1mod ignore;
2mod lsp_command;
3mod lsp_glob_set;
4pub mod search;
5pub mod terminals;
6pub mod worktree;
7
8#[cfg(test)]
9mod project_tests;
10
11use anyhow::{anyhow, Context, Result};
12use client::{proto, Client, TypedEnvelope, UserStore};
13use clock::ReplicaId;
14use collections::{hash_map, BTreeMap, HashMap, HashSet};
15use copilot::Copilot;
16use futures::{
17 channel::mpsc::{self, UnboundedReceiver},
18 future::{try_join_all, Shared},
19 AsyncWriteExt, Future, FutureExt, StreamExt, TryFutureExt,
20};
21use gpui::{
22 AnyModelHandle, AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle, Task,
23 UpgradeModelHandle, WeakModelHandle,
24};
25use language::{
26 point_to_lsp,
27 proto::{
28 deserialize_anchor, deserialize_fingerprint, deserialize_line_ending, deserialize_version,
29 serialize_anchor, serialize_version,
30 },
31 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CachedLspAdapter, CodeAction, CodeLabel,
32 Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Diff, Event as BufferEvent, File as _,
33 Language, LanguageRegistry, LanguageServerName, LocalFile, OffsetRangeExt, Operation, Patch,
34 PendingLanguageServer, PointUtf16, RopeFingerprint, TextBufferSnapshot, ToOffset, ToPointUtf16,
35 Transaction, Unclipped,
36};
37use lsp::{
38 DiagnosticSeverity, DiagnosticTag, DidChangeWatchedFilesRegistrationOptions,
39 DocumentHighlightKind, LanguageServer, LanguageServerId, LanguageString, MarkedString,
40};
41use lsp_command::*;
42use lsp_glob_set::LspGlobSet;
43use postage::watch;
44use rand::prelude::*;
45use search::SearchQuery;
46use serde::Serialize;
47use settings::{FormatOnSave, Formatter, Settings};
48use sha2::{Digest, Sha256};
49use similar::{ChangeTag, TextDiff};
50use std::{
51 cell::RefCell,
52 cmp::{self, Ordering},
53 convert::TryInto,
54 hash::Hash,
55 mem,
56 num::NonZeroU32,
57 ops::Range,
58 path::{Component, Path, PathBuf},
59 rc::Rc,
60 str,
61 sync::{
62 atomic::{AtomicUsize, Ordering::SeqCst},
63 Arc,
64 },
65 time::{Duration, Instant, SystemTime},
66};
67use terminals::Terminals;
68
69use util::{debug_panic, defer, merge_json_value_into, post_inc, ResultExt, TryFutureExt as _};
70
71pub use fs::*;
72pub use worktree::*;
73
74pub trait Item {
75 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
76 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
77}
78
79// Language server state is stored across 3 collections:
80// language_servers =>
81// a mapping from unique server id to LanguageServerState which can either be a task for a
82// server in the process of starting, or a running server with adapter and language server arcs
83// language_server_ids => a mapping from worktreeId and server name to the unique server id
84// language_server_statuses => a mapping from unique server id to the current server status
85//
86// Multiple worktrees can map to the same language server for example when you jump to the definition
87// of a file in the standard library. So language_server_ids is used to look up which server is active
88// for a given worktree and language server name
89//
90// When starting a language server, first the id map is checked to make sure a server isn't already available
91// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
92// the Starting variant of LanguageServerState is stored in the language_servers map.
93pub struct Project {
94 worktrees: Vec<WorktreeHandle>,
95 active_entry: Option<ProjectEntryId>,
96 buffer_ordered_messages_tx: mpsc::UnboundedSender<BufferOrderedMessage>,
97 languages: Arc<LanguageRegistry>,
98 language_servers: HashMap<LanguageServerId, LanguageServerState>,
99 language_server_ids: HashMap<(WorktreeId, LanguageServerName), LanguageServerId>,
100 language_server_statuses: BTreeMap<LanguageServerId, LanguageServerStatus>,
101 last_workspace_edits_by_language_server: HashMap<LanguageServerId, ProjectTransaction>,
102 client: Arc<client::Client>,
103 next_entry_id: Arc<AtomicUsize>,
104 join_project_response_message_id: u32,
105 next_diagnostic_group_id: usize,
106 user_store: ModelHandle<UserStore>,
107 fs: Arc<dyn Fs>,
108 client_state: Option<ProjectClientState>,
109 collaborators: HashMap<proto::PeerId, Collaborator>,
110 client_subscriptions: Vec<client::Subscription>,
111 _subscriptions: Vec<gpui::Subscription>,
112 opened_buffer: (watch::Sender<()>, watch::Receiver<()>),
113 shared_buffers: HashMap<proto::PeerId, HashSet<u64>>,
114 #[allow(clippy::type_complexity)]
115 loading_buffers_by_path: HashMap<
116 ProjectPath,
117 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
118 >,
119 #[allow(clippy::type_complexity)]
120 loading_local_worktrees:
121 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
122 opened_buffers: HashMap<u64, OpenBuffer>,
123 /// A mapping from a buffer ID to None means that we've started waiting for an ID but haven't finished loading it.
124 /// Used for re-issuing buffer requests when peers temporarily disconnect
125 incomplete_remote_buffers: HashMap<u64, Option<ModelHandle<Buffer>>>,
126 buffer_snapshots: HashMap<u64, HashMap<LanguageServerId, Vec<LspBufferSnapshot>>>, // buffer_id -> server_id -> vec of snapshots
127 buffers_being_formatted: HashSet<usize>,
128 nonce: u128,
129 _maintain_buffer_languages: Task<()>,
130 _maintain_workspace_config: Task<()>,
131 terminals: Terminals,
132 copilot_enabled: bool,
133}
134
135struct LspBufferSnapshot {
136 version: i32,
137 snapshot: TextBufferSnapshot,
138}
139
140/// Message ordered with respect to buffer operations
141enum BufferOrderedMessage {
142 Operation {
143 buffer_id: u64,
144 operation: proto::Operation,
145 },
146 LanguageServerUpdate {
147 language_server_id: LanguageServerId,
148 message: proto::update_language_server::Variant,
149 },
150 Resync,
151}
152
153enum LocalProjectUpdate {
154 WorktreesChanged,
155 CreateBufferForPeer {
156 peer_id: proto::PeerId,
157 buffer_id: u64,
158 },
159}
160
161enum OpenBuffer {
162 Strong(ModelHandle<Buffer>),
163 Weak(WeakModelHandle<Buffer>),
164 Operations(Vec<Operation>),
165}
166
167enum WorktreeHandle {
168 Strong(ModelHandle<Worktree>),
169 Weak(WeakModelHandle<Worktree>),
170}
171
172enum ProjectClientState {
173 Local {
174 remote_id: u64,
175 updates_tx: mpsc::UnboundedSender<LocalProjectUpdate>,
176 _send_updates: Task<()>,
177 },
178 Remote {
179 sharing_has_stopped: bool,
180 remote_id: u64,
181 replica_id: ReplicaId,
182 },
183}
184
185#[derive(Clone, Debug)]
186pub struct Collaborator {
187 pub peer_id: proto::PeerId,
188 pub replica_id: ReplicaId,
189}
190
191#[derive(Clone, Debug, PartialEq, Eq)]
192pub enum Event {
193 ActiveEntryChanged(Option<ProjectEntryId>),
194 WorktreeAdded,
195 WorktreeRemoved(WorktreeId),
196 DiskBasedDiagnosticsStarted {
197 language_server_id: LanguageServerId,
198 },
199 DiskBasedDiagnosticsFinished {
200 language_server_id: LanguageServerId,
201 },
202 DiagnosticsUpdated {
203 path: ProjectPath,
204 language_server_id: LanguageServerId,
205 },
206 RemoteIdChanged(Option<u64>),
207 DisconnectedFromHost,
208 Closed,
209 CollaboratorUpdated {
210 old_peer_id: proto::PeerId,
211 new_peer_id: proto::PeerId,
212 },
213 CollaboratorLeft(proto::PeerId),
214}
215
216pub enum LanguageServerState {
217 Starting(Task<Option<Arc<LanguageServer>>>),
218 Running {
219 language: Arc<Language>,
220 adapter: Arc<CachedLspAdapter>,
221 server: Arc<LanguageServer>,
222 watched_paths: LspGlobSet,
223 simulate_disk_based_diagnostics_completion: Option<Task<()>>,
224 },
225}
226
227#[derive(Serialize)]
228pub struct LanguageServerStatus {
229 pub name: String,
230 pub pending_work: BTreeMap<String, LanguageServerProgress>,
231 pub has_pending_diagnostic_updates: bool,
232 progress_tokens: HashSet<String>,
233}
234
235#[derive(Clone, Debug, Serialize)]
236pub struct LanguageServerProgress {
237 pub message: Option<String>,
238 pub percentage: Option<usize>,
239 #[serde(skip_serializing)]
240 pub last_update_at: Instant,
241}
242
243#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
244pub struct ProjectPath {
245 pub worktree_id: WorktreeId,
246 pub path: Arc<Path>,
247}
248
249#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
250pub struct DiagnosticSummary {
251 pub error_count: usize,
252 pub warning_count: usize,
253}
254
255#[derive(Debug, Clone)]
256pub struct Location {
257 pub buffer: ModelHandle<Buffer>,
258 pub range: Range<language::Anchor>,
259}
260
261#[derive(Debug, Clone)]
262pub struct LocationLink {
263 pub origin: Option<Location>,
264 pub target: Location,
265}
266
267#[derive(Debug)]
268pub struct DocumentHighlight {
269 pub range: Range<language::Anchor>,
270 pub kind: DocumentHighlightKind,
271}
272
273#[derive(Clone, Debug)]
274pub struct Symbol {
275 pub language_server_name: LanguageServerName,
276 pub source_worktree_id: WorktreeId,
277 pub path: ProjectPath,
278 pub label: CodeLabel,
279 pub name: String,
280 pub kind: lsp::SymbolKind,
281 pub range: Range<Unclipped<PointUtf16>>,
282 pub signature: [u8; 32],
283}
284
285#[derive(Clone, Debug, PartialEq)]
286pub struct HoverBlock {
287 pub text: String,
288 pub language: Option<String>,
289}
290
291impl HoverBlock {
292 fn try_new(marked_string: MarkedString) -> Option<Self> {
293 let result = match marked_string {
294 MarkedString::LanguageString(LanguageString { language, value }) => HoverBlock {
295 text: value,
296 language: Some(language),
297 },
298 MarkedString::String(text) => HoverBlock {
299 text,
300 language: None,
301 },
302 };
303 if result.text.is_empty() {
304 None
305 } else {
306 Some(result)
307 }
308 }
309}
310
311#[derive(Debug)]
312pub struct Hover {
313 pub contents: Vec<HoverBlock>,
314 pub range: Option<Range<language::Anchor>>,
315}
316
317#[derive(Default)]
318pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
319
320impl DiagnosticSummary {
321 fn new<'a, T: 'a>(diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>) -> Self {
322 let mut this = Self {
323 error_count: 0,
324 warning_count: 0,
325 };
326
327 for entry in diagnostics {
328 if entry.diagnostic.is_primary {
329 match entry.diagnostic.severity {
330 DiagnosticSeverity::ERROR => this.error_count += 1,
331 DiagnosticSeverity::WARNING => this.warning_count += 1,
332 _ => {}
333 }
334 }
335 }
336
337 this
338 }
339
340 pub fn is_empty(&self) -> bool {
341 self.error_count == 0 && self.warning_count == 0
342 }
343
344 pub fn to_proto(
345 &self,
346 language_server_id: LanguageServerId,
347 path: &Path,
348 ) -> proto::DiagnosticSummary {
349 proto::DiagnosticSummary {
350 path: path.to_string_lossy().to_string(),
351 language_server_id: language_server_id.0 as u64,
352 error_count: self.error_count as u32,
353 warning_count: self.warning_count as u32,
354 }
355 }
356}
357
358#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
359pub struct ProjectEntryId(usize);
360
361impl ProjectEntryId {
362 pub const MAX: Self = Self(usize::MAX);
363
364 pub fn new(counter: &AtomicUsize) -> Self {
365 Self(counter.fetch_add(1, SeqCst))
366 }
367
368 pub fn from_proto(id: u64) -> Self {
369 Self(id as usize)
370 }
371
372 pub fn to_proto(&self) -> u64 {
373 self.0 as u64
374 }
375
376 pub fn to_usize(&self) -> usize {
377 self.0
378 }
379}
380
381#[derive(Debug, Clone, Copy, PartialEq, Eq)]
382pub enum FormatTrigger {
383 Save,
384 Manual,
385}
386
387impl FormatTrigger {
388 fn from_proto(value: i32) -> FormatTrigger {
389 match value {
390 0 => FormatTrigger::Save,
391 1 => FormatTrigger::Manual,
392 _ => FormatTrigger::Save,
393 }
394 }
395}
396
397impl Project {
398 pub fn init(client: &Arc<Client>) {
399 client.add_model_message_handler(Self::handle_add_collaborator);
400 client.add_model_message_handler(Self::handle_update_project_collaborator);
401 client.add_model_message_handler(Self::handle_remove_collaborator);
402 client.add_model_message_handler(Self::handle_buffer_reloaded);
403 client.add_model_message_handler(Self::handle_buffer_saved);
404 client.add_model_message_handler(Self::handle_start_language_server);
405 client.add_model_message_handler(Self::handle_update_language_server);
406 client.add_model_message_handler(Self::handle_update_project);
407 client.add_model_message_handler(Self::handle_unshare_project);
408 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
409 client.add_model_message_handler(Self::handle_update_buffer_file);
410 client.add_model_request_handler(Self::handle_update_buffer);
411 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
412 client.add_model_message_handler(Self::handle_update_worktree);
413 client.add_model_request_handler(Self::handle_create_project_entry);
414 client.add_model_request_handler(Self::handle_rename_project_entry);
415 client.add_model_request_handler(Self::handle_copy_project_entry);
416 client.add_model_request_handler(Self::handle_delete_project_entry);
417 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
418 client.add_model_request_handler(Self::handle_apply_code_action);
419 client.add_model_request_handler(Self::handle_reload_buffers);
420 client.add_model_request_handler(Self::handle_synchronize_buffers);
421 client.add_model_request_handler(Self::handle_format_buffers);
422 client.add_model_request_handler(Self::handle_lsp_command::<GetCodeActions>);
423 client.add_model_request_handler(Self::handle_lsp_command::<GetCompletions>);
424 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
425 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
426 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
427 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
428 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
429 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
430 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
431 client.add_model_request_handler(Self::handle_search_project);
432 client.add_model_request_handler(Self::handle_get_project_symbols);
433 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
434 client.add_model_request_handler(Self::handle_open_buffer_by_id);
435 client.add_model_request_handler(Self::handle_open_buffer_by_path);
436 client.add_model_request_handler(Self::handle_save_buffer);
437 client.add_model_message_handler(Self::handle_update_diff_base);
438 }
439
440 pub fn local(
441 client: Arc<Client>,
442 user_store: ModelHandle<UserStore>,
443 languages: Arc<LanguageRegistry>,
444 fs: Arc<dyn Fs>,
445 cx: &mut AppContext,
446 ) -> ModelHandle<Self> {
447 cx.add_model(|cx: &mut ModelContext<Self>| {
448 let (tx, rx) = mpsc::unbounded();
449 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
450 .detach();
451 Self {
452 worktrees: Default::default(),
453 buffer_ordered_messages_tx: tx,
454 collaborators: Default::default(),
455 opened_buffers: Default::default(),
456 shared_buffers: Default::default(),
457 incomplete_remote_buffers: Default::default(),
458 loading_buffers_by_path: Default::default(),
459 loading_local_worktrees: Default::default(),
460 buffer_snapshots: Default::default(),
461 join_project_response_message_id: 0,
462 client_state: None,
463 opened_buffer: watch::channel(),
464 client_subscriptions: Vec::new(),
465 _subscriptions: vec![cx.observe_global::<Settings, _>(Self::on_settings_changed)],
466 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
467 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
468 active_entry: None,
469 languages,
470 client,
471 user_store,
472 fs,
473 next_entry_id: Default::default(),
474 next_diagnostic_group_id: Default::default(),
475 language_servers: Default::default(),
476 language_server_ids: Default::default(),
477 language_server_statuses: Default::default(),
478 last_workspace_edits_by_language_server: Default::default(),
479 buffers_being_formatted: Default::default(),
480 nonce: StdRng::from_entropy().gen(),
481 terminals: Terminals {
482 local_handles: Vec::new(),
483 },
484 copilot_enabled: Copilot::global(cx).is_some(),
485 }
486 })
487 }
488
489 pub async fn remote(
490 remote_id: u64,
491 client: Arc<Client>,
492 user_store: ModelHandle<UserStore>,
493 languages: Arc<LanguageRegistry>,
494 fs: Arc<dyn Fs>,
495 mut cx: AsyncAppContext,
496 ) -> Result<ModelHandle<Self>> {
497 client.authenticate_and_connect(true, &cx).await?;
498
499 let subscription = client.subscribe_to_entity(remote_id)?;
500 let response = client
501 .request_envelope(proto::JoinProject {
502 project_id: remote_id,
503 })
504 .await?;
505 let this = cx.add_model(|cx| {
506 let replica_id = response.payload.replica_id as ReplicaId;
507
508 let mut worktrees = Vec::new();
509 for worktree in response.payload.worktrees {
510 let worktree = cx.update(|cx| {
511 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx)
512 });
513 worktrees.push(worktree);
514 }
515
516 let (tx, rx) = mpsc::unbounded();
517 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
518 .detach();
519 let mut this = Self {
520 worktrees: Vec::new(),
521 buffer_ordered_messages_tx: tx,
522 loading_buffers_by_path: Default::default(),
523 opened_buffer: watch::channel(),
524 shared_buffers: Default::default(),
525 incomplete_remote_buffers: Default::default(),
526 loading_local_worktrees: Default::default(),
527 active_entry: None,
528 collaborators: Default::default(),
529 join_project_response_message_id: response.message_id,
530 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
531 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
532 languages,
533 user_store: user_store.clone(),
534 fs,
535 next_entry_id: Default::default(),
536 next_diagnostic_group_id: Default::default(),
537 client_subscriptions: Default::default(),
538 _subscriptions: Default::default(),
539 client: client.clone(),
540 client_state: Some(ProjectClientState::Remote {
541 sharing_has_stopped: false,
542 remote_id,
543 replica_id,
544 }),
545 language_servers: Default::default(),
546 language_server_ids: Default::default(),
547 language_server_statuses: response
548 .payload
549 .language_servers
550 .into_iter()
551 .map(|server| {
552 (
553 LanguageServerId(server.id as usize),
554 LanguageServerStatus {
555 name: server.name,
556 pending_work: Default::default(),
557 has_pending_diagnostic_updates: false,
558 progress_tokens: Default::default(),
559 },
560 )
561 })
562 .collect(),
563 last_workspace_edits_by_language_server: Default::default(),
564 opened_buffers: Default::default(),
565 buffers_being_formatted: Default::default(),
566 buffer_snapshots: Default::default(),
567 nonce: StdRng::from_entropy().gen(),
568 terminals: Terminals {
569 local_handles: Vec::new(),
570 },
571 copilot_enabled: Copilot::global(cx).is_some(),
572 };
573 for worktree in worktrees {
574 let _ = this.add_worktree(&worktree, cx);
575 }
576 this
577 });
578 let subscription = subscription.set_model(&this, &mut cx);
579
580 let user_ids = response
581 .payload
582 .collaborators
583 .iter()
584 .map(|peer| peer.user_id)
585 .collect();
586 user_store
587 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
588 .await?;
589
590 this.update(&mut cx, |this, cx| {
591 this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
592 this.client_subscriptions.push(subscription);
593 anyhow::Ok(())
594 })?;
595
596 Ok(this)
597 }
598
599 #[cfg(any(test, feature = "test-support"))]
600 pub async fn test(
601 fs: Arc<dyn Fs>,
602 root_paths: impl IntoIterator<Item = &Path>,
603 cx: &mut gpui::TestAppContext,
604 ) -> ModelHandle<Project> {
605 if !cx.read(|cx| cx.has_global::<Settings>()) {
606 cx.update(|cx| {
607 cx.set_global(Settings::test(cx));
608 });
609 }
610
611 let mut languages = LanguageRegistry::test();
612 languages.set_executor(cx.background());
613 let http_client = util::http::FakeHttpClient::with_404_response();
614 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
615 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
616 let project =
617 cx.update(|cx| Project::local(client, user_store, Arc::new(languages), fs, cx));
618 for path in root_paths {
619 let (tree, _) = project
620 .update(cx, |project, cx| {
621 project.find_or_create_local_worktree(path, true, cx)
622 })
623 .await
624 .unwrap();
625 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
626 .await;
627 }
628 project
629 }
630
631 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
632 let settings = cx.global::<Settings>();
633
634 let mut language_servers_to_start = Vec::new();
635 for buffer in self.opened_buffers.values() {
636 if let Some(buffer) = buffer.upgrade(cx) {
637 let buffer = buffer.read(cx);
638 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
639 {
640 if settings.enable_language_server(Some(&language.name())) {
641 let worktree = file.worktree.read(cx);
642 language_servers_to_start.push((
643 worktree.id(),
644 worktree.as_local().unwrap().abs_path().clone(),
645 language.clone(),
646 ));
647 }
648 }
649 }
650 }
651
652 let mut language_servers_to_stop = Vec::new();
653 for language in self.languages.to_vec() {
654 for lsp_adapter in language.lsp_adapters() {
655 if !settings.enable_language_server(Some(&language.name())) {
656 let lsp_name = &lsp_adapter.name;
657 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
658 if lsp_name == started_lsp_name {
659 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
660 }
661 }
662 }
663 }
664 }
665
666 // Stop all newly-disabled language servers.
667 for (worktree_id, adapter_name) in language_servers_to_stop {
668 self.stop_language_server(worktree_id, adapter_name, cx)
669 .detach();
670 }
671
672 // Start all the newly-enabled language servers.
673 for (worktree_id, worktree_path, language) in language_servers_to_start {
674 self.start_language_servers(worktree_id, worktree_path, language, cx);
675 }
676
677 if !self.copilot_enabled && Copilot::global(cx).is_some() {
678 self.copilot_enabled = true;
679 for buffer in self.opened_buffers.values() {
680 if let Some(buffer) = buffer.upgrade(cx) {
681 self.register_buffer_with_copilot(&buffer, cx);
682 }
683 }
684 }
685
686 cx.notify();
687 }
688
689 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
690 self.opened_buffers
691 .get(&remote_id)
692 .and_then(|buffer| buffer.upgrade(cx))
693 }
694
695 pub fn languages(&self) -> &Arc<LanguageRegistry> {
696 &self.languages
697 }
698
699 pub fn client(&self) -> Arc<Client> {
700 self.client.clone()
701 }
702
703 pub fn user_store(&self) -> ModelHandle<UserStore> {
704 self.user_store.clone()
705 }
706
707 #[cfg(any(test, feature = "test-support"))]
708 pub fn opened_buffers(&self, cx: &AppContext) -> Vec<ModelHandle<Buffer>> {
709 self.opened_buffers
710 .values()
711 .filter_map(|b| b.upgrade(cx))
712 .collect()
713 }
714
715 #[cfg(any(test, feature = "test-support"))]
716 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
717 let path = path.into();
718 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
719 self.opened_buffers.iter().any(|(_, buffer)| {
720 if let Some(buffer) = buffer.upgrade(cx) {
721 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
722 if file.worktree == worktree && file.path() == &path.path {
723 return true;
724 }
725 }
726 }
727 false
728 })
729 } else {
730 false
731 }
732 }
733
734 pub fn fs(&self) -> &Arc<dyn Fs> {
735 &self.fs
736 }
737
738 pub fn remote_id(&self) -> Option<u64> {
739 match self.client_state.as_ref()? {
740 ProjectClientState::Local { remote_id, .. }
741 | ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
742 }
743 }
744
745 pub fn replica_id(&self) -> ReplicaId {
746 match &self.client_state {
747 Some(ProjectClientState::Remote { replica_id, .. }) => *replica_id,
748 _ => 0,
749 }
750 }
751
752 fn metadata_changed(&mut self, cx: &mut ModelContext<Self>) {
753 if let Some(ProjectClientState::Local { updates_tx, .. }) = &mut self.client_state {
754 updates_tx
755 .unbounded_send(LocalProjectUpdate::WorktreesChanged)
756 .ok();
757 }
758 cx.notify();
759 }
760
761 pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
762 &self.collaborators
763 }
764
765 /// Collect all worktrees, including ones that don't appear in the project panel
766 pub fn worktrees<'a>(
767 &'a self,
768 cx: &'a AppContext,
769 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
770 self.worktrees
771 .iter()
772 .filter_map(move |worktree| worktree.upgrade(cx))
773 }
774
775 /// Collect all user-visible worktrees, the ones that appear in the project panel
776 pub fn visible_worktrees<'a>(
777 &'a self,
778 cx: &'a AppContext,
779 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
780 self.worktrees.iter().filter_map(|worktree| {
781 worktree.upgrade(cx).and_then(|worktree| {
782 if worktree.read(cx).is_visible() {
783 Some(worktree)
784 } else {
785 None
786 }
787 })
788 })
789 }
790
791 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
792 self.visible_worktrees(cx)
793 .map(|tree| tree.read(cx).root_name())
794 }
795
796 pub fn worktree_for_id(
797 &self,
798 id: WorktreeId,
799 cx: &AppContext,
800 ) -> Option<ModelHandle<Worktree>> {
801 self.worktrees(cx)
802 .find(|worktree| worktree.read(cx).id() == id)
803 }
804
805 pub fn worktree_for_entry(
806 &self,
807 entry_id: ProjectEntryId,
808 cx: &AppContext,
809 ) -> Option<ModelHandle<Worktree>> {
810 self.worktrees(cx)
811 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
812 }
813
814 pub fn worktree_id_for_entry(
815 &self,
816 entry_id: ProjectEntryId,
817 cx: &AppContext,
818 ) -> Option<WorktreeId> {
819 self.worktree_for_entry(entry_id, cx)
820 .map(|worktree| worktree.read(cx).id())
821 }
822
823 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
824 paths.iter().all(|path| self.contains_path(path, cx))
825 }
826
827 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
828 for worktree in self.worktrees(cx) {
829 let worktree = worktree.read(cx).as_local();
830 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
831 return true;
832 }
833 }
834 false
835 }
836
837 pub fn create_entry(
838 &mut self,
839 project_path: impl Into<ProjectPath>,
840 is_directory: bool,
841 cx: &mut ModelContext<Self>,
842 ) -> Option<Task<Result<Entry>>> {
843 let project_path = project_path.into();
844 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
845 if self.is_local() {
846 Some(worktree.update(cx, |worktree, cx| {
847 worktree
848 .as_local_mut()
849 .unwrap()
850 .create_entry(project_path.path, is_directory, cx)
851 }))
852 } else {
853 let client = self.client.clone();
854 let project_id = self.remote_id().unwrap();
855 Some(cx.spawn_weak(|_, mut cx| async move {
856 let response = client
857 .request(proto::CreateProjectEntry {
858 worktree_id: project_path.worktree_id.to_proto(),
859 project_id,
860 path: project_path.path.to_string_lossy().into(),
861 is_directory,
862 })
863 .await?;
864 let entry = response
865 .entry
866 .ok_or_else(|| anyhow!("missing entry in response"))?;
867 worktree
868 .update(&mut cx, |worktree, cx| {
869 worktree.as_remote_mut().unwrap().insert_entry(
870 entry,
871 response.worktree_scan_id as usize,
872 cx,
873 )
874 })
875 .await
876 }))
877 }
878 }
879
880 pub fn copy_entry(
881 &mut self,
882 entry_id: ProjectEntryId,
883 new_path: impl Into<Arc<Path>>,
884 cx: &mut ModelContext<Self>,
885 ) -> Option<Task<Result<Entry>>> {
886 let worktree = self.worktree_for_entry(entry_id, cx)?;
887 let new_path = new_path.into();
888 if self.is_local() {
889 worktree.update(cx, |worktree, cx| {
890 worktree
891 .as_local_mut()
892 .unwrap()
893 .copy_entry(entry_id, new_path, cx)
894 })
895 } else {
896 let client = self.client.clone();
897 let project_id = self.remote_id().unwrap();
898
899 Some(cx.spawn_weak(|_, mut cx| async move {
900 let response = client
901 .request(proto::CopyProjectEntry {
902 project_id,
903 entry_id: entry_id.to_proto(),
904 new_path: new_path.to_string_lossy().into(),
905 })
906 .await?;
907 let entry = response
908 .entry
909 .ok_or_else(|| anyhow!("missing entry in response"))?;
910 worktree
911 .update(&mut cx, |worktree, cx| {
912 worktree.as_remote_mut().unwrap().insert_entry(
913 entry,
914 response.worktree_scan_id as usize,
915 cx,
916 )
917 })
918 .await
919 }))
920 }
921 }
922
923 pub fn rename_entry(
924 &mut self,
925 entry_id: ProjectEntryId,
926 new_path: impl Into<Arc<Path>>,
927 cx: &mut ModelContext<Self>,
928 ) -> Option<Task<Result<Entry>>> {
929 let worktree = self.worktree_for_entry(entry_id, cx)?;
930 let new_path = new_path.into();
931 if self.is_local() {
932 worktree.update(cx, |worktree, cx| {
933 worktree
934 .as_local_mut()
935 .unwrap()
936 .rename_entry(entry_id, new_path, cx)
937 })
938 } else {
939 let client = self.client.clone();
940 let project_id = self.remote_id().unwrap();
941
942 Some(cx.spawn_weak(|_, mut cx| async move {
943 let response = client
944 .request(proto::RenameProjectEntry {
945 project_id,
946 entry_id: entry_id.to_proto(),
947 new_path: new_path.to_string_lossy().into(),
948 })
949 .await?;
950 let entry = response
951 .entry
952 .ok_or_else(|| anyhow!("missing entry in response"))?;
953 worktree
954 .update(&mut cx, |worktree, cx| {
955 worktree.as_remote_mut().unwrap().insert_entry(
956 entry,
957 response.worktree_scan_id as usize,
958 cx,
959 )
960 })
961 .await
962 }))
963 }
964 }
965
966 pub fn delete_entry(
967 &mut self,
968 entry_id: ProjectEntryId,
969 cx: &mut ModelContext<Self>,
970 ) -> Option<Task<Result<()>>> {
971 let worktree = self.worktree_for_entry(entry_id, cx)?;
972 if self.is_local() {
973 worktree.update(cx, |worktree, cx| {
974 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
975 })
976 } else {
977 let client = self.client.clone();
978 let project_id = self.remote_id().unwrap();
979 Some(cx.spawn_weak(|_, mut cx| async move {
980 let response = client
981 .request(proto::DeleteProjectEntry {
982 project_id,
983 entry_id: entry_id.to_proto(),
984 })
985 .await?;
986 worktree
987 .update(&mut cx, move |worktree, cx| {
988 worktree.as_remote_mut().unwrap().delete_entry(
989 entry_id,
990 response.worktree_scan_id as usize,
991 cx,
992 )
993 })
994 .await
995 }))
996 }
997 }
998
999 pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Result<()> {
1000 if self.client_state.is_some() {
1001 return Err(anyhow!("project was already shared"));
1002 }
1003 self.client_subscriptions.push(
1004 self.client
1005 .subscribe_to_entity(project_id)?
1006 .set_model(&cx.handle(), &mut cx.to_async()),
1007 );
1008
1009 for open_buffer in self.opened_buffers.values_mut() {
1010 match open_buffer {
1011 OpenBuffer::Strong(_) => {}
1012 OpenBuffer::Weak(buffer) => {
1013 if let Some(buffer) = buffer.upgrade(cx) {
1014 *open_buffer = OpenBuffer::Strong(buffer);
1015 }
1016 }
1017 OpenBuffer::Operations(_) => unreachable!(),
1018 }
1019 }
1020
1021 for worktree_handle in self.worktrees.iter_mut() {
1022 match worktree_handle {
1023 WorktreeHandle::Strong(_) => {}
1024 WorktreeHandle::Weak(worktree) => {
1025 if let Some(worktree) = worktree.upgrade(cx) {
1026 *worktree_handle = WorktreeHandle::Strong(worktree);
1027 }
1028 }
1029 }
1030 }
1031
1032 for (server_id, status) in &self.language_server_statuses {
1033 self.client
1034 .send(proto::StartLanguageServer {
1035 project_id,
1036 server: Some(proto::LanguageServer {
1037 id: server_id.0 as u64,
1038 name: status.name.clone(),
1039 }),
1040 })
1041 .log_err();
1042 }
1043
1044 let (updates_tx, mut updates_rx) = mpsc::unbounded();
1045 let client = self.client.clone();
1046 self.client_state = Some(ProjectClientState::Local {
1047 remote_id: project_id,
1048 updates_tx,
1049 _send_updates: cx.spawn_weak(move |this, mut cx| async move {
1050 while let Some(update) = updates_rx.next().await {
1051 let Some(this) = this.upgrade(&cx) else { break };
1052
1053 match update {
1054 LocalProjectUpdate::WorktreesChanged => {
1055 let worktrees = this
1056 .read_with(&cx, |this, cx| this.worktrees(cx).collect::<Vec<_>>());
1057 let update_project = this
1058 .read_with(&cx, |this, cx| {
1059 this.client.request(proto::UpdateProject {
1060 project_id,
1061 worktrees: this.worktree_metadata_protos(cx),
1062 })
1063 })
1064 .await;
1065 if update_project.is_ok() {
1066 for worktree in worktrees {
1067 worktree.update(&mut cx, |worktree, cx| {
1068 let worktree = worktree.as_local_mut().unwrap();
1069 worktree.share(project_id, cx).detach_and_log_err(cx)
1070 });
1071 }
1072 }
1073 }
1074 LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id } => {
1075 let buffer = this.update(&mut cx, |this, _| {
1076 let buffer = this.opened_buffers.get(&buffer_id).unwrap();
1077 let shared_buffers =
1078 this.shared_buffers.entry(peer_id).or_default();
1079 if shared_buffers.insert(buffer_id) {
1080 if let OpenBuffer::Strong(buffer) = buffer {
1081 Some(buffer.clone())
1082 } else {
1083 None
1084 }
1085 } else {
1086 None
1087 }
1088 });
1089
1090 let Some(buffer) = buffer else { continue };
1091 let operations =
1092 buffer.read_with(&cx, |b, cx| b.serialize_ops(None, cx));
1093 let operations = operations.await;
1094 let state = buffer.read_with(&cx, |buffer, _| buffer.to_proto());
1095
1096 let initial_state = proto::CreateBufferForPeer {
1097 project_id,
1098 peer_id: Some(peer_id),
1099 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
1100 };
1101 if client.send(initial_state).log_err().is_some() {
1102 let client = client.clone();
1103 cx.background()
1104 .spawn(async move {
1105 let mut chunks = split_operations(operations).peekable();
1106 while let Some(chunk) = chunks.next() {
1107 let is_last = chunks.peek().is_none();
1108 client.send(proto::CreateBufferForPeer {
1109 project_id,
1110 peer_id: Some(peer_id),
1111 variant: Some(
1112 proto::create_buffer_for_peer::Variant::Chunk(
1113 proto::BufferChunk {
1114 buffer_id,
1115 operations: chunk,
1116 is_last,
1117 },
1118 ),
1119 ),
1120 })?;
1121 }
1122 anyhow::Ok(())
1123 })
1124 .await
1125 .log_err();
1126 }
1127 }
1128 }
1129 }
1130 }),
1131 });
1132
1133 self.metadata_changed(cx);
1134 cx.emit(Event::RemoteIdChanged(Some(project_id)));
1135 cx.notify();
1136 Ok(())
1137 }
1138
1139 pub fn reshared(
1140 &mut self,
1141 message: proto::ResharedProject,
1142 cx: &mut ModelContext<Self>,
1143 ) -> Result<()> {
1144 self.shared_buffers.clear();
1145 self.set_collaborators_from_proto(message.collaborators, cx)?;
1146 self.metadata_changed(cx);
1147 Ok(())
1148 }
1149
1150 pub fn rejoined(
1151 &mut self,
1152 message: proto::RejoinedProject,
1153 message_id: u32,
1154 cx: &mut ModelContext<Self>,
1155 ) -> Result<()> {
1156 self.join_project_response_message_id = message_id;
1157 self.set_worktrees_from_proto(message.worktrees, cx)?;
1158 self.set_collaborators_from_proto(message.collaborators, cx)?;
1159 self.language_server_statuses = message
1160 .language_servers
1161 .into_iter()
1162 .map(|server| {
1163 (
1164 LanguageServerId(server.id as usize),
1165 LanguageServerStatus {
1166 name: server.name,
1167 pending_work: Default::default(),
1168 has_pending_diagnostic_updates: false,
1169 progress_tokens: Default::default(),
1170 },
1171 )
1172 })
1173 .collect();
1174 self.buffer_ordered_messages_tx
1175 .unbounded_send(BufferOrderedMessage::Resync)
1176 .unwrap();
1177 cx.notify();
1178 Ok(())
1179 }
1180
1181 pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1182 self.unshare_internal(cx)?;
1183 self.metadata_changed(cx);
1184 cx.notify();
1185 Ok(())
1186 }
1187
1188 fn unshare_internal(&mut self, cx: &mut AppContext) -> Result<()> {
1189 if self.is_remote() {
1190 return Err(anyhow!("attempted to unshare a remote project"));
1191 }
1192
1193 if let Some(ProjectClientState::Local { remote_id, .. }) = self.client_state.take() {
1194 self.collaborators.clear();
1195 self.shared_buffers.clear();
1196 self.client_subscriptions.clear();
1197
1198 for worktree_handle in self.worktrees.iter_mut() {
1199 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1200 let is_visible = worktree.update(cx, |worktree, _| {
1201 worktree.as_local_mut().unwrap().unshare();
1202 worktree.is_visible()
1203 });
1204 if !is_visible {
1205 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1206 }
1207 }
1208 }
1209
1210 for open_buffer in self.opened_buffers.values_mut() {
1211 // Wake up any tasks waiting for peers' edits to this buffer.
1212 if let Some(buffer) = open_buffer.upgrade(cx) {
1213 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1214 }
1215
1216 if let OpenBuffer::Strong(buffer) = open_buffer {
1217 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1218 }
1219 }
1220
1221 self.client.send(proto::UnshareProject {
1222 project_id: remote_id,
1223 })?;
1224
1225 Ok(())
1226 } else {
1227 Err(anyhow!("attempted to unshare an unshared project"))
1228 }
1229 }
1230
1231 pub fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1232 self.disconnected_from_host_internal(cx);
1233 cx.emit(Event::DisconnectedFromHost);
1234 cx.notify();
1235 }
1236
1237 fn disconnected_from_host_internal(&mut self, cx: &mut AppContext) {
1238 if let Some(ProjectClientState::Remote {
1239 sharing_has_stopped,
1240 ..
1241 }) = &mut self.client_state
1242 {
1243 *sharing_has_stopped = true;
1244
1245 self.collaborators.clear();
1246
1247 for worktree in &self.worktrees {
1248 if let Some(worktree) = worktree.upgrade(cx) {
1249 worktree.update(cx, |worktree, _| {
1250 if let Some(worktree) = worktree.as_remote_mut() {
1251 worktree.disconnected_from_host();
1252 }
1253 });
1254 }
1255 }
1256
1257 for open_buffer in self.opened_buffers.values_mut() {
1258 // Wake up any tasks waiting for peers' edits to this buffer.
1259 if let Some(buffer) = open_buffer.upgrade(cx) {
1260 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1261 }
1262
1263 if let OpenBuffer::Strong(buffer) = open_buffer {
1264 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1265 }
1266 }
1267
1268 // Wake up all futures currently waiting on a buffer to get opened,
1269 // to give them a chance to fail now that we've disconnected.
1270 *self.opened_buffer.0.borrow_mut() = ();
1271 }
1272 }
1273
1274 pub fn close(&mut self, cx: &mut ModelContext<Self>) {
1275 cx.emit(Event::Closed);
1276 }
1277
1278 pub fn is_read_only(&self) -> bool {
1279 match &self.client_state {
1280 Some(ProjectClientState::Remote {
1281 sharing_has_stopped,
1282 ..
1283 }) => *sharing_has_stopped,
1284 _ => false,
1285 }
1286 }
1287
1288 pub fn is_local(&self) -> bool {
1289 match &self.client_state {
1290 Some(ProjectClientState::Remote { .. }) => false,
1291 _ => true,
1292 }
1293 }
1294
1295 pub fn is_remote(&self) -> bool {
1296 !self.is_local()
1297 }
1298
1299 pub fn create_buffer(
1300 &mut self,
1301 text: &str,
1302 language: Option<Arc<Language>>,
1303 cx: &mut ModelContext<Self>,
1304 ) -> Result<ModelHandle<Buffer>> {
1305 if self.is_remote() {
1306 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1307 }
1308
1309 let buffer = cx.add_model(|cx| {
1310 Buffer::new(self.replica_id(), text, cx)
1311 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1312 });
1313 self.register_buffer(&buffer, cx)?;
1314 Ok(buffer)
1315 }
1316
1317 pub fn open_path(
1318 &mut self,
1319 path: impl Into<ProjectPath>,
1320 cx: &mut ModelContext<Self>,
1321 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1322 let task = self.open_buffer(path, cx);
1323 cx.spawn_weak(|_, cx| async move {
1324 let buffer = task.await?;
1325 let project_entry_id = buffer
1326 .read_with(&cx, |buffer, cx| {
1327 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1328 })
1329 .ok_or_else(|| anyhow!("no project entry"))?;
1330
1331 let buffer: &AnyModelHandle = &buffer;
1332 Ok((project_entry_id, buffer.clone()))
1333 })
1334 }
1335
1336 pub fn open_local_buffer(
1337 &mut self,
1338 abs_path: impl AsRef<Path>,
1339 cx: &mut ModelContext<Self>,
1340 ) -> Task<Result<ModelHandle<Buffer>>> {
1341 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1342 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1343 } else {
1344 Task::ready(Err(anyhow!("no such path")))
1345 }
1346 }
1347
1348 pub fn open_buffer(
1349 &mut self,
1350 path: impl Into<ProjectPath>,
1351 cx: &mut ModelContext<Self>,
1352 ) -> Task<Result<ModelHandle<Buffer>>> {
1353 let project_path = path.into();
1354 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1355 worktree
1356 } else {
1357 return Task::ready(Err(anyhow!("no such worktree")));
1358 };
1359
1360 // If there is already a buffer for the given path, then return it.
1361 let existing_buffer = self.get_open_buffer(&project_path, cx);
1362 if let Some(existing_buffer) = existing_buffer {
1363 return Task::ready(Ok(existing_buffer));
1364 }
1365
1366 let mut loading_watch = match self.loading_buffers_by_path.entry(project_path.clone()) {
1367 // If the given path is already being loaded, then wait for that existing
1368 // task to complete and return the same buffer.
1369 hash_map::Entry::Occupied(e) => e.get().clone(),
1370
1371 // Otherwise, record the fact that this path is now being loaded.
1372 hash_map::Entry::Vacant(entry) => {
1373 let (mut tx, rx) = postage::watch::channel();
1374 entry.insert(rx.clone());
1375
1376 let load_buffer = if worktree.read(cx).is_local() {
1377 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1378 } else {
1379 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1380 };
1381
1382 cx.spawn(move |this, mut cx| async move {
1383 let load_result = load_buffer.await;
1384 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1385 // Record the fact that the buffer is no longer loading.
1386 this.loading_buffers_by_path.remove(&project_path);
1387 let buffer = load_result.map_err(Arc::new)?;
1388 Ok(buffer)
1389 }));
1390 })
1391 .detach();
1392 rx
1393 }
1394 };
1395
1396 cx.foreground().spawn(async move {
1397 loop {
1398 if let Some(result) = loading_watch.borrow().as_ref() {
1399 match result {
1400 Ok(buffer) => return Ok(buffer.clone()),
1401 Err(error) => return Err(anyhow!("{}", error)),
1402 }
1403 }
1404 loading_watch.next().await;
1405 }
1406 })
1407 }
1408
1409 fn open_local_buffer_internal(
1410 &mut self,
1411 path: &Arc<Path>,
1412 worktree: &ModelHandle<Worktree>,
1413 cx: &mut ModelContext<Self>,
1414 ) -> Task<Result<ModelHandle<Buffer>>> {
1415 let load_buffer = worktree.update(cx, |worktree, cx| {
1416 let worktree = worktree.as_local_mut().unwrap();
1417 worktree.load_buffer(path, cx)
1418 });
1419 cx.spawn(|this, mut cx| async move {
1420 let buffer = load_buffer.await?;
1421 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1422 Ok(buffer)
1423 })
1424 }
1425
1426 fn open_remote_buffer_internal(
1427 &mut self,
1428 path: &Arc<Path>,
1429 worktree: &ModelHandle<Worktree>,
1430 cx: &mut ModelContext<Self>,
1431 ) -> Task<Result<ModelHandle<Buffer>>> {
1432 let rpc = self.client.clone();
1433 let project_id = self.remote_id().unwrap();
1434 let remote_worktree_id = worktree.read(cx).id();
1435 let path = path.clone();
1436 let path_string = path.to_string_lossy().to_string();
1437 cx.spawn(|this, mut cx| async move {
1438 let response = rpc
1439 .request(proto::OpenBufferByPath {
1440 project_id,
1441 worktree_id: remote_worktree_id.to_proto(),
1442 path: path_string,
1443 })
1444 .await?;
1445 this.update(&mut cx, |this, cx| {
1446 this.wait_for_remote_buffer(response.buffer_id, cx)
1447 })
1448 .await
1449 })
1450 }
1451
1452 /// LanguageServerName is owned, because it is inserted into a map
1453 fn open_local_buffer_via_lsp(
1454 &mut self,
1455 abs_path: lsp::Url,
1456 language_server_id: LanguageServerId,
1457 language_server_name: LanguageServerName,
1458 cx: &mut ModelContext<Self>,
1459 ) -> Task<Result<ModelHandle<Buffer>>> {
1460 cx.spawn(|this, mut cx| async move {
1461 let abs_path = abs_path
1462 .to_file_path()
1463 .map_err(|_| anyhow!("can't convert URI to path"))?;
1464 let (worktree, relative_path) = if let Some(result) =
1465 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1466 {
1467 result
1468 } else {
1469 let worktree = this
1470 .update(&mut cx, |this, cx| {
1471 this.create_local_worktree(&abs_path, false, cx)
1472 })
1473 .await?;
1474 this.update(&mut cx, |this, cx| {
1475 this.language_server_ids.insert(
1476 (worktree.read(cx).id(), language_server_name),
1477 language_server_id,
1478 );
1479 });
1480 (worktree, PathBuf::new())
1481 };
1482
1483 let project_path = ProjectPath {
1484 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1485 path: relative_path.into(),
1486 };
1487 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1488 .await
1489 })
1490 }
1491
1492 pub fn open_buffer_by_id(
1493 &mut self,
1494 id: u64,
1495 cx: &mut ModelContext<Self>,
1496 ) -> Task<Result<ModelHandle<Buffer>>> {
1497 if let Some(buffer) = self.buffer_for_id(id, cx) {
1498 Task::ready(Ok(buffer))
1499 } else if self.is_local() {
1500 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1501 } else if let Some(project_id) = self.remote_id() {
1502 let request = self
1503 .client
1504 .request(proto::OpenBufferById { project_id, id });
1505 cx.spawn(|this, mut cx| async move {
1506 let buffer_id = request.await?.buffer_id;
1507 this.update(&mut cx, |this, cx| {
1508 this.wait_for_remote_buffer(buffer_id, cx)
1509 })
1510 .await
1511 })
1512 } else {
1513 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1514 }
1515 }
1516
1517 pub fn save_buffers(
1518 &self,
1519 buffers: HashSet<ModelHandle<Buffer>>,
1520 cx: &mut ModelContext<Self>,
1521 ) -> Task<Result<()>> {
1522 cx.spawn(|this, mut cx| async move {
1523 let save_tasks = buffers
1524 .into_iter()
1525 .map(|buffer| this.update(&mut cx, |this, cx| this.save_buffer(buffer, cx)));
1526 try_join_all(save_tasks).await?;
1527 Ok(())
1528 })
1529 }
1530
1531 pub fn save_buffer(
1532 &self,
1533 buffer: ModelHandle<Buffer>,
1534 cx: &mut ModelContext<Self>,
1535 ) -> Task<Result<(clock::Global, RopeFingerprint, SystemTime)>> {
1536 let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1537 return Task::ready(Err(anyhow!("buffer doesn't have a file")));
1538 };
1539 let worktree = file.worktree.clone();
1540 let path = file.path.clone();
1541 worktree.update(cx, |worktree, cx| match worktree {
1542 Worktree::Local(worktree) => worktree.save_buffer(buffer, path, false, cx),
1543 Worktree::Remote(worktree) => worktree.save_buffer(buffer, cx),
1544 })
1545 }
1546
1547 pub fn save_buffer_as(
1548 &mut self,
1549 buffer: ModelHandle<Buffer>,
1550 abs_path: PathBuf,
1551 cx: &mut ModelContext<Self>,
1552 ) -> Task<Result<()>> {
1553 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1554 let old_file = File::from_dyn(buffer.read(cx).file())
1555 .filter(|f| f.is_local())
1556 .cloned();
1557 cx.spawn(|this, mut cx| async move {
1558 if let Some(old_file) = &old_file {
1559 this.update(&mut cx, |this, cx| {
1560 this.unregister_buffer_from_language_servers(&buffer, old_file, cx);
1561 });
1562 }
1563 let (worktree, path) = worktree_task.await?;
1564 worktree
1565 .update(&mut cx, |worktree, cx| match worktree {
1566 Worktree::Local(worktree) => {
1567 worktree.save_buffer(buffer.clone(), path.into(), true, cx)
1568 }
1569 Worktree::Remote(_) => panic!("cannot remote buffers as new files"),
1570 })
1571 .await?;
1572 this.update(&mut cx, |this, cx| {
1573 this.detect_language_for_buffer(&buffer, cx);
1574 this.register_buffer_with_language_servers(&buffer, cx);
1575 });
1576 Ok(())
1577 })
1578 }
1579
1580 pub fn get_open_buffer(
1581 &mut self,
1582 path: &ProjectPath,
1583 cx: &mut ModelContext<Self>,
1584 ) -> Option<ModelHandle<Buffer>> {
1585 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1586 self.opened_buffers.values().find_map(|buffer| {
1587 let buffer = buffer.upgrade(cx)?;
1588 let file = File::from_dyn(buffer.read(cx).file())?;
1589 if file.worktree == worktree && file.path() == &path.path {
1590 Some(buffer)
1591 } else {
1592 None
1593 }
1594 })
1595 }
1596
1597 fn register_buffer(
1598 &mut self,
1599 buffer: &ModelHandle<Buffer>,
1600 cx: &mut ModelContext<Self>,
1601 ) -> Result<()> {
1602 buffer.update(cx, |buffer, _| {
1603 buffer.set_language_registry(self.languages.clone())
1604 });
1605
1606 let remote_id = buffer.read(cx).remote_id();
1607 let is_remote = self.is_remote();
1608 let open_buffer = if is_remote || self.is_shared() {
1609 OpenBuffer::Strong(buffer.clone())
1610 } else {
1611 OpenBuffer::Weak(buffer.downgrade())
1612 };
1613
1614 match self.opened_buffers.entry(remote_id) {
1615 hash_map::Entry::Vacant(entry) => {
1616 entry.insert(open_buffer);
1617 }
1618 hash_map::Entry::Occupied(mut entry) => {
1619 if let OpenBuffer::Operations(operations) = entry.get_mut() {
1620 buffer.update(cx, |b, cx| b.apply_ops(operations.drain(..), cx))?;
1621 } else if entry.get().upgrade(cx).is_some() {
1622 if is_remote {
1623 return Ok(());
1624 } else {
1625 debug_panic!("buffer {} was already registered", remote_id);
1626 Err(anyhow!("buffer {} was already registered", remote_id))?;
1627 }
1628 }
1629 entry.insert(open_buffer);
1630 }
1631 }
1632 cx.subscribe(buffer, |this, buffer, event, cx| {
1633 this.on_buffer_event(buffer, event, cx);
1634 })
1635 .detach();
1636
1637 self.detect_language_for_buffer(buffer, cx);
1638 self.register_buffer_with_language_servers(buffer, cx);
1639 self.register_buffer_with_copilot(buffer, cx);
1640 cx.observe_release(buffer, |this, buffer, cx| {
1641 if let Some(file) = File::from_dyn(buffer.file()) {
1642 if file.is_local() {
1643 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1644 for server in this.language_servers_for_buffer(buffer, cx) {
1645 server
1646 .1
1647 .notify::<lsp::notification::DidCloseTextDocument>(
1648 lsp::DidCloseTextDocumentParams {
1649 text_document: lsp::TextDocumentIdentifier::new(uri.clone()),
1650 },
1651 )
1652 .log_err();
1653 }
1654 }
1655 }
1656 })
1657 .detach();
1658
1659 *self.opened_buffer.0.borrow_mut() = ();
1660 Ok(())
1661 }
1662
1663 fn register_buffer_with_language_servers(
1664 &mut self,
1665 buffer_handle: &ModelHandle<Buffer>,
1666 cx: &mut ModelContext<Self>,
1667 ) {
1668 let buffer = buffer_handle.read(cx);
1669 let buffer_id = buffer.remote_id();
1670
1671 if let Some(file) = File::from_dyn(buffer.file()) {
1672 if !file.is_local() {
1673 return;
1674 }
1675
1676 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1677 let initial_snapshot = buffer.text_snapshot();
1678 let language = buffer.language().cloned();
1679 let worktree_id = file.worktree_id(cx);
1680
1681 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1682 for (server_id, diagnostics) in local_worktree.diagnostics_for_path(file.path()) {
1683 self.update_buffer_diagnostics(buffer_handle, server_id, None, diagnostics, cx)
1684 .log_err();
1685 }
1686 }
1687
1688 if let Some(language) = language {
1689 for adapter in language.lsp_adapters() {
1690 let language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1691 let server = self
1692 .language_server_ids
1693 .get(&(worktree_id, adapter.name.clone()))
1694 .and_then(|id| self.language_servers.get(id))
1695 .and_then(|server_state| {
1696 if let LanguageServerState::Running { server, .. } = server_state {
1697 Some(server.clone())
1698 } else {
1699 None
1700 }
1701 });
1702 let server = match server {
1703 Some(server) => server,
1704 None => continue,
1705 };
1706
1707 server
1708 .notify::<lsp::notification::DidOpenTextDocument>(
1709 lsp::DidOpenTextDocumentParams {
1710 text_document: lsp::TextDocumentItem::new(
1711 uri.clone(),
1712 language_id.unwrap_or_default(),
1713 0,
1714 initial_snapshot.text(),
1715 ),
1716 },
1717 )
1718 .log_err();
1719
1720 buffer_handle.update(cx, |buffer, cx| {
1721 buffer.set_completion_triggers(
1722 server
1723 .capabilities()
1724 .completion_provider
1725 .as_ref()
1726 .and_then(|provider| provider.trigger_characters.clone())
1727 .unwrap_or_default(),
1728 cx,
1729 );
1730 });
1731
1732 let snapshot = LspBufferSnapshot {
1733 version: 0,
1734 snapshot: initial_snapshot.clone(),
1735 };
1736 self.buffer_snapshots
1737 .entry(buffer_id)
1738 .or_default()
1739 .insert(server.server_id(), vec![snapshot]);
1740 }
1741 }
1742 }
1743 }
1744
1745 fn unregister_buffer_from_language_servers(
1746 &mut self,
1747 buffer: &ModelHandle<Buffer>,
1748 old_file: &File,
1749 cx: &mut ModelContext<Self>,
1750 ) {
1751 let old_path = match old_file.as_local() {
1752 Some(local) => local.abs_path(cx),
1753 None => return,
1754 };
1755
1756 buffer.update(cx, |buffer, cx| {
1757 let worktree_id = old_file.worktree_id(cx);
1758 let ids = &self.language_server_ids;
1759
1760 let language = buffer.language().cloned();
1761 let adapters = language.iter().flat_map(|language| language.lsp_adapters());
1762 for &server_id in adapters.flat_map(|a| ids.get(&(worktree_id, a.name.clone()))) {
1763 buffer.update_diagnostics(server_id, Default::default(), cx);
1764 }
1765
1766 self.buffer_snapshots.remove(&buffer.remote_id());
1767 let file_url = lsp::Url::from_file_path(old_path).unwrap();
1768 for (_, language_server) in self.language_servers_for_buffer(buffer, cx) {
1769 language_server
1770 .notify::<lsp::notification::DidCloseTextDocument>(
1771 lsp::DidCloseTextDocumentParams {
1772 text_document: lsp::TextDocumentIdentifier::new(file_url.clone()),
1773 },
1774 )
1775 .log_err();
1776 }
1777 });
1778 }
1779
1780 fn register_buffer_with_copilot(
1781 &self,
1782 buffer_handle: &ModelHandle<Buffer>,
1783 cx: &mut ModelContext<Self>,
1784 ) {
1785 if let Some(copilot) = Copilot::global(cx) {
1786 copilot.update(cx, |copilot, cx| copilot.register_buffer(buffer_handle, cx));
1787 }
1788 }
1789
1790 async fn send_buffer_ordered_messages(
1791 this: WeakModelHandle<Self>,
1792 rx: UnboundedReceiver<BufferOrderedMessage>,
1793 mut cx: AsyncAppContext,
1794 ) -> Option<()> {
1795 const MAX_BATCH_SIZE: usize = 128;
1796
1797 let mut operations_by_buffer_id = HashMap::default();
1798 async fn flush_operations(
1799 this: &ModelHandle<Project>,
1800 operations_by_buffer_id: &mut HashMap<u64, Vec<proto::Operation>>,
1801 needs_resync_with_host: &mut bool,
1802 is_local: bool,
1803 cx: &AsyncAppContext,
1804 ) {
1805 for (buffer_id, operations) in operations_by_buffer_id.drain() {
1806 let request = this.read_with(cx, |this, _| {
1807 let project_id = this.remote_id()?;
1808 Some(this.client.request(proto::UpdateBuffer {
1809 buffer_id,
1810 project_id,
1811 operations,
1812 }))
1813 });
1814 if let Some(request) = request {
1815 if request.await.is_err() && !is_local {
1816 *needs_resync_with_host = true;
1817 break;
1818 }
1819 }
1820 }
1821 }
1822
1823 let mut needs_resync_with_host = false;
1824 let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
1825
1826 while let Some(changes) = changes.next().await {
1827 let this = this.upgrade(&mut cx)?;
1828 let is_local = this.read_with(&cx, |this, _| this.is_local());
1829
1830 for change in changes {
1831 match change {
1832 BufferOrderedMessage::Operation {
1833 buffer_id,
1834 operation,
1835 } => {
1836 if needs_resync_with_host {
1837 continue;
1838 }
1839
1840 operations_by_buffer_id
1841 .entry(buffer_id)
1842 .or_insert(Vec::new())
1843 .push(operation);
1844 }
1845
1846 BufferOrderedMessage::Resync => {
1847 operations_by_buffer_id.clear();
1848 if this
1849 .update(&mut cx, |this, cx| this.synchronize_remote_buffers(cx))
1850 .await
1851 .is_ok()
1852 {
1853 needs_resync_with_host = false;
1854 }
1855 }
1856
1857 BufferOrderedMessage::LanguageServerUpdate {
1858 language_server_id,
1859 message,
1860 } => {
1861 flush_operations(
1862 &this,
1863 &mut operations_by_buffer_id,
1864 &mut needs_resync_with_host,
1865 is_local,
1866 &cx,
1867 )
1868 .await;
1869
1870 this.read_with(&cx, |this, _| {
1871 if let Some(project_id) = this.remote_id() {
1872 this.client
1873 .send(proto::UpdateLanguageServer {
1874 project_id,
1875 language_server_id: language_server_id.0 as u64,
1876 variant: Some(message),
1877 })
1878 .log_err();
1879 }
1880 });
1881 }
1882 }
1883 }
1884
1885 flush_operations(
1886 &this,
1887 &mut operations_by_buffer_id,
1888 &mut needs_resync_with_host,
1889 is_local,
1890 &cx,
1891 )
1892 .await;
1893 }
1894
1895 None
1896 }
1897
1898 fn on_buffer_event(
1899 &mut self,
1900 buffer: ModelHandle<Buffer>,
1901 event: &BufferEvent,
1902 cx: &mut ModelContext<Self>,
1903 ) -> Option<()> {
1904 match event {
1905 BufferEvent::Operation(operation) => {
1906 self.buffer_ordered_messages_tx
1907 .unbounded_send(BufferOrderedMessage::Operation {
1908 buffer_id: buffer.read(cx).remote_id(),
1909 operation: language::proto::serialize_operation(operation),
1910 })
1911 .ok();
1912 }
1913
1914 BufferEvent::Edited { .. } => {
1915 let buffer = buffer.read(cx);
1916 let file = File::from_dyn(buffer.file())?;
1917 let abs_path = file.as_local()?.abs_path(cx);
1918 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1919 let next_snapshot = buffer.text_snapshot();
1920
1921 let language_servers: Vec<_> = self
1922 .language_servers_iter_for_buffer(buffer, cx)
1923 .map(|i| i.1.clone())
1924 .collect();
1925
1926 for language_server in language_servers {
1927 let language_server = language_server.clone();
1928
1929 let buffer_snapshots = self
1930 .buffer_snapshots
1931 .get_mut(&buffer.remote_id())
1932 .and_then(|m| m.get_mut(&language_server.server_id()))?;
1933 let previous_snapshot = buffer_snapshots.last()?;
1934 let next_version = previous_snapshot.version + 1;
1935
1936 let content_changes = buffer
1937 .edits_since::<(PointUtf16, usize)>(previous_snapshot.snapshot.version())
1938 .map(|edit| {
1939 let edit_start = edit.new.start.0;
1940 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
1941 let new_text = next_snapshot
1942 .text_for_range(edit.new.start.1..edit.new.end.1)
1943 .collect();
1944 lsp::TextDocumentContentChangeEvent {
1945 range: Some(lsp::Range::new(
1946 point_to_lsp(edit_start),
1947 point_to_lsp(edit_end),
1948 )),
1949 range_length: None,
1950 text: new_text,
1951 }
1952 })
1953 .collect();
1954
1955 buffer_snapshots.push(LspBufferSnapshot {
1956 version: next_version,
1957 snapshot: next_snapshot.clone(),
1958 });
1959
1960 language_server
1961 .notify::<lsp::notification::DidChangeTextDocument>(
1962 lsp::DidChangeTextDocumentParams {
1963 text_document: lsp::VersionedTextDocumentIdentifier::new(
1964 uri.clone(),
1965 next_version,
1966 ),
1967 content_changes,
1968 },
1969 )
1970 .log_err();
1971 }
1972 }
1973
1974 BufferEvent::Saved => {
1975 let file = File::from_dyn(buffer.read(cx).file())?;
1976 let worktree_id = file.worktree_id(cx);
1977 let abs_path = file.as_local()?.abs_path(cx);
1978 let text_document = lsp::TextDocumentIdentifier {
1979 uri: lsp::Url::from_file_path(abs_path).unwrap(),
1980 };
1981
1982 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
1983 server
1984 .notify::<lsp::notification::DidSaveTextDocument>(
1985 lsp::DidSaveTextDocumentParams {
1986 text_document: text_document.clone(),
1987 text: None,
1988 },
1989 )
1990 .log_err();
1991 }
1992
1993 let language_server_ids = self.language_server_ids_for_buffer(buffer.read(cx), cx);
1994 for language_server_id in language_server_ids {
1995 if let Some(LanguageServerState::Running {
1996 adapter,
1997 simulate_disk_based_diagnostics_completion,
1998 ..
1999 }) = self.language_servers.get_mut(&language_server_id)
2000 {
2001 // After saving a buffer using a language server that doesn't provide
2002 // a disk-based progress token, kick off a timer that will reset every
2003 // time the buffer is saved. If the timer eventually fires, simulate
2004 // disk-based diagnostics being finished so that other pieces of UI
2005 // (e.g., project diagnostics view, diagnostic status bar) can update.
2006 // We don't emit an event right away because the language server might take
2007 // some time to publish diagnostics.
2008 if adapter.disk_based_diagnostics_progress_token.is_none() {
2009 const DISK_BASED_DIAGNOSTICS_DEBOUNCE: Duration =
2010 Duration::from_secs(1);
2011
2012 let task = cx.spawn_weak(|this, mut cx| async move {
2013 cx.background().timer(DISK_BASED_DIAGNOSTICS_DEBOUNCE).await;
2014 if let Some(this) = this.upgrade(&cx) {
2015 this.update(&mut cx, |this, cx| {
2016 this.disk_based_diagnostics_finished(
2017 language_server_id,
2018 cx,
2019 );
2020 this.buffer_ordered_messages_tx
2021 .unbounded_send(
2022 BufferOrderedMessage::LanguageServerUpdate {
2023 language_server_id,
2024 message:proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(Default::default())
2025 },
2026 )
2027 .ok();
2028 });
2029 }
2030 });
2031 *simulate_disk_based_diagnostics_completion = Some(task);
2032 }
2033 }
2034 }
2035 }
2036
2037 _ => {}
2038 }
2039
2040 None
2041 }
2042
2043 fn language_servers_for_worktree(
2044 &self,
2045 worktree_id: WorktreeId,
2046 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
2047 self.language_server_ids
2048 .iter()
2049 .filter_map(move |((language_server_worktree_id, _), id)| {
2050 if *language_server_worktree_id == worktree_id {
2051 if let Some(LanguageServerState::Running {
2052 adapter,
2053 language,
2054 server,
2055 ..
2056 }) = self.language_servers.get(id)
2057 {
2058 return Some((adapter, language, server));
2059 }
2060 }
2061 None
2062 })
2063 }
2064
2065 fn maintain_buffer_languages(
2066 languages: &LanguageRegistry,
2067 cx: &mut ModelContext<Project>,
2068 ) -> Task<()> {
2069 let mut subscription = languages.subscribe();
2070 cx.spawn_weak(|project, mut cx| async move {
2071 while let Some(()) = subscription.next().await {
2072 if let Some(project) = project.upgrade(&cx) {
2073 project.update(&mut cx, |project, cx| {
2074 let mut plain_text_buffers = Vec::new();
2075 let mut buffers_with_unknown_injections = Vec::new();
2076 for buffer in project.opened_buffers.values() {
2077 if let Some(handle) = buffer.upgrade(cx) {
2078 let buffer = &handle.read(cx);
2079 if buffer.language().is_none()
2080 || buffer.language() == Some(&*language::PLAIN_TEXT)
2081 {
2082 plain_text_buffers.push(handle);
2083 } else if buffer.contains_unknown_injections() {
2084 buffers_with_unknown_injections.push(handle);
2085 }
2086 }
2087 }
2088
2089 for buffer in plain_text_buffers {
2090 project.detect_language_for_buffer(&buffer, cx);
2091 project.register_buffer_with_language_servers(&buffer, cx);
2092 }
2093
2094 for buffer in buffers_with_unknown_injections {
2095 buffer.update(cx, |buffer, cx| buffer.reparse(cx));
2096 }
2097 });
2098 }
2099 }
2100 })
2101 }
2102
2103 fn maintain_workspace_config(
2104 languages: Arc<LanguageRegistry>,
2105 cx: &mut ModelContext<Project>,
2106 ) -> Task<()> {
2107 let (mut settings_changed_tx, mut settings_changed_rx) = watch::channel();
2108 let _ = postage::stream::Stream::try_recv(&mut settings_changed_rx);
2109
2110 let settings_observation = cx.observe_global::<Settings, _>(move |_, _| {
2111 *settings_changed_tx.borrow_mut() = ();
2112 });
2113 cx.spawn_weak(|this, mut cx| async move {
2114 while let Some(_) = settings_changed_rx.next().await {
2115 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2116 if let Some(this) = this.upgrade(&cx) {
2117 this.read_with(&cx, |this, _| {
2118 for server_state in this.language_servers.values() {
2119 if let LanguageServerState::Running { server, .. } = server_state {
2120 server
2121 .notify::<lsp::notification::DidChangeConfiguration>(
2122 lsp::DidChangeConfigurationParams {
2123 settings: workspace_config.clone(),
2124 },
2125 )
2126 .ok();
2127 }
2128 }
2129 })
2130 } else {
2131 break;
2132 }
2133 }
2134
2135 drop(settings_observation);
2136 })
2137 }
2138
2139 fn detect_language_for_buffer(
2140 &mut self,
2141 buffer_handle: &ModelHandle<Buffer>,
2142 cx: &mut ModelContext<Self>,
2143 ) -> Option<()> {
2144 // If the buffer has a language, set it and start the language server if we haven't already.
2145 let buffer = buffer_handle.read(cx);
2146 let full_path = buffer.file()?.full_path(cx);
2147 let content = buffer.as_rope();
2148 let new_language = self
2149 .languages
2150 .language_for_file(&full_path, Some(content))
2151 .now_or_never()?
2152 .ok()?;
2153 self.set_language_for_buffer(buffer_handle, new_language, cx);
2154 None
2155 }
2156
2157 pub fn set_language_for_buffer(
2158 &mut self,
2159 buffer: &ModelHandle<Buffer>,
2160 new_language: Arc<Language>,
2161 cx: &mut ModelContext<Self>,
2162 ) {
2163 buffer.update(cx, |buffer, cx| {
2164 if buffer.language().map_or(true, |old_language| {
2165 !Arc::ptr_eq(old_language, &new_language)
2166 }) {
2167 buffer.set_language(Some(new_language.clone()), cx);
2168 }
2169 });
2170
2171 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
2172 if let Some(worktree) = file.worktree.read(cx).as_local() {
2173 let worktree_id = worktree.id();
2174 let worktree_abs_path = worktree.abs_path().clone();
2175 self.start_language_servers(worktree_id, worktree_abs_path, new_language, cx);
2176 }
2177 }
2178 }
2179
2180 fn start_language_servers(
2181 &mut self,
2182 worktree_id: WorktreeId,
2183 worktree_path: Arc<Path>,
2184 language: Arc<Language>,
2185 cx: &mut ModelContext<Self>,
2186 ) {
2187 if !cx
2188 .global::<Settings>()
2189 .enable_language_server(Some(&language.name()))
2190 {
2191 return;
2192 }
2193
2194 for adapter in language.lsp_adapters() {
2195 let key = (worktree_id, adapter.name.clone());
2196 if self.language_server_ids.contains_key(&key) {
2197 continue;
2198 }
2199
2200 let pending_server = match self.languages.start_language_server(
2201 language.clone(),
2202 adapter.clone(),
2203 worktree_path.clone(),
2204 self.client.http_client(),
2205 cx,
2206 ) {
2207 Some(pending_server) => pending_server,
2208 None => continue,
2209 };
2210
2211 let lsp = &cx.global::<Settings>().lsp.get(&adapter.name.0);
2212 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
2213
2214 let mut initialization_options = adapter.initialization_options.clone();
2215 match (&mut initialization_options, override_options) {
2216 (Some(initialization_options), Some(override_options)) => {
2217 merge_json_value_into(override_options, initialization_options);
2218 }
2219 (None, override_options) => initialization_options = override_options,
2220 _ => {}
2221 }
2222
2223 let server_id = pending_server.server_id;
2224 let state = self.setup_pending_language_server(
2225 initialization_options,
2226 pending_server,
2227 adapter.clone(),
2228 language.clone(),
2229 key.clone(),
2230 cx,
2231 );
2232 self.language_servers.insert(server_id, state);
2233 self.language_server_ids.insert(key.clone(), server_id);
2234 }
2235 }
2236
2237 fn setup_pending_language_server(
2238 &mut self,
2239 initialization_options: Option<serde_json::Value>,
2240 pending_server: PendingLanguageServer,
2241 adapter: Arc<CachedLspAdapter>,
2242 language: Arc<Language>,
2243 key: (WorktreeId, LanguageServerName),
2244 cx: &mut ModelContext<Project>,
2245 ) -> LanguageServerState {
2246 let server_id = pending_server.server_id;
2247 let languages = self.languages.clone();
2248
2249 LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
2250 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2251 let language_server = pending_server.task.await.log_err()?;
2252 let language_server = language_server
2253 .initialize(initialization_options)
2254 .await
2255 .log_err()?;
2256 let this = this.upgrade(&cx)?;
2257
2258 language_server
2259 .on_notification::<lsp::notification::PublishDiagnostics, _>({
2260 let this = this.downgrade();
2261 let adapter = adapter.clone();
2262 move |mut params, cx| {
2263 let this = this;
2264 let adapter = adapter.clone();
2265 cx.spawn(|mut cx| async move {
2266 adapter.process_diagnostics(&mut params).await;
2267 if let Some(this) = this.upgrade(&cx) {
2268 this.update(&mut cx, |this, cx| {
2269 this.update_diagnostics(
2270 server_id,
2271 params,
2272 &adapter.disk_based_diagnostic_sources,
2273 cx,
2274 )
2275 .log_err();
2276 });
2277 }
2278 })
2279 .detach();
2280 }
2281 })
2282 .detach();
2283
2284 language_server
2285 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2286 let languages = languages.clone();
2287 move |params, mut cx| {
2288 let languages = languages.clone();
2289 async move {
2290 let workspace_config =
2291 cx.update(|cx| languages.workspace_configuration(cx)).await;
2292 Ok(params
2293 .items
2294 .into_iter()
2295 .map(|item| {
2296 if let Some(section) = &item.section {
2297 workspace_config
2298 .get(section)
2299 .cloned()
2300 .unwrap_or(serde_json::Value::Null)
2301 } else {
2302 workspace_config.clone()
2303 }
2304 })
2305 .collect())
2306 }
2307 }
2308 })
2309 .detach();
2310
2311 // Even though we don't have handling for these requests, respond to them to
2312 // avoid stalling any language server like `gopls` which waits for a response
2313 // to these requests when initializing.
2314 language_server
2315 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
2316 let this = this.downgrade();
2317 move |params, mut cx| async move {
2318 if let Some(this) = this.upgrade(&cx) {
2319 this.update(&mut cx, |this, _| {
2320 if let Some(status) =
2321 this.language_server_statuses.get_mut(&server_id)
2322 {
2323 if let lsp::NumberOrString::String(token) = params.token {
2324 status.progress_tokens.insert(token);
2325 }
2326 }
2327 });
2328 }
2329 Ok(())
2330 }
2331 })
2332 .detach();
2333 language_server
2334 .on_request::<lsp::request::RegisterCapability, _, _>({
2335 let this = this.downgrade();
2336 move |params, mut cx| async move {
2337 let this = this
2338 .upgrade(&cx)
2339 .ok_or_else(|| anyhow!("project dropped"))?;
2340 for reg in params.registrations {
2341 if reg.method == "workspace/didChangeWatchedFiles" {
2342 if let Some(options) = reg.register_options {
2343 let options = serde_json::from_value(options)?;
2344 this.update(&mut cx, |this, cx| {
2345 this.on_lsp_did_change_watched_files(
2346 server_id, options, cx,
2347 );
2348 });
2349 }
2350 }
2351 }
2352 Ok(())
2353 }
2354 })
2355 .detach();
2356
2357 language_server
2358 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2359 let this = this.downgrade();
2360 let adapter = adapter.clone();
2361 let language_server = language_server.clone();
2362 move |params, cx| {
2363 Self::on_lsp_workspace_edit(
2364 this,
2365 params,
2366 server_id,
2367 adapter.clone(),
2368 language_server.clone(),
2369 cx,
2370 )
2371 }
2372 })
2373 .detach();
2374
2375 let disk_based_diagnostics_progress_token =
2376 adapter.disk_based_diagnostics_progress_token.clone();
2377
2378 language_server
2379 .on_notification::<lsp::notification::Progress, _>({
2380 let this = this.downgrade();
2381 move |params, mut cx| {
2382 if let Some(this) = this.upgrade(&cx) {
2383 this.update(&mut cx, |this, cx| {
2384 this.on_lsp_progress(
2385 params,
2386 server_id,
2387 disk_based_diagnostics_progress_token.clone(),
2388 cx,
2389 );
2390 });
2391 }
2392 }
2393 })
2394 .detach();
2395
2396 language_server
2397 .notify::<lsp::notification::DidChangeConfiguration>(
2398 lsp::DidChangeConfigurationParams {
2399 settings: workspace_config,
2400 },
2401 )
2402 .ok();
2403
2404 this.update(&mut cx, |this, cx| {
2405 // If the language server for this key doesn't match the server id, don't store the
2406 // server. Which will cause it to be dropped, killing the process
2407 if this
2408 .language_server_ids
2409 .get(&key)
2410 .map(|id| id != &server_id)
2411 .unwrap_or(false)
2412 {
2413 return None;
2414 }
2415
2416 // Update language_servers collection with Running variant of LanguageServerState
2417 // indicating that the server is up and running and ready
2418 this.language_servers.insert(
2419 server_id,
2420 LanguageServerState::Running {
2421 adapter: adapter.clone(),
2422 language: language.clone(),
2423 watched_paths: Default::default(),
2424 server: language_server.clone(),
2425 simulate_disk_based_diagnostics_completion: None,
2426 },
2427 );
2428 this.language_server_statuses.insert(
2429 server_id,
2430 LanguageServerStatus {
2431 name: language_server.name().to_string(),
2432 pending_work: Default::default(),
2433 has_pending_diagnostic_updates: false,
2434 progress_tokens: Default::default(),
2435 },
2436 );
2437
2438 if let Some(project_id) = this.remote_id() {
2439 this.client
2440 .send(proto::StartLanguageServer {
2441 project_id,
2442 server: Some(proto::LanguageServer {
2443 id: server_id.0 as u64,
2444 name: language_server.name().to_string(),
2445 }),
2446 })
2447 .log_err();
2448 }
2449
2450 // Tell the language server about every open buffer in the worktree that matches the language.
2451 for buffer in this.opened_buffers.values() {
2452 if let Some(buffer_handle) = buffer.upgrade(cx) {
2453 let buffer = buffer_handle.read(cx);
2454 let file = match File::from_dyn(buffer.file()) {
2455 Some(file) => file,
2456 None => continue,
2457 };
2458 let language = match buffer.language() {
2459 Some(language) => language,
2460 None => continue,
2461 };
2462
2463 if file.worktree.read(cx).id() != key.0
2464 || !language.lsp_adapters().iter().any(|a| a.name == key.1)
2465 {
2466 continue;
2467 }
2468
2469 let file = file.as_local()?;
2470 let versions = this
2471 .buffer_snapshots
2472 .entry(buffer.remote_id())
2473 .or_default()
2474 .entry(server_id)
2475 .or_insert_with(|| {
2476 vec![LspBufferSnapshot {
2477 version: 0,
2478 snapshot: buffer.text_snapshot(),
2479 }]
2480 });
2481
2482 let snapshot = versions.last().unwrap();
2483 let version = snapshot.version;
2484 let initial_snapshot = &snapshot.snapshot;
2485 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2486 language_server
2487 .notify::<lsp::notification::DidOpenTextDocument>(
2488 lsp::DidOpenTextDocumentParams {
2489 text_document: lsp::TextDocumentItem::new(
2490 uri,
2491 adapter
2492 .language_ids
2493 .get(language.name().as_ref())
2494 .cloned()
2495 .unwrap_or_default(),
2496 version,
2497 initial_snapshot.text(),
2498 ),
2499 },
2500 )
2501 .log_err()?;
2502 buffer_handle.update(cx, |buffer, cx| {
2503 buffer.set_completion_triggers(
2504 language_server
2505 .capabilities()
2506 .completion_provider
2507 .as_ref()
2508 .and_then(|provider| provider.trigger_characters.clone())
2509 .unwrap_or_default(),
2510 cx,
2511 )
2512 });
2513 }
2514 }
2515
2516 cx.notify();
2517 Some(language_server)
2518 })
2519 }))
2520 }
2521
2522 // Returns a list of all of the worktrees which no longer have a language server and the root path
2523 // for the stopped server
2524 fn stop_language_server(
2525 &mut self,
2526 worktree_id: WorktreeId,
2527 adapter_name: LanguageServerName,
2528 cx: &mut ModelContext<Self>,
2529 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
2530 let key = (worktree_id, adapter_name);
2531 if let Some(server_id) = self.language_server_ids.remove(&key) {
2532 // Remove other entries for this language server as well
2533 let mut orphaned_worktrees = vec![worktree_id];
2534 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
2535 for other_key in other_keys {
2536 if self.language_server_ids.get(&other_key) == Some(&server_id) {
2537 self.language_server_ids.remove(&other_key);
2538 orphaned_worktrees.push(other_key.0);
2539 }
2540 }
2541
2542 self.language_server_statuses.remove(&server_id);
2543 cx.notify();
2544
2545 let server_state = self.language_servers.remove(&server_id);
2546 cx.spawn_weak(|this, mut cx| async move {
2547 let mut root_path = None;
2548
2549 let server = match server_state {
2550 Some(LanguageServerState::Starting(started_language_server)) => {
2551 started_language_server.await
2552 }
2553 Some(LanguageServerState::Running { server, .. }) => Some(server),
2554 None => None,
2555 };
2556
2557 if let Some(server) = server {
2558 root_path = Some(server.root_path().clone());
2559 if let Some(shutdown) = server.shutdown() {
2560 shutdown.await;
2561 }
2562 }
2563
2564 if let Some(this) = this.upgrade(&cx) {
2565 this.update(&mut cx, |this, cx| {
2566 this.language_server_statuses.remove(&server_id);
2567 cx.notify();
2568 });
2569 }
2570
2571 (root_path, orphaned_worktrees)
2572 })
2573 } else {
2574 Task::ready((None, Vec::new()))
2575 }
2576 }
2577
2578 pub fn restart_language_servers_for_buffers(
2579 &mut self,
2580 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2581 cx: &mut ModelContext<Self>,
2582 ) -> Option<()> {
2583 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, Arc<Language>)> = buffers
2584 .into_iter()
2585 .filter_map(|buffer| {
2586 let buffer = buffer.read(cx);
2587 let file = File::from_dyn(buffer.file())?;
2588 let worktree = file.worktree.read(cx).as_local()?;
2589 let full_path = file.full_path(cx);
2590 let language = self
2591 .languages
2592 .language_for_file(&full_path, Some(buffer.as_rope()))
2593 .now_or_never()?
2594 .ok()?;
2595 Some((worktree.id(), worktree.abs_path().clone(), language))
2596 })
2597 .collect();
2598 for (worktree_id, worktree_abs_path, language) in language_server_lookup_info {
2599 self.restart_language_servers(worktree_id, worktree_abs_path, language, cx);
2600 }
2601
2602 None
2603 }
2604
2605 // TODO This will break in the case where the adapter's root paths and worktrees are not equal
2606 fn restart_language_servers(
2607 &mut self,
2608 worktree_id: WorktreeId,
2609 fallback_path: Arc<Path>,
2610 language: Arc<Language>,
2611 cx: &mut ModelContext<Self>,
2612 ) {
2613 let mut stops = Vec::new();
2614 for adapter in language.lsp_adapters() {
2615 stops.push(self.stop_language_server(worktree_id, adapter.name.clone(), cx));
2616 }
2617
2618 if stops.is_empty() {
2619 return;
2620 }
2621 let mut stops = stops.into_iter();
2622
2623 cx.spawn_weak(|this, mut cx| async move {
2624 let (original_root_path, mut orphaned_worktrees) = stops.next().unwrap().await;
2625 for stop in stops {
2626 let (_, worktrees) = stop.await;
2627 orphaned_worktrees.extend_from_slice(&worktrees);
2628 }
2629
2630 let this = match this.upgrade(&cx) {
2631 Some(this) => this,
2632 None => return,
2633 };
2634
2635 this.update(&mut cx, |this, cx| {
2636 // Attempt to restart using original server path. Fallback to passed in
2637 // path if we could not retrieve the root path
2638 let root_path = original_root_path
2639 .map(|path_buf| Arc::from(path_buf.as_path()))
2640 .unwrap_or(fallback_path);
2641
2642 this.start_language_servers(worktree_id, root_path, language.clone(), cx);
2643
2644 // Lookup new server ids and set them for each of the orphaned worktrees
2645 for adapter in language.lsp_adapters() {
2646 if let Some(new_server_id) = this
2647 .language_server_ids
2648 .get(&(worktree_id, adapter.name.clone()))
2649 .cloned()
2650 {
2651 for &orphaned_worktree in &orphaned_worktrees {
2652 this.language_server_ids
2653 .insert((orphaned_worktree, adapter.name.clone()), new_server_id);
2654 }
2655 }
2656 }
2657 });
2658 })
2659 .detach();
2660 }
2661
2662 fn on_lsp_progress(
2663 &mut self,
2664 progress: lsp::ProgressParams,
2665 language_server_id: LanguageServerId,
2666 disk_based_diagnostics_progress_token: Option<String>,
2667 cx: &mut ModelContext<Self>,
2668 ) {
2669 let token = match progress.token {
2670 lsp::NumberOrString::String(token) => token,
2671 lsp::NumberOrString::Number(token) => {
2672 log::info!("skipping numeric progress token {}", token);
2673 return;
2674 }
2675 };
2676 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
2677 let language_server_status =
2678 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2679 status
2680 } else {
2681 return;
2682 };
2683
2684 if !language_server_status.progress_tokens.contains(&token) {
2685 return;
2686 }
2687
2688 let is_disk_based_diagnostics_progress = disk_based_diagnostics_progress_token
2689 .as_ref()
2690 .map_or(false, |disk_based_token| {
2691 token.starts_with(disk_based_token)
2692 });
2693
2694 match progress {
2695 lsp::WorkDoneProgress::Begin(report) => {
2696 if is_disk_based_diagnostics_progress {
2697 language_server_status.has_pending_diagnostic_updates = true;
2698 self.disk_based_diagnostics_started(language_server_id, cx);
2699 self.buffer_ordered_messages_tx
2700 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2701 language_server_id,
2702 message: proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(Default::default())
2703 })
2704 .ok();
2705 } else {
2706 self.on_lsp_work_start(
2707 language_server_id,
2708 token.clone(),
2709 LanguageServerProgress {
2710 message: report.message.clone(),
2711 percentage: report.percentage.map(|p| p as usize),
2712 last_update_at: Instant::now(),
2713 },
2714 cx,
2715 );
2716 self.buffer_ordered_messages_tx
2717 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2718 language_server_id,
2719 message: proto::update_language_server::Variant::WorkStart(
2720 proto::LspWorkStart {
2721 token,
2722 message: report.message,
2723 percentage: report.percentage.map(|p| p as u32),
2724 },
2725 ),
2726 })
2727 .ok();
2728 }
2729 }
2730 lsp::WorkDoneProgress::Report(report) => {
2731 if !is_disk_based_diagnostics_progress {
2732 self.on_lsp_work_progress(
2733 language_server_id,
2734 token.clone(),
2735 LanguageServerProgress {
2736 message: report.message.clone(),
2737 percentage: report.percentage.map(|p| p as usize),
2738 last_update_at: Instant::now(),
2739 },
2740 cx,
2741 );
2742 self.buffer_ordered_messages_tx
2743 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2744 language_server_id,
2745 message: proto::update_language_server::Variant::WorkProgress(
2746 proto::LspWorkProgress {
2747 token,
2748 message: report.message,
2749 percentage: report.percentage.map(|p| p as u32),
2750 },
2751 ),
2752 })
2753 .ok();
2754 }
2755 }
2756 lsp::WorkDoneProgress::End(_) => {
2757 language_server_status.progress_tokens.remove(&token);
2758
2759 if is_disk_based_diagnostics_progress {
2760 language_server_status.has_pending_diagnostic_updates = false;
2761 self.disk_based_diagnostics_finished(language_server_id, cx);
2762 self.buffer_ordered_messages_tx
2763 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2764 language_server_id,
2765 message:
2766 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2767 Default::default(),
2768 ),
2769 })
2770 .ok();
2771 } else {
2772 self.on_lsp_work_end(language_server_id, token.clone(), cx);
2773 self.buffer_ordered_messages_tx
2774 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2775 language_server_id,
2776 message: proto::update_language_server::Variant::WorkEnd(
2777 proto::LspWorkEnd { token },
2778 ),
2779 })
2780 .ok();
2781 }
2782 }
2783 }
2784 }
2785
2786 fn on_lsp_work_start(
2787 &mut self,
2788 language_server_id: LanguageServerId,
2789 token: String,
2790 progress: LanguageServerProgress,
2791 cx: &mut ModelContext<Self>,
2792 ) {
2793 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2794 status.pending_work.insert(token, progress);
2795 cx.notify();
2796 }
2797 }
2798
2799 fn on_lsp_work_progress(
2800 &mut self,
2801 language_server_id: LanguageServerId,
2802 token: String,
2803 progress: LanguageServerProgress,
2804 cx: &mut ModelContext<Self>,
2805 ) {
2806 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2807 let entry = status
2808 .pending_work
2809 .entry(token)
2810 .or_insert(LanguageServerProgress {
2811 message: Default::default(),
2812 percentage: Default::default(),
2813 last_update_at: progress.last_update_at,
2814 });
2815 if progress.message.is_some() {
2816 entry.message = progress.message;
2817 }
2818 if progress.percentage.is_some() {
2819 entry.percentage = progress.percentage;
2820 }
2821 entry.last_update_at = progress.last_update_at;
2822 cx.notify();
2823 }
2824 }
2825
2826 fn on_lsp_work_end(
2827 &mut self,
2828 language_server_id: LanguageServerId,
2829 token: String,
2830 cx: &mut ModelContext<Self>,
2831 ) {
2832 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2833 status.pending_work.remove(&token);
2834 cx.notify();
2835 }
2836 }
2837
2838 fn on_lsp_did_change_watched_files(
2839 &mut self,
2840 language_server_id: LanguageServerId,
2841 params: DidChangeWatchedFilesRegistrationOptions,
2842 cx: &mut ModelContext<Self>,
2843 ) {
2844 if let Some(LanguageServerState::Running { watched_paths, .. }) =
2845 self.language_servers.get_mut(&language_server_id)
2846 {
2847 watched_paths.clear();
2848 for watcher in params.watchers {
2849 watched_paths.add_pattern(&watcher.glob_pattern).log_err();
2850 }
2851 cx.notify();
2852 }
2853 }
2854
2855 async fn on_lsp_workspace_edit(
2856 this: WeakModelHandle<Self>,
2857 params: lsp::ApplyWorkspaceEditParams,
2858 server_id: LanguageServerId,
2859 adapter: Arc<CachedLspAdapter>,
2860 language_server: Arc<LanguageServer>,
2861 mut cx: AsyncAppContext,
2862 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
2863 let this = this
2864 .upgrade(&cx)
2865 .ok_or_else(|| anyhow!("project project closed"))?;
2866 let transaction = Self::deserialize_workspace_edit(
2867 this.clone(),
2868 params.edit,
2869 true,
2870 adapter.clone(),
2871 language_server.clone(),
2872 &mut cx,
2873 )
2874 .await
2875 .log_err();
2876 this.update(&mut cx, |this, _| {
2877 if let Some(transaction) = transaction {
2878 this.last_workspace_edits_by_language_server
2879 .insert(server_id, transaction);
2880 }
2881 });
2882 Ok(lsp::ApplyWorkspaceEditResponse {
2883 applied: true,
2884 failed_change: None,
2885 failure_reason: None,
2886 })
2887 }
2888
2889 pub fn language_server_statuses(
2890 &self,
2891 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
2892 self.language_server_statuses.values()
2893 }
2894
2895 pub fn update_diagnostics(
2896 &mut self,
2897 language_server_id: LanguageServerId,
2898 mut params: lsp::PublishDiagnosticsParams,
2899 disk_based_sources: &[String],
2900 cx: &mut ModelContext<Self>,
2901 ) -> Result<()> {
2902 let abs_path = params
2903 .uri
2904 .to_file_path()
2905 .map_err(|_| anyhow!("URI is not a file"))?;
2906 let mut diagnostics = Vec::default();
2907 let mut primary_diagnostic_group_ids = HashMap::default();
2908 let mut sources_by_group_id = HashMap::default();
2909 let mut supporting_diagnostics = HashMap::default();
2910
2911 // Ensure that primary diagnostics are always the most severe
2912 params.diagnostics.sort_by_key(|item| item.severity);
2913
2914 for diagnostic in ¶ms.diagnostics {
2915 let source = diagnostic.source.as_ref();
2916 let code = diagnostic.code.as_ref().map(|code| match code {
2917 lsp::NumberOrString::Number(code) => code.to_string(),
2918 lsp::NumberOrString::String(code) => code.clone(),
2919 });
2920 let range = range_from_lsp(diagnostic.range);
2921 let is_supporting = diagnostic
2922 .related_information
2923 .as_ref()
2924 .map_or(false, |infos| {
2925 infos.iter().any(|info| {
2926 primary_diagnostic_group_ids.contains_key(&(
2927 source,
2928 code.clone(),
2929 range_from_lsp(info.location.range),
2930 ))
2931 })
2932 });
2933
2934 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
2935 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
2936 });
2937
2938 if is_supporting {
2939 supporting_diagnostics.insert(
2940 (source, code.clone(), range),
2941 (diagnostic.severity, is_unnecessary),
2942 );
2943 } else {
2944 let group_id = post_inc(&mut self.next_diagnostic_group_id);
2945 let is_disk_based =
2946 source.map_or(false, |source| disk_based_sources.contains(source));
2947
2948 sources_by_group_id.insert(group_id, source);
2949 primary_diagnostic_group_ids
2950 .insert((source, code.clone(), range.clone()), group_id);
2951
2952 diagnostics.push(DiagnosticEntry {
2953 range,
2954 diagnostic: Diagnostic {
2955 code: code.clone(),
2956 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
2957 message: diagnostic.message.clone(),
2958 group_id,
2959 is_primary: true,
2960 is_valid: true,
2961 is_disk_based,
2962 is_unnecessary,
2963 },
2964 });
2965 if let Some(infos) = &diagnostic.related_information {
2966 for info in infos {
2967 if info.location.uri == params.uri && !info.message.is_empty() {
2968 let range = range_from_lsp(info.location.range);
2969 diagnostics.push(DiagnosticEntry {
2970 range,
2971 diagnostic: Diagnostic {
2972 code: code.clone(),
2973 severity: DiagnosticSeverity::INFORMATION,
2974 message: info.message.clone(),
2975 group_id,
2976 is_primary: false,
2977 is_valid: true,
2978 is_disk_based,
2979 is_unnecessary: false,
2980 },
2981 });
2982 }
2983 }
2984 }
2985 }
2986 }
2987
2988 for entry in &mut diagnostics {
2989 let diagnostic = &mut entry.diagnostic;
2990 if !diagnostic.is_primary {
2991 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
2992 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
2993 source,
2994 diagnostic.code.clone(),
2995 entry.range.clone(),
2996 )) {
2997 if let Some(severity) = severity {
2998 diagnostic.severity = severity;
2999 }
3000 diagnostic.is_unnecessary = is_unnecessary;
3001 }
3002 }
3003 }
3004
3005 self.update_diagnostic_entries(
3006 language_server_id,
3007 abs_path,
3008 params.version,
3009 diagnostics,
3010 cx,
3011 )?;
3012 Ok(())
3013 }
3014
3015 pub fn update_diagnostic_entries(
3016 &mut self,
3017 server_id: LanguageServerId,
3018 abs_path: PathBuf,
3019 version: Option<i32>,
3020 diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3021 cx: &mut ModelContext<Project>,
3022 ) -> Result<(), anyhow::Error> {
3023 let (worktree, relative_path) = self
3024 .find_local_worktree(&abs_path, cx)
3025 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
3026
3027 let project_path = ProjectPath {
3028 worktree_id: worktree.read(cx).id(),
3029 path: relative_path.into(),
3030 };
3031
3032 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
3033 self.update_buffer_diagnostics(&buffer, server_id, version, diagnostics.clone(), cx)?;
3034 }
3035
3036 let updated = worktree.update(cx, |worktree, cx| {
3037 worktree
3038 .as_local_mut()
3039 .ok_or_else(|| anyhow!("not a local worktree"))?
3040 .update_diagnostics(server_id, project_path.path.clone(), diagnostics, cx)
3041 })?;
3042 if updated {
3043 cx.emit(Event::DiagnosticsUpdated {
3044 language_server_id: server_id,
3045 path: project_path,
3046 });
3047 }
3048 Ok(())
3049 }
3050
3051 fn update_buffer_diagnostics(
3052 &mut self,
3053 buffer: &ModelHandle<Buffer>,
3054 server_id: LanguageServerId,
3055 version: Option<i32>,
3056 mut diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3057 cx: &mut ModelContext<Self>,
3058 ) -> Result<()> {
3059 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
3060 Ordering::Equal
3061 .then_with(|| b.is_primary.cmp(&a.is_primary))
3062 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
3063 .then_with(|| a.severity.cmp(&b.severity))
3064 .then_with(|| a.message.cmp(&b.message))
3065 }
3066
3067 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx)?;
3068
3069 diagnostics.sort_unstable_by(|a, b| {
3070 Ordering::Equal
3071 .then_with(|| a.range.start.cmp(&b.range.start))
3072 .then_with(|| b.range.end.cmp(&a.range.end))
3073 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
3074 });
3075
3076 let mut sanitized_diagnostics = Vec::new();
3077 let edits_since_save = Patch::new(
3078 snapshot
3079 .edits_since::<Unclipped<PointUtf16>>(buffer.read(cx).saved_version())
3080 .collect(),
3081 );
3082 for entry in diagnostics {
3083 let start;
3084 let end;
3085 if entry.diagnostic.is_disk_based {
3086 // Some diagnostics are based on files on disk instead of buffers'
3087 // current contents. Adjust these diagnostics' ranges to reflect
3088 // any unsaved edits.
3089 start = edits_since_save.old_to_new(entry.range.start);
3090 end = edits_since_save.old_to_new(entry.range.end);
3091 } else {
3092 start = entry.range.start;
3093 end = entry.range.end;
3094 }
3095
3096 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
3097 ..snapshot.clip_point_utf16(end, Bias::Right);
3098
3099 // Expand empty ranges by one codepoint
3100 if range.start == range.end {
3101 // This will be go to the next boundary when being clipped
3102 range.end.column += 1;
3103 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Right);
3104 if range.start == range.end && range.end.column > 0 {
3105 range.start.column -= 1;
3106 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Left);
3107 }
3108 }
3109
3110 sanitized_diagnostics.push(DiagnosticEntry {
3111 range,
3112 diagnostic: entry.diagnostic,
3113 });
3114 }
3115 drop(edits_since_save);
3116
3117 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
3118 buffer.update(cx, |buffer, cx| {
3119 buffer.update_diagnostics(server_id, set, cx)
3120 });
3121 Ok(())
3122 }
3123
3124 pub fn reload_buffers(
3125 &self,
3126 buffers: HashSet<ModelHandle<Buffer>>,
3127 push_to_history: bool,
3128 cx: &mut ModelContext<Self>,
3129 ) -> Task<Result<ProjectTransaction>> {
3130 let mut local_buffers = Vec::new();
3131 let mut remote_buffers = None;
3132 for buffer_handle in buffers {
3133 let buffer = buffer_handle.read(cx);
3134 if buffer.is_dirty() {
3135 if let Some(file) = File::from_dyn(buffer.file()) {
3136 if file.is_local() {
3137 local_buffers.push(buffer_handle);
3138 } else {
3139 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3140 }
3141 }
3142 }
3143 }
3144
3145 let remote_buffers = self.remote_id().zip(remote_buffers);
3146 let client = self.client.clone();
3147
3148 cx.spawn(|this, mut cx| async move {
3149 let mut project_transaction = ProjectTransaction::default();
3150
3151 if let Some((project_id, remote_buffers)) = remote_buffers {
3152 let response = client
3153 .request(proto::ReloadBuffers {
3154 project_id,
3155 buffer_ids: remote_buffers
3156 .iter()
3157 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3158 .collect(),
3159 })
3160 .await?
3161 .transaction
3162 .ok_or_else(|| anyhow!("missing transaction"))?;
3163 project_transaction = this
3164 .update(&mut cx, |this, cx| {
3165 this.deserialize_project_transaction(response, push_to_history, cx)
3166 })
3167 .await?;
3168 }
3169
3170 for buffer in local_buffers {
3171 let transaction = buffer
3172 .update(&mut cx, |buffer, cx| buffer.reload(cx))
3173 .await?;
3174 buffer.update(&mut cx, |buffer, cx| {
3175 if let Some(transaction) = transaction {
3176 if !push_to_history {
3177 buffer.forget_transaction(transaction.id);
3178 }
3179 project_transaction.0.insert(cx.handle(), transaction);
3180 }
3181 });
3182 }
3183
3184 Ok(project_transaction)
3185 })
3186 }
3187
3188 pub fn format(
3189 &self,
3190 buffers: HashSet<ModelHandle<Buffer>>,
3191 push_to_history: bool,
3192 trigger: FormatTrigger,
3193 cx: &mut ModelContext<Project>,
3194 ) -> Task<Result<ProjectTransaction>> {
3195 if self.is_local() {
3196 let mut buffers_with_paths_and_servers = buffers
3197 .into_iter()
3198 .filter_map(|buffer_handle| {
3199 let buffer = buffer_handle.read(cx);
3200 let file = File::from_dyn(buffer.file())?;
3201 let buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3202 let server = self
3203 .primary_language_servers_for_buffer(buffer, cx)
3204 .map(|s| s.1.clone());
3205 Some((buffer_handle, buffer_abs_path, server))
3206 })
3207 .collect::<Vec<_>>();
3208
3209 cx.spawn(|this, mut cx| async move {
3210 // Do not allow multiple concurrent formatting requests for the
3211 // same buffer.
3212 this.update(&mut cx, |this, _| {
3213 buffers_with_paths_and_servers
3214 .retain(|(buffer, _, _)| this.buffers_being_formatted.insert(buffer.id()));
3215 });
3216
3217 let _cleanup = defer({
3218 let this = this.clone();
3219 let mut cx = cx.clone();
3220 let buffers = &buffers_with_paths_and_servers;
3221 move || {
3222 this.update(&mut cx, |this, _| {
3223 for (buffer, _, _) in buffers {
3224 this.buffers_being_formatted.remove(&buffer.id());
3225 }
3226 });
3227 }
3228 });
3229
3230 let mut project_transaction = ProjectTransaction::default();
3231 for (buffer, buffer_abs_path, language_server) in &buffers_with_paths_and_servers {
3232 let (
3233 format_on_save,
3234 remove_trailing_whitespace,
3235 ensure_final_newline,
3236 formatter,
3237 tab_size,
3238 ) = buffer.read_with(&cx, |buffer, cx| {
3239 let settings = cx.global::<Settings>();
3240 let language_name = buffer.language().map(|language| language.name());
3241 (
3242 settings.format_on_save(language_name.as_deref()),
3243 settings.remove_trailing_whitespace_on_save(language_name.as_deref()),
3244 settings.ensure_final_newline_on_save(language_name.as_deref()),
3245 settings.formatter(language_name.as_deref()),
3246 settings.tab_size(language_name.as_deref()),
3247 )
3248 });
3249
3250 // First, format buffer's whitespace according to the settings.
3251 let trailing_whitespace_diff = if remove_trailing_whitespace {
3252 Some(
3253 buffer
3254 .read_with(&cx, |b, cx| b.remove_trailing_whitespace(cx))
3255 .await,
3256 )
3257 } else {
3258 None
3259 };
3260 let whitespace_transaction_id = buffer.update(&mut cx, |buffer, cx| {
3261 buffer.finalize_last_transaction();
3262 buffer.start_transaction();
3263 if let Some(diff) = trailing_whitespace_diff {
3264 buffer.apply_diff(diff, cx);
3265 }
3266 if ensure_final_newline {
3267 buffer.ensure_final_newline(cx);
3268 }
3269 buffer.end_transaction(cx)
3270 });
3271
3272 // Currently, formatting operations are represented differently depending on
3273 // whether they come from a language server or an external command.
3274 enum FormatOperation {
3275 Lsp(Vec<(Range<Anchor>, String)>),
3276 External(Diff),
3277 }
3278
3279 // Apply language-specific formatting using either a language server
3280 // or external command.
3281 let mut format_operation = None;
3282 match (formatter, format_on_save) {
3283 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => {}
3284
3285 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
3286 | (_, FormatOnSave::LanguageServer) => {
3287 if let Some((language_server, buffer_abs_path)) =
3288 language_server.as_ref().zip(buffer_abs_path.as_ref())
3289 {
3290 format_operation = Some(FormatOperation::Lsp(
3291 Self::format_via_lsp(
3292 &this,
3293 &buffer,
3294 buffer_abs_path,
3295 &language_server,
3296 tab_size,
3297 &mut cx,
3298 )
3299 .await
3300 .context("failed to format via language server")?,
3301 ));
3302 }
3303 }
3304
3305 (
3306 Formatter::External { command, arguments },
3307 FormatOnSave::On | FormatOnSave::Off,
3308 )
3309 | (_, FormatOnSave::External { command, arguments }) => {
3310 if let Some(buffer_abs_path) = buffer_abs_path {
3311 format_operation = Self::format_via_external_command(
3312 &buffer,
3313 &buffer_abs_path,
3314 &command,
3315 &arguments,
3316 &mut cx,
3317 )
3318 .await
3319 .context(format!(
3320 "failed to format via external command {:?}",
3321 command
3322 ))?
3323 .map(FormatOperation::External);
3324 }
3325 }
3326 };
3327
3328 buffer.update(&mut cx, |b, cx| {
3329 // If the buffer had its whitespace formatted and was edited while the language-specific
3330 // formatting was being computed, avoid applying the language-specific formatting, because
3331 // it can't be grouped with the whitespace formatting in the undo history.
3332 if let Some(transaction_id) = whitespace_transaction_id {
3333 if b.peek_undo_stack()
3334 .map_or(true, |e| e.transaction_id() != transaction_id)
3335 {
3336 format_operation.take();
3337 }
3338 }
3339
3340 // Apply any language-specific formatting, and group the two formatting operations
3341 // in the buffer's undo history.
3342 if let Some(operation) = format_operation {
3343 match operation {
3344 FormatOperation::Lsp(edits) => {
3345 b.edit(edits, None, cx);
3346 }
3347 FormatOperation::External(diff) => {
3348 b.apply_diff(diff, cx);
3349 }
3350 }
3351
3352 if let Some(transaction_id) = whitespace_transaction_id {
3353 b.group_until_transaction(transaction_id);
3354 }
3355 }
3356
3357 if let Some(transaction) = b.finalize_last_transaction().cloned() {
3358 if !push_to_history {
3359 b.forget_transaction(transaction.id);
3360 }
3361 project_transaction.0.insert(buffer.clone(), transaction);
3362 }
3363 });
3364 }
3365
3366 Ok(project_transaction)
3367 })
3368 } else {
3369 let remote_id = self.remote_id();
3370 let client = self.client.clone();
3371 cx.spawn(|this, mut cx| async move {
3372 let mut project_transaction = ProjectTransaction::default();
3373 if let Some(project_id) = remote_id {
3374 let response = client
3375 .request(proto::FormatBuffers {
3376 project_id,
3377 trigger: trigger as i32,
3378 buffer_ids: buffers
3379 .iter()
3380 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3381 .collect(),
3382 })
3383 .await?
3384 .transaction
3385 .ok_or_else(|| anyhow!("missing transaction"))?;
3386 project_transaction = this
3387 .update(&mut cx, |this, cx| {
3388 this.deserialize_project_transaction(response, push_to_history, cx)
3389 })
3390 .await?;
3391 }
3392 Ok(project_transaction)
3393 })
3394 }
3395 }
3396
3397 async fn format_via_lsp(
3398 this: &ModelHandle<Self>,
3399 buffer: &ModelHandle<Buffer>,
3400 abs_path: &Path,
3401 language_server: &Arc<LanguageServer>,
3402 tab_size: NonZeroU32,
3403 cx: &mut AsyncAppContext,
3404 ) -> Result<Vec<(Range<Anchor>, String)>> {
3405 let text_document =
3406 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(abs_path).unwrap());
3407 let capabilities = &language_server.capabilities();
3408 let lsp_edits = if capabilities
3409 .document_formatting_provider
3410 .as_ref()
3411 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3412 {
3413 language_server
3414 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
3415 text_document,
3416 options: lsp::FormattingOptions {
3417 tab_size: tab_size.into(),
3418 insert_spaces: true,
3419 insert_final_newline: Some(true),
3420 ..Default::default()
3421 },
3422 work_done_progress_params: Default::default(),
3423 })
3424 .await?
3425 } else if capabilities
3426 .document_range_formatting_provider
3427 .as_ref()
3428 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3429 {
3430 let buffer_start = lsp::Position::new(0, 0);
3431 let buffer_end =
3432 buffer.read_with(cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
3433 language_server
3434 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
3435 text_document,
3436 range: lsp::Range::new(buffer_start, buffer_end),
3437 options: lsp::FormattingOptions {
3438 tab_size: tab_size.into(),
3439 insert_spaces: true,
3440 insert_final_newline: Some(true),
3441 ..Default::default()
3442 },
3443 work_done_progress_params: Default::default(),
3444 })
3445 .await?
3446 } else {
3447 None
3448 };
3449
3450 if let Some(lsp_edits) = lsp_edits {
3451 this.update(cx, |this, cx| {
3452 this.edits_from_lsp(buffer, lsp_edits, language_server.server_id(), None, cx)
3453 })
3454 .await
3455 } else {
3456 Ok(Default::default())
3457 }
3458 }
3459
3460 async fn format_via_external_command(
3461 buffer: &ModelHandle<Buffer>,
3462 buffer_abs_path: &Path,
3463 command: &str,
3464 arguments: &[String],
3465 cx: &mut AsyncAppContext,
3466 ) -> Result<Option<Diff>> {
3467 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
3468 let file = File::from_dyn(buffer.file())?;
3469 let worktree = file.worktree.read(cx).as_local()?;
3470 let mut worktree_path = worktree.abs_path().to_path_buf();
3471 if worktree.root_entry()?.is_file() {
3472 worktree_path.pop();
3473 }
3474 Some(worktree_path)
3475 });
3476
3477 if let Some(working_dir_path) = working_dir_path {
3478 let mut child =
3479 smol::process::Command::new(command)
3480 .args(arguments.iter().map(|arg| {
3481 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
3482 }))
3483 .current_dir(&working_dir_path)
3484 .stdin(smol::process::Stdio::piped())
3485 .stdout(smol::process::Stdio::piped())
3486 .stderr(smol::process::Stdio::piped())
3487 .spawn()?;
3488 let stdin = child
3489 .stdin
3490 .as_mut()
3491 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
3492 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
3493 for chunk in text.chunks() {
3494 stdin.write_all(chunk.as_bytes()).await?;
3495 }
3496 stdin.flush().await?;
3497
3498 let output = child.output().await?;
3499 if !output.status.success() {
3500 return Err(anyhow!(
3501 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
3502 output.status.code(),
3503 String::from_utf8_lossy(&output.stdout),
3504 String::from_utf8_lossy(&output.stderr),
3505 ));
3506 }
3507
3508 let stdout = String::from_utf8(output.stdout)?;
3509 Ok(Some(
3510 buffer
3511 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
3512 .await,
3513 ))
3514 } else {
3515 Ok(None)
3516 }
3517 }
3518
3519 pub fn definition<T: ToPointUtf16>(
3520 &self,
3521 buffer: &ModelHandle<Buffer>,
3522 position: T,
3523 cx: &mut ModelContext<Self>,
3524 ) -> Task<Result<Vec<LocationLink>>> {
3525 let position = position.to_point_utf16(buffer.read(cx));
3526 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
3527 }
3528
3529 pub fn type_definition<T: ToPointUtf16>(
3530 &self,
3531 buffer: &ModelHandle<Buffer>,
3532 position: T,
3533 cx: &mut ModelContext<Self>,
3534 ) -> Task<Result<Vec<LocationLink>>> {
3535 let position = position.to_point_utf16(buffer.read(cx));
3536 self.request_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
3537 }
3538
3539 pub fn references<T: ToPointUtf16>(
3540 &self,
3541 buffer: &ModelHandle<Buffer>,
3542 position: T,
3543 cx: &mut ModelContext<Self>,
3544 ) -> Task<Result<Vec<Location>>> {
3545 let position = position.to_point_utf16(buffer.read(cx));
3546 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
3547 }
3548
3549 pub fn document_highlights<T: ToPointUtf16>(
3550 &self,
3551 buffer: &ModelHandle<Buffer>,
3552 position: T,
3553 cx: &mut ModelContext<Self>,
3554 ) -> Task<Result<Vec<DocumentHighlight>>> {
3555 let position = position.to_point_utf16(buffer.read(cx));
3556 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
3557 }
3558
3559 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
3560 if self.is_local() {
3561 let mut requests = Vec::new();
3562 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
3563 let worktree_id = *worktree_id;
3564 if let Some(worktree) = self
3565 .worktree_for_id(worktree_id, cx)
3566 .and_then(|worktree| worktree.read(cx).as_local())
3567 {
3568 if let Some(LanguageServerState::Running {
3569 adapter,
3570 language,
3571 server,
3572 ..
3573 }) = self.language_servers.get(server_id)
3574 {
3575 let adapter = adapter.clone();
3576 let language = language.clone();
3577 let worktree_abs_path = worktree.abs_path().clone();
3578 requests.push(
3579 server
3580 .request::<lsp::request::WorkspaceSymbol>(
3581 lsp::WorkspaceSymbolParams {
3582 query: query.to_string(),
3583 ..Default::default()
3584 },
3585 )
3586 .log_err()
3587 .map(move |response| {
3588 (
3589 adapter,
3590 language,
3591 worktree_id,
3592 worktree_abs_path,
3593 response.unwrap_or_default(),
3594 )
3595 }),
3596 );
3597 }
3598 }
3599 }
3600
3601 cx.spawn_weak(|this, cx| async move {
3602 let responses = futures::future::join_all(requests).await;
3603 let this = if let Some(this) = this.upgrade(&cx) {
3604 this
3605 } else {
3606 return Ok(Default::default());
3607 };
3608 let symbols = this.read_with(&cx, |this, cx| {
3609 let mut symbols = Vec::new();
3610 for (
3611 adapter,
3612 adapter_language,
3613 source_worktree_id,
3614 worktree_abs_path,
3615 response,
3616 ) in responses
3617 {
3618 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3619 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3620 let mut worktree_id = source_worktree_id;
3621 let path;
3622 if let Some((worktree, rel_path)) =
3623 this.find_local_worktree(&abs_path, cx)
3624 {
3625 worktree_id = worktree.read(cx).id();
3626 path = rel_path;
3627 } else {
3628 path = relativize_path(&worktree_abs_path, &abs_path);
3629 }
3630
3631 let project_path = ProjectPath {
3632 worktree_id,
3633 path: path.into(),
3634 };
3635 let signature = this.symbol_signature(&project_path);
3636 let adapter_language = adapter_language.clone();
3637 let language = this
3638 .languages
3639 .language_for_file(&project_path.path, None)
3640 .unwrap_or_else(move |_| adapter_language);
3641 let language_server_name = adapter.name.clone();
3642 Some(async move {
3643 let language = language.await;
3644 let label = language
3645 .label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3646 .await;
3647
3648 Symbol {
3649 language_server_name,
3650 source_worktree_id,
3651 path: project_path,
3652 label: label.unwrap_or_else(|| {
3653 CodeLabel::plain(lsp_symbol.name.clone(), None)
3654 }),
3655 kind: lsp_symbol.kind,
3656 name: lsp_symbol.name,
3657 range: range_from_lsp(lsp_symbol.location.range),
3658 signature,
3659 }
3660 })
3661 }));
3662 }
3663 symbols
3664 });
3665 Ok(futures::future::join_all(symbols).await)
3666 })
3667 } else if let Some(project_id) = self.remote_id() {
3668 let request = self.client.request(proto::GetProjectSymbols {
3669 project_id,
3670 query: query.to_string(),
3671 });
3672 cx.spawn_weak(|this, cx| async move {
3673 let response = request.await?;
3674 let mut symbols = Vec::new();
3675 if let Some(this) = this.upgrade(&cx) {
3676 let new_symbols = this.read_with(&cx, |this, _| {
3677 response
3678 .symbols
3679 .into_iter()
3680 .map(|symbol| this.deserialize_symbol(symbol))
3681 .collect::<Vec<_>>()
3682 });
3683 symbols = futures::future::join_all(new_symbols)
3684 .await
3685 .into_iter()
3686 .filter_map(|symbol| symbol.log_err())
3687 .collect::<Vec<_>>();
3688 }
3689 Ok(symbols)
3690 })
3691 } else {
3692 Task::ready(Ok(Default::default()))
3693 }
3694 }
3695
3696 pub fn open_buffer_for_symbol(
3697 &mut self,
3698 symbol: &Symbol,
3699 cx: &mut ModelContext<Self>,
3700 ) -> Task<Result<ModelHandle<Buffer>>> {
3701 if self.is_local() {
3702 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
3703 symbol.source_worktree_id,
3704 symbol.language_server_name.clone(),
3705 )) {
3706 *id
3707 } else {
3708 return Task::ready(Err(anyhow!(
3709 "language server for worktree and language not found"
3710 )));
3711 };
3712
3713 let worktree_abs_path = if let Some(worktree_abs_path) = self
3714 .worktree_for_id(symbol.path.worktree_id, cx)
3715 .and_then(|worktree| worktree.read(cx).as_local())
3716 .map(|local_worktree| local_worktree.abs_path())
3717 {
3718 worktree_abs_path
3719 } else {
3720 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3721 };
3722 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
3723 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3724 uri
3725 } else {
3726 return Task::ready(Err(anyhow!("invalid symbol path")));
3727 };
3728
3729 self.open_local_buffer_via_lsp(
3730 symbol_uri,
3731 language_server_id,
3732 symbol.language_server_name.clone(),
3733 cx,
3734 )
3735 } else if let Some(project_id) = self.remote_id() {
3736 let request = self.client.request(proto::OpenBufferForSymbol {
3737 project_id,
3738 symbol: Some(serialize_symbol(symbol)),
3739 });
3740 cx.spawn(|this, mut cx| async move {
3741 let response = request.await?;
3742 this.update(&mut cx, |this, cx| {
3743 this.wait_for_remote_buffer(response.buffer_id, cx)
3744 })
3745 .await
3746 })
3747 } else {
3748 Task::ready(Err(anyhow!("project does not have a remote id")))
3749 }
3750 }
3751
3752 pub fn hover<T: ToPointUtf16>(
3753 &self,
3754 buffer: &ModelHandle<Buffer>,
3755 position: T,
3756 cx: &mut ModelContext<Self>,
3757 ) -> Task<Result<Option<Hover>>> {
3758 let position = position.to_point_utf16(buffer.read(cx));
3759 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3760 }
3761
3762 pub fn completions<T: ToPointUtf16>(
3763 &self,
3764 buffer: &ModelHandle<Buffer>,
3765 position: T,
3766 cx: &mut ModelContext<Self>,
3767 ) -> Task<Result<Vec<Completion>>> {
3768 let position = position.to_point_utf16(buffer.read(cx));
3769 self.request_lsp(buffer.clone(), GetCompletions { position }, cx)
3770 }
3771
3772 pub fn apply_additional_edits_for_completion(
3773 &self,
3774 buffer_handle: ModelHandle<Buffer>,
3775 completion: Completion,
3776 push_to_history: bool,
3777 cx: &mut ModelContext<Self>,
3778 ) -> Task<Result<Option<Transaction>>> {
3779 let buffer = buffer_handle.read(cx);
3780 let buffer_id = buffer.remote_id();
3781
3782 if self.is_local() {
3783 let lang_server = match self.primary_language_servers_for_buffer(buffer, cx) {
3784 Some((_, server)) => server.clone(),
3785 _ => return Task::ready(Ok(Default::default())),
3786 };
3787
3788 cx.spawn(|this, mut cx| async move {
3789 let resolved_completion = lang_server
3790 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3791 .await?;
3792
3793 if let Some(edits) = resolved_completion.additional_text_edits {
3794 let edits = this
3795 .update(&mut cx, |this, cx| {
3796 this.edits_from_lsp(
3797 &buffer_handle,
3798 edits,
3799 lang_server.server_id(),
3800 None,
3801 cx,
3802 )
3803 })
3804 .await?;
3805
3806 buffer_handle.update(&mut cx, |buffer, cx| {
3807 buffer.finalize_last_transaction();
3808 buffer.start_transaction();
3809
3810 for (range, text) in edits {
3811 let primary = &completion.old_range;
3812 let start_within = primary.start.cmp(&range.start, buffer).is_le()
3813 && primary.end.cmp(&range.start, buffer).is_ge();
3814 let end_within = range.start.cmp(&primary.end, buffer).is_le()
3815 && range.end.cmp(&primary.end, buffer).is_ge();
3816
3817 //Skip addtional edits which overlap with the primary completion edit
3818 //https://github.com/zed-industries/zed/pull/1871
3819 if !start_within && !end_within {
3820 buffer.edit([(range, text)], None, cx);
3821 }
3822 }
3823
3824 let transaction = if buffer.end_transaction(cx).is_some() {
3825 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3826 if !push_to_history {
3827 buffer.forget_transaction(transaction.id);
3828 }
3829 Some(transaction)
3830 } else {
3831 None
3832 };
3833 Ok(transaction)
3834 })
3835 } else {
3836 Ok(None)
3837 }
3838 })
3839 } else if let Some(project_id) = self.remote_id() {
3840 let client = self.client.clone();
3841 cx.spawn(|_, mut cx| async move {
3842 let response = client
3843 .request(proto::ApplyCompletionAdditionalEdits {
3844 project_id,
3845 buffer_id,
3846 completion: Some(language::proto::serialize_completion(&completion)),
3847 })
3848 .await?;
3849
3850 if let Some(transaction) = response.transaction {
3851 let transaction = language::proto::deserialize_transaction(transaction)?;
3852 buffer_handle
3853 .update(&mut cx, |buffer, _| {
3854 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
3855 })
3856 .await?;
3857 if push_to_history {
3858 buffer_handle.update(&mut cx, |buffer, _| {
3859 buffer.push_transaction(transaction.clone(), Instant::now());
3860 });
3861 }
3862 Ok(Some(transaction))
3863 } else {
3864 Ok(None)
3865 }
3866 })
3867 } else {
3868 Task::ready(Err(anyhow!("project does not have a remote id")))
3869 }
3870 }
3871
3872 pub fn code_actions<T: Clone + ToOffset>(
3873 &self,
3874 buffer_handle: &ModelHandle<Buffer>,
3875 range: Range<T>,
3876 cx: &mut ModelContext<Self>,
3877 ) -> Task<Result<Vec<CodeAction>>> {
3878 let buffer = buffer_handle.read(cx);
3879 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3880 self.request_lsp(buffer_handle.clone(), GetCodeActions { range }, cx)
3881 }
3882
3883 pub fn apply_code_action(
3884 &self,
3885 buffer_handle: ModelHandle<Buffer>,
3886 mut action: CodeAction,
3887 push_to_history: bool,
3888 cx: &mut ModelContext<Self>,
3889 ) -> Task<Result<ProjectTransaction>> {
3890 if self.is_local() {
3891 let buffer = buffer_handle.read(cx);
3892 let (lsp_adapter, lang_server) = if let Some((adapter, server)) =
3893 self.language_server_for_buffer(buffer, action.server_id, cx)
3894 {
3895 (adapter.clone(), server.clone())
3896 } else {
3897 return Task::ready(Ok(Default::default()));
3898 };
3899 let range = action.range.to_point_utf16(buffer);
3900
3901 cx.spawn(|this, mut cx| async move {
3902 if let Some(lsp_range) = action
3903 .lsp_action
3904 .data
3905 .as_mut()
3906 .and_then(|d| d.get_mut("codeActionParams"))
3907 .and_then(|d| d.get_mut("range"))
3908 {
3909 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
3910 action.lsp_action = lang_server
3911 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
3912 .await?;
3913 } else {
3914 let actions = this
3915 .update(&mut cx, |this, cx| {
3916 this.code_actions(&buffer_handle, action.range, cx)
3917 })
3918 .await?;
3919 action.lsp_action = actions
3920 .into_iter()
3921 .find(|a| a.lsp_action.title == action.lsp_action.title)
3922 .ok_or_else(|| anyhow!("code action is outdated"))?
3923 .lsp_action;
3924 }
3925
3926 if let Some(edit) = action.lsp_action.edit {
3927 if edit.changes.is_some() || edit.document_changes.is_some() {
3928 return Self::deserialize_workspace_edit(
3929 this,
3930 edit,
3931 push_to_history,
3932 lsp_adapter.clone(),
3933 lang_server.clone(),
3934 &mut cx,
3935 )
3936 .await;
3937 }
3938 }
3939
3940 if let Some(command) = action.lsp_action.command {
3941 this.update(&mut cx, |this, _| {
3942 this.last_workspace_edits_by_language_server
3943 .remove(&lang_server.server_id());
3944 });
3945 lang_server
3946 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
3947 command: command.command,
3948 arguments: command.arguments.unwrap_or_default(),
3949 ..Default::default()
3950 })
3951 .await?;
3952 return Ok(this.update(&mut cx, |this, _| {
3953 this.last_workspace_edits_by_language_server
3954 .remove(&lang_server.server_id())
3955 .unwrap_or_default()
3956 }));
3957 }
3958
3959 Ok(ProjectTransaction::default())
3960 })
3961 } else if let Some(project_id) = self.remote_id() {
3962 let client = self.client.clone();
3963 let request = proto::ApplyCodeAction {
3964 project_id,
3965 buffer_id: buffer_handle.read(cx).remote_id(),
3966 action: Some(language::proto::serialize_code_action(&action)),
3967 };
3968 cx.spawn(|this, mut cx| async move {
3969 let response = client
3970 .request(request)
3971 .await?
3972 .transaction
3973 .ok_or_else(|| anyhow!("missing transaction"))?;
3974 this.update(&mut cx, |this, cx| {
3975 this.deserialize_project_transaction(response, push_to_history, cx)
3976 })
3977 .await
3978 })
3979 } else {
3980 Task::ready(Err(anyhow!("project does not have a remote id")))
3981 }
3982 }
3983
3984 async fn deserialize_workspace_edit(
3985 this: ModelHandle<Self>,
3986 edit: lsp::WorkspaceEdit,
3987 push_to_history: bool,
3988 lsp_adapter: Arc<CachedLspAdapter>,
3989 language_server: Arc<LanguageServer>,
3990 cx: &mut AsyncAppContext,
3991 ) -> Result<ProjectTransaction> {
3992 let fs = this.read_with(cx, |this, _| this.fs.clone());
3993 let mut operations = Vec::new();
3994 if let Some(document_changes) = edit.document_changes {
3995 match document_changes {
3996 lsp::DocumentChanges::Edits(edits) => {
3997 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
3998 }
3999 lsp::DocumentChanges::Operations(ops) => operations = ops,
4000 }
4001 } else if let Some(changes) = edit.changes {
4002 operations.extend(changes.into_iter().map(|(uri, edits)| {
4003 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
4004 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
4005 uri,
4006 version: None,
4007 },
4008 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
4009 })
4010 }));
4011 }
4012
4013 let mut project_transaction = ProjectTransaction::default();
4014 for operation in operations {
4015 match operation {
4016 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
4017 let abs_path = op
4018 .uri
4019 .to_file_path()
4020 .map_err(|_| anyhow!("can't convert URI to path"))?;
4021
4022 if let Some(parent_path) = abs_path.parent() {
4023 fs.create_dir(parent_path).await?;
4024 }
4025 if abs_path.ends_with("/") {
4026 fs.create_dir(&abs_path).await?;
4027 } else {
4028 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
4029 .await?;
4030 }
4031 }
4032
4033 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
4034 let source_abs_path = op
4035 .old_uri
4036 .to_file_path()
4037 .map_err(|_| anyhow!("can't convert URI to path"))?;
4038 let target_abs_path = op
4039 .new_uri
4040 .to_file_path()
4041 .map_err(|_| anyhow!("can't convert URI to path"))?;
4042 fs.rename(
4043 &source_abs_path,
4044 &target_abs_path,
4045 op.options.map(Into::into).unwrap_or_default(),
4046 )
4047 .await?;
4048 }
4049
4050 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
4051 let abs_path = op
4052 .uri
4053 .to_file_path()
4054 .map_err(|_| anyhow!("can't convert URI to path"))?;
4055 let options = op.options.map(Into::into).unwrap_or_default();
4056 if abs_path.ends_with("/") {
4057 fs.remove_dir(&abs_path, options).await?;
4058 } else {
4059 fs.remove_file(&abs_path, options).await?;
4060 }
4061 }
4062
4063 lsp::DocumentChangeOperation::Edit(op) => {
4064 let buffer_to_edit = this
4065 .update(cx, |this, cx| {
4066 this.open_local_buffer_via_lsp(
4067 op.text_document.uri,
4068 language_server.server_id(),
4069 lsp_adapter.name.clone(),
4070 cx,
4071 )
4072 })
4073 .await?;
4074
4075 let edits = this
4076 .update(cx, |this, cx| {
4077 let edits = op.edits.into_iter().map(|edit| match edit {
4078 lsp::OneOf::Left(edit) => edit,
4079 lsp::OneOf::Right(edit) => edit.text_edit,
4080 });
4081 this.edits_from_lsp(
4082 &buffer_to_edit,
4083 edits,
4084 language_server.server_id(),
4085 op.text_document.version,
4086 cx,
4087 )
4088 })
4089 .await?;
4090
4091 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4092 buffer.finalize_last_transaction();
4093 buffer.start_transaction();
4094 for (range, text) in edits {
4095 buffer.edit([(range, text)], None, cx);
4096 }
4097 let transaction = if buffer.end_transaction(cx).is_some() {
4098 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4099 if !push_to_history {
4100 buffer.forget_transaction(transaction.id);
4101 }
4102 Some(transaction)
4103 } else {
4104 None
4105 };
4106
4107 transaction
4108 });
4109 if let Some(transaction) = transaction {
4110 project_transaction.0.insert(buffer_to_edit, transaction);
4111 }
4112 }
4113 }
4114 }
4115
4116 Ok(project_transaction)
4117 }
4118
4119 pub fn prepare_rename<T: ToPointUtf16>(
4120 &self,
4121 buffer: ModelHandle<Buffer>,
4122 position: T,
4123 cx: &mut ModelContext<Self>,
4124 ) -> Task<Result<Option<Range<Anchor>>>> {
4125 let position = position.to_point_utf16(buffer.read(cx));
4126 self.request_lsp(buffer, PrepareRename { position }, cx)
4127 }
4128
4129 pub fn perform_rename<T: ToPointUtf16>(
4130 &self,
4131 buffer: ModelHandle<Buffer>,
4132 position: T,
4133 new_name: String,
4134 push_to_history: bool,
4135 cx: &mut ModelContext<Self>,
4136 ) -> Task<Result<ProjectTransaction>> {
4137 let position = position.to_point_utf16(buffer.read(cx));
4138 self.request_lsp(
4139 buffer,
4140 PerformRename {
4141 position,
4142 new_name,
4143 push_to_history,
4144 },
4145 cx,
4146 )
4147 }
4148
4149 #[allow(clippy::type_complexity)]
4150 pub fn search(
4151 &self,
4152 query: SearchQuery,
4153 cx: &mut ModelContext<Self>,
4154 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
4155 if self.is_local() {
4156 let snapshots = self
4157 .visible_worktrees(cx)
4158 .filter_map(|tree| {
4159 let tree = tree.read(cx).as_local()?;
4160 Some(tree.snapshot())
4161 })
4162 .collect::<Vec<_>>();
4163
4164 let background = cx.background().clone();
4165 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
4166 if path_count == 0 {
4167 return Task::ready(Ok(Default::default()));
4168 }
4169 let workers = background.num_cpus().min(path_count);
4170 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
4171 cx.background()
4172 .spawn({
4173 let fs = self.fs.clone();
4174 let background = cx.background().clone();
4175 let query = query.clone();
4176 async move {
4177 let fs = &fs;
4178 let query = &query;
4179 let matching_paths_tx = &matching_paths_tx;
4180 let paths_per_worker = (path_count + workers - 1) / workers;
4181 let snapshots = &snapshots;
4182 background
4183 .scoped(|scope| {
4184 for worker_ix in 0..workers {
4185 let worker_start_ix = worker_ix * paths_per_worker;
4186 let worker_end_ix = worker_start_ix + paths_per_worker;
4187 scope.spawn(async move {
4188 let mut snapshot_start_ix = 0;
4189 let mut abs_path = PathBuf::new();
4190 for snapshot in snapshots {
4191 let snapshot_end_ix =
4192 snapshot_start_ix + snapshot.visible_file_count();
4193 if worker_end_ix <= snapshot_start_ix {
4194 break;
4195 } else if worker_start_ix > snapshot_end_ix {
4196 snapshot_start_ix = snapshot_end_ix;
4197 continue;
4198 } else {
4199 let start_in_snapshot = worker_start_ix
4200 .saturating_sub(snapshot_start_ix);
4201 let end_in_snapshot =
4202 cmp::min(worker_end_ix, snapshot_end_ix)
4203 - snapshot_start_ix;
4204
4205 for entry in snapshot
4206 .files(false, start_in_snapshot)
4207 .take(end_in_snapshot - start_in_snapshot)
4208 {
4209 if matching_paths_tx.is_closed() {
4210 break;
4211 }
4212
4213 abs_path.clear();
4214 abs_path.push(&snapshot.abs_path());
4215 abs_path.push(&entry.path);
4216 let matches = if let Some(file) =
4217 fs.open_sync(&abs_path).await.log_err()
4218 {
4219 query.detect(file).unwrap_or(false)
4220 } else {
4221 false
4222 };
4223
4224 if matches {
4225 let project_path =
4226 (snapshot.id(), entry.path.clone());
4227 if matching_paths_tx
4228 .send(project_path)
4229 .await
4230 .is_err()
4231 {
4232 break;
4233 }
4234 }
4235 }
4236
4237 snapshot_start_ix = snapshot_end_ix;
4238 }
4239 }
4240 });
4241 }
4242 })
4243 .await;
4244 }
4245 })
4246 .detach();
4247
4248 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
4249 let open_buffers = self
4250 .opened_buffers
4251 .values()
4252 .filter_map(|b| b.upgrade(cx))
4253 .collect::<HashSet<_>>();
4254 cx.spawn(|this, cx| async move {
4255 for buffer in &open_buffers {
4256 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4257 buffers_tx.send((buffer.clone(), snapshot)).await?;
4258 }
4259
4260 let open_buffers = Rc::new(RefCell::new(open_buffers));
4261 while let Some(project_path) = matching_paths_rx.next().await {
4262 if buffers_tx.is_closed() {
4263 break;
4264 }
4265
4266 let this = this.clone();
4267 let open_buffers = open_buffers.clone();
4268 let buffers_tx = buffers_tx.clone();
4269 cx.spawn(|mut cx| async move {
4270 if let Some(buffer) = this
4271 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
4272 .await
4273 .log_err()
4274 {
4275 if open_buffers.borrow_mut().insert(buffer.clone()) {
4276 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4277 buffers_tx.send((buffer, snapshot)).await?;
4278 }
4279 }
4280
4281 Ok::<_, anyhow::Error>(())
4282 })
4283 .detach();
4284 }
4285
4286 Ok::<_, anyhow::Error>(())
4287 })
4288 .detach_and_log_err(cx);
4289
4290 let background = cx.background().clone();
4291 cx.background().spawn(async move {
4292 let query = &query;
4293 let mut matched_buffers = Vec::new();
4294 for _ in 0..workers {
4295 matched_buffers.push(HashMap::default());
4296 }
4297 background
4298 .scoped(|scope| {
4299 for worker_matched_buffers in matched_buffers.iter_mut() {
4300 let mut buffers_rx = buffers_rx.clone();
4301 scope.spawn(async move {
4302 while let Some((buffer, snapshot)) = buffers_rx.next().await {
4303 let buffer_matches = query
4304 .search(snapshot.as_rope())
4305 .await
4306 .iter()
4307 .map(|range| {
4308 snapshot.anchor_before(range.start)
4309 ..snapshot.anchor_after(range.end)
4310 })
4311 .collect::<Vec<_>>();
4312 if !buffer_matches.is_empty() {
4313 worker_matched_buffers
4314 .insert(buffer.clone(), buffer_matches);
4315 }
4316 }
4317 });
4318 }
4319 })
4320 .await;
4321 Ok(matched_buffers.into_iter().flatten().collect())
4322 })
4323 } else if let Some(project_id) = self.remote_id() {
4324 let request = self.client.request(query.to_proto(project_id));
4325 cx.spawn(|this, mut cx| async move {
4326 let response = request.await?;
4327 let mut result = HashMap::default();
4328 for location in response.locations {
4329 let target_buffer = this
4330 .update(&mut cx, |this, cx| {
4331 this.wait_for_remote_buffer(location.buffer_id, cx)
4332 })
4333 .await?;
4334 let start = location
4335 .start
4336 .and_then(deserialize_anchor)
4337 .ok_or_else(|| anyhow!("missing target start"))?;
4338 let end = location
4339 .end
4340 .and_then(deserialize_anchor)
4341 .ok_or_else(|| anyhow!("missing target end"))?;
4342 result
4343 .entry(target_buffer)
4344 .or_insert(Vec::new())
4345 .push(start..end)
4346 }
4347 Ok(result)
4348 })
4349 } else {
4350 Task::ready(Ok(Default::default()))
4351 }
4352 }
4353
4354 // TODO: Wire this up to allow selecting a server?
4355 fn request_lsp<R: LspCommand>(
4356 &self,
4357 buffer_handle: ModelHandle<Buffer>,
4358 request: R,
4359 cx: &mut ModelContext<Self>,
4360 ) -> Task<Result<R::Response>>
4361 where
4362 <R::LspRequest as lsp::request::Request>::Result: Send,
4363 {
4364 let buffer = buffer_handle.read(cx);
4365 if self.is_local() {
4366 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
4367 if let Some((file, language_server)) = file.zip(
4368 self.primary_language_servers_for_buffer(buffer, cx)
4369 .map(|(_, server)| server.clone()),
4370 ) {
4371 let lsp_params = request.to_lsp(&file.abs_path(cx), buffer, &language_server, cx);
4372 return cx.spawn(|this, cx| async move {
4373 if !request.check_capabilities(language_server.capabilities()) {
4374 return Ok(Default::default());
4375 }
4376
4377 let response = language_server
4378 .request::<R::LspRequest>(lsp_params)
4379 .await
4380 .context("lsp request failed")?;
4381 request
4382 .response_from_lsp(
4383 response,
4384 this,
4385 buffer_handle,
4386 language_server.server_id(),
4387 cx,
4388 )
4389 .await
4390 });
4391 }
4392 } else if let Some(project_id) = self.remote_id() {
4393 let rpc = self.client.clone();
4394 let message = request.to_proto(project_id, buffer);
4395 return cx.spawn_weak(|this, cx| async move {
4396 // Ensure the project is still alive by the time the task
4397 // is scheduled.
4398 this.upgrade(&cx)
4399 .ok_or_else(|| anyhow!("project dropped"))?;
4400
4401 let response = rpc.request(message).await?;
4402
4403 let this = this
4404 .upgrade(&cx)
4405 .ok_or_else(|| anyhow!("project dropped"))?;
4406 if this.read_with(&cx, |this, _| this.is_read_only()) {
4407 Err(anyhow!("disconnected before completing request"))
4408 } else {
4409 request
4410 .response_from_proto(response, this, buffer_handle, cx)
4411 .await
4412 }
4413 });
4414 }
4415 Task::ready(Ok(Default::default()))
4416 }
4417
4418 pub fn find_or_create_local_worktree(
4419 &mut self,
4420 abs_path: impl AsRef<Path>,
4421 visible: bool,
4422 cx: &mut ModelContext<Self>,
4423 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
4424 let abs_path = abs_path.as_ref();
4425 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4426 Task::ready(Ok((tree, relative_path)))
4427 } else {
4428 let worktree = self.create_local_worktree(abs_path, visible, cx);
4429 cx.foreground()
4430 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4431 }
4432 }
4433
4434 pub fn find_local_worktree(
4435 &self,
4436 abs_path: &Path,
4437 cx: &AppContext,
4438 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4439 for tree in &self.worktrees {
4440 if let Some(tree) = tree.upgrade(cx) {
4441 if let Some(relative_path) = tree
4442 .read(cx)
4443 .as_local()
4444 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4445 {
4446 return Some((tree.clone(), relative_path.into()));
4447 }
4448 }
4449 }
4450 None
4451 }
4452
4453 pub fn is_shared(&self) -> bool {
4454 match &self.client_state {
4455 Some(ProjectClientState::Local { .. }) => true,
4456 _ => false,
4457 }
4458 }
4459
4460 fn create_local_worktree(
4461 &mut self,
4462 abs_path: impl AsRef<Path>,
4463 visible: bool,
4464 cx: &mut ModelContext<Self>,
4465 ) -> Task<Result<ModelHandle<Worktree>>> {
4466 let fs = self.fs.clone();
4467 let client = self.client.clone();
4468 let next_entry_id = self.next_entry_id.clone();
4469 let path: Arc<Path> = abs_path.as_ref().into();
4470 let task = self
4471 .loading_local_worktrees
4472 .entry(path.clone())
4473 .or_insert_with(|| {
4474 cx.spawn(|project, mut cx| {
4475 async move {
4476 let worktree = Worktree::local(
4477 client.clone(),
4478 path.clone(),
4479 visible,
4480 fs,
4481 next_entry_id,
4482 &mut cx,
4483 )
4484 .await;
4485
4486 project.update(&mut cx, |project, _| {
4487 project.loading_local_worktrees.remove(&path);
4488 });
4489
4490 let worktree = worktree?;
4491 project.update(&mut cx, |project, cx| project.add_worktree(&worktree, cx));
4492 Ok(worktree)
4493 }
4494 .map_err(Arc::new)
4495 })
4496 .shared()
4497 })
4498 .clone();
4499 cx.foreground().spawn(async move {
4500 match task.await {
4501 Ok(worktree) => Ok(worktree),
4502 Err(err) => Err(anyhow!("{}", err)),
4503 }
4504 })
4505 }
4506
4507 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4508 self.worktrees.retain(|worktree| {
4509 if let Some(worktree) = worktree.upgrade(cx) {
4510 let id = worktree.read(cx).id();
4511 if id == id_to_remove {
4512 cx.emit(Event::WorktreeRemoved(id));
4513 false
4514 } else {
4515 true
4516 }
4517 } else {
4518 false
4519 }
4520 });
4521 self.metadata_changed(cx);
4522 }
4523
4524 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4525 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
4526 if worktree.read(cx).is_local() {
4527 cx.subscribe(worktree, |this, worktree, event, cx| match event {
4528 worktree::Event::UpdatedEntries(changes) => {
4529 this.update_local_worktree_buffers(&worktree, cx);
4530 this.update_local_worktree_language_servers(&worktree, changes, cx);
4531 }
4532 worktree::Event::UpdatedGitRepositories(updated_repos) => {
4533 this.update_local_worktree_buffers_git_repos(worktree, updated_repos, cx)
4534 }
4535 })
4536 .detach();
4537 }
4538
4539 let push_strong_handle = {
4540 let worktree = worktree.read(cx);
4541 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4542 };
4543 if push_strong_handle {
4544 self.worktrees
4545 .push(WorktreeHandle::Strong(worktree.clone()));
4546 } else {
4547 self.worktrees
4548 .push(WorktreeHandle::Weak(worktree.downgrade()));
4549 }
4550
4551 cx.observe_release(worktree, |this, worktree, cx| {
4552 let _ = this.remove_worktree(worktree.id(), cx);
4553 })
4554 .detach();
4555
4556 cx.emit(Event::WorktreeAdded);
4557 self.metadata_changed(cx);
4558 }
4559
4560 fn update_local_worktree_buffers(
4561 &mut self,
4562 worktree_handle: &ModelHandle<Worktree>,
4563 cx: &mut ModelContext<Self>,
4564 ) {
4565 let snapshot = worktree_handle.read(cx).snapshot();
4566
4567 let mut buffers_to_delete = Vec::new();
4568 let mut renamed_buffers = Vec::new();
4569
4570 for (buffer_id, buffer) in &self.opened_buffers {
4571 if let Some(buffer) = buffer.upgrade(cx) {
4572 buffer.update(cx, |buffer, cx| {
4573 if let Some(old_file) = File::from_dyn(buffer.file()) {
4574 if old_file.worktree != *worktree_handle {
4575 return;
4576 }
4577
4578 let new_file = if let Some(entry) = snapshot.entry_for_id(old_file.entry_id)
4579 {
4580 File {
4581 is_local: true,
4582 entry_id: entry.id,
4583 mtime: entry.mtime,
4584 path: entry.path.clone(),
4585 worktree: worktree_handle.clone(),
4586 is_deleted: false,
4587 }
4588 } else if let Some(entry) =
4589 snapshot.entry_for_path(old_file.path().as_ref())
4590 {
4591 File {
4592 is_local: true,
4593 entry_id: entry.id,
4594 mtime: entry.mtime,
4595 path: entry.path.clone(),
4596 worktree: worktree_handle.clone(),
4597 is_deleted: false,
4598 }
4599 } else {
4600 File {
4601 is_local: true,
4602 entry_id: old_file.entry_id,
4603 path: old_file.path().clone(),
4604 mtime: old_file.mtime(),
4605 worktree: worktree_handle.clone(),
4606 is_deleted: true,
4607 }
4608 };
4609
4610 let old_path = old_file.abs_path(cx);
4611 if new_file.abs_path(cx) != old_path {
4612 renamed_buffers.push((cx.handle(), old_file.clone()));
4613 }
4614
4615 if new_file != *old_file {
4616 if let Some(project_id) = self.remote_id() {
4617 self.client
4618 .send(proto::UpdateBufferFile {
4619 project_id,
4620 buffer_id: *buffer_id as u64,
4621 file: Some(new_file.to_proto()),
4622 })
4623 .log_err();
4624 }
4625
4626 buffer.file_updated(Arc::new(new_file), cx).detach();
4627 }
4628 }
4629 });
4630 } else {
4631 buffers_to_delete.push(*buffer_id);
4632 }
4633 }
4634
4635 for buffer_id in buffers_to_delete {
4636 self.opened_buffers.remove(&buffer_id);
4637 }
4638
4639 for (buffer, old_file) in renamed_buffers {
4640 self.unregister_buffer_from_language_servers(&buffer, &old_file, cx);
4641 self.detect_language_for_buffer(&buffer, cx);
4642 self.register_buffer_with_language_servers(&buffer, cx);
4643 }
4644 }
4645
4646 fn update_local_worktree_language_servers(
4647 &mut self,
4648 worktree_handle: &ModelHandle<Worktree>,
4649 changes: &HashMap<Arc<Path>, PathChange>,
4650 cx: &mut ModelContext<Self>,
4651 ) {
4652 let worktree_id = worktree_handle.read(cx).id();
4653 let abs_path = worktree_handle.read(cx).abs_path();
4654 for ((server_worktree_id, _), server_id) in &self.language_server_ids {
4655 if *server_worktree_id == worktree_id {
4656 if let Some(server) = self.language_servers.get(server_id) {
4657 if let LanguageServerState::Running {
4658 server,
4659 watched_paths,
4660 ..
4661 } = server
4662 {
4663 let params = lsp::DidChangeWatchedFilesParams {
4664 changes: changes
4665 .iter()
4666 .filter_map(|(path, change)| {
4667 let path = abs_path.join(path);
4668 if watched_paths.matches(&path) {
4669 Some(lsp::FileEvent {
4670 uri: lsp::Url::from_file_path(path).unwrap(),
4671 typ: match change {
4672 PathChange::Added => lsp::FileChangeType::CREATED,
4673 PathChange::Removed => lsp::FileChangeType::DELETED,
4674 PathChange::Updated
4675 | PathChange::AddedOrUpdated => {
4676 lsp::FileChangeType::CHANGED
4677 }
4678 },
4679 })
4680 } else {
4681 None
4682 }
4683 })
4684 .collect(),
4685 };
4686
4687 if !params.changes.is_empty() {
4688 server
4689 .notify::<lsp::notification::DidChangeWatchedFiles>(params)
4690 .log_err();
4691 }
4692 }
4693 }
4694 }
4695 }
4696 }
4697
4698 fn update_local_worktree_buffers_git_repos(
4699 &mut self,
4700 worktree: ModelHandle<Worktree>,
4701 repos: &[GitRepositoryEntry],
4702 cx: &mut ModelContext<Self>,
4703 ) {
4704 for (_, buffer) in &self.opened_buffers {
4705 if let Some(buffer) = buffer.upgrade(cx) {
4706 let file = match File::from_dyn(buffer.read(cx).file()) {
4707 Some(file) => file,
4708 None => continue,
4709 };
4710 if file.worktree != worktree {
4711 continue;
4712 }
4713
4714 let path = file.path().clone();
4715
4716 let repo = match repos.iter().find(|repo| repo.manages(&path)) {
4717 Some(repo) => repo.clone(),
4718 None => return,
4719 };
4720
4721 let relative_repo = match path.strip_prefix(repo.content_path) {
4722 Ok(relative_repo) => relative_repo.to_owned(),
4723 Err(_) => return,
4724 };
4725
4726 let remote_id = self.remote_id();
4727 let client = self.client.clone();
4728
4729 cx.spawn(|_, mut cx| async move {
4730 let diff_base = cx
4731 .background()
4732 .spawn(async move { repo.repo.lock().load_index_text(&relative_repo) })
4733 .await;
4734
4735 let buffer_id = buffer.update(&mut cx, |buffer, cx| {
4736 buffer.set_diff_base(diff_base.clone(), cx);
4737 buffer.remote_id()
4738 });
4739
4740 if let Some(project_id) = remote_id {
4741 client
4742 .send(proto::UpdateDiffBase {
4743 project_id,
4744 buffer_id: buffer_id as u64,
4745 diff_base,
4746 })
4747 .log_err();
4748 }
4749 })
4750 .detach();
4751 }
4752 }
4753 }
4754
4755 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
4756 let new_active_entry = entry.and_then(|project_path| {
4757 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
4758 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
4759 Some(entry.id)
4760 });
4761 if new_active_entry != self.active_entry {
4762 self.active_entry = new_active_entry;
4763 cx.emit(Event::ActiveEntryChanged(new_active_entry));
4764 }
4765 }
4766
4767 pub fn language_servers_running_disk_based_diagnostics(
4768 &self,
4769 ) -> impl Iterator<Item = LanguageServerId> + '_ {
4770 self.language_server_statuses
4771 .iter()
4772 .filter_map(|(id, status)| {
4773 if status.has_pending_diagnostic_updates {
4774 Some(*id)
4775 } else {
4776 None
4777 }
4778 })
4779 }
4780
4781 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
4782 let mut summary = DiagnosticSummary::default();
4783 for (_, _, path_summary) in self.diagnostic_summaries(cx) {
4784 summary.error_count += path_summary.error_count;
4785 summary.warning_count += path_summary.warning_count;
4786 }
4787 summary
4788 }
4789
4790 pub fn diagnostic_summaries<'a>(
4791 &'a self,
4792 cx: &'a AppContext,
4793 ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
4794 self.visible_worktrees(cx).flat_map(move |worktree| {
4795 let worktree = worktree.read(cx);
4796 let worktree_id = worktree.id();
4797 worktree
4798 .diagnostic_summaries()
4799 .map(move |(path, server_id, summary)| {
4800 (ProjectPath { worktree_id, path }, server_id, summary)
4801 })
4802 })
4803 }
4804
4805 pub fn disk_based_diagnostics_started(
4806 &mut self,
4807 language_server_id: LanguageServerId,
4808 cx: &mut ModelContext<Self>,
4809 ) {
4810 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
4811 }
4812
4813 pub fn disk_based_diagnostics_finished(
4814 &mut self,
4815 language_server_id: LanguageServerId,
4816 cx: &mut ModelContext<Self>,
4817 ) {
4818 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
4819 }
4820
4821 pub fn active_entry(&self) -> Option<ProjectEntryId> {
4822 self.active_entry
4823 }
4824
4825 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
4826 self.worktree_for_id(path.worktree_id, cx)?
4827 .read(cx)
4828 .entry_for_path(&path.path)
4829 .cloned()
4830 }
4831
4832 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
4833 let worktree = self.worktree_for_entry(entry_id, cx)?;
4834 let worktree = worktree.read(cx);
4835 let worktree_id = worktree.id();
4836 let path = worktree.entry_for_id(entry_id)?.path.clone();
4837 Some(ProjectPath { worktree_id, path })
4838 }
4839
4840 // RPC message handlers
4841
4842 async fn handle_unshare_project(
4843 this: ModelHandle<Self>,
4844 _: TypedEnvelope<proto::UnshareProject>,
4845 _: Arc<Client>,
4846 mut cx: AsyncAppContext,
4847 ) -> Result<()> {
4848 this.update(&mut cx, |this, cx| {
4849 if this.is_local() {
4850 this.unshare(cx)?;
4851 } else {
4852 this.disconnected_from_host(cx);
4853 }
4854 Ok(())
4855 })
4856 }
4857
4858 async fn handle_add_collaborator(
4859 this: ModelHandle<Self>,
4860 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
4861 _: Arc<Client>,
4862 mut cx: AsyncAppContext,
4863 ) -> Result<()> {
4864 let collaborator = envelope
4865 .payload
4866 .collaborator
4867 .take()
4868 .ok_or_else(|| anyhow!("empty collaborator"))?;
4869
4870 let collaborator = Collaborator::from_proto(collaborator)?;
4871 this.update(&mut cx, |this, cx| {
4872 this.shared_buffers.remove(&collaborator.peer_id);
4873 this.collaborators
4874 .insert(collaborator.peer_id, collaborator);
4875 cx.notify();
4876 });
4877
4878 Ok(())
4879 }
4880
4881 async fn handle_update_project_collaborator(
4882 this: ModelHandle<Self>,
4883 envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
4884 _: Arc<Client>,
4885 mut cx: AsyncAppContext,
4886 ) -> Result<()> {
4887 let old_peer_id = envelope
4888 .payload
4889 .old_peer_id
4890 .ok_or_else(|| anyhow!("missing old peer id"))?;
4891 let new_peer_id = envelope
4892 .payload
4893 .new_peer_id
4894 .ok_or_else(|| anyhow!("missing new peer id"))?;
4895 this.update(&mut cx, |this, cx| {
4896 let collaborator = this
4897 .collaborators
4898 .remove(&old_peer_id)
4899 .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
4900 let is_host = collaborator.replica_id == 0;
4901 this.collaborators.insert(new_peer_id, collaborator);
4902
4903 let buffers = this.shared_buffers.remove(&old_peer_id);
4904 log::info!(
4905 "peer {} became {}. moving buffers {:?}",
4906 old_peer_id,
4907 new_peer_id,
4908 &buffers
4909 );
4910 if let Some(buffers) = buffers {
4911 this.shared_buffers.insert(new_peer_id, buffers);
4912 }
4913
4914 if is_host {
4915 this.opened_buffers
4916 .retain(|_, buffer| !matches!(buffer, OpenBuffer::Operations(_)));
4917 this.buffer_ordered_messages_tx
4918 .unbounded_send(BufferOrderedMessage::Resync)
4919 .unwrap();
4920 }
4921
4922 cx.emit(Event::CollaboratorUpdated {
4923 old_peer_id,
4924 new_peer_id,
4925 });
4926 cx.notify();
4927 Ok(())
4928 })
4929 }
4930
4931 async fn handle_remove_collaborator(
4932 this: ModelHandle<Self>,
4933 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
4934 _: Arc<Client>,
4935 mut cx: AsyncAppContext,
4936 ) -> Result<()> {
4937 this.update(&mut cx, |this, cx| {
4938 let peer_id = envelope
4939 .payload
4940 .peer_id
4941 .ok_or_else(|| anyhow!("invalid peer id"))?;
4942 let replica_id = this
4943 .collaborators
4944 .remove(&peer_id)
4945 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
4946 .replica_id;
4947 for buffer in this.opened_buffers.values() {
4948 if let Some(buffer) = buffer.upgrade(cx) {
4949 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
4950 }
4951 }
4952 this.shared_buffers.remove(&peer_id);
4953
4954 cx.emit(Event::CollaboratorLeft(peer_id));
4955 cx.notify();
4956 Ok(())
4957 })
4958 }
4959
4960 async fn handle_update_project(
4961 this: ModelHandle<Self>,
4962 envelope: TypedEnvelope<proto::UpdateProject>,
4963 _: Arc<Client>,
4964 mut cx: AsyncAppContext,
4965 ) -> Result<()> {
4966 this.update(&mut cx, |this, cx| {
4967 // Don't handle messages that were sent before the response to us joining the project
4968 if envelope.message_id > this.join_project_response_message_id {
4969 this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
4970 }
4971 Ok(())
4972 })
4973 }
4974
4975 async fn handle_update_worktree(
4976 this: ModelHandle<Self>,
4977 envelope: TypedEnvelope<proto::UpdateWorktree>,
4978 _: Arc<Client>,
4979 mut cx: AsyncAppContext,
4980 ) -> Result<()> {
4981 this.update(&mut cx, |this, cx| {
4982 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4983 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4984 worktree.update(cx, |worktree, _| {
4985 let worktree = worktree.as_remote_mut().unwrap();
4986 worktree.update_from_remote(envelope.payload);
4987 });
4988 }
4989 Ok(())
4990 })
4991 }
4992
4993 async fn handle_create_project_entry(
4994 this: ModelHandle<Self>,
4995 envelope: TypedEnvelope<proto::CreateProjectEntry>,
4996 _: Arc<Client>,
4997 mut cx: AsyncAppContext,
4998 ) -> Result<proto::ProjectEntryResponse> {
4999 let worktree = this.update(&mut cx, |this, cx| {
5000 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5001 this.worktree_for_id(worktree_id, cx)
5002 .ok_or_else(|| anyhow!("worktree not found"))
5003 })?;
5004 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5005 let entry = worktree
5006 .update(&mut cx, |worktree, cx| {
5007 let worktree = worktree.as_local_mut().unwrap();
5008 let path = PathBuf::from(envelope.payload.path);
5009 worktree.create_entry(path, envelope.payload.is_directory, cx)
5010 })
5011 .await?;
5012 Ok(proto::ProjectEntryResponse {
5013 entry: Some((&entry).into()),
5014 worktree_scan_id: worktree_scan_id as u64,
5015 })
5016 }
5017
5018 async fn handle_rename_project_entry(
5019 this: ModelHandle<Self>,
5020 envelope: TypedEnvelope<proto::RenameProjectEntry>,
5021 _: Arc<Client>,
5022 mut cx: AsyncAppContext,
5023 ) -> Result<proto::ProjectEntryResponse> {
5024 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5025 let worktree = this.read_with(&cx, |this, cx| {
5026 this.worktree_for_entry(entry_id, cx)
5027 .ok_or_else(|| anyhow!("worktree not found"))
5028 })?;
5029 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5030 let entry = worktree
5031 .update(&mut cx, |worktree, cx| {
5032 let new_path = PathBuf::from(envelope.payload.new_path);
5033 worktree
5034 .as_local_mut()
5035 .unwrap()
5036 .rename_entry(entry_id, new_path, cx)
5037 .ok_or_else(|| anyhow!("invalid entry"))
5038 })?
5039 .await?;
5040 Ok(proto::ProjectEntryResponse {
5041 entry: Some((&entry).into()),
5042 worktree_scan_id: worktree_scan_id as u64,
5043 })
5044 }
5045
5046 async fn handle_copy_project_entry(
5047 this: ModelHandle<Self>,
5048 envelope: TypedEnvelope<proto::CopyProjectEntry>,
5049 _: Arc<Client>,
5050 mut cx: AsyncAppContext,
5051 ) -> Result<proto::ProjectEntryResponse> {
5052 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5053 let worktree = this.read_with(&cx, |this, cx| {
5054 this.worktree_for_entry(entry_id, cx)
5055 .ok_or_else(|| anyhow!("worktree not found"))
5056 })?;
5057 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5058 let entry = worktree
5059 .update(&mut cx, |worktree, cx| {
5060 let new_path = PathBuf::from(envelope.payload.new_path);
5061 worktree
5062 .as_local_mut()
5063 .unwrap()
5064 .copy_entry(entry_id, new_path, cx)
5065 .ok_or_else(|| anyhow!("invalid entry"))
5066 })?
5067 .await?;
5068 Ok(proto::ProjectEntryResponse {
5069 entry: Some((&entry).into()),
5070 worktree_scan_id: worktree_scan_id as u64,
5071 })
5072 }
5073
5074 async fn handle_delete_project_entry(
5075 this: ModelHandle<Self>,
5076 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
5077 _: Arc<Client>,
5078 mut cx: AsyncAppContext,
5079 ) -> Result<proto::ProjectEntryResponse> {
5080 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5081 let worktree = this.read_with(&cx, |this, cx| {
5082 this.worktree_for_entry(entry_id, cx)
5083 .ok_or_else(|| anyhow!("worktree not found"))
5084 })?;
5085 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5086 worktree
5087 .update(&mut cx, |worktree, cx| {
5088 worktree
5089 .as_local_mut()
5090 .unwrap()
5091 .delete_entry(entry_id, cx)
5092 .ok_or_else(|| anyhow!("invalid entry"))
5093 })?
5094 .await?;
5095 Ok(proto::ProjectEntryResponse {
5096 entry: None,
5097 worktree_scan_id: worktree_scan_id as u64,
5098 })
5099 }
5100
5101 async fn handle_update_diagnostic_summary(
5102 this: ModelHandle<Self>,
5103 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
5104 _: Arc<Client>,
5105 mut cx: AsyncAppContext,
5106 ) -> Result<()> {
5107 this.update(&mut cx, |this, cx| {
5108 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5109 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5110 if let Some(summary) = envelope.payload.summary {
5111 let project_path = ProjectPath {
5112 worktree_id,
5113 path: Path::new(&summary.path).into(),
5114 };
5115 worktree.update(cx, |worktree, _| {
5116 worktree
5117 .as_remote_mut()
5118 .unwrap()
5119 .update_diagnostic_summary(project_path.path.clone(), &summary);
5120 });
5121 cx.emit(Event::DiagnosticsUpdated {
5122 language_server_id: LanguageServerId(summary.language_server_id as usize),
5123 path: project_path,
5124 });
5125 }
5126 }
5127 Ok(())
5128 })
5129 }
5130
5131 async fn handle_start_language_server(
5132 this: ModelHandle<Self>,
5133 envelope: TypedEnvelope<proto::StartLanguageServer>,
5134 _: Arc<Client>,
5135 mut cx: AsyncAppContext,
5136 ) -> Result<()> {
5137 let server = envelope
5138 .payload
5139 .server
5140 .ok_or_else(|| anyhow!("invalid server"))?;
5141 this.update(&mut cx, |this, cx| {
5142 this.language_server_statuses.insert(
5143 LanguageServerId(server.id as usize),
5144 LanguageServerStatus {
5145 name: server.name,
5146 pending_work: Default::default(),
5147 has_pending_diagnostic_updates: false,
5148 progress_tokens: Default::default(),
5149 },
5150 );
5151 cx.notify();
5152 });
5153 Ok(())
5154 }
5155
5156 async fn handle_update_language_server(
5157 this: ModelHandle<Self>,
5158 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
5159 _: Arc<Client>,
5160 mut cx: AsyncAppContext,
5161 ) -> Result<()> {
5162 this.update(&mut cx, |this, cx| {
5163 let language_server_id = LanguageServerId(envelope.payload.language_server_id as usize);
5164
5165 match envelope
5166 .payload
5167 .variant
5168 .ok_or_else(|| anyhow!("invalid variant"))?
5169 {
5170 proto::update_language_server::Variant::WorkStart(payload) => {
5171 this.on_lsp_work_start(
5172 language_server_id,
5173 payload.token,
5174 LanguageServerProgress {
5175 message: payload.message,
5176 percentage: payload.percentage.map(|p| p as usize),
5177 last_update_at: Instant::now(),
5178 },
5179 cx,
5180 );
5181 }
5182
5183 proto::update_language_server::Variant::WorkProgress(payload) => {
5184 this.on_lsp_work_progress(
5185 language_server_id,
5186 payload.token,
5187 LanguageServerProgress {
5188 message: payload.message,
5189 percentage: payload.percentage.map(|p| p as usize),
5190 last_update_at: Instant::now(),
5191 },
5192 cx,
5193 );
5194 }
5195
5196 proto::update_language_server::Variant::WorkEnd(payload) => {
5197 this.on_lsp_work_end(language_server_id, payload.token, cx);
5198 }
5199
5200 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
5201 this.disk_based_diagnostics_started(language_server_id, cx);
5202 }
5203
5204 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
5205 this.disk_based_diagnostics_finished(language_server_id, cx)
5206 }
5207 }
5208
5209 Ok(())
5210 })
5211 }
5212
5213 async fn handle_update_buffer(
5214 this: ModelHandle<Self>,
5215 envelope: TypedEnvelope<proto::UpdateBuffer>,
5216 _: Arc<Client>,
5217 mut cx: AsyncAppContext,
5218 ) -> Result<proto::Ack> {
5219 this.update(&mut cx, |this, cx| {
5220 let payload = envelope.payload.clone();
5221 let buffer_id = payload.buffer_id;
5222 let ops = payload
5223 .operations
5224 .into_iter()
5225 .map(language::proto::deserialize_operation)
5226 .collect::<Result<Vec<_>, _>>()?;
5227 let is_remote = this.is_remote();
5228 match this.opened_buffers.entry(buffer_id) {
5229 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
5230 OpenBuffer::Strong(buffer) => {
5231 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
5232 }
5233 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
5234 OpenBuffer::Weak(_) => {}
5235 },
5236 hash_map::Entry::Vacant(e) => {
5237 assert!(
5238 is_remote,
5239 "received buffer update from {:?}",
5240 envelope.original_sender_id
5241 );
5242 e.insert(OpenBuffer::Operations(ops));
5243 }
5244 }
5245 Ok(proto::Ack {})
5246 })
5247 }
5248
5249 async fn handle_create_buffer_for_peer(
5250 this: ModelHandle<Self>,
5251 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
5252 _: Arc<Client>,
5253 mut cx: AsyncAppContext,
5254 ) -> Result<()> {
5255 this.update(&mut cx, |this, cx| {
5256 match envelope
5257 .payload
5258 .variant
5259 .ok_or_else(|| anyhow!("missing variant"))?
5260 {
5261 proto::create_buffer_for_peer::Variant::State(mut state) => {
5262 let mut buffer_file = None;
5263 if let Some(file) = state.file.take() {
5264 let worktree_id = WorktreeId::from_proto(file.worktree_id);
5265 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
5266 anyhow!("no worktree found for id {}", file.worktree_id)
5267 })?;
5268 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
5269 as Arc<dyn language::File>);
5270 }
5271
5272 let buffer_id = state.id;
5273 let buffer = cx.add_model(|_| {
5274 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
5275 });
5276 this.incomplete_remote_buffers
5277 .insert(buffer_id, Some(buffer));
5278 }
5279 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
5280 let buffer = this
5281 .incomplete_remote_buffers
5282 .get(&chunk.buffer_id)
5283 .cloned()
5284 .flatten()
5285 .ok_or_else(|| {
5286 anyhow!(
5287 "received chunk for buffer {} without initial state",
5288 chunk.buffer_id
5289 )
5290 })?;
5291 let operations = chunk
5292 .operations
5293 .into_iter()
5294 .map(language::proto::deserialize_operation)
5295 .collect::<Result<Vec<_>>>()?;
5296 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
5297
5298 if chunk.is_last {
5299 this.incomplete_remote_buffers.remove(&chunk.buffer_id);
5300 this.register_buffer(&buffer, cx)?;
5301 }
5302 }
5303 }
5304
5305 Ok(())
5306 })
5307 }
5308
5309 async fn handle_update_diff_base(
5310 this: ModelHandle<Self>,
5311 envelope: TypedEnvelope<proto::UpdateDiffBase>,
5312 _: Arc<Client>,
5313 mut cx: AsyncAppContext,
5314 ) -> Result<()> {
5315 this.update(&mut cx, |this, cx| {
5316 let buffer_id = envelope.payload.buffer_id;
5317 let diff_base = envelope.payload.diff_base;
5318 if let Some(buffer) = this
5319 .opened_buffers
5320 .get_mut(&buffer_id)
5321 .and_then(|b| b.upgrade(cx))
5322 .or_else(|| {
5323 this.incomplete_remote_buffers
5324 .get(&buffer_id)
5325 .cloned()
5326 .flatten()
5327 })
5328 {
5329 buffer.update(cx, |buffer, cx| buffer.set_diff_base(diff_base, cx));
5330 }
5331 Ok(())
5332 })
5333 }
5334
5335 async fn handle_update_buffer_file(
5336 this: ModelHandle<Self>,
5337 envelope: TypedEnvelope<proto::UpdateBufferFile>,
5338 _: Arc<Client>,
5339 mut cx: AsyncAppContext,
5340 ) -> Result<()> {
5341 let buffer_id = envelope.payload.buffer_id;
5342
5343 this.update(&mut cx, |this, cx| {
5344 let payload = envelope.payload.clone();
5345 if let Some(buffer) = this
5346 .opened_buffers
5347 .get(&buffer_id)
5348 .and_then(|b| b.upgrade(cx))
5349 .or_else(|| {
5350 this.incomplete_remote_buffers
5351 .get(&buffer_id)
5352 .cloned()
5353 .flatten()
5354 })
5355 {
5356 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
5357 let worktree = this
5358 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
5359 .ok_or_else(|| anyhow!("no such worktree"))?;
5360 let file = File::from_proto(file, worktree, cx)?;
5361 buffer.update(cx, |buffer, cx| {
5362 buffer.file_updated(Arc::new(file), cx).detach();
5363 });
5364 this.detect_language_for_buffer(&buffer, cx);
5365 }
5366 Ok(())
5367 })
5368 }
5369
5370 async fn handle_save_buffer(
5371 this: ModelHandle<Self>,
5372 envelope: TypedEnvelope<proto::SaveBuffer>,
5373 _: Arc<Client>,
5374 mut cx: AsyncAppContext,
5375 ) -> Result<proto::BufferSaved> {
5376 let buffer_id = envelope.payload.buffer_id;
5377 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
5378 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
5379 let buffer = this
5380 .opened_buffers
5381 .get(&buffer_id)
5382 .and_then(|buffer| buffer.upgrade(cx))
5383 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
5384 anyhow::Ok((project_id, buffer))
5385 })?;
5386 buffer
5387 .update(&mut cx, |buffer, _| {
5388 buffer.wait_for_version(deserialize_version(&envelope.payload.version))
5389 })
5390 .await?;
5391 let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
5392
5393 let (saved_version, fingerprint, mtime) = this
5394 .update(&mut cx, |this, cx| this.save_buffer(buffer, cx))
5395 .await?;
5396 Ok(proto::BufferSaved {
5397 project_id,
5398 buffer_id,
5399 version: serialize_version(&saved_version),
5400 mtime: Some(mtime.into()),
5401 fingerprint: language::proto::serialize_fingerprint(fingerprint),
5402 })
5403 }
5404
5405 async fn handle_reload_buffers(
5406 this: ModelHandle<Self>,
5407 envelope: TypedEnvelope<proto::ReloadBuffers>,
5408 _: Arc<Client>,
5409 mut cx: AsyncAppContext,
5410 ) -> Result<proto::ReloadBuffersResponse> {
5411 let sender_id = envelope.original_sender_id()?;
5412 let reload = this.update(&mut cx, |this, cx| {
5413 let mut buffers = HashSet::default();
5414 for buffer_id in &envelope.payload.buffer_ids {
5415 buffers.insert(
5416 this.opened_buffers
5417 .get(buffer_id)
5418 .and_then(|buffer| buffer.upgrade(cx))
5419 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5420 );
5421 }
5422 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
5423 })?;
5424
5425 let project_transaction = reload.await?;
5426 let project_transaction = this.update(&mut cx, |this, cx| {
5427 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5428 });
5429 Ok(proto::ReloadBuffersResponse {
5430 transaction: Some(project_transaction),
5431 })
5432 }
5433
5434 async fn handle_synchronize_buffers(
5435 this: ModelHandle<Self>,
5436 envelope: TypedEnvelope<proto::SynchronizeBuffers>,
5437 _: Arc<Client>,
5438 mut cx: AsyncAppContext,
5439 ) -> Result<proto::SynchronizeBuffersResponse> {
5440 let project_id = envelope.payload.project_id;
5441 let mut response = proto::SynchronizeBuffersResponse {
5442 buffers: Default::default(),
5443 };
5444
5445 this.update(&mut cx, |this, cx| {
5446 let Some(guest_id) = envelope.original_sender_id else {
5447 log::error!("missing original_sender_id on SynchronizeBuffers request");
5448 return;
5449 };
5450
5451 this.shared_buffers.entry(guest_id).or_default().clear();
5452 for buffer in envelope.payload.buffers {
5453 let buffer_id = buffer.id;
5454 let remote_version = language::proto::deserialize_version(&buffer.version);
5455 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
5456 this.shared_buffers
5457 .entry(guest_id)
5458 .or_default()
5459 .insert(buffer_id);
5460
5461 let buffer = buffer.read(cx);
5462 response.buffers.push(proto::BufferVersion {
5463 id: buffer_id,
5464 version: language::proto::serialize_version(&buffer.version),
5465 });
5466
5467 let operations = buffer.serialize_ops(Some(remote_version), cx);
5468 let client = this.client.clone();
5469 if let Some(file) = buffer.file() {
5470 client
5471 .send(proto::UpdateBufferFile {
5472 project_id,
5473 buffer_id: buffer_id as u64,
5474 file: Some(file.to_proto()),
5475 })
5476 .log_err();
5477 }
5478
5479 client
5480 .send(proto::UpdateDiffBase {
5481 project_id,
5482 buffer_id: buffer_id as u64,
5483 diff_base: buffer.diff_base().map(Into::into),
5484 })
5485 .log_err();
5486
5487 client
5488 .send(proto::BufferReloaded {
5489 project_id,
5490 buffer_id,
5491 version: language::proto::serialize_version(buffer.saved_version()),
5492 mtime: Some(buffer.saved_mtime().into()),
5493 fingerprint: language::proto::serialize_fingerprint(
5494 buffer.saved_version_fingerprint(),
5495 ),
5496 line_ending: language::proto::serialize_line_ending(
5497 buffer.line_ending(),
5498 ) as i32,
5499 })
5500 .log_err();
5501
5502 cx.background()
5503 .spawn(
5504 async move {
5505 let operations = operations.await;
5506 for chunk in split_operations(operations) {
5507 client
5508 .request(proto::UpdateBuffer {
5509 project_id,
5510 buffer_id,
5511 operations: chunk,
5512 })
5513 .await?;
5514 }
5515 anyhow::Ok(())
5516 }
5517 .log_err(),
5518 )
5519 .detach();
5520 }
5521 }
5522 });
5523
5524 Ok(response)
5525 }
5526
5527 async fn handle_format_buffers(
5528 this: ModelHandle<Self>,
5529 envelope: TypedEnvelope<proto::FormatBuffers>,
5530 _: Arc<Client>,
5531 mut cx: AsyncAppContext,
5532 ) -> Result<proto::FormatBuffersResponse> {
5533 let sender_id = envelope.original_sender_id()?;
5534 let format = this.update(&mut cx, |this, cx| {
5535 let mut buffers = HashSet::default();
5536 for buffer_id in &envelope.payload.buffer_ids {
5537 buffers.insert(
5538 this.opened_buffers
5539 .get(buffer_id)
5540 .and_then(|buffer| buffer.upgrade(cx))
5541 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5542 );
5543 }
5544 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
5545 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
5546 })?;
5547
5548 let project_transaction = format.await?;
5549 let project_transaction = this.update(&mut cx, |this, cx| {
5550 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5551 });
5552 Ok(proto::FormatBuffersResponse {
5553 transaction: Some(project_transaction),
5554 })
5555 }
5556
5557 async fn handle_apply_additional_edits_for_completion(
5558 this: ModelHandle<Self>,
5559 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
5560 _: Arc<Client>,
5561 mut cx: AsyncAppContext,
5562 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
5563 let (buffer, completion) = this.update(&mut cx, |this, cx| {
5564 let buffer = this
5565 .opened_buffers
5566 .get(&envelope.payload.buffer_id)
5567 .and_then(|buffer| buffer.upgrade(cx))
5568 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5569 let language = buffer.read(cx).language();
5570 let completion = language::proto::deserialize_completion(
5571 envelope
5572 .payload
5573 .completion
5574 .ok_or_else(|| anyhow!("invalid completion"))?,
5575 language.cloned(),
5576 );
5577 Ok::<_, anyhow::Error>((buffer, completion))
5578 })?;
5579
5580 let completion = completion.await?;
5581
5582 let apply_additional_edits = this.update(&mut cx, |this, cx| {
5583 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
5584 });
5585
5586 Ok(proto::ApplyCompletionAdditionalEditsResponse {
5587 transaction: apply_additional_edits
5588 .await?
5589 .as_ref()
5590 .map(language::proto::serialize_transaction),
5591 })
5592 }
5593
5594 async fn handle_apply_code_action(
5595 this: ModelHandle<Self>,
5596 envelope: TypedEnvelope<proto::ApplyCodeAction>,
5597 _: Arc<Client>,
5598 mut cx: AsyncAppContext,
5599 ) -> Result<proto::ApplyCodeActionResponse> {
5600 let sender_id = envelope.original_sender_id()?;
5601 let action = language::proto::deserialize_code_action(
5602 envelope
5603 .payload
5604 .action
5605 .ok_or_else(|| anyhow!("invalid action"))?,
5606 )?;
5607 let apply_code_action = this.update(&mut cx, |this, cx| {
5608 let buffer = this
5609 .opened_buffers
5610 .get(&envelope.payload.buffer_id)
5611 .and_then(|buffer| buffer.upgrade(cx))
5612 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5613 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
5614 })?;
5615
5616 let project_transaction = apply_code_action.await?;
5617 let project_transaction = this.update(&mut cx, |this, cx| {
5618 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5619 });
5620 Ok(proto::ApplyCodeActionResponse {
5621 transaction: Some(project_transaction),
5622 })
5623 }
5624
5625 async fn handle_lsp_command<T: LspCommand>(
5626 this: ModelHandle<Self>,
5627 envelope: TypedEnvelope<T::ProtoRequest>,
5628 _: Arc<Client>,
5629 mut cx: AsyncAppContext,
5630 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
5631 where
5632 <T::LspRequest as lsp::request::Request>::Result: Send,
5633 {
5634 let sender_id = envelope.original_sender_id()?;
5635 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
5636 let buffer_handle = this.read_with(&cx, |this, _| {
5637 this.opened_buffers
5638 .get(&buffer_id)
5639 .and_then(|buffer| buffer.upgrade(&cx))
5640 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
5641 })?;
5642 let request = T::from_proto(
5643 envelope.payload,
5644 this.clone(),
5645 buffer_handle.clone(),
5646 cx.clone(),
5647 )
5648 .await?;
5649 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
5650 let response = this
5651 .update(&mut cx, |this, cx| {
5652 this.request_lsp(buffer_handle, request, cx)
5653 })
5654 .await?;
5655 this.update(&mut cx, |this, cx| {
5656 Ok(T::response_to_proto(
5657 response,
5658 this,
5659 sender_id,
5660 &buffer_version,
5661 cx,
5662 ))
5663 })
5664 }
5665
5666 async fn handle_get_project_symbols(
5667 this: ModelHandle<Self>,
5668 envelope: TypedEnvelope<proto::GetProjectSymbols>,
5669 _: Arc<Client>,
5670 mut cx: AsyncAppContext,
5671 ) -> Result<proto::GetProjectSymbolsResponse> {
5672 let symbols = this
5673 .update(&mut cx, |this, cx| {
5674 this.symbols(&envelope.payload.query, cx)
5675 })
5676 .await?;
5677
5678 Ok(proto::GetProjectSymbolsResponse {
5679 symbols: symbols.iter().map(serialize_symbol).collect(),
5680 })
5681 }
5682
5683 async fn handle_search_project(
5684 this: ModelHandle<Self>,
5685 envelope: TypedEnvelope<proto::SearchProject>,
5686 _: Arc<Client>,
5687 mut cx: AsyncAppContext,
5688 ) -> Result<proto::SearchProjectResponse> {
5689 let peer_id = envelope.original_sender_id()?;
5690 let query = SearchQuery::from_proto(envelope.payload)?;
5691 let result = this
5692 .update(&mut cx, |this, cx| this.search(query, cx))
5693 .await?;
5694
5695 this.update(&mut cx, |this, cx| {
5696 let mut locations = Vec::new();
5697 for (buffer, ranges) in result {
5698 for range in ranges {
5699 let start = serialize_anchor(&range.start);
5700 let end = serialize_anchor(&range.end);
5701 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
5702 locations.push(proto::Location {
5703 buffer_id,
5704 start: Some(start),
5705 end: Some(end),
5706 });
5707 }
5708 }
5709 Ok(proto::SearchProjectResponse { locations })
5710 })
5711 }
5712
5713 async fn handle_open_buffer_for_symbol(
5714 this: ModelHandle<Self>,
5715 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
5716 _: Arc<Client>,
5717 mut cx: AsyncAppContext,
5718 ) -> Result<proto::OpenBufferForSymbolResponse> {
5719 let peer_id = envelope.original_sender_id()?;
5720 let symbol = envelope
5721 .payload
5722 .symbol
5723 .ok_or_else(|| anyhow!("invalid symbol"))?;
5724 let symbol = this
5725 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
5726 .await?;
5727 let symbol = this.read_with(&cx, |this, _| {
5728 let signature = this.symbol_signature(&symbol.path);
5729 if signature == symbol.signature {
5730 Ok(symbol)
5731 } else {
5732 Err(anyhow!("invalid symbol signature"))
5733 }
5734 })?;
5735 let buffer = this
5736 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
5737 .await?;
5738
5739 Ok(proto::OpenBufferForSymbolResponse {
5740 buffer_id: this.update(&mut cx, |this, cx| {
5741 this.create_buffer_for_peer(&buffer, peer_id, cx)
5742 }),
5743 })
5744 }
5745
5746 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
5747 let mut hasher = Sha256::new();
5748 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
5749 hasher.update(project_path.path.to_string_lossy().as_bytes());
5750 hasher.update(self.nonce.to_be_bytes());
5751 hasher.finalize().as_slice().try_into().unwrap()
5752 }
5753
5754 async fn handle_open_buffer_by_id(
5755 this: ModelHandle<Self>,
5756 envelope: TypedEnvelope<proto::OpenBufferById>,
5757 _: Arc<Client>,
5758 mut cx: AsyncAppContext,
5759 ) -> Result<proto::OpenBufferResponse> {
5760 let peer_id = envelope.original_sender_id()?;
5761 let buffer = this
5762 .update(&mut cx, |this, cx| {
5763 this.open_buffer_by_id(envelope.payload.id, cx)
5764 })
5765 .await?;
5766 this.update(&mut cx, |this, cx| {
5767 Ok(proto::OpenBufferResponse {
5768 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5769 })
5770 })
5771 }
5772
5773 async fn handle_open_buffer_by_path(
5774 this: ModelHandle<Self>,
5775 envelope: TypedEnvelope<proto::OpenBufferByPath>,
5776 _: Arc<Client>,
5777 mut cx: AsyncAppContext,
5778 ) -> Result<proto::OpenBufferResponse> {
5779 let peer_id = envelope.original_sender_id()?;
5780 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5781 let open_buffer = this.update(&mut cx, |this, cx| {
5782 this.open_buffer(
5783 ProjectPath {
5784 worktree_id,
5785 path: PathBuf::from(envelope.payload.path).into(),
5786 },
5787 cx,
5788 )
5789 });
5790
5791 let buffer = open_buffer.await?;
5792 this.update(&mut cx, |this, cx| {
5793 Ok(proto::OpenBufferResponse {
5794 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5795 })
5796 })
5797 }
5798
5799 fn serialize_project_transaction_for_peer(
5800 &mut self,
5801 project_transaction: ProjectTransaction,
5802 peer_id: proto::PeerId,
5803 cx: &mut AppContext,
5804 ) -> proto::ProjectTransaction {
5805 let mut serialized_transaction = proto::ProjectTransaction {
5806 buffer_ids: Default::default(),
5807 transactions: Default::default(),
5808 };
5809 for (buffer, transaction) in project_transaction.0 {
5810 serialized_transaction
5811 .buffer_ids
5812 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
5813 serialized_transaction
5814 .transactions
5815 .push(language::proto::serialize_transaction(&transaction));
5816 }
5817 serialized_transaction
5818 }
5819
5820 fn deserialize_project_transaction(
5821 &mut self,
5822 message: proto::ProjectTransaction,
5823 push_to_history: bool,
5824 cx: &mut ModelContext<Self>,
5825 ) -> Task<Result<ProjectTransaction>> {
5826 cx.spawn(|this, mut cx| async move {
5827 let mut project_transaction = ProjectTransaction::default();
5828 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
5829 {
5830 let buffer = this
5831 .update(&mut cx, |this, cx| {
5832 this.wait_for_remote_buffer(buffer_id, cx)
5833 })
5834 .await?;
5835 let transaction = language::proto::deserialize_transaction(transaction)?;
5836 project_transaction.0.insert(buffer, transaction);
5837 }
5838
5839 for (buffer, transaction) in &project_transaction.0 {
5840 buffer
5841 .update(&mut cx, |buffer, _| {
5842 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
5843 })
5844 .await?;
5845
5846 if push_to_history {
5847 buffer.update(&mut cx, |buffer, _| {
5848 buffer.push_transaction(transaction.clone(), Instant::now());
5849 });
5850 }
5851 }
5852
5853 Ok(project_transaction)
5854 })
5855 }
5856
5857 fn create_buffer_for_peer(
5858 &mut self,
5859 buffer: &ModelHandle<Buffer>,
5860 peer_id: proto::PeerId,
5861 cx: &mut AppContext,
5862 ) -> u64 {
5863 let buffer_id = buffer.read(cx).remote_id();
5864 if let Some(ProjectClientState::Local { updates_tx, .. }) = &self.client_state {
5865 updates_tx
5866 .unbounded_send(LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id })
5867 .ok();
5868 }
5869 buffer_id
5870 }
5871
5872 fn wait_for_remote_buffer(
5873 &mut self,
5874 id: u64,
5875 cx: &mut ModelContext<Self>,
5876 ) -> Task<Result<ModelHandle<Buffer>>> {
5877 let mut opened_buffer_rx = self.opened_buffer.1.clone();
5878
5879 cx.spawn_weak(|this, mut cx| async move {
5880 let buffer = loop {
5881 let Some(this) = this.upgrade(&cx) else {
5882 return Err(anyhow!("project dropped"));
5883 };
5884 let buffer = this.read_with(&cx, |this, cx| {
5885 this.opened_buffers
5886 .get(&id)
5887 .and_then(|buffer| buffer.upgrade(cx))
5888 });
5889 if let Some(buffer) = buffer {
5890 break buffer;
5891 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
5892 return Err(anyhow!("disconnected before buffer {} could be opened", id));
5893 }
5894
5895 this.update(&mut cx, |this, _| {
5896 this.incomplete_remote_buffers.entry(id).or_default();
5897 });
5898 drop(this);
5899 opened_buffer_rx
5900 .next()
5901 .await
5902 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
5903 };
5904 buffer.update(&mut cx, |buffer, cx| buffer.git_diff_recalc(cx));
5905 Ok(buffer)
5906 })
5907 }
5908
5909 fn synchronize_remote_buffers(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
5910 let project_id = match self.client_state.as_ref() {
5911 Some(ProjectClientState::Remote {
5912 sharing_has_stopped,
5913 remote_id,
5914 ..
5915 }) => {
5916 if *sharing_has_stopped {
5917 return Task::ready(Err(anyhow!(
5918 "can't synchronize remote buffers on a readonly project"
5919 )));
5920 } else {
5921 *remote_id
5922 }
5923 }
5924 Some(ProjectClientState::Local { .. }) | None => {
5925 return Task::ready(Err(anyhow!(
5926 "can't synchronize remote buffers on a local project"
5927 )))
5928 }
5929 };
5930
5931 let client = self.client.clone();
5932 cx.spawn(|this, cx| async move {
5933 let (buffers, incomplete_buffer_ids) = this.read_with(&cx, |this, cx| {
5934 let buffers = this
5935 .opened_buffers
5936 .iter()
5937 .filter_map(|(id, buffer)| {
5938 let buffer = buffer.upgrade(cx)?;
5939 Some(proto::BufferVersion {
5940 id: *id,
5941 version: language::proto::serialize_version(&buffer.read(cx).version),
5942 })
5943 })
5944 .collect();
5945 let incomplete_buffer_ids = this
5946 .incomplete_remote_buffers
5947 .keys()
5948 .copied()
5949 .collect::<Vec<_>>();
5950
5951 (buffers, incomplete_buffer_ids)
5952 });
5953 let response = client
5954 .request(proto::SynchronizeBuffers {
5955 project_id,
5956 buffers,
5957 })
5958 .await?;
5959
5960 let send_updates_for_buffers = response.buffers.into_iter().map(|buffer| {
5961 let client = client.clone();
5962 let buffer_id = buffer.id;
5963 let remote_version = language::proto::deserialize_version(&buffer.version);
5964 this.read_with(&cx, |this, cx| {
5965 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
5966 let operations = buffer.read(cx).serialize_ops(Some(remote_version), cx);
5967 cx.background().spawn(async move {
5968 let operations = operations.await;
5969 for chunk in split_operations(operations) {
5970 client
5971 .request(proto::UpdateBuffer {
5972 project_id,
5973 buffer_id,
5974 operations: chunk,
5975 })
5976 .await?;
5977 }
5978 anyhow::Ok(())
5979 })
5980 } else {
5981 Task::ready(Ok(()))
5982 }
5983 })
5984 });
5985
5986 // Any incomplete buffers have open requests waiting. Request that the host sends
5987 // creates these buffers for us again to unblock any waiting futures.
5988 for id in incomplete_buffer_ids {
5989 cx.background()
5990 .spawn(client.request(proto::OpenBufferById { project_id, id }))
5991 .detach();
5992 }
5993
5994 futures::future::join_all(send_updates_for_buffers)
5995 .await
5996 .into_iter()
5997 .collect()
5998 })
5999 }
6000
6001 pub fn worktree_metadata_protos(&self, cx: &AppContext) -> Vec<proto::WorktreeMetadata> {
6002 self.worktrees(cx)
6003 .map(|worktree| {
6004 let worktree = worktree.read(cx);
6005 proto::WorktreeMetadata {
6006 id: worktree.id().to_proto(),
6007 root_name: worktree.root_name().into(),
6008 visible: worktree.is_visible(),
6009 abs_path: worktree.abs_path().to_string_lossy().into(),
6010 }
6011 })
6012 .collect()
6013 }
6014
6015 fn set_worktrees_from_proto(
6016 &mut self,
6017 worktrees: Vec<proto::WorktreeMetadata>,
6018 cx: &mut ModelContext<Project>,
6019 ) -> Result<()> {
6020 let replica_id = self.replica_id();
6021 let remote_id = self.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
6022
6023 let mut old_worktrees_by_id = self
6024 .worktrees
6025 .drain(..)
6026 .filter_map(|worktree| {
6027 let worktree = worktree.upgrade(cx)?;
6028 Some((worktree.read(cx).id(), worktree))
6029 })
6030 .collect::<HashMap<_, _>>();
6031
6032 for worktree in worktrees {
6033 if let Some(old_worktree) =
6034 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
6035 {
6036 self.worktrees.push(WorktreeHandle::Strong(old_worktree));
6037 } else {
6038 let worktree =
6039 Worktree::remote(remote_id, replica_id, worktree, self.client.clone(), cx);
6040 let _ = self.add_worktree(&worktree, cx);
6041 }
6042 }
6043
6044 self.metadata_changed(cx);
6045 for (id, _) in old_worktrees_by_id {
6046 cx.emit(Event::WorktreeRemoved(id));
6047 }
6048
6049 Ok(())
6050 }
6051
6052 fn set_collaborators_from_proto(
6053 &mut self,
6054 messages: Vec<proto::Collaborator>,
6055 cx: &mut ModelContext<Self>,
6056 ) -> Result<()> {
6057 let mut collaborators = HashMap::default();
6058 for message in messages {
6059 let collaborator = Collaborator::from_proto(message)?;
6060 collaborators.insert(collaborator.peer_id, collaborator);
6061 }
6062 for old_peer_id in self.collaborators.keys() {
6063 if !collaborators.contains_key(old_peer_id) {
6064 cx.emit(Event::CollaboratorLeft(*old_peer_id));
6065 }
6066 }
6067 self.collaborators = collaborators;
6068 Ok(())
6069 }
6070
6071 fn deserialize_symbol(
6072 &self,
6073 serialized_symbol: proto::Symbol,
6074 ) -> impl Future<Output = Result<Symbol>> {
6075 let languages = self.languages.clone();
6076 async move {
6077 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
6078 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
6079 let start = serialized_symbol
6080 .start
6081 .ok_or_else(|| anyhow!("invalid start"))?;
6082 let end = serialized_symbol
6083 .end
6084 .ok_or_else(|| anyhow!("invalid end"))?;
6085 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
6086 let path = ProjectPath {
6087 worktree_id,
6088 path: PathBuf::from(serialized_symbol.path).into(),
6089 };
6090 let language = languages
6091 .language_for_file(&path.path, None)
6092 .await
6093 .log_err();
6094 Ok(Symbol {
6095 language_server_name: LanguageServerName(
6096 serialized_symbol.language_server_name.into(),
6097 ),
6098 source_worktree_id,
6099 path,
6100 label: {
6101 match language {
6102 Some(language) => {
6103 language
6104 .label_for_symbol(&serialized_symbol.name, kind)
6105 .await
6106 }
6107 None => None,
6108 }
6109 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
6110 },
6111
6112 name: serialized_symbol.name,
6113 range: Unclipped(PointUtf16::new(start.row, start.column))
6114 ..Unclipped(PointUtf16::new(end.row, end.column)),
6115 kind,
6116 signature: serialized_symbol
6117 .signature
6118 .try_into()
6119 .map_err(|_| anyhow!("invalid signature"))?,
6120 })
6121 }
6122 }
6123
6124 async fn handle_buffer_saved(
6125 this: ModelHandle<Self>,
6126 envelope: TypedEnvelope<proto::BufferSaved>,
6127 _: Arc<Client>,
6128 mut cx: AsyncAppContext,
6129 ) -> Result<()> {
6130 let fingerprint = deserialize_fingerprint(&envelope.payload.fingerprint)?;
6131 let version = deserialize_version(&envelope.payload.version);
6132 let mtime = envelope
6133 .payload
6134 .mtime
6135 .ok_or_else(|| anyhow!("missing mtime"))?
6136 .into();
6137
6138 this.update(&mut cx, |this, cx| {
6139 let buffer = this
6140 .opened_buffers
6141 .get(&envelope.payload.buffer_id)
6142 .and_then(|buffer| buffer.upgrade(cx))
6143 .or_else(|| {
6144 this.incomplete_remote_buffers
6145 .get(&envelope.payload.buffer_id)
6146 .and_then(|b| b.clone())
6147 });
6148 if let Some(buffer) = buffer {
6149 buffer.update(cx, |buffer, cx| {
6150 buffer.did_save(version, fingerprint, mtime, cx);
6151 });
6152 }
6153 Ok(())
6154 })
6155 }
6156
6157 async fn handle_buffer_reloaded(
6158 this: ModelHandle<Self>,
6159 envelope: TypedEnvelope<proto::BufferReloaded>,
6160 _: Arc<Client>,
6161 mut cx: AsyncAppContext,
6162 ) -> Result<()> {
6163 let payload = envelope.payload;
6164 let version = deserialize_version(&payload.version);
6165 let fingerprint = deserialize_fingerprint(&payload.fingerprint)?;
6166 let line_ending = deserialize_line_ending(
6167 proto::LineEnding::from_i32(payload.line_ending)
6168 .ok_or_else(|| anyhow!("missing line ending"))?,
6169 );
6170 let mtime = payload
6171 .mtime
6172 .ok_or_else(|| anyhow!("missing mtime"))?
6173 .into();
6174 this.update(&mut cx, |this, cx| {
6175 let buffer = this
6176 .opened_buffers
6177 .get(&payload.buffer_id)
6178 .and_then(|buffer| buffer.upgrade(cx))
6179 .or_else(|| {
6180 this.incomplete_remote_buffers
6181 .get(&payload.buffer_id)
6182 .cloned()
6183 .flatten()
6184 });
6185 if let Some(buffer) = buffer {
6186 buffer.update(cx, |buffer, cx| {
6187 buffer.did_reload(version, fingerprint, line_ending, mtime, cx);
6188 });
6189 }
6190 Ok(())
6191 })
6192 }
6193
6194 #[allow(clippy::type_complexity)]
6195 fn edits_from_lsp(
6196 &mut self,
6197 buffer: &ModelHandle<Buffer>,
6198 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
6199 server_id: LanguageServerId,
6200 version: Option<i32>,
6201 cx: &mut ModelContext<Self>,
6202 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
6203 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx);
6204 cx.background().spawn(async move {
6205 let snapshot = snapshot?;
6206 let mut lsp_edits = lsp_edits
6207 .into_iter()
6208 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
6209 .collect::<Vec<_>>();
6210 lsp_edits.sort_by_key(|(range, _)| range.start);
6211
6212 let mut lsp_edits = lsp_edits.into_iter().peekable();
6213 let mut edits = Vec::new();
6214 while let Some((range, mut new_text)) = lsp_edits.next() {
6215 // Clip invalid ranges provided by the language server.
6216 let mut range = snapshot.clip_point_utf16(range.start, Bias::Left)
6217 ..snapshot.clip_point_utf16(range.end, Bias::Left);
6218
6219 // Combine any LSP edits that are adjacent.
6220 //
6221 // Also, combine LSP edits that are separated from each other by only
6222 // a newline. This is important because for some code actions,
6223 // Rust-analyzer rewrites the entire buffer via a series of edits that
6224 // are separated by unchanged newline characters.
6225 //
6226 // In order for the diffing logic below to work properly, any edits that
6227 // cancel each other out must be combined into one.
6228 while let Some((next_range, next_text)) = lsp_edits.peek() {
6229 if next_range.start.0 > range.end {
6230 if next_range.start.0.row > range.end.row + 1
6231 || next_range.start.0.column > 0
6232 || snapshot.clip_point_utf16(
6233 Unclipped(PointUtf16::new(range.end.row, u32::MAX)),
6234 Bias::Left,
6235 ) > range.end
6236 {
6237 break;
6238 }
6239 new_text.push('\n');
6240 }
6241 range.end = snapshot.clip_point_utf16(next_range.end, Bias::Left);
6242 new_text.push_str(next_text);
6243 lsp_edits.next();
6244 }
6245
6246 // For multiline edits, perform a diff of the old and new text so that
6247 // we can identify the changes more precisely, preserving the locations
6248 // of any anchors positioned in the unchanged regions.
6249 if range.end.row > range.start.row {
6250 let mut offset = range.start.to_offset(&snapshot);
6251 let old_text = snapshot.text_for_range(range).collect::<String>();
6252
6253 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
6254 let mut moved_since_edit = true;
6255 for change in diff.iter_all_changes() {
6256 let tag = change.tag();
6257 let value = change.value();
6258 match tag {
6259 ChangeTag::Equal => {
6260 offset += value.len();
6261 moved_since_edit = true;
6262 }
6263 ChangeTag::Delete => {
6264 let start = snapshot.anchor_after(offset);
6265 let end = snapshot.anchor_before(offset + value.len());
6266 if moved_since_edit {
6267 edits.push((start..end, String::new()));
6268 } else {
6269 edits.last_mut().unwrap().0.end = end;
6270 }
6271 offset += value.len();
6272 moved_since_edit = false;
6273 }
6274 ChangeTag::Insert => {
6275 if moved_since_edit {
6276 let anchor = snapshot.anchor_after(offset);
6277 edits.push((anchor..anchor, value.to_string()));
6278 } else {
6279 edits.last_mut().unwrap().1.push_str(value);
6280 }
6281 moved_since_edit = false;
6282 }
6283 }
6284 }
6285 } else if range.end == range.start {
6286 let anchor = snapshot.anchor_after(range.start);
6287 edits.push((anchor..anchor, new_text));
6288 } else {
6289 let edit_start = snapshot.anchor_after(range.start);
6290 let edit_end = snapshot.anchor_before(range.end);
6291 edits.push((edit_start..edit_end, new_text));
6292 }
6293 }
6294
6295 Ok(edits)
6296 })
6297 }
6298
6299 fn buffer_snapshot_for_lsp_version(
6300 &mut self,
6301 buffer: &ModelHandle<Buffer>,
6302 server_id: LanguageServerId,
6303 version: Option<i32>,
6304 cx: &AppContext,
6305 ) -> Result<TextBufferSnapshot> {
6306 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
6307
6308 if let Some(version) = version {
6309 let buffer_id = buffer.read(cx).remote_id();
6310 let snapshots = self
6311 .buffer_snapshots
6312 .get_mut(&buffer_id)
6313 .and_then(|m| m.get_mut(&server_id))
6314 .ok_or_else(|| {
6315 anyhow!("no snapshots found for buffer {buffer_id} and server {server_id}")
6316 })?;
6317
6318 let found_snapshot = snapshots
6319 .binary_search_by_key(&version, |e| e.version)
6320 .map(|ix| snapshots[ix].snapshot.clone())
6321 .map_err(|_| {
6322 anyhow!("snapshot not found for buffer {buffer_id} server {server_id} at version {version}")
6323 })?;
6324
6325 snapshots.retain(|snapshot| snapshot.version + OLD_VERSIONS_TO_RETAIN >= version);
6326 Ok(found_snapshot)
6327 } else {
6328 Ok((buffer.read(cx)).text_snapshot())
6329 }
6330 }
6331
6332 pub fn language_servers_iter_for_buffer(
6333 &self,
6334 buffer: &Buffer,
6335 cx: &AppContext,
6336 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6337 self.language_server_ids_for_buffer(buffer, cx)
6338 .into_iter()
6339 .filter_map(|server_id| {
6340 let server = self.language_servers.get(&server_id)?;
6341 if let LanguageServerState::Running {
6342 adapter, server, ..
6343 } = server
6344 {
6345 Some((adapter, server))
6346 } else {
6347 None
6348 }
6349 })
6350 }
6351
6352 fn language_servers_for_buffer(
6353 &self,
6354 buffer: &Buffer,
6355 cx: &AppContext,
6356 ) -> Vec<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6357 self.language_servers_iter_for_buffer(buffer, cx).collect()
6358 }
6359
6360 fn primary_language_servers_for_buffer(
6361 &self,
6362 buffer: &Buffer,
6363 cx: &AppContext,
6364 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6365 self.language_servers_iter_for_buffer(buffer, cx).next()
6366 }
6367
6368 fn language_server_for_buffer(
6369 &self,
6370 buffer: &Buffer,
6371 server_id: LanguageServerId,
6372 cx: &AppContext,
6373 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6374 self.language_servers_iter_for_buffer(buffer, cx)
6375 .find(|(_, s)| s.server_id() == server_id)
6376 }
6377
6378 fn language_server_ids_for_buffer(
6379 &self,
6380 buffer: &Buffer,
6381 cx: &AppContext,
6382 ) -> Vec<LanguageServerId> {
6383 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
6384 let worktree_id = file.worktree_id(cx);
6385 language
6386 .lsp_adapters()
6387 .iter()
6388 .flat_map(|adapter| {
6389 let key = (worktree_id, adapter.name.clone());
6390 self.language_server_ids.get(&key).copied()
6391 })
6392 .collect()
6393 } else {
6394 Vec::new()
6395 }
6396 }
6397}
6398
6399impl WorktreeHandle {
6400 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
6401 match self {
6402 WorktreeHandle::Strong(handle) => Some(handle.clone()),
6403 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
6404 }
6405 }
6406}
6407
6408impl OpenBuffer {
6409 pub fn upgrade(&self, cx: &impl UpgradeModelHandle) -> Option<ModelHandle<Buffer>> {
6410 match self {
6411 OpenBuffer::Strong(handle) => Some(handle.clone()),
6412 OpenBuffer::Weak(handle) => handle.upgrade(cx),
6413 OpenBuffer::Operations(_) => None,
6414 }
6415 }
6416}
6417
6418pub struct PathMatchCandidateSet {
6419 pub snapshot: Snapshot,
6420 pub include_ignored: bool,
6421 pub include_root_name: bool,
6422}
6423
6424impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
6425 type Candidates = PathMatchCandidateSetIter<'a>;
6426
6427 fn id(&self) -> usize {
6428 self.snapshot.id().to_usize()
6429 }
6430
6431 fn len(&self) -> usize {
6432 if self.include_ignored {
6433 self.snapshot.file_count()
6434 } else {
6435 self.snapshot.visible_file_count()
6436 }
6437 }
6438
6439 fn prefix(&self) -> Arc<str> {
6440 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
6441 self.snapshot.root_name().into()
6442 } else if self.include_root_name {
6443 format!("{}/", self.snapshot.root_name()).into()
6444 } else {
6445 "".into()
6446 }
6447 }
6448
6449 fn candidates(&'a self, start: usize) -> Self::Candidates {
6450 PathMatchCandidateSetIter {
6451 traversal: self.snapshot.files(self.include_ignored, start),
6452 }
6453 }
6454}
6455
6456pub struct PathMatchCandidateSetIter<'a> {
6457 traversal: Traversal<'a>,
6458}
6459
6460impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
6461 type Item = fuzzy::PathMatchCandidate<'a>;
6462
6463 fn next(&mut self) -> Option<Self::Item> {
6464 self.traversal.next().map(|entry| {
6465 if let EntryKind::File(char_bag) = entry.kind {
6466 fuzzy::PathMatchCandidate {
6467 path: &entry.path,
6468 char_bag,
6469 }
6470 } else {
6471 unreachable!()
6472 }
6473 })
6474 }
6475}
6476
6477impl Entity for Project {
6478 type Event = Event;
6479
6480 fn release(&mut self, cx: &mut gpui::AppContext) {
6481 match &self.client_state {
6482 Some(ProjectClientState::Local { .. }) => {
6483 let _ = self.unshare_internal(cx);
6484 }
6485 Some(ProjectClientState::Remote { remote_id, .. }) => {
6486 let _ = self.client.send(proto::LeaveProject {
6487 project_id: *remote_id,
6488 });
6489 self.disconnected_from_host_internal(cx);
6490 }
6491 _ => {}
6492 }
6493 }
6494
6495 fn app_will_quit(
6496 &mut self,
6497 _: &mut AppContext,
6498 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
6499 let shutdown_futures = self
6500 .language_servers
6501 .drain()
6502 .map(|(_, server_state)| async {
6503 match server_state {
6504 LanguageServerState::Running { server, .. } => server.shutdown()?.await,
6505 LanguageServerState::Starting(starting_server) => {
6506 starting_server.await?.shutdown()?.await
6507 }
6508 }
6509 })
6510 .collect::<Vec<_>>();
6511
6512 Some(
6513 async move {
6514 futures::future::join_all(shutdown_futures).await;
6515 }
6516 .boxed(),
6517 )
6518 }
6519}
6520
6521impl Collaborator {
6522 fn from_proto(message: proto::Collaborator) -> Result<Self> {
6523 Ok(Self {
6524 peer_id: message.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?,
6525 replica_id: message.replica_id as ReplicaId,
6526 })
6527 }
6528}
6529
6530impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
6531 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
6532 Self {
6533 worktree_id,
6534 path: path.as_ref().into(),
6535 }
6536 }
6537}
6538
6539fn split_operations(
6540 mut operations: Vec<proto::Operation>,
6541) -> impl Iterator<Item = Vec<proto::Operation>> {
6542 #[cfg(any(test, feature = "test-support"))]
6543 const CHUNK_SIZE: usize = 5;
6544
6545 #[cfg(not(any(test, feature = "test-support")))]
6546 const CHUNK_SIZE: usize = 100;
6547
6548 let mut done = false;
6549 std::iter::from_fn(move || {
6550 if done {
6551 return None;
6552 }
6553
6554 let operations = operations
6555 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
6556 .collect::<Vec<_>>();
6557 if operations.is_empty() {
6558 done = true;
6559 }
6560 Some(operations)
6561 })
6562}
6563
6564fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
6565 proto::Symbol {
6566 language_server_name: symbol.language_server_name.0.to_string(),
6567 source_worktree_id: symbol.source_worktree_id.to_proto(),
6568 worktree_id: symbol.path.worktree_id.to_proto(),
6569 path: symbol.path.path.to_string_lossy().to_string(),
6570 name: symbol.name.clone(),
6571 kind: unsafe { mem::transmute(symbol.kind) },
6572 start: Some(proto::PointUtf16 {
6573 row: symbol.range.start.0.row,
6574 column: symbol.range.start.0.column,
6575 }),
6576 end: Some(proto::PointUtf16 {
6577 row: symbol.range.end.0.row,
6578 column: symbol.range.end.0.column,
6579 }),
6580 signature: symbol.signature.to_vec(),
6581 }
6582}
6583
6584fn relativize_path(base: &Path, path: &Path) -> PathBuf {
6585 let mut path_components = path.components();
6586 let mut base_components = base.components();
6587 let mut components: Vec<Component> = Vec::new();
6588 loop {
6589 match (path_components.next(), base_components.next()) {
6590 (None, None) => break,
6591 (Some(a), None) => {
6592 components.push(a);
6593 components.extend(path_components.by_ref());
6594 break;
6595 }
6596 (None, _) => components.push(Component::ParentDir),
6597 (Some(a), Some(b)) if components.is_empty() && a == b => (),
6598 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
6599 (Some(a), Some(_)) => {
6600 components.push(Component::ParentDir);
6601 for _ in base_components {
6602 components.push(Component::ParentDir);
6603 }
6604 components.push(a);
6605 components.extend(path_components.by_ref());
6606 break;
6607 }
6608 }
6609 }
6610 components.iter().map(|c| c.as_os_str()).collect()
6611}
6612
6613impl Item for Buffer {
6614 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
6615 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
6616 }
6617
6618 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
6619 File::from_dyn(self.file()).map(|file| ProjectPath {
6620 worktree_id: file.worktree_id(cx),
6621 path: file.path().clone(),
6622 })
6623 }
6624}