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