git_store.rs

   1pub mod git_traversal;
   2
   3use crate::{
   4    buffer_store::{BufferStore, BufferStoreEvent},
   5    worktree_store::{WorktreeStore, WorktreeStoreEvent},
   6    ProjectEnvironment, ProjectItem, ProjectPath,
   7};
   8use anyhow::{anyhow, bail, Context as _, Result};
   9use askpass::{AskPassDelegate, AskPassSession};
  10use buffer_diff::{BufferDiff, BufferDiffEvent};
  11use client::ProjectId;
  12use collections::HashMap;
  13use fs::Fs;
  14use futures::{
  15    channel::{mpsc, oneshot},
  16    future::{self, OptionFuture, Shared},
  17    FutureExt as _, StreamExt as _,
  18};
  19use git::{
  20    blame::Blame,
  21    parse_git_remote_url,
  22    repository::{
  23        Branch, CommitDetails, DiffType, GitRepository, GitRepositoryCheckpoint, PushOptions,
  24        Remote, RemoteCommandOutput, RepoPath, ResetMode,
  25    },
  26    status::FileStatus,
  27    BuildPermalinkParams, GitHostingProviderRegistry,
  28};
  29use gpui::{
  30    App, AppContext, AsyncApp, Context, Entity, EventEmitter, SharedString, Subscription, Task,
  31    WeakEntity,
  32};
  33use language::{
  34    proto::{deserialize_version, serialize_version},
  35    Buffer, BufferEvent, Language, LanguageRegistry,
  36};
  37use parking_lot::Mutex;
  38use rpc::{
  39    proto::{self, git_reset, FromProto, ToProto, SSH_PROJECT_ID},
  40    AnyProtoClient, TypedEnvelope,
  41};
  42use serde::Deserialize;
  43use settings::WorktreeId;
  44use std::{
  45    collections::{hash_map, VecDeque},
  46    future::Future,
  47    ops::Range,
  48    path::{Path, PathBuf},
  49    sync::Arc,
  50};
  51use sum_tree::TreeSet;
  52use text::BufferId;
  53use util::{debug_panic, maybe, ResultExt};
  54use worktree::{
  55    proto_to_branch, File, PathKey, ProjectEntryId, RepositoryEntry, StatusEntry,
  56    UpdatedGitRepositoriesSet, Worktree,
  57};
  58
  59pub struct GitStore {
  60    state: GitStoreState,
  61    buffer_store: Entity<BufferStore>,
  62    worktree_store: Entity<WorktreeStore>,
  63    repositories: HashMap<ProjectEntryId, Entity<Repository>>,
  64    active_repo_id: Option<ProjectEntryId>,
  65    #[allow(clippy::type_complexity)]
  66    loading_diffs:
  67        HashMap<(BufferId, DiffKind), Shared<Task<Result<Entity<BufferDiff>, Arc<anyhow::Error>>>>>,
  68    diffs: HashMap<BufferId, Entity<BufferDiffState>>,
  69    update_sender: mpsc::UnboundedSender<GitJob>,
  70    shared_diffs: HashMap<proto::PeerId, HashMap<BufferId, SharedDiffs>>,
  71    _subscriptions: [Subscription; 2],
  72}
  73
  74#[derive(Default)]
  75struct SharedDiffs {
  76    unstaged: Option<Entity<BufferDiff>>,
  77    uncommitted: Option<Entity<BufferDiff>>,
  78}
  79
  80#[derive(Default)]
  81struct BufferDiffState {
  82    unstaged_diff: Option<WeakEntity<BufferDiff>>,
  83    uncommitted_diff: Option<WeakEntity<BufferDiff>>,
  84    recalculate_diff_task: Option<Task<Result<()>>>,
  85    language: Option<Arc<Language>>,
  86    language_registry: Option<Arc<LanguageRegistry>>,
  87    diff_updated_futures: Vec<oneshot::Sender<()>>,
  88    hunk_staging_operation_count: usize,
  89
  90    head_text: Option<Arc<String>>,
  91    index_text: Option<Arc<String>>,
  92    head_changed: bool,
  93    index_changed: bool,
  94    language_changed: bool,
  95}
  96
  97#[derive(Clone, Debug)]
  98enum DiffBasesChange {
  99    SetIndex(Option<String>),
 100    SetHead(Option<String>),
 101    SetEach {
 102        index: Option<String>,
 103        head: Option<String>,
 104    },
 105    SetBoth(Option<String>),
 106}
 107
 108#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
 109enum DiffKind {
 110    Unstaged,
 111    Uncommitted,
 112}
 113
 114enum GitStoreState {
 115    Local {
 116        downstream_client: Option<LocalDownstreamState>,
 117        environment: Entity<ProjectEnvironment>,
 118        fs: Arc<dyn Fs>,
 119    },
 120    Ssh {
 121        upstream_client: AnyProtoClient,
 122        upstream_project_id: ProjectId,
 123        downstream_client: Option<(AnyProtoClient, ProjectId)>,
 124        environment: Entity<ProjectEnvironment>,
 125    },
 126    Remote {
 127        upstream_client: AnyProtoClient,
 128        project_id: ProjectId,
 129    },
 130}
 131
 132enum DownstreamUpdate {
 133    UpdateRepository(RepositoryEntry),
 134    RemoveRepository(ProjectEntryId),
 135}
 136
 137struct LocalDownstreamState {
 138    client: AnyProtoClient,
 139    project_id: ProjectId,
 140    updates_tx: mpsc::UnboundedSender<DownstreamUpdate>,
 141    _task: Task<Result<()>>,
 142}
 143
 144#[derive(Clone)]
 145pub struct GitStoreCheckpoint {
 146    checkpoints_by_work_dir_abs_path: HashMap<PathBuf, GitRepositoryCheckpoint>,
 147}
 148
 149pub struct Repository {
 150    pub repository_entry: RepositoryEntry,
 151    pub merge_message: Option<String>,
 152    pub completed_scan_id: usize,
 153    commit_message_buffer: Option<Entity<Buffer>>,
 154    git_store: WeakEntity<GitStore>,
 155    project_environment: Option<WeakEntity<ProjectEnvironment>>,
 156    pub worktree_id: Option<WorktreeId>,
 157    state: RepositoryState,
 158    job_sender: mpsc::UnboundedSender<GitJob>,
 159    askpass_delegates: Arc<Mutex<HashMap<u64, AskPassDelegate>>>,
 160    latest_askpass_id: u64,
 161}
 162
 163#[derive(Clone)]
 164enum RepositoryState {
 165    Local(Arc<dyn GitRepository>),
 166    Remote {
 167        project_id: ProjectId,
 168        client: AnyProtoClient,
 169        work_directory_id: ProjectEntryId,
 170    },
 171}
 172
 173#[derive(Debug)]
 174pub enum GitEvent {
 175    ActiveRepositoryChanged,
 176    FileSystemUpdated,
 177    GitStateUpdated,
 178    IndexWriteError(anyhow::Error),
 179}
 180
 181struct GitJob {
 182    job: Box<dyn FnOnce(&mut AsyncApp) -> Task<()>>,
 183    key: Option<GitJobKey>,
 184}
 185
 186#[derive(PartialEq, Eq)]
 187enum GitJobKey {
 188    WriteIndex(RepoPath),
 189    BatchReadIndex(ProjectEntryId),
 190}
 191
 192impl EventEmitter<GitEvent> for GitStore {}
 193
 194impl GitStore {
 195    pub fn local(
 196        worktree_store: &Entity<WorktreeStore>,
 197        buffer_store: Entity<BufferStore>,
 198        environment: Entity<ProjectEnvironment>,
 199        fs: Arc<dyn Fs>,
 200        cx: &mut Context<Self>,
 201    ) -> Self {
 202        Self::new(
 203            worktree_store.clone(),
 204            buffer_store,
 205            GitStoreState::Local {
 206                downstream_client: None,
 207                environment,
 208                fs,
 209            },
 210            cx,
 211        )
 212    }
 213
 214    pub fn remote(
 215        worktree_store: &Entity<WorktreeStore>,
 216        buffer_store: Entity<BufferStore>,
 217        upstream_client: AnyProtoClient,
 218        project_id: ProjectId,
 219        cx: &mut Context<Self>,
 220    ) -> Self {
 221        Self::new(
 222            worktree_store.clone(),
 223            buffer_store,
 224            GitStoreState::Remote {
 225                upstream_client,
 226                project_id,
 227            },
 228            cx,
 229        )
 230    }
 231
 232    pub fn ssh(
 233        worktree_store: &Entity<WorktreeStore>,
 234        buffer_store: Entity<BufferStore>,
 235        environment: Entity<ProjectEnvironment>,
 236        upstream_client: AnyProtoClient,
 237        cx: &mut Context<Self>,
 238    ) -> Self {
 239        Self::new(
 240            worktree_store.clone(),
 241            buffer_store,
 242            GitStoreState::Ssh {
 243                upstream_client,
 244                upstream_project_id: ProjectId(SSH_PROJECT_ID),
 245                downstream_client: None,
 246                environment,
 247            },
 248            cx,
 249        )
 250    }
 251
 252    fn new(
 253        worktree_store: Entity<WorktreeStore>,
 254        buffer_store: Entity<BufferStore>,
 255        state: GitStoreState,
 256        cx: &mut Context<Self>,
 257    ) -> Self {
 258        let update_sender = Self::spawn_git_worker(cx);
 259        let _subscriptions = [
 260            cx.subscribe(&worktree_store, Self::on_worktree_store_event),
 261            cx.subscribe(&buffer_store, Self::on_buffer_store_event),
 262        ];
 263
 264        GitStore {
 265            state,
 266            buffer_store,
 267            worktree_store,
 268            repositories: HashMap::default(),
 269            active_repo_id: None,
 270            update_sender,
 271            _subscriptions,
 272            loading_diffs: HashMap::default(),
 273            shared_diffs: HashMap::default(),
 274            diffs: HashMap::default(),
 275        }
 276    }
 277
 278    pub fn init(client: &AnyProtoClient) {
 279        client.add_entity_request_handler(Self::handle_get_remotes);
 280        client.add_entity_request_handler(Self::handle_get_branches);
 281        client.add_entity_request_handler(Self::handle_change_branch);
 282        client.add_entity_request_handler(Self::handle_create_branch);
 283        client.add_entity_request_handler(Self::handle_git_init);
 284        client.add_entity_request_handler(Self::handle_push);
 285        client.add_entity_request_handler(Self::handle_pull);
 286        client.add_entity_request_handler(Self::handle_fetch);
 287        client.add_entity_request_handler(Self::handle_stage);
 288        client.add_entity_request_handler(Self::handle_unstage);
 289        client.add_entity_request_handler(Self::handle_commit);
 290        client.add_entity_request_handler(Self::handle_reset);
 291        client.add_entity_request_handler(Self::handle_show);
 292        client.add_entity_request_handler(Self::handle_checkout_files);
 293        client.add_entity_request_handler(Self::handle_open_commit_message_buffer);
 294        client.add_entity_request_handler(Self::handle_set_index_text);
 295        client.add_entity_request_handler(Self::handle_askpass);
 296        client.add_entity_request_handler(Self::handle_check_for_pushed_commits);
 297        client.add_entity_request_handler(Self::handle_git_diff);
 298        client.add_entity_request_handler(Self::handle_open_unstaged_diff);
 299        client.add_entity_request_handler(Self::handle_open_uncommitted_diff);
 300        client.add_entity_message_handler(Self::handle_update_diff_bases);
 301        client.add_entity_request_handler(Self::handle_get_permalink_to_line);
 302        client.add_entity_request_handler(Self::handle_blame_buffer);
 303        client.add_entity_message_handler(Self::handle_update_repository);
 304        client.add_entity_message_handler(Self::handle_remove_repository);
 305    }
 306
 307    pub fn is_local(&self) -> bool {
 308        matches!(self.state, GitStoreState::Local { .. })
 309    }
 310
 311    pub fn shared(&mut self, project_id: u64, client: AnyProtoClient, cx: &mut Context<Self>) {
 312        match &mut self.state {
 313            GitStoreState::Ssh {
 314                downstream_client, ..
 315            } => {
 316                for repo in self.repositories.values() {
 317                    client
 318                        .send(repo.read(cx).repository_entry.initial_update(project_id))
 319                        .log_err();
 320                }
 321                *downstream_client = Some((client, ProjectId(project_id)));
 322            }
 323            GitStoreState::Local {
 324                downstream_client, ..
 325            } => {
 326                let mut snapshots = HashMap::default();
 327                let (updates_tx, mut updates_rx) = mpsc::unbounded();
 328                for repo in self.repositories.values() {
 329                    updates_tx
 330                        .unbounded_send(DownstreamUpdate::UpdateRepository(
 331                            repo.read(cx).repository_entry.clone(),
 332                        ))
 333                        .ok();
 334                }
 335                *downstream_client = Some(LocalDownstreamState {
 336                    client: client.clone(),
 337                    project_id: ProjectId(project_id),
 338                    updates_tx,
 339                    _task: cx.spawn(async move |this, cx| {
 340                        cx.background_spawn(async move {
 341                            while let Some(update) = updates_rx.next().await {
 342                                match update {
 343                                    DownstreamUpdate::UpdateRepository(snapshot) => {
 344                                        if let Some(old_snapshot) =
 345                                            snapshots.get_mut(&snapshot.work_directory_id)
 346                                        {
 347                                            let update =
 348                                                snapshot.build_update(old_snapshot, project_id);
 349                                            *old_snapshot = snapshot;
 350                                            client.send(update)?;
 351                                        } else {
 352                                            let update = snapshot.initial_update(project_id);
 353                                            client.send(update)?;
 354                                            snapshots.insert(snapshot.work_directory_id, snapshot);
 355                                        }
 356                                    }
 357                                    DownstreamUpdate::RemoveRepository(id) => {
 358                                        client.send(proto::RemoveRepository {
 359                                            project_id,
 360                                            id: id.to_proto(),
 361                                        })?;
 362                                    }
 363                                }
 364                            }
 365                            anyhow::Ok(())
 366                        })
 367                        .await
 368                        .ok();
 369                        this.update(cx, |this, _| {
 370                            if let GitStoreState::Local {
 371                                downstream_client, ..
 372                            } = &mut this.state
 373                            {
 374                                downstream_client.take();
 375                            } else {
 376                                unreachable!("unshared called on remote store");
 377                            }
 378                        })
 379                    }),
 380                });
 381            }
 382            GitStoreState::Remote { .. } => {
 383                debug_panic!("shared called on remote store");
 384            }
 385        }
 386    }
 387
 388    pub fn unshared(&mut self, _cx: &mut Context<Self>) {
 389        match &mut self.state {
 390            GitStoreState::Local {
 391                downstream_client, ..
 392            } => {
 393                downstream_client.take();
 394            }
 395            GitStoreState::Ssh {
 396                downstream_client, ..
 397            } => {
 398                downstream_client.take();
 399            }
 400            GitStoreState::Remote { .. } => {
 401                debug_panic!("unshared called on remote store");
 402            }
 403        }
 404        self.shared_diffs.clear();
 405    }
 406
 407    pub(crate) fn forget_shared_diffs_for(&mut self, peer_id: &proto::PeerId) {
 408        self.shared_diffs.remove(peer_id);
 409    }
 410
 411    pub fn active_repository(&self) -> Option<Entity<Repository>> {
 412        self.active_repo_id
 413            .as_ref()
 414            .map(|id| self.repositories[&id].clone())
 415    }
 416
 417    pub fn open_unstaged_diff(
 418        &mut self,
 419        buffer: Entity<Buffer>,
 420        cx: &mut Context<Self>,
 421    ) -> Task<Result<Entity<BufferDiff>>> {
 422        let buffer_id = buffer.read(cx).remote_id();
 423        if let Some(diff_state) = self.diffs.get(&buffer_id) {
 424            if let Some(unstaged_diff) = diff_state
 425                .read(cx)
 426                .unstaged_diff
 427                .as_ref()
 428                .and_then(|weak| weak.upgrade())
 429            {
 430                if let Some(task) =
 431                    diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 432                {
 433                    return cx.background_executor().spawn(async move {
 434                        task.await?;
 435                        Ok(unstaged_diff)
 436                    });
 437                }
 438                return Task::ready(Ok(unstaged_diff));
 439            }
 440        }
 441
 442        let task = match self.loading_diffs.entry((buffer_id, DiffKind::Unstaged)) {
 443            hash_map::Entry::Occupied(e) => e.get().clone(),
 444            hash_map::Entry::Vacant(entry) => {
 445                let staged_text = self.state.load_staged_text(&buffer, &self.buffer_store, cx);
 446                entry
 447                    .insert(
 448                        cx.spawn(async move |this, cx| {
 449                            Self::open_diff_internal(
 450                                this,
 451                                DiffKind::Unstaged,
 452                                staged_text.await.map(DiffBasesChange::SetIndex),
 453                                buffer,
 454                                cx,
 455                            )
 456                            .await
 457                            .map_err(Arc::new)
 458                        })
 459                        .shared(),
 460                    )
 461                    .clone()
 462            }
 463        };
 464
 465        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 466    }
 467
 468    pub fn open_uncommitted_diff(
 469        &mut self,
 470        buffer: Entity<Buffer>,
 471        cx: &mut Context<Self>,
 472    ) -> Task<Result<Entity<BufferDiff>>> {
 473        let buffer_id = buffer.read(cx).remote_id();
 474
 475        if let Some(diff_state) = self.diffs.get(&buffer_id) {
 476            if let Some(uncommitted_diff) = diff_state
 477                .read(cx)
 478                .uncommitted_diff
 479                .as_ref()
 480                .and_then(|weak| weak.upgrade())
 481            {
 482                if let Some(task) =
 483                    diff_state.update(cx, |diff_state, _| diff_state.wait_for_recalculation())
 484                {
 485                    return cx.background_executor().spawn(async move {
 486                        task.await?;
 487                        Ok(uncommitted_diff)
 488                    });
 489                }
 490                return Task::ready(Ok(uncommitted_diff));
 491            }
 492        }
 493
 494        let task = match self.loading_diffs.entry((buffer_id, DiffKind::Uncommitted)) {
 495            hash_map::Entry::Occupied(e) => e.get().clone(),
 496            hash_map::Entry::Vacant(entry) => {
 497                let changes = self
 498                    .state
 499                    .load_committed_text(&buffer, &self.buffer_store, cx);
 500
 501                entry
 502                    .insert(
 503                        cx.spawn(async move |this, cx| {
 504                            Self::open_diff_internal(
 505                                this,
 506                                DiffKind::Uncommitted,
 507                                changes.await,
 508                                buffer,
 509                                cx,
 510                            )
 511                            .await
 512                            .map_err(Arc::new)
 513                        })
 514                        .shared(),
 515                    )
 516                    .clone()
 517            }
 518        };
 519
 520        cx.background_spawn(async move { task.await.map_err(|e| anyhow!("{e}")) })
 521    }
 522
 523    async fn open_diff_internal(
 524        this: WeakEntity<Self>,
 525        kind: DiffKind,
 526        texts: Result<DiffBasesChange>,
 527        buffer_entity: Entity<Buffer>,
 528        cx: &mut AsyncApp,
 529    ) -> Result<Entity<BufferDiff>> {
 530        let diff_bases_change = match texts {
 531            Err(e) => {
 532                this.update(cx, |this, cx| {
 533                    let buffer = buffer_entity.read(cx);
 534                    let buffer_id = buffer.remote_id();
 535                    this.loading_diffs.remove(&(buffer_id, kind));
 536                })?;
 537                return Err(e);
 538            }
 539            Ok(change) => change,
 540        };
 541
 542        this.update(cx, |this, cx| {
 543            let buffer = buffer_entity.read(cx);
 544            let buffer_id = buffer.remote_id();
 545            let language = buffer.language().cloned();
 546            let language_registry = buffer.language_registry();
 547            let text_snapshot = buffer.text_snapshot();
 548            this.loading_diffs.remove(&(buffer_id, kind));
 549
 550            let diff_state = this
 551                .diffs
 552                .entry(buffer_id)
 553                .or_insert_with(|| cx.new(|_| BufferDiffState::default()));
 554
 555            let diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
 556
 557            cx.subscribe(&diff, Self::on_buffer_diff_event).detach();
 558            diff_state.update(cx, |diff_state, cx| {
 559                diff_state.language = language;
 560                diff_state.language_registry = language_registry;
 561
 562                match kind {
 563                    DiffKind::Unstaged => diff_state.unstaged_diff = Some(diff.downgrade()),
 564                    DiffKind::Uncommitted => {
 565                        let unstaged_diff = if let Some(diff) = diff_state.unstaged_diff() {
 566                            diff
 567                        } else {
 568                            let unstaged_diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
 569                            diff_state.unstaged_diff = Some(unstaged_diff.downgrade());
 570                            unstaged_diff
 571                        };
 572
 573                        diff.update(cx, |diff, _| diff.set_secondary_diff(unstaged_diff));
 574                        diff_state.uncommitted_diff = Some(diff.downgrade())
 575                    }
 576                }
 577
 578                let rx = diff_state.diff_bases_changed(text_snapshot, diff_bases_change, 0, cx);
 579
 580                anyhow::Ok(async move {
 581                    rx.await.ok();
 582                    Ok(diff)
 583                })
 584            })
 585        })??
 586        .await
 587    }
 588
 589    pub fn get_unstaged_diff(&self, buffer_id: BufferId, cx: &App) -> Option<Entity<BufferDiff>> {
 590        let diff_state = self.diffs.get(&buffer_id)?;
 591        diff_state.read(cx).unstaged_diff.as_ref()?.upgrade()
 592    }
 593
 594    pub fn get_uncommitted_diff(
 595        &self,
 596        buffer_id: BufferId,
 597        cx: &App,
 598    ) -> Option<Entity<BufferDiff>> {
 599        let diff_state = self.diffs.get(&buffer_id)?;
 600        diff_state.read(cx).uncommitted_diff.as_ref()?.upgrade()
 601    }
 602
 603    pub fn project_path_git_status(
 604        &self,
 605        project_path: &ProjectPath,
 606        cx: &App,
 607    ) -> Option<FileStatus> {
 608        let (repo, repo_path) = self.repository_and_path_for_project_path(project_path, cx)?;
 609        Some(
 610            repo.read(cx)
 611                .repository_entry
 612                .status_for_path(&repo_path)?
 613                .status,
 614        )
 615    }
 616
 617    pub fn checkpoint(&self, cx: &App) -> Task<Result<GitStoreCheckpoint>> {
 618        let mut work_directory_abs_paths = Vec::new();
 619        let mut checkpoints = Vec::new();
 620        for repository in self.repositories.values() {
 621            let repository = repository.read(cx);
 622            work_directory_abs_paths
 623                .push(repository.repository_entry.work_directory_abs_path.clone());
 624            checkpoints.push(repository.checkpoint().map(|checkpoint| checkpoint?));
 625        }
 626
 627        cx.background_executor().spawn(async move {
 628            let checkpoints = future::try_join_all(checkpoints).await?;
 629            Ok(GitStoreCheckpoint {
 630                checkpoints_by_work_dir_abs_path: work_directory_abs_paths
 631                    .into_iter()
 632                    .zip(checkpoints)
 633                    .collect(),
 634            })
 635        })
 636    }
 637
 638    pub fn restore_checkpoint(&self, checkpoint: GitStoreCheckpoint, cx: &App) -> Task<Result<()>> {
 639        let repositories_by_work_dir_abs_path = self
 640            .repositories
 641            .values()
 642            .map(|repo| {
 643                (
 644                    repo.read(cx)
 645                        .repository_entry
 646                        .work_directory_abs_path
 647                        .clone(),
 648                    repo,
 649                )
 650            })
 651            .collect::<HashMap<_, _>>();
 652
 653        let mut tasks = Vec::new();
 654        for (dot_git_abs_path, checkpoint) in checkpoint.checkpoints_by_work_dir_abs_path {
 655            if let Some(repository) = repositories_by_work_dir_abs_path.get(&dot_git_abs_path) {
 656                let restore = repository.read(cx).restore_checkpoint(checkpoint);
 657                tasks.push(async move { restore.await? });
 658            }
 659        }
 660        cx.background_spawn(async move {
 661            future::try_join_all(tasks).await?;
 662            Ok(())
 663        })
 664    }
 665
 666    /// Compares two checkpoints, returning true if they are equal.
 667    pub fn compare_checkpoints(
 668        &self,
 669        left: GitStoreCheckpoint,
 670        mut right: GitStoreCheckpoint,
 671        cx: &App,
 672    ) -> Task<Result<bool>> {
 673        let repositories_by_work_dir_abs_path = self
 674            .repositories
 675            .values()
 676            .map(|repo| {
 677                (
 678                    repo.read(cx)
 679                        .repository_entry
 680                        .work_directory_abs_path
 681                        .clone(),
 682                    repo,
 683                )
 684            })
 685            .collect::<HashMap<_, _>>();
 686
 687        let mut tasks = Vec::new();
 688        for (dot_git_abs_path, left_checkpoint) in left.checkpoints_by_work_dir_abs_path {
 689            if let Some(right_checkpoint) = right
 690                .checkpoints_by_work_dir_abs_path
 691                .remove(&dot_git_abs_path)
 692            {
 693                if let Some(repository) = repositories_by_work_dir_abs_path.get(&dot_git_abs_path) {
 694                    let compare = repository
 695                        .read(cx)
 696                        .compare_checkpoints(left_checkpoint, right_checkpoint);
 697                    tasks.push(async move { compare.await? });
 698                }
 699            } else {
 700                return Task::ready(Ok(false));
 701            }
 702        }
 703        cx.background_spawn(async move {
 704            Ok(future::try_join_all(tasks)
 705                .await?
 706                .into_iter()
 707                .all(|result| result))
 708        })
 709    }
 710
 711    pub fn delete_checkpoint(&self, checkpoint: GitStoreCheckpoint, cx: &App) -> Task<Result<()>> {
 712        let repositories_by_work_directory_abs_path = self
 713            .repositories
 714            .values()
 715            .map(|repo| {
 716                (
 717                    repo.read(cx)
 718                        .repository_entry
 719                        .work_directory_abs_path
 720                        .clone(),
 721                    repo,
 722                )
 723            })
 724            .collect::<HashMap<_, _>>();
 725
 726        let mut tasks = Vec::new();
 727        for (work_dir_abs_path, checkpoint) in checkpoint.checkpoints_by_work_dir_abs_path {
 728            if let Some(repository) =
 729                repositories_by_work_directory_abs_path.get(&work_dir_abs_path)
 730            {
 731                let delete = repository.read(cx).delete_checkpoint(checkpoint);
 732                tasks.push(async move { delete.await? });
 733            }
 734        }
 735        cx.background_spawn(async move {
 736            future::try_join_all(tasks).await?;
 737            Ok(())
 738        })
 739    }
 740
 741    /// Blames a buffer.
 742    pub fn blame_buffer(
 743        &self,
 744        buffer: &Entity<Buffer>,
 745        version: Option<clock::Global>,
 746        cx: &App,
 747    ) -> Task<Result<Option<Blame>>> {
 748        let buffer = buffer.read(cx);
 749        let Some(file) = File::from_dyn(buffer.file()) else {
 750            return Task::ready(Err(anyhow!("buffer has no file")));
 751        };
 752
 753        match file.worktree.clone().read(cx) {
 754            Worktree::Local(worktree) => {
 755                let worktree = worktree.snapshot();
 756                let blame_params = maybe!({
 757                    let local_repo = match worktree.local_repo_containing_path(&file.path) {
 758                        Some(repo_for_path) => repo_for_path,
 759                        None => return Ok(None),
 760                    };
 761
 762                    let relative_path = local_repo
 763                        .relativize(&file.path)
 764                        .context("failed to relativize buffer path")?;
 765
 766                    let repo = local_repo.repo().clone();
 767
 768                    let content = match version {
 769                        Some(version) => buffer.rope_for_version(&version).clone(),
 770                        None => buffer.as_rope().clone(),
 771                    };
 772
 773                    anyhow::Ok(Some((repo, relative_path, content)))
 774                });
 775
 776                cx.spawn(async move |_cx| {
 777                    let Some((repo, relative_path, content)) = blame_params? else {
 778                        return Ok(None);
 779                    };
 780                    repo.blame(relative_path.clone(), content)
 781                        .await
 782                        .with_context(|| format!("Failed to blame {:?}", relative_path.0))
 783                        .map(Some)
 784                })
 785            }
 786            Worktree::Remote(worktree) => {
 787                let buffer_id = buffer.remote_id();
 788                let version = buffer.version();
 789                let project_id = worktree.project_id();
 790                let client = worktree.client();
 791                cx.spawn(async move |_| {
 792                    let response = client
 793                        .request(proto::BlameBuffer {
 794                            project_id,
 795                            buffer_id: buffer_id.into(),
 796                            version: serialize_version(&version),
 797                        })
 798                        .await?;
 799                    Ok(deserialize_blame_buffer_response(response))
 800                })
 801            }
 802        }
 803    }
 804
 805    pub fn get_permalink_to_line(
 806        &self,
 807        buffer: &Entity<Buffer>,
 808        selection: Range<u32>,
 809        cx: &App,
 810    ) -> Task<Result<url::Url>> {
 811        let buffer = buffer.read(cx);
 812        let Some(file) = File::from_dyn(buffer.file()) else {
 813            return Task::ready(Err(anyhow!("buffer has no file")));
 814        };
 815
 816        match file.worktree.read(cx) {
 817            Worktree::Local(worktree) => {
 818                let repository = self
 819                    .repository_and_path_for_project_path(
 820                        &(worktree.id(), file.path.clone()).into(),
 821                        cx,
 822                    )
 823                    .map(|(repository, _)| repository);
 824                let Some((local_repo_entry, repo_entry)) = repository.and_then(|repository| {
 825                    let repository = repository.read(cx);
 826                    let repo_entry = repository.repository_entry.clone();
 827                    Some((worktree.get_local_repo(&repo_entry)?, repo_entry))
 828                }) else {
 829                    // If we're not in a Git repo, check whether this is a Rust source
 830                    // file in the Cargo registry (presumably opened with go-to-definition
 831                    // from a normal Rust file). If so, we can put together a permalink
 832                    // using crate metadata.
 833                    if buffer
 834                        .language()
 835                        .is_none_or(|lang| lang.name() != "Rust".into())
 836                    {
 837                        return Task::ready(Err(anyhow!("no permalink available")));
 838                    }
 839                    let Some(file_path) = worktree.absolutize(&file.path).ok() else {
 840                        return Task::ready(Err(anyhow!("no permalink available")));
 841                    };
 842                    return cx.spawn(async move |cx| {
 843                        let provider_registry =
 844                            cx.update(GitHostingProviderRegistry::default_global)?;
 845                        get_permalink_in_rust_registry_src(provider_registry, file_path, selection)
 846                            .map_err(|_| anyhow!("no permalink available"))
 847                    });
 848                };
 849
 850                let path = match local_repo_entry.relativize(&file.path) {
 851                    Ok(RepoPath(path)) => path,
 852                    Err(e) => return Task::ready(Err(e)),
 853                };
 854
 855                let remote = repo_entry
 856                    .branch()
 857                    .and_then(|b| b.upstream.as_ref())
 858                    .and_then(|b| b.remote_name())
 859                    .unwrap_or("origin")
 860                    .to_string();
 861
 862                let repo = local_repo_entry.repo().clone();
 863                cx.spawn(async move |cx| {
 864                    let origin_url = repo
 865                        .remote_url(&remote)
 866                        .ok_or_else(|| anyhow!("remote \"{remote}\" not found"))?;
 867
 868                    let sha = repo
 869                        .head_sha()
 870                        .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
 871
 872                    let provider_registry =
 873                        cx.update(GitHostingProviderRegistry::default_global)?;
 874
 875                    let (provider, remote) =
 876                        parse_git_remote_url(provider_registry, &origin_url)
 877                            .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
 878
 879                    let path = path
 880                        .to_str()
 881                        .ok_or_else(|| anyhow!("failed to convert path to string"))?;
 882
 883                    Ok(provider.build_permalink(
 884                        remote,
 885                        BuildPermalinkParams {
 886                            sha: &sha,
 887                            path,
 888                            selection: Some(selection),
 889                        },
 890                    ))
 891                })
 892            }
 893            Worktree::Remote(worktree) => {
 894                let buffer_id = buffer.remote_id();
 895                let project_id = worktree.project_id();
 896                let client = worktree.client();
 897                cx.spawn(async move |_| {
 898                    let response = client
 899                        .request(proto::GetPermalinkToLine {
 900                            project_id,
 901                            buffer_id: buffer_id.into(),
 902                            selection: Some(proto::Range {
 903                                start: selection.start as u64,
 904                                end: selection.end as u64,
 905                            }),
 906                        })
 907                        .await?;
 908
 909                    url::Url::parse(&response.permalink).context("failed to parse permalink")
 910                })
 911            }
 912        }
 913    }
 914
 915    fn downstream_client(&self) -> Option<(AnyProtoClient, ProjectId)> {
 916        match &self.state {
 917            GitStoreState::Local {
 918                downstream_client, ..
 919            } => downstream_client
 920                .as_ref()
 921                .map(|state| (state.client.clone(), state.project_id)),
 922            GitStoreState::Ssh {
 923                downstream_client, ..
 924            } => downstream_client.clone(),
 925            GitStoreState::Remote { .. } => None,
 926        }
 927    }
 928
 929    fn upstream_client(&self) -> Option<AnyProtoClient> {
 930        match &self.state {
 931            GitStoreState::Local { .. } => None,
 932            GitStoreState::Ssh {
 933                upstream_client, ..
 934            }
 935            | GitStoreState::Remote {
 936                upstream_client, ..
 937            } => Some(upstream_client.clone()),
 938        }
 939    }
 940
 941    fn project_environment(&self) -> Option<Entity<ProjectEnvironment>> {
 942        match &self.state {
 943            GitStoreState::Local { environment, .. } => Some(environment.clone()),
 944            GitStoreState::Ssh { environment, .. } => Some(environment.clone()),
 945            GitStoreState::Remote { .. } => None,
 946        }
 947    }
 948
 949    fn project_id(&self) -> Option<ProjectId> {
 950        match &self.state {
 951            GitStoreState::Local { .. } => None,
 952            GitStoreState::Ssh { .. } => Some(ProjectId(proto::SSH_PROJECT_ID)),
 953            GitStoreState::Remote { project_id, .. } => Some(*project_id),
 954        }
 955    }
 956
 957    fn on_worktree_store_event(
 958        &mut self,
 959        worktree_store: Entity<WorktreeStore>,
 960        event: &WorktreeStoreEvent,
 961        cx: &mut Context<Self>,
 962    ) {
 963        match event {
 964            WorktreeStoreEvent::WorktreeUpdatedGitRepositories(worktree_id, changed_repos) => {
 965                // We should only get this event for a local project.
 966                self.update_repositories(&worktree_store, cx);
 967                if self.is_local() {
 968                    if let Some(worktree) =
 969                        worktree_store.read(cx).worktree_for_id(*worktree_id, cx)
 970                    {
 971                        self.local_worktree_git_repos_changed(worktree, changed_repos, cx);
 972                    }
 973                }
 974                cx.emit(GitEvent::GitStateUpdated);
 975            }
 976            WorktreeStoreEvent::WorktreeAdded(_) => {}
 977            _ => {
 978                cx.emit(GitEvent::FileSystemUpdated);
 979            }
 980        }
 981    }
 982
 983    fn update_repositories(
 984        &mut self,
 985        worktree_store: &Entity<WorktreeStore>,
 986        cx: &mut Context<'_, GitStore>,
 987    ) {
 988        let mut new_repositories = HashMap::default();
 989        let git_store = cx.weak_entity();
 990        worktree_store.update(cx, |worktree_store, cx| {
 991            for worktree in worktree_store.worktrees() {
 992                worktree.update(cx, |worktree, cx| {
 993                    let snapshot = worktree.snapshot();
 994                    for repo_entry in snapshot.repositories().iter() {
 995                        let git_repo_and_merge_message = worktree
 996                            .as_local()
 997                            .and_then(|local_worktree| local_worktree.get_local_repo(repo_entry))
 998                            .map(|local_repo| {
 999                                (
1000                                    RepositoryState::Local(local_repo.repo().clone()),
1001                                    local_repo.merge_message.clone(),
1002                                )
1003                            })
1004                            .or_else(|| {
1005                                let git_repo = RepositoryState::Remote {
1006                                    project_id: self.project_id()?,
1007                                    client: self
1008                                        .upstream_client()
1009                                        .context("no upstream client")
1010                                        .log_err()?
1011                                        .clone(),
1012                                    work_directory_id: repo_entry.work_directory_id(),
1013                                };
1014                                Some((git_repo, None))
1015                            });
1016
1017                        let Some((git_repo, merge_message)) = git_repo_and_merge_message else {
1018                            continue;
1019                        };
1020
1021                        let existing_repo = self
1022                            .repositories
1023                            .values()
1024                            .find(|repo| repo.read(cx).id() == repo_entry.work_directory_id());
1025
1026                        let repo = if let Some(existing_repo) = existing_repo {
1027                            // Update the statuses and merge message but keep everything else.
1028                            let existing_repo = existing_repo.clone();
1029                            existing_repo.update(cx, |existing_repo, _| {
1030                                existing_repo.repository_entry = repo_entry.clone();
1031                                if matches!(git_repo, RepositoryState::Local { .. }) {
1032                                    existing_repo.merge_message = merge_message;
1033                                    existing_repo.completed_scan_id = worktree.completed_scan_id();
1034                                }
1035                            });
1036                            existing_repo
1037                        } else {
1038                            cx.new(|_| Repository {
1039                                worktree_id: Some(worktree.id()),
1040                                project_environment: self
1041                                    .project_environment()
1042                                    .as_ref()
1043                                    .map(|env| env.downgrade()),
1044                                git_store: git_store.clone(),
1045                                askpass_delegates: Default::default(),
1046                                latest_askpass_id: 0,
1047                                repository_entry: repo_entry.clone(),
1048                                job_sender: self.update_sender.clone(),
1049                                merge_message,
1050                                commit_message_buffer: None,
1051                                completed_scan_id: worktree.completed_scan_id(),
1052                                state: git_repo,
1053                            })
1054                        };
1055
1056                        // TODO only send out messages for repository snapshots that have changed
1057                        let snapshot = repo.read(cx).repository_entry.clone();
1058                        if let GitStoreState::Local {
1059                            downstream_client: Some(state),
1060                            ..
1061                        } = &self.state
1062                        {
1063                            state
1064                                .updates_tx
1065                                .unbounded_send(DownstreamUpdate::UpdateRepository(snapshot))
1066                                .ok();
1067                        }
1068                        new_repositories.insert(repo_entry.work_directory_id(), repo);
1069                        self.repositories.remove(&repo_entry.work_directory_id());
1070                    }
1071                })
1072            }
1073        });
1074
1075        if let GitStoreState::Local {
1076            downstream_client: Some(state),
1077            ..
1078        } = &self.state
1079        {
1080            for id in self.repositories.keys().cloned() {
1081                state
1082                    .updates_tx
1083                    .unbounded_send(DownstreamUpdate::RemoveRepository(id))
1084                    .ok();
1085            }
1086        }
1087
1088        self.repositories = new_repositories;
1089        if let Some(id) = self.active_repo_id.as_ref() {
1090            if !self.repositories.contains_key(id) {
1091                self.active_repo_id = None;
1092            }
1093        } else if let Some(&first_id) = self.repositories.keys().next() {
1094            self.active_repo_id = Some(first_id);
1095        }
1096    }
1097
1098    fn on_buffer_store_event(
1099        &mut self,
1100        _: Entity<BufferStore>,
1101        event: &BufferStoreEvent,
1102        cx: &mut Context<Self>,
1103    ) {
1104        match event {
1105            BufferStoreEvent::BufferAdded(buffer) => {
1106                cx.subscribe(&buffer, |this, buffer, event, cx| {
1107                    if let BufferEvent::LanguageChanged = event {
1108                        let buffer_id = buffer.read(cx).remote_id();
1109                        if let Some(diff_state) = this.diffs.get(&buffer_id) {
1110                            diff_state.update(cx, |diff_state, cx| {
1111                                diff_state.buffer_language_changed(buffer, cx);
1112                            });
1113                        }
1114                    }
1115                })
1116                .detach();
1117            }
1118            BufferStoreEvent::SharedBufferClosed(peer_id, buffer_id) => {
1119                if let Some(diffs) = self.shared_diffs.get_mut(peer_id) {
1120                    diffs.remove(buffer_id);
1121                }
1122            }
1123            BufferStoreEvent::BufferDropped(buffer_id) => {
1124                self.diffs.remove(&buffer_id);
1125                for diffs in self.shared_diffs.values_mut() {
1126                    diffs.remove(buffer_id);
1127                }
1128            }
1129
1130            _ => {}
1131        }
1132    }
1133
1134    pub fn recalculate_buffer_diffs(
1135        &mut self,
1136        buffers: Vec<Entity<Buffer>>,
1137        cx: &mut Context<Self>,
1138    ) -> impl Future<Output = ()> {
1139        let mut futures = Vec::new();
1140        for buffer in buffers {
1141            if let Some(diff_state) = self.diffs.get_mut(&buffer.read(cx).remote_id()) {
1142                let buffer = buffer.read(cx).text_snapshot();
1143                futures.push(diff_state.update(cx, |diff_state, cx| {
1144                    diff_state.recalculate_diffs(
1145                        buffer,
1146                        diff_state.hunk_staging_operation_count,
1147                        cx,
1148                    )
1149                }));
1150            }
1151        }
1152        async move {
1153            futures::future::join_all(futures).await;
1154        }
1155    }
1156
1157    fn on_buffer_diff_event(
1158        &mut self,
1159        diff: Entity<buffer_diff::BufferDiff>,
1160        event: &BufferDiffEvent,
1161        cx: &mut Context<Self>,
1162    ) {
1163        if let BufferDiffEvent::HunksStagedOrUnstaged(new_index_text) = event {
1164            let buffer_id = diff.read(cx).buffer_id;
1165            if let Some(diff_state) = self.diffs.get(&buffer_id) {
1166                diff_state.update(cx, |diff_state, _| {
1167                    diff_state.hunk_staging_operation_count += 1;
1168                });
1169            }
1170            if let Some((repo, path)) = self.repository_and_path_for_buffer_id(buffer_id, cx) {
1171                let recv = repo.update(cx, |repo, cx| {
1172                    log::debug!("updating index text for buffer {}", path.display());
1173                    repo.spawn_set_index_text_job(
1174                        path,
1175                        new_index_text.as_ref().map(|rope| rope.to_string()),
1176                        cx,
1177                    )
1178                });
1179                let diff = diff.downgrade();
1180                cx.spawn(async move |this, cx| {
1181                    if let Ok(Err(error)) = cx.background_spawn(recv).await {
1182                        diff.update(cx, |diff, cx| {
1183                            diff.clear_pending_hunks(cx);
1184                        })
1185                        .ok();
1186                        this.update(cx, |_, cx| cx.emit(GitEvent::IndexWriteError(error)))
1187                            .ok();
1188                    }
1189                })
1190                .detach();
1191            }
1192        }
1193    }
1194
1195    fn local_worktree_git_repos_changed(
1196        &mut self,
1197        worktree: Entity<Worktree>,
1198        changed_repos: &UpdatedGitRepositoriesSet,
1199        cx: &mut Context<Self>,
1200    ) {
1201        debug_assert!(worktree.read(cx).is_local());
1202
1203        let Some(active_repo) = self.active_repository() else {
1204            log::error!("local worktree changed but we have no active repository");
1205            return;
1206        };
1207
1208        let mut diff_state_updates = HashMap::<ProjectEntryId, Vec<_>>::default();
1209        for (buffer_id, diff_state) in &self.diffs {
1210            let Some(buffer) = self.buffer_store.read(cx).get(*buffer_id) else {
1211                continue;
1212            };
1213            let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1214                continue;
1215            };
1216            if file.worktree != worktree {
1217                continue;
1218            }
1219            let Some(repo_id) = changed_repos
1220                .iter()
1221                .map(|(entry, _)| entry.id)
1222                .find(|repo_id| self.repositories().contains_key(&repo_id))
1223            else {
1224                continue;
1225            };
1226
1227            let diff_state = diff_state.read(cx);
1228            let has_unstaged_diff = diff_state
1229                .unstaged_diff
1230                .as_ref()
1231                .is_some_and(|diff| diff.is_upgradable());
1232            let has_uncommitted_diff = diff_state
1233                .uncommitted_diff
1234                .as_ref()
1235                .is_some_and(|set| set.is_upgradable());
1236
1237            let update = (
1238                buffer,
1239                file.path.clone(),
1240                has_unstaged_diff.then(|| diff_state.index_text.clone()),
1241                has_uncommitted_diff.then(|| diff_state.head_text.clone()),
1242                diff_state.hunk_staging_operation_count,
1243            );
1244            diff_state_updates.entry(repo_id).or_default().push(update);
1245        }
1246
1247        if diff_state_updates.is_empty() {
1248            return;
1249        }
1250
1251        for (repo_id, repo_diff_state_updates) in diff_state_updates.into_iter() {
1252            let worktree = worktree.downgrade();
1253            let git_store = cx.weak_entity();
1254
1255            let _ = active_repo.read(cx).send_keyed_job(
1256                Some(GitJobKey::BatchReadIndex(repo_id)),
1257                |_, mut cx| async move {
1258                    let snapshot = worktree.update(&mut cx, |tree, _| {
1259                        tree.as_local().map(|local_tree| local_tree.snapshot())
1260                    });
1261                    let Ok(Some(snapshot)) = snapshot else {
1262                        return;
1263                    };
1264
1265                    let mut diff_bases_changes_by_buffer = Vec::new();
1266                    for (
1267                        buffer,
1268                        path,
1269                        current_index_text,
1270                        current_head_text,
1271                        hunk_staging_operation_count,
1272                    ) in &repo_diff_state_updates
1273                    {
1274                        let Some(local_repo) = snapshot.local_repo_containing_path(&path) else {
1275                            continue;
1276                        };
1277                        let Some(relative_path) = local_repo.relativize(&path).ok() else {
1278                            continue;
1279                        };
1280
1281                        log::debug!("reloading git state for buffer {}", path.display());
1282                        let index_text = if current_index_text.is_some() {
1283                            local_repo
1284                                .repo()
1285                                .load_index_text(relative_path.clone())
1286                                .await
1287                        } else {
1288                            None
1289                        };
1290                        let head_text = if current_head_text.is_some() {
1291                            local_repo.repo().load_committed_text(relative_path).await
1292                        } else {
1293                            None
1294                        };
1295
1296                        // Avoid triggering a diff update if the base text has not changed.
1297                        if let Some((current_index, current_head)) =
1298                            current_index_text.as_ref().zip(current_head_text.as_ref())
1299                        {
1300                            if current_index.as_deref() == index_text.as_ref()
1301                                && current_head.as_deref() == head_text.as_ref()
1302                            {
1303                                continue;
1304                            }
1305                        }
1306
1307                        let diff_bases_change =
1308                            match (current_index_text.is_some(), current_head_text.is_some()) {
1309                                (true, true) => Some(if index_text == head_text {
1310                                    DiffBasesChange::SetBoth(head_text)
1311                                } else {
1312                                    DiffBasesChange::SetEach {
1313                                        index: index_text,
1314                                        head: head_text,
1315                                    }
1316                                }),
1317                                (true, false) => Some(DiffBasesChange::SetIndex(index_text)),
1318                                (false, true) => Some(DiffBasesChange::SetHead(head_text)),
1319                                (false, false) => None,
1320                            };
1321
1322                        diff_bases_changes_by_buffer.push((
1323                            buffer,
1324                            diff_bases_change,
1325                            *hunk_staging_operation_count,
1326                        ))
1327                    }
1328
1329                    git_store
1330                        .update(&mut cx, |git_store, cx| {
1331                            for (buffer, diff_bases_change, hunk_staging_operation_count) in
1332                                diff_bases_changes_by_buffer
1333                            {
1334                                let Some(diff_state) =
1335                                    git_store.diffs.get(&buffer.read(cx).remote_id())
1336                                else {
1337                                    continue;
1338                                };
1339                                let Some(diff_bases_change) = diff_bases_change else {
1340                                    continue;
1341                                };
1342
1343                                let downstream_client = git_store.downstream_client();
1344                                diff_state.update(cx, |diff_state, cx| {
1345                                    use proto::update_diff_bases::Mode;
1346
1347                                    let buffer = buffer.read(cx);
1348                                    if let Some((client, project_id)) = downstream_client {
1349                                        let (staged_text, committed_text, mode) =
1350                                            match diff_bases_change.clone() {
1351                                                DiffBasesChange::SetIndex(index) => {
1352                                                    (index, None, Mode::IndexOnly)
1353                                                }
1354                                                DiffBasesChange::SetHead(head) => {
1355                                                    (None, head, Mode::HeadOnly)
1356                                                }
1357                                                DiffBasesChange::SetEach { index, head } => {
1358                                                    (index, head, Mode::IndexAndHead)
1359                                                }
1360                                                DiffBasesChange::SetBoth(text) => {
1361                                                    (None, text, Mode::IndexMatchesHead)
1362                                                }
1363                                            };
1364                                        let message = proto::UpdateDiffBases {
1365                                            project_id: project_id.to_proto(),
1366                                            buffer_id: buffer.remote_id().to_proto(),
1367                                            staged_text,
1368                                            committed_text,
1369                                            mode: mode as i32,
1370                                        };
1371
1372                                        client.send(message).log_err();
1373                                    }
1374
1375                                    let _ = diff_state.diff_bases_changed(
1376                                        buffer.text_snapshot(),
1377                                        diff_bases_change,
1378                                        hunk_staging_operation_count,
1379                                        cx,
1380                                    );
1381                                });
1382                            }
1383                        })
1384                        .ok();
1385                },
1386            );
1387        }
1388    }
1389
1390    pub fn repositories(&self) -> &HashMap<ProjectEntryId, Entity<Repository>> {
1391        &self.repositories
1392    }
1393
1394    pub fn status_for_buffer_id(&self, buffer_id: BufferId, cx: &App) -> Option<FileStatus> {
1395        let (repo, path) = self.repository_and_path_for_buffer_id(buffer_id, cx)?;
1396        let status = repo.read(cx).repository_entry.status_for_path(&path)?;
1397        Some(status.status)
1398    }
1399
1400    pub fn repository_and_path_for_buffer_id(
1401        &self,
1402        buffer_id: BufferId,
1403        cx: &App,
1404    ) -> Option<(Entity<Repository>, RepoPath)> {
1405        let buffer = self.buffer_store.read(cx).get(buffer_id)?;
1406        let project_path = buffer.read(cx).project_path(cx)?;
1407        self.repository_and_path_for_project_path(&project_path, cx)
1408    }
1409
1410    pub fn repository_and_path_for_project_path(
1411        &self,
1412        path: &ProjectPath,
1413        cx: &App,
1414    ) -> Option<(Entity<Repository>, RepoPath)> {
1415        let abs_path = self.worktree_store.read(cx).absolutize(path, cx)?;
1416        self.repositories
1417            .values()
1418            .filter_map(|repo_handle| {
1419                let repo = repo_handle.read(cx);
1420                let relative_path = repo.repository_entry.relativize_abs_path(&abs_path)?;
1421                Some((repo_handle.clone(), relative_path))
1422            })
1423            .max_by_key(|(repo, _)| {
1424                repo.read(cx)
1425                    .repository_entry
1426                    .work_directory_abs_path
1427                    .clone()
1428            })
1429    }
1430
1431    fn spawn_git_worker(cx: &mut Context<GitStore>) -> mpsc::UnboundedSender<GitJob> {
1432        let (job_tx, mut job_rx) = mpsc::unbounded::<GitJob>();
1433
1434        cx.spawn(async move |_, cx| {
1435            let mut jobs = VecDeque::new();
1436            loop {
1437                while let Ok(Some(next_job)) = job_rx.try_next() {
1438                    jobs.push_back(next_job);
1439                }
1440
1441                if let Some(job) = jobs.pop_front() {
1442                    if let Some(current_key) = &job.key {
1443                        if jobs
1444                            .iter()
1445                            .any(|other_job| other_job.key.as_ref() == Some(current_key))
1446                        {
1447                            continue;
1448                        }
1449                    }
1450                    (job.job)(cx).await;
1451                } else if let Some(job) = job_rx.next().await {
1452                    jobs.push_back(job);
1453                } else {
1454                    break;
1455                }
1456            }
1457        })
1458        .detach();
1459        job_tx
1460    }
1461
1462    pub fn git_init(
1463        &self,
1464        path: Arc<Path>,
1465        fallback_branch_name: String,
1466        cx: &App,
1467    ) -> Task<Result<()>> {
1468        match &self.state {
1469            GitStoreState::Local { fs, .. } => {
1470                let fs = fs.clone();
1471                cx.background_executor()
1472                    .spawn(async move { fs.git_init(&path, fallback_branch_name) })
1473            }
1474            GitStoreState::Ssh {
1475                upstream_client,
1476                upstream_project_id: project_id,
1477                ..
1478            }
1479            | GitStoreState::Remote {
1480                upstream_client,
1481                project_id,
1482                ..
1483            } => {
1484                let client = upstream_client.clone();
1485                let project_id = *project_id;
1486                cx.background_executor().spawn(async move {
1487                    client
1488                        .request(proto::GitInit {
1489                            project_id: project_id.0,
1490                            abs_path: path.to_string_lossy().to_string(),
1491                            fallback_branch_name,
1492                        })
1493                        .await?;
1494                    Ok(())
1495                })
1496            }
1497        }
1498    }
1499
1500    async fn handle_update_repository(
1501        this: Entity<Self>,
1502        envelope: TypedEnvelope<proto::UpdateRepository>,
1503        mut cx: AsyncApp,
1504    ) -> Result<()> {
1505        this.update(&mut cx, |this, cx| {
1506            let mut update = envelope.payload;
1507
1508            let work_directory_id = ProjectEntryId::from_proto(update.id);
1509            let client = this
1510                .upstream_client()
1511                .context("no upstream client")?
1512                .clone();
1513
1514            let repo = this
1515                .repositories
1516                .entry(work_directory_id)
1517                .or_insert_with(|| {
1518                    let git_store = cx.weak_entity();
1519
1520                    cx.new(|_| Repository {
1521                        commit_message_buffer: None,
1522                        git_store,
1523                        project_environment: None,
1524                        worktree_id: None,
1525                        repository_entry: RepositoryEntry {
1526                            work_directory_id,
1527                            current_branch: None,
1528                            statuses_by_path: Default::default(),
1529                            current_merge_conflicts: Default::default(),
1530                            work_directory_abs_path: update.abs_path.clone().into(),
1531                            worktree_scan_id: update.scan_id as usize,
1532                        },
1533                        merge_message: None,
1534                        completed_scan_id: update.scan_id as usize,
1535                        state: RepositoryState::Remote {
1536                            project_id: ProjectId(update.project_id),
1537                            client,
1538                            work_directory_id,
1539                        },
1540                        job_sender: this.update_sender.clone(),
1541                        askpass_delegates: Default::default(),
1542                        latest_askpass_id: 0,
1543                    })
1544                });
1545
1546            repo.update(cx, |repo, _cx| repo.apply_remote_update(update.clone()))?;
1547            cx.emit(GitEvent::GitStateUpdated);
1548            this.active_repo_id.get_or_insert_with(|| {
1549                cx.emit(GitEvent::ActiveRepositoryChanged);
1550                work_directory_id
1551            });
1552
1553            if let Some((client, project_id)) = this.downstream_client() {
1554                update.project_id = project_id.to_proto();
1555                client.send(update).log_err();
1556            }
1557            Ok(())
1558        })?
1559    }
1560
1561    async fn handle_remove_repository(
1562        this: Entity<Self>,
1563        envelope: TypedEnvelope<proto::RemoveRepository>,
1564        mut cx: AsyncApp,
1565    ) -> Result<()> {
1566        this.update(&mut cx, |this, cx| {
1567            let mut update = envelope.payload;
1568            let id = ProjectEntryId::from_proto(update.id);
1569            this.repositories.remove(&id);
1570            if let Some((client, project_id)) = this.downstream_client() {
1571                update.project_id = project_id.to_proto();
1572                client.send(update).log_err();
1573            }
1574            if this.active_repo_id == Some(id) {
1575                this.active_repo_id = None;
1576                cx.emit(GitEvent::ActiveRepositoryChanged);
1577            }
1578            cx.emit(GitEvent::GitStateUpdated);
1579        })
1580    }
1581
1582    async fn handle_git_init(
1583        this: Entity<Self>,
1584        envelope: TypedEnvelope<proto::GitInit>,
1585        cx: AsyncApp,
1586    ) -> Result<proto::Ack> {
1587        let path: Arc<Path> = PathBuf::from(envelope.payload.abs_path).into();
1588        let name = envelope.payload.fallback_branch_name;
1589        cx.update(|cx| this.read(cx).git_init(path, name, cx))?
1590            .await?;
1591
1592        Ok(proto::Ack {})
1593    }
1594
1595    async fn handle_fetch(
1596        this: Entity<Self>,
1597        envelope: TypedEnvelope<proto::Fetch>,
1598        mut cx: AsyncApp,
1599    ) -> Result<proto::RemoteMessageResponse> {
1600        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1601        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1602        let askpass_id = envelope.payload.askpass_id;
1603
1604        let askpass = make_remote_delegate(
1605            this,
1606            envelope.payload.project_id,
1607            work_directory_id,
1608            askpass_id,
1609            &mut cx,
1610        );
1611
1612        let remote_output = repository_handle
1613            .update(&mut cx, |repository_handle, cx| {
1614                repository_handle.fetch(askpass, cx)
1615            })?
1616            .await??;
1617
1618        Ok(proto::RemoteMessageResponse {
1619            stdout: remote_output.stdout,
1620            stderr: remote_output.stderr,
1621        })
1622    }
1623
1624    async fn handle_push(
1625        this: Entity<Self>,
1626        envelope: TypedEnvelope<proto::Push>,
1627        mut cx: AsyncApp,
1628    ) -> Result<proto::RemoteMessageResponse> {
1629        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1630        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1631
1632        let askpass_id = envelope.payload.askpass_id;
1633        let askpass = make_remote_delegate(
1634            this,
1635            envelope.payload.project_id,
1636            work_directory_id,
1637            askpass_id,
1638            &mut cx,
1639        );
1640
1641        let options = envelope
1642            .payload
1643            .options
1644            .as_ref()
1645            .map(|_| match envelope.payload.options() {
1646                proto::push::PushOptions::SetUpstream => git::repository::PushOptions::SetUpstream,
1647                proto::push::PushOptions::Force => git::repository::PushOptions::Force,
1648            });
1649
1650        let branch_name = envelope.payload.branch_name.into();
1651        let remote_name = envelope.payload.remote_name.into();
1652
1653        let remote_output = repository_handle
1654            .update(&mut cx, |repository_handle, cx| {
1655                repository_handle.push(branch_name, remote_name, options, askpass, cx)
1656            })?
1657            .await??;
1658        Ok(proto::RemoteMessageResponse {
1659            stdout: remote_output.stdout,
1660            stderr: remote_output.stderr,
1661        })
1662    }
1663
1664    async fn handle_pull(
1665        this: Entity<Self>,
1666        envelope: TypedEnvelope<proto::Pull>,
1667        mut cx: AsyncApp,
1668    ) -> Result<proto::RemoteMessageResponse> {
1669        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1670        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1671        let askpass_id = envelope.payload.askpass_id;
1672        let askpass = make_remote_delegate(
1673            this,
1674            envelope.payload.project_id,
1675            work_directory_id,
1676            askpass_id,
1677            &mut cx,
1678        );
1679
1680        let branch_name = envelope.payload.branch_name.into();
1681        let remote_name = envelope.payload.remote_name.into();
1682
1683        let remote_message = repository_handle
1684            .update(&mut cx, |repository_handle, cx| {
1685                repository_handle.pull(branch_name, remote_name, askpass, cx)
1686            })?
1687            .await??;
1688
1689        Ok(proto::RemoteMessageResponse {
1690            stdout: remote_message.stdout,
1691            stderr: remote_message.stderr,
1692        })
1693    }
1694
1695    async fn handle_stage(
1696        this: Entity<Self>,
1697        envelope: TypedEnvelope<proto::Stage>,
1698        mut cx: AsyncApp,
1699    ) -> Result<proto::Ack> {
1700        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1701        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1702
1703        let entries = envelope
1704            .payload
1705            .paths
1706            .into_iter()
1707            .map(PathBuf::from)
1708            .map(RepoPath::new)
1709            .collect();
1710
1711        repository_handle
1712            .update(&mut cx, |repository_handle, cx| {
1713                repository_handle.stage_entries(entries, cx)
1714            })?
1715            .await?;
1716        Ok(proto::Ack {})
1717    }
1718
1719    async fn handle_unstage(
1720        this: Entity<Self>,
1721        envelope: TypedEnvelope<proto::Unstage>,
1722        mut cx: AsyncApp,
1723    ) -> Result<proto::Ack> {
1724        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1725        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1726
1727        let entries = envelope
1728            .payload
1729            .paths
1730            .into_iter()
1731            .map(PathBuf::from)
1732            .map(RepoPath::new)
1733            .collect();
1734
1735        repository_handle
1736            .update(&mut cx, |repository_handle, cx| {
1737                repository_handle.unstage_entries(entries, cx)
1738            })?
1739            .await?;
1740
1741        Ok(proto::Ack {})
1742    }
1743
1744    async fn handle_set_index_text(
1745        this: Entity<Self>,
1746        envelope: TypedEnvelope<proto::SetIndexText>,
1747        mut cx: AsyncApp,
1748    ) -> Result<proto::Ack> {
1749        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1750        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1751
1752        repository_handle
1753            .update(&mut cx, |repository_handle, cx| {
1754                repository_handle.spawn_set_index_text_job(
1755                    RepoPath::from_str(&envelope.payload.path),
1756                    envelope.payload.text,
1757                    cx,
1758                )
1759            })?
1760            .await??;
1761        Ok(proto::Ack {})
1762    }
1763
1764    async fn handle_commit(
1765        this: Entity<Self>,
1766        envelope: TypedEnvelope<proto::Commit>,
1767        mut cx: AsyncApp,
1768    ) -> Result<proto::Ack> {
1769        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1770        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1771
1772        let message = SharedString::from(envelope.payload.message);
1773        let name = envelope.payload.name.map(SharedString::from);
1774        let email = envelope.payload.email.map(SharedString::from);
1775
1776        repository_handle
1777            .update(&mut cx, |repository_handle, cx| {
1778                repository_handle.commit(message, name.zip(email), cx)
1779            })?
1780            .await??;
1781        Ok(proto::Ack {})
1782    }
1783
1784    async fn handle_get_remotes(
1785        this: Entity<Self>,
1786        envelope: TypedEnvelope<proto::GetRemotes>,
1787        mut cx: AsyncApp,
1788    ) -> Result<proto::GetRemotesResponse> {
1789        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1790        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1791
1792        let branch_name = envelope.payload.branch_name;
1793
1794        let remotes = repository_handle
1795            .update(&mut cx, |repository_handle, _| {
1796                repository_handle.get_remotes(branch_name)
1797            })?
1798            .await??;
1799
1800        Ok(proto::GetRemotesResponse {
1801            remotes: remotes
1802                .into_iter()
1803                .map(|remotes| proto::get_remotes_response::Remote {
1804                    name: remotes.name.to_string(),
1805                })
1806                .collect::<Vec<_>>(),
1807        })
1808    }
1809
1810    async fn handle_get_branches(
1811        this: Entity<Self>,
1812        envelope: TypedEnvelope<proto::GitGetBranches>,
1813        mut cx: AsyncApp,
1814    ) -> Result<proto::GitBranchesResponse> {
1815        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1816        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1817
1818        let branches = repository_handle
1819            .update(&mut cx, |repository_handle, _| repository_handle.branches())?
1820            .await??;
1821
1822        Ok(proto::GitBranchesResponse {
1823            branches: branches
1824                .into_iter()
1825                .map(|branch| worktree::branch_to_proto(&branch))
1826                .collect::<Vec<_>>(),
1827        })
1828    }
1829    async fn handle_create_branch(
1830        this: Entity<Self>,
1831        envelope: TypedEnvelope<proto::GitCreateBranch>,
1832        mut cx: AsyncApp,
1833    ) -> Result<proto::Ack> {
1834        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1835        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1836        let branch_name = envelope.payload.branch_name;
1837
1838        repository_handle
1839            .update(&mut cx, |repository_handle, _| {
1840                repository_handle.create_branch(branch_name)
1841            })?
1842            .await??;
1843
1844        Ok(proto::Ack {})
1845    }
1846
1847    async fn handle_change_branch(
1848        this: Entity<Self>,
1849        envelope: TypedEnvelope<proto::GitChangeBranch>,
1850        mut cx: AsyncApp,
1851    ) -> Result<proto::Ack> {
1852        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1853        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1854        let branch_name = envelope.payload.branch_name;
1855
1856        repository_handle
1857            .update(&mut cx, |repository_handle, _| {
1858                repository_handle.change_branch(branch_name)
1859            })?
1860            .await??;
1861
1862        Ok(proto::Ack {})
1863    }
1864
1865    async fn handle_show(
1866        this: Entity<Self>,
1867        envelope: TypedEnvelope<proto::GitShow>,
1868        mut cx: AsyncApp,
1869    ) -> Result<proto::GitCommitDetails> {
1870        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1871        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1872
1873        let commit = repository_handle
1874            .update(&mut cx, |repository_handle, _| {
1875                repository_handle.show(envelope.payload.commit)
1876            })?
1877            .await??;
1878        Ok(proto::GitCommitDetails {
1879            sha: commit.sha.into(),
1880            message: commit.message.into(),
1881            commit_timestamp: commit.commit_timestamp,
1882            committer_email: commit.committer_email.into(),
1883            committer_name: commit.committer_name.into(),
1884        })
1885    }
1886
1887    async fn handle_reset(
1888        this: Entity<Self>,
1889        envelope: TypedEnvelope<proto::GitReset>,
1890        mut cx: AsyncApp,
1891    ) -> Result<proto::Ack> {
1892        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1893        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1894
1895        let mode = match envelope.payload.mode() {
1896            git_reset::ResetMode::Soft => ResetMode::Soft,
1897            git_reset::ResetMode::Mixed => ResetMode::Mixed,
1898        };
1899
1900        repository_handle
1901            .update(&mut cx, |repository_handle, cx| {
1902                repository_handle.reset(envelope.payload.commit, mode, cx)
1903            })?
1904            .await??;
1905        Ok(proto::Ack {})
1906    }
1907
1908    async fn handle_checkout_files(
1909        this: Entity<Self>,
1910        envelope: TypedEnvelope<proto::GitCheckoutFiles>,
1911        mut cx: AsyncApp,
1912    ) -> Result<proto::Ack> {
1913        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1914        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1915        let paths = envelope
1916            .payload
1917            .paths
1918            .iter()
1919            .map(|s| RepoPath::from_str(s))
1920            .collect();
1921
1922        repository_handle
1923            .update(&mut cx, |repository_handle, cx| {
1924                repository_handle.checkout_files(&envelope.payload.commit, paths, cx)
1925            })?
1926            .await??;
1927        Ok(proto::Ack {})
1928    }
1929
1930    async fn handle_open_commit_message_buffer(
1931        this: Entity<Self>,
1932        envelope: TypedEnvelope<proto::OpenCommitMessageBuffer>,
1933        mut cx: AsyncApp,
1934    ) -> Result<proto::OpenBufferResponse> {
1935        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1936        let repository = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1937        let buffer = repository
1938            .update(&mut cx, |repository, cx| {
1939                repository.open_commit_buffer(None, this.read(cx).buffer_store.clone(), cx)
1940            })?
1941            .await?;
1942
1943        let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id())?;
1944        this.update(&mut cx, |this, cx| {
1945            this.buffer_store.update(cx, |buffer_store, cx| {
1946                buffer_store
1947                    .create_buffer_for_peer(
1948                        &buffer,
1949                        envelope.original_sender_id.unwrap_or(envelope.sender_id),
1950                        cx,
1951                    )
1952                    .detach_and_log_err(cx);
1953            })
1954        })?;
1955
1956        Ok(proto::OpenBufferResponse {
1957            buffer_id: buffer_id.to_proto(),
1958        })
1959    }
1960
1961    async fn handle_askpass(
1962        this: Entity<Self>,
1963        envelope: TypedEnvelope<proto::AskPassRequest>,
1964        mut cx: AsyncApp,
1965    ) -> Result<proto::AskPassResponse> {
1966        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1967        let repository = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1968
1969        let delegates = cx.update(|cx| repository.read(cx).askpass_delegates.clone())?;
1970        let Some(mut askpass) = delegates.lock().remove(&envelope.payload.askpass_id) else {
1971            debug_panic!("no askpass found");
1972            return Err(anyhow::anyhow!("no askpass found"));
1973        };
1974
1975        let response = askpass.ask_password(envelope.payload.prompt).await?;
1976
1977        delegates
1978            .lock()
1979            .insert(envelope.payload.askpass_id, askpass);
1980
1981        Ok(proto::AskPassResponse { response })
1982    }
1983
1984    async fn handle_check_for_pushed_commits(
1985        this: Entity<Self>,
1986        envelope: TypedEnvelope<proto::CheckForPushedCommits>,
1987        mut cx: AsyncApp,
1988    ) -> Result<proto::CheckForPushedCommitsResponse> {
1989        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
1990        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
1991
1992        let branches = repository_handle
1993            .update(&mut cx, |repository_handle, _| {
1994                repository_handle.check_for_pushed_commits()
1995            })?
1996            .await??;
1997        Ok(proto::CheckForPushedCommitsResponse {
1998            pushed_to: branches
1999                .into_iter()
2000                .map(|commit| commit.to_string())
2001                .collect(),
2002        })
2003    }
2004
2005    async fn handle_git_diff(
2006        this: Entity<Self>,
2007        envelope: TypedEnvelope<proto::GitDiff>,
2008        mut cx: AsyncApp,
2009    ) -> Result<proto::GitDiffResponse> {
2010        let work_directory_id = ProjectEntryId::from_proto(envelope.payload.work_directory_id);
2011        let repository_handle = Self::repository_for_request(&this, work_directory_id, &mut cx)?;
2012        let diff_type = match envelope.payload.diff_type() {
2013            proto::git_diff::DiffType::HeadToIndex => DiffType::HeadToIndex,
2014            proto::git_diff::DiffType::HeadToWorktree => DiffType::HeadToWorktree,
2015        };
2016
2017        let mut diff = repository_handle
2018            .update(&mut cx, |repository_handle, cx| {
2019                repository_handle.diff(diff_type, cx)
2020            })?
2021            .await??;
2022        const ONE_MB: usize = 1_000_000;
2023        if diff.len() > ONE_MB {
2024            diff = diff.chars().take(ONE_MB).collect()
2025        }
2026
2027        Ok(proto::GitDiffResponse { diff })
2028    }
2029
2030    async fn handle_open_unstaged_diff(
2031        this: Entity<Self>,
2032        request: TypedEnvelope<proto::OpenUnstagedDiff>,
2033        mut cx: AsyncApp,
2034    ) -> Result<proto::OpenUnstagedDiffResponse> {
2035        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2036        let diff = this
2037            .update(&mut cx, |this, cx| {
2038                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2039                Some(this.open_unstaged_diff(buffer, cx))
2040            })?
2041            .ok_or_else(|| anyhow!("no such buffer"))?
2042            .await?;
2043        this.update(&mut cx, |this, _| {
2044            let shared_diffs = this
2045                .shared_diffs
2046                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2047                .or_default();
2048            shared_diffs.entry(buffer_id).or_default().unstaged = Some(diff.clone());
2049        })?;
2050        let staged_text = diff.read_with(&cx, |diff, _| diff.base_text_string())?;
2051        Ok(proto::OpenUnstagedDiffResponse { staged_text })
2052    }
2053
2054    async fn handle_open_uncommitted_diff(
2055        this: Entity<Self>,
2056        request: TypedEnvelope<proto::OpenUncommittedDiff>,
2057        mut cx: AsyncApp,
2058    ) -> Result<proto::OpenUncommittedDiffResponse> {
2059        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2060        let diff = this
2061            .update(&mut cx, |this, cx| {
2062                let buffer = this.buffer_store.read(cx).get(buffer_id)?;
2063                Some(this.open_uncommitted_diff(buffer, cx))
2064            })?
2065            .ok_or_else(|| anyhow!("no such buffer"))?
2066            .await?;
2067        this.update(&mut cx, |this, _| {
2068            let shared_diffs = this
2069                .shared_diffs
2070                .entry(request.original_sender_id.unwrap_or(request.sender_id))
2071                .or_default();
2072            shared_diffs.entry(buffer_id).or_default().uncommitted = Some(diff.clone());
2073        })?;
2074        diff.read_with(&cx, |diff, cx| {
2075            use proto::open_uncommitted_diff_response::Mode;
2076
2077            let unstaged_diff = diff.secondary_diff();
2078            let index_snapshot = unstaged_diff.and_then(|diff| {
2079                let diff = diff.read(cx);
2080                diff.base_text_exists().then(|| diff.base_text())
2081            });
2082
2083            let mode;
2084            let staged_text;
2085            let committed_text;
2086            if diff.base_text_exists() {
2087                let committed_snapshot = diff.base_text();
2088                committed_text = Some(committed_snapshot.text());
2089                if let Some(index_text) = index_snapshot {
2090                    if index_text.remote_id() == committed_snapshot.remote_id() {
2091                        mode = Mode::IndexMatchesHead;
2092                        staged_text = None;
2093                    } else {
2094                        mode = Mode::IndexAndHead;
2095                        staged_text = Some(index_text.text());
2096                    }
2097                } else {
2098                    mode = Mode::IndexAndHead;
2099                    staged_text = None;
2100                }
2101            } else {
2102                mode = Mode::IndexAndHead;
2103                committed_text = None;
2104                staged_text = index_snapshot.as_ref().map(|buffer| buffer.text());
2105            }
2106
2107            proto::OpenUncommittedDiffResponse {
2108                committed_text,
2109                staged_text,
2110                mode: mode.into(),
2111            }
2112        })
2113    }
2114
2115    async fn handle_update_diff_bases(
2116        this: Entity<Self>,
2117        request: TypedEnvelope<proto::UpdateDiffBases>,
2118        mut cx: AsyncApp,
2119    ) -> Result<()> {
2120        let buffer_id = BufferId::new(request.payload.buffer_id)?;
2121        this.update(&mut cx, |this, cx| {
2122            if let Some(diff_state) = this.diffs.get_mut(&buffer_id) {
2123                if let Some(buffer) = this.buffer_store.read(cx).get(buffer_id) {
2124                    let buffer = buffer.read(cx).text_snapshot();
2125                    diff_state.update(cx, |diff_state, cx| {
2126                        diff_state.handle_base_texts_updated(buffer, request.payload, cx);
2127                    })
2128                }
2129            }
2130        })
2131    }
2132
2133    async fn handle_blame_buffer(
2134        this: Entity<Self>,
2135        envelope: TypedEnvelope<proto::BlameBuffer>,
2136        mut cx: AsyncApp,
2137    ) -> Result<proto::BlameBufferResponse> {
2138        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
2139        let version = deserialize_version(&envelope.payload.version);
2140        let buffer = this.read_with(&cx, |this, cx| {
2141            this.buffer_store.read(cx).get_existing(buffer_id)
2142        })??;
2143        buffer
2144            .update(&mut cx, |buffer, _| {
2145                buffer.wait_for_version(version.clone())
2146            })?
2147            .await?;
2148        let blame = this
2149            .update(&mut cx, |this, cx| {
2150                this.blame_buffer(&buffer, Some(version), cx)
2151            })?
2152            .await?;
2153        Ok(serialize_blame_buffer_response(blame))
2154    }
2155
2156    async fn handle_get_permalink_to_line(
2157        this: Entity<Self>,
2158        envelope: TypedEnvelope<proto::GetPermalinkToLine>,
2159        mut cx: AsyncApp,
2160    ) -> Result<proto::GetPermalinkToLineResponse> {
2161        let buffer_id = BufferId::new(envelope.payload.buffer_id)?;
2162        // let version = deserialize_version(&envelope.payload.version);
2163        let selection = {
2164            let proto_selection = envelope
2165                .payload
2166                .selection
2167                .context("no selection to get permalink for defined")?;
2168            proto_selection.start as u32..proto_selection.end as u32
2169        };
2170        let buffer = this.read_with(&cx, |this, cx| {
2171            this.buffer_store.read(cx).get_existing(buffer_id)
2172        })??;
2173        let permalink = this
2174            .update(&mut cx, |this, cx| {
2175                this.get_permalink_to_line(&buffer, selection, cx)
2176            })?
2177            .await?;
2178        Ok(proto::GetPermalinkToLineResponse {
2179            permalink: permalink.to_string(),
2180        })
2181    }
2182
2183    fn repository_for_request(
2184        this: &Entity<Self>,
2185        work_directory_id: ProjectEntryId,
2186        cx: &mut AsyncApp,
2187    ) -> Result<Entity<Repository>> {
2188        this.update(cx, |this, cx| {
2189            this.repositories
2190                .values()
2191                .find(|repository_handle| {
2192                    repository_handle
2193                        .read(cx)
2194                        .repository_entry
2195                        .work_directory_id()
2196                        == work_directory_id
2197                })
2198                .context("missing repository handle")
2199                .cloned()
2200        })?
2201    }
2202
2203    pub fn repo_snapshots(&self, cx: &App) -> HashMap<ProjectEntryId, RepositoryEntry> {
2204        self.repositories
2205            .iter()
2206            .map(|(id, repo)| (*id, repo.read(cx).repository_entry.clone()))
2207            .collect()
2208    }
2209}
2210
2211impl BufferDiffState {
2212    fn buffer_language_changed(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
2213        self.language = buffer.read(cx).language().cloned();
2214        self.language_changed = true;
2215        let _ = self.recalculate_diffs(
2216            buffer.read(cx).text_snapshot(),
2217            self.hunk_staging_operation_count,
2218            cx,
2219        );
2220    }
2221
2222    fn unstaged_diff(&self) -> Option<Entity<BufferDiff>> {
2223        self.unstaged_diff.as_ref().and_then(|set| set.upgrade())
2224    }
2225
2226    fn uncommitted_diff(&self) -> Option<Entity<BufferDiff>> {
2227        self.uncommitted_diff.as_ref().and_then(|set| set.upgrade())
2228    }
2229
2230    fn handle_base_texts_updated(
2231        &mut self,
2232        buffer: text::BufferSnapshot,
2233        message: proto::UpdateDiffBases,
2234        cx: &mut Context<Self>,
2235    ) {
2236        use proto::update_diff_bases::Mode;
2237
2238        let Some(mode) = Mode::from_i32(message.mode) else {
2239            return;
2240        };
2241
2242        let diff_bases_change = match mode {
2243            Mode::HeadOnly => DiffBasesChange::SetHead(message.committed_text),
2244            Mode::IndexOnly => DiffBasesChange::SetIndex(message.staged_text),
2245            Mode::IndexMatchesHead => DiffBasesChange::SetBoth(message.committed_text),
2246            Mode::IndexAndHead => DiffBasesChange::SetEach {
2247                index: message.staged_text,
2248                head: message.committed_text,
2249            },
2250        };
2251
2252        let _ = self.diff_bases_changed(
2253            buffer,
2254            diff_bases_change,
2255            self.hunk_staging_operation_count,
2256            cx,
2257        );
2258    }
2259
2260    pub fn wait_for_recalculation(&mut self) -> Option<oneshot::Receiver<()>> {
2261        if self.diff_updated_futures.is_empty() {
2262            return None;
2263        }
2264        let (tx, rx) = oneshot::channel();
2265        self.diff_updated_futures.push(tx);
2266        Some(rx)
2267    }
2268
2269    fn diff_bases_changed(
2270        &mut self,
2271        buffer: text::BufferSnapshot,
2272        diff_bases_change: DiffBasesChange,
2273        prev_hunk_staging_operation_count: usize,
2274        cx: &mut Context<Self>,
2275    ) -> oneshot::Receiver<()> {
2276        match diff_bases_change {
2277            DiffBasesChange::SetIndex(index) => {
2278                self.index_text = index.map(|mut index| {
2279                    text::LineEnding::normalize(&mut index);
2280                    Arc::new(index)
2281                });
2282                self.index_changed = true;
2283            }
2284            DiffBasesChange::SetHead(head) => {
2285                self.head_text = head.map(|mut head| {
2286                    text::LineEnding::normalize(&mut head);
2287                    Arc::new(head)
2288                });
2289                self.head_changed = true;
2290            }
2291            DiffBasesChange::SetBoth(text) => {
2292                let text = text.map(|mut text| {
2293                    text::LineEnding::normalize(&mut text);
2294                    Arc::new(text)
2295                });
2296                self.head_text = text.clone();
2297                self.index_text = text;
2298                self.head_changed = true;
2299                self.index_changed = true;
2300            }
2301            DiffBasesChange::SetEach { index, head } => {
2302                self.index_text = index.map(|mut index| {
2303                    text::LineEnding::normalize(&mut index);
2304                    Arc::new(index)
2305                });
2306                self.index_changed = true;
2307                self.head_text = head.map(|mut head| {
2308                    text::LineEnding::normalize(&mut head);
2309                    Arc::new(head)
2310                });
2311                self.head_changed = true;
2312            }
2313        }
2314
2315        self.recalculate_diffs(buffer, prev_hunk_staging_operation_count, cx)
2316    }
2317
2318    fn recalculate_diffs(
2319        &mut self,
2320        buffer: text::BufferSnapshot,
2321        prev_hunk_staging_operation_count: usize,
2322        cx: &mut Context<Self>,
2323    ) -> oneshot::Receiver<()> {
2324        log::debug!("recalculate diffs");
2325        let (tx, rx) = oneshot::channel();
2326        self.diff_updated_futures.push(tx);
2327
2328        let language = self.language.clone();
2329        let language_registry = self.language_registry.clone();
2330        let unstaged_diff = self.unstaged_diff();
2331        let uncommitted_diff = self.uncommitted_diff();
2332        let head = self.head_text.clone();
2333        let index = self.index_text.clone();
2334        let index_changed = self.index_changed;
2335        let head_changed = self.head_changed;
2336        let language_changed = self.language_changed;
2337        let index_matches_head = match (self.index_text.as_ref(), self.head_text.as_ref()) {
2338            (Some(index), Some(head)) => Arc::ptr_eq(index, head),
2339            (None, None) => true,
2340            _ => false,
2341        };
2342        self.recalculate_diff_task = Some(cx.spawn(async move |this, cx| {
2343            let mut new_unstaged_diff = None;
2344            if let Some(unstaged_diff) = &unstaged_diff {
2345                new_unstaged_diff = Some(
2346                    BufferDiff::update_diff(
2347                        unstaged_diff.clone(),
2348                        buffer.clone(),
2349                        index,
2350                        index_changed,
2351                        language_changed,
2352                        language.clone(),
2353                        language_registry.clone(),
2354                        cx,
2355                    )
2356                    .await?,
2357                );
2358            }
2359
2360            let mut new_uncommitted_diff = None;
2361            if let Some(uncommitted_diff) = &uncommitted_diff {
2362                new_uncommitted_diff = if index_matches_head {
2363                    new_unstaged_diff.clone()
2364                } else {
2365                    Some(
2366                        BufferDiff::update_diff(
2367                            uncommitted_diff.clone(),
2368                            buffer.clone(),
2369                            head,
2370                            head_changed,
2371                            language_changed,
2372                            language.clone(),
2373                            language_registry.clone(),
2374                            cx,
2375                        )
2376                        .await?,
2377                    )
2378                }
2379            }
2380
2381            if this.update(cx, |this, _| {
2382                this.hunk_staging_operation_count > prev_hunk_staging_operation_count
2383            })? {
2384                return Ok(());
2385            }
2386
2387            let unstaged_changed_range = if let Some((unstaged_diff, new_unstaged_diff)) =
2388                unstaged_diff.as_ref().zip(new_unstaged_diff.clone())
2389            {
2390                unstaged_diff.update(cx, |diff, cx| {
2391                    diff.set_snapshot(&buffer, new_unstaged_diff, language_changed, None, cx)
2392                })?
2393            } else {
2394                None
2395            };
2396
2397            if let Some((uncommitted_diff, new_uncommitted_diff)) =
2398                uncommitted_diff.as_ref().zip(new_uncommitted_diff.clone())
2399            {
2400                uncommitted_diff.update(cx, |uncommitted_diff, cx| {
2401                    uncommitted_diff.set_snapshot(
2402                        &buffer,
2403                        new_uncommitted_diff,
2404                        language_changed,
2405                        unstaged_changed_range,
2406                        cx,
2407                    );
2408                })?;
2409            }
2410
2411            if let Some(this) = this.upgrade() {
2412                this.update(cx, |this, _| {
2413                    this.index_changed = false;
2414                    this.head_changed = false;
2415                    this.language_changed = false;
2416                    for tx in this.diff_updated_futures.drain(..) {
2417                        tx.send(()).ok();
2418                    }
2419                })?;
2420            }
2421
2422            Ok(())
2423        }));
2424
2425        rx
2426    }
2427}
2428
2429fn make_remote_delegate(
2430    this: Entity<GitStore>,
2431    project_id: u64,
2432    work_directory_id: ProjectEntryId,
2433    askpass_id: u64,
2434    cx: &mut AsyncApp,
2435) -> AskPassDelegate {
2436    AskPassDelegate::new(cx, move |prompt, tx, cx| {
2437        this.update(cx, |this, cx| {
2438            let Some((client, _)) = this.downstream_client() else {
2439                return;
2440            };
2441            let response = client.request(proto::AskPassRequest {
2442                project_id,
2443                work_directory_id: work_directory_id.to_proto(),
2444                askpass_id,
2445                prompt,
2446            });
2447            cx.spawn(async move |_, _| {
2448                tx.send(response.await?.response).ok();
2449                anyhow::Ok(())
2450            })
2451            .detach_and_log_err(cx);
2452        })
2453        .log_err();
2454    })
2455}
2456
2457impl GitStoreState {
2458    fn load_staged_text(
2459        &self,
2460        buffer: &Entity<Buffer>,
2461        buffer_store: &Entity<BufferStore>,
2462        cx: &App,
2463    ) -> Task<Result<Option<String>>> {
2464        match self {
2465            GitStoreState::Local { .. } => {
2466                if let Some((worktree, path)) =
2467                    buffer_store.read(cx).worktree_for_buffer(buffer, cx)
2468                {
2469                    worktree.read(cx).load_staged_file(path.as_ref(), cx)
2470                } else {
2471                    return Task::ready(Err(anyhow!("no such worktree")));
2472                }
2473            }
2474            GitStoreState::Ssh {
2475                upstream_client,
2476                upstream_project_id: project_id,
2477                ..
2478            }
2479            | GitStoreState::Remote {
2480                upstream_client,
2481                project_id,
2482            } => {
2483                let buffer_id = buffer.read(cx).remote_id();
2484                let project_id = *project_id;
2485                let client = upstream_client.clone();
2486                cx.background_spawn(async move {
2487                    let response = client
2488                        .request(proto::OpenUnstagedDiff {
2489                            project_id: project_id.to_proto(),
2490                            buffer_id: buffer_id.to_proto(),
2491                        })
2492                        .await?;
2493                    Ok(response.staged_text)
2494                })
2495            }
2496        }
2497    }
2498
2499    fn load_committed_text(
2500        &self,
2501        buffer: &Entity<Buffer>,
2502        buffer_store: &Entity<BufferStore>,
2503        cx: &App,
2504    ) -> Task<Result<DiffBasesChange>> {
2505        match self {
2506            GitStoreState::Local { .. } => {
2507                if let Some((worktree, path)) =
2508                    buffer_store.read(cx).worktree_for_buffer(buffer, cx)
2509                {
2510                    let worktree = worktree.read(cx);
2511                    let committed_text = worktree.load_committed_file(&path, cx);
2512                    let staged_text = worktree.load_staged_file(&path, cx);
2513                    cx.background_spawn(async move {
2514                        let committed_text = committed_text.await?;
2515                        let staged_text = staged_text.await?;
2516                        let diff_bases_change = if committed_text == staged_text {
2517                            DiffBasesChange::SetBoth(committed_text)
2518                        } else {
2519                            DiffBasesChange::SetEach {
2520                                index: staged_text,
2521                                head: committed_text,
2522                            }
2523                        };
2524                        Ok(diff_bases_change)
2525                    })
2526                } else {
2527                    Task::ready(Err(anyhow!("no such worktree")))
2528                }
2529            }
2530            GitStoreState::Ssh {
2531                upstream_client,
2532                upstream_project_id: project_id,
2533                ..
2534            }
2535            | GitStoreState::Remote {
2536                upstream_client,
2537                project_id,
2538            } => {
2539                use proto::open_uncommitted_diff_response::Mode;
2540
2541                let buffer_id = buffer.read(cx).remote_id();
2542                let project_id = *project_id;
2543                let client = upstream_client.clone();
2544                cx.background_spawn(async move {
2545                    let response = client
2546                        .request(proto::OpenUncommittedDiff {
2547                            project_id: project_id.to_proto(),
2548                            buffer_id: buffer_id.to_proto(),
2549                        })
2550                        .await?;
2551                    let mode =
2552                        Mode::from_i32(response.mode).ok_or_else(|| anyhow!("Invalid mode"))?;
2553                    let bases = match mode {
2554                        Mode::IndexMatchesHead => DiffBasesChange::SetBoth(response.committed_text),
2555                        Mode::IndexAndHead => DiffBasesChange::SetEach {
2556                            head: response.committed_text,
2557                            index: response.staged_text,
2558                        },
2559                    };
2560                    Ok(bases)
2561                })
2562            }
2563        }
2564    }
2565}
2566
2567impl Repository {
2568    pub fn git_store(&self) -> Option<Entity<GitStore>> {
2569        self.git_store.upgrade()
2570    }
2571
2572    fn id(&self) -> ProjectEntryId {
2573        self.repository_entry.work_directory_id()
2574    }
2575
2576    pub fn current_branch(&self) -> Option<&Branch> {
2577        self.repository_entry.branch()
2578    }
2579
2580    pub fn status_for_path(&self, path: &RepoPath) -> Option<StatusEntry> {
2581        self.repository_entry.status_for_path(path)
2582    }
2583
2584    fn send_job<F, Fut, R>(&self, job: F) -> oneshot::Receiver<R>
2585    where
2586        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
2587        Fut: Future<Output = R> + 'static,
2588        R: Send + 'static,
2589    {
2590        self.send_keyed_job(None, job)
2591    }
2592
2593    fn send_keyed_job<F, Fut, R>(&self, key: Option<GitJobKey>, job: F) -> oneshot::Receiver<R>
2594    where
2595        F: FnOnce(RepositoryState, AsyncApp) -> Fut + 'static,
2596        Fut: Future<Output = R> + 'static,
2597        R: Send + 'static,
2598    {
2599        let (result_tx, result_rx) = futures::channel::oneshot::channel();
2600        let git_repo = self.state.clone();
2601        self.job_sender
2602            .unbounded_send(GitJob {
2603                key,
2604                job: Box::new(|cx: &mut AsyncApp| {
2605                    let job = job(git_repo, cx.clone());
2606                    cx.spawn(async move |_| {
2607                        let result = job.await;
2608                        result_tx.send(result).ok();
2609                    })
2610                }),
2611            })
2612            .ok();
2613        result_rx
2614    }
2615
2616    /// This is the name that will be displayed in the repository selector for this repository.
2617    pub fn display_name(&self) -> SharedString {
2618        self.repository_entry
2619            .work_directory_abs_path
2620            .file_name()
2621            .unwrap_or_default()
2622            .to_string_lossy()
2623            .to_string()
2624            .into()
2625    }
2626
2627    pub fn set_as_active_repository(&self, cx: &mut Context<Self>) {
2628        let Some(git_store) = self.git_store.upgrade() else {
2629            return;
2630        };
2631        let entity = cx.entity();
2632        git_store.update(cx, |git_store, cx| {
2633            let Some((&id, _)) = git_store
2634                .repositories
2635                .iter()
2636                .find(|(_, handle)| *handle == &entity)
2637            else {
2638                return;
2639            };
2640            git_store.active_repo_id = Some(id);
2641            cx.emit(GitEvent::ActiveRepositoryChanged);
2642        });
2643    }
2644
2645    pub fn status(&self) -> impl '_ + Iterator<Item = StatusEntry> {
2646        self.repository_entry.status()
2647    }
2648
2649    pub fn has_conflict(&self, path: &RepoPath) -> bool {
2650        self.repository_entry
2651            .current_merge_conflicts
2652            .contains(&path)
2653    }
2654
2655    pub fn repo_path_to_project_path(&self, path: &RepoPath, cx: &App) -> Option<ProjectPath> {
2656        let git_store = self.git_store.upgrade()?;
2657        let worktree_store = git_store.read(cx).worktree_store.read(cx);
2658        let abs_path = self.repository_entry.work_directory_abs_path.join(&path.0);
2659        let (worktree, relative_path) = worktree_store.find_worktree(abs_path, cx)?;
2660        Some(ProjectPath {
2661            worktree_id: worktree.read(cx).id(),
2662            path: relative_path.into(),
2663        })
2664    }
2665
2666    pub fn project_path_to_repo_path(&self, path: &ProjectPath, cx: &App) -> Option<RepoPath> {
2667        let git_store = self.git_store.upgrade()?;
2668        let worktree_store = git_store.read(cx).worktree_store.read(cx);
2669        let abs_path = worktree_store.absolutize(path, cx)?;
2670        self.repository_entry.relativize_abs_path(&abs_path)
2671    }
2672
2673    pub fn contains_sub_repo(&self, other: &Entity<Self>, cx: &App) -> bool {
2674        other
2675            .read(cx)
2676            .repository_entry
2677            .work_directory_abs_path
2678            .starts_with(&self.repository_entry.work_directory_abs_path)
2679    }
2680
2681    pub fn local_repository(&self) -> Option<Arc<dyn GitRepository>> {
2682        match &self.state {
2683            RepositoryState::Local(git_repository) => Some(git_repository.clone()),
2684            RepositoryState::Remote { .. } => None,
2685        }
2686    }
2687
2688    pub fn open_commit_buffer(
2689        &mut self,
2690        languages: Option<Arc<LanguageRegistry>>,
2691        buffer_store: Entity<BufferStore>,
2692        cx: &mut Context<Self>,
2693    ) -> Task<Result<Entity<Buffer>>> {
2694        if let Some(buffer) = self.commit_message_buffer.clone() {
2695            return Task::ready(Ok(buffer));
2696        }
2697
2698        if let RepositoryState::Remote {
2699            project_id,
2700            client,
2701            work_directory_id,
2702        } = self.state.clone()
2703        {
2704            let client = client.clone();
2705            cx.spawn(async move |repository, cx| {
2706                let request = client.request(proto::OpenCommitMessageBuffer {
2707                    project_id: project_id.0,
2708                    work_directory_id: work_directory_id.to_proto(),
2709                });
2710                let response = request.await.context("requesting to open commit buffer")?;
2711                let buffer_id = BufferId::new(response.buffer_id)?;
2712                let buffer = buffer_store
2713                    .update(cx, |buffer_store, cx| {
2714                        buffer_store.wait_for_remote_buffer(buffer_id, cx)
2715                    })?
2716                    .await?;
2717                if let Some(language_registry) = languages {
2718                    let git_commit_language =
2719                        language_registry.language_for_name("Git Commit").await?;
2720                    buffer.update(cx, |buffer, cx| {
2721                        buffer.set_language(Some(git_commit_language), cx);
2722                    })?;
2723                }
2724                repository.update(cx, |repository, _| {
2725                    repository.commit_message_buffer = Some(buffer.clone());
2726                })?;
2727                Ok(buffer)
2728            })
2729        } else {
2730            self.open_local_commit_buffer(languages, buffer_store, cx)
2731        }
2732    }
2733
2734    fn open_local_commit_buffer(
2735        &mut self,
2736        language_registry: Option<Arc<LanguageRegistry>>,
2737        buffer_store: Entity<BufferStore>,
2738        cx: &mut Context<Self>,
2739    ) -> Task<Result<Entity<Buffer>>> {
2740        cx.spawn(async move |repository, cx| {
2741            let buffer = buffer_store
2742                .update(cx, |buffer_store, cx| buffer_store.create_buffer(cx))?
2743                .await?;
2744
2745            if let Some(language_registry) = language_registry {
2746                let git_commit_language = language_registry.language_for_name("Git Commit").await?;
2747                buffer.update(cx, |buffer, cx| {
2748                    buffer.set_language(Some(git_commit_language), cx);
2749                })?;
2750            }
2751
2752            repository.update(cx, |repository, _| {
2753                repository.commit_message_buffer = Some(buffer.clone());
2754            })?;
2755            Ok(buffer)
2756        })
2757    }
2758
2759    pub fn checkout_files(
2760        &self,
2761        commit: &str,
2762        paths: Vec<RepoPath>,
2763        cx: &mut App,
2764    ) -> oneshot::Receiver<Result<()>> {
2765        let commit = commit.to_string();
2766        let env = self.worktree_environment(cx);
2767
2768        self.send_job(|git_repo, _| async move {
2769            match git_repo {
2770                RepositoryState::Local(repo) => repo.checkout_files(commit, paths, env.await).await,
2771                RepositoryState::Remote {
2772                    project_id,
2773                    client,
2774                    work_directory_id,
2775                } => {
2776                    client
2777                        .request(proto::GitCheckoutFiles {
2778                            project_id: project_id.0,
2779                            work_directory_id: work_directory_id.to_proto(),
2780                            commit,
2781                            paths: paths
2782                                .into_iter()
2783                                .map(|p| p.to_string_lossy().to_string())
2784                                .collect(),
2785                        })
2786                        .await?;
2787
2788                    Ok(())
2789                }
2790            }
2791        })
2792    }
2793
2794    pub fn reset(
2795        &self,
2796        commit: String,
2797        reset_mode: ResetMode,
2798        cx: &mut App,
2799    ) -> oneshot::Receiver<Result<()>> {
2800        let commit = commit.to_string();
2801        let env = self.worktree_environment(cx);
2802        self.send_job(|git_repo, _| async move {
2803            match git_repo {
2804                RepositoryState::Local(git_repo) => {
2805                    let env = env.await;
2806                    git_repo.reset(commit, reset_mode, env).await
2807                }
2808                RepositoryState::Remote {
2809                    project_id,
2810                    client,
2811                    work_directory_id,
2812                } => {
2813                    client
2814                        .request(proto::GitReset {
2815                            project_id: project_id.0,
2816                            work_directory_id: work_directory_id.to_proto(),
2817                            commit,
2818                            mode: match reset_mode {
2819                                ResetMode::Soft => git_reset::ResetMode::Soft.into(),
2820                                ResetMode::Mixed => git_reset::ResetMode::Mixed.into(),
2821                            },
2822                        })
2823                        .await?;
2824
2825                    Ok(())
2826                }
2827            }
2828        })
2829    }
2830
2831    pub fn show(&self, commit: String) -> oneshot::Receiver<Result<CommitDetails>> {
2832        self.send_job(|git_repo, _cx| async move {
2833            match git_repo {
2834                RepositoryState::Local(git_repository) => git_repository.show(commit).await,
2835                RepositoryState::Remote {
2836                    project_id,
2837                    client,
2838                    work_directory_id,
2839                } => {
2840                    let resp = client
2841                        .request(proto::GitShow {
2842                            project_id: project_id.0,
2843                            work_directory_id: work_directory_id.to_proto(),
2844                            commit,
2845                        })
2846                        .await?;
2847
2848                    Ok(CommitDetails {
2849                        sha: resp.sha.into(),
2850                        message: resp.message.into(),
2851                        commit_timestamp: resp.commit_timestamp,
2852                        committer_email: resp.committer_email.into(),
2853                        committer_name: resp.committer_name.into(),
2854                    })
2855                }
2856            }
2857        })
2858    }
2859
2860    fn buffer_store(&self, cx: &App) -> Option<Entity<BufferStore>> {
2861        Some(self.git_store.upgrade()?.read(cx).buffer_store.clone())
2862    }
2863
2864    pub fn stage_entries(
2865        &self,
2866        entries: Vec<RepoPath>,
2867        cx: &mut Context<Self>,
2868    ) -> Task<anyhow::Result<()>> {
2869        if entries.is_empty() {
2870            return Task::ready(Ok(()));
2871        }
2872        let env = self.worktree_environment(cx);
2873
2874        let mut save_futures = Vec::new();
2875        if let Some(buffer_store) = self.buffer_store(cx) {
2876            buffer_store.update(cx, |buffer_store, cx| {
2877                for path in &entries {
2878                    let Some(project_path) = self.repo_path_to_project_path(path, cx) else {
2879                        continue;
2880                    };
2881                    if let Some(buffer) = buffer_store.get_by_path(&project_path, cx) {
2882                        if buffer
2883                            .read(cx)
2884                            .file()
2885                            .map_or(false, |file| file.disk_state().exists())
2886                        {
2887                            save_futures.push(buffer_store.save_buffer(buffer, cx));
2888                        }
2889                    }
2890                }
2891            })
2892        }
2893
2894        cx.spawn(async move |this, cx| {
2895            for save_future in save_futures {
2896                save_future.await?;
2897            }
2898            let env = env.await;
2899
2900            this.update(cx, |this, _| {
2901                this.send_job(|git_repo, _cx| async move {
2902                    match git_repo {
2903                        RepositoryState::Local(repo) => repo.stage_paths(entries, env).await,
2904                        RepositoryState::Remote {
2905                            project_id,
2906                            client,
2907                            work_directory_id,
2908                        } => {
2909                            client
2910                                .request(proto::Stage {
2911                                    project_id: project_id.0,
2912                                    work_directory_id: work_directory_id.to_proto(),
2913                                    paths: entries
2914                                        .into_iter()
2915                                        .map(|repo_path| repo_path.as_ref().to_proto())
2916                                        .collect(),
2917                                })
2918                                .await
2919                                .context("sending stage request")?;
2920
2921                            Ok(())
2922                        }
2923                    }
2924                })
2925            })?
2926            .await??;
2927
2928            Ok(())
2929        })
2930    }
2931
2932    pub fn unstage_entries(
2933        &self,
2934        entries: Vec<RepoPath>,
2935        cx: &mut Context<Self>,
2936    ) -> Task<anyhow::Result<()>> {
2937        if entries.is_empty() {
2938            return Task::ready(Ok(()));
2939        }
2940        let env = self.worktree_environment(cx);
2941
2942        let mut save_futures = Vec::new();
2943        if let Some(buffer_store) = self.buffer_store(cx) {
2944            buffer_store.update(cx, |buffer_store, cx| {
2945                for path in &entries {
2946                    let Some(project_path) = self.repo_path_to_project_path(path, cx) else {
2947                        continue;
2948                    };
2949                    if let Some(buffer) = buffer_store.get_by_path(&project_path, cx) {
2950                        if buffer
2951                            .read(cx)
2952                            .file()
2953                            .map_or(false, |file| file.disk_state().exists())
2954                        {
2955                            save_futures.push(buffer_store.save_buffer(buffer, cx));
2956                        }
2957                    }
2958                }
2959            })
2960        }
2961
2962        cx.spawn(async move |this, cx| {
2963            for save_future in save_futures {
2964                save_future.await?;
2965            }
2966            let env = env.await;
2967
2968            this.update(cx, |this, _| {
2969                this.send_job(|git_repo, _cx| async move {
2970                    match git_repo {
2971                        RepositoryState::Local(repo) => repo.unstage_paths(entries, env).await,
2972                        RepositoryState::Remote {
2973                            project_id,
2974                            client,
2975                            work_directory_id,
2976                        } => {
2977                            client
2978                                .request(proto::Unstage {
2979                                    project_id: project_id.0,
2980                                    work_directory_id: work_directory_id.to_proto(),
2981                                    paths: entries
2982                                        .into_iter()
2983                                        .map(|repo_path| repo_path.as_ref().to_proto())
2984                                        .collect(),
2985                                })
2986                                .await
2987                                .context("sending unstage request")?;
2988
2989                            Ok(())
2990                        }
2991                    }
2992                })
2993            })?
2994            .await??;
2995
2996            Ok(())
2997        })
2998    }
2999
3000    pub fn stage_all(&self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
3001        let to_stage = self
3002            .repository_entry
3003            .status()
3004            .filter(|entry| !entry.status.staging().is_fully_staged())
3005            .map(|entry| entry.repo_path.clone())
3006            .collect();
3007        self.stage_entries(to_stage, cx)
3008    }
3009
3010    pub fn unstage_all(&self, cx: &mut Context<Self>) -> Task<anyhow::Result<()>> {
3011        let to_unstage = self
3012            .repository_entry
3013            .status()
3014            .filter(|entry| entry.status.staging().has_staged())
3015            .map(|entry| entry.repo_path.clone())
3016            .collect();
3017        self.unstage_entries(to_unstage, cx)
3018    }
3019
3020    /// Get a count of all entries in the active repository, including
3021    /// untracked files.
3022    pub fn entry_count(&self) -> usize {
3023        self.repository_entry.status_len()
3024    }
3025
3026    fn worktree_environment(
3027        &self,
3028        cx: &mut App,
3029    ) -> impl Future<Output = HashMap<String, String>> + 'static {
3030        let task = self.project_environment.as_ref().and_then(|env| {
3031            env.update(cx, |env, cx| {
3032                env.get_environment(
3033                    self.worktree_id,
3034                    Some(
3035                        self.repository_entry
3036                            .work_directory_abs_path
3037                            .as_path()
3038                            .into(),
3039                    ),
3040                    cx,
3041                )
3042            })
3043            .ok()
3044        });
3045        async move { OptionFuture::from(task).await.flatten().unwrap_or_default() }
3046    }
3047
3048    pub fn commit(
3049        &self,
3050        message: SharedString,
3051        name_and_email: Option<(SharedString, SharedString)>,
3052        cx: &mut App,
3053    ) -> oneshot::Receiver<Result<()>> {
3054        let env = self.worktree_environment(cx);
3055        self.send_job(|git_repo, _cx| async move {
3056            match git_repo {
3057                RepositoryState::Local(repo) => {
3058                    let env = env.await;
3059                    repo.commit(message, name_and_email, env).await
3060                }
3061                RepositoryState::Remote {
3062                    project_id,
3063                    client,
3064                    work_directory_id,
3065                } => {
3066                    let (name, email) = name_and_email.unzip();
3067                    client
3068                        .request(proto::Commit {
3069                            project_id: project_id.0,
3070                            work_directory_id: work_directory_id.to_proto(),
3071                            message: String::from(message),
3072                            name: name.map(String::from),
3073                            email: email.map(String::from),
3074                        })
3075                        .await
3076                        .context("sending commit request")?;
3077
3078                    Ok(())
3079                }
3080            }
3081        })
3082    }
3083
3084    pub fn fetch(
3085        &mut self,
3086        askpass: AskPassDelegate,
3087        cx: &mut App,
3088    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
3089        let executor = cx.background_executor().clone();
3090        let askpass_delegates = self.askpass_delegates.clone();
3091        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
3092        let env = self.worktree_environment(cx);
3093
3094        self.send_job(move |git_repo, cx| async move {
3095            match git_repo {
3096                RepositoryState::Local(git_repository) => {
3097                    let askpass = AskPassSession::new(&executor, askpass).await?;
3098                    let env = env.await;
3099                    git_repository.fetch(askpass, env, cx).await
3100                }
3101                RepositoryState::Remote {
3102                    project_id,
3103                    client,
3104                    work_directory_id,
3105                } => {
3106                    askpass_delegates.lock().insert(askpass_id, askpass);
3107                    let _defer = util::defer(|| {
3108                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
3109                        debug_assert!(askpass_delegate.is_some());
3110                    });
3111
3112                    let response = client
3113                        .request(proto::Fetch {
3114                            project_id: project_id.0,
3115                            work_directory_id: work_directory_id.to_proto(),
3116                            askpass_id,
3117                        })
3118                        .await
3119                        .context("sending fetch request")?;
3120
3121                    Ok(RemoteCommandOutput {
3122                        stdout: response.stdout,
3123                        stderr: response.stderr,
3124                    })
3125                }
3126            }
3127        })
3128    }
3129
3130    pub fn push(
3131        &mut self,
3132        branch: SharedString,
3133        remote: SharedString,
3134        options: Option<PushOptions>,
3135        askpass: AskPassDelegate,
3136        cx: &mut App,
3137    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
3138        let executor = cx.background_executor().clone();
3139        let askpass_delegates = self.askpass_delegates.clone();
3140        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
3141        let env = self.worktree_environment(cx);
3142
3143        self.send_job(move |git_repo, cx| async move {
3144            match git_repo {
3145                RepositoryState::Local(git_repository) => {
3146                    let env = env.await;
3147                    let askpass = AskPassSession::new(&executor, askpass).await?;
3148                    git_repository
3149                        .push(
3150                            branch.to_string(),
3151                            remote.to_string(),
3152                            options,
3153                            askpass,
3154                            env,
3155                            cx,
3156                        )
3157                        .await
3158                }
3159                RepositoryState::Remote {
3160                    project_id,
3161                    client,
3162                    work_directory_id,
3163                } => {
3164                    askpass_delegates.lock().insert(askpass_id, askpass);
3165                    let _defer = util::defer(|| {
3166                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
3167                        debug_assert!(askpass_delegate.is_some());
3168                    });
3169                    let response = client
3170                        .request(proto::Push {
3171                            project_id: project_id.0,
3172                            work_directory_id: work_directory_id.to_proto(),
3173                            askpass_id,
3174                            branch_name: branch.to_string(),
3175                            remote_name: remote.to_string(),
3176                            options: options.map(|options| match options {
3177                                PushOptions::Force => proto::push::PushOptions::Force,
3178                                PushOptions::SetUpstream => proto::push::PushOptions::SetUpstream,
3179                            } as i32),
3180                        })
3181                        .await
3182                        .context("sending push request")?;
3183
3184                    Ok(RemoteCommandOutput {
3185                        stdout: response.stdout,
3186                        stderr: response.stderr,
3187                    })
3188                }
3189            }
3190        })
3191    }
3192
3193    pub fn pull(
3194        &mut self,
3195        branch: SharedString,
3196        remote: SharedString,
3197        askpass: AskPassDelegate,
3198        cx: &mut App,
3199    ) -> oneshot::Receiver<Result<RemoteCommandOutput>> {
3200        let executor = cx.background_executor().clone();
3201        let askpass_delegates = self.askpass_delegates.clone();
3202        let askpass_id = util::post_inc(&mut self.latest_askpass_id);
3203        let env = self.worktree_environment(cx);
3204
3205        self.send_job(move |git_repo, cx| async move {
3206            match git_repo {
3207                RepositoryState::Local(git_repository) => {
3208                    let askpass = AskPassSession::new(&executor, askpass).await?;
3209                    let env = env.await;
3210                    git_repository
3211                        .pull(branch.to_string(), remote.to_string(), askpass, env, cx)
3212                        .await
3213                }
3214                RepositoryState::Remote {
3215                    project_id,
3216                    client,
3217                    work_directory_id,
3218                } => {
3219                    askpass_delegates.lock().insert(askpass_id, askpass);
3220                    let _defer = util::defer(|| {
3221                        let askpass_delegate = askpass_delegates.lock().remove(&askpass_id);
3222                        debug_assert!(askpass_delegate.is_some());
3223                    });
3224                    let response = client
3225                        .request(proto::Pull {
3226                            project_id: project_id.0,
3227                            work_directory_id: work_directory_id.to_proto(),
3228                            askpass_id,
3229                            branch_name: branch.to_string(),
3230                            remote_name: remote.to_string(),
3231                        })
3232                        .await
3233                        .context("sending pull request")?;
3234
3235                    Ok(RemoteCommandOutput {
3236                        stdout: response.stdout,
3237                        stderr: response.stderr,
3238                    })
3239                }
3240            }
3241        })
3242    }
3243
3244    fn spawn_set_index_text_job(
3245        &self,
3246        path: RepoPath,
3247        content: Option<String>,
3248        cx: &mut App,
3249    ) -> oneshot::Receiver<anyhow::Result<()>> {
3250        let env = self.worktree_environment(cx);
3251
3252        self.send_keyed_job(
3253            Some(GitJobKey::WriteIndex(path.clone())),
3254            |git_repo, _cx| async {
3255                match git_repo {
3256                    RepositoryState::Local(repo) => {
3257                        repo.set_index_text(path, content, env.await).await
3258                    }
3259                    RepositoryState::Remote {
3260                        project_id,
3261                        client,
3262                        work_directory_id,
3263                    } => {
3264                        client
3265                            .request(proto::SetIndexText {
3266                                project_id: project_id.0,
3267                                work_directory_id: work_directory_id.to_proto(),
3268                                path: path.as_ref().to_proto(),
3269                                text: content,
3270                            })
3271                            .await?;
3272                        Ok(())
3273                    }
3274                }
3275            },
3276        )
3277    }
3278
3279    pub fn get_remotes(
3280        &self,
3281        branch_name: Option<String>,
3282    ) -> oneshot::Receiver<Result<Vec<Remote>>> {
3283        self.send_job(|repo, _cx| async move {
3284            match repo {
3285                RepositoryState::Local(git_repository) => {
3286                    git_repository.get_remotes(branch_name).await
3287                }
3288                RepositoryState::Remote {
3289                    project_id,
3290                    client,
3291                    work_directory_id,
3292                } => {
3293                    let response = client
3294                        .request(proto::GetRemotes {
3295                            project_id: project_id.0,
3296                            work_directory_id: work_directory_id.to_proto(),
3297                            branch_name,
3298                        })
3299                        .await?;
3300
3301                    let remotes = response
3302                        .remotes
3303                        .into_iter()
3304                        .map(|remotes| git::repository::Remote {
3305                            name: remotes.name.into(),
3306                        })
3307                        .collect();
3308
3309                    Ok(remotes)
3310                }
3311            }
3312        })
3313    }
3314
3315    pub fn branch(&self) -> Option<&Branch> {
3316        self.repository_entry.branch()
3317    }
3318
3319    pub fn branches(&self) -> oneshot::Receiver<Result<Vec<Branch>>> {
3320        self.send_job(|repo, cx| async move {
3321            match repo {
3322                RepositoryState::Local(git_repository) => {
3323                    let git_repository = git_repository.clone();
3324                    cx.background_spawn(async move { git_repository.branches().await })
3325                        .await
3326                }
3327                RepositoryState::Remote {
3328                    project_id,
3329                    client,
3330                    work_directory_id,
3331                } => {
3332                    let response = client
3333                        .request(proto::GitGetBranches {
3334                            project_id: project_id.0,
3335                            work_directory_id: work_directory_id.to_proto(),
3336                        })
3337                        .await?;
3338
3339                    let branches = response
3340                        .branches
3341                        .into_iter()
3342                        .map(|branch| worktree::proto_to_branch(&branch))
3343                        .collect();
3344
3345                    Ok(branches)
3346                }
3347            }
3348        })
3349    }
3350
3351    pub fn diff(&self, diff_type: DiffType, _cx: &App) -> oneshot::Receiver<Result<String>> {
3352        self.send_job(|repo, _cx| async move {
3353            match repo {
3354                RepositoryState::Local(git_repository) => git_repository.diff(diff_type).await,
3355                RepositoryState::Remote {
3356                    project_id,
3357                    client,
3358                    work_directory_id,
3359                    ..
3360                } => {
3361                    let response = client
3362                        .request(proto::GitDiff {
3363                            project_id: project_id.0,
3364                            work_directory_id: work_directory_id.to_proto(),
3365                            diff_type: match diff_type {
3366                                DiffType::HeadToIndex => {
3367                                    proto::git_diff::DiffType::HeadToIndex.into()
3368                                }
3369                                DiffType::HeadToWorktree => {
3370                                    proto::git_diff::DiffType::HeadToWorktree.into()
3371                                }
3372                            },
3373                        })
3374                        .await?;
3375
3376                    Ok(response.diff)
3377                }
3378            }
3379        })
3380    }
3381
3382    pub fn create_branch(&self, branch_name: String) -> oneshot::Receiver<Result<()>> {
3383        self.send_job(|repo, _cx| async move {
3384            match repo {
3385                RepositoryState::Local(git_repository) => {
3386                    git_repository.create_branch(branch_name).await
3387                }
3388                RepositoryState::Remote {
3389                    project_id,
3390                    client,
3391                    work_directory_id,
3392                } => {
3393                    client
3394                        .request(proto::GitCreateBranch {
3395                            project_id: project_id.0,
3396                            work_directory_id: work_directory_id.to_proto(),
3397                            branch_name,
3398                        })
3399                        .await?;
3400
3401                    Ok(())
3402                }
3403            }
3404        })
3405    }
3406
3407    pub fn change_branch(&self, branch_name: String) -> oneshot::Receiver<Result<()>> {
3408        self.send_job(|repo, _cx| async move {
3409            match repo {
3410                RepositoryState::Local(git_repository) => {
3411                    git_repository.change_branch(branch_name).await
3412                }
3413                RepositoryState::Remote {
3414                    project_id,
3415                    client,
3416                    work_directory_id,
3417                } => {
3418                    client
3419                        .request(proto::GitChangeBranch {
3420                            project_id: project_id.0,
3421                            work_directory_id: work_directory_id.to_proto(),
3422                            branch_name,
3423                        })
3424                        .await?;
3425
3426                    Ok(())
3427                }
3428            }
3429        })
3430    }
3431
3432    pub fn check_for_pushed_commits(&self) -> oneshot::Receiver<Result<Vec<SharedString>>> {
3433        self.send_job(|repo, _cx| async move {
3434            match repo {
3435                RepositoryState::Local(git_repository) => {
3436                    git_repository.check_for_pushed_commit().await
3437                }
3438                RepositoryState::Remote {
3439                    project_id,
3440                    client,
3441                    work_directory_id,
3442                } => {
3443                    let response = client
3444                        .request(proto::CheckForPushedCommits {
3445                            project_id: project_id.0,
3446                            work_directory_id: work_directory_id.to_proto(),
3447                        })
3448                        .await?;
3449
3450                    let branches = response.pushed_to.into_iter().map(Into::into).collect();
3451
3452                    Ok(branches)
3453                }
3454            }
3455        })
3456    }
3457
3458    pub fn checkpoint(&self) -> oneshot::Receiver<Result<GitRepositoryCheckpoint>> {
3459        self.send_job(|repo, _cx| async move {
3460            match repo {
3461                RepositoryState::Local(git_repository) => git_repository.checkpoint().await,
3462                RepositoryState::Remote { .. } => Err(anyhow!("not implemented yet")),
3463            }
3464        })
3465    }
3466
3467    pub fn restore_checkpoint(
3468        &self,
3469        checkpoint: GitRepositoryCheckpoint,
3470    ) -> oneshot::Receiver<Result<()>> {
3471        self.send_job(move |repo, _cx| async move {
3472            match repo {
3473                RepositoryState::Local(git_repository) => {
3474                    git_repository.restore_checkpoint(checkpoint).await
3475                }
3476                RepositoryState::Remote { .. } => Err(anyhow!("not implemented yet")),
3477            }
3478        })
3479    }
3480
3481    pub(crate) fn apply_remote_update(&mut self, update: proto::UpdateRepository) -> Result<()> {
3482        let conflicted_paths = TreeSet::from_ordered_entries(
3483            update
3484                .current_merge_conflicts
3485                .into_iter()
3486                .map(|path| RepoPath(Path::new(&path).into())),
3487        );
3488        self.repository_entry.current_branch = update.branch_summary.as_ref().map(proto_to_branch);
3489        self.repository_entry.current_merge_conflicts = conflicted_paths;
3490
3491        let edits = update
3492            .removed_statuses
3493            .into_iter()
3494            .map(|path| sum_tree::Edit::Remove(PathKey(FromProto::from_proto(path))))
3495            .chain(
3496                update
3497                    .updated_statuses
3498                    .into_iter()
3499                    .filter_map(|updated_status| {
3500                        Some(sum_tree::Edit::Insert(updated_status.try_into().log_err()?))
3501                    }),
3502            )
3503            .collect::<Vec<_>>();
3504        self.repository_entry.statuses_by_path.edit(edits, &());
3505        Ok(())
3506    }
3507
3508    pub fn compare_checkpoints(
3509        &self,
3510        left: GitRepositoryCheckpoint,
3511        right: GitRepositoryCheckpoint,
3512    ) -> oneshot::Receiver<Result<bool>> {
3513        self.send_job(move |repo, _cx| async move {
3514            match repo {
3515                RepositoryState::Local(git_repository) => {
3516                    git_repository.compare_checkpoints(left, right).await
3517                }
3518                RepositoryState::Remote { .. } => Err(anyhow!("not implemented yet")),
3519            }
3520        })
3521    }
3522
3523    pub fn delete_checkpoint(
3524        &self,
3525        checkpoint: GitRepositoryCheckpoint,
3526    ) -> oneshot::Receiver<Result<()>> {
3527        self.send_job(move |repo, _cx| async move {
3528            match repo {
3529                RepositoryState::Local(git_repository) => {
3530                    git_repository.delete_checkpoint(checkpoint).await
3531                }
3532                RepositoryState::Remote { .. } => Err(anyhow!("not implemented yet")),
3533            }
3534        })
3535    }
3536}
3537
3538fn get_permalink_in_rust_registry_src(
3539    provider_registry: Arc<GitHostingProviderRegistry>,
3540    path: PathBuf,
3541    selection: Range<u32>,
3542) -> Result<url::Url> {
3543    #[derive(Deserialize)]
3544    struct CargoVcsGit {
3545        sha1: String,
3546    }
3547
3548    #[derive(Deserialize)]
3549    struct CargoVcsInfo {
3550        git: CargoVcsGit,
3551        path_in_vcs: String,
3552    }
3553
3554    #[derive(Deserialize)]
3555    struct CargoPackage {
3556        repository: String,
3557    }
3558
3559    #[derive(Deserialize)]
3560    struct CargoToml {
3561        package: CargoPackage,
3562    }
3563
3564    let Some((dir, cargo_vcs_info_json)) = path.ancestors().skip(1).find_map(|dir| {
3565        let json = std::fs::read_to_string(dir.join(".cargo_vcs_info.json")).ok()?;
3566        Some((dir, json))
3567    }) else {
3568        bail!("No .cargo_vcs_info.json found in parent directories")
3569    };
3570    let cargo_vcs_info = serde_json::from_str::<CargoVcsInfo>(&cargo_vcs_info_json)?;
3571    let cargo_toml = std::fs::read_to_string(dir.join("Cargo.toml"))?;
3572    let manifest = toml::from_str::<CargoToml>(&cargo_toml)?;
3573    let (provider, remote) = parse_git_remote_url(provider_registry, &manifest.package.repository)
3574        .ok_or_else(|| anyhow!("Failed to parse package.repository field of manifest"))?;
3575    let path = PathBuf::from(cargo_vcs_info.path_in_vcs).join(path.strip_prefix(dir).unwrap());
3576    let permalink = provider.build_permalink(
3577        remote,
3578        BuildPermalinkParams {
3579            sha: &cargo_vcs_info.git.sha1,
3580            path: &path.to_string_lossy(),
3581            selection: Some(selection),
3582        },
3583    );
3584    Ok(permalink)
3585}
3586
3587fn serialize_blame_buffer_response(blame: Option<git::blame::Blame>) -> proto::BlameBufferResponse {
3588    let Some(blame) = blame else {
3589        return proto::BlameBufferResponse {
3590            blame_response: None,
3591        };
3592    };
3593
3594    let entries = blame
3595        .entries
3596        .into_iter()
3597        .map(|entry| proto::BlameEntry {
3598            sha: entry.sha.as_bytes().into(),
3599            start_line: entry.range.start,
3600            end_line: entry.range.end,
3601            original_line_number: entry.original_line_number,
3602            author: entry.author.clone(),
3603            author_mail: entry.author_mail.clone(),
3604            author_time: entry.author_time,
3605            author_tz: entry.author_tz.clone(),
3606            committer: entry.committer_name.clone(),
3607            committer_mail: entry.committer_email.clone(),
3608            committer_time: entry.committer_time,
3609            committer_tz: entry.committer_tz.clone(),
3610            summary: entry.summary.clone(),
3611            previous: entry.previous.clone(),
3612            filename: entry.filename.clone(),
3613        })
3614        .collect::<Vec<_>>();
3615
3616    let messages = blame
3617        .messages
3618        .into_iter()
3619        .map(|(oid, message)| proto::CommitMessage {
3620            oid: oid.as_bytes().into(),
3621            message,
3622        })
3623        .collect::<Vec<_>>();
3624
3625    proto::BlameBufferResponse {
3626        blame_response: Some(proto::blame_buffer_response::BlameResponse {
3627            entries,
3628            messages,
3629            remote_url: blame.remote_url,
3630        }),
3631    }
3632}
3633
3634fn deserialize_blame_buffer_response(
3635    response: proto::BlameBufferResponse,
3636) -> Option<git::blame::Blame> {
3637    let response = response.blame_response?;
3638    let entries = response
3639        .entries
3640        .into_iter()
3641        .filter_map(|entry| {
3642            Some(git::blame::BlameEntry {
3643                sha: git::Oid::from_bytes(&entry.sha).ok()?,
3644                range: entry.start_line..entry.end_line,
3645                original_line_number: entry.original_line_number,
3646                committer_name: entry.committer,
3647                committer_time: entry.committer_time,
3648                committer_tz: entry.committer_tz,
3649                committer_email: entry.committer_mail,
3650                author: entry.author,
3651                author_mail: entry.author_mail,
3652                author_time: entry.author_time,
3653                author_tz: entry.author_tz,
3654                summary: entry.summary,
3655                previous: entry.previous,
3656                filename: entry.filename,
3657            })
3658        })
3659        .collect::<Vec<_>>();
3660
3661    let messages = response
3662        .messages
3663        .into_iter()
3664        .filter_map(|message| Some((git::Oid::from_bytes(&message.oid).ok()?, message.message)))
3665        .collect::<HashMap<_, _>>();
3666
3667    Some(Blame {
3668        entries,
3669        messages,
3670        remote_url: response.remote_url,
3671    })
3672}