1mod ignore;
2mod worktree_settings;
3#[cfg(test)]
4mod worktree_tests;
5
6use ::ignore::gitignore::{Gitignore, GitignoreBuilder};
7use anyhow::{Context as _, Result, anyhow};
8use clock::ReplicaId;
9use collections::{HashMap, HashSet, VecDeque};
10use fs::{Fs, MTime, PathEvent, RemoveOptions, Watcher, copy_recursive, read_dir_items};
11use futures::{
12 FutureExt as _, Stream, StreamExt,
13 channel::{
14 mpsc::{self, UnboundedSender},
15 oneshot,
16 },
17 select_biased,
18 task::Poll,
19};
20use fuzzy::CharBag;
21use git::{
22 COMMIT_MESSAGE, DOT_GIT, FSMONITOR_DAEMON, GITIGNORE, INDEX_LOCK, LFS_DIR,
23 repository::RepoPath, status::GitSummary,
24};
25use gpui::{
26 App, AppContext as _, AsyncApp, BackgroundExecutor, Context, Entity, EventEmitter, Task,
27};
28use ignore::IgnoreStack;
29use language::DiskState;
30
31use parking_lot::Mutex;
32use paths::{local_settings_folder_relative_path, local_vscode_folder_relative_path};
33use postage::{
34 barrier,
35 prelude::{Sink as _, Stream as _},
36 watch,
37};
38use rpc::{
39 AnyProtoClient,
40 proto::{self, FromProto, ToProto, split_worktree_update},
41};
42pub use settings::WorktreeId;
43use settings::{Settings, SettingsLocation, SettingsStore};
44use smallvec::{SmallVec, smallvec};
45use smol::channel::{self, Sender};
46use std::{
47 any::Any,
48 borrow::Borrow as _,
49 cmp::Ordering,
50 collections::hash_map,
51 convert::TryFrom,
52 ffi::OsStr,
53 fmt,
54 future::Future,
55 mem::{self},
56 ops::{Deref, DerefMut},
57 path::{Component, Path, PathBuf},
58 pin::Pin,
59 sync::{
60 Arc,
61 atomic::{AtomicUsize, Ordering::SeqCst},
62 },
63 time::{Duration, Instant},
64};
65use sum_tree::{Bias, Edit, KeyedItem, SeekTarget, SumTree, Summary, TreeMap, TreeSet};
66use text::{LineEnding, Rope};
67use util::{
68 ResultExt,
69 paths::{PathMatcher, SanitizedPath, home_dir},
70};
71pub use worktree_settings::WorktreeSettings;
72
73pub const FS_WATCH_LATENCY: Duration = Duration::from_millis(100);
74
75/// A set of local or remote files that are being opened as part of a project.
76/// Responsible for tracking related FS (for local)/collab (for remote) events and corresponding updates.
77/// Stores git repositories data and the diagnostics for the file(s).
78///
79/// Has an absolute path, and may be set to be visible in Zed UI or not.
80/// May correspond to a directory or a single file.
81/// Possible examples:
82/// * a drag and dropped file — may be added as an invisible, "ephemeral" entry to the current worktree
83/// * a directory opened in Zed — may be added as a visible entry to the current worktree
84///
85/// Uses [`Entry`] to track the state of each file/directory, can look up absolute paths for entries.
86pub enum Worktree {
87 Local(LocalWorktree),
88 Remote(RemoteWorktree),
89}
90
91/// An entry, created in the worktree.
92#[derive(Debug)]
93pub enum CreatedEntry {
94 /// Got created and indexed by the worktree, receiving a corresponding entry.
95 Included(Entry),
96 /// Got created, but not indexed due to falling under exclusion filters.
97 Excluded { abs_path: PathBuf },
98}
99
100pub struct LoadedFile {
101 pub file: Arc<File>,
102 pub text: String,
103}
104
105pub struct LoadedBinaryFile {
106 pub file: Arc<File>,
107 pub content: Vec<u8>,
108}
109
110impl fmt::Debug for LoadedBinaryFile {
111 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
112 f.debug_struct("LoadedBinaryFile")
113 .field("file", &self.file)
114 .field("content_bytes", &self.content.len())
115 .finish()
116 }
117}
118
119pub struct LocalWorktree {
120 snapshot: LocalSnapshot,
121 scan_requests_tx: channel::Sender<ScanRequest>,
122 path_prefixes_to_scan_tx: channel::Sender<PathPrefixScanRequest>,
123 is_scanning: (watch::Sender<bool>, watch::Receiver<bool>),
124 _background_scanner_tasks: Vec<Task<()>>,
125 update_observer: Option<UpdateObservationState>,
126 fs: Arc<dyn Fs>,
127 fs_case_sensitive: bool,
128 visible: bool,
129 next_entry_id: Arc<AtomicUsize>,
130 settings: WorktreeSettings,
131 share_private_files: bool,
132}
133
134pub struct PathPrefixScanRequest {
135 path: Arc<Path>,
136 done: SmallVec<[barrier::Sender; 1]>,
137}
138
139struct ScanRequest {
140 relative_paths: Vec<Arc<Path>>,
141 done: SmallVec<[barrier::Sender; 1]>,
142}
143
144pub struct RemoteWorktree {
145 snapshot: Snapshot,
146 background_snapshot: Arc<Mutex<(Snapshot, Vec<proto::UpdateWorktree>)>>,
147 project_id: u64,
148 client: AnyProtoClient,
149 file_scan_inclusions: PathMatcher,
150 updates_tx: Option<UnboundedSender<proto::UpdateWorktree>>,
151 update_observer: Option<mpsc::UnboundedSender<proto::UpdateWorktree>>,
152 snapshot_subscriptions: VecDeque<(usize, oneshot::Sender<()>)>,
153 replica_id: ReplicaId,
154 visible: bool,
155 disconnected: bool,
156}
157
158#[derive(Clone)]
159pub struct Snapshot {
160 id: WorktreeId,
161 abs_path: SanitizedPath,
162 root_name: String,
163 root_char_bag: CharBag,
164 entries_by_path: SumTree<Entry>,
165 entries_by_id: SumTree<PathEntry>,
166 always_included_entries: Vec<Arc<Path>>,
167
168 /// A number that increases every time the worktree begins scanning
169 /// a set of paths from the filesystem. This scanning could be caused
170 /// by some operation performed on the worktree, such as reading or
171 /// writing a file, or by an event reported by the filesystem.
172 scan_id: usize,
173
174 /// The latest scan id that has completed, and whose preceding scans
175 /// have all completed. The current `scan_id` could be more than one
176 /// greater than the `completed_scan_id` if operations are performed
177 /// on the worktree while it is processing a file-system event.
178 completed_scan_id: usize,
179}
180
181/// This path corresponds to the 'content path' of a repository in relation
182/// to Zed's project root.
183/// In the majority of the cases, this is the folder that contains the .git folder.
184/// But if a sub-folder of a git repository is opened, this corresponds to the
185/// project root and the .git folder is located in a parent directory.
186#[derive(Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)]
187pub enum WorkDirectory {
188 InProject {
189 relative_path: Arc<Path>,
190 },
191 AboveProject {
192 absolute_path: Arc<Path>,
193 location_in_repo: Arc<Path>,
194 },
195}
196
197impl WorkDirectory {
198 #[cfg(test)]
199 fn in_project(path: &str) -> Self {
200 let path = Path::new(path);
201 Self::InProject {
202 relative_path: path.into(),
203 }
204 }
205
206 //#[cfg(test)]
207 //fn canonicalize(&self) -> Self {
208 // match self {
209 // WorkDirectory::InProject { relative_path } => WorkDirectory::InProject {
210 // relative_path: relative_path.clone(),
211 // },
212 // WorkDirectory::AboveProject {
213 // absolute_path,
214 // location_in_repo,
215 // } => WorkDirectory::AboveProject {
216 // absolute_path: absolute_path.canonicalize().unwrap().into(),
217 // location_in_repo: location_in_repo.clone(),
218 // },
219 // }
220 //}
221
222 fn path_key(&self) -> PathKey {
223 match self {
224 WorkDirectory::InProject { relative_path } => PathKey(relative_path.clone()),
225 WorkDirectory::AboveProject { .. } => PathKey(Path::new("").into()),
226 }
227 }
228
229 /// Returns true if the given path is a child of the work directory.
230 ///
231 /// Note that the path may not be a member of this repository, if there
232 /// is a repository in a directory between these two paths
233 /// external .git folder in a parent folder of the project root.
234 #[track_caller]
235 pub fn directory_contains(&self, path: impl AsRef<Path>) -> bool {
236 let path = path.as_ref();
237 debug_assert!(path.is_relative());
238 match self {
239 WorkDirectory::InProject { relative_path } => path.starts_with(relative_path),
240 WorkDirectory::AboveProject { .. } => true,
241 }
242 }
243
244 /// relativize returns the given project path relative to the root folder of the
245 /// repository.
246 /// If the root of the repository (and its .git folder) are located in a parent folder
247 /// of the project root folder, then the returned RepoPath is relative to the root
248 /// of the repository and not a valid path inside the project.
249 pub fn relativize(&self, path: &Path) -> Result<RepoPath> {
250 // path is assumed to be relative to worktree root.
251 debug_assert!(path.is_relative());
252 match self {
253 WorkDirectory::InProject { relative_path } => Ok(path
254 .strip_prefix(relative_path)
255 .map_err(|_| anyhow!("could not relativize {path:?} against {relative_path:?}"))?
256 .into()),
257 WorkDirectory::AboveProject {
258 location_in_repo, ..
259 } => {
260 // Avoid joining a `/` to location_in_repo in the case of a single-file worktree.
261 if path == Path::new("") {
262 Ok(RepoPath(location_in_repo.clone()))
263 } else {
264 Ok(location_in_repo.join(path).into())
265 }
266 }
267 }
268 }
269
270 /// This is the opposite operation to `relativize` above
271 pub fn try_unrelativize(&self, path: &RepoPath) -> Option<Arc<Path>> {
272 match self {
273 WorkDirectory::InProject { relative_path } => Some(relative_path.join(path).into()),
274 WorkDirectory::AboveProject {
275 location_in_repo, ..
276 } => {
277 // If we fail to strip the prefix, that means this status entry is
278 // external to this worktree, and we definitely won't have an entry_id
279 path.strip_prefix(location_in_repo).ok().map(Into::into)
280 }
281 }
282 }
283
284 pub fn unrelativize(&self, path: &RepoPath) -> Arc<Path> {
285 match self {
286 WorkDirectory::InProject { relative_path } => relative_path.join(path).into(),
287 WorkDirectory::AboveProject {
288 location_in_repo, ..
289 } => {
290 if &path.0 == location_in_repo {
291 // Single-file worktree
292 return location_in_repo
293 .file_name()
294 .map(Path::new)
295 .unwrap_or(Path::new(""))
296 .into();
297 }
298 let mut location_in_repo = &**location_in_repo;
299 let mut parents = PathBuf::new();
300 loop {
301 if let Ok(segment) = path.strip_prefix(location_in_repo) {
302 return parents.join(segment).into();
303 }
304 location_in_repo = location_in_repo.parent().unwrap_or(Path::new(""));
305 parents.push(Component::ParentDir);
306 }
307 }
308 }
309 }
310
311 pub fn display_name(&self) -> String {
312 match self {
313 WorkDirectory::InProject { relative_path } => relative_path.display().to_string(),
314 WorkDirectory::AboveProject {
315 absolute_path,
316 location_in_repo,
317 } => {
318 let num_of_dots = location_in_repo.components().count();
319
320 "../".repeat(num_of_dots)
321 + &absolute_path
322 .file_name()
323 .map(|s| s.to_string_lossy())
324 .unwrap_or_default()
325 + "/"
326 }
327 }
328 }
329}
330
331impl Default for WorkDirectory {
332 fn default() -> Self {
333 Self::InProject {
334 relative_path: Arc::from(Path::new("")),
335 }
336 }
337}
338
339#[derive(Clone, Debug, Ord, PartialOrd, Eq, PartialEq)]
340pub struct WorkDirectoryEntry(ProjectEntryId);
341
342impl Deref for WorkDirectoryEntry {
343 type Target = ProjectEntryId;
344
345 fn deref(&self) -> &Self::Target {
346 &self.0
347 }
348}
349
350impl From<ProjectEntryId> for WorkDirectoryEntry {
351 fn from(value: ProjectEntryId) -> Self {
352 WorkDirectoryEntry(value)
353 }
354}
355
356#[derive(Debug, Clone)]
357pub struct LocalSnapshot {
358 snapshot: Snapshot,
359 /// All of the gitignore files in the worktree, indexed by their relative path.
360 /// The boolean indicates whether the gitignore needs to be updated.
361 ignores_by_parent_abs_path: HashMap<Arc<Path>, (Arc<Gitignore>, bool)>,
362 /// All of the git repositories in the worktree, indexed by the project entry
363 /// id of their parent directory.
364 git_repositories: TreeMap<ProjectEntryId, LocalRepositoryEntry>,
365 /// The file handle of the root dir
366 /// (so we can find it after it's been moved)
367 root_file_handle: Option<Arc<dyn fs::FileHandle>>,
368}
369
370struct BackgroundScannerState {
371 snapshot: LocalSnapshot,
372 scanned_dirs: HashSet<ProjectEntryId>,
373 path_prefixes_to_scan: HashSet<Arc<Path>>,
374 paths_to_scan: HashSet<Arc<Path>>,
375 /// The ids of all of the entries that were removed from the snapshot
376 /// as part of the current update. These entry ids may be re-used
377 /// if the same inode is discovered at a new path, or if the given
378 /// path is re-created after being deleted.
379 removed_entries: HashMap<u64, Entry>,
380 changed_paths: Vec<Arc<Path>>,
381 prev_snapshot: Snapshot,
382}
383
384#[derive(Debug, Clone)]
385struct LocalRepositoryEntry {
386 work_directory_id: ProjectEntryId,
387 work_directory: WorkDirectory,
388 work_directory_abs_path: Arc<Path>,
389 git_dir_scan_id: usize,
390 /// Absolute path to the original .git entry that caused us to create this repository.
391 ///
392 /// This is normally a directory, but may be a "gitfile" that points to a directory elsewhere
393 /// (whose path we then store in `repository_dir_abs_path`).
394 dot_git_abs_path: Arc<Path>,
395 /// Absolute path to the "commondir" for this repository.
396 ///
397 /// This is always a directory. For a normal repository, this is the same as dot_git_abs_path,
398 /// but in the case of a submodule or a worktree it is the path to the "parent" .git directory
399 /// from which the submodule/worktree was derived.
400 common_dir_abs_path: Arc<Path>,
401 /// Absolute path to the directory holding the repository's state.
402 ///
403 /// For a normal repository, this is a directory and coincides with `dot_git_abs_path` and
404 /// `common_dir_abs_path`. For a submodule or worktree, this is some subdirectory of the
405 /// commondir like `/project/.git/modules/foo`.
406 repository_dir_abs_path: Arc<Path>,
407}
408
409impl sum_tree::Item for LocalRepositoryEntry {
410 type Summary = PathSummary<&'static ()>;
411
412 fn summary(&self, _: &<Self::Summary as Summary>::Context) -> Self::Summary {
413 PathSummary {
414 max_path: self.work_directory.path_key().0,
415 item_summary: &(),
416 }
417 }
418}
419
420impl KeyedItem for LocalRepositoryEntry {
421 type Key = PathKey;
422
423 fn key(&self) -> Self::Key {
424 self.work_directory.path_key()
425 }
426}
427
428impl Deref for LocalRepositoryEntry {
429 type Target = WorkDirectory;
430
431 fn deref(&self) -> &Self::Target {
432 &self.work_directory
433 }
434}
435
436impl Deref for LocalSnapshot {
437 type Target = Snapshot;
438
439 fn deref(&self) -> &Self::Target {
440 &self.snapshot
441 }
442}
443
444impl DerefMut for LocalSnapshot {
445 fn deref_mut(&mut self) -> &mut Self::Target {
446 &mut self.snapshot
447 }
448}
449
450#[derive(Debug)]
451enum ScanState {
452 Started,
453 Updated {
454 snapshot: LocalSnapshot,
455 changes: UpdatedEntriesSet,
456 barrier: SmallVec<[barrier::Sender; 1]>,
457 scanning: bool,
458 },
459 RootUpdated {
460 new_path: Option<SanitizedPath>,
461 },
462}
463
464struct UpdateObservationState {
465 snapshots_tx: mpsc::UnboundedSender<(LocalSnapshot, UpdatedEntriesSet)>,
466 resume_updates: watch::Sender<()>,
467 _maintain_remote_snapshot: Task<Option<()>>,
468}
469
470#[derive(Clone)]
471pub enum Event {
472 UpdatedEntries(UpdatedEntriesSet),
473 UpdatedGitRepositories(UpdatedGitRepositoriesSet),
474 DeletedEntry(ProjectEntryId),
475}
476
477const EMPTY_PATH: &str = "";
478
479impl EventEmitter<Event> for Worktree {}
480
481impl Worktree {
482 pub async fn local(
483 path: impl Into<Arc<Path>>,
484 visible: bool,
485 fs: Arc<dyn Fs>,
486 next_entry_id: Arc<AtomicUsize>,
487 cx: &mut AsyncApp,
488 ) -> Result<Entity<Self>> {
489 let abs_path = path.into();
490 let metadata = fs
491 .metadata(&abs_path)
492 .await
493 .context("failed to stat worktree path")?;
494
495 let fs_case_sensitive = fs.is_case_sensitive().await.unwrap_or_else(|e| {
496 log::error!(
497 "Failed to determine whether filesystem is case sensitive (falling back to true) due to error: {e:#}"
498 );
499 true
500 });
501
502 let root_file_handle = fs.open_handle(&abs_path).await.log_err();
503
504 cx.new(move |cx: &mut Context<Worktree>| {
505 let mut snapshot = LocalSnapshot {
506 ignores_by_parent_abs_path: Default::default(),
507 git_repositories: Default::default(),
508 snapshot: Snapshot::new(
509 cx.entity_id().as_u64(),
510 abs_path
511 .file_name()
512 .map_or(String::new(), |f| f.to_string_lossy().to_string()),
513 abs_path.clone(),
514 ),
515 root_file_handle,
516 };
517
518 let worktree_id = snapshot.id();
519 let settings_location = Some(SettingsLocation {
520 worktree_id,
521 path: Path::new(EMPTY_PATH),
522 });
523
524 let settings = WorktreeSettings::get(settings_location, cx).clone();
525 cx.observe_global::<SettingsStore>(move |this, cx| {
526 if let Self::Local(this) = this {
527 let settings = WorktreeSettings::get(settings_location, cx).clone();
528 if this.settings != settings {
529 this.settings = settings;
530 this.restart_background_scanners(cx);
531 }
532 }
533 })
534 .detach();
535
536 let share_private_files = false;
537 if let Some(metadata) = metadata {
538 let mut entry = Entry::new(
539 Arc::from(Path::new("")),
540 &metadata,
541 &next_entry_id,
542 snapshot.root_char_bag,
543 None,
544 );
545 if !metadata.is_dir {
546 entry.is_private = !share_private_files
547 && settings.is_path_private(abs_path.file_name().unwrap().as_ref());
548 }
549 snapshot.insert_entry(entry, fs.as_ref());
550 }
551
552 let (scan_requests_tx, scan_requests_rx) = channel::unbounded();
553 let (path_prefixes_to_scan_tx, path_prefixes_to_scan_rx) = channel::unbounded();
554 let mut worktree = LocalWorktree {
555 share_private_files,
556 next_entry_id,
557 snapshot,
558 is_scanning: watch::channel_with(true),
559 update_observer: None,
560 scan_requests_tx,
561 path_prefixes_to_scan_tx,
562 _background_scanner_tasks: Vec::new(),
563 fs,
564 fs_case_sensitive,
565 visible,
566 settings,
567 };
568 worktree.start_background_scanner(scan_requests_rx, path_prefixes_to_scan_rx, cx);
569 Worktree::Local(worktree)
570 })
571 }
572
573 pub fn remote(
574 project_id: u64,
575 replica_id: ReplicaId,
576 worktree: proto::WorktreeMetadata,
577 client: AnyProtoClient,
578 cx: &mut App,
579 ) -> Entity<Self> {
580 cx.new(|cx: &mut Context<Self>| {
581 let snapshot = Snapshot::new(
582 worktree.id,
583 worktree.root_name,
584 Arc::<Path>::from_proto(worktree.abs_path),
585 );
586
587 let background_snapshot = Arc::new(Mutex::new((
588 snapshot.clone(),
589 Vec::<proto::UpdateWorktree>::new(),
590 )));
591 let (background_updates_tx, mut background_updates_rx) =
592 mpsc::unbounded::<proto::UpdateWorktree>();
593 let (mut snapshot_updated_tx, mut snapshot_updated_rx) = watch::channel();
594
595 let worktree_id = snapshot.id();
596 let settings_location = Some(SettingsLocation {
597 worktree_id,
598 path: Path::new(EMPTY_PATH),
599 });
600
601 let settings = WorktreeSettings::get(settings_location, cx).clone();
602 let worktree = RemoteWorktree {
603 client,
604 project_id,
605 replica_id,
606 snapshot,
607 file_scan_inclusions: settings.file_scan_inclusions.clone(),
608 background_snapshot: background_snapshot.clone(),
609 updates_tx: Some(background_updates_tx),
610 update_observer: None,
611 snapshot_subscriptions: Default::default(),
612 visible: worktree.visible,
613 disconnected: false,
614 };
615
616 // Apply updates to a separate snapshot in a background task, then
617 // send them to a foreground task which updates the model.
618 cx.background_spawn(async move {
619 while let Some(update) = background_updates_rx.next().await {
620 {
621 let mut lock = background_snapshot.lock();
622 lock.0
623 .apply_remote_update(update.clone(), &settings.file_scan_inclusions)
624 .log_err();
625 lock.1.push(update);
626 }
627 snapshot_updated_tx.send(()).await.ok();
628 }
629 })
630 .detach();
631
632 // On the foreground task, update to the latest snapshot and notify
633 // any update observer of all updates that led to that snapshot.
634 cx.spawn(async move |this, cx| {
635 while (snapshot_updated_rx.recv().await).is_some() {
636 this.update(cx, |this, cx| {
637 let mut entries_changed = false;
638 let this = this.as_remote_mut().unwrap();
639 {
640 let mut lock = this.background_snapshot.lock();
641 this.snapshot = lock.0.clone();
642 for update in lock.1.drain(..) {
643 entries_changed |= !update.updated_entries.is_empty()
644 || !update.removed_entries.is_empty();
645 if let Some(tx) = &this.update_observer {
646 tx.unbounded_send(update).ok();
647 }
648 }
649 };
650
651 if entries_changed {
652 cx.emit(Event::UpdatedEntries(Arc::default()));
653 }
654 cx.notify();
655 while let Some((scan_id, _)) = this.snapshot_subscriptions.front() {
656 if this.observed_snapshot(*scan_id) {
657 let (_, tx) = this.snapshot_subscriptions.pop_front().unwrap();
658 let _ = tx.send(());
659 } else {
660 break;
661 }
662 }
663 })?;
664 }
665 anyhow::Ok(())
666 })
667 .detach();
668
669 Worktree::Remote(worktree)
670 })
671 }
672
673 pub fn as_local(&self) -> Option<&LocalWorktree> {
674 if let Worktree::Local(worktree) = self {
675 Some(worktree)
676 } else {
677 None
678 }
679 }
680
681 pub fn as_remote(&self) -> Option<&RemoteWorktree> {
682 if let Worktree::Remote(worktree) = self {
683 Some(worktree)
684 } else {
685 None
686 }
687 }
688
689 pub fn as_local_mut(&mut self) -> Option<&mut LocalWorktree> {
690 if let Worktree::Local(worktree) = self {
691 Some(worktree)
692 } else {
693 None
694 }
695 }
696
697 pub fn as_remote_mut(&mut self) -> Option<&mut RemoteWorktree> {
698 if let Worktree::Remote(worktree) = self {
699 Some(worktree)
700 } else {
701 None
702 }
703 }
704
705 pub fn is_local(&self) -> bool {
706 matches!(self, Worktree::Local(_))
707 }
708
709 pub fn is_remote(&self) -> bool {
710 !self.is_local()
711 }
712
713 pub fn settings_location(&self, _: &Context<Self>) -> SettingsLocation<'static> {
714 SettingsLocation {
715 worktree_id: self.id(),
716 path: Path::new(EMPTY_PATH),
717 }
718 }
719
720 pub fn snapshot(&self) -> Snapshot {
721 match self {
722 Worktree::Local(worktree) => worktree.snapshot.snapshot.clone(),
723 Worktree::Remote(worktree) => worktree.snapshot.clone(),
724 }
725 }
726
727 pub fn scan_id(&self) -> usize {
728 match self {
729 Worktree::Local(worktree) => worktree.snapshot.scan_id,
730 Worktree::Remote(worktree) => worktree.snapshot.scan_id,
731 }
732 }
733
734 pub fn metadata_proto(&self) -> proto::WorktreeMetadata {
735 proto::WorktreeMetadata {
736 id: self.id().to_proto(),
737 root_name: self.root_name().to_string(),
738 visible: self.is_visible(),
739 abs_path: self.abs_path().to_proto(),
740 }
741 }
742
743 pub fn completed_scan_id(&self) -> usize {
744 match self {
745 Worktree::Local(worktree) => worktree.snapshot.completed_scan_id,
746 Worktree::Remote(worktree) => worktree.snapshot.completed_scan_id,
747 }
748 }
749
750 pub fn is_visible(&self) -> bool {
751 match self {
752 Worktree::Local(worktree) => worktree.visible,
753 Worktree::Remote(worktree) => worktree.visible,
754 }
755 }
756
757 pub fn replica_id(&self) -> ReplicaId {
758 match self {
759 Worktree::Local(_) => 0,
760 Worktree::Remote(worktree) => worktree.replica_id,
761 }
762 }
763
764 pub fn abs_path(&self) -> Arc<Path> {
765 match self {
766 Worktree::Local(worktree) => worktree.abs_path.clone().into(),
767 Worktree::Remote(worktree) => worktree.abs_path.clone().into(),
768 }
769 }
770
771 pub fn root_file(&self, cx: &Context<Self>) -> Option<Arc<File>> {
772 let entry = self.root_entry()?;
773 Some(File::for_entry(entry.clone(), cx.entity()))
774 }
775
776 pub fn observe_updates<F, Fut>(&mut self, project_id: u64, cx: &Context<Worktree>, callback: F)
777 where
778 F: 'static + Send + Fn(proto::UpdateWorktree) -> Fut,
779 Fut: 'static + Send + Future<Output = bool>,
780 {
781 match self {
782 Worktree::Local(this) => this.observe_updates(project_id, cx, callback),
783 Worktree::Remote(this) => this.observe_updates(project_id, cx, callback),
784 }
785 }
786
787 pub fn stop_observing_updates(&mut self) {
788 match self {
789 Worktree::Local(this) => {
790 this.update_observer.take();
791 }
792 Worktree::Remote(this) => {
793 this.update_observer.take();
794 }
795 }
796 }
797
798 #[cfg(any(test, feature = "test-support"))]
799 pub fn has_update_observer(&self) -> bool {
800 match self {
801 Worktree::Local(this) => this.update_observer.is_some(),
802 Worktree::Remote(this) => this.update_observer.is_some(),
803 }
804 }
805
806 pub fn load_file(&self, path: &Path, cx: &Context<Worktree>) -> Task<Result<LoadedFile>> {
807 match self {
808 Worktree::Local(this) => this.load_file(path, cx),
809 Worktree::Remote(_) => {
810 Task::ready(Err(anyhow!("remote worktrees can't yet load files")))
811 }
812 }
813 }
814
815 pub fn load_binary_file(
816 &self,
817 path: &Path,
818 cx: &Context<Worktree>,
819 ) -> Task<Result<LoadedBinaryFile>> {
820 match self {
821 Worktree::Local(this) => this.load_binary_file(path, cx),
822 Worktree::Remote(_) => {
823 Task::ready(Err(anyhow!("remote worktrees can't yet load binary files")))
824 }
825 }
826 }
827
828 pub fn write_file(
829 &self,
830 path: &Path,
831 text: Rope,
832 line_ending: LineEnding,
833 cx: &Context<Worktree>,
834 ) -> Task<Result<Arc<File>>> {
835 match self {
836 Worktree::Local(this) => this.write_file(path, text, line_ending, cx),
837 Worktree::Remote(_) => {
838 Task::ready(Err(anyhow!("remote worktree can't yet write files")))
839 }
840 }
841 }
842
843 pub fn create_entry(
844 &mut self,
845 path: impl Into<Arc<Path>>,
846 is_directory: bool,
847 content: Option<Vec<u8>>,
848 cx: &Context<Worktree>,
849 ) -> Task<Result<CreatedEntry>> {
850 let path: Arc<Path> = path.into();
851 let worktree_id = self.id();
852 match self {
853 Worktree::Local(this) => this.create_entry(path, is_directory, content, cx),
854 Worktree::Remote(this) => {
855 let project_id = this.project_id;
856 let request = this.client.request(proto::CreateProjectEntry {
857 worktree_id: worktree_id.to_proto(),
858 project_id,
859 path: path.as_ref().to_proto(),
860 content,
861 is_directory,
862 });
863 cx.spawn(async move |this, cx| {
864 let response = request.await?;
865 match response.entry {
866 Some(entry) => this
867 .update(cx, |worktree, cx| {
868 worktree.as_remote_mut().unwrap().insert_entry(
869 entry,
870 response.worktree_scan_id as usize,
871 cx,
872 )
873 })?
874 .await
875 .map(CreatedEntry::Included),
876 None => {
877 let abs_path = this.read_with(cx, |worktree, _| {
878 worktree
879 .absolutize(&path)
880 .with_context(|| format!("absolutizing {path:?}"))
881 })??;
882 Ok(CreatedEntry::Excluded { abs_path })
883 }
884 }
885 })
886 }
887 }
888 }
889
890 pub fn delete_entry(
891 &mut self,
892 entry_id: ProjectEntryId,
893 trash: bool,
894 cx: &mut Context<Worktree>,
895 ) -> Option<Task<Result<()>>> {
896 let task = match self {
897 Worktree::Local(this) => this.delete_entry(entry_id, trash, cx),
898 Worktree::Remote(this) => this.delete_entry(entry_id, trash, cx),
899 }?;
900
901 let entry = match &*self {
902 Worktree::Local(this) => this.entry_for_id(entry_id),
903 Worktree::Remote(this) => this.entry_for_id(entry_id),
904 }?;
905
906 let mut ids = vec![entry_id];
907 let path = &*entry.path;
908
909 self.get_children_ids_recursive(path, &mut ids);
910
911 for id in ids {
912 cx.emit(Event::DeletedEntry(id));
913 }
914 Some(task)
915 }
916
917 fn get_children_ids_recursive(&self, path: &Path, ids: &mut Vec<ProjectEntryId>) {
918 let children_iter = self.child_entries(path);
919 for child in children_iter {
920 ids.push(child.id);
921 self.get_children_ids_recursive(&child.path, ids);
922 }
923 }
924
925 pub fn rename_entry(
926 &mut self,
927 entry_id: ProjectEntryId,
928 new_path: impl Into<Arc<Path>>,
929 cx: &Context<Self>,
930 ) -> Task<Result<CreatedEntry>> {
931 let new_path = new_path.into();
932 match self {
933 Worktree::Local(this) => this.rename_entry(entry_id, new_path, cx),
934 Worktree::Remote(this) => this.rename_entry(entry_id, new_path, cx),
935 }
936 }
937
938 pub fn copy_entry(
939 &mut self,
940 entry_id: ProjectEntryId,
941 relative_worktree_source_path: Option<PathBuf>,
942 new_path: impl Into<Arc<Path>>,
943 cx: &Context<Self>,
944 ) -> Task<Result<Option<Entry>>> {
945 let new_path: Arc<Path> = new_path.into();
946 match self {
947 Worktree::Local(this) => {
948 this.copy_entry(entry_id, relative_worktree_source_path, new_path, cx)
949 }
950 Worktree::Remote(this) => {
951 let relative_worktree_source_path = relative_worktree_source_path
952 .map(|relative_worktree_source_path| relative_worktree_source_path.to_proto());
953 let response = this.client.request(proto::CopyProjectEntry {
954 project_id: this.project_id,
955 entry_id: entry_id.to_proto(),
956 relative_worktree_source_path,
957 new_path: new_path.to_proto(),
958 });
959 cx.spawn(async move |this, cx| {
960 let response = response.await?;
961 match response.entry {
962 Some(entry) => this
963 .update(cx, |worktree, cx| {
964 worktree.as_remote_mut().unwrap().insert_entry(
965 entry,
966 response.worktree_scan_id as usize,
967 cx,
968 )
969 })?
970 .await
971 .map(Some),
972 None => Ok(None),
973 }
974 })
975 }
976 }
977 }
978
979 pub fn copy_external_entries(
980 &mut self,
981 target_directory: Arc<Path>,
982 paths: Vec<Arc<Path>>,
983 fs: Arc<dyn Fs>,
984 cx: &Context<Worktree>,
985 ) -> Task<Result<Vec<ProjectEntryId>>> {
986 match self {
987 Worktree::Local(this) => this.copy_external_entries(target_directory, paths, cx),
988 Worktree::Remote(this) => this.copy_external_entries(target_directory, paths, fs, cx),
989 }
990 }
991
992 pub fn expand_entry(
993 &mut self,
994 entry_id: ProjectEntryId,
995 cx: &Context<Worktree>,
996 ) -> Option<Task<Result<()>>> {
997 match self {
998 Worktree::Local(this) => this.expand_entry(entry_id, cx),
999 Worktree::Remote(this) => {
1000 let response = this.client.request(proto::ExpandProjectEntry {
1001 project_id: this.project_id,
1002 entry_id: entry_id.to_proto(),
1003 });
1004 Some(cx.spawn(async move |this, cx| {
1005 let response = response.await?;
1006 this.update(cx, |this, _| {
1007 this.as_remote_mut()
1008 .unwrap()
1009 .wait_for_snapshot(response.worktree_scan_id as usize)
1010 })?
1011 .await?;
1012 Ok(())
1013 }))
1014 }
1015 }
1016 }
1017
1018 pub fn expand_all_for_entry(
1019 &mut self,
1020 entry_id: ProjectEntryId,
1021 cx: &Context<Worktree>,
1022 ) -> Option<Task<Result<()>>> {
1023 match self {
1024 Worktree::Local(this) => this.expand_all_for_entry(entry_id, cx),
1025 Worktree::Remote(this) => {
1026 let response = this.client.request(proto::ExpandAllForProjectEntry {
1027 project_id: this.project_id,
1028 entry_id: entry_id.to_proto(),
1029 });
1030 Some(cx.spawn(async move |this, cx| {
1031 let response = response.await?;
1032 this.update(cx, |this, _| {
1033 this.as_remote_mut()
1034 .unwrap()
1035 .wait_for_snapshot(response.worktree_scan_id as usize)
1036 })?
1037 .await?;
1038 Ok(())
1039 }))
1040 }
1041 }
1042 }
1043
1044 pub async fn handle_create_entry(
1045 this: Entity<Self>,
1046 request: proto::CreateProjectEntry,
1047 mut cx: AsyncApp,
1048 ) -> Result<proto::ProjectEntryResponse> {
1049 let (scan_id, entry) = this.update(&mut cx, |this, cx| {
1050 (
1051 this.scan_id(),
1052 this.create_entry(
1053 Arc::<Path>::from_proto(request.path),
1054 request.is_directory,
1055 request.content,
1056 cx,
1057 ),
1058 )
1059 })?;
1060 Ok(proto::ProjectEntryResponse {
1061 entry: match &entry.await? {
1062 CreatedEntry::Included(entry) => Some(entry.into()),
1063 CreatedEntry::Excluded { .. } => None,
1064 },
1065 worktree_scan_id: scan_id as u64,
1066 })
1067 }
1068
1069 pub async fn handle_delete_entry(
1070 this: Entity<Self>,
1071 request: proto::DeleteProjectEntry,
1072 mut cx: AsyncApp,
1073 ) -> Result<proto::ProjectEntryResponse> {
1074 let (scan_id, task) = this.update(&mut cx, |this, cx| {
1075 (
1076 this.scan_id(),
1077 this.delete_entry(
1078 ProjectEntryId::from_proto(request.entry_id),
1079 request.use_trash,
1080 cx,
1081 ),
1082 )
1083 })?;
1084 task.context("invalid entry")?.await?;
1085 Ok(proto::ProjectEntryResponse {
1086 entry: None,
1087 worktree_scan_id: scan_id as u64,
1088 })
1089 }
1090
1091 pub async fn handle_expand_entry(
1092 this: Entity<Self>,
1093 request: proto::ExpandProjectEntry,
1094 mut cx: AsyncApp,
1095 ) -> Result<proto::ExpandProjectEntryResponse> {
1096 let task = this.update(&mut cx, |this, cx| {
1097 this.expand_entry(ProjectEntryId::from_proto(request.entry_id), cx)
1098 })?;
1099 task.context("no such entry")?.await?;
1100 let scan_id = this.read_with(&cx, |this, _| this.scan_id())?;
1101 Ok(proto::ExpandProjectEntryResponse {
1102 worktree_scan_id: scan_id as u64,
1103 })
1104 }
1105
1106 pub async fn handle_expand_all_for_entry(
1107 this: Entity<Self>,
1108 request: proto::ExpandAllForProjectEntry,
1109 mut cx: AsyncApp,
1110 ) -> Result<proto::ExpandAllForProjectEntryResponse> {
1111 let task = this.update(&mut cx, |this, cx| {
1112 this.expand_all_for_entry(ProjectEntryId::from_proto(request.entry_id), cx)
1113 })?;
1114 task.context("no such entry")?.await?;
1115 let scan_id = this.read_with(&cx, |this, _| this.scan_id())?;
1116 Ok(proto::ExpandAllForProjectEntryResponse {
1117 worktree_scan_id: scan_id as u64,
1118 })
1119 }
1120
1121 pub async fn handle_rename_entry(
1122 this: Entity<Self>,
1123 request: proto::RenameProjectEntry,
1124 mut cx: AsyncApp,
1125 ) -> Result<proto::ProjectEntryResponse> {
1126 let (scan_id, task) = this.update(&mut cx, |this, cx| {
1127 (
1128 this.scan_id(),
1129 this.rename_entry(
1130 ProjectEntryId::from_proto(request.entry_id),
1131 Arc::<Path>::from_proto(request.new_path),
1132 cx,
1133 ),
1134 )
1135 })?;
1136 Ok(proto::ProjectEntryResponse {
1137 entry: match &task.await? {
1138 CreatedEntry::Included(entry) => Some(entry.into()),
1139 CreatedEntry::Excluded { .. } => None,
1140 },
1141 worktree_scan_id: scan_id as u64,
1142 })
1143 }
1144
1145 pub async fn handle_copy_entry(
1146 this: Entity<Self>,
1147 request: proto::CopyProjectEntry,
1148 mut cx: AsyncApp,
1149 ) -> Result<proto::ProjectEntryResponse> {
1150 let (scan_id, task) = this.update(&mut cx, |this, cx| {
1151 let relative_worktree_source_path = request
1152 .relative_worktree_source_path
1153 .map(PathBuf::from_proto);
1154 (
1155 this.scan_id(),
1156 this.copy_entry(
1157 ProjectEntryId::from_proto(request.entry_id),
1158 relative_worktree_source_path,
1159 PathBuf::from_proto(request.new_path),
1160 cx,
1161 ),
1162 )
1163 })?;
1164 Ok(proto::ProjectEntryResponse {
1165 entry: task.await?.as_ref().map(|e| e.into()),
1166 worktree_scan_id: scan_id as u64,
1167 })
1168 }
1169
1170 pub fn dot_git_abs_path(&self, work_directory: &WorkDirectory) -> PathBuf {
1171 let mut path = match work_directory {
1172 WorkDirectory::InProject { relative_path } => self.abs_path().join(relative_path),
1173 WorkDirectory::AboveProject { absolute_path, .. } => absolute_path.as_ref().to_owned(),
1174 };
1175 path.push(".git");
1176 path
1177 }
1178
1179 pub fn is_single_file(&self) -> bool {
1180 self.root_dir().is_none()
1181 }
1182
1183 /// For visible worktrees, returns the path with the worktree name as the first component.
1184 /// Otherwise, returns an absolute path.
1185 pub fn full_path(&self, worktree_relative_path: &Path) -> PathBuf {
1186 let mut full_path = PathBuf::new();
1187
1188 if self.is_visible() {
1189 full_path.push(self.root_name());
1190 } else {
1191 let path = self.abs_path();
1192
1193 if self.is_local() && path.starts_with(home_dir().as_path()) {
1194 full_path.push("~");
1195 full_path.push(path.strip_prefix(home_dir().as_path()).unwrap());
1196 } else {
1197 full_path.push(path)
1198 }
1199 }
1200
1201 if worktree_relative_path.components().next().is_some() {
1202 full_path.push(&worktree_relative_path);
1203 }
1204
1205 full_path
1206 }
1207}
1208
1209impl LocalWorktree {
1210 pub fn fs(&self) -> &Arc<dyn Fs> {
1211 &self.fs
1212 }
1213
1214 pub fn is_path_private(&self, path: &Path) -> bool {
1215 !self.share_private_files && self.settings.is_path_private(path)
1216 }
1217
1218 fn restart_background_scanners(&mut self, cx: &Context<Worktree>) {
1219 let (scan_requests_tx, scan_requests_rx) = channel::unbounded();
1220 let (path_prefixes_to_scan_tx, path_prefixes_to_scan_rx) = channel::unbounded();
1221 self.scan_requests_tx = scan_requests_tx;
1222 self.path_prefixes_to_scan_tx = path_prefixes_to_scan_tx;
1223
1224 self.start_background_scanner(scan_requests_rx, path_prefixes_to_scan_rx, cx);
1225 let always_included_entries = mem::take(&mut self.snapshot.always_included_entries);
1226 log::debug!(
1227 "refreshing entries for the following always included paths: {:?}",
1228 always_included_entries
1229 );
1230
1231 // Cleans up old always included entries to ensure they get updated properly. Otherwise,
1232 // nested always included entries may not get updated and will result in out-of-date info.
1233 self.refresh_entries_for_paths(always_included_entries);
1234 }
1235
1236 fn start_background_scanner(
1237 &mut self,
1238 scan_requests_rx: channel::Receiver<ScanRequest>,
1239 path_prefixes_to_scan_rx: channel::Receiver<PathPrefixScanRequest>,
1240 cx: &Context<Worktree>,
1241 ) {
1242 let snapshot = self.snapshot();
1243 let share_private_files = self.share_private_files;
1244 let next_entry_id = self.next_entry_id.clone();
1245 let fs = self.fs.clone();
1246 let settings = self.settings.clone();
1247 let (scan_states_tx, mut scan_states_rx) = mpsc::unbounded();
1248 let background_scanner = cx.background_spawn({
1249 let abs_path = snapshot.abs_path.as_path().to_path_buf();
1250 let background = cx.background_executor().clone();
1251 async move {
1252 let (events, watcher) = fs.watch(&abs_path, FS_WATCH_LATENCY).await;
1253 let fs_case_sensitive = fs.is_case_sensitive().await.unwrap_or_else(|e| {
1254 log::error!("Failed to determine whether filesystem is case sensitive: {e:#}");
1255 true
1256 });
1257
1258 let mut scanner = BackgroundScanner {
1259 fs,
1260 fs_case_sensitive,
1261 status_updates_tx: scan_states_tx,
1262 executor: background,
1263 scan_requests_rx,
1264 path_prefixes_to_scan_rx,
1265 next_entry_id,
1266 state: Mutex::new(BackgroundScannerState {
1267 prev_snapshot: snapshot.snapshot.clone(),
1268 snapshot,
1269 scanned_dirs: Default::default(),
1270 path_prefixes_to_scan: Default::default(),
1271 paths_to_scan: Default::default(),
1272 removed_entries: Default::default(),
1273 changed_paths: Default::default(),
1274 }),
1275 phase: BackgroundScannerPhase::InitialScan,
1276 share_private_files,
1277 settings,
1278 watcher,
1279 };
1280
1281 scanner
1282 .run(Box::pin(events.map(|events| events.into_iter().collect())))
1283 .await;
1284 }
1285 });
1286 let scan_state_updater = cx.spawn(async move |this, cx| {
1287 while let Some((state, this)) = scan_states_rx.next().await.zip(this.upgrade()) {
1288 this.update(cx, |this, cx| {
1289 let this = this.as_local_mut().unwrap();
1290 match state {
1291 ScanState::Started => {
1292 *this.is_scanning.0.borrow_mut() = true;
1293 }
1294 ScanState::Updated {
1295 snapshot,
1296 changes,
1297 barrier,
1298 scanning,
1299 } => {
1300 *this.is_scanning.0.borrow_mut() = scanning;
1301 this.set_snapshot(snapshot, changes, cx);
1302 drop(barrier);
1303 }
1304 ScanState::RootUpdated { new_path } => {
1305 this.update_abs_path_and_refresh(new_path, cx);
1306 }
1307 }
1308 })
1309 .ok();
1310 }
1311 });
1312 self._background_scanner_tasks = vec![background_scanner, scan_state_updater];
1313 self.is_scanning = watch::channel_with(true);
1314 }
1315
1316 fn set_snapshot(
1317 &mut self,
1318 mut new_snapshot: LocalSnapshot,
1319 entry_changes: UpdatedEntriesSet,
1320 cx: &mut Context<Worktree>,
1321 ) {
1322 let repo_changes = self.changed_repos(&self.snapshot, &mut new_snapshot);
1323 self.snapshot = new_snapshot;
1324
1325 if let Some(share) = self.update_observer.as_mut() {
1326 share
1327 .snapshots_tx
1328 .unbounded_send((self.snapshot.clone(), entry_changes.clone()))
1329 .ok();
1330 }
1331
1332 if !entry_changes.is_empty() {
1333 cx.emit(Event::UpdatedEntries(entry_changes));
1334 }
1335 if !repo_changes.is_empty() {
1336 cx.emit(Event::UpdatedGitRepositories(repo_changes));
1337 }
1338 }
1339
1340 fn changed_repos(
1341 &self,
1342 old_snapshot: &LocalSnapshot,
1343 new_snapshot: &mut LocalSnapshot,
1344 ) -> UpdatedGitRepositoriesSet {
1345 let mut changes = Vec::new();
1346 let mut old_repos = old_snapshot.git_repositories.iter().peekable();
1347 let new_repos = new_snapshot.git_repositories.clone();
1348 let mut new_repos = new_repos.iter().peekable();
1349
1350 loop {
1351 match (new_repos.peek().map(clone), old_repos.peek().map(clone)) {
1352 (Some((new_entry_id, new_repo)), Some((old_entry_id, old_repo))) => {
1353 match Ord::cmp(&new_entry_id, &old_entry_id) {
1354 Ordering::Less => {
1355 changes.push(UpdatedGitRepository {
1356 work_directory_id: new_entry_id,
1357 old_work_directory_abs_path: None,
1358 new_work_directory_abs_path: Some(
1359 new_repo.work_directory_abs_path.clone(),
1360 ),
1361 dot_git_abs_path: Some(new_repo.dot_git_abs_path.clone()),
1362 repository_dir_abs_path: Some(
1363 new_repo.repository_dir_abs_path.clone(),
1364 ),
1365 common_dir_abs_path: Some(new_repo.common_dir_abs_path.clone()),
1366 });
1367 new_repos.next();
1368 }
1369 Ordering::Equal => {
1370 if new_repo.git_dir_scan_id != old_repo.git_dir_scan_id
1371 || new_repo.work_directory_abs_path
1372 != old_repo.work_directory_abs_path
1373 {
1374 changes.push(UpdatedGitRepository {
1375 work_directory_id: new_entry_id,
1376 old_work_directory_abs_path: Some(
1377 old_repo.work_directory_abs_path.clone(),
1378 ),
1379 new_work_directory_abs_path: Some(
1380 new_repo.work_directory_abs_path.clone(),
1381 ),
1382 dot_git_abs_path: Some(new_repo.dot_git_abs_path.clone()),
1383 repository_dir_abs_path: Some(
1384 new_repo.repository_dir_abs_path.clone(),
1385 ),
1386 common_dir_abs_path: Some(new_repo.common_dir_abs_path.clone()),
1387 });
1388 }
1389 new_repos.next();
1390 old_repos.next();
1391 }
1392 Ordering::Greater => {
1393 changes.push(UpdatedGitRepository {
1394 work_directory_id: old_entry_id,
1395 old_work_directory_abs_path: Some(
1396 old_repo.work_directory_abs_path.clone(),
1397 ),
1398 new_work_directory_abs_path: None,
1399 dot_git_abs_path: None,
1400 repository_dir_abs_path: None,
1401 common_dir_abs_path: None,
1402 });
1403 old_repos.next();
1404 }
1405 }
1406 }
1407 (Some((entry_id, repo)), None) => {
1408 changes.push(UpdatedGitRepository {
1409 work_directory_id: entry_id,
1410 old_work_directory_abs_path: None,
1411 new_work_directory_abs_path: Some(repo.work_directory_abs_path.clone()),
1412 dot_git_abs_path: Some(repo.dot_git_abs_path.clone()),
1413 repository_dir_abs_path: Some(repo.repository_dir_abs_path.clone()),
1414 common_dir_abs_path: Some(repo.common_dir_abs_path.clone()),
1415 });
1416 new_repos.next();
1417 }
1418 (None, Some((entry_id, repo))) => {
1419 changes.push(UpdatedGitRepository {
1420 work_directory_id: entry_id,
1421 old_work_directory_abs_path: Some(repo.work_directory_abs_path.clone()),
1422 new_work_directory_abs_path: None,
1423 dot_git_abs_path: Some(repo.dot_git_abs_path.clone()),
1424 repository_dir_abs_path: Some(repo.repository_dir_abs_path.clone()),
1425 common_dir_abs_path: Some(repo.common_dir_abs_path.clone()),
1426 });
1427 old_repos.next();
1428 }
1429 (None, None) => break,
1430 }
1431 }
1432
1433 fn clone<T: Clone, U: Clone>(value: &(&T, &U)) -> (T, U) {
1434 (value.0.clone(), value.1.clone())
1435 }
1436
1437 changes.into()
1438 }
1439
1440 pub fn scan_complete(&self) -> impl Future<Output = ()> + use<> {
1441 let mut is_scanning_rx = self.is_scanning.1.clone();
1442 async move {
1443 let mut is_scanning = *is_scanning_rx.borrow();
1444 while is_scanning {
1445 if let Some(value) = is_scanning_rx.recv().await {
1446 is_scanning = value;
1447 } else {
1448 break;
1449 }
1450 }
1451 }
1452 }
1453
1454 pub fn snapshot(&self) -> LocalSnapshot {
1455 self.snapshot.clone()
1456 }
1457
1458 pub fn settings(&self) -> WorktreeSettings {
1459 self.settings.clone()
1460 }
1461
1462 fn load_binary_file(
1463 &self,
1464 path: &Path,
1465 cx: &Context<Worktree>,
1466 ) -> Task<Result<LoadedBinaryFile>> {
1467 let path = Arc::from(path);
1468 let abs_path = self.absolutize(&path);
1469 let fs = self.fs.clone();
1470 let entry = self.refresh_entry(path.clone(), None, cx);
1471 let is_private = self.is_path_private(path.as_ref());
1472
1473 let worktree = cx.weak_entity();
1474 cx.background_spawn(async move {
1475 let abs_path = abs_path?;
1476 let content = fs.load_bytes(&abs_path).await?;
1477
1478 let worktree = worktree.upgrade().context("worktree was dropped")?;
1479 let file = match entry.await? {
1480 Some(entry) => File::for_entry(entry, worktree),
1481 None => {
1482 let metadata = fs
1483 .metadata(&abs_path)
1484 .await
1485 .with_context(|| {
1486 format!("Loading metadata for excluded file {abs_path:?}")
1487 })?
1488 .with_context(|| {
1489 format!("Excluded file {abs_path:?} got removed during loading")
1490 })?;
1491 Arc::new(File {
1492 entry_id: None,
1493 worktree,
1494 path,
1495 disk_state: DiskState::Present {
1496 mtime: metadata.mtime,
1497 },
1498 is_local: true,
1499 is_private,
1500 })
1501 }
1502 };
1503
1504 Ok(LoadedBinaryFile { file, content })
1505 })
1506 }
1507
1508 fn load_file(&self, path: &Path, cx: &Context<Worktree>) -> Task<Result<LoadedFile>> {
1509 let path = Arc::from(path);
1510 let abs_path = self.absolutize(&path);
1511 let fs = self.fs.clone();
1512 let entry = self.refresh_entry(path.clone(), None, cx);
1513 let is_private = self.is_path_private(path.as_ref());
1514
1515 cx.spawn(async move |this, _cx| {
1516 let abs_path = abs_path?;
1517 // WARN: Temporary workaround for #27283.
1518 // We are not efficient with our memory usage per file, and use in excess of 64GB for a 10GB file
1519 // Therefore, as a temporary workaround to prevent system freezes, we just bail before opening a file
1520 // if it is too large
1521 // 5GB seems to be more reasonable, peaking at ~16GB, while 6GB jumps up to >24GB which seems like a
1522 // reasonable limit
1523 {
1524 const FILE_SIZE_MAX: u64 = 6 * 1024 * 1024 * 1024; // 6GB
1525 if let Ok(Some(metadata)) = fs.metadata(&abs_path).await {
1526 if metadata.len >= FILE_SIZE_MAX {
1527 anyhow::bail!("File is too large to load");
1528 }
1529 }
1530 }
1531 let text = fs.load(&abs_path).await?;
1532
1533 let worktree = this.upgrade().context("worktree was dropped")?;
1534 let file = match entry.await? {
1535 Some(entry) => File::for_entry(entry, worktree),
1536 None => {
1537 let metadata = fs
1538 .metadata(&abs_path)
1539 .await
1540 .with_context(|| {
1541 format!("Loading metadata for excluded file {abs_path:?}")
1542 })?
1543 .with_context(|| {
1544 format!("Excluded file {abs_path:?} got removed during loading")
1545 })?;
1546 Arc::new(File {
1547 entry_id: None,
1548 worktree,
1549 path,
1550 disk_state: DiskState::Present {
1551 mtime: metadata.mtime,
1552 },
1553 is_local: true,
1554 is_private,
1555 })
1556 }
1557 };
1558
1559 Ok(LoadedFile { file, text })
1560 })
1561 }
1562
1563 /// Find the lowest path in the worktree's datastructures that is an ancestor
1564 fn lowest_ancestor(&self, path: &Path) -> PathBuf {
1565 let mut lowest_ancestor = None;
1566 for path in path.ancestors() {
1567 if self.entry_for_path(path).is_some() {
1568 lowest_ancestor = Some(path.to_path_buf());
1569 break;
1570 }
1571 }
1572
1573 lowest_ancestor.unwrap_or_else(|| PathBuf::from(""))
1574 }
1575
1576 fn create_entry(
1577 &self,
1578 path: impl Into<Arc<Path>>,
1579 is_dir: bool,
1580 content: Option<Vec<u8>>,
1581 cx: &Context<Worktree>,
1582 ) -> Task<Result<CreatedEntry>> {
1583 let path = path.into();
1584 let abs_path = match self.absolutize(&path) {
1585 Ok(path) => path,
1586 Err(e) => return Task::ready(Err(e.context(format!("absolutizing path {path:?}")))),
1587 };
1588 let path_excluded = self.settings.is_path_excluded(&abs_path);
1589 let fs = self.fs.clone();
1590 let task_abs_path = abs_path.clone();
1591 let write = cx.background_spawn(async move {
1592 if is_dir {
1593 fs.create_dir(&task_abs_path)
1594 .await
1595 .with_context(|| format!("creating directory {task_abs_path:?}"))
1596 } else {
1597 fs.write(&task_abs_path, content.as_deref().unwrap_or(&[]))
1598 .await
1599 .with_context(|| format!("creating file {task_abs_path:?}"))
1600 }
1601 });
1602
1603 let lowest_ancestor = self.lowest_ancestor(&path);
1604 cx.spawn(async move |this, cx| {
1605 write.await?;
1606 if path_excluded {
1607 return Ok(CreatedEntry::Excluded { abs_path });
1608 }
1609
1610 let (result, refreshes) = this.update(cx, |this, cx| {
1611 let mut refreshes = Vec::new();
1612 let refresh_paths = path.strip_prefix(&lowest_ancestor).unwrap();
1613 for refresh_path in refresh_paths.ancestors() {
1614 if refresh_path == Path::new("") {
1615 continue;
1616 }
1617 let refresh_full_path = lowest_ancestor.join(refresh_path);
1618
1619 refreshes.push(this.as_local_mut().unwrap().refresh_entry(
1620 refresh_full_path.into(),
1621 None,
1622 cx,
1623 ));
1624 }
1625 (
1626 this.as_local_mut().unwrap().refresh_entry(path, None, cx),
1627 refreshes,
1628 )
1629 })?;
1630 for refresh in refreshes {
1631 refresh.await.log_err();
1632 }
1633
1634 Ok(result
1635 .await?
1636 .map(CreatedEntry::Included)
1637 .unwrap_or_else(|| CreatedEntry::Excluded { abs_path }))
1638 })
1639 }
1640
1641 fn write_file(
1642 &self,
1643 path: impl Into<Arc<Path>>,
1644 text: Rope,
1645 line_ending: LineEnding,
1646 cx: &Context<Worktree>,
1647 ) -> Task<Result<Arc<File>>> {
1648 let path = path.into();
1649 let fs = self.fs.clone();
1650 let is_private = self.is_path_private(&path);
1651 let Ok(abs_path) = self.absolutize(&path) else {
1652 return Task::ready(Err(anyhow!("invalid path {path:?}")));
1653 };
1654
1655 let write = cx.background_spawn({
1656 let fs = fs.clone();
1657 let abs_path = abs_path.clone();
1658 async move { fs.save(&abs_path, &text, line_ending).await }
1659 });
1660
1661 cx.spawn(async move |this, cx| {
1662 write.await?;
1663 let entry = this
1664 .update(cx, |this, cx| {
1665 this.as_local_mut()
1666 .unwrap()
1667 .refresh_entry(path.clone(), None, cx)
1668 })?
1669 .await?;
1670 let worktree = this.upgrade().context("worktree dropped")?;
1671 if let Some(entry) = entry {
1672 Ok(File::for_entry(entry, worktree))
1673 } else {
1674 let metadata = fs
1675 .metadata(&abs_path)
1676 .await
1677 .with_context(|| {
1678 format!("Fetching metadata after saving the excluded buffer {abs_path:?}")
1679 })?
1680 .with_context(|| {
1681 format!("Excluded buffer {path:?} got removed during saving")
1682 })?;
1683 Ok(Arc::new(File {
1684 worktree,
1685 path,
1686 disk_state: DiskState::Present {
1687 mtime: metadata.mtime,
1688 },
1689 entry_id: None,
1690 is_local: true,
1691 is_private,
1692 }))
1693 }
1694 })
1695 }
1696
1697 fn delete_entry(
1698 &self,
1699 entry_id: ProjectEntryId,
1700 trash: bool,
1701 cx: &Context<Worktree>,
1702 ) -> Option<Task<Result<()>>> {
1703 let entry = self.entry_for_id(entry_id)?.clone();
1704 let abs_path = self.absolutize(&entry.path);
1705 let fs = self.fs.clone();
1706
1707 let delete = cx.background_spawn(async move {
1708 if entry.is_file() {
1709 if trash {
1710 fs.trash_file(&abs_path?, Default::default()).await?;
1711 } else {
1712 fs.remove_file(&abs_path?, Default::default()).await?;
1713 }
1714 } else if trash {
1715 fs.trash_dir(
1716 &abs_path?,
1717 RemoveOptions {
1718 recursive: true,
1719 ignore_if_not_exists: false,
1720 },
1721 )
1722 .await?;
1723 } else {
1724 fs.remove_dir(
1725 &abs_path?,
1726 RemoveOptions {
1727 recursive: true,
1728 ignore_if_not_exists: false,
1729 },
1730 )
1731 .await?;
1732 }
1733 anyhow::Ok(entry.path)
1734 });
1735
1736 Some(cx.spawn(async move |this, cx| {
1737 let path = delete.await?;
1738 this.update(cx, |this, _| {
1739 this.as_local_mut()
1740 .unwrap()
1741 .refresh_entries_for_paths(vec![path])
1742 })?
1743 .recv()
1744 .await;
1745 Ok(())
1746 }))
1747 }
1748
1749 /// Rename an entry.
1750 ///
1751 /// `new_path` is the new relative path to the worktree root.
1752 /// If the root entry is renamed then `new_path` is the new root name instead.
1753 fn rename_entry(
1754 &self,
1755 entry_id: ProjectEntryId,
1756 new_path: impl Into<Arc<Path>>,
1757 cx: &Context<Worktree>,
1758 ) -> Task<Result<CreatedEntry>> {
1759 let old_path = match self.entry_for_id(entry_id) {
1760 Some(entry) => entry.path.clone(),
1761 None => return Task::ready(Err(anyhow!("no entry to rename for id {entry_id:?}"))),
1762 };
1763 let new_path = new_path.into();
1764 let abs_old_path = self.absolutize(&old_path);
1765
1766 let is_root_entry = self.root_entry().is_some_and(|e| e.id == entry_id);
1767 let abs_new_path = if is_root_entry {
1768 let Some(root_parent_path) = self.abs_path().parent() else {
1769 return Task::ready(Err(anyhow!("no parent for path {:?}", self.abs_path)));
1770 };
1771 root_parent_path.join(&new_path)
1772 } else {
1773 let Ok(absolutize_path) = self.absolutize(&new_path) else {
1774 return Task::ready(Err(anyhow!("absolutizing path {new_path:?}")));
1775 };
1776 absolutize_path
1777 };
1778 let abs_path = abs_new_path.clone();
1779 let fs = self.fs.clone();
1780 let case_sensitive = self.fs_case_sensitive;
1781 let rename = cx.background_spawn(async move {
1782 let abs_old_path = abs_old_path?;
1783 let abs_new_path = abs_new_path;
1784
1785 let abs_old_path_lower = abs_old_path.to_str().map(|p| p.to_lowercase());
1786 let abs_new_path_lower = abs_new_path.to_str().map(|p| p.to_lowercase());
1787
1788 // If we're on a case-insensitive FS and we're doing a case-only rename (i.e. `foobar` to `FOOBAR`)
1789 // we want to overwrite, because otherwise we run into a file-already-exists error.
1790 let overwrite = !case_sensitive
1791 && abs_old_path != abs_new_path
1792 && abs_old_path_lower == abs_new_path_lower;
1793
1794 fs.rename(
1795 &abs_old_path,
1796 &abs_new_path,
1797 fs::RenameOptions {
1798 overwrite,
1799 ..Default::default()
1800 },
1801 )
1802 .await
1803 .with_context(|| format!("Renaming {abs_old_path:?} into {abs_new_path:?}"))
1804 });
1805
1806 cx.spawn(async move |this, cx| {
1807 rename.await?;
1808 Ok(this
1809 .update(cx, |this, cx| {
1810 let local = this.as_local_mut().unwrap();
1811 if is_root_entry {
1812 // We eagerly update `abs_path` and refresh this worktree.
1813 // Otherwise, the FS watcher would do it on the `RootUpdated` event,
1814 // but with a noticeable delay, so we handle it proactively.
1815 local.update_abs_path_and_refresh(
1816 Some(SanitizedPath::from(abs_path.clone())),
1817 cx,
1818 );
1819 Task::ready(Ok(this.root_entry().cloned()))
1820 } else {
1821 local.refresh_entry(new_path.clone(), Some(old_path), cx)
1822 }
1823 })?
1824 .await?
1825 .map(CreatedEntry::Included)
1826 .unwrap_or_else(|| CreatedEntry::Excluded { abs_path }))
1827 })
1828 }
1829
1830 fn copy_entry(
1831 &self,
1832 entry_id: ProjectEntryId,
1833 relative_worktree_source_path: Option<PathBuf>,
1834 new_path: impl Into<Arc<Path>>,
1835 cx: &Context<Worktree>,
1836 ) -> Task<Result<Option<Entry>>> {
1837 let old_path = match self.entry_for_id(entry_id) {
1838 Some(entry) => entry.path.clone(),
1839 None => return Task::ready(Ok(None)),
1840 };
1841 let new_path = new_path.into();
1842 let abs_old_path =
1843 if let Some(relative_worktree_source_path) = relative_worktree_source_path {
1844 Ok(self.abs_path().join(relative_worktree_source_path))
1845 } else {
1846 self.absolutize(&old_path)
1847 };
1848 let abs_new_path = self.absolutize(&new_path);
1849 let fs = self.fs.clone();
1850 let copy = cx.background_spawn(async move {
1851 copy_recursive(
1852 fs.as_ref(),
1853 &abs_old_path?,
1854 &abs_new_path?,
1855 Default::default(),
1856 )
1857 .await
1858 });
1859
1860 cx.spawn(async move |this, cx| {
1861 copy.await?;
1862 this.update(cx, |this, cx| {
1863 this.as_local_mut()
1864 .unwrap()
1865 .refresh_entry(new_path.clone(), None, cx)
1866 })?
1867 .await
1868 })
1869 }
1870
1871 pub fn copy_external_entries(
1872 &self,
1873 target_directory: Arc<Path>,
1874 paths: Vec<Arc<Path>>,
1875 cx: &Context<Worktree>,
1876 ) -> Task<Result<Vec<ProjectEntryId>>> {
1877 let Ok(target_directory) = self.absolutize(&target_directory) else {
1878 return Task::ready(Err(anyhow!("invalid target path")));
1879 };
1880 let worktree_path = self.abs_path().clone();
1881 let fs = self.fs.clone();
1882 let paths = paths
1883 .into_iter()
1884 .filter_map(|source| {
1885 let file_name = source.file_name()?;
1886 let mut target = target_directory.clone();
1887 target.push(file_name);
1888
1889 // Do not allow copying the same file to itself.
1890 if source.as_ref() != target.as_path() {
1891 Some((source, target))
1892 } else {
1893 None
1894 }
1895 })
1896 .collect::<Vec<_>>();
1897
1898 let paths_to_refresh = paths
1899 .iter()
1900 .filter_map(|(_, target)| Some(target.strip_prefix(&worktree_path).ok()?.into()))
1901 .collect::<Vec<_>>();
1902
1903 cx.spawn(async move |this, cx| {
1904 cx.background_spawn(async move {
1905 for (source, target) in paths {
1906 copy_recursive(
1907 fs.as_ref(),
1908 &source,
1909 &target,
1910 fs::CopyOptions {
1911 overwrite: true,
1912 ..Default::default()
1913 },
1914 )
1915 .await
1916 .with_context(|| {
1917 format!("Failed to copy file from {source:?} to {target:?}")
1918 })?;
1919 }
1920 anyhow::Ok(())
1921 })
1922 .await
1923 .log_err();
1924 let mut refresh = cx.read_entity(
1925 &this.upgrade().with_context(|| "Dropped worktree")?,
1926 |this, _| {
1927 anyhow::Ok::<postage::barrier::Receiver>(
1928 this.as_local()
1929 .with_context(|| "Worktree is not local")?
1930 .refresh_entries_for_paths(paths_to_refresh.clone()),
1931 )
1932 },
1933 )??;
1934
1935 cx.background_spawn(async move {
1936 refresh.next().await;
1937 anyhow::Ok(())
1938 })
1939 .await
1940 .log_err();
1941
1942 let this = this.upgrade().with_context(|| "Dropped worktree")?;
1943 cx.read_entity(&this, |this, _| {
1944 paths_to_refresh
1945 .iter()
1946 .filter_map(|path| Some(this.entry_for_path(path)?.id))
1947 .collect()
1948 })
1949 })
1950 }
1951
1952 fn expand_entry(
1953 &self,
1954 entry_id: ProjectEntryId,
1955 cx: &Context<Worktree>,
1956 ) -> Option<Task<Result<()>>> {
1957 let path = self.entry_for_id(entry_id)?.path.clone();
1958 let mut refresh = self.refresh_entries_for_paths(vec![path]);
1959 Some(cx.background_spawn(async move {
1960 refresh.next().await;
1961 Ok(())
1962 }))
1963 }
1964
1965 fn expand_all_for_entry(
1966 &self,
1967 entry_id: ProjectEntryId,
1968 cx: &Context<Worktree>,
1969 ) -> Option<Task<Result<()>>> {
1970 let path = self.entry_for_id(entry_id).unwrap().path.clone();
1971 let mut rx = self.add_path_prefix_to_scan(path.clone());
1972 Some(cx.background_spawn(async move {
1973 rx.next().await;
1974 Ok(())
1975 }))
1976 }
1977
1978 fn refresh_entries_for_paths(&self, paths: Vec<Arc<Path>>) -> barrier::Receiver {
1979 let (tx, rx) = barrier::channel();
1980 self.scan_requests_tx
1981 .try_send(ScanRequest {
1982 relative_paths: paths,
1983 done: smallvec![tx],
1984 })
1985 .ok();
1986 rx
1987 }
1988
1989 #[cfg(feature = "test-support")]
1990 pub fn manually_refresh_entries_for_paths(&self, paths: Vec<Arc<Path>>) -> barrier::Receiver {
1991 self.refresh_entries_for_paths(paths)
1992 }
1993
1994 pub fn add_path_prefix_to_scan(&self, path_prefix: Arc<Path>) -> barrier::Receiver {
1995 let (tx, rx) = barrier::channel();
1996 self.path_prefixes_to_scan_tx
1997 .try_send(PathPrefixScanRequest {
1998 path: path_prefix,
1999 done: smallvec![tx],
2000 })
2001 .ok();
2002 rx
2003 }
2004
2005 fn refresh_entry(
2006 &self,
2007 path: Arc<Path>,
2008 old_path: Option<Arc<Path>>,
2009 cx: &Context<Worktree>,
2010 ) -> Task<Result<Option<Entry>>> {
2011 if self.settings.is_path_excluded(&path) {
2012 return Task::ready(Ok(None));
2013 }
2014 let paths = if let Some(old_path) = old_path.as_ref() {
2015 vec![old_path.clone(), path.clone()]
2016 } else {
2017 vec![path.clone()]
2018 };
2019 let t0 = Instant::now();
2020 let mut refresh = self.refresh_entries_for_paths(paths);
2021 cx.spawn(async move |this, cx| {
2022 refresh.recv().await;
2023 log::trace!("refreshed entry {path:?} in {:?}", t0.elapsed());
2024 let new_entry = this.read_with(cx, |this, _| {
2025 this.entry_for_path(path)
2026 .cloned()
2027 .context("reading path after update")
2028 })??;
2029 Ok(Some(new_entry))
2030 })
2031 }
2032
2033 fn observe_updates<F, Fut>(&mut self, project_id: u64, cx: &Context<Worktree>, callback: F)
2034 where
2035 F: 'static + Send + Fn(proto::UpdateWorktree) -> Fut,
2036 Fut: 'static + Send + Future<Output = bool>,
2037 {
2038 if let Some(observer) = self.update_observer.as_mut() {
2039 *observer.resume_updates.borrow_mut() = ();
2040 return;
2041 }
2042
2043 let (resume_updates_tx, mut resume_updates_rx) = watch::channel::<()>();
2044 let (snapshots_tx, mut snapshots_rx) =
2045 mpsc::unbounded::<(LocalSnapshot, UpdatedEntriesSet)>();
2046 snapshots_tx
2047 .unbounded_send((self.snapshot(), Arc::default()))
2048 .ok();
2049
2050 let worktree_id = cx.entity_id().as_u64();
2051 let _maintain_remote_snapshot = cx.background_spawn(async move {
2052 let mut is_first = true;
2053 while let Some((snapshot, entry_changes)) = snapshots_rx.next().await {
2054 let update = if is_first {
2055 is_first = false;
2056 snapshot.build_initial_update(project_id, worktree_id)
2057 } else {
2058 snapshot.build_update(project_id, worktree_id, entry_changes)
2059 };
2060
2061 for update in proto::split_worktree_update(update) {
2062 let _ = resume_updates_rx.try_recv();
2063 loop {
2064 let result = callback(update.clone());
2065 if result.await {
2066 break;
2067 } else {
2068 log::info!("waiting to resume updates");
2069 if resume_updates_rx.next().await.is_none() {
2070 return Some(());
2071 }
2072 }
2073 }
2074 }
2075 }
2076 Some(())
2077 });
2078
2079 self.update_observer = Some(UpdateObservationState {
2080 snapshots_tx,
2081 resume_updates: resume_updates_tx,
2082 _maintain_remote_snapshot,
2083 });
2084 }
2085
2086 pub fn share_private_files(&mut self, cx: &Context<Worktree>) {
2087 self.share_private_files = true;
2088 self.restart_background_scanners(cx);
2089 }
2090
2091 fn update_abs_path_and_refresh(
2092 &mut self,
2093 new_path: Option<SanitizedPath>,
2094 cx: &Context<Worktree>,
2095 ) {
2096 if let Some(new_path) = new_path {
2097 self.snapshot.git_repositories = Default::default();
2098 self.snapshot.ignores_by_parent_abs_path = Default::default();
2099 let root_name = new_path
2100 .as_path()
2101 .file_name()
2102 .map_or(String::new(), |f| f.to_string_lossy().to_string());
2103 self.snapshot.update_abs_path(new_path, root_name);
2104 }
2105 self.restart_background_scanners(cx);
2106 }
2107}
2108
2109impl RemoteWorktree {
2110 pub fn project_id(&self) -> u64 {
2111 self.project_id
2112 }
2113
2114 pub fn client(&self) -> AnyProtoClient {
2115 self.client.clone()
2116 }
2117
2118 pub fn disconnected_from_host(&mut self) {
2119 self.updates_tx.take();
2120 self.snapshot_subscriptions.clear();
2121 self.disconnected = true;
2122 }
2123
2124 pub fn update_from_remote(&self, update: proto::UpdateWorktree) {
2125 if let Some(updates_tx) = &self.updates_tx {
2126 updates_tx
2127 .unbounded_send(update)
2128 .expect("consumer runs to completion");
2129 }
2130 }
2131
2132 fn observe_updates<F, Fut>(&mut self, project_id: u64, cx: &Context<Worktree>, callback: F)
2133 where
2134 F: 'static + Send + Fn(proto::UpdateWorktree) -> Fut,
2135 Fut: 'static + Send + Future<Output = bool>,
2136 {
2137 let (tx, mut rx) = mpsc::unbounded();
2138 let initial_update = self
2139 .snapshot
2140 .build_initial_update(project_id, self.id().to_proto());
2141 self.update_observer = Some(tx);
2142 cx.spawn(async move |this, cx| {
2143 let mut update = initial_update;
2144 'outer: loop {
2145 // SSH projects use a special project ID of 0, and we need to
2146 // remap it to the correct one here.
2147 update.project_id = project_id;
2148
2149 for chunk in split_worktree_update(update) {
2150 if !callback(chunk).await {
2151 break 'outer;
2152 }
2153 }
2154
2155 if let Some(next_update) = rx.next().await {
2156 update = next_update;
2157 } else {
2158 break;
2159 }
2160 }
2161 this.update(cx, |this, _| {
2162 let this = this.as_remote_mut().unwrap();
2163 this.update_observer.take();
2164 })
2165 })
2166 .detach();
2167 }
2168
2169 fn observed_snapshot(&self, scan_id: usize) -> bool {
2170 self.completed_scan_id >= scan_id
2171 }
2172
2173 pub fn wait_for_snapshot(
2174 &mut self,
2175 scan_id: usize,
2176 ) -> impl Future<Output = Result<()>> + use<> {
2177 let (tx, rx) = oneshot::channel();
2178 if self.observed_snapshot(scan_id) {
2179 let _ = tx.send(());
2180 } else if self.disconnected {
2181 drop(tx);
2182 } else {
2183 match self
2184 .snapshot_subscriptions
2185 .binary_search_by_key(&scan_id, |probe| probe.0)
2186 {
2187 Ok(ix) | Err(ix) => self.snapshot_subscriptions.insert(ix, (scan_id, tx)),
2188 }
2189 }
2190
2191 async move {
2192 rx.await?;
2193 Ok(())
2194 }
2195 }
2196
2197 fn insert_entry(
2198 &mut self,
2199 entry: proto::Entry,
2200 scan_id: usize,
2201 cx: &Context<Worktree>,
2202 ) -> Task<Result<Entry>> {
2203 let wait_for_snapshot = self.wait_for_snapshot(scan_id);
2204 cx.spawn(async move |this, cx| {
2205 wait_for_snapshot.await?;
2206 this.update(cx, |worktree, _| {
2207 let worktree = worktree.as_remote_mut().unwrap();
2208 let snapshot = &mut worktree.background_snapshot.lock().0;
2209 let entry = snapshot.insert_entry(entry, &worktree.file_scan_inclusions);
2210 worktree.snapshot = snapshot.clone();
2211 entry
2212 })?
2213 })
2214 }
2215
2216 fn delete_entry(
2217 &self,
2218 entry_id: ProjectEntryId,
2219 trash: bool,
2220 cx: &Context<Worktree>,
2221 ) -> Option<Task<Result<()>>> {
2222 let response = self.client.request(proto::DeleteProjectEntry {
2223 project_id: self.project_id,
2224 entry_id: entry_id.to_proto(),
2225 use_trash: trash,
2226 });
2227 Some(cx.spawn(async move |this, cx| {
2228 let response = response.await?;
2229 let scan_id = response.worktree_scan_id as usize;
2230
2231 this.update(cx, move |this, _| {
2232 this.as_remote_mut().unwrap().wait_for_snapshot(scan_id)
2233 })?
2234 .await?;
2235
2236 this.update(cx, |this, _| {
2237 let this = this.as_remote_mut().unwrap();
2238 let snapshot = &mut this.background_snapshot.lock().0;
2239 snapshot.delete_entry(entry_id);
2240 this.snapshot = snapshot.clone();
2241 })
2242 }))
2243 }
2244
2245 fn rename_entry(
2246 &self,
2247 entry_id: ProjectEntryId,
2248 new_path: impl Into<Arc<Path>>,
2249 cx: &Context<Worktree>,
2250 ) -> Task<Result<CreatedEntry>> {
2251 let new_path: Arc<Path> = new_path.into();
2252 let response = self.client.request(proto::RenameProjectEntry {
2253 project_id: self.project_id,
2254 entry_id: entry_id.to_proto(),
2255 new_path: new_path.as_ref().to_proto(),
2256 });
2257 cx.spawn(async move |this, cx| {
2258 let response = response.await?;
2259 match response.entry {
2260 Some(entry) => this
2261 .update(cx, |this, cx| {
2262 this.as_remote_mut().unwrap().insert_entry(
2263 entry,
2264 response.worktree_scan_id as usize,
2265 cx,
2266 )
2267 })?
2268 .await
2269 .map(CreatedEntry::Included),
2270 None => {
2271 let abs_path = this.read_with(cx, |worktree, _| {
2272 worktree
2273 .absolutize(&new_path)
2274 .with_context(|| format!("absolutizing {new_path:?}"))
2275 })??;
2276 Ok(CreatedEntry::Excluded { abs_path })
2277 }
2278 }
2279 })
2280 }
2281
2282 fn copy_external_entries(
2283 &self,
2284 target_directory: Arc<Path>,
2285 paths_to_copy: Vec<Arc<Path>>,
2286 local_fs: Arc<dyn Fs>,
2287 cx: &Context<Worktree>,
2288 ) -> Task<anyhow::Result<Vec<ProjectEntryId>>> {
2289 let client = self.client.clone();
2290 let worktree_id = self.id().to_proto();
2291 let project_id = self.project_id;
2292
2293 cx.background_spawn(async move {
2294 let mut requests = Vec::new();
2295 for root_path_to_copy in paths_to_copy {
2296 let Some(filename) = root_path_to_copy.file_name() else {
2297 continue;
2298 };
2299 for (abs_path, is_directory) in
2300 read_dir_items(local_fs.as_ref(), &root_path_to_copy).await?
2301 {
2302 let Ok(relative_path) = abs_path.strip_prefix(&root_path_to_copy) else {
2303 continue;
2304 };
2305 let content = if is_directory {
2306 None
2307 } else {
2308 Some(local_fs.load_bytes(&abs_path).await?)
2309 };
2310
2311 let mut target_path = target_directory.join(filename);
2312 if relative_path.file_name().is_some() {
2313 target_path.push(relative_path)
2314 }
2315
2316 requests.push(proto::CreateProjectEntry {
2317 project_id,
2318 worktree_id,
2319 path: target_path.to_string_lossy().to_string(),
2320 is_directory,
2321 content,
2322 });
2323 }
2324 }
2325 requests.sort_unstable_by(|a, b| a.path.cmp(&b.path));
2326 requests.dedup();
2327
2328 let mut copied_entry_ids = Vec::new();
2329 for request in requests {
2330 let response = client.request(request).await?;
2331 copied_entry_ids.extend(response.entry.map(|e| ProjectEntryId::from_proto(e.id)));
2332 }
2333
2334 Ok(copied_entry_ids)
2335 })
2336 }
2337}
2338
2339impl Snapshot {
2340 pub fn new(id: u64, root_name: String, abs_path: Arc<Path>) -> Self {
2341 Snapshot {
2342 id: WorktreeId::from_usize(id as usize),
2343 abs_path: abs_path.into(),
2344 root_char_bag: root_name.chars().map(|c| c.to_ascii_lowercase()).collect(),
2345 root_name,
2346 always_included_entries: Default::default(),
2347 entries_by_path: Default::default(),
2348 entries_by_id: Default::default(),
2349 scan_id: 1,
2350 completed_scan_id: 0,
2351 }
2352 }
2353
2354 pub fn id(&self) -> WorktreeId {
2355 self.id
2356 }
2357
2358 // TODO:
2359 // Consider the following:
2360 //
2361 // ```rust
2362 // let abs_path: Arc<Path> = snapshot.abs_path(); // e.g. "C:\Users\user\Desktop\project"
2363 // let some_non_trimmed_path = Path::new("\\\\?\\C:\\Users\\user\\Desktop\\project\\main.rs");
2364 // // The caller perform some actions here:
2365 // some_non_trimmed_path.strip_prefix(abs_path); // This fails
2366 // some_non_trimmed_path.starts_with(abs_path); // This fails too
2367 // ```
2368 //
2369 // This is definitely a bug, but it's not clear if we should handle it here or not.
2370 pub fn abs_path(&self) -> &Arc<Path> {
2371 self.abs_path.as_path()
2372 }
2373
2374 fn build_initial_update(&self, project_id: u64, worktree_id: u64) -> proto::UpdateWorktree {
2375 let mut updated_entries = self
2376 .entries_by_path
2377 .iter()
2378 .map(proto::Entry::from)
2379 .collect::<Vec<_>>();
2380 updated_entries.sort_unstable_by_key(|e| e.id);
2381
2382 proto::UpdateWorktree {
2383 project_id,
2384 worktree_id,
2385 abs_path: self.abs_path().to_proto(),
2386 root_name: self.root_name().to_string(),
2387 updated_entries,
2388 removed_entries: Vec::new(),
2389 scan_id: self.scan_id as u64,
2390 is_last_update: self.completed_scan_id == self.scan_id,
2391 // Sent in separate messages.
2392 updated_repositories: Vec::new(),
2393 removed_repositories: Vec::new(),
2394 }
2395 }
2396
2397 pub fn work_directory_abs_path(&self, work_directory: &WorkDirectory) -> Result<PathBuf> {
2398 match work_directory {
2399 WorkDirectory::InProject { relative_path } => self.absolutize(relative_path),
2400 WorkDirectory::AboveProject { absolute_path, .. } => {
2401 Ok(absolute_path.as_ref().to_owned())
2402 }
2403 }
2404 }
2405
2406 pub fn absolutize(&self, path: &Path) -> Result<PathBuf> {
2407 if path
2408 .components()
2409 .any(|component| !matches!(component, std::path::Component::Normal(_)))
2410 {
2411 anyhow::bail!("invalid path");
2412 }
2413 if path.file_name().is_some() {
2414 Ok(self.abs_path.as_path().join(path))
2415 } else {
2416 Ok(self.abs_path.as_path().to_path_buf())
2417 }
2418 }
2419
2420 pub fn contains_entry(&self, entry_id: ProjectEntryId) -> bool {
2421 self.entries_by_id.get(&entry_id, &()).is_some()
2422 }
2423
2424 fn insert_entry(
2425 &mut self,
2426 entry: proto::Entry,
2427 always_included_paths: &PathMatcher,
2428 ) -> Result<Entry> {
2429 let entry = Entry::try_from((&self.root_char_bag, always_included_paths, entry))?;
2430 let old_entry = self.entries_by_id.insert_or_replace(
2431 PathEntry {
2432 id: entry.id,
2433 path: entry.path.clone(),
2434 is_ignored: entry.is_ignored,
2435 scan_id: 0,
2436 },
2437 &(),
2438 );
2439 if let Some(old_entry) = old_entry {
2440 self.entries_by_path.remove(&PathKey(old_entry.path), &());
2441 }
2442 self.entries_by_path.insert_or_replace(entry.clone(), &());
2443 Ok(entry)
2444 }
2445
2446 fn delete_entry(&mut self, entry_id: ProjectEntryId) -> Option<Arc<Path>> {
2447 let removed_entry = self.entries_by_id.remove(&entry_id, &())?;
2448 self.entries_by_path = {
2449 let mut cursor = self.entries_by_path.cursor::<TraversalProgress>(&());
2450 let mut new_entries_by_path =
2451 cursor.slice(&TraversalTarget::path(&removed_entry.path), Bias::Left);
2452 while let Some(entry) = cursor.item() {
2453 if entry.path.starts_with(&removed_entry.path) {
2454 self.entries_by_id.remove(&entry.id, &());
2455 cursor.next();
2456 } else {
2457 break;
2458 }
2459 }
2460 new_entries_by_path.append(cursor.suffix(), &());
2461 new_entries_by_path
2462 };
2463
2464 Some(removed_entry.path)
2465 }
2466
2467 fn update_abs_path(&mut self, abs_path: SanitizedPath, root_name: String) {
2468 self.abs_path = abs_path;
2469 if root_name != self.root_name {
2470 self.root_char_bag = root_name.chars().map(|c| c.to_ascii_lowercase()).collect();
2471 self.root_name = root_name;
2472 }
2473 }
2474
2475 fn apply_remote_update(
2476 &mut self,
2477 update: proto::UpdateWorktree,
2478 always_included_paths: &PathMatcher,
2479 ) -> Result<()> {
2480 log::debug!(
2481 "applying remote worktree update. {} entries updated, {} removed",
2482 update.updated_entries.len(),
2483 update.removed_entries.len()
2484 );
2485 self.update_abs_path(
2486 SanitizedPath::from(PathBuf::from_proto(update.abs_path)),
2487 update.root_name,
2488 );
2489
2490 let mut entries_by_path_edits = Vec::new();
2491 let mut entries_by_id_edits = Vec::new();
2492
2493 for entry_id in update.removed_entries {
2494 let entry_id = ProjectEntryId::from_proto(entry_id);
2495 entries_by_id_edits.push(Edit::Remove(entry_id));
2496 if let Some(entry) = self.entry_for_id(entry_id) {
2497 entries_by_path_edits.push(Edit::Remove(PathKey(entry.path.clone())));
2498 }
2499 }
2500
2501 for entry in update.updated_entries {
2502 let entry = Entry::try_from((&self.root_char_bag, always_included_paths, entry))?;
2503 if let Some(PathEntry { path, .. }) = self.entries_by_id.get(&entry.id, &()) {
2504 entries_by_path_edits.push(Edit::Remove(PathKey(path.clone())));
2505 }
2506 if let Some(old_entry) = self.entries_by_path.get(&PathKey(entry.path.clone()), &()) {
2507 if old_entry.id != entry.id {
2508 entries_by_id_edits.push(Edit::Remove(old_entry.id));
2509 }
2510 }
2511 entries_by_id_edits.push(Edit::Insert(PathEntry {
2512 id: entry.id,
2513 path: entry.path.clone(),
2514 is_ignored: entry.is_ignored,
2515 scan_id: 0,
2516 }));
2517 entries_by_path_edits.push(Edit::Insert(entry));
2518 }
2519
2520 self.entries_by_path.edit(entries_by_path_edits, &());
2521 self.entries_by_id.edit(entries_by_id_edits, &());
2522
2523 self.scan_id = update.scan_id as usize;
2524 if update.is_last_update {
2525 self.completed_scan_id = update.scan_id as usize;
2526 }
2527
2528 Ok(())
2529 }
2530
2531 pub fn entry_count(&self) -> usize {
2532 self.entries_by_path.summary().count
2533 }
2534
2535 pub fn visible_entry_count(&self) -> usize {
2536 self.entries_by_path.summary().non_ignored_count
2537 }
2538
2539 pub fn dir_count(&self) -> usize {
2540 let summary = self.entries_by_path.summary();
2541 summary.count - summary.file_count
2542 }
2543
2544 pub fn visible_dir_count(&self) -> usize {
2545 let summary = self.entries_by_path.summary();
2546 summary.non_ignored_count - summary.non_ignored_file_count
2547 }
2548
2549 pub fn file_count(&self) -> usize {
2550 self.entries_by_path.summary().file_count
2551 }
2552
2553 pub fn visible_file_count(&self) -> usize {
2554 self.entries_by_path.summary().non_ignored_file_count
2555 }
2556
2557 fn traverse_from_offset(
2558 &self,
2559 include_files: bool,
2560 include_dirs: bool,
2561 include_ignored: bool,
2562 start_offset: usize,
2563 ) -> Traversal<'_> {
2564 let mut cursor = self.entries_by_path.cursor(&());
2565 cursor.seek(
2566 &TraversalTarget::Count {
2567 count: start_offset,
2568 include_files,
2569 include_dirs,
2570 include_ignored,
2571 },
2572 Bias::Right,
2573 );
2574 Traversal {
2575 snapshot: self,
2576 cursor,
2577 include_files,
2578 include_dirs,
2579 include_ignored,
2580 }
2581 }
2582
2583 pub fn traverse_from_path(
2584 &self,
2585 include_files: bool,
2586 include_dirs: bool,
2587 include_ignored: bool,
2588 path: &Path,
2589 ) -> Traversal<'_> {
2590 Traversal::new(self, include_files, include_dirs, include_ignored, path)
2591 }
2592
2593 pub fn files(&self, include_ignored: bool, start: usize) -> Traversal<'_> {
2594 self.traverse_from_offset(true, false, include_ignored, start)
2595 }
2596
2597 pub fn directories(&self, include_ignored: bool, start: usize) -> Traversal<'_> {
2598 self.traverse_from_offset(false, true, include_ignored, start)
2599 }
2600
2601 pub fn entries(&self, include_ignored: bool, start: usize) -> Traversal<'_> {
2602 self.traverse_from_offset(true, true, include_ignored, start)
2603 }
2604
2605 pub fn paths(&self) -> impl Iterator<Item = &Arc<Path>> {
2606 let empty_path = Path::new("");
2607 self.entries_by_path
2608 .cursor::<()>(&())
2609 .filter(move |entry| entry.path.as_ref() != empty_path)
2610 .map(|entry| &entry.path)
2611 }
2612
2613 pub fn child_entries<'a>(&'a self, parent_path: &'a Path) -> ChildEntriesIter<'a> {
2614 let options = ChildEntriesOptions {
2615 include_files: true,
2616 include_dirs: true,
2617 include_ignored: true,
2618 };
2619 self.child_entries_with_options(parent_path, options)
2620 }
2621
2622 pub fn child_entries_with_options<'a>(
2623 &'a self,
2624 parent_path: &'a Path,
2625 options: ChildEntriesOptions,
2626 ) -> ChildEntriesIter<'a> {
2627 let mut cursor = self.entries_by_path.cursor(&());
2628 cursor.seek(&TraversalTarget::path(parent_path), Bias::Right);
2629 let traversal = Traversal {
2630 snapshot: self,
2631 cursor,
2632 include_files: options.include_files,
2633 include_dirs: options.include_dirs,
2634 include_ignored: options.include_ignored,
2635 };
2636 ChildEntriesIter {
2637 traversal,
2638 parent_path,
2639 }
2640 }
2641
2642 pub fn root_entry(&self) -> Option<&Entry> {
2643 self.entries_by_path.first()
2644 }
2645
2646 /// TODO: what's the difference between `root_dir` and `abs_path`?
2647 /// is there any? if so, document it.
2648 pub fn root_dir(&self) -> Option<Arc<Path>> {
2649 self.root_entry()
2650 .filter(|entry| entry.is_dir())
2651 .map(|_| self.abs_path().clone())
2652 }
2653
2654 pub fn root_name(&self) -> &str {
2655 &self.root_name
2656 }
2657
2658 pub fn scan_id(&self) -> usize {
2659 self.scan_id
2660 }
2661
2662 pub fn entry_for_path(&self, path: impl AsRef<Path>) -> Option<&Entry> {
2663 let path = path.as_ref();
2664 debug_assert!(path.is_relative());
2665 self.traverse_from_path(true, true, true, path)
2666 .entry()
2667 .and_then(|entry| {
2668 if entry.path.as_ref() == path {
2669 Some(entry)
2670 } else {
2671 None
2672 }
2673 })
2674 }
2675
2676 pub fn entry_for_id(&self, id: ProjectEntryId) -> Option<&Entry> {
2677 let entry = self.entries_by_id.get(&id, &())?;
2678 self.entry_for_path(&entry.path)
2679 }
2680
2681 pub fn inode_for_path(&self, path: impl AsRef<Path>) -> Option<u64> {
2682 self.entry_for_path(path.as_ref()).map(|e| e.inode)
2683 }
2684}
2685
2686impl LocalSnapshot {
2687 fn local_repo_for_work_directory_path(&self, path: &Path) -> Option<&LocalRepositoryEntry> {
2688 self.git_repositories
2689 .iter()
2690 .map(|(_, entry)| entry)
2691 .find(|entry| entry.work_directory.path_key() == PathKey(path.into()))
2692 }
2693
2694 fn build_update(
2695 &self,
2696 project_id: u64,
2697 worktree_id: u64,
2698 entry_changes: UpdatedEntriesSet,
2699 ) -> proto::UpdateWorktree {
2700 let mut updated_entries = Vec::new();
2701 let mut removed_entries = Vec::new();
2702
2703 for (_, entry_id, path_change) in entry_changes.iter() {
2704 if let PathChange::Removed = path_change {
2705 removed_entries.push(entry_id.0 as u64);
2706 } else if let Some(entry) = self.entry_for_id(*entry_id) {
2707 updated_entries.push(proto::Entry::from(entry));
2708 }
2709 }
2710
2711 removed_entries.sort_unstable();
2712 updated_entries.sort_unstable_by_key(|e| e.id);
2713
2714 // TODO - optimize, knowing that removed_entries are sorted.
2715 removed_entries.retain(|id| updated_entries.binary_search_by_key(id, |e| e.id).is_err());
2716
2717 proto::UpdateWorktree {
2718 project_id,
2719 worktree_id,
2720 abs_path: self.abs_path().to_proto(),
2721 root_name: self.root_name().to_string(),
2722 updated_entries,
2723 removed_entries,
2724 scan_id: self.scan_id as u64,
2725 is_last_update: self.completed_scan_id == self.scan_id,
2726 // Sent in separate messages.
2727 updated_repositories: Vec::new(),
2728 removed_repositories: Vec::new(),
2729 }
2730 }
2731
2732 fn insert_entry(&mut self, mut entry: Entry, fs: &dyn Fs) -> Entry {
2733 if entry.is_file() && entry.path.file_name() == Some(&GITIGNORE) {
2734 let abs_path = self.abs_path.as_path().join(&entry.path);
2735 match smol::block_on(build_gitignore(&abs_path, fs)) {
2736 Ok(ignore) => {
2737 self.ignores_by_parent_abs_path
2738 .insert(abs_path.parent().unwrap().into(), (Arc::new(ignore), true));
2739 }
2740 Err(error) => {
2741 log::error!(
2742 "error loading .gitignore file {:?} - {:?}",
2743 &entry.path,
2744 error
2745 );
2746 }
2747 }
2748 }
2749
2750 if entry.kind == EntryKind::PendingDir {
2751 if let Some(existing_entry) =
2752 self.entries_by_path.get(&PathKey(entry.path.clone()), &())
2753 {
2754 entry.kind = existing_entry.kind;
2755 }
2756 }
2757
2758 let scan_id = self.scan_id;
2759 let removed = self.entries_by_path.insert_or_replace(entry.clone(), &());
2760 if let Some(removed) = removed {
2761 if removed.id != entry.id {
2762 self.entries_by_id.remove(&removed.id, &());
2763 }
2764 }
2765 self.entries_by_id.insert_or_replace(
2766 PathEntry {
2767 id: entry.id,
2768 path: entry.path.clone(),
2769 is_ignored: entry.is_ignored,
2770 scan_id,
2771 },
2772 &(),
2773 );
2774
2775 entry
2776 }
2777
2778 fn ancestor_inodes_for_path(&self, path: &Path) -> TreeSet<u64> {
2779 let mut inodes = TreeSet::default();
2780 for ancestor in path.ancestors().skip(1) {
2781 if let Some(entry) = self.entry_for_path(ancestor) {
2782 inodes.insert(entry.inode);
2783 }
2784 }
2785 inodes
2786 }
2787
2788 fn ignore_stack_for_abs_path(&self, abs_path: &Path, is_dir: bool) -> Arc<IgnoreStack> {
2789 let mut new_ignores = Vec::new();
2790 for (index, ancestor) in abs_path.ancestors().enumerate() {
2791 if index > 0 {
2792 if let Some((ignore, _)) = self.ignores_by_parent_abs_path.get(ancestor) {
2793 new_ignores.push((ancestor, Some(ignore.clone())));
2794 } else {
2795 new_ignores.push((ancestor, None));
2796 }
2797 }
2798 if ancestor.join(*DOT_GIT).exists() {
2799 break;
2800 }
2801 }
2802
2803 let mut ignore_stack = IgnoreStack::none();
2804 for (parent_abs_path, ignore) in new_ignores.into_iter().rev() {
2805 if ignore_stack.is_abs_path_ignored(parent_abs_path, true) {
2806 ignore_stack = IgnoreStack::all();
2807 break;
2808 } else if let Some(ignore) = ignore {
2809 ignore_stack = ignore_stack.append(parent_abs_path.into(), ignore);
2810 }
2811 }
2812
2813 if ignore_stack.is_abs_path_ignored(abs_path, is_dir) {
2814 ignore_stack = IgnoreStack::all();
2815 }
2816
2817 ignore_stack
2818 }
2819
2820 #[cfg(test)]
2821 fn expanded_entries(&self) -> impl Iterator<Item = &Entry> {
2822 self.entries_by_path
2823 .cursor::<()>(&())
2824 .filter(|entry| entry.kind == EntryKind::Dir && (entry.is_external || entry.is_ignored))
2825 }
2826
2827 #[cfg(test)]
2828 pub fn check_invariants(&self, git_state: bool) {
2829 use pretty_assertions::assert_eq;
2830
2831 assert_eq!(
2832 self.entries_by_path
2833 .cursor::<()>(&())
2834 .map(|e| (&e.path, e.id))
2835 .collect::<Vec<_>>(),
2836 self.entries_by_id
2837 .cursor::<()>(&())
2838 .map(|e| (&e.path, e.id))
2839 .collect::<collections::BTreeSet<_>>()
2840 .into_iter()
2841 .collect::<Vec<_>>(),
2842 "entries_by_path and entries_by_id are inconsistent"
2843 );
2844
2845 let mut files = self.files(true, 0);
2846 let mut visible_files = self.files(false, 0);
2847 for entry in self.entries_by_path.cursor::<()>(&()) {
2848 if entry.is_file() {
2849 assert_eq!(files.next().unwrap().inode, entry.inode);
2850 if (!entry.is_ignored && !entry.is_external) || entry.is_always_included {
2851 assert_eq!(visible_files.next().unwrap().inode, entry.inode);
2852 }
2853 }
2854 }
2855
2856 assert!(files.next().is_none());
2857 assert!(visible_files.next().is_none());
2858
2859 let mut bfs_paths = Vec::new();
2860 let mut stack = self
2861 .root_entry()
2862 .map(|e| e.path.as_ref())
2863 .into_iter()
2864 .collect::<Vec<_>>();
2865 while let Some(path) = stack.pop() {
2866 bfs_paths.push(path);
2867 let ix = stack.len();
2868 for child_entry in self.child_entries(path) {
2869 stack.insert(ix, &child_entry.path);
2870 }
2871 }
2872
2873 let dfs_paths_via_iter = self
2874 .entries_by_path
2875 .cursor::<()>(&())
2876 .map(|e| e.path.as_ref())
2877 .collect::<Vec<_>>();
2878 assert_eq!(bfs_paths, dfs_paths_via_iter);
2879
2880 let dfs_paths_via_traversal = self
2881 .entries(true, 0)
2882 .map(|e| e.path.as_ref())
2883 .collect::<Vec<_>>();
2884 assert_eq!(dfs_paths_via_traversal, dfs_paths_via_iter);
2885
2886 if git_state {
2887 for ignore_parent_abs_path in self.ignores_by_parent_abs_path.keys() {
2888 let ignore_parent_path = ignore_parent_abs_path
2889 .strip_prefix(self.abs_path.as_path())
2890 .unwrap();
2891 assert!(self.entry_for_path(ignore_parent_path).is_some());
2892 assert!(
2893 self.entry_for_path(ignore_parent_path.join(*GITIGNORE))
2894 .is_some()
2895 );
2896 }
2897 }
2898 }
2899
2900 #[cfg(test)]
2901 pub fn entries_without_ids(&self, include_ignored: bool) -> Vec<(&Path, u64, bool)> {
2902 let mut paths = Vec::new();
2903 for entry in self.entries_by_path.cursor::<()>(&()) {
2904 if include_ignored || !entry.is_ignored {
2905 paths.push((entry.path.as_ref(), entry.inode, entry.is_ignored));
2906 }
2907 }
2908 paths.sort_by(|a, b| a.0.cmp(b.0));
2909 paths
2910 }
2911}
2912
2913impl BackgroundScannerState {
2914 fn should_scan_directory(&self, entry: &Entry) -> bool {
2915 (!entry.is_external && (!entry.is_ignored || entry.is_always_included))
2916 || entry.path.file_name() == Some(*DOT_GIT)
2917 || entry.path.file_name() == Some(local_settings_folder_relative_path().as_os_str())
2918 || entry.path.file_name() == Some(local_vscode_folder_relative_path().as_os_str())
2919 || self.scanned_dirs.contains(&entry.id) // If we've ever scanned it, keep scanning
2920 || self
2921 .paths_to_scan
2922 .iter()
2923 .any(|p| p.starts_with(&entry.path))
2924 || self
2925 .path_prefixes_to_scan
2926 .iter()
2927 .any(|p| entry.path.starts_with(p))
2928 }
2929
2930 fn enqueue_scan_dir(&self, abs_path: Arc<Path>, entry: &Entry, scan_job_tx: &Sender<ScanJob>) {
2931 let path = entry.path.clone();
2932 let ignore_stack = self.snapshot.ignore_stack_for_abs_path(&abs_path, true);
2933 let mut ancestor_inodes = self.snapshot.ancestor_inodes_for_path(&path);
2934
2935 if !ancestor_inodes.contains(&entry.inode) {
2936 ancestor_inodes.insert(entry.inode);
2937 scan_job_tx
2938 .try_send(ScanJob {
2939 abs_path,
2940 path,
2941 ignore_stack,
2942 scan_queue: scan_job_tx.clone(),
2943 ancestor_inodes,
2944 is_external: entry.is_external,
2945 })
2946 .unwrap();
2947 }
2948 }
2949
2950 fn reuse_entry_id(&mut self, entry: &mut Entry) {
2951 if let Some(mtime) = entry.mtime {
2952 // If an entry with the same inode was removed from the worktree during this scan,
2953 // then it *might* represent the same file or directory. But the OS might also have
2954 // re-used the inode for a completely different file or directory.
2955 //
2956 // Conditionally reuse the old entry's id:
2957 // * if the mtime is the same, the file was probably been renamed.
2958 // * if the path is the same, the file may just have been updated
2959 if let Some(removed_entry) = self.removed_entries.remove(&entry.inode) {
2960 if removed_entry.mtime == Some(mtime) || removed_entry.path == entry.path {
2961 entry.id = removed_entry.id;
2962 }
2963 } else if let Some(existing_entry) = self.snapshot.entry_for_path(&entry.path) {
2964 entry.id = existing_entry.id;
2965 }
2966 }
2967 }
2968
2969 fn insert_entry(&mut self, mut entry: Entry, fs: &dyn Fs, watcher: &dyn Watcher) -> Entry {
2970 self.reuse_entry_id(&mut entry);
2971 let entry = self.snapshot.insert_entry(entry, fs);
2972 if entry.path.file_name() == Some(&DOT_GIT) {
2973 self.insert_git_repository(entry.path.clone(), fs, watcher);
2974 }
2975
2976 #[cfg(test)]
2977 self.snapshot.check_invariants(false);
2978
2979 entry
2980 }
2981
2982 fn populate_dir(
2983 &mut self,
2984 parent_path: &Arc<Path>,
2985 entries: impl IntoIterator<Item = Entry>,
2986 ignore: Option<Arc<Gitignore>>,
2987 ) {
2988 let mut parent_entry = if let Some(parent_entry) = self
2989 .snapshot
2990 .entries_by_path
2991 .get(&PathKey(parent_path.clone()), &())
2992 {
2993 parent_entry.clone()
2994 } else {
2995 log::warn!(
2996 "populating a directory {:?} that has been removed",
2997 parent_path
2998 );
2999 return;
3000 };
3001
3002 match parent_entry.kind {
3003 EntryKind::PendingDir | EntryKind::UnloadedDir => parent_entry.kind = EntryKind::Dir,
3004 EntryKind::Dir => {}
3005 _ => return,
3006 }
3007
3008 if let Some(ignore) = ignore {
3009 let abs_parent_path = self.snapshot.abs_path.as_path().join(parent_path).into();
3010 self.snapshot
3011 .ignores_by_parent_abs_path
3012 .insert(abs_parent_path, (ignore, false));
3013 }
3014
3015 let parent_entry_id = parent_entry.id;
3016 self.scanned_dirs.insert(parent_entry_id);
3017 let mut entries_by_path_edits = vec![Edit::Insert(parent_entry)];
3018 let mut entries_by_id_edits = Vec::new();
3019
3020 for entry in entries {
3021 entries_by_id_edits.push(Edit::Insert(PathEntry {
3022 id: entry.id,
3023 path: entry.path.clone(),
3024 is_ignored: entry.is_ignored,
3025 scan_id: self.snapshot.scan_id,
3026 }));
3027 entries_by_path_edits.push(Edit::Insert(entry));
3028 }
3029
3030 self.snapshot
3031 .entries_by_path
3032 .edit(entries_by_path_edits, &());
3033 self.snapshot.entries_by_id.edit(entries_by_id_edits, &());
3034
3035 if let Err(ix) = self.changed_paths.binary_search(parent_path) {
3036 self.changed_paths.insert(ix, parent_path.clone());
3037 }
3038
3039 #[cfg(test)]
3040 self.snapshot.check_invariants(false);
3041 }
3042
3043 fn remove_path(&mut self, path: &Path) {
3044 log::trace!("background scanner removing path {path:?}");
3045 let mut new_entries;
3046 let removed_entries;
3047 {
3048 let mut cursor = self
3049 .snapshot
3050 .entries_by_path
3051 .cursor::<TraversalProgress>(&());
3052 new_entries = cursor.slice(&TraversalTarget::path(path), Bias::Left);
3053 removed_entries = cursor.slice(&TraversalTarget::successor(path), Bias::Left);
3054 new_entries.append(cursor.suffix(), &());
3055 }
3056 self.snapshot.entries_by_path = new_entries;
3057
3058 let mut removed_ids = Vec::with_capacity(removed_entries.summary().count);
3059 for entry in removed_entries.cursor::<()>(&()) {
3060 match self.removed_entries.entry(entry.inode) {
3061 hash_map::Entry::Occupied(mut e) => {
3062 let prev_removed_entry = e.get_mut();
3063 if entry.id > prev_removed_entry.id {
3064 *prev_removed_entry = entry.clone();
3065 }
3066 }
3067 hash_map::Entry::Vacant(e) => {
3068 e.insert(entry.clone());
3069 }
3070 }
3071
3072 if entry.path.file_name() == Some(&GITIGNORE) {
3073 let abs_parent_path = self
3074 .snapshot
3075 .abs_path
3076 .as_path()
3077 .join(entry.path.parent().unwrap());
3078 if let Some((_, needs_update)) = self
3079 .snapshot
3080 .ignores_by_parent_abs_path
3081 .get_mut(abs_parent_path.as_path())
3082 {
3083 *needs_update = true;
3084 }
3085 }
3086
3087 if let Err(ix) = removed_ids.binary_search(&entry.id) {
3088 removed_ids.insert(ix, entry.id);
3089 }
3090 }
3091
3092 self.snapshot.entries_by_id.edit(
3093 removed_ids.iter().map(|&id| Edit::Remove(id)).collect(),
3094 &(),
3095 );
3096 self.snapshot
3097 .git_repositories
3098 .retain(|id, _| removed_ids.binary_search(id).is_err());
3099
3100 #[cfg(test)]
3101 self.snapshot.check_invariants(false);
3102 }
3103
3104 fn insert_git_repository(
3105 &mut self,
3106 dot_git_path: Arc<Path>,
3107 fs: &dyn Fs,
3108 watcher: &dyn Watcher,
3109 ) {
3110 let work_dir_path: Arc<Path> = match dot_git_path.parent() {
3111 Some(parent_dir) => {
3112 // Guard against repositories inside the repository metadata
3113 if parent_dir.iter().any(|component| component == *DOT_GIT) {
3114 log::debug!(
3115 "not building git repository for nested `.git` directory, `.git` path in the worktree: {dot_git_path:?}"
3116 );
3117 return;
3118 };
3119
3120 parent_dir.into()
3121 }
3122 None => {
3123 // `dot_git_path.parent().is_none()` means `.git` directory is the opened worktree itself,
3124 // no files inside that directory are tracked by git, so no need to build the repo around it
3125 log::debug!(
3126 "not building git repository for the worktree itself, `.git` path in the worktree: {dot_git_path:?}"
3127 );
3128 return;
3129 }
3130 };
3131
3132 self.insert_git_repository_for_path(
3133 WorkDirectory::InProject {
3134 relative_path: work_dir_path,
3135 },
3136 dot_git_path,
3137 fs,
3138 watcher,
3139 );
3140 }
3141
3142 fn insert_git_repository_for_path(
3143 &mut self,
3144 work_directory: WorkDirectory,
3145 dot_git_path: Arc<Path>,
3146 fs: &dyn Fs,
3147 watcher: &dyn Watcher,
3148 ) -> Option<LocalRepositoryEntry> {
3149 let work_dir_entry = self.snapshot.entry_for_path(work_directory.path_key().0)?;
3150 let work_directory_abs_path = self
3151 .snapshot
3152 .work_directory_abs_path(&work_directory)
3153 .log_err()?;
3154
3155 if self
3156 .snapshot
3157 .git_repositories
3158 .get(&work_dir_entry.id)
3159 .is_some()
3160 {
3161 log::trace!("existing git repository for {work_directory:?}");
3162 return None;
3163 }
3164
3165 let dot_git_abs_path: Arc<Path> = self
3166 .snapshot
3167 .abs_path
3168 .as_path()
3169 .join(&dot_git_path)
3170 .as_path()
3171 .into();
3172
3173 let (repository_dir_abs_path, common_dir_abs_path) =
3174 discover_git_paths(&dot_git_abs_path, fs);
3175 watcher.add(&common_dir_abs_path).log_err();
3176 if !repository_dir_abs_path.starts_with(&common_dir_abs_path) {
3177 watcher.add(&repository_dir_abs_path).log_err();
3178 }
3179
3180 let work_directory_id = work_dir_entry.id;
3181
3182 let local_repository = LocalRepositoryEntry {
3183 work_directory_id,
3184 work_directory,
3185 work_directory_abs_path: work_directory_abs_path.as_path().into(),
3186 git_dir_scan_id: 0,
3187 dot_git_abs_path,
3188 common_dir_abs_path,
3189 repository_dir_abs_path,
3190 };
3191
3192 self.snapshot
3193 .git_repositories
3194 .insert(work_directory_id, local_repository.clone());
3195
3196 log::trace!("inserting new local git repository");
3197 Some(local_repository)
3198 }
3199}
3200
3201async fn is_git_dir(path: &Path, fs: &dyn Fs) -> bool {
3202 if path.file_name() == Some(&*DOT_GIT) {
3203 return true;
3204 }
3205
3206 // If we're in a bare repository, we are not inside a `.git` folder. In a
3207 // bare repository, the root folder contains what would normally be in the
3208 // `.git` folder.
3209 let head_metadata = fs.metadata(&path.join("HEAD")).await;
3210 if !matches!(head_metadata, Ok(Some(_))) {
3211 return false;
3212 }
3213 let config_metadata = fs.metadata(&path.join("config")).await;
3214 matches!(config_metadata, Ok(Some(_)))
3215}
3216
3217async fn build_gitignore(abs_path: &Path, fs: &dyn Fs) -> Result<Gitignore> {
3218 let contents = fs.load(abs_path).await?;
3219 let parent = abs_path.parent().unwrap_or_else(|| Path::new("/"));
3220 let mut builder = GitignoreBuilder::new(parent);
3221 for line in contents.lines() {
3222 builder.add_line(Some(abs_path.into()), line)?;
3223 }
3224 Ok(builder.build()?)
3225}
3226
3227impl Deref for Worktree {
3228 type Target = Snapshot;
3229
3230 fn deref(&self) -> &Self::Target {
3231 match self {
3232 Worktree::Local(worktree) => &worktree.snapshot,
3233 Worktree::Remote(worktree) => &worktree.snapshot,
3234 }
3235 }
3236}
3237
3238impl Deref for LocalWorktree {
3239 type Target = LocalSnapshot;
3240
3241 fn deref(&self) -> &Self::Target {
3242 &self.snapshot
3243 }
3244}
3245
3246impl Deref for RemoteWorktree {
3247 type Target = Snapshot;
3248
3249 fn deref(&self) -> &Self::Target {
3250 &self.snapshot
3251 }
3252}
3253
3254impl fmt::Debug for LocalWorktree {
3255 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
3256 self.snapshot.fmt(f)
3257 }
3258}
3259
3260impl fmt::Debug for Snapshot {
3261 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
3262 struct EntriesById<'a>(&'a SumTree<PathEntry>);
3263 struct EntriesByPath<'a>(&'a SumTree<Entry>);
3264
3265 impl fmt::Debug for EntriesByPath<'_> {
3266 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
3267 f.debug_map()
3268 .entries(self.0.iter().map(|entry| (&entry.path, entry.id)))
3269 .finish()
3270 }
3271 }
3272
3273 impl fmt::Debug for EntriesById<'_> {
3274 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
3275 f.debug_list().entries(self.0.iter()).finish()
3276 }
3277 }
3278
3279 f.debug_struct("Snapshot")
3280 .field("id", &self.id)
3281 .field("root_name", &self.root_name)
3282 .field("entries_by_path", &EntriesByPath(&self.entries_by_path))
3283 .field("entries_by_id", &EntriesById(&self.entries_by_id))
3284 .finish()
3285 }
3286}
3287
3288#[derive(Debug, Clone, PartialEq)]
3289pub struct File {
3290 pub worktree: Entity<Worktree>,
3291 pub path: Arc<Path>,
3292 pub disk_state: DiskState,
3293 pub entry_id: Option<ProjectEntryId>,
3294 pub is_local: bool,
3295 pub is_private: bool,
3296}
3297
3298impl language::File for File {
3299 fn as_local(&self) -> Option<&dyn language::LocalFile> {
3300 if self.is_local { Some(self) } else { None }
3301 }
3302
3303 fn disk_state(&self) -> DiskState {
3304 self.disk_state
3305 }
3306
3307 fn path(&self) -> &Arc<Path> {
3308 &self.path
3309 }
3310
3311 fn full_path(&self, cx: &App) -> PathBuf {
3312 self.worktree.read(cx).full_path(&self.path)
3313 }
3314
3315 /// Returns the last component of this handle's absolute path. If this handle refers to the root
3316 /// of its worktree, then this method will return the name of the worktree itself.
3317 fn file_name<'a>(&'a self, cx: &'a App) -> &'a OsStr {
3318 self.path
3319 .file_name()
3320 .unwrap_or_else(|| OsStr::new(&self.worktree.read(cx).root_name))
3321 }
3322
3323 fn worktree_id(&self, cx: &App) -> WorktreeId {
3324 self.worktree.read(cx).id()
3325 }
3326
3327 fn to_proto(&self, cx: &App) -> rpc::proto::File {
3328 rpc::proto::File {
3329 worktree_id: self.worktree.read(cx).id().to_proto(),
3330 entry_id: self.entry_id.map(|id| id.to_proto()),
3331 path: self.path.as_ref().to_proto(),
3332 mtime: self.disk_state.mtime().map(|time| time.into()),
3333 is_deleted: self.disk_state == DiskState::Deleted,
3334 }
3335 }
3336
3337 fn is_private(&self) -> bool {
3338 self.is_private
3339 }
3340}
3341
3342impl language::LocalFile for File {
3343 fn abs_path(&self, cx: &App) -> PathBuf {
3344 let worktree_path = &self.worktree.read(cx).abs_path();
3345 if self.path.as_ref() == Path::new("") {
3346 worktree_path.to_path_buf()
3347 } else {
3348 worktree_path.join(&self.path)
3349 }
3350 }
3351
3352 fn load(&self, cx: &App) -> Task<Result<String>> {
3353 let worktree = self.worktree.read(cx).as_local().unwrap();
3354 let abs_path = worktree.absolutize(&self.path);
3355 let fs = worktree.fs.clone();
3356 cx.background_spawn(async move { fs.load(&abs_path?).await })
3357 }
3358
3359 fn load_bytes(&self, cx: &App) -> Task<Result<Vec<u8>>> {
3360 let worktree = self.worktree.read(cx).as_local().unwrap();
3361 let abs_path = worktree.absolutize(&self.path);
3362 let fs = worktree.fs.clone();
3363 cx.background_spawn(async move { fs.load_bytes(&abs_path?).await })
3364 }
3365}
3366
3367impl File {
3368 pub fn for_entry(entry: Entry, worktree: Entity<Worktree>) -> Arc<Self> {
3369 Arc::new(Self {
3370 worktree,
3371 path: entry.path.clone(),
3372 disk_state: if let Some(mtime) = entry.mtime {
3373 DiskState::Present { mtime }
3374 } else {
3375 DiskState::New
3376 },
3377 entry_id: Some(entry.id),
3378 is_local: true,
3379 is_private: entry.is_private,
3380 })
3381 }
3382
3383 pub fn from_proto(
3384 proto: rpc::proto::File,
3385 worktree: Entity<Worktree>,
3386 cx: &App,
3387 ) -> Result<Self> {
3388 let worktree_id = worktree.read(cx).as_remote().context("not remote")?.id();
3389
3390 anyhow::ensure!(
3391 worktree_id.to_proto() == proto.worktree_id,
3392 "worktree id does not match file"
3393 );
3394
3395 let disk_state = if proto.is_deleted {
3396 DiskState::Deleted
3397 } else {
3398 if let Some(mtime) = proto.mtime.map(&Into::into) {
3399 DiskState::Present { mtime }
3400 } else {
3401 DiskState::New
3402 }
3403 };
3404
3405 Ok(Self {
3406 worktree,
3407 path: Arc::<Path>::from_proto(proto.path),
3408 disk_state,
3409 entry_id: proto.entry_id.map(ProjectEntryId::from_proto),
3410 is_local: false,
3411 is_private: false,
3412 })
3413 }
3414
3415 pub fn from_dyn(file: Option<&Arc<dyn language::File>>) -> Option<&Self> {
3416 file.and_then(|f| {
3417 let f: &dyn language::File = f.borrow();
3418 let f: &dyn Any = f;
3419 f.downcast_ref()
3420 })
3421 }
3422
3423 pub fn worktree_id(&self, cx: &App) -> WorktreeId {
3424 self.worktree.read(cx).id()
3425 }
3426
3427 pub fn project_entry_id(&self, _: &App) -> Option<ProjectEntryId> {
3428 match self.disk_state {
3429 DiskState::Deleted => None,
3430 _ => self.entry_id,
3431 }
3432 }
3433}
3434
3435#[derive(Clone, Debug, PartialEq, Eq)]
3436pub struct Entry {
3437 pub id: ProjectEntryId,
3438 pub kind: EntryKind,
3439 pub path: Arc<Path>,
3440 pub inode: u64,
3441 pub mtime: Option<MTime>,
3442
3443 pub canonical_path: Option<Arc<Path>>,
3444 /// Whether this entry is ignored by Git.
3445 ///
3446 /// We only scan ignored entries once the directory is expanded and
3447 /// exclude them from searches.
3448 pub is_ignored: bool,
3449
3450 /// Whether this entry is always included in searches.
3451 ///
3452 /// This is used for entries that are always included in searches, even
3453 /// if they are ignored by git. Overridden by file_scan_exclusions.
3454 pub is_always_included: bool,
3455
3456 /// Whether this entry's canonical path is outside of the worktree.
3457 /// This means the entry is only accessible from the worktree root via a
3458 /// symlink.
3459 ///
3460 /// We only scan entries outside of the worktree once the symlinked
3461 /// directory is expanded. External entries are treated like gitignored
3462 /// entries in that they are not included in searches.
3463 pub is_external: bool,
3464
3465 /// Whether this entry is considered to be a `.env` file.
3466 pub is_private: bool,
3467 /// The entry's size on disk, in bytes.
3468 pub size: u64,
3469 pub char_bag: CharBag,
3470 pub is_fifo: bool,
3471}
3472
3473#[derive(Clone, Copy, Debug, PartialEq, Eq)]
3474pub enum EntryKind {
3475 UnloadedDir,
3476 PendingDir,
3477 Dir,
3478 File,
3479}
3480
3481#[derive(Clone, Copy, Debug, PartialEq)]
3482pub enum PathChange {
3483 /// A filesystem entry was was created.
3484 Added,
3485 /// A filesystem entry was removed.
3486 Removed,
3487 /// A filesystem entry was updated.
3488 Updated,
3489 /// A filesystem entry was either updated or added. We don't know
3490 /// whether or not it already existed, because the path had not
3491 /// been loaded before the event.
3492 AddedOrUpdated,
3493 /// A filesystem entry was found during the initial scan of the worktree.
3494 Loaded,
3495}
3496
3497#[derive(Clone, Debug, PartialEq, Eq)]
3498pub struct UpdatedGitRepository {
3499 /// ID of the repository's working directory.
3500 ///
3501 /// For a repo that's above the worktree root, this is the ID of the worktree root, and hence not unique.
3502 /// It's included here to aid the GitStore in detecting when a repository's working directory is renamed.
3503 pub work_directory_id: ProjectEntryId,
3504 pub old_work_directory_abs_path: Option<Arc<Path>>,
3505 pub new_work_directory_abs_path: Option<Arc<Path>>,
3506 /// For a normal git repository checkout, the absolute path to the .git directory.
3507 /// For a worktree, the absolute path to the worktree's subdirectory inside the .git directory.
3508 pub dot_git_abs_path: Option<Arc<Path>>,
3509 pub repository_dir_abs_path: Option<Arc<Path>>,
3510 pub common_dir_abs_path: Option<Arc<Path>>,
3511}
3512
3513pub type UpdatedEntriesSet = Arc<[(Arc<Path>, ProjectEntryId, PathChange)]>;
3514pub type UpdatedGitRepositoriesSet = Arc<[UpdatedGitRepository]>;
3515
3516#[derive(Clone, Debug)]
3517pub struct PathProgress<'a> {
3518 pub max_path: &'a Path,
3519}
3520
3521#[derive(Clone, Debug)]
3522pub struct PathSummary<S> {
3523 pub max_path: Arc<Path>,
3524 pub item_summary: S,
3525}
3526
3527impl<S: Summary> Summary for PathSummary<S> {
3528 type Context = S::Context;
3529
3530 fn zero(cx: &Self::Context) -> Self {
3531 Self {
3532 max_path: Path::new("").into(),
3533 item_summary: S::zero(cx),
3534 }
3535 }
3536
3537 fn add_summary(&mut self, rhs: &Self, cx: &Self::Context) {
3538 self.max_path = rhs.max_path.clone();
3539 self.item_summary.add_summary(&rhs.item_summary, cx);
3540 }
3541}
3542
3543impl<'a, S: Summary> sum_tree::Dimension<'a, PathSummary<S>> for PathProgress<'a> {
3544 fn zero(_: &<PathSummary<S> as Summary>::Context) -> Self {
3545 Self {
3546 max_path: Path::new(""),
3547 }
3548 }
3549
3550 fn add_summary(
3551 &mut self,
3552 summary: &'a PathSummary<S>,
3553 _: &<PathSummary<S> as Summary>::Context,
3554 ) {
3555 self.max_path = summary.max_path.as_ref()
3556 }
3557}
3558
3559impl<'a> sum_tree::Dimension<'a, PathSummary<GitSummary>> for GitSummary {
3560 fn zero(_cx: &()) -> Self {
3561 Default::default()
3562 }
3563
3564 fn add_summary(&mut self, summary: &'a PathSummary<GitSummary>, _: &()) {
3565 *self += summary.item_summary
3566 }
3567}
3568
3569impl<'a> sum_tree::SeekTarget<'a, PathSummary<GitSummary>, (TraversalProgress<'a>, GitSummary)>
3570 for PathTarget<'_>
3571{
3572 fn cmp(&self, cursor_location: &(TraversalProgress<'a>, GitSummary), _: &()) -> Ordering {
3573 self.cmp_path(&cursor_location.0.max_path)
3574 }
3575}
3576
3577impl<'a, S: Summary> sum_tree::Dimension<'a, PathSummary<S>> for PathKey {
3578 fn zero(_: &S::Context) -> Self {
3579 Default::default()
3580 }
3581
3582 fn add_summary(&mut self, summary: &'a PathSummary<S>, _: &S::Context) {
3583 self.0 = summary.max_path.clone();
3584 }
3585}
3586
3587impl<'a, S: Summary> sum_tree::Dimension<'a, PathSummary<S>> for TraversalProgress<'a> {
3588 fn zero(_cx: &S::Context) -> Self {
3589 Default::default()
3590 }
3591
3592 fn add_summary(&mut self, summary: &'a PathSummary<S>, _: &S::Context) {
3593 self.max_path = summary.max_path.as_ref();
3594 }
3595}
3596
3597impl Entry {
3598 fn new(
3599 path: Arc<Path>,
3600 metadata: &fs::Metadata,
3601 next_entry_id: &AtomicUsize,
3602 root_char_bag: CharBag,
3603 canonical_path: Option<Arc<Path>>,
3604 ) -> Self {
3605 let char_bag = char_bag_for_path(root_char_bag, &path);
3606 Self {
3607 id: ProjectEntryId::new(next_entry_id),
3608 kind: if metadata.is_dir {
3609 EntryKind::PendingDir
3610 } else {
3611 EntryKind::File
3612 },
3613 path,
3614 inode: metadata.inode,
3615 mtime: Some(metadata.mtime),
3616 size: metadata.len,
3617 canonical_path,
3618 is_ignored: false,
3619 is_always_included: false,
3620 is_external: false,
3621 is_private: false,
3622 char_bag,
3623 is_fifo: metadata.is_fifo,
3624 }
3625 }
3626
3627 pub fn is_created(&self) -> bool {
3628 self.mtime.is_some()
3629 }
3630
3631 pub fn is_dir(&self) -> bool {
3632 self.kind.is_dir()
3633 }
3634
3635 pub fn is_file(&self) -> bool {
3636 self.kind.is_file()
3637 }
3638}
3639
3640impl EntryKind {
3641 pub fn is_dir(&self) -> bool {
3642 matches!(
3643 self,
3644 EntryKind::Dir | EntryKind::PendingDir | EntryKind::UnloadedDir
3645 )
3646 }
3647
3648 pub fn is_unloaded(&self) -> bool {
3649 matches!(self, EntryKind::UnloadedDir)
3650 }
3651
3652 pub fn is_file(&self) -> bool {
3653 matches!(self, EntryKind::File)
3654 }
3655}
3656
3657impl sum_tree::Item for Entry {
3658 type Summary = EntrySummary;
3659
3660 fn summary(&self, _cx: &()) -> Self::Summary {
3661 let non_ignored_count = if (self.is_ignored || self.is_external) && !self.is_always_included
3662 {
3663 0
3664 } else {
3665 1
3666 };
3667 let file_count;
3668 let non_ignored_file_count;
3669 if self.is_file() {
3670 file_count = 1;
3671 non_ignored_file_count = non_ignored_count;
3672 } else {
3673 file_count = 0;
3674 non_ignored_file_count = 0;
3675 }
3676
3677 EntrySummary {
3678 max_path: self.path.clone(),
3679 count: 1,
3680 non_ignored_count,
3681 file_count,
3682 non_ignored_file_count,
3683 }
3684 }
3685}
3686
3687impl sum_tree::KeyedItem for Entry {
3688 type Key = PathKey;
3689
3690 fn key(&self) -> Self::Key {
3691 PathKey(self.path.clone())
3692 }
3693}
3694
3695#[derive(Clone, Debug)]
3696pub struct EntrySummary {
3697 max_path: Arc<Path>,
3698 count: usize,
3699 non_ignored_count: usize,
3700 file_count: usize,
3701 non_ignored_file_count: usize,
3702}
3703
3704impl Default for EntrySummary {
3705 fn default() -> Self {
3706 Self {
3707 max_path: Arc::from(Path::new("")),
3708 count: 0,
3709 non_ignored_count: 0,
3710 file_count: 0,
3711 non_ignored_file_count: 0,
3712 }
3713 }
3714}
3715
3716impl sum_tree::Summary for EntrySummary {
3717 type Context = ();
3718
3719 fn zero(_cx: &()) -> Self {
3720 Default::default()
3721 }
3722
3723 fn add_summary(&mut self, rhs: &Self, _: &()) {
3724 self.max_path = rhs.max_path.clone();
3725 self.count += rhs.count;
3726 self.non_ignored_count += rhs.non_ignored_count;
3727 self.file_count += rhs.file_count;
3728 self.non_ignored_file_count += rhs.non_ignored_file_count;
3729 }
3730}
3731
3732#[derive(Clone, Debug)]
3733struct PathEntry {
3734 id: ProjectEntryId,
3735 path: Arc<Path>,
3736 is_ignored: bool,
3737 scan_id: usize,
3738}
3739
3740impl sum_tree::Item for PathEntry {
3741 type Summary = PathEntrySummary;
3742
3743 fn summary(&self, _cx: &()) -> Self::Summary {
3744 PathEntrySummary { max_id: self.id }
3745 }
3746}
3747
3748impl sum_tree::KeyedItem for PathEntry {
3749 type Key = ProjectEntryId;
3750
3751 fn key(&self) -> Self::Key {
3752 self.id
3753 }
3754}
3755
3756#[derive(Clone, Debug, Default)]
3757struct PathEntrySummary {
3758 max_id: ProjectEntryId,
3759}
3760
3761impl sum_tree::Summary for PathEntrySummary {
3762 type Context = ();
3763
3764 fn zero(_cx: &Self::Context) -> Self {
3765 Default::default()
3766 }
3767
3768 fn add_summary(&mut self, summary: &Self, _: &Self::Context) {
3769 self.max_id = summary.max_id;
3770 }
3771}
3772
3773impl<'a> sum_tree::Dimension<'a, PathEntrySummary> for ProjectEntryId {
3774 fn zero(_cx: &()) -> Self {
3775 Default::default()
3776 }
3777
3778 fn add_summary(&mut self, summary: &'a PathEntrySummary, _: &()) {
3779 *self = summary.max_id;
3780 }
3781}
3782
3783#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
3784pub struct PathKey(pub Arc<Path>);
3785
3786impl Default for PathKey {
3787 fn default() -> Self {
3788 Self(Path::new("").into())
3789 }
3790}
3791
3792impl<'a> sum_tree::Dimension<'a, EntrySummary> for PathKey {
3793 fn zero(_cx: &()) -> Self {
3794 Default::default()
3795 }
3796
3797 fn add_summary(&mut self, summary: &'a EntrySummary, _: &()) {
3798 self.0 = summary.max_path.clone();
3799 }
3800}
3801
3802struct BackgroundScanner {
3803 state: Mutex<BackgroundScannerState>,
3804 fs: Arc<dyn Fs>,
3805 fs_case_sensitive: bool,
3806 status_updates_tx: UnboundedSender<ScanState>,
3807 executor: BackgroundExecutor,
3808 scan_requests_rx: channel::Receiver<ScanRequest>,
3809 path_prefixes_to_scan_rx: channel::Receiver<PathPrefixScanRequest>,
3810 next_entry_id: Arc<AtomicUsize>,
3811 phase: BackgroundScannerPhase,
3812 watcher: Arc<dyn Watcher>,
3813 settings: WorktreeSettings,
3814 share_private_files: bool,
3815}
3816
3817#[derive(Copy, Clone, PartialEq)]
3818enum BackgroundScannerPhase {
3819 InitialScan,
3820 EventsReceivedDuringInitialScan,
3821 Events,
3822}
3823
3824impl BackgroundScanner {
3825 async fn run(&mut self, mut fs_events_rx: Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>) {
3826 // If the worktree root does not contain a git repository, then find
3827 // the git repository in an ancestor directory. Find any gitignore files
3828 // in ancestor directories.
3829 let root_abs_path = self.state.lock().snapshot.abs_path.clone();
3830 let (ignores, repo) = discover_ancestor_git_repo(self.fs.clone(), &root_abs_path).await;
3831 self.state
3832 .lock()
3833 .snapshot
3834 .ignores_by_parent_abs_path
3835 .extend(ignores);
3836 let containing_git_repository = repo.and_then(|(ancestor_dot_git, work_directory)| {
3837 self.state.lock().insert_git_repository_for_path(
3838 work_directory,
3839 ancestor_dot_git.as_path().into(),
3840 self.fs.as_ref(),
3841 self.watcher.as_ref(),
3842 )?;
3843 Some(ancestor_dot_git)
3844 });
3845
3846 log::trace!("containing git repository: {containing_git_repository:?}");
3847
3848 let (scan_job_tx, scan_job_rx) = channel::unbounded();
3849 {
3850 let mut state = self.state.lock();
3851 state.snapshot.scan_id += 1;
3852 if let Some(mut root_entry) = state.snapshot.root_entry().cloned() {
3853 let ignore_stack = state
3854 .snapshot
3855 .ignore_stack_for_abs_path(root_abs_path.as_path(), true);
3856 if ignore_stack.is_abs_path_ignored(root_abs_path.as_path(), true) {
3857 root_entry.is_ignored = true;
3858 state.insert_entry(root_entry.clone(), self.fs.as_ref(), self.watcher.as_ref());
3859 }
3860 state.enqueue_scan_dir(root_abs_path.into(), &root_entry, &scan_job_tx);
3861 }
3862 };
3863
3864 // Perform an initial scan of the directory.
3865 drop(scan_job_tx);
3866 self.scan_dirs(true, scan_job_rx).await;
3867 {
3868 let mut state = self.state.lock();
3869 state.snapshot.completed_scan_id = state.snapshot.scan_id;
3870 }
3871
3872 self.send_status_update(false, SmallVec::new());
3873
3874 // Process any any FS events that occurred while performing the initial scan.
3875 // For these events, update events cannot be as precise, because we didn't
3876 // have the previous state loaded yet.
3877 self.phase = BackgroundScannerPhase::EventsReceivedDuringInitialScan;
3878 if let Poll::Ready(Some(mut paths)) = futures::poll!(fs_events_rx.next()) {
3879 while let Poll::Ready(Some(more_paths)) = futures::poll!(fs_events_rx.next()) {
3880 paths.extend(more_paths);
3881 }
3882 self.process_events(paths.into_iter().map(Into::into).collect())
3883 .await;
3884 }
3885 if let Some(abs_path) = containing_git_repository {
3886 self.process_events(vec![abs_path]).await;
3887 }
3888
3889 // Continue processing events until the worktree is dropped.
3890 self.phase = BackgroundScannerPhase::Events;
3891
3892 loop {
3893 select_biased! {
3894 // Process any path refresh requests from the worktree. Prioritize
3895 // these before handling changes reported by the filesystem.
3896 request = self.next_scan_request().fuse() => {
3897 let Ok(request) = request else { break };
3898 if !self.process_scan_request(request, false).await {
3899 return;
3900 }
3901 }
3902
3903 path_prefix_request = self.path_prefixes_to_scan_rx.recv().fuse() => {
3904 let Ok(request) = path_prefix_request else { break };
3905 log::trace!("adding path prefix {:?}", request.path);
3906
3907 let did_scan = self.forcibly_load_paths(std::slice::from_ref(&request.path)).await;
3908 if did_scan {
3909 let abs_path =
3910 {
3911 let mut state = self.state.lock();
3912 state.path_prefixes_to_scan.insert(request.path.clone());
3913 state.snapshot.abs_path.as_path().join(&request.path)
3914 };
3915
3916 if let Some(abs_path) = self.fs.canonicalize(&abs_path).await.log_err() {
3917 self.process_events(vec![abs_path]).await;
3918 }
3919 }
3920 self.send_status_update(false, request.done);
3921 }
3922
3923 paths = fs_events_rx.next().fuse() => {
3924 let Some(mut paths) = paths else { break };
3925 while let Poll::Ready(Some(more_paths)) = futures::poll!(fs_events_rx.next()) {
3926 paths.extend(more_paths);
3927 }
3928 self.process_events(paths.into_iter().map(Into::into).collect()).await;
3929 }
3930 }
3931 }
3932 }
3933
3934 async fn process_scan_request(&self, mut request: ScanRequest, scanning: bool) -> bool {
3935 log::debug!("rescanning paths {:?}", request.relative_paths);
3936
3937 request.relative_paths.sort_unstable();
3938 self.forcibly_load_paths(&request.relative_paths).await;
3939
3940 let root_path = self.state.lock().snapshot.abs_path.clone();
3941 let root_canonical_path = match self.fs.canonicalize(root_path.as_path()).await {
3942 Ok(path) => SanitizedPath::from(path),
3943 Err(err) => {
3944 log::error!("failed to canonicalize root path {root_path:?}: {err}");
3945 return true;
3946 }
3947 };
3948 let abs_paths = request
3949 .relative_paths
3950 .iter()
3951 .map(|path| {
3952 if path.file_name().is_some() {
3953 root_canonical_path.as_path().join(path).to_path_buf()
3954 } else {
3955 root_canonical_path.as_path().to_path_buf()
3956 }
3957 })
3958 .collect::<Vec<_>>();
3959
3960 {
3961 let mut state = self.state.lock();
3962 let is_idle = state.snapshot.completed_scan_id == state.snapshot.scan_id;
3963 state.snapshot.scan_id += 1;
3964 if is_idle {
3965 state.snapshot.completed_scan_id = state.snapshot.scan_id;
3966 }
3967 }
3968
3969 self.reload_entries_for_paths(
3970 root_path,
3971 root_canonical_path,
3972 &request.relative_paths,
3973 abs_paths,
3974 None,
3975 )
3976 .await;
3977
3978 self.send_status_update(scanning, request.done)
3979 }
3980
3981 async fn process_events(&self, mut abs_paths: Vec<PathBuf>) {
3982 let root_path = self.state.lock().snapshot.abs_path.clone();
3983 let root_canonical_path = match self.fs.canonicalize(root_path.as_path()).await {
3984 Ok(path) => SanitizedPath::from(path),
3985 Err(err) => {
3986 let new_path = self
3987 .state
3988 .lock()
3989 .snapshot
3990 .root_file_handle
3991 .clone()
3992 .and_then(|handle| handle.current_path(&self.fs).log_err())
3993 .map(SanitizedPath::from)
3994 .filter(|new_path| *new_path != root_path);
3995
3996 if let Some(new_path) = new_path.as_ref() {
3997 log::info!(
3998 "root renamed from {} to {}",
3999 root_path.as_path().display(),
4000 new_path.as_path().display()
4001 )
4002 } else {
4003 log::warn!("root path could not be canonicalized: {}", err);
4004 }
4005 self.status_updates_tx
4006 .unbounded_send(ScanState::RootUpdated { new_path })
4007 .ok();
4008 return;
4009 }
4010 };
4011
4012 // Certain directories may have FS changes, but do not lead to git data changes that Zed cares about.
4013 // Ignore these, to avoid Zed unnecessarily rescanning git metadata.
4014 let skipped_files_in_dot_git = HashSet::from_iter([*COMMIT_MESSAGE, *INDEX_LOCK]);
4015 let skipped_dirs_in_dot_git = [*FSMONITOR_DAEMON, *LFS_DIR];
4016
4017 let mut relative_paths = Vec::with_capacity(abs_paths.len());
4018 let mut dot_git_abs_paths = Vec::new();
4019 abs_paths.sort_unstable();
4020 abs_paths.dedup_by(|a, b| a.starts_with(b));
4021 abs_paths.retain(|abs_path| {
4022 let abs_path = SanitizedPath::from(abs_path);
4023
4024 let snapshot = &self.state.lock().snapshot;
4025 {
4026 let mut is_git_related = false;
4027
4028 let dot_git_paths = abs_path.as_path().ancestors().find_map(|ancestor| {
4029 if smol::block_on(is_git_dir(ancestor, self.fs.as_ref())) {
4030 let path_in_git_dir = abs_path.as_path().strip_prefix(ancestor).expect("stripping off the ancestor");
4031 Some((ancestor.to_owned(), path_in_git_dir.to_owned()))
4032 } else {
4033 None
4034 }
4035 });
4036
4037 if let Some((dot_git_abs_path, path_in_git_dir)) = dot_git_paths {
4038 if skipped_files_in_dot_git.contains(path_in_git_dir.as_os_str()) || skipped_dirs_in_dot_git.iter().any(|skipped_git_subdir| path_in_git_dir.starts_with(skipped_git_subdir)) {
4039 log::debug!("ignoring event {abs_path:?} as it's in the .git directory among skipped files or directories");
4040 return false;
4041 }
4042
4043 is_git_related = true;
4044 if !dot_git_abs_paths.contains(&dot_git_abs_path) {
4045 dot_git_abs_paths.push(dot_git_abs_path);
4046 }
4047 }
4048
4049 let relative_path: Arc<Path> =
4050 if let Ok(path) = abs_path.strip_prefix(&root_canonical_path) {
4051 path.into()
4052 } else {
4053 if is_git_related {
4054 log::debug!(
4055 "ignoring event {abs_path:?}, since it's in git dir outside of root path {root_canonical_path:?}",
4056 );
4057 } else {
4058 log::error!(
4059 "ignoring event {abs_path:?} outside of root path {root_canonical_path:?}",
4060 );
4061 }
4062 return false;
4063 };
4064
4065 if abs_path.0.file_name() == Some(*GITIGNORE) {
4066 for (_, repo) in snapshot.git_repositories.iter().filter(|(_, repo)| repo.directory_contains(&relative_path)) {
4067 if !dot_git_abs_paths.iter().any(|dot_git_abs_path| dot_git_abs_path == repo.common_dir_abs_path.as_ref()) {
4068 dot_git_abs_paths.push(repo.common_dir_abs_path.to_path_buf());
4069 }
4070 }
4071 }
4072
4073 let parent_dir_is_loaded = relative_path.parent().map_or(true, |parent| {
4074 snapshot
4075 .entry_for_path(parent)
4076 .map_or(false, |entry| entry.kind == EntryKind::Dir)
4077 });
4078 if !parent_dir_is_loaded {
4079 log::debug!("ignoring event {relative_path:?} within unloaded directory");
4080 return false;
4081 }
4082
4083 if self.settings.is_path_excluded(&relative_path) {
4084 if !is_git_related {
4085 log::debug!("ignoring FS event for excluded path {relative_path:?}");
4086 }
4087 return false;
4088 }
4089
4090 relative_paths.push(relative_path);
4091 true
4092 }
4093 });
4094
4095 if relative_paths.is_empty() && dot_git_abs_paths.is_empty() {
4096 return;
4097 }
4098
4099 self.state.lock().snapshot.scan_id += 1;
4100
4101 let (scan_job_tx, scan_job_rx) = channel::unbounded();
4102 log::debug!("received fs events {:?}", relative_paths);
4103 self.reload_entries_for_paths(
4104 root_path,
4105 root_canonical_path,
4106 &relative_paths,
4107 abs_paths,
4108 Some(scan_job_tx.clone()),
4109 )
4110 .await;
4111
4112 self.update_ignore_statuses(scan_job_tx).await;
4113 self.scan_dirs(false, scan_job_rx).await;
4114
4115 if !dot_git_abs_paths.is_empty() {
4116 self.update_git_repositories(dot_git_abs_paths);
4117 }
4118
4119 {
4120 let mut state = self.state.lock();
4121 state.snapshot.completed_scan_id = state.snapshot.scan_id;
4122 for (_, entry) in mem::take(&mut state.removed_entries) {
4123 state.scanned_dirs.remove(&entry.id);
4124 }
4125 }
4126 self.send_status_update(false, SmallVec::new());
4127 }
4128
4129 async fn forcibly_load_paths(&self, paths: &[Arc<Path>]) -> bool {
4130 let (scan_job_tx, scan_job_rx) = channel::unbounded();
4131 {
4132 let mut state = self.state.lock();
4133 let root_path = state.snapshot.abs_path.clone();
4134 for path in paths {
4135 for ancestor in path.ancestors() {
4136 if let Some(entry) = state.snapshot.entry_for_path(ancestor) {
4137 if entry.kind == EntryKind::UnloadedDir {
4138 let abs_path = root_path.as_path().join(ancestor);
4139 state.enqueue_scan_dir(abs_path.into(), entry, &scan_job_tx);
4140 state.paths_to_scan.insert(path.clone());
4141 break;
4142 }
4143 }
4144 }
4145 }
4146 drop(scan_job_tx);
4147 }
4148 while let Ok(job) = scan_job_rx.recv().await {
4149 self.scan_dir(&job).await.log_err();
4150 }
4151
4152 !mem::take(&mut self.state.lock().paths_to_scan).is_empty()
4153 }
4154
4155 async fn scan_dirs(
4156 &self,
4157 enable_progress_updates: bool,
4158 scan_jobs_rx: channel::Receiver<ScanJob>,
4159 ) {
4160 if self
4161 .status_updates_tx
4162 .unbounded_send(ScanState::Started)
4163 .is_err()
4164 {
4165 return;
4166 }
4167
4168 let progress_update_count = AtomicUsize::new(0);
4169 self.executor
4170 .scoped(|scope| {
4171 for _ in 0..self.executor.num_cpus() {
4172 scope.spawn(async {
4173 let mut last_progress_update_count = 0;
4174 let progress_update_timer = self.progress_timer(enable_progress_updates).fuse();
4175 futures::pin_mut!(progress_update_timer);
4176
4177 loop {
4178 select_biased! {
4179 // Process any path refresh requests before moving on to process
4180 // the scan queue, so that user operations are prioritized.
4181 request = self.next_scan_request().fuse() => {
4182 let Ok(request) = request else { break };
4183 if !self.process_scan_request(request, true).await {
4184 return;
4185 }
4186 }
4187
4188 // Send periodic progress updates to the worktree. Use an atomic counter
4189 // to ensure that only one of the workers sends a progress update after
4190 // the update interval elapses.
4191 _ = progress_update_timer => {
4192 match progress_update_count.compare_exchange(
4193 last_progress_update_count,
4194 last_progress_update_count + 1,
4195 SeqCst,
4196 SeqCst
4197 ) {
4198 Ok(_) => {
4199 last_progress_update_count += 1;
4200 self.send_status_update(true, SmallVec::new());
4201 }
4202 Err(count) => {
4203 last_progress_update_count = count;
4204 }
4205 }
4206 progress_update_timer.set(self.progress_timer(enable_progress_updates).fuse());
4207 }
4208
4209 // Recursively load directories from the file system.
4210 job = scan_jobs_rx.recv().fuse() => {
4211 let Ok(job) = job else { break };
4212 if let Err(err) = self.scan_dir(&job).await {
4213 if job.path.as_ref() != Path::new("") {
4214 log::error!("error scanning directory {:?}: {}", job.abs_path, err);
4215 }
4216 }
4217 }
4218 }
4219 }
4220 });
4221 }
4222 })
4223 .await;
4224 }
4225
4226 fn send_status_update(&self, scanning: bool, barrier: SmallVec<[barrier::Sender; 1]>) -> bool {
4227 let mut state = self.state.lock();
4228 if state.changed_paths.is_empty() && scanning {
4229 return true;
4230 }
4231
4232 let new_snapshot = state.snapshot.clone();
4233 let old_snapshot = mem::replace(&mut state.prev_snapshot, new_snapshot.snapshot.clone());
4234 let changes = build_diff(
4235 self.phase,
4236 &old_snapshot,
4237 &new_snapshot,
4238 &state.changed_paths,
4239 );
4240 state.changed_paths.clear();
4241
4242 self.status_updates_tx
4243 .unbounded_send(ScanState::Updated {
4244 snapshot: new_snapshot,
4245 changes,
4246 scanning,
4247 barrier,
4248 })
4249 .is_ok()
4250 }
4251
4252 async fn scan_dir(&self, job: &ScanJob) -> Result<()> {
4253 let root_abs_path;
4254 let root_char_bag;
4255 {
4256 let snapshot = &self.state.lock().snapshot;
4257 if self.settings.is_path_excluded(&job.path) {
4258 log::error!("skipping excluded directory {:?}", job.path);
4259 return Ok(());
4260 }
4261 log::trace!("scanning directory {:?}", job.path);
4262 root_abs_path = snapshot.abs_path().clone();
4263 root_char_bag = snapshot.root_char_bag;
4264 }
4265
4266 let next_entry_id = self.next_entry_id.clone();
4267 let mut ignore_stack = job.ignore_stack.clone();
4268 let mut new_ignore = None;
4269 let mut root_canonical_path = None;
4270 let mut new_entries: Vec<Entry> = Vec::new();
4271 let mut new_jobs: Vec<Option<ScanJob>> = Vec::new();
4272 let mut child_paths = self
4273 .fs
4274 .read_dir(&job.abs_path)
4275 .await?
4276 .filter_map(|entry| async {
4277 match entry {
4278 Ok(entry) => Some(entry),
4279 Err(error) => {
4280 log::error!("error processing entry {:?}", error);
4281 None
4282 }
4283 }
4284 })
4285 .collect::<Vec<_>>()
4286 .await;
4287
4288 // Ensure that .git and .gitignore are processed first.
4289 swap_to_front(&mut child_paths, *GITIGNORE);
4290 swap_to_front(&mut child_paths, *DOT_GIT);
4291
4292 for child_abs_path in child_paths {
4293 let child_abs_path: Arc<Path> = child_abs_path.into();
4294 let child_name = child_abs_path.file_name().unwrap();
4295 let child_path: Arc<Path> = job.path.join(child_name).into();
4296
4297 if child_name == *DOT_GIT {
4298 let mut state = self.state.lock();
4299 state.insert_git_repository(
4300 child_path.clone(),
4301 self.fs.as_ref(),
4302 self.watcher.as_ref(),
4303 );
4304 } else if child_name == *GITIGNORE {
4305 match build_gitignore(&child_abs_path, self.fs.as_ref()).await {
4306 Ok(ignore) => {
4307 let ignore = Arc::new(ignore);
4308 ignore_stack = ignore_stack.append(job.abs_path.clone(), ignore.clone());
4309 new_ignore = Some(ignore);
4310 }
4311 Err(error) => {
4312 log::error!(
4313 "error loading .gitignore file {:?} - {:?}",
4314 child_name,
4315 error
4316 );
4317 }
4318 }
4319 }
4320
4321 if self.settings.is_path_excluded(&child_path) {
4322 log::debug!("skipping excluded child entry {child_path:?}");
4323 self.state.lock().remove_path(&child_path);
4324 continue;
4325 }
4326
4327 let child_metadata = match self.fs.metadata(&child_abs_path).await {
4328 Ok(Some(metadata)) => metadata,
4329 Ok(None) => continue,
4330 Err(err) => {
4331 log::error!("error processing {child_abs_path:?}: {err:?}");
4332 continue;
4333 }
4334 };
4335
4336 let mut child_entry = Entry::new(
4337 child_path.clone(),
4338 &child_metadata,
4339 &next_entry_id,
4340 root_char_bag,
4341 None,
4342 );
4343
4344 if job.is_external {
4345 child_entry.is_external = true;
4346 } else if child_metadata.is_symlink {
4347 let canonical_path = match self.fs.canonicalize(&child_abs_path).await {
4348 Ok(path) => path,
4349 Err(err) => {
4350 log::error!("error reading target of symlink {child_abs_path:?}: {err:#}",);
4351 continue;
4352 }
4353 };
4354
4355 // lazily canonicalize the root path in order to determine if
4356 // symlinks point outside of the worktree.
4357 let root_canonical_path = match &root_canonical_path {
4358 Some(path) => path,
4359 None => match self.fs.canonicalize(&root_abs_path).await {
4360 Ok(path) => root_canonical_path.insert(path),
4361 Err(err) => {
4362 log::error!("error canonicalizing root {:?}: {:?}", root_abs_path, err);
4363 continue;
4364 }
4365 },
4366 };
4367
4368 if !canonical_path.starts_with(root_canonical_path) {
4369 child_entry.is_external = true;
4370 }
4371
4372 child_entry.canonical_path = Some(canonical_path.into());
4373 }
4374
4375 if child_entry.is_dir() {
4376 child_entry.is_ignored = ignore_stack.is_abs_path_ignored(&child_abs_path, true);
4377 child_entry.is_always_included = self.settings.is_path_always_included(&child_path);
4378
4379 // Avoid recursing until crash in the case of a recursive symlink
4380 if job.ancestor_inodes.contains(&child_entry.inode) {
4381 new_jobs.push(None);
4382 } else {
4383 let mut ancestor_inodes = job.ancestor_inodes.clone();
4384 ancestor_inodes.insert(child_entry.inode);
4385
4386 new_jobs.push(Some(ScanJob {
4387 abs_path: child_abs_path.clone(),
4388 path: child_path,
4389 is_external: child_entry.is_external,
4390 ignore_stack: if child_entry.is_ignored {
4391 IgnoreStack::all()
4392 } else {
4393 ignore_stack.clone()
4394 },
4395 ancestor_inodes,
4396 scan_queue: job.scan_queue.clone(),
4397 }));
4398 }
4399 } else {
4400 child_entry.is_ignored = ignore_stack.is_abs_path_ignored(&child_abs_path, false);
4401 child_entry.is_always_included = self.settings.is_path_always_included(&child_path);
4402 }
4403
4404 {
4405 let relative_path = job.path.join(child_name);
4406 if self.is_path_private(&relative_path) {
4407 log::debug!("detected private file: {relative_path:?}");
4408 child_entry.is_private = true;
4409 }
4410 }
4411
4412 new_entries.push(child_entry);
4413 }
4414
4415 let mut state = self.state.lock();
4416
4417 // Identify any subdirectories that should not be scanned.
4418 let mut job_ix = 0;
4419 for entry in &mut new_entries {
4420 state.reuse_entry_id(entry);
4421 if entry.is_dir() {
4422 if state.should_scan_directory(entry) {
4423 job_ix += 1;
4424 } else {
4425 log::debug!("defer scanning directory {:?}", entry.path);
4426 entry.kind = EntryKind::UnloadedDir;
4427 new_jobs.remove(job_ix);
4428 }
4429 }
4430 if entry.is_always_included {
4431 state
4432 .snapshot
4433 .always_included_entries
4434 .push(entry.path.clone());
4435 }
4436 }
4437
4438 state.populate_dir(&job.path, new_entries, new_ignore);
4439 self.watcher.add(job.abs_path.as_ref()).log_err();
4440
4441 for new_job in new_jobs.into_iter().flatten() {
4442 job.scan_queue
4443 .try_send(new_job)
4444 .expect("channel is unbounded");
4445 }
4446
4447 Ok(())
4448 }
4449
4450 /// All list arguments should be sorted before calling this function
4451 async fn reload_entries_for_paths(
4452 &self,
4453 root_abs_path: SanitizedPath,
4454 root_canonical_path: SanitizedPath,
4455 relative_paths: &[Arc<Path>],
4456 abs_paths: Vec<PathBuf>,
4457 scan_queue_tx: Option<Sender<ScanJob>>,
4458 ) {
4459 // grab metadata for all requested paths
4460 let metadata = futures::future::join_all(
4461 abs_paths
4462 .iter()
4463 .map(|abs_path| async move {
4464 let metadata = self.fs.metadata(abs_path).await?;
4465 if let Some(metadata) = metadata {
4466 let canonical_path = self.fs.canonicalize(abs_path).await?;
4467
4468 // If we're on a case-insensitive filesystem (default on macOS), we want
4469 // to only ignore metadata for non-symlink files if their absolute-path matches
4470 // the canonical-path.
4471 // Because if not, this might be a case-only-renaming (`mv test.txt TEST.TXT`)
4472 // and we want to ignore the metadata for the old path (`test.txt`) so it's
4473 // treated as removed.
4474 if !self.fs_case_sensitive && !metadata.is_symlink {
4475 let canonical_file_name = canonical_path.file_name();
4476 let file_name = abs_path.file_name();
4477 if canonical_file_name != file_name {
4478 return Ok(None);
4479 }
4480 }
4481
4482 anyhow::Ok(Some((metadata, SanitizedPath::from(canonical_path))))
4483 } else {
4484 Ok(None)
4485 }
4486 })
4487 .collect::<Vec<_>>(),
4488 )
4489 .await;
4490
4491 let mut new_ancestor_repo = if relative_paths
4492 .iter()
4493 .any(|path| path.as_ref() == Path::new(""))
4494 {
4495 Some(discover_ancestor_git_repo(self.fs.clone(), &root_abs_path).await)
4496 } else {
4497 None
4498 };
4499
4500 let mut state = self.state.lock();
4501 let doing_recursive_update = scan_queue_tx.is_some();
4502
4503 // Remove any entries for paths that no longer exist or are being recursively
4504 // refreshed. Do this before adding any new entries, so that renames can be
4505 // detected regardless of the order of the paths.
4506 for (path, metadata) in relative_paths.iter().zip(metadata.iter()) {
4507 if matches!(metadata, Ok(None)) || doing_recursive_update {
4508 log::trace!("remove path {:?}", path);
4509 state.remove_path(path);
4510 }
4511 }
4512
4513 for (path, metadata) in relative_paths.iter().zip(metadata.into_iter()) {
4514 let abs_path: Arc<Path> = root_abs_path.as_path().join(path).into();
4515 match metadata {
4516 Ok(Some((metadata, canonical_path))) => {
4517 let ignore_stack = state
4518 .snapshot
4519 .ignore_stack_for_abs_path(&abs_path, metadata.is_dir);
4520 let is_external = !canonical_path.starts_with(&root_canonical_path);
4521 let mut fs_entry = Entry::new(
4522 path.clone(),
4523 &metadata,
4524 self.next_entry_id.as_ref(),
4525 state.snapshot.root_char_bag,
4526 if metadata.is_symlink {
4527 Some(canonical_path.as_path().to_path_buf().into())
4528 } else {
4529 None
4530 },
4531 );
4532
4533 let is_dir = fs_entry.is_dir();
4534 fs_entry.is_ignored = ignore_stack.is_abs_path_ignored(&abs_path, is_dir);
4535 fs_entry.is_external = is_external;
4536 fs_entry.is_private = self.is_path_private(path);
4537 fs_entry.is_always_included = self.settings.is_path_always_included(path);
4538
4539 if let (Some(scan_queue_tx), true) = (&scan_queue_tx, is_dir) {
4540 if state.should_scan_directory(&fs_entry)
4541 || (fs_entry.path.as_os_str().is_empty()
4542 && abs_path.file_name() == Some(*DOT_GIT))
4543 {
4544 state.enqueue_scan_dir(abs_path, &fs_entry, scan_queue_tx);
4545 } else {
4546 fs_entry.kind = EntryKind::UnloadedDir;
4547 }
4548 }
4549
4550 state.insert_entry(fs_entry.clone(), self.fs.as_ref(), self.watcher.as_ref());
4551
4552 if path.as_ref() == Path::new("") {
4553 if let Some((ignores, repo)) = new_ancestor_repo.take() {
4554 log::trace!("updating ancestor git repository");
4555 state.snapshot.ignores_by_parent_abs_path.extend(ignores);
4556 if let Some((ancestor_dot_git, work_directory)) = repo {
4557 state.insert_git_repository_for_path(
4558 work_directory,
4559 ancestor_dot_git.as_path().into(),
4560 self.fs.as_ref(),
4561 self.watcher.as_ref(),
4562 );
4563 }
4564 }
4565 }
4566 }
4567 Ok(None) => {
4568 self.remove_repo_path(path, &mut state.snapshot);
4569 }
4570 Err(err) => {
4571 log::error!("error reading file {abs_path:?} on event: {err:#}");
4572 }
4573 }
4574 }
4575
4576 util::extend_sorted(
4577 &mut state.changed_paths,
4578 relative_paths.iter().cloned(),
4579 usize::MAX,
4580 Ord::cmp,
4581 );
4582 }
4583
4584 fn remove_repo_path(&self, path: &Arc<Path>, snapshot: &mut LocalSnapshot) -> Option<()> {
4585 if !path
4586 .components()
4587 .any(|component| component.as_os_str() == *DOT_GIT)
4588 {
4589 if let Some(local_repo) = snapshot.local_repo_for_work_directory_path(path) {
4590 let id = local_repo.work_directory_id;
4591 log::debug!("remove repo path: {:?}", path);
4592 snapshot.git_repositories.remove(&id);
4593 return Some(());
4594 }
4595 }
4596
4597 Some(())
4598 }
4599
4600 async fn update_ignore_statuses(&self, scan_job_tx: Sender<ScanJob>) {
4601 let mut ignores_to_update = Vec::new();
4602 let (ignore_queue_tx, ignore_queue_rx) = channel::unbounded();
4603 let prev_snapshot;
4604 {
4605 let snapshot = &mut self.state.lock().snapshot;
4606 let abs_path = snapshot.abs_path.clone();
4607 snapshot
4608 .ignores_by_parent_abs_path
4609 .retain(|parent_abs_path, (_, needs_update)| {
4610 if let Ok(parent_path) = parent_abs_path.strip_prefix(abs_path.as_path()) {
4611 if *needs_update {
4612 *needs_update = false;
4613 if snapshot.snapshot.entry_for_path(parent_path).is_some() {
4614 ignores_to_update.push(parent_abs_path.clone());
4615 }
4616 }
4617
4618 let ignore_path = parent_path.join(*GITIGNORE);
4619 if snapshot.snapshot.entry_for_path(ignore_path).is_none() {
4620 return false;
4621 }
4622 }
4623 true
4624 });
4625
4626 ignores_to_update.sort_unstable();
4627 let mut ignores_to_update = ignores_to_update.into_iter().peekable();
4628 while let Some(parent_abs_path) = ignores_to_update.next() {
4629 while ignores_to_update
4630 .peek()
4631 .map_or(false, |p| p.starts_with(&parent_abs_path))
4632 {
4633 ignores_to_update.next().unwrap();
4634 }
4635
4636 let ignore_stack = snapshot.ignore_stack_for_abs_path(&parent_abs_path, true);
4637 ignore_queue_tx
4638 .send_blocking(UpdateIgnoreStatusJob {
4639 abs_path: parent_abs_path,
4640 ignore_stack,
4641 ignore_queue: ignore_queue_tx.clone(),
4642 scan_queue: scan_job_tx.clone(),
4643 })
4644 .unwrap();
4645 }
4646
4647 prev_snapshot = snapshot.clone();
4648 }
4649 drop(ignore_queue_tx);
4650
4651 self.executor
4652 .scoped(|scope| {
4653 for _ in 0..self.executor.num_cpus() {
4654 scope.spawn(async {
4655 loop {
4656 select_biased! {
4657 // Process any path refresh requests before moving on to process
4658 // the queue of ignore statuses.
4659 request = self.next_scan_request().fuse() => {
4660 let Ok(request) = request else { break };
4661 if !self.process_scan_request(request, true).await {
4662 return;
4663 }
4664 }
4665
4666 // Recursively process directories whose ignores have changed.
4667 job = ignore_queue_rx.recv().fuse() => {
4668 let Ok(job) = job else { break };
4669 self.update_ignore_status(job, &prev_snapshot).await;
4670 }
4671 }
4672 }
4673 });
4674 }
4675 })
4676 .await;
4677 }
4678
4679 async fn update_ignore_status(&self, job: UpdateIgnoreStatusJob, snapshot: &LocalSnapshot) {
4680 log::trace!("update ignore status {:?}", job.abs_path);
4681
4682 let mut ignore_stack = job.ignore_stack;
4683 if let Some((ignore, _)) = snapshot.ignores_by_parent_abs_path.get(&job.abs_path) {
4684 ignore_stack = ignore_stack.append(job.abs_path.clone(), ignore.clone());
4685 }
4686
4687 let mut entries_by_id_edits = Vec::new();
4688 let mut entries_by_path_edits = Vec::new();
4689 let path = job
4690 .abs_path
4691 .strip_prefix(snapshot.abs_path.as_path())
4692 .unwrap();
4693
4694 for mut entry in snapshot.child_entries(path).cloned() {
4695 let was_ignored = entry.is_ignored;
4696 let abs_path: Arc<Path> = snapshot.abs_path().join(&entry.path).into();
4697 entry.is_ignored = ignore_stack.is_abs_path_ignored(&abs_path, entry.is_dir());
4698
4699 if entry.is_dir() {
4700 let child_ignore_stack = if entry.is_ignored {
4701 IgnoreStack::all()
4702 } else {
4703 ignore_stack.clone()
4704 };
4705
4706 // Scan any directories that were previously ignored and weren't previously scanned.
4707 if was_ignored && !entry.is_ignored && entry.kind.is_unloaded() {
4708 let state = self.state.lock();
4709 if state.should_scan_directory(&entry) {
4710 state.enqueue_scan_dir(abs_path.clone(), &entry, &job.scan_queue);
4711 }
4712 }
4713
4714 job.ignore_queue
4715 .send(UpdateIgnoreStatusJob {
4716 abs_path: abs_path.clone(),
4717 ignore_stack: child_ignore_stack,
4718 ignore_queue: job.ignore_queue.clone(),
4719 scan_queue: job.scan_queue.clone(),
4720 })
4721 .await
4722 .unwrap();
4723 }
4724
4725 if entry.is_ignored != was_ignored {
4726 let mut path_entry = snapshot.entries_by_id.get(&entry.id, &()).unwrap().clone();
4727 path_entry.scan_id = snapshot.scan_id;
4728 path_entry.is_ignored = entry.is_ignored;
4729 entries_by_id_edits.push(Edit::Insert(path_entry));
4730 entries_by_path_edits.push(Edit::Insert(entry));
4731 }
4732 }
4733
4734 let state = &mut self.state.lock();
4735 for edit in &entries_by_path_edits {
4736 if let Edit::Insert(entry) = edit {
4737 if let Err(ix) = state.changed_paths.binary_search(&entry.path) {
4738 state.changed_paths.insert(ix, entry.path.clone());
4739 }
4740 }
4741 }
4742
4743 state
4744 .snapshot
4745 .entries_by_path
4746 .edit(entries_by_path_edits, &());
4747 state.snapshot.entries_by_id.edit(entries_by_id_edits, &());
4748 }
4749
4750 fn update_git_repositories(&self, dot_git_paths: Vec<PathBuf>) {
4751 log::trace!("reloading repositories: {dot_git_paths:?}");
4752 let mut state = self.state.lock();
4753 let scan_id = state.snapshot.scan_id;
4754 for dot_git_dir in dot_git_paths {
4755 let existing_repository_entry =
4756 state
4757 .snapshot
4758 .git_repositories
4759 .iter()
4760 .find_map(|(_, repo)| {
4761 if repo.common_dir_abs_path.as_ref() == &dot_git_dir
4762 || repo.repository_dir_abs_path.as_ref() == &dot_git_dir
4763 {
4764 Some(repo.clone())
4765 } else {
4766 None
4767 }
4768 });
4769
4770 match existing_repository_entry {
4771 None => {
4772 let Ok(relative) = dot_git_dir.strip_prefix(state.snapshot.abs_path()) else {
4773 return;
4774 };
4775 state.insert_git_repository(
4776 relative.into(),
4777 self.fs.as_ref(),
4778 self.watcher.as_ref(),
4779 );
4780 }
4781 Some(local_repository) => {
4782 state.snapshot.git_repositories.update(
4783 &local_repository.work_directory_id,
4784 |entry| {
4785 entry.git_dir_scan_id = scan_id;
4786 },
4787 );
4788 }
4789 };
4790 }
4791
4792 // Remove any git repositories whose .git entry no longer exists.
4793 let snapshot = &mut state.snapshot;
4794 let mut ids_to_preserve = HashSet::default();
4795 for (&work_directory_id, entry) in snapshot.git_repositories.iter() {
4796 let exists_in_snapshot = snapshot
4797 .entry_for_id(work_directory_id)
4798 .map_or(false, |entry| {
4799 snapshot.entry_for_path(entry.path.join(*DOT_GIT)).is_some()
4800 });
4801
4802 if exists_in_snapshot
4803 || matches!(
4804 smol::block_on(self.fs.metadata(&entry.common_dir_abs_path)),
4805 Ok(Some(_))
4806 )
4807 {
4808 ids_to_preserve.insert(work_directory_id);
4809 }
4810 }
4811
4812 snapshot
4813 .git_repositories
4814 .retain(|work_directory_id, _| ids_to_preserve.contains(work_directory_id));
4815 }
4816
4817 async fn progress_timer(&self, running: bool) {
4818 if !running {
4819 return futures::future::pending().await;
4820 }
4821
4822 #[cfg(any(test, feature = "test-support"))]
4823 if self.fs.is_fake() {
4824 return self.executor.simulate_random_delay().await;
4825 }
4826
4827 smol::Timer::after(FS_WATCH_LATENCY).await;
4828 }
4829
4830 fn is_path_private(&self, path: &Path) -> bool {
4831 !self.share_private_files && self.settings.is_path_private(path)
4832 }
4833
4834 async fn next_scan_request(&self) -> Result<ScanRequest> {
4835 let mut request = self.scan_requests_rx.recv().await?;
4836 while let Ok(next_request) = self.scan_requests_rx.try_recv() {
4837 request.relative_paths.extend(next_request.relative_paths);
4838 request.done.extend(next_request.done);
4839 }
4840 Ok(request)
4841 }
4842}
4843
4844async fn discover_ancestor_git_repo(
4845 fs: Arc<dyn Fs>,
4846 root_abs_path: &SanitizedPath,
4847) -> (
4848 HashMap<Arc<Path>, (Arc<Gitignore>, bool)>,
4849 Option<(PathBuf, WorkDirectory)>,
4850) {
4851 let mut ignores = HashMap::default();
4852 for (index, ancestor) in root_abs_path.as_path().ancestors().enumerate() {
4853 if index != 0 {
4854 if Some(ancestor) == fs.home_dir().as_deref() {
4855 // Unless $HOME is itself the worktree root, don't consider it as a
4856 // containing git repository---expensive and likely unwanted.
4857 break;
4858 } else if let Ok(ignore) =
4859 build_gitignore(&ancestor.join(*GITIGNORE), fs.as_ref()).await
4860 {
4861 ignores.insert(ancestor.into(), (ignore.into(), false));
4862 }
4863 }
4864
4865 let ancestor_dot_git = ancestor.join(*DOT_GIT);
4866 log::trace!("considering ancestor: {ancestor_dot_git:?}");
4867 // Check whether the directory or file called `.git` exists (in the
4868 // case of worktrees it's a file.)
4869 if fs
4870 .metadata(&ancestor_dot_git)
4871 .await
4872 .is_ok_and(|metadata| metadata.is_some())
4873 {
4874 if index != 0 {
4875 // We canonicalize, since the FS events use the canonicalized path.
4876 if let Some(ancestor_dot_git) = fs.canonicalize(&ancestor_dot_git).await.log_err() {
4877 let location_in_repo = root_abs_path
4878 .as_path()
4879 .strip_prefix(ancestor)
4880 .unwrap()
4881 .into();
4882 log::info!("inserting parent git repo for this worktree: {location_in_repo:?}");
4883 // We associate the external git repo with our root folder and
4884 // also mark where in the git repo the root folder is located.
4885 return (
4886 ignores,
4887 Some((
4888 ancestor_dot_git,
4889 WorkDirectory::AboveProject {
4890 absolute_path: ancestor.into(),
4891 location_in_repo,
4892 },
4893 )),
4894 );
4895 };
4896 }
4897
4898 // Reached root of git repository.
4899 break;
4900 }
4901 }
4902
4903 (ignores, None)
4904}
4905
4906fn build_diff(
4907 phase: BackgroundScannerPhase,
4908 old_snapshot: &Snapshot,
4909 new_snapshot: &Snapshot,
4910 event_paths: &[Arc<Path>],
4911) -> UpdatedEntriesSet {
4912 use BackgroundScannerPhase::*;
4913 use PathChange::{Added, AddedOrUpdated, Loaded, Removed, Updated};
4914
4915 // Identify which paths have changed. Use the known set of changed
4916 // parent paths to optimize the search.
4917 let mut changes = Vec::new();
4918 let mut old_paths = old_snapshot.entries_by_path.cursor::<PathKey>(&());
4919 let mut new_paths = new_snapshot.entries_by_path.cursor::<PathKey>(&());
4920 let mut last_newly_loaded_dir_path = None;
4921 old_paths.next();
4922 new_paths.next();
4923 for path in event_paths {
4924 let path = PathKey(path.clone());
4925 if old_paths.item().map_or(false, |e| e.path < path.0) {
4926 old_paths.seek_forward(&path, Bias::Left);
4927 }
4928 if new_paths.item().map_or(false, |e| e.path < path.0) {
4929 new_paths.seek_forward(&path, Bias::Left);
4930 }
4931 loop {
4932 match (old_paths.item(), new_paths.item()) {
4933 (Some(old_entry), Some(new_entry)) => {
4934 if old_entry.path > path.0
4935 && new_entry.path > path.0
4936 && !old_entry.path.starts_with(&path.0)
4937 && !new_entry.path.starts_with(&path.0)
4938 {
4939 break;
4940 }
4941
4942 match Ord::cmp(&old_entry.path, &new_entry.path) {
4943 Ordering::Less => {
4944 changes.push((old_entry.path.clone(), old_entry.id, Removed));
4945 old_paths.next();
4946 }
4947 Ordering::Equal => {
4948 if phase == EventsReceivedDuringInitialScan {
4949 if old_entry.id != new_entry.id {
4950 changes.push((old_entry.path.clone(), old_entry.id, Removed));
4951 }
4952 // If the worktree was not fully initialized when this event was generated,
4953 // we can't know whether this entry was added during the scan or whether
4954 // it was merely updated.
4955 changes.push((
4956 new_entry.path.clone(),
4957 new_entry.id,
4958 AddedOrUpdated,
4959 ));
4960 } else if old_entry.id != new_entry.id {
4961 changes.push((old_entry.path.clone(), old_entry.id, Removed));
4962 changes.push((new_entry.path.clone(), new_entry.id, Added));
4963 } else if old_entry != new_entry {
4964 if old_entry.kind.is_unloaded() {
4965 last_newly_loaded_dir_path = Some(&new_entry.path);
4966 changes.push((new_entry.path.clone(), new_entry.id, Loaded));
4967 } else {
4968 changes.push((new_entry.path.clone(), new_entry.id, Updated));
4969 }
4970 }
4971 old_paths.next();
4972 new_paths.next();
4973 }
4974 Ordering::Greater => {
4975 let is_newly_loaded = phase == InitialScan
4976 || last_newly_loaded_dir_path
4977 .as_ref()
4978 .map_or(false, |dir| new_entry.path.starts_with(dir));
4979 changes.push((
4980 new_entry.path.clone(),
4981 new_entry.id,
4982 if is_newly_loaded { Loaded } else { Added },
4983 ));
4984 new_paths.next();
4985 }
4986 }
4987 }
4988 (Some(old_entry), None) => {
4989 changes.push((old_entry.path.clone(), old_entry.id, Removed));
4990 old_paths.next();
4991 }
4992 (None, Some(new_entry)) => {
4993 let is_newly_loaded = phase == InitialScan
4994 || last_newly_loaded_dir_path
4995 .as_ref()
4996 .map_or(false, |dir| new_entry.path.starts_with(dir));
4997 changes.push((
4998 new_entry.path.clone(),
4999 new_entry.id,
5000 if is_newly_loaded { Loaded } else { Added },
5001 ));
5002 new_paths.next();
5003 }
5004 (None, None) => break,
5005 }
5006 }
5007 }
5008
5009 changes.into()
5010}
5011
5012fn swap_to_front(child_paths: &mut Vec<PathBuf>, file: &OsStr) {
5013 let position = child_paths
5014 .iter()
5015 .position(|path| path.file_name().unwrap() == file);
5016 if let Some(position) = position {
5017 let temp = child_paths.remove(position);
5018 child_paths.insert(0, temp);
5019 }
5020}
5021
5022fn char_bag_for_path(root_char_bag: CharBag, path: &Path) -> CharBag {
5023 let mut result = root_char_bag;
5024 result.extend(
5025 path.to_string_lossy()
5026 .chars()
5027 .map(|c| c.to_ascii_lowercase()),
5028 );
5029 result
5030}
5031
5032#[derive(Debug)]
5033struct ScanJob {
5034 abs_path: Arc<Path>,
5035 path: Arc<Path>,
5036 ignore_stack: Arc<IgnoreStack>,
5037 scan_queue: Sender<ScanJob>,
5038 ancestor_inodes: TreeSet<u64>,
5039 is_external: bool,
5040}
5041
5042struct UpdateIgnoreStatusJob {
5043 abs_path: Arc<Path>,
5044 ignore_stack: Arc<IgnoreStack>,
5045 ignore_queue: Sender<UpdateIgnoreStatusJob>,
5046 scan_queue: Sender<ScanJob>,
5047}
5048
5049pub trait WorktreeModelHandle {
5050 #[cfg(any(test, feature = "test-support"))]
5051 fn flush_fs_events<'a>(
5052 &self,
5053 cx: &'a mut gpui::TestAppContext,
5054 ) -> futures::future::LocalBoxFuture<'a, ()>;
5055
5056 #[cfg(any(test, feature = "test-support"))]
5057 fn flush_fs_events_in_root_git_repository<'a>(
5058 &self,
5059 cx: &'a mut gpui::TestAppContext,
5060 ) -> futures::future::LocalBoxFuture<'a, ()>;
5061}
5062
5063impl WorktreeModelHandle for Entity<Worktree> {
5064 // When the worktree's FS event stream sometimes delivers "redundant" events for FS changes that
5065 // occurred before the worktree was constructed. These events can cause the worktree to perform
5066 // extra directory scans, and emit extra scan-state notifications.
5067 //
5068 // This function mutates the worktree's directory and waits for those mutations to be picked up,
5069 // to ensure that all redundant FS events have already been processed.
5070 #[cfg(any(test, feature = "test-support"))]
5071 fn flush_fs_events<'a>(
5072 &self,
5073 cx: &'a mut gpui::TestAppContext,
5074 ) -> futures::future::LocalBoxFuture<'a, ()> {
5075 let file_name = "fs-event-sentinel";
5076
5077 let tree = self.clone();
5078 let (fs, root_path) = self.read_with(cx, |tree, _| {
5079 let tree = tree.as_local().unwrap();
5080 (tree.fs.clone(), tree.abs_path().clone())
5081 });
5082
5083 async move {
5084 fs.create_file(&root_path.join(file_name), Default::default())
5085 .await
5086 .unwrap();
5087
5088 let mut events = cx.events(&tree);
5089 while events.next().await.is_some() {
5090 if tree.read_with(cx, |tree, _| tree.entry_for_path(file_name).is_some()) {
5091 break;
5092 }
5093 }
5094
5095 fs.remove_file(&root_path.join(file_name), Default::default())
5096 .await
5097 .unwrap();
5098 while events.next().await.is_some() {
5099 if tree.read_with(cx, |tree, _| tree.entry_for_path(file_name).is_none()) {
5100 break;
5101 }
5102 }
5103
5104 cx.update(|cx| tree.read(cx).as_local().unwrap().scan_complete())
5105 .await;
5106 }
5107 .boxed_local()
5108 }
5109
5110 // This function is similar to flush_fs_events, except that it waits for events to be flushed in
5111 // the .git folder of the root repository.
5112 // The reason for its existence is that a repository's .git folder might live *outside* of the
5113 // worktree and thus its FS events might go through a different path.
5114 // In order to flush those, we need to create artificial events in the .git folder and wait
5115 // for the repository to be reloaded.
5116 #[cfg(any(test, feature = "test-support"))]
5117 fn flush_fs_events_in_root_git_repository<'a>(
5118 &self,
5119 cx: &'a mut gpui::TestAppContext,
5120 ) -> futures::future::LocalBoxFuture<'a, ()> {
5121 let file_name = "fs-event-sentinel";
5122
5123 let tree = self.clone();
5124 let (fs, root_path, mut git_dir_scan_id) = self.read_with(cx, |tree, _| {
5125 let tree = tree.as_local().unwrap();
5126 let local_repo_entry = tree
5127 .git_repositories
5128 .values()
5129 .min_by_key(|local_repo_entry| local_repo_entry.work_directory.clone())
5130 .unwrap();
5131 (
5132 tree.fs.clone(),
5133 local_repo_entry.common_dir_abs_path.clone(),
5134 local_repo_entry.git_dir_scan_id,
5135 )
5136 });
5137
5138 let scan_id_increased = |tree: &mut Worktree, git_dir_scan_id: &mut usize| {
5139 let tree = tree.as_local().unwrap();
5140 // let repository = tree.repositories.first().unwrap();
5141 let local_repo_entry = tree
5142 .git_repositories
5143 .values()
5144 .min_by_key(|local_repo_entry| local_repo_entry.work_directory.clone())
5145 .unwrap();
5146
5147 if local_repo_entry.git_dir_scan_id > *git_dir_scan_id {
5148 *git_dir_scan_id = local_repo_entry.git_dir_scan_id;
5149 true
5150 } else {
5151 false
5152 }
5153 };
5154
5155 async move {
5156 fs.create_file(&root_path.join(file_name), Default::default())
5157 .await
5158 .unwrap();
5159
5160 let mut events = cx.events(&tree);
5161 while events.next().await.is_some() {
5162 if tree.update(cx, |tree, _| scan_id_increased(tree, &mut git_dir_scan_id)) {
5163 break;
5164 }
5165 }
5166
5167 fs.remove_file(&root_path.join(file_name), Default::default())
5168 .await
5169 .unwrap();
5170
5171 while events.next().await.is_some() {
5172 if tree.update(cx, |tree, _| scan_id_increased(tree, &mut git_dir_scan_id)) {
5173 break;
5174 }
5175 }
5176
5177 cx.update(|cx| tree.read(cx).as_local().unwrap().scan_complete())
5178 .await;
5179 }
5180 .boxed_local()
5181 }
5182}
5183
5184#[derive(Clone, Debug)]
5185struct TraversalProgress<'a> {
5186 max_path: &'a Path,
5187 count: usize,
5188 non_ignored_count: usize,
5189 file_count: usize,
5190 non_ignored_file_count: usize,
5191}
5192
5193impl TraversalProgress<'_> {
5194 fn count(&self, include_files: bool, include_dirs: bool, include_ignored: bool) -> usize {
5195 match (include_files, include_dirs, include_ignored) {
5196 (true, true, true) => self.count,
5197 (true, true, false) => self.non_ignored_count,
5198 (true, false, true) => self.file_count,
5199 (true, false, false) => self.non_ignored_file_count,
5200 (false, true, true) => self.count - self.file_count,
5201 (false, true, false) => self.non_ignored_count - self.non_ignored_file_count,
5202 (false, false, _) => 0,
5203 }
5204 }
5205}
5206
5207impl<'a> sum_tree::Dimension<'a, EntrySummary> for TraversalProgress<'a> {
5208 fn zero(_cx: &()) -> Self {
5209 Default::default()
5210 }
5211
5212 fn add_summary(&mut self, summary: &'a EntrySummary, _: &()) {
5213 self.max_path = summary.max_path.as_ref();
5214 self.count += summary.count;
5215 self.non_ignored_count += summary.non_ignored_count;
5216 self.file_count += summary.file_count;
5217 self.non_ignored_file_count += summary.non_ignored_file_count;
5218 }
5219}
5220
5221impl Default for TraversalProgress<'_> {
5222 fn default() -> Self {
5223 Self {
5224 max_path: Path::new(""),
5225 count: 0,
5226 non_ignored_count: 0,
5227 file_count: 0,
5228 non_ignored_file_count: 0,
5229 }
5230 }
5231}
5232
5233#[derive(Debug)]
5234pub struct Traversal<'a> {
5235 snapshot: &'a Snapshot,
5236 cursor: sum_tree::Cursor<'a, Entry, TraversalProgress<'a>>,
5237 include_ignored: bool,
5238 include_files: bool,
5239 include_dirs: bool,
5240}
5241
5242impl<'a> Traversal<'a> {
5243 fn new(
5244 snapshot: &'a Snapshot,
5245 include_files: bool,
5246 include_dirs: bool,
5247 include_ignored: bool,
5248 start_path: &Path,
5249 ) -> Self {
5250 let mut cursor = snapshot.entries_by_path.cursor(&());
5251 cursor.seek(&TraversalTarget::path(start_path), Bias::Left);
5252 let mut traversal = Self {
5253 snapshot,
5254 cursor,
5255 include_files,
5256 include_dirs,
5257 include_ignored,
5258 };
5259 if traversal.end_offset() == traversal.start_offset() {
5260 traversal.next();
5261 }
5262 traversal
5263 }
5264
5265 pub fn advance(&mut self) -> bool {
5266 self.advance_by(1)
5267 }
5268
5269 pub fn advance_by(&mut self, count: usize) -> bool {
5270 self.cursor.seek_forward(
5271 &TraversalTarget::Count {
5272 count: self.end_offset() + count,
5273 include_dirs: self.include_dirs,
5274 include_files: self.include_files,
5275 include_ignored: self.include_ignored,
5276 },
5277 Bias::Left,
5278 )
5279 }
5280
5281 pub fn advance_to_sibling(&mut self) -> bool {
5282 while let Some(entry) = self.cursor.item() {
5283 self.cursor
5284 .seek_forward(&TraversalTarget::successor(&entry.path), Bias::Left);
5285 if let Some(entry) = self.cursor.item() {
5286 if (self.include_files || !entry.is_file())
5287 && (self.include_dirs || !entry.is_dir())
5288 && (self.include_ignored || !entry.is_ignored || entry.is_always_included)
5289 {
5290 return true;
5291 }
5292 }
5293 }
5294 false
5295 }
5296
5297 pub fn back_to_parent(&mut self) -> bool {
5298 let Some(parent_path) = self.cursor.item().and_then(|entry| entry.path.parent()) else {
5299 return false;
5300 };
5301 self.cursor
5302 .seek(&TraversalTarget::path(parent_path), Bias::Left)
5303 }
5304
5305 pub fn entry(&self) -> Option<&'a Entry> {
5306 self.cursor.item()
5307 }
5308
5309 pub fn snapshot(&self) -> &'a Snapshot {
5310 self.snapshot
5311 }
5312
5313 pub fn start_offset(&self) -> usize {
5314 self.cursor
5315 .start()
5316 .count(self.include_files, self.include_dirs, self.include_ignored)
5317 }
5318
5319 pub fn end_offset(&self) -> usize {
5320 self.cursor
5321 .end()
5322 .count(self.include_files, self.include_dirs, self.include_ignored)
5323 }
5324}
5325
5326impl<'a> Iterator for Traversal<'a> {
5327 type Item = &'a Entry;
5328
5329 fn next(&mut self) -> Option<Self::Item> {
5330 if let Some(item) = self.entry() {
5331 self.advance();
5332 Some(item)
5333 } else {
5334 None
5335 }
5336 }
5337}
5338
5339#[derive(Debug, Clone, Copy)]
5340pub enum PathTarget<'a> {
5341 Path(&'a Path),
5342 Successor(&'a Path),
5343}
5344
5345impl PathTarget<'_> {
5346 fn cmp_path(&self, other: &Path) -> Ordering {
5347 match self {
5348 PathTarget::Path(path) => path.cmp(&other),
5349 PathTarget::Successor(path) => {
5350 if other.starts_with(path) {
5351 Ordering::Greater
5352 } else {
5353 Ordering::Equal
5354 }
5355 }
5356 }
5357 }
5358}
5359
5360impl<'a, S: Summary> SeekTarget<'a, PathSummary<S>, PathProgress<'a>> for PathTarget<'_> {
5361 fn cmp(&self, cursor_location: &PathProgress<'a>, _: &S::Context) -> Ordering {
5362 self.cmp_path(&cursor_location.max_path)
5363 }
5364}
5365
5366impl<'a, S: Summary> SeekTarget<'a, PathSummary<S>, TraversalProgress<'a>> for PathTarget<'_> {
5367 fn cmp(&self, cursor_location: &TraversalProgress<'a>, _: &S::Context) -> Ordering {
5368 self.cmp_path(&cursor_location.max_path)
5369 }
5370}
5371
5372#[derive(Debug)]
5373enum TraversalTarget<'a> {
5374 Path(PathTarget<'a>),
5375 Count {
5376 count: usize,
5377 include_files: bool,
5378 include_ignored: bool,
5379 include_dirs: bool,
5380 },
5381}
5382
5383impl<'a> TraversalTarget<'a> {
5384 fn path(path: &'a Path) -> Self {
5385 Self::Path(PathTarget::Path(path))
5386 }
5387
5388 fn successor(path: &'a Path) -> Self {
5389 Self::Path(PathTarget::Successor(path))
5390 }
5391
5392 fn cmp_progress(&self, progress: &TraversalProgress) -> Ordering {
5393 match self {
5394 TraversalTarget::Path(path) => path.cmp_path(&progress.max_path),
5395 TraversalTarget::Count {
5396 count,
5397 include_files,
5398 include_dirs,
5399 include_ignored,
5400 } => Ord::cmp(
5401 count,
5402 &progress.count(*include_files, *include_dirs, *include_ignored),
5403 ),
5404 }
5405 }
5406}
5407
5408impl<'a> SeekTarget<'a, EntrySummary, TraversalProgress<'a>> for TraversalTarget<'_> {
5409 fn cmp(&self, cursor_location: &TraversalProgress<'a>, _: &()) -> Ordering {
5410 self.cmp_progress(cursor_location)
5411 }
5412}
5413
5414impl<'a> SeekTarget<'a, PathSummary<&'static ()>, TraversalProgress<'a>> for TraversalTarget<'_> {
5415 fn cmp(&self, cursor_location: &TraversalProgress<'a>, _: &()) -> Ordering {
5416 self.cmp_progress(cursor_location)
5417 }
5418}
5419
5420pub struct ChildEntriesOptions {
5421 pub include_files: bool,
5422 pub include_dirs: bool,
5423 pub include_ignored: bool,
5424}
5425
5426pub struct ChildEntriesIter<'a> {
5427 parent_path: &'a Path,
5428 traversal: Traversal<'a>,
5429}
5430
5431impl<'a> Iterator for ChildEntriesIter<'a> {
5432 type Item = &'a Entry;
5433
5434 fn next(&mut self) -> Option<Self::Item> {
5435 if let Some(item) = self.traversal.entry() {
5436 if item.path.starts_with(self.parent_path) {
5437 self.traversal.advance_to_sibling();
5438 return Some(item);
5439 }
5440 }
5441 None
5442 }
5443}
5444
5445impl<'a> From<&'a Entry> for proto::Entry {
5446 fn from(entry: &'a Entry) -> Self {
5447 Self {
5448 id: entry.id.to_proto(),
5449 is_dir: entry.is_dir(),
5450 path: entry.path.as_ref().to_proto(),
5451 inode: entry.inode,
5452 mtime: entry.mtime.map(|time| time.into()),
5453 is_ignored: entry.is_ignored,
5454 is_external: entry.is_external,
5455 is_fifo: entry.is_fifo,
5456 size: Some(entry.size),
5457 canonical_path: entry
5458 .canonical_path
5459 .as_ref()
5460 .map(|path| path.as_ref().to_proto()),
5461 }
5462 }
5463}
5464
5465impl<'a> TryFrom<(&'a CharBag, &PathMatcher, proto::Entry)> for Entry {
5466 type Error = anyhow::Error;
5467
5468 fn try_from(
5469 (root_char_bag, always_included, entry): (&'a CharBag, &PathMatcher, proto::Entry),
5470 ) -> Result<Self> {
5471 let kind = if entry.is_dir {
5472 EntryKind::Dir
5473 } else {
5474 EntryKind::File
5475 };
5476
5477 let path = Arc::<Path>::from_proto(entry.path);
5478 let char_bag = char_bag_for_path(*root_char_bag, &path);
5479 let is_always_included = always_included.is_match(path.as_ref());
5480 Ok(Entry {
5481 id: ProjectEntryId::from_proto(entry.id),
5482 kind,
5483 path,
5484 inode: entry.inode,
5485 mtime: entry.mtime.map(|time| time.into()),
5486 size: entry.size.unwrap_or(0),
5487 canonical_path: entry
5488 .canonical_path
5489 .map(|path_string| Arc::from(PathBuf::from_proto(path_string))),
5490 is_ignored: entry.is_ignored,
5491 is_always_included,
5492 is_external: entry.is_external,
5493 is_private: false,
5494 char_bag,
5495 is_fifo: entry.is_fifo,
5496 })
5497 }
5498}
5499
5500#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
5501pub struct ProjectEntryId(usize);
5502
5503impl ProjectEntryId {
5504 pub const MAX: Self = Self(usize::MAX);
5505 pub const MIN: Self = Self(usize::MIN);
5506
5507 pub fn new(counter: &AtomicUsize) -> Self {
5508 Self(counter.fetch_add(1, SeqCst))
5509 }
5510
5511 pub fn from_proto(id: u64) -> Self {
5512 Self(id as usize)
5513 }
5514
5515 pub fn to_proto(&self) -> u64 {
5516 self.0 as u64
5517 }
5518
5519 pub fn from_usize(id: usize) -> Self {
5520 ProjectEntryId(id)
5521 }
5522
5523 pub fn to_usize(&self) -> usize {
5524 self.0
5525 }
5526}
5527
5528#[cfg(any(test, feature = "test-support"))]
5529impl CreatedEntry {
5530 pub fn to_included(self) -> Option<Entry> {
5531 match self {
5532 CreatedEntry::Included(entry) => Some(entry),
5533 CreatedEntry::Excluded { .. } => None,
5534 }
5535 }
5536}
5537
5538fn parse_gitfile(content: &str) -> anyhow::Result<&Path> {
5539 let path = content
5540 .strip_prefix("gitdir:")
5541 .with_context(|| format!("parsing gitfile content {content:?}"))?;
5542 Ok(Path::new(path.trim()))
5543}
5544
5545fn discover_git_paths(dot_git_abs_path: &Arc<Path>, fs: &dyn Fs) -> (Arc<Path>, Arc<Path>) {
5546 let mut repository_dir_abs_path = dot_git_abs_path.clone();
5547 let mut common_dir_abs_path = dot_git_abs_path.clone();
5548
5549 if let Some(path) = smol::block_on(fs.load(&dot_git_abs_path))
5550 .ok()
5551 .as_ref()
5552 .and_then(|contents| parse_gitfile(contents).log_err())
5553 {
5554 let path = dot_git_abs_path
5555 .parent()
5556 .unwrap_or(Path::new(""))
5557 .join(path);
5558 if let Some(path) = smol::block_on(fs.canonicalize(&path)).log_err() {
5559 repository_dir_abs_path = Path::new(&path).into();
5560 common_dir_abs_path = repository_dir_abs_path.clone();
5561 if let Some(commondir_contents) = smol::block_on(fs.load(&path.join("commondir"))).ok()
5562 {
5563 if let Some(commondir_path) =
5564 smol::block_on(fs.canonicalize(&path.join(commondir_contents.trim()))).log_err()
5565 {
5566 common_dir_abs_path = commondir_path.as_path().into();
5567 }
5568 }
5569 }
5570 };
5571
5572 (repository_dir_abs_path, common_dir_abs_path)
5573}