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, BorrowAppContext, Entity, ModelContext,
23 ModelHandle, Task, 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 LanguageServerAdded(LanguageServerId),
194 LanguageServerRemoved(LanguageServerId),
195 ActiveEntryChanged(Option<ProjectEntryId>),
196 WorktreeAdded,
197 WorktreeRemoved(WorktreeId),
198 DiskBasedDiagnosticsStarted {
199 language_server_id: LanguageServerId,
200 },
201 DiskBasedDiagnosticsFinished {
202 language_server_id: LanguageServerId,
203 },
204 DiagnosticsUpdated {
205 path: ProjectPath,
206 language_server_id: LanguageServerId,
207 },
208 RemoteIdChanged(Option<u64>),
209 DisconnectedFromHost,
210 Closed,
211 CollaboratorUpdated {
212 old_peer_id: proto::PeerId,
213 new_peer_id: proto::PeerId,
214 },
215 CollaboratorLeft(proto::PeerId),
216}
217
218pub enum LanguageServerState {
219 Starting(Task<Option<Arc<LanguageServer>>>),
220 Running {
221 language: Arc<Language>,
222 adapter: Arc<CachedLspAdapter>,
223 server: Arc<LanguageServer>,
224 watched_paths: LspGlobSet,
225 simulate_disk_based_diagnostics_completion: Option<Task<()>>,
226 },
227}
228
229#[derive(Serialize)]
230pub struct LanguageServerStatus {
231 pub name: String,
232 pub pending_work: BTreeMap<String, LanguageServerProgress>,
233 pub has_pending_diagnostic_updates: bool,
234 progress_tokens: HashSet<String>,
235}
236
237#[derive(Clone, Debug, Serialize)]
238pub struct LanguageServerProgress {
239 pub message: Option<String>,
240 pub percentage: Option<usize>,
241 #[serde(skip_serializing)]
242 pub last_update_at: Instant,
243}
244
245#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
246pub struct ProjectPath {
247 pub worktree_id: WorktreeId,
248 pub path: Arc<Path>,
249}
250
251#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
252pub struct DiagnosticSummary {
253 pub error_count: usize,
254 pub warning_count: usize,
255}
256
257#[derive(Debug, Clone)]
258pub struct Location {
259 pub buffer: ModelHandle<Buffer>,
260 pub range: Range<language::Anchor>,
261}
262
263#[derive(Debug, Clone)]
264pub struct LocationLink {
265 pub origin: Option<Location>,
266 pub target: Location,
267}
268
269#[derive(Debug)]
270pub struct DocumentHighlight {
271 pub range: Range<language::Anchor>,
272 pub kind: DocumentHighlightKind,
273}
274
275#[derive(Clone, Debug)]
276pub struct Symbol {
277 pub language_server_name: LanguageServerName,
278 pub source_worktree_id: WorktreeId,
279 pub path: ProjectPath,
280 pub label: CodeLabel,
281 pub name: String,
282 pub kind: lsp::SymbolKind,
283 pub range: Range<Unclipped<PointUtf16>>,
284 pub signature: [u8; 32],
285}
286
287#[derive(Clone, Debug, PartialEq)]
288pub struct HoverBlock {
289 pub text: String,
290 pub language: Option<String>,
291}
292
293impl HoverBlock {
294 fn try_new(marked_string: MarkedString) -> Option<Self> {
295 let result = match marked_string {
296 MarkedString::LanguageString(LanguageString { language, value }) => HoverBlock {
297 text: value,
298 language: Some(language),
299 },
300 MarkedString::String(text) => HoverBlock {
301 text,
302 language: None,
303 },
304 };
305 if result.text.is_empty() {
306 None
307 } else {
308 Some(result)
309 }
310 }
311}
312
313#[derive(Debug)]
314pub struct Hover {
315 pub contents: Vec<HoverBlock>,
316 pub range: Option<Range<language::Anchor>>,
317}
318
319#[derive(Default)]
320pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
321
322impl DiagnosticSummary {
323 fn new<'a, T: 'a>(diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>) -> Self {
324 let mut this = Self {
325 error_count: 0,
326 warning_count: 0,
327 };
328
329 for entry in diagnostics {
330 if entry.diagnostic.is_primary {
331 match entry.diagnostic.severity {
332 DiagnosticSeverity::ERROR => this.error_count += 1,
333 DiagnosticSeverity::WARNING => this.warning_count += 1,
334 _ => {}
335 }
336 }
337 }
338
339 this
340 }
341
342 pub fn is_empty(&self) -> bool {
343 self.error_count == 0 && self.warning_count == 0
344 }
345
346 pub fn to_proto(
347 &self,
348 language_server_id: LanguageServerId,
349 path: &Path,
350 ) -> proto::DiagnosticSummary {
351 proto::DiagnosticSummary {
352 path: path.to_string_lossy().to_string(),
353 language_server_id: language_server_id.0 as u64,
354 error_count: self.error_count as u32,
355 warning_count: self.warning_count as u32,
356 }
357 }
358}
359
360#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
361pub struct ProjectEntryId(usize);
362
363impl ProjectEntryId {
364 pub const MAX: Self = Self(usize::MAX);
365
366 pub fn new(counter: &AtomicUsize) -> Self {
367 Self(counter.fetch_add(1, SeqCst))
368 }
369
370 pub fn from_proto(id: u64) -> Self {
371 Self(id as usize)
372 }
373
374 pub fn to_proto(&self) -> u64 {
375 self.0 as u64
376 }
377
378 pub fn to_usize(&self) -> usize {
379 self.0
380 }
381}
382
383#[derive(Debug, Clone, Copy, PartialEq, Eq)]
384pub enum FormatTrigger {
385 Save,
386 Manual,
387}
388
389impl FormatTrigger {
390 fn from_proto(value: i32) -> FormatTrigger {
391 match value {
392 0 => FormatTrigger::Save,
393 1 => FormatTrigger::Manual,
394 _ => FormatTrigger::Save,
395 }
396 }
397}
398
399impl Project {
400 pub fn init(client: &Arc<Client>) {
401 client.add_model_message_handler(Self::handle_add_collaborator);
402 client.add_model_message_handler(Self::handle_update_project_collaborator);
403 client.add_model_message_handler(Self::handle_remove_collaborator);
404 client.add_model_message_handler(Self::handle_buffer_reloaded);
405 client.add_model_message_handler(Self::handle_buffer_saved);
406 client.add_model_message_handler(Self::handle_start_language_server);
407 client.add_model_message_handler(Self::handle_update_language_server);
408 client.add_model_message_handler(Self::handle_update_project);
409 client.add_model_message_handler(Self::handle_unshare_project);
410 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
411 client.add_model_message_handler(Self::handle_update_buffer_file);
412 client.add_model_request_handler(Self::handle_update_buffer);
413 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
414 client.add_model_message_handler(Self::handle_update_worktree);
415 client.add_model_request_handler(Self::handle_create_project_entry);
416 client.add_model_request_handler(Self::handle_rename_project_entry);
417 client.add_model_request_handler(Self::handle_copy_project_entry);
418 client.add_model_request_handler(Self::handle_delete_project_entry);
419 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
420 client.add_model_request_handler(Self::handle_apply_code_action);
421 client.add_model_request_handler(Self::handle_reload_buffers);
422 client.add_model_request_handler(Self::handle_synchronize_buffers);
423 client.add_model_request_handler(Self::handle_format_buffers);
424 client.add_model_request_handler(Self::handle_lsp_command::<GetCodeActions>);
425 client.add_model_request_handler(Self::handle_lsp_command::<GetCompletions>);
426 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
427 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
428 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
429 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
430 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
431 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
432 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
433 client.add_model_request_handler(Self::handle_search_project);
434 client.add_model_request_handler(Self::handle_get_project_symbols);
435 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
436 client.add_model_request_handler(Self::handle_open_buffer_by_id);
437 client.add_model_request_handler(Self::handle_open_buffer_by_path);
438 client.add_model_request_handler(Self::handle_save_buffer);
439 client.add_model_message_handler(Self::handle_update_diff_base);
440 }
441
442 pub fn local(
443 client: Arc<Client>,
444 user_store: ModelHandle<UserStore>,
445 languages: Arc<LanguageRegistry>,
446 fs: Arc<dyn Fs>,
447 cx: &mut AppContext,
448 ) -> ModelHandle<Self> {
449 cx.add_model(|cx: &mut ModelContext<Self>| {
450 let (tx, rx) = mpsc::unbounded();
451 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
452 .detach();
453 Self {
454 worktrees: Default::default(),
455 buffer_ordered_messages_tx: tx,
456 collaborators: Default::default(),
457 opened_buffers: Default::default(),
458 shared_buffers: Default::default(),
459 incomplete_remote_buffers: Default::default(),
460 loading_buffers_by_path: Default::default(),
461 loading_local_worktrees: Default::default(),
462 buffer_snapshots: Default::default(),
463 join_project_response_message_id: 0,
464 client_state: None,
465 opened_buffer: watch::channel(),
466 client_subscriptions: Vec::new(),
467 _subscriptions: vec![cx.observe_global::<Settings, _>(Self::on_settings_changed)],
468 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
469 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
470 active_entry: None,
471 languages,
472 client,
473 user_store,
474 fs,
475 next_entry_id: Default::default(),
476 next_diagnostic_group_id: Default::default(),
477 language_servers: Default::default(),
478 language_server_ids: Default::default(),
479 language_server_statuses: Default::default(),
480 last_workspace_edits_by_language_server: Default::default(),
481 buffers_being_formatted: Default::default(),
482 nonce: StdRng::from_entropy().gen(),
483 terminals: Terminals {
484 local_handles: Vec::new(),
485 },
486 copilot_enabled: Copilot::global(cx).is_some(),
487 }
488 })
489 }
490
491 pub async fn remote(
492 remote_id: u64,
493 client: Arc<Client>,
494 user_store: ModelHandle<UserStore>,
495 languages: Arc<LanguageRegistry>,
496 fs: Arc<dyn Fs>,
497 mut cx: AsyncAppContext,
498 ) -> Result<ModelHandle<Self>> {
499 client.authenticate_and_connect(true, &cx).await?;
500
501 let subscription = client.subscribe_to_entity(remote_id)?;
502 let response = client
503 .request_envelope(proto::JoinProject {
504 project_id: remote_id,
505 })
506 .await?;
507 let this = cx.add_model(|cx| {
508 let replica_id = response.payload.replica_id as ReplicaId;
509
510 let mut worktrees = Vec::new();
511 for worktree in response.payload.worktrees {
512 let worktree = cx.update(|cx| {
513 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx)
514 });
515 worktrees.push(worktree);
516 }
517
518 let (tx, rx) = mpsc::unbounded();
519 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
520 .detach();
521 let mut this = Self {
522 worktrees: Vec::new(),
523 buffer_ordered_messages_tx: tx,
524 loading_buffers_by_path: Default::default(),
525 opened_buffer: watch::channel(),
526 shared_buffers: Default::default(),
527 incomplete_remote_buffers: Default::default(),
528 loading_local_worktrees: Default::default(),
529 active_entry: None,
530 collaborators: Default::default(),
531 join_project_response_message_id: response.message_id,
532 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
533 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
534 languages,
535 user_store: user_store.clone(),
536 fs,
537 next_entry_id: Default::default(),
538 next_diagnostic_group_id: Default::default(),
539 client_subscriptions: Default::default(),
540 _subscriptions: Default::default(),
541 client: client.clone(),
542 client_state: Some(ProjectClientState::Remote {
543 sharing_has_stopped: false,
544 remote_id,
545 replica_id,
546 }),
547 language_servers: Default::default(),
548 language_server_ids: Default::default(),
549 language_server_statuses: response
550 .payload
551 .language_servers
552 .into_iter()
553 .map(|server| {
554 (
555 LanguageServerId(server.id as usize),
556 LanguageServerStatus {
557 name: server.name,
558 pending_work: Default::default(),
559 has_pending_diagnostic_updates: false,
560 progress_tokens: Default::default(),
561 },
562 )
563 })
564 .collect(),
565 last_workspace_edits_by_language_server: Default::default(),
566 opened_buffers: Default::default(),
567 buffers_being_formatted: Default::default(),
568 buffer_snapshots: Default::default(),
569 nonce: StdRng::from_entropy().gen(),
570 terminals: Terminals {
571 local_handles: Vec::new(),
572 },
573 copilot_enabled: Copilot::global(cx).is_some(),
574 };
575 for worktree in worktrees {
576 let _ = this.add_worktree(&worktree, cx);
577 }
578 this
579 });
580 let subscription = subscription.set_model(&this, &mut cx);
581
582 let user_ids = response
583 .payload
584 .collaborators
585 .iter()
586 .map(|peer| peer.user_id)
587 .collect();
588 user_store
589 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
590 .await?;
591
592 this.update(&mut cx, |this, cx| {
593 this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
594 this.client_subscriptions.push(subscription);
595 anyhow::Ok(())
596 })?;
597
598 Ok(this)
599 }
600
601 #[cfg(any(test, feature = "test-support"))]
602 pub async fn test(
603 fs: Arc<dyn Fs>,
604 root_paths: impl IntoIterator<Item = &Path>,
605 cx: &mut gpui::TestAppContext,
606 ) -> ModelHandle<Project> {
607 if !cx.read(|cx| cx.has_global::<Settings>()) {
608 cx.update(|cx| {
609 cx.set_global(Settings::test(cx));
610 });
611 }
612
613 let mut languages = LanguageRegistry::test();
614 languages.set_executor(cx.background());
615 let http_client = util::http::FakeHttpClient::with_404_response();
616 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
617 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
618 let project =
619 cx.update(|cx| Project::local(client, user_store, Arc::new(languages), fs, cx));
620 for path in root_paths {
621 let (tree, _) = project
622 .update(cx, |project, cx| {
623 project.find_or_create_local_worktree(path, true, cx)
624 })
625 .await
626 .unwrap();
627 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
628 .await;
629 }
630 project
631 }
632
633 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
634 let settings = cx.global::<Settings>();
635
636 let mut language_servers_to_start = Vec::new();
637 for buffer in self.opened_buffers.values() {
638 if let Some(buffer) = buffer.upgrade(cx) {
639 let buffer = buffer.read(cx);
640 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
641 {
642 if settings.enable_language_server(Some(&language.name())) {
643 let worktree = file.worktree.read(cx);
644 language_servers_to_start.push((
645 worktree.id(),
646 worktree.as_local().unwrap().abs_path().clone(),
647 language.clone(),
648 ));
649 }
650 }
651 }
652 }
653
654 let mut language_servers_to_stop = Vec::new();
655 for language in self.languages.to_vec() {
656 for lsp_adapter in language.lsp_adapters() {
657 if !settings.enable_language_server(Some(&language.name())) {
658 let lsp_name = &lsp_adapter.name;
659 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
660 if lsp_name == started_lsp_name {
661 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
662 }
663 }
664 }
665 }
666 }
667
668 // Stop all newly-disabled language servers.
669 for (worktree_id, adapter_name) in language_servers_to_stop {
670 self.stop_language_server(worktree_id, adapter_name, cx)
671 .detach();
672 }
673
674 // Start all the newly-enabled language servers.
675 for (worktree_id, worktree_path, language) in language_servers_to_start {
676 self.start_language_servers(worktree_id, worktree_path, language, cx);
677 }
678
679 if !self.copilot_enabled && Copilot::global(cx).is_some() {
680 self.copilot_enabled = true;
681 for buffer in self.opened_buffers.values() {
682 if let Some(buffer) = buffer.upgrade(cx) {
683 self.register_buffer_with_copilot(&buffer, cx);
684 }
685 }
686 }
687
688 cx.notify();
689 }
690
691 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
692 self.opened_buffers
693 .get(&remote_id)
694 .and_then(|buffer| buffer.upgrade(cx))
695 }
696
697 pub fn languages(&self) -> &Arc<LanguageRegistry> {
698 &self.languages
699 }
700
701 pub fn client(&self) -> Arc<Client> {
702 self.client.clone()
703 }
704
705 pub fn user_store(&self) -> ModelHandle<UserStore> {
706 self.user_store.clone()
707 }
708
709 #[cfg(any(test, feature = "test-support"))]
710 pub fn opened_buffers(&self, cx: &AppContext) -> Vec<ModelHandle<Buffer>> {
711 self.opened_buffers
712 .values()
713 .filter_map(|b| b.upgrade(cx))
714 .collect()
715 }
716
717 #[cfg(any(test, feature = "test-support"))]
718 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
719 let path = path.into();
720 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
721 self.opened_buffers.iter().any(|(_, buffer)| {
722 if let Some(buffer) = buffer.upgrade(cx) {
723 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
724 if file.worktree == worktree && file.path() == &path.path {
725 return true;
726 }
727 }
728 }
729 false
730 })
731 } else {
732 false
733 }
734 }
735
736 pub fn fs(&self) -> &Arc<dyn Fs> {
737 &self.fs
738 }
739
740 pub fn remote_id(&self) -> Option<u64> {
741 match self.client_state.as_ref()? {
742 ProjectClientState::Local { remote_id, .. }
743 | ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
744 }
745 }
746
747 pub fn replica_id(&self) -> ReplicaId {
748 match &self.client_state {
749 Some(ProjectClientState::Remote { replica_id, .. }) => *replica_id,
750 _ => 0,
751 }
752 }
753
754 fn metadata_changed(&mut self, cx: &mut ModelContext<Self>) {
755 if let Some(ProjectClientState::Local { updates_tx, .. }) = &mut self.client_state {
756 updates_tx
757 .unbounded_send(LocalProjectUpdate::WorktreesChanged)
758 .ok();
759 }
760 cx.notify();
761 }
762
763 pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
764 &self.collaborators
765 }
766
767 /// Collect all worktrees, including ones that don't appear in the project panel
768 pub fn worktrees<'a>(
769 &'a self,
770 cx: &'a AppContext,
771 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
772 self.worktrees
773 .iter()
774 .filter_map(move |worktree| worktree.upgrade(cx))
775 }
776
777 /// Collect all user-visible worktrees, the ones that appear in the project panel
778 pub fn visible_worktrees<'a>(
779 &'a self,
780 cx: &'a AppContext,
781 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
782 self.worktrees.iter().filter_map(|worktree| {
783 worktree.upgrade(cx).and_then(|worktree| {
784 if worktree.read(cx).is_visible() {
785 Some(worktree)
786 } else {
787 None
788 }
789 })
790 })
791 }
792
793 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
794 self.visible_worktrees(cx)
795 .map(|tree| tree.read(cx).root_name())
796 }
797
798 pub fn worktree_for_id(
799 &self,
800 id: WorktreeId,
801 cx: &AppContext,
802 ) -> Option<ModelHandle<Worktree>> {
803 self.worktrees(cx)
804 .find(|worktree| worktree.read(cx).id() == id)
805 }
806
807 pub fn worktree_for_entry(
808 &self,
809 entry_id: ProjectEntryId,
810 cx: &AppContext,
811 ) -> Option<ModelHandle<Worktree>> {
812 self.worktrees(cx)
813 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
814 }
815
816 pub fn worktree_id_for_entry(
817 &self,
818 entry_id: ProjectEntryId,
819 cx: &AppContext,
820 ) -> Option<WorktreeId> {
821 self.worktree_for_entry(entry_id, cx)
822 .map(|worktree| worktree.read(cx).id())
823 }
824
825 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
826 paths.iter().all(|path| self.contains_path(path, cx))
827 }
828
829 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
830 for worktree in self.worktrees(cx) {
831 let worktree = worktree.read(cx).as_local();
832 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
833 return true;
834 }
835 }
836 false
837 }
838
839 pub fn create_entry(
840 &mut self,
841 project_path: impl Into<ProjectPath>,
842 is_directory: bool,
843 cx: &mut ModelContext<Self>,
844 ) -> Option<Task<Result<Entry>>> {
845 let project_path = project_path.into();
846 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
847 if self.is_local() {
848 Some(worktree.update(cx, |worktree, cx| {
849 worktree
850 .as_local_mut()
851 .unwrap()
852 .create_entry(project_path.path, is_directory, cx)
853 }))
854 } else {
855 let client = self.client.clone();
856 let project_id = self.remote_id().unwrap();
857 Some(cx.spawn_weak(|_, mut cx| async move {
858 let response = client
859 .request(proto::CreateProjectEntry {
860 worktree_id: project_path.worktree_id.to_proto(),
861 project_id,
862 path: project_path.path.to_string_lossy().into(),
863 is_directory,
864 })
865 .await?;
866 let entry = response
867 .entry
868 .ok_or_else(|| anyhow!("missing entry in response"))?;
869 worktree
870 .update(&mut cx, |worktree, cx| {
871 worktree.as_remote_mut().unwrap().insert_entry(
872 entry,
873 response.worktree_scan_id as usize,
874 cx,
875 )
876 })
877 .await
878 }))
879 }
880 }
881
882 pub fn copy_entry(
883 &mut self,
884 entry_id: ProjectEntryId,
885 new_path: impl Into<Arc<Path>>,
886 cx: &mut ModelContext<Self>,
887 ) -> Option<Task<Result<Entry>>> {
888 let worktree = self.worktree_for_entry(entry_id, cx)?;
889 let new_path = new_path.into();
890 if self.is_local() {
891 worktree.update(cx, |worktree, cx| {
892 worktree
893 .as_local_mut()
894 .unwrap()
895 .copy_entry(entry_id, new_path, cx)
896 })
897 } else {
898 let client = self.client.clone();
899 let project_id = self.remote_id().unwrap();
900
901 Some(cx.spawn_weak(|_, mut cx| async move {
902 let response = client
903 .request(proto::CopyProjectEntry {
904 project_id,
905 entry_id: entry_id.to_proto(),
906 new_path: new_path.to_string_lossy().into(),
907 })
908 .await?;
909 let entry = response
910 .entry
911 .ok_or_else(|| anyhow!("missing entry in response"))?;
912 worktree
913 .update(&mut cx, |worktree, cx| {
914 worktree.as_remote_mut().unwrap().insert_entry(
915 entry,
916 response.worktree_scan_id as usize,
917 cx,
918 )
919 })
920 .await
921 }))
922 }
923 }
924
925 pub fn rename_entry(
926 &mut self,
927 entry_id: ProjectEntryId,
928 new_path: impl Into<Arc<Path>>,
929 cx: &mut ModelContext<Self>,
930 ) -> Option<Task<Result<Entry>>> {
931 let worktree = self.worktree_for_entry(entry_id, cx)?;
932 let new_path = new_path.into();
933 if self.is_local() {
934 worktree.update(cx, |worktree, cx| {
935 worktree
936 .as_local_mut()
937 .unwrap()
938 .rename_entry(entry_id, new_path, cx)
939 })
940 } else {
941 let client = self.client.clone();
942 let project_id = self.remote_id().unwrap();
943
944 Some(cx.spawn_weak(|_, mut cx| async move {
945 let response = client
946 .request(proto::RenameProjectEntry {
947 project_id,
948 entry_id: entry_id.to_proto(),
949 new_path: new_path.to_string_lossy().into(),
950 })
951 .await?;
952 let entry = response
953 .entry
954 .ok_or_else(|| anyhow!("missing entry in response"))?;
955 worktree
956 .update(&mut cx, |worktree, cx| {
957 worktree.as_remote_mut().unwrap().insert_entry(
958 entry,
959 response.worktree_scan_id as usize,
960 cx,
961 )
962 })
963 .await
964 }))
965 }
966 }
967
968 pub fn delete_entry(
969 &mut self,
970 entry_id: ProjectEntryId,
971 cx: &mut ModelContext<Self>,
972 ) -> Option<Task<Result<()>>> {
973 let worktree = self.worktree_for_entry(entry_id, cx)?;
974 if self.is_local() {
975 worktree.update(cx, |worktree, cx| {
976 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
977 })
978 } else {
979 let client = self.client.clone();
980 let project_id = self.remote_id().unwrap();
981 Some(cx.spawn_weak(|_, mut cx| async move {
982 let response = client
983 .request(proto::DeleteProjectEntry {
984 project_id,
985 entry_id: entry_id.to_proto(),
986 })
987 .await?;
988 worktree
989 .update(&mut cx, move |worktree, cx| {
990 worktree.as_remote_mut().unwrap().delete_entry(
991 entry_id,
992 response.worktree_scan_id as usize,
993 cx,
994 )
995 })
996 .await
997 }))
998 }
999 }
1000
1001 pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Result<()> {
1002 if self.client_state.is_some() {
1003 return Err(anyhow!("project was already shared"));
1004 }
1005 self.client_subscriptions.push(
1006 self.client
1007 .subscribe_to_entity(project_id)?
1008 .set_model(&cx.handle(), &mut cx.to_async()),
1009 );
1010
1011 for open_buffer in self.opened_buffers.values_mut() {
1012 match open_buffer {
1013 OpenBuffer::Strong(_) => {}
1014 OpenBuffer::Weak(buffer) => {
1015 if let Some(buffer) = buffer.upgrade(cx) {
1016 *open_buffer = OpenBuffer::Strong(buffer);
1017 }
1018 }
1019 OpenBuffer::Operations(_) => unreachable!(),
1020 }
1021 }
1022
1023 for worktree_handle in self.worktrees.iter_mut() {
1024 match worktree_handle {
1025 WorktreeHandle::Strong(_) => {}
1026 WorktreeHandle::Weak(worktree) => {
1027 if let Some(worktree) = worktree.upgrade(cx) {
1028 *worktree_handle = WorktreeHandle::Strong(worktree);
1029 }
1030 }
1031 }
1032 }
1033
1034 for (server_id, status) in &self.language_server_statuses {
1035 self.client
1036 .send(proto::StartLanguageServer {
1037 project_id,
1038 server: Some(proto::LanguageServer {
1039 id: server_id.0 as u64,
1040 name: status.name.clone(),
1041 }),
1042 })
1043 .log_err();
1044 }
1045
1046 let (updates_tx, mut updates_rx) = mpsc::unbounded();
1047 let client = self.client.clone();
1048 self.client_state = Some(ProjectClientState::Local {
1049 remote_id: project_id,
1050 updates_tx,
1051 _send_updates: cx.spawn_weak(move |this, mut cx| async move {
1052 while let Some(update) = updates_rx.next().await {
1053 let Some(this) = this.upgrade(&cx) else { break };
1054
1055 match update {
1056 LocalProjectUpdate::WorktreesChanged => {
1057 let worktrees = this
1058 .read_with(&cx, |this, cx| this.worktrees(cx).collect::<Vec<_>>());
1059 let update_project = this
1060 .read_with(&cx, |this, cx| {
1061 this.client.request(proto::UpdateProject {
1062 project_id,
1063 worktrees: this.worktree_metadata_protos(cx),
1064 })
1065 })
1066 .await;
1067 if update_project.is_ok() {
1068 for worktree in worktrees {
1069 worktree.update(&mut cx, |worktree, cx| {
1070 let worktree = worktree.as_local_mut().unwrap();
1071 worktree.share(project_id, cx).detach_and_log_err(cx)
1072 });
1073 }
1074 }
1075 }
1076 LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id } => {
1077 let buffer = this.update(&mut cx, |this, _| {
1078 let buffer = this.opened_buffers.get(&buffer_id).unwrap();
1079 let shared_buffers =
1080 this.shared_buffers.entry(peer_id).or_default();
1081 if shared_buffers.insert(buffer_id) {
1082 if let OpenBuffer::Strong(buffer) = buffer {
1083 Some(buffer.clone())
1084 } else {
1085 None
1086 }
1087 } else {
1088 None
1089 }
1090 });
1091
1092 let Some(buffer) = buffer else { continue };
1093 let operations =
1094 buffer.read_with(&cx, |b, cx| b.serialize_ops(None, cx));
1095 let operations = operations.await;
1096 let state = buffer.read_with(&cx, |buffer, _| buffer.to_proto());
1097
1098 let initial_state = proto::CreateBufferForPeer {
1099 project_id,
1100 peer_id: Some(peer_id),
1101 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
1102 };
1103 if client.send(initial_state).log_err().is_some() {
1104 let client = client.clone();
1105 cx.background()
1106 .spawn(async move {
1107 let mut chunks = split_operations(operations).peekable();
1108 while let Some(chunk) = chunks.next() {
1109 let is_last = chunks.peek().is_none();
1110 client.send(proto::CreateBufferForPeer {
1111 project_id,
1112 peer_id: Some(peer_id),
1113 variant: Some(
1114 proto::create_buffer_for_peer::Variant::Chunk(
1115 proto::BufferChunk {
1116 buffer_id,
1117 operations: chunk,
1118 is_last,
1119 },
1120 ),
1121 ),
1122 })?;
1123 }
1124 anyhow::Ok(())
1125 })
1126 .await
1127 .log_err();
1128 }
1129 }
1130 }
1131 }
1132 }),
1133 });
1134
1135 self.metadata_changed(cx);
1136 cx.emit(Event::RemoteIdChanged(Some(project_id)));
1137 cx.notify();
1138 Ok(())
1139 }
1140
1141 pub fn reshared(
1142 &mut self,
1143 message: proto::ResharedProject,
1144 cx: &mut ModelContext<Self>,
1145 ) -> Result<()> {
1146 self.shared_buffers.clear();
1147 self.set_collaborators_from_proto(message.collaborators, cx)?;
1148 self.metadata_changed(cx);
1149 Ok(())
1150 }
1151
1152 pub fn rejoined(
1153 &mut self,
1154 message: proto::RejoinedProject,
1155 message_id: u32,
1156 cx: &mut ModelContext<Self>,
1157 ) -> Result<()> {
1158 self.join_project_response_message_id = message_id;
1159 self.set_worktrees_from_proto(message.worktrees, cx)?;
1160 self.set_collaborators_from_proto(message.collaborators, cx)?;
1161 self.language_server_statuses = message
1162 .language_servers
1163 .into_iter()
1164 .map(|server| {
1165 (
1166 LanguageServerId(server.id as usize),
1167 LanguageServerStatus {
1168 name: server.name,
1169 pending_work: Default::default(),
1170 has_pending_diagnostic_updates: false,
1171 progress_tokens: Default::default(),
1172 },
1173 )
1174 })
1175 .collect();
1176 self.buffer_ordered_messages_tx
1177 .unbounded_send(BufferOrderedMessage::Resync)
1178 .unwrap();
1179 cx.notify();
1180 Ok(())
1181 }
1182
1183 pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1184 self.unshare_internal(cx)?;
1185 self.metadata_changed(cx);
1186 cx.notify();
1187 Ok(())
1188 }
1189
1190 fn unshare_internal(&mut self, cx: &mut AppContext) -> Result<()> {
1191 if self.is_remote() {
1192 return Err(anyhow!("attempted to unshare a remote project"));
1193 }
1194
1195 if let Some(ProjectClientState::Local { remote_id, .. }) = self.client_state.take() {
1196 self.collaborators.clear();
1197 self.shared_buffers.clear();
1198 self.client_subscriptions.clear();
1199
1200 for worktree_handle in self.worktrees.iter_mut() {
1201 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1202 let is_visible = worktree.update(cx, |worktree, _| {
1203 worktree.as_local_mut().unwrap().unshare();
1204 worktree.is_visible()
1205 });
1206 if !is_visible {
1207 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1208 }
1209 }
1210 }
1211
1212 for open_buffer in self.opened_buffers.values_mut() {
1213 // Wake up any tasks waiting for peers' edits to this buffer.
1214 if let Some(buffer) = open_buffer.upgrade(cx) {
1215 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1216 }
1217
1218 if let OpenBuffer::Strong(buffer) = open_buffer {
1219 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1220 }
1221 }
1222
1223 self.client.send(proto::UnshareProject {
1224 project_id: remote_id,
1225 })?;
1226
1227 Ok(())
1228 } else {
1229 Err(anyhow!("attempted to unshare an unshared project"))
1230 }
1231 }
1232
1233 pub fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1234 self.disconnected_from_host_internal(cx);
1235 cx.emit(Event::DisconnectedFromHost);
1236 cx.notify();
1237 }
1238
1239 fn disconnected_from_host_internal(&mut self, cx: &mut AppContext) {
1240 if let Some(ProjectClientState::Remote {
1241 sharing_has_stopped,
1242 ..
1243 }) = &mut self.client_state
1244 {
1245 *sharing_has_stopped = true;
1246
1247 self.collaborators.clear();
1248
1249 for worktree in &self.worktrees {
1250 if let Some(worktree) = worktree.upgrade(cx) {
1251 worktree.update(cx, |worktree, _| {
1252 if let Some(worktree) = worktree.as_remote_mut() {
1253 worktree.disconnected_from_host();
1254 }
1255 });
1256 }
1257 }
1258
1259 for open_buffer in self.opened_buffers.values_mut() {
1260 // Wake up any tasks waiting for peers' edits to this buffer.
1261 if let Some(buffer) = open_buffer.upgrade(cx) {
1262 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1263 }
1264
1265 if let OpenBuffer::Strong(buffer) = open_buffer {
1266 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1267 }
1268 }
1269
1270 // Wake up all futures currently waiting on a buffer to get opened,
1271 // to give them a chance to fail now that we've disconnected.
1272 *self.opened_buffer.0.borrow_mut() = ();
1273 }
1274 }
1275
1276 pub fn close(&mut self, cx: &mut ModelContext<Self>) {
1277 cx.emit(Event::Closed);
1278 }
1279
1280 pub fn is_read_only(&self) -> bool {
1281 match &self.client_state {
1282 Some(ProjectClientState::Remote {
1283 sharing_has_stopped,
1284 ..
1285 }) => *sharing_has_stopped,
1286 _ => false,
1287 }
1288 }
1289
1290 pub fn is_local(&self) -> bool {
1291 match &self.client_state {
1292 Some(ProjectClientState::Remote { .. }) => false,
1293 _ => true,
1294 }
1295 }
1296
1297 pub fn is_remote(&self) -> bool {
1298 !self.is_local()
1299 }
1300
1301 pub fn create_buffer(
1302 &mut self,
1303 text: &str,
1304 language: Option<Arc<Language>>,
1305 cx: &mut ModelContext<Self>,
1306 ) -> Result<ModelHandle<Buffer>> {
1307 if self.is_remote() {
1308 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1309 }
1310
1311 let buffer = cx.add_model(|cx| {
1312 Buffer::new(self.replica_id(), text, cx)
1313 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1314 });
1315 self.register_buffer(&buffer, cx)?;
1316 Ok(buffer)
1317 }
1318
1319 pub fn open_path(
1320 &mut self,
1321 path: impl Into<ProjectPath>,
1322 cx: &mut ModelContext<Self>,
1323 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1324 let task = self.open_buffer(path, cx);
1325 cx.spawn_weak(|_, cx| async move {
1326 let buffer = task.await?;
1327 let project_entry_id = buffer
1328 .read_with(&cx, |buffer, cx| {
1329 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1330 })
1331 .ok_or_else(|| anyhow!("no project entry"))?;
1332
1333 let buffer: &AnyModelHandle = &buffer;
1334 Ok((project_entry_id, buffer.clone()))
1335 })
1336 }
1337
1338 pub fn open_local_buffer(
1339 &mut self,
1340 abs_path: impl AsRef<Path>,
1341 cx: &mut ModelContext<Self>,
1342 ) -> Task<Result<ModelHandle<Buffer>>> {
1343 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1344 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1345 } else {
1346 Task::ready(Err(anyhow!("no such path")))
1347 }
1348 }
1349
1350 pub fn open_buffer(
1351 &mut self,
1352 path: impl Into<ProjectPath>,
1353 cx: &mut ModelContext<Self>,
1354 ) -> Task<Result<ModelHandle<Buffer>>> {
1355 let project_path = path.into();
1356 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1357 worktree
1358 } else {
1359 return Task::ready(Err(anyhow!("no such worktree")));
1360 };
1361
1362 // If there is already a buffer for the given path, then return it.
1363 let existing_buffer = self.get_open_buffer(&project_path, cx);
1364 if let Some(existing_buffer) = existing_buffer {
1365 return Task::ready(Ok(existing_buffer));
1366 }
1367
1368 let mut loading_watch = match self.loading_buffers_by_path.entry(project_path.clone()) {
1369 // If the given path is already being loaded, then wait for that existing
1370 // task to complete and return the same buffer.
1371 hash_map::Entry::Occupied(e) => e.get().clone(),
1372
1373 // Otherwise, record the fact that this path is now being loaded.
1374 hash_map::Entry::Vacant(entry) => {
1375 let (mut tx, rx) = postage::watch::channel();
1376 entry.insert(rx.clone());
1377
1378 let load_buffer = if worktree.read(cx).is_local() {
1379 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1380 } else {
1381 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1382 };
1383
1384 cx.spawn(move |this, mut cx| async move {
1385 let load_result = load_buffer.await;
1386 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1387 // Record the fact that the buffer is no longer loading.
1388 this.loading_buffers_by_path.remove(&project_path);
1389 let buffer = load_result.map_err(Arc::new)?;
1390 Ok(buffer)
1391 }));
1392 })
1393 .detach();
1394 rx
1395 }
1396 };
1397
1398 cx.foreground().spawn(async move {
1399 loop {
1400 if let Some(result) = loading_watch.borrow().as_ref() {
1401 match result {
1402 Ok(buffer) => return Ok(buffer.clone()),
1403 Err(error) => return Err(anyhow!("{}", error)),
1404 }
1405 }
1406 loading_watch.next().await;
1407 }
1408 })
1409 }
1410
1411 fn open_local_buffer_internal(
1412 &mut self,
1413 path: &Arc<Path>,
1414 worktree: &ModelHandle<Worktree>,
1415 cx: &mut ModelContext<Self>,
1416 ) -> Task<Result<ModelHandle<Buffer>>> {
1417 let load_buffer = worktree.update(cx, |worktree, cx| {
1418 let worktree = worktree.as_local_mut().unwrap();
1419 worktree.load_buffer(path, cx)
1420 });
1421 cx.spawn(|this, mut cx| async move {
1422 let buffer = load_buffer.await?;
1423 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1424 Ok(buffer)
1425 })
1426 }
1427
1428 fn open_remote_buffer_internal(
1429 &mut self,
1430 path: &Arc<Path>,
1431 worktree: &ModelHandle<Worktree>,
1432 cx: &mut ModelContext<Self>,
1433 ) -> Task<Result<ModelHandle<Buffer>>> {
1434 let rpc = self.client.clone();
1435 let project_id = self.remote_id().unwrap();
1436 let remote_worktree_id = worktree.read(cx).id();
1437 let path = path.clone();
1438 let path_string = path.to_string_lossy().to_string();
1439 cx.spawn(|this, mut cx| async move {
1440 let response = rpc
1441 .request(proto::OpenBufferByPath {
1442 project_id,
1443 worktree_id: remote_worktree_id.to_proto(),
1444 path: path_string,
1445 })
1446 .await?;
1447 this.update(&mut cx, |this, cx| {
1448 this.wait_for_remote_buffer(response.buffer_id, cx)
1449 })
1450 .await
1451 })
1452 }
1453
1454 /// LanguageServerName is owned, because it is inserted into a map
1455 fn open_local_buffer_via_lsp(
1456 &mut self,
1457 abs_path: lsp::Url,
1458 language_server_id: LanguageServerId,
1459 language_server_name: LanguageServerName,
1460 cx: &mut ModelContext<Self>,
1461 ) -> Task<Result<ModelHandle<Buffer>>> {
1462 cx.spawn(|this, mut cx| async move {
1463 let abs_path = abs_path
1464 .to_file_path()
1465 .map_err(|_| anyhow!("can't convert URI to path"))?;
1466 let (worktree, relative_path) = if let Some(result) =
1467 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1468 {
1469 result
1470 } else {
1471 let worktree = this
1472 .update(&mut cx, |this, cx| {
1473 this.create_local_worktree(&abs_path, false, cx)
1474 })
1475 .await?;
1476 this.update(&mut cx, |this, cx| {
1477 this.language_server_ids.insert(
1478 (worktree.read(cx).id(), language_server_name),
1479 language_server_id,
1480 );
1481 });
1482 (worktree, PathBuf::new())
1483 };
1484
1485 let project_path = ProjectPath {
1486 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1487 path: relative_path.into(),
1488 };
1489 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1490 .await
1491 })
1492 }
1493
1494 pub fn open_buffer_by_id(
1495 &mut self,
1496 id: u64,
1497 cx: &mut ModelContext<Self>,
1498 ) -> Task<Result<ModelHandle<Buffer>>> {
1499 if let Some(buffer) = self.buffer_for_id(id, cx) {
1500 Task::ready(Ok(buffer))
1501 } else if self.is_local() {
1502 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1503 } else if let Some(project_id) = self.remote_id() {
1504 let request = self
1505 .client
1506 .request(proto::OpenBufferById { project_id, id });
1507 cx.spawn(|this, mut cx| async move {
1508 let buffer_id = request.await?.buffer_id;
1509 this.update(&mut cx, |this, cx| {
1510 this.wait_for_remote_buffer(buffer_id, cx)
1511 })
1512 .await
1513 })
1514 } else {
1515 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1516 }
1517 }
1518
1519 pub fn save_buffers(
1520 &self,
1521 buffers: HashSet<ModelHandle<Buffer>>,
1522 cx: &mut ModelContext<Self>,
1523 ) -> Task<Result<()>> {
1524 cx.spawn(|this, mut cx| async move {
1525 let save_tasks = buffers
1526 .into_iter()
1527 .map(|buffer| this.update(&mut cx, |this, cx| this.save_buffer(buffer, cx)));
1528 try_join_all(save_tasks).await?;
1529 Ok(())
1530 })
1531 }
1532
1533 pub fn save_buffer(
1534 &self,
1535 buffer: ModelHandle<Buffer>,
1536 cx: &mut ModelContext<Self>,
1537 ) -> Task<Result<(clock::Global, RopeFingerprint, SystemTime)>> {
1538 let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1539 return Task::ready(Err(anyhow!("buffer doesn't have a file")));
1540 };
1541 let worktree = file.worktree.clone();
1542 let path = file.path.clone();
1543 worktree.update(cx, |worktree, cx| match worktree {
1544 Worktree::Local(worktree) => worktree.save_buffer(buffer, path, false, cx),
1545 Worktree::Remote(worktree) => worktree.save_buffer(buffer, cx),
1546 })
1547 }
1548
1549 pub fn save_buffer_as(
1550 &mut self,
1551 buffer: ModelHandle<Buffer>,
1552 abs_path: PathBuf,
1553 cx: &mut ModelContext<Self>,
1554 ) -> Task<Result<()>> {
1555 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1556 let old_file = File::from_dyn(buffer.read(cx).file())
1557 .filter(|f| f.is_local())
1558 .cloned();
1559 cx.spawn(|this, mut cx| async move {
1560 if let Some(old_file) = &old_file {
1561 this.update(&mut cx, |this, cx| {
1562 this.unregister_buffer_from_language_servers(&buffer, old_file, cx);
1563 });
1564 }
1565 let (worktree, path) = worktree_task.await?;
1566 worktree
1567 .update(&mut cx, |worktree, cx| match worktree {
1568 Worktree::Local(worktree) => {
1569 worktree.save_buffer(buffer.clone(), path.into(), true, cx)
1570 }
1571 Worktree::Remote(_) => panic!("cannot remote buffers as new files"),
1572 })
1573 .await?;
1574 this.update(&mut cx, |this, cx| {
1575 this.detect_language_for_buffer(&buffer, cx);
1576 this.register_buffer_with_language_servers(&buffer, cx);
1577 });
1578 Ok(())
1579 })
1580 }
1581
1582 pub fn get_open_buffer(
1583 &mut self,
1584 path: &ProjectPath,
1585 cx: &mut ModelContext<Self>,
1586 ) -> Option<ModelHandle<Buffer>> {
1587 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1588 self.opened_buffers.values().find_map(|buffer| {
1589 let buffer = buffer.upgrade(cx)?;
1590 let file = File::from_dyn(buffer.read(cx).file())?;
1591 if file.worktree == worktree && file.path() == &path.path {
1592 Some(buffer)
1593 } else {
1594 None
1595 }
1596 })
1597 }
1598
1599 fn register_buffer(
1600 &mut self,
1601 buffer: &ModelHandle<Buffer>,
1602 cx: &mut ModelContext<Self>,
1603 ) -> Result<()> {
1604 buffer.update(cx, |buffer, _| {
1605 buffer.set_language_registry(self.languages.clone())
1606 });
1607
1608 let remote_id = buffer.read(cx).remote_id();
1609 let is_remote = self.is_remote();
1610 let open_buffer = if is_remote || self.is_shared() {
1611 OpenBuffer::Strong(buffer.clone())
1612 } else {
1613 OpenBuffer::Weak(buffer.downgrade())
1614 };
1615
1616 match self.opened_buffers.entry(remote_id) {
1617 hash_map::Entry::Vacant(entry) => {
1618 entry.insert(open_buffer);
1619 }
1620 hash_map::Entry::Occupied(mut entry) => {
1621 if let OpenBuffer::Operations(operations) = entry.get_mut() {
1622 buffer.update(cx, |b, cx| b.apply_ops(operations.drain(..), cx))?;
1623 } else if entry.get().upgrade(cx).is_some() {
1624 if is_remote {
1625 return Ok(());
1626 } else {
1627 debug_panic!("buffer {} was already registered", remote_id);
1628 Err(anyhow!("buffer {} was already registered", remote_id))?;
1629 }
1630 }
1631 entry.insert(open_buffer);
1632 }
1633 }
1634 cx.subscribe(buffer, |this, buffer, event, cx| {
1635 this.on_buffer_event(buffer, event, cx);
1636 })
1637 .detach();
1638
1639 self.detect_language_for_buffer(buffer, cx);
1640 self.register_buffer_with_language_servers(buffer, cx);
1641 self.register_buffer_with_copilot(buffer, cx);
1642 cx.observe_release(buffer, |this, buffer, cx| {
1643 if let Some(file) = File::from_dyn(buffer.file()) {
1644 if file.is_local() {
1645 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1646 for server in this.language_servers_for_buffer(buffer, cx) {
1647 server
1648 .1
1649 .notify::<lsp::notification::DidCloseTextDocument>(
1650 lsp::DidCloseTextDocumentParams {
1651 text_document: lsp::TextDocumentIdentifier::new(uri.clone()),
1652 },
1653 )
1654 .log_err();
1655 }
1656 }
1657 }
1658 })
1659 .detach();
1660
1661 *self.opened_buffer.0.borrow_mut() = ();
1662 Ok(())
1663 }
1664
1665 fn register_buffer_with_language_servers(
1666 &mut self,
1667 buffer_handle: &ModelHandle<Buffer>,
1668 cx: &mut ModelContext<Self>,
1669 ) {
1670 let buffer = buffer_handle.read(cx);
1671 let buffer_id = buffer.remote_id();
1672
1673 if let Some(file) = File::from_dyn(buffer.file()) {
1674 if !file.is_local() {
1675 return;
1676 }
1677
1678 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1679 let initial_snapshot = buffer.text_snapshot();
1680 let language = buffer.language().cloned();
1681 let worktree_id = file.worktree_id(cx);
1682
1683 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1684 for (server_id, diagnostics) in local_worktree.diagnostics_for_path(file.path()) {
1685 self.update_buffer_diagnostics(buffer_handle, server_id, None, diagnostics, cx)
1686 .log_err();
1687 }
1688 }
1689
1690 if let Some(language) = language {
1691 for adapter in language.lsp_adapters() {
1692 let language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1693 let server = self
1694 .language_server_ids
1695 .get(&(worktree_id, adapter.name.clone()))
1696 .and_then(|id| self.language_servers.get(id))
1697 .and_then(|server_state| {
1698 if let LanguageServerState::Running { server, .. } = server_state {
1699 Some(server.clone())
1700 } else {
1701 None
1702 }
1703 });
1704 let server = match server {
1705 Some(server) => server,
1706 None => continue,
1707 };
1708
1709 server
1710 .notify::<lsp::notification::DidOpenTextDocument>(
1711 lsp::DidOpenTextDocumentParams {
1712 text_document: lsp::TextDocumentItem::new(
1713 uri.clone(),
1714 language_id.unwrap_or_default(),
1715 0,
1716 initial_snapshot.text(),
1717 ),
1718 },
1719 )
1720 .log_err();
1721
1722 buffer_handle.update(cx, |buffer, cx| {
1723 buffer.set_completion_triggers(
1724 server
1725 .capabilities()
1726 .completion_provider
1727 .as_ref()
1728 .and_then(|provider| provider.trigger_characters.clone())
1729 .unwrap_or_default(),
1730 cx,
1731 );
1732 });
1733
1734 let snapshot = LspBufferSnapshot {
1735 version: 0,
1736 snapshot: initial_snapshot.clone(),
1737 };
1738 self.buffer_snapshots
1739 .entry(buffer_id)
1740 .or_default()
1741 .insert(server.server_id(), vec![snapshot]);
1742 }
1743 }
1744 }
1745 }
1746
1747 fn unregister_buffer_from_language_servers(
1748 &mut self,
1749 buffer: &ModelHandle<Buffer>,
1750 old_file: &File,
1751 cx: &mut ModelContext<Self>,
1752 ) {
1753 let old_path = match old_file.as_local() {
1754 Some(local) => local.abs_path(cx),
1755 None => return,
1756 };
1757
1758 buffer.update(cx, |buffer, cx| {
1759 let worktree_id = old_file.worktree_id(cx);
1760 let ids = &self.language_server_ids;
1761
1762 let language = buffer.language().cloned();
1763 let adapters = language.iter().flat_map(|language| language.lsp_adapters());
1764 for &server_id in adapters.flat_map(|a| ids.get(&(worktree_id, a.name.clone()))) {
1765 buffer.update_diagnostics(server_id, Default::default(), cx);
1766 }
1767
1768 self.buffer_snapshots.remove(&buffer.remote_id());
1769 let file_url = lsp::Url::from_file_path(old_path).unwrap();
1770 for (_, language_server) in self.language_servers_for_buffer(buffer, cx) {
1771 language_server
1772 .notify::<lsp::notification::DidCloseTextDocument>(
1773 lsp::DidCloseTextDocumentParams {
1774 text_document: lsp::TextDocumentIdentifier::new(file_url.clone()),
1775 },
1776 )
1777 .log_err();
1778 }
1779 });
1780 }
1781
1782 fn register_buffer_with_copilot(
1783 &self,
1784 buffer_handle: &ModelHandle<Buffer>,
1785 cx: &mut ModelContext<Self>,
1786 ) {
1787 if let Some(copilot) = Copilot::global(cx) {
1788 copilot.update(cx, |copilot, cx| copilot.register_buffer(buffer_handle, cx));
1789 }
1790 }
1791
1792 async fn send_buffer_ordered_messages(
1793 this: WeakModelHandle<Self>,
1794 rx: UnboundedReceiver<BufferOrderedMessage>,
1795 mut cx: AsyncAppContext,
1796 ) -> Option<()> {
1797 const MAX_BATCH_SIZE: usize = 128;
1798
1799 let mut operations_by_buffer_id = HashMap::default();
1800 async fn flush_operations(
1801 this: &ModelHandle<Project>,
1802 operations_by_buffer_id: &mut HashMap<u64, Vec<proto::Operation>>,
1803 needs_resync_with_host: &mut bool,
1804 is_local: bool,
1805 cx: &AsyncAppContext,
1806 ) {
1807 for (buffer_id, operations) in operations_by_buffer_id.drain() {
1808 let request = this.read_with(cx, |this, _| {
1809 let project_id = this.remote_id()?;
1810 Some(this.client.request(proto::UpdateBuffer {
1811 buffer_id,
1812 project_id,
1813 operations,
1814 }))
1815 });
1816 if let Some(request) = request {
1817 if request.await.is_err() && !is_local {
1818 *needs_resync_with_host = true;
1819 break;
1820 }
1821 }
1822 }
1823 }
1824
1825 let mut needs_resync_with_host = false;
1826 let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
1827
1828 while let Some(changes) = changes.next().await {
1829 let this = this.upgrade(&mut cx)?;
1830 let is_local = this.read_with(&cx, |this, _| this.is_local());
1831
1832 for change in changes {
1833 match change {
1834 BufferOrderedMessage::Operation {
1835 buffer_id,
1836 operation,
1837 } => {
1838 if needs_resync_with_host {
1839 continue;
1840 }
1841
1842 operations_by_buffer_id
1843 .entry(buffer_id)
1844 .or_insert(Vec::new())
1845 .push(operation);
1846 }
1847
1848 BufferOrderedMessage::Resync => {
1849 operations_by_buffer_id.clear();
1850 if this
1851 .update(&mut cx, |this, cx| this.synchronize_remote_buffers(cx))
1852 .await
1853 .is_ok()
1854 {
1855 needs_resync_with_host = false;
1856 }
1857 }
1858
1859 BufferOrderedMessage::LanguageServerUpdate {
1860 language_server_id,
1861 message,
1862 } => {
1863 flush_operations(
1864 &this,
1865 &mut operations_by_buffer_id,
1866 &mut needs_resync_with_host,
1867 is_local,
1868 &cx,
1869 )
1870 .await;
1871
1872 this.read_with(&cx, |this, _| {
1873 if let Some(project_id) = this.remote_id() {
1874 this.client
1875 .send(proto::UpdateLanguageServer {
1876 project_id,
1877 language_server_id: language_server_id.0 as u64,
1878 variant: Some(message),
1879 })
1880 .log_err();
1881 }
1882 });
1883 }
1884 }
1885 }
1886
1887 flush_operations(
1888 &this,
1889 &mut operations_by_buffer_id,
1890 &mut needs_resync_with_host,
1891 is_local,
1892 &cx,
1893 )
1894 .await;
1895 }
1896
1897 None
1898 }
1899
1900 fn on_buffer_event(
1901 &mut self,
1902 buffer: ModelHandle<Buffer>,
1903 event: &BufferEvent,
1904 cx: &mut ModelContext<Self>,
1905 ) -> Option<()> {
1906 match event {
1907 BufferEvent::Operation(operation) => {
1908 self.buffer_ordered_messages_tx
1909 .unbounded_send(BufferOrderedMessage::Operation {
1910 buffer_id: buffer.read(cx).remote_id(),
1911 operation: language::proto::serialize_operation(operation),
1912 })
1913 .ok();
1914 }
1915
1916 BufferEvent::Edited { .. } => {
1917 let buffer = buffer.read(cx);
1918 let file = File::from_dyn(buffer.file())?;
1919 let abs_path = file.as_local()?.abs_path(cx);
1920 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1921 let next_snapshot = buffer.text_snapshot();
1922
1923 let language_servers: Vec<_> = self
1924 .language_servers_for_buffer(buffer, cx)
1925 .map(|i| i.1.clone())
1926 .collect();
1927
1928 for language_server in language_servers {
1929 let language_server = language_server.clone();
1930
1931 let buffer_snapshots = self
1932 .buffer_snapshots
1933 .get_mut(&buffer.remote_id())
1934 .and_then(|m| m.get_mut(&language_server.server_id()))?;
1935 let previous_snapshot = buffer_snapshots.last()?;
1936 let next_version = previous_snapshot.version + 1;
1937
1938 let content_changes = buffer
1939 .edits_since::<(PointUtf16, usize)>(previous_snapshot.snapshot.version())
1940 .map(|edit| {
1941 let edit_start = edit.new.start.0;
1942 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
1943 let new_text = next_snapshot
1944 .text_for_range(edit.new.start.1..edit.new.end.1)
1945 .collect();
1946 lsp::TextDocumentContentChangeEvent {
1947 range: Some(lsp::Range::new(
1948 point_to_lsp(edit_start),
1949 point_to_lsp(edit_end),
1950 )),
1951 range_length: None,
1952 text: new_text,
1953 }
1954 })
1955 .collect();
1956
1957 buffer_snapshots.push(LspBufferSnapshot {
1958 version: next_version,
1959 snapshot: next_snapshot.clone(),
1960 });
1961
1962 language_server
1963 .notify::<lsp::notification::DidChangeTextDocument>(
1964 lsp::DidChangeTextDocumentParams {
1965 text_document: lsp::VersionedTextDocumentIdentifier::new(
1966 uri.clone(),
1967 next_version,
1968 ),
1969 content_changes,
1970 },
1971 )
1972 .log_err();
1973 }
1974 }
1975
1976 BufferEvent::Saved => {
1977 let file = File::from_dyn(buffer.read(cx).file())?;
1978 let worktree_id = file.worktree_id(cx);
1979 let abs_path = file.as_local()?.abs_path(cx);
1980 let text_document = lsp::TextDocumentIdentifier {
1981 uri: lsp::Url::from_file_path(abs_path).unwrap(),
1982 };
1983
1984 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
1985 server
1986 .notify::<lsp::notification::DidSaveTextDocument>(
1987 lsp::DidSaveTextDocumentParams {
1988 text_document: text_document.clone(),
1989 text: None,
1990 },
1991 )
1992 .log_err();
1993 }
1994
1995 let language_server_ids = self.language_server_ids_for_buffer(buffer.read(cx), cx);
1996 for language_server_id in language_server_ids {
1997 if let Some(LanguageServerState::Running {
1998 adapter,
1999 simulate_disk_based_diagnostics_completion,
2000 ..
2001 }) = self.language_servers.get_mut(&language_server_id)
2002 {
2003 // After saving a buffer using a language server that doesn't provide
2004 // a disk-based progress token, kick off a timer that will reset every
2005 // time the buffer is saved. If the timer eventually fires, simulate
2006 // disk-based diagnostics being finished so that other pieces of UI
2007 // (e.g., project diagnostics view, diagnostic status bar) can update.
2008 // We don't emit an event right away because the language server might take
2009 // some time to publish diagnostics.
2010 if adapter.disk_based_diagnostics_progress_token.is_none() {
2011 const DISK_BASED_DIAGNOSTICS_DEBOUNCE: Duration =
2012 Duration::from_secs(1);
2013
2014 let task = cx.spawn_weak(|this, mut cx| async move {
2015 cx.background().timer(DISK_BASED_DIAGNOSTICS_DEBOUNCE).await;
2016 if let Some(this) = this.upgrade(&cx) {
2017 this.update(&mut cx, |this, cx| {
2018 this.disk_based_diagnostics_finished(
2019 language_server_id,
2020 cx,
2021 );
2022 this.buffer_ordered_messages_tx
2023 .unbounded_send(
2024 BufferOrderedMessage::LanguageServerUpdate {
2025 language_server_id,
2026 message:proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(Default::default())
2027 },
2028 )
2029 .ok();
2030 });
2031 }
2032 });
2033 *simulate_disk_based_diagnostics_completion = Some(task);
2034 }
2035 }
2036 }
2037 }
2038
2039 _ => {}
2040 }
2041
2042 None
2043 }
2044
2045 fn language_servers_for_worktree(
2046 &self,
2047 worktree_id: WorktreeId,
2048 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
2049 self.language_server_ids
2050 .iter()
2051 .filter_map(move |((language_server_worktree_id, _), id)| {
2052 if *language_server_worktree_id == worktree_id {
2053 if let Some(LanguageServerState::Running {
2054 adapter,
2055 language,
2056 server,
2057 ..
2058 }) = self.language_servers.get(id)
2059 {
2060 return Some((adapter, language, server));
2061 }
2062 }
2063 None
2064 })
2065 }
2066
2067 fn maintain_buffer_languages(
2068 languages: &LanguageRegistry,
2069 cx: &mut ModelContext<Project>,
2070 ) -> Task<()> {
2071 let mut subscription = languages.subscribe();
2072 cx.spawn_weak(|project, mut cx| async move {
2073 while let Some(()) = subscription.next().await {
2074 if let Some(project) = project.upgrade(&cx) {
2075 project.update(&mut cx, |project, cx| {
2076 let mut plain_text_buffers = Vec::new();
2077 let mut buffers_with_unknown_injections = Vec::new();
2078 for buffer in project.opened_buffers.values() {
2079 if let Some(handle) = buffer.upgrade(cx) {
2080 let buffer = &handle.read(cx);
2081 if buffer.language().is_none()
2082 || buffer.language() == Some(&*language::PLAIN_TEXT)
2083 {
2084 plain_text_buffers.push(handle);
2085 } else if buffer.contains_unknown_injections() {
2086 buffers_with_unknown_injections.push(handle);
2087 }
2088 }
2089 }
2090
2091 for buffer in plain_text_buffers {
2092 project.detect_language_for_buffer(&buffer, cx);
2093 project.register_buffer_with_language_servers(&buffer, cx);
2094 }
2095
2096 for buffer in buffers_with_unknown_injections {
2097 buffer.update(cx, |buffer, cx| buffer.reparse(cx));
2098 }
2099 });
2100 }
2101 }
2102 })
2103 }
2104
2105 fn maintain_workspace_config(
2106 languages: Arc<LanguageRegistry>,
2107 cx: &mut ModelContext<Project>,
2108 ) -> Task<()> {
2109 let (mut settings_changed_tx, mut settings_changed_rx) = watch::channel();
2110 let _ = postage::stream::Stream::try_recv(&mut settings_changed_rx);
2111
2112 let settings_observation = cx.observe_global::<Settings, _>(move |_, _| {
2113 *settings_changed_tx.borrow_mut() = ();
2114 });
2115 cx.spawn_weak(|this, mut cx| async move {
2116 while let Some(_) = settings_changed_rx.next().await {
2117 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2118 if let Some(this) = this.upgrade(&cx) {
2119 this.read_with(&cx, |this, _| {
2120 for server_state in this.language_servers.values() {
2121 if let LanguageServerState::Running { server, .. } = server_state {
2122 server
2123 .notify::<lsp::notification::DidChangeConfiguration>(
2124 lsp::DidChangeConfigurationParams {
2125 settings: workspace_config.clone(),
2126 },
2127 )
2128 .ok();
2129 }
2130 }
2131 })
2132 } else {
2133 break;
2134 }
2135 }
2136
2137 drop(settings_observation);
2138 })
2139 }
2140
2141 fn detect_language_for_buffer(
2142 &mut self,
2143 buffer_handle: &ModelHandle<Buffer>,
2144 cx: &mut ModelContext<Self>,
2145 ) -> Option<()> {
2146 // If the buffer has a language, set it and start the language server if we haven't already.
2147 let buffer = buffer_handle.read(cx);
2148 let full_path = buffer.file()?.full_path(cx);
2149 let content = buffer.as_rope();
2150 let new_language = self
2151 .languages
2152 .language_for_file(&full_path, Some(content))
2153 .now_or_never()?
2154 .ok()?;
2155 self.set_language_for_buffer(buffer_handle, new_language, cx);
2156 None
2157 }
2158
2159 pub fn set_language_for_buffer(
2160 &mut self,
2161 buffer: &ModelHandle<Buffer>,
2162 new_language: Arc<Language>,
2163 cx: &mut ModelContext<Self>,
2164 ) {
2165 buffer.update(cx, |buffer, cx| {
2166 if buffer.language().map_or(true, |old_language| {
2167 !Arc::ptr_eq(old_language, &new_language)
2168 }) {
2169 buffer.set_language(Some(new_language.clone()), cx);
2170 }
2171 });
2172
2173 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
2174 if let Some(worktree) = file.worktree.read(cx).as_local() {
2175 let worktree_id = worktree.id();
2176 let worktree_abs_path = worktree.abs_path().clone();
2177 self.start_language_servers(worktree_id, worktree_abs_path, new_language, cx);
2178 }
2179 }
2180 }
2181
2182 fn start_language_servers(
2183 &mut self,
2184 worktree_id: WorktreeId,
2185 worktree_path: Arc<Path>,
2186 language: Arc<Language>,
2187 cx: &mut ModelContext<Self>,
2188 ) {
2189 if !cx
2190 .global::<Settings>()
2191 .enable_language_server(Some(&language.name()))
2192 {
2193 return;
2194 }
2195
2196 for adapter in language.lsp_adapters() {
2197 let key = (worktree_id, adapter.name.clone());
2198 if self.language_server_ids.contains_key(&key) {
2199 continue;
2200 }
2201
2202 let pending_server = match self.languages.start_language_server(
2203 language.clone(),
2204 adapter.clone(),
2205 worktree_path.clone(),
2206 self.client.http_client(),
2207 cx,
2208 ) {
2209 Some(pending_server) => pending_server,
2210 None => continue,
2211 };
2212
2213 let lsp = &cx.global::<Settings>().lsp.get(&adapter.name.0);
2214 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
2215
2216 let mut initialization_options = adapter.initialization_options.clone();
2217 match (&mut initialization_options, override_options) {
2218 (Some(initialization_options), Some(override_options)) => {
2219 merge_json_value_into(override_options, initialization_options);
2220 }
2221 (None, override_options) => initialization_options = override_options,
2222 _ => {}
2223 }
2224
2225 let server_id = pending_server.server_id;
2226 let state = self.setup_pending_language_server(
2227 initialization_options,
2228 pending_server,
2229 adapter.clone(),
2230 language.clone(),
2231 key.clone(),
2232 cx,
2233 );
2234 self.language_servers.insert(server_id, state);
2235 self.language_server_ids.insert(key.clone(), server_id);
2236 }
2237 }
2238
2239 fn setup_pending_language_server(
2240 &mut self,
2241 initialization_options: Option<serde_json::Value>,
2242 pending_server: PendingLanguageServer,
2243 adapter: Arc<CachedLspAdapter>,
2244 language: Arc<Language>,
2245 key: (WorktreeId, LanguageServerName),
2246 cx: &mut ModelContext<Project>,
2247 ) -> LanguageServerState {
2248 let server_id = pending_server.server_id;
2249 let languages = self.languages.clone();
2250
2251 LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
2252 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2253 let language_server = pending_server.task.await.log_err()?;
2254 let language_server = language_server
2255 .initialize(initialization_options)
2256 .await
2257 .log_err()?;
2258 let this = this.upgrade(&cx)?;
2259
2260 language_server
2261 .on_notification::<lsp::notification::PublishDiagnostics, _>({
2262 let this = this.downgrade();
2263 let adapter = adapter.clone();
2264 move |mut params, cx| {
2265 let this = this;
2266 let adapter = adapter.clone();
2267 cx.spawn(|mut cx| async move {
2268 adapter.process_diagnostics(&mut params).await;
2269 if let Some(this) = this.upgrade(&cx) {
2270 this.update(&mut cx, |this, cx| {
2271 this.update_diagnostics(
2272 server_id,
2273 params,
2274 &adapter.disk_based_diagnostic_sources,
2275 cx,
2276 )
2277 .log_err();
2278 });
2279 }
2280 })
2281 .detach();
2282 }
2283 })
2284 .detach();
2285
2286 language_server
2287 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2288 let languages = languages.clone();
2289 move |params, mut cx| {
2290 let languages = languages.clone();
2291 async move {
2292 let workspace_config =
2293 cx.update(|cx| languages.workspace_configuration(cx)).await;
2294 Ok(params
2295 .items
2296 .into_iter()
2297 .map(|item| {
2298 if let Some(section) = &item.section {
2299 workspace_config
2300 .get(section)
2301 .cloned()
2302 .unwrap_or(serde_json::Value::Null)
2303 } else {
2304 workspace_config.clone()
2305 }
2306 })
2307 .collect())
2308 }
2309 }
2310 })
2311 .detach();
2312
2313 // Even though we don't have handling for these requests, respond to them to
2314 // avoid stalling any language server like `gopls` which waits for a response
2315 // to these requests when initializing.
2316 language_server
2317 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
2318 let this = this.downgrade();
2319 move |params, mut cx| async move {
2320 if let Some(this) = this.upgrade(&cx) {
2321 this.update(&mut cx, |this, _| {
2322 if let Some(status) =
2323 this.language_server_statuses.get_mut(&server_id)
2324 {
2325 if let lsp::NumberOrString::String(token) = params.token {
2326 status.progress_tokens.insert(token);
2327 }
2328 }
2329 });
2330 }
2331 Ok(())
2332 }
2333 })
2334 .detach();
2335 language_server
2336 .on_request::<lsp::request::RegisterCapability, _, _>({
2337 let this = this.downgrade();
2338 move |params, mut cx| async move {
2339 let this = this
2340 .upgrade(&cx)
2341 .ok_or_else(|| anyhow!("project dropped"))?;
2342 for reg in params.registrations {
2343 if reg.method == "workspace/didChangeWatchedFiles" {
2344 if let Some(options) = reg.register_options {
2345 let options = serde_json::from_value(options)?;
2346 this.update(&mut cx, |this, cx| {
2347 this.on_lsp_did_change_watched_files(
2348 server_id, options, cx,
2349 );
2350 });
2351 }
2352 }
2353 }
2354 Ok(())
2355 }
2356 })
2357 .detach();
2358
2359 language_server
2360 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2361 let this = this.downgrade();
2362 let adapter = adapter.clone();
2363 let language_server = language_server.clone();
2364 move |params, cx| {
2365 Self::on_lsp_workspace_edit(
2366 this,
2367 params,
2368 server_id,
2369 adapter.clone(),
2370 language_server.clone(),
2371 cx,
2372 )
2373 }
2374 })
2375 .detach();
2376
2377 let disk_based_diagnostics_progress_token =
2378 adapter.disk_based_diagnostics_progress_token.clone();
2379
2380 language_server
2381 .on_notification::<lsp::notification::Progress, _>({
2382 let this = this.downgrade();
2383 move |params, mut cx| {
2384 if let Some(this) = this.upgrade(&cx) {
2385 this.update(&mut cx, |this, cx| {
2386 this.on_lsp_progress(
2387 params,
2388 server_id,
2389 disk_based_diagnostics_progress_token.clone(),
2390 cx,
2391 );
2392 });
2393 }
2394 }
2395 })
2396 .detach();
2397
2398 language_server
2399 .notify::<lsp::notification::DidChangeConfiguration>(
2400 lsp::DidChangeConfigurationParams {
2401 settings: workspace_config,
2402 },
2403 )
2404 .ok();
2405
2406 this.update(&mut cx, |this, cx| {
2407 // If the language server for this key doesn't match the server id, don't store the
2408 // server. Which will cause it to be dropped, killing the process
2409 if this
2410 .language_server_ids
2411 .get(&key)
2412 .map(|id| id != &server_id)
2413 .unwrap_or(false)
2414 {
2415 return None;
2416 }
2417
2418 // Update language_servers collection with Running variant of LanguageServerState
2419 // indicating that the server is up and running and ready
2420 this.language_servers.insert(
2421 server_id,
2422 LanguageServerState::Running {
2423 adapter: adapter.clone(),
2424 language: language.clone(),
2425 watched_paths: Default::default(),
2426 server: language_server.clone(),
2427 simulate_disk_based_diagnostics_completion: None,
2428 },
2429 );
2430 this.language_server_statuses.insert(
2431 server_id,
2432 LanguageServerStatus {
2433 name: language_server.name().to_string(),
2434 pending_work: Default::default(),
2435 has_pending_diagnostic_updates: false,
2436 progress_tokens: Default::default(),
2437 },
2438 );
2439
2440 if let Some(project_id) = this.remote_id() {
2441 this.client
2442 .send(proto::StartLanguageServer {
2443 project_id,
2444 server: Some(proto::LanguageServer {
2445 id: server_id.0 as u64,
2446 name: language_server.name().to_string(),
2447 }),
2448 })
2449 .log_err();
2450 }
2451
2452 // Tell the language server about every open buffer in the worktree that matches the language.
2453 for buffer in this.opened_buffers.values() {
2454 if let Some(buffer_handle) = buffer.upgrade(cx) {
2455 let buffer = buffer_handle.read(cx);
2456 let file = match File::from_dyn(buffer.file()) {
2457 Some(file) => file,
2458 None => continue,
2459 };
2460 let language = match buffer.language() {
2461 Some(language) => language,
2462 None => continue,
2463 };
2464
2465 if file.worktree.read(cx).id() != key.0
2466 || !language.lsp_adapters().iter().any(|a| a.name == key.1)
2467 {
2468 continue;
2469 }
2470
2471 let file = file.as_local()?;
2472 let versions = this
2473 .buffer_snapshots
2474 .entry(buffer.remote_id())
2475 .or_default()
2476 .entry(server_id)
2477 .or_insert_with(|| {
2478 vec![LspBufferSnapshot {
2479 version: 0,
2480 snapshot: buffer.text_snapshot(),
2481 }]
2482 });
2483
2484 let snapshot = versions.last().unwrap();
2485 let version = snapshot.version;
2486 let initial_snapshot = &snapshot.snapshot;
2487 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2488 language_server
2489 .notify::<lsp::notification::DidOpenTextDocument>(
2490 lsp::DidOpenTextDocumentParams {
2491 text_document: lsp::TextDocumentItem::new(
2492 uri,
2493 adapter
2494 .language_ids
2495 .get(language.name().as_ref())
2496 .cloned()
2497 .unwrap_or_default(),
2498 version,
2499 initial_snapshot.text(),
2500 ),
2501 },
2502 )
2503 .log_err()?;
2504 buffer_handle.update(cx, |buffer, cx| {
2505 buffer.set_completion_triggers(
2506 language_server
2507 .capabilities()
2508 .completion_provider
2509 .as_ref()
2510 .and_then(|provider| provider.trigger_characters.clone())
2511 .unwrap_or_default(),
2512 cx,
2513 )
2514 });
2515 }
2516 }
2517
2518 cx.notify();
2519 Some(language_server)
2520 })
2521 }))
2522 }
2523
2524 // Returns a list of all of the worktrees which no longer have a language server and the root path
2525 // for the stopped server
2526 fn stop_language_server(
2527 &mut self,
2528 worktree_id: WorktreeId,
2529 adapter_name: LanguageServerName,
2530 cx: &mut ModelContext<Self>,
2531 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
2532 let key = (worktree_id, adapter_name);
2533 if let Some(server_id) = self.language_server_ids.remove(&key) {
2534 // Remove other entries for this language server as well
2535 let mut orphaned_worktrees = vec![worktree_id];
2536 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
2537 for other_key in other_keys {
2538 if self.language_server_ids.get(&other_key) == Some(&server_id) {
2539 self.language_server_ids.remove(&other_key);
2540 orphaned_worktrees.push(other_key.0);
2541 }
2542 }
2543
2544 self.language_server_statuses.remove(&server_id);
2545 cx.notify();
2546
2547 let server_state = self.language_servers.remove(&server_id);
2548 cx.spawn_weak(|this, mut cx| async move {
2549 let mut root_path = None;
2550
2551 let server = match server_state {
2552 Some(LanguageServerState::Starting(started_language_server)) => {
2553 started_language_server.await
2554 }
2555 Some(LanguageServerState::Running { server, .. }) => Some(server),
2556 None => None,
2557 };
2558
2559 if let Some(server) = server {
2560 root_path = Some(server.root_path().clone());
2561 if let Some(shutdown) = server.shutdown() {
2562 shutdown.await;
2563 }
2564 }
2565
2566 if let Some(this) = this.upgrade(&cx) {
2567 this.update(&mut cx, |this, cx| {
2568 this.language_server_statuses.remove(&server_id);
2569 cx.notify();
2570 });
2571 }
2572
2573 (root_path, orphaned_worktrees)
2574 })
2575 } else {
2576 Task::ready((None, Vec::new()))
2577 }
2578 }
2579
2580 pub fn restart_language_servers_for_buffers(
2581 &mut self,
2582 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2583 cx: &mut ModelContext<Self>,
2584 ) -> Option<()> {
2585 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, Arc<Language>)> = buffers
2586 .into_iter()
2587 .filter_map(|buffer| {
2588 let buffer = buffer.read(cx);
2589 let file = File::from_dyn(buffer.file())?;
2590 let worktree = file.worktree.read(cx).as_local()?;
2591 let full_path = file.full_path(cx);
2592 let language = self
2593 .languages
2594 .language_for_file(&full_path, Some(buffer.as_rope()))
2595 .now_or_never()?
2596 .ok()?;
2597 Some((worktree.id(), worktree.abs_path().clone(), language))
2598 })
2599 .collect();
2600 for (worktree_id, worktree_abs_path, language) in language_server_lookup_info {
2601 self.restart_language_servers(worktree_id, worktree_abs_path, language, cx);
2602 }
2603
2604 None
2605 }
2606
2607 // TODO This will break in the case where the adapter's root paths and worktrees are not equal
2608 fn restart_language_servers(
2609 &mut self,
2610 worktree_id: WorktreeId,
2611 fallback_path: Arc<Path>,
2612 language: Arc<Language>,
2613 cx: &mut ModelContext<Self>,
2614 ) {
2615 let mut stops = Vec::new();
2616 for adapter in language.lsp_adapters() {
2617 stops.push(self.stop_language_server(worktree_id, adapter.name.clone(), cx));
2618 }
2619
2620 if stops.is_empty() {
2621 return;
2622 }
2623 let mut stops = stops.into_iter();
2624
2625 cx.spawn_weak(|this, mut cx| async move {
2626 let (original_root_path, mut orphaned_worktrees) = stops.next().unwrap().await;
2627 for stop in stops {
2628 let (_, worktrees) = stop.await;
2629 orphaned_worktrees.extend_from_slice(&worktrees);
2630 }
2631
2632 let this = match this.upgrade(&cx) {
2633 Some(this) => this,
2634 None => return,
2635 };
2636
2637 this.update(&mut cx, |this, cx| {
2638 // Attempt to restart using original server path. Fallback to passed in
2639 // path if we could not retrieve the root path
2640 let root_path = original_root_path
2641 .map(|path_buf| Arc::from(path_buf.as_path()))
2642 .unwrap_or(fallback_path);
2643
2644 this.start_language_servers(worktree_id, root_path, language.clone(), cx);
2645
2646 // Lookup new server ids and set them for each of the orphaned worktrees
2647 for adapter in language.lsp_adapters() {
2648 if let Some(new_server_id) = this
2649 .language_server_ids
2650 .get(&(worktree_id, adapter.name.clone()))
2651 .cloned()
2652 {
2653 for &orphaned_worktree in &orphaned_worktrees {
2654 this.language_server_ids
2655 .insert((orphaned_worktree, adapter.name.clone()), new_server_id);
2656 }
2657 }
2658 }
2659 });
2660 })
2661 .detach();
2662 }
2663
2664 fn on_lsp_progress(
2665 &mut self,
2666 progress: lsp::ProgressParams,
2667 language_server_id: LanguageServerId,
2668 disk_based_diagnostics_progress_token: Option<String>,
2669 cx: &mut ModelContext<Self>,
2670 ) {
2671 let token = match progress.token {
2672 lsp::NumberOrString::String(token) => token,
2673 lsp::NumberOrString::Number(token) => {
2674 log::info!("skipping numeric progress token {}", token);
2675 return;
2676 }
2677 };
2678 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
2679 let language_server_status =
2680 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2681 status
2682 } else {
2683 return;
2684 };
2685
2686 if !language_server_status.progress_tokens.contains(&token) {
2687 return;
2688 }
2689
2690 let is_disk_based_diagnostics_progress = disk_based_diagnostics_progress_token
2691 .as_ref()
2692 .map_or(false, |disk_based_token| {
2693 token.starts_with(disk_based_token)
2694 });
2695
2696 match progress {
2697 lsp::WorkDoneProgress::Begin(report) => {
2698 if is_disk_based_diagnostics_progress {
2699 language_server_status.has_pending_diagnostic_updates = true;
2700 self.disk_based_diagnostics_started(language_server_id, cx);
2701 self.buffer_ordered_messages_tx
2702 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2703 language_server_id,
2704 message: proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(Default::default())
2705 })
2706 .ok();
2707 } else {
2708 self.on_lsp_work_start(
2709 language_server_id,
2710 token.clone(),
2711 LanguageServerProgress {
2712 message: report.message.clone(),
2713 percentage: report.percentage.map(|p| p as usize),
2714 last_update_at: Instant::now(),
2715 },
2716 cx,
2717 );
2718 self.buffer_ordered_messages_tx
2719 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2720 language_server_id,
2721 message: proto::update_language_server::Variant::WorkStart(
2722 proto::LspWorkStart {
2723 token,
2724 message: report.message,
2725 percentage: report.percentage.map(|p| p as u32),
2726 },
2727 ),
2728 })
2729 .ok();
2730 }
2731 }
2732 lsp::WorkDoneProgress::Report(report) => {
2733 if !is_disk_based_diagnostics_progress {
2734 self.on_lsp_work_progress(
2735 language_server_id,
2736 token.clone(),
2737 LanguageServerProgress {
2738 message: report.message.clone(),
2739 percentage: report.percentage.map(|p| p as usize),
2740 last_update_at: Instant::now(),
2741 },
2742 cx,
2743 );
2744 self.buffer_ordered_messages_tx
2745 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2746 language_server_id,
2747 message: proto::update_language_server::Variant::WorkProgress(
2748 proto::LspWorkProgress {
2749 token,
2750 message: report.message,
2751 percentage: report.percentage.map(|p| p as u32),
2752 },
2753 ),
2754 })
2755 .ok();
2756 }
2757 }
2758 lsp::WorkDoneProgress::End(_) => {
2759 language_server_status.progress_tokens.remove(&token);
2760
2761 if is_disk_based_diagnostics_progress {
2762 language_server_status.has_pending_diagnostic_updates = false;
2763 self.disk_based_diagnostics_finished(language_server_id, cx);
2764 self.buffer_ordered_messages_tx
2765 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2766 language_server_id,
2767 message:
2768 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2769 Default::default(),
2770 ),
2771 })
2772 .ok();
2773 } else {
2774 self.on_lsp_work_end(language_server_id, token.clone(), cx);
2775 self.buffer_ordered_messages_tx
2776 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2777 language_server_id,
2778 message: proto::update_language_server::Variant::WorkEnd(
2779 proto::LspWorkEnd { token },
2780 ),
2781 })
2782 .ok();
2783 }
2784 }
2785 }
2786 }
2787
2788 fn on_lsp_work_start(
2789 &mut self,
2790 language_server_id: LanguageServerId,
2791 token: String,
2792 progress: LanguageServerProgress,
2793 cx: &mut ModelContext<Self>,
2794 ) {
2795 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2796 status.pending_work.insert(token, progress);
2797 cx.notify();
2798 }
2799 }
2800
2801 fn on_lsp_work_progress(
2802 &mut self,
2803 language_server_id: LanguageServerId,
2804 token: String,
2805 progress: LanguageServerProgress,
2806 cx: &mut ModelContext<Self>,
2807 ) {
2808 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2809 let entry = status
2810 .pending_work
2811 .entry(token)
2812 .or_insert(LanguageServerProgress {
2813 message: Default::default(),
2814 percentage: Default::default(),
2815 last_update_at: progress.last_update_at,
2816 });
2817 if progress.message.is_some() {
2818 entry.message = progress.message;
2819 }
2820 if progress.percentage.is_some() {
2821 entry.percentage = progress.percentage;
2822 }
2823 entry.last_update_at = progress.last_update_at;
2824 cx.notify();
2825 }
2826 }
2827
2828 fn on_lsp_work_end(
2829 &mut self,
2830 language_server_id: LanguageServerId,
2831 token: String,
2832 cx: &mut ModelContext<Self>,
2833 ) {
2834 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2835 status.pending_work.remove(&token);
2836 cx.notify();
2837 }
2838 }
2839
2840 fn on_lsp_did_change_watched_files(
2841 &mut self,
2842 language_server_id: LanguageServerId,
2843 params: DidChangeWatchedFilesRegistrationOptions,
2844 cx: &mut ModelContext<Self>,
2845 ) {
2846 if let Some(LanguageServerState::Running { watched_paths, .. }) =
2847 self.language_servers.get_mut(&language_server_id)
2848 {
2849 watched_paths.clear();
2850 for watcher in params.watchers {
2851 watched_paths.add_pattern(&watcher.glob_pattern).log_err();
2852 }
2853 cx.notify();
2854 }
2855 }
2856
2857 async fn on_lsp_workspace_edit(
2858 this: WeakModelHandle<Self>,
2859 params: lsp::ApplyWorkspaceEditParams,
2860 server_id: LanguageServerId,
2861 adapter: Arc<CachedLspAdapter>,
2862 language_server: Arc<LanguageServer>,
2863 mut cx: AsyncAppContext,
2864 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
2865 let this = this
2866 .upgrade(&cx)
2867 .ok_or_else(|| anyhow!("project project closed"))?;
2868 let transaction = Self::deserialize_workspace_edit(
2869 this.clone(),
2870 params.edit,
2871 true,
2872 adapter.clone(),
2873 language_server.clone(),
2874 &mut cx,
2875 )
2876 .await
2877 .log_err();
2878 this.update(&mut cx, |this, _| {
2879 if let Some(transaction) = transaction {
2880 this.last_workspace_edits_by_language_server
2881 .insert(server_id, transaction);
2882 }
2883 });
2884 Ok(lsp::ApplyWorkspaceEditResponse {
2885 applied: true,
2886 failed_change: None,
2887 failure_reason: None,
2888 })
2889 }
2890
2891 pub fn language_server_statuses(
2892 &self,
2893 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
2894 self.language_server_statuses.values()
2895 }
2896
2897 pub fn update_diagnostics(
2898 &mut self,
2899 language_server_id: LanguageServerId,
2900 mut params: lsp::PublishDiagnosticsParams,
2901 disk_based_sources: &[String],
2902 cx: &mut ModelContext<Self>,
2903 ) -> Result<()> {
2904 let abs_path = params
2905 .uri
2906 .to_file_path()
2907 .map_err(|_| anyhow!("URI is not a file"))?;
2908 let mut diagnostics = Vec::default();
2909 let mut primary_diagnostic_group_ids = HashMap::default();
2910 let mut sources_by_group_id = HashMap::default();
2911 let mut supporting_diagnostics = HashMap::default();
2912
2913 // Ensure that primary diagnostics are always the most severe
2914 params.diagnostics.sort_by_key(|item| item.severity);
2915
2916 for diagnostic in ¶ms.diagnostics {
2917 let source = diagnostic.source.as_ref();
2918 let code = diagnostic.code.as_ref().map(|code| match code {
2919 lsp::NumberOrString::Number(code) => code.to_string(),
2920 lsp::NumberOrString::String(code) => code.clone(),
2921 });
2922 let range = range_from_lsp(diagnostic.range);
2923 let is_supporting = diagnostic
2924 .related_information
2925 .as_ref()
2926 .map_or(false, |infos| {
2927 infos.iter().any(|info| {
2928 primary_diagnostic_group_ids.contains_key(&(
2929 source,
2930 code.clone(),
2931 range_from_lsp(info.location.range),
2932 ))
2933 })
2934 });
2935
2936 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
2937 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
2938 });
2939
2940 if is_supporting {
2941 supporting_diagnostics.insert(
2942 (source, code.clone(), range),
2943 (diagnostic.severity, is_unnecessary),
2944 );
2945 } else {
2946 let group_id = post_inc(&mut self.next_diagnostic_group_id);
2947 let is_disk_based =
2948 source.map_or(false, |source| disk_based_sources.contains(source));
2949
2950 sources_by_group_id.insert(group_id, source);
2951 primary_diagnostic_group_ids
2952 .insert((source, code.clone(), range.clone()), group_id);
2953
2954 diagnostics.push(DiagnosticEntry {
2955 range,
2956 diagnostic: Diagnostic {
2957 source: diagnostic.source.clone(),
2958 code: code.clone(),
2959 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
2960 message: diagnostic.message.clone(),
2961 group_id,
2962 is_primary: true,
2963 is_valid: true,
2964 is_disk_based,
2965 is_unnecessary,
2966 },
2967 });
2968 if let Some(infos) = &diagnostic.related_information {
2969 for info in infos {
2970 if info.location.uri == params.uri && !info.message.is_empty() {
2971 let range = range_from_lsp(info.location.range);
2972 diagnostics.push(DiagnosticEntry {
2973 range,
2974 diagnostic: Diagnostic {
2975 source: diagnostic.source.clone(),
2976 code: code.clone(),
2977 severity: DiagnosticSeverity::INFORMATION,
2978 message: info.message.clone(),
2979 group_id,
2980 is_primary: false,
2981 is_valid: true,
2982 is_disk_based,
2983 is_unnecessary: false,
2984 },
2985 });
2986 }
2987 }
2988 }
2989 }
2990 }
2991
2992 for entry in &mut diagnostics {
2993 let diagnostic = &mut entry.diagnostic;
2994 if !diagnostic.is_primary {
2995 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
2996 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
2997 source,
2998 diagnostic.code.clone(),
2999 entry.range.clone(),
3000 )) {
3001 if let Some(severity) = severity {
3002 diagnostic.severity = severity;
3003 }
3004 diagnostic.is_unnecessary = is_unnecessary;
3005 }
3006 }
3007 }
3008
3009 self.update_diagnostic_entries(
3010 language_server_id,
3011 abs_path,
3012 params.version,
3013 diagnostics,
3014 cx,
3015 )?;
3016 Ok(())
3017 }
3018
3019 pub fn update_diagnostic_entries(
3020 &mut self,
3021 server_id: LanguageServerId,
3022 abs_path: PathBuf,
3023 version: Option<i32>,
3024 diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3025 cx: &mut ModelContext<Project>,
3026 ) -> Result<(), anyhow::Error> {
3027 let (worktree, relative_path) = self
3028 .find_local_worktree(&abs_path, cx)
3029 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
3030
3031 let project_path = ProjectPath {
3032 worktree_id: worktree.read(cx).id(),
3033 path: relative_path.into(),
3034 };
3035
3036 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
3037 self.update_buffer_diagnostics(&buffer, server_id, version, diagnostics.clone(), cx)?;
3038 }
3039
3040 let updated = worktree.update(cx, |worktree, cx| {
3041 worktree
3042 .as_local_mut()
3043 .ok_or_else(|| anyhow!("not a local worktree"))?
3044 .update_diagnostics(server_id, project_path.path.clone(), diagnostics, cx)
3045 })?;
3046 if updated {
3047 cx.emit(Event::DiagnosticsUpdated {
3048 language_server_id: server_id,
3049 path: project_path,
3050 });
3051 }
3052 Ok(())
3053 }
3054
3055 fn update_buffer_diagnostics(
3056 &mut self,
3057 buffer: &ModelHandle<Buffer>,
3058 server_id: LanguageServerId,
3059 version: Option<i32>,
3060 mut diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3061 cx: &mut ModelContext<Self>,
3062 ) -> Result<()> {
3063 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
3064 Ordering::Equal
3065 .then_with(|| b.is_primary.cmp(&a.is_primary))
3066 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
3067 .then_with(|| a.severity.cmp(&b.severity))
3068 .then_with(|| a.message.cmp(&b.message))
3069 }
3070
3071 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx)?;
3072
3073 diagnostics.sort_unstable_by(|a, b| {
3074 Ordering::Equal
3075 .then_with(|| a.range.start.cmp(&b.range.start))
3076 .then_with(|| b.range.end.cmp(&a.range.end))
3077 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
3078 });
3079
3080 let mut sanitized_diagnostics = Vec::new();
3081 let edits_since_save = Patch::new(
3082 snapshot
3083 .edits_since::<Unclipped<PointUtf16>>(buffer.read(cx).saved_version())
3084 .collect(),
3085 );
3086 for entry in diagnostics {
3087 let start;
3088 let end;
3089 if entry.diagnostic.is_disk_based {
3090 // Some diagnostics are based on files on disk instead of buffers'
3091 // current contents. Adjust these diagnostics' ranges to reflect
3092 // any unsaved edits.
3093 start = edits_since_save.old_to_new(entry.range.start);
3094 end = edits_since_save.old_to_new(entry.range.end);
3095 } else {
3096 start = entry.range.start;
3097 end = entry.range.end;
3098 }
3099
3100 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
3101 ..snapshot.clip_point_utf16(end, Bias::Right);
3102
3103 // Expand empty ranges by one codepoint
3104 if range.start == range.end {
3105 // This will be go to the next boundary when being clipped
3106 range.end.column += 1;
3107 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Right);
3108 if range.start == range.end && range.end.column > 0 {
3109 range.start.column -= 1;
3110 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Left);
3111 }
3112 }
3113
3114 sanitized_diagnostics.push(DiagnosticEntry {
3115 range,
3116 diagnostic: entry.diagnostic,
3117 });
3118 }
3119 drop(edits_since_save);
3120
3121 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
3122 buffer.update(cx, |buffer, cx| {
3123 buffer.update_diagnostics(server_id, set, cx)
3124 });
3125 Ok(())
3126 }
3127
3128 pub fn reload_buffers(
3129 &self,
3130 buffers: HashSet<ModelHandle<Buffer>>,
3131 push_to_history: bool,
3132 cx: &mut ModelContext<Self>,
3133 ) -> Task<Result<ProjectTransaction>> {
3134 let mut local_buffers = Vec::new();
3135 let mut remote_buffers = None;
3136 for buffer_handle in buffers {
3137 let buffer = buffer_handle.read(cx);
3138 if buffer.is_dirty() {
3139 if let Some(file) = File::from_dyn(buffer.file()) {
3140 if file.is_local() {
3141 local_buffers.push(buffer_handle);
3142 } else {
3143 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3144 }
3145 }
3146 }
3147 }
3148
3149 let remote_buffers = self.remote_id().zip(remote_buffers);
3150 let client = self.client.clone();
3151
3152 cx.spawn(|this, mut cx| async move {
3153 let mut project_transaction = ProjectTransaction::default();
3154
3155 if let Some((project_id, remote_buffers)) = remote_buffers {
3156 let response = client
3157 .request(proto::ReloadBuffers {
3158 project_id,
3159 buffer_ids: remote_buffers
3160 .iter()
3161 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3162 .collect(),
3163 })
3164 .await?
3165 .transaction
3166 .ok_or_else(|| anyhow!("missing transaction"))?;
3167 project_transaction = this
3168 .update(&mut cx, |this, cx| {
3169 this.deserialize_project_transaction(response, push_to_history, cx)
3170 })
3171 .await?;
3172 }
3173
3174 for buffer in local_buffers {
3175 let transaction = buffer
3176 .update(&mut cx, |buffer, cx| buffer.reload(cx))
3177 .await?;
3178 buffer.update(&mut cx, |buffer, cx| {
3179 if let Some(transaction) = transaction {
3180 if !push_to_history {
3181 buffer.forget_transaction(transaction.id);
3182 }
3183 project_transaction.0.insert(cx.handle(), transaction);
3184 }
3185 });
3186 }
3187
3188 Ok(project_transaction)
3189 })
3190 }
3191
3192 pub fn format(
3193 &self,
3194 buffers: HashSet<ModelHandle<Buffer>>,
3195 push_to_history: bool,
3196 trigger: FormatTrigger,
3197 cx: &mut ModelContext<Project>,
3198 ) -> Task<Result<ProjectTransaction>> {
3199 if self.is_local() {
3200 let mut buffers_with_paths_and_servers = buffers
3201 .into_iter()
3202 .filter_map(|buffer_handle| {
3203 let buffer = buffer_handle.read(cx);
3204 let file = File::from_dyn(buffer.file())?;
3205 let buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3206 let server = self
3207 .primary_language_servers_for_buffer(buffer, cx)
3208 .map(|s| s.1.clone());
3209 Some((buffer_handle, buffer_abs_path, server))
3210 })
3211 .collect::<Vec<_>>();
3212
3213 cx.spawn(|this, mut cx| async move {
3214 // Do not allow multiple concurrent formatting requests for the
3215 // same buffer.
3216 this.update(&mut cx, |this, _| {
3217 buffers_with_paths_and_servers
3218 .retain(|(buffer, _, _)| this.buffers_being_formatted.insert(buffer.id()));
3219 });
3220
3221 let _cleanup = defer({
3222 let this = this.clone();
3223 let mut cx = cx.clone();
3224 let buffers = &buffers_with_paths_and_servers;
3225 move || {
3226 this.update(&mut cx, |this, _| {
3227 for (buffer, _, _) in buffers {
3228 this.buffers_being_formatted.remove(&buffer.id());
3229 }
3230 });
3231 }
3232 });
3233
3234 let mut project_transaction = ProjectTransaction::default();
3235 for (buffer, buffer_abs_path, language_server) in &buffers_with_paths_and_servers {
3236 let (
3237 format_on_save,
3238 remove_trailing_whitespace,
3239 ensure_final_newline,
3240 formatter,
3241 tab_size,
3242 ) = buffer.read_with(&cx, |buffer, cx| {
3243 let settings = cx.global::<Settings>();
3244 let language_name = buffer.language().map(|language| language.name());
3245 (
3246 settings.format_on_save(language_name.as_deref()),
3247 settings.remove_trailing_whitespace_on_save(language_name.as_deref()),
3248 settings.ensure_final_newline_on_save(language_name.as_deref()),
3249 settings.formatter(language_name.as_deref()),
3250 settings.tab_size(language_name.as_deref()),
3251 )
3252 });
3253
3254 // First, format buffer's whitespace according to the settings.
3255 let trailing_whitespace_diff = if remove_trailing_whitespace {
3256 Some(
3257 buffer
3258 .read_with(&cx, |b, cx| b.remove_trailing_whitespace(cx))
3259 .await,
3260 )
3261 } else {
3262 None
3263 };
3264 let whitespace_transaction_id = buffer.update(&mut cx, |buffer, cx| {
3265 buffer.finalize_last_transaction();
3266 buffer.start_transaction();
3267 if let Some(diff) = trailing_whitespace_diff {
3268 buffer.apply_diff(diff, cx);
3269 }
3270 if ensure_final_newline {
3271 buffer.ensure_final_newline(cx);
3272 }
3273 buffer.end_transaction(cx)
3274 });
3275
3276 // Currently, formatting operations are represented differently depending on
3277 // whether they come from a language server or an external command.
3278 enum FormatOperation {
3279 Lsp(Vec<(Range<Anchor>, String)>),
3280 External(Diff),
3281 }
3282
3283 // Apply language-specific formatting using either a language server
3284 // or external command.
3285 let mut format_operation = None;
3286 match (formatter, format_on_save) {
3287 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => {}
3288
3289 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
3290 | (_, FormatOnSave::LanguageServer) => {
3291 if let Some((language_server, buffer_abs_path)) =
3292 language_server.as_ref().zip(buffer_abs_path.as_ref())
3293 {
3294 format_operation = Some(FormatOperation::Lsp(
3295 Self::format_via_lsp(
3296 &this,
3297 &buffer,
3298 buffer_abs_path,
3299 &language_server,
3300 tab_size,
3301 &mut cx,
3302 )
3303 .await
3304 .context("failed to format via language server")?,
3305 ));
3306 }
3307 }
3308
3309 (
3310 Formatter::External { command, arguments },
3311 FormatOnSave::On | FormatOnSave::Off,
3312 )
3313 | (_, FormatOnSave::External { command, arguments }) => {
3314 if let Some(buffer_abs_path) = buffer_abs_path {
3315 format_operation = Self::format_via_external_command(
3316 &buffer,
3317 &buffer_abs_path,
3318 &command,
3319 &arguments,
3320 &mut cx,
3321 )
3322 .await
3323 .context(format!(
3324 "failed to format via external command {:?}",
3325 command
3326 ))?
3327 .map(FormatOperation::External);
3328 }
3329 }
3330 };
3331
3332 buffer.update(&mut cx, |b, cx| {
3333 // If the buffer had its whitespace formatted and was edited while the language-specific
3334 // formatting was being computed, avoid applying the language-specific formatting, because
3335 // it can't be grouped with the whitespace formatting in the undo history.
3336 if let Some(transaction_id) = whitespace_transaction_id {
3337 if b.peek_undo_stack()
3338 .map_or(true, |e| e.transaction_id() != transaction_id)
3339 {
3340 format_operation.take();
3341 }
3342 }
3343
3344 // Apply any language-specific formatting, and group the two formatting operations
3345 // in the buffer's undo history.
3346 if let Some(operation) = format_operation {
3347 match operation {
3348 FormatOperation::Lsp(edits) => {
3349 b.edit(edits, None, cx);
3350 }
3351 FormatOperation::External(diff) => {
3352 b.apply_diff(diff, cx);
3353 }
3354 }
3355
3356 if let Some(transaction_id) = whitespace_transaction_id {
3357 b.group_until_transaction(transaction_id);
3358 }
3359 }
3360
3361 if let Some(transaction) = b.finalize_last_transaction().cloned() {
3362 if !push_to_history {
3363 b.forget_transaction(transaction.id);
3364 }
3365 project_transaction.0.insert(buffer.clone(), transaction);
3366 }
3367 });
3368 }
3369
3370 Ok(project_transaction)
3371 })
3372 } else {
3373 let remote_id = self.remote_id();
3374 let client = self.client.clone();
3375 cx.spawn(|this, mut cx| async move {
3376 let mut project_transaction = ProjectTransaction::default();
3377 if let Some(project_id) = remote_id {
3378 let response = client
3379 .request(proto::FormatBuffers {
3380 project_id,
3381 trigger: trigger as i32,
3382 buffer_ids: buffers
3383 .iter()
3384 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3385 .collect(),
3386 })
3387 .await?
3388 .transaction
3389 .ok_or_else(|| anyhow!("missing transaction"))?;
3390 project_transaction = this
3391 .update(&mut cx, |this, cx| {
3392 this.deserialize_project_transaction(response, push_to_history, cx)
3393 })
3394 .await?;
3395 }
3396 Ok(project_transaction)
3397 })
3398 }
3399 }
3400
3401 async fn format_via_lsp(
3402 this: &ModelHandle<Self>,
3403 buffer: &ModelHandle<Buffer>,
3404 abs_path: &Path,
3405 language_server: &Arc<LanguageServer>,
3406 tab_size: NonZeroU32,
3407 cx: &mut AsyncAppContext,
3408 ) -> Result<Vec<(Range<Anchor>, String)>> {
3409 let text_document =
3410 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(abs_path).unwrap());
3411 let capabilities = &language_server.capabilities();
3412 let lsp_edits = if capabilities
3413 .document_formatting_provider
3414 .as_ref()
3415 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3416 {
3417 language_server
3418 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
3419 text_document,
3420 options: lsp::FormattingOptions {
3421 tab_size: tab_size.into(),
3422 insert_spaces: true,
3423 insert_final_newline: Some(true),
3424 ..Default::default()
3425 },
3426 work_done_progress_params: Default::default(),
3427 })
3428 .await?
3429 } else if capabilities
3430 .document_range_formatting_provider
3431 .as_ref()
3432 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3433 {
3434 let buffer_start = lsp::Position::new(0, 0);
3435 let buffer_end =
3436 buffer.read_with(cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
3437 language_server
3438 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
3439 text_document,
3440 range: lsp::Range::new(buffer_start, buffer_end),
3441 options: lsp::FormattingOptions {
3442 tab_size: tab_size.into(),
3443 insert_spaces: true,
3444 insert_final_newline: Some(true),
3445 ..Default::default()
3446 },
3447 work_done_progress_params: Default::default(),
3448 })
3449 .await?
3450 } else {
3451 None
3452 };
3453
3454 if let Some(lsp_edits) = lsp_edits {
3455 this.update(cx, |this, cx| {
3456 this.edits_from_lsp(buffer, lsp_edits, language_server.server_id(), None, cx)
3457 })
3458 .await
3459 } else {
3460 Ok(Default::default())
3461 }
3462 }
3463
3464 async fn format_via_external_command(
3465 buffer: &ModelHandle<Buffer>,
3466 buffer_abs_path: &Path,
3467 command: &str,
3468 arguments: &[String],
3469 cx: &mut AsyncAppContext,
3470 ) -> Result<Option<Diff>> {
3471 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
3472 let file = File::from_dyn(buffer.file())?;
3473 let worktree = file.worktree.read(cx).as_local()?;
3474 let mut worktree_path = worktree.abs_path().to_path_buf();
3475 if worktree.root_entry()?.is_file() {
3476 worktree_path.pop();
3477 }
3478 Some(worktree_path)
3479 });
3480
3481 if let Some(working_dir_path) = working_dir_path {
3482 let mut child =
3483 smol::process::Command::new(command)
3484 .args(arguments.iter().map(|arg| {
3485 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
3486 }))
3487 .current_dir(&working_dir_path)
3488 .stdin(smol::process::Stdio::piped())
3489 .stdout(smol::process::Stdio::piped())
3490 .stderr(smol::process::Stdio::piped())
3491 .spawn()?;
3492 let stdin = child
3493 .stdin
3494 .as_mut()
3495 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
3496 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
3497 for chunk in text.chunks() {
3498 stdin.write_all(chunk.as_bytes()).await?;
3499 }
3500 stdin.flush().await?;
3501
3502 let output = child.output().await?;
3503 if !output.status.success() {
3504 return Err(anyhow!(
3505 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
3506 output.status.code(),
3507 String::from_utf8_lossy(&output.stdout),
3508 String::from_utf8_lossy(&output.stderr),
3509 ));
3510 }
3511
3512 let stdout = String::from_utf8(output.stdout)?;
3513 Ok(Some(
3514 buffer
3515 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
3516 .await,
3517 ))
3518 } else {
3519 Ok(None)
3520 }
3521 }
3522
3523 pub fn definition<T: ToPointUtf16>(
3524 &self,
3525 buffer: &ModelHandle<Buffer>,
3526 position: T,
3527 cx: &mut ModelContext<Self>,
3528 ) -> Task<Result<Vec<LocationLink>>> {
3529 let position = position.to_point_utf16(buffer.read(cx));
3530 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
3531 }
3532
3533 pub fn type_definition<T: ToPointUtf16>(
3534 &self,
3535 buffer: &ModelHandle<Buffer>,
3536 position: T,
3537 cx: &mut ModelContext<Self>,
3538 ) -> Task<Result<Vec<LocationLink>>> {
3539 let position = position.to_point_utf16(buffer.read(cx));
3540 self.request_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
3541 }
3542
3543 pub fn references<T: ToPointUtf16>(
3544 &self,
3545 buffer: &ModelHandle<Buffer>,
3546 position: T,
3547 cx: &mut ModelContext<Self>,
3548 ) -> Task<Result<Vec<Location>>> {
3549 let position = position.to_point_utf16(buffer.read(cx));
3550 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
3551 }
3552
3553 pub fn document_highlights<T: ToPointUtf16>(
3554 &self,
3555 buffer: &ModelHandle<Buffer>,
3556 position: T,
3557 cx: &mut ModelContext<Self>,
3558 ) -> Task<Result<Vec<DocumentHighlight>>> {
3559 let position = position.to_point_utf16(buffer.read(cx));
3560 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
3561 }
3562
3563 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
3564 if self.is_local() {
3565 let mut requests = Vec::new();
3566 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
3567 let worktree_id = *worktree_id;
3568 if let Some(worktree) = self
3569 .worktree_for_id(worktree_id, cx)
3570 .and_then(|worktree| worktree.read(cx).as_local())
3571 {
3572 if let Some(LanguageServerState::Running {
3573 adapter,
3574 language,
3575 server,
3576 ..
3577 }) = self.language_servers.get(server_id)
3578 {
3579 let adapter = adapter.clone();
3580 let language = language.clone();
3581 let worktree_abs_path = worktree.abs_path().clone();
3582 requests.push(
3583 server
3584 .request::<lsp::request::WorkspaceSymbol>(
3585 lsp::WorkspaceSymbolParams {
3586 query: query.to_string(),
3587 ..Default::default()
3588 },
3589 )
3590 .log_err()
3591 .map(move |response| {
3592 (
3593 adapter,
3594 language,
3595 worktree_id,
3596 worktree_abs_path,
3597 response.unwrap_or_default(),
3598 )
3599 }),
3600 );
3601 }
3602 }
3603 }
3604
3605 cx.spawn_weak(|this, cx| async move {
3606 let responses = futures::future::join_all(requests).await;
3607 let this = if let Some(this) = this.upgrade(&cx) {
3608 this
3609 } else {
3610 return Ok(Default::default());
3611 };
3612 let symbols = this.read_with(&cx, |this, cx| {
3613 let mut symbols = Vec::new();
3614 for (
3615 adapter,
3616 adapter_language,
3617 source_worktree_id,
3618 worktree_abs_path,
3619 response,
3620 ) in responses
3621 {
3622 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3623 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3624 let mut worktree_id = source_worktree_id;
3625 let path;
3626 if let Some((worktree, rel_path)) =
3627 this.find_local_worktree(&abs_path, cx)
3628 {
3629 worktree_id = worktree.read(cx).id();
3630 path = rel_path;
3631 } else {
3632 path = relativize_path(&worktree_abs_path, &abs_path);
3633 }
3634
3635 let project_path = ProjectPath {
3636 worktree_id,
3637 path: path.into(),
3638 };
3639 let signature = this.symbol_signature(&project_path);
3640 let adapter_language = adapter_language.clone();
3641 let language = this
3642 .languages
3643 .language_for_file(&project_path.path, None)
3644 .unwrap_or_else(move |_| adapter_language);
3645 let language_server_name = adapter.name.clone();
3646 Some(async move {
3647 let language = language.await;
3648 let label = language
3649 .label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3650 .await;
3651
3652 Symbol {
3653 language_server_name,
3654 source_worktree_id,
3655 path: project_path,
3656 label: label.unwrap_or_else(|| {
3657 CodeLabel::plain(lsp_symbol.name.clone(), None)
3658 }),
3659 kind: lsp_symbol.kind,
3660 name: lsp_symbol.name,
3661 range: range_from_lsp(lsp_symbol.location.range),
3662 signature,
3663 }
3664 })
3665 }));
3666 }
3667 symbols
3668 });
3669 Ok(futures::future::join_all(symbols).await)
3670 })
3671 } else if let Some(project_id) = self.remote_id() {
3672 let request = self.client.request(proto::GetProjectSymbols {
3673 project_id,
3674 query: query.to_string(),
3675 });
3676 cx.spawn_weak(|this, cx| async move {
3677 let response = request.await?;
3678 let mut symbols = Vec::new();
3679 if let Some(this) = this.upgrade(&cx) {
3680 let new_symbols = this.read_with(&cx, |this, _| {
3681 response
3682 .symbols
3683 .into_iter()
3684 .map(|symbol| this.deserialize_symbol(symbol))
3685 .collect::<Vec<_>>()
3686 });
3687 symbols = futures::future::join_all(new_symbols)
3688 .await
3689 .into_iter()
3690 .filter_map(|symbol| symbol.log_err())
3691 .collect::<Vec<_>>();
3692 }
3693 Ok(symbols)
3694 })
3695 } else {
3696 Task::ready(Ok(Default::default()))
3697 }
3698 }
3699
3700 pub fn open_buffer_for_symbol(
3701 &mut self,
3702 symbol: &Symbol,
3703 cx: &mut ModelContext<Self>,
3704 ) -> Task<Result<ModelHandle<Buffer>>> {
3705 if self.is_local() {
3706 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
3707 symbol.source_worktree_id,
3708 symbol.language_server_name.clone(),
3709 )) {
3710 *id
3711 } else {
3712 return Task::ready(Err(anyhow!(
3713 "language server for worktree and language not found"
3714 )));
3715 };
3716
3717 let worktree_abs_path = if let Some(worktree_abs_path) = self
3718 .worktree_for_id(symbol.path.worktree_id, cx)
3719 .and_then(|worktree| worktree.read(cx).as_local())
3720 .map(|local_worktree| local_worktree.abs_path())
3721 {
3722 worktree_abs_path
3723 } else {
3724 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3725 };
3726 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
3727 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3728 uri
3729 } else {
3730 return Task::ready(Err(anyhow!("invalid symbol path")));
3731 };
3732
3733 self.open_local_buffer_via_lsp(
3734 symbol_uri,
3735 language_server_id,
3736 symbol.language_server_name.clone(),
3737 cx,
3738 )
3739 } else if let Some(project_id) = self.remote_id() {
3740 let request = self.client.request(proto::OpenBufferForSymbol {
3741 project_id,
3742 symbol: Some(serialize_symbol(symbol)),
3743 });
3744 cx.spawn(|this, mut cx| async move {
3745 let response = request.await?;
3746 this.update(&mut cx, |this, cx| {
3747 this.wait_for_remote_buffer(response.buffer_id, cx)
3748 })
3749 .await
3750 })
3751 } else {
3752 Task::ready(Err(anyhow!("project does not have a remote id")))
3753 }
3754 }
3755
3756 pub fn hover<T: ToPointUtf16>(
3757 &self,
3758 buffer: &ModelHandle<Buffer>,
3759 position: T,
3760 cx: &mut ModelContext<Self>,
3761 ) -> Task<Result<Option<Hover>>> {
3762 let position = position.to_point_utf16(buffer.read(cx));
3763 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3764 }
3765
3766 pub fn completions<T: ToPointUtf16>(
3767 &self,
3768 buffer: &ModelHandle<Buffer>,
3769 position: T,
3770 cx: &mut ModelContext<Self>,
3771 ) -> Task<Result<Vec<Completion>>> {
3772 let position = position.to_point_utf16(buffer.read(cx));
3773 self.request_lsp(buffer.clone(), GetCompletions { position }, cx)
3774 }
3775
3776 pub fn apply_additional_edits_for_completion(
3777 &self,
3778 buffer_handle: ModelHandle<Buffer>,
3779 completion: Completion,
3780 push_to_history: bool,
3781 cx: &mut ModelContext<Self>,
3782 ) -> Task<Result<Option<Transaction>>> {
3783 let buffer = buffer_handle.read(cx);
3784 let buffer_id = buffer.remote_id();
3785
3786 if self.is_local() {
3787 let lang_server = match self.primary_language_servers_for_buffer(buffer, cx) {
3788 Some((_, server)) => server.clone(),
3789 _ => return Task::ready(Ok(Default::default())),
3790 };
3791
3792 cx.spawn(|this, mut cx| async move {
3793 let resolved_completion = lang_server
3794 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3795 .await?;
3796
3797 if let Some(edits) = resolved_completion.additional_text_edits {
3798 let edits = this
3799 .update(&mut cx, |this, cx| {
3800 this.edits_from_lsp(
3801 &buffer_handle,
3802 edits,
3803 lang_server.server_id(),
3804 None,
3805 cx,
3806 )
3807 })
3808 .await?;
3809
3810 buffer_handle.update(&mut cx, |buffer, cx| {
3811 buffer.finalize_last_transaction();
3812 buffer.start_transaction();
3813
3814 for (range, text) in edits {
3815 let primary = &completion.old_range;
3816 let start_within = primary.start.cmp(&range.start, buffer).is_le()
3817 && primary.end.cmp(&range.start, buffer).is_ge();
3818 let end_within = range.start.cmp(&primary.end, buffer).is_le()
3819 && range.end.cmp(&primary.end, buffer).is_ge();
3820
3821 //Skip addtional edits which overlap with the primary completion edit
3822 //https://github.com/zed-industries/zed/pull/1871
3823 if !start_within && !end_within {
3824 buffer.edit([(range, text)], None, cx);
3825 }
3826 }
3827
3828 let transaction = if buffer.end_transaction(cx).is_some() {
3829 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3830 if !push_to_history {
3831 buffer.forget_transaction(transaction.id);
3832 }
3833 Some(transaction)
3834 } else {
3835 None
3836 };
3837 Ok(transaction)
3838 })
3839 } else {
3840 Ok(None)
3841 }
3842 })
3843 } else if let Some(project_id) = self.remote_id() {
3844 let client = self.client.clone();
3845 cx.spawn(|_, mut cx| async move {
3846 let response = client
3847 .request(proto::ApplyCompletionAdditionalEdits {
3848 project_id,
3849 buffer_id,
3850 completion: Some(language::proto::serialize_completion(&completion)),
3851 })
3852 .await?;
3853
3854 if let Some(transaction) = response.transaction {
3855 let transaction = language::proto::deserialize_transaction(transaction)?;
3856 buffer_handle
3857 .update(&mut cx, |buffer, _| {
3858 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
3859 })
3860 .await?;
3861 if push_to_history {
3862 buffer_handle.update(&mut cx, |buffer, _| {
3863 buffer.push_transaction(transaction.clone(), Instant::now());
3864 });
3865 }
3866 Ok(Some(transaction))
3867 } else {
3868 Ok(None)
3869 }
3870 })
3871 } else {
3872 Task::ready(Err(anyhow!("project does not have a remote id")))
3873 }
3874 }
3875
3876 pub fn code_actions<T: Clone + ToOffset>(
3877 &self,
3878 buffer_handle: &ModelHandle<Buffer>,
3879 range: Range<T>,
3880 cx: &mut ModelContext<Self>,
3881 ) -> Task<Result<Vec<CodeAction>>> {
3882 let buffer = buffer_handle.read(cx);
3883 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3884 self.request_lsp(buffer_handle.clone(), GetCodeActions { range }, cx)
3885 }
3886
3887 pub fn apply_code_action(
3888 &self,
3889 buffer_handle: ModelHandle<Buffer>,
3890 mut action: CodeAction,
3891 push_to_history: bool,
3892 cx: &mut ModelContext<Self>,
3893 ) -> Task<Result<ProjectTransaction>> {
3894 if self.is_local() {
3895 let buffer = buffer_handle.read(cx);
3896 let (lsp_adapter, lang_server) = if let Some((adapter, server)) =
3897 self.language_server_for_buffer(buffer, action.server_id, cx)
3898 {
3899 (adapter.clone(), server.clone())
3900 } else {
3901 return Task::ready(Ok(Default::default()));
3902 };
3903 let range = action.range.to_point_utf16(buffer);
3904
3905 cx.spawn(|this, mut cx| async move {
3906 if let Some(lsp_range) = action
3907 .lsp_action
3908 .data
3909 .as_mut()
3910 .and_then(|d| d.get_mut("codeActionParams"))
3911 .and_then(|d| d.get_mut("range"))
3912 {
3913 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
3914 action.lsp_action = lang_server
3915 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
3916 .await?;
3917 } else {
3918 let actions = this
3919 .update(&mut cx, |this, cx| {
3920 this.code_actions(&buffer_handle, action.range, cx)
3921 })
3922 .await?;
3923 action.lsp_action = actions
3924 .into_iter()
3925 .find(|a| a.lsp_action.title == action.lsp_action.title)
3926 .ok_or_else(|| anyhow!("code action is outdated"))?
3927 .lsp_action;
3928 }
3929
3930 if let Some(edit) = action.lsp_action.edit {
3931 if edit.changes.is_some() || edit.document_changes.is_some() {
3932 return Self::deserialize_workspace_edit(
3933 this,
3934 edit,
3935 push_to_history,
3936 lsp_adapter.clone(),
3937 lang_server.clone(),
3938 &mut cx,
3939 )
3940 .await;
3941 }
3942 }
3943
3944 if let Some(command) = action.lsp_action.command {
3945 this.update(&mut cx, |this, _| {
3946 this.last_workspace_edits_by_language_server
3947 .remove(&lang_server.server_id());
3948 });
3949 lang_server
3950 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
3951 command: command.command,
3952 arguments: command.arguments.unwrap_or_default(),
3953 ..Default::default()
3954 })
3955 .await?;
3956 return Ok(this.update(&mut cx, |this, _| {
3957 this.last_workspace_edits_by_language_server
3958 .remove(&lang_server.server_id())
3959 .unwrap_or_default()
3960 }));
3961 }
3962
3963 Ok(ProjectTransaction::default())
3964 })
3965 } else if let Some(project_id) = self.remote_id() {
3966 let client = self.client.clone();
3967 let request = proto::ApplyCodeAction {
3968 project_id,
3969 buffer_id: buffer_handle.read(cx).remote_id(),
3970 action: Some(language::proto::serialize_code_action(&action)),
3971 };
3972 cx.spawn(|this, mut cx| async move {
3973 let response = client
3974 .request(request)
3975 .await?
3976 .transaction
3977 .ok_or_else(|| anyhow!("missing transaction"))?;
3978 this.update(&mut cx, |this, cx| {
3979 this.deserialize_project_transaction(response, push_to_history, cx)
3980 })
3981 .await
3982 })
3983 } else {
3984 Task::ready(Err(anyhow!("project does not have a remote id")))
3985 }
3986 }
3987
3988 async fn deserialize_workspace_edit(
3989 this: ModelHandle<Self>,
3990 edit: lsp::WorkspaceEdit,
3991 push_to_history: bool,
3992 lsp_adapter: Arc<CachedLspAdapter>,
3993 language_server: Arc<LanguageServer>,
3994 cx: &mut AsyncAppContext,
3995 ) -> Result<ProjectTransaction> {
3996 let fs = this.read_with(cx, |this, _| this.fs.clone());
3997 let mut operations = Vec::new();
3998 if let Some(document_changes) = edit.document_changes {
3999 match document_changes {
4000 lsp::DocumentChanges::Edits(edits) => {
4001 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
4002 }
4003 lsp::DocumentChanges::Operations(ops) => operations = ops,
4004 }
4005 } else if let Some(changes) = edit.changes {
4006 operations.extend(changes.into_iter().map(|(uri, edits)| {
4007 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
4008 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
4009 uri,
4010 version: None,
4011 },
4012 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
4013 })
4014 }));
4015 }
4016
4017 let mut project_transaction = ProjectTransaction::default();
4018 for operation in operations {
4019 match operation {
4020 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
4021 let abs_path = op
4022 .uri
4023 .to_file_path()
4024 .map_err(|_| anyhow!("can't convert URI to path"))?;
4025
4026 if let Some(parent_path) = abs_path.parent() {
4027 fs.create_dir(parent_path).await?;
4028 }
4029 if abs_path.ends_with("/") {
4030 fs.create_dir(&abs_path).await?;
4031 } else {
4032 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
4033 .await?;
4034 }
4035 }
4036
4037 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
4038 let source_abs_path = op
4039 .old_uri
4040 .to_file_path()
4041 .map_err(|_| anyhow!("can't convert URI to path"))?;
4042 let target_abs_path = op
4043 .new_uri
4044 .to_file_path()
4045 .map_err(|_| anyhow!("can't convert URI to path"))?;
4046 fs.rename(
4047 &source_abs_path,
4048 &target_abs_path,
4049 op.options.map(Into::into).unwrap_or_default(),
4050 )
4051 .await?;
4052 }
4053
4054 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
4055 let abs_path = op
4056 .uri
4057 .to_file_path()
4058 .map_err(|_| anyhow!("can't convert URI to path"))?;
4059 let options = op.options.map(Into::into).unwrap_or_default();
4060 if abs_path.ends_with("/") {
4061 fs.remove_dir(&abs_path, options).await?;
4062 } else {
4063 fs.remove_file(&abs_path, options).await?;
4064 }
4065 }
4066
4067 lsp::DocumentChangeOperation::Edit(op) => {
4068 let buffer_to_edit = this
4069 .update(cx, |this, cx| {
4070 this.open_local_buffer_via_lsp(
4071 op.text_document.uri,
4072 language_server.server_id(),
4073 lsp_adapter.name.clone(),
4074 cx,
4075 )
4076 })
4077 .await?;
4078
4079 let edits = this
4080 .update(cx, |this, cx| {
4081 let edits = op.edits.into_iter().map(|edit| match edit {
4082 lsp::OneOf::Left(edit) => edit,
4083 lsp::OneOf::Right(edit) => edit.text_edit,
4084 });
4085 this.edits_from_lsp(
4086 &buffer_to_edit,
4087 edits,
4088 language_server.server_id(),
4089 op.text_document.version,
4090 cx,
4091 )
4092 })
4093 .await?;
4094
4095 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4096 buffer.finalize_last_transaction();
4097 buffer.start_transaction();
4098 for (range, text) in edits {
4099 buffer.edit([(range, text)], None, cx);
4100 }
4101 let transaction = if buffer.end_transaction(cx).is_some() {
4102 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4103 if !push_to_history {
4104 buffer.forget_transaction(transaction.id);
4105 }
4106 Some(transaction)
4107 } else {
4108 None
4109 };
4110
4111 transaction
4112 });
4113 if let Some(transaction) = transaction {
4114 project_transaction.0.insert(buffer_to_edit, transaction);
4115 }
4116 }
4117 }
4118 }
4119
4120 Ok(project_transaction)
4121 }
4122
4123 pub fn prepare_rename<T: ToPointUtf16>(
4124 &self,
4125 buffer: ModelHandle<Buffer>,
4126 position: T,
4127 cx: &mut ModelContext<Self>,
4128 ) -> Task<Result<Option<Range<Anchor>>>> {
4129 let position = position.to_point_utf16(buffer.read(cx));
4130 self.request_lsp(buffer, PrepareRename { position }, cx)
4131 }
4132
4133 pub fn perform_rename<T: ToPointUtf16>(
4134 &self,
4135 buffer: ModelHandle<Buffer>,
4136 position: T,
4137 new_name: String,
4138 push_to_history: bool,
4139 cx: &mut ModelContext<Self>,
4140 ) -> Task<Result<ProjectTransaction>> {
4141 let position = position.to_point_utf16(buffer.read(cx));
4142 self.request_lsp(
4143 buffer,
4144 PerformRename {
4145 position,
4146 new_name,
4147 push_to_history,
4148 },
4149 cx,
4150 )
4151 }
4152
4153 #[allow(clippy::type_complexity)]
4154 pub fn search(
4155 &self,
4156 query: SearchQuery,
4157 cx: &mut ModelContext<Self>,
4158 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
4159 if self.is_local() {
4160 let snapshots = self
4161 .visible_worktrees(cx)
4162 .filter_map(|tree| {
4163 let tree = tree.read(cx).as_local()?;
4164 Some(tree.snapshot())
4165 })
4166 .collect::<Vec<_>>();
4167
4168 let background = cx.background().clone();
4169 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
4170 if path_count == 0 {
4171 return Task::ready(Ok(Default::default()));
4172 }
4173 let workers = background.num_cpus().min(path_count);
4174 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
4175 cx.background()
4176 .spawn({
4177 let fs = self.fs.clone();
4178 let background = cx.background().clone();
4179 let query = query.clone();
4180 async move {
4181 let fs = &fs;
4182 let query = &query;
4183 let matching_paths_tx = &matching_paths_tx;
4184 let paths_per_worker = (path_count + workers - 1) / workers;
4185 let snapshots = &snapshots;
4186 background
4187 .scoped(|scope| {
4188 for worker_ix in 0..workers {
4189 let worker_start_ix = worker_ix * paths_per_worker;
4190 let worker_end_ix = worker_start_ix + paths_per_worker;
4191 scope.spawn(async move {
4192 let mut snapshot_start_ix = 0;
4193 let mut abs_path = PathBuf::new();
4194 for snapshot in snapshots {
4195 let snapshot_end_ix =
4196 snapshot_start_ix + snapshot.visible_file_count();
4197 if worker_end_ix <= snapshot_start_ix {
4198 break;
4199 } else if worker_start_ix > snapshot_end_ix {
4200 snapshot_start_ix = snapshot_end_ix;
4201 continue;
4202 } else {
4203 let start_in_snapshot = worker_start_ix
4204 .saturating_sub(snapshot_start_ix);
4205 let end_in_snapshot =
4206 cmp::min(worker_end_ix, snapshot_end_ix)
4207 - snapshot_start_ix;
4208
4209 for entry in snapshot
4210 .files(false, start_in_snapshot)
4211 .take(end_in_snapshot - start_in_snapshot)
4212 {
4213 if matching_paths_tx.is_closed() {
4214 break;
4215 }
4216
4217 abs_path.clear();
4218 abs_path.push(&snapshot.abs_path());
4219 abs_path.push(&entry.path);
4220 let matches = if let Some(file) =
4221 fs.open_sync(&abs_path).await.log_err()
4222 {
4223 query.detect(file).unwrap_or(false)
4224 } else {
4225 false
4226 };
4227
4228 if matches {
4229 let project_path =
4230 (snapshot.id(), entry.path.clone());
4231 if matching_paths_tx
4232 .send(project_path)
4233 .await
4234 .is_err()
4235 {
4236 break;
4237 }
4238 }
4239 }
4240
4241 snapshot_start_ix = snapshot_end_ix;
4242 }
4243 }
4244 });
4245 }
4246 })
4247 .await;
4248 }
4249 })
4250 .detach();
4251
4252 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
4253 let open_buffers = self
4254 .opened_buffers
4255 .values()
4256 .filter_map(|b| b.upgrade(cx))
4257 .collect::<HashSet<_>>();
4258 cx.spawn(|this, cx| async move {
4259 for buffer in &open_buffers {
4260 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4261 buffers_tx.send((buffer.clone(), snapshot)).await?;
4262 }
4263
4264 let open_buffers = Rc::new(RefCell::new(open_buffers));
4265 while let Some(project_path) = matching_paths_rx.next().await {
4266 if buffers_tx.is_closed() {
4267 break;
4268 }
4269
4270 let this = this.clone();
4271 let open_buffers = open_buffers.clone();
4272 let buffers_tx = buffers_tx.clone();
4273 cx.spawn(|mut cx| async move {
4274 if let Some(buffer) = this
4275 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
4276 .await
4277 .log_err()
4278 {
4279 if open_buffers.borrow_mut().insert(buffer.clone()) {
4280 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4281 buffers_tx.send((buffer, snapshot)).await?;
4282 }
4283 }
4284
4285 Ok::<_, anyhow::Error>(())
4286 })
4287 .detach();
4288 }
4289
4290 Ok::<_, anyhow::Error>(())
4291 })
4292 .detach_and_log_err(cx);
4293
4294 let background = cx.background().clone();
4295 cx.background().spawn(async move {
4296 let query = &query;
4297 let mut matched_buffers = Vec::new();
4298 for _ in 0..workers {
4299 matched_buffers.push(HashMap::default());
4300 }
4301 background
4302 .scoped(|scope| {
4303 for worker_matched_buffers in matched_buffers.iter_mut() {
4304 let mut buffers_rx = buffers_rx.clone();
4305 scope.spawn(async move {
4306 while let Some((buffer, snapshot)) = buffers_rx.next().await {
4307 let buffer_matches = query
4308 .search(snapshot.as_rope())
4309 .await
4310 .iter()
4311 .map(|range| {
4312 snapshot.anchor_before(range.start)
4313 ..snapshot.anchor_after(range.end)
4314 })
4315 .collect::<Vec<_>>();
4316 if !buffer_matches.is_empty() {
4317 worker_matched_buffers
4318 .insert(buffer.clone(), buffer_matches);
4319 }
4320 }
4321 });
4322 }
4323 })
4324 .await;
4325 Ok(matched_buffers.into_iter().flatten().collect())
4326 })
4327 } else if let Some(project_id) = self.remote_id() {
4328 let request = self.client.request(query.to_proto(project_id));
4329 cx.spawn(|this, mut cx| async move {
4330 let response = request.await?;
4331 let mut result = HashMap::default();
4332 for location in response.locations {
4333 let target_buffer = this
4334 .update(&mut cx, |this, cx| {
4335 this.wait_for_remote_buffer(location.buffer_id, cx)
4336 })
4337 .await?;
4338 let start = location
4339 .start
4340 .and_then(deserialize_anchor)
4341 .ok_or_else(|| anyhow!("missing target start"))?;
4342 let end = location
4343 .end
4344 .and_then(deserialize_anchor)
4345 .ok_or_else(|| anyhow!("missing target end"))?;
4346 result
4347 .entry(target_buffer)
4348 .or_insert(Vec::new())
4349 .push(start..end)
4350 }
4351 Ok(result)
4352 })
4353 } else {
4354 Task::ready(Ok(Default::default()))
4355 }
4356 }
4357
4358 // TODO: Wire this up to allow selecting a server?
4359 fn request_lsp<R: LspCommand>(
4360 &self,
4361 buffer_handle: ModelHandle<Buffer>,
4362 request: R,
4363 cx: &mut ModelContext<Self>,
4364 ) -> Task<Result<R::Response>>
4365 where
4366 <R::LspRequest as lsp::request::Request>::Result: Send,
4367 {
4368 let buffer = buffer_handle.read(cx);
4369 if self.is_local() {
4370 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
4371 if let Some((file, language_server)) = file.zip(
4372 self.primary_language_servers_for_buffer(buffer, cx)
4373 .map(|(_, server)| server.clone()),
4374 ) {
4375 let lsp_params = request.to_lsp(&file.abs_path(cx), buffer, &language_server, cx);
4376 return cx.spawn(|this, cx| async move {
4377 if !request.check_capabilities(language_server.capabilities()) {
4378 return Ok(Default::default());
4379 }
4380
4381 let response = language_server
4382 .request::<R::LspRequest>(lsp_params)
4383 .await
4384 .context("lsp request failed")?;
4385 request
4386 .response_from_lsp(
4387 response,
4388 this,
4389 buffer_handle,
4390 language_server.server_id(),
4391 cx,
4392 )
4393 .await
4394 });
4395 }
4396 } else if let Some(project_id) = self.remote_id() {
4397 let rpc = self.client.clone();
4398 let message = request.to_proto(project_id, buffer);
4399 return cx.spawn_weak(|this, cx| async move {
4400 // Ensure the project is still alive by the time the task
4401 // is scheduled.
4402 this.upgrade(&cx)
4403 .ok_or_else(|| anyhow!("project dropped"))?;
4404
4405 let response = rpc.request(message).await?;
4406
4407 let this = this
4408 .upgrade(&cx)
4409 .ok_or_else(|| anyhow!("project dropped"))?;
4410 if this.read_with(&cx, |this, _| this.is_read_only()) {
4411 Err(anyhow!("disconnected before completing request"))
4412 } else {
4413 request
4414 .response_from_proto(response, this, buffer_handle, cx)
4415 .await
4416 }
4417 });
4418 }
4419 Task::ready(Ok(Default::default()))
4420 }
4421
4422 pub fn find_or_create_local_worktree(
4423 &mut self,
4424 abs_path: impl AsRef<Path>,
4425 visible: bool,
4426 cx: &mut ModelContext<Self>,
4427 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
4428 let abs_path = abs_path.as_ref();
4429 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4430 Task::ready(Ok((tree, relative_path)))
4431 } else {
4432 let worktree = self.create_local_worktree(abs_path, visible, cx);
4433 cx.foreground()
4434 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4435 }
4436 }
4437
4438 pub fn find_local_worktree(
4439 &self,
4440 abs_path: &Path,
4441 cx: &AppContext,
4442 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4443 for tree in &self.worktrees {
4444 if let Some(tree) = tree.upgrade(cx) {
4445 if let Some(relative_path) = tree
4446 .read(cx)
4447 .as_local()
4448 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4449 {
4450 return Some((tree.clone(), relative_path.into()));
4451 }
4452 }
4453 }
4454 None
4455 }
4456
4457 pub fn is_shared(&self) -> bool {
4458 match &self.client_state {
4459 Some(ProjectClientState::Local { .. }) => true,
4460 _ => false,
4461 }
4462 }
4463
4464 fn create_local_worktree(
4465 &mut self,
4466 abs_path: impl AsRef<Path>,
4467 visible: bool,
4468 cx: &mut ModelContext<Self>,
4469 ) -> Task<Result<ModelHandle<Worktree>>> {
4470 let fs = self.fs.clone();
4471 let client = self.client.clone();
4472 let next_entry_id = self.next_entry_id.clone();
4473 let path: Arc<Path> = abs_path.as_ref().into();
4474 let task = self
4475 .loading_local_worktrees
4476 .entry(path.clone())
4477 .or_insert_with(|| {
4478 cx.spawn(|project, mut cx| {
4479 async move {
4480 let worktree = Worktree::local(
4481 client.clone(),
4482 path.clone(),
4483 visible,
4484 fs,
4485 next_entry_id,
4486 &mut cx,
4487 )
4488 .await;
4489
4490 project.update(&mut cx, |project, _| {
4491 project.loading_local_worktrees.remove(&path);
4492 });
4493
4494 let worktree = worktree?;
4495 project.update(&mut cx, |project, cx| project.add_worktree(&worktree, cx));
4496 Ok(worktree)
4497 }
4498 .map_err(Arc::new)
4499 })
4500 .shared()
4501 })
4502 .clone();
4503 cx.foreground().spawn(async move {
4504 match task.await {
4505 Ok(worktree) => Ok(worktree),
4506 Err(err) => Err(anyhow!("{}", err)),
4507 }
4508 })
4509 }
4510
4511 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4512 self.worktrees.retain(|worktree| {
4513 if let Some(worktree) = worktree.upgrade(cx) {
4514 let id = worktree.read(cx).id();
4515 if id == id_to_remove {
4516 cx.emit(Event::WorktreeRemoved(id));
4517 false
4518 } else {
4519 true
4520 }
4521 } else {
4522 false
4523 }
4524 });
4525 self.metadata_changed(cx);
4526 }
4527
4528 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4529 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
4530 if worktree.read(cx).is_local() {
4531 cx.subscribe(worktree, |this, worktree, event, cx| match event {
4532 worktree::Event::UpdatedEntries(changes) => {
4533 this.update_local_worktree_buffers(&worktree, cx);
4534 this.update_local_worktree_language_servers(&worktree, changes, cx);
4535 }
4536 worktree::Event::UpdatedGitRepositories(updated_repos) => {
4537 this.update_local_worktree_buffers_git_repos(worktree, updated_repos, cx)
4538 }
4539 })
4540 .detach();
4541 }
4542
4543 let push_strong_handle = {
4544 let worktree = worktree.read(cx);
4545 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4546 };
4547 if push_strong_handle {
4548 self.worktrees
4549 .push(WorktreeHandle::Strong(worktree.clone()));
4550 } else {
4551 self.worktrees
4552 .push(WorktreeHandle::Weak(worktree.downgrade()));
4553 }
4554
4555 cx.observe_release(worktree, |this, worktree, cx| {
4556 let _ = this.remove_worktree(worktree.id(), cx);
4557 })
4558 .detach();
4559
4560 cx.emit(Event::WorktreeAdded);
4561 self.metadata_changed(cx);
4562 }
4563
4564 fn update_local_worktree_buffers(
4565 &mut self,
4566 worktree_handle: &ModelHandle<Worktree>,
4567 cx: &mut ModelContext<Self>,
4568 ) {
4569 let snapshot = worktree_handle.read(cx).snapshot();
4570
4571 let mut buffers_to_delete = Vec::new();
4572 let mut renamed_buffers = Vec::new();
4573
4574 for (buffer_id, buffer) in &self.opened_buffers {
4575 if let Some(buffer) = buffer.upgrade(cx) {
4576 buffer.update(cx, |buffer, cx| {
4577 if let Some(old_file) = File::from_dyn(buffer.file()) {
4578 if old_file.worktree != *worktree_handle {
4579 return;
4580 }
4581
4582 let new_file = if let Some(entry) = snapshot.entry_for_id(old_file.entry_id)
4583 {
4584 File {
4585 is_local: true,
4586 entry_id: entry.id,
4587 mtime: entry.mtime,
4588 path: entry.path.clone(),
4589 worktree: worktree_handle.clone(),
4590 is_deleted: false,
4591 }
4592 } else if let Some(entry) =
4593 snapshot.entry_for_path(old_file.path().as_ref())
4594 {
4595 File {
4596 is_local: true,
4597 entry_id: entry.id,
4598 mtime: entry.mtime,
4599 path: entry.path.clone(),
4600 worktree: worktree_handle.clone(),
4601 is_deleted: false,
4602 }
4603 } else {
4604 File {
4605 is_local: true,
4606 entry_id: old_file.entry_id,
4607 path: old_file.path().clone(),
4608 mtime: old_file.mtime(),
4609 worktree: worktree_handle.clone(),
4610 is_deleted: true,
4611 }
4612 };
4613
4614 let old_path = old_file.abs_path(cx);
4615 if new_file.abs_path(cx) != old_path {
4616 renamed_buffers.push((cx.handle(), old_file.clone()));
4617 }
4618
4619 if new_file != *old_file {
4620 if let Some(project_id) = self.remote_id() {
4621 self.client
4622 .send(proto::UpdateBufferFile {
4623 project_id,
4624 buffer_id: *buffer_id as u64,
4625 file: Some(new_file.to_proto()),
4626 })
4627 .log_err();
4628 }
4629
4630 buffer.file_updated(Arc::new(new_file), cx).detach();
4631 }
4632 }
4633 });
4634 } else {
4635 buffers_to_delete.push(*buffer_id);
4636 }
4637 }
4638
4639 for buffer_id in buffers_to_delete {
4640 self.opened_buffers.remove(&buffer_id);
4641 }
4642
4643 for (buffer, old_file) in renamed_buffers {
4644 self.unregister_buffer_from_language_servers(&buffer, &old_file, cx);
4645 self.detect_language_for_buffer(&buffer, cx);
4646 self.register_buffer_with_language_servers(&buffer, cx);
4647 }
4648 }
4649
4650 fn update_local_worktree_language_servers(
4651 &mut self,
4652 worktree_handle: &ModelHandle<Worktree>,
4653 changes: &HashMap<Arc<Path>, PathChange>,
4654 cx: &mut ModelContext<Self>,
4655 ) {
4656 let worktree_id = worktree_handle.read(cx).id();
4657 let abs_path = worktree_handle.read(cx).abs_path();
4658 for ((server_worktree_id, _), server_id) in &self.language_server_ids {
4659 if *server_worktree_id == worktree_id {
4660 if let Some(server) = self.language_servers.get(server_id) {
4661 if let LanguageServerState::Running {
4662 server,
4663 watched_paths,
4664 ..
4665 } = server
4666 {
4667 let params = lsp::DidChangeWatchedFilesParams {
4668 changes: changes
4669 .iter()
4670 .filter_map(|(path, change)| {
4671 let path = abs_path.join(path);
4672 if watched_paths.matches(&path) {
4673 Some(lsp::FileEvent {
4674 uri: lsp::Url::from_file_path(path).unwrap(),
4675 typ: match change {
4676 PathChange::Added => lsp::FileChangeType::CREATED,
4677 PathChange::Removed => lsp::FileChangeType::DELETED,
4678 PathChange::Updated
4679 | PathChange::AddedOrUpdated => {
4680 lsp::FileChangeType::CHANGED
4681 }
4682 },
4683 })
4684 } else {
4685 None
4686 }
4687 })
4688 .collect(),
4689 };
4690
4691 if !params.changes.is_empty() {
4692 server
4693 .notify::<lsp::notification::DidChangeWatchedFiles>(params)
4694 .log_err();
4695 }
4696 }
4697 }
4698 }
4699 }
4700 }
4701
4702 fn update_local_worktree_buffers_git_repos(
4703 &mut self,
4704 worktree: ModelHandle<Worktree>,
4705 repos: &[GitRepositoryEntry],
4706 cx: &mut ModelContext<Self>,
4707 ) {
4708 for (_, buffer) in &self.opened_buffers {
4709 if let Some(buffer) = buffer.upgrade(cx) {
4710 let file = match File::from_dyn(buffer.read(cx).file()) {
4711 Some(file) => file,
4712 None => continue,
4713 };
4714 if file.worktree != worktree {
4715 continue;
4716 }
4717
4718 let path = file.path().clone();
4719
4720 let repo = match repos.iter().find(|repo| repo.manages(&path)) {
4721 Some(repo) => repo.clone(),
4722 None => return,
4723 };
4724
4725 let relative_repo = match path.strip_prefix(repo.content_path) {
4726 Ok(relative_repo) => relative_repo.to_owned(),
4727 Err(_) => return,
4728 };
4729
4730 let remote_id = self.remote_id();
4731 let client = self.client.clone();
4732
4733 cx.spawn(|_, mut cx| async move {
4734 let diff_base = cx
4735 .background()
4736 .spawn(async move { repo.repo.lock().load_index_text(&relative_repo) })
4737 .await;
4738
4739 let buffer_id = buffer.update(&mut cx, |buffer, cx| {
4740 buffer.set_diff_base(diff_base.clone(), cx);
4741 buffer.remote_id()
4742 });
4743
4744 if let Some(project_id) = remote_id {
4745 client
4746 .send(proto::UpdateDiffBase {
4747 project_id,
4748 buffer_id: buffer_id as u64,
4749 diff_base,
4750 })
4751 .log_err();
4752 }
4753 })
4754 .detach();
4755 }
4756 }
4757 }
4758
4759 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
4760 let new_active_entry = entry.and_then(|project_path| {
4761 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
4762 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
4763 Some(entry.id)
4764 });
4765 if new_active_entry != self.active_entry {
4766 self.active_entry = new_active_entry;
4767 cx.emit(Event::ActiveEntryChanged(new_active_entry));
4768 }
4769 }
4770
4771 pub fn language_servers_running_disk_based_diagnostics(
4772 &self,
4773 ) -> impl Iterator<Item = LanguageServerId> + '_ {
4774 self.language_server_statuses
4775 .iter()
4776 .filter_map(|(id, status)| {
4777 if status.has_pending_diagnostic_updates {
4778 Some(*id)
4779 } else {
4780 None
4781 }
4782 })
4783 }
4784
4785 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
4786 let mut summary = DiagnosticSummary::default();
4787 for (_, _, path_summary) in self.diagnostic_summaries(cx) {
4788 summary.error_count += path_summary.error_count;
4789 summary.warning_count += path_summary.warning_count;
4790 }
4791 summary
4792 }
4793
4794 pub fn diagnostic_summaries<'a>(
4795 &'a self,
4796 cx: &'a AppContext,
4797 ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
4798 self.visible_worktrees(cx).flat_map(move |worktree| {
4799 let worktree = worktree.read(cx);
4800 let worktree_id = worktree.id();
4801 worktree
4802 .diagnostic_summaries()
4803 .map(move |(path, server_id, summary)| {
4804 (ProjectPath { worktree_id, path }, server_id, summary)
4805 })
4806 })
4807 }
4808
4809 pub fn disk_based_diagnostics_started(
4810 &mut self,
4811 language_server_id: LanguageServerId,
4812 cx: &mut ModelContext<Self>,
4813 ) {
4814 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
4815 }
4816
4817 pub fn disk_based_diagnostics_finished(
4818 &mut self,
4819 language_server_id: LanguageServerId,
4820 cx: &mut ModelContext<Self>,
4821 ) {
4822 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
4823 }
4824
4825 pub fn active_entry(&self) -> Option<ProjectEntryId> {
4826 self.active_entry
4827 }
4828
4829 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
4830 self.worktree_for_id(path.worktree_id, cx)?
4831 .read(cx)
4832 .entry_for_path(&path.path)
4833 .cloned()
4834 }
4835
4836 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
4837 let worktree = self.worktree_for_entry(entry_id, cx)?;
4838 let worktree = worktree.read(cx);
4839 let worktree_id = worktree.id();
4840 let path = worktree.entry_for_id(entry_id)?.path.clone();
4841 Some(ProjectPath { worktree_id, path })
4842 }
4843
4844 // RPC message handlers
4845
4846 async fn handle_unshare_project(
4847 this: ModelHandle<Self>,
4848 _: TypedEnvelope<proto::UnshareProject>,
4849 _: Arc<Client>,
4850 mut cx: AsyncAppContext,
4851 ) -> Result<()> {
4852 this.update(&mut cx, |this, cx| {
4853 if this.is_local() {
4854 this.unshare(cx)?;
4855 } else {
4856 this.disconnected_from_host(cx);
4857 }
4858 Ok(())
4859 })
4860 }
4861
4862 async fn handle_add_collaborator(
4863 this: ModelHandle<Self>,
4864 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
4865 _: Arc<Client>,
4866 mut cx: AsyncAppContext,
4867 ) -> Result<()> {
4868 let collaborator = envelope
4869 .payload
4870 .collaborator
4871 .take()
4872 .ok_or_else(|| anyhow!("empty collaborator"))?;
4873
4874 let collaborator = Collaborator::from_proto(collaborator)?;
4875 this.update(&mut cx, |this, cx| {
4876 this.shared_buffers.remove(&collaborator.peer_id);
4877 this.collaborators
4878 .insert(collaborator.peer_id, collaborator);
4879 cx.notify();
4880 });
4881
4882 Ok(())
4883 }
4884
4885 async fn handle_update_project_collaborator(
4886 this: ModelHandle<Self>,
4887 envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
4888 _: Arc<Client>,
4889 mut cx: AsyncAppContext,
4890 ) -> Result<()> {
4891 let old_peer_id = envelope
4892 .payload
4893 .old_peer_id
4894 .ok_or_else(|| anyhow!("missing old peer id"))?;
4895 let new_peer_id = envelope
4896 .payload
4897 .new_peer_id
4898 .ok_or_else(|| anyhow!("missing new peer id"))?;
4899 this.update(&mut cx, |this, cx| {
4900 let collaborator = this
4901 .collaborators
4902 .remove(&old_peer_id)
4903 .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
4904 let is_host = collaborator.replica_id == 0;
4905 this.collaborators.insert(new_peer_id, collaborator);
4906
4907 let buffers = this.shared_buffers.remove(&old_peer_id);
4908 log::info!(
4909 "peer {} became {}. moving buffers {:?}",
4910 old_peer_id,
4911 new_peer_id,
4912 &buffers
4913 );
4914 if let Some(buffers) = buffers {
4915 this.shared_buffers.insert(new_peer_id, buffers);
4916 }
4917
4918 if is_host {
4919 this.opened_buffers
4920 .retain(|_, buffer| !matches!(buffer, OpenBuffer::Operations(_)));
4921 this.buffer_ordered_messages_tx
4922 .unbounded_send(BufferOrderedMessage::Resync)
4923 .unwrap();
4924 }
4925
4926 cx.emit(Event::CollaboratorUpdated {
4927 old_peer_id,
4928 new_peer_id,
4929 });
4930 cx.notify();
4931 Ok(())
4932 })
4933 }
4934
4935 async fn handle_remove_collaborator(
4936 this: ModelHandle<Self>,
4937 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
4938 _: Arc<Client>,
4939 mut cx: AsyncAppContext,
4940 ) -> Result<()> {
4941 this.update(&mut cx, |this, cx| {
4942 let peer_id = envelope
4943 .payload
4944 .peer_id
4945 .ok_or_else(|| anyhow!("invalid peer id"))?;
4946 let replica_id = this
4947 .collaborators
4948 .remove(&peer_id)
4949 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
4950 .replica_id;
4951 for buffer in this.opened_buffers.values() {
4952 if let Some(buffer) = buffer.upgrade(cx) {
4953 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
4954 }
4955 }
4956 this.shared_buffers.remove(&peer_id);
4957
4958 cx.emit(Event::CollaboratorLeft(peer_id));
4959 cx.notify();
4960 Ok(())
4961 })
4962 }
4963
4964 async fn handle_update_project(
4965 this: ModelHandle<Self>,
4966 envelope: TypedEnvelope<proto::UpdateProject>,
4967 _: Arc<Client>,
4968 mut cx: AsyncAppContext,
4969 ) -> Result<()> {
4970 this.update(&mut cx, |this, cx| {
4971 // Don't handle messages that were sent before the response to us joining the project
4972 if envelope.message_id > this.join_project_response_message_id {
4973 this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
4974 }
4975 Ok(())
4976 })
4977 }
4978
4979 async fn handle_update_worktree(
4980 this: ModelHandle<Self>,
4981 envelope: TypedEnvelope<proto::UpdateWorktree>,
4982 _: Arc<Client>,
4983 mut cx: AsyncAppContext,
4984 ) -> Result<()> {
4985 this.update(&mut cx, |this, cx| {
4986 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4987 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4988 worktree.update(cx, |worktree, _| {
4989 let worktree = worktree.as_remote_mut().unwrap();
4990 worktree.update_from_remote(envelope.payload);
4991 });
4992 }
4993 Ok(())
4994 })
4995 }
4996
4997 async fn handle_create_project_entry(
4998 this: ModelHandle<Self>,
4999 envelope: TypedEnvelope<proto::CreateProjectEntry>,
5000 _: Arc<Client>,
5001 mut cx: AsyncAppContext,
5002 ) -> Result<proto::ProjectEntryResponse> {
5003 let worktree = this.update(&mut cx, |this, cx| {
5004 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5005 this.worktree_for_id(worktree_id, cx)
5006 .ok_or_else(|| anyhow!("worktree not found"))
5007 })?;
5008 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5009 let entry = worktree
5010 .update(&mut cx, |worktree, cx| {
5011 let worktree = worktree.as_local_mut().unwrap();
5012 let path = PathBuf::from(envelope.payload.path);
5013 worktree.create_entry(path, envelope.payload.is_directory, cx)
5014 })
5015 .await?;
5016 Ok(proto::ProjectEntryResponse {
5017 entry: Some((&entry).into()),
5018 worktree_scan_id: worktree_scan_id as u64,
5019 })
5020 }
5021
5022 async fn handle_rename_project_entry(
5023 this: ModelHandle<Self>,
5024 envelope: TypedEnvelope<proto::RenameProjectEntry>,
5025 _: Arc<Client>,
5026 mut cx: AsyncAppContext,
5027 ) -> Result<proto::ProjectEntryResponse> {
5028 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5029 let worktree = this.read_with(&cx, |this, cx| {
5030 this.worktree_for_entry(entry_id, cx)
5031 .ok_or_else(|| anyhow!("worktree not found"))
5032 })?;
5033 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5034 let entry = worktree
5035 .update(&mut cx, |worktree, cx| {
5036 let new_path = PathBuf::from(envelope.payload.new_path);
5037 worktree
5038 .as_local_mut()
5039 .unwrap()
5040 .rename_entry(entry_id, new_path, cx)
5041 .ok_or_else(|| anyhow!("invalid entry"))
5042 })?
5043 .await?;
5044 Ok(proto::ProjectEntryResponse {
5045 entry: Some((&entry).into()),
5046 worktree_scan_id: worktree_scan_id as u64,
5047 })
5048 }
5049
5050 async fn handle_copy_project_entry(
5051 this: ModelHandle<Self>,
5052 envelope: TypedEnvelope<proto::CopyProjectEntry>,
5053 _: Arc<Client>,
5054 mut cx: AsyncAppContext,
5055 ) -> Result<proto::ProjectEntryResponse> {
5056 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5057 let worktree = this.read_with(&cx, |this, cx| {
5058 this.worktree_for_entry(entry_id, cx)
5059 .ok_or_else(|| anyhow!("worktree not found"))
5060 })?;
5061 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5062 let entry = worktree
5063 .update(&mut cx, |worktree, cx| {
5064 let new_path = PathBuf::from(envelope.payload.new_path);
5065 worktree
5066 .as_local_mut()
5067 .unwrap()
5068 .copy_entry(entry_id, new_path, cx)
5069 .ok_or_else(|| anyhow!("invalid entry"))
5070 })?
5071 .await?;
5072 Ok(proto::ProjectEntryResponse {
5073 entry: Some((&entry).into()),
5074 worktree_scan_id: worktree_scan_id as u64,
5075 })
5076 }
5077
5078 async fn handle_delete_project_entry(
5079 this: ModelHandle<Self>,
5080 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
5081 _: Arc<Client>,
5082 mut cx: AsyncAppContext,
5083 ) -> Result<proto::ProjectEntryResponse> {
5084 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5085 let worktree = this.read_with(&cx, |this, cx| {
5086 this.worktree_for_entry(entry_id, cx)
5087 .ok_or_else(|| anyhow!("worktree not found"))
5088 })?;
5089 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5090 worktree
5091 .update(&mut cx, |worktree, cx| {
5092 worktree
5093 .as_local_mut()
5094 .unwrap()
5095 .delete_entry(entry_id, cx)
5096 .ok_or_else(|| anyhow!("invalid entry"))
5097 })?
5098 .await?;
5099 Ok(proto::ProjectEntryResponse {
5100 entry: None,
5101 worktree_scan_id: worktree_scan_id as u64,
5102 })
5103 }
5104
5105 async fn handle_update_diagnostic_summary(
5106 this: ModelHandle<Self>,
5107 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
5108 _: Arc<Client>,
5109 mut cx: AsyncAppContext,
5110 ) -> Result<()> {
5111 this.update(&mut cx, |this, cx| {
5112 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5113 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5114 if let Some(summary) = envelope.payload.summary {
5115 let project_path = ProjectPath {
5116 worktree_id,
5117 path: Path::new(&summary.path).into(),
5118 };
5119 worktree.update(cx, |worktree, _| {
5120 worktree
5121 .as_remote_mut()
5122 .unwrap()
5123 .update_diagnostic_summary(project_path.path.clone(), &summary);
5124 });
5125 cx.emit(Event::DiagnosticsUpdated {
5126 language_server_id: LanguageServerId(summary.language_server_id as usize),
5127 path: project_path,
5128 });
5129 }
5130 }
5131 Ok(())
5132 })
5133 }
5134
5135 async fn handle_start_language_server(
5136 this: ModelHandle<Self>,
5137 envelope: TypedEnvelope<proto::StartLanguageServer>,
5138 _: Arc<Client>,
5139 mut cx: AsyncAppContext,
5140 ) -> Result<()> {
5141 let server = envelope
5142 .payload
5143 .server
5144 .ok_or_else(|| anyhow!("invalid server"))?;
5145 this.update(&mut cx, |this, cx| {
5146 this.language_server_statuses.insert(
5147 LanguageServerId(server.id as usize),
5148 LanguageServerStatus {
5149 name: server.name,
5150 pending_work: Default::default(),
5151 has_pending_diagnostic_updates: false,
5152 progress_tokens: Default::default(),
5153 },
5154 );
5155 cx.notify();
5156 });
5157 Ok(())
5158 }
5159
5160 async fn handle_update_language_server(
5161 this: ModelHandle<Self>,
5162 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
5163 _: Arc<Client>,
5164 mut cx: AsyncAppContext,
5165 ) -> Result<()> {
5166 this.update(&mut cx, |this, cx| {
5167 let language_server_id = LanguageServerId(envelope.payload.language_server_id as usize);
5168
5169 match envelope
5170 .payload
5171 .variant
5172 .ok_or_else(|| anyhow!("invalid variant"))?
5173 {
5174 proto::update_language_server::Variant::WorkStart(payload) => {
5175 this.on_lsp_work_start(
5176 language_server_id,
5177 payload.token,
5178 LanguageServerProgress {
5179 message: payload.message,
5180 percentage: payload.percentage.map(|p| p as usize),
5181 last_update_at: Instant::now(),
5182 },
5183 cx,
5184 );
5185 }
5186
5187 proto::update_language_server::Variant::WorkProgress(payload) => {
5188 this.on_lsp_work_progress(
5189 language_server_id,
5190 payload.token,
5191 LanguageServerProgress {
5192 message: payload.message,
5193 percentage: payload.percentage.map(|p| p as usize),
5194 last_update_at: Instant::now(),
5195 },
5196 cx,
5197 );
5198 }
5199
5200 proto::update_language_server::Variant::WorkEnd(payload) => {
5201 this.on_lsp_work_end(language_server_id, payload.token, cx);
5202 }
5203
5204 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
5205 this.disk_based_diagnostics_started(language_server_id, cx);
5206 }
5207
5208 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
5209 this.disk_based_diagnostics_finished(language_server_id, cx)
5210 }
5211 }
5212
5213 Ok(())
5214 })
5215 }
5216
5217 async fn handle_update_buffer(
5218 this: ModelHandle<Self>,
5219 envelope: TypedEnvelope<proto::UpdateBuffer>,
5220 _: Arc<Client>,
5221 mut cx: AsyncAppContext,
5222 ) -> Result<proto::Ack> {
5223 this.update(&mut cx, |this, cx| {
5224 let payload = envelope.payload.clone();
5225 let buffer_id = payload.buffer_id;
5226 let ops = payload
5227 .operations
5228 .into_iter()
5229 .map(language::proto::deserialize_operation)
5230 .collect::<Result<Vec<_>, _>>()?;
5231 let is_remote = this.is_remote();
5232 match this.opened_buffers.entry(buffer_id) {
5233 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
5234 OpenBuffer::Strong(buffer) => {
5235 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
5236 }
5237 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
5238 OpenBuffer::Weak(_) => {}
5239 },
5240 hash_map::Entry::Vacant(e) => {
5241 assert!(
5242 is_remote,
5243 "received buffer update from {:?}",
5244 envelope.original_sender_id
5245 );
5246 e.insert(OpenBuffer::Operations(ops));
5247 }
5248 }
5249 Ok(proto::Ack {})
5250 })
5251 }
5252
5253 async fn handle_create_buffer_for_peer(
5254 this: ModelHandle<Self>,
5255 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
5256 _: Arc<Client>,
5257 mut cx: AsyncAppContext,
5258 ) -> Result<()> {
5259 this.update(&mut cx, |this, cx| {
5260 match envelope
5261 .payload
5262 .variant
5263 .ok_or_else(|| anyhow!("missing variant"))?
5264 {
5265 proto::create_buffer_for_peer::Variant::State(mut state) => {
5266 let mut buffer_file = None;
5267 if let Some(file) = state.file.take() {
5268 let worktree_id = WorktreeId::from_proto(file.worktree_id);
5269 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
5270 anyhow!("no worktree found for id {}", file.worktree_id)
5271 })?;
5272 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
5273 as Arc<dyn language::File>);
5274 }
5275
5276 let buffer_id = state.id;
5277 let buffer = cx.add_model(|_| {
5278 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
5279 });
5280 this.incomplete_remote_buffers
5281 .insert(buffer_id, Some(buffer));
5282 }
5283 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
5284 let buffer = this
5285 .incomplete_remote_buffers
5286 .get(&chunk.buffer_id)
5287 .cloned()
5288 .flatten()
5289 .ok_or_else(|| {
5290 anyhow!(
5291 "received chunk for buffer {} without initial state",
5292 chunk.buffer_id
5293 )
5294 })?;
5295 let operations = chunk
5296 .operations
5297 .into_iter()
5298 .map(language::proto::deserialize_operation)
5299 .collect::<Result<Vec<_>>>()?;
5300 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
5301
5302 if chunk.is_last {
5303 this.incomplete_remote_buffers.remove(&chunk.buffer_id);
5304 this.register_buffer(&buffer, cx)?;
5305 }
5306 }
5307 }
5308
5309 Ok(())
5310 })
5311 }
5312
5313 async fn handle_update_diff_base(
5314 this: ModelHandle<Self>,
5315 envelope: TypedEnvelope<proto::UpdateDiffBase>,
5316 _: Arc<Client>,
5317 mut cx: AsyncAppContext,
5318 ) -> Result<()> {
5319 this.update(&mut cx, |this, cx| {
5320 let buffer_id = envelope.payload.buffer_id;
5321 let diff_base = envelope.payload.diff_base;
5322 if let Some(buffer) = this
5323 .opened_buffers
5324 .get_mut(&buffer_id)
5325 .and_then(|b| b.upgrade(cx))
5326 .or_else(|| {
5327 this.incomplete_remote_buffers
5328 .get(&buffer_id)
5329 .cloned()
5330 .flatten()
5331 })
5332 {
5333 buffer.update(cx, |buffer, cx| buffer.set_diff_base(diff_base, cx));
5334 }
5335 Ok(())
5336 })
5337 }
5338
5339 async fn handle_update_buffer_file(
5340 this: ModelHandle<Self>,
5341 envelope: TypedEnvelope<proto::UpdateBufferFile>,
5342 _: Arc<Client>,
5343 mut cx: AsyncAppContext,
5344 ) -> Result<()> {
5345 let buffer_id = envelope.payload.buffer_id;
5346
5347 this.update(&mut cx, |this, cx| {
5348 let payload = envelope.payload.clone();
5349 if let Some(buffer) = this
5350 .opened_buffers
5351 .get(&buffer_id)
5352 .and_then(|b| b.upgrade(cx))
5353 .or_else(|| {
5354 this.incomplete_remote_buffers
5355 .get(&buffer_id)
5356 .cloned()
5357 .flatten()
5358 })
5359 {
5360 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
5361 let worktree = this
5362 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
5363 .ok_or_else(|| anyhow!("no such worktree"))?;
5364 let file = File::from_proto(file, worktree, cx)?;
5365 buffer.update(cx, |buffer, cx| {
5366 buffer.file_updated(Arc::new(file), cx).detach();
5367 });
5368 this.detect_language_for_buffer(&buffer, cx);
5369 }
5370 Ok(())
5371 })
5372 }
5373
5374 async fn handle_save_buffer(
5375 this: ModelHandle<Self>,
5376 envelope: TypedEnvelope<proto::SaveBuffer>,
5377 _: Arc<Client>,
5378 mut cx: AsyncAppContext,
5379 ) -> Result<proto::BufferSaved> {
5380 let buffer_id = envelope.payload.buffer_id;
5381 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
5382 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
5383 let buffer = this
5384 .opened_buffers
5385 .get(&buffer_id)
5386 .and_then(|buffer| buffer.upgrade(cx))
5387 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
5388 anyhow::Ok((project_id, buffer))
5389 })?;
5390 buffer
5391 .update(&mut cx, |buffer, _| {
5392 buffer.wait_for_version(deserialize_version(&envelope.payload.version))
5393 })
5394 .await?;
5395 let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
5396
5397 let (saved_version, fingerprint, mtime) = this
5398 .update(&mut cx, |this, cx| this.save_buffer(buffer, cx))
5399 .await?;
5400 Ok(proto::BufferSaved {
5401 project_id,
5402 buffer_id,
5403 version: serialize_version(&saved_version),
5404 mtime: Some(mtime.into()),
5405 fingerprint: language::proto::serialize_fingerprint(fingerprint),
5406 })
5407 }
5408
5409 async fn handle_reload_buffers(
5410 this: ModelHandle<Self>,
5411 envelope: TypedEnvelope<proto::ReloadBuffers>,
5412 _: Arc<Client>,
5413 mut cx: AsyncAppContext,
5414 ) -> Result<proto::ReloadBuffersResponse> {
5415 let sender_id = envelope.original_sender_id()?;
5416 let reload = this.update(&mut cx, |this, cx| {
5417 let mut buffers = HashSet::default();
5418 for buffer_id in &envelope.payload.buffer_ids {
5419 buffers.insert(
5420 this.opened_buffers
5421 .get(buffer_id)
5422 .and_then(|buffer| buffer.upgrade(cx))
5423 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5424 );
5425 }
5426 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
5427 })?;
5428
5429 let project_transaction = reload.await?;
5430 let project_transaction = this.update(&mut cx, |this, cx| {
5431 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5432 });
5433 Ok(proto::ReloadBuffersResponse {
5434 transaction: Some(project_transaction),
5435 })
5436 }
5437
5438 async fn handle_synchronize_buffers(
5439 this: ModelHandle<Self>,
5440 envelope: TypedEnvelope<proto::SynchronizeBuffers>,
5441 _: Arc<Client>,
5442 mut cx: AsyncAppContext,
5443 ) -> Result<proto::SynchronizeBuffersResponse> {
5444 let project_id = envelope.payload.project_id;
5445 let mut response = proto::SynchronizeBuffersResponse {
5446 buffers: Default::default(),
5447 };
5448
5449 this.update(&mut cx, |this, cx| {
5450 let Some(guest_id) = envelope.original_sender_id else {
5451 log::error!("missing original_sender_id on SynchronizeBuffers request");
5452 return;
5453 };
5454
5455 this.shared_buffers.entry(guest_id).or_default().clear();
5456 for buffer in envelope.payload.buffers {
5457 let buffer_id = buffer.id;
5458 let remote_version = language::proto::deserialize_version(&buffer.version);
5459 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
5460 this.shared_buffers
5461 .entry(guest_id)
5462 .or_default()
5463 .insert(buffer_id);
5464
5465 let buffer = buffer.read(cx);
5466 response.buffers.push(proto::BufferVersion {
5467 id: buffer_id,
5468 version: language::proto::serialize_version(&buffer.version),
5469 });
5470
5471 let operations = buffer.serialize_ops(Some(remote_version), cx);
5472 let client = this.client.clone();
5473 if let Some(file) = buffer.file() {
5474 client
5475 .send(proto::UpdateBufferFile {
5476 project_id,
5477 buffer_id: buffer_id as u64,
5478 file: Some(file.to_proto()),
5479 })
5480 .log_err();
5481 }
5482
5483 client
5484 .send(proto::UpdateDiffBase {
5485 project_id,
5486 buffer_id: buffer_id as u64,
5487 diff_base: buffer.diff_base().map(Into::into),
5488 })
5489 .log_err();
5490
5491 client
5492 .send(proto::BufferReloaded {
5493 project_id,
5494 buffer_id,
5495 version: language::proto::serialize_version(buffer.saved_version()),
5496 mtime: Some(buffer.saved_mtime().into()),
5497 fingerprint: language::proto::serialize_fingerprint(
5498 buffer.saved_version_fingerprint(),
5499 ),
5500 line_ending: language::proto::serialize_line_ending(
5501 buffer.line_ending(),
5502 ) as i32,
5503 })
5504 .log_err();
5505
5506 cx.background()
5507 .spawn(
5508 async move {
5509 let operations = operations.await;
5510 for chunk in split_operations(operations) {
5511 client
5512 .request(proto::UpdateBuffer {
5513 project_id,
5514 buffer_id,
5515 operations: chunk,
5516 })
5517 .await?;
5518 }
5519 anyhow::Ok(())
5520 }
5521 .log_err(),
5522 )
5523 .detach();
5524 }
5525 }
5526 });
5527
5528 Ok(response)
5529 }
5530
5531 async fn handle_format_buffers(
5532 this: ModelHandle<Self>,
5533 envelope: TypedEnvelope<proto::FormatBuffers>,
5534 _: Arc<Client>,
5535 mut cx: AsyncAppContext,
5536 ) -> Result<proto::FormatBuffersResponse> {
5537 let sender_id = envelope.original_sender_id()?;
5538 let format = this.update(&mut cx, |this, cx| {
5539 let mut buffers = HashSet::default();
5540 for buffer_id in &envelope.payload.buffer_ids {
5541 buffers.insert(
5542 this.opened_buffers
5543 .get(buffer_id)
5544 .and_then(|buffer| buffer.upgrade(cx))
5545 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5546 );
5547 }
5548 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
5549 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
5550 })?;
5551
5552 let project_transaction = format.await?;
5553 let project_transaction = this.update(&mut cx, |this, cx| {
5554 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5555 });
5556 Ok(proto::FormatBuffersResponse {
5557 transaction: Some(project_transaction),
5558 })
5559 }
5560
5561 async fn handle_apply_additional_edits_for_completion(
5562 this: ModelHandle<Self>,
5563 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
5564 _: Arc<Client>,
5565 mut cx: AsyncAppContext,
5566 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
5567 let (buffer, completion) = this.update(&mut cx, |this, cx| {
5568 let buffer = this
5569 .opened_buffers
5570 .get(&envelope.payload.buffer_id)
5571 .and_then(|buffer| buffer.upgrade(cx))
5572 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5573 let language = buffer.read(cx).language();
5574 let completion = language::proto::deserialize_completion(
5575 envelope
5576 .payload
5577 .completion
5578 .ok_or_else(|| anyhow!("invalid completion"))?,
5579 language.cloned(),
5580 );
5581 Ok::<_, anyhow::Error>((buffer, completion))
5582 })?;
5583
5584 let completion = completion.await?;
5585
5586 let apply_additional_edits = this.update(&mut cx, |this, cx| {
5587 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
5588 });
5589
5590 Ok(proto::ApplyCompletionAdditionalEditsResponse {
5591 transaction: apply_additional_edits
5592 .await?
5593 .as_ref()
5594 .map(language::proto::serialize_transaction),
5595 })
5596 }
5597
5598 async fn handle_apply_code_action(
5599 this: ModelHandle<Self>,
5600 envelope: TypedEnvelope<proto::ApplyCodeAction>,
5601 _: Arc<Client>,
5602 mut cx: AsyncAppContext,
5603 ) -> Result<proto::ApplyCodeActionResponse> {
5604 let sender_id = envelope.original_sender_id()?;
5605 let action = language::proto::deserialize_code_action(
5606 envelope
5607 .payload
5608 .action
5609 .ok_or_else(|| anyhow!("invalid action"))?,
5610 )?;
5611 let apply_code_action = this.update(&mut cx, |this, cx| {
5612 let buffer = this
5613 .opened_buffers
5614 .get(&envelope.payload.buffer_id)
5615 .and_then(|buffer| buffer.upgrade(cx))
5616 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5617 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
5618 })?;
5619
5620 let project_transaction = apply_code_action.await?;
5621 let project_transaction = this.update(&mut cx, |this, cx| {
5622 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5623 });
5624 Ok(proto::ApplyCodeActionResponse {
5625 transaction: Some(project_transaction),
5626 })
5627 }
5628
5629 async fn handle_lsp_command<T: LspCommand>(
5630 this: ModelHandle<Self>,
5631 envelope: TypedEnvelope<T::ProtoRequest>,
5632 _: Arc<Client>,
5633 mut cx: AsyncAppContext,
5634 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
5635 where
5636 <T::LspRequest as lsp::request::Request>::Result: Send,
5637 {
5638 let sender_id = envelope.original_sender_id()?;
5639 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
5640 let buffer_handle = this.read_with(&cx, |this, _| {
5641 this.opened_buffers
5642 .get(&buffer_id)
5643 .and_then(|buffer| buffer.upgrade(&cx))
5644 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
5645 })?;
5646 let request = T::from_proto(
5647 envelope.payload,
5648 this.clone(),
5649 buffer_handle.clone(),
5650 cx.clone(),
5651 )
5652 .await?;
5653 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
5654 let response = this
5655 .update(&mut cx, |this, cx| {
5656 this.request_lsp(buffer_handle, request, cx)
5657 })
5658 .await?;
5659 this.update(&mut cx, |this, cx| {
5660 Ok(T::response_to_proto(
5661 response,
5662 this,
5663 sender_id,
5664 &buffer_version,
5665 cx,
5666 ))
5667 })
5668 }
5669
5670 async fn handle_get_project_symbols(
5671 this: ModelHandle<Self>,
5672 envelope: TypedEnvelope<proto::GetProjectSymbols>,
5673 _: Arc<Client>,
5674 mut cx: AsyncAppContext,
5675 ) -> Result<proto::GetProjectSymbolsResponse> {
5676 let symbols = this
5677 .update(&mut cx, |this, cx| {
5678 this.symbols(&envelope.payload.query, cx)
5679 })
5680 .await?;
5681
5682 Ok(proto::GetProjectSymbolsResponse {
5683 symbols: symbols.iter().map(serialize_symbol).collect(),
5684 })
5685 }
5686
5687 async fn handle_search_project(
5688 this: ModelHandle<Self>,
5689 envelope: TypedEnvelope<proto::SearchProject>,
5690 _: Arc<Client>,
5691 mut cx: AsyncAppContext,
5692 ) -> Result<proto::SearchProjectResponse> {
5693 let peer_id = envelope.original_sender_id()?;
5694 let query = SearchQuery::from_proto(envelope.payload)?;
5695 let result = this
5696 .update(&mut cx, |this, cx| this.search(query, cx))
5697 .await?;
5698
5699 this.update(&mut cx, |this, cx| {
5700 let mut locations = Vec::new();
5701 for (buffer, ranges) in result {
5702 for range in ranges {
5703 let start = serialize_anchor(&range.start);
5704 let end = serialize_anchor(&range.end);
5705 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
5706 locations.push(proto::Location {
5707 buffer_id,
5708 start: Some(start),
5709 end: Some(end),
5710 });
5711 }
5712 }
5713 Ok(proto::SearchProjectResponse { locations })
5714 })
5715 }
5716
5717 async fn handle_open_buffer_for_symbol(
5718 this: ModelHandle<Self>,
5719 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
5720 _: Arc<Client>,
5721 mut cx: AsyncAppContext,
5722 ) -> Result<proto::OpenBufferForSymbolResponse> {
5723 let peer_id = envelope.original_sender_id()?;
5724 let symbol = envelope
5725 .payload
5726 .symbol
5727 .ok_or_else(|| anyhow!("invalid symbol"))?;
5728 let symbol = this
5729 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
5730 .await?;
5731 let symbol = this.read_with(&cx, |this, _| {
5732 let signature = this.symbol_signature(&symbol.path);
5733 if signature == symbol.signature {
5734 Ok(symbol)
5735 } else {
5736 Err(anyhow!("invalid symbol signature"))
5737 }
5738 })?;
5739 let buffer = this
5740 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
5741 .await?;
5742
5743 Ok(proto::OpenBufferForSymbolResponse {
5744 buffer_id: this.update(&mut cx, |this, cx| {
5745 this.create_buffer_for_peer(&buffer, peer_id, cx)
5746 }),
5747 })
5748 }
5749
5750 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
5751 let mut hasher = Sha256::new();
5752 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
5753 hasher.update(project_path.path.to_string_lossy().as_bytes());
5754 hasher.update(self.nonce.to_be_bytes());
5755 hasher.finalize().as_slice().try_into().unwrap()
5756 }
5757
5758 async fn handle_open_buffer_by_id(
5759 this: ModelHandle<Self>,
5760 envelope: TypedEnvelope<proto::OpenBufferById>,
5761 _: Arc<Client>,
5762 mut cx: AsyncAppContext,
5763 ) -> Result<proto::OpenBufferResponse> {
5764 let peer_id = envelope.original_sender_id()?;
5765 let buffer = this
5766 .update(&mut cx, |this, cx| {
5767 this.open_buffer_by_id(envelope.payload.id, cx)
5768 })
5769 .await?;
5770 this.update(&mut cx, |this, cx| {
5771 Ok(proto::OpenBufferResponse {
5772 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5773 })
5774 })
5775 }
5776
5777 async fn handle_open_buffer_by_path(
5778 this: ModelHandle<Self>,
5779 envelope: TypedEnvelope<proto::OpenBufferByPath>,
5780 _: Arc<Client>,
5781 mut cx: AsyncAppContext,
5782 ) -> Result<proto::OpenBufferResponse> {
5783 let peer_id = envelope.original_sender_id()?;
5784 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5785 let open_buffer = this.update(&mut cx, |this, cx| {
5786 this.open_buffer(
5787 ProjectPath {
5788 worktree_id,
5789 path: PathBuf::from(envelope.payload.path).into(),
5790 },
5791 cx,
5792 )
5793 });
5794
5795 let buffer = open_buffer.await?;
5796 this.update(&mut cx, |this, cx| {
5797 Ok(proto::OpenBufferResponse {
5798 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5799 })
5800 })
5801 }
5802
5803 fn serialize_project_transaction_for_peer(
5804 &mut self,
5805 project_transaction: ProjectTransaction,
5806 peer_id: proto::PeerId,
5807 cx: &mut AppContext,
5808 ) -> proto::ProjectTransaction {
5809 let mut serialized_transaction = proto::ProjectTransaction {
5810 buffer_ids: Default::default(),
5811 transactions: Default::default(),
5812 };
5813 for (buffer, transaction) in project_transaction.0 {
5814 serialized_transaction
5815 .buffer_ids
5816 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
5817 serialized_transaction
5818 .transactions
5819 .push(language::proto::serialize_transaction(&transaction));
5820 }
5821 serialized_transaction
5822 }
5823
5824 fn deserialize_project_transaction(
5825 &mut self,
5826 message: proto::ProjectTransaction,
5827 push_to_history: bool,
5828 cx: &mut ModelContext<Self>,
5829 ) -> Task<Result<ProjectTransaction>> {
5830 cx.spawn(|this, mut cx| async move {
5831 let mut project_transaction = ProjectTransaction::default();
5832 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
5833 {
5834 let buffer = this
5835 .update(&mut cx, |this, cx| {
5836 this.wait_for_remote_buffer(buffer_id, cx)
5837 })
5838 .await?;
5839 let transaction = language::proto::deserialize_transaction(transaction)?;
5840 project_transaction.0.insert(buffer, transaction);
5841 }
5842
5843 for (buffer, transaction) in &project_transaction.0 {
5844 buffer
5845 .update(&mut cx, |buffer, _| {
5846 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
5847 })
5848 .await?;
5849
5850 if push_to_history {
5851 buffer.update(&mut cx, |buffer, _| {
5852 buffer.push_transaction(transaction.clone(), Instant::now());
5853 });
5854 }
5855 }
5856
5857 Ok(project_transaction)
5858 })
5859 }
5860
5861 fn create_buffer_for_peer(
5862 &mut self,
5863 buffer: &ModelHandle<Buffer>,
5864 peer_id: proto::PeerId,
5865 cx: &mut AppContext,
5866 ) -> u64 {
5867 let buffer_id = buffer.read(cx).remote_id();
5868 if let Some(ProjectClientState::Local { updates_tx, .. }) = &self.client_state {
5869 updates_tx
5870 .unbounded_send(LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id })
5871 .ok();
5872 }
5873 buffer_id
5874 }
5875
5876 fn wait_for_remote_buffer(
5877 &mut self,
5878 id: u64,
5879 cx: &mut ModelContext<Self>,
5880 ) -> Task<Result<ModelHandle<Buffer>>> {
5881 let mut opened_buffer_rx = self.opened_buffer.1.clone();
5882
5883 cx.spawn_weak(|this, mut cx| async move {
5884 let buffer = loop {
5885 let Some(this) = this.upgrade(&cx) else {
5886 return Err(anyhow!("project dropped"));
5887 };
5888 let buffer = this.read_with(&cx, |this, cx| {
5889 this.opened_buffers
5890 .get(&id)
5891 .and_then(|buffer| buffer.upgrade(cx))
5892 });
5893 if let Some(buffer) = buffer {
5894 break buffer;
5895 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
5896 return Err(anyhow!("disconnected before buffer {} could be opened", id));
5897 }
5898
5899 this.update(&mut cx, |this, _| {
5900 this.incomplete_remote_buffers.entry(id).or_default();
5901 });
5902 drop(this);
5903 opened_buffer_rx
5904 .next()
5905 .await
5906 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
5907 };
5908 buffer.update(&mut cx, |buffer, cx| buffer.git_diff_recalc(cx));
5909 Ok(buffer)
5910 })
5911 }
5912
5913 fn synchronize_remote_buffers(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
5914 let project_id = match self.client_state.as_ref() {
5915 Some(ProjectClientState::Remote {
5916 sharing_has_stopped,
5917 remote_id,
5918 ..
5919 }) => {
5920 if *sharing_has_stopped {
5921 return Task::ready(Err(anyhow!(
5922 "can't synchronize remote buffers on a readonly project"
5923 )));
5924 } else {
5925 *remote_id
5926 }
5927 }
5928 Some(ProjectClientState::Local { .. }) | None => {
5929 return Task::ready(Err(anyhow!(
5930 "can't synchronize remote buffers on a local project"
5931 )))
5932 }
5933 };
5934
5935 let client = self.client.clone();
5936 cx.spawn(|this, cx| async move {
5937 let (buffers, incomplete_buffer_ids) = this.read_with(&cx, |this, cx| {
5938 let buffers = this
5939 .opened_buffers
5940 .iter()
5941 .filter_map(|(id, buffer)| {
5942 let buffer = buffer.upgrade(cx)?;
5943 Some(proto::BufferVersion {
5944 id: *id,
5945 version: language::proto::serialize_version(&buffer.read(cx).version),
5946 })
5947 })
5948 .collect();
5949 let incomplete_buffer_ids = this
5950 .incomplete_remote_buffers
5951 .keys()
5952 .copied()
5953 .collect::<Vec<_>>();
5954
5955 (buffers, incomplete_buffer_ids)
5956 });
5957 let response = client
5958 .request(proto::SynchronizeBuffers {
5959 project_id,
5960 buffers,
5961 })
5962 .await?;
5963
5964 let send_updates_for_buffers = response.buffers.into_iter().map(|buffer| {
5965 let client = client.clone();
5966 let buffer_id = buffer.id;
5967 let remote_version = language::proto::deserialize_version(&buffer.version);
5968 this.read_with(&cx, |this, cx| {
5969 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
5970 let operations = buffer.read(cx).serialize_ops(Some(remote_version), cx);
5971 cx.background().spawn(async move {
5972 let operations = operations.await;
5973 for chunk in split_operations(operations) {
5974 client
5975 .request(proto::UpdateBuffer {
5976 project_id,
5977 buffer_id,
5978 operations: chunk,
5979 })
5980 .await?;
5981 }
5982 anyhow::Ok(())
5983 })
5984 } else {
5985 Task::ready(Ok(()))
5986 }
5987 })
5988 });
5989
5990 // Any incomplete buffers have open requests waiting. Request that the host sends
5991 // creates these buffers for us again to unblock any waiting futures.
5992 for id in incomplete_buffer_ids {
5993 cx.background()
5994 .spawn(client.request(proto::OpenBufferById { project_id, id }))
5995 .detach();
5996 }
5997
5998 futures::future::join_all(send_updates_for_buffers)
5999 .await
6000 .into_iter()
6001 .collect()
6002 })
6003 }
6004
6005 pub fn worktree_metadata_protos(&self, cx: &AppContext) -> Vec<proto::WorktreeMetadata> {
6006 self.worktrees(cx)
6007 .map(|worktree| {
6008 let worktree = worktree.read(cx);
6009 proto::WorktreeMetadata {
6010 id: worktree.id().to_proto(),
6011 root_name: worktree.root_name().into(),
6012 visible: worktree.is_visible(),
6013 abs_path: worktree.abs_path().to_string_lossy().into(),
6014 }
6015 })
6016 .collect()
6017 }
6018
6019 fn set_worktrees_from_proto(
6020 &mut self,
6021 worktrees: Vec<proto::WorktreeMetadata>,
6022 cx: &mut ModelContext<Project>,
6023 ) -> Result<()> {
6024 let replica_id = self.replica_id();
6025 let remote_id = self.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
6026
6027 let mut old_worktrees_by_id = self
6028 .worktrees
6029 .drain(..)
6030 .filter_map(|worktree| {
6031 let worktree = worktree.upgrade(cx)?;
6032 Some((worktree.read(cx).id(), worktree))
6033 })
6034 .collect::<HashMap<_, _>>();
6035
6036 for worktree in worktrees {
6037 if let Some(old_worktree) =
6038 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
6039 {
6040 self.worktrees.push(WorktreeHandle::Strong(old_worktree));
6041 } else {
6042 let worktree =
6043 Worktree::remote(remote_id, replica_id, worktree, self.client.clone(), cx);
6044 let _ = self.add_worktree(&worktree, cx);
6045 }
6046 }
6047
6048 self.metadata_changed(cx);
6049 for (id, _) in old_worktrees_by_id {
6050 cx.emit(Event::WorktreeRemoved(id));
6051 }
6052
6053 Ok(())
6054 }
6055
6056 fn set_collaborators_from_proto(
6057 &mut self,
6058 messages: Vec<proto::Collaborator>,
6059 cx: &mut ModelContext<Self>,
6060 ) -> Result<()> {
6061 let mut collaborators = HashMap::default();
6062 for message in messages {
6063 let collaborator = Collaborator::from_proto(message)?;
6064 collaborators.insert(collaborator.peer_id, collaborator);
6065 }
6066 for old_peer_id in self.collaborators.keys() {
6067 if !collaborators.contains_key(old_peer_id) {
6068 cx.emit(Event::CollaboratorLeft(*old_peer_id));
6069 }
6070 }
6071 self.collaborators = collaborators;
6072 Ok(())
6073 }
6074
6075 fn deserialize_symbol(
6076 &self,
6077 serialized_symbol: proto::Symbol,
6078 ) -> impl Future<Output = Result<Symbol>> {
6079 let languages = self.languages.clone();
6080 async move {
6081 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
6082 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
6083 let start = serialized_symbol
6084 .start
6085 .ok_or_else(|| anyhow!("invalid start"))?;
6086 let end = serialized_symbol
6087 .end
6088 .ok_or_else(|| anyhow!("invalid end"))?;
6089 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
6090 let path = ProjectPath {
6091 worktree_id,
6092 path: PathBuf::from(serialized_symbol.path).into(),
6093 };
6094 let language = languages
6095 .language_for_file(&path.path, None)
6096 .await
6097 .log_err();
6098 Ok(Symbol {
6099 language_server_name: LanguageServerName(
6100 serialized_symbol.language_server_name.into(),
6101 ),
6102 source_worktree_id,
6103 path,
6104 label: {
6105 match language {
6106 Some(language) => {
6107 language
6108 .label_for_symbol(&serialized_symbol.name, kind)
6109 .await
6110 }
6111 None => None,
6112 }
6113 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
6114 },
6115
6116 name: serialized_symbol.name,
6117 range: Unclipped(PointUtf16::new(start.row, start.column))
6118 ..Unclipped(PointUtf16::new(end.row, end.column)),
6119 kind,
6120 signature: serialized_symbol
6121 .signature
6122 .try_into()
6123 .map_err(|_| anyhow!("invalid signature"))?,
6124 })
6125 }
6126 }
6127
6128 async fn handle_buffer_saved(
6129 this: ModelHandle<Self>,
6130 envelope: TypedEnvelope<proto::BufferSaved>,
6131 _: Arc<Client>,
6132 mut cx: AsyncAppContext,
6133 ) -> Result<()> {
6134 let fingerprint = deserialize_fingerprint(&envelope.payload.fingerprint)?;
6135 let version = deserialize_version(&envelope.payload.version);
6136 let mtime = envelope
6137 .payload
6138 .mtime
6139 .ok_or_else(|| anyhow!("missing mtime"))?
6140 .into();
6141
6142 this.update(&mut cx, |this, cx| {
6143 let buffer = this
6144 .opened_buffers
6145 .get(&envelope.payload.buffer_id)
6146 .and_then(|buffer| buffer.upgrade(cx))
6147 .or_else(|| {
6148 this.incomplete_remote_buffers
6149 .get(&envelope.payload.buffer_id)
6150 .and_then(|b| b.clone())
6151 });
6152 if let Some(buffer) = buffer {
6153 buffer.update(cx, |buffer, cx| {
6154 buffer.did_save(version, fingerprint, mtime, cx);
6155 });
6156 }
6157 Ok(())
6158 })
6159 }
6160
6161 async fn handle_buffer_reloaded(
6162 this: ModelHandle<Self>,
6163 envelope: TypedEnvelope<proto::BufferReloaded>,
6164 _: Arc<Client>,
6165 mut cx: AsyncAppContext,
6166 ) -> Result<()> {
6167 let payload = envelope.payload;
6168 let version = deserialize_version(&payload.version);
6169 let fingerprint = deserialize_fingerprint(&payload.fingerprint)?;
6170 let line_ending = deserialize_line_ending(
6171 proto::LineEnding::from_i32(payload.line_ending)
6172 .ok_or_else(|| anyhow!("missing line ending"))?,
6173 );
6174 let mtime = payload
6175 .mtime
6176 .ok_or_else(|| anyhow!("missing mtime"))?
6177 .into();
6178 this.update(&mut cx, |this, cx| {
6179 let buffer = this
6180 .opened_buffers
6181 .get(&payload.buffer_id)
6182 .and_then(|buffer| buffer.upgrade(cx))
6183 .or_else(|| {
6184 this.incomplete_remote_buffers
6185 .get(&payload.buffer_id)
6186 .cloned()
6187 .flatten()
6188 });
6189 if let Some(buffer) = buffer {
6190 buffer.update(cx, |buffer, cx| {
6191 buffer.did_reload(version, fingerprint, line_ending, mtime, cx);
6192 });
6193 }
6194 Ok(())
6195 })
6196 }
6197
6198 #[allow(clippy::type_complexity)]
6199 fn edits_from_lsp(
6200 &mut self,
6201 buffer: &ModelHandle<Buffer>,
6202 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
6203 server_id: LanguageServerId,
6204 version: Option<i32>,
6205 cx: &mut ModelContext<Self>,
6206 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
6207 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx);
6208 cx.background().spawn(async move {
6209 let snapshot = snapshot?;
6210 let mut lsp_edits = lsp_edits
6211 .into_iter()
6212 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
6213 .collect::<Vec<_>>();
6214 lsp_edits.sort_by_key(|(range, _)| range.start);
6215
6216 let mut lsp_edits = lsp_edits.into_iter().peekable();
6217 let mut edits = Vec::new();
6218 while let Some((range, mut new_text)) = lsp_edits.next() {
6219 // Clip invalid ranges provided by the language server.
6220 let mut range = snapshot.clip_point_utf16(range.start, Bias::Left)
6221 ..snapshot.clip_point_utf16(range.end, Bias::Left);
6222
6223 // Combine any LSP edits that are adjacent.
6224 //
6225 // Also, combine LSP edits that are separated from each other by only
6226 // a newline. This is important because for some code actions,
6227 // Rust-analyzer rewrites the entire buffer via a series of edits that
6228 // are separated by unchanged newline characters.
6229 //
6230 // In order for the diffing logic below to work properly, any edits that
6231 // cancel each other out must be combined into one.
6232 while let Some((next_range, next_text)) = lsp_edits.peek() {
6233 if next_range.start.0 > range.end {
6234 if next_range.start.0.row > range.end.row + 1
6235 || next_range.start.0.column > 0
6236 || snapshot.clip_point_utf16(
6237 Unclipped(PointUtf16::new(range.end.row, u32::MAX)),
6238 Bias::Left,
6239 ) > range.end
6240 {
6241 break;
6242 }
6243 new_text.push('\n');
6244 }
6245 range.end = snapshot.clip_point_utf16(next_range.end, Bias::Left);
6246 new_text.push_str(next_text);
6247 lsp_edits.next();
6248 }
6249
6250 // For multiline edits, perform a diff of the old and new text so that
6251 // we can identify the changes more precisely, preserving the locations
6252 // of any anchors positioned in the unchanged regions.
6253 if range.end.row > range.start.row {
6254 let mut offset = range.start.to_offset(&snapshot);
6255 let old_text = snapshot.text_for_range(range).collect::<String>();
6256
6257 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
6258 let mut moved_since_edit = true;
6259 for change in diff.iter_all_changes() {
6260 let tag = change.tag();
6261 let value = change.value();
6262 match tag {
6263 ChangeTag::Equal => {
6264 offset += value.len();
6265 moved_since_edit = true;
6266 }
6267 ChangeTag::Delete => {
6268 let start = snapshot.anchor_after(offset);
6269 let end = snapshot.anchor_before(offset + value.len());
6270 if moved_since_edit {
6271 edits.push((start..end, String::new()));
6272 } else {
6273 edits.last_mut().unwrap().0.end = end;
6274 }
6275 offset += value.len();
6276 moved_since_edit = false;
6277 }
6278 ChangeTag::Insert => {
6279 if moved_since_edit {
6280 let anchor = snapshot.anchor_after(offset);
6281 edits.push((anchor..anchor, value.to_string()));
6282 } else {
6283 edits.last_mut().unwrap().1.push_str(value);
6284 }
6285 moved_since_edit = false;
6286 }
6287 }
6288 }
6289 } else if range.end == range.start {
6290 let anchor = snapshot.anchor_after(range.start);
6291 edits.push((anchor..anchor, new_text));
6292 } else {
6293 let edit_start = snapshot.anchor_after(range.start);
6294 let edit_end = snapshot.anchor_before(range.end);
6295 edits.push((edit_start..edit_end, new_text));
6296 }
6297 }
6298
6299 Ok(edits)
6300 })
6301 }
6302
6303 fn buffer_snapshot_for_lsp_version(
6304 &mut self,
6305 buffer: &ModelHandle<Buffer>,
6306 server_id: LanguageServerId,
6307 version: Option<i32>,
6308 cx: &AppContext,
6309 ) -> Result<TextBufferSnapshot> {
6310 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
6311
6312 if let Some(version) = version {
6313 let buffer_id = buffer.read(cx).remote_id();
6314 let snapshots = self
6315 .buffer_snapshots
6316 .get_mut(&buffer_id)
6317 .and_then(|m| m.get_mut(&server_id))
6318 .ok_or_else(|| {
6319 anyhow!("no snapshots found for buffer {buffer_id} and server {server_id}")
6320 })?;
6321
6322 let found_snapshot = snapshots
6323 .binary_search_by_key(&version, |e| e.version)
6324 .map(|ix| snapshots[ix].snapshot.clone())
6325 .map_err(|_| {
6326 anyhow!("snapshot not found for buffer {buffer_id} server {server_id} at version {version}")
6327 })?;
6328
6329 snapshots.retain(|snapshot| snapshot.version + OLD_VERSIONS_TO_RETAIN >= version);
6330 Ok(found_snapshot)
6331 } else {
6332 Ok((buffer.read(cx)).text_snapshot())
6333 }
6334 }
6335
6336 pub fn language_servers(
6337 &self,
6338 ) -> impl '_ + Iterator<Item = (LanguageServerId, LanguageServerName, WorktreeId)> {
6339 self.language_server_ids
6340 .iter()
6341 .map(|((worktree_id, server_name), server_id)| {
6342 (*server_id, server_name.clone(), *worktree_id)
6343 })
6344 }
6345
6346 pub fn language_server_for_id(&self, id: LanguageServerId) -> Option<Arc<LanguageServer>> {
6347 if let LanguageServerState::Running { server, .. } = self.language_servers.get(&id)? {
6348 Some(server.clone())
6349 } else {
6350 None
6351 }
6352 }
6353
6354 pub fn language_servers_for_buffer(
6355 &self,
6356 buffer: &Buffer,
6357 cx: &AppContext,
6358 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6359 self.language_server_ids_for_buffer(buffer, cx)
6360 .into_iter()
6361 .filter_map(|server_id| {
6362 let server = self.language_servers.get(&server_id)?;
6363 if let LanguageServerState::Running {
6364 adapter, server, ..
6365 } = server
6366 {
6367 Some((adapter, server))
6368 } else {
6369 None
6370 }
6371 })
6372 }
6373
6374 fn primary_language_servers_for_buffer(
6375 &self,
6376 buffer: &Buffer,
6377 cx: &AppContext,
6378 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6379 self.language_servers_for_buffer(buffer, cx).next()
6380 }
6381
6382 fn language_server_for_buffer(
6383 &self,
6384 buffer: &Buffer,
6385 server_id: LanguageServerId,
6386 cx: &AppContext,
6387 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6388 self.language_servers_for_buffer(buffer, cx)
6389 .find(|(_, s)| s.server_id() == server_id)
6390 }
6391
6392 fn language_server_ids_for_buffer(
6393 &self,
6394 buffer: &Buffer,
6395 cx: &AppContext,
6396 ) -> Vec<LanguageServerId> {
6397 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
6398 let worktree_id = file.worktree_id(cx);
6399 language
6400 .lsp_adapters()
6401 .iter()
6402 .flat_map(|adapter| {
6403 let key = (worktree_id, adapter.name.clone());
6404 self.language_server_ids.get(&key).copied()
6405 })
6406 .collect()
6407 } else {
6408 Vec::new()
6409 }
6410 }
6411}
6412
6413impl WorktreeHandle {
6414 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
6415 match self {
6416 WorktreeHandle::Strong(handle) => Some(handle.clone()),
6417 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
6418 }
6419 }
6420}
6421
6422impl OpenBuffer {
6423 pub fn upgrade(&self, cx: &impl BorrowAppContext) -> Option<ModelHandle<Buffer>> {
6424 match self {
6425 OpenBuffer::Strong(handle) => Some(handle.clone()),
6426 OpenBuffer::Weak(handle) => handle.upgrade(cx),
6427 OpenBuffer::Operations(_) => None,
6428 }
6429 }
6430}
6431
6432pub struct PathMatchCandidateSet {
6433 pub snapshot: Snapshot,
6434 pub include_ignored: bool,
6435 pub include_root_name: bool,
6436}
6437
6438impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
6439 type Candidates = PathMatchCandidateSetIter<'a>;
6440
6441 fn id(&self) -> usize {
6442 self.snapshot.id().to_usize()
6443 }
6444
6445 fn len(&self) -> usize {
6446 if self.include_ignored {
6447 self.snapshot.file_count()
6448 } else {
6449 self.snapshot.visible_file_count()
6450 }
6451 }
6452
6453 fn prefix(&self) -> Arc<str> {
6454 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
6455 self.snapshot.root_name().into()
6456 } else if self.include_root_name {
6457 format!("{}/", self.snapshot.root_name()).into()
6458 } else {
6459 "".into()
6460 }
6461 }
6462
6463 fn candidates(&'a self, start: usize) -> Self::Candidates {
6464 PathMatchCandidateSetIter {
6465 traversal: self.snapshot.files(self.include_ignored, start),
6466 }
6467 }
6468}
6469
6470pub struct PathMatchCandidateSetIter<'a> {
6471 traversal: Traversal<'a>,
6472}
6473
6474impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
6475 type Item = fuzzy::PathMatchCandidate<'a>;
6476
6477 fn next(&mut self) -> Option<Self::Item> {
6478 self.traversal.next().map(|entry| {
6479 if let EntryKind::File(char_bag) = entry.kind {
6480 fuzzy::PathMatchCandidate {
6481 path: &entry.path,
6482 char_bag,
6483 }
6484 } else {
6485 unreachable!()
6486 }
6487 })
6488 }
6489}
6490
6491impl Entity for Project {
6492 type Event = Event;
6493
6494 fn release(&mut self, cx: &mut gpui::AppContext) {
6495 match &self.client_state {
6496 Some(ProjectClientState::Local { .. }) => {
6497 let _ = self.unshare_internal(cx);
6498 }
6499 Some(ProjectClientState::Remote { remote_id, .. }) => {
6500 let _ = self.client.send(proto::LeaveProject {
6501 project_id: *remote_id,
6502 });
6503 self.disconnected_from_host_internal(cx);
6504 }
6505 _ => {}
6506 }
6507 }
6508
6509 fn app_will_quit(
6510 &mut self,
6511 _: &mut AppContext,
6512 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
6513 let shutdown_futures = self
6514 .language_servers
6515 .drain()
6516 .map(|(_, server_state)| async {
6517 match server_state {
6518 LanguageServerState::Running { server, .. } => server.shutdown()?.await,
6519 LanguageServerState::Starting(starting_server) => {
6520 starting_server.await?.shutdown()?.await
6521 }
6522 }
6523 })
6524 .collect::<Vec<_>>();
6525
6526 Some(
6527 async move {
6528 futures::future::join_all(shutdown_futures).await;
6529 }
6530 .boxed(),
6531 )
6532 }
6533}
6534
6535impl Collaborator {
6536 fn from_proto(message: proto::Collaborator) -> Result<Self> {
6537 Ok(Self {
6538 peer_id: message.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?,
6539 replica_id: message.replica_id as ReplicaId,
6540 })
6541 }
6542}
6543
6544impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
6545 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
6546 Self {
6547 worktree_id,
6548 path: path.as_ref().into(),
6549 }
6550 }
6551}
6552
6553fn split_operations(
6554 mut operations: Vec<proto::Operation>,
6555) -> impl Iterator<Item = Vec<proto::Operation>> {
6556 #[cfg(any(test, feature = "test-support"))]
6557 const CHUNK_SIZE: usize = 5;
6558
6559 #[cfg(not(any(test, feature = "test-support")))]
6560 const CHUNK_SIZE: usize = 100;
6561
6562 let mut done = false;
6563 std::iter::from_fn(move || {
6564 if done {
6565 return None;
6566 }
6567
6568 let operations = operations
6569 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
6570 .collect::<Vec<_>>();
6571 if operations.is_empty() {
6572 done = true;
6573 }
6574 Some(operations)
6575 })
6576}
6577
6578fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
6579 proto::Symbol {
6580 language_server_name: symbol.language_server_name.0.to_string(),
6581 source_worktree_id: symbol.source_worktree_id.to_proto(),
6582 worktree_id: symbol.path.worktree_id.to_proto(),
6583 path: symbol.path.path.to_string_lossy().to_string(),
6584 name: symbol.name.clone(),
6585 kind: unsafe { mem::transmute(symbol.kind) },
6586 start: Some(proto::PointUtf16 {
6587 row: symbol.range.start.0.row,
6588 column: symbol.range.start.0.column,
6589 }),
6590 end: Some(proto::PointUtf16 {
6591 row: symbol.range.end.0.row,
6592 column: symbol.range.end.0.column,
6593 }),
6594 signature: symbol.signature.to_vec(),
6595 }
6596}
6597
6598fn relativize_path(base: &Path, path: &Path) -> PathBuf {
6599 let mut path_components = path.components();
6600 let mut base_components = base.components();
6601 let mut components: Vec<Component> = Vec::new();
6602 loop {
6603 match (path_components.next(), base_components.next()) {
6604 (None, None) => break,
6605 (Some(a), None) => {
6606 components.push(a);
6607 components.extend(path_components.by_ref());
6608 break;
6609 }
6610 (None, _) => components.push(Component::ParentDir),
6611 (Some(a), Some(b)) if components.is_empty() && a == b => (),
6612 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
6613 (Some(a), Some(_)) => {
6614 components.push(Component::ParentDir);
6615 for _ in base_components {
6616 components.push(Component::ParentDir);
6617 }
6618 components.push(a);
6619 components.extend(path_components.by_ref());
6620 break;
6621 }
6622 }
6623 }
6624 components.iter().map(|c| c.as_os_str()).collect()
6625}
6626
6627impl Item for Buffer {
6628 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
6629 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
6630 }
6631
6632 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
6633 File::from_dyn(self.file()).map(|file| ProjectPath {
6634 worktree_id: file.worktree_id(cx),
6635 path: file.path().clone(),
6636 })
6637 }
6638}