3643                        }
3644                        Ordering::Equal => {
3645                            if new_entry.status != old_entry.status
3646                                || new_entry.diff_stat != old_entry.diff_stat
3647                            {
3648                                updated_statuses.push(new_entry.to_proto());
3649                            }
3650                            current_old_entry = old_statuses.next();
3651                            current_new_entry = new_statuses.next();
3652                        }
3653                        Ordering::Greater => {
3654                            removed_statuses.push(old_entry.repo_path.to_proto());
3655                            current_old_entry = old_statuses.next();
3656                        }
3657                    }
3658                }
3659                (None, Some(old_entry)) => {
3660                    removed_statuses.push(old_entry.repo_path.to_proto());
3661                    current_old_entry = old_statuses.next();
3662                }
3663                (Some(new_entry), None) => {
3664                    updated_statuses.push(new_entry.to_proto());
3665                    current_new_entry = new_statuses.next();
3666                }
3667                (None, None) => break,
3668            }
3669        }
3670
3671        proto::UpdateRepository {
3672            branch_summary: self.branch.as_ref().map(branch_to_proto),
3673            head_commit_details: self.head_commit.as_ref().map(commit_details_to_proto),
3674            updated_statuses,
3675            removed_statuses,
3676            current_merge_conflicts: self
3677                .merge
3678                .merge_heads_by_conflicted_path
3679                .iter()
3680                .map(|(path, _)| path.to_proto())
3681                .collect(),
3682            merge_message: self.merge.message.as_ref().map(|msg| msg.to_string()),
3683            project_id,
3684            id: self.id.to_proto(),
3685            abs_path: self.work_directory_abs_path.to_string_lossy().into_owned(),
3686            entry_ids: vec![],
3687            scan_id: self.scan_id,
3688            is_last_update: true,
3689            stash_entries: self
3690                .stash_entries
3691                .entries
3692                .iter()
3693                .map(stash_to_proto)
3694                .collect(),
3695            remote_upstream_url: self.remote_upstream_url.clone(),
3696            remote_origin_url: self.remote_origin_url.clone(),
3697            original_repo_abs_path: Some(
3698                self.original_repo_abs_path.to_string_lossy().into_owned(),
3699            ),
3700            linked_worktrees: self
3701                .linked_worktrees
3702                .iter()
3703                .map(worktree_to_proto)
3704                .collect(),
3705        }
3706    }
3707
3708    pub fn linked_worktrees(&self) -> &[GitWorktree] {
3709        &self.linked_worktrees
3710    }
3711
3712    pub fn status(&self) -> impl Iterator<Item = StatusEntry> + '_ {
3713        self.statuses_by_path.iter().cloned()
3714    }
3715
3716    pub fn status_summary(&self) -> GitSummary {
3717        self.statuses_by_path.summary().item_summary
3718    }
3719
3720    pub fn status_for_path(&self, path: &RepoPath) -> Option<StatusEntry> {
3721        self.statuses_by_path
3722            .get(&PathKey(path.as_ref().clone()), ())
3723            .cloned()
3724    }
3725
3726    pub fn diff_stat_for_path(&self, path: &RepoPath) -> Option<DiffStat> {
3727        self.statuses_by_path
3728            .get(&PathKey(path.as_ref().clone()), ())
3729            .and_then(|entry| entry.diff_stat)
3730    }
3731
3732    pub fn abs_path_to_repo_path(&self, abs_path: &Path) -> Option<RepoPath> {
3733        Self::abs_path_to_repo_path_inner(&self.work_directory_abs_path, abs_path, self.path_style)
3734    }
3735
3736    fn repo_path_to_abs_path(&self, repo_path: &RepoPath) -> PathBuf {
3737        self.path_style
3738            .join(&self.work_directory_abs_path, repo_path.as_std_path())
3739            .unwrap()
3740            .into()
3741    }
3742
3743    #[inline]
3744    fn abs_path_to_repo_path_inner(
3745        work_directory_abs_path: &Path,
3746        abs_path: &Path,
3747        path_style: PathStyle,
3748    ) -> Option<RepoPath> {
3749        let rel_path = path_style.strip_prefix(abs_path, work_directory_abs_path)?;
3750        Some(RepoPath::from_rel_path(&rel_path))
3751    }
3752
3753    pub fn had_conflict_on_last_merge_head_change(&self, repo_path: &RepoPath) -> bool {
3754        self.merge
3755            .merge_heads_by_conflicted_path
3756            .contains_key(repo_path)
3757    }
3758
3759    pub fn has_conflict(&self, repo_path: &RepoPath) -> bool {
3760        let had_conflict_on_last_merge_head_change = self
3761            .merge
3762            .merge_heads_by_conflicted_path
3763            .contains_key(repo_path);
3764        let has_conflict_currently = self
3765            .status_for_path(repo_path)
3766            .is_some_and(|entry| entry.status.is_conflicted());
3767        had_conflict_on_last_merge_head_change || has_conflict_currently
3768    }
3769
3770    /// This is the name that will be displayed in the repository selector for this repository.
3771    pub fn display_name(&self) -> SharedString {
3772        self.work_directory_abs_path
3773            .file_name()
3774            .unwrap_or_default()
3775            .to_string_lossy()
3776            .to_string()
3777            .into()
3778    }
3779}
3780
3781pub fn stash_to_proto(entry: &StashEntry) -> proto::StashEntry {
3782    proto::StashEntry {
3783        oid: entry.oid.as_bytes().to_vec(),
3784        message: entry.message.clone(),
3785        branch: entry.branch.clone(),
3786        index: entry.index as u64,
3787        timestamp: entry.timestamp,
3788    }
3789}
3790
3791pub fn proto_to_stash(entry: &proto::StashEntry) -> Result<StashEntry> {
3792    Ok(StashEntry {
3793        oid: Oid::from_bytes(&entry.oid)?,
3794        message: entry.message.clone(),
3795        index: entry.index as usize,
3796        branch: entry.branch.clone(),
3797        timestamp: entry.timestamp,
3798    })
3799}
3800
3801impl MergeDetails {
3802    async fn update(
3803        &mut self,
3804        backend: &Arc<dyn GitRepository>,
3805        current_conflicted_paths: Vec<RepoPath>,
3806    ) -> Result<bool> {
3807        log::debug!("load merge details");
3808        self.message = backend.merge_message().await.map(SharedString::from);
3809        let heads = backend
3810            .revparse_batch(vec![
3811                "MERGE_HEAD".into(),
3812                "CHERRY_PICK_HEAD".into(),
3813                "REBASE_HEAD".into(),
3814                "REVERT_HEAD".into(),
3815                "APPLY_HEAD".into(),
3816            ])
3817            .await
3818            .log_err()
3819            .unwrap_or_default()
3820            .into_iter()
3821            .map(|opt| opt.map(SharedString::from))
3822            .collect::<Vec<_>>();
3823
3824        let mut conflicts_changed = false;
3825
3826        // Record the merge state for newly conflicted paths
3827        for path in &current_conflicted_paths {
3828            if self.merge_heads_by_conflicted_path.get(&path).is_none() {
3829                conflicts_changed = true;
3830                self.merge_heads_by_conflicted_path
3831                    .insert(path.clone(), heads.clone());
3832            }
3833        }
3834
3835        // Clear state for paths that are no longer conflicted and for which the merge heads have changed
3836        self.merge_heads_by_conflicted_path
3837            .retain(|path, old_merge_heads| {
3838                let keep = current_conflicted_paths.contains(path)
3839                    || (old_merge_heads == &heads
3840                        && old_merge_heads.iter().any(|head| head.is_some()));
3841                if !keep {
3842                    conflicts_changed = true;
3843                }
3844                keep
3845            });
3846
3847        Ok(conflicts_changed)
3848    }
3849}
3850
3851impl Repository {
3852    pub fn is_trusted(&self) -> bool {
3853        match self.repository_state.peek() {
3854            Some(Ok(RepositoryState::Local(state))) => state.backend.is_trusted(),
3855            _ => false,
3856        }
3857    }
3858
3859    pub fn snapshot(&self) -> RepositorySnapshot {
3860        self.snapshot.clone()
3861    }
3862
3863    pub fn pending_ops(&self) -> impl Iterator<Item = PendingOps> + '_ {
3864        self.pending_ops.iter().cloned()
3865    }
3866
3867    pub fn pending_ops_summary(&self) -> PathSummary<PendingOpsSummary> {
3868        self.pending_ops.summary().clone()
3869    }
3870
3871    pub fn pending_ops_for_path(&self, path: &RepoPath) -> Option<PendingOps> {
3872        self.pending_ops
3873            .get(&PathKey(path.as_ref().clone()), ())
3874            .cloned()
3875    }
3876
3877    fn local(
3878        id: RepositoryId,
3879        work_directory_abs_path: Arc<Path>,
3880        original_repo_abs_path: Arc<Path>,
3881        dot_git_abs_path: Arc<Path>,
3882        project_environment: WeakEntity<ProjectEnvironment>,
3883        fs: Arc<dyn Fs>,
3884        is_trusted: bool,
3885        git_store: WeakEntity<GitStore>,
3886        cx: &mut Context<Self>,
3887    ) -> Self {
3888        let snapshot = RepositorySnapshot::empty(
3889            id,
3890            work_directory_abs_path.clone(),
3891            Some(original_repo_abs_path),
3892            PathStyle::local(),
3893        );
3894        let state = cx
3895            .spawn(async move |_, cx| {
3896                LocalRepositoryState::new(
3897                    work_directory_abs_path,
3898                    dot_git_abs_path,
3899                    project_environment,
3900                    fs,
3901                    is_trusted,
3902                    cx,
3903                )
3904                .await
3905                .map_err(|err| err.to_string())
3906            })
3907            .shared();
3908        let job_sender = Repository::spawn_local_git_worker(state.clone(), cx);
3909        let state = cx
3910            .spawn(async move |_, _| {
3911                let state = state.await?;
3912                Ok(RepositoryState::Local(state))
3913            })
3914            .shared();
3915
3916        cx.subscribe_self(move |this, event: &RepositoryEvent, _| match event {
3917            RepositoryEvent::BranchChanged => {
3918                if this.scan_id > 1 {
3919                    this.initial_graph_data.clear();
3920                }
3921            }
3922            _ => {}
3923        })
3924        .detach();
3925
3926        Repository {
3927            this: cx.weak_entity(),
3928            git_store,
3929            snapshot,
3930            pending_ops: Default::default(),
3931            repository_state: state,
3932            commit_message_buffer: None,
3933            askpass_delegates: Default::default(),
3934            paths_needing_status_update: Default::default(),
3935            latest_askpass_id: 0,
3936            job_sender,
3937            job_id: 0,
3938            active_jobs: Default::default(),
3939            initial_graph_data: Default::default(),
3940            commit_data: Default::default(),
3941            graph_commit_data_handler: GraphCommitHandlerState::Closed,
3942        }
3943    }
3944
3945    fn remote(
3946        id: RepositoryId,
3947        work_directory_abs_path: Arc<Path>,
3948        original_repo_abs_path: Option<Arc<Path>>,
3949        path_style: PathStyle,
3950        project_id: ProjectId,
3951        client: AnyProtoClient,
3952        git_store: WeakEntity<GitStore>,
3953        cx: &mut Context<Self>,
3954    ) -> Self {
3955        let snapshot = RepositorySnapshot::empty(
3956            id,
3957            work_directory_abs_path,
3958            original_repo_abs_path,
3959            path_style,
3960        );
3961        let repository_state = RemoteRepositoryState { project_id, client };
3962        let job_sender = Self::spawn_remote_git_worker(repository_state.clone(), cx);
3963        let repository_state = Task::ready(Ok(RepositoryState::Remote(repository_state))).shared();
3964        Self {
3965            this: cx.weak_entity(),
3966            snapshot,
3967            commit_message_buffer: None,
3968            git_store,
3969            pending_ops: Default::default(),
3970            paths_needing_status_update: Default::default(),
3971            job_sender,
3972            repository_state,
3973            askpass_delegates: Default::default(),
3974            latest_askpass_id: 0,
3975            active_jobs: Default::default(),
3976            job_id: 0,
3977            initial_graph_data: Default::default(),
3978            commit_data: Default::default(),
3979            graph_commit_data_handler: GraphCommitHandlerState::Closed,
3980        }
3981    }
3982
3983    pub fn git_store(&self) -> Option<Entity<GitStore>> {
3984        self.git_store.upgrade()
3985    }
3986
3987    fn reload_buffer_diff_bases(&mut self, cx: &mut Context<Self>) {
3988        let this = cx.weak_entity();
3989        let git_store = self.git_store.clone();
3990        let _ = self.send_keyed_job(
3991            Some(GitJobKey::ReloadBufferDiffBases),
3992            None,
3993            |state, mut cx| async move {
3994                let RepositoryState::Local(LocalRepositoryState { backend, .. }) = state else {
3995                    log::error!("tried to recompute diffs for a non-local repository");
3996                    return Ok(());
3997                };
3998
3999                let Some(this) = this.upgrade() else {
4000                    return Ok(());
4001                };
4002
4003                let repo_diff_state_updates = this.update(&mut cx, |this, cx| {
4004                    git_store.update(cx, |git_store, cx| {
4005                        git_store
4006                            .diffs
4007                            .iter()
4008                            .filter_map(|(buffer_id, diff_state)| {
4009                                let buffer_store = git_store.buffer_store.read(cx);
4010                                let buffer = buffer_store.get(*buffer_id)?;
4011                                let file = File::from_dyn(buffer.read(cx).file())?;
4012                                let abs_path = file.worktree.read(cx).absolutize(&file.path);
4013                                let repo_path = this.abs_path_to_repo_path(&abs_path)?;
4014                                log::debug!(
4015                                    "start reload diff bases for repo path {}",
4016                                    repo_path.as_unix_str()
4017                                );
4018                                diff_state.update(cx, |diff_state, _| {
4019                                    let has_unstaged_diff = diff_state
4020                                        .unstaged_diff
4021                                        .as_ref()
4022                                        .is_some_and(|diff| diff.is_upgradable());
4023                                    let has_uncommitted_diff = diff_state
4024                                        .uncommitted_diff
4025                                        .as_ref()
4026                                        .is_some_and(|set| set.is_upgradable());
4027
4028                                    Some((
4029                                        buffer,
4030                                        repo_path,
4031                                        has_unstaged_diff.then(|| diff_state.index_text.clone()),
4032                                        has_uncommitted_diff.then(|| diff_state.head_text.clone()),
4033                                    ))
4034                                })
4035                            })
4036                            .collect::<Vec<_>>()
4037                    })
4038                })?;
4039
4040                let buffer_diff_base_changes = cx
4041                    .background_spawn(async move {
4042                        let mut changes = Vec::new();
4043                        for (buffer, repo_path, current_index_text, current_head_text) in
4044                            &repo_diff_state_updates
4045                        {
4046                            let index_text = if current_index_text.is_some() {
4047                                backend.load_index_text(repo_path.clone()).await
4048                            } else {
4049                                None
4050                            };
4051                            let head_text = if current_head_text.is_some() {
4052                                backend.load_committed_text(repo_path.clone()).await
4053                            } else {
4054                                None
4055                            };
4056
4057                            let change =
4058                                match (current_index_text.as_ref(), current_head_text.as_ref()) {
4059                                    (Some(current_index), Some(current_head)) => {
4060                                        let index_changed =
4061                                            index_text.as_deref() != current_index.as_deref();
4062                                        let head_changed =
4063                                            head_text.as_deref() != current_head.as_deref();
4064                                        if index_changed && head_changed {
4065                                            if index_text == head_text {
4066                                                Some(DiffBasesChange::SetBoth(head_text))
4067                                            } else {
4068                                                Some(DiffBasesChange::SetEach {
4069                                                    index: index_text,
4070                                                    head: head_text,
4071                                                })
4072                                            }
4073                                        } else if index_changed {
4074                                            Some(DiffBasesChange::SetIndex(index_text))
4075                                        } else if head_changed {
4076                                            Some(DiffBasesChange::SetHead(head_text))
4077                                        } else {
4078                                            None
4079                                        }
4080                                    }
4081                                    (Some(current_index), None) => {
4082                                        let index_changed =
4083                                            index_text.as_deref() != current_index.as_deref();
4084                                        index_changed
4085                                            .then_some(DiffBasesChange::SetIndex(index_text))
4086                                    }
4087                                    (None, Some(current_head)) => {
4088                                        let head_changed =
4089                                            head_text.as_deref() != current_head.as_deref();
4090                                        head_changed.then_some(DiffBasesChange::SetHead(head_text))
4091                                    }
4092                                    (None, None) => None,
4093                                };
4094
4095                            changes.push((buffer.clone(), change))
4096                        }
4097                        changes
4098                    })
4099                    .await;
4100
4101                git_store.update(&mut cx, |git_store, cx| {
4102                    for (buffer, diff_bases_change) in buffer_diff_base_changes {
4103                        let buffer_snapshot = buffer.read(cx).text_snapshot();
4104                        let buffer_id = buffer_snapshot.remote_id();
4105                        let Some(diff_state) = git_store.diffs.get(&buffer_id) else {
4106                            continue;
4107                        };
4108
4109                        let downstream_client = git_store.downstream_client();
4110                        diff_state.update(cx, |diff_state, cx| {
4111                            use proto::update_diff_bases::Mode;
4112
4113                            if let Some((diff_bases_change, (client, project_id))) =
4114                                diff_bases_change.clone().zip(downstream_client)
4115                            {
4116                                let (staged_text, committed_text, mode) = match diff_bases_change {
4117                                    DiffBasesChange::SetIndex(index) => {
4118                                        (index, None, Mode::IndexOnly)
4119                                    }
4120                                    DiffBasesChange::SetHead(head) => (None, head, Mode::HeadOnly),
4121                                    DiffBasesChange::SetEach { index, head } => {
4122                                        (index, head, Mode::IndexAndHead)
4123                                    }
4124                                    DiffBasesChange::SetBoth(text) => {
4125                                        (None, text, Mode::IndexMatchesHead)
4126                                    }
4127                                };
4128                                client
4129                                    .send(proto::UpdateDiffBases {
4130                                        project_id: project_id.to_proto(),
4131                                        buffer_id: buffer_id.to_proto(),
4132                                        staged_text,
4133                                        committed_text,
4134                                        mode: mode as i32,
4135                                    })
4136                                    .log_err();
4137                            }
4138
4139                            diff_state.diff_bases_changed(buffer_snapshot, diff_bases_change, cx);
4140                        });
4141                    }
4142                })
4143            },
4144        );
4145    }
4146
4147    pub fn send_job<F, Fut, R>(
4148        &mut self,
4149        status: Option<SharedString>,
4150        job: F,
4151    ) -> oneshot::Receiver<R>
4152    where
4153        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
4154        Fut: Future<Output = R> + 'static,
4155        R: Send + 'static,
4156    {
4157        self.send_keyed_job(None, status, job)
4158    }
4159
4160    fn send_keyed_job<F, Fut, R>(
4161        &mut self,
4162        key: Option<GitJobKey>,
4163        status: Option<SharedString>,
4164        job: F,
4165    ) -> oneshot::Receiver<R>
4166    where
4167        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
4168        Fut: Future<Output = R> + 'static,
4169        R: Send + 'static,
4170    {
4171        let (result_tx, result_rx) = futures::channel::oneshot::channel();
4172        let job_id = post_inc(&mut self.job_id);
4173        let this = self.this.clone();
4174        self.job_sender
4175            .unbounded_send(GitJob {
4176                key,
4177                job: Box::new(move |state, cx: &mut AsyncApp| {
4178                    let job = job(state, cx.clone());
4179                    cx.spawn(async move |cx| {
4180                        if let Some(s) = status.clone() {
4181                            this.update(cx, |this, cx| {
4182                                this.active_jobs.insert(
4183                                    job_id,
4184                                    JobInfo {
4185                                        start: Instant::now(),
4186                                        message: s.clone(),
4187                                    },
4188                                );
4189
4190                                cx.notify();
4191                            })
4192                            .ok();
4193                        }
4194                        let result = job.await;
4195
4196                        this.update(cx, |this, cx| {
4197                            this.active_jobs.remove(&job_id);
4198                            cx.notify();
4199                        })
4200                        .ok();
4201
4202                        result_tx.send(result).ok();
4203                    })
4204                }),
4205            })
4206            .ok();
4207        result_rx
4208    }
4209
4210    pub fn set_as_active_repository(&self, cx: &mut Context<Self>) {
4211        let Some(git_store) = self.git_store.upgrade() else {
4212            return;
4213        };
4214        let entity = cx.entity();
4215        git_store.update(cx, |git_store, cx| {
4216            let Some((&id, _)) = git_store
4217                .repositories
4218                .iter()
4219                .find(|(_, handle)| *handle == &entity)
4220            else {
4221                return;
4222            };
4223            git_store.active_repo_id = Some(id);
4224            cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
4225        });
4226    }
4227
4228    pub fn cached_status(&self) -> impl '_ + Iterator<Item = StatusEntry> {
4229        self.snapshot.status()
4230    }
4231
4232    pub fn diff_stat_for_path(&self, path: &RepoPath) -> Option<DiffStat> {
4233        self.snapshot.diff_stat_for_path(path)
4234    }
4235
4236    pub fn cached_stash(&self) -> GitStash {
4237        self.snapshot.stash_entries.clone()
4238    }
4239
4240    pub fn repo_path_to_project_path(&self, path: &RepoPath, cx: &App) -> Option<ProjectPath> {
4241        let git_store = self.git_store.upgrade()?;
4242        let worktree_store = git_store.read(cx).worktree_store.read(cx);
4243        let abs_path = self.snapshot.repo_path_to_abs_path(path);
4244        let abs_path = SanitizedPath::new(&abs_path);
4245        let (worktree, relative_path) = worktree_store.find_worktree(abs_path, cx)?;
4246        Some(ProjectPath {
4247            worktree_id: worktree.read(cx).id(),
4248            path: relative_path,
4249        })
4250    }
4251
4252    pub fn project_path_to_repo_path(&self, path: &ProjectPath, cx: &App) -> Option<RepoPath> {
4253        let git_store = self.git_store.upgrade()?;
4254        let worktree_store = git_store.read(cx).worktree_store.read(cx);
4255        let abs_path = worktree_store.absolutize(path, cx)?;
4256        self.snapshot.abs_path_to_repo_path(&abs_path)
4257    }
4258
4259    pub fn contains_sub_repo(&self, other: &Entity<Self>, cx: &App) -> bool {
4260        other
4261            .read(cx)
4262            .snapshot
4263            .work_directory_abs_path
4264            .starts_with(&self.snapshot.work_directory_abs_path)
4265    }
4266
4267    pub fn open_commit_buffer(
4268        &mut self,
4269        languages: Option<Arc<LanguageRegistry>>,
4270        buffer_store: Entity<BufferStore>,
4271        cx: &mut Context<Self>,
4272    ) -> Task<Result<Entity<Buffer>>> {
4273        let id = self.id;
4274        if let Some(buffer) = self.commit_message_buffer.clone() {
4275            return Task::ready(Ok(buffer));
4276        }
4277        let this = cx.weak_entity();
4278
4279        let rx = self.send_job(None, move |state, mut cx| async move {
4280            let Some(this) = this.upgrade() else {
4281                bail!("git store was dropped");
4282            };
4283            match state {
4284                RepositoryState::Local(..) => {
4285                    this.update(&mut cx, |_, cx| {
4286                        Self::open_local_commit_buffer(languages, buffer_store, cx)
4287                    })
4288                    .await
4289                }
4290                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
4291                    let request = client.request(proto::OpenCommitMessageBuffer {
4292                        project_id: project_id.0,
4293                        repository_id: id.to_proto(),
4294                    });
4295                    let response = request.await.context("requesting to open commit buffer")?;
4296                    let buffer_id = BufferId::new(response.buffer_id)?;
4297                    let buffer = buffer_store
4298                        .update(&mut cx, |buffer_store, cx| {
4299                            buffer_store.wait_for_remote_buffer(buffer_id, cx)
4300                        })
4301                        .await?;
4302                    if let Some(language_registry) = languages {
4303                        let git_commit_language =
4304                            language_registry.language_for_name("Git Commit").await?;
4305                        buffer.update(&mut cx, |buffer, cx| {
4306                            buffer.set_language(Some(git_commit_language), cx);
4307                        });
4308                    }
4309                    this.update(&mut cx, |this, _| {
4310                        this.commit_message_buffer = Some(buffer.clone());
4311                    });
4312                    Ok(buffer)
4313                }
4314            }
4315        });
4316
4317        cx.spawn(|_, _: &mut AsyncApp| async move { rx.await? })
4318    }
4319
4320    fn open_local_commit_buffer(
4321        language_registry: Option<Arc<LanguageRegistry>>,
4322        buffer_store: Entity<BufferStore>,
4323        cx: &mut Context<Self>,
4324    ) -> Task<Result<Entity<Buffer>>> {
4325        cx.spawn(async move |repository, cx| {
4326            let git_commit_language = match language_registry {
4327                Some(language_registry) => {
4328                    Some(language_registry.language_for_name("Git Commit").await?)
4329                }
4330                None => None,
4331            };
4332            let buffer = buffer_store
4333                .update(cx, |buffer_store, cx| {
4334                    buffer_store.create_buffer(git_commit_language, false, cx)
4335                })
4336                .await?;
4337
4338            repository.update(cx, |repository, _| {
4339                repository.commit_message_buffer = Some(buffer.clone());
4340            })?;
4341            Ok(buffer)
4342        })
4343    }
4344
4345    pub fn checkout_files(
4346        &mut self,
4347        commit: &str,
4348        paths: Vec<RepoPath>,
4349        cx: &mut Context<Self>,
4350    ) -> Task<Result<()>> {
4351        let commit = commit.to_string();
4352        let id = self.id;
4353
4354        self.spawn_job_with_tracking(
4355            paths.clone(),
4356            pending_op::GitStatus::Reverted,
4357            cx,
4358            async move |this, cx| {
4359                this.update(cx, |this, _cx| {
4360                    this.send_job(
4361                        Some(format!("git checkout {}", commit).into()),
4362                        move |git_repo, _| async move {
4363                            match git_repo {
4364                                RepositoryState::Local(LocalRepositoryState {
4365                                    backend,
4366                                    environment,
4367                                    ..
4368                                }) => {
4369                                    backend
4370                                        .checkout_files(commit, paths, environment.clone())
4371                                        .await
4372                                }
4373                                RepositoryState::Remote(RemoteRepositoryState {
4374                                    project_id,
4375                                    client,
4376                                }) => {
4377                                    client
4378                                        .request(proto::GitCheckoutFiles {
4379                                            project_id: project_id.0,
4380                                            repository_id: id.to_proto(),
4381                                            commit,
4382                                            paths: paths
4383                                                .into_iter()
4384                                                .map(|p| p.to_proto())
4385                                                .collect(),
4386                                        })
4387                                        .await?;
4388
4389                                    Ok(())
4390                                }
4391                            }
4392                        },
4393                    )
4394                })?
4395                .await?
4396            },
4397        )
4398    }
4399
4400    pub fn reset(
4401        &mut self,
4402        commit: String,
4403        reset_mode: ResetMode,
4404        _cx: &mut App,
4405    ) -> oneshot::Receiver<Result<()>> {
4406        let id = self.id;
4407
4408        self.send_job(None, move |git_repo, _| async move {
4409            match git_repo {
4410                RepositoryState::Local(LocalRepositoryState {
4411                    backend,
4412                    environment,
4413                    ..
4414                }) => backend.reset(commit, reset_mode, environment).await,
4415                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
4416                    client
4417                        .request(proto::GitReset {
4418                            project_id: project_id.0,
4419                            repository_id: id.to_proto(),
4420                            commit,
4421                            mode: match reset_mode {
4422                                ResetMode::Soft => git_reset::ResetMode::Soft.into(),
4423                                ResetMode::Mixed => git_reset::ResetMode::Mixed.into(),
4424                            },
4425                        })
4426                        .await?;
4427
4428                    Ok(())
4429                }
4430            }
4431        })
4432    }
4433
4434    pub fn show(&mut self, commit: String) -> oneshot::Receiver<Result<CommitDetails>> {
4435        let id = self.id;
4436        self.send_job(None, move |git_repo, _cx| async move {
4437            match git_repo {
4438                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
4439                    backend.show(commit).await
4440                }
4441                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
4442                    let resp = client
4443                        .request(proto::GitShow {
4444                            project_id: project_id.0,
4445                            repository_id: id.to_proto(),
4446                            commit,
4447                        })
4448                        .await?;
4449
4450                    Ok(CommitDetails {
4451                        sha: resp.sha.into(),
4452                        message: resp.message.into(),
4453                        commit_timestamp: resp.commit_timestamp,
4454                        author_email: resp.author_email.into(),
4455                        author_name: resp.author_name.into(),
4456                    })
4457                }
4458            }
4459        })
4460    }
4461
4462    pub fn load_commit_diff(&mut self, commit: String) -> oneshot::Receiver<Result<CommitDiff>> {
4463        let id = self.id;
4464        self.send_job(None, move |git_repo, cx| async move {
4465            match git_repo {
4466                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
4467                    backend.load_commit(commit, cx).await
4468                }
4469                RepositoryState::Remote(RemoteRepositoryState {
4470                    client, project_id, ..
4471                }) => {
4472                    let response = client
4473                        .request(proto::LoadCommitDiff {
4474                            project_id: project_id.0,
4475                            repository_id: id.to_proto(),
4476                            commit,
4477                        })
4478                        .await?;
4479                    Ok(CommitDiff {
4480                        files: response
4481                            .files
4482                            .into_iter()
4483                            .map(|file| {
4484                                Ok(CommitFile {
4485                                    path: RepoPath::from_proto(&file.path)?,
4486                                    old_text: file.old_text,
4487                                    new_text: file.new_text,
4488                                    is_binary: file.is_binary,
4489                                })
4490                            })
4491                            .collect::<Result<Vec<_>>>()?,
4492                    })
4493                }
4494            }
4495        })
4496    }
4497
4498    pub fn file_history(
4499        &mut self,
4500        path: RepoPath,
4501    ) -> oneshot::Receiver<Result<git::repository::FileHistory>> {
4502        self.file_history_paginated(path, 0, None)
4503    }
4504
4505    pub fn file_history_paginated(
4506        &mut self,
4507        path: RepoPath,
4508        skip: usize,
4509        limit: Option<usize>,
4510    ) -> oneshot::Receiver<Result<git::repository::FileHistory>> {
4511        let id = self.id;
4512        self.send_job(None, move |git_repo, _cx| async move {
4513            match git_repo {
4514                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
4515                    backend.file_history_paginated(path, skip, limit).await
4516                }
4517                RepositoryState::Remote(RemoteRepositoryState { client, project_id }) => {
4518                    let response = client
4519                        .request(proto::GitFileHistory {
4520                            project_id: project_id.0,
4521                            repository_id: id.to_proto(),
4522                            path: path.to_proto(),
4523                            skip: skip as u64,
4524                            limit: limit.map(|l| l as u64),
4525                        })
4526                        .await?;
4527                    Ok(git::repository::FileHistory {
4528                        entries: response
4529                            .entries
4530                            .into_iter()
4531                            .map(|entry| git::repository::FileHistoryEntry {
4532                                sha: entry.sha.into(),
4533                                subject: entry.subject.into(),
4534                                message: entry.message.into(),
4535                                commit_timestamp: entry.commit_timestamp,
4536                                author_name: entry.author_name.into(),
4537                                author_email: entry.author_email.into(),
4538                            })
4539                            .collect(),
4540                        path: RepoPath::from_proto(&response.path)?,
4541                    })
4542                }
4543            }
4544        })
4545    }
4546
4547    pub fn get_graph_data(
4548        &self,
4549        log_source: LogSource,
4550        log_order: LogOrder,
4551    ) -> Option<&InitialGitGraphData> {
4552        self.initial_graph_data.get(&(log_source, log_order))
4553    }
4554
4555    pub fn graph_data(
4556        &mut self,
4557        log_source: LogSource,
4558        log_order: LogOrder,
4559        range: Range<usize>,
4560        cx: &mut Context<Self>,
4561    ) -> GraphDataResponse<'_> {
4562        let initial_commit_data = self
4563            .initial_graph_data
4564            .entry((log_source.clone(), log_order))
4565            .or_insert_with(|| {
4566                let state = self.repository_state.clone();
4567                let log_source = log_source.clone();
4568
4569                let fetch_task = cx.spawn(async move |repository, cx| {
4570                    let state = state.await;
4571                    let result = match state {
4572                        Ok(RepositoryState::Local(LocalRepositoryState { backend, .. })) => {
4573                            Self::local_git_graph_data(
4574                                repository.clone(),
4575                                backend,
4576                                log_source.clone(),
4577                                log_order,
4578                                cx,
4579                            )
4580                            .await
4581                        }
4582                        Ok(RepositoryState::Remote(_)) => {
4583                            Err("Git graph is not supported for collab yet".into())
4584                        }
4585                        Err(e) => Err(SharedString::from(e)),
4586                    };
4587
4588                    if let Err(fetch_task_error) = result {
4589                        repository
4590                            .update(cx, |repository, _| {
4591                                if let Some(data) = repository
4592                                    .initial_graph_data
4593                                    .get_mut(&(log_source, log_order))
4594                                {
4595                                    data.error = Some(fetch_task_error);
4596                                } else {
4597                                    debug_panic!(
4598                                        "This task would be dropped if this entry doesn't exist"
4599                                    );
4600                                }
4601                            })
4602                            .ok();
4603                    }
4604                });
4605
4606                InitialGitGraphData {
4607                    fetch_task,
4608                    error: None,
4609                    commit_data: Vec::new(),
4610                    commit_oid_to_index: HashMap::default(),
4611                }
4612            });
4613
4614        let max_start = initial_commit_data.commit_data.len().saturating_sub(1);
4615        let max_end = initial_commit_data.commit_data.len();
4616
4617        GraphDataResponse {
4618            commits: &initial_commit_data.commit_data
4619                [range.start.min(max_start)..range.end.min(max_end)],
4620            is_loading: !initial_commit_data.fetch_task.is_ready(),
4621            error: initial_commit_data.error.clone(),
4622        }
4623    }
4624
4625    async fn local_git_graph_data(
4626        this: WeakEntity<Self>,
4627        backend: Arc<dyn GitRepository>,
4628        log_source: LogSource,
4629        log_order: LogOrder,
4630        cx: &mut AsyncApp,
4631    ) -> Result<(), SharedString> {
4632        let (request_tx, request_rx) =
4633            smol::channel::unbounded::<Vec<Arc<InitialGraphCommitData>>>();
4634
4635        let task = cx.background_executor().spawn({
4636            let log_source = log_source.clone();
4637            async move {
4638                backend
4639                    .initial_graph_data(log_source, log_order, request_tx)
4640                    .await
4641                    .map_err(|err| SharedString::from(err.to_string()))
4642            }
4643        });
4644
4645        let graph_data_key = (log_source, log_order);
4646
4647        while let Ok(initial_graph_commit_data) = request_rx.recv().await {
4648            this.update(cx, |repository, cx| {
4649                let graph_data = repository
4650                    .initial_graph_data
4651                    .entry(graph_data_key.clone())
4652                    .and_modify(|graph_data| {
4653                        for commit_data in initial_graph_commit_data {
4654                            graph_data
4655                                .commit_oid_to_index
4656                                .insert(commit_data.sha, graph_data.commit_data.len());
4657                            graph_data.commit_data.push(commit_data);
4658
4659                            cx.emit(RepositoryEvent::GraphEvent(
4660                                graph_data_key.clone(),
4661                                GitGraphEvent::CountUpdated(graph_data.commit_data.len()),
4662                            ));
4663                        }
4664                    });
4665
4666                match &graph_data {
4667                    Entry::Occupied(_) => {}
4668                    Entry::Vacant(_) => {
4669                        debug_panic!("This task should be dropped if data doesn't exist");
4670                    }
4671                }
4672            })
4673            .ok();
4674        }
4675
4676        task.await?;
4677        Ok(())
4678    }
4679
4680    pub fn fetch_commit_data(&mut self, sha: Oid, cx: &mut Context<Self>) -> &CommitDataState {
4681        if !self.commit_data.contains_key(&sha) {
4682            match &self.graph_commit_data_handler {
4683                GraphCommitHandlerState::Open(handler) => {
4684                    if handler.commit_data_request.try_send(sha).is_ok() {
4685                        let old_value = self.commit_data.insert(sha, CommitDataState::Loading);
4686                        debug_assert!(old_value.is_none(), "We should never overwrite commit data");
4687                    }
4688                }
4689                GraphCommitHandlerState::Closed => {
4690                    self.open_graph_commit_data_handler(cx);
4691                }
4692                GraphCommitHandlerState::Starting => {}
4693            }
4694        }
4695
4696        self.commit_data
4697            .get(&sha)
4698            .unwrap_or(&CommitDataState::Loading)
4699    }
4700
4701    fn open_graph_commit_data_handler(&mut self, cx: &mut Context<Self>) {
4702        self.graph_commit_data_handler = GraphCommitHandlerState::Starting;
4703
4704        let state = self.repository_state.clone();
4705        let (result_tx, result_rx) = smol::channel::bounded::<(Oid, GraphCommitData)>(64);
4706        let (request_tx, request_rx) = smol::channel::unbounded::<Oid>();
4707
4708        let foreground_task = cx.spawn(async move |this, cx| {
4709            while let Ok((sha, commit_data)) = result_rx.recv().await {
4710                let result = this.update(cx, |this, cx| {
4711                    let old_value = this
4712                        .commit_data
4713                        .insert(sha, CommitDataState::Loaded(Arc::new(commit_data)));
4714                    debug_assert!(
4715                        !matches!(old_value, Some(CommitDataState::Loaded(_))),
4716                        "We should never overwrite commit data"
4717                    );
4718
4719                    cx.notify();
4720                });
4721                if result.is_err() {
4722                    break;
4723                }
4724            }
4725
4726            this.update(cx, |this, _cx| {
4727                this.graph_commit_data_handler = GraphCommitHandlerState::Closed;
4728            })
4729            .ok();
4730        });
4731
4732        let request_tx_for_handler = request_tx;
4733        let background_executor = cx.background_executor().clone();
4734
4735        cx.background_spawn(async move {
4736            let backend = match state.await {
4737                Ok(RepositoryState::Local(LocalRepositoryState { backend, .. })) => backend,
4738                Ok(RepositoryState::Remote(_)) => {
4739                    log::error!("commit_data_reader not supported for remote repositories");
4740                    return;
4741                }
4742                Err(error) => {
4743                    log::error!("failed to get repository state: {error}");
4744                    return;
4745                }
4746            };
4747
4748            let reader = match backend.commit_data_reader() {
4749                Ok(reader) => reader,
4750                Err(error) => {
4751                    log::error!("failed to create commit data reader: {error:?}");
4752                    return;
4753                }
4754            };
4755
4756            loop {
4757                let timeout = background_executor.timer(std::time::Duration::from_secs(10));
4758
4759                futures::select_biased! {
4760                    sha = futures::FutureExt::fuse(request_rx.recv()) => {
4761                        let Ok(sha) = sha else {
4762                            break;
4763                        };
4764
4765                        match reader.read(sha).await {
4766                            Ok(commit_data) => {
4767                                if result_tx.send((sha, commit_data)).await.is_err() {
4768                                    break;
4769                                }
4770                            }
4771                            Err(error) => {
4772                                log::error!("failed to read commit data for {sha}: {error:?}");
4773                            }
4774                        }
4775                    }
4776                    _ = futures::FutureExt::fuse(timeout) => {
4777                        break;
4778                    }
4779                }
4780            }
4781
4782            drop(result_tx);
4783        })
4784        .detach();
4785
4786        self.graph_commit_data_handler = GraphCommitHandlerState::Open(GraphCommitDataHandler {
4787            _task: foreground_task,
4788            commit_data_request: request_tx_for_handler,
4789        });
4790    }
4791
4792    fn buffer_store(&self, cx: &App) -> Option<Entity<BufferStore>> {
4793        Some(self.git_store.upgrade()?.read(cx).buffer_store.clone())
4794    }
4795
4796    fn save_buffers<'a>(
4797        &self,
4798        entries: impl IntoIterator<Item = &'a RepoPath>,
4799        cx: &mut Context<Self>,
4800    ) -> Vec<Task<anyhow::Result<()>>> {
4801        let mut save_futures = Vec::new();
4802        if let Some(buffer_store) = self.buffer_store(cx) {
4803            buffer_store.update(cx, |buffer_store, cx| {
4804                for path in entries {
4805                    let Some(project_path) = self.repo_path_to_project_path(path, cx) else {
4806                        continue;
4807                    };
4808                    if let Some(buffer) = buffer_store.get_by_path(&project_path)
4809                        && buffer
4810                            .read(cx)
4811                            .file()
4812                            .is_some_and(|file| file.disk_state().exists())
4813                        && buffer.read(cx).has_unsaved_edits()
4814                    {
4815                        save_futures.push(buffer_store.save_buffer(buffer, cx));
4816                    }
4817                }
4818            })
4819        }
4820        save_futures
4821    }
4822
4823    pub fn stage_entries(
4824        &mut self,
4825        entries: Vec<RepoPath>,
4826        cx: &mut Context<Self>,
4827    ) -> Task<anyhow::Result<()>> {
4828        self.stage_or_unstage_entries(true, entries, cx)
4829    }
4830
4831    pub fn unstage_entries(
4832        &mut self,
4833        entries: Vec<RepoPath>,
4834        cx: &mut Context<Self>,
4835    ) -> Task<anyhow::Result<()>> {
4836        self.stage_or_unstage_entries(false, entries, cx)
4837    }
4838
4839    fn stage_or_unstage_entries(
4840        &mut self,
4841        stage: bool,
4842        entries: Vec<RepoPath>,
4843        cx: &mut Context<Self>,
4844    ) -> Task<anyhow::Result<()>> {
4845        if entries.is_empty() {
4846            return Task::ready(Ok(()));
4847        }
4848        let Some(git_store) = self.git_store.upgrade() else {
4849            return Task::ready(Ok(()));
4850        };
4851        let id = self.id;
4852        let save_tasks = self.save_buffers(&entries, cx);
4853        let paths = entries
4854            .iter()
4855            .map(|p| p.as_unix_str())
4856            .collect::<Vec<_>>()
4857            .join(" ");
4858        let status = if stage {
4859            format!("git add {paths}")
4860        } else {
4861            format!("git reset {paths}")
4862        };
4863        let job_key = GitJobKey::WriteIndex(entries.clone());
4864
4865        self.spawn_job_with_tracking(
4866            entries.clone(),
4867            if stage {
4868                pending_op::GitStatus::Staged
4869            } else {
4870                pending_op::GitStatus::Unstaged
4871            },
4872            cx,
4873            async move |this, cx| {
4874                for save_task in save_tasks {
4875                    save_task.await?;
4876                }
4877
4878                this.update(cx, |this, cx| {
4879                    let weak_this = cx.weak_entity();
4880                    this.send_keyed_job(
4881                        Some(job_key),
4882                        Some(status.into()),
4883                        move |git_repo, mut cx| async move {
4884                            let hunk_staging_operation_counts = weak_this
4885                                .update(&mut cx, |this, cx| {
4886                                    let mut hunk_staging_operation_counts = HashMap::default();
4887                                    for path in &entries {
4888                                        let Some(project_path) =
4889                                            this.repo_path_to_project_path(path, cx)
4890                                        else {
4891                                            continue;
4892                                        };
4893                                        let Some(buffer) = git_store
4894                                            .read(cx)
4895                                            .buffer_store
4896                                            .read(cx)
4897                                            .get_by_path(&project_path)
4898                                        else {
4899                                            continue;
4900                                        };
4901                                        let Some(diff_state) = git_store
4902                                            .read(cx)
4903                                            .diffs
4904                                            .get(&buffer.read(cx).remote_id())
4905                                            .cloned()
4906                                        else {
4907                                            continue;
4908                                        };
4909                                        let Some(uncommitted_diff) =
4910                                            diff_state.read(cx).uncommitted_diff.as_ref().and_then(
4911                                                |uncommitted_diff| uncommitted_diff.upgrade(),
4912                                            )
4913                                        else {
4914                                            continue;
4915                                        };
4916                                        let buffer_snapshot = buffer.read(cx).text_snapshot();
4917                                        let file_exists = buffer
4918                                            .read(cx)
4919                                            .file()
4920                                            .is_some_and(|file| file.disk_state().exists());
4921                                        let hunk_staging_operation_count =
4922                                            diff_state.update(cx, |diff_state, cx| {
4923                                                uncommitted_diff.update(
4924                                                    cx,
4925                                                    |uncommitted_diff, cx| {
4926                                                        uncommitted_diff
4927                                                            .stage_or_unstage_all_hunks(
4928                                                                stage,
4929                                                                &buffer_snapshot,
4930                                                                file_exists,
4931                                                                cx,
4932                                                            );
4933                                                    },
4934                                                );
4935
4936                                                diff_state.hunk_staging_operation_count += 1;
4937                                                diff_state.hunk_staging_operation_count
4938                                            });
4939                                        hunk_staging_operation_counts.insert(
4940                                            diff_state.downgrade(),
4941                                            hunk_staging_operation_count,
4942                                        );
4943                                    }
4944                                    hunk_staging_operation_counts
4945                                })
4946                                .unwrap_or_default();
4947
4948                            let result = match git_repo {
4949                                RepositoryState::Local(LocalRepositoryState {
4950                                    backend,
4951                                    environment,
4952                                    ..
4953                                }) => {
4954                                    if stage {
4955                                        backend.stage_paths(entries, environment.clone()).await
4956                                    } else {
4957                                        backend.unstage_paths(entries, environment.clone()).await
4958                                    }
4959                                }
4960                                RepositoryState::Remote(RemoteRepositoryState {
4961                                    project_id,
4962                                    client,
4963                                }) => {
4964                                    if stage {
4965                                        client
4966                                            .request(proto::Stage {
4967                                                project_id: project_id.0,
4968                                                repository_id: id.to_proto(),
4969                                                paths: entries
4970                                                    .into_iter()
4971                                                    .map(|repo_path| repo_path.to_proto())
4972                                                    .collect(),
4973                                            })
4974                                            .await
4975                                            .context("sending stage request")
4976                                            .map(|_| ())
4977                                    } else {
4978                                        client
4979                                            .request(proto::Unstage {
4980                                                project_id: project_id.0,
4981                                                repository_id: id.to_proto(),
4982                                                paths: entries
4983                                                    .into_iter()
4984                                                    .map(|repo_path| repo_path.to_proto())
4985                                                    .collect(),
4986                                            })
4987                                            .await
4988                                            .context("sending unstage request")
4989                                            .map(|_| ())
4990                                    }
4991                                }
4992                            };
4993
4994                            for (diff_state, hunk_staging_operation_count) in
4995                                hunk_staging_operation_counts
4996                            {
4997                                diff_state
4998                                    .update(&mut cx, |diff_state, cx| {
4999                                        if result.is_ok() {
5000                                            diff_state.hunk_staging_operation_count_as_of_write =
5001                                                hunk_staging_operation_count;
5002                                        } else if let Some(uncommitted_diff) =
5003                                            &diff_state.uncommitted_diff
5004                                        {
5005                                            uncommitted_diff
5006                                                .update(cx, |uncommitted_diff, cx| {
5007                                                    uncommitted_diff.clear_pending_hunks(cx);
5008                                                })
5009                                                .ok();
5010                                        }
5011                                    })
5012                                    .ok();
5013                            }
5014
5015                            result
5016                        },
5017                    )
5018                })?
5019                .await?
5020            },
5021        )
5022    }
5023
5024    pub fn stage_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
5025        let to_stage = self
5026            .cached_status()
5027            .filter_map(|entry| {
5028                if let Some(ops) = self.pending_ops_for_path(&entry.repo_path) {
5029                    if ops.staging() || ops.staged() {
5030                        None
5031                    } else {
5032                        Some(entry.repo_path)
5033                    }
5034                } else if entry.status.staging().is_fully_staged() {
5035                    None
5036                } else {
5037                    Some(entry.repo_path)
5038                }
5039            })
5040            .collect();
5041        self.stage_or_unstage_entries(true, to_stage, cx)
5042    }
5043
5044    pub fn unstage_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
5045        let to_unstage = self
5046            .cached_status()
5047            .filter_map(|entry| {
5048                if let Some(ops) = self.pending_ops_for_path(&entry.repo_path) {
5049                    if !ops.staging() && !ops.staged() {
5050                        None
5051                    } else {
5052                        Some(entry.repo_path)
5053                    }
5054                } else if entry.status.staging().is_fully_unstaged() {
5055                    None
5056                } else {
5057                    Some(entry.repo_path)
5058                }
5059            })
5060            .collect();
5061        self.stage_or_unstage_entries(false, to_unstage, cx)
5062    }
5063
5064    pub fn stash_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
5065        let to_stash = self.cached_status().map(|entry| entry.repo_path).collect();
5066
5067        self.stash_entries(to_stash, cx)
5068    }
5069
5070    pub fn stash_entries(
5071        &mut self,
5072        entries: Vec<RepoPath>,
5073        cx: &mut Context<Self>,
5074    ) -> Task<anyhow::Result<()>> {
5075        let id = self.id;
5076
5077        cx.spawn(async move |this, cx| {
5078            this.update(cx, |this, _| {
5079                this.send_job(None, move |git_repo, _cx| async move {
5080                    match git_repo {
5081                        RepositoryState::Local(LocalRepositoryState {
5082                            backend,
5083                            environment,
5084                            ..
5085                        }) => backend.stash_paths(entries, environment).await,
5086                        RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5087                            client
5088                                .request(proto::Stash {
5089                                    project_id: project_id.0,
5090                                    repository_id: id.to_proto(),
5091                                    paths: entries
5092                                        .into_iter()
5093                                        .map(|repo_path| repo_path.to_proto())
5094                                        .collect(),
5095                                })
5096                                .await?;
5097                            Ok(())
5098                        }
5099                    }
5100                })
5101            })?
5102            .await??;
5103            Ok(())
5104        })
5105    }
5106
5107    pub fn stash_pop(
5108        &mut self,
5109        index: Option<usize>,
5110        cx: &mut Context<Self>,
5111    ) -> Task<anyhow::Result<()>> {
5112        let id = self.id;
5113        cx.spawn(async move |this, cx| {
5114            this.update(cx, |this, _| {
5115                this.send_job(None, move |git_repo, _cx| async move {
5116                    match git_repo {
5117                        RepositoryState::Local(LocalRepositoryState {
5118                            backend,
5119                            environment,
5120                            ..
5121                        }) => backend.stash_pop(index, environment).await,
5122                        RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5123                            client
5124                                .request(proto::StashPop {
5125                                    project_id: project_id.0,
5126                                    repository_id: id.to_proto(),
5127                                    stash_index: index.map(|i| i as u64),
5128                                })
5129                                .await
5130                                .context("sending stash pop request")?;
5131                            Ok(())
5132                        }
5133                    }
5134                })
5135            })?
5136            .await??;
5137            Ok(())
5138        })
5139    }
5140
5141    pub fn stash_apply(
5142        &mut self,
5143        index: Option<usize>,
5144        cx: &mut Context<Self>,
5145    ) -> Task<anyhow::Result<()>> {
5146        let id = self.id;
5147        cx.spawn(async move |this, cx| {
5148            this.update(cx, |this, _| {
5149                this.send_job(None, move |git_repo, _cx| async move {
5150                    match git_repo {
5151                        RepositoryState::Local(LocalRepositoryState {
5152                            backend,
5153                            environment,
5154                            ..
5155                        }) => backend.stash_apply(index, environment).await,
5156                        RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5157                            client
5158                                .request(proto::StashApply {
5159                                    project_id: project_id.0,
5160                                    repository_id: id.to_proto(),
5161                                    stash_index: index.map(|i| i as u64),
5162                                })
5163                                .await
5164                                .context("sending stash apply request")?;
5165                            Ok(())
5166                        }
5167                    }
5168                })
5169            })?
5170            .await??;
5171            Ok(())
5172        })
5173    }
5174
5175    pub fn stash_drop(
5176        &mut self,
5177        index: Option<usize>,
5178        cx: &mut Context<Self>,
5179    ) -> oneshot::Receiver<anyhow::Result<()>> {
5180        let id = self.id;
5181        let updates_tx = self
5182            .git_store()
5183            .and_then(|git_store| match &git_store.read(cx).state {
5184                GitStoreState::Local { downstream, .. } => downstream
5185                    .as_ref()
5186                    .map(|downstream| downstream.updates_tx.clone()),
5187                _ => None,
5188            });
5189        let this = cx.weak_entity();
5190        self.send_job(None, move |git_repo, mut cx| async move {
5191            match git_repo {
5192                RepositoryState::Local(LocalRepositoryState {
5193                    backend,
5194                    environment,
5195                    ..
5196                }) => {
5197                    // TODO would be nice to not have to do this manually
5198                    let result = backend.stash_drop(index, environment).await;
5199                    if result.is_ok()
5200                        && let Ok(stash_entries) = backend.stash_entries().await
5201                    {
5202                        let snapshot = this.update(&mut cx, |this, cx| {
5203                            this.snapshot.stash_entries = stash_entries;
5204                            cx.emit(RepositoryEvent::StashEntriesChanged);
5205                            this.snapshot.clone()
5206                        })?;
5207                        if let Some(updates_tx) = updates_tx {
5208                            updates_tx
5209                                .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
5210                                .ok();
5211                        }
5212                    }
5213
5214                    result
5215                }
5216                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5217                    client
5218                        .request(proto::StashDrop {
5219                            project_id: project_id.0,
5220                            repository_id: id.to_proto(),
5221                            stash_index: index.map(|i| i as u64),
5222                        })
5223                        .await
5224                        .context("sending stash pop request")?;
5225                    Ok(())
5226                }
5227            }
5228        })
5229    }
5230
5231    pub fn run_hook(&mut self, hook: RunHook, _cx: &mut App) -> oneshot::Receiver<Result<()>> {
5232        let id = self.id;
5233        self.send_job(
5234            Some(format!("git hook {}", hook.as_str()).into()),
5235            move |git_repo, _cx| async move {
5236                match git_repo {
5237                    RepositoryState::Local(LocalRepositoryState {
5238                        backend,
5239                        environment,
5240                        ..
5241                    }) => backend.run_hook(hook, environment.clone()).await,
5242                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5243                        client
5244                            .request(proto::RunGitHook {
5245                                project_id: project_id.0,
5246                                repository_id: id.to_proto(),
5247                                hook: hook.to_proto(),
5248                            })
5249                            .await?;
5250
5251                        Ok(())
5252                    }
5253                }
5254            },
5255        )
5256    }
5257
5258    pub fn commit(
5259        &mut self,
5260        message: SharedString,
5261        name_and_email: Option<(SharedString, SharedString)>,
5262        options: CommitOptions,
5263        askpass: AskPassDelegate,
5264        cx: &mut App,
5265    ) -> oneshot::Receiver<Result<()>> {
5266        let id = self.id;
5267        let askpass_delegates = self.askpass_delegates.clone();
5268        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5269
5270        let rx = self.run_hook(RunHook::PreCommit, cx);
5271
5272        self.send_job(Some("git commit".into()), move |git_repo, _cx| async move {
5273            rx.await??;
5274
5275            match git_repo {
5276                RepositoryState::Local(LocalRepositoryState {
5277                    backend,
5278                    environment,
5279                    ..
5280                }) => {
5281                    backend
5282                        .commit(message, name_and_email, options, askpass, environment)
5283                        .await
5284                }
5285                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5286                    askpass_delegates.lock().insert(askpass_id, askpass);
5287                    let _defer = util::defer(|| {
5288                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5289                        debug_assert!(askpass_delegate.is_some());
5290                    });
5291                    let (name, email) = name_and_email.unzip();
5292                    client
5293                        .request(proto::Commit {
5294                            project_id: project_id.0,
5295                            repository_id: id.to_proto(),
5296                            message: String::from(message),
5297                            name: name.map(String::from),
5298                            email: email.map(String::from),
5299                            options: Some(proto::commit::CommitOptions {
5300                                amend: options.amend,
5301                                signoff: options.signoff,
5302                            }),
5303                            askpass_id,
5304                        })
5305                        .await?;
5306
5307                    Ok(())
5308                }
5309            }
5310        })
5311    }
5312
5313    pub fn fetch(
5314        &mut self,
5315        fetch_options: FetchOptions,
5316        askpass: AskPassDelegate,
5317        _cx: &mut App,
5318    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
5319        let askpass_delegates = self.askpass_delegates.clone();
5320        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5321        let id = self.id;
5322
5323        self.send_job(Some("git fetch".into()), move |git_repo, cx| async move {
5324            match git_repo {
5325                RepositoryState::Local(LocalRepositoryState {
5326                    backend,
5327                    environment,
5328                    ..
5329                }) => backend.fetch(fetch_options, askpass, environment, cx).await,
5330                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5331                    askpass_delegates.lock().insert(askpass_id, askpass);
5332                    let _defer = util::defer(|| {
5333                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5334                        debug_assert!(askpass_delegate.is_some());
5335                    });
5336
5337                    let response = client
5338                        .request(proto::Fetch {
5339                            project_id: project_id.0,
5340                            repository_id: id.to_proto(),
5341                            askpass_id,
5342                            remote: fetch_options.to_proto(),
5343                        })
5344                        .await?;
5345
5346                    Ok(RemoteCommandOutput {
5347                        stdout: response.stdout,
5348                        stderr: response.stderr,
5349                    })
5350                }
5351            }
5352        })
5353    }
5354
5355    pub fn push(
5356        &mut self,
5357        branch: SharedString,
5358        remote_branch: SharedString,
5359        remote: SharedString,
5360        options: Option<PushOptions>,
5361        askpass: AskPassDelegate,
5362        cx: &mut Context<Self>,
5363    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
5364        let askpass_delegates = self.askpass_delegates.clone();
5365        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5366        let id = self.id;
5367
5368        let args = options
5369            .map(|option| match option {
5370                PushOptions::SetUpstream => " --set-upstream",
5371                PushOptions::Force => " --force-with-lease",
5372            })
5373            .unwrap_or("");
5374
5375        let updates_tx = self
5376            .git_store()
5377            .and_then(|git_store| match &git_store.read(cx).state {
5378                GitStoreState::Local { downstream, .. } => downstream
5379                    .as_ref()
5380                    .map(|downstream| downstream.updates_tx.clone()),
5381                _ => None,
5382            });
5383
5384        let this = cx.weak_entity();
5385        self.send_job(
5386            Some(format!("git push {} {} {}:{}", args, remote, branch, remote_branch).into()),
5387            move |git_repo, mut cx| async move {
5388                match git_repo {
5389                    RepositoryState::Local(LocalRepositoryState {
5390                        backend,
5391                        environment,
5392                        ..
5393                    }) => {
5394                        let result = backend
5395                            .push(
5396                                branch.to_string(),
5397                                remote_branch.to_string(),
5398                                remote.to_string(),
5399                                options,
5400                                askpass,
5401                                environment.clone(),
5402                                cx.clone(),
5403                            )
5404                            .await;
5405                        // TODO would be nice to not have to do this manually
5406                        if result.is_ok() {
5407                            let branches = backend.branches().await?;
5408                            let branch = branches.into_iter().find(|branch| branch.is_head);
5409                            log::info!("head branch after scan is {branch:?}");
5410                            let snapshot = this.update(&mut cx, |this, cx| {
5411                                this.snapshot.branch = branch;
5412                                cx.emit(RepositoryEvent::BranchChanged);
5413                                this.snapshot.clone()
5414                            })?;
5415                            if let Some(updates_tx) = updates_tx {
5416                                updates_tx
5417                                    .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
5418                                    .ok();
5419                            }
5420                        }
5421                        result
5422                    }
5423                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5424                        askpass_delegates.lock().insert(askpass_id, askpass);
5425                        let _defer = util::defer(|| {
5426                            let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5427                            debug_assert!(askpass_delegate.is_some());
5428                        });
5429                        let response = client
5430                            .request(proto::Push {
5431                                project_id: project_id.0,
5432                                repository_id: id.to_proto(),
5433                                askpass_id,
5434                                branch_name: branch.to_string(),
5435                                remote_branch_name: remote_branch.to_string(),
5436                                remote_name: remote.to_string(),
5437                                options: options.map(|options| match options {
5438                                    PushOptions::Force => proto::push::PushOptions::Force,
5439                                    PushOptions::SetUpstream => {
5440                                        proto::push::PushOptions::SetUpstream
5441                                    }
5442                                }
5443                                    as i32),
5444                            })
5445                            .await?;
5446
5447                        Ok(RemoteCommandOutput {
5448                            stdout: response.stdout,
5449                            stderr: response.stderr,
5450                        })
5451                    }
5452                }
5453            },
5454        )
5455    }
5456
5457    pub fn pull(
5458        &mut self,
5459        branch: Option<SharedString>,
5460        remote: SharedString,
5461        rebase: bool,
5462        askpass: AskPassDelegate,
5463        _cx: &mut App,
5464    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
5465        let askpass_delegates = self.askpass_delegates.clone();
5466        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
5467        let id = self.id;
5468
5469        let mut status = "git pull".to_string();
5470        if rebase {
5471            status.push_str(" --rebase");
5472        }
5473        status.push_str(&format!(" {}", remote));
5474        if let Some(b) = &branch {
5475            status.push_str(&format!(" {}", b));
5476        }
5477
5478        self.send_job(Some(status.into()), move |git_repo, cx| async move {
5479            match git_repo {
5480                RepositoryState::Local(LocalRepositoryState {
5481                    backend,
5482                    environment,
5483                    ..
5484                }) => {
5485                    backend
5486                        .pull(
5487                            branch.as_ref().map(|b| b.to_string()),
5488                            remote.to_string(),
5489                            rebase,
5490                            askpass,
5491                            environment.clone(),
5492                            cx,
5493                        )
5494                        .await
5495                }
5496                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5497                    askpass_delegates.lock().insert(askpass_id, askpass);
5498                    let _defer = util::defer(|| {
5499                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
5500                        debug_assert!(askpass_delegate.is_some());
5501                    });
5502                    let response = client
5503                        .request(proto::Pull {
5504                            project_id: project_id.0,
5505                            repository_id: id.to_proto(),
5506                            askpass_id,
5507                            rebase,
5508                            branch_name: branch.as_ref().map(|b| b.to_string()),
5509                            remote_name: remote.to_string(),
5510                        })
5511                        .await?;
5512
5513                    Ok(RemoteCommandOutput {
5514                        stdout: response.stdout,
5515                        stderr: response.stderr,
5516                    })
5517                }
5518            }
5519        })
5520    }
5521
5522    fn spawn_set_index_text_job(
5523        &mut self,
5524        path: RepoPath,
5525        content: Option<String>,
5526        hunk_staging_operation_count: Option<usize>,
5527        cx: &mut Context<Self>,
5528    ) -> oneshot::Receiver<anyhow::Result<()>> {
5529        let id = self.id;
5530        let this = cx.weak_entity();
5531        let git_store = self.git_store.clone();
5532        let abs_path = self.snapshot.repo_path_to_abs_path(&path);
5533        self.send_keyed_job(
5534            Some(GitJobKey::WriteIndex(vec![path.clone()])),
5535            None,
5536            move |git_repo, mut cx| async move {
5537                log::debug!(
5538                    "start updating index text for buffer {}",
5539                    path.as_unix_str()
5540                );
5541
5542                match git_repo {
5543                    RepositoryState::Local(LocalRepositoryState {
5544                        fs,
5545                        backend,
5546                        environment,
5547                        ..
5548                    }) => {
5549                        let executable = match fs.metadata(&abs_path).await {
5550                            Ok(Some(meta)) => meta.is_executable,
5551                            Ok(None) => false,
5552                            Err(_err) => false,
5553                        };
5554                        backend
5555                            .set_index_text(path.clone(), content, environment.clone(), executable)
5556                            .await?;
5557                    }
5558                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5559                        client
5560                            .request(proto::SetIndexText {
5561                                project_id: project_id.0,
5562                                repository_id: id.to_proto(),
5563                                path: path.to_proto(),
5564                                text: content,
5565                            })
5566                            .await?;
5567                    }
5568                }
5569                log::debug!(
5570                    "finish updating index text for buffer {}",
5571                    path.as_unix_str()
5572                );
5573
5574                if let Some(hunk_staging_operation_count) = hunk_staging_operation_count {
5575                    let project_path = this
5576                        .read_with(&cx, |this, cx| this.repo_path_to_project_path(&path, cx))
5577                        .ok()
5578                        .flatten();
5579                    git_store
5580                        .update(&mut cx, |git_store, cx| {
5581                            let buffer_id = git_store
5582                                .buffer_store
5583                                .read(cx)
5584                                .get_by_path(&project_path?)?
5585                                .read(cx)
5586                                .remote_id();
5587                            let diff_state = git_store.diffs.get(&buffer_id)?;
5588                            diff_state.update(cx, |diff_state, _| {
5589                                diff_state.hunk_staging_operation_count_as_of_write =
5590                                    hunk_staging_operation_count;
5591                            });
5592                            Some(())
5593                        })
5594                        .context("Git store dropped")?;
5595                }
5596                Ok(())
5597            },
5598        )
5599    }
5600
5601    pub fn create_remote(
5602        &mut self,
5603        remote_name: String,
5604        remote_url: String,
5605    ) -> oneshot::Receiver<Result<()>> {
5606        let id = self.id;
5607        self.send_job(
5608            Some(format!("git remote add {remote_name} {remote_url}").into()),
5609            move |repo, _cx| async move {
5610                match repo {
5611                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5612                        backend.create_remote(remote_name, remote_url).await
5613                    }
5614                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5615                        client
5616                            .request(proto::GitCreateRemote {
5617                                project_id: project_id.0,
5618                                repository_id: id.to_proto(),
5619                                remote_name,
5620                                remote_url,
5621                            })
5622                            .await?;
5623
5624                        Ok(())
5625                    }
5626                }
5627            },
5628        )
5629    }
5630
5631    pub fn remove_remote(&mut self, remote_name: String) -> oneshot::Receiver<Result<()>> {
5632        let id = self.id;
5633        self.send_job(
5634            Some(format!("git remove remote {remote_name}").into()),
5635            move |repo, _cx| async move {
5636                match repo {
5637                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5638                        backend.remove_remote(remote_name).await
5639                    }
5640                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5641                        client
5642                            .request(proto::GitRemoveRemote {
5643                                project_id: project_id.0,
5644                                repository_id: id.to_proto(),
5645                                remote_name,
5646                            })
5647                            .await?;
5648
5649                        Ok(())
5650                    }
5651                }
5652            },
5653        )
5654    }
5655
5656    pub fn get_remotes(
5657        &mut self,
5658        branch_name: Option<String>,
5659        is_push: bool,
5660    ) -> oneshot::Receiver<Result<Vec<Remote>>> {
5661        let id = self.id;
5662        self.send_job(None, move |repo, _cx| async move {
5663            match repo {
5664                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5665                    let remote = if let Some(branch_name) = branch_name {
5666                        if is_push {
5667                            backend.get_push_remote(branch_name).await?
5668                        } else {
5669                            backend.get_branch_remote(branch_name).await?
5670                        }
5671                    } else {
5672                        None
5673                    };
5674
5675                    match remote {
5676                        Some(remote) => Ok(vec![remote]),
5677                        None => backend.get_all_remotes().await,
5678                    }
5679                }
5680                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5681                    let response = client
5682                        .request(proto::GetRemotes {
5683                            project_id: project_id.0,
5684                            repository_id: id.to_proto(),
5685                            branch_name,
5686                            is_push,
5687                        })
5688                        .await?;
5689
5690                    let remotes = response
5691                        .remotes
5692                        .into_iter()
5693                        .map(|remotes| Remote {
5694                            name: remotes.name.into(),
5695                        })
5696                        .collect();
5697
5698                    Ok(remotes)
5699                }
5700            }
5701        })
5702    }
5703
5704    pub fn branches(&mut self) -> oneshot::Receiver<Result<Vec<Branch>>> {
5705        let id = self.id;
5706        self.send_job(None, move |repo, _| async move {
5707            match repo {
5708                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5709                    backend.branches().await
5710                }
5711                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5712                    let response = client
5713                        .request(proto::GitGetBranches {
5714                            project_id: project_id.0,
5715                            repository_id: id.to_proto(),
5716                        })
5717                        .await?;
5718
5719                    let branches = response
5720                        .branches
5721                        .into_iter()
5722                        .map(|branch| proto_to_branch(&branch))
5723                        .collect();
5724
5725                    Ok(branches)
5726                }
5727            }
5728        })
5729    }
5730
5731    pub fn worktrees(&mut self) -> oneshot::Receiver<Result<Vec<GitWorktree>>> {
5732        let id = self.id;
5733        self.send_job(None, move |repo, _| async move {
5734            match repo {
5735                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5736                    backend.worktrees().await
5737                }
5738                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5739                    let response = client
5740                        .request(proto::GitGetWorktrees {
5741                            project_id: project_id.0,
5742                            repository_id: id.to_proto(),
5743                        })
5744                        .await?;
5745
5746                    let worktrees = response
5747                        .worktrees
5748                        .into_iter()
5749                        .map(|worktree| proto_to_worktree(&worktree))
5750                        .collect();
5751
5752                    Ok(worktrees)
5753                }
5754            }
5755        })
5756    }
5757
5758    pub fn create_worktree(
5759        &mut self,
5760        name: String,
5761        directory: PathBuf,
5762        commit: Option<String>,
5763    ) -> oneshot::Receiver<Result<()>> {
5764        let id = self.id;
5765        self.send_job(
5766            Some("git worktree add".into()),
5767            move |repo, _cx| async move {
5768                match repo {
5769                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5770                        backend.create_worktree(name, directory, commit).await
5771                    }
5772                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5773                        client
5774                            .request(proto::GitCreateWorktree {
5775                                project_id: project_id.0,
5776                                repository_id: id.to_proto(),
5777                                name,
5778                                directory: directory.to_string_lossy().to_string(),
5779                                commit,
5780                            })
5781                            .await?;
5782
5783                        Ok(())
5784                    }
5785                }
5786            },
5787        )
5788    }
5789
5790    pub fn remove_worktree(&mut self, path: PathBuf, force: bool) -> oneshot::Receiver<Result<()>> {
5791        let id = self.id;
5792        self.send_job(
5793            Some(format!("git worktree remove: {}", path.display()).into()),
5794            move |repo, _cx| async move {
5795                match repo {
5796                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5797                        backend.remove_worktree(path, force).await
5798                    }
5799                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5800                        client
5801                            .request(proto::GitRemoveWorktree {
5802                                project_id: project_id.0,
5803                                repository_id: id.to_proto(),
5804                                path: path.to_string_lossy().to_string(),
5805                                force,
5806                            })
5807                            .await?;
5808
5809                        Ok(())
5810                    }
5811                }
5812            },
5813        )
5814    }
5815
5816    pub fn rename_worktree(
5817        &mut self,
5818        old_path: PathBuf,
5819        new_path: PathBuf,
5820    ) -> oneshot::Receiver<Result<()>> {
5821        let id = self.id;
5822        self.send_job(
5823            Some(format!("git worktree move: {}", old_path.display()).into()),
5824            move |repo, _cx| async move {
5825                match repo {
5826                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5827                        backend.rename_worktree(old_path, new_path).await
5828                    }
5829                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5830                        client
5831                            .request(proto::GitRenameWorktree {
5832                                project_id: project_id.0,
5833                                repository_id: id.to_proto(),
5834                                old_path: old_path.to_string_lossy().to_string(),
5835                                new_path: new_path.to_string_lossy().to_string(),
5836                            })
5837                            .await?;
5838
5839                        Ok(())
5840                    }
5841                }
5842            },
5843        )
5844    }
5845
5846    pub fn default_branch(
5847        &mut self,
5848        include_remote_name: bool,
5849    ) -> oneshot::Receiver<Result<Option<SharedString>>> {
5850        let id = self.id;
5851        self.send_job(None, move |repo, _| async move {
5852            match repo {
5853                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5854                    backend.default_branch(include_remote_name).await
5855                }
5856                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5857                    let response = client
5858                        .request(proto::GetDefaultBranch {
5859                            project_id: project_id.0,
5860                            repository_id: id.to_proto(),
5861                        })
5862                        .await?;
5863
5864                    anyhow::Ok(response.branch.map(SharedString::from))
5865                }
5866            }
5867        })
5868    }
5869
5870    pub fn diff_tree(
5871        &mut self,
5872        diff_type: DiffTreeType,
5873        _cx: &App,
5874    ) -> oneshot::Receiver<Result<TreeDiff>> {
5875        let repository_id = self.snapshot.id;
5876        self.send_job(None, move |repo, _cx| async move {
5877            match repo {
5878                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5879                    backend.diff_tree(diff_type).await
5880                }
5881                RepositoryState::Remote(RemoteRepositoryState { client, project_id }) => {
5882                    let response = client
5883                        .request(proto::GetTreeDiff {
5884                            project_id: project_id.0,
5885                            repository_id: repository_id.0,
5886                            is_merge: matches!(diff_type, DiffTreeType::MergeBase { .. }),
5887                            base: diff_type.base().to_string(),
5888                            head: diff_type.head().to_string(),
5889                        })
5890                        .await?;
5891
5892                    let entries = response
5893                        .entries
5894                        .into_iter()
5895                        .filter_map(|entry| {
5896                            let status = match entry.status() {
5897                                proto::tree_diff_status::Status::Added => TreeDiffStatus::Added,
5898                                proto::tree_diff_status::Status::Modified => {
5899                                    TreeDiffStatus::Modified {
5900                                        old: git::Oid::from_str(
5901                                            &entry.oid.context("missing oid").log_err()?,
5902                                        )
5903                                        .log_err()?,
5904                                    }
5905                                }
5906                                proto::tree_diff_status::Status::Deleted => {
5907                                    TreeDiffStatus::Deleted {
5908                                        old: git::Oid::from_str(
5909                                            &entry.oid.context("missing oid").log_err()?,
5910                                        )
5911                                        .log_err()?,
5912                                    }
5913                                }
5914                            };
5915                            Some((
5916                                RepoPath::from_rel_path(
5917                                    &RelPath::from_proto(&entry.path).log_err()?,
5918                                ),
5919                                status,
5920                            ))
5921                        })
5922                        .collect();
5923
5924                    Ok(TreeDiff { entries })
5925                }
5926            }
5927        })
5928    }
5929
5930    pub fn diff(&mut self, diff_type: DiffType, _cx: &App) -> oneshot::Receiver<Result<String>> {
5931        let id = self.id;
5932        self.send_job(None, move |repo, _cx| async move {
5933            match repo {
5934                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5935                    backend.diff(diff_type).await
5936                }
5937                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5938                    let (proto_diff_type, merge_base_ref) = match &diff_type {
5939                        DiffType::HeadToIndex => {
5940                            (proto::git_diff::DiffType::HeadToIndex.into(), None)
5941                        }
5942                        DiffType::HeadToWorktree => {
5943                            (proto::git_diff::DiffType::HeadToWorktree.into(), None)
5944                        }
5945                        DiffType::MergeBase { base_ref } => (
5946                            proto::git_diff::DiffType::MergeBase.into(),
5947                            Some(base_ref.to_string()),
5948                        ),
5949                    };
5950                    let response = client
5951                        .request(proto::GitDiff {
5952                            project_id: project_id.0,
5953                            repository_id: id.to_proto(),
5954                            diff_type: proto_diff_type,
5955                            merge_base_ref,
5956                        })
5957                        .await?;
5958
5959                    Ok(response.diff)
5960                }
5961            }
5962        })
5963    }
5964
5965    pub fn create_branch(
5966        &mut self,
5967        branch_name: String,
5968        base_branch: Option<String>,
5969    ) -> oneshot::Receiver<Result<()>> {
5970        let id = self.id;
5971        let status_msg = if let Some(ref base) = base_branch {
5972            format!("git switch -c {branch_name} {base}").into()
5973        } else {
5974            format!("git switch -c {branch_name}").into()
5975        };
5976        self.send_job(Some(status_msg), move |repo, _cx| async move {
5977            match repo {
5978                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
5979                    backend.create_branch(branch_name, base_branch).await
5980                }
5981                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
5982                    client
5983                        .request(proto::GitCreateBranch {
5984                            project_id: project_id.0,
5985                            repository_id: id.to_proto(),
5986                            branch_name,
5987                        })
5988                        .await?;
5989
5990                    Ok(())
5991                }
5992            }
5993        })
5994    }
5995
5996    pub fn change_branch(&mut self, branch_name: String) -> oneshot::Receiver<Result<()>> {
5997        let id = self.id;
5998        self.send_job(
5999            Some(format!("git switch {branch_name}").into()),
6000            move |repo, _cx| async move {
6001                match repo {
6002                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6003                        backend.change_branch(branch_name).await
6004                    }
6005                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6006                        client
6007                            .request(proto::GitChangeBranch {
6008                                project_id: project_id.0,
6009                                repository_id: id.to_proto(),
6010                                branch_name,
6011                            })
6012                            .await?;
6013
6014                        Ok(())
6015                    }
6016                }
6017            },
6018        )
6019    }
6020
6021    pub fn delete_branch(&mut self, branch_name: String) -> oneshot::Receiver<Result<()>> {
6022        let id = self.id;
6023        self.send_job(
6024            Some(format!("git branch -d {branch_name}").into()),
6025            move |repo, _cx| async move {
6026                match repo {
6027                    RepositoryState::Local(state) => state.backend.delete_branch(branch_name).await,
6028                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6029                        client
6030                            .request(proto::GitDeleteBranch {
6031                                project_id: project_id.0,
6032                                repository_id: id.to_proto(),
6033                                branch_name,
6034                            })
6035                            .await?;
6036
6037                        Ok(())
6038                    }
6039                }
6040            },
6041        )
6042    }
6043
6044    pub fn rename_branch(
6045        &mut self,
6046        branch: String,
6047        new_name: String,
6048    ) -> oneshot::Receiver<Result<()>> {
6049        let id = self.id;
6050        self.send_job(
6051            Some(format!("git branch -m {branch} {new_name}").into()),
6052            move |repo, _cx| async move {
6053                match repo {
6054                    RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6055                        backend.rename_branch(branch, new_name).await
6056                    }
6057                    RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6058                        client
6059                            .request(proto::GitRenameBranch {
6060                                project_id: project_id.0,
6061                                repository_id: id.to_proto(),
6062                                branch,
6063                                new_name,
6064                            })
6065                            .await?;
6066
6067                        Ok(())
6068                    }
6069                }
6070            },
6071        )
6072    }
6073
6074    pub fn check_for_pushed_commits(&mut self) -> oneshot::Receiver<Result<Vec<SharedString>>> {
6075        let id = self.id;
6076        self.send_job(None, move |repo, _cx| async move {
6077            match repo {
6078                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6079                    backend.check_for_pushed_commit().await
6080                }
6081                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6082                    let response = client
6083                        .request(proto::CheckForPushedCommits {
6084                            project_id: project_id.0,
6085                            repository_id: id.to_proto(),
6086                        })
6087                        .await?;
6088
6089                    let branches = response.pushed_to.into_iter().map(Into::into).collect();
6090
6091                    Ok(branches)
6092                }
6093            }
6094        })
6095    }
6096
6097    pub fn checkpoint(&mut self) -> oneshot::Receiver<Result<GitRepositoryCheckpoint>> {
6098        self.send_job(None, |repo, _cx| async move {
6099            match repo {
6100                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6101                    backend.checkpoint().await
6102                }
6103                RepositoryState::Remote(..) => anyhow::bail!("not implemented yet"),
6104            }
6105        })
6106    }
6107
6108    pub fn restore_checkpoint(
6109        &mut self,
6110        checkpoint: GitRepositoryCheckpoint,
6111    ) -> oneshot::Receiver<Result<()>> {
6112        self.send_job(None, move |repo, _cx| async move {
6113            match repo {
6114                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6115                    backend.restore_checkpoint(checkpoint).await
6116                }
6117                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
6118            }
6119        })
6120    }
6121
6122    pub(crate) fn apply_remote_update(
6123        &mut self,
6124        update: proto::UpdateRepository,
6125        cx: &mut Context<Self>,
6126    ) -> Result<()> {
6127        if let Some(main_path) = &update.original_repo_abs_path {
6128            self.snapshot.original_repo_abs_path = Path::new(main_path.as_str()).into();
6129        }
6130
6131        let new_branch = update.branch_summary.as_ref().map(proto_to_branch);
6132        let new_head_commit = update
6133            .head_commit_details
6134            .as_ref()
6135            .map(proto_to_commit_details);
6136        if self.snapshot.branch != new_branch || self.snapshot.head_commit != new_head_commit {
6137            cx.emit(RepositoryEvent::BranchChanged)
6138        }
6139        self.snapshot.branch = new_branch;
6140        self.snapshot.head_commit = new_head_commit;
6141
6142        // We don't store any merge head state for downstream projects; the upstream
6143        // will track it and we will just get the updated conflicts
6144        let new_merge_heads = TreeMap::from_ordered_entries(
6145            update
6146                .current_merge_conflicts
6147                .into_iter()
6148                .filter_map(|path| Some((RepoPath::from_proto(&path).ok()?, vec![]))),
6149        );
6150        let conflicts_changed =
6151            self.snapshot.merge.merge_heads_by_conflicted_path != new_merge_heads;
6152        self.snapshot.merge.merge_heads_by_conflicted_path = new_merge_heads;
6153        self.snapshot.merge.message = update.merge_message.map(SharedString::from);
6154        let new_stash_entries = GitStash {
6155            entries: update
6156                .stash_entries
6157                .iter()
6158                .filter_map(|entry| proto_to_stash(entry).ok())
6159                .collect(),
6160        };
6161        if self.snapshot.stash_entries != new_stash_entries {
6162            cx.emit(RepositoryEvent::StashEntriesChanged)
6163        }
6164        self.snapshot.stash_entries = new_stash_entries;
6165        let new_linked_worktrees: Arc<[GitWorktree]> = update
6166            .linked_worktrees
6167            .iter()
6168            .map(proto_to_worktree)
6169            .collect();
6170        if *self.snapshot.linked_worktrees != *new_linked_worktrees {
6171            cx.emit(RepositoryEvent::GitWorktreeListChanged);
6172        }
6173        self.snapshot.linked_worktrees = new_linked_worktrees;
6174        self.snapshot.remote_upstream_url = update.remote_upstream_url;
6175        self.snapshot.remote_origin_url = update.remote_origin_url;
6176
6177        let edits = update
6178            .removed_statuses
6179            .into_iter()
6180            .filter_map(|path| {
6181                Some(sum_tree::Edit::Remove(PathKey(
6182                    RelPath::from_proto(&path).log_err()?,
6183                )))
6184            })
6185            .chain(
6186                update
6187                    .updated_statuses
6188                    .into_iter()
6189                    .filter_map(|updated_status| {
6190                        Some(sum_tree::Edit::Insert(updated_status.try_into().log_err()?))
6191                    }),
6192            )
6193            .collect::<Vec<_>>();
6194        if conflicts_changed || !edits.is_empty() {
6195            cx.emit(RepositoryEvent::StatusesChanged);
6196        }
6197        self.snapshot.statuses_by_path.edit(edits, ());
6198
6199        if update.is_last_update {
6200            self.snapshot.scan_id = update.scan_id;
6201        }
6202        self.clear_pending_ops(cx);
6203        Ok(())
6204    }
6205
6206    pub fn compare_checkpoints(
6207        &mut self,
6208        left: GitRepositoryCheckpoint,
6209        right: GitRepositoryCheckpoint,
6210    ) -> oneshot::Receiver<Result<bool>> {
6211        self.send_job(None, move |repo, _cx| async move {
6212            match repo {
6213                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6214                    backend.compare_checkpoints(left, right).await
6215                }
6216                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
6217            }
6218        })
6219    }
6220
6221    pub fn diff_checkpoints(
6222        &mut self,
6223        base_checkpoint: GitRepositoryCheckpoint,
6224        target_checkpoint: GitRepositoryCheckpoint,
6225    ) -> oneshot::Receiver<Result<String>> {
6226        self.send_job(None, move |repo, _cx| async move {
6227            match repo {
6228                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6229                    backend
6230                        .diff_checkpoints(base_checkpoint, target_checkpoint)
6231                        .await
6232                }
6233                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
6234            }
6235        })
6236    }
6237
6238    fn clear_pending_ops(&mut self, cx: &mut Context<Self>) {
6239        let updated = SumTree::from_iter(
6240            self.pending_ops.iter().filter_map(|ops| {
6241                let inner_ops: Vec<PendingOp> =
6242                    ops.ops.iter().filter(|op| op.running()).cloned().collect();
6243                if inner_ops.is_empty() {
6244                    None
6245                } else {
6246                    Some(PendingOps {
6247                        repo_path: ops.repo_path.clone(),
6248                        ops: inner_ops,
6249                    })
6250                }
6251            }),
6252            (),
6253        );
6254
6255        if updated != self.pending_ops {
6256            cx.emit(RepositoryEvent::PendingOpsChanged {
6257                pending_ops: self.pending_ops.clone(),
6258            })
6259        }
6260
6261        self.pending_ops = updated;
6262    }
6263
6264    fn schedule_scan(
6265        &mut self,
6266        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
6267        cx: &mut Context<Self>,
6268    ) {
6269        let this = cx.weak_entity();
6270        let _ = self.send_keyed_job(
6271            Some(GitJobKey::ReloadGitState),
6272            None,
6273            |state, mut cx| async move {
6274                log::debug!("run scheduled git status scan");
6275
6276                let Some(this) = this.upgrade() else {
6277                    return Ok(());
6278                };
6279                let RepositoryState::Local(LocalRepositoryState { backend, .. }) = state else {
6280                    bail!("not a local repository")
6281                };
6282                let compute_snapshot = this.update(&mut cx, |this, _| {
6283                    this.paths_needing_status_update.clear();
6284                    compute_snapshot(
6285                        this.id,
6286                        this.work_directory_abs_path.clone(),
6287                        this.snapshot.clone(),
6288                        backend.clone(),
6289                    )
6290                });
6291                let (snapshot, events) = cx.background_spawn(compute_snapshot).await?;
6292                this.update(&mut cx, |this, cx| {
6293                    this.snapshot = snapshot.clone();
6294                    this.clear_pending_ops(cx);
6295                    for event in events {
6296                        cx.emit(event);
6297                    }
6298                });
6299                if let Some(updates_tx) = updates_tx {
6300                    updates_tx
6301                        .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
6302                        .ok();
6303                }
6304                Ok(())
6305            },
6306        );
6307    }
6308
6309    fn spawn_local_git_worker(
6310        state: Shared<Task<Result<LocalRepositoryState, String>>>,
6311        cx: &mut Context<Self>,
6312    ) -> mpsc::UnboundedSender<GitJob> {
6313        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
6314
6315        cx.spawn(async move |_, cx| {
6316            let state = state.await.map_err(|err| anyhow::anyhow!(err))?;
6317            if let Some(git_hosting_provider_registry) =
6318                cx.update(|cx| GitHostingProviderRegistry::try_global(cx))
6319            {
6320                git_hosting_providers::register_additional_providers(
6321                    git_hosting_provider_registry,
6322                    state.backend.clone(),
6323                )
6324                .await;
6325            }
6326            let state = RepositoryState::Local(state);
6327            let mut jobs = VecDeque::new();
6328            loop {
6329                while let Ok(Some(next_job)) = job_rx.try_next() {
6330                    jobs.push_back(next_job);
6331                }
6332
6333                if let Some(job) = jobs.pop_front() {
6334                    if let Some(current_key) = &job.key
6335                        && jobs
6336                            .iter()
6337                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
6338                    {
6339                        continue;
6340                    }
6341                    (job.job)(state.clone(), cx).await;
6342                } else if let Some(job) = job_rx.next().await {
6343                    jobs.push_back(job);
6344                } else {
6345                    break;
6346                }
6347            }
6348            anyhow::Ok(())
6349        })
6350        .detach_and_log_err(cx);
6351
6352        job_tx
6353    }
6354
6355    fn spawn_remote_git_worker(
6356        state: RemoteRepositoryState,
6357        cx: &mut Context<Self>,
6358    ) -> mpsc::UnboundedSender<GitJob> {
6359        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
6360
6361        cx.spawn(async move |_, cx| {
6362            let state = RepositoryState::Remote(state);
6363            let mut jobs = VecDeque::new();
6364            loop {
6365                while let Ok(Some(next_job)) = job_rx.try_next() {
6366                    jobs.push_back(next_job);
6367                }
6368
6369                if let Some(job) = jobs.pop_front() {
6370                    if let Some(current_key) = &job.key
6371                        && jobs
6372                            .iter()
6373                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
6374                    {
6375                        continue;
6376                    }
6377                    (job.job)(state.clone(), cx).await;
6378                } else if let Some(job) = job_rx.next().await {
6379                    jobs.push_back(job);
6380                } else {
6381                    break;
6382                }
6383            }
6384            anyhow::Ok(())
6385        })
6386        .detach_and_log_err(cx);
6387
6388        job_tx
6389    }
6390
6391    fn load_staged_text(
6392        &mut self,
6393        buffer_id: BufferId,
6394        repo_path: RepoPath,
6395        cx: &App,
6396    ) -> Task<Result<Option<String>>> {
6397        let rx = self.send_job(None, move |state, _| async move {
6398            match state {
6399                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6400                    anyhow::Ok(backend.load_index_text(repo_path).await)
6401                }
6402                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6403                    let response = client
6404                        .request(proto::OpenUnstagedDiff {
6405                            project_id: project_id.to_proto(),
6406                            buffer_id: buffer_id.to_proto(),
6407                        })
6408                        .await?;
6409                    Ok(response.staged_text)
6410                }
6411            }
6412        });
6413        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
6414    }
6415
6416    fn load_committed_text(
6417        &mut self,
6418        buffer_id: BufferId,
6419        repo_path: RepoPath,
6420        cx: &App,
6421    ) -> Task<Result<DiffBasesChange>> {
6422        let rx = self.send_job(None, move |state, _| async move {
6423            match state {
6424                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6425                    let committed_text = backend.load_committed_text(repo_path.clone()).await;
6426                    let staged_text = backend.load_index_text(repo_path).await;
6427                    let diff_bases_change = if committed_text == staged_text {
6428                        DiffBasesChange::SetBoth(committed_text)
6429                    } else {
6430                        DiffBasesChange::SetEach {
6431                            index: staged_text,
6432                            head: committed_text,
6433                        }
6434                    };
6435                    anyhow::Ok(diff_bases_change)
6436                }
6437                RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
6438                    use proto::open_uncommitted_diff_response::Mode;
6439
6440                    let response = client
6441                        .request(proto::OpenUncommittedDiff {
6442                            project_id: project_id.to_proto(),
6443                            buffer_id: buffer_id.to_proto(),
6444                        })
6445                        .await?;
6446                    let mode = Mode::from_i32(response.mode).context("Invalid mode")?;
6447                    let bases = match mode {
6448                        Mode::IndexMatchesHead => DiffBasesChange::SetBoth(response.committed_text),
6449                        Mode::IndexAndHead => DiffBasesChange::SetEach {
6450                            head: response.committed_text,
6451                            index: response.staged_text,
6452                        },
6453                    };
6454                    Ok(bases)
6455                }
6456            }
6457        });
6458
6459        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
6460    }
6461
6462    fn load_blob_content(&mut self, oid: Oid, cx: &App) -> Task<Result<String>> {
6463        let repository_id = self.snapshot.id;
6464        let rx = self.send_job(None, move |state, _| async move {
6465            match state {
6466                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
6467                    backend.load_blob_content(oid).await
6468                }
6469                RepositoryState::Remote(RemoteRepositoryState { client, project_id }) => {
6470                    let response = client
6471                        .request(proto::GetBlobContent {
6472                            project_id: project_id.to_proto(),
6473                            repository_id: repository_id.0,
6474                            oid: oid.to_string(),
6475                        })
6476                        .await?;
6477                    Ok(response.content)
6478                }
6479            }
6480        });
6481        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
6482    }
6483
6484    fn paths_changed(
6485        &mut self,
6486        paths: Vec<RepoPath>,
6487        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
6488        cx: &mut Context<Self>,
6489    ) {
6490        if !paths.is_empty() {
6491            self.paths_needing_status_update.push(paths);
6492        }
6493
6494        let this = cx.weak_entity();
6495        let _ = self.send_keyed_job(
6496            Some(GitJobKey::RefreshStatuses),
6497            None,
6498            |state, mut cx| async move {
6499                let (prev_snapshot, changed_paths) = this.update(&mut cx, |this, _| {
6500                    (
6501                        this.snapshot.clone(),
6502                        mem::take(&mut this.paths_needing_status_update),
6503                    )
6504                })?;
6505                let RepositoryState::Local(LocalRepositoryState { backend, .. }) = state else {
6506                    bail!("not a local repository")
6507                };
6508
6509                if changed_paths.is_empty() {
6510                    return Ok(());
6511                }
6512
6513                let has_head = prev_snapshot.head_commit.is_some();
6514
6515                let stash_entries = backend.stash_entries().await?;
6516                let changed_path_statuses = cx
6517                    .background_spawn(async move {
6518                        let mut changed_paths =
6519                            changed_paths.into_iter().flatten().collect::<BTreeSet<_>>();
6520                        let changed_paths_vec = changed_paths.iter().cloned().collect::<Vec<_>>();
6521
6522                        let status_task = backend.status(&changed_paths_vec);
6523                        let diff_stat_future = if has_head {
6524                            backend.diff_stat(&changed_paths_vec)
6525                        } else {
6526                            future::ready(Ok(status::GitDiffStat {
6527                                entries: Arc::default(),
6528                            }))
6529                            .boxed()
6530                        };
6531
6532                        let (statuses, diff_stats) =
6533                            futures::future::try_join(status_task, diff_stat_future).await?;
6534
6535                        let diff_stats: HashMap<RepoPath, DiffStat> =
6536                            HashMap::from_iter(diff_stats.entries.into_iter().cloned());
6537
6538                        let mut changed_path_statuses = Vec::new();
6539                        let prev_statuses = prev_snapshot.statuses_by_path.clone();
6540                        let mut cursor = prev_statuses.cursor::<PathProgress>(());
6541
6542                        for (repo_path, status) in &*statuses.entries {
6543                            let current_diff_stat = diff_stats.get(repo_path).copied();
6544
6545                            changed_paths.remove(repo_path);
6546                            if cursor.seek_forward(&PathTarget::Path(repo_path), Bias::Left)
6547                                && cursor.item().is_some_and(|entry| {
6548                                    entry.status == *status && entry.diff_stat == current_diff_stat
6549                                })
6550                            {
6551                                continue;
6552                            }
6553
6554                            changed_path_statuses.push(Edit::Insert(StatusEntry {
6555                                repo_path: repo_path.clone(),
6556                                status: *status,
6557                                diff_stat: current_diff_stat,
6558                            }));
6559                        }
6560                        let mut cursor = prev_statuses.cursor::<PathProgress>(());
6561                        for path in changed_paths.into_iter() {
6562                            if cursor.seek_forward(&PathTarget::Path(&path), Bias::Left) {
6563                                changed_path_statuses
6564                                    .push(Edit::Remove(PathKey(path.as_ref().clone())));
6565                            }
6566                        }
6567                        anyhow::Ok(changed_path_statuses)
6568                    })
6569                    .await?;
6570
6571                this.update(&mut cx, |this, cx| {
6572                    if this.snapshot.stash_entries != stash_entries {
6573                        cx.emit(RepositoryEvent::StashEntriesChanged);
6574                        this.snapshot.stash_entries = stash_entries;
6575                    }
6576
6577                    if !changed_path_statuses.is_empty() {
6578                        cx.emit(RepositoryEvent::StatusesChanged);
6579                        this.snapshot
6580                            .statuses_by_path
6581                            .edit(changed_path_statuses, ());
6582                        this.snapshot.scan_id += 1;
6583                    }
6584
6585                    if let Some(updates_tx) = updates_tx {
6586                        updates_tx
6587                            .unbounded_send(DownstreamUpdate::UpdateRepository(
6588                                this.snapshot.clone(),
6589                            ))
6590                            .ok();
6591                    }
6592                })
6593            },
6594        );
6595    }
6596
6597    /// currently running git command and when it started
6598    pub fn current_job(&self) -> Option<JobInfo> {
6599        self.active_jobs.values().next().cloned()
6600    }
6601
6602    pub fn barrier(&mut self) -> oneshot::Receiver<()> {
6603        self.send_job(None, |_, _| async {})
6604    }
6605
6606    fn spawn_job_with_tracking<AsyncFn>(
6607        &mut self,
6608        paths: Vec<RepoPath>,
6609        git_status: pending_op::GitStatus,
6610        cx: &mut Context<Self>,
6611        f: AsyncFn,
6612    ) -> Task<Result<()>>
6613    where
6614        AsyncFn: AsyncFnOnce(WeakEntity<Repository>, &mut AsyncApp) -> Result<()> + 'static,
6615    {
6616        let ids = self.new_pending_ops_for_paths(paths, git_status);
6617
6618        cx.spawn(async move |this, cx| {
6619            let (job_status, result) = match f(this.clone(), cx).await {
6620                Ok(()) => (pending_op::JobStatus::Finished, Ok(())),
6621                Err(err) if err.is::<Canceled>() => (pending_op::JobStatus::Skipped, Ok(())),
6622                Err(err) => (pending_op::JobStatus::Error, Err(err)),
6623            };
6624
6625            this.update(cx, |this, _| {
6626                let mut edits = Vec::with_capacity(ids.len());
6627                for (id, entry) in ids {
6628                    if let Some(mut ops) = this
6629                        .pending_ops
6630                        .get(&PathKey(entry.as_ref().clone()), ())
6631                        .cloned()
6632                    {
6633                        if let Some(op) = ops.op_by_id_mut(id) {
6634                            op.job_status = job_status;
6635                        }
6636                        edits.push(sum_tree::Edit::Insert(ops));
6637                    }
6638                }
6639                this.pending_ops.edit(edits, ());
6640            })?;
6641
6642            result
6643        })
6644    }
6645
6646    fn new_pending_ops_for_paths(
6647        &mut self,
6648        paths: Vec<RepoPath>,
6649        git_status: pending_op::GitStatus,
6650    ) -> Vec<(PendingOpId, RepoPath)> {
6651        let mut edits = Vec::with_capacity(paths.len());
6652        let mut ids = Vec::with_capacity(paths.len());
6653        for path in paths {
6654            let mut ops = self
6655                .pending_ops
6656                .get(&PathKey(path.as_ref().clone()), ())
6657                .cloned()
6658                .unwrap_or_else(|| PendingOps::new(&path));
6659            let id = ops.max_id() + 1;
6660            ops.ops.push(PendingOp {
6661                id,
6662                git_status,
6663                job_status: pending_op::JobStatus::Running,
6664            });
6665            edits.push(sum_tree::Edit::Insert(ops));
6666            ids.push((id, path));
6667        }
6668        self.pending_ops.edit(edits, ());
6669        ids
6670    }
6671    pub fn default_remote_url(&self) -> Option<String> {
6672        self.remote_upstream_url
6673            .clone()
6674            .or(self.remote_origin_url.clone())
6675    }
6676}
6677
6678fn get_permalink_in_rust_registry_src(
6679    provider_registry: Arc<GitHostingProviderRegistry>,
6680    path: PathBuf,
6681    selection: Range<u32>,
6682) -> Result<url::Url> {
6683    #[derive(Deserialize)]
6684    struct CargoVcsGit {
6685        sha1: String,
6686    }
6687
6688    #[derive(Deserialize)]
6689    struct CargoVcsInfo {
6690        git: CargoVcsGit,
6691        path_in_vcs: String,
6692    }
6693
6694    #[derive(Deserialize)]
6695    struct CargoPackage {
6696        repository: String,
6697    }
6698
6699    #[derive(Deserialize)]
6700    struct CargoToml {
6701        package: CargoPackage,
6702    }
6703
6704    let Some((dir, cargo_vcs_info_json)) = path.ancestors().skip(1).find_map(|dir| {
6705        let json = std::fs::read_to_string(dir.join(".cargo_vcs_info.json")).ok()?;
6706        Some((dir, json))
6707    }) else {
6708        bail!("No .cargo_vcs_info.json found in parent directories")
6709    };
6710    let cargo_vcs_info = serde_json::from_str::<CargoVcsInfo>(&cargo_vcs_info_json)?;
6711    let cargo_toml = std::fs::read_to_string(dir.join("Cargo.toml"))?;
6712    let manifest = toml::from_str::<CargoToml>(&cargo_toml)?;
6713    let (provider, remote) = parse_git_remote_url(provider_registry, &manifest.package.repository)
6714        .context("parsing package.repository field of manifest")?;
6715    let path = PathBuf::from(cargo_vcs_info.path_in_vcs).join(path.strip_prefix(dir).unwrap());
6716    let permalink = provider.build_permalink(
6717        remote,
6718        BuildPermalinkParams::new(
6719            &cargo_vcs_info.git.sha1,
6720            &RepoPath::from_rel_path(
6721                &RelPath::new(&path, PathStyle::local()).context("invalid path")?,
6722            ),
6723            Some(selection),
6724        ),
6725    );
6726    Ok(permalink)
6727}
6728
6729fn serialize_blame_buffer_response(blame: Option<git::blame::Blame>) -> proto::BlameBufferResponse {
6730    let Some(blame) = blame else {
6731        return proto::BlameBufferResponse {
6732            blame_response: None,
6733        };
6734    };
6735
6736    let entries = blame
6737        .entries
6738        .into_iter()
6739        .map(|entry| proto::BlameEntry {
6740            sha: entry.sha.as_bytes().into(),
6741            start_line: entry.range.start,
6742            end_line: entry.range.end,
6743            original_line_number: entry.original_line_number,
6744            author: entry.author,
6745            author_mail: entry.author_mail,
6746            author_time: entry.author_time,
6747            author_tz: entry.author_tz,
6748            committer: entry.committer_name,
6749            committer_mail: entry.committer_email,
6750            committer_time: entry.committer_time,
6751            committer_tz: entry.committer_tz,
6752            summary: entry.summary,
6753            previous: entry.previous,
6754            filename: entry.filename,
6755        })
6756        .collect::<Vec<_>>();
6757
6758    let messages = blame
6759        .messages
6760        .into_iter()
6761        .map(|(oid, message)| proto::CommitMessage {
6762            oid: oid.as_bytes().into(),
6763            message,
6764        })
6765        .collect::<Vec<_>>();
6766
6767    proto::BlameBufferResponse {
6768        blame_response: Some(proto::blame_buffer_response::BlameResponse { entries, messages }),
6769    }
6770}
6771
6772fn deserialize_blame_buffer_response(
6773    response: proto::BlameBufferResponse,
6774) -> Option<git::blame::Blame> {
6775    let response = response.blame_response?;
6776    let entries = response
6777        .entries
6778        .into_iter()
6779        .filter_map(|entry| {
6780            Some(git::blame::BlameEntry {
6781                sha: git::Oid::from_bytes(&entry.sha).ok()?,
6782                range: entry.start_line..entry.end_line,
6783                original_line_number: entry.original_line_number,
6784                committer_name: entry.committer,
6785                committer_time: entry.committer_time,
6786                committer_tz: entry.committer_tz,
6787                committer_email: entry.committer_mail,
6788                author: entry.author,
6789                author_mail: entry.author_mail,
6790                author_time: entry.author_time,
6791                author_tz: entry.author_tz,
6792                summary: entry.summary,
6793                previous: entry.previous,
6794                filename: entry.filename,
6795            })
6796        })
6797        .collect::<Vec<_>>();
6798
6799    let messages = response
6800        .messages
6801        .into_iter()
6802        .filter_map(|message| Some((git::Oid::from_bytes(&message.oid).ok()?, message.message)))
6803        .collect::<HashMap<_, _>>();
6804
6805    Some(Blame { entries, messages })
6806}
6807
6808fn branch_to_proto(branch: &git::repository::Branch) -> proto::Branch {
6809    proto::Branch {
6810        is_head: branch.is_head,
6811        ref_name: branch.ref_name.to_string(),
6812        unix_timestamp: branch
6813            .most_recent_commit
6814            .as_ref()
6815            .map(|commit| commit.commit_timestamp as u64),
6816        upstream: branch.upstream.as_ref().map(|upstream| proto::GitUpstream {
6817            ref_name: upstream.ref_name.to_string(),
6818            tracking: upstream
6819                .tracking
6820                .status()
6821                .map(|upstream| proto::UpstreamTracking {
6822                    ahead: upstream.ahead as u64,
6823                    behind: upstream.behind as u64,
6824                }),
6825        }),
6826        most_recent_commit: branch
6827            .most_recent_commit
6828            .as_ref()
6829            .map(|commit| proto::CommitSummary {
6830                sha: commit.sha.to_string(),
6831                subject: commit.subject.to_string(),
6832                commit_timestamp: commit.commit_timestamp,
6833                author_name: commit.author_name.to_string(),
6834            }),
6835    }
6836}
6837
6838fn worktree_to_proto(worktree: &git::repository::Worktree) -> proto::Worktree {
6839    proto::Worktree {
6840        path: worktree.path.to_string_lossy().to_string(),
6841        ref_name: worktree.ref_name.to_string(),
6842        sha: worktree.sha.to_string(),
6843    }
6844}
6845
6846fn proto_to_worktree(proto: &proto::Worktree) -> git::repository::Worktree {
6847    git::repository::Worktree {
6848        path: PathBuf::from(proto.path.clone()),
6849        ref_name: proto.ref_name.clone().into(),
6850        sha: proto.sha.clone().into(),
6851    }
6852}
6853
6854fn proto_to_branch(proto: &proto::Branch) -> git::repository::Branch {
6855    git::repository::Branch {
6856        is_head: proto.is_head,
6857        ref_name: proto.ref_name.clone().into(),
6858        upstream: proto
6859            .upstream
6860            .as_ref()
6861            .map(|upstream| git::repository::Upstream {
6862                ref_name: upstream.ref_name.to_string().into(),
6863                tracking: upstream
6864                    .tracking
6865                    .as_ref()
6866                    .map(|tracking| {
6867                        git::repository::UpstreamTracking::Tracked(UpstreamTrackingStatus {
6868                            ahead: tracking.ahead as u32,
6869                            behind: tracking.behind as u32,
6870                        })
6871                    })
6872                    .unwrap_or(git::repository::UpstreamTracking::Gone),
6873            }),
6874        most_recent_commit: proto.most_recent_commit.as_ref().map(|commit| {
6875            git::repository::CommitSummary {
6876                sha: commit.sha.to_string().into(),
6877                subject: commit.subject.to_string().into(),
6878                commit_timestamp: commit.commit_timestamp,
6879                author_name: commit.author_name.to_string().into(),
6880                has_parent: true,
6881            }
6882        }),
6883    }
6884}
6885
6886fn commit_details_to_proto(commit: &CommitDetails) -> proto::GitCommitDetails {
6887    proto::GitCommitDetails {
6888        sha: commit.sha.to_string(),
6889        message: commit.message.to_string(),
6890        commit_timestamp: commit.commit_timestamp,
6891        author_email: commit.author_email.to_string(),
6892        author_name: commit.author_name.to_string(),
6893    }
6894}
6895
6896fn proto_to_commit_details(proto: &proto::GitCommitDetails) -> CommitDetails {
6897    CommitDetails {
6898        sha: proto.sha.clone().into(),
6899        message: proto.message.clone().into(),
6900        commit_timestamp: proto.commit_timestamp,
6901        author_email: proto.author_email.clone().into(),
6902        author_name: proto.author_name.clone().into(),
6903    }
6904}
6905
6906async fn compute_snapshot(
6907    id: RepositoryId,
6908    work_directory_abs_path: Arc<Path>,
6909    prev_snapshot: RepositorySnapshot,
6910    backend: Arc<dyn GitRepository>,
6911) -> Result<(RepositorySnapshot, Vec<RepositoryEvent>)> {
6912    let mut events = Vec::new();
6913    let branches = backend.branches().await?;
6914    let branch = branches.into_iter().find(|branch| branch.is_head);
6915
6916    // Useful when branch is None in detached head state
6917    let head_commit = match backend.head_sha().await {
6918        Some(head_sha) => backend.show(head_sha).await.log_err(),
6919        None => None,
6920    };
6921
6922    let diff_stat_future: BoxFuture<'_, Result<status::GitDiffStat>> = if head_commit.is_some() {
6923        backend.diff_stat(&[])
6924    } else {
6925        future::ready(Ok(status::GitDiffStat {
6926            entries: Arc::default(),
6927        }))
6928        .boxed()
6929    };
6930    let (statuses, diff_stats, all_worktrees) = futures::future::try_join3(
6931        backend.status(&[RepoPath::from_rel_path(
6932            &RelPath::new(".".as_ref(), PathStyle::local()).unwrap(),
6933        )]),
6934        diff_stat_future,
6935        backend.worktrees(),
6936    )
6937    .await?;
6938
6939    let linked_worktrees: Arc<[GitWorktree]> = all_worktrees
6940        .into_iter()
6941        .filter(|wt| wt.path != *work_directory_abs_path)
6942        .collect();
6943
6944    let diff_stat_map: HashMap<&RepoPath, DiffStat> =
6945        diff_stats.entries.iter().map(|(p, s)| (p, *s)).collect();
6946    let stash_entries = backend.stash_entries().await?;
6947    let mut conflicted_paths = Vec::new();
6948    let statuses_by_path = SumTree::from_iter(
6949        statuses.entries.iter().map(|(repo_path, status)| {
6950            if status.is_conflicted() {
6951                conflicted_paths.push(repo_path.clone());
6952            }
6953            StatusEntry {
6954                repo_path: repo_path.clone(),
6955                status: *status,
6956                diff_stat: diff_stat_map.get(repo_path).copied(),
6957            }
6958        }),
6959        (),
6960    );
6961    let mut merge_details = prev_snapshot.merge;
6962    let conflicts_changed = merge_details.update(&backend, conflicted_paths).await?;
6963    log::debug!("new merge details: {merge_details:?}");
6964
6965    if conflicts_changed || statuses_by_path != prev_snapshot.statuses_by_path {
6966        events.push(RepositoryEvent::StatusesChanged)
6967    }
6968
6969    if branch != prev_snapshot.branch || head_commit != prev_snapshot.head_commit {
6970        events.push(RepositoryEvent::BranchChanged);
6971    }
6972
6973    if *linked_worktrees != *prev_snapshot.linked_worktrees {
6974        events.push(RepositoryEvent::GitWorktreeListChanged);
6975    }
6976
6977    let remote_origin_url = backend.remote_url("origin").await;
6978    let remote_upstream_url = backend.remote_url("upstream").await;
6979
6980    let snapshot = RepositorySnapshot {
6981        id,
6982        statuses_by_path,
6983        work_directory_abs_path,
6984        original_repo_abs_path: prev_snapshot.original_repo_abs_path,
6985        path_style: prev_snapshot.path_style,
6986        scan_id: prev_snapshot.scan_id + 1,
6987        branch,
6988        head_commit,
6989        merge: merge_details,
6990        remote_origin_url,
6991        remote_upstream_url,
6992        stash_entries,
6993        linked_worktrees,
6994    };
6995
6996    Ok((snapshot, events))
6997}
6998
6999fn status_from_proto(
7000    simple_status: i32,
7001    status: Option<proto::GitFileStatus>,
7002) -> anyhow::Result<FileStatus> {
7003    use proto::git_file_status::Variant;
7004
7005    let Some(variant) = status.and_then(|status| status.variant) else {
7006        let code = proto::GitStatus::from_i32(simple_status)
7007            .with_context(|| format!("Invalid git status code: {simple_status}"))?;
7008        let result = match code {
7009            proto::GitStatus::Added => TrackedStatus {
7010                worktree_status: StatusCode::Added,
7011                index_status: StatusCode::Unmodified,
7012            }
7013            .into(),
7014            proto::GitStatus::Modified => TrackedStatus {
7015                worktree_status: StatusCode::Modified,
7016                index_status: StatusCode::Unmodified,
7017            }
7018            .into(),
7019            proto::GitStatus::Conflict => UnmergedStatus {
7020                first_head: UnmergedStatusCode::Updated,
7021                second_head: UnmergedStatusCode::Updated,
7022            }
7023            .into(),
7024            proto::GitStatus::Deleted => TrackedStatus {
7025                worktree_status: StatusCode::Deleted,
7026                index_status: StatusCode::Unmodified,
7027            }
7028            .into(),
7029            _ => anyhow::bail!("Invalid code for simple status: {simple_status}"),
7030        };
7031        return Ok(result);
7032    };
7033
7034    let result = match variant {
7035        Variant::Untracked(_) => FileStatus::Untracked,
7036        Variant::Ignored(_) => FileStatus::Ignored,
7037        Variant::Unmerged(unmerged) => {
7038            let [first_head, second_head] =
7039                [unmerged.first_head, unmerged.second_head].map(|head| {
7040                    let code = proto::GitStatus::from_i32(head)
7041                        .with_context(|| format!("Invalid git status code: {head}"))?;
7042                    let result = match code {
7043                        proto::GitStatus::Added => UnmergedStatusCode::Added,
7044                        proto::GitStatus::Updated => UnmergedStatusCode::Updated,
7045                        proto::GitStatus::Deleted => UnmergedStatusCode::Deleted,
7046                        _ => anyhow::bail!("Invalid code for unmerged status: {code:?}"),
7047                    };
7048                    Ok(result)
7049                });
7050            let [first_head, second_head] = [first_head?, second_head?];
7051            UnmergedStatus {
7052                first_head,
7053                second_head,
7054            }
7055            .into()
7056        }
7057        Variant::Tracked(tracked) => {
7058            let [index_status, worktree_status] = [tracked.index_status, tracked.worktree_status]
7059                .map(|status| {
7060                    let code = proto::GitStatus::from_i32(status)
7061                        .with_context(|| format!("Invalid git status code: {status}"))?;
7062                    let result = match code {
7063                        proto::GitStatus::Modified => StatusCode::Modified,
7064                        proto::GitStatus::TypeChanged => StatusCode::TypeChanged,
7065                        proto::GitStatus::Added => StatusCode::Added,
7066                        proto::GitStatus::Deleted => StatusCode::Deleted,
7067                        proto::GitStatus::Renamed => StatusCode::Renamed,
7068                        proto::GitStatus::Copied => StatusCode::Copied,
7069                        proto::GitStatus::Unmodified => StatusCode::Unmodified,
7070                        _ => anyhow::bail!("Invalid code for tracked status: {code:?}"),
7071                    };
7072                    Ok(result)
7073                });
7074            let [index_status, worktree_status] = [index_status?, worktree_status?];
7075            TrackedStatus {
7076                index_status,
7077                worktree_status,
7078            }
7079            .into()
7080        }
7081    };
7082    Ok(result)
7083}
7084
7085fn status_to_proto(status: FileStatus) -> proto::GitFileStatus {
7086    use proto::git_file_status::{Tracked, Unmerged, Variant};
7087
7088    let variant = match status {
7089        FileStatus::Untracked => Variant::Untracked(Default::default()),
7090        FileStatus::Ignored => Variant::Ignored(Default::default()),
7091        FileStatus::Unmerged(UnmergedStatus {
7092            first_head,
7093            second_head,
7094        }) => Variant::Unmerged(Unmerged {
7095            first_head: unmerged_status_to_proto(first_head),
7096            second_head: unmerged_status_to_proto(second_head),
7097        }),
7098        FileStatus::Tracked(TrackedStatus {
7099            index_status,
7100            worktree_status,
7101        }) => Variant::Tracked(Tracked {
7102            index_status: tracked_status_to_proto(index_status),
7103            worktree_status: tracked_status_to_proto(worktree_status),
7104        }),
7105    };
7106    proto::GitFileStatus {
7107        variant: Some(variant),
7108    }
7109}
7110
7111fn unmerged_status_to_proto(code: UnmergedStatusCode) -> i32 {
7112    match code {
7113        UnmergedStatusCode::Added => proto::GitStatus::Added as _,
7114        UnmergedStatusCode::Deleted => proto::GitStatus::Deleted as _,
7115        UnmergedStatusCode::Updated => proto::GitStatus::Updated as _,
7116    }
7117}
7118
7119fn tracked_status_to_proto(code: StatusCode) -> i32 {
7120    match code {
7121        StatusCode::Added => proto::GitStatus::Added as _,
7122        StatusCode::Deleted => proto::GitStatus::Deleted as _,
7123        StatusCode::Modified => proto::GitStatus::Modified as _,
7124        StatusCode::Renamed => proto::GitStatus::Renamed as _,
7125        StatusCode::TypeChanged => proto::GitStatus::TypeChanged as _,
7126        StatusCode::Copied => proto::GitStatus::Copied as _,
7127        StatusCode::Unmodified => proto::GitStatus::Unmodified as _,
7128    }
7129}