1mod ignore;
2mod lsp_command;
3pub mod search;
4pub mod worktree;
5
6#[cfg(test)]
7mod project_tests;
8
9use anyhow::{anyhow, Context, Result};
10use client::{proto, Client, PeerId, TypedEnvelope, UserStore};
11use clock::ReplicaId;
12use collections::{hash_map, BTreeMap, HashMap, HashSet};
13use futures::{future::Shared, AsyncWriteExt, Future, FutureExt, StreamExt, TryFutureExt};
14
15use gpui::{
16 AnyModelHandle, AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle,
17 MutableAppContext, Task, UpgradeModelHandle, WeakModelHandle,
18};
19use language::{
20 point_to_lsp,
21 proto::{
22 deserialize_anchor, deserialize_line_ending, deserialize_version, serialize_anchor,
23 serialize_version,
24 },
25 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CachedLspAdapter, CharKind, CodeAction,
26 CodeLabel, Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Event as BufferEvent,
27 File as _, Language, LanguageRegistry, LanguageServerName, LocalFile, OffsetRangeExt,
28 Operation, Patch, PointUtf16, TextBufferSnapshot, ToOffset, ToPointUtf16, Transaction,
29};
30use lsp::{
31 DiagnosticSeverity, DiagnosticTag, DocumentHighlightKind, LanguageServer, LanguageString,
32 MarkedString,
33};
34use lsp_command::*;
35use parking_lot::Mutex;
36use postage::watch;
37use rand::prelude::*;
38use search::SearchQuery;
39use serde::Serialize;
40use settings::{FormatOnSave, Formatter, Settings};
41use sha2::{Digest, Sha256};
42use similar::{ChangeTag, TextDiff};
43use std::{
44 cell::RefCell,
45 cmp::{self, Ordering},
46 convert::TryInto,
47 ffi::OsString,
48 hash::Hash,
49 mem,
50 num::NonZeroU32,
51 ops::Range,
52 os::unix::{ffi::OsStrExt, prelude::OsStringExt},
53 path::{Component, Path, PathBuf},
54 rc::Rc,
55 str,
56 sync::{
57 atomic::{AtomicUsize, Ordering::SeqCst},
58 Arc,
59 },
60 time::Instant,
61};
62use thiserror::Error;
63use util::{defer, post_inc, ResultExt, TryFutureExt as _};
64
65pub use db::Db;
66pub use fs::*;
67pub use worktree::*;
68
69pub trait Item: Entity {
70 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
71}
72
73pub struct ProjectStore {
74 projects: Vec<WeakModelHandle<Project>>,
75}
76
77// Language server state is stored across 3 collections:
78// language_servers =>
79// a mapping from unique server id to LanguageServerState which can either be a task for a
80// server in the process of starting, or a running server with adapter and language server arcs
81// language_server_ids => a mapping from worktreeId and server name to the unique server id
82// language_server_statuses => a mapping from unique server id to the current server status
83//
84// Multiple worktrees can map to the same language server for example when you jump to the definition
85// of a file in the standard library. So language_server_ids is used to look up which server is active
86// for a given worktree and language server name
87//
88// When starting a language server, first the id map is checked to make sure a server isn't already available
89// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
90// the Starting variant of LanguageServerState is stored in the language_servers map.
91pub struct Project {
92 worktrees: Vec<WorktreeHandle>,
93 active_entry: Option<ProjectEntryId>,
94 languages: Arc<LanguageRegistry>,
95 language_servers: HashMap<usize, LanguageServerState>,
96 language_server_ids: HashMap<(WorktreeId, LanguageServerName), usize>,
97 language_server_statuses: BTreeMap<usize, LanguageServerStatus>,
98 language_server_settings: Arc<Mutex<serde_json::Value>>,
99 last_workspace_edits_by_language_server: HashMap<usize, ProjectTransaction>,
100 next_language_server_id: usize,
101 client: Arc<client::Client>,
102 next_entry_id: Arc<AtomicUsize>,
103 next_diagnostic_group_id: usize,
104 user_store: ModelHandle<UserStore>,
105 project_store: ModelHandle<ProjectStore>,
106 fs: Arc<dyn Fs>,
107 client_state: Option<ProjectClientState>,
108 collaborators: HashMap<PeerId, Collaborator>,
109 client_subscriptions: Vec<client::Subscription>,
110 _subscriptions: Vec<gpui::Subscription>,
111 opened_buffer: (watch::Sender<()>, watch::Receiver<()>),
112 shared_buffers: HashMap<PeerId, HashSet<u64>>,
113 #[allow(clippy::type_complexity)]
114 loading_buffers: HashMap<
115 ProjectPath,
116 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
117 >,
118 #[allow(clippy::type_complexity)]
119 loading_local_worktrees:
120 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
121 opened_buffers: HashMap<u64, OpenBuffer>,
122 incomplete_buffers: HashMap<u64, ModelHandle<Buffer>>,
123 buffer_snapshots: HashMap<u64, Vec<(i32, TextBufferSnapshot)>>,
124 buffers_being_formatted: HashSet<usize>,
125 nonce: u128,
126 _maintain_buffer_languages: Task<()>,
127}
128
129#[derive(Error, Debug)]
130pub enum JoinProjectError {
131 #[error("host declined join request")]
132 HostDeclined,
133 #[error("host closed the project")]
134 HostClosedProject,
135 #[error("host went offline")]
136 HostWentOffline,
137 #[error("{0}")]
138 Other(#[from] anyhow::Error),
139}
140
141enum OpenBuffer {
142 Strong(ModelHandle<Buffer>),
143 Weak(WeakModelHandle<Buffer>),
144 Operations(Vec<Operation>),
145}
146
147enum WorktreeHandle {
148 Strong(ModelHandle<Worktree>),
149 Weak(WeakModelHandle<Worktree>),
150}
151
152enum ProjectClientState {
153 Local {
154 remote_id: u64,
155 _detect_unshare: Task<Option<()>>,
156 },
157 Remote {
158 sharing_has_stopped: bool,
159 remote_id: u64,
160 replica_id: ReplicaId,
161 _detect_unshare: Task<Option<()>>,
162 },
163}
164
165#[derive(Clone, Debug)]
166pub struct Collaborator {
167 pub peer_id: PeerId,
168 pub replica_id: ReplicaId,
169}
170
171#[derive(Clone, Debug, PartialEq, Eq)]
172pub enum Event {
173 ActiveEntryChanged(Option<ProjectEntryId>),
174 WorktreeAdded,
175 WorktreeRemoved(WorktreeId),
176 DiskBasedDiagnosticsStarted {
177 language_server_id: usize,
178 },
179 DiskBasedDiagnosticsFinished {
180 language_server_id: usize,
181 },
182 DiagnosticsUpdated {
183 path: ProjectPath,
184 language_server_id: usize,
185 },
186 RemoteIdChanged(Option<u64>),
187 DisconnectedFromHost,
188 CollaboratorLeft(PeerId),
189}
190
191pub enum LanguageServerState {
192 Starting(Task<Option<Arc<LanguageServer>>>),
193 Running {
194 language: Arc<Language>,
195 adapter: Arc<CachedLspAdapter>,
196 server: Arc<LanguageServer>,
197 },
198}
199
200#[derive(Serialize)]
201pub struct LanguageServerStatus {
202 pub name: String,
203 pub pending_work: BTreeMap<String, LanguageServerProgress>,
204 pub has_pending_diagnostic_updates: bool,
205 progress_tokens: HashSet<String>,
206}
207
208#[derive(Clone, Debug, Serialize)]
209pub struct LanguageServerProgress {
210 pub message: Option<String>,
211 pub percentage: Option<usize>,
212 #[serde(skip_serializing)]
213 pub last_update_at: Instant,
214}
215
216#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
217pub struct ProjectPath {
218 pub worktree_id: WorktreeId,
219 pub path: Arc<Path>,
220}
221
222#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
223pub struct DiagnosticSummary {
224 pub language_server_id: usize,
225 pub error_count: usize,
226 pub warning_count: usize,
227}
228
229#[derive(Debug, Clone)]
230pub struct Location {
231 pub buffer: ModelHandle<Buffer>,
232 pub range: Range<language::Anchor>,
233}
234
235#[derive(Debug, Clone)]
236pub struct LocationLink {
237 pub origin: Option<Location>,
238 pub target: Location,
239}
240
241#[derive(Debug)]
242pub struct DocumentHighlight {
243 pub range: Range<language::Anchor>,
244 pub kind: DocumentHighlightKind,
245}
246
247#[derive(Clone, Debug)]
248pub struct Symbol {
249 pub language_server_name: LanguageServerName,
250 pub source_worktree_id: WorktreeId,
251 pub path: ProjectPath,
252 pub label: CodeLabel,
253 pub name: String,
254 pub kind: lsp::SymbolKind,
255 pub range: Range<PointUtf16>,
256 pub signature: [u8; 32],
257}
258
259#[derive(Clone, Debug, PartialEq)]
260pub struct HoverBlock {
261 pub text: String,
262 pub language: Option<String>,
263}
264
265impl HoverBlock {
266 fn try_new(marked_string: MarkedString) -> Option<Self> {
267 let result = match marked_string {
268 MarkedString::LanguageString(LanguageString { language, value }) => HoverBlock {
269 text: value,
270 language: Some(language),
271 },
272 MarkedString::String(text) => HoverBlock {
273 text,
274 language: None,
275 },
276 };
277 if result.text.is_empty() {
278 None
279 } else {
280 Some(result)
281 }
282 }
283}
284
285#[derive(Debug)]
286pub struct Hover {
287 pub contents: Vec<HoverBlock>,
288 pub range: Option<Range<language::Anchor>>,
289}
290
291#[derive(Default)]
292pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
293
294impl DiagnosticSummary {
295 fn new<'a, T: 'a>(
296 language_server_id: usize,
297 diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>,
298 ) -> Self {
299 let mut this = Self {
300 language_server_id,
301 error_count: 0,
302 warning_count: 0,
303 };
304
305 for entry in diagnostics {
306 if entry.diagnostic.is_primary {
307 match entry.diagnostic.severity {
308 DiagnosticSeverity::ERROR => this.error_count += 1,
309 DiagnosticSeverity::WARNING => this.warning_count += 1,
310 _ => {}
311 }
312 }
313 }
314
315 this
316 }
317
318 pub fn is_empty(&self) -> bool {
319 self.error_count == 0 && self.warning_count == 0
320 }
321
322 pub fn to_proto(&self, path: &Path) -> proto::DiagnosticSummary {
323 proto::DiagnosticSummary {
324 path: path.to_string_lossy().to_string(),
325 language_server_id: self.language_server_id as u64,
326 error_count: self.error_count as u32,
327 warning_count: self.warning_count as u32,
328 }
329 }
330}
331
332#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
333pub struct ProjectEntryId(usize);
334
335impl ProjectEntryId {
336 pub const MAX: Self = Self(usize::MAX);
337
338 pub fn new(counter: &AtomicUsize) -> Self {
339 Self(counter.fetch_add(1, SeqCst))
340 }
341
342 pub fn from_proto(id: u64) -> Self {
343 Self(id as usize)
344 }
345
346 pub fn to_proto(&self) -> u64 {
347 self.0 as u64
348 }
349
350 pub fn to_usize(&self) -> usize {
351 self.0
352 }
353}
354
355#[derive(Debug, Clone, Copy, PartialEq, Eq)]
356pub enum FormatTrigger {
357 Save,
358 Manual,
359}
360
361impl FormatTrigger {
362 fn from_proto(value: i32) -> FormatTrigger {
363 match value {
364 0 => FormatTrigger::Save,
365 1 => FormatTrigger::Manual,
366 _ => FormatTrigger::Save,
367 }
368 }
369}
370
371impl Project {
372 pub fn init(client: &Arc<Client>) {
373 client.add_model_message_handler(Self::handle_add_collaborator);
374 client.add_model_message_handler(Self::handle_buffer_reloaded);
375 client.add_model_message_handler(Self::handle_buffer_saved);
376 client.add_model_message_handler(Self::handle_start_language_server);
377 client.add_model_message_handler(Self::handle_update_language_server);
378 client.add_model_message_handler(Self::handle_remove_collaborator);
379 client.add_model_message_handler(Self::handle_update_project);
380 client.add_model_message_handler(Self::handle_unshare_project);
381 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
382 client.add_model_message_handler(Self::handle_update_buffer_file);
383 client.add_model_message_handler(Self::handle_update_buffer);
384 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
385 client.add_model_message_handler(Self::handle_update_worktree);
386 client.add_model_request_handler(Self::handle_create_project_entry);
387 client.add_model_request_handler(Self::handle_rename_project_entry);
388 client.add_model_request_handler(Self::handle_copy_project_entry);
389 client.add_model_request_handler(Self::handle_delete_project_entry);
390 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
391 client.add_model_request_handler(Self::handle_apply_code_action);
392 client.add_model_request_handler(Self::handle_reload_buffers);
393 client.add_model_request_handler(Self::handle_format_buffers);
394 client.add_model_request_handler(Self::handle_get_code_actions);
395 client.add_model_request_handler(Self::handle_get_completions);
396 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
397 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
398 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
399 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
400 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
401 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
402 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
403 client.add_model_request_handler(Self::handle_search_project);
404 client.add_model_request_handler(Self::handle_get_project_symbols);
405 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
406 client.add_model_request_handler(Self::handle_open_buffer_by_id);
407 client.add_model_request_handler(Self::handle_open_buffer_by_path);
408 client.add_model_request_handler(Self::handle_save_buffer);
409 client.add_model_message_handler(Self::handle_update_diff_base);
410 }
411
412 pub fn local(
413 client: Arc<Client>,
414 user_store: ModelHandle<UserStore>,
415 project_store: ModelHandle<ProjectStore>,
416 languages: Arc<LanguageRegistry>,
417 fs: Arc<dyn Fs>,
418 cx: &mut MutableAppContext,
419 ) -> ModelHandle<Self> {
420 cx.add_model(|cx: &mut ModelContext<Self>| {
421 let handle = cx.weak_handle();
422 project_store.update(cx, |store, cx| store.add_project(handle, cx));
423
424 Self {
425 worktrees: Default::default(),
426 collaborators: Default::default(),
427 opened_buffers: Default::default(),
428 shared_buffers: Default::default(),
429 incomplete_buffers: Default::default(),
430 loading_buffers: Default::default(),
431 loading_local_worktrees: Default::default(),
432 buffer_snapshots: Default::default(),
433 client_state: None,
434 opened_buffer: watch::channel(),
435 client_subscriptions: Vec::new(),
436 _subscriptions: vec![cx.observe_global::<Settings, _>(Self::on_settings_changed)],
437 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
438 active_entry: None,
439 languages,
440 client,
441 user_store,
442 project_store,
443 fs,
444 next_entry_id: Default::default(),
445 next_diagnostic_group_id: Default::default(),
446 language_servers: Default::default(),
447 language_server_ids: Default::default(),
448 language_server_statuses: Default::default(),
449 last_workspace_edits_by_language_server: Default::default(),
450 language_server_settings: Default::default(),
451 buffers_being_formatted: Default::default(),
452 next_language_server_id: 0,
453 nonce: StdRng::from_entropy().gen(),
454 }
455 })
456 }
457
458 pub async fn remote(
459 remote_id: u64,
460 client: Arc<Client>,
461 user_store: ModelHandle<UserStore>,
462 project_store: ModelHandle<ProjectStore>,
463 languages: Arc<LanguageRegistry>,
464 fs: Arc<dyn Fs>,
465 mut cx: AsyncAppContext,
466 ) -> Result<ModelHandle<Self>, JoinProjectError> {
467 client.authenticate_and_connect(true, &cx).await?;
468
469 let response = client
470 .request(proto::JoinProject {
471 project_id: remote_id,
472 })
473 .await?;
474
475 let replica_id = response.replica_id as ReplicaId;
476
477 let mut worktrees = Vec::new();
478 for worktree in response.worktrees {
479 let worktree = cx
480 .update(|cx| Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx));
481 worktrees.push(worktree);
482 }
483
484 let this = cx.add_model(|cx: &mut ModelContext<Self>| {
485 let handle = cx.weak_handle();
486 project_store.update(cx, |store, cx| store.add_project(handle, cx));
487
488 let mut this = Self {
489 worktrees: Vec::new(),
490 loading_buffers: Default::default(),
491 opened_buffer: watch::channel(),
492 shared_buffers: Default::default(),
493 incomplete_buffers: Default::default(),
494 loading_local_worktrees: Default::default(),
495 active_entry: None,
496 collaborators: Default::default(),
497 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
498 languages,
499 user_store: user_store.clone(),
500 project_store,
501 fs,
502 next_entry_id: Default::default(),
503 next_diagnostic_group_id: Default::default(),
504 client_subscriptions: vec![client.add_model_for_remote_entity(remote_id, cx)],
505 _subscriptions: Default::default(),
506 client: client.clone(),
507 client_state: Some(ProjectClientState::Remote {
508 sharing_has_stopped: false,
509 remote_id,
510 replica_id,
511 _detect_unshare: cx.spawn_weak(move |this, mut cx| {
512 async move {
513 let mut status = client.status();
514 let is_connected =
515 status.next().await.map_or(false, |s| s.is_connected());
516 // Even if we're initially connected, any future change of the status means we momentarily disconnected.
517 if !is_connected || status.next().await.is_some() {
518 if let Some(this) = this.upgrade(&cx) {
519 this.update(&mut cx, |this, cx| this.disconnected_from_host(cx))
520 }
521 }
522 Ok(())
523 }
524 .log_err()
525 }),
526 }),
527 language_servers: Default::default(),
528 language_server_ids: Default::default(),
529 language_server_settings: Default::default(),
530 language_server_statuses: response
531 .language_servers
532 .into_iter()
533 .map(|server| {
534 (
535 server.id as usize,
536 LanguageServerStatus {
537 name: server.name,
538 pending_work: Default::default(),
539 has_pending_diagnostic_updates: false,
540 progress_tokens: Default::default(),
541 },
542 )
543 })
544 .collect(),
545 last_workspace_edits_by_language_server: Default::default(),
546 next_language_server_id: 0,
547 opened_buffers: Default::default(),
548 buffers_being_formatted: Default::default(),
549 buffer_snapshots: Default::default(),
550 nonce: StdRng::from_entropy().gen(),
551 };
552 for worktree in worktrees {
553 this.add_worktree(&worktree, cx);
554 }
555 this
556 });
557
558 let user_ids = response
559 .collaborators
560 .iter()
561 .map(|peer| peer.user_id)
562 .collect();
563 user_store
564 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
565 .await?;
566 let mut collaborators = HashMap::default();
567 for message in response.collaborators {
568 let collaborator = Collaborator::from_proto(message);
569 collaborators.insert(collaborator.peer_id, collaborator);
570 }
571
572 this.update(&mut cx, |this, _| {
573 this.collaborators = collaborators;
574 });
575
576 Ok(this)
577 }
578
579 #[cfg(any(test, feature = "test-support"))]
580 pub async fn test(
581 fs: Arc<dyn Fs>,
582 root_paths: impl IntoIterator<Item = &Path>,
583 cx: &mut gpui::TestAppContext,
584 ) -> ModelHandle<Project> {
585 if !cx.read(|cx| cx.has_global::<Settings>()) {
586 cx.update(|cx| {
587 cx.set_global(Settings::test(cx));
588 cx.set_global(HomeDir(Path::new("/tmp/").to_path_buf()))
589 });
590 }
591
592 let languages = Arc::new(LanguageRegistry::test());
593 let http_client = client::test::FakeHttpClient::with_404_response();
594 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
595 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
596 let project_store = cx.add_model(|_| ProjectStore::new());
597 let project =
598 cx.update(|cx| Project::local(client, user_store, project_store, languages, fs, cx));
599 for path in root_paths {
600 let (tree, _) = project
601 .update(cx, |project, cx| {
602 project.find_or_create_local_worktree(path, true, cx)
603 })
604 .await
605 .unwrap();
606 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
607 .await;
608 }
609 project
610 }
611
612 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
613 let settings = cx.global::<Settings>();
614
615 let mut language_servers_to_start = Vec::new();
616 for buffer in self.opened_buffers.values() {
617 if let Some(buffer) = buffer.upgrade(cx) {
618 let buffer = buffer.read(cx);
619 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
620 {
621 if settings.enable_language_server(Some(&language.name())) {
622 let worktree = file.worktree.read(cx);
623 language_servers_to_start.push((
624 worktree.id(),
625 worktree.as_local().unwrap().abs_path().clone(),
626 language.clone(),
627 ));
628 }
629 }
630 }
631 }
632
633 let mut language_servers_to_stop = Vec::new();
634 for language in self.languages.to_vec() {
635 if let Some(lsp_adapter) = language.lsp_adapter() {
636 if !settings.enable_language_server(Some(&language.name())) {
637 let lsp_name = &lsp_adapter.name;
638 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
639 if lsp_name == started_lsp_name {
640 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
641 }
642 }
643 }
644 }
645 }
646
647 // Stop all newly-disabled language servers.
648 for (worktree_id, adapter_name) in language_servers_to_stop {
649 self.stop_language_server(worktree_id, adapter_name, cx)
650 .detach();
651 }
652
653 // Start all the newly-enabled language servers.
654 for (worktree_id, worktree_path, language) in language_servers_to_start {
655 self.start_language_server(worktree_id, worktree_path, language, cx);
656 }
657
658 cx.notify();
659 }
660
661 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
662 self.opened_buffers
663 .get(&remote_id)
664 .and_then(|buffer| buffer.upgrade(cx))
665 }
666
667 pub fn languages(&self) -> &Arc<LanguageRegistry> {
668 &self.languages
669 }
670
671 pub fn client(&self) -> Arc<Client> {
672 self.client.clone()
673 }
674
675 pub fn user_store(&self) -> ModelHandle<UserStore> {
676 self.user_store.clone()
677 }
678
679 pub fn project_store(&self) -> ModelHandle<ProjectStore> {
680 self.project_store.clone()
681 }
682
683 #[cfg(any(test, feature = "test-support"))]
684 pub fn check_invariants(&self, cx: &AppContext) {
685 if self.is_local() {
686 let mut worktree_root_paths = HashMap::default();
687 for worktree in self.worktrees(cx) {
688 let worktree = worktree.read(cx);
689 let abs_path = worktree.as_local().unwrap().abs_path().clone();
690 let prev_worktree_id = worktree_root_paths.insert(abs_path.clone(), worktree.id());
691 assert_eq!(
692 prev_worktree_id,
693 None,
694 "abs path {:?} for worktree {:?} is not unique ({:?} was already registered with the same path)",
695 abs_path,
696 worktree.id(),
697 prev_worktree_id
698 )
699 }
700 } else {
701 let replica_id = self.replica_id();
702 for buffer in self.opened_buffers.values() {
703 if let Some(buffer) = buffer.upgrade(cx) {
704 let buffer = buffer.read(cx);
705 assert_eq!(
706 buffer.deferred_ops_len(),
707 0,
708 "replica {}, buffer {} has deferred operations",
709 replica_id,
710 buffer.remote_id()
711 );
712 }
713 }
714 }
715 }
716
717 #[cfg(any(test, feature = "test-support"))]
718 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
719 let path = path.into();
720 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
721 self.opened_buffers.iter().any(|(_, buffer)| {
722 if let Some(buffer) = buffer.upgrade(cx) {
723 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
724 if file.worktree == worktree && file.path() == &path.path {
725 return true;
726 }
727 }
728 }
729 false
730 })
731 } else {
732 false
733 }
734 }
735
736 pub fn fs(&self) -> &Arc<dyn Fs> {
737 &self.fs
738 }
739
740 pub fn remote_id(&self) -> Option<u64> {
741 match self.client_state.as_ref()? {
742 ProjectClientState::Local { remote_id, .. }
743 | ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
744 }
745 }
746
747 pub fn replica_id(&self) -> ReplicaId {
748 match &self.client_state {
749 Some(ProjectClientState::Remote { replica_id, .. }) => *replica_id,
750 _ => 0,
751 }
752 }
753
754 fn metadata_changed(&mut self, cx: &mut ModelContext<Self>) {
755 if let Some(ProjectClientState::Local { remote_id, .. }) = &self.client_state {
756 let project_id = *remote_id;
757 // Broadcast worktrees only if the project is online.
758 let worktrees = self
759 .worktrees
760 .iter()
761 .filter_map(|worktree| {
762 worktree
763 .upgrade(cx)
764 .map(|worktree| worktree.read(cx).as_local().unwrap().metadata_proto())
765 })
766 .collect();
767 self.client
768 .send(proto::UpdateProject {
769 project_id,
770 worktrees,
771 })
772 .log_err();
773
774 let worktrees = self.visible_worktrees(cx).collect::<Vec<_>>();
775 let scans_complete = futures::future::join_all(
776 worktrees
777 .iter()
778 .filter_map(|worktree| Some(worktree.read(cx).as_local()?.scan_complete())),
779 );
780
781 let worktrees = worktrees.into_iter().map(|handle| handle.downgrade());
782
783 cx.spawn_weak(move |_, cx| async move {
784 scans_complete.await;
785 cx.read(|cx| {
786 for worktree in worktrees {
787 if let Some(worktree) = worktree
788 .upgrade(cx)
789 .and_then(|worktree| worktree.read(cx).as_local())
790 {
791 worktree.send_extension_counts(project_id);
792 }
793 }
794 })
795 })
796 .detach();
797 }
798
799 self.project_store.update(cx, |_, cx| cx.notify());
800 cx.notify();
801 }
802
803 pub fn collaborators(&self) -> &HashMap<PeerId, Collaborator> {
804 &self.collaborators
805 }
806
807 pub fn worktrees<'a>(
808 &'a self,
809 cx: &'a AppContext,
810 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
811 self.worktrees
812 .iter()
813 .filter_map(move |worktree| worktree.upgrade(cx))
814 }
815
816 pub fn visible_worktrees<'a>(
817 &'a self,
818 cx: &'a AppContext,
819 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
820 self.worktrees.iter().filter_map(|worktree| {
821 worktree.upgrade(cx).and_then(|worktree| {
822 if worktree.read(cx).is_visible() {
823 Some(worktree)
824 } else {
825 None
826 }
827 })
828 })
829 }
830
831 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
832 self.visible_worktrees(cx)
833 .map(|tree| tree.read(cx).root_name())
834 }
835
836 pub fn worktree_for_id(
837 &self,
838 id: WorktreeId,
839 cx: &AppContext,
840 ) -> Option<ModelHandle<Worktree>> {
841 self.worktrees(cx)
842 .find(|worktree| worktree.read(cx).id() == id)
843 }
844
845 pub fn worktree_for_entry(
846 &self,
847 entry_id: ProjectEntryId,
848 cx: &AppContext,
849 ) -> Option<ModelHandle<Worktree>> {
850 self.worktrees(cx)
851 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
852 }
853
854 pub fn worktree_id_for_entry(
855 &self,
856 entry_id: ProjectEntryId,
857 cx: &AppContext,
858 ) -> Option<WorktreeId> {
859 self.worktree_for_entry(entry_id, cx)
860 .map(|worktree| worktree.read(cx).id())
861 }
862
863 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
864 paths.iter().all(|path| self.contains_path(path, cx))
865 }
866
867 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
868 for worktree in self.worktrees(cx) {
869 let worktree = worktree.read(cx).as_local();
870 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
871 return true;
872 }
873 }
874 false
875 }
876
877 pub fn create_entry(
878 &mut self,
879 project_path: impl Into<ProjectPath>,
880 is_directory: bool,
881 cx: &mut ModelContext<Self>,
882 ) -> Option<Task<Result<Entry>>> {
883 let project_path = project_path.into();
884 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
885 if self.is_local() {
886 Some(worktree.update(cx, |worktree, cx| {
887 worktree
888 .as_local_mut()
889 .unwrap()
890 .create_entry(project_path.path, is_directory, cx)
891 }))
892 } else {
893 let client = self.client.clone();
894 let project_id = self.remote_id().unwrap();
895 Some(cx.spawn_weak(|_, mut cx| async move {
896 let response = client
897 .request(proto::CreateProjectEntry {
898 worktree_id: project_path.worktree_id.to_proto(),
899 project_id,
900 path: project_path.path.as_os_str().as_bytes().to_vec(),
901 is_directory,
902 })
903 .await?;
904 let entry = response
905 .entry
906 .ok_or_else(|| anyhow!("missing entry in response"))?;
907 worktree
908 .update(&mut cx, |worktree, cx| {
909 worktree.as_remote_mut().unwrap().insert_entry(
910 entry,
911 response.worktree_scan_id as usize,
912 cx,
913 )
914 })
915 .await
916 }))
917 }
918 }
919
920 pub fn copy_entry(
921 &mut self,
922 entry_id: ProjectEntryId,
923 new_path: impl Into<Arc<Path>>,
924 cx: &mut ModelContext<Self>,
925 ) -> Option<Task<Result<Entry>>> {
926 let worktree = self.worktree_for_entry(entry_id, cx)?;
927 let new_path = new_path.into();
928 if self.is_local() {
929 worktree.update(cx, |worktree, cx| {
930 worktree
931 .as_local_mut()
932 .unwrap()
933 .copy_entry(entry_id, new_path, cx)
934 })
935 } else {
936 let client = self.client.clone();
937 let project_id = self.remote_id().unwrap();
938
939 Some(cx.spawn_weak(|_, mut cx| async move {
940 let response = client
941 .request(proto::CopyProjectEntry {
942 project_id,
943 entry_id: entry_id.to_proto(),
944 new_path: new_path.as_os_str().as_bytes().to_vec(),
945 })
946 .await?;
947 let entry = response
948 .entry
949 .ok_or_else(|| anyhow!("missing entry in response"))?;
950 worktree
951 .update(&mut cx, |worktree, cx| {
952 worktree.as_remote_mut().unwrap().insert_entry(
953 entry,
954 response.worktree_scan_id as usize,
955 cx,
956 )
957 })
958 .await
959 }))
960 }
961 }
962
963 pub fn rename_entry(
964 &mut self,
965 entry_id: ProjectEntryId,
966 new_path: impl Into<Arc<Path>>,
967 cx: &mut ModelContext<Self>,
968 ) -> Option<Task<Result<Entry>>> {
969 let worktree = self.worktree_for_entry(entry_id, cx)?;
970 let new_path = new_path.into();
971 if self.is_local() {
972 worktree.update(cx, |worktree, cx| {
973 worktree
974 .as_local_mut()
975 .unwrap()
976 .rename_entry(entry_id, new_path, cx)
977 })
978 } else {
979 let client = self.client.clone();
980 let project_id = self.remote_id().unwrap();
981
982 Some(cx.spawn_weak(|_, mut cx| async move {
983 let response = client
984 .request(proto::RenameProjectEntry {
985 project_id,
986 entry_id: entry_id.to_proto(),
987 new_path: new_path.as_os_str().as_bytes().to_vec(),
988 })
989 .await?;
990 let entry = response
991 .entry
992 .ok_or_else(|| anyhow!("missing entry in response"))?;
993 worktree
994 .update(&mut cx, |worktree, cx| {
995 worktree.as_remote_mut().unwrap().insert_entry(
996 entry,
997 response.worktree_scan_id as usize,
998 cx,
999 )
1000 })
1001 .await
1002 }))
1003 }
1004 }
1005
1006 pub fn delete_entry(
1007 &mut self,
1008 entry_id: ProjectEntryId,
1009 cx: &mut ModelContext<Self>,
1010 ) -> Option<Task<Result<()>>> {
1011 let worktree = self.worktree_for_entry(entry_id, cx)?;
1012 if self.is_local() {
1013 worktree.update(cx, |worktree, cx| {
1014 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
1015 })
1016 } else {
1017 let client = self.client.clone();
1018 let project_id = self.remote_id().unwrap();
1019 Some(cx.spawn_weak(|_, mut cx| async move {
1020 let response = client
1021 .request(proto::DeleteProjectEntry {
1022 project_id,
1023 entry_id: entry_id.to_proto(),
1024 })
1025 .await?;
1026 worktree
1027 .update(&mut cx, move |worktree, cx| {
1028 worktree.as_remote_mut().unwrap().delete_entry(
1029 entry_id,
1030 response.worktree_scan_id as usize,
1031 cx,
1032 )
1033 })
1034 .await
1035 }))
1036 }
1037 }
1038
1039 pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
1040 if self.client_state.is_some() {
1041 return Task::ready(Err(anyhow!("project was already shared")));
1042 }
1043
1044 let mut worktree_share_tasks = Vec::new();
1045
1046 for open_buffer in self.opened_buffers.values_mut() {
1047 match open_buffer {
1048 OpenBuffer::Strong(_) => {}
1049 OpenBuffer::Weak(buffer) => {
1050 if let Some(buffer) = buffer.upgrade(cx) {
1051 *open_buffer = OpenBuffer::Strong(buffer);
1052 }
1053 }
1054 OpenBuffer::Operations(_) => unreachable!(),
1055 }
1056 }
1057
1058 for worktree_handle in self.worktrees.iter_mut() {
1059 match worktree_handle {
1060 WorktreeHandle::Strong(_) => {}
1061 WorktreeHandle::Weak(worktree) => {
1062 if let Some(worktree) = worktree.upgrade(cx) {
1063 *worktree_handle = WorktreeHandle::Strong(worktree);
1064 }
1065 }
1066 }
1067 }
1068
1069 for (server_id, status) in &self.language_server_statuses {
1070 self.client
1071 .send(proto::StartLanguageServer {
1072 project_id,
1073 server: Some(proto::LanguageServer {
1074 id: *server_id as u64,
1075 name: status.name.clone(),
1076 }),
1077 })
1078 .log_err();
1079 }
1080
1081 for worktree in self.worktrees(cx).collect::<Vec<_>>() {
1082 worktree.update(cx, |worktree, cx| {
1083 let worktree = worktree.as_local_mut().unwrap();
1084 worktree_share_tasks.push(worktree.share(project_id, cx));
1085 });
1086 }
1087
1088 self.client_subscriptions
1089 .push(self.client.add_model_for_remote_entity(project_id, cx));
1090 self.metadata_changed(cx);
1091 cx.emit(Event::RemoteIdChanged(Some(project_id)));
1092 cx.notify();
1093
1094 let mut status = self.client.status();
1095 self.client_state = Some(ProjectClientState::Local {
1096 remote_id: project_id,
1097 _detect_unshare: cx.spawn_weak(move |this, mut cx| {
1098 async move {
1099 let is_connected = status.next().await.map_or(false, |s| s.is_connected());
1100 // Even if we're initially connected, any future change of the status means we momentarily disconnected.
1101 if !is_connected || status.next().await.is_some() {
1102 if let Some(this) = this.upgrade(&cx) {
1103 let _ = this.update(&mut cx, |this, cx| this.unshare(cx));
1104 }
1105 }
1106 Ok(())
1107 }
1108 .log_err()
1109 }),
1110 });
1111
1112 cx.foreground().spawn(async move {
1113 futures::future::try_join_all(worktree_share_tasks).await?;
1114 Ok(())
1115 })
1116 }
1117
1118 pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1119 if self.is_remote() {
1120 return Err(anyhow!("attempted to unshare a remote project"));
1121 }
1122
1123 if let Some(ProjectClientState::Local { remote_id, .. }) = self.client_state.take() {
1124 self.collaborators.clear();
1125 self.shared_buffers.clear();
1126 self.client_subscriptions.clear();
1127
1128 for worktree_handle in self.worktrees.iter_mut() {
1129 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1130 let is_visible = worktree.update(cx, |worktree, _| {
1131 worktree.as_local_mut().unwrap().unshare();
1132 worktree.is_visible()
1133 });
1134 if !is_visible {
1135 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1136 }
1137 }
1138 }
1139
1140 for open_buffer in self.opened_buffers.values_mut() {
1141 if let OpenBuffer::Strong(buffer) = open_buffer {
1142 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1143 }
1144 }
1145
1146 self.metadata_changed(cx);
1147 cx.notify();
1148 self.client.send(proto::UnshareProject {
1149 project_id: remote_id,
1150 })?;
1151
1152 Ok(())
1153 } else {
1154 Err(anyhow!("attempted to unshare an unshared project"))
1155 }
1156 }
1157
1158 fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1159 if let Some(ProjectClientState::Remote {
1160 sharing_has_stopped,
1161 ..
1162 }) = &mut self.client_state
1163 {
1164 *sharing_has_stopped = true;
1165 self.collaborators.clear();
1166 for worktree in &self.worktrees {
1167 if let Some(worktree) = worktree.upgrade(cx) {
1168 worktree.update(cx, |worktree, _| {
1169 if let Some(worktree) = worktree.as_remote_mut() {
1170 worktree.disconnected_from_host();
1171 }
1172 });
1173 }
1174 }
1175 cx.emit(Event::DisconnectedFromHost);
1176 cx.notify();
1177
1178 // Wake up all futures currently waiting on a buffer to get opened,
1179 // to give them a chance to fail now that we've disconnected.
1180 *self.opened_buffer.0.borrow_mut() = ();
1181 }
1182 }
1183
1184 pub fn is_read_only(&self) -> bool {
1185 match &self.client_state {
1186 Some(ProjectClientState::Remote {
1187 sharing_has_stopped,
1188 ..
1189 }) => *sharing_has_stopped,
1190 _ => false,
1191 }
1192 }
1193
1194 pub fn is_local(&self) -> bool {
1195 match &self.client_state {
1196 Some(ProjectClientState::Remote { .. }) => false,
1197 _ => true,
1198 }
1199 }
1200
1201 pub fn is_remote(&self) -> bool {
1202 !self.is_local()
1203 }
1204
1205 pub fn create_buffer(
1206 &mut self,
1207 text: &str,
1208 language: Option<Arc<Language>>,
1209 cx: &mut ModelContext<Self>,
1210 ) -> Result<ModelHandle<Buffer>> {
1211 if self.is_remote() {
1212 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1213 }
1214
1215 let buffer = cx.add_model(|cx| {
1216 Buffer::new(self.replica_id(), text, cx)
1217 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1218 });
1219 self.register_buffer(&buffer, cx)?;
1220 Ok(buffer)
1221 }
1222
1223 pub fn open_path(
1224 &mut self,
1225 path: impl Into<ProjectPath>,
1226 cx: &mut ModelContext<Self>,
1227 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1228 let task = self.open_buffer(path, cx);
1229 cx.spawn_weak(|_, cx| async move {
1230 let buffer = task.await?;
1231 let project_entry_id = buffer
1232 .read_with(&cx, |buffer, cx| {
1233 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1234 })
1235 .ok_or_else(|| anyhow!("no project entry"))?;
1236 Ok((project_entry_id, buffer.into()))
1237 })
1238 }
1239
1240 pub fn open_local_buffer(
1241 &mut self,
1242 abs_path: impl AsRef<Path>,
1243 cx: &mut ModelContext<Self>,
1244 ) -> Task<Result<ModelHandle<Buffer>>> {
1245 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1246 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1247 } else {
1248 Task::ready(Err(anyhow!("no such path")))
1249 }
1250 }
1251
1252 pub fn open_buffer(
1253 &mut self,
1254 path: impl Into<ProjectPath>,
1255 cx: &mut ModelContext<Self>,
1256 ) -> Task<Result<ModelHandle<Buffer>>> {
1257 let project_path = path.into();
1258 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1259 worktree
1260 } else {
1261 return Task::ready(Err(anyhow!("no such worktree")));
1262 };
1263
1264 // If there is already a buffer for the given path, then return it.
1265 let existing_buffer = self.get_open_buffer(&project_path, cx);
1266 if let Some(existing_buffer) = existing_buffer {
1267 return Task::ready(Ok(existing_buffer));
1268 }
1269
1270 let mut loading_watch = match self.loading_buffers.entry(project_path.clone()) {
1271 // If the given path is already being loaded, then wait for that existing
1272 // task to complete and return the same buffer.
1273 hash_map::Entry::Occupied(e) => e.get().clone(),
1274
1275 // Otherwise, record the fact that this path is now being loaded.
1276 hash_map::Entry::Vacant(entry) => {
1277 let (mut tx, rx) = postage::watch::channel();
1278 entry.insert(rx.clone());
1279
1280 let load_buffer = if worktree.read(cx).is_local() {
1281 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1282 } else {
1283 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1284 };
1285
1286 cx.spawn(move |this, mut cx| async move {
1287 let load_result = load_buffer.await;
1288 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1289 // Record the fact that the buffer is no longer loading.
1290 this.loading_buffers.remove(&project_path);
1291 let buffer = load_result.map_err(Arc::new)?;
1292 Ok(buffer)
1293 }));
1294 })
1295 .detach();
1296 rx
1297 }
1298 };
1299
1300 cx.foreground().spawn(async move {
1301 loop {
1302 if let Some(result) = loading_watch.borrow().as_ref() {
1303 match result {
1304 Ok(buffer) => return Ok(buffer.clone()),
1305 Err(error) => return Err(anyhow!("{}", error)),
1306 }
1307 }
1308 loading_watch.next().await;
1309 }
1310 })
1311 }
1312
1313 fn open_local_buffer_internal(
1314 &mut self,
1315 path: &Arc<Path>,
1316 worktree: &ModelHandle<Worktree>,
1317 cx: &mut ModelContext<Self>,
1318 ) -> Task<Result<ModelHandle<Buffer>>> {
1319 let load_buffer = worktree.update(cx, |worktree, cx| {
1320 let worktree = worktree.as_local_mut().unwrap();
1321 worktree.load_buffer(path, cx)
1322 });
1323 cx.spawn(|this, mut cx| async move {
1324 let buffer = load_buffer.await?;
1325 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1326 Ok(buffer)
1327 })
1328 }
1329
1330 fn open_remote_buffer_internal(
1331 &mut self,
1332 path: &Arc<Path>,
1333 worktree: &ModelHandle<Worktree>,
1334 cx: &mut ModelContext<Self>,
1335 ) -> Task<Result<ModelHandle<Buffer>>> {
1336 let rpc = self.client.clone();
1337 let project_id = self.remote_id().unwrap();
1338 let remote_worktree_id = worktree.read(cx).id();
1339 let path = path.clone();
1340 let path_string = path.to_string_lossy().to_string();
1341 cx.spawn(|this, mut cx| async move {
1342 let response = rpc
1343 .request(proto::OpenBufferByPath {
1344 project_id,
1345 worktree_id: remote_worktree_id.to_proto(),
1346 path: path_string,
1347 })
1348 .await?;
1349 this.update(&mut cx, |this, cx| {
1350 this.wait_for_buffer(response.buffer_id, cx)
1351 })
1352 .await
1353 })
1354 }
1355
1356 /// LanguageServerName is owned, because it is inserted into a map
1357 fn open_local_buffer_via_lsp(
1358 &mut self,
1359 abs_path: lsp::Url,
1360 language_server_id: usize,
1361 language_server_name: LanguageServerName,
1362 cx: &mut ModelContext<Self>,
1363 ) -> Task<Result<ModelHandle<Buffer>>> {
1364 cx.spawn(|this, mut cx| async move {
1365 let abs_path = abs_path
1366 .to_file_path()
1367 .map_err(|_| anyhow!("can't convert URI to path"))?;
1368 let (worktree, relative_path) = if let Some(result) =
1369 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1370 {
1371 result
1372 } else {
1373 let worktree = this
1374 .update(&mut cx, |this, cx| {
1375 this.create_local_worktree(&abs_path, false, cx)
1376 })
1377 .await?;
1378 this.update(&mut cx, |this, cx| {
1379 this.language_server_ids.insert(
1380 (worktree.read(cx).id(), language_server_name),
1381 language_server_id,
1382 );
1383 });
1384 (worktree, PathBuf::new())
1385 };
1386
1387 let project_path = ProjectPath {
1388 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1389 path: relative_path.into(),
1390 };
1391 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1392 .await
1393 })
1394 }
1395
1396 pub fn open_buffer_by_id(
1397 &mut self,
1398 id: u64,
1399 cx: &mut ModelContext<Self>,
1400 ) -> Task<Result<ModelHandle<Buffer>>> {
1401 if let Some(buffer) = self.buffer_for_id(id, cx) {
1402 Task::ready(Ok(buffer))
1403 } else if self.is_local() {
1404 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1405 } else if let Some(project_id) = self.remote_id() {
1406 let request = self
1407 .client
1408 .request(proto::OpenBufferById { project_id, id });
1409 cx.spawn(|this, mut cx| async move {
1410 let buffer_id = request.await?.buffer_id;
1411 this.update(&mut cx, |this, cx| this.wait_for_buffer(buffer_id, cx))
1412 .await
1413 })
1414 } else {
1415 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1416 }
1417 }
1418
1419 pub fn save_buffer_as(
1420 &mut self,
1421 buffer: ModelHandle<Buffer>,
1422 abs_path: PathBuf,
1423 cx: &mut ModelContext<Project>,
1424 ) -> Task<Result<()>> {
1425 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1426 let old_path =
1427 File::from_dyn(buffer.read(cx).file()).and_then(|f| Some(f.as_local()?.abs_path(cx)));
1428 cx.spawn(|this, mut cx| async move {
1429 if let Some(old_path) = old_path {
1430 this.update(&mut cx, |this, cx| {
1431 this.unregister_buffer_from_language_server(&buffer, old_path, cx);
1432 });
1433 }
1434 let (worktree, path) = worktree_task.await?;
1435 worktree
1436 .update(&mut cx, |worktree, cx| {
1437 worktree
1438 .as_local_mut()
1439 .unwrap()
1440 .save_buffer_as(buffer.clone(), path, cx)
1441 })
1442 .await?;
1443 this.update(&mut cx, |this, cx| {
1444 this.assign_language_to_buffer(&buffer, cx);
1445 this.register_buffer_with_language_server(&buffer, cx);
1446 });
1447 Ok(())
1448 })
1449 }
1450
1451 pub fn get_open_buffer(
1452 &mut self,
1453 path: &ProjectPath,
1454 cx: &mut ModelContext<Self>,
1455 ) -> Option<ModelHandle<Buffer>> {
1456 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1457 self.opened_buffers.values().find_map(|buffer| {
1458 let buffer = buffer.upgrade(cx)?;
1459 let file = File::from_dyn(buffer.read(cx).file())?;
1460 if file.worktree == worktree && file.path() == &path.path {
1461 Some(buffer)
1462 } else {
1463 None
1464 }
1465 })
1466 }
1467
1468 fn register_buffer(
1469 &mut self,
1470 buffer: &ModelHandle<Buffer>,
1471 cx: &mut ModelContext<Self>,
1472 ) -> Result<()> {
1473 let remote_id = buffer.read(cx).remote_id();
1474 let open_buffer = if self.is_remote() || self.is_shared() {
1475 OpenBuffer::Strong(buffer.clone())
1476 } else {
1477 OpenBuffer::Weak(buffer.downgrade())
1478 };
1479
1480 match self.opened_buffers.insert(remote_id, open_buffer) {
1481 None => {}
1482 Some(OpenBuffer::Operations(operations)) => {
1483 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?
1484 }
1485 Some(OpenBuffer::Weak(existing_handle)) => {
1486 if existing_handle.upgrade(cx).is_some() {
1487 Err(anyhow!(
1488 "already registered buffer with remote id {}",
1489 remote_id
1490 ))?
1491 }
1492 }
1493 Some(OpenBuffer::Strong(_)) => Err(anyhow!(
1494 "already registered buffer with remote id {}",
1495 remote_id
1496 ))?,
1497 }
1498 cx.subscribe(buffer, |this, buffer, event, cx| {
1499 this.on_buffer_event(buffer, event, cx);
1500 })
1501 .detach();
1502
1503 self.assign_language_to_buffer(buffer, cx);
1504 self.register_buffer_with_language_server(buffer, cx);
1505 cx.observe_release(buffer, |this, buffer, cx| {
1506 if let Some(file) = File::from_dyn(buffer.file()) {
1507 if file.is_local() {
1508 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1509 if let Some((_, server)) = this.language_server_for_buffer(buffer, cx) {
1510 server
1511 .notify::<lsp::notification::DidCloseTextDocument>(
1512 lsp::DidCloseTextDocumentParams {
1513 text_document: lsp::TextDocumentIdentifier::new(uri),
1514 },
1515 )
1516 .log_err();
1517 }
1518 }
1519 }
1520 })
1521 .detach();
1522
1523 *self.opened_buffer.0.borrow_mut() = ();
1524 Ok(())
1525 }
1526
1527 fn register_buffer_with_language_server(
1528 &mut self,
1529 buffer_handle: &ModelHandle<Buffer>,
1530 cx: &mut ModelContext<Self>,
1531 ) {
1532 let buffer = buffer_handle.read(cx);
1533 let buffer_id = buffer.remote_id();
1534 if let Some(file) = File::from_dyn(buffer.file()) {
1535 if file.is_local() {
1536 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1537 let initial_snapshot = buffer.text_snapshot();
1538
1539 let mut language_server = None;
1540 let mut language_id = None;
1541 if let Some(language) = buffer.language() {
1542 let worktree_id = file.worktree_id(cx);
1543 if let Some(adapter) = language.lsp_adapter() {
1544 language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1545 language_server = self
1546 .language_server_ids
1547 .get(&(worktree_id, adapter.name.clone()))
1548 .and_then(|id| self.language_servers.get(id))
1549 .and_then(|server_state| {
1550 if let LanguageServerState::Running { server, .. } = server_state {
1551 Some(server.clone())
1552 } else {
1553 None
1554 }
1555 });
1556 }
1557 }
1558
1559 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1560 if let Some(diagnostics) = local_worktree.diagnostics_for_path(file.path()) {
1561 self.update_buffer_diagnostics(buffer_handle, diagnostics, None, cx)
1562 .log_err();
1563 }
1564 }
1565
1566 if let Some(server) = language_server {
1567 server
1568 .notify::<lsp::notification::DidOpenTextDocument>(
1569 lsp::DidOpenTextDocumentParams {
1570 text_document: lsp::TextDocumentItem::new(
1571 uri,
1572 language_id.unwrap_or_default(),
1573 0,
1574 initial_snapshot.text(),
1575 ),
1576 },
1577 )
1578 .log_err();
1579 buffer_handle.update(cx, |buffer, cx| {
1580 buffer.set_completion_triggers(
1581 server
1582 .capabilities()
1583 .completion_provider
1584 .as_ref()
1585 .and_then(|provider| provider.trigger_characters.clone())
1586 .unwrap_or_default(),
1587 cx,
1588 )
1589 });
1590 self.buffer_snapshots
1591 .insert(buffer_id, vec![(0, initial_snapshot)]);
1592 }
1593 }
1594 }
1595 }
1596
1597 fn unregister_buffer_from_language_server(
1598 &mut self,
1599 buffer: &ModelHandle<Buffer>,
1600 old_path: PathBuf,
1601 cx: &mut ModelContext<Self>,
1602 ) {
1603 buffer.update(cx, |buffer, cx| {
1604 buffer.update_diagnostics(Default::default(), cx);
1605 self.buffer_snapshots.remove(&buffer.remote_id());
1606 if let Some((_, language_server)) = self.language_server_for_buffer(buffer, cx) {
1607 language_server
1608 .notify::<lsp::notification::DidCloseTextDocument>(
1609 lsp::DidCloseTextDocumentParams {
1610 text_document: lsp::TextDocumentIdentifier::new(
1611 lsp::Url::from_file_path(old_path).unwrap(),
1612 ),
1613 },
1614 )
1615 .log_err();
1616 }
1617 });
1618 }
1619
1620 fn on_buffer_event(
1621 &mut self,
1622 buffer: ModelHandle<Buffer>,
1623 event: &BufferEvent,
1624 cx: &mut ModelContext<Self>,
1625 ) -> Option<()> {
1626 match event {
1627 BufferEvent::Operation(operation) => {
1628 if let Some(project_id) = self.remote_id() {
1629 let request = self.client.request(proto::UpdateBuffer {
1630 project_id,
1631 buffer_id: buffer.read(cx).remote_id(),
1632 operations: vec![language::proto::serialize_operation(operation)],
1633 });
1634 cx.background().spawn(request).detach_and_log_err(cx);
1635 } else if let Some(project_id) = self.remote_id() {
1636 let _ = self
1637 .client
1638 .send(proto::RegisterProjectActivity { project_id });
1639 }
1640 }
1641 BufferEvent::Edited { .. } => {
1642 let language_server = self
1643 .language_server_for_buffer(buffer.read(cx), cx)
1644 .map(|(_, server)| server.clone())?;
1645 let buffer = buffer.read(cx);
1646 let file = File::from_dyn(buffer.file())?;
1647 let abs_path = file.as_local()?.abs_path(cx);
1648 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1649 let buffer_snapshots = self.buffer_snapshots.get_mut(&buffer.remote_id())?;
1650 let (version, prev_snapshot) = buffer_snapshots.last()?;
1651 let next_snapshot = buffer.text_snapshot();
1652 let next_version = version + 1;
1653
1654 let content_changes = buffer
1655 .edits_since::<(PointUtf16, usize)>(prev_snapshot.version())
1656 .map(|edit| {
1657 let edit_start = edit.new.start.0;
1658 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
1659 let new_text = next_snapshot
1660 .text_for_range(edit.new.start.1..edit.new.end.1)
1661 .collect();
1662 lsp::TextDocumentContentChangeEvent {
1663 range: Some(lsp::Range::new(
1664 point_to_lsp(edit_start),
1665 point_to_lsp(edit_end),
1666 )),
1667 range_length: None,
1668 text: new_text,
1669 }
1670 })
1671 .collect();
1672
1673 buffer_snapshots.push((next_version, next_snapshot));
1674
1675 language_server
1676 .notify::<lsp::notification::DidChangeTextDocument>(
1677 lsp::DidChangeTextDocumentParams {
1678 text_document: lsp::VersionedTextDocumentIdentifier::new(
1679 uri,
1680 next_version,
1681 ),
1682 content_changes,
1683 },
1684 )
1685 .log_err();
1686 }
1687 BufferEvent::Saved => {
1688 let file = File::from_dyn(buffer.read(cx).file())?;
1689 let worktree_id = file.worktree_id(cx);
1690 let abs_path = file.as_local()?.abs_path(cx);
1691 let text_document = lsp::TextDocumentIdentifier {
1692 uri: lsp::Url::from_file_path(abs_path).unwrap(),
1693 };
1694
1695 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
1696 server
1697 .notify::<lsp::notification::DidSaveTextDocument>(
1698 lsp::DidSaveTextDocumentParams {
1699 text_document: text_document.clone(),
1700 text: None,
1701 },
1702 )
1703 .log_err();
1704 }
1705
1706 // After saving a buffer, simulate disk-based diagnostics being finished for languages
1707 // that don't support a disk-based progress token.
1708 let (lsp_adapter, language_server) =
1709 self.language_server_for_buffer(buffer.read(cx), cx)?;
1710 if lsp_adapter.disk_based_diagnostics_progress_token.is_none() {
1711 let server_id = language_server.server_id();
1712 self.disk_based_diagnostics_finished(server_id, cx);
1713 self.broadcast_language_server_update(
1714 server_id,
1715 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
1716 proto::LspDiskBasedDiagnosticsUpdated {},
1717 ),
1718 );
1719 }
1720 }
1721 _ => {}
1722 }
1723
1724 None
1725 }
1726
1727 fn language_servers_for_worktree(
1728 &self,
1729 worktree_id: WorktreeId,
1730 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
1731 self.language_server_ids
1732 .iter()
1733 .filter_map(move |((language_server_worktree_id, _), id)| {
1734 if *language_server_worktree_id == worktree_id {
1735 if let Some(LanguageServerState::Running {
1736 adapter,
1737 language,
1738 server,
1739 }) = self.language_servers.get(id)
1740 {
1741 return Some((adapter, language, server));
1742 }
1743 }
1744 None
1745 })
1746 }
1747
1748 fn maintain_buffer_languages(
1749 languages: &LanguageRegistry,
1750 cx: &mut ModelContext<Project>,
1751 ) -> Task<()> {
1752 let mut subscription = languages.subscribe();
1753 cx.spawn_weak(|project, mut cx| async move {
1754 while let Some(()) = subscription.next().await {
1755 if let Some(project) = project.upgrade(&cx) {
1756 project.update(&mut cx, |project, cx| {
1757 let mut buffers_without_language = Vec::new();
1758 for buffer in project.opened_buffers.values() {
1759 if let Some(buffer) = buffer.upgrade(cx) {
1760 if buffer.read(cx).language().is_none() {
1761 buffers_without_language.push(buffer);
1762 }
1763 }
1764 }
1765
1766 for buffer in buffers_without_language {
1767 project.assign_language_to_buffer(&buffer, cx);
1768 project.register_buffer_with_language_server(&buffer, cx);
1769 }
1770 });
1771 }
1772 }
1773 })
1774 }
1775
1776 fn assign_language_to_buffer(
1777 &mut self,
1778 buffer: &ModelHandle<Buffer>,
1779 cx: &mut ModelContext<Self>,
1780 ) -> Option<()> {
1781 // If the buffer has a language, set it and start the language server if we haven't already.
1782 let full_path = buffer.read(cx).file()?.full_path(cx);
1783 let language = self.languages.select_language(&full_path)?;
1784 buffer.update(cx, |buffer, cx| {
1785 buffer.set_language_registry(self.languages.clone());
1786 buffer.set_language(Some(language.clone()), cx);
1787 });
1788
1789 let file = File::from_dyn(buffer.read(cx).file())?;
1790 let worktree = file.worktree.read(cx).as_local()?;
1791 let worktree_id = worktree.id();
1792 let worktree_abs_path = worktree.abs_path().clone();
1793 self.start_language_server(worktree_id, worktree_abs_path, language, cx);
1794
1795 None
1796 }
1797
1798 fn merge_json_value_into(source: serde_json::Value, target: &mut serde_json::Value) {
1799 use serde_json::Value;
1800
1801 match (source, target) {
1802 (Value::Object(source), Value::Object(target)) => {
1803 for (key, value) in source {
1804 if let Some(target) = target.get_mut(&key) {
1805 Self::merge_json_value_into(value, target);
1806 } else {
1807 target.insert(key.clone(), value);
1808 }
1809 }
1810 }
1811
1812 (source, target) => *target = source,
1813 }
1814 }
1815
1816 fn start_language_server(
1817 &mut self,
1818 worktree_id: WorktreeId,
1819 worktree_path: Arc<Path>,
1820 language: Arc<Language>,
1821 cx: &mut ModelContext<Self>,
1822 ) {
1823 if !cx
1824 .global::<Settings>()
1825 .enable_language_server(Some(&language.name()))
1826 {
1827 return;
1828 }
1829
1830 let adapter = if let Some(adapter) = language.lsp_adapter() {
1831 adapter
1832 } else {
1833 return;
1834 };
1835 let key = (worktree_id, adapter.name.clone());
1836
1837 let mut initialization_options = adapter.initialization_options.clone();
1838
1839 let lsp = &cx.global::<Settings>().lsp.get(&adapter.name.0);
1840 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
1841 match (&mut initialization_options, override_options) {
1842 (Some(initialization_options), Some(override_options)) => {
1843 Self::merge_json_value_into(override_options, initialization_options);
1844 }
1845
1846 (None, override_options) => initialization_options = override_options,
1847
1848 _ => {}
1849 }
1850
1851 self.language_server_ids
1852 .entry(key.clone())
1853 .or_insert_with(|| {
1854 let server_id = post_inc(&mut self.next_language_server_id);
1855 let language_server = self.languages.start_language_server(
1856 server_id,
1857 language.clone(),
1858 worktree_path,
1859 self.client.http_client(),
1860 cx,
1861 );
1862 self.language_servers.insert(
1863 server_id,
1864 LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
1865 let language_server = language_server?.await.log_err()?;
1866 let language_server = language_server
1867 .initialize(initialization_options)
1868 .await
1869 .log_err()?;
1870 let this = this.upgrade(&cx)?;
1871
1872 language_server
1873 .on_notification::<lsp::notification::PublishDiagnostics, _>({
1874 let this = this.downgrade();
1875 let adapter = adapter.clone();
1876 move |mut params, cx| {
1877 let this = this;
1878 let adapter = adapter.clone();
1879 cx.spawn(|mut cx| async move {
1880 adapter.process_diagnostics(&mut params).await;
1881 if let Some(this) = this.upgrade(&cx) {
1882 this.update(&mut cx, |this, cx| {
1883 this.update_diagnostics(
1884 server_id,
1885 params,
1886 &adapter.disk_based_diagnostic_sources,
1887 cx,
1888 )
1889 .log_err();
1890 });
1891 }
1892 })
1893 .detach();
1894 }
1895 })
1896 .detach();
1897
1898 language_server
1899 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
1900 let settings = this.read_with(&cx, |this, _| {
1901 this.language_server_settings.clone()
1902 });
1903 move |params, _| {
1904 let settings = settings.lock().clone();
1905 async move {
1906 Ok(params
1907 .items
1908 .into_iter()
1909 .map(|item| {
1910 if let Some(section) = &item.section {
1911 settings
1912 .get(section)
1913 .cloned()
1914 .unwrap_or(serde_json::Value::Null)
1915 } else {
1916 settings.clone()
1917 }
1918 })
1919 .collect())
1920 }
1921 }
1922 })
1923 .detach();
1924
1925 // Even though we don't have handling for these requests, respond to them to
1926 // avoid stalling any language server like `gopls` which waits for a response
1927 // to these requests when initializing.
1928 language_server
1929 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
1930 let this = this.downgrade();
1931 move |params, mut cx| async move {
1932 if let Some(this) = this.upgrade(&cx) {
1933 this.update(&mut cx, |this, _| {
1934 if let Some(status) =
1935 this.language_server_statuses.get_mut(&server_id)
1936 {
1937 if let lsp::NumberOrString::String(token) =
1938 params.token
1939 {
1940 status.progress_tokens.insert(token);
1941 }
1942 }
1943 });
1944 }
1945 Ok(())
1946 }
1947 })
1948 .detach();
1949 language_server
1950 .on_request::<lsp::request::RegisterCapability, _, _>(|_, _| async {
1951 Ok(())
1952 })
1953 .detach();
1954
1955 language_server
1956 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
1957 let this = this.downgrade();
1958 let adapter = adapter.clone();
1959 let language_server = language_server.clone();
1960 move |params, cx| {
1961 Self::on_lsp_workspace_edit(
1962 this,
1963 params,
1964 server_id,
1965 adapter.clone(),
1966 language_server.clone(),
1967 cx,
1968 )
1969 }
1970 })
1971 .detach();
1972
1973 let disk_based_diagnostics_progress_token =
1974 adapter.disk_based_diagnostics_progress_token.clone();
1975
1976 language_server
1977 .on_notification::<lsp::notification::Progress, _>({
1978 let this = this.downgrade();
1979 move |params, mut cx| {
1980 if let Some(this) = this.upgrade(&cx) {
1981 this.update(&mut cx, |this, cx| {
1982 this.on_lsp_progress(
1983 params,
1984 server_id,
1985 disk_based_diagnostics_progress_token.clone(),
1986 cx,
1987 );
1988 });
1989 }
1990 }
1991 })
1992 .detach();
1993
1994 this.update(&mut cx, |this, cx| {
1995 // If the language server for this key doesn't match the server id, don't store the
1996 // server. Which will cause it to be dropped, killing the process
1997 if this
1998 .language_server_ids
1999 .get(&key)
2000 .map(|id| id != &server_id)
2001 .unwrap_or(false)
2002 {
2003 return None;
2004 }
2005
2006 // Update language_servers collection with Running variant of LanguageServerState
2007 // indicating that the server is up and running and ready
2008 this.language_servers.insert(
2009 server_id,
2010 LanguageServerState::Running {
2011 adapter: adapter.clone(),
2012 language,
2013 server: language_server.clone(),
2014 },
2015 );
2016 this.language_server_statuses.insert(
2017 server_id,
2018 LanguageServerStatus {
2019 name: language_server.name().to_string(),
2020 pending_work: Default::default(),
2021 has_pending_diagnostic_updates: false,
2022 progress_tokens: Default::default(),
2023 },
2024 );
2025 language_server
2026 .notify::<lsp::notification::DidChangeConfiguration>(
2027 lsp::DidChangeConfigurationParams {
2028 settings: this.language_server_settings.lock().clone(),
2029 },
2030 )
2031 .ok();
2032
2033 if let Some(project_id) = this.remote_id() {
2034 this.client
2035 .send(proto::StartLanguageServer {
2036 project_id,
2037 server: Some(proto::LanguageServer {
2038 id: server_id as u64,
2039 name: language_server.name().to_string(),
2040 }),
2041 })
2042 .log_err();
2043 }
2044
2045 // Tell the language server about every open buffer in the worktree that matches the language.
2046 for buffer in this.opened_buffers.values() {
2047 if let Some(buffer_handle) = buffer.upgrade(cx) {
2048 let buffer = buffer_handle.read(cx);
2049 let file = if let Some(file) = File::from_dyn(buffer.file()) {
2050 file
2051 } else {
2052 continue;
2053 };
2054 let language = if let Some(language) = buffer.language() {
2055 language
2056 } else {
2057 continue;
2058 };
2059 if file.worktree.read(cx).id() != key.0
2060 || language.lsp_adapter().map(|a| a.name.clone())
2061 != Some(key.1.clone())
2062 {
2063 continue;
2064 }
2065
2066 let file = file.as_local()?;
2067 let versions = this
2068 .buffer_snapshots
2069 .entry(buffer.remote_id())
2070 .or_insert_with(|| vec![(0, buffer.text_snapshot())]);
2071 let (version, initial_snapshot) = versions.last().unwrap();
2072 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2073 language_server
2074 .notify::<lsp::notification::DidOpenTextDocument>(
2075 lsp::DidOpenTextDocumentParams {
2076 text_document: lsp::TextDocumentItem::new(
2077 uri,
2078 adapter
2079 .language_ids
2080 .get(language.name().as_ref())
2081 .cloned()
2082 .unwrap_or_default(),
2083 *version,
2084 initial_snapshot.text(),
2085 ),
2086 },
2087 )
2088 .log_err()?;
2089 buffer_handle.update(cx, |buffer, cx| {
2090 buffer.set_completion_triggers(
2091 language_server
2092 .capabilities()
2093 .completion_provider
2094 .as_ref()
2095 .and_then(|provider| {
2096 provider.trigger_characters.clone()
2097 })
2098 .unwrap_or_default(),
2099 cx,
2100 )
2101 });
2102 }
2103 }
2104
2105 cx.notify();
2106 Some(language_server)
2107 })
2108 })),
2109 );
2110
2111 server_id
2112 });
2113 }
2114
2115 // Returns a list of all of the worktrees which no longer have a language server and the root path
2116 // for the stopped server
2117 fn stop_language_server(
2118 &mut self,
2119 worktree_id: WorktreeId,
2120 adapter_name: LanguageServerName,
2121 cx: &mut ModelContext<Self>,
2122 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
2123 let key = (worktree_id, adapter_name);
2124 if let Some(server_id) = self.language_server_ids.remove(&key) {
2125 // Remove other entries for this language server as well
2126 let mut orphaned_worktrees = vec![worktree_id];
2127 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
2128 for other_key in other_keys {
2129 if self.language_server_ids.get(&other_key) == Some(&server_id) {
2130 self.language_server_ids.remove(&other_key);
2131 orphaned_worktrees.push(other_key.0);
2132 }
2133 }
2134
2135 self.language_server_statuses.remove(&server_id);
2136 cx.notify();
2137
2138 let server_state = self.language_servers.remove(&server_id);
2139 cx.spawn_weak(|this, mut cx| async move {
2140 let mut root_path = None;
2141
2142 let server = match server_state {
2143 Some(LanguageServerState::Starting(started_language_server)) => {
2144 started_language_server.await
2145 }
2146 Some(LanguageServerState::Running { server, .. }) => Some(server),
2147 None => None,
2148 };
2149
2150 if let Some(server) = server {
2151 root_path = Some(server.root_path().clone());
2152 if let Some(shutdown) = server.shutdown() {
2153 shutdown.await;
2154 }
2155 }
2156
2157 if let Some(this) = this.upgrade(&cx) {
2158 this.update(&mut cx, |this, cx| {
2159 this.language_server_statuses.remove(&server_id);
2160 cx.notify();
2161 });
2162 }
2163
2164 (root_path, orphaned_worktrees)
2165 })
2166 } else {
2167 Task::ready((None, Vec::new()))
2168 }
2169 }
2170
2171 pub fn restart_language_servers_for_buffers(
2172 &mut self,
2173 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2174 cx: &mut ModelContext<Self>,
2175 ) -> Option<()> {
2176 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, PathBuf)> = buffers
2177 .into_iter()
2178 .filter_map(|buffer| {
2179 let file = File::from_dyn(buffer.read(cx).file())?;
2180 let worktree = file.worktree.read(cx).as_local()?;
2181 let worktree_id = worktree.id();
2182 let worktree_abs_path = worktree.abs_path().clone();
2183 let full_path = file.full_path(cx);
2184 Some((worktree_id, worktree_abs_path, full_path))
2185 })
2186 .collect();
2187 for (worktree_id, worktree_abs_path, full_path) in language_server_lookup_info {
2188 let language = self.languages.select_language(&full_path)?;
2189 self.restart_language_server(worktree_id, worktree_abs_path, language, cx);
2190 }
2191
2192 None
2193 }
2194
2195 fn restart_language_server(
2196 &mut self,
2197 worktree_id: WorktreeId,
2198 fallback_path: Arc<Path>,
2199 language: Arc<Language>,
2200 cx: &mut ModelContext<Self>,
2201 ) {
2202 let adapter = if let Some(adapter) = language.lsp_adapter() {
2203 adapter
2204 } else {
2205 return;
2206 };
2207
2208 let server_name = adapter.name.clone();
2209 let stop = self.stop_language_server(worktree_id, server_name.clone(), cx);
2210 cx.spawn_weak(|this, mut cx| async move {
2211 let (original_root_path, orphaned_worktrees) = stop.await;
2212 if let Some(this) = this.upgrade(&cx) {
2213 this.update(&mut cx, |this, cx| {
2214 // Attempt to restart using original server path. Fallback to passed in
2215 // path if we could not retrieve the root path
2216 let root_path = original_root_path
2217 .map(|path_buf| Arc::from(path_buf.as_path()))
2218 .unwrap_or(fallback_path);
2219
2220 this.start_language_server(worktree_id, root_path, language, cx);
2221
2222 // Lookup new server id and set it for each of the orphaned worktrees
2223 if let Some(new_server_id) = this
2224 .language_server_ids
2225 .get(&(worktree_id, server_name.clone()))
2226 .cloned()
2227 {
2228 for orphaned_worktree in orphaned_worktrees {
2229 this.language_server_ids
2230 .insert((orphaned_worktree, server_name.clone()), new_server_id);
2231 }
2232 }
2233 });
2234 }
2235 })
2236 .detach();
2237 }
2238
2239 fn on_lsp_progress(
2240 &mut self,
2241 progress: lsp::ProgressParams,
2242 server_id: usize,
2243 disk_based_diagnostics_progress_token: Option<String>,
2244 cx: &mut ModelContext<Self>,
2245 ) {
2246 let token = match progress.token {
2247 lsp::NumberOrString::String(token) => token,
2248 lsp::NumberOrString::Number(token) => {
2249 log::info!("skipping numeric progress token {}", token);
2250 return;
2251 }
2252 };
2253 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
2254 let language_server_status =
2255 if let Some(status) = self.language_server_statuses.get_mut(&server_id) {
2256 status
2257 } else {
2258 return;
2259 };
2260
2261 if !language_server_status.progress_tokens.contains(&token) {
2262 return;
2263 }
2264
2265 let is_disk_based_diagnostics_progress = disk_based_diagnostics_progress_token
2266 .as_ref()
2267 .map_or(false, |disk_based_token| {
2268 token.starts_with(disk_based_token)
2269 });
2270
2271 match progress {
2272 lsp::WorkDoneProgress::Begin(report) => {
2273 if is_disk_based_diagnostics_progress {
2274 language_server_status.has_pending_diagnostic_updates = true;
2275 self.disk_based_diagnostics_started(server_id, cx);
2276 self.broadcast_language_server_update(
2277 server_id,
2278 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(
2279 proto::LspDiskBasedDiagnosticsUpdating {},
2280 ),
2281 );
2282 } else {
2283 self.on_lsp_work_start(
2284 server_id,
2285 token.clone(),
2286 LanguageServerProgress {
2287 message: report.message.clone(),
2288 percentage: report.percentage.map(|p| p as usize),
2289 last_update_at: Instant::now(),
2290 },
2291 cx,
2292 );
2293 self.broadcast_language_server_update(
2294 server_id,
2295 proto::update_language_server::Variant::WorkStart(proto::LspWorkStart {
2296 token,
2297 message: report.message,
2298 percentage: report.percentage.map(|p| p as u32),
2299 }),
2300 );
2301 }
2302 }
2303 lsp::WorkDoneProgress::Report(report) => {
2304 if !is_disk_based_diagnostics_progress {
2305 self.on_lsp_work_progress(
2306 server_id,
2307 token.clone(),
2308 LanguageServerProgress {
2309 message: report.message.clone(),
2310 percentage: report.percentage.map(|p| p as usize),
2311 last_update_at: Instant::now(),
2312 },
2313 cx,
2314 );
2315 self.broadcast_language_server_update(
2316 server_id,
2317 proto::update_language_server::Variant::WorkProgress(
2318 proto::LspWorkProgress {
2319 token,
2320 message: report.message,
2321 percentage: report.percentage.map(|p| p as u32),
2322 },
2323 ),
2324 );
2325 }
2326 }
2327 lsp::WorkDoneProgress::End(_) => {
2328 language_server_status.progress_tokens.remove(&token);
2329
2330 if is_disk_based_diagnostics_progress {
2331 language_server_status.has_pending_diagnostic_updates = false;
2332 self.disk_based_diagnostics_finished(server_id, cx);
2333 self.broadcast_language_server_update(
2334 server_id,
2335 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2336 proto::LspDiskBasedDiagnosticsUpdated {},
2337 ),
2338 );
2339 } else {
2340 self.on_lsp_work_end(server_id, token.clone(), cx);
2341 self.broadcast_language_server_update(
2342 server_id,
2343 proto::update_language_server::Variant::WorkEnd(proto::LspWorkEnd {
2344 token,
2345 }),
2346 );
2347 }
2348 }
2349 }
2350 }
2351
2352 fn on_lsp_work_start(
2353 &mut self,
2354 language_server_id: usize,
2355 token: String,
2356 progress: LanguageServerProgress,
2357 cx: &mut ModelContext<Self>,
2358 ) {
2359 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2360 status.pending_work.insert(token, progress);
2361 cx.notify();
2362 }
2363 }
2364
2365 fn on_lsp_work_progress(
2366 &mut self,
2367 language_server_id: usize,
2368 token: String,
2369 progress: LanguageServerProgress,
2370 cx: &mut ModelContext<Self>,
2371 ) {
2372 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2373 let entry = status
2374 .pending_work
2375 .entry(token)
2376 .or_insert(LanguageServerProgress {
2377 message: Default::default(),
2378 percentage: Default::default(),
2379 last_update_at: progress.last_update_at,
2380 });
2381 if progress.message.is_some() {
2382 entry.message = progress.message;
2383 }
2384 if progress.percentage.is_some() {
2385 entry.percentage = progress.percentage;
2386 }
2387 entry.last_update_at = progress.last_update_at;
2388 cx.notify();
2389 }
2390 }
2391
2392 fn on_lsp_work_end(
2393 &mut self,
2394 language_server_id: usize,
2395 token: String,
2396 cx: &mut ModelContext<Self>,
2397 ) {
2398 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2399 status.pending_work.remove(&token);
2400 cx.notify();
2401 }
2402 }
2403
2404 async fn on_lsp_workspace_edit(
2405 this: WeakModelHandle<Self>,
2406 params: lsp::ApplyWorkspaceEditParams,
2407 server_id: usize,
2408 adapter: Arc<CachedLspAdapter>,
2409 language_server: Arc<LanguageServer>,
2410 mut cx: AsyncAppContext,
2411 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
2412 let this = this
2413 .upgrade(&cx)
2414 .ok_or_else(|| anyhow!("project project closed"))?;
2415 let transaction = Self::deserialize_workspace_edit(
2416 this.clone(),
2417 params.edit,
2418 true,
2419 adapter.clone(),
2420 language_server.clone(),
2421 &mut cx,
2422 )
2423 .await
2424 .log_err();
2425 this.update(&mut cx, |this, _| {
2426 if let Some(transaction) = transaction {
2427 this.last_workspace_edits_by_language_server
2428 .insert(server_id, transaction);
2429 }
2430 });
2431 Ok(lsp::ApplyWorkspaceEditResponse {
2432 applied: true,
2433 failed_change: None,
2434 failure_reason: None,
2435 })
2436 }
2437
2438 fn broadcast_language_server_update(
2439 &self,
2440 language_server_id: usize,
2441 event: proto::update_language_server::Variant,
2442 ) {
2443 if let Some(project_id) = self.remote_id() {
2444 self.client
2445 .send(proto::UpdateLanguageServer {
2446 project_id,
2447 language_server_id: language_server_id as u64,
2448 variant: Some(event),
2449 })
2450 .log_err();
2451 }
2452 }
2453
2454 pub fn set_language_server_settings(&mut self, settings: serde_json::Value) {
2455 for server_state in self.language_servers.values() {
2456 if let LanguageServerState::Running { server, .. } = server_state {
2457 server
2458 .notify::<lsp::notification::DidChangeConfiguration>(
2459 lsp::DidChangeConfigurationParams {
2460 settings: settings.clone(),
2461 },
2462 )
2463 .ok();
2464 }
2465 }
2466 *self.language_server_settings.lock() = settings;
2467 }
2468
2469 pub fn language_server_statuses(
2470 &self,
2471 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
2472 self.language_server_statuses.values()
2473 }
2474
2475 pub fn update_diagnostics(
2476 &mut self,
2477 language_server_id: usize,
2478 params: lsp::PublishDiagnosticsParams,
2479 disk_based_sources: &[String],
2480 cx: &mut ModelContext<Self>,
2481 ) -> Result<()> {
2482 let abs_path = params
2483 .uri
2484 .to_file_path()
2485 .map_err(|_| anyhow!("URI is not a file"))?;
2486 let mut diagnostics = Vec::default();
2487 let mut primary_diagnostic_group_ids = HashMap::default();
2488 let mut sources_by_group_id = HashMap::default();
2489 let mut supporting_diagnostics = HashMap::default();
2490 for diagnostic in ¶ms.diagnostics {
2491 let source = diagnostic.source.as_ref();
2492 let code = diagnostic.code.as_ref().map(|code| match code {
2493 lsp::NumberOrString::Number(code) => code.to_string(),
2494 lsp::NumberOrString::String(code) => code.clone(),
2495 });
2496 let range = range_from_lsp(diagnostic.range);
2497 let is_supporting = diagnostic
2498 .related_information
2499 .as_ref()
2500 .map_or(false, |infos| {
2501 infos.iter().any(|info| {
2502 primary_diagnostic_group_ids.contains_key(&(
2503 source,
2504 code.clone(),
2505 range_from_lsp(info.location.range),
2506 ))
2507 })
2508 });
2509
2510 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
2511 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
2512 });
2513
2514 if is_supporting {
2515 supporting_diagnostics.insert(
2516 (source, code.clone(), range),
2517 (diagnostic.severity, is_unnecessary),
2518 );
2519 } else {
2520 let group_id = post_inc(&mut self.next_diagnostic_group_id);
2521 let is_disk_based =
2522 source.map_or(false, |source| disk_based_sources.contains(source));
2523
2524 sources_by_group_id.insert(group_id, source);
2525 primary_diagnostic_group_ids
2526 .insert((source, code.clone(), range.clone()), group_id);
2527
2528 diagnostics.push(DiagnosticEntry {
2529 range,
2530 diagnostic: Diagnostic {
2531 code: code.clone(),
2532 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
2533 message: diagnostic.message.clone(),
2534 group_id,
2535 is_primary: true,
2536 is_valid: true,
2537 is_disk_based,
2538 is_unnecessary,
2539 },
2540 });
2541 if let Some(infos) = &diagnostic.related_information {
2542 for info in infos {
2543 if info.location.uri == params.uri && !info.message.is_empty() {
2544 let range = range_from_lsp(info.location.range);
2545 diagnostics.push(DiagnosticEntry {
2546 range,
2547 diagnostic: Diagnostic {
2548 code: code.clone(),
2549 severity: DiagnosticSeverity::INFORMATION,
2550 message: info.message.clone(),
2551 group_id,
2552 is_primary: false,
2553 is_valid: true,
2554 is_disk_based,
2555 is_unnecessary: false,
2556 },
2557 });
2558 }
2559 }
2560 }
2561 }
2562 }
2563
2564 for entry in &mut diagnostics {
2565 let diagnostic = &mut entry.diagnostic;
2566 if !diagnostic.is_primary {
2567 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
2568 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
2569 source,
2570 diagnostic.code.clone(),
2571 entry.range.clone(),
2572 )) {
2573 if let Some(severity) = severity {
2574 diagnostic.severity = severity;
2575 }
2576 diagnostic.is_unnecessary = is_unnecessary;
2577 }
2578 }
2579 }
2580
2581 self.update_diagnostic_entries(
2582 language_server_id,
2583 abs_path,
2584 params.version,
2585 diagnostics,
2586 cx,
2587 )?;
2588 Ok(())
2589 }
2590
2591 pub fn update_diagnostic_entries(
2592 &mut self,
2593 language_server_id: usize,
2594 abs_path: PathBuf,
2595 version: Option<i32>,
2596 diagnostics: Vec<DiagnosticEntry<PointUtf16>>,
2597 cx: &mut ModelContext<Project>,
2598 ) -> Result<(), anyhow::Error> {
2599 let (worktree, relative_path) = self
2600 .find_local_worktree(&abs_path, cx)
2601 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
2602
2603 let project_path = ProjectPath {
2604 worktree_id: worktree.read(cx).id(),
2605 path: relative_path.into(),
2606 };
2607 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
2608 self.update_buffer_diagnostics(&buffer, diagnostics.clone(), version, cx)?;
2609 }
2610
2611 let updated = worktree.update(cx, |worktree, cx| {
2612 worktree
2613 .as_local_mut()
2614 .ok_or_else(|| anyhow!("not a local worktree"))?
2615 .update_diagnostics(
2616 language_server_id,
2617 project_path.path.clone(),
2618 diagnostics,
2619 cx,
2620 )
2621 })?;
2622 if updated {
2623 cx.emit(Event::DiagnosticsUpdated {
2624 language_server_id,
2625 path: project_path,
2626 });
2627 }
2628 Ok(())
2629 }
2630
2631 fn update_buffer_diagnostics(
2632 &mut self,
2633 buffer: &ModelHandle<Buffer>,
2634 mut diagnostics: Vec<DiagnosticEntry<PointUtf16>>,
2635 version: Option<i32>,
2636 cx: &mut ModelContext<Self>,
2637 ) -> Result<()> {
2638 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
2639 Ordering::Equal
2640 .then_with(|| b.is_primary.cmp(&a.is_primary))
2641 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
2642 .then_with(|| a.severity.cmp(&b.severity))
2643 .then_with(|| a.message.cmp(&b.message))
2644 }
2645
2646 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, version, cx)?;
2647
2648 diagnostics.sort_unstable_by(|a, b| {
2649 Ordering::Equal
2650 .then_with(|| a.range.start.cmp(&b.range.start))
2651 .then_with(|| b.range.end.cmp(&a.range.end))
2652 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
2653 });
2654
2655 let mut sanitized_diagnostics = Vec::new();
2656 let edits_since_save = Patch::new(
2657 snapshot
2658 .edits_since::<PointUtf16>(buffer.read(cx).saved_version())
2659 .collect(),
2660 );
2661 for entry in diagnostics {
2662 let start;
2663 let end;
2664 if entry.diagnostic.is_disk_based {
2665 // Some diagnostics are based on files on disk instead of buffers'
2666 // current contents. Adjust these diagnostics' ranges to reflect
2667 // any unsaved edits.
2668 start = edits_since_save.old_to_new(entry.range.start);
2669 end = edits_since_save.old_to_new(entry.range.end);
2670 } else {
2671 start = entry.range.start;
2672 end = entry.range.end;
2673 }
2674
2675 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
2676 ..snapshot.clip_point_utf16(end, Bias::Right);
2677
2678 // Expand empty ranges by one character
2679 if range.start == range.end {
2680 range.end.column += 1;
2681 range.end = snapshot.clip_point_utf16(range.end, Bias::Right);
2682 if range.start == range.end && range.end.column > 0 {
2683 range.start.column -= 1;
2684 range.start = snapshot.clip_point_utf16(range.start, Bias::Left);
2685 }
2686 }
2687
2688 sanitized_diagnostics.push(DiagnosticEntry {
2689 range,
2690 diagnostic: entry.diagnostic,
2691 });
2692 }
2693 drop(edits_since_save);
2694
2695 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
2696 buffer.update(cx, |buffer, cx| buffer.update_diagnostics(set, cx));
2697 Ok(())
2698 }
2699
2700 pub fn reload_buffers(
2701 &self,
2702 buffers: HashSet<ModelHandle<Buffer>>,
2703 push_to_history: bool,
2704 cx: &mut ModelContext<Self>,
2705 ) -> Task<Result<ProjectTransaction>> {
2706 let mut local_buffers = Vec::new();
2707 let mut remote_buffers = None;
2708 for buffer_handle in buffers {
2709 let buffer = buffer_handle.read(cx);
2710 if buffer.is_dirty() {
2711 if let Some(file) = File::from_dyn(buffer.file()) {
2712 if file.is_local() {
2713 local_buffers.push(buffer_handle);
2714 } else {
2715 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
2716 }
2717 }
2718 }
2719 }
2720
2721 let remote_buffers = self.remote_id().zip(remote_buffers);
2722 let client = self.client.clone();
2723
2724 cx.spawn(|this, mut cx| async move {
2725 let mut project_transaction = ProjectTransaction::default();
2726
2727 if let Some((project_id, remote_buffers)) = remote_buffers {
2728 let response = client
2729 .request(proto::ReloadBuffers {
2730 project_id,
2731 buffer_ids: remote_buffers
2732 .iter()
2733 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
2734 .collect(),
2735 })
2736 .await?
2737 .transaction
2738 .ok_or_else(|| anyhow!("missing transaction"))?;
2739 project_transaction = this
2740 .update(&mut cx, |this, cx| {
2741 this.deserialize_project_transaction(response, push_to_history, cx)
2742 })
2743 .await?;
2744 }
2745
2746 for buffer in local_buffers {
2747 let transaction = buffer
2748 .update(&mut cx, |buffer, cx| buffer.reload(cx))
2749 .await?;
2750 buffer.update(&mut cx, |buffer, cx| {
2751 if let Some(transaction) = transaction {
2752 if !push_to_history {
2753 buffer.forget_transaction(transaction.id);
2754 }
2755 project_transaction.0.insert(cx.handle(), transaction);
2756 }
2757 });
2758 }
2759
2760 Ok(project_transaction)
2761 })
2762 }
2763
2764 pub fn format(
2765 &self,
2766 buffers: HashSet<ModelHandle<Buffer>>,
2767 push_to_history: bool,
2768 trigger: FormatTrigger,
2769 cx: &mut ModelContext<Project>,
2770 ) -> Task<Result<ProjectTransaction>> {
2771 let mut local_buffers = Vec::new();
2772 let mut remote_buffers = None;
2773 for buffer_handle in buffers {
2774 let buffer = buffer_handle.read(cx);
2775 if let Some(file) = File::from_dyn(buffer.file()) {
2776 if let Some(buffer_abs_path) = file.as_local().map(|f| f.abs_path(cx)) {
2777 if let Some((_, server)) = self.language_server_for_buffer(buffer, cx) {
2778 local_buffers.push((buffer_handle, buffer_abs_path, server.clone()));
2779 }
2780 } else {
2781 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
2782 }
2783 } else {
2784 return Task::ready(Ok(Default::default()));
2785 }
2786 }
2787
2788 let remote_buffers = self.remote_id().zip(remote_buffers);
2789 let client = self.client.clone();
2790
2791 cx.spawn(|this, mut cx| async move {
2792 let mut project_transaction = ProjectTransaction::default();
2793
2794 if let Some((project_id, remote_buffers)) = remote_buffers {
2795 let response = client
2796 .request(proto::FormatBuffers {
2797 project_id,
2798 trigger: trigger as i32,
2799 buffer_ids: remote_buffers
2800 .iter()
2801 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
2802 .collect(),
2803 })
2804 .await?
2805 .transaction
2806 .ok_or_else(|| anyhow!("missing transaction"))?;
2807 project_transaction = this
2808 .update(&mut cx, |this, cx| {
2809 this.deserialize_project_transaction(response, push_to_history, cx)
2810 })
2811 .await?;
2812 }
2813
2814 // Do not allow multiple concurrent formatting requests for the
2815 // same buffer.
2816 this.update(&mut cx, |this, _| {
2817 local_buffers
2818 .retain(|(buffer, _, _)| this.buffers_being_formatted.insert(buffer.id()));
2819 });
2820 let _cleanup = defer({
2821 let this = this.clone();
2822 let mut cx = cx.clone();
2823 let local_buffers = &local_buffers;
2824 move || {
2825 this.update(&mut cx, |this, _| {
2826 for (buffer, _, _) in local_buffers {
2827 this.buffers_being_formatted.remove(&buffer.id());
2828 }
2829 });
2830 }
2831 });
2832
2833 for (buffer, buffer_abs_path, language_server) in &local_buffers {
2834 let (format_on_save, formatter, tab_size) = buffer.read_with(&cx, |buffer, cx| {
2835 let settings = cx.global::<Settings>();
2836 let language_name = buffer.language().map(|language| language.name());
2837 (
2838 settings.format_on_save(language_name.as_deref()),
2839 settings.formatter(language_name.as_deref()),
2840 settings.tab_size(language_name.as_deref()),
2841 )
2842 });
2843
2844 let transaction = match (formatter, format_on_save) {
2845 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => continue,
2846
2847 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
2848 | (_, FormatOnSave::LanguageServer) => Self::format_via_lsp(
2849 &this,
2850 &buffer,
2851 &buffer_abs_path,
2852 &language_server,
2853 tab_size,
2854 &mut cx,
2855 )
2856 .await
2857 .context("failed to format via language server")?,
2858
2859 (
2860 Formatter::External { command, arguments },
2861 FormatOnSave::On | FormatOnSave::Off,
2862 )
2863 | (_, FormatOnSave::External { command, arguments }) => {
2864 Self::format_via_external_command(
2865 &buffer,
2866 &buffer_abs_path,
2867 &command,
2868 &arguments,
2869 &mut cx,
2870 )
2871 .await
2872 .context(format!(
2873 "failed to format via external command {:?}",
2874 command
2875 ))?
2876 }
2877 };
2878
2879 if let Some(transaction) = transaction {
2880 if !push_to_history {
2881 buffer.update(&mut cx, |buffer, _| {
2882 buffer.forget_transaction(transaction.id)
2883 });
2884 }
2885 project_transaction.0.insert(buffer.clone(), transaction);
2886 }
2887 }
2888
2889 Ok(project_transaction)
2890 })
2891 }
2892
2893 async fn format_via_lsp(
2894 this: &ModelHandle<Self>,
2895 buffer: &ModelHandle<Buffer>,
2896 abs_path: &Path,
2897 language_server: &Arc<LanguageServer>,
2898 tab_size: NonZeroU32,
2899 cx: &mut AsyncAppContext,
2900 ) -> Result<Option<Transaction>> {
2901 let text_document =
2902 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(abs_path).unwrap());
2903 let capabilities = &language_server.capabilities();
2904 let lsp_edits = if capabilities
2905 .document_formatting_provider
2906 .as_ref()
2907 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
2908 {
2909 language_server
2910 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
2911 text_document,
2912 options: lsp::FormattingOptions {
2913 tab_size: tab_size.into(),
2914 insert_spaces: true,
2915 insert_final_newline: Some(true),
2916 ..Default::default()
2917 },
2918 work_done_progress_params: Default::default(),
2919 })
2920 .await?
2921 } else if capabilities
2922 .document_range_formatting_provider
2923 .as_ref()
2924 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
2925 {
2926 let buffer_start = lsp::Position::new(0, 0);
2927 let buffer_end =
2928 buffer.read_with(cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
2929 language_server
2930 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
2931 text_document,
2932 range: lsp::Range::new(buffer_start, buffer_end),
2933 options: lsp::FormattingOptions {
2934 tab_size: tab_size.into(),
2935 insert_spaces: true,
2936 insert_final_newline: Some(true),
2937 ..Default::default()
2938 },
2939 work_done_progress_params: Default::default(),
2940 })
2941 .await?
2942 } else {
2943 None
2944 };
2945
2946 if let Some(lsp_edits) = lsp_edits {
2947 let edits = this
2948 .update(cx, |this, cx| {
2949 this.edits_from_lsp(buffer, lsp_edits, None, cx)
2950 })
2951 .await?;
2952 buffer.update(cx, |buffer, cx| {
2953 buffer.finalize_last_transaction();
2954 buffer.start_transaction();
2955 for (range, text) in edits {
2956 buffer.edit([(range, text)], None, cx);
2957 }
2958 if buffer.end_transaction(cx).is_some() {
2959 let transaction = buffer.finalize_last_transaction().unwrap().clone();
2960 Ok(Some(transaction))
2961 } else {
2962 Ok(None)
2963 }
2964 })
2965 } else {
2966 Ok(None)
2967 }
2968 }
2969
2970 async fn format_via_external_command(
2971 buffer: &ModelHandle<Buffer>,
2972 buffer_abs_path: &Path,
2973 command: &str,
2974 arguments: &[String],
2975 cx: &mut AsyncAppContext,
2976 ) -> Result<Option<Transaction>> {
2977 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
2978 let file = File::from_dyn(buffer.file())?;
2979 let worktree = file.worktree.read(cx).as_local()?;
2980 let mut worktree_path = worktree.abs_path().to_path_buf();
2981 if worktree.root_entry()?.is_file() {
2982 worktree_path.pop();
2983 }
2984 Some(worktree_path)
2985 });
2986
2987 if let Some(working_dir_path) = working_dir_path {
2988 let mut child =
2989 smol::process::Command::new(command)
2990 .args(arguments.iter().map(|arg| {
2991 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
2992 }))
2993 .current_dir(&working_dir_path)
2994 .stdin(smol::process::Stdio::piped())
2995 .stdout(smol::process::Stdio::piped())
2996 .stderr(smol::process::Stdio::piped())
2997 .spawn()?;
2998 let stdin = child
2999 .stdin
3000 .as_mut()
3001 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
3002 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
3003 for chunk in text.chunks() {
3004 stdin.write_all(chunk.as_bytes()).await?;
3005 }
3006 stdin.flush().await?;
3007
3008 let output = child.output().await?;
3009 if !output.status.success() {
3010 return Err(anyhow!(
3011 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
3012 output.status.code(),
3013 String::from_utf8_lossy(&output.stdout),
3014 String::from_utf8_lossy(&output.stderr),
3015 ));
3016 }
3017
3018 let stdout = String::from_utf8(output.stdout)?;
3019 let diff = buffer
3020 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
3021 .await;
3022 Ok(buffer.update(cx, |buffer, cx| buffer.apply_diff(diff, cx).cloned()))
3023 } else {
3024 Ok(None)
3025 }
3026 }
3027
3028 pub fn definition<T: ToPointUtf16>(
3029 &self,
3030 buffer: &ModelHandle<Buffer>,
3031 position: T,
3032 cx: &mut ModelContext<Self>,
3033 ) -> Task<Result<Vec<LocationLink>>> {
3034 let position = position.to_point_utf16(buffer.read(cx));
3035 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
3036 }
3037
3038 pub fn type_definition<T: ToPointUtf16>(
3039 &self,
3040 buffer: &ModelHandle<Buffer>,
3041 position: T,
3042 cx: &mut ModelContext<Self>,
3043 ) -> Task<Result<Vec<LocationLink>>> {
3044 let position = position.to_point_utf16(buffer.read(cx));
3045 self.request_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
3046 }
3047
3048 pub fn references<T: ToPointUtf16>(
3049 &self,
3050 buffer: &ModelHandle<Buffer>,
3051 position: T,
3052 cx: &mut ModelContext<Self>,
3053 ) -> Task<Result<Vec<Location>>> {
3054 let position = position.to_point_utf16(buffer.read(cx));
3055 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
3056 }
3057
3058 pub fn document_highlights<T: ToPointUtf16>(
3059 &self,
3060 buffer: &ModelHandle<Buffer>,
3061 position: T,
3062 cx: &mut ModelContext<Self>,
3063 ) -> Task<Result<Vec<DocumentHighlight>>> {
3064 let position = position.to_point_utf16(buffer.read(cx));
3065 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
3066 }
3067
3068 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
3069 if self.is_local() {
3070 let mut requests = Vec::new();
3071 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
3072 let worktree_id = *worktree_id;
3073 if let Some(worktree) = self
3074 .worktree_for_id(worktree_id, cx)
3075 .and_then(|worktree| worktree.read(cx).as_local())
3076 {
3077 if let Some(LanguageServerState::Running {
3078 adapter,
3079 language,
3080 server,
3081 }) = self.language_servers.get(server_id)
3082 {
3083 let adapter = adapter.clone();
3084 let language = language.clone();
3085 let worktree_abs_path = worktree.abs_path().clone();
3086 requests.push(
3087 server
3088 .request::<lsp::request::WorkspaceSymbol>(
3089 lsp::WorkspaceSymbolParams {
3090 query: query.to_string(),
3091 ..Default::default()
3092 },
3093 )
3094 .log_err()
3095 .map(move |response| {
3096 (
3097 adapter,
3098 language,
3099 worktree_id,
3100 worktree_abs_path,
3101 response.unwrap_or_default(),
3102 )
3103 }),
3104 );
3105 }
3106 }
3107 }
3108
3109 cx.spawn_weak(|this, cx| async move {
3110 let responses = futures::future::join_all(requests).await;
3111 let this = if let Some(this) = this.upgrade(&cx) {
3112 this
3113 } else {
3114 return Ok(Default::default());
3115 };
3116 let symbols = this.read_with(&cx, |this, cx| {
3117 let mut symbols = Vec::new();
3118 for (
3119 adapter,
3120 adapter_language,
3121 source_worktree_id,
3122 worktree_abs_path,
3123 response,
3124 ) in responses
3125 {
3126 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3127 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3128 let mut worktree_id = source_worktree_id;
3129 let path;
3130 if let Some((worktree, rel_path)) =
3131 this.find_local_worktree(&abs_path, cx)
3132 {
3133 worktree_id = worktree.read(cx).id();
3134 path = rel_path;
3135 } else {
3136 path = relativize_path(&worktree_abs_path, &abs_path);
3137 }
3138
3139 let project_path = ProjectPath {
3140 worktree_id,
3141 path: path.into(),
3142 };
3143 let signature = this.symbol_signature(&project_path);
3144 let language = this
3145 .languages
3146 .select_language(&project_path.path)
3147 .unwrap_or(adapter_language.clone());
3148 let language_server_name = adapter.name.clone();
3149 Some(async move {
3150 let label = language
3151 .label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3152 .await;
3153
3154 Symbol {
3155 language_server_name,
3156 source_worktree_id,
3157 path: project_path,
3158 label: label.unwrap_or_else(|| {
3159 CodeLabel::plain(lsp_symbol.name.clone(), None)
3160 }),
3161 kind: lsp_symbol.kind,
3162 name: lsp_symbol.name,
3163 range: range_from_lsp(lsp_symbol.location.range),
3164 signature,
3165 }
3166 })
3167 }));
3168 }
3169 symbols
3170 });
3171 Ok(futures::future::join_all(symbols).await)
3172 })
3173 } else if let Some(project_id) = self.remote_id() {
3174 let request = self.client.request(proto::GetProjectSymbols {
3175 project_id,
3176 query: query.to_string(),
3177 });
3178 cx.spawn_weak(|this, cx| async move {
3179 let response = request.await?;
3180 let mut symbols = Vec::new();
3181 if let Some(this) = this.upgrade(&cx) {
3182 let new_symbols = this.read_with(&cx, |this, _| {
3183 response
3184 .symbols
3185 .into_iter()
3186 .map(|symbol| this.deserialize_symbol(symbol))
3187 .collect::<Vec<_>>()
3188 });
3189 symbols = futures::future::join_all(new_symbols)
3190 .await
3191 .into_iter()
3192 .filter_map(|symbol| symbol.log_err())
3193 .collect::<Vec<_>>();
3194 }
3195 Ok(symbols)
3196 })
3197 } else {
3198 Task::ready(Ok(Default::default()))
3199 }
3200 }
3201
3202 pub fn open_buffer_for_symbol(
3203 &mut self,
3204 symbol: &Symbol,
3205 cx: &mut ModelContext<Self>,
3206 ) -> Task<Result<ModelHandle<Buffer>>> {
3207 if self.is_local() {
3208 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
3209 symbol.source_worktree_id,
3210 symbol.language_server_name.clone(),
3211 )) {
3212 *id
3213 } else {
3214 return Task::ready(Err(anyhow!(
3215 "language server for worktree and language not found"
3216 )));
3217 };
3218
3219 let worktree_abs_path = if let Some(worktree_abs_path) = self
3220 .worktree_for_id(symbol.path.worktree_id, cx)
3221 .and_then(|worktree| worktree.read(cx).as_local())
3222 .map(|local_worktree| local_worktree.abs_path())
3223 {
3224 worktree_abs_path
3225 } else {
3226 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3227 };
3228 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
3229 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3230 uri
3231 } else {
3232 return Task::ready(Err(anyhow!("invalid symbol path")));
3233 };
3234
3235 self.open_local_buffer_via_lsp(
3236 symbol_uri,
3237 language_server_id,
3238 symbol.language_server_name.clone(),
3239 cx,
3240 )
3241 } else if let Some(project_id) = self.remote_id() {
3242 let request = self.client.request(proto::OpenBufferForSymbol {
3243 project_id,
3244 symbol: Some(serialize_symbol(symbol)),
3245 });
3246 cx.spawn(|this, mut cx| async move {
3247 let response = request.await?;
3248 this.update(&mut cx, |this, cx| {
3249 this.wait_for_buffer(response.buffer_id, cx)
3250 })
3251 .await
3252 })
3253 } else {
3254 Task::ready(Err(anyhow!("project does not have a remote id")))
3255 }
3256 }
3257
3258 pub fn hover<T: ToPointUtf16>(
3259 &self,
3260 buffer: &ModelHandle<Buffer>,
3261 position: T,
3262 cx: &mut ModelContext<Self>,
3263 ) -> Task<Result<Option<Hover>>> {
3264 let position = position.to_point_utf16(buffer.read(cx));
3265 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3266 }
3267
3268 pub fn completions<T: ToPointUtf16>(
3269 &self,
3270 source_buffer_handle: &ModelHandle<Buffer>,
3271 position: T,
3272 cx: &mut ModelContext<Self>,
3273 ) -> Task<Result<Vec<Completion>>> {
3274 let source_buffer_handle = source_buffer_handle.clone();
3275 let source_buffer = source_buffer_handle.read(cx);
3276 let buffer_id = source_buffer.remote_id();
3277 let language = source_buffer.language().cloned();
3278 let worktree;
3279 let buffer_abs_path;
3280 if let Some(file) = File::from_dyn(source_buffer.file()) {
3281 worktree = file.worktree.clone();
3282 buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3283 } else {
3284 return Task::ready(Ok(Default::default()));
3285 };
3286
3287 let position = position.to_point_utf16(source_buffer);
3288 let anchor = source_buffer.anchor_after(position);
3289
3290 if worktree.read(cx).as_local().is_some() {
3291 let buffer_abs_path = buffer_abs_path.unwrap();
3292 let lang_server =
3293 if let Some((_, server)) = self.language_server_for_buffer(source_buffer, cx) {
3294 server.clone()
3295 } else {
3296 return Task::ready(Ok(Default::default()));
3297 };
3298
3299 cx.spawn(|_, cx| async move {
3300 let completions = lang_server
3301 .request::<lsp::request::Completion>(lsp::CompletionParams {
3302 text_document_position: lsp::TextDocumentPositionParams::new(
3303 lsp::TextDocumentIdentifier::new(
3304 lsp::Url::from_file_path(buffer_abs_path).unwrap(),
3305 ),
3306 point_to_lsp(position),
3307 ),
3308 context: Default::default(),
3309 work_done_progress_params: Default::default(),
3310 partial_result_params: Default::default(),
3311 })
3312 .await
3313 .context("lsp completion request failed")?;
3314
3315 let completions = if let Some(completions) = completions {
3316 match completions {
3317 lsp::CompletionResponse::Array(completions) => completions,
3318 lsp::CompletionResponse::List(list) => list.items,
3319 }
3320 } else {
3321 Default::default()
3322 };
3323
3324 let completions = source_buffer_handle.read_with(&cx, |this, _| {
3325 let snapshot = this.snapshot();
3326 let clipped_position = this.clip_point_utf16(position, Bias::Left);
3327 let mut range_for_token = None;
3328 completions.into_iter().filter_map(move |lsp_completion| {
3329 // For now, we can only handle additional edits if they are returned
3330 // when resolving the completion, not if they are present initially.
3331 if lsp_completion
3332 .additional_text_edits
3333 .as_ref()
3334 .map_or(false, |edits| !edits.is_empty())
3335 {
3336 return None;
3337 }
3338
3339 let (old_range, mut new_text) = match lsp_completion.text_edit.as_ref() {
3340 // If the language server provides a range to overwrite, then
3341 // check that the range is valid.
3342 Some(lsp::CompletionTextEdit::Edit(edit)) => {
3343 let range = range_from_lsp(edit.range);
3344 let start = snapshot.clip_point_utf16(range.start, Bias::Left);
3345 let end = snapshot.clip_point_utf16(range.end, Bias::Left);
3346 if start != range.start || end != range.end {
3347 log::info!("completion out of expected range");
3348 return None;
3349 }
3350 (
3351 snapshot.anchor_before(start)..snapshot.anchor_after(end),
3352 edit.new_text.clone(),
3353 )
3354 }
3355 // If the language server does not provide a range, then infer
3356 // the range based on the syntax tree.
3357 None => {
3358 if position != clipped_position {
3359 log::info!("completion out of expected range");
3360 return None;
3361 }
3362 let Range { start, end } = range_for_token
3363 .get_or_insert_with(|| {
3364 let offset = position.to_offset(&snapshot);
3365 let (range, kind) = snapshot.surrounding_word(offset);
3366 if kind == Some(CharKind::Word) {
3367 range
3368 } else {
3369 offset..offset
3370 }
3371 })
3372 .clone();
3373 let text = lsp_completion
3374 .insert_text
3375 .as_ref()
3376 .unwrap_or(&lsp_completion.label)
3377 .clone();
3378 (
3379 snapshot.anchor_before(start)..snapshot.anchor_after(end),
3380 text,
3381 )
3382 }
3383 Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
3384 log::info!("unsupported insert/replace completion");
3385 return None;
3386 }
3387 };
3388
3389 LineEnding::normalize(&mut new_text);
3390 let language = language.clone();
3391 Some(async move {
3392 let label = if let Some(language) = language {
3393 language.label_for_completion(&lsp_completion).await
3394 } else {
3395 None
3396 };
3397 Completion {
3398 old_range,
3399 new_text,
3400 label: label.unwrap_or_else(|| {
3401 CodeLabel::plain(
3402 lsp_completion.label.clone(),
3403 lsp_completion.filter_text.as_deref(),
3404 )
3405 }),
3406 lsp_completion,
3407 }
3408 })
3409 })
3410 });
3411
3412 Ok(futures::future::join_all(completions).await)
3413 })
3414 } else if let Some(project_id) = self.remote_id() {
3415 let rpc = self.client.clone();
3416 let message = proto::GetCompletions {
3417 project_id,
3418 buffer_id,
3419 position: Some(language::proto::serialize_anchor(&anchor)),
3420 version: serialize_version(&source_buffer.version()),
3421 };
3422 cx.spawn_weak(|_, mut cx| async move {
3423 let response = rpc.request(message).await?;
3424
3425 source_buffer_handle
3426 .update(&mut cx, |buffer, _| {
3427 buffer.wait_for_version(deserialize_version(response.version))
3428 })
3429 .await;
3430
3431 let completions = response.completions.into_iter().map(|completion| {
3432 language::proto::deserialize_completion(completion, language.clone())
3433 });
3434 futures::future::try_join_all(completions).await
3435 })
3436 } else {
3437 Task::ready(Ok(Default::default()))
3438 }
3439 }
3440
3441 pub fn apply_additional_edits_for_completion(
3442 &self,
3443 buffer_handle: ModelHandle<Buffer>,
3444 completion: Completion,
3445 push_to_history: bool,
3446 cx: &mut ModelContext<Self>,
3447 ) -> Task<Result<Option<Transaction>>> {
3448 let buffer = buffer_handle.read(cx);
3449 let buffer_id = buffer.remote_id();
3450
3451 if self.is_local() {
3452 let lang_server = if let Some((_, server)) = self.language_server_for_buffer(buffer, cx)
3453 {
3454 server.clone()
3455 } else {
3456 return Task::ready(Ok(Default::default()));
3457 };
3458
3459 cx.spawn(|this, mut cx| async move {
3460 let resolved_completion = lang_server
3461 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3462 .await?;
3463 if let Some(edits) = resolved_completion.additional_text_edits {
3464 let edits = this
3465 .update(&mut cx, |this, cx| {
3466 this.edits_from_lsp(&buffer_handle, edits, None, cx)
3467 })
3468 .await?;
3469 buffer_handle.update(&mut cx, |buffer, cx| {
3470 buffer.finalize_last_transaction();
3471 buffer.start_transaction();
3472 for (range, text) in edits {
3473 buffer.edit([(range, text)], None, cx);
3474 }
3475 let transaction = if buffer.end_transaction(cx).is_some() {
3476 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3477 if !push_to_history {
3478 buffer.forget_transaction(transaction.id);
3479 }
3480 Some(transaction)
3481 } else {
3482 None
3483 };
3484 Ok(transaction)
3485 })
3486 } else {
3487 Ok(None)
3488 }
3489 })
3490 } else if let Some(project_id) = self.remote_id() {
3491 let client = self.client.clone();
3492 cx.spawn(|_, mut cx| async move {
3493 let response = client
3494 .request(proto::ApplyCompletionAdditionalEdits {
3495 project_id,
3496 buffer_id,
3497 completion: Some(language::proto::serialize_completion(&completion)),
3498 })
3499 .await?;
3500
3501 if let Some(transaction) = response.transaction {
3502 let transaction = language::proto::deserialize_transaction(transaction)?;
3503 buffer_handle
3504 .update(&mut cx, |buffer, _| {
3505 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
3506 })
3507 .await;
3508 if push_to_history {
3509 buffer_handle.update(&mut cx, |buffer, _| {
3510 buffer.push_transaction(transaction.clone(), Instant::now());
3511 });
3512 }
3513 Ok(Some(transaction))
3514 } else {
3515 Ok(None)
3516 }
3517 })
3518 } else {
3519 Task::ready(Err(anyhow!("project does not have a remote id")))
3520 }
3521 }
3522
3523 pub fn code_actions<T: Clone + ToOffset>(
3524 &self,
3525 buffer_handle: &ModelHandle<Buffer>,
3526 range: Range<T>,
3527 cx: &mut ModelContext<Self>,
3528 ) -> Task<Result<Vec<CodeAction>>> {
3529 let buffer_handle = buffer_handle.clone();
3530 let buffer = buffer_handle.read(cx);
3531 let snapshot = buffer.snapshot();
3532 let relevant_diagnostics = snapshot
3533 .diagnostics_in_range::<usize, usize>(range.to_offset(&snapshot), false)
3534 .map(|entry| entry.to_lsp_diagnostic_stub())
3535 .collect();
3536 let buffer_id = buffer.remote_id();
3537 let worktree;
3538 let buffer_abs_path;
3539 if let Some(file) = File::from_dyn(buffer.file()) {
3540 worktree = file.worktree.clone();
3541 buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3542 } else {
3543 return Task::ready(Ok(Default::default()));
3544 };
3545 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3546
3547 if worktree.read(cx).as_local().is_some() {
3548 let buffer_abs_path = buffer_abs_path.unwrap();
3549 let lang_server = if let Some((_, server)) = self.language_server_for_buffer(buffer, cx)
3550 {
3551 server.clone()
3552 } else {
3553 return Task::ready(Ok(Default::default()));
3554 };
3555
3556 let lsp_range = range_to_lsp(range.to_point_utf16(buffer));
3557 cx.foreground().spawn(async move {
3558 if lang_server.capabilities().code_action_provider.is_none() {
3559 return Ok(Default::default());
3560 }
3561
3562 Ok(lang_server
3563 .request::<lsp::request::CodeActionRequest>(lsp::CodeActionParams {
3564 text_document: lsp::TextDocumentIdentifier::new(
3565 lsp::Url::from_file_path(buffer_abs_path).unwrap(),
3566 ),
3567 range: lsp_range,
3568 work_done_progress_params: Default::default(),
3569 partial_result_params: Default::default(),
3570 context: lsp::CodeActionContext {
3571 diagnostics: relevant_diagnostics,
3572 only: Some(vec![
3573 lsp::CodeActionKind::QUICKFIX,
3574 lsp::CodeActionKind::REFACTOR,
3575 lsp::CodeActionKind::REFACTOR_EXTRACT,
3576 lsp::CodeActionKind::SOURCE,
3577 ]),
3578 },
3579 })
3580 .await?
3581 .unwrap_or_default()
3582 .into_iter()
3583 .filter_map(|entry| {
3584 if let lsp::CodeActionOrCommand::CodeAction(lsp_action) = entry {
3585 Some(CodeAction {
3586 range: range.clone(),
3587 lsp_action,
3588 })
3589 } else {
3590 None
3591 }
3592 })
3593 .collect())
3594 })
3595 } else if let Some(project_id) = self.remote_id() {
3596 let rpc = self.client.clone();
3597 let version = buffer.version();
3598 cx.spawn_weak(|_, mut cx| async move {
3599 let response = rpc
3600 .request(proto::GetCodeActions {
3601 project_id,
3602 buffer_id,
3603 start: Some(language::proto::serialize_anchor(&range.start)),
3604 end: Some(language::proto::serialize_anchor(&range.end)),
3605 version: serialize_version(&version),
3606 })
3607 .await?;
3608
3609 buffer_handle
3610 .update(&mut cx, |buffer, _| {
3611 buffer.wait_for_version(deserialize_version(response.version))
3612 })
3613 .await;
3614
3615 response
3616 .actions
3617 .into_iter()
3618 .map(language::proto::deserialize_code_action)
3619 .collect()
3620 })
3621 } else {
3622 Task::ready(Ok(Default::default()))
3623 }
3624 }
3625
3626 pub fn apply_code_action(
3627 &self,
3628 buffer_handle: ModelHandle<Buffer>,
3629 mut action: CodeAction,
3630 push_to_history: bool,
3631 cx: &mut ModelContext<Self>,
3632 ) -> Task<Result<ProjectTransaction>> {
3633 if self.is_local() {
3634 let buffer = buffer_handle.read(cx);
3635 let (lsp_adapter, lang_server) =
3636 if let Some((adapter, server)) = self.language_server_for_buffer(buffer, cx) {
3637 (adapter.clone(), server.clone())
3638 } else {
3639 return Task::ready(Ok(Default::default()));
3640 };
3641 let range = action.range.to_point_utf16(buffer);
3642
3643 cx.spawn(|this, mut cx| async move {
3644 if let Some(lsp_range) = action
3645 .lsp_action
3646 .data
3647 .as_mut()
3648 .and_then(|d| d.get_mut("codeActionParams"))
3649 .and_then(|d| d.get_mut("range"))
3650 {
3651 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
3652 action.lsp_action = lang_server
3653 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
3654 .await?;
3655 } else {
3656 let actions = this
3657 .update(&mut cx, |this, cx| {
3658 this.code_actions(&buffer_handle, action.range, cx)
3659 })
3660 .await?;
3661 action.lsp_action = actions
3662 .into_iter()
3663 .find(|a| a.lsp_action.title == action.lsp_action.title)
3664 .ok_or_else(|| anyhow!("code action is outdated"))?
3665 .lsp_action;
3666 }
3667
3668 if let Some(edit) = action.lsp_action.edit {
3669 if edit.changes.is_some() || edit.document_changes.is_some() {
3670 return Self::deserialize_workspace_edit(
3671 this,
3672 edit,
3673 push_to_history,
3674 lsp_adapter.clone(),
3675 lang_server.clone(),
3676 &mut cx,
3677 )
3678 .await;
3679 }
3680 }
3681
3682 if let Some(command) = action.lsp_action.command {
3683 this.update(&mut cx, |this, _| {
3684 this.last_workspace_edits_by_language_server
3685 .remove(&lang_server.server_id());
3686 });
3687 lang_server
3688 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
3689 command: command.command,
3690 arguments: command.arguments.unwrap_or_default(),
3691 ..Default::default()
3692 })
3693 .await?;
3694 return Ok(this.update(&mut cx, |this, _| {
3695 this.last_workspace_edits_by_language_server
3696 .remove(&lang_server.server_id())
3697 .unwrap_or_default()
3698 }));
3699 }
3700
3701 Ok(ProjectTransaction::default())
3702 })
3703 } else if let Some(project_id) = self.remote_id() {
3704 let client = self.client.clone();
3705 let request = proto::ApplyCodeAction {
3706 project_id,
3707 buffer_id: buffer_handle.read(cx).remote_id(),
3708 action: Some(language::proto::serialize_code_action(&action)),
3709 };
3710 cx.spawn(|this, mut cx| async move {
3711 let response = client
3712 .request(request)
3713 .await?
3714 .transaction
3715 .ok_or_else(|| anyhow!("missing transaction"))?;
3716 this.update(&mut cx, |this, cx| {
3717 this.deserialize_project_transaction(response, push_to_history, cx)
3718 })
3719 .await
3720 })
3721 } else {
3722 Task::ready(Err(anyhow!("project does not have a remote id")))
3723 }
3724 }
3725
3726 async fn deserialize_workspace_edit(
3727 this: ModelHandle<Self>,
3728 edit: lsp::WorkspaceEdit,
3729 push_to_history: bool,
3730 lsp_adapter: Arc<CachedLspAdapter>,
3731 language_server: Arc<LanguageServer>,
3732 cx: &mut AsyncAppContext,
3733 ) -> Result<ProjectTransaction> {
3734 let fs = this.read_with(cx, |this, _| this.fs.clone());
3735 let mut operations = Vec::new();
3736 if let Some(document_changes) = edit.document_changes {
3737 match document_changes {
3738 lsp::DocumentChanges::Edits(edits) => {
3739 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
3740 }
3741 lsp::DocumentChanges::Operations(ops) => operations = ops,
3742 }
3743 } else if let Some(changes) = edit.changes {
3744 operations.extend(changes.into_iter().map(|(uri, edits)| {
3745 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
3746 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
3747 uri,
3748 version: None,
3749 },
3750 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
3751 })
3752 }));
3753 }
3754
3755 let mut project_transaction = ProjectTransaction::default();
3756 for operation in operations {
3757 match operation {
3758 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
3759 let abs_path = op
3760 .uri
3761 .to_file_path()
3762 .map_err(|_| anyhow!("can't convert URI to path"))?;
3763
3764 if let Some(parent_path) = abs_path.parent() {
3765 fs.create_dir(parent_path).await?;
3766 }
3767 if abs_path.ends_with("/") {
3768 fs.create_dir(&abs_path).await?;
3769 } else {
3770 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
3771 .await?;
3772 }
3773 }
3774 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
3775 let source_abs_path = op
3776 .old_uri
3777 .to_file_path()
3778 .map_err(|_| anyhow!("can't convert URI to path"))?;
3779 let target_abs_path = op
3780 .new_uri
3781 .to_file_path()
3782 .map_err(|_| anyhow!("can't convert URI to path"))?;
3783 fs.rename(
3784 &source_abs_path,
3785 &target_abs_path,
3786 op.options.map(Into::into).unwrap_or_default(),
3787 )
3788 .await?;
3789 }
3790 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
3791 let abs_path = op
3792 .uri
3793 .to_file_path()
3794 .map_err(|_| anyhow!("can't convert URI to path"))?;
3795 let options = op.options.map(Into::into).unwrap_or_default();
3796 if abs_path.ends_with("/") {
3797 fs.remove_dir(&abs_path, options).await?;
3798 } else {
3799 fs.remove_file(&abs_path, options).await?;
3800 }
3801 }
3802 lsp::DocumentChangeOperation::Edit(op) => {
3803 let buffer_to_edit = this
3804 .update(cx, |this, cx| {
3805 this.open_local_buffer_via_lsp(
3806 op.text_document.uri,
3807 language_server.server_id(),
3808 lsp_adapter.name.clone(),
3809 cx,
3810 )
3811 })
3812 .await?;
3813
3814 let edits = this
3815 .update(cx, |this, cx| {
3816 let edits = op.edits.into_iter().map(|edit| match edit {
3817 lsp::OneOf::Left(edit) => edit,
3818 lsp::OneOf::Right(edit) => edit.text_edit,
3819 });
3820 this.edits_from_lsp(
3821 &buffer_to_edit,
3822 edits,
3823 op.text_document.version,
3824 cx,
3825 )
3826 })
3827 .await?;
3828
3829 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
3830 buffer.finalize_last_transaction();
3831 buffer.start_transaction();
3832 for (range, text) in edits {
3833 buffer.edit([(range, text)], None, cx);
3834 }
3835 let transaction = if buffer.end_transaction(cx).is_some() {
3836 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3837 if !push_to_history {
3838 buffer.forget_transaction(transaction.id);
3839 }
3840 Some(transaction)
3841 } else {
3842 None
3843 };
3844
3845 transaction
3846 });
3847 if let Some(transaction) = transaction {
3848 project_transaction.0.insert(buffer_to_edit, transaction);
3849 }
3850 }
3851 }
3852 }
3853
3854 Ok(project_transaction)
3855 }
3856
3857 pub fn prepare_rename<T: ToPointUtf16>(
3858 &self,
3859 buffer: ModelHandle<Buffer>,
3860 position: T,
3861 cx: &mut ModelContext<Self>,
3862 ) -> Task<Result<Option<Range<Anchor>>>> {
3863 let position = position.to_point_utf16(buffer.read(cx));
3864 self.request_lsp(buffer, PrepareRename { position }, cx)
3865 }
3866
3867 pub fn perform_rename<T: ToPointUtf16>(
3868 &self,
3869 buffer: ModelHandle<Buffer>,
3870 position: T,
3871 new_name: String,
3872 push_to_history: bool,
3873 cx: &mut ModelContext<Self>,
3874 ) -> Task<Result<ProjectTransaction>> {
3875 let position = position.to_point_utf16(buffer.read(cx));
3876 self.request_lsp(
3877 buffer,
3878 PerformRename {
3879 position,
3880 new_name,
3881 push_to_history,
3882 },
3883 cx,
3884 )
3885 }
3886
3887 #[allow(clippy::type_complexity)]
3888 pub fn search(
3889 &self,
3890 query: SearchQuery,
3891 cx: &mut ModelContext<Self>,
3892 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
3893 if self.is_local() {
3894 let snapshots = self
3895 .visible_worktrees(cx)
3896 .filter_map(|tree| {
3897 let tree = tree.read(cx).as_local()?;
3898 Some(tree.snapshot())
3899 })
3900 .collect::<Vec<_>>();
3901
3902 let background = cx.background().clone();
3903 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
3904 if path_count == 0 {
3905 return Task::ready(Ok(Default::default()));
3906 }
3907 let workers = background.num_cpus().min(path_count);
3908 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
3909 cx.background()
3910 .spawn({
3911 let fs = self.fs.clone();
3912 let background = cx.background().clone();
3913 let query = query.clone();
3914 async move {
3915 let fs = &fs;
3916 let query = &query;
3917 let matching_paths_tx = &matching_paths_tx;
3918 let paths_per_worker = (path_count + workers - 1) / workers;
3919 let snapshots = &snapshots;
3920 background
3921 .scoped(|scope| {
3922 for worker_ix in 0..workers {
3923 let worker_start_ix = worker_ix * paths_per_worker;
3924 let worker_end_ix = worker_start_ix + paths_per_worker;
3925 scope.spawn(async move {
3926 let mut snapshot_start_ix = 0;
3927 let mut abs_path = PathBuf::new();
3928 for snapshot in snapshots {
3929 let snapshot_end_ix =
3930 snapshot_start_ix + snapshot.visible_file_count();
3931 if worker_end_ix <= snapshot_start_ix {
3932 break;
3933 } else if worker_start_ix > snapshot_end_ix {
3934 snapshot_start_ix = snapshot_end_ix;
3935 continue;
3936 } else {
3937 let start_in_snapshot = worker_start_ix
3938 .saturating_sub(snapshot_start_ix);
3939 let end_in_snapshot =
3940 cmp::min(worker_end_ix, snapshot_end_ix)
3941 - snapshot_start_ix;
3942
3943 for entry in snapshot
3944 .files(false, start_in_snapshot)
3945 .take(end_in_snapshot - start_in_snapshot)
3946 {
3947 if matching_paths_tx.is_closed() {
3948 break;
3949 }
3950
3951 abs_path.clear();
3952 abs_path.push(&snapshot.abs_path());
3953 abs_path.push(&entry.path);
3954 let matches = if let Some(file) =
3955 fs.open_sync(&abs_path).await.log_err()
3956 {
3957 query.detect(file).unwrap_or(false)
3958 } else {
3959 false
3960 };
3961
3962 if matches {
3963 let project_path =
3964 (snapshot.id(), entry.path.clone());
3965 if matching_paths_tx
3966 .send(project_path)
3967 .await
3968 .is_err()
3969 {
3970 break;
3971 }
3972 }
3973 }
3974
3975 snapshot_start_ix = snapshot_end_ix;
3976 }
3977 }
3978 });
3979 }
3980 })
3981 .await;
3982 }
3983 })
3984 .detach();
3985
3986 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
3987 let open_buffers = self
3988 .opened_buffers
3989 .values()
3990 .filter_map(|b| b.upgrade(cx))
3991 .collect::<HashSet<_>>();
3992 cx.spawn(|this, cx| async move {
3993 for buffer in &open_buffers {
3994 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
3995 buffers_tx.send((buffer.clone(), snapshot)).await?;
3996 }
3997
3998 let open_buffers = Rc::new(RefCell::new(open_buffers));
3999 while let Some(project_path) = matching_paths_rx.next().await {
4000 if buffers_tx.is_closed() {
4001 break;
4002 }
4003
4004 let this = this.clone();
4005 let open_buffers = open_buffers.clone();
4006 let buffers_tx = buffers_tx.clone();
4007 cx.spawn(|mut cx| async move {
4008 if let Some(buffer) = this
4009 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
4010 .await
4011 .log_err()
4012 {
4013 if open_buffers.borrow_mut().insert(buffer.clone()) {
4014 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4015 buffers_tx.send((buffer, snapshot)).await?;
4016 }
4017 }
4018
4019 Ok::<_, anyhow::Error>(())
4020 })
4021 .detach();
4022 }
4023
4024 Ok::<_, anyhow::Error>(())
4025 })
4026 .detach_and_log_err(cx);
4027
4028 let background = cx.background().clone();
4029 cx.background().spawn(async move {
4030 let query = &query;
4031 let mut matched_buffers = Vec::new();
4032 for _ in 0..workers {
4033 matched_buffers.push(HashMap::default());
4034 }
4035 background
4036 .scoped(|scope| {
4037 for worker_matched_buffers in matched_buffers.iter_mut() {
4038 let mut buffers_rx = buffers_rx.clone();
4039 scope.spawn(async move {
4040 while let Some((buffer, snapshot)) = buffers_rx.next().await {
4041 let buffer_matches = query
4042 .search(snapshot.as_rope())
4043 .await
4044 .iter()
4045 .map(|range| {
4046 snapshot.anchor_before(range.start)
4047 ..snapshot.anchor_after(range.end)
4048 })
4049 .collect::<Vec<_>>();
4050 if !buffer_matches.is_empty() {
4051 worker_matched_buffers
4052 .insert(buffer.clone(), buffer_matches);
4053 }
4054 }
4055 });
4056 }
4057 })
4058 .await;
4059 Ok(matched_buffers.into_iter().flatten().collect())
4060 })
4061 } else if let Some(project_id) = self.remote_id() {
4062 let request = self.client.request(query.to_proto(project_id));
4063 cx.spawn(|this, mut cx| async move {
4064 let response = request.await?;
4065 let mut result = HashMap::default();
4066 for location in response.locations {
4067 let target_buffer = this
4068 .update(&mut cx, |this, cx| {
4069 this.wait_for_buffer(location.buffer_id, cx)
4070 })
4071 .await?;
4072 let start = location
4073 .start
4074 .and_then(deserialize_anchor)
4075 .ok_or_else(|| anyhow!("missing target start"))?;
4076 let end = location
4077 .end
4078 .and_then(deserialize_anchor)
4079 .ok_or_else(|| anyhow!("missing target end"))?;
4080 result
4081 .entry(target_buffer)
4082 .or_insert(Vec::new())
4083 .push(start..end)
4084 }
4085 Ok(result)
4086 })
4087 } else {
4088 Task::ready(Ok(Default::default()))
4089 }
4090 }
4091
4092 fn request_lsp<R: LspCommand>(
4093 &self,
4094 buffer_handle: ModelHandle<Buffer>,
4095 request: R,
4096 cx: &mut ModelContext<Self>,
4097 ) -> Task<Result<R::Response>>
4098 where
4099 <R::LspRequest as lsp::request::Request>::Result: Send,
4100 {
4101 let buffer = buffer_handle.read(cx);
4102 if self.is_local() {
4103 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
4104 if let Some((file, language_server)) = file.zip(
4105 self.language_server_for_buffer(buffer, cx)
4106 .map(|(_, server)| server.clone()),
4107 ) {
4108 let lsp_params = request.to_lsp(&file.abs_path(cx), cx);
4109 return cx.spawn(|this, cx| async move {
4110 if !request.check_capabilities(language_server.capabilities()) {
4111 return Ok(Default::default());
4112 }
4113
4114 let response = language_server
4115 .request::<R::LspRequest>(lsp_params)
4116 .await
4117 .context("lsp request failed")?;
4118 request
4119 .response_from_lsp(response, this, buffer_handle, cx)
4120 .await
4121 });
4122 }
4123 } else if let Some(project_id) = self.remote_id() {
4124 let rpc = self.client.clone();
4125 let message = request.to_proto(project_id, buffer);
4126 return cx.spawn(|this, cx| async move {
4127 let response = rpc.request(message).await?;
4128 request
4129 .response_from_proto(response, this, buffer_handle, cx)
4130 .await
4131 });
4132 }
4133 Task::ready(Ok(Default::default()))
4134 }
4135
4136 pub fn find_or_create_local_worktree(
4137 &mut self,
4138 abs_path: impl AsRef<Path>,
4139 visible: bool,
4140 cx: &mut ModelContext<Self>,
4141 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
4142 let abs_path = abs_path.as_ref();
4143 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4144 Task::ready(Ok((tree, relative_path)))
4145 } else {
4146 let worktree = self.create_local_worktree(abs_path, visible, cx);
4147 cx.foreground()
4148 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4149 }
4150 }
4151
4152 pub fn find_local_worktree(
4153 &self,
4154 abs_path: &Path,
4155 cx: &AppContext,
4156 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4157 for tree in &self.worktrees {
4158 if let Some(tree) = tree.upgrade(cx) {
4159 if let Some(relative_path) = tree
4160 .read(cx)
4161 .as_local()
4162 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4163 {
4164 return Some((tree.clone(), relative_path.into()));
4165 }
4166 }
4167 }
4168 None
4169 }
4170
4171 pub fn is_shared(&self) -> bool {
4172 match &self.client_state {
4173 Some(ProjectClientState::Local { .. }) => true,
4174 _ => false,
4175 }
4176 }
4177
4178 fn create_local_worktree(
4179 &mut self,
4180 abs_path: impl AsRef<Path>,
4181 visible: bool,
4182 cx: &mut ModelContext<Self>,
4183 ) -> Task<Result<ModelHandle<Worktree>>> {
4184 let fs = self.fs.clone();
4185 let client = self.client.clone();
4186 let next_entry_id = self.next_entry_id.clone();
4187 let path: Arc<Path> = abs_path.as_ref().into();
4188 let task = self
4189 .loading_local_worktrees
4190 .entry(path.clone())
4191 .or_insert_with(|| {
4192 cx.spawn(|project, mut cx| {
4193 async move {
4194 let worktree = Worktree::local(
4195 client.clone(),
4196 path.clone(),
4197 visible,
4198 fs,
4199 next_entry_id,
4200 &mut cx,
4201 )
4202 .await;
4203 project.update(&mut cx, |project, _| {
4204 project.loading_local_worktrees.remove(&path);
4205 });
4206 let worktree = worktree?;
4207
4208 let project_id = project.update(&mut cx, |project, cx| {
4209 project.add_worktree(&worktree, cx);
4210 project.remote_id()
4211 });
4212
4213 if let Some(project_id) = project_id {
4214 worktree
4215 .update(&mut cx, |worktree, cx| {
4216 worktree.as_local_mut().unwrap().share(project_id, cx)
4217 })
4218 .await
4219 .log_err();
4220 }
4221
4222 Ok(worktree)
4223 }
4224 .map_err(Arc::new)
4225 })
4226 .shared()
4227 })
4228 .clone();
4229 cx.foreground().spawn(async move {
4230 match task.await {
4231 Ok(worktree) => Ok(worktree),
4232 Err(err) => Err(anyhow!("{}", err)),
4233 }
4234 })
4235 }
4236
4237 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4238 self.worktrees.retain(|worktree| {
4239 if let Some(worktree) = worktree.upgrade(cx) {
4240 let id = worktree.read(cx).id();
4241 if id == id_to_remove {
4242 cx.emit(Event::WorktreeRemoved(id));
4243 false
4244 } else {
4245 true
4246 }
4247 } else {
4248 false
4249 }
4250 });
4251 self.metadata_changed(cx);
4252 cx.notify();
4253 }
4254
4255 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4256 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
4257 if worktree.read(cx).is_local() {
4258 cx.subscribe(worktree, |this, worktree, event, cx| match event {
4259 worktree::Event::UpdatedEntries => this.update_local_worktree_buffers(worktree, cx),
4260 worktree::Event::UpdatedGitRepositories(updated_repos) => {
4261 this.update_local_worktree_buffers_git_repos(worktree, updated_repos, cx)
4262 }
4263 })
4264 .detach();
4265 }
4266
4267 let push_strong_handle = {
4268 let worktree = worktree.read(cx);
4269 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4270 };
4271 if push_strong_handle {
4272 self.worktrees
4273 .push(WorktreeHandle::Strong(worktree.clone()));
4274 } else {
4275 self.worktrees
4276 .push(WorktreeHandle::Weak(worktree.downgrade()));
4277 }
4278
4279 self.metadata_changed(cx);
4280 cx.observe_release(worktree, |this, worktree, cx| {
4281 this.remove_worktree(worktree.id(), cx);
4282 cx.notify();
4283 })
4284 .detach();
4285
4286 cx.emit(Event::WorktreeAdded);
4287 cx.notify();
4288 }
4289
4290 fn update_local_worktree_buffers(
4291 &mut self,
4292 worktree_handle: ModelHandle<Worktree>,
4293 cx: &mut ModelContext<Self>,
4294 ) {
4295 let snapshot = worktree_handle.read(cx).snapshot();
4296 let mut buffers_to_delete = Vec::new();
4297 let mut renamed_buffers = Vec::new();
4298 for (buffer_id, buffer) in &self.opened_buffers {
4299 if let Some(buffer) = buffer.upgrade(cx) {
4300 buffer.update(cx, |buffer, cx| {
4301 if let Some(old_file) = File::from_dyn(buffer.file()) {
4302 if old_file.worktree != worktree_handle {
4303 return;
4304 }
4305
4306 let new_file = if let Some(entry) = snapshot.entry_for_id(old_file.entry_id)
4307 {
4308 File {
4309 is_local: true,
4310 entry_id: entry.id,
4311 mtime: entry.mtime,
4312 path: entry.path.clone(),
4313 worktree: worktree_handle.clone(),
4314 is_deleted: false,
4315 }
4316 } else if let Some(entry) =
4317 snapshot.entry_for_path(old_file.path().as_ref())
4318 {
4319 File {
4320 is_local: true,
4321 entry_id: entry.id,
4322 mtime: entry.mtime,
4323 path: entry.path.clone(),
4324 worktree: worktree_handle.clone(),
4325 is_deleted: false,
4326 }
4327 } else {
4328 File {
4329 is_local: true,
4330 entry_id: old_file.entry_id,
4331 path: old_file.path().clone(),
4332 mtime: old_file.mtime(),
4333 worktree: worktree_handle.clone(),
4334 is_deleted: true,
4335 }
4336 };
4337
4338 let old_path = old_file.abs_path(cx);
4339 if new_file.abs_path(cx) != old_path {
4340 renamed_buffers.push((cx.handle(), old_path));
4341 }
4342
4343 if let Some(project_id) = self.remote_id() {
4344 self.client
4345 .send(proto::UpdateBufferFile {
4346 project_id,
4347 buffer_id: *buffer_id as u64,
4348 file: Some(new_file.to_proto()),
4349 })
4350 .log_err();
4351 }
4352 buffer.file_updated(Arc::new(new_file), cx).detach();
4353 }
4354 });
4355 } else {
4356 buffers_to_delete.push(*buffer_id);
4357 }
4358 }
4359
4360 for buffer_id in buffers_to_delete {
4361 self.opened_buffers.remove(&buffer_id);
4362 }
4363
4364 for (buffer, old_path) in renamed_buffers {
4365 self.unregister_buffer_from_language_server(&buffer, old_path, cx);
4366 self.assign_language_to_buffer(&buffer, cx);
4367 self.register_buffer_with_language_server(&buffer, cx);
4368 }
4369 }
4370
4371 fn update_local_worktree_buffers_git_repos(
4372 &mut self,
4373 worktree: ModelHandle<Worktree>,
4374 repos: &[GitRepositoryEntry],
4375 cx: &mut ModelContext<Self>,
4376 ) {
4377 for (_, buffer) in &self.opened_buffers {
4378 if let Some(buffer) = buffer.upgrade(cx) {
4379 let file = match File::from_dyn(buffer.read(cx).file()) {
4380 Some(file) => file,
4381 None => continue,
4382 };
4383 if file.worktree != worktree {
4384 continue;
4385 }
4386
4387 let path = file.path().clone();
4388
4389 let repo = match repos.iter().find(|repo| repo.manages(&path)) {
4390 Some(repo) => repo.clone(),
4391 None => return,
4392 };
4393
4394 let relative_repo = match path.strip_prefix(repo.content_path) {
4395 Ok(relative_repo) => relative_repo.to_owned(),
4396 Err(_) => return,
4397 };
4398
4399 let remote_id = self.remote_id();
4400 let client = self.client.clone();
4401
4402 cx.spawn(|_, mut cx| async move {
4403 let diff_base = cx
4404 .background()
4405 .spawn(async move { repo.repo.lock().load_index_text(&relative_repo) })
4406 .await;
4407
4408 let buffer_id = buffer.update(&mut cx, |buffer, cx| {
4409 buffer.update_diff_base(diff_base.clone(), cx);
4410 buffer.remote_id()
4411 });
4412
4413 if let Some(project_id) = remote_id {
4414 client
4415 .send(proto::UpdateDiffBase {
4416 project_id,
4417 buffer_id: buffer_id as u64,
4418 diff_base,
4419 })
4420 .log_err();
4421 }
4422 })
4423 .detach();
4424 }
4425 }
4426 }
4427
4428 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
4429 let new_active_entry = entry.and_then(|project_path| {
4430 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
4431 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
4432 Some(entry.id)
4433 });
4434 if new_active_entry != self.active_entry {
4435 self.active_entry = new_active_entry;
4436 cx.emit(Event::ActiveEntryChanged(new_active_entry));
4437 }
4438 }
4439
4440 pub fn language_servers_running_disk_based_diagnostics(
4441 &self,
4442 ) -> impl Iterator<Item = usize> + '_ {
4443 self.language_server_statuses
4444 .iter()
4445 .filter_map(|(id, status)| {
4446 if status.has_pending_diagnostic_updates {
4447 Some(*id)
4448 } else {
4449 None
4450 }
4451 })
4452 }
4453
4454 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
4455 let mut summary = DiagnosticSummary::default();
4456 for (_, path_summary) in self.diagnostic_summaries(cx) {
4457 summary.error_count += path_summary.error_count;
4458 summary.warning_count += path_summary.warning_count;
4459 }
4460 summary
4461 }
4462
4463 pub fn diagnostic_summaries<'a>(
4464 &'a self,
4465 cx: &'a AppContext,
4466 ) -> impl Iterator<Item = (ProjectPath, DiagnosticSummary)> + 'a {
4467 self.visible_worktrees(cx).flat_map(move |worktree| {
4468 let worktree = worktree.read(cx);
4469 let worktree_id = worktree.id();
4470 worktree
4471 .diagnostic_summaries()
4472 .map(move |(path, summary)| (ProjectPath { worktree_id, path }, summary))
4473 })
4474 }
4475
4476 pub fn disk_based_diagnostics_started(
4477 &mut self,
4478 language_server_id: usize,
4479 cx: &mut ModelContext<Self>,
4480 ) {
4481 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
4482 }
4483
4484 pub fn disk_based_diagnostics_finished(
4485 &mut self,
4486 language_server_id: usize,
4487 cx: &mut ModelContext<Self>,
4488 ) {
4489 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
4490 }
4491
4492 pub fn active_entry(&self) -> Option<ProjectEntryId> {
4493 self.active_entry
4494 }
4495
4496 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
4497 self.worktree_for_id(path.worktree_id, cx)?
4498 .read(cx)
4499 .entry_for_path(&path.path)
4500 .cloned()
4501 }
4502
4503 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
4504 let worktree = self.worktree_for_entry(entry_id, cx)?;
4505 let worktree = worktree.read(cx);
4506 let worktree_id = worktree.id();
4507 let path = worktree.entry_for_id(entry_id)?.path.clone();
4508 Some(ProjectPath { worktree_id, path })
4509 }
4510
4511 // RPC message handlers
4512
4513 async fn handle_unshare_project(
4514 this: ModelHandle<Self>,
4515 _: TypedEnvelope<proto::UnshareProject>,
4516 _: Arc<Client>,
4517 mut cx: AsyncAppContext,
4518 ) -> Result<()> {
4519 this.update(&mut cx, |this, cx| {
4520 if this.is_local() {
4521 this.unshare(cx)?;
4522 } else {
4523 this.disconnected_from_host(cx);
4524 }
4525 Ok(())
4526 })
4527 }
4528
4529 async fn handle_add_collaborator(
4530 this: ModelHandle<Self>,
4531 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
4532 _: Arc<Client>,
4533 mut cx: AsyncAppContext,
4534 ) -> Result<()> {
4535 let collaborator = envelope
4536 .payload
4537 .collaborator
4538 .take()
4539 .ok_or_else(|| anyhow!("empty collaborator"))?;
4540
4541 let collaborator = Collaborator::from_proto(collaborator);
4542 this.update(&mut cx, |this, cx| {
4543 this.collaborators
4544 .insert(collaborator.peer_id, collaborator);
4545 cx.notify();
4546 });
4547
4548 Ok(())
4549 }
4550
4551 async fn handle_remove_collaborator(
4552 this: ModelHandle<Self>,
4553 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
4554 _: Arc<Client>,
4555 mut cx: AsyncAppContext,
4556 ) -> Result<()> {
4557 this.update(&mut cx, |this, cx| {
4558 let peer_id = PeerId(envelope.payload.peer_id);
4559 let replica_id = this
4560 .collaborators
4561 .remove(&peer_id)
4562 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
4563 .replica_id;
4564 for buffer in this.opened_buffers.values() {
4565 if let Some(buffer) = buffer.upgrade(cx) {
4566 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
4567 }
4568 }
4569 this.shared_buffers.remove(&peer_id);
4570
4571 cx.emit(Event::CollaboratorLeft(peer_id));
4572 cx.notify();
4573 Ok(())
4574 })
4575 }
4576
4577 async fn handle_update_project(
4578 this: ModelHandle<Self>,
4579 envelope: TypedEnvelope<proto::UpdateProject>,
4580 client: Arc<Client>,
4581 mut cx: AsyncAppContext,
4582 ) -> Result<()> {
4583 this.update(&mut cx, |this, cx| {
4584 let replica_id = this.replica_id();
4585 let remote_id = this.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
4586
4587 let mut old_worktrees_by_id = this
4588 .worktrees
4589 .drain(..)
4590 .filter_map(|worktree| {
4591 let worktree = worktree.upgrade(cx)?;
4592 Some((worktree.read(cx).id(), worktree))
4593 })
4594 .collect::<HashMap<_, _>>();
4595
4596 for worktree in envelope.payload.worktrees {
4597 if let Some(old_worktree) =
4598 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
4599 {
4600 this.worktrees.push(WorktreeHandle::Strong(old_worktree));
4601 } else {
4602 let worktree =
4603 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx);
4604 this.add_worktree(&worktree, cx);
4605 }
4606 }
4607
4608 this.metadata_changed(cx);
4609 for (id, _) in old_worktrees_by_id {
4610 cx.emit(Event::WorktreeRemoved(id));
4611 }
4612
4613 Ok(())
4614 })
4615 }
4616
4617 async fn handle_update_worktree(
4618 this: ModelHandle<Self>,
4619 envelope: TypedEnvelope<proto::UpdateWorktree>,
4620 _: Arc<Client>,
4621 mut cx: AsyncAppContext,
4622 ) -> Result<()> {
4623 this.update(&mut cx, |this, cx| {
4624 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4625 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4626 worktree.update(cx, |worktree, _| {
4627 let worktree = worktree.as_remote_mut().unwrap();
4628 worktree.update_from_remote(envelope.payload);
4629 });
4630 }
4631 Ok(())
4632 })
4633 }
4634
4635 async fn handle_create_project_entry(
4636 this: ModelHandle<Self>,
4637 envelope: TypedEnvelope<proto::CreateProjectEntry>,
4638 _: Arc<Client>,
4639 mut cx: AsyncAppContext,
4640 ) -> Result<proto::ProjectEntryResponse> {
4641 let worktree = this.update(&mut cx, |this, cx| {
4642 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4643 this.worktree_for_id(worktree_id, cx)
4644 .ok_or_else(|| anyhow!("worktree not found"))
4645 })?;
4646 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4647 let entry = worktree
4648 .update(&mut cx, |worktree, cx| {
4649 let worktree = worktree.as_local_mut().unwrap();
4650 let path = PathBuf::from(OsString::from_vec(envelope.payload.path));
4651 worktree.create_entry(path, envelope.payload.is_directory, cx)
4652 })
4653 .await?;
4654 Ok(proto::ProjectEntryResponse {
4655 entry: Some((&entry).into()),
4656 worktree_scan_id: worktree_scan_id as u64,
4657 })
4658 }
4659
4660 async fn handle_rename_project_entry(
4661 this: ModelHandle<Self>,
4662 envelope: TypedEnvelope<proto::RenameProjectEntry>,
4663 _: Arc<Client>,
4664 mut cx: AsyncAppContext,
4665 ) -> Result<proto::ProjectEntryResponse> {
4666 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4667 let worktree = this.read_with(&cx, |this, cx| {
4668 this.worktree_for_entry(entry_id, cx)
4669 .ok_or_else(|| anyhow!("worktree not found"))
4670 })?;
4671 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4672 let entry = worktree
4673 .update(&mut cx, |worktree, cx| {
4674 let new_path = PathBuf::from(OsString::from_vec(envelope.payload.new_path));
4675 worktree
4676 .as_local_mut()
4677 .unwrap()
4678 .rename_entry(entry_id, new_path, cx)
4679 .ok_or_else(|| anyhow!("invalid entry"))
4680 })?
4681 .await?;
4682 Ok(proto::ProjectEntryResponse {
4683 entry: Some((&entry).into()),
4684 worktree_scan_id: worktree_scan_id as u64,
4685 })
4686 }
4687
4688 async fn handle_copy_project_entry(
4689 this: ModelHandle<Self>,
4690 envelope: TypedEnvelope<proto::CopyProjectEntry>,
4691 _: Arc<Client>,
4692 mut cx: AsyncAppContext,
4693 ) -> Result<proto::ProjectEntryResponse> {
4694 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4695 let worktree = this.read_with(&cx, |this, cx| {
4696 this.worktree_for_entry(entry_id, cx)
4697 .ok_or_else(|| anyhow!("worktree not found"))
4698 })?;
4699 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4700 let entry = worktree
4701 .update(&mut cx, |worktree, cx| {
4702 let new_path = PathBuf::from(OsString::from_vec(envelope.payload.new_path));
4703 worktree
4704 .as_local_mut()
4705 .unwrap()
4706 .copy_entry(entry_id, new_path, cx)
4707 .ok_or_else(|| anyhow!("invalid entry"))
4708 })?
4709 .await?;
4710 Ok(proto::ProjectEntryResponse {
4711 entry: Some((&entry).into()),
4712 worktree_scan_id: worktree_scan_id as u64,
4713 })
4714 }
4715
4716 async fn handle_delete_project_entry(
4717 this: ModelHandle<Self>,
4718 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
4719 _: Arc<Client>,
4720 mut cx: AsyncAppContext,
4721 ) -> Result<proto::ProjectEntryResponse> {
4722 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4723 let worktree = this.read_with(&cx, |this, cx| {
4724 this.worktree_for_entry(entry_id, cx)
4725 .ok_or_else(|| anyhow!("worktree not found"))
4726 })?;
4727 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4728 worktree
4729 .update(&mut cx, |worktree, cx| {
4730 worktree
4731 .as_local_mut()
4732 .unwrap()
4733 .delete_entry(entry_id, cx)
4734 .ok_or_else(|| anyhow!("invalid entry"))
4735 })?
4736 .await?;
4737 Ok(proto::ProjectEntryResponse {
4738 entry: None,
4739 worktree_scan_id: worktree_scan_id as u64,
4740 })
4741 }
4742
4743 async fn handle_update_diagnostic_summary(
4744 this: ModelHandle<Self>,
4745 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
4746 _: Arc<Client>,
4747 mut cx: AsyncAppContext,
4748 ) -> Result<()> {
4749 this.update(&mut cx, |this, cx| {
4750 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4751 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4752 if let Some(summary) = envelope.payload.summary {
4753 let project_path = ProjectPath {
4754 worktree_id,
4755 path: Path::new(&summary.path).into(),
4756 };
4757 worktree.update(cx, |worktree, _| {
4758 worktree
4759 .as_remote_mut()
4760 .unwrap()
4761 .update_diagnostic_summary(project_path.path.clone(), &summary);
4762 });
4763 cx.emit(Event::DiagnosticsUpdated {
4764 language_server_id: summary.language_server_id as usize,
4765 path: project_path,
4766 });
4767 }
4768 }
4769 Ok(())
4770 })
4771 }
4772
4773 async fn handle_start_language_server(
4774 this: ModelHandle<Self>,
4775 envelope: TypedEnvelope<proto::StartLanguageServer>,
4776 _: Arc<Client>,
4777 mut cx: AsyncAppContext,
4778 ) -> Result<()> {
4779 let server = envelope
4780 .payload
4781 .server
4782 .ok_or_else(|| anyhow!("invalid server"))?;
4783 this.update(&mut cx, |this, cx| {
4784 this.language_server_statuses.insert(
4785 server.id as usize,
4786 LanguageServerStatus {
4787 name: server.name,
4788 pending_work: Default::default(),
4789 has_pending_diagnostic_updates: false,
4790 progress_tokens: Default::default(),
4791 },
4792 );
4793 cx.notify();
4794 });
4795 Ok(())
4796 }
4797
4798 async fn handle_update_language_server(
4799 this: ModelHandle<Self>,
4800 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
4801 _: Arc<Client>,
4802 mut cx: AsyncAppContext,
4803 ) -> Result<()> {
4804 let language_server_id = envelope.payload.language_server_id as usize;
4805 match envelope
4806 .payload
4807 .variant
4808 .ok_or_else(|| anyhow!("invalid variant"))?
4809 {
4810 proto::update_language_server::Variant::WorkStart(payload) => {
4811 this.update(&mut cx, |this, cx| {
4812 this.on_lsp_work_start(
4813 language_server_id,
4814 payload.token,
4815 LanguageServerProgress {
4816 message: payload.message,
4817 percentage: payload.percentage.map(|p| p as usize),
4818 last_update_at: Instant::now(),
4819 },
4820 cx,
4821 );
4822 })
4823 }
4824 proto::update_language_server::Variant::WorkProgress(payload) => {
4825 this.update(&mut cx, |this, cx| {
4826 this.on_lsp_work_progress(
4827 language_server_id,
4828 payload.token,
4829 LanguageServerProgress {
4830 message: payload.message,
4831 percentage: payload.percentage.map(|p| p as usize),
4832 last_update_at: Instant::now(),
4833 },
4834 cx,
4835 );
4836 })
4837 }
4838 proto::update_language_server::Variant::WorkEnd(payload) => {
4839 this.update(&mut cx, |this, cx| {
4840 this.on_lsp_work_end(language_server_id, payload.token, cx);
4841 })
4842 }
4843 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
4844 this.update(&mut cx, |this, cx| {
4845 this.disk_based_diagnostics_started(language_server_id, cx);
4846 })
4847 }
4848 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
4849 this.update(&mut cx, |this, cx| {
4850 this.disk_based_diagnostics_finished(language_server_id, cx)
4851 });
4852 }
4853 }
4854
4855 Ok(())
4856 }
4857
4858 async fn handle_update_buffer(
4859 this: ModelHandle<Self>,
4860 envelope: TypedEnvelope<proto::UpdateBuffer>,
4861 _: Arc<Client>,
4862 mut cx: AsyncAppContext,
4863 ) -> Result<()> {
4864 this.update(&mut cx, |this, cx| {
4865 let payload = envelope.payload.clone();
4866 let buffer_id = payload.buffer_id;
4867 let ops = payload
4868 .operations
4869 .into_iter()
4870 .map(language::proto::deserialize_operation)
4871 .collect::<Result<Vec<_>, _>>()?;
4872 let is_remote = this.is_remote();
4873 match this.opened_buffers.entry(buffer_id) {
4874 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
4875 OpenBuffer::Strong(buffer) => {
4876 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
4877 }
4878 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
4879 OpenBuffer::Weak(_) => {}
4880 },
4881 hash_map::Entry::Vacant(e) => {
4882 assert!(
4883 is_remote,
4884 "received buffer update from {:?}",
4885 envelope.original_sender_id
4886 );
4887 e.insert(OpenBuffer::Operations(ops));
4888 }
4889 }
4890 Ok(())
4891 })
4892 }
4893
4894 async fn handle_create_buffer_for_peer(
4895 this: ModelHandle<Self>,
4896 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
4897 _: Arc<Client>,
4898 mut cx: AsyncAppContext,
4899 ) -> Result<()> {
4900 this.update(&mut cx, |this, cx| {
4901 match envelope
4902 .payload
4903 .variant
4904 .ok_or_else(|| anyhow!("missing variant"))?
4905 {
4906 proto::create_buffer_for_peer::Variant::State(mut state) => {
4907 let mut buffer_file = None;
4908 if let Some(file) = state.file.take() {
4909 let worktree_id = WorktreeId::from_proto(file.worktree_id);
4910 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
4911 anyhow!("no worktree found for id {}", file.worktree_id)
4912 })?;
4913 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
4914 as Arc<dyn language::File>);
4915 }
4916
4917 let buffer_id = state.id;
4918 let buffer = cx.add_model(|_| {
4919 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
4920 });
4921 this.incomplete_buffers.insert(buffer_id, buffer);
4922 }
4923 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
4924 let buffer = this
4925 .incomplete_buffers
4926 .get(&chunk.buffer_id)
4927 .ok_or_else(|| {
4928 anyhow!(
4929 "received chunk for buffer {} without initial state",
4930 chunk.buffer_id
4931 )
4932 })?
4933 .clone();
4934 let operations = chunk
4935 .operations
4936 .into_iter()
4937 .map(language::proto::deserialize_operation)
4938 .collect::<Result<Vec<_>>>()?;
4939 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
4940
4941 if chunk.is_last {
4942 this.incomplete_buffers.remove(&chunk.buffer_id);
4943 this.register_buffer(&buffer, cx)?;
4944 }
4945 }
4946 }
4947
4948 Ok(())
4949 })
4950 }
4951
4952 async fn handle_update_diff_base(
4953 this: ModelHandle<Self>,
4954 envelope: TypedEnvelope<proto::UpdateDiffBase>,
4955 _: Arc<Client>,
4956 mut cx: AsyncAppContext,
4957 ) -> Result<()> {
4958 this.update(&mut cx, |this, cx| {
4959 let buffer_id = envelope.payload.buffer_id;
4960 let diff_base = envelope.payload.diff_base;
4961 let buffer = this
4962 .opened_buffers
4963 .get_mut(&buffer_id)
4964 .and_then(|b| b.upgrade(cx))
4965 .ok_or_else(|| anyhow!("No such buffer {}", buffer_id))?;
4966
4967 buffer.update(cx, |buffer, cx| buffer.update_diff_base(diff_base, cx));
4968
4969 Ok(())
4970 })
4971 }
4972
4973 async fn handle_update_buffer_file(
4974 this: ModelHandle<Self>,
4975 envelope: TypedEnvelope<proto::UpdateBufferFile>,
4976 _: Arc<Client>,
4977 mut cx: AsyncAppContext,
4978 ) -> Result<()> {
4979 this.update(&mut cx, |this, cx| {
4980 let payload = envelope.payload.clone();
4981 let buffer_id = payload.buffer_id;
4982 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
4983 let worktree = this
4984 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
4985 .ok_or_else(|| anyhow!("no such worktree"))?;
4986 let file = File::from_proto(file, worktree, cx)?;
4987 let buffer = this
4988 .opened_buffers
4989 .get_mut(&buffer_id)
4990 .and_then(|b| b.upgrade(cx))
4991 .ok_or_else(|| anyhow!("no such buffer"))?;
4992 buffer.update(cx, |buffer, cx| {
4993 buffer.file_updated(Arc::new(file), cx).detach();
4994 });
4995 Ok(())
4996 })
4997 }
4998
4999 async fn handle_save_buffer(
5000 this: ModelHandle<Self>,
5001 envelope: TypedEnvelope<proto::SaveBuffer>,
5002 _: Arc<Client>,
5003 mut cx: AsyncAppContext,
5004 ) -> Result<proto::BufferSaved> {
5005 let buffer_id = envelope.payload.buffer_id;
5006 let requested_version = deserialize_version(envelope.payload.version);
5007
5008 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
5009 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
5010 let buffer = this
5011 .opened_buffers
5012 .get(&buffer_id)
5013 .and_then(|buffer| buffer.upgrade(cx))
5014 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
5015 Ok::<_, anyhow::Error>((project_id, buffer))
5016 })?;
5017 buffer
5018 .update(&mut cx, |buffer, _| {
5019 buffer.wait_for_version(requested_version)
5020 })
5021 .await;
5022
5023 let (saved_version, fingerprint, mtime) =
5024 buffer.update(&mut cx, |buffer, cx| buffer.save(cx)).await?;
5025 Ok(proto::BufferSaved {
5026 project_id,
5027 buffer_id,
5028 version: serialize_version(&saved_version),
5029 mtime: Some(mtime.into()),
5030 fingerprint,
5031 })
5032 }
5033
5034 async fn handle_reload_buffers(
5035 this: ModelHandle<Self>,
5036 envelope: TypedEnvelope<proto::ReloadBuffers>,
5037 _: Arc<Client>,
5038 mut cx: AsyncAppContext,
5039 ) -> Result<proto::ReloadBuffersResponse> {
5040 let sender_id = envelope.original_sender_id()?;
5041 let reload = this.update(&mut cx, |this, cx| {
5042 let mut buffers = HashSet::default();
5043 for buffer_id in &envelope.payload.buffer_ids {
5044 buffers.insert(
5045 this.opened_buffers
5046 .get(buffer_id)
5047 .and_then(|buffer| buffer.upgrade(cx))
5048 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5049 );
5050 }
5051 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
5052 })?;
5053
5054 let project_transaction = reload.await?;
5055 let project_transaction = this.update(&mut cx, |this, cx| {
5056 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5057 });
5058 Ok(proto::ReloadBuffersResponse {
5059 transaction: Some(project_transaction),
5060 })
5061 }
5062
5063 async fn handle_format_buffers(
5064 this: ModelHandle<Self>,
5065 envelope: TypedEnvelope<proto::FormatBuffers>,
5066 _: Arc<Client>,
5067 mut cx: AsyncAppContext,
5068 ) -> Result<proto::FormatBuffersResponse> {
5069 let sender_id = envelope.original_sender_id()?;
5070 let format = this.update(&mut cx, |this, cx| {
5071 let mut buffers = HashSet::default();
5072 for buffer_id in &envelope.payload.buffer_ids {
5073 buffers.insert(
5074 this.opened_buffers
5075 .get(buffer_id)
5076 .and_then(|buffer| buffer.upgrade(cx))
5077 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5078 );
5079 }
5080 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
5081 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
5082 })?;
5083
5084 let project_transaction = format.await?;
5085 let project_transaction = this.update(&mut cx, |this, cx| {
5086 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5087 });
5088 Ok(proto::FormatBuffersResponse {
5089 transaction: Some(project_transaction),
5090 })
5091 }
5092
5093 async fn handle_get_completions(
5094 this: ModelHandle<Self>,
5095 envelope: TypedEnvelope<proto::GetCompletions>,
5096 _: Arc<Client>,
5097 mut cx: AsyncAppContext,
5098 ) -> Result<proto::GetCompletionsResponse> {
5099 let position = envelope
5100 .payload
5101 .position
5102 .and_then(language::proto::deserialize_anchor)
5103 .ok_or_else(|| anyhow!("invalid position"))?;
5104 let version = deserialize_version(envelope.payload.version);
5105 let buffer = this.read_with(&cx, |this, cx| {
5106 this.opened_buffers
5107 .get(&envelope.payload.buffer_id)
5108 .and_then(|buffer| buffer.upgrade(cx))
5109 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
5110 })?;
5111 buffer
5112 .update(&mut cx, |buffer, _| buffer.wait_for_version(version))
5113 .await;
5114 let version = buffer.read_with(&cx, |buffer, _| buffer.version());
5115 let completions = this
5116 .update(&mut cx, |this, cx| this.completions(&buffer, position, cx))
5117 .await?;
5118
5119 Ok(proto::GetCompletionsResponse {
5120 completions: completions
5121 .iter()
5122 .map(language::proto::serialize_completion)
5123 .collect(),
5124 version: serialize_version(&version),
5125 })
5126 }
5127
5128 async fn handle_apply_additional_edits_for_completion(
5129 this: ModelHandle<Self>,
5130 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
5131 _: Arc<Client>,
5132 mut cx: AsyncAppContext,
5133 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
5134 let (buffer, completion) = this.update(&mut cx, |this, cx| {
5135 let buffer = this
5136 .opened_buffers
5137 .get(&envelope.payload.buffer_id)
5138 .and_then(|buffer| buffer.upgrade(cx))
5139 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5140 let language = buffer.read(cx).language();
5141 let completion = language::proto::deserialize_completion(
5142 envelope
5143 .payload
5144 .completion
5145 .ok_or_else(|| anyhow!("invalid completion"))?,
5146 language.cloned(),
5147 );
5148 Ok::<_, anyhow::Error>((buffer, completion))
5149 })?;
5150
5151 let completion = completion.await?;
5152
5153 let apply_additional_edits = this.update(&mut cx, |this, cx| {
5154 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
5155 });
5156
5157 Ok(proto::ApplyCompletionAdditionalEditsResponse {
5158 transaction: apply_additional_edits
5159 .await?
5160 .as_ref()
5161 .map(language::proto::serialize_transaction),
5162 })
5163 }
5164
5165 async fn handle_get_code_actions(
5166 this: ModelHandle<Self>,
5167 envelope: TypedEnvelope<proto::GetCodeActions>,
5168 _: Arc<Client>,
5169 mut cx: AsyncAppContext,
5170 ) -> Result<proto::GetCodeActionsResponse> {
5171 let start = envelope
5172 .payload
5173 .start
5174 .and_then(language::proto::deserialize_anchor)
5175 .ok_or_else(|| anyhow!("invalid start"))?;
5176 let end = envelope
5177 .payload
5178 .end
5179 .and_then(language::proto::deserialize_anchor)
5180 .ok_or_else(|| anyhow!("invalid end"))?;
5181 let buffer = this.update(&mut cx, |this, cx| {
5182 this.opened_buffers
5183 .get(&envelope.payload.buffer_id)
5184 .and_then(|buffer| buffer.upgrade(cx))
5185 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
5186 })?;
5187 buffer
5188 .update(&mut cx, |buffer, _| {
5189 buffer.wait_for_version(deserialize_version(envelope.payload.version))
5190 })
5191 .await;
5192
5193 let version = buffer.read_with(&cx, |buffer, _| buffer.version());
5194 let code_actions = this.update(&mut cx, |this, cx| {
5195 Ok::<_, anyhow::Error>(this.code_actions(&buffer, start..end, cx))
5196 })?;
5197
5198 Ok(proto::GetCodeActionsResponse {
5199 actions: code_actions
5200 .await?
5201 .iter()
5202 .map(language::proto::serialize_code_action)
5203 .collect(),
5204 version: serialize_version(&version),
5205 })
5206 }
5207
5208 async fn handle_apply_code_action(
5209 this: ModelHandle<Self>,
5210 envelope: TypedEnvelope<proto::ApplyCodeAction>,
5211 _: Arc<Client>,
5212 mut cx: AsyncAppContext,
5213 ) -> Result<proto::ApplyCodeActionResponse> {
5214 let sender_id = envelope.original_sender_id()?;
5215 let action = language::proto::deserialize_code_action(
5216 envelope
5217 .payload
5218 .action
5219 .ok_or_else(|| anyhow!("invalid action"))?,
5220 )?;
5221 let apply_code_action = this.update(&mut cx, |this, cx| {
5222 let buffer = this
5223 .opened_buffers
5224 .get(&envelope.payload.buffer_id)
5225 .and_then(|buffer| buffer.upgrade(cx))
5226 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5227 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
5228 })?;
5229
5230 let project_transaction = apply_code_action.await?;
5231 let project_transaction = this.update(&mut cx, |this, cx| {
5232 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5233 });
5234 Ok(proto::ApplyCodeActionResponse {
5235 transaction: Some(project_transaction),
5236 })
5237 }
5238
5239 async fn handle_lsp_command<T: LspCommand>(
5240 this: ModelHandle<Self>,
5241 envelope: TypedEnvelope<T::ProtoRequest>,
5242 _: Arc<Client>,
5243 mut cx: AsyncAppContext,
5244 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
5245 where
5246 <T::LspRequest as lsp::request::Request>::Result: Send,
5247 {
5248 let sender_id = envelope.original_sender_id()?;
5249 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
5250 let buffer_handle = this.read_with(&cx, |this, _| {
5251 this.opened_buffers
5252 .get(&buffer_id)
5253 .and_then(|buffer| buffer.upgrade(&cx))
5254 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
5255 })?;
5256 let request = T::from_proto(
5257 envelope.payload,
5258 this.clone(),
5259 buffer_handle.clone(),
5260 cx.clone(),
5261 )
5262 .await?;
5263 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
5264 let response = this
5265 .update(&mut cx, |this, cx| {
5266 this.request_lsp(buffer_handle, request, cx)
5267 })
5268 .await?;
5269 this.update(&mut cx, |this, cx| {
5270 Ok(T::response_to_proto(
5271 response,
5272 this,
5273 sender_id,
5274 &buffer_version,
5275 cx,
5276 ))
5277 })
5278 }
5279
5280 async fn handle_get_project_symbols(
5281 this: ModelHandle<Self>,
5282 envelope: TypedEnvelope<proto::GetProjectSymbols>,
5283 _: Arc<Client>,
5284 mut cx: AsyncAppContext,
5285 ) -> Result<proto::GetProjectSymbolsResponse> {
5286 let symbols = this
5287 .update(&mut cx, |this, cx| {
5288 this.symbols(&envelope.payload.query, cx)
5289 })
5290 .await?;
5291
5292 Ok(proto::GetProjectSymbolsResponse {
5293 symbols: symbols.iter().map(serialize_symbol).collect(),
5294 })
5295 }
5296
5297 async fn handle_search_project(
5298 this: ModelHandle<Self>,
5299 envelope: TypedEnvelope<proto::SearchProject>,
5300 _: Arc<Client>,
5301 mut cx: AsyncAppContext,
5302 ) -> Result<proto::SearchProjectResponse> {
5303 let peer_id = envelope.original_sender_id()?;
5304 let query = SearchQuery::from_proto(envelope.payload)?;
5305 let result = this
5306 .update(&mut cx, |this, cx| this.search(query, cx))
5307 .await?;
5308
5309 this.update(&mut cx, |this, cx| {
5310 let mut locations = Vec::new();
5311 for (buffer, ranges) in result {
5312 for range in ranges {
5313 let start = serialize_anchor(&range.start);
5314 let end = serialize_anchor(&range.end);
5315 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
5316 locations.push(proto::Location {
5317 buffer_id,
5318 start: Some(start),
5319 end: Some(end),
5320 });
5321 }
5322 }
5323 Ok(proto::SearchProjectResponse { locations })
5324 })
5325 }
5326
5327 async fn handle_open_buffer_for_symbol(
5328 this: ModelHandle<Self>,
5329 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
5330 _: Arc<Client>,
5331 mut cx: AsyncAppContext,
5332 ) -> Result<proto::OpenBufferForSymbolResponse> {
5333 let peer_id = envelope.original_sender_id()?;
5334 let symbol = envelope
5335 .payload
5336 .symbol
5337 .ok_or_else(|| anyhow!("invalid symbol"))?;
5338 let symbol = this
5339 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
5340 .await?;
5341 let symbol = this.read_with(&cx, |this, _| {
5342 let signature = this.symbol_signature(&symbol.path);
5343 if signature == symbol.signature {
5344 Ok(symbol)
5345 } else {
5346 Err(anyhow!("invalid symbol signature"))
5347 }
5348 })?;
5349 let buffer = this
5350 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
5351 .await?;
5352
5353 Ok(proto::OpenBufferForSymbolResponse {
5354 buffer_id: this.update(&mut cx, |this, cx| {
5355 this.create_buffer_for_peer(&buffer, peer_id, cx)
5356 }),
5357 })
5358 }
5359
5360 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
5361 let mut hasher = Sha256::new();
5362 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
5363 hasher.update(project_path.path.to_string_lossy().as_bytes());
5364 hasher.update(self.nonce.to_be_bytes());
5365 hasher.finalize().as_slice().try_into().unwrap()
5366 }
5367
5368 async fn handle_open_buffer_by_id(
5369 this: ModelHandle<Self>,
5370 envelope: TypedEnvelope<proto::OpenBufferById>,
5371 _: Arc<Client>,
5372 mut cx: AsyncAppContext,
5373 ) -> Result<proto::OpenBufferResponse> {
5374 let peer_id = envelope.original_sender_id()?;
5375 let buffer = this
5376 .update(&mut cx, |this, cx| {
5377 this.open_buffer_by_id(envelope.payload.id, cx)
5378 })
5379 .await?;
5380 this.update(&mut cx, |this, cx| {
5381 Ok(proto::OpenBufferResponse {
5382 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5383 })
5384 })
5385 }
5386
5387 async fn handle_open_buffer_by_path(
5388 this: ModelHandle<Self>,
5389 envelope: TypedEnvelope<proto::OpenBufferByPath>,
5390 _: Arc<Client>,
5391 mut cx: AsyncAppContext,
5392 ) -> Result<proto::OpenBufferResponse> {
5393 let peer_id = envelope.original_sender_id()?;
5394 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5395 let open_buffer = this.update(&mut cx, |this, cx| {
5396 this.open_buffer(
5397 ProjectPath {
5398 worktree_id,
5399 path: PathBuf::from(envelope.payload.path).into(),
5400 },
5401 cx,
5402 )
5403 });
5404
5405 let buffer = open_buffer.await?;
5406 this.update(&mut cx, |this, cx| {
5407 Ok(proto::OpenBufferResponse {
5408 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5409 })
5410 })
5411 }
5412
5413 fn serialize_project_transaction_for_peer(
5414 &mut self,
5415 project_transaction: ProjectTransaction,
5416 peer_id: PeerId,
5417 cx: &AppContext,
5418 ) -> proto::ProjectTransaction {
5419 let mut serialized_transaction = proto::ProjectTransaction {
5420 buffer_ids: Default::default(),
5421 transactions: Default::default(),
5422 };
5423 for (buffer, transaction) in project_transaction.0 {
5424 serialized_transaction
5425 .buffer_ids
5426 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
5427 serialized_transaction
5428 .transactions
5429 .push(language::proto::serialize_transaction(&transaction));
5430 }
5431 serialized_transaction
5432 }
5433
5434 fn deserialize_project_transaction(
5435 &mut self,
5436 message: proto::ProjectTransaction,
5437 push_to_history: bool,
5438 cx: &mut ModelContext<Self>,
5439 ) -> Task<Result<ProjectTransaction>> {
5440 cx.spawn(|this, mut cx| async move {
5441 let mut project_transaction = ProjectTransaction::default();
5442 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
5443 {
5444 let buffer = this
5445 .update(&mut cx, |this, cx| this.wait_for_buffer(buffer_id, cx))
5446 .await?;
5447 let transaction = language::proto::deserialize_transaction(transaction)?;
5448 project_transaction.0.insert(buffer, transaction);
5449 }
5450
5451 for (buffer, transaction) in &project_transaction.0 {
5452 buffer
5453 .update(&mut cx, |buffer, _| {
5454 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
5455 })
5456 .await;
5457
5458 if push_to_history {
5459 buffer.update(&mut cx, |buffer, _| {
5460 buffer.push_transaction(transaction.clone(), Instant::now());
5461 });
5462 }
5463 }
5464
5465 Ok(project_transaction)
5466 })
5467 }
5468
5469 fn create_buffer_for_peer(
5470 &mut self,
5471 buffer: &ModelHandle<Buffer>,
5472 peer_id: PeerId,
5473 cx: &AppContext,
5474 ) -> u64 {
5475 let buffer_id = buffer.read(cx).remote_id();
5476 if let Some(project_id) = self.remote_id() {
5477 let shared_buffers = self.shared_buffers.entry(peer_id).or_default();
5478 if shared_buffers.insert(buffer_id) {
5479 let buffer = buffer.read(cx);
5480 let state = buffer.to_proto();
5481 let operations = buffer.serialize_ops(cx);
5482 let client = self.client.clone();
5483 cx.background()
5484 .spawn(
5485 async move {
5486 let mut operations = operations.await;
5487
5488 client.send(proto::CreateBufferForPeer {
5489 project_id,
5490 peer_id: peer_id.0,
5491 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
5492 })?;
5493
5494 loop {
5495 #[cfg(any(test, feature = "test-support"))]
5496 const CHUNK_SIZE: usize = 5;
5497
5498 #[cfg(not(any(test, feature = "test-support")))]
5499 const CHUNK_SIZE: usize = 100;
5500
5501 let chunk = operations
5502 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
5503 .collect();
5504 let is_last = operations.is_empty();
5505 client.send(proto::CreateBufferForPeer {
5506 project_id,
5507 peer_id: peer_id.0,
5508 variant: Some(proto::create_buffer_for_peer::Variant::Chunk(
5509 proto::BufferChunk {
5510 buffer_id,
5511 operations: chunk,
5512 is_last,
5513 },
5514 )),
5515 })?;
5516
5517 if is_last {
5518 break;
5519 }
5520 }
5521
5522 Ok(())
5523 }
5524 .log_err(),
5525 )
5526 .detach();
5527 }
5528 }
5529
5530 buffer_id
5531 }
5532
5533 fn wait_for_buffer(
5534 &self,
5535 id: u64,
5536 cx: &mut ModelContext<Self>,
5537 ) -> Task<Result<ModelHandle<Buffer>>> {
5538 let mut opened_buffer_rx = self.opened_buffer.1.clone();
5539 cx.spawn(|this, mut cx| async move {
5540 let buffer = loop {
5541 let buffer = this.read_with(&cx, |this, cx| {
5542 this.opened_buffers
5543 .get(&id)
5544 .and_then(|buffer| buffer.upgrade(cx))
5545 });
5546 if let Some(buffer) = buffer {
5547 break buffer;
5548 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
5549 return Err(anyhow!("disconnected before buffer {} could be opened", id));
5550 }
5551
5552 opened_buffer_rx
5553 .next()
5554 .await
5555 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
5556 };
5557 buffer.update(&mut cx, |buffer, cx| buffer.git_diff_recalc(cx));
5558 Ok(buffer)
5559 })
5560 }
5561
5562 fn deserialize_symbol(
5563 &self,
5564 serialized_symbol: proto::Symbol,
5565 ) -> impl Future<Output = Result<Symbol>> {
5566 let languages = self.languages.clone();
5567 async move {
5568 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
5569 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
5570 let start = serialized_symbol
5571 .start
5572 .ok_or_else(|| anyhow!("invalid start"))?;
5573 let end = serialized_symbol
5574 .end
5575 .ok_or_else(|| anyhow!("invalid end"))?;
5576 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
5577 let path = ProjectPath {
5578 worktree_id,
5579 path: PathBuf::from(serialized_symbol.path).into(),
5580 };
5581 let language = languages.select_language(&path.path);
5582 Ok(Symbol {
5583 language_server_name: LanguageServerName(
5584 serialized_symbol.language_server_name.into(),
5585 ),
5586 source_worktree_id,
5587 path,
5588 label: {
5589 match language {
5590 Some(language) => {
5591 language
5592 .label_for_symbol(&serialized_symbol.name, kind)
5593 .await
5594 }
5595 None => None,
5596 }
5597 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
5598 },
5599
5600 name: serialized_symbol.name,
5601 range: PointUtf16::new(start.row, start.column)
5602 ..PointUtf16::new(end.row, end.column),
5603 kind,
5604 signature: serialized_symbol
5605 .signature
5606 .try_into()
5607 .map_err(|_| anyhow!("invalid signature"))?,
5608 })
5609 }
5610 }
5611
5612 async fn handle_buffer_saved(
5613 this: ModelHandle<Self>,
5614 envelope: TypedEnvelope<proto::BufferSaved>,
5615 _: Arc<Client>,
5616 mut cx: AsyncAppContext,
5617 ) -> Result<()> {
5618 let version = deserialize_version(envelope.payload.version);
5619 let mtime = envelope
5620 .payload
5621 .mtime
5622 .ok_or_else(|| anyhow!("missing mtime"))?
5623 .into();
5624
5625 this.update(&mut cx, |this, cx| {
5626 let buffer = this
5627 .opened_buffers
5628 .get(&envelope.payload.buffer_id)
5629 .and_then(|buffer| buffer.upgrade(cx));
5630 if let Some(buffer) = buffer {
5631 buffer.update(cx, |buffer, cx| {
5632 buffer.did_save(version, envelope.payload.fingerprint, mtime, None, cx);
5633 });
5634 }
5635 Ok(())
5636 })
5637 }
5638
5639 async fn handle_buffer_reloaded(
5640 this: ModelHandle<Self>,
5641 envelope: TypedEnvelope<proto::BufferReloaded>,
5642 _: Arc<Client>,
5643 mut cx: AsyncAppContext,
5644 ) -> Result<()> {
5645 let payload = envelope.payload;
5646 let version = deserialize_version(payload.version);
5647 let line_ending = deserialize_line_ending(
5648 proto::LineEnding::from_i32(payload.line_ending)
5649 .ok_or_else(|| anyhow!("missing line ending"))?,
5650 );
5651 let mtime = payload
5652 .mtime
5653 .ok_or_else(|| anyhow!("missing mtime"))?
5654 .into();
5655 this.update(&mut cx, |this, cx| {
5656 let buffer = this
5657 .opened_buffers
5658 .get(&payload.buffer_id)
5659 .and_then(|buffer| buffer.upgrade(cx));
5660 if let Some(buffer) = buffer {
5661 buffer.update(cx, |buffer, cx| {
5662 buffer.did_reload(version, payload.fingerprint, line_ending, mtime, cx);
5663 });
5664 }
5665 Ok(())
5666 })
5667 }
5668
5669 #[allow(clippy::type_complexity)]
5670 fn edits_from_lsp(
5671 &mut self,
5672 buffer: &ModelHandle<Buffer>,
5673 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
5674 version: Option<i32>,
5675 cx: &mut ModelContext<Self>,
5676 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
5677 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, version, cx);
5678 cx.background().spawn(async move {
5679 let snapshot = snapshot?;
5680 let mut lsp_edits = lsp_edits
5681 .into_iter()
5682 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
5683 .collect::<Vec<_>>();
5684 lsp_edits.sort_by_key(|(range, _)| range.start);
5685
5686 let mut lsp_edits = lsp_edits.into_iter().peekable();
5687 let mut edits = Vec::new();
5688 while let Some((mut range, mut new_text)) = lsp_edits.next() {
5689 // Clip invalid ranges provided by the language server.
5690 range.start = snapshot.clip_point_utf16(range.start, Bias::Left);
5691 range.end = snapshot.clip_point_utf16(range.end, Bias::Left);
5692
5693 // Combine any LSP edits that are adjacent.
5694 //
5695 // Also, combine LSP edits that are separated from each other by only
5696 // a newline. This is important because for some code actions,
5697 // Rust-analyzer rewrites the entire buffer via a series of edits that
5698 // are separated by unchanged newline characters.
5699 //
5700 // In order for the diffing logic below to work properly, any edits that
5701 // cancel each other out must be combined into one.
5702 while let Some((next_range, next_text)) = lsp_edits.peek() {
5703 if next_range.start > range.end {
5704 if next_range.start.row > range.end.row + 1
5705 || next_range.start.column > 0
5706 || snapshot.clip_point_utf16(
5707 PointUtf16::new(range.end.row, u32::MAX),
5708 Bias::Left,
5709 ) > range.end
5710 {
5711 break;
5712 }
5713 new_text.push('\n');
5714 }
5715 range.end = next_range.end;
5716 new_text.push_str(next_text);
5717 lsp_edits.next();
5718 }
5719
5720 // For multiline edits, perform a diff of the old and new text so that
5721 // we can identify the changes more precisely, preserving the locations
5722 // of any anchors positioned in the unchanged regions.
5723 if range.end.row > range.start.row {
5724 let mut offset = range.start.to_offset(&snapshot);
5725 let old_text = snapshot.text_for_range(range).collect::<String>();
5726
5727 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
5728 let mut moved_since_edit = true;
5729 for change in diff.iter_all_changes() {
5730 let tag = change.tag();
5731 let value = change.value();
5732 match tag {
5733 ChangeTag::Equal => {
5734 offset += value.len();
5735 moved_since_edit = true;
5736 }
5737 ChangeTag::Delete => {
5738 let start = snapshot.anchor_after(offset);
5739 let end = snapshot.anchor_before(offset + value.len());
5740 if moved_since_edit {
5741 edits.push((start..end, String::new()));
5742 } else {
5743 edits.last_mut().unwrap().0.end = end;
5744 }
5745 offset += value.len();
5746 moved_since_edit = false;
5747 }
5748 ChangeTag::Insert => {
5749 if moved_since_edit {
5750 let anchor = snapshot.anchor_after(offset);
5751 edits.push((anchor..anchor, value.to_string()));
5752 } else {
5753 edits.last_mut().unwrap().1.push_str(value);
5754 }
5755 moved_since_edit = false;
5756 }
5757 }
5758 }
5759 } else if range.end == range.start {
5760 let anchor = snapshot.anchor_after(range.start);
5761 edits.push((anchor..anchor, new_text));
5762 } else {
5763 let edit_start = snapshot.anchor_after(range.start);
5764 let edit_end = snapshot.anchor_before(range.end);
5765 edits.push((edit_start..edit_end, new_text));
5766 }
5767 }
5768
5769 Ok(edits)
5770 })
5771 }
5772
5773 fn buffer_snapshot_for_lsp_version(
5774 &mut self,
5775 buffer: &ModelHandle<Buffer>,
5776 version: Option<i32>,
5777 cx: &AppContext,
5778 ) -> Result<TextBufferSnapshot> {
5779 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
5780
5781 if let Some(version) = version {
5782 let buffer_id = buffer.read(cx).remote_id();
5783 let snapshots = self
5784 .buffer_snapshots
5785 .get_mut(&buffer_id)
5786 .ok_or_else(|| anyhow!("no snapshot found for buffer {}", buffer_id))?;
5787 let mut found_snapshot = None;
5788 snapshots.retain(|(snapshot_version, snapshot)| {
5789 if snapshot_version + OLD_VERSIONS_TO_RETAIN < version {
5790 false
5791 } else {
5792 if *snapshot_version == version {
5793 found_snapshot = Some(snapshot.clone());
5794 }
5795 true
5796 }
5797 });
5798
5799 found_snapshot.ok_or_else(|| {
5800 anyhow!(
5801 "snapshot not found for buffer {} at version {}",
5802 buffer_id,
5803 version
5804 )
5805 })
5806 } else {
5807 Ok((buffer.read(cx)).text_snapshot())
5808 }
5809 }
5810
5811 fn language_server_for_buffer(
5812 &self,
5813 buffer: &Buffer,
5814 cx: &AppContext,
5815 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
5816 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
5817 let name = language.lsp_adapter()?.name.clone();
5818 let worktree_id = file.worktree_id(cx);
5819 let key = (worktree_id, name);
5820
5821 if let Some(server_id) = self.language_server_ids.get(&key) {
5822 if let Some(LanguageServerState::Running {
5823 adapter, server, ..
5824 }) = self.language_servers.get(server_id)
5825 {
5826 return Some((adapter, server));
5827 }
5828 }
5829 }
5830
5831 None
5832 }
5833}
5834
5835impl ProjectStore {
5836 pub fn new() -> Self {
5837 Self {
5838 projects: Default::default(),
5839 }
5840 }
5841
5842 pub fn projects<'a>(
5843 &'a self,
5844 cx: &'a AppContext,
5845 ) -> impl 'a + Iterator<Item = ModelHandle<Project>> {
5846 self.projects
5847 .iter()
5848 .filter_map(|project| project.upgrade(cx))
5849 }
5850
5851 fn add_project(&mut self, project: WeakModelHandle<Project>, cx: &mut ModelContext<Self>) {
5852 if let Err(ix) = self
5853 .projects
5854 .binary_search_by_key(&project.id(), WeakModelHandle::id)
5855 {
5856 self.projects.insert(ix, project);
5857 }
5858 cx.notify();
5859 }
5860
5861 fn prune_projects(&mut self, cx: &mut ModelContext<Self>) {
5862 let mut did_change = false;
5863 self.projects.retain(|project| {
5864 if project.is_upgradable(cx) {
5865 true
5866 } else {
5867 did_change = true;
5868 false
5869 }
5870 });
5871 if did_change {
5872 cx.notify();
5873 }
5874 }
5875}
5876
5877impl WorktreeHandle {
5878 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
5879 match self {
5880 WorktreeHandle::Strong(handle) => Some(handle.clone()),
5881 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
5882 }
5883 }
5884}
5885
5886impl OpenBuffer {
5887 pub fn upgrade(&self, cx: &impl UpgradeModelHandle) -> Option<ModelHandle<Buffer>> {
5888 match self {
5889 OpenBuffer::Strong(handle) => Some(handle.clone()),
5890 OpenBuffer::Weak(handle) => handle.upgrade(cx),
5891 OpenBuffer::Operations(_) => None,
5892 }
5893 }
5894}
5895
5896pub struct PathMatchCandidateSet {
5897 pub snapshot: Snapshot,
5898 pub include_ignored: bool,
5899 pub include_root_name: bool,
5900}
5901
5902impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
5903 type Candidates = PathMatchCandidateSetIter<'a>;
5904
5905 fn id(&self) -> usize {
5906 self.snapshot.id().to_usize()
5907 }
5908
5909 fn len(&self) -> usize {
5910 if self.include_ignored {
5911 self.snapshot.file_count()
5912 } else {
5913 self.snapshot.visible_file_count()
5914 }
5915 }
5916
5917 fn prefix(&self) -> Arc<str> {
5918 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
5919 self.snapshot.root_name().into()
5920 } else if self.include_root_name {
5921 format!("{}/", self.snapshot.root_name()).into()
5922 } else {
5923 "".into()
5924 }
5925 }
5926
5927 fn candidates(&'a self, start: usize) -> Self::Candidates {
5928 PathMatchCandidateSetIter {
5929 traversal: self.snapshot.files(self.include_ignored, start),
5930 }
5931 }
5932}
5933
5934pub struct PathMatchCandidateSetIter<'a> {
5935 traversal: Traversal<'a>,
5936}
5937
5938impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
5939 type Item = fuzzy::PathMatchCandidate<'a>;
5940
5941 fn next(&mut self) -> Option<Self::Item> {
5942 self.traversal.next().map(|entry| {
5943 if let EntryKind::File(char_bag) = entry.kind {
5944 fuzzy::PathMatchCandidate {
5945 path: &entry.path,
5946 char_bag,
5947 }
5948 } else {
5949 unreachable!()
5950 }
5951 })
5952 }
5953}
5954
5955impl Entity for ProjectStore {
5956 type Event = ();
5957}
5958
5959impl Entity for Project {
5960 type Event = Event;
5961
5962 fn release(&mut self, cx: &mut gpui::MutableAppContext) {
5963 self.project_store.update(cx, ProjectStore::prune_projects);
5964
5965 match &self.client_state {
5966 Some(ProjectClientState::Local { remote_id, .. }) => {
5967 self.client
5968 .send(proto::UnshareProject {
5969 project_id: *remote_id,
5970 })
5971 .log_err();
5972 }
5973 Some(ProjectClientState::Remote { remote_id, .. }) => {
5974 self.client
5975 .send(proto::LeaveProject {
5976 project_id: *remote_id,
5977 })
5978 .log_err();
5979 }
5980 _ => {}
5981 }
5982 }
5983
5984 fn app_will_quit(
5985 &mut self,
5986 _: &mut MutableAppContext,
5987 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
5988 let shutdown_futures = self
5989 .language_servers
5990 .drain()
5991 .map(|(_, server_state)| async {
5992 match server_state {
5993 LanguageServerState::Running { server, .. } => server.shutdown()?.await,
5994 LanguageServerState::Starting(starting_server) => {
5995 starting_server.await?.shutdown()?.await
5996 }
5997 }
5998 })
5999 .collect::<Vec<_>>();
6000
6001 Some(
6002 async move {
6003 futures::future::join_all(shutdown_futures).await;
6004 }
6005 .boxed(),
6006 )
6007 }
6008}
6009
6010impl Collaborator {
6011 fn from_proto(message: proto::Collaborator) -> Self {
6012 Self {
6013 peer_id: PeerId(message.peer_id),
6014 replica_id: message.replica_id as ReplicaId,
6015 }
6016 }
6017}
6018
6019impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
6020 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
6021 Self {
6022 worktree_id,
6023 path: path.as_ref().into(),
6024 }
6025 }
6026}
6027
6028fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
6029 proto::Symbol {
6030 language_server_name: symbol.language_server_name.0.to_string(),
6031 source_worktree_id: symbol.source_worktree_id.to_proto(),
6032 worktree_id: symbol.path.worktree_id.to_proto(),
6033 path: symbol.path.path.to_string_lossy().to_string(),
6034 name: symbol.name.clone(),
6035 kind: unsafe { mem::transmute(symbol.kind) },
6036 start: Some(proto::Point {
6037 row: symbol.range.start.row,
6038 column: symbol.range.start.column,
6039 }),
6040 end: Some(proto::Point {
6041 row: symbol.range.end.row,
6042 column: symbol.range.end.column,
6043 }),
6044 signature: symbol.signature.to_vec(),
6045 }
6046}
6047
6048fn relativize_path(base: &Path, path: &Path) -> PathBuf {
6049 let mut path_components = path.components();
6050 let mut base_components = base.components();
6051 let mut components: Vec<Component> = Vec::new();
6052 loop {
6053 match (path_components.next(), base_components.next()) {
6054 (None, None) => break,
6055 (Some(a), None) => {
6056 components.push(a);
6057 components.extend(path_components.by_ref());
6058 break;
6059 }
6060 (None, _) => components.push(Component::ParentDir),
6061 (Some(a), Some(b)) if components.is_empty() && a == b => (),
6062 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
6063 (Some(a), Some(_)) => {
6064 components.push(Component::ParentDir);
6065 for _ in base_components {
6066 components.push(Component::ParentDir);
6067 }
6068 components.push(a);
6069 components.extend(path_components.by_ref());
6070 break;
6071 }
6072 }
6073 }
6074 components.iter().map(|c| c.as_os_str()).collect()
6075}
6076
6077impl Item for Buffer {
6078 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
6079 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
6080 }
6081}