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