git_store.rs

   1mod conflict_set;
   2pub mod git_traversal;
   3
   4use crate::{
   5    ProjectEnvironment, ProjectItem, ProjectPath,
   6    buffer_store::{BufferStore, BufferStoreEvent},
   7    worktree_store::{WorktreeStore, WorktreeStoreEvent},
   8};
   9use anyhow::{Context as _, Result, anyhow, bail};
  10use askpass::{AskPassDelegate, EncryptedPassword, IKnowWhatIAmDoingAndIHaveReadTheDocs};
  11use buffer_diff::{BufferDiff, BufferDiffEvent};
  12use client::ProjectId;
  13use collections::HashMap;
  14pub use conflict_set::{ConflictRegion, ConflictSet, ConflictSetSnapshot, ConflictSetUpdate};
  15use fs::Fs;
  16use futures::{
  17    FutureExt, StreamExt,
  18    channel::{mpsc, oneshot},
  19    future::{self, Shared},
  20    stream::FuturesOrdered,
  21};
  22use git::{
  23    BuildPermalinkParams, GitHostingProviderRegistry, Oid,
  24    blame::Blame,
  25    parse_git_remote_url,
  26    repository::{
  27        Branch, CommitDetails, CommitDiff, CommitFile, CommitOptions, DiffType, FetchOptions,
  28        GitRepository, GitRepositoryCheckpoint, PushOptions, Remote, RemoteCommandOutput, RepoPath,
  29        ResetMode, UpstreamTrackingStatus,
  30    },
  31    stash::{GitStash, StashEntry},
  32    status::{
  33        FileStatus, GitSummary, StatusCode, TrackedStatus, UnmergedStatus, UnmergedStatusCode,
  34    },
  35};
  36use gpui::{
  37    App, AppContext, AsyncApp, Context, Entity, EventEmitter, SharedString, Subscription, Task,
  38    WeakEntity,
  39};
  40use language::{
  41    Buffer, BufferEvent, Language, LanguageRegistry,
  42    proto::{deserialize_version, serialize_version},
  43};
  44use parking_lot::Mutex;
  45use postage::stream::Stream as _;
  46use rpc::{
  47    AnyProtoClient, TypedEnvelope,
  48    proto::{self, git_reset, split_repository_update},
  49};
  50use serde::Deserialize;
  51use std::{
  52    cmp::Ordering,
  53    collections::{BTreeSet, VecDeque},
  54    future::Future,
  55    mem,
  56    ops::Range,
  57    path::{Path, PathBuf},
  58    sync::{
  59        Arc,
  60        atomic::{self, AtomicU64},
  61    },
  62    time::Instant,
  63};
  64use sum_tree::{Edit, SumTree, TreeSet};
  65use task::Shell;
  66use text::{Bias, BufferId};
  67use util::{
  68    ResultExt, debug_panic,
  69    paths::{PathStyle, SanitizedPath},
  70    post_inc,
  71    rel_path::RelPath,
  72};
  73use worktree::{
  74    File, PathChange, PathKey, PathProgress, PathSummary, PathTarget, ProjectEntryId,
  75    UpdatedGitRepositoriesSet, UpdatedGitRepository, Worktree,
  76};
  77use zeroize::Zeroize;
  78
  79pub struct GitStore {
  80    state: GitStoreState,
  81    buffer_store: Entity<BufferStore>,
  82    worktree_store: Entity<WorktreeStore>,
  83    repositories: HashMap<RepositoryId, Entity<Repository>>,
  84    active_repo_id: Option<RepositoryId>,
  85    #[allow(clippy::type_complexity)]
  86    loading_diffs:
  87        HashMap<(BufferId, DiffKind), Shared<Task<Result<Entity<BufferDiff>, Arc<anyhow::Error>>>>>,
  88    diffs: HashMap<BufferId, Entity<BufferGitState>>,
  89    shared_diffs: HashMap<proto::PeerId, HashMap<BufferId, SharedDiffs>>,
  90    _subscriptions: Vec<Subscription>,
  91}
  92
  93#[derive(Default)]
  94struct SharedDiffs {
  95    unstaged: Option<Entity<BufferDiff>>,
  96    uncommitted: Option<Entity<BufferDiff>>,
  97}
  98
  99struct BufferGitState {
 100    unstaged_diff: Option<WeakEntity<BufferDiff>>,
 101    uncommitted_diff: Option<WeakEntity<BufferDiff>>,
 102    conflict_set: Option<WeakEntity<ConflictSet>>,
 103    recalculate_diff_task: Option<Task<Result<()>>>,
 104    reparse_conflict_markers_task: Option<Task<Result<()>>>,
 105    language: Option<Arc<Language>>,
 106    language_registry: Option<Arc<LanguageRegistry>>,
 107    conflict_updated_futures: Vec<oneshot::Sender<()>>,
 108    recalculating_tx: postage::watch::Sender<bool>,
 109
 110    /// These operation counts are used to ensure that head and index text
 111    /// values read from the git repository are up-to-date with any hunk staging
 112    /// operations that have been performed on the BufferDiff.
 113    ///
 114    /// The operation count is incremented immediately when the user initiates a
 115    /// hunk stage/unstage operation. Then, upon finishing writing the new index
 116    /// text do disk, the `operation count as of write` is updated to reflect
 117    /// the operation count that prompted the write.
 118    hunk_staging_operation_count: usize,
 119    hunk_staging_operation_count_as_of_write: usize,
 120
 121    head_text: Option<Arc<String>>,
 122    index_text: Option<Arc<String>>,
 123    head_changed: bool,
 124    index_changed: bool,
 125    language_changed: bool,
 126}
 127
 128#[derive(Clone, Debug)]
 129enum DiffBasesChange {
 130    SetIndex(Option<String>),
 131    SetHead(Option<String>),
 132    SetEach {
 133        index: Option<String>,
 134        head: Option<String>,
 135    },
 136    SetBoth(Option<String>),
 137}
 138
 139#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
 140enum DiffKind {
 141    Unstaged,
 142    Uncommitted,
 143}
 144
 145enum GitStoreState {
 146    Local {
 147        next_repository_id: Arc<AtomicU64>,
 148        downstream: Option<LocalDownstreamState>,
 149        project_environment: Entity<ProjectEnvironment>,
 150        fs: Arc<dyn Fs>,
 151    },
 152    Remote {
 153        upstream_client: AnyProtoClient,
 154        upstream_project_id: u64,
 155        downstream: Option<(AnyProtoClient, ProjectId)>,
 156    },
 157}
 158
 159enum DownstreamUpdate {
 160    UpdateRepository(RepositorySnapshot),
 161    RemoveRepository(RepositoryId),
 162}
 163
 164struct LocalDownstreamState {
 165    client: AnyProtoClient,
 166    project_id: ProjectId,
 167    updates_tx: mpsc::UnboundedSender<DownstreamUpdate>,
 168    _task: Task<Result<()>>,
 169}
 170
 171#[derive(Clone, Debug)]
 172pub struct GitStoreCheckpoint {
 173    checkpoints_by_work_dir_abs_path: HashMap<Arc<Path>, GitRepositoryCheckpoint>,
 174}
 175
 176#[derive(Clone, Debug, PartialEq, Eq)]
 177pub struct StatusEntry {
 178    pub repo_path: RepoPath,
 179    pub status: FileStatus,
 180}
 181
 182impl StatusEntry {
 183    fn to_proto(&self) -> proto::StatusEntry {
 184        let simple_status = match self.status {
 185            FileStatus::Ignored | FileStatus::Untracked => proto::GitStatus::Added as i32,
 186            FileStatus::Unmerged { .. } => proto::GitStatus::Conflict as i32,
 187            FileStatus::Tracked(TrackedStatus {
 188                index_status,
 189                worktree_status,
 190            }) => tracked_status_to_proto(if worktree_status != StatusCode::Unmodified {
 191                worktree_status
 192            } else {
 193                index_status
 194            }),
 195        };
 196
 197        proto::StatusEntry {
 198            repo_path: self.repo_path.to_proto(),
 199            simple_status,
 200            status: Some(status_to_proto(self.status)),
 201        }
 202    }
 203}
 204
 205impl TryFrom<proto::StatusEntry> for StatusEntry {
 206    type Error = anyhow::Error;
 207
 208    fn try_from(value: proto::StatusEntry) -> Result<Self, Self::Error> {
 209        let repo_path = RepoPath::from_proto(&value.repo_path).context("invalid repo path")?;
 210        let status = status_from_proto(value.simple_status, value.status)?;
 211        Ok(Self { repo_path, status })
 212    }
 213}
 214
 215impl sum_tree::Item for StatusEntry {
 216    type Summary = PathSummary<GitSummary>;
 217
 218    fn summary(&self, _: <Self::Summary as sum_tree::Summary>::Context<'_>) -> Self::Summary {
 219        PathSummary {
 220            max_path: self.repo_path.0.clone(),
 221            item_summary: self.status.summary(),
 222        }
 223    }
 224}
 225
 226impl sum_tree::KeyedItem for StatusEntry {
 227    type Key = PathKey;
 228
 229    fn key(&self) -> Self::Key {
 230        PathKey(self.repo_path.0.clone())
 231    }
 232}
 233
 234#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 235pub struct RepositoryId(pub u64);
 236
 237#[derive(Clone, Debug, Default, PartialEq, Eq)]
 238pub struct MergeDetails {
 239    pub conflicted_paths: TreeSet<RepoPath>,
 240    pub message: Option<SharedString>,
 241    pub heads: Vec<Option<SharedString>>,
 242}
 243
 244#[derive(Clone, Debug, PartialEq, Eq)]
 245pub struct RepositorySnapshot {
 246    pub id: RepositoryId,
 247    pub statuses_by_path: SumTree<StatusEntry>,
 248    pub work_directory_abs_path: Arc<Path>,
 249    pub path_style: PathStyle,
 250    pub branch: Option<Branch>,
 251    pub head_commit: Option<CommitDetails>,
 252    pub scan_id: u64,
 253    pub merge: MergeDetails,
 254    pub remote_origin_url: Option<String>,
 255    pub remote_upstream_url: Option<String>,
 256    pub stash_entries: GitStash,
 257}
 258
 259type JobId = u64;
 260
 261#[derive(Clone, Debug, PartialEq, Eq)]
 262pub struct JobInfo {
 263    pub start: Instant,
 264    pub message: SharedString,
 265}
 266
 267pub struct Repository {
 268    this: WeakEntity<Self>,
 269    snapshot: RepositorySnapshot,
 270    commit_message_buffer: Option<Entity<Buffer>>,
 271    git_store: WeakEntity<GitStore>,
 272    // For a local repository, holds paths that have had worktree events since the last status scan completed,
 273    // and that should be examined during the next status scan.
 274    paths_needing_status_update: BTreeSet<RepoPath>,
 275    job_sender: mpsc::UnboundedSender<GitJob>,
 276    active_jobs: HashMap<JobId, JobInfo>,
 277    job_id: JobId,
 278    askpass_delegates: Arc<Mutex<HashMap<u64, AskPassDelegate>>>,
 279    latest_askpass_id: u64,
 280}
 281
 282impl std::ops::Deref for Repository {
 283    type Target = RepositorySnapshot;
 284
 285    fn deref(&self) -> &Self::Target {
 286        &self.snapshot
 287    }
 288}
 289
 290#[derive(Clone)]
 291pub enum RepositoryState {
 292    Local {
 293        backend: Arc<dyn GitRepository>,
 294        environment: Arc<HashMap<String, String>>,
 295    },
 296    Remote {
 297        project_id: ProjectId,
 298        client: AnyProtoClient,
 299    },
 300}
 301
 302#[derive(Clone, Debug, PartialEq, Eq)]
 303pub enum RepositoryEvent {
 304    Updated { full_scan: bool, new_instance: bool },
 305    MergeHeadsChanged,
 306    PathsChanged,
 307}
 308
 309#[derive(Clone, Debug)]
 310pub struct JobsUpdated;
 311
 312#[derive(Debug)]
 313pub enum GitStoreEvent {
 314    ActiveRepositoryChanged(Option<RepositoryId>),
 315    RepositoryUpdated(RepositoryId, RepositoryEvent, bool),
 316    RepositoryAdded(RepositoryId),
 317    RepositoryRemoved(RepositoryId),
 318    IndexWriteError(anyhow::Error),
 319    JobsUpdated,
 320    ConflictsUpdated,
 321}
 322
 323impl EventEmitter<RepositoryEvent> for Repository {}
 324impl EventEmitter<JobsUpdated> for Repository {}
 325impl EventEmitter<GitStoreEvent> for GitStore {}
 326
 327pub struct GitJob {
 328    job: Box<dyn FnOnce(RepositoryState, &mut AsyncApp) -> Task<()>>,
 329    key: Option<GitJobKey>,
 330}
 331
 332#[derive(PartialEq, Eq)]
 333enum GitJobKey {
 334    WriteIndex(RepoPath),
 335    ReloadBufferDiffBases,
 336    RefreshStatuses,
 337    ReloadGitState,
 338}
 339
 340impl GitStore {
 341    pub fn local(
 342        worktree_store: &Entity<WorktreeStore>,
 343        buffer_store: Entity<BufferStore>,
 344        environment: Entity<ProjectEnvironment>,
 345        fs: Arc<dyn Fs>,
 346        cx: &mut Context<Self>,
 347    ) -> Self {
 348        Self::new(
 349            worktree_store.clone(),
 350            buffer_store,
 351            GitStoreState::Local {
 352                next_repository_id: Arc::new(AtomicU64::new(1)),
 353                downstream: None,
 354                project_environment: environment,
 355                fs,
 356            },
 357            cx,
 358        )
 359    }
 360
 361    pub fn remote(
 362        worktree_store: &Entity<WorktreeStore>,
 363        buffer_store: Entity<BufferStore>,
 364        upstream_client: AnyProtoClient,
 365        project_id: u64,
 366        cx: &mut Context<Self>,
 367    ) -> Self {
 368        Self::new(
 369            worktree_store.clone(),
 370            buffer_store,
 371            GitStoreState::Remote {
 372                upstream_client,
 373                upstream_project_id: project_id,
 374                downstream: None,
 375            },
 376            cx,
 377        )
 378    }
 379
 380    fn new(
 381        worktree_store: Entity<WorktreeStore>,
 382        buffer_store: Entity<BufferStore>,
 383        state: GitStoreState,
 384        cx: &mut Context<Self>,
 385    ) -> Self {
 386        let _subscriptions = vec![
 387            cx.subscribe(&worktree_store, Self::on_worktree_store_event),
 388            cx.subscribe(&buffer_store, Self::on_buffer_store_event),
 389        ];
 390
 391        GitStore {
 392            state,
 393            buffer_store,
 394            worktree_store,
 395            repositories: HashMap::default(),
 396            active_repo_id: None,
 397            _subscriptions,
 398            loading_diffs: HashMap::default(),
 399            shared_diffs: HashMap::default(),
 400            diffs: HashMap::default(),
 401        }
 402    }
 403
 404    pub fn init(client: &AnyProtoClient) {
 405        client.add_entity_request_handler(Self::handle_get_remotes);
 406        client.add_entity_request_handler(Self::handle_get_branches);
 407        client.add_entity_request_handler(Self::handle_get_default_branch);
 408        client.add_entity_request_handler(Self::handle_change_branch);
 409        client.add_entity_request_handler(Self::handle_create_branch);
 410        client.add_entity_request_handler(Self::handle_rename_branch);
 411        client.add_entity_request_handler(Self::handle_git_init);
 412        client.add_entity_request_handler(Self::handle_push);
 413        client.add_entity_request_handler(Self::handle_pull);
 414        client.add_entity_request_handler(Self::handle_fetch);
 415        client.add_entity_request_handler(Self::handle_stage);
 416        client.add_entity_request_handler(Self::handle_unstage);
 417        client.add_entity_request_handler(Self::handle_stash);
 418        client.add_entity_request_handler(Self::handle_stash_pop);
 419        client.add_entity_request_handler(Self::handle_stash_apply);
 420        client.add_entity_request_handler(Self::handle_stash_drop);
 421        client.add_entity_request_handler(Self::handle_commit);
 422        client.add_entity_request_handler(Self::handle_reset);
 423        client.add_entity_request_handler(Self::handle_show);
 424        client.add_entity_request_handler(Self::handle_load_commit_diff);
 425        client.add_entity_request_handler(Self::handle_checkout_files);
 426        client.add_entity_request_handler(Self::handle_open_commit_message_buffer);
 427        client.add_entity_request_handler(Self::handle_set_index_text);
 428        client.add_entity_request_handler(Self::handle_askpass);
 429        client.add_entity_request_handler(Self::handle_check_for_pushed_commits);
 430        client.add_entity_request_handler(Self::handle_git_diff);
 431        client.add_entity_request_handler(Self::handle_open_unstaged_diff);
 432        client.add_entity_request_handler(Self::handle_open_uncommitted_diff);
 433        client.add_entity_message_handler(Self::handle_update_diff_bases);
 434        client.add_entity_request_handler(Self::handle_get_permalink_to_line);
 435        client.add_entity_request_handler(Self::handle_blame_buffer);
 436        client.add_entity_message_handler(Self::handle_update_repository);
 437        client.add_entity_message_handler(Self::handle_remove_repository);
 438        client.add_entity_request_handler(Self::handle_git_clone);
 439    }
 440
 441    pub fn is_local(&self) -> bool {
 442        matches!(self.state, GitStoreState::Local { .. })
 443    }
 444    pub fn set_active_repo_for_path(&mut self, project_path: &ProjectPath, cx: &mut Context<Self>) {
 445        if let Some((repo, _)) = self.repository_and_path_for_project_path(project_path, cx) {
 446            let id = repo.read(cx).id;
 447            if self.active_repo_id != Some(id) {
 448                self.active_repo_id = Some(id);
 449                cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
 450            }
 451        }
 452    }
 453
 454    pub fn shared(&mut self, project_id: u64, client: AnyProtoClient, cx: &mut Context<Self>) {
 455        match &mut self.state {
 456            GitStoreState::Remote {
 457                downstream: downstream_client,
 458                ..
 459            } => {
 460                for repo in self.repositories.values() {
 461                    let update = repo.read(cx).snapshot.initial_update(project_id);
 462                    for update in split_repository_update(update) {
 463                        client.send(update).log_err();
 464                    }
 465                }
 466                *downstream_client = Some((client, ProjectId(project_id)));
 467            }
 468            GitStoreState::Local {
 469                downstream: downstream_client,
 470                ..
 471            } => {
 472                let mut snapshots = HashMap::default();
 473                let (updates_tx, mut updates_rx) = mpsc::unbounded();
 474                for repo in self.repositories.values() {
 475                    updates_tx
 476                        .unbounded_send(DownstreamUpdate::UpdateRepository(
 477                            repo.read(cx).snapshot.clone(),
 478                        ))
 479                        .ok();
 480                }
 481                *downstream_client = Some(LocalDownstreamState {
 482                    client: client.clone(),
 483                    project_id: ProjectId(project_id),
 484                    updates_tx,
 485                    _task: cx.spawn(async move |this, cx| {
 486                        cx.background_spawn(async move {
 487                            while let Some(update) = updates_rx.next().await {
 488                                match update {
 489                                    DownstreamUpdate::UpdateRepository(snapshot) => {
 490                                        if let Some(old_snapshot) = snapshots.get_mut(&snapshot.id)
 491                                        {
 492                                            let update =
 493                                                snapshot.build_update(old_snapshot, project_id);
 494                                            *old_snapshot = snapshot;
 495                                            for update in split_repository_update(update) {
 496                                                client.send(update)?;
 497                                            }
 498                                        } else {
 499                                            let update = snapshot.initial_update(project_id);
 500                                            for update in split_repository_update(update) {
 501                                                client.send(update)?;
 502                                            }
 503                                            snapshots.insert(snapshot.id, snapshot);
 504                                        }
 505                                    }
 506                                    DownstreamUpdate::RemoveRepository(id) => {
 507                                        client.send(proto::RemoveRepository {
 508                                            project_id,
 509                                            id: id.to_proto(),
 510                                        })?;
 511                                    }
 512                                }
 513                            }
 514                            anyhow::Ok(())
 515                        })
 516                        .await
 517                        .ok();
 518                        this.update(cx, |this, _| {
 519                            if let GitStoreState::Local {
 520                                downstream: downstream_client,
 521                                ..
 522                            } = &mut this.state
 523                            {
 524                                downstream_client.take();
 525                            } else {
 526                                unreachable!("unshared called on remote store");
 527                            }
 528                        })
 529                    }),
 530                });
 531            }
 532        }
 533    }
 534
 535    pub fn unshared(&mut self, _cx: &mut Context<Self>) {
 536        match &mut self.state {
 537            GitStoreState::Local {
 538                downstream: downstream_client,
 539                ..
 540            } => {
 541                downstream_client.take();
 542            }
 543            GitStoreState::Remote {
 544                downstream: downstream_client,
 545                ..
 546            } => {
 547                downstream_client.take();
 548            }
 549        }
 550        self.shared_diffs.clear();
 551    }
 552
 553    pub(crate) fn forget_shared_diffs_for(&mut self, peer_id: &proto::PeerId) {
 554        self.shared_diffs.remove(peer_id);
 555    }
 556
 557    pub fn active_repository(&self) -> Option<Entity<Repository>> {
 558        self.active_repo_id
 559            .as_ref()
 560            .map(|id| self.repositories[id].clone())
 561    }
 562
 563    pub fn open_unstaged_diff(
 564        &mut self,
 565        buffer: Entity<Buffer>,
 566        cx: &mut Context<Self>,
 567    ) -> Task<Result<Entity<BufferDiff>>> {
 568        let buffer_id = buffer.read(cx).remote_id();
 569        if let Some(diff_state) = self.diffs.get(&buffer_id)
 570            && let Some(unstaged_diff) = diff_state
 571                .read(cx)
 572                .unstaged_diff
 573                .as_ref()
 574                .and_then(|weak| weak.upgrade())
 575        {
 576            if let Some(task) =
 577                diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 578            {
 579                return cx.background_executor().spawn(async move {
 580                    task.await;
 581                    Ok(unstaged_diff)
 582                });
 583            }
 584            return Task::ready(Ok(unstaged_diff));
 585        }
 586
 587        let Some((repo, repo_path)) =
 588            self.repository_and_path_for_buffer_id(buffer.read(cx).remote_id(), cx)
 589        else {
 590            return Task::ready(Err(anyhow!("failed to find git repository for buffer")));
 591        };
 592
 593        let task = self
 594            .loading_diffs
 595            .entry((buffer_id, DiffKind::Unstaged))
 596            .or_insert_with(|| {
 597                let staged_text = repo.update(cx, |repo, cx| {
 598                    repo.load_staged_text(buffer_id, repo_path, cx)
 599                });
 600                cx.spawn(async move |this, cx| {
 601                    Self::open_diff_internal(
 602                        this,
 603                        DiffKind::Unstaged,
 604                        staged_text.await.map(DiffBasesChange::SetIndex),
 605                        buffer,
 606                        cx,
 607                    )
 608                    .await
 609                    .map_err(Arc::new)
 610                })
 611                .shared()
 612            })
 613            .clone();
 614
 615        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 616    }
 617
 618    pub fn open_uncommitted_diff(
 619        &mut self,
 620        buffer: Entity<Buffer>,
 621        cx: &mut Context<Self>,
 622    ) -> Task<Result<Entity<BufferDiff>>> {
 623        let buffer_id = buffer.read(cx).remote_id();
 624
 625        if let Some(diff_state) = self.diffs.get(&buffer_id)
 626            && let Some(uncommitted_diff) = diff_state
 627                .read(cx)
 628                .uncommitted_diff
 629                .as_ref()
 630                .and_then(|weak| weak.upgrade())
 631        {
 632            if let Some(task) =
 633                diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 634            {
 635                return cx.background_executor().spawn(async move {
 636                    task.await;
 637                    Ok(uncommitted_diff)
 638                });
 639            }
 640            return Task::ready(Ok(uncommitted_diff));
 641        }
 642
 643        let Some((repo, repo_path)) =
 644            self.repository_and_path_for_buffer_id(buffer.read(cx).remote_id(), cx)
 645        else {
 646            return Task::ready(Err(anyhow!("failed to find git repository for buffer")));
 647        };
 648
 649        let task = self
 650            .loading_diffs
 651            .entry((buffer_id, DiffKind::Uncommitted))
 652            .or_insert_with(|| {
 653                let changes = repo.update(cx, |repo, cx| {
 654                    repo.load_committed_text(buffer_id, repo_path, cx)
 655                });
 656
 657                cx.spawn(async move |this, cx| {
 658                    Self::open_diff_internal(this, DiffKind::Uncommitted, changes.await, buffer, cx)
 659                        .await
 660                        .map_err(Arc::new)
 661                })
 662                .shared()
 663            })
 664            .clone();
 665
 666        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 667    }
 668
 669    async fn open_diff_internal(
 670        this: WeakEntity<Self>,
 671        kind: DiffKind,
 672        texts: Result<DiffBasesChange>,
 673        buffer_entity: Entity<Buffer>,
 674        cx: &mut AsyncApp,
 675    ) -> Result<Entity<BufferDiff>> {
 676        let diff_bases_change = match texts {
 677            Err(e) => {
 678                this.update(cx, |this, cx| {
 679                    let buffer = buffer_entity.read(cx);
 680                    let buffer_id = buffer.remote_id();
 681                    this.loading_diffs.remove(&(buffer_id, kind));
 682                })?;
 683                return Err(e);
 684            }
 685            Ok(change) => change,
 686        };
 687
 688        this.update(cx, |this, cx| {
 689            let buffer = buffer_entity.read(cx);
 690            let buffer_id = buffer.remote_id();
 691            let language = buffer.language().cloned();
 692            let language_registry = buffer.language_registry();
 693            let text_snapshot = buffer.text_snapshot();
 694            this.loading_diffs.remove(&(buffer_id, kind));
 695
 696            let git_store = cx.weak_entity();
 697            let diff_state = this
 698                .diffs
 699                .entry(buffer_id)
 700                .or_insert_with(|| cx.new(|_| BufferGitState::new(git_store)));
 701
 702            let diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
 703
 704            cx.subscribe(&diff, Self::on_buffer_diff_event).detach();
 705            diff_state.update(cx, |diff_state, cx| {
 706                diff_state.language = language;
 707                diff_state.language_registry = language_registry;
 708
 709                match kind {
 710                    DiffKind::Unstaged => diff_state.unstaged_diff = Some(diff.downgrade()),
 711                    DiffKind::Uncommitted => {
 712                        let unstaged_diff = if let Some(diff) = diff_state.unstaged_diff() {
 713                            diff
 714                        } else {
 715                            let unstaged_diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
 716                            diff_state.unstaged_diff = Some(unstaged_diff.downgrade());
 717                            unstaged_diff
 718                        };
 719
 720                        diff.update(cx, |diff, _| diff.set_secondary_diff(unstaged_diff));
 721                        diff_state.uncommitted_diff = Some(diff.downgrade())
 722                    }
 723                }
 724
 725                diff_state.diff_bases_changed(text_snapshot, Some(diff_bases_change), cx);
 726                let rx = diff_state.wait_for_recalculation();
 727
 728                anyhow::Ok(async move {
 729                    if let Some(rx) = rx {
 730                        rx.await;
 731                    }
 732                    Ok(diff)
 733                })
 734            })
 735        })??
 736        .await
 737    }
 738
 739    pub fn get_unstaged_diff(&self, buffer_id: BufferId, cx: &App) -> Option<Entity<BufferDiff>> {
 740        let diff_state = self.diffs.get(&buffer_id)?;
 741        diff_state.read(cx).unstaged_diff.as_ref()?.upgrade()
 742    }
 743
 744    pub fn get_uncommitted_diff(
 745        &self,
 746        buffer_id: BufferId,
 747        cx: &App,
 748    ) -> Option<Entity<BufferDiff>> {
 749        let diff_state = self.diffs.get(&buffer_id)?;
 750        diff_state.read(cx).uncommitted_diff.as_ref()?.upgrade()
 751    }
 752
 753    pub fn open_conflict_set(
 754        &mut self,
 755        buffer: Entity<Buffer>,
 756        cx: &mut Context<Self>,
 757    ) -> Entity<ConflictSet> {
 758        log::debug!("open conflict set");
 759        let buffer_id = buffer.read(cx).remote_id();
 760
 761        if let Some(git_state) = self.diffs.get(&buffer_id)
 762            && let Some(conflict_set) = git_state
 763                .read(cx)
 764                .conflict_set
 765                .as_ref()
 766                .and_then(|weak| weak.upgrade())
 767        {
 768            let conflict_set = conflict_set;
 769            let buffer_snapshot = buffer.read(cx).text_snapshot();
 770
 771            git_state.update(cx, |state, cx| {
 772                let _ = state.reparse_conflict_markers(buffer_snapshot, cx);
 773            });
 774
 775            return conflict_set;
 776        }
 777
 778        let is_unmerged = self
 779            .repository_and_path_for_buffer_id(buffer_id, cx)
 780            .is_some_and(|(repo, path)| repo.read(cx).snapshot.has_conflict(&path));
 781        let git_store = cx.weak_entity();
 782        let buffer_git_state = self
 783            .diffs
 784            .entry(buffer_id)
 785            .or_insert_with(|| cx.new(|_| BufferGitState::new(git_store)));
 786        let conflict_set = cx.new(|cx| ConflictSet::new(buffer_id, is_unmerged, cx));
 787
 788        self._subscriptions
 789            .push(cx.subscribe(&conflict_set, |_, _, _, cx| {
 790                cx.emit(GitStoreEvent::ConflictsUpdated);
 791            }));
 792
 793        buffer_git_state.update(cx, |state, cx| {
 794            state.conflict_set = Some(conflict_set.downgrade());
 795            let buffer_snapshot = buffer.read(cx).text_snapshot();
 796            let _ = state.reparse_conflict_markers(buffer_snapshot, cx);
 797        });
 798
 799        conflict_set
 800    }
 801
 802    pub fn project_path_git_status(
 803        &self,
 804        project_path: &ProjectPath,
 805        cx: &App,
 806    ) -> Option<FileStatus> {
 807        let (repo, repo_path) = self.repository_and_path_for_project_path(project_path, cx)?;
 808        Some(repo.read(cx).status_for_path(&repo_path)?.status)
 809    }
 810
 811    pub fn checkpoint(&self, cx: &mut App) -> Task<Result<GitStoreCheckpoint>> {
 812        let mut work_directory_abs_paths = Vec::new();
 813        let mut checkpoints = Vec::new();
 814        for repository in self.repositories.values() {
 815            repository.update(cx, |repository, _| {
 816                work_directory_abs_paths.push(repository.snapshot.work_directory_abs_path.clone());
 817                checkpoints.push(repository.checkpoint().map(|checkpoint| checkpoint?));
 818            });
 819        }
 820
 821        cx.background_executor().spawn(async move {
 822            let checkpoints = future::try_join_all(checkpoints).await?;
 823            Ok(GitStoreCheckpoint {
 824                checkpoints_by_work_dir_abs_path: work_directory_abs_paths
 825                    .into_iter()
 826                    .zip(checkpoints)
 827                    .collect(),
 828            })
 829        })
 830    }
 831
 832    pub fn restore_checkpoint(
 833        &self,
 834        checkpoint: GitStoreCheckpoint,
 835        cx: &mut App,
 836    ) -> Task<Result<()>> {
 837        let repositories_by_work_dir_abs_path = self
 838            .repositories
 839            .values()
 840            .map(|repo| (repo.read(cx).snapshot.work_directory_abs_path.clone(), repo))
 841            .collect::<HashMap<_, _>>();
 842
 843        let mut tasks = Vec::new();
 844        for (work_dir_abs_path, checkpoint) in checkpoint.checkpoints_by_work_dir_abs_path {
 845            if let Some(repository) = repositories_by_work_dir_abs_path.get(&work_dir_abs_path) {
 846                let restore = repository.update(cx, |repository, _| {
 847                    repository.restore_checkpoint(checkpoint)
 848                });
 849                tasks.push(async move { restore.await? });
 850            }
 851        }
 852        cx.background_spawn(async move {
 853            future::try_join_all(tasks).await?;
 854            Ok(())
 855        })
 856    }
 857
 858    /// Compares two checkpoints, returning true if they are equal.
 859    pub fn compare_checkpoints(
 860        &self,
 861        left: GitStoreCheckpoint,
 862        mut right: GitStoreCheckpoint,
 863        cx: &mut App,
 864    ) -> Task<Result<bool>> {
 865        let repositories_by_work_dir_abs_path = self
 866            .repositories
 867            .values()
 868            .map(|repo| (repo.read(cx).snapshot.work_directory_abs_path.clone(), repo))
 869            .collect::<HashMap<_, _>>();
 870
 871        let mut tasks = Vec::new();
 872        for (work_dir_abs_path, left_checkpoint) in left.checkpoints_by_work_dir_abs_path {
 873            if let Some(right_checkpoint) = right
 874                .checkpoints_by_work_dir_abs_path
 875                .remove(&work_dir_abs_path)
 876            {
 877                if let Some(repository) = repositories_by_work_dir_abs_path.get(&work_dir_abs_path)
 878                {
 879                    let compare = repository.update(cx, |repository, _| {
 880                        repository.compare_checkpoints(left_checkpoint, right_checkpoint)
 881                    });
 882
 883                    tasks.push(async move { compare.await? });
 884                }
 885            } else {
 886                return Task::ready(Ok(false));
 887            }
 888        }
 889        cx.background_spawn(async move {
 890            Ok(future::try_join_all(tasks)
 891                .await?
 892                .into_iter()
 893                .all(|result| result))
 894        })
 895    }
 896
 897    /// Blames a buffer.
 898    pub fn blame_buffer(
 899        &self,
 900        buffer: &Entity<Buffer>,
 901        version: Option<clock::Global>,
 902        cx: &mut App,
 903    ) -> Task<Result<Option<Blame>>> {
 904        let buffer = buffer.read(cx);
 905        let Some((repo, repo_path)) =
 906            self.repository_and_path_for_buffer_id(buffer.remote_id(), cx)
 907        else {
 908            return Task::ready(Err(anyhow!("failed to find a git repository for buffer")));
 909        };
 910        let content = match &version {
 911            Some(version) => buffer.rope_for_version(version),
 912            None => buffer.as_rope().clone(),
 913        };
 914        let version = version.unwrap_or(buffer.version());
 915        let buffer_id = buffer.remote_id();
 916
 917        let rx = repo.update(cx, |repo, _| {
 918            repo.send_job(None, move |state, _| async move {
 919                match state {
 920                    RepositoryState::Local { backend, .. } => backend
 921                        .blame(repo_path.clone(), content)
 922                        .await
 923                        .with_context(|| format!("Failed to blame {:?}", repo_path.0))
 924                        .map(Some),
 925                    RepositoryState::Remote { project_id, client } => {
 926                        let response = client
 927                            .request(proto::BlameBuffer {
 928                                project_id: project_id.to_proto(),
 929                                buffer_id: buffer_id.into(),
 930                                version: serialize_version(&version),
 931                            })
 932                            .await?;
 933                        Ok(deserialize_blame_buffer_response(response))
 934                    }
 935                }
 936            })
 937        });
 938
 939        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
 940    }
 941
 942    pub fn get_permalink_to_line(
 943        &self,
 944        buffer: &Entity<Buffer>,
 945        selection: Range<u32>,
 946        cx: &mut App,
 947    ) -> Task<Result<url::Url>> {
 948        let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
 949            return Task::ready(Err(anyhow!("buffer has no file")));
 950        };
 951
 952        let Some((repo, repo_path)) = self.repository_and_path_for_project_path(
 953            &(file.worktree.read(cx).id(), file.path.clone()).into(),
 954            cx,
 955        ) else {
 956            // If we're not in a Git repo, check whether this is a Rust source
 957            // file in the Cargo registry (presumably opened with go-to-definition
 958            // from a normal Rust file). If so, we can put together a permalink
 959            // using crate metadata.
 960            if buffer
 961                .read(cx)
 962                .language()
 963                .is_none_or(|lang| lang.name() != "Rust".into())
 964            {
 965                return Task::ready(Err(anyhow!("no permalink available")));
 966            }
 967            let file_path = file.worktree.read(cx).absolutize(&file.path);
 968            return cx.spawn(async move |cx| {
 969                let provider_registry = cx.update(GitHostingProviderRegistry::default_global)?;
 970                get_permalink_in_rust_registry_src(provider_registry, file_path, selection)
 971                    .context("no permalink available")
 972            });
 973        };
 974
 975        let buffer_id = buffer.read(cx).remote_id();
 976        let branch = repo.read(cx).branch.clone();
 977        let remote = branch
 978            .as_ref()
 979            .and_then(|b| b.upstream.as_ref())
 980            .and_then(|b| b.remote_name())
 981            .unwrap_or("origin")
 982            .to_string();
 983
 984        let rx = repo.update(cx, |repo, _| {
 985            repo.send_job(None, move |state, cx| async move {
 986                match state {
 987                    RepositoryState::Local { backend, .. } => {
 988                        let origin_url = backend
 989                            .remote_url(&remote)
 990                            .with_context(|| format!("remote \"{remote}\" not found"))?;
 991
 992                        let sha = backend.head_sha().await.context("reading HEAD SHA")?;
 993
 994                        let provider_registry =
 995                            cx.update(GitHostingProviderRegistry::default_global)?;
 996
 997                        let (provider, remote) =
 998                            parse_git_remote_url(provider_registry, &origin_url)
 999                                .context("parsing Git remote URL")?;
1000
1001                        Ok(provider.build_permalink(
1002                            remote,
1003                            BuildPermalinkParams::new(&sha, &repo_path, Some(selection)),
1004                        ))
1005                    }
1006                    RepositoryState::Remote { project_id, client } => {
1007                        let response = client
1008                            .request(proto::GetPermalinkToLine {
1009                                project_id: project_id.to_proto(),
1010                                buffer_id: buffer_id.into(),
1011                                selection: Some(proto::Range {
1012                                    start: selection.start as u64,
1013                                    end: selection.end as u64,
1014                                }),
1015                            })
1016                            .await?;
1017
1018                        url::Url::parse(&response.permalink).context("failed to parse permalink")
1019                    }
1020                }
1021            })
1022        });
1023        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
1024    }
1025
1026    fn downstream_client(&self) -> Option<(AnyProtoClient, ProjectId)> {
1027        match &self.state {
1028            GitStoreState::Local {
1029                downstream: downstream_client,
1030                ..
1031            } => downstream_client
1032                .as_ref()
1033                .map(|state| (state.client.clone(), state.project_id)),
1034            GitStoreState::Remote {
1035                downstream: downstream_client,
1036                ..
1037            } => downstream_client.clone(),
1038        }
1039    }
1040
1041    fn upstream_client(&self) -> Option<AnyProtoClient> {
1042        match &self.state {
1043            GitStoreState::Local { .. } => None,
1044            GitStoreState::Remote {
1045                upstream_client, ..
1046            } => Some(upstream_client.clone()),
1047        }
1048    }
1049
1050    fn on_worktree_store_event(
1051        &mut self,
1052        worktree_store: Entity<WorktreeStore>,
1053        event: &WorktreeStoreEvent,
1054        cx: &mut Context<Self>,
1055    ) {
1056        let GitStoreState::Local {
1057            project_environment,
1058            downstream,
1059            next_repository_id,
1060            fs,
1061        } = &self.state
1062        else {
1063            return;
1064        };
1065
1066        match event {
1067            WorktreeStoreEvent::WorktreeUpdatedEntries(worktree_id, updated_entries) => {
1068                if let Some(worktree) = self
1069                    .worktree_store
1070                    .read(cx)
1071                    .worktree_for_id(*worktree_id, cx)
1072                {
1073                    let paths_by_git_repo =
1074                        self.process_updated_entries(&worktree, updated_entries, cx);
1075                    let downstream = downstream
1076                        .as_ref()
1077                        .map(|downstream| downstream.updates_tx.clone());
1078                    cx.spawn(async move |_, cx| {
1079                        let paths_by_git_repo = paths_by_git_repo.await;
1080                        for (repo, paths) in paths_by_git_repo {
1081                            repo.update(cx, |repo, cx| {
1082                                repo.paths_changed(paths, downstream.clone(), cx);
1083                            })
1084                            .ok();
1085                        }
1086                    })
1087                    .detach();
1088                }
1089            }
1090            WorktreeStoreEvent::WorktreeUpdatedGitRepositories(worktree_id, changed_repos) => {
1091                let Some(worktree) = worktree_store.read(cx).worktree_for_id(*worktree_id, cx)
1092                else {
1093                    return;
1094                };
1095                if !worktree.read(cx).is_visible() {
1096                    log::debug!(
1097                        "not adding repositories for local worktree {:?} because it's not visible",
1098                        worktree.read(cx).abs_path()
1099                    );
1100                    return;
1101                }
1102                self.update_repositories_from_worktree(
1103                    project_environment.clone(),
1104                    next_repository_id.clone(),
1105                    downstream
1106                        .as_ref()
1107                        .map(|downstream| downstream.updates_tx.clone()),
1108                    changed_repos.clone(),
1109                    fs.clone(),
1110                    cx,
1111                );
1112                self.local_worktree_git_repos_changed(worktree, changed_repos, cx);
1113            }
1114            _ => {}
1115        }
1116    }
1117    fn on_repository_event(
1118        &mut self,
1119        repo: Entity<Repository>,
1120        event: &RepositoryEvent,
1121        cx: &mut Context<Self>,
1122    ) {
1123        let id = repo.read(cx).id;
1124        let repo_snapshot = repo.read(cx).snapshot.clone();
1125        for (buffer_id, diff) in self.diffs.iter() {
1126            if let Some((buffer_repo, repo_path)) =
1127                self.repository_and_path_for_buffer_id(*buffer_id, cx)
1128                && buffer_repo == repo
1129            {
1130                diff.update(cx, |diff, cx| {
1131                    if let Some(conflict_set) = &diff.conflict_set {
1132                        let conflict_status_changed =
1133                            conflict_set.update(cx, |conflict_set, cx| {
1134                                let has_conflict = repo_snapshot.has_conflict(&repo_path);
1135                                conflict_set.set_has_conflict(has_conflict, cx)
1136                            })?;
1137                        if conflict_status_changed {
1138                            let buffer_store = self.buffer_store.read(cx);
1139                            if let Some(buffer) = buffer_store.get(*buffer_id) {
1140                                let _ = diff
1141                                    .reparse_conflict_markers(buffer.read(cx).text_snapshot(), cx);
1142                            }
1143                        }
1144                    }
1145                    anyhow::Ok(())
1146                })
1147                .ok();
1148            }
1149        }
1150        cx.emit(GitStoreEvent::RepositoryUpdated(
1151            id,
1152            event.clone(),
1153            self.active_repo_id == Some(id),
1154        ))
1155    }
1156
1157    fn on_jobs_updated(&mut self, _: Entity<Repository>, _: &JobsUpdated, cx: &mut Context<Self>) {
1158        cx.emit(GitStoreEvent::JobsUpdated)
1159    }
1160
1161    /// Update our list of repositories and schedule git scans in response to a notification from a worktree,
1162    fn update_repositories_from_worktree(
1163        &mut self,
1164        project_environment: Entity<ProjectEnvironment>,
1165        next_repository_id: Arc<AtomicU64>,
1166        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
1167        updated_git_repositories: UpdatedGitRepositoriesSet,
1168        fs: Arc<dyn Fs>,
1169        cx: &mut Context<Self>,
1170    ) {
1171        let mut removed_ids = Vec::new();
1172        for update in updated_git_repositories.iter() {
1173            if let Some((id, existing)) = self.repositories.iter().find(|(_, repo)| {
1174                let existing_work_directory_abs_path =
1175                    repo.read(cx).work_directory_abs_path.clone();
1176                Some(&existing_work_directory_abs_path)
1177                    == update.old_work_directory_abs_path.as_ref()
1178                    || Some(&existing_work_directory_abs_path)
1179                        == update.new_work_directory_abs_path.as_ref()
1180            }) {
1181                if let Some(new_work_directory_abs_path) =
1182                    update.new_work_directory_abs_path.clone()
1183                {
1184                    existing.update(cx, |existing, cx| {
1185                        existing.snapshot.work_directory_abs_path = new_work_directory_abs_path;
1186                        existing.schedule_scan(updates_tx.clone(), cx);
1187                    });
1188                } else {
1189                    removed_ids.push(*id);
1190                }
1191            } else if let UpdatedGitRepository {
1192                new_work_directory_abs_path: Some(work_directory_abs_path),
1193                dot_git_abs_path: Some(dot_git_abs_path),
1194                repository_dir_abs_path: Some(repository_dir_abs_path),
1195                common_dir_abs_path: Some(common_dir_abs_path),
1196                ..
1197            } = update
1198            {
1199                let id = RepositoryId(next_repository_id.fetch_add(1, atomic::Ordering::Release));
1200                let git_store = cx.weak_entity();
1201                let repo = cx.new(|cx| {
1202                    let mut repo = Repository::local(
1203                        id,
1204                        work_directory_abs_path.clone(),
1205                        dot_git_abs_path.clone(),
1206                        repository_dir_abs_path.clone(),
1207                        common_dir_abs_path.clone(),
1208                        project_environment.downgrade(),
1209                        fs.clone(),
1210                        git_store,
1211                        cx,
1212                    );
1213                    repo.schedule_scan(updates_tx.clone(), cx);
1214                    repo
1215                });
1216                self._subscriptions
1217                    .push(cx.subscribe(&repo, Self::on_repository_event));
1218                self._subscriptions
1219                    .push(cx.subscribe(&repo, Self::on_jobs_updated));
1220                self.repositories.insert(id, repo);
1221                cx.emit(GitStoreEvent::RepositoryAdded(id));
1222                self.active_repo_id.get_or_insert_with(|| {
1223                    cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
1224                    id
1225                });
1226            }
1227        }
1228
1229        for id in removed_ids {
1230            if self.active_repo_id == Some(id) {
1231                self.active_repo_id = None;
1232                cx.emit(GitStoreEvent::ActiveRepositoryChanged(None));
1233            }
1234            self.repositories.remove(&id);
1235            if let Some(updates_tx) = updates_tx.as_ref() {
1236                updates_tx
1237                    .unbounded_send(DownstreamUpdate::RemoveRepository(id))
1238                    .ok();
1239            }
1240        }
1241    }
1242
1243    fn on_buffer_store_event(
1244        &mut self,
1245        _: Entity<BufferStore>,
1246        event: &BufferStoreEvent,
1247        cx: &mut Context<Self>,
1248    ) {
1249        match event {
1250            BufferStoreEvent::BufferAdded(buffer) => {
1251                cx.subscribe(buffer, |this, buffer, event, cx| {
1252                    if let BufferEvent::LanguageChanged = event {
1253                        let buffer_id = buffer.read(cx).remote_id();
1254                        if let Some(diff_state) = this.diffs.get(&buffer_id) {
1255                            diff_state.update(cx, |diff_state, cx| {
1256                                diff_state.buffer_language_changed(buffer, cx);
1257                            });
1258                        }
1259                    }
1260                })
1261                .detach();
1262            }
1263            BufferStoreEvent::SharedBufferClosed(peer_id, buffer_id) => {
1264                if let Some(diffs) = self.shared_diffs.get_mut(peer_id) {
1265                    diffs.remove(buffer_id);
1266                }
1267            }
1268            BufferStoreEvent::BufferDropped(buffer_id) => {
1269                self.diffs.remove(buffer_id);
1270                for diffs in self.shared_diffs.values_mut() {
1271                    diffs.remove(buffer_id);
1272                }
1273            }
1274
1275            _ => {}
1276        }
1277    }
1278
1279    pub fn recalculate_buffer_diffs(
1280        &mut self,
1281        buffers: Vec<Entity<Buffer>>,
1282        cx: &mut Context<Self>,
1283    ) -> impl Future<Output = ()> + use<> {
1284        let mut futures = Vec::new();
1285        for buffer in buffers {
1286            if let Some(diff_state) = self.diffs.get_mut(&buffer.read(cx).remote_id()) {
1287                let buffer = buffer.read(cx).text_snapshot();
1288                diff_state.update(cx, |diff_state, cx| {
1289                    diff_state.recalculate_diffs(buffer.clone(), cx);
1290                    futures.extend(diff_state.wait_for_recalculation().map(FutureExt::boxed));
1291                });
1292                futures.push(diff_state.update(cx, |diff_state, cx| {
1293                    diff_state
1294                        .reparse_conflict_markers(buffer, cx)
1295                        .map(|_| {})
1296                        .boxed()
1297                }));
1298            }
1299        }
1300        async move {
1301            futures::future::join_all(futures).await;
1302        }
1303    }
1304
1305    fn on_buffer_diff_event(
1306        &mut self,
1307        diff: Entity<buffer_diff::BufferDiff>,
1308        event: &BufferDiffEvent,
1309        cx: &mut Context<Self>,
1310    ) {
1311        if let BufferDiffEvent::HunksStagedOrUnstaged(new_index_text) = event {
1312            let buffer_id = diff.read(cx).buffer_id;
1313            if let Some(diff_state) = self.diffs.get(&buffer_id) {
1314                let hunk_staging_operation_count = diff_state.update(cx, |diff_state, _| {
1315                    diff_state.hunk_staging_operation_count += 1;
1316                    diff_state.hunk_staging_operation_count
1317                });
1318                if let Some((repo, path)) = self.repository_and_path_for_buffer_id(buffer_id, cx) {
1319                    let recv = repo.update(cx, |repo, cx| {
1320                        log::debug!("hunks changed for {}", path.as_unix_str());
1321                        repo.spawn_set_index_text_job(
1322                            path,
1323                            new_index_text.as_ref().map(|rope| rope.to_string()),
1324                            Some(hunk_staging_operation_count),
1325                            cx,
1326                        )
1327                    });
1328                    let diff = diff.downgrade();
1329                    cx.spawn(async move |this, cx| {
1330                        if let Ok(Err(error)) = cx.background_spawn(recv).await {
1331                            diff.update(cx, |diff, cx| {
1332                                diff.clear_pending_hunks(cx);
1333                            })
1334                            .ok();
1335                            this.update(cx, |_, cx| cx.emit(GitStoreEvent::IndexWriteError(error)))
1336                                .ok();
1337                        }
1338                    })
1339                    .detach();
1340                }
1341            }
1342        }
1343    }
1344
1345    fn local_worktree_git_repos_changed(
1346        &mut self,
1347        worktree: Entity<Worktree>,
1348        changed_repos: &UpdatedGitRepositoriesSet,
1349        cx: &mut Context<Self>,
1350    ) {
1351        log::debug!("local worktree repos changed");
1352        debug_assert!(worktree.read(cx).is_local());
1353
1354        for repository in self.repositories.values() {
1355            repository.update(cx, |repository, cx| {
1356                let repo_abs_path = &repository.work_directory_abs_path;
1357                if changed_repos.iter().any(|update| {
1358                    update.old_work_directory_abs_path.as_ref() == Some(repo_abs_path)
1359                        || update.new_work_directory_abs_path.as_ref() == Some(repo_abs_path)
1360                }) {
1361                    repository.reload_buffer_diff_bases(cx);
1362                }
1363            });
1364        }
1365    }
1366
1367    pub fn repositories(&self) -> &HashMap<RepositoryId, Entity<Repository>> {
1368        &self.repositories
1369    }
1370
1371    pub fn status_for_buffer_id(&self, buffer_id: BufferId, cx: &App) -> Option<FileStatus> {
1372        let (repo, path) = self.repository_and_path_for_buffer_id(buffer_id, cx)?;
1373        let status = repo.read(cx).snapshot.status_for_path(&path)?;
1374        Some(status.status)
1375    }
1376
1377    pub fn repository_and_path_for_buffer_id(
1378        &self,
1379        buffer_id: BufferId,
1380        cx: &App,
1381    ) -> Option<(Entity<Repository>, RepoPath)> {
1382        let buffer = self.buffer_store.read(cx).get(buffer_id)?;
1383        let project_path = buffer.read(cx).project_path(cx)?;
1384        self.repository_and_path_for_project_path(&project_path, cx)
1385    }
1386
1387    pub fn repository_and_path_for_project_path(
1388        &self,
1389        path: &ProjectPath,
1390        cx: &App,
1391    ) -> Option<(Entity<Repository>, RepoPath)> {
1392        let abs_path = self.worktree_store.read(cx).absolutize(path, cx)?;
1393        self.repositories
1394            .values()
1395            .filter_map(|repo| {
1396                let repo_path = repo.read(cx).abs_path_to_repo_path(&abs_path)?;
1397                Some((repo.clone(), repo_path))
1398            })
1399            .max_by_key(|(repo, _)| repo.read(cx).work_directory_abs_path.clone())
1400    }
1401
1402    pub fn git_init(
1403        &self,
1404        path: Arc<Path>,
1405        fallback_branch_name: String,
1406        cx: &App,
1407    ) -> Task<Result<()>> {
1408        match &self.state {
1409            GitStoreState::Local { fs, .. } => {
1410                let fs = fs.clone();
1411                cx.background_executor()
1412                    .spawn(async move { fs.git_init(&path, fallback_branch_name).await })
1413            }
1414            GitStoreState::Remote {
1415                upstream_client,
1416                upstream_project_id: project_id,
1417                ..
1418            } => {
1419                let client = upstream_client.clone();
1420                let project_id = *project_id;
1421                cx.background_executor().spawn(async move {
1422                    client
1423                        .request(proto::GitInit {
1424                            project_id: project_id,
1425                            abs_path: path.to_string_lossy().into_owned(),
1426                            fallback_branch_name,
1427                        })
1428                        .await?;
1429                    Ok(())
1430                })
1431            }
1432        }
1433    }
1434
1435    pub fn git_clone(
1436        &self,
1437        repo: String,
1438        path: impl Into<Arc<std::path::Path>>,
1439        cx: &App,
1440    ) -> Task<Result<()>> {
1441        let path = path.into();
1442        match &self.state {
1443            GitStoreState::Local { fs, .. } => {
1444                let fs = fs.clone();
1445                cx.background_executor()
1446                    .spawn(async move { fs.git_clone(&repo, &path).await })
1447            }
1448            GitStoreState::Remote {
1449                upstream_client,
1450                upstream_project_id,
1451                ..
1452            } => {
1453                if upstream_client.is_via_collab() {
1454                    return Task::ready(Err(anyhow!(
1455                        "Git Clone isn't supported for project guests"
1456                    )));
1457                }
1458                let request = upstream_client.request(proto::GitClone {
1459                    project_id: *upstream_project_id,
1460                    abs_path: path.to_string_lossy().into_owned(),
1461                    remote_repo: repo,
1462                });
1463
1464                cx.background_spawn(async move {
1465                    let result = request.await?;
1466
1467                    match result.success {
1468                        true => Ok(()),
1469                        false => Err(anyhow!("Git Clone failed")),
1470                    }
1471                })
1472            }
1473        }
1474    }
1475
1476    async fn handle_update_repository(
1477        this: Entity<Self>,
1478        envelope: TypedEnvelope<proto::UpdateRepository>,
1479        mut cx: AsyncApp,
1480    ) -> Result<()> {
1481        this.update(&mut cx, |this, cx| {
1482            let path_style = this.worktree_store.read(cx).path_style();
1483            let mut update = envelope.payload;
1484
1485            let id = RepositoryId::from_proto(update.id);
1486            let client = this.upstream_client().context("no upstream client")?;
1487
1488            let mut is_new = false;
1489            let repo = this.repositories.entry(id).or_insert_with(|| {
1490                is_new = true;
1491                let git_store = cx.weak_entity();
1492                cx.new(|cx| {
1493                    Repository::remote(
1494                        id,
1495                        Path::new(&update.abs_path).into(),
1496                        path_style,
1497                        ProjectId(update.project_id),
1498                        client,
1499                        git_store,
1500                        cx,
1501                    )
1502                })
1503            });
1504            if is_new {
1505                this._subscriptions
1506                    .push(cx.subscribe(repo, Self::on_repository_event))
1507            }
1508
1509            repo.update(cx, {
1510                let update = update.clone();
1511                |repo, cx| repo.apply_remote_update(update, is_new, cx)
1512            })?;
1513
1514            this.active_repo_id.get_or_insert_with(|| {
1515                cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
1516                id
1517            });
1518
1519            if let Some((client, project_id)) = this.downstream_client() {
1520                update.project_id = project_id.to_proto();
1521                client.send(update).log_err();
1522            }
1523            Ok(())
1524        })?
1525    }
1526
1527    async fn handle_remove_repository(
1528        this: Entity<Self>,
1529        envelope: TypedEnvelope<proto::RemoveRepository>,
1530        mut cx: AsyncApp,
1531    ) -> Result<()> {
1532        this.update(&mut cx, |this, cx| {
1533            let mut update = envelope.payload;
1534            let id = RepositoryId::from_proto(update.id);
1535            this.repositories.remove(&id);
1536            if let Some((client, project_id)) = this.downstream_client() {
1537                update.project_id = project_id.to_proto();
1538                client.send(update).log_err();
1539            }
1540            if this.active_repo_id == Some(id) {
1541                this.active_repo_id = None;
1542                cx.emit(GitStoreEvent::ActiveRepositoryChanged(None));
1543            }
1544            cx.emit(GitStoreEvent::RepositoryRemoved(id));
1545        })
1546    }
1547
1548    async fn handle_git_init(
1549        this: Entity<Self>,
1550        envelope: TypedEnvelope<proto::GitInit>,
1551        cx: AsyncApp,
1552    ) -> Result<proto::Ack> {
1553        let path: Arc<Path> = PathBuf::from(envelope.payload.abs_path).into();
1554        let name = envelope.payload.fallback_branch_name;
1555        cx.update(|cx| this.read(cx).git_init(path, name, cx))?
1556            .await?;
1557
1558        Ok(proto::Ack {})
1559    }
1560
1561    async fn handle_git_clone(
1562        this: Entity<Self>,
1563        envelope: TypedEnvelope<proto::GitClone>,
1564        cx: AsyncApp,
1565    ) -> Result<proto::GitCloneResponse> {
1566        let path: Arc<Path> = PathBuf::from(envelope.payload.abs_path).into();
1567        let repo_name = envelope.payload.remote_repo;
1568        let result = cx
1569            .update(|cx| this.read(cx).git_clone(repo_name, path, cx))?
1570            .await;
1571
1572        Ok(proto::GitCloneResponse {
1573            success: result.is_ok(),
1574        })
1575    }
1576
1577    async fn handle_fetch(
1578        this: Entity<Self>,
1579        envelope: TypedEnvelope<proto::Fetch>,
1580        mut cx: AsyncApp,
1581    ) -> Result<proto::RemoteMessageResponse> {
1582        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1583        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1584        let fetch_options = FetchOptions::from_proto(envelope.payload.remote);
1585        let askpass_id = envelope.payload.askpass_id;
1586
1587        let askpass = make_remote_delegate(
1588            this,
1589            envelope.payload.project_id,
1590            repository_id,
1591            askpass_id,
1592            &mut cx,
1593        );
1594
1595        let remote_output = repository_handle
1596            .update(&mut cx, |repository_handle, cx| {
1597                repository_handle.fetch(fetch_options, askpass, cx)
1598            })?
1599            .await??;
1600
1601        Ok(proto::RemoteMessageResponse {
1602            stdout: remote_output.stdout,
1603            stderr: remote_output.stderr,
1604        })
1605    }
1606
1607    async fn handle_push(
1608        this: Entity<Self>,
1609        envelope: TypedEnvelope<proto::Push>,
1610        mut cx: AsyncApp,
1611    ) -> Result<proto::RemoteMessageResponse> {
1612        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1613        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1614
1615        let askpass_id = envelope.payload.askpass_id;
1616        let askpass = make_remote_delegate(
1617            this,
1618            envelope.payload.project_id,
1619            repository_id,
1620            askpass_id,
1621            &mut cx,
1622        );
1623
1624        let options = envelope
1625            .payload
1626            .options
1627            .as_ref()
1628            .map(|_| match envelope.payload.options() {
1629                proto::push::PushOptions::SetUpstream => git::repository::PushOptions::SetUpstream,
1630                proto::push::PushOptions::Force => git::repository::PushOptions::Force,
1631            });
1632
1633        let branch_name = envelope.payload.branch_name.into();
1634        let remote_name = envelope.payload.remote_name.into();
1635
1636        let remote_output = repository_handle
1637            .update(&mut cx, |repository_handle, cx| {
1638                repository_handle.push(branch_name, remote_name, options, askpass, cx)
1639            })?
1640            .await??;
1641        Ok(proto::RemoteMessageResponse {
1642            stdout: remote_output.stdout,
1643            stderr: remote_output.stderr,
1644        })
1645    }
1646
1647    async fn handle_pull(
1648        this: Entity<Self>,
1649        envelope: TypedEnvelope<proto::Pull>,
1650        mut cx: AsyncApp,
1651    ) -> Result<proto::RemoteMessageResponse> {
1652        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1653        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1654        let askpass_id = envelope.payload.askpass_id;
1655        let askpass = make_remote_delegate(
1656            this,
1657            envelope.payload.project_id,
1658            repository_id,
1659            askpass_id,
1660            &mut cx,
1661        );
1662
1663        let branch_name = envelope.payload.branch_name.into();
1664        let remote_name = envelope.payload.remote_name.into();
1665
1666        let remote_message = repository_handle
1667            .update(&mut cx, |repository_handle, cx| {
1668                repository_handle.pull(branch_name, remote_name, askpass, cx)
1669            })?
1670            .await??;
1671
1672        Ok(proto::RemoteMessageResponse {
1673            stdout: remote_message.stdout,
1674            stderr: remote_message.stderr,
1675        })
1676    }
1677
1678    async fn handle_stage(
1679        this: Entity<Self>,
1680        envelope: TypedEnvelope<proto::Stage>,
1681        mut cx: AsyncApp,
1682    ) -> Result<proto::Ack> {
1683        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1684        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1685
1686        let entries = envelope
1687            .payload
1688            .paths
1689            .into_iter()
1690            .map(|path| RepoPath::new(&path))
1691            .collect::<Result<Vec<_>>>()?;
1692
1693        repository_handle
1694            .update(&mut cx, |repository_handle, cx| {
1695                repository_handle.stage_entries(entries, cx)
1696            })?
1697            .await?;
1698        Ok(proto::Ack {})
1699    }
1700
1701    async fn handle_unstage(
1702        this: Entity<Self>,
1703        envelope: TypedEnvelope<proto::Unstage>,
1704        mut cx: AsyncApp,
1705    ) -> Result<proto::Ack> {
1706        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1707        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1708
1709        let entries = envelope
1710            .payload
1711            .paths
1712            .into_iter()
1713            .map(|path| RepoPath::new(&path))
1714            .collect::<Result<Vec<_>>>()?;
1715
1716        repository_handle
1717            .update(&mut cx, |repository_handle, cx| {
1718                repository_handle.unstage_entries(entries, cx)
1719            })?
1720            .await?;
1721
1722        Ok(proto::Ack {})
1723    }
1724
1725    async fn handle_stash(
1726        this: Entity<Self>,
1727        envelope: TypedEnvelope<proto::Stash>,
1728        mut cx: AsyncApp,
1729    ) -> Result<proto::Ack> {
1730        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1731        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1732
1733        let entries = envelope
1734            .payload
1735            .paths
1736            .into_iter()
1737            .map(|path| RepoPath::new(&path))
1738            .collect::<Result<Vec<_>>>()?;
1739
1740        repository_handle
1741            .update(&mut cx, |repository_handle, cx| {
1742                repository_handle.stash_entries(entries, cx)
1743            })?
1744            .await?;
1745
1746        Ok(proto::Ack {})
1747    }
1748
1749    async fn handle_stash_pop(
1750        this: Entity<Self>,
1751        envelope: TypedEnvelope<proto::StashPop>,
1752        mut cx: AsyncApp,
1753    ) -> Result<proto::Ack> {
1754        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1755        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1756        let stash_index = envelope.payload.stash_index.map(|i| i as usize);
1757
1758        repository_handle
1759            .update(&mut cx, |repository_handle, cx| {
1760                repository_handle.stash_pop(stash_index, cx)
1761            })?
1762            .await?;
1763
1764        Ok(proto::Ack {})
1765    }
1766
1767    async fn handle_stash_apply(
1768        this: Entity<Self>,
1769        envelope: TypedEnvelope<proto::StashApply>,
1770        mut cx: AsyncApp,
1771    ) -> Result<proto::Ack> {
1772        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1773        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1774        let stash_index = envelope.payload.stash_index.map(|i| i as usize);
1775
1776        repository_handle
1777            .update(&mut cx, |repository_handle, cx| {
1778                repository_handle.stash_apply(stash_index, cx)
1779            })?
1780            .await?;
1781
1782        Ok(proto::Ack {})
1783    }
1784
1785    async fn handle_stash_drop(
1786        this: Entity<Self>,
1787        envelope: TypedEnvelope<proto::StashDrop>,
1788        mut cx: AsyncApp,
1789    ) -> Result<proto::Ack> {
1790        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1791        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1792        let stash_index = envelope.payload.stash_index.map(|i| i as usize);
1793
1794        repository_handle
1795            .update(&mut cx, |repository_handle, cx| {
1796                repository_handle.stash_drop(stash_index, cx)
1797            })?
1798            .await??;
1799
1800        Ok(proto::Ack {})
1801    }
1802
1803    async fn handle_set_index_text(
1804        this: Entity<Self>,
1805        envelope: TypedEnvelope<proto::SetIndexText>,
1806        mut cx: AsyncApp,
1807    ) -> Result<proto::Ack> {
1808        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1809        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1810        let repo_path = RepoPath::from_proto(&envelope.payload.path)?;
1811
1812        repository_handle
1813            .update(&mut cx, |repository_handle, cx| {
1814                repository_handle.spawn_set_index_text_job(
1815                    repo_path,
1816                    envelope.payload.text,
1817                    None,
1818                    cx,
1819                )
1820            })?
1821            .await??;
1822        Ok(proto::Ack {})
1823    }
1824
1825    async fn handle_commit(
1826        this: Entity<Self>,
1827        envelope: TypedEnvelope<proto::Commit>,
1828        mut cx: AsyncApp,
1829    ) -> Result<proto::Ack> {
1830        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1831        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1832
1833        let message = SharedString::from(envelope.payload.message);
1834        let name = envelope.payload.name.map(SharedString::from);
1835        let email = envelope.payload.email.map(SharedString::from);
1836        let options = envelope.payload.options.unwrap_or_default();
1837
1838        repository_handle
1839            .update(&mut cx, |repository_handle, cx| {
1840                repository_handle.commit(
1841                    message,
1842                    name.zip(email),
1843                    CommitOptions {
1844                        amend: options.amend,
1845                        signoff: options.signoff,
1846                    },
1847                    cx,
1848                )
1849            })?
1850            .await??;
1851        Ok(proto::Ack {})
1852    }
1853
1854    async fn handle_get_remotes(
1855        this: Entity<Self>,
1856        envelope: TypedEnvelope<proto::GetRemotes>,
1857        mut cx: AsyncApp,
1858    ) -> Result<proto::GetRemotesResponse> {
1859        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1860        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1861
1862        let branch_name = envelope.payload.branch_name;
1863
1864        let remotes = repository_handle
1865            .update(&mut cx, |repository_handle, _| {
1866                repository_handle.get_remotes(branch_name)
1867            })?
1868            .await??;
1869
1870        Ok(proto::GetRemotesResponse {
1871            remotes: remotes
1872                .into_iter()
1873                .map(|remotes| proto::get_remotes_response::Remote {
1874                    name: remotes.name.to_string(),
1875                })
1876                .collect::<Vec<_>>(),
1877        })
1878    }
1879
1880    async fn handle_get_branches(
1881        this: Entity<Self>,
1882        envelope: TypedEnvelope<proto::GitGetBranches>,
1883        mut cx: AsyncApp,
1884    ) -> Result<proto::GitBranchesResponse> {
1885        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1886        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1887
1888        let branches = repository_handle
1889            .update(&mut cx, |repository_handle, _| repository_handle.branches())?
1890            .await??;
1891
1892        Ok(proto::GitBranchesResponse {
1893            branches: branches
1894                .into_iter()
1895                .map(|branch| branch_to_proto(&branch))
1896                .collect::<Vec<_>>(),
1897        })
1898    }
1899    async fn handle_get_default_branch(
1900        this: Entity<Self>,
1901        envelope: TypedEnvelope<proto::GetDefaultBranch>,
1902        mut cx: AsyncApp,
1903    ) -> Result<proto::GetDefaultBranchResponse> {
1904        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1905        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1906
1907        let branch = repository_handle
1908            .update(&mut cx, |repository_handle, _| {
1909                repository_handle.default_branch()
1910            })?
1911            .await??
1912            .map(Into::into);
1913
1914        Ok(proto::GetDefaultBranchResponse { branch })
1915    }
1916    async fn handle_create_branch(
1917        this: Entity<Self>,
1918        envelope: TypedEnvelope<proto::GitCreateBranch>,
1919        mut cx: AsyncApp,
1920    ) -> Result<proto::Ack> {
1921        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1922        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1923        let branch_name = envelope.payload.branch_name;
1924
1925        repository_handle
1926            .update(&mut cx, |repository_handle, _| {
1927                repository_handle.create_branch(branch_name)
1928            })?
1929            .await??;
1930
1931        Ok(proto::Ack {})
1932    }
1933
1934    async fn handle_change_branch(
1935        this: Entity<Self>,
1936        envelope: TypedEnvelope<proto::GitChangeBranch>,
1937        mut cx: AsyncApp,
1938    ) -> Result<proto::Ack> {
1939        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1940        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1941        let branch_name = envelope.payload.branch_name;
1942
1943        repository_handle
1944            .update(&mut cx, |repository_handle, _| {
1945                repository_handle.change_branch(branch_name)
1946            })?
1947            .await??;
1948
1949        Ok(proto::Ack {})
1950    }
1951
1952    async fn handle_rename_branch(
1953        this: Entity<Self>,
1954        envelope: TypedEnvelope<proto::GitRenameBranch>,
1955        mut cx: AsyncApp,
1956    ) -> Result<proto::Ack> {
1957        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1958        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1959        let branch = envelope.payload.branch;
1960        let new_name = envelope.payload.new_name;
1961
1962        repository_handle
1963            .update(&mut cx, |repository_handle, _| {
1964                repository_handle.rename_branch(branch, new_name)
1965            })?
1966            .await??;
1967
1968        Ok(proto::Ack {})
1969    }
1970
1971    async fn handle_show(
1972        this: Entity<Self>,
1973        envelope: TypedEnvelope<proto::GitShow>,
1974        mut cx: AsyncApp,
1975    ) -> Result<proto::GitCommitDetails> {
1976        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1977        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
1978
1979        let commit = repository_handle
1980            .update(&mut cx, |repository_handle, _| {
1981                repository_handle.show(envelope.payload.commit)
1982            })?
1983            .await??;
1984        Ok(proto::GitCommitDetails {
1985            sha: commit.sha.into(),
1986            message: commit.message.into(),
1987            commit_timestamp: commit.commit_timestamp,
1988            author_email: commit.author_email.into(),
1989            author_name: commit.author_name.into(),
1990        })
1991    }
1992
1993    async fn handle_load_commit_diff(
1994        this: Entity<Self>,
1995        envelope: TypedEnvelope<proto::LoadCommitDiff>,
1996        mut cx: AsyncApp,
1997    ) -> Result<proto::LoadCommitDiffResponse> {
1998        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
1999        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2000
2001        let commit_diff = repository_handle
2002            .update(&mut cx, |repository_handle, _| {
2003                repository_handle.load_commit_diff(envelope.payload.commit)
2004            })?
2005            .await??;
2006        Ok(proto::LoadCommitDiffResponse {
2007            files: commit_diff
2008                .files
2009                .into_iter()
2010                .map(|file| proto::CommitFile {
2011                    path: file.path.to_proto(),
2012                    old_text: file.old_text,
2013                    new_text: file.new_text,
2014                })
2015                .collect(),
2016        })
2017    }
2018
2019    async fn handle_reset(
2020        this: Entity<Self>,
2021        envelope: TypedEnvelope<proto::GitReset>,
2022        mut cx: AsyncApp,
2023    ) -> Result<proto::Ack> {
2024        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2025        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2026
2027        let mode = match envelope.payload.mode() {
2028            git_reset::ResetMode::Soft => ResetMode::Soft,
2029            git_reset::ResetMode::Mixed => ResetMode::Mixed,
2030        };
2031
2032        repository_handle
2033            .update(&mut cx, |repository_handle, cx| {
2034                repository_handle.reset(envelope.payload.commit, mode, cx)
2035            })?
2036            .await??;
2037        Ok(proto::Ack {})
2038    }
2039
2040    async fn handle_checkout_files(
2041        this: Entity<Self>,
2042        envelope: TypedEnvelope<proto::GitCheckoutFiles>,
2043        mut cx: AsyncApp,
2044    ) -> Result<proto::Ack> {
2045        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2046        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2047        let paths = envelope
2048            .payload
2049            .paths
2050            .iter()
2051            .map(|s| RepoPath::from_proto(s))
2052            .collect::<Result<Vec<_>>>()?;
2053
2054        repository_handle
2055            .update(&mut cx, |repository_handle, cx| {
2056                repository_handle.checkout_files(&envelope.payload.commit, paths, cx)
2057            })?
2058            .await??;
2059        Ok(proto::Ack {})
2060    }
2061
2062    async fn handle_open_commit_message_buffer(
2063        this: Entity<Self>,
2064        envelope: TypedEnvelope<proto::OpenCommitMessageBuffer>,
2065        mut cx: AsyncApp,
2066    ) -> Result<proto::OpenBufferResponse> {
2067        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2068        let repository = Self::repository_for_request(&this, repository_id, &mut cx)?;
2069        let buffer = repository
2070            .update(&mut cx, |repository, cx| {
2071                repository.open_commit_buffer(None, this.read(cx).buffer_store.clone(), cx)
2072            })?
2073            .await?;
2074
2075        let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id())?;
2076        this.update(&mut cx, |this, cx| {
2077            this.buffer_store.update(cx, |buffer_store, cx| {
2078                buffer_store
2079                    .create_buffer_for_peer(
2080                        &buffer,
2081                        envelope.original_sender_id.unwrap_or(envelope.sender_id),
2082                        cx,
2083                    )
2084                    .detach_and_log_err(cx);
2085            })
2086        })?;
2087
2088        Ok(proto::OpenBufferResponse {
2089            buffer_id: buffer_id.to_proto(),
2090        })
2091    }
2092
2093    async fn handle_askpass(
2094        this: Entity<Self>,
2095        envelope: TypedEnvelope<proto::AskPassRequest>,
2096        mut cx: AsyncApp,
2097    ) -> Result<proto::AskPassResponse> {
2098        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2099        let repository = Self::repository_for_request(&this, repository_id, &mut cx)?;
2100
2101        let delegates = cx.update(|cx| repository.read(cx).askpass_delegates.clone())?;
2102        let Some(mut askpass) = delegates.lock().remove(&envelope.payload.askpass_id) else {
2103            debug_panic!("no askpass found");
2104            anyhow::bail!("no askpass found");
2105        };
2106
2107        let response = askpass
2108            .ask_password(envelope.payload.prompt)
2109            .await
2110            .ok_or_else(|| anyhow::anyhow!("askpass cancelled"))?;
2111
2112        delegates
2113            .lock()
2114            .insert(envelope.payload.askpass_id, askpass);
2115
2116        // In fact, we don't quite know what we're doing here, as we're sending askpass password unencrypted, but..
2117        Ok(proto::AskPassResponse {
2118            response: response.decrypt(IKnowWhatIAmDoingAndIHaveReadTheDocs)?,
2119        })
2120    }
2121
2122    async fn handle_check_for_pushed_commits(
2123        this: Entity<Self>,
2124        envelope: TypedEnvelope<proto::CheckForPushedCommits>,
2125        mut cx: AsyncApp,
2126    ) -> Result<proto::CheckForPushedCommitsResponse> {
2127        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2128        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2129
2130        let branches = repository_handle
2131            .update(&mut cx, |repository_handle, _| {
2132                repository_handle.check_for_pushed_commits()
2133            })?
2134            .await??;
2135        Ok(proto::CheckForPushedCommitsResponse {
2136            pushed_to: branches
2137                .into_iter()
2138                .map(|commit| commit.to_string())
2139                .collect(),
2140        })
2141    }
2142
2143    async fn handle_git_diff(
2144        this: Entity<Self>,
2145        envelope: TypedEnvelope<proto::GitDiff>,
2146        mut cx: AsyncApp,
2147    ) -> Result<proto::GitDiffResponse> {
2148        let repository_id = RepositoryId::from_proto(envelope.payload.repository_id);
2149        let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
2150        let diff_type = match envelope.payload.diff_type() {
2151            proto::git_diff::DiffType::HeadToIndex => DiffType::HeadToIndex,
2152            proto::git_diff::DiffType::HeadToWorktree => DiffType::HeadToWorktree,
2153        };
2154
2155        let mut diff = repository_handle
2156            .update(&mut cx, |repository_handle, cx| {
2157                repository_handle.diff(diff_type, cx)
2158            })?
2159            .await??;
2160        const ONE_MB: usize = 1_000_000;
2161        if diff.len() > ONE_MB {
2162            diff = diff.chars().take(ONE_MB).collect()
2163        }
2164
2165        Ok(proto::GitDiffResponse { diff })
2166    }
2167
2168    async fn handle_open_unstaged_diff(
2169        this: Entity<Self>,
2170        request: TypedEnvelope<proto::OpenUnstagedDiff>,
2171        mut cx: AsyncApp,
2172    ) -> Result<proto::OpenUnstagedDiffResponse> {
2173        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2174        let diff = this
2175            .update(&mut cx, |this, cx| {
2176                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2177                Some(this.open_unstaged_diff(buffer, cx))
2178            })?
2179            .context("missing buffer")?
2180            .await?;
2181        this.update(&mut cx, |this, _| {
2182            let shared_diffs = this
2183                .shared_diffs
2184                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2185                .or_default();
2186            shared_diffs.entry(buffer_id).or_default().unstaged = Some(diff.clone());
2187        })?;
2188        let staged_text = diff.read_with(&cx, |diff, _| diff.base_text_string())?;
2189        Ok(proto::OpenUnstagedDiffResponse { staged_text })
2190    }
2191
2192    async fn handle_open_uncommitted_diff(
2193        this: Entity<Self>,
2194        request: TypedEnvelope<proto::OpenUncommittedDiff>,
2195        mut cx: AsyncApp,
2196    ) -> Result<proto::OpenUncommittedDiffResponse> {
2197        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2198        let diff = this
2199            .update(&mut cx, |this, cx| {
2200                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2201                Some(this.open_uncommitted_diff(buffer, cx))
2202            })?
2203            .context("missing buffer")?
2204            .await?;
2205        this.update(&mut cx, |this, _| {
2206            let shared_diffs = this
2207                .shared_diffs
2208                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2209                .or_default();
2210            shared_diffs.entry(buffer_id).or_default().uncommitted = Some(diff.clone());
2211        })?;
2212        diff.read_with(&cx, |diff, cx| {
2213            use proto::open_uncommitted_diff_response::Mode;
2214
2215            let unstaged_diff = diff.secondary_diff();
2216            let index_snapshot = unstaged_diff.and_then(|diff| {
2217                let diff = diff.read(cx);
2218                diff.base_text_exists().then(|| diff.base_text())
2219            });
2220
2221            let mode;
2222            let staged_text;
2223            let committed_text;
2224            if diff.base_text_exists() {
2225                let committed_snapshot = diff.base_text();
2226                committed_text = Some(committed_snapshot.text());
2227                if let Some(index_text) = index_snapshot {
2228                    if index_text.remote_id() == committed_snapshot.remote_id() {
2229                        mode = Mode::IndexMatchesHead;
2230                        staged_text = None;
2231                    } else {
2232                        mode = Mode::IndexAndHead;
2233                        staged_text = Some(index_text.text());
2234                    }
2235                } else {
2236                    mode = Mode::IndexAndHead;
2237                    staged_text = None;
2238                }
2239            } else {
2240                mode = Mode::IndexAndHead;
2241                committed_text = None;
2242                staged_text = index_snapshot.as_ref().map(|buffer| buffer.text());
2243            }
2244
2245            proto::OpenUncommittedDiffResponse {
2246                committed_text,
2247                staged_text,
2248                mode: mode.into(),
2249            }
2250        })
2251    }
2252
2253    async fn handle_update_diff_bases(
2254        this: Entity<Self>,
2255        request: TypedEnvelope<proto::UpdateDiffBases>,
2256        mut cx: AsyncApp,
2257    ) -> Result<()> {
2258        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2259        this.update(&mut cx, |this, cx| {
2260            if let Some(diff_state) = this.diffs.get_mut(&buffer_id)
2261                && let Some(buffer) = this.buffer_store.read(cx).get(buffer_id)
2262            {
2263                let buffer = buffer.read(cx).text_snapshot();
2264                diff_state.update(cx, |diff_state, cx| {
2265                    diff_state.handle_base_texts_updated(buffer, request.payload, cx);
2266                })
2267            }
2268        })
2269    }
2270
2271    async fn handle_blame_buffer(
2272        this: Entity<Self>,
2273        envelope: TypedEnvelope<proto::BlameBuffer>,
2274        mut cx: AsyncApp,
2275    ) -> Result<proto::BlameBufferResponse> {
2276        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
2277        let version = deserialize_version(&envelope.payload.version);
2278        let buffer = this.read_with(&cx, |this, cx| {
2279            this.buffer_store.read(cx).get_existing(buffer_id)
2280        })??;
2281        buffer
2282            .update(&mut cx, |buffer, _| {
2283                buffer.wait_for_version(version.clone())
2284            })?
2285            .await?;
2286        let blame = this
2287            .update(&mut cx, |this, cx| {
2288                this.blame_buffer(&buffer, Some(version), cx)
2289            })?
2290            .await?;
2291        Ok(serialize_blame_buffer_response(blame))
2292    }
2293
2294    async fn handle_get_permalink_to_line(
2295        this: Entity<Self>,
2296        envelope: TypedEnvelope<proto::GetPermalinkToLine>,
2297        mut cx: AsyncApp,
2298    ) -> Result<proto::GetPermalinkToLineResponse> {
2299        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
2300        // let version = deserialize_version(&envelope.payload.version);
2301        let selection = {
2302            let proto_selection = envelope
2303                .payload
2304                .selection
2305                .context("no selection to get permalink for defined")?;
2306            proto_selection.start as u32..proto_selection.end as u32
2307        };
2308        let buffer = this.read_with(&cx, |this, cx| {
2309            this.buffer_store.read(cx).get_existing(buffer_id)
2310        })??;
2311        let permalink = this
2312            .update(&mut cx, |this, cx| {
2313                this.get_permalink_to_line(&buffer, selection, cx)
2314            })?
2315            .await?;
2316        Ok(proto::GetPermalinkToLineResponse {
2317            permalink: permalink.to_string(),
2318        })
2319    }
2320
2321    fn repository_for_request(
2322        this: &Entity<Self>,
2323        id: RepositoryId,
2324        cx: &mut AsyncApp,
2325    ) -> Result<Entity<Repository>> {
2326        this.read_with(cx, |this, _| {
2327            this.repositories
2328                .get(&id)
2329                .context("missing repository handle")
2330                .cloned()
2331        })?
2332    }
2333
2334    pub fn repo_snapshots(&self, cx: &App) -> HashMap<RepositoryId, RepositorySnapshot> {
2335        self.repositories
2336            .iter()
2337            .map(|(id, repo)| (*id, repo.read(cx).snapshot.clone()))
2338            .collect()
2339    }
2340
2341    fn process_updated_entries(
2342        &self,
2343        worktree: &Entity<Worktree>,
2344        updated_entries: &[(Arc<RelPath>, ProjectEntryId, PathChange)],
2345        cx: &mut App,
2346    ) -> Task<HashMap<Entity<Repository>, Vec<RepoPath>>> {
2347        let path_style = worktree.read(cx).path_style();
2348        let mut repo_paths = self
2349            .repositories
2350            .values()
2351            .map(|repo| (repo.read(cx).work_directory_abs_path.clone(), repo.clone()))
2352            .collect::<Vec<_>>();
2353        let mut entries: Vec<_> = updated_entries
2354            .iter()
2355            .map(|(path, _, _)| path.clone())
2356            .collect();
2357        entries.sort();
2358        let worktree = worktree.read(cx);
2359
2360        let entries = entries
2361            .into_iter()
2362            .map(|path| worktree.absolutize(&path))
2363            .collect::<Arc<[_]>>();
2364
2365        let executor = cx.background_executor().clone();
2366        cx.background_executor().spawn(async move {
2367            repo_paths.sort_by(|lhs, rhs| lhs.0.cmp(&rhs.0));
2368            let mut paths_by_git_repo = HashMap::<_, Vec<_>>::default();
2369            let mut tasks = FuturesOrdered::new();
2370            for (repo_path, repo) in repo_paths.into_iter().rev() {
2371                let entries = entries.clone();
2372                let task = executor.spawn(async move {
2373                    // Find all repository paths that belong to this repo
2374                    let mut ix = entries.partition_point(|path| path < &*repo_path);
2375                    if ix == entries.len() {
2376                        return None;
2377                    };
2378
2379                    let mut paths = Vec::new();
2380                    // All paths prefixed by a given repo will constitute a continuous range.
2381                    while let Some(path) = entries.get(ix)
2382                        && let Some(repo_path) = RepositorySnapshot::abs_path_to_repo_path_inner(
2383                            &repo_path, path, path_style,
2384                        )
2385                    {
2386                        paths.push((repo_path, ix));
2387                        ix += 1;
2388                    }
2389                    if paths.is_empty() {
2390                        None
2391                    } else {
2392                        Some((repo, paths))
2393                    }
2394                });
2395                tasks.push_back(task);
2396            }
2397
2398            // Now, let's filter out the "duplicate" entries that were processed by multiple distinct repos.
2399            let mut path_was_used = vec![false; entries.len()];
2400            let tasks = tasks.collect::<Vec<_>>().await;
2401            // Process tasks from the back: iterating backwards allows us to see more-specific paths first.
2402            // We always want to assign a path to it's innermost repository.
2403            for t in tasks {
2404                let Some((repo, paths)) = t else {
2405                    continue;
2406                };
2407                let entry = paths_by_git_repo.entry(repo).or_default();
2408                for (repo_path, ix) in paths {
2409                    if path_was_used[ix] {
2410                        continue;
2411                    }
2412                    path_was_used[ix] = true;
2413                    entry.push(repo_path);
2414                }
2415            }
2416
2417            paths_by_git_repo
2418        })
2419    }
2420}
2421
2422impl BufferGitState {
2423    fn new(_git_store: WeakEntity<GitStore>) -> Self {
2424        Self {
2425            unstaged_diff: Default::default(),
2426            uncommitted_diff: Default::default(),
2427            recalculate_diff_task: Default::default(),
2428            language: Default::default(),
2429            language_registry: Default::default(),
2430            recalculating_tx: postage::watch::channel_with(false).0,
2431            hunk_staging_operation_count: 0,
2432            hunk_staging_operation_count_as_of_write: 0,
2433            head_text: Default::default(),
2434            index_text: Default::default(),
2435            head_changed: Default::default(),
2436            index_changed: Default::default(),
2437            language_changed: Default::default(),
2438            conflict_updated_futures: Default::default(),
2439            conflict_set: Default::default(),
2440            reparse_conflict_markers_task: Default::default(),
2441        }
2442    }
2443
2444    fn buffer_language_changed(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
2445        self.language = buffer.read(cx).language().cloned();
2446        self.language_changed = true;
2447        let _ = self.recalculate_diffs(buffer.read(cx).text_snapshot(), cx);
2448    }
2449
2450    fn reparse_conflict_markers(
2451        &mut self,
2452        buffer: text::BufferSnapshot,
2453        cx: &mut Context<Self>,
2454    ) -> oneshot::Receiver<()> {
2455        let (tx, rx) = oneshot::channel();
2456
2457        let Some(conflict_set) = self
2458            .conflict_set
2459            .as_ref()
2460            .and_then(|conflict_set| conflict_set.upgrade())
2461        else {
2462            return rx;
2463        };
2464
2465        let old_snapshot = conflict_set.read_with(cx, |conflict_set, _| {
2466            if conflict_set.has_conflict {
2467                Some(conflict_set.snapshot())
2468            } else {
2469                None
2470            }
2471        });
2472
2473        if let Some(old_snapshot) = old_snapshot {
2474            self.conflict_updated_futures.push(tx);
2475            self.reparse_conflict_markers_task = Some(cx.spawn(async move |this, cx| {
2476                let (snapshot, changed_range) = cx
2477                    .background_spawn(async move {
2478                        let new_snapshot = ConflictSet::parse(&buffer);
2479                        let changed_range = old_snapshot.compare(&new_snapshot, &buffer);
2480                        (new_snapshot, changed_range)
2481                    })
2482                    .await;
2483                this.update(cx, |this, cx| {
2484                    if let Some(conflict_set) = &this.conflict_set {
2485                        conflict_set
2486                            .update(cx, |conflict_set, cx| {
2487                                conflict_set.set_snapshot(snapshot, changed_range, cx);
2488                            })
2489                            .ok();
2490                    }
2491                    let futures = std::mem::take(&mut this.conflict_updated_futures);
2492                    for tx in futures {
2493                        tx.send(()).ok();
2494                    }
2495                })
2496            }))
2497        }
2498
2499        rx
2500    }
2501
2502    fn unstaged_diff(&self) -> Option<Entity<BufferDiff>> {
2503        self.unstaged_diff.as_ref().and_then(|set| set.upgrade())
2504    }
2505
2506    fn uncommitted_diff(&self) -> Option<Entity<BufferDiff>> {
2507        self.uncommitted_diff.as_ref().and_then(|set| set.upgrade())
2508    }
2509
2510    fn handle_base_texts_updated(
2511        &mut self,
2512        buffer: text::BufferSnapshot,
2513        message: proto::UpdateDiffBases,
2514        cx: &mut Context<Self>,
2515    ) {
2516        use proto::update_diff_bases::Mode;
2517
2518        let Some(mode) = Mode::from_i32(message.mode) else {
2519            return;
2520        };
2521
2522        let diff_bases_change = match mode {
2523            Mode::HeadOnly => DiffBasesChange::SetHead(message.committed_text),
2524            Mode::IndexOnly => DiffBasesChange::SetIndex(message.staged_text),
2525            Mode::IndexMatchesHead => DiffBasesChange::SetBoth(message.committed_text),
2526            Mode::IndexAndHead => DiffBasesChange::SetEach {
2527                index: message.staged_text,
2528                head: message.committed_text,
2529            },
2530        };
2531
2532        self.diff_bases_changed(buffer, Some(diff_bases_change), cx);
2533    }
2534
2535    pub fn wait_for_recalculation(&mut self) -> Option<impl Future<Output = ()> + use<>> {
2536        if *self.recalculating_tx.borrow() {
2537            let mut rx = self.recalculating_tx.subscribe();
2538            Some(async move {
2539                loop {
2540                    let is_recalculating = rx.recv().await;
2541                    if is_recalculating != Some(true) {
2542                        break;
2543                    }
2544                }
2545            })
2546        } else {
2547            None
2548        }
2549    }
2550
2551    fn diff_bases_changed(
2552        &mut self,
2553        buffer: text::BufferSnapshot,
2554        diff_bases_change: Option<DiffBasesChange>,
2555        cx: &mut Context<Self>,
2556    ) {
2557        match diff_bases_change {
2558            Some(DiffBasesChange::SetIndex(index)) => {
2559                self.index_text = index.map(|mut index| {
2560                    text::LineEnding::normalize(&mut index);
2561                    Arc::new(index)
2562                });
2563                self.index_changed = true;
2564            }
2565            Some(DiffBasesChange::SetHead(head)) => {
2566                self.head_text = head.map(|mut head| {
2567                    text::LineEnding::normalize(&mut head);
2568                    Arc::new(head)
2569                });
2570                self.head_changed = true;
2571            }
2572            Some(DiffBasesChange::SetBoth(text)) => {
2573                let text = text.map(|mut text| {
2574                    text::LineEnding::normalize(&mut text);
2575                    Arc::new(text)
2576                });
2577                self.head_text = text.clone();
2578                self.index_text = text;
2579                self.head_changed = true;
2580                self.index_changed = true;
2581            }
2582            Some(DiffBasesChange::SetEach { index, head }) => {
2583                self.index_text = index.map(|mut index| {
2584                    text::LineEnding::normalize(&mut index);
2585                    Arc::new(index)
2586                });
2587                self.index_changed = true;
2588                self.head_text = head.map(|mut head| {
2589                    text::LineEnding::normalize(&mut head);
2590                    Arc::new(head)
2591                });
2592                self.head_changed = true;
2593            }
2594            None => {}
2595        }
2596
2597        self.recalculate_diffs(buffer, cx)
2598    }
2599
2600    fn recalculate_diffs(&mut self, buffer: text::BufferSnapshot, cx: &mut Context<Self>) {
2601        *self.recalculating_tx.borrow_mut() = true;
2602
2603        let language = self.language.clone();
2604        let language_registry = self.language_registry.clone();
2605        let unstaged_diff = self.unstaged_diff();
2606        let uncommitted_diff = self.uncommitted_diff();
2607        let head = self.head_text.clone();
2608        let index = self.index_text.clone();
2609        let index_changed = self.index_changed;
2610        let head_changed = self.head_changed;
2611        let language_changed = self.language_changed;
2612        let prev_hunk_staging_operation_count = self.hunk_staging_operation_count_as_of_write;
2613        let index_matches_head = match (self.index_text.as_ref(), self.head_text.as_ref()) {
2614            (Some(index), Some(head)) => Arc::ptr_eq(index, head),
2615            (None, None) => true,
2616            _ => false,
2617        };
2618        self.recalculate_diff_task = Some(cx.spawn(async move |this, cx| {
2619            log::debug!(
2620                "start recalculating diffs for buffer {}",
2621                buffer.remote_id()
2622            );
2623
2624            let mut new_unstaged_diff = None;
2625            if let Some(unstaged_diff) = &unstaged_diff {
2626                new_unstaged_diff = Some(
2627                    BufferDiff::update_diff(
2628                        unstaged_diff.clone(),
2629                        buffer.clone(),
2630                        index,
2631                        index_changed,
2632                        language_changed,
2633                        language.clone(),
2634                        language_registry.clone(),
2635                        cx,
2636                    )
2637                    .await?,
2638                );
2639            }
2640
2641            let mut new_uncommitted_diff = None;
2642            if let Some(uncommitted_diff) = &uncommitted_diff {
2643                new_uncommitted_diff = if index_matches_head {
2644                    new_unstaged_diff.clone()
2645                } else {
2646                    Some(
2647                        BufferDiff::update_diff(
2648                            uncommitted_diff.clone(),
2649                            buffer.clone(),
2650                            head,
2651                            head_changed,
2652                            language_changed,
2653                            language.clone(),
2654                            language_registry.clone(),
2655                            cx,
2656                        )
2657                        .await?,
2658                    )
2659                }
2660            }
2661
2662            let cancel = this.update(cx, |this, _| {
2663                // This checks whether all pending stage/unstage operations
2664                // have quiesced (i.e. both the corresponding write and the
2665                // read of that write have completed). If not, then we cancel
2666                // this recalculation attempt to avoid invalidating pending
2667                // state too quickly; another recalculation will come along
2668                // later and clear the pending state once the state of the index has settled.
2669                if this.hunk_staging_operation_count > prev_hunk_staging_operation_count {
2670                    *this.recalculating_tx.borrow_mut() = false;
2671                    true
2672                } else {
2673                    false
2674                }
2675            })?;
2676            if cancel {
2677                log::debug!(
2678                    concat!(
2679                        "aborting recalculating diffs for buffer {}",
2680                        "due to subsequent hunk operations",
2681                    ),
2682                    buffer.remote_id()
2683                );
2684                return Ok(());
2685            }
2686
2687            let unstaged_changed_range = if let Some((unstaged_diff, new_unstaged_diff)) =
2688                unstaged_diff.as_ref().zip(new_unstaged_diff.clone())
2689            {
2690                unstaged_diff.update(cx, |diff, cx| {
2691                    if language_changed {
2692                        diff.language_changed(cx);
2693                    }
2694                    diff.set_snapshot(new_unstaged_diff, &buffer, cx)
2695                })?
2696            } else {
2697                None
2698            };
2699
2700            if let Some((uncommitted_diff, new_uncommitted_diff)) =
2701                uncommitted_diff.as_ref().zip(new_uncommitted_diff.clone())
2702            {
2703                uncommitted_diff.update(cx, |diff, cx| {
2704                    if language_changed {
2705                        diff.language_changed(cx);
2706                    }
2707                    diff.set_snapshot_with_secondary(
2708                        new_uncommitted_diff,
2709                        &buffer,
2710                        unstaged_changed_range,
2711                        true,
2712                        cx,
2713                    );
2714                })?;
2715            }
2716
2717            log::debug!(
2718                "finished recalculating diffs for buffer {}",
2719                buffer.remote_id()
2720            );
2721
2722            if let Some(this) = this.upgrade() {
2723                this.update(cx, |this, _| {
2724                    this.index_changed = false;
2725                    this.head_changed = false;
2726                    this.language_changed = false;
2727                    *this.recalculating_tx.borrow_mut() = false;
2728                })?;
2729            }
2730
2731            Ok(())
2732        }));
2733    }
2734}
2735
2736fn make_remote_delegate(
2737    this: Entity<GitStore>,
2738    project_id: u64,
2739    repository_id: RepositoryId,
2740    askpass_id: u64,
2741    cx: &mut AsyncApp,
2742) -> AskPassDelegate {
2743    AskPassDelegate::new(cx, move |prompt, tx, cx| {
2744        this.update(cx, |this, cx| {
2745            let Some((client, _)) = this.downstream_client() else {
2746                return;
2747            };
2748            let response = client.request(proto::AskPassRequest {
2749                project_id,
2750                repository_id: repository_id.to_proto(),
2751                askpass_id,
2752                prompt,
2753            });
2754            cx.spawn(async move |_, _| {
2755                let mut response = response.await?.response;
2756                tx.send(EncryptedPassword::try_from(response.as_ref())?)
2757                    .ok();
2758                response.zeroize();
2759                anyhow::Ok(())
2760            })
2761            .detach_and_log_err(cx);
2762        })
2763        .log_err();
2764    })
2765}
2766
2767impl RepositoryId {
2768    pub fn to_proto(self) -> u64 {
2769        self.0
2770    }
2771
2772    pub fn from_proto(id: u64) -> Self {
2773        RepositoryId(id)
2774    }
2775}
2776
2777impl RepositorySnapshot {
2778    fn empty(id: RepositoryId, work_directory_abs_path: Arc<Path>, path_style: PathStyle) -> Self {
2779        Self {
2780            id,
2781            statuses_by_path: Default::default(),
2782            work_directory_abs_path,
2783            branch: None,
2784            head_commit: None,
2785            scan_id: 0,
2786            merge: Default::default(),
2787            remote_origin_url: None,
2788            remote_upstream_url: None,
2789            stash_entries: Default::default(),
2790            path_style,
2791        }
2792    }
2793
2794    fn initial_update(&self, project_id: u64) -> proto::UpdateRepository {
2795        proto::UpdateRepository {
2796            branch_summary: self.branch.as_ref().map(branch_to_proto),
2797            head_commit_details: self.head_commit.as_ref().map(commit_details_to_proto),
2798            updated_statuses: self
2799                .statuses_by_path
2800                .iter()
2801                .map(|entry| entry.to_proto())
2802                .collect(),
2803            removed_statuses: Default::default(),
2804            current_merge_conflicts: self
2805                .merge
2806                .conflicted_paths
2807                .iter()
2808                .map(|repo_path| repo_path.to_proto())
2809                .collect(),
2810            merge_message: self.merge.message.as_ref().map(|msg| msg.to_string()),
2811            project_id,
2812            id: self.id.to_proto(),
2813            abs_path: self.work_directory_abs_path.to_string_lossy().into_owned(),
2814            entry_ids: vec![self.id.to_proto()],
2815            scan_id: self.scan_id,
2816            is_last_update: true,
2817            stash_entries: self
2818                .stash_entries
2819                .entries
2820                .iter()
2821                .map(stash_to_proto)
2822                .collect(),
2823        }
2824    }
2825
2826    fn build_update(&self, old: &Self, project_id: u64) -> proto::UpdateRepository {
2827        let mut updated_statuses: Vec<proto::StatusEntry> = Vec::new();
2828        let mut removed_statuses: Vec<String> = Vec::new();
2829
2830        let mut new_statuses = self.statuses_by_path.iter().peekable();
2831        let mut old_statuses = old.statuses_by_path.iter().peekable();
2832
2833        let mut current_new_entry = new_statuses.next();
2834        let mut current_old_entry = old_statuses.next();
2835        loop {
2836            match (current_new_entry, current_old_entry) {
2837                (Some(new_entry), Some(old_entry)) => {
2838                    match new_entry.repo_path.cmp(&old_entry.repo_path) {
2839                        Ordering::Less => {
2840                            updated_statuses.push(new_entry.to_proto());
2841                            current_new_entry = new_statuses.next();
2842                        }
2843                        Ordering::Equal => {
2844                            if new_entry.status != old_entry.status {
2845                                updated_statuses.push(new_entry.to_proto());
2846                            }
2847                            current_old_entry = old_statuses.next();
2848                            current_new_entry = new_statuses.next();
2849                        }
2850                        Ordering::Greater => {
2851                            removed_statuses.push(old_entry.repo_path.to_proto());
2852                            current_old_entry = old_statuses.next();
2853                        }
2854                    }
2855                }
2856                (None, Some(old_entry)) => {
2857                    removed_statuses.push(old_entry.repo_path.to_proto());
2858                    current_old_entry = old_statuses.next();
2859                }
2860                (Some(new_entry), None) => {
2861                    updated_statuses.push(new_entry.to_proto());
2862                    current_new_entry = new_statuses.next();
2863                }
2864                (None, None) => break,
2865            }
2866        }
2867
2868        proto::UpdateRepository {
2869            branch_summary: self.branch.as_ref().map(branch_to_proto),
2870            head_commit_details: self.head_commit.as_ref().map(commit_details_to_proto),
2871            updated_statuses,
2872            removed_statuses,
2873            current_merge_conflicts: self
2874                .merge
2875                .conflicted_paths
2876                .iter()
2877                .map(|path| path.to_proto())
2878                .collect(),
2879            merge_message: self.merge.message.as_ref().map(|msg| msg.to_string()),
2880            project_id,
2881            id: self.id.to_proto(),
2882            abs_path: self.work_directory_abs_path.to_string_lossy().into_owned(),
2883            entry_ids: vec![],
2884            scan_id: self.scan_id,
2885            is_last_update: true,
2886            stash_entries: self
2887                .stash_entries
2888                .entries
2889                .iter()
2890                .map(stash_to_proto)
2891                .collect(),
2892        }
2893    }
2894
2895    pub fn status(&self) -> impl Iterator<Item = StatusEntry> + '_ {
2896        self.statuses_by_path.iter().cloned()
2897    }
2898
2899    pub fn status_summary(&self) -> GitSummary {
2900        self.statuses_by_path.summary().item_summary
2901    }
2902
2903    pub fn status_for_path(&self, path: &RepoPath) -> Option<StatusEntry> {
2904        self.statuses_by_path
2905            .get(&PathKey(path.0.clone()), ())
2906            .cloned()
2907    }
2908
2909    pub fn abs_path_to_repo_path(&self, abs_path: &Path) -> Option<RepoPath> {
2910        Self::abs_path_to_repo_path_inner(&self.work_directory_abs_path, abs_path, self.path_style)
2911    }
2912
2913    #[inline]
2914    fn abs_path_to_repo_path_inner(
2915        work_directory_abs_path: &Path,
2916        abs_path: &Path,
2917        path_style: PathStyle,
2918    ) -> Option<RepoPath> {
2919        abs_path
2920            .strip_prefix(&work_directory_abs_path)
2921            .ok()
2922            .and_then(|path| RepoPath::from_std_path(path, path_style).ok())
2923    }
2924
2925    pub fn had_conflict_on_last_merge_head_change(&self, repo_path: &RepoPath) -> bool {
2926        self.merge.conflicted_paths.contains(repo_path)
2927    }
2928
2929    pub fn has_conflict(&self, repo_path: &RepoPath) -> bool {
2930        let had_conflict_on_last_merge_head_change =
2931            self.merge.conflicted_paths.contains(repo_path);
2932        let has_conflict_currently = self
2933            .status_for_path(repo_path)
2934            .is_some_and(|entry| entry.status.is_conflicted());
2935        had_conflict_on_last_merge_head_change || has_conflict_currently
2936    }
2937
2938    /// This is the name that will be displayed in the repository selector for this repository.
2939    pub fn display_name(&self) -> SharedString {
2940        self.work_directory_abs_path
2941            .file_name()
2942            .unwrap_or_default()
2943            .to_string_lossy()
2944            .to_string()
2945            .into()
2946    }
2947}
2948
2949pub fn stash_to_proto(entry: &StashEntry) -> proto::StashEntry {
2950    proto::StashEntry {
2951        oid: entry.oid.as_bytes().to_vec(),
2952        message: entry.message.clone(),
2953        branch: entry.branch.clone(),
2954        index: entry.index as u64,
2955        timestamp: entry.timestamp,
2956    }
2957}
2958
2959pub fn proto_to_stash(entry: &proto::StashEntry) -> Result<StashEntry> {
2960    Ok(StashEntry {
2961        oid: Oid::from_bytes(&entry.oid)?,
2962        message: entry.message.clone(),
2963        index: entry.index as usize,
2964        branch: entry.branch.clone(),
2965        timestamp: entry.timestamp,
2966    })
2967}
2968
2969impl MergeDetails {
2970    async fn load(
2971        backend: &Arc<dyn GitRepository>,
2972        status: &SumTree<StatusEntry>,
2973        prev_snapshot: &RepositorySnapshot,
2974    ) -> Result<(MergeDetails, bool)> {
2975        log::debug!("load merge details");
2976        let message = backend.merge_message().await;
2977        let heads = backend
2978            .revparse_batch(vec![
2979                "MERGE_HEAD".into(),
2980                "CHERRY_PICK_HEAD".into(),
2981                "REBASE_HEAD".into(),
2982                "REVERT_HEAD".into(),
2983                "APPLY_HEAD".into(),
2984            ])
2985            .await
2986            .log_err()
2987            .unwrap_or_default()
2988            .into_iter()
2989            .map(|opt| opt.map(SharedString::from))
2990            .collect::<Vec<_>>();
2991        let merge_heads_changed = heads != prev_snapshot.merge.heads;
2992        let conflicted_paths = if merge_heads_changed {
2993            let current_conflicted_paths = TreeSet::from_ordered_entries(
2994                status
2995                    .iter()
2996                    .filter(|entry| entry.status.is_conflicted())
2997                    .map(|entry| entry.repo_path.clone()),
2998            );
2999
3000            // It can happen that we run a scan while a lengthy merge is in progress
3001            // that will eventually result in conflicts, but before those conflicts
3002            // are reported by `git status`. Since for the moment we only care about
3003            // the merge heads state for the purposes of tracking conflicts, don't update
3004            // this state until we see some conflicts.
3005            if heads.iter().any(Option::is_some)
3006                && !prev_snapshot.merge.heads.iter().any(Option::is_some)
3007                && current_conflicted_paths.is_empty()
3008            {
3009                log::debug!("not updating merge heads because no conflicts found");
3010                return Ok((
3011                    MergeDetails {
3012                        message: message.map(SharedString::from),
3013                        ..prev_snapshot.merge.clone()
3014                    },
3015                    false,
3016                ));
3017            }
3018
3019            current_conflicted_paths
3020        } else {
3021            prev_snapshot.merge.conflicted_paths.clone()
3022        };
3023        let details = MergeDetails {
3024            conflicted_paths,
3025            message: message.map(SharedString::from),
3026            heads,
3027        };
3028        Ok((details, merge_heads_changed))
3029    }
3030}
3031
3032impl Repository {
3033    pub fn snapshot(&self) -> RepositorySnapshot {
3034        self.snapshot.clone()
3035    }
3036
3037    fn local(
3038        id: RepositoryId,
3039        work_directory_abs_path: Arc<Path>,
3040        dot_git_abs_path: Arc<Path>,
3041        repository_dir_abs_path: Arc<Path>,
3042        common_dir_abs_path: Arc<Path>,
3043        project_environment: WeakEntity<ProjectEnvironment>,
3044        fs: Arc<dyn Fs>,
3045        git_store: WeakEntity<GitStore>,
3046        cx: &mut Context<Self>,
3047    ) -> Self {
3048        let snapshot =
3049            RepositorySnapshot::empty(id, work_directory_abs_path.clone(), PathStyle::local());
3050        Repository {
3051            this: cx.weak_entity(),
3052            git_store,
3053            snapshot,
3054            commit_message_buffer: None,
3055            askpass_delegates: Default::default(),
3056            paths_needing_status_update: Default::default(),
3057            latest_askpass_id: 0,
3058            job_sender: Repository::spawn_local_git_worker(
3059                work_directory_abs_path,
3060                dot_git_abs_path,
3061                repository_dir_abs_path,
3062                common_dir_abs_path,
3063                project_environment,
3064                fs,
3065                cx,
3066            ),
3067            job_id: 0,
3068            active_jobs: Default::default(),
3069        }
3070    }
3071
3072    fn remote(
3073        id: RepositoryId,
3074        work_directory_abs_path: Arc<Path>,
3075        path_style: PathStyle,
3076        project_id: ProjectId,
3077        client: AnyProtoClient,
3078        git_store: WeakEntity<GitStore>,
3079        cx: &mut Context<Self>,
3080    ) -> Self {
3081        let snapshot = RepositorySnapshot::empty(id, work_directory_abs_path, path_style);
3082        Self {
3083            this: cx.weak_entity(),
3084            snapshot,
3085            commit_message_buffer: None,
3086            git_store,
3087            paths_needing_status_update: Default::default(),
3088            job_sender: Self::spawn_remote_git_worker(project_id, client, cx),
3089            askpass_delegates: Default::default(),
3090            latest_askpass_id: 0,
3091            active_jobs: Default::default(),
3092            job_id: 0,
3093        }
3094    }
3095
3096    pub fn git_store(&self) -> Option<Entity<GitStore>> {
3097        self.git_store.upgrade()
3098    }
3099
3100    fn reload_buffer_diff_bases(&mut self, cx: &mut Context<Self>) {
3101        let this = cx.weak_entity();
3102        let git_store = self.git_store.clone();
3103        let _ = self.send_keyed_job(
3104            Some(GitJobKey::ReloadBufferDiffBases),
3105            None,
3106            |state, mut cx| async move {
3107                let RepositoryState::Local { backend, .. } = state else {
3108                    log::error!("tried to recompute diffs for a non-local repository");
3109                    return Ok(());
3110                };
3111
3112                let Some(this) = this.upgrade() else {
3113                    return Ok(());
3114                };
3115
3116                let repo_diff_state_updates = this.update(&mut cx, |this, cx| {
3117                    git_store.update(cx, |git_store, cx| {
3118                        git_store
3119                            .diffs
3120                            .iter()
3121                            .filter_map(|(buffer_id, diff_state)| {
3122                                let buffer_store = git_store.buffer_store.read(cx);
3123                                let buffer = buffer_store.get(*buffer_id)?;
3124                                let file = File::from_dyn(buffer.read(cx).file())?;
3125                                let abs_path = file.worktree.read(cx).absolutize(&file.path);
3126                                let repo_path = this.abs_path_to_repo_path(&abs_path)?;
3127                                log::debug!(
3128                                    "start reload diff bases for repo path {}",
3129                                    repo_path.as_unix_str()
3130                                );
3131                                diff_state.update(cx, |diff_state, _| {
3132                                    let has_unstaged_diff = diff_state
3133                                        .unstaged_diff
3134                                        .as_ref()
3135                                        .is_some_and(|diff| diff.is_upgradable());
3136                                    let has_uncommitted_diff = diff_state
3137                                        .uncommitted_diff
3138                                        .as_ref()
3139                                        .is_some_and(|set| set.is_upgradable());
3140
3141                                    Some((
3142                                        buffer,
3143                                        repo_path,
3144                                        has_unstaged_diff.then(|| diff_state.index_text.clone()),
3145                                        has_uncommitted_diff.then(|| diff_state.head_text.clone()),
3146                                    ))
3147                                })
3148                            })
3149                            .collect::<Vec<_>>()
3150                    })
3151                })??;
3152
3153                let buffer_diff_base_changes = cx
3154                    .background_spawn(async move {
3155                        let mut changes = Vec::new();
3156                        for (buffer, repo_path, current_index_text, current_head_text) in
3157                            &repo_diff_state_updates
3158                        {
3159                            let index_text = if current_index_text.is_some() {
3160                                backend.load_index_text(repo_path.clone()).await
3161                            } else {
3162                                None
3163                            };
3164                            let head_text = if current_head_text.is_some() {
3165                                backend.load_committed_text(repo_path.clone()).await
3166                            } else {
3167                                None
3168                            };
3169
3170                            let change =
3171                                match (current_index_text.as_ref(), current_head_text.as_ref()) {
3172                                    (Some(current_index), Some(current_head)) => {
3173                                        let index_changed =
3174                                            index_text.as_ref() != current_index.as_deref();
3175                                        let head_changed =
3176                                            head_text.as_ref() != current_head.as_deref();
3177                                        if index_changed && head_changed {
3178                                            if index_text == head_text {
3179                                                Some(DiffBasesChange::SetBoth(head_text))
3180                                            } else {
3181                                                Some(DiffBasesChange::SetEach {
3182                                                    index: index_text,
3183                                                    head: head_text,
3184                                                })
3185                                            }
3186                                        } else if index_changed {
3187                                            Some(DiffBasesChange::SetIndex(index_text))
3188                                        } else if head_changed {
3189                                            Some(DiffBasesChange::SetHead(head_text))
3190                                        } else {
3191                                            None
3192                                        }
3193                                    }
3194                                    (Some(current_index), None) => {
3195                                        let index_changed =
3196                                            index_text.as_ref() != current_index.as_deref();
3197                                        index_changed
3198                                            .then_some(DiffBasesChange::SetIndex(index_text))
3199                                    }
3200                                    (None, Some(current_head)) => {
3201                                        let head_changed =
3202                                            head_text.as_ref() != current_head.as_deref();
3203                                        head_changed.then_some(DiffBasesChange::SetHead(head_text))
3204                                    }
3205                                    (None, None) => None,
3206                                };
3207
3208                            changes.push((buffer.clone(), change))
3209                        }
3210                        changes
3211                    })
3212                    .await;
3213
3214                git_store.update(&mut cx, |git_store, cx| {
3215                    for (buffer, diff_bases_change) in buffer_diff_base_changes {
3216                        let buffer_snapshot = buffer.read(cx).text_snapshot();
3217                        let buffer_id = buffer_snapshot.remote_id();
3218                        let Some(diff_state) = git_store.diffs.get(&buffer_id) else {
3219                            continue;
3220                        };
3221
3222                        let downstream_client = git_store.downstream_client();
3223                        diff_state.update(cx, |diff_state, cx| {
3224                            use proto::update_diff_bases::Mode;
3225
3226                            if let Some((diff_bases_change, (client, project_id))) =
3227                                diff_bases_change.clone().zip(downstream_client)
3228                            {
3229                                let (staged_text, committed_text, mode) = match diff_bases_change {
3230                                    DiffBasesChange::SetIndex(index) => {
3231                                        (index, None, Mode::IndexOnly)
3232                                    }
3233                                    DiffBasesChange::SetHead(head) => (None, head, Mode::HeadOnly),
3234                                    DiffBasesChange::SetEach { index, head } => {
3235                                        (index, head, Mode::IndexAndHead)
3236                                    }
3237                                    DiffBasesChange::SetBoth(text) => {
3238                                        (None, text, Mode::IndexMatchesHead)
3239                                    }
3240                                };
3241                                client
3242                                    .send(proto::UpdateDiffBases {
3243                                        project_id: project_id.to_proto(),
3244                                        buffer_id: buffer_id.to_proto(),
3245                                        staged_text,
3246                                        committed_text,
3247                                        mode: mode as i32,
3248                                    })
3249                                    .log_err();
3250                            }
3251
3252                            diff_state.diff_bases_changed(buffer_snapshot, diff_bases_change, cx);
3253                        });
3254                    }
3255                })
3256            },
3257        );
3258    }
3259
3260    pub fn send_job<F, Fut, R>(
3261        &mut self,
3262        status: Option<SharedString>,
3263        job: F,
3264    ) -> oneshot::Receiver<R>
3265    where
3266        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
3267        Fut: Future<Output = R> + 'static,
3268        R: Send + 'static,
3269    {
3270        self.send_keyed_job(None, status, job)
3271    }
3272
3273    fn send_keyed_job<F, Fut, R>(
3274        &mut self,
3275        key: Option<GitJobKey>,
3276        status: Option<SharedString>,
3277        job: F,
3278    ) -> oneshot::Receiver<R>
3279    where
3280        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
3281        Fut: Future<Output = R> + 'static,
3282        R: Send + 'static,
3283    {
3284        let (result_tx, result_rx) = futures::channel::oneshot::channel();
3285        let job_id = post_inc(&mut self.job_id);
3286        let this = self.this.clone();
3287        self.job_sender
3288            .unbounded_send(GitJob {
3289                key,
3290                job: Box::new(move |state, cx: &mut AsyncApp| {
3291                    let job = job(state, cx.clone());
3292                    cx.spawn(async move |cx| {
3293                        if let Some(s) = status.clone() {
3294                            this.update(cx, |this, cx| {
3295                                this.active_jobs.insert(
3296                                    job_id,
3297                                    JobInfo {
3298                                        start: Instant::now(),
3299                                        message: s.clone(),
3300                                    },
3301                                );
3302
3303                                cx.notify();
3304                            })
3305                            .ok();
3306                        }
3307                        let result = job.await;
3308
3309                        this.update(cx, |this, cx| {
3310                            this.active_jobs.remove(&job_id);
3311                            cx.notify();
3312                        })
3313                        .ok();
3314
3315                        result_tx.send(result).ok();
3316                    })
3317                }),
3318            })
3319            .ok();
3320        result_rx
3321    }
3322
3323    pub fn set_as_active_repository(&self, cx: &mut Context<Self>) {
3324        let Some(git_store) = self.git_store.upgrade() else {
3325            return;
3326        };
3327        let entity = cx.entity();
3328        git_store.update(cx, |git_store, cx| {
3329            let Some((&id, _)) = git_store
3330                .repositories
3331                .iter()
3332                .find(|(_, handle)| *handle == &entity)
3333            else {
3334                return;
3335            };
3336            git_store.active_repo_id = Some(id);
3337            cx.emit(GitStoreEvent::ActiveRepositoryChanged(Some(id)));
3338        });
3339    }
3340
3341    pub fn cached_status(&self) -> impl '_ + Iterator<Item = StatusEntry> {
3342        self.snapshot.status()
3343    }
3344
3345    pub fn cached_stash(&self) -> GitStash {
3346        self.snapshot.stash_entries.clone()
3347    }
3348
3349    pub fn repo_path_to_project_path(&self, path: &RepoPath, cx: &App) -> Option<ProjectPath> {
3350        let git_store = self.git_store.upgrade()?;
3351        let worktree_store = git_store.read(cx).worktree_store.read(cx);
3352        let abs_path = self
3353            .snapshot
3354            .work_directory_abs_path
3355            .join(path.as_std_path());
3356        let abs_path = SanitizedPath::new(&abs_path);
3357        let (worktree, relative_path) = worktree_store.find_worktree(abs_path, cx)?;
3358        Some(ProjectPath {
3359            worktree_id: worktree.read(cx).id(),
3360            path: relative_path,
3361        })
3362    }
3363
3364    pub fn project_path_to_repo_path(&self, path: &ProjectPath, cx: &App) -> Option<RepoPath> {
3365        let git_store = self.git_store.upgrade()?;
3366        let worktree_store = git_store.read(cx).worktree_store.read(cx);
3367        let abs_path = worktree_store.absolutize(path, cx)?;
3368        self.snapshot.abs_path_to_repo_path(&abs_path)
3369    }
3370
3371    pub fn contains_sub_repo(&self, other: &Entity<Self>, cx: &App) -> bool {
3372        other
3373            .read(cx)
3374            .snapshot
3375            .work_directory_abs_path
3376            .starts_with(&self.snapshot.work_directory_abs_path)
3377    }
3378
3379    pub fn open_commit_buffer(
3380        &mut self,
3381        languages: Option<Arc<LanguageRegistry>>,
3382        buffer_store: Entity<BufferStore>,
3383        cx: &mut Context<Self>,
3384    ) -> Task<Result<Entity<Buffer>>> {
3385        let id = self.id;
3386        if let Some(buffer) = self.commit_message_buffer.clone() {
3387            return Task::ready(Ok(buffer));
3388        }
3389        let this = cx.weak_entity();
3390
3391        let rx = self.send_job(None, move |state, mut cx| async move {
3392            let Some(this) = this.upgrade() else {
3393                bail!("git store was dropped");
3394            };
3395            match state {
3396                RepositoryState::Local { .. } => {
3397                    this.update(&mut cx, |_, cx| {
3398                        Self::open_local_commit_buffer(languages, buffer_store, cx)
3399                    })?
3400                    .await
3401                }
3402                RepositoryState::Remote { project_id, client } => {
3403                    let request = client.request(proto::OpenCommitMessageBuffer {
3404                        project_id: project_id.0,
3405                        repository_id: id.to_proto(),
3406                    });
3407                    let response = request.await.context("requesting to open commit buffer")?;
3408                    let buffer_id = BufferId::new(response.buffer_id)?;
3409                    let buffer = buffer_store
3410                        .update(&mut cx, |buffer_store, cx| {
3411                            buffer_store.wait_for_remote_buffer(buffer_id, cx)
3412                        })?
3413                        .await?;
3414                    if let Some(language_registry) = languages {
3415                        let git_commit_language =
3416                            language_registry.language_for_name("Git Commit").await?;
3417                        buffer.update(&mut cx, |buffer, cx| {
3418                            buffer.set_language(Some(git_commit_language), cx);
3419                        })?;
3420                    }
3421                    this.update(&mut cx, |this, _| {
3422                        this.commit_message_buffer = Some(buffer.clone());
3423                    })?;
3424                    Ok(buffer)
3425                }
3426            }
3427        });
3428
3429        cx.spawn(|_, _: &mut AsyncApp| async move { rx.await? })
3430    }
3431
3432    fn open_local_commit_buffer(
3433        language_registry: Option<Arc<LanguageRegistry>>,
3434        buffer_store: Entity<BufferStore>,
3435        cx: &mut Context<Self>,
3436    ) -> Task<Result<Entity<Buffer>>> {
3437        cx.spawn(async move |repository, cx| {
3438            let buffer = buffer_store
3439                .update(cx, |buffer_store, cx| buffer_store.create_buffer(false, cx))?
3440                .await?;
3441
3442            if let Some(language_registry) = language_registry {
3443                let git_commit_language = language_registry.language_for_name("Git Commit").await?;
3444                buffer.update(cx, |buffer, cx| {
3445                    buffer.set_language(Some(git_commit_language), cx);
3446                })?;
3447            }
3448
3449            repository.update(cx, |repository, _| {
3450                repository.commit_message_buffer = Some(buffer.clone());
3451            })?;
3452            Ok(buffer)
3453        })
3454    }
3455
3456    pub fn checkout_files(
3457        &mut self,
3458        commit: &str,
3459        paths: Vec<RepoPath>,
3460        _cx: &mut App,
3461    ) -> oneshot::Receiver<Result<()>> {
3462        let commit = commit.to_string();
3463        let id = self.id;
3464
3465        self.send_job(
3466            Some(format!("git checkout {}", commit).into()),
3467            move |git_repo, _| async move {
3468                match git_repo {
3469                    RepositoryState::Local {
3470                        backend,
3471                        environment,
3472                        ..
3473                    } => {
3474                        backend
3475                            .checkout_files(commit, paths, environment.clone())
3476                            .await
3477                    }
3478                    RepositoryState::Remote { project_id, client } => {
3479                        client
3480                            .request(proto::GitCheckoutFiles {
3481                                project_id: project_id.0,
3482                                repository_id: id.to_proto(),
3483                                commit,
3484                                paths: paths.into_iter().map(|p| p.to_proto()).collect(),
3485                            })
3486                            .await?;
3487
3488                        Ok(())
3489                    }
3490                }
3491            },
3492        )
3493    }
3494
3495    pub fn reset(
3496        &mut self,
3497        commit: String,
3498        reset_mode: ResetMode,
3499        _cx: &mut App,
3500    ) -> oneshot::Receiver<Result<()>> {
3501        let id = self.id;
3502
3503        self.send_job(None, move |git_repo, _| async move {
3504            match git_repo {
3505                RepositoryState::Local {
3506                    backend,
3507                    environment,
3508                    ..
3509                } => backend.reset(commit, reset_mode, environment).await,
3510                RepositoryState::Remote { project_id, client } => {
3511                    client
3512                        .request(proto::GitReset {
3513                            project_id: project_id.0,
3514                            repository_id: id.to_proto(),
3515                            commit,
3516                            mode: match reset_mode {
3517                                ResetMode::Soft => git_reset::ResetMode::Soft.into(),
3518                                ResetMode::Mixed => git_reset::ResetMode::Mixed.into(),
3519                            },
3520                        })
3521                        .await?;
3522
3523                    Ok(())
3524                }
3525            }
3526        })
3527    }
3528
3529    pub fn show(&mut self, commit: String) -> oneshot::Receiver<Result<CommitDetails>> {
3530        let id = self.id;
3531        self.send_job(None, move |git_repo, _cx| async move {
3532            match git_repo {
3533                RepositoryState::Local { backend, .. } => backend.show(commit).await,
3534                RepositoryState::Remote { project_id, client } => {
3535                    let resp = client
3536                        .request(proto::GitShow {
3537                            project_id: project_id.0,
3538                            repository_id: id.to_proto(),
3539                            commit,
3540                        })
3541                        .await?;
3542
3543                    Ok(CommitDetails {
3544                        sha: resp.sha.into(),
3545                        message: resp.message.into(),
3546                        commit_timestamp: resp.commit_timestamp,
3547                        author_email: resp.author_email.into(),
3548                        author_name: resp.author_name.into(),
3549                    })
3550                }
3551            }
3552        })
3553    }
3554
3555    pub fn load_commit_diff(&mut self, commit: String) -> oneshot::Receiver<Result<CommitDiff>> {
3556        let id = self.id;
3557        self.send_job(None, move |git_repo, cx| async move {
3558            match git_repo {
3559                RepositoryState::Local { backend, .. } => backend.load_commit(commit, cx).await,
3560                RepositoryState::Remote {
3561                    client, project_id, ..
3562                } => {
3563                    let response = client
3564                        .request(proto::LoadCommitDiff {
3565                            project_id: project_id.0,
3566                            repository_id: id.to_proto(),
3567                            commit,
3568                        })
3569                        .await?;
3570                    Ok(CommitDiff {
3571                        files: response
3572                            .files
3573                            .into_iter()
3574                            .map(|file| {
3575                                Ok(CommitFile {
3576                                    path: RepoPath::from_proto(&file.path)?,
3577                                    old_text: file.old_text,
3578                                    new_text: file.new_text,
3579                                })
3580                            })
3581                            .collect::<Result<Vec<_>>>()?,
3582                    })
3583                }
3584            }
3585        })
3586    }
3587
3588    fn buffer_store(&self, cx: &App) -> Option<Entity<BufferStore>> {
3589        Some(self.git_store.upgrade()?.read(cx).buffer_store.clone())
3590    }
3591
3592    pub fn stage_entries(
3593        &self,
3594        entries: Vec<RepoPath>,
3595        cx: &mut Context<Self>,
3596    ) -> Task<anyhow::Result<()>> {
3597        if entries.is_empty() {
3598            return Task::ready(Ok(()));
3599        }
3600        let id = self.id;
3601
3602        let mut save_futures = Vec::new();
3603        if let Some(buffer_store) = self.buffer_store(cx) {
3604            buffer_store.update(cx, |buffer_store, cx| {
3605                for path in &entries {
3606                    let Some(project_path) = self.repo_path_to_project_path(path, cx) else {
3607                        continue;
3608                    };
3609                    if let Some(buffer) = buffer_store.get_by_path(&project_path)
3610                        && buffer
3611                            .read(cx)
3612                            .file()
3613                            .is_some_and(|file| file.disk_state().exists())
3614                    {
3615                        save_futures.push(buffer_store.save_buffer(buffer, cx));
3616                    }
3617                }
3618            })
3619        }
3620
3621        cx.spawn(async move |this, cx| {
3622            for save_future in save_futures {
3623                save_future.await?;
3624            }
3625
3626            this.update(cx, |this, _| {
3627                this.send_job(None, move |git_repo, _cx| async move {
3628                    match git_repo {
3629                        RepositoryState::Local {
3630                            backend,
3631                            environment,
3632                            ..
3633                        } => backend.stage_paths(entries, environment.clone()).await,
3634                        RepositoryState::Remote { project_id, client } => {
3635                            client
3636                                .request(proto::Stage {
3637                                    project_id: project_id.0,
3638                                    repository_id: id.to_proto(),
3639                                    paths: entries
3640                                        .into_iter()
3641                                        .map(|repo_path| repo_path.to_proto())
3642                                        .collect(),
3643                                })
3644                                .await
3645                                .context("sending stage request")?;
3646
3647                            Ok(())
3648                        }
3649                    }
3650                })
3651            })?
3652            .await??;
3653
3654            Ok(())
3655        })
3656    }
3657
3658    pub fn unstage_entries(
3659        &self,
3660        entries: Vec<RepoPath>,
3661        cx: &mut Context<Self>,
3662    ) -> Task<anyhow::Result<()>> {
3663        if entries.is_empty() {
3664            return Task::ready(Ok(()));
3665        }
3666        let id = self.id;
3667
3668        let mut save_futures = Vec::new();
3669        if let Some(buffer_store) = self.buffer_store(cx) {
3670            buffer_store.update(cx, |buffer_store, cx| {
3671                for path in &entries {
3672                    let Some(project_path) = self.repo_path_to_project_path(path, cx) else {
3673                        continue;
3674                    };
3675                    if let Some(buffer) = buffer_store.get_by_path(&project_path)
3676                        && buffer
3677                            .read(cx)
3678                            .file()
3679                            .is_some_and(|file| file.disk_state().exists())
3680                    {
3681                        save_futures.push(buffer_store.save_buffer(buffer, cx));
3682                    }
3683                }
3684            })
3685        }
3686
3687        cx.spawn(async move |this, cx| {
3688            for save_future in save_futures {
3689                save_future.await?;
3690            }
3691
3692            this.update(cx, |this, _| {
3693                this.send_job(None, move |git_repo, _cx| async move {
3694                    match git_repo {
3695                        RepositoryState::Local {
3696                            backend,
3697                            environment,
3698                            ..
3699                        } => backend.unstage_paths(entries, environment).await,
3700                        RepositoryState::Remote { project_id, client } => {
3701                            client
3702                                .request(proto::Unstage {
3703                                    project_id: project_id.0,
3704                                    repository_id: id.to_proto(),
3705                                    paths: entries
3706                                        .into_iter()
3707                                        .map(|repo_path| repo_path.to_proto())
3708                                        .collect(),
3709                                })
3710                                .await
3711                                .context("sending unstage request")?;
3712
3713                            Ok(())
3714                        }
3715                    }
3716                })
3717            })?
3718            .await??;
3719
3720            Ok(())
3721        })
3722    }
3723
3724    pub fn stage_all(&self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
3725        let to_stage = self
3726            .cached_status()
3727            .filter(|entry| !entry.status.staging().is_fully_staged())
3728            .map(|entry| entry.repo_path)
3729            .collect();
3730        self.stage_entries(to_stage, cx)
3731    }
3732
3733    pub fn unstage_all(&self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
3734        let to_unstage = self
3735            .cached_status()
3736            .filter(|entry| entry.status.staging().has_staged())
3737            .map(|entry| entry.repo_path)
3738            .collect();
3739        self.unstage_entries(to_unstage, cx)
3740    }
3741
3742    pub fn stash_all(&mut self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
3743        let to_stash = self.cached_status().map(|entry| entry.repo_path).collect();
3744
3745        self.stash_entries(to_stash, cx)
3746    }
3747
3748    pub fn stash_entries(
3749        &mut self,
3750        entries: Vec<RepoPath>,
3751        cx: &mut Context<Self>,
3752    ) -> Task<anyhow::Result<()>> {
3753        let id = self.id;
3754
3755        cx.spawn(async move |this, cx| {
3756            this.update(cx, |this, _| {
3757                this.send_job(None, move |git_repo, _cx| async move {
3758                    match git_repo {
3759                        RepositoryState::Local {
3760                            backend,
3761                            environment,
3762                            ..
3763                        } => backend.stash_paths(entries, environment).await,
3764                        RepositoryState::Remote { project_id, client } => {
3765                            client
3766                                .request(proto::Stash {
3767                                    project_id: project_id.0,
3768                                    repository_id: id.to_proto(),
3769                                    paths: entries
3770                                        .into_iter()
3771                                        .map(|repo_path| repo_path.to_proto())
3772                                        .collect(),
3773                                })
3774                                .await
3775                                .context("sending stash request")?;
3776                            Ok(())
3777                        }
3778                    }
3779                })
3780            })?
3781            .await??;
3782            Ok(())
3783        })
3784    }
3785
3786    pub fn stash_pop(
3787        &mut self,
3788        index: Option<usize>,
3789        cx: &mut Context<Self>,
3790    ) -> Task<anyhow::Result<()>> {
3791        let id = self.id;
3792        cx.spawn(async move |this, cx| {
3793            this.update(cx, |this, _| {
3794                this.send_job(None, move |git_repo, _cx| async move {
3795                    match git_repo {
3796                        RepositoryState::Local {
3797                            backend,
3798                            environment,
3799                            ..
3800                        } => backend.stash_pop(index, environment).await,
3801                        RepositoryState::Remote { project_id, client } => {
3802                            client
3803                                .request(proto::StashPop {
3804                                    project_id: project_id.0,
3805                                    repository_id: id.to_proto(),
3806                                    stash_index: index.map(|i| i as u64),
3807                                })
3808                                .await
3809                                .context("sending stash pop request")?;
3810                            Ok(())
3811                        }
3812                    }
3813                })
3814            })?
3815            .await??;
3816            Ok(())
3817        })
3818    }
3819
3820    pub fn stash_apply(
3821        &mut self,
3822        index: Option<usize>,
3823        cx: &mut Context<Self>,
3824    ) -> Task<anyhow::Result<()>> {
3825        let id = self.id;
3826        cx.spawn(async move |this, cx| {
3827            this.update(cx, |this, _| {
3828                this.send_job(None, move |git_repo, _cx| async move {
3829                    match git_repo {
3830                        RepositoryState::Local {
3831                            backend,
3832                            environment,
3833                            ..
3834                        } => backend.stash_apply(index, environment).await,
3835                        RepositoryState::Remote { project_id, client } => {
3836                            client
3837                                .request(proto::StashApply {
3838                                    project_id: project_id.0,
3839                                    repository_id: id.to_proto(),
3840                                    stash_index: index.map(|i| i as u64),
3841                                })
3842                                .await
3843                                .context("sending stash apply request")?;
3844                            Ok(())
3845                        }
3846                    }
3847                })
3848            })?
3849            .await??;
3850            Ok(())
3851        })
3852    }
3853
3854    pub fn stash_drop(
3855        &mut self,
3856        index: Option<usize>,
3857        cx: &mut Context<Self>,
3858    ) -> oneshot::Receiver<anyhow::Result<()>> {
3859        let id = self.id;
3860        let updates_tx = self
3861            .git_store()
3862            .and_then(|git_store| match &git_store.read(cx).state {
3863                GitStoreState::Local { downstream, .. } => downstream
3864                    .as_ref()
3865                    .map(|downstream| downstream.updates_tx.clone()),
3866                _ => None,
3867            });
3868        let this = cx.weak_entity();
3869        self.send_job(None, move |git_repo, mut cx| async move {
3870            match git_repo {
3871                RepositoryState::Local {
3872                    backend,
3873                    environment,
3874                    ..
3875                } => {
3876                    let result = backend.stash_drop(index, environment).await;
3877                    if result.is_ok()
3878                        && let Ok(stash_entries) = backend.stash_entries().await
3879                    {
3880                        let snapshot = this.update(&mut cx, |this, cx| {
3881                            this.snapshot.stash_entries = stash_entries;
3882                            let snapshot = this.snapshot.clone();
3883                            cx.emit(RepositoryEvent::Updated {
3884                                full_scan: false,
3885                                new_instance: false,
3886                            });
3887                            snapshot
3888                        })?;
3889                        if let Some(updates_tx) = updates_tx {
3890                            updates_tx
3891                                .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
3892                                .ok();
3893                        }
3894                    }
3895
3896                    result
3897                }
3898                RepositoryState::Remote { project_id, client } => {
3899                    client
3900                        .request(proto::StashDrop {
3901                            project_id: project_id.0,
3902                            repository_id: id.to_proto(),
3903                            stash_index: index.map(|i| i as u64),
3904                        })
3905                        .await
3906                        .context("sending stash pop request")?;
3907                    Ok(())
3908                }
3909            }
3910        })
3911    }
3912
3913    pub fn commit(
3914        &mut self,
3915        message: SharedString,
3916        name_and_email: Option<(SharedString, SharedString)>,
3917        options: CommitOptions,
3918        _cx: &mut App,
3919    ) -> oneshot::Receiver<Result<()>> {
3920        let id = self.id;
3921
3922        self.send_job(Some("git commit".into()), move |git_repo, _cx| async move {
3923            match git_repo {
3924                RepositoryState::Local {
3925                    backend,
3926                    environment,
3927                    ..
3928                } => {
3929                    backend
3930                        .commit(message, name_and_email, options, environment)
3931                        .await
3932                }
3933                RepositoryState::Remote { project_id, client } => {
3934                    let (name, email) = name_and_email.unzip();
3935                    client
3936                        .request(proto::Commit {
3937                            project_id: project_id.0,
3938                            repository_id: id.to_proto(),
3939                            message: String::from(message),
3940                            name: name.map(String::from),
3941                            email: email.map(String::from),
3942                            options: Some(proto::commit::CommitOptions {
3943                                amend: options.amend,
3944                                signoff: options.signoff,
3945                            }),
3946                        })
3947                        .await
3948                        .context("sending commit request")?;
3949
3950                    Ok(())
3951                }
3952            }
3953        })
3954    }
3955
3956    pub fn fetch(
3957        &mut self,
3958        fetch_options: FetchOptions,
3959        askpass: AskPassDelegate,
3960        _cx: &mut App,
3961    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
3962        let askpass_delegates = self.askpass_delegates.clone();
3963        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
3964        let id = self.id;
3965
3966        self.send_job(Some("git fetch".into()), move |git_repo, cx| async move {
3967            match git_repo {
3968                RepositoryState::Local {
3969                    backend,
3970                    environment,
3971                    ..
3972                } => backend.fetch(fetch_options, askpass, environment, cx).await,
3973                RepositoryState::Remote { project_id, client } => {
3974                    askpass_delegates.lock().insert(askpass_id, askpass);
3975                    let _defer = util::defer(|| {
3976                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
3977                        debug_assert!(askpass_delegate.is_some());
3978                    });
3979
3980                    let response = client
3981                        .request(proto::Fetch {
3982                            project_id: project_id.0,
3983                            repository_id: id.to_proto(),
3984                            askpass_id,
3985                            remote: fetch_options.to_proto(),
3986                        })
3987                        .await
3988                        .context("sending fetch request")?;
3989
3990                    Ok(RemoteCommandOutput {
3991                        stdout: response.stdout,
3992                        stderr: response.stderr,
3993                    })
3994                }
3995            }
3996        })
3997    }
3998
3999    pub fn push(
4000        &mut self,
4001        branch: SharedString,
4002        remote: SharedString,
4003        options: Option<PushOptions>,
4004        askpass: AskPassDelegate,
4005        cx: &mut Context<Self>,
4006    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
4007        let askpass_delegates = self.askpass_delegates.clone();
4008        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
4009        let id = self.id;
4010
4011        let args = options
4012            .map(|option| match option {
4013                PushOptions::SetUpstream => " --set-upstream",
4014                PushOptions::Force => " --force-with-lease",
4015            })
4016            .unwrap_or("");
4017
4018        let updates_tx = self
4019            .git_store()
4020            .and_then(|git_store| match &git_store.read(cx).state {
4021                GitStoreState::Local { downstream, .. } => downstream
4022                    .as_ref()
4023                    .map(|downstream| downstream.updates_tx.clone()),
4024                _ => None,
4025            });
4026
4027        let this = cx.weak_entity();
4028        self.send_job(
4029            Some(format!("git push {} {} {}", args, branch, remote).into()),
4030            move |git_repo, mut cx| async move {
4031                match git_repo {
4032                    RepositoryState::Local {
4033                        backend,
4034                        environment,
4035                        ..
4036                    } => {
4037                        let result = backend
4038                            .push(
4039                                branch.to_string(),
4040                                remote.to_string(),
4041                                options,
4042                                askpass,
4043                                environment.clone(),
4044                                cx.clone(),
4045                            )
4046                            .await;
4047                        if result.is_ok() {
4048                            let branches = backend.branches().await?;
4049                            let branch = branches.into_iter().find(|branch| branch.is_head);
4050                            log::info!("head branch after scan is {branch:?}");
4051                            let snapshot = this.update(&mut cx, |this, cx| {
4052                                this.snapshot.branch = branch;
4053                                let snapshot = this.snapshot.clone();
4054                                cx.emit(RepositoryEvent::Updated {
4055                                    full_scan: false,
4056                                    new_instance: false,
4057                                });
4058                                snapshot
4059                            })?;
4060                            if let Some(updates_tx) = updates_tx {
4061                                updates_tx
4062                                    .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
4063                                    .ok();
4064                            }
4065                        }
4066                        result
4067                    }
4068                    RepositoryState::Remote { project_id, client } => {
4069                        askpass_delegates.lock().insert(askpass_id, askpass);
4070                        let _defer = util::defer(|| {
4071                            let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
4072                            debug_assert!(askpass_delegate.is_some());
4073                        });
4074                        let response = client
4075                            .request(proto::Push {
4076                                project_id: project_id.0,
4077                                repository_id: id.to_proto(),
4078                                askpass_id,
4079                                branch_name: branch.to_string(),
4080                                remote_name: remote.to_string(),
4081                                options: options.map(|options| match options {
4082                                    PushOptions::Force => proto::push::PushOptions::Force,
4083                                    PushOptions::SetUpstream => {
4084                                        proto::push::PushOptions::SetUpstream
4085                                    }
4086                                }
4087                                    as i32),
4088                            })
4089                            .await
4090                            .context("sending push request")?;
4091
4092                        Ok(RemoteCommandOutput {
4093                            stdout: response.stdout,
4094                            stderr: response.stderr,
4095                        })
4096                    }
4097                }
4098            },
4099        )
4100    }
4101
4102    pub fn pull(
4103        &mut self,
4104        branch: SharedString,
4105        remote: SharedString,
4106        askpass: AskPassDelegate,
4107        _cx: &mut App,
4108    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
4109        let askpass_delegates = self.askpass_delegates.clone();
4110        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
4111        let id = self.id;
4112
4113        self.send_job(
4114            Some(format!("git pull {} {}", remote, branch).into()),
4115            move |git_repo, cx| async move {
4116                match git_repo {
4117                    RepositoryState::Local {
4118                        backend,
4119                        environment,
4120                        ..
4121                    } => {
4122                        backend
4123                            .pull(
4124                                branch.to_string(),
4125                                remote.to_string(),
4126                                askpass,
4127                                environment.clone(),
4128                                cx,
4129                            )
4130                            .await
4131                    }
4132                    RepositoryState::Remote { project_id, client } => {
4133                        askpass_delegates.lock().insert(askpass_id, askpass);
4134                        let _defer = util::defer(|| {
4135                            let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
4136                            debug_assert!(askpass_delegate.is_some());
4137                        });
4138                        let response = client
4139                            .request(proto::Pull {
4140                                project_id: project_id.0,
4141                                repository_id: id.to_proto(),
4142                                askpass_id,
4143                                branch_name: branch.to_string(),
4144                                remote_name: remote.to_string(),
4145                            })
4146                            .await
4147                            .context("sending pull request")?;
4148
4149                        Ok(RemoteCommandOutput {
4150                            stdout: response.stdout,
4151                            stderr: response.stderr,
4152                        })
4153                    }
4154                }
4155            },
4156        )
4157    }
4158
4159    fn spawn_set_index_text_job(
4160        &mut self,
4161        path: RepoPath,
4162        content: Option<String>,
4163        hunk_staging_operation_count: Option<usize>,
4164        cx: &mut Context<Self>,
4165    ) -> oneshot::Receiver<anyhow::Result<()>> {
4166        let id = self.id;
4167        let this = cx.weak_entity();
4168        let git_store = self.git_store.clone();
4169        self.send_keyed_job(
4170            Some(GitJobKey::WriteIndex(path.clone())),
4171            None,
4172            move |git_repo, mut cx| async move {
4173                log::debug!(
4174                    "start updating index text for buffer {}",
4175                    path.as_unix_str()
4176                );
4177                match git_repo {
4178                    RepositoryState::Local {
4179                        backend,
4180                        environment,
4181                        ..
4182                    } => {
4183                        backend
4184                            .set_index_text(path.clone(), content, environment.clone())
4185                            .await?;
4186                    }
4187                    RepositoryState::Remote { project_id, client } => {
4188                        client
4189                            .request(proto::SetIndexText {
4190                                project_id: project_id.0,
4191                                repository_id: id.to_proto(),
4192                                path: path.to_proto(),
4193                                text: content,
4194                            })
4195                            .await?;
4196                    }
4197                }
4198                log::debug!(
4199                    "finish updating index text for buffer {}",
4200                    path.as_unix_str()
4201                );
4202
4203                if let Some(hunk_staging_operation_count) = hunk_staging_operation_count {
4204                    let project_path = this
4205                        .read_with(&cx, |this, cx| this.repo_path_to_project_path(&path, cx))
4206                        .ok()
4207                        .flatten();
4208                    git_store.update(&mut cx, |git_store, cx| {
4209                        let buffer_id = git_store
4210                            .buffer_store
4211                            .read(cx)
4212                            .get_by_path(&project_path?)?
4213                            .read(cx)
4214                            .remote_id();
4215                        let diff_state = git_store.diffs.get(&buffer_id)?;
4216                        diff_state.update(cx, |diff_state, _| {
4217                            diff_state.hunk_staging_operation_count_as_of_write =
4218                                hunk_staging_operation_count;
4219                        });
4220                        Some(())
4221                    })?;
4222                }
4223                Ok(())
4224            },
4225        )
4226    }
4227
4228    pub fn get_remotes(
4229        &mut self,
4230        branch_name: Option<String>,
4231    ) -> oneshot::Receiver<Result<Vec<Remote>>> {
4232        let id = self.id;
4233        self.send_job(None, move |repo, _cx| async move {
4234            match repo {
4235                RepositoryState::Local { backend, .. } => backend.get_remotes(branch_name).await,
4236                RepositoryState::Remote { project_id, client } => {
4237                    let response = client
4238                        .request(proto::GetRemotes {
4239                            project_id: project_id.0,
4240                            repository_id: id.to_proto(),
4241                            branch_name,
4242                        })
4243                        .await?;
4244
4245                    let remotes = response
4246                        .remotes
4247                        .into_iter()
4248                        .map(|remotes| git::repository::Remote {
4249                            name: remotes.name.into(),
4250                        })
4251                        .collect();
4252
4253                    Ok(remotes)
4254                }
4255            }
4256        })
4257    }
4258
4259    pub fn branches(&mut self) -> oneshot::Receiver<Result<Vec<Branch>>> {
4260        let id = self.id;
4261        self.send_job(None, move |repo, _| async move {
4262            match repo {
4263                RepositoryState::Local { backend, .. } => backend.branches().await,
4264                RepositoryState::Remote { project_id, client } => {
4265                    let response = client
4266                        .request(proto::GitGetBranches {
4267                            project_id: project_id.0,
4268                            repository_id: id.to_proto(),
4269                        })
4270                        .await?;
4271
4272                    let branches = response
4273                        .branches
4274                        .into_iter()
4275                        .map(|branch| proto_to_branch(&branch))
4276                        .collect();
4277
4278                    Ok(branches)
4279                }
4280            }
4281        })
4282    }
4283
4284    pub fn default_branch(&mut self) -> oneshot::Receiver<Result<Option<SharedString>>> {
4285        let id = self.id;
4286        self.send_job(None, move |repo, _| async move {
4287            match repo {
4288                RepositoryState::Local { backend, .. } => backend.default_branch().await,
4289                RepositoryState::Remote { project_id, client } => {
4290                    let response = client
4291                        .request(proto::GetDefaultBranch {
4292                            project_id: project_id.0,
4293                            repository_id: id.to_proto(),
4294                        })
4295                        .await?;
4296
4297                    anyhow::Ok(response.branch.map(SharedString::from))
4298                }
4299            }
4300        })
4301    }
4302
4303    pub fn diff(&mut self, diff_type: DiffType, _cx: &App) -> oneshot::Receiver<Result<String>> {
4304        let id = self.id;
4305        self.send_job(None, move |repo, _cx| async move {
4306            match repo {
4307                RepositoryState::Local { backend, .. } => backend.diff(diff_type).await,
4308                RepositoryState::Remote { project_id, client } => {
4309                    let response = client
4310                        .request(proto::GitDiff {
4311                            project_id: project_id.0,
4312                            repository_id: id.to_proto(),
4313                            diff_type: match diff_type {
4314                                DiffType::HeadToIndex => {
4315                                    proto::git_diff::DiffType::HeadToIndex.into()
4316                                }
4317                                DiffType::HeadToWorktree => {
4318                                    proto::git_diff::DiffType::HeadToWorktree.into()
4319                                }
4320                            },
4321                        })
4322                        .await?;
4323
4324                    Ok(response.diff)
4325                }
4326            }
4327        })
4328    }
4329
4330    pub fn create_branch(&mut self, branch_name: String) -> oneshot::Receiver<Result<()>> {
4331        let id = self.id;
4332        self.send_job(
4333            Some(format!("git switch -c {branch_name}").into()),
4334            move |repo, _cx| async move {
4335                match repo {
4336                    RepositoryState::Local { backend, .. } => {
4337                        backend.create_branch(branch_name).await
4338                    }
4339                    RepositoryState::Remote { project_id, client } => {
4340                        client
4341                            .request(proto::GitCreateBranch {
4342                                project_id: project_id.0,
4343                                repository_id: id.to_proto(),
4344                                branch_name,
4345                            })
4346                            .await?;
4347
4348                        Ok(())
4349                    }
4350                }
4351            },
4352        )
4353    }
4354
4355    pub fn change_branch(&mut self, branch_name: String) -> oneshot::Receiver<Result<()>> {
4356        let id = self.id;
4357        self.send_job(
4358            Some(format!("git switch {branch_name}").into()),
4359            move |repo, _cx| async move {
4360                match repo {
4361                    RepositoryState::Local { backend, .. } => {
4362                        backend.change_branch(branch_name).await
4363                    }
4364                    RepositoryState::Remote { project_id, client } => {
4365                        client
4366                            .request(proto::GitChangeBranch {
4367                                project_id: project_id.0,
4368                                repository_id: id.to_proto(),
4369                                branch_name,
4370                            })
4371                            .await?;
4372
4373                        Ok(())
4374                    }
4375                }
4376            },
4377        )
4378    }
4379
4380    pub fn rename_branch(
4381        &mut self,
4382        branch: String,
4383        new_name: String,
4384    ) -> oneshot::Receiver<Result<()>> {
4385        let id = self.id;
4386        self.send_job(
4387            Some(format!("git branch -m {branch} {new_name}").into()),
4388            move |repo, _cx| async move {
4389                match repo {
4390                    RepositoryState::Local { backend, .. } => {
4391                        backend.rename_branch(branch, new_name).await
4392                    }
4393                    RepositoryState::Remote { project_id, client } => {
4394                        client
4395                            .request(proto::GitRenameBranch {
4396                                project_id: project_id.0,
4397                                repository_id: id.to_proto(),
4398                                branch,
4399                                new_name,
4400                            })
4401                            .await?;
4402
4403                        Ok(())
4404                    }
4405                }
4406            },
4407        )
4408    }
4409
4410    pub fn check_for_pushed_commits(&mut self) -> oneshot::Receiver<Result<Vec<SharedString>>> {
4411        let id = self.id;
4412        self.send_job(None, move |repo, _cx| async move {
4413            match repo {
4414                RepositoryState::Local { backend, .. } => backend.check_for_pushed_commit().await,
4415                RepositoryState::Remote { project_id, client } => {
4416                    let response = client
4417                        .request(proto::CheckForPushedCommits {
4418                            project_id: project_id.0,
4419                            repository_id: id.to_proto(),
4420                        })
4421                        .await?;
4422
4423                    let branches = response.pushed_to.into_iter().map(Into::into).collect();
4424
4425                    Ok(branches)
4426                }
4427            }
4428        })
4429    }
4430
4431    pub fn checkpoint(&mut self) -> oneshot::Receiver<Result<GitRepositoryCheckpoint>> {
4432        self.send_job(None, |repo, _cx| async move {
4433            match repo {
4434                RepositoryState::Local { backend, .. } => backend.checkpoint().await,
4435                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
4436            }
4437        })
4438    }
4439
4440    pub fn restore_checkpoint(
4441        &mut self,
4442        checkpoint: GitRepositoryCheckpoint,
4443    ) -> oneshot::Receiver<Result<()>> {
4444        self.send_job(None, move |repo, _cx| async move {
4445            match repo {
4446                RepositoryState::Local { backend, .. } => {
4447                    backend.restore_checkpoint(checkpoint).await
4448                }
4449                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
4450            }
4451        })
4452    }
4453
4454    pub(crate) fn apply_remote_update(
4455        &mut self,
4456        update: proto::UpdateRepository,
4457        is_new: bool,
4458        cx: &mut Context<Self>,
4459    ) -> Result<()> {
4460        let conflicted_paths = TreeSet::from_ordered_entries(
4461            update
4462                .current_merge_conflicts
4463                .into_iter()
4464                .filter_map(|path| RepoPath::from_proto(&path).log_err()),
4465        );
4466        self.snapshot.branch = update.branch_summary.as_ref().map(proto_to_branch);
4467        self.snapshot.head_commit = update
4468            .head_commit_details
4469            .as_ref()
4470            .map(proto_to_commit_details);
4471
4472        self.snapshot.merge.conflicted_paths = conflicted_paths;
4473        self.snapshot.merge.message = update.merge_message.map(SharedString::from);
4474        self.snapshot.stash_entries = GitStash {
4475            entries: update
4476                .stash_entries
4477                .iter()
4478                .filter_map(|entry| proto_to_stash(entry).ok())
4479                .collect(),
4480        };
4481
4482        let edits = update
4483            .removed_statuses
4484            .into_iter()
4485            .filter_map(|path| {
4486                Some(sum_tree::Edit::Remove(PathKey(
4487                    RelPath::from_proto(&path).log_err()?,
4488                )))
4489            })
4490            .chain(
4491                update
4492                    .updated_statuses
4493                    .into_iter()
4494                    .filter_map(|updated_status| {
4495                        Some(sum_tree::Edit::Insert(updated_status.try_into().log_err()?))
4496                    }),
4497            )
4498            .collect::<Vec<_>>();
4499        self.snapshot.statuses_by_path.edit(edits, ());
4500        if update.is_last_update {
4501            self.snapshot.scan_id = update.scan_id;
4502        }
4503        cx.emit(RepositoryEvent::Updated {
4504            full_scan: true,
4505            new_instance: is_new,
4506        });
4507        Ok(())
4508    }
4509
4510    pub fn compare_checkpoints(
4511        &mut self,
4512        left: GitRepositoryCheckpoint,
4513        right: GitRepositoryCheckpoint,
4514    ) -> oneshot::Receiver<Result<bool>> {
4515        self.send_job(None, move |repo, _cx| async move {
4516            match repo {
4517                RepositoryState::Local { backend, .. } => {
4518                    backend.compare_checkpoints(left, right).await
4519                }
4520                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
4521            }
4522        })
4523    }
4524
4525    pub fn diff_checkpoints(
4526        &mut self,
4527        base_checkpoint: GitRepositoryCheckpoint,
4528        target_checkpoint: GitRepositoryCheckpoint,
4529    ) -> oneshot::Receiver<Result<String>> {
4530        self.send_job(None, move |repo, _cx| async move {
4531            match repo {
4532                RepositoryState::Local { backend, .. } => {
4533                    backend
4534                        .diff_checkpoints(base_checkpoint, target_checkpoint)
4535                        .await
4536                }
4537                RepositoryState::Remote { .. } => anyhow::bail!("not implemented yet"),
4538            }
4539        })
4540    }
4541
4542    fn schedule_scan(
4543        &mut self,
4544        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
4545        cx: &mut Context<Self>,
4546    ) {
4547        let this = cx.weak_entity();
4548        let _ = self.send_keyed_job(
4549            Some(GitJobKey::ReloadGitState),
4550            None,
4551            |state, mut cx| async move {
4552                log::debug!("run scheduled git status scan");
4553
4554                let Some(this) = this.upgrade() else {
4555                    return Ok(());
4556                };
4557                let RepositoryState::Local { backend, .. } = state else {
4558                    bail!("not a local repository")
4559                };
4560                let (snapshot, events) = this
4561                    .update(&mut cx, |this, _| {
4562                        this.paths_needing_status_update.clear();
4563                        compute_snapshot(
4564                            this.id,
4565                            this.work_directory_abs_path.clone(),
4566                            this.snapshot.clone(),
4567                            backend.clone(),
4568                        )
4569                    })?
4570                    .await?;
4571                this.update(&mut cx, |this, cx| {
4572                    this.snapshot = snapshot.clone();
4573                    for event in events {
4574                        cx.emit(event);
4575                    }
4576                })?;
4577                if let Some(updates_tx) = updates_tx {
4578                    updates_tx
4579                        .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
4580                        .ok();
4581                }
4582                Ok(())
4583            },
4584        );
4585    }
4586
4587    fn spawn_local_git_worker(
4588        work_directory_abs_path: Arc<Path>,
4589        dot_git_abs_path: Arc<Path>,
4590        _repository_dir_abs_path: Arc<Path>,
4591        _common_dir_abs_path: Arc<Path>,
4592        project_environment: WeakEntity<ProjectEnvironment>,
4593        fs: Arc<dyn Fs>,
4594        cx: &mut Context<Self>,
4595    ) -> mpsc::UnboundedSender<GitJob> {
4596        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
4597
4598        cx.spawn(async move |_, cx| {
4599            let environment = project_environment
4600                .upgrade()
4601                .context("missing project environment")?
4602                .update(cx, |project_environment, cx| {
4603                    project_environment.get_local_directory_environment(&Shell::System, work_directory_abs_path.clone(), cx)
4604                })?
4605                .await
4606                .unwrap_or_else(|| {
4607                    log::error!("failed to get working directory environment for repository {work_directory_abs_path:?}");
4608                    HashMap::default()
4609                });
4610            let search_paths = environment.get("PATH").map(|val| val.to_owned());
4611            let backend = cx
4612                .background_spawn(async move {
4613                    let system_git_binary_path = search_paths.and_then(|search_paths| which::which_in("git", Some(search_paths), &work_directory_abs_path).ok())
4614                        .or_else(|| which::which("git").ok());
4615                    fs.open_repo(&dot_git_abs_path, system_git_binary_path.as_deref())
4616                        .with_context(|| format!("opening repository at {dot_git_abs_path:?}"))
4617                })
4618                .await?;
4619
4620            if let Some(git_hosting_provider_registry) =
4621                cx.update(|cx| GitHostingProviderRegistry::try_global(cx))?
4622            {
4623                git_hosting_providers::register_additional_providers(
4624                    git_hosting_provider_registry,
4625                    backend.clone(),
4626                );
4627            }
4628
4629            let state = RepositoryState::Local {
4630                backend,
4631                environment: Arc::new(environment),
4632            };
4633            let mut jobs = VecDeque::new();
4634            loop {
4635                while let Ok(Some(next_job)) = job_rx.try_next() {
4636                    jobs.push_back(next_job);
4637                }
4638
4639                if let Some(job) = jobs.pop_front() {
4640                    if let Some(current_key) = &job.key
4641                        && jobs
4642                            .iter()
4643                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
4644                        {
4645                            continue;
4646                        }
4647                    (job.job)(state.clone(), cx).await;
4648                } else if let Some(job) = job_rx.next().await {
4649                    jobs.push_back(job);
4650                } else {
4651                    break;
4652                }
4653            }
4654            anyhow::Ok(())
4655        })
4656        .detach_and_log_err(cx);
4657
4658        job_tx
4659    }
4660
4661    fn spawn_remote_git_worker(
4662        project_id: ProjectId,
4663        client: AnyProtoClient,
4664        cx: &mut Context<Self>,
4665    ) -> mpsc::UnboundedSender<GitJob> {
4666        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
4667
4668        cx.spawn(async move |_, cx| {
4669            let state = RepositoryState::Remote { project_id, client };
4670            let mut jobs = VecDeque::new();
4671            loop {
4672                while let Ok(Some(next_job)) = job_rx.try_next() {
4673                    jobs.push_back(next_job);
4674                }
4675
4676                if let Some(job) = jobs.pop_front() {
4677                    if let Some(current_key) = &job.key
4678                        && jobs
4679                            .iter()
4680                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
4681                    {
4682                        continue;
4683                    }
4684                    (job.job)(state.clone(), cx).await;
4685                } else if let Some(job) = job_rx.next().await {
4686                    jobs.push_back(job);
4687                } else {
4688                    break;
4689                }
4690            }
4691            anyhow::Ok(())
4692        })
4693        .detach_and_log_err(cx);
4694
4695        job_tx
4696    }
4697
4698    fn load_staged_text(
4699        &mut self,
4700        buffer_id: BufferId,
4701        repo_path: RepoPath,
4702        cx: &App,
4703    ) -> Task<Result<Option<String>>> {
4704        let rx = self.send_job(None, move |state, _| async move {
4705            match state {
4706                RepositoryState::Local { backend, .. } => {
4707                    anyhow::Ok(backend.load_index_text(repo_path).await)
4708                }
4709                RepositoryState::Remote { project_id, client } => {
4710                    let response = client
4711                        .request(proto::OpenUnstagedDiff {
4712                            project_id: project_id.to_proto(),
4713                            buffer_id: buffer_id.to_proto(),
4714                        })
4715                        .await?;
4716                    Ok(response.staged_text)
4717                }
4718            }
4719        });
4720        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
4721    }
4722
4723    fn load_committed_text(
4724        &mut self,
4725        buffer_id: BufferId,
4726        repo_path: RepoPath,
4727        cx: &App,
4728    ) -> Task<Result<DiffBasesChange>> {
4729        let rx = self.send_job(None, move |state, _| async move {
4730            match state {
4731                RepositoryState::Local { backend, .. } => {
4732                    let committed_text = backend.load_committed_text(repo_path.clone()).await;
4733                    let staged_text = backend.load_index_text(repo_path).await;
4734                    let diff_bases_change = if committed_text == staged_text {
4735                        DiffBasesChange::SetBoth(committed_text)
4736                    } else {
4737                        DiffBasesChange::SetEach {
4738                            index: staged_text,
4739                            head: committed_text,
4740                        }
4741                    };
4742                    anyhow::Ok(diff_bases_change)
4743                }
4744                RepositoryState::Remote { project_id, client } => {
4745                    use proto::open_uncommitted_diff_response::Mode;
4746
4747                    let response = client
4748                        .request(proto::OpenUncommittedDiff {
4749                            project_id: project_id.to_proto(),
4750                            buffer_id: buffer_id.to_proto(),
4751                        })
4752                        .await?;
4753                    let mode = Mode::from_i32(response.mode).context("Invalid mode")?;
4754                    let bases = match mode {
4755                        Mode::IndexMatchesHead => DiffBasesChange::SetBoth(response.committed_text),
4756                        Mode::IndexAndHead => DiffBasesChange::SetEach {
4757                            head: response.committed_text,
4758                            index: response.staged_text,
4759                        },
4760                    };
4761                    Ok(bases)
4762                }
4763            }
4764        });
4765
4766        cx.spawn(|_: &mut AsyncApp| async move { rx.await? })
4767    }
4768
4769    fn paths_changed(
4770        &mut self,
4771        paths: Vec<RepoPath>,
4772        updates_tx: Option<mpsc::UnboundedSender<DownstreamUpdate>>,
4773        cx: &mut Context<Self>,
4774    ) {
4775        self.paths_needing_status_update.extend(paths);
4776
4777        let this = cx.weak_entity();
4778        let _ = self.send_keyed_job(
4779            Some(GitJobKey::RefreshStatuses),
4780            None,
4781            |state, mut cx| async move {
4782                let (prev_snapshot, mut changed_paths) = this.update(&mut cx, |this, _| {
4783                    (
4784                        this.snapshot.clone(),
4785                        mem::take(&mut this.paths_needing_status_update),
4786                    )
4787                })?;
4788                let RepositoryState::Local { backend, .. } = state else {
4789                    bail!("not a local repository")
4790                };
4791
4792                let paths = changed_paths.iter().cloned().collect::<Vec<_>>();
4793                if paths.is_empty() {
4794                    return Ok(());
4795                }
4796                let statuses = backend.status(&paths).await?;
4797                let stash_entries = backend.stash_entries().await?;
4798
4799                let changed_path_statuses = cx
4800                    .background_spawn(async move {
4801                        let mut changed_path_statuses = Vec::new();
4802                        let prev_statuses = prev_snapshot.statuses_by_path.clone();
4803                        let mut cursor = prev_statuses.cursor::<PathProgress>(());
4804
4805                        for (repo_path, status) in &*statuses.entries {
4806                            changed_paths.remove(repo_path);
4807                            if cursor.seek_forward(&PathTarget::Path(repo_path), Bias::Left)
4808                                && cursor.item().is_some_and(|entry| entry.status == *status)
4809                            {
4810                                continue;
4811                            }
4812
4813                            changed_path_statuses.push(Edit::Insert(StatusEntry {
4814                                repo_path: repo_path.clone(),
4815                                status: *status,
4816                            }));
4817                        }
4818                        let mut cursor = prev_statuses.cursor::<PathProgress>(());
4819                        for path in changed_paths.into_iter() {
4820                            if cursor.seek_forward(&PathTarget::Path(&path), Bias::Left) {
4821                                changed_path_statuses.push(Edit::Remove(PathKey(path.0)));
4822                            }
4823                        }
4824                        changed_path_statuses
4825                    })
4826                    .await;
4827
4828                this.update(&mut cx, |this, cx| {
4829                    let needs_update = !changed_path_statuses.is_empty()
4830                        || this.snapshot.stash_entries != stash_entries;
4831                    this.snapshot.stash_entries = stash_entries;
4832                    if !changed_path_statuses.is_empty() {
4833                        this.snapshot
4834                            .statuses_by_path
4835                            .edit(changed_path_statuses, ());
4836                        this.snapshot.scan_id += 1;
4837                    }
4838
4839                    if needs_update {
4840                        cx.emit(RepositoryEvent::Updated {
4841                            full_scan: false,
4842                            new_instance: false,
4843                        });
4844                    }
4845
4846                    if let Some(updates_tx) = updates_tx {
4847                        updates_tx
4848                            .unbounded_send(DownstreamUpdate::UpdateRepository(
4849                                this.snapshot.clone(),
4850                            ))
4851                            .ok();
4852                    }
4853                    cx.emit(RepositoryEvent::PathsChanged);
4854                })
4855            },
4856        );
4857    }
4858
4859    /// currently running git command and when it started
4860    pub fn current_job(&self) -> Option<JobInfo> {
4861        self.active_jobs.values().next().cloned()
4862    }
4863
4864    pub fn barrier(&mut self) -> oneshot::Receiver<()> {
4865        self.send_job(None, |_, _| async {})
4866    }
4867}
4868
4869fn get_permalink_in_rust_registry_src(
4870    provider_registry: Arc<GitHostingProviderRegistry>,
4871    path: PathBuf,
4872    selection: Range<u32>,
4873) -> Result<url::Url> {
4874    #[derive(Deserialize)]
4875    struct CargoVcsGit {
4876        sha1: String,
4877    }
4878
4879    #[derive(Deserialize)]
4880    struct CargoVcsInfo {
4881        git: CargoVcsGit,
4882        path_in_vcs: String,
4883    }
4884
4885    #[derive(Deserialize)]
4886    struct CargoPackage {
4887        repository: String,
4888    }
4889
4890    #[derive(Deserialize)]
4891    struct CargoToml {
4892        package: CargoPackage,
4893    }
4894
4895    let Some((dir, cargo_vcs_info_json)) = path.ancestors().skip(1).find_map(|dir| {
4896        let json = std::fs::read_to_string(dir.join(".cargo_vcs_info.json")).ok()?;
4897        Some((dir, json))
4898    }) else {
4899        bail!("No .cargo_vcs_info.json found in parent directories")
4900    };
4901    let cargo_vcs_info = serde_json::from_str::<CargoVcsInfo>(&cargo_vcs_info_json)?;
4902    let cargo_toml = std::fs::read_to_string(dir.join("Cargo.toml"))?;
4903    let manifest = toml::from_str::<CargoToml>(&cargo_toml)?;
4904    let (provider, remote) = parse_git_remote_url(provider_registry, &manifest.package.repository)
4905        .context("parsing package.repository field of manifest")?;
4906    let path = PathBuf::from(cargo_vcs_info.path_in_vcs).join(path.strip_prefix(dir).unwrap());
4907    let permalink = provider.build_permalink(
4908        remote,
4909        BuildPermalinkParams::new(
4910            &cargo_vcs_info.git.sha1,
4911            &RepoPath(
4912                RelPath::new(&path, PathStyle::local())
4913                    .context("invalid path")?
4914                    .into_arc(),
4915            ),
4916            Some(selection),
4917        ),
4918    );
4919    Ok(permalink)
4920}
4921
4922fn serialize_blame_buffer_response(blame: Option<git::blame::Blame>) -> proto::BlameBufferResponse {
4923    let Some(blame) = blame else {
4924        return proto::BlameBufferResponse {
4925            blame_response: None,
4926        };
4927    };
4928
4929    let entries = blame
4930        .entries
4931        .into_iter()
4932        .map(|entry| proto::BlameEntry {
4933            sha: entry.sha.as_bytes().into(),
4934            start_line: entry.range.start,
4935            end_line: entry.range.end,
4936            original_line_number: entry.original_line_number,
4937            author: entry.author,
4938            author_mail: entry.author_mail,
4939            author_time: entry.author_time,
4940            author_tz: entry.author_tz,
4941            committer: entry.committer_name,
4942            committer_mail: entry.committer_email,
4943            committer_time: entry.committer_time,
4944            committer_tz: entry.committer_tz,
4945            summary: entry.summary,
4946            previous: entry.previous,
4947            filename: entry.filename,
4948        })
4949        .collect::<Vec<_>>();
4950
4951    let messages = blame
4952        .messages
4953        .into_iter()
4954        .map(|(oid, message)| proto::CommitMessage {
4955            oid: oid.as_bytes().into(),
4956            message,
4957        })
4958        .collect::<Vec<_>>();
4959
4960    proto::BlameBufferResponse {
4961        blame_response: Some(proto::blame_buffer_response::BlameResponse {
4962            entries,
4963            messages,
4964            remote_url: blame.remote_url,
4965        }),
4966    }
4967}
4968
4969fn deserialize_blame_buffer_response(
4970    response: proto::BlameBufferResponse,
4971) -> Option<git::blame::Blame> {
4972    let response = response.blame_response?;
4973    let entries = response
4974        .entries
4975        .into_iter()
4976        .filter_map(|entry| {
4977            Some(git::blame::BlameEntry {
4978                sha: git::Oid::from_bytes(&entry.sha).ok()?,
4979                range: entry.start_line..entry.end_line,
4980                original_line_number: entry.original_line_number,
4981                committer_name: entry.committer,
4982                committer_time: entry.committer_time,
4983                committer_tz: entry.committer_tz,
4984                committer_email: entry.committer_mail,
4985                author: entry.author,
4986                author_mail: entry.author_mail,
4987                author_time: entry.author_time,
4988                author_tz: entry.author_tz,
4989                summary: entry.summary,
4990                previous: entry.previous,
4991                filename: entry.filename,
4992            })
4993        })
4994        .collect::<Vec<_>>();
4995
4996    let messages = response
4997        .messages
4998        .into_iter()
4999        .filter_map(|message| Some((git::Oid::from_bytes(&message.oid).ok()?, message.message)))
5000        .collect::<HashMap<_, _>>();
5001
5002    Some(Blame {
5003        entries,
5004        messages,
5005        remote_url: response.remote_url,
5006    })
5007}
5008
5009fn branch_to_proto(branch: &git::repository::Branch) -> proto::Branch {
5010    proto::Branch {
5011        is_head: branch.is_head,
5012        ref_name: branch.ref_name.to_string(),
5013        unix_timestamp: branch
5014            .most_recent_commit
5015            .as_ref()
5016            .map(|commit| commit.commit_timestamp as u64),
5017        upstream: branch.upstream.as_ref().map(|upstream| proto::GitUpstream {
5018            ref_name: upstream.ref_name.to_string(),
5019            tracking: upstream
5020                .tracking
5021                .status()
5022                .map(|upstream| proto::UpstreamTracking {
5023                    ahead: upstream.ahead as u64,
5024                    behind: upstream.behind as u64,
5025                }),
5026        }),
5027        most_recent_commit: branch
5028            .most_recent_commit
5029            .as_ref()
5030            .map(|commit| proto::CommitSummary {
5031                sha: commit.sha.to_string(),
5032                subject: commit.subject.to_string(),
5033                commit_timestamp: commit.commit_timestamp,
5034                author_name: commit.author_name.to_string(),
5035            }),
5036    }
5037}
5038
5039fn proto_to_branch(proto: &proto::Branch) -> git::repository::Branch {
5040    git::repository::Branch {
5041        is_head: proto.is_head,
5042        ref_name: proto.ref_name.clone().into(),
5043        upstream: proto
5044            .upstream
5045            .as_ref()
5046            .map(|upstream| git::repository::Upstream {
5047                ref_name: upstream.ref_name.to_string().into(),
5048                tracking: upstream
5049                    .tracking
5050                    .as_ref()
5051                    .map(|tracking| {
5052                        git::repository::UpstreamTracking::Tracked(UpstreamTrackingStatus {
5053                            ahead: tracking.ahead as u32,
5054                            behind: tracking.behind as u32,
5055                        })
5056                    })
5057                    .unwrap_or(git::repository::UpstreamTracking::Gone),
5058            }),
5059        most_recent_commit: proto.most_recent_commit.as_ref().map(|commit| {
5060            git::repository::CommitSummary {
5061                sha: commit.sha.to_string().into(),
5062                subject: commit.subject.to_string().into(),
5063                commit_timestamp: commit.commit_timestamp,
5064                author_name: commit.author_name.to_string().into(),
5065                has_parent: true,
5066            }
5067        }),
5068    }
5069}
5070
5071fn commit_details_to_proto(commit: &CommitDetails) -> proto::GitCommitDetails {
5072    proto::GitCommitDetails {
5073        sha: commit.sha.to_string(),
5074        message: commit.message.to_string(),
5075        commit_timestamp: commit.commit_timestamp,
5076        author_email: commit.author_email.to_string(),
5077        author_name: commit.author_name.to_string(),
5078    }
5079}
5080
5081fn proto_to_commit_details(proto: &proto::GitCommitDetails) -> CommitDetails {
5082    CommitDetails {
5083        sha: proto.sha.clone().into(),
5084        message: proto.message.clone().into(),
5085        commit_timestamp: proto.commit_timestamp,
5086        author_email: proto.author_email.clone().into(),
5087        author_name: proto.author_name.clone().into(),
5088    }
5089}
5090
5091async fn compute_snapshot(
5092    id: RepositoryId,
5093    work_directory_abs_path: Arc<Path>,
5094    prev_snapshot: RepositorySnapshot,
5095    backend: Arc<dyn GitRepository>,
5096) -> Result<(RepositorySnapshot, Vec<RepositoryEvent>)> {
5097    let mut events = Vec::new();
5098    let branches = backend.branches().await?;
5099    let branch = branches.into_iter().find(|branch| branch.is_head);
5100    let statuses = backend.status(&[RelPath::empty().into()]).await?;
5101    let stash_entries = backend.stash_entries().await?;
5102    let statuses_by_path = SumTree::from_iter(
5103        statuses
5104            .entries
5105            .iter()
5106            .map(|(repo_path, status)| StatusEntry {
5107                repo_path: repo_path.clone(),
5108                status: *status,
5109            }),
5110        (),
5111    );
5112    let (merge_details, merge_heads_changed) =
5113        MergeDetails::load(&backend, &statuses_by_path, &prev_snapshot).await?;
5114    log::debug!("new merge details (changed={merge_heads_changed:?}): {merge_details:?}");
5115
5116    if merge_heads_changed
5117        || branch != prev_snapshot.branch
5118        || statuses_by_path != prev_snapshot.statuses_by_path
5119    {
5120        events.push(RepositoryEvent::Updated {
5121            full_scan: true,
5122            new_instance: false,
5123        });
5124    }
5125
5126    // Cache merge conflict paths so they don't change from staging/unstaging,
5127    // until the merge heads change (at commit time, etc.).
5128    if merge_heads_changed {
5129        events.push(RepositoryEvent::MergeHeadsChanged);
5130    }
5131
5132    // Useful when branch is None in detached head state
5133    let head_commit = match backend.head_sha().await {
5134        Some(head_sha) => backend.show(head_sha).await.log_err(),
5135        None => None,
5136    };
5137
5138    // Used by edit prediction data collection
5139    let remote_origin_url = backend.remote_url("origin");
5140    let remote_upstream_url = backend.remote_url("upstream");
5141
5142    let snapshot = RepositorySnapshot {
5143        id,
5144        statuses_by_path,
5145        work_directory_abs_path,
5146        path_style: prev_snapshot.path_style,
5147        scan_id: prev_snapshot.scan_id + 1,
5148        branch,
5149        head_commit,
5150        merge: merge_details,
5151        remote_origin_url,
5152        remote_upstream_url,
5153        stash_entries,
5154    };
5155
5156    Ok((snapshot, events))
5157}
5158
5159fn status_from_proto(
5160    simple_status: i32,
5161    status: Option<proto::GitFileStatus>,
5162) -> anyhow::Result<FileStatus> {
5163    use proto::git_file_status::Variant;
5164
5165    let Some(variant) = status.and_then(|status| status.variant) else {
5166        let code = proto::GitStatus::from_i32(simple_status)
5167            .with_context(|| format!("Invalid git status code: {simple_status}"))?;
5168        let result = match code {
5169            proto::GitStatus::Added => TrackedStatus {
5170                worktree_status: StatusCode::Added,
5171                index_status: StatusCode::Unmodified,
5172            }
5173            .into(),
5174            proto::GitStatus::Modified => TrackedStatus {
5175                worktree_status: StatusCode::Modified,
5176                index_status: StatusCode::Unmodified,
5177            }
5178            .into(),
5179            proto::GitStatus::Conflict => UnmergedStatus {
5180                first_head: UnmergedStatusCode::Updated,
5181                second_head: UnmergedStatusCode::Updated,
5182            }
5183            .into(),
5184            proto::GitStatus::Deleted => TrackedStatus {
5185                worktree_status: StatusCode::Deleted,
5186                index_status: StatusCode::Unmodified,
5187            }
5188            .into(),
5189            _ => anyhow::bail!("Invalid code for simple status: {simple_status}"),
5190        };
5191        return Ok(result);
5192    };
5193
5194    let result = match variant {
5195        Variant::Untracked(_) => FileStatus::Untracked,
5196        Variant::Ignored(_) => FileStatus::Ignored,
5197        Variant::Unmerged(unmerged) => {
5198            let [first_head, second_head] =
5199                [unmerged.first_head, unmerged.second_head].map(|head| {
5200                    let code = proto::GitStatus::from_i32(head)
5201                        .with_context(|| format!("Invalid git status code: {head}"))?;
5202                    let result = match code {
5203                        proto::GitStatus::Added => UnmergedStatusCode::Added,
5204                        proto::GitStatus::Updated => UnmergedStatusCode::Updated,
5205                        proto::GitStatus::Deleted => UnmergedStatusCode::Deleted,
5206                        _ => anyhow::bail!("Invalid code for unmerged status: {code:?}"),
5207                    };
5208                    Ok(result)
5209                });
5210            let [first_head, second_head] = [first_head?, second_head?];
5211            UnmergedStatus {
5212                first_head,
5213                second_head,
5214            }
5215            .into()
5216        }
5217        Variant::Tracked(tracked) => {
5218            let [index_status, worktree_status] = [tracked.index_status, tracked.worktree_status]
5219                .map(|status| {
5220                    let code = proto::GitStatus::from_i32(status)
5221                        .with_context(|| format!("Invalid git status code: {status}"))?;
5222                    let result = match code {
5223                        proto::GitStatus::Modified => StatusCode::Modified,
5224                        proto::GitStatus::TypeChanged => StatusCode::TypeChanged,
5225                        proto::GitStatus::Added => StatusCode::Added,
5226                        proto::GitStatus::Deleted => StatusCode::Deleted,
5227                        proto::GitStatus::Renamed => StatusCode::Renamed,
5228                        proto::GitStatus::Copied => StatusCode::Copied,
5229                        proto::GitStatus::Unmodified => StatusCode::Unmodified,
5230                        _ => anyhow::bail!("Invalid code for tracked status: {code:?}"),
5231                    };
5232                    Ok(result)
5233                });
5234            let [index_status, worktree_status] = [index_status?, worktree_status?];
5235            TrackedStatus {
5236                index_status,
5237                worktree_status,
5238            }
5239            .into()
5240        }
5241    };
5242    Ok(result)
5243}
5244
5245fn status_to_proto(status: FileStatus) -> proto::GitFileStatus {
5246    use proto::git_file_status::{Tracked, Unmerged, Variant};
5247
5248    let variant = match status {
5249        FileStatus::Untracked => Variant::Untracked(Default::default()),
5250        FileStatus::Ignored => Variant::Ignored(Default::default()),
5251        FileStatus::Unmerged(UnmergedStatus {
5252            first_head,
5253            second_head,
5254        }) => Variant::Unmerged(Unmerged {
5255            first_head: unmerged_status_to_proto(first_head),
5256            second_head: unmerged_status_to_proto(second_head),
5257        }),
5258        FileStatus::Tracked(TrackedStatus {
5259            index_status,
5260            worktree_status,
5261        }) => Variant::Tracked(Tracked {
5262            index_status: tracked_status_to_proto(index_status),
5263            worktree_status: tracked_status_to_proto(worktree_status),
5264        }),
5265    };
5266    proto::GitFileStatus {
5267        variant: Some(variant),
5268    }
5269}
5270
5271fn unmerged_status_to_proto(code: UnmergedStatusCode) -> i32 {
5272    match code {
5273        UnmergedStatusCode::Added => proto::GitStatus::Added as _,
5274        UnmergedStatusCode::Deleted => proto::GitStatus::Deleted as _,
5275        UnmergedStatusCode::Updated => proto::GitStatus::Updated as _,
5276    }
5277}
5278
5279fn tracked_status_to_proto(code: StatusCode) -> i32 {
5280    match code {
5281        StatusCode::Added => proto::GitStatus::Added as _,
5282        StatusCode::Deleted => proto::GitStatus::Deleted as _,
5283        StatusCode::Modified => proto::GitStatus::Modified as _,
5284        StatusCode::Renamed => proto::GitStatus::Renamed as _,
5285        StatusCode::TypeChanged => proto::GitStatus::TypeChanged as _,
5286        StatusCode::Copied => proto::GitStatus::Copied as _,
5287        StatusCode::Unmodified => proto::GitStatus::Unmodified as _,
5288    }
5289}