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