1mod ignore;
2mod lsp_command;
3mod project_settings;
4pub mod search;
5pub mod terminals;
6pub mod worktree;
7
8#[cfg(test)]
9mod project_tests;
10
11use anyhow::{anyhow, Context, Result};
12use client::{proto, Client, TypedEnvelope, UserStore};
13use clock::ReplicaId;
14use collections::{hash_map, BTreeMap, HashMap, HashSet};
15use copilot::Copilot;
16use futures::{
17 channel::mpsc::{self, UnboundedReceiver},
18 future::{try_join_all, Shared},
19 stream::FuturesUnordered,
20 AsyncWriteExt, Future, FutureExt, StreamExt, TryFutureExt,
21};
22use globset::{Glob, GlobSet, GlobSetBuilder};
23use gpui::{
24 AnyModelHandle, AppContext, AsyncAppContext, BorrowAppContext, Entity, ModelContext,
25 ModelHandle, Task, WeakModelHandle,
26};
27use language::{
28 language_settings::{all_language_settings, language_settings, FormatOnSave, Formatter},
29 point_to_lsp,
30 proto::{
31 deserialize_anchor, deserialize_fingerprint, deserialize_line_ending, deserialize_version,
32 serialize_anchor, serialize_version,
33 },
34 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CachedLspAdapter, CodeAction, CodeLabel,
35 Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Diff, Event as BufferEvent, File as _,
36 Language, LanguageRegistry, LanguageServerName, LocalFile, OffsetRangeExt, Operation, Patch,
37 PendingLanguageServer, PointUtf16, RopeFingerprint, TextBufferSnapshot, ToOffset, ToPointUtf16,
38 Transaction, Unclipped,
39};
40use lsp::{
41 DiagnosticSeverity, DiagnosticTag, DidChangeWatchedFilesRegistrationOptions,
42 DocumentHighlightKind, LanguageServer, LanguageServerId,
43};
44use lsp_command::*;
45use postage::watch;
46use project_settings::ProjectSettings;
47use rand::prelude::*;
48use search::SearchQuery;
49use serde::Serialize;
50use settings::SettingsStore;
51use sha2::{Digest, Sha256};
52use similar::{ChangeTag, TextDiff};
53use std::{
54 cell::RefCell,
55 cmp::{self, Ordering},
56 convert::TryInto,
57 hash::Hash,
58 mem,
59 num::NonZeroU32,
60 ops::Range,
61 path::{Component, Path, PathBuf},
62 rc::Rc,
63 str,
64 sync::{
65 atomic::{AtomicUsize, Ordering::SeqCst},
66 Arc,
67 },
68 time::{Duration, Instant, SystemTime},
69};
70use terminals::Terminals;
71use util::{debug_panic, defer, merge_json_value_into, post_inc, ResultExt, TryFutureExt as _};
72
73pub use fs::*;
74pub use worktree::*;
75
76pub trait Item {
77 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
78 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
79}
80
81// Language server state is stored across 3 collections:
82// language_servers =>
83// a mapping from unique server id to LanguageServerState which can either be a task for a
84// server in the process of starting, or a running server with adapter and language server arcs
85// language_server_ids => a mapping from worktreeId and server name to the unique server id
86// language_server_statuses => a mapping from unique server id to the current server status
87//
88// Multiple worktrees can map to the same language server for example when you jump to the definition
89// of a file in the standard library. So language_server_ids is used to look up which server is active
90// for a given worktree and language server name
91//
92// When starting a language server, first the id map is checked to make sure a server isn't already available
93// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
94// the Starting variant of LanguageServerState is stored in the language_servers map.
95pub struct Project {
96 worktrees: Vec<WorktreeHandle>,
97 active_entry: Option<ProjectEntryId>,
98 buffer_ordered_messages_tx: mpsc::UnboundedSender<BufferOrderedMessage>,
99 languages: Arc<LanguageRegistry>,
100 language_servers: HashMap<LanguageServerId, LanguageServerState>,
101 language_server_ids: HashMap<(WorktreeId, LanguageServerName), LanguageServerId>,
102 language_server_statuses: BTreeMap<LanguageServerId, LanguageServerStatus>,
103 last_workspace_edits_by_language_server: HashMap<LanguageServerId, ProjectTransaction>,
104 client: Arc<client::Client>,
105 next_entry_id: Arc<AtomicUsize>,
106 join_project_response_message_id: u32,
107 next_diagnostic_group_id: usize,
108 user_store: ModelHandle<UserStore>,
109 fs: Arc<dyn Fs>,
110 client_state: Option<ProjectClientState>,
111 collaborators: HashMap<proto::PeerId, Collaborator>,
112 client_subscriptions: Vec<client::Subscription>,
113 _subscriptions: Vec<gpui::Subscription>,
114 next_buffer_id: u64,
115 opened_buffer: (watch::Sender<()>, watch::Receiver<()>),
116 shared_buffers: HashMap<proto::PeerId, HashSet<u64>>,
117 #[allow(clippy::type_complexity)]
118 loading_buffers_by_path: HashMap<
119 ProjectPath,
120 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
121 >,
122 #[allow(clippy::type_complexity)]
123 loading_local_worktrees:
124 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
125 opened_buffers: HashMap<u64, OpenBuffer>,
126 local_buffer_ids_by_path: HashMap<ProjectPath, u64>,
127 local_buffer_ids_by_entry_id: HashMap<ProjectEntryId, u64>,
128 /// A mapping from a buffer ID to None means that we've started waiting for an ID but haven't finished loading it.
129 /// Used for re-issuing buffer requests when peers temporarily disconnect
130 incomplete_remote_buffers: HashMap<u64, Option<ModelHandle<Buffer>>>,
131 buffer_snapshots: HashMap<u64, HashMap<LanguageServerId, Vec<LspBufferSnapshot>>>, // buffer_id -> server_id -> vec of snapshots
132 buffers_being_formatted: HashSet<u64>,
133 nonce: u128,
134 _maintain_buffer_languages: Task<()>,
135 _maintain_workspace_config: Task<()>,
136 terminals: Terminals,
137 copilot_enabled: bool,
138}
139
140struct LspBufferSnapshot {
141 version: i32,
142 snapshot: TextBufferSnapshot,
143}
144
145/// Message ordered with respect to buffer operations
146enum BufferOrderedMessage {
147 Operation {
148 buffer_id: u64,
149 operation: proto::Operation,
150 },
151 LanguageServerUpdate {
152 language_server_id: LanguageServerId,
153 message: proto::update_language_server::Variant,
154 },
155 Resync,
156}
157
158enum LocalProjectUpdate {
159 WorktreesChanged,
160 CreateBufferForPeer {
161 peer_id: proto::PeerId,
162 buffer_id: u64,
163 },
164}
165
166enum OpenBuffer {
167 Strong(ModelHandle<Buffer>),
168 Weak(WeakModelHandle<Buffer>),
169 Operations(Vec<Operation>),
170}
171
172enum WorktreeHandle {
173 Strong(ModelHandle<Worktree>),
174 Weak(WeakModelHandle<Worktree>),
175}
176
177enum ProjectClientState {
178 Local {
179 remote_id: u64,
180 updates_tx: mpsc::UnboundedSender<LocalProjectUpdate>,
181 _send_updates: Task<()>,
182 },
183 Remote {
184 sharing_has_stopped: bool,
185 remote_id: u64,
186 replica_id: ReplicaId,
187 },
188}
189
190#[derive(Clone, Debug)]
191pub struct Collaborator {
192 pub peer_id: proto::PeerId,
193 pub replica_id: ReplicaId,
194}
195
196#[derive(Clone, Debug, PartialEq, Eq)]
197pub enum Event {
198 LanguageServerAdded(LanguageServerId),
199 LanguageServerRemoved(LanguageServerId),
200 ActiveEntryChanged(Option<ProjectEntryId>),
201 WorktreeAdded,
202 WorktreeRemoved(WorktreeId),
203 DiskBasedDiagnosticsStarted {
204 language_server_id: LanguageServerId,
205 },
206 DiskBasedDiagnosticsFinished {
207 language_server_id: LanguageServerId,
208 },
209 DiagnosticsUpdated {
210 path: ProjectPath,
211 language_server_id: LanguageServerId,
212 },
213 RemoteIdChanged(Option<u64>),
214 DisconnectedFromHost,
215 Closed,
216 DeletedEntry(ProjectEntryId),
217 CollaboratorUpdated {
218 old_peer_id: proto::PeerId,
219 new_peer_id: proto::PeerId,
220 },
221 CollaboratorLeft(proto::PeerId),
222}
223
224pub enum LanguageServerState {
225 Starting(Task<Option<Arc<LanguageServer>>>),
226 Running {
227 language: Arc<Language>,
228 adapter: Arc<CachedLspAdapter>,
229 server: Arc<LanguageServer>,
230 watched_paths: HashMap<WorktreeId, GlobSet>,
231 simulate_disk_based_diagnostics_completion: Option<Task<()>>,
232 },
233}
234
235#[derive(Serialize)]
236pub struct LanguageServerStatus {
237 pub name: String,
238 pub pending_work: BTreeMap<String, LanguageServerProgress>,
239 pub has_pending_diagnostic_updates: bool,
240 progress_tokens: HashSet<String>,
241}
242
243#[derive(Clone, Debug, Serialize)]
244pub struct LanguageServerProgress {
245 pub message: Option<String>,
246 pub percentage: Option<usize>,
247 #[serde(skip_serializing)]
248 pub last_update_at: Instant,
249}
250
251#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
252pub struct ProjectPath {
253 pub worktree_id: WorktreeId,
254 pub path: Arc<Path>,
255}
256
257#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
258pub struct DiagnosticSummary {
259 pub error_count: usize,
260 pub warning_count: usize,
261}
262
263#[derive(Debug, Clone)]
264pub struct Location {
265 pub buffer: ModelHandle<Buffer>,
266 pub range: Range<language::Anchor>,
267}
268
269#[derive(Debug, Clone)]
270pub struct LocationLink {
271 pub origin: Option<Location>,
272 pub target: Location,
273}
274
275#[derive(Debug)]
276pub struct DocumentHighlight {
277 pub range: Range<language::Anchor>,
278 pub kind: DocumentHighlightKind,
279}
280
281#[derive(Clone, Debug)]
282pub struct Symbol {
283 pub language_server_name: LanguageServerName,
284 pub source_worktree_id: WorktreeId,
285 pub path: ProjectPath,
286 pub label: CodeLabel,
287 pub name: String,
288 pub kind: lsp::SymbolKind,
289 pub range: Range<Unclipped<PointUtf16>>,
290 pub signature: [u8; 32],
291}
292
293#[derive(Clone, Debug, PartialEq)]
294pub struct HoverBlock {
295 pub text: String,
296 pub kind: HoverBlockKind,
297}
298
299#[derive(Clone, Debug, PartialEq)]
300pub enum HoverBlockKind {
301 PlainText,
302 Markdown,
303 Code { language: String },
304}
305
306#[derive(Debug)]
307pub struct Hover {
308 pub contents: Vec<HoverBlock>,
309 pub range: Option<Range<language::Anchor>>,
310}
311
312#[derive(Default)]
313pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
314
315impl DiagnosticSummary {
316 fn new<'a, T: 'a>(diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>) -> Self {
317 let mut this = Self {
318 error_count: 0,
319 warning_count: 0,
320 };
321
322 for entry in diagnostics {
323 if entry.diagnostic.is_primary {
324 match entry.diagnostic.severity {
325 DiagnosticSeverity::ERROR => this.error_count += 1,
326 DiagnosticSeverity::WARNING => this.warning_count += 1,
327 _ => {}
328 }
329 }
330 }
331
332 this
333 }
334
335 pub fn is_empty(&self) -> bool {
336 self.error_count == 0 && self.warning_count == 0
337 }
338
339 pub fn to_proto(
340 &self,
341 language_server_id: LanguageServerId,
342 path: &Path,
343 ) -> proto::DiagnosticSummary {
344 proto::DiagnosticSummary {
345 path: path.to_string_lossy().to_string(),
346 language_server_id: language_server_id.0 as u64,
347 error_count: self.error_count as u32,
348 warning_count: self.warning_count as u32,
349 }
350 }
351}
352
353#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
354pub struct ProjectEntryId(usize);
355
356impl ProjectEntryId {
357 pub const MAX: Self = Self(usize::MAX);
358
359 pub fn new(counter: &AtomicUsize) -> Self {
360 Self(counter.fetch_add(1, SeqCst))
361 }
362
363 pub fn from_proto(id: u64) -> Self {
364 Self(id as usize)
365 }
366
367 pub fn to_proto(&self) -> u64 {
368 self.0 as u64
369 }
370
371 pub fn to_usize(&self) -> usize {
372 self.0
373 }
374}
375
376#[derive(Debug, Clone, Copy, PartialEq, Eq)]
377pub enum FormatTrigger {
378 Save,
379 Manual,
380}
381
382impl FormatTrigger {
383 fn from_proto(value: i32) -> FormatTrigger {
384 match value {
385 0 => FormatTrigger::Save,
386 1 => FormatTrigger::Manual,
387 _ => FormatTrigger::Save,
388 }
389 }
390}
391
392impl Project {
393 pub fn init_settings(cx: &mut AppContext) {
394 settings::register::<ProjectSettings>(cx);
395 }
396
397 pub fn init(client: &Arc<Client>, cx: &mut AppContext) {
398 Self::init_settings(cx);
399
400 client.add_model_message_handler(Self::handle_add_collaborator);
401 client.add_model_message_handler(Self::handle_update_project_collaborator);
402 client.add_model_message_handler(Self::handle_remove_collaborator);
403 client.add_model_message_handler(Self::handle_buffer_reloaded);
404 client.add_model_message_handler(Self::handle_buffer_saved);
405 client.add_model_message_handler(Self::handle_start_language_server);
406 client.add_model_message_handler(Self::handle_update_language_server);
407 client.add_model_message_handler(Self::handle_update_project);
408 client.add_model_message_handler(Self::handle_unshare_project);
409 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
410 client.add_model_message_handler(Self::handle_update_buffer_file);
411 client.add_model_request_handler(Self::handle_update_buffer);
412 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
413 client.add_model_message_handler(Self::handle_update_worktree);
414 client.add_model_request_handler(Self::handle_create_project_entry);
415 client.add_model_request_handler(Self::handle_rename_project_entry);
416 client.add_model_request_handler(Self::handle_copy_project_entry);
417 client.add_model_request_handler(Self::handle_delete_project_entry);
418 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
419 client.add_model_request_handler(Self::handle_apply_code_action);
420 client.add_model_request_handler(Self::handle_on_type_formatting);
421 client.add_model_request_handler(Self::handle_reload_buffers);
422 client.add_model_request_handler(Self::handle_synchronize_buffers);
423 client.add_model_request_handler(Self::handle_format_buffers);
424 client.add_model_request_handler(Self::handle_lsp_command::<GetCodeActions>);
425 client.add_model_request_handler(Self::handle_lsp_command::<GetCompletions>);
426 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
427 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
428 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
429 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
430 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
431 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
432 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
433 client.add_model_request_handler(Self::handle_search_project);
434 client.add_model_request_handler(Self::handle_get_project_symbols);
435 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
436 client.add_model_request_handler(Self::handle_open_buffer_by_id);
437 client.add_model_request_handler(Self::handle_open_buffer_by_path);
438 client.add_model_request_handler(Self::handle_save_buffer);
439 client.add_model_message_handler(Self::handle_update_diff_base);
440 }
441
442 pub fn local(
443 client: Arc<Client>,
444 user_store: ModelHandle<UserStore>,
445 languages: Arc<LanguageRegistry>,
446 fs: Arc<dyn Fs>,
447 cx: &mut AppContext,
448 ) -> ModelHandle<Self> {
449 cx.add_model(|cx: &mut ModelContext<Self>| {
450 let (tx, rx) = mpsc::unbounded();
451 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
452 .detach();
453 Self {
454 worktrees: Default::default(),
455 buffer_ordered_messages_tx: tx,
456 collaborators: Default::default(),
457 next_buffer_id: 0,
458 opened_buffers: Default::default(),
459 shared_buffers: Default::default(),
460 incomplete_remote_buffers: Default::default(),
461 loading_buffers_by_path: Default::default(),
462 loading_local_worktrees: Default::default(),
463 local_buffer_ids_by_path: Default::default(),
464 local_buffer_ids_by_entry_id: Default::default(),
465 buffer_snapshots: Default::default(),
466 join_project_response_message_id: 0,
467 client_state: None,
468 opened_buffer: watch::channel(),
469 client_subscriptions: Vec::new(),
470 _subscriptions: vec![
471 cx.observe_global::<SettingsStore, _>(Self::on_settings_changed)
472 ],
473 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
474 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
475 active_entry: None,
476 languages,
477 client,
478 user_store,
479 fs,
480 next_entry_id: Default::default(),
481 next_diagnostic_group_id: Default::default(),
482 language_servers: Default::default(),
483 language_server_ids: Default::default(),
484 language_server_statuses: Default::default(),
485 last_workspace_edits_by_language_server: Default::default(),
486 buffers_being_formatted: Default::default(),
487 nonce: StdRng::from_entropy().gen(),
488 terminals: Terminals {
489 local_handles: Vec::new(),
490 },
491 copilot_enabled: Copilot::global(cx).is_some(),
492 }
493 })
494 }
495
496 pub async fn remote(
497 remote_id: u64,
498 client: Arc<Client>,
499 user_store: ModelHandle<UserStore>,
500 languages: Arc<LanguageRegistry>,
501 fs: Arc<dyn Fs>,
502 mut cx: AsyncAppContext,
503 ) -> Result<ModelHandle<Self>> {
504 client.authenticate_and_connect(true, &cx).await?;
505
506 let subscription = client.subscribe_to_entity(remote_id)?;
507 let response = client
508 .request_envelope(proto::JoinProject {
509 project_id: remote_id,
510 })
511 .await?;
512 let this = cx.add_model(|cx| {
513 let replica_id = response.payload.replica_id as ReplicaId;
514
515 let mut worktrees = Vec::new();
516 for worktree in response.payload.worktrees {
517 let worktree = cx.update(|cx| {
518 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx)
519 });
520 worktrees.push(worktree);
521 }
522
523 let (tx, rx) = mpsc::unbounded();
524 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
525 .detach();
526 let mut this = Self {
527 worktrees: Vec::new(),
528 buffer_ordered_messages_tx: tx,
529 loading_buffers_by_path: Default::default(),
530 next_buffer_id: 0,
531 opened_buffer: watch::channel(),
532 shared_buffers: Default::default(),
533 incomplete_remote_buffers: Default::default(),
534 loading_local_worktrees: Default::default(),
535 local_buffer_ids_by_path: Default::default(),
536 local_buffer_ids_by_entry_id: Default::default(),
537 active_entry: None,
538 collaborators: Default::default(),
539 join_project_response_message_id: response.message_id,
540 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
541 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
542 languages,
543 user_store: user_store.clone(),
544 fs,
545 next_entry_id: Default::default(),
546 next_diagnostic_group_id: Default::default(),
547 client_subscriptions: Default::default(),
548 _subscriptions: Default::default(),
549 client: client.clone(),
550 client_state: Some(ProjectClientState::Remote {
551 sharing_has_stopped: false,
552 remote_id,
553 replica_id,
554 }),
555 language_servers: Default::default(),
556 language_server_ids: Default::default(),
557 language_server_statuses: response
558 .payload
559 .language_servers
560 .into_iter()
561 .map(|server| {
562 (
563 LanguageServerId(server.id as usize),
564 LanguageServerStatus {
565 name: server.name,
566 pending_work: Default::default(),
567 has_pending_diagnostic_updates: false,
568 progress_tokens: Default::default(),
569 },
570 )
571 })
572 .collect(),
573 last_workspace_edits_by_language_server: Default::default(),
574 opened_buffers: Default::default(),
575 buffers_being_formatted: Default::default(),
576 buffer_snapshots: Default::default(),
577 nonce: StdRng::from_entropy().gen(),
578 terminals: Terminals {
579 local_handles: Vec::new(),
580 },
581 copilot_enabled: Copilot::global(cx).is_some(),
582 };
583 for worktree in worktrees {
584 let _ = this.add_worktree(&worktree, cx);
585 }
586 this
587 });
588 let subscription = subscription.set_model(&this, &mut cx);
589
590 let user_ids = response
591 .payload
592 .collaborators
593 .iter()
594 .map(|peer| peer.user_id)
595 .collect();
596 user_store
597 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
598 .await?;
599
600 this.update(&mut cx, |this, cx| {
601 this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
602 this.client_subscriptions.push(subscription);
603 anyhow::Ok(())
604 })?;
605
606 Ok(this)
607 }
608
609 #[cfg(any(test, feature = "test-support"))]
610 pub async fn test(
611 fs: Arc<dyn Fs>,
612 root_paths: impl IntoIterator<Item = &Path>,
613 cx: &mut gpui::TestAppContext,
614 ) -> ModelHandle<Project> {
615 let mut languages = LanguageRegistry::test();
616 languages.set_executor(cx.background());
617 let http_client = util::http::FakeHttpClient::with_404_response();
618 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
619 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
620 let project =
621 cx.update(|cx| Project::local(client, user_store, Arc::new(languages), fs, cx));
622 for path in root_paths {
623 let (tree, _) = project
624 .update(cx, |project, cx| {
625 project.find_or_create_local_worktree(path, true, cx)
626 })
627 .await
628 .unwrap();
629 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
630 .await;
631 }
632 project
633 }
634
635 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
636 let settings = all_language_settings(cx);
637
638 let mut language_servers_to_start = Vec::new();
639 for buffer in self.opened_buffers.values() {
640 if let Some(buffer) = buffer.upgrade(cx) {
641 let buffer = buffer.read(cx);
642 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
643 {
644 if settings
645 .language(Some(&language.name()))
646 .enable_language_server
647 {
648 let worktree = file.worktree.read(cx);
649 language_servers_to_start.push((
650 worktree.id(),
651 worktree.as_local().unwrap().abs_path().clone(),
652 language.clone(),
653 ));
654 }
655 }
656 }
657 }
658
659 let mut language_servers_to_stop = Vec::new();
660 for language in self.languages.to_vec() {
661 for lsp_adapter in language.lsp_adapters() {
662 if !settings
663 .language(Some(&language.name()))
664 .enable_language_server
665 {
666 let lsp_name = &lsp_adapter.name;
667 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
668 if lsp_name == started_lsp_name {
669 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
670 }
671 }
672 }
673 }
674 }
675
676 // Stop all newly-disabled language servers.
677 for (worktree_id, adapter_name) in language_servers_to_stop {
678 self.stop_language_server(worktree_id, adapter_name, cx)
679 .detach();
680 }
681
682 // Start all the newly-enabled language servers.
683 for (worktree_id, worktree_path, language) in language_servers_to_start {
684 self.start_language_servers(worktree_id, worktree_path, language, cx);
685 }
686
687 if !self.copilot_enabled && Copilot::global(cx).is_some() {
688 self.copilot_enabled = true;
689 for buffer in self.opened_buffers.values() {
690 if let Some(buffer) = buffer.upgrade(cx) {
691 self.register_buffer_with_copilot(&buffer, cx);
692 }
693 }
694 }
695
696 cx.notify();
697 }
698
699 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
700 self.opened_buffers
701 .get(&remote_id)
702 .and_then(|buffer| buffer.upgrade(cx))
703 }
704
705 pub fn languages(&self) -> &Arc<LanguageRegistry> {
706 &self.languages
707 }
708
709 pub fn client(&self) -> Arc<Client> {
710 self.client.clone()
711 }
712
713 pub fn user_store(&self) -> ModelHandle<UserStore> {
714 self.user_store.clone()
715 }
716
717 #[cfg(any(test, feature = "test-support"))]
718 pub fn opened_buffers(&self, cx: &AppContext) -> Vec<ModelHandle<Buffer>> {
719 self.opened_buffers
720 .values()
721 .filter_map(|b| b.upgrade(cx))
722 .collect()
723 }
724
725 #[cfg(any(test, feature = "test-support"))]
726 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
727 let path = path.into();
728 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
729 self.opened_buffers.iter().any(|(_, buffer)| {
730 if let Some(buffer) = buffer.upgrade(cx) {
731 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
732 if file.worktree == worktree && file.path() == &path.path {
733 return true;
734 }
735 }
736 }
737 false
738 })
739 } else {
740 false
741 }
742 }
743
744 pub fn fs(&self) -> &Arc<dyn Fs> {
745 &self.fs
746 }
747
748 pub fn remote_id(&self) -> Option<u64> {
749 match self.client_state.as_ref()? {
750 ProjectClientState::Local { remote_id, .. }
751 | ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
752 }
753 }
754
755 pub fn replica_id(&self) -> ReplicaId {
756 match &self.client_state {
757 Some(ProjectClientState::Remote { replica_id, .. }) => *replica_id,
758 _ => 0,
759 }
760 }
761
762 fn metadata_changed(&mut self, cx: &mut ModelContext<Self>) {
763 if let Some(ProjectClientState::Local { updates_tx, .. }) = &mut self.client_state {
764 updates_tx
765 .unbounded_send(LocalProjectUpdate::WorktreesChanged)
766 .ok();
767 }
768 cx.notify();
769 }
770
771 pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
772 &self.collaborators
773 }
774
775 /// Collect all worktrees, including ones that don't appear in the project panel
776 pub fn worktrees<'a>(
777 &'a self,
778 cx: &'a AppContext,
779 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
780 self.worktrees
781 .iter()
782 .filter_map(move |worktree| worktree.upgrade(cx))
783 }
784
785 /// Collect all user-visible worktrees, the ones that appear in the project panel
786 pub fn visible_worktrees<'a>(
787 &'a self,
788 cx: &'a AppContext,
789 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
790 self.worktrees.iter().filter_map(|worktree| {
791 worktree.upgrade(cx).and_then(|worktree| {
792 if worktree.read(cx).is_visible() {
793 Some(worktree)
794 } else {
795 None
796 }
797 })
798 })
799 }
800
801 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
802 self.visible_worktrees(cx)
803 .map(|tree| tree.read(cx).root_name())
804 }
805
806 pub fn worktree_for_id(
807 &self,
808 id: WorktreeId,
809 cx: &AppContext,
810 ) -> Option<ModelHandle<Worktree>> {
811 self.worktrees(cx)
812 .find(|worktree| worktree.read(cx).id() == id)
813 }
814
815 pub fn worktree_for_entry(
816 &self,
817 entry_id: ProjectEntryId,
818 cx: &AppContext,
819 ) -> Option<ModelHandle<Worktree>> {
820 self.worktrees(cx)
821 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
822 }
823
824 pub fn worktree_id_for_entry(
825 &self,
826 entry_id: ProjectEntryId,
827 cx: &AppContext,
828 ) -> Option<WorktreeId> {
829 self.worktree_for_entry(entry_id, cx)
830 .map(|worktree| worktree.read(cx).id())
831 }
832
833 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
834 paths.iter().all(|path| self.contains_path(path, cx))
835 }
836
837 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
838 for worktree in self.worktrees(cx) {
839 let worktree = worktree.read(cx).as_local();
840 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
841 return true;
842 }
843 }
844 false
845 }
846
847 pub fn create_entry(
848 &mut self,
849 project_path: impl Into<ProjectPath>,
850 is_directory: bool,
851 cx: &mut ModelContext<Self>,
852 ) -> Option<Task<Result<Entry>>> {
853 let project_path = project_path.into();
854 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
855 if self.is_local() {
856 Some(worktree.update(cx, |worktree, cx| {
857 worktree
858 .as_local_mut()
859 .unwrap()
860 .create_entry(project_path.path, is_directory, cx)
861 }))
862 } else {
863 let client = self.client.clone();
864 let project_id = self.remote_id().unwrap();
865 Some(cx.spawn_weak(|_, mut cx| async move {
866 let response = client
867 .request(proto::CreateProjectEntry {
868 worktree_id: project_path.worktree_id.to_proto(),
869 project_id,
870 path: project_path.path.to_string_lossy().into(),
871 is_directory,
872 })
873 .await?;
874 let entry = response
875 .entry
876 .ok_or_else(|| anyhow!("missing entry in response"))?;
877 worktree
878 .update(&mut cx, |worktree, cx| {
879 worktree.as_remote_mut().unwrap().insert_entry(
880 entry,
881 response.worktree_scan_id as usize,
882 cx,
883 )
884 })
885 .await
886 }))
887 }
888 }
889
890 pub fn copy_entry(
891 &mut self,
892 entry_id: ProjectEntryId,
893 new_path: impl Into<Arc<Path>>,
894 cx: &mut ModelContext<Self>,
895 ) -> Option<Task<Result<Entry>>> {
896 let worktree = self.worktree_for_entry(entry_id, cx)?;
897 let new_path = new_path.into();
898 if self.is_local() {
899 worktree.update(cx, |worktree, cx| {
900 worktree
901 .as_local_mut()
902 .unwrap()
903 .copy_entry(entry_id, new_path, cx)
904 })
905 } else {
906 let client = self.client.clone();
907 let project_id = self.remote_id().unwrap();
908
909 Some(cx.spawn_weak(|_, mut cx| async move {
910 let response = client
911 .request(proto::CopyProjectEntry {
912 project_id,
913 entry_id: entry_id.to_proto(),
914 new_path: new_path.to_string_lossy().into(),
915 })
916 .await?;
917 let entry = response
918 .entry
919 .ok_or_else(|| anyhow!("missing entry in response"))?;
920 worktree
921 .update(&mut cx, |worktree, cx| {
922 worktree.as_remote_mut().unwrap().insert_entry(
923 entry,
924 response.worktree_scan_id as usize,
925 cx,
926 )
927 })
928 .await
929 }))
930 }
931 }
932
933 pub fn rename_entry(
934 &mut self,
935 entry_id: ProjectEntryId,
936 new_path: impl Into<Arc<Path>>,
937 cx: &mut ModelContext<Self>,
938 ) -> Option<Task<Result<Entry>>> {
939 let worktree = self.worktree_for_entry(entry_id, cx)?;
940 let new_path = new_path.into();
941 if self.is_local() {
942 worktree.update(cx, |worktree, cx| {
943 worktree
944 .as_local_mut()
945 .unwrap()
946 .rename_entry(entry_id, new_path, cx)
947 })
948 } else {
949 let client = self.client.clone();
950 let project_id = self.remote_id().unwrap();
951
952 Some(cx.spawn_weak(|_, mut cx| async move {
953 let response = client
954 .request(proto::RenameProjectEntry {
955 project_id,
956 entry_id: entry_id.to_proto(),
957 new_path: new_path.to_string_lossy().into(),
958 })
959 .await?;
960 let entry = response
961 .entry
962 .ok_or_else(|| anyhow!("missing entry in response"))?;
963 worktree
964 .update(&mut cx, |worktree, cx| {
965 worktree.as_remote_mut().unwrap().insert_entry(
966 entry,
967 response.worktree_scan_id as usize,
968 cx,
969 )
970 })
971 .await
972 }))
973 }
974 }
975
976 pub fn delete_entry(
977 &mut self,
978 entry_id: ProjectEntryId,
979 cx: &mut ModelContext<Self>,
980 ) -> Option<Task<Result<()>>> {
981 let worktree = self.worktree_for_entry(entry_id, cx)?;
982
983 cx.emit(Event::DeletedEntry(entry_id));
984
985 if self.is_local() {
986 worktree.update(cx, |worktree, cx| {
987 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
988 })
989 } else {
990 let client = self.client.clone();
991 let project_id = self.remote_id().unwrap();
992 Some(cx.spawn_weak(|_, mut cx| async move {
993 let response = client
994 .request(proto::DeleteProjectEntry {
995 project_id,
996 entry_id: entry_id.to_proto(),
997 })
998 .await?;
999 worktree
1000 .update(&mut cx, move |worktree, cx| {
1001 worktree.as_remote_mut().unwrap().delete_entry(
1002 entry_id,
1003 response.worktree_scan_id as usize,
1004 cx,
1005 )
1006 })
1007 .await
1008 }))
1009 }
1010 }
1011
1012 pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Result<()> {
1013 if self.client_state.is_some() {
1014 return Err(anyhow!("project was already shared"));
1015 }
1016 self.client_subscriptions.push(
1017 self.client
1018 .subscribe_to_entity(project_id)?
1019 .set_model(&cx.handle(), &mut cx.to_async()),
1020 );
1021
1022 for open_buffer in self.opened_buffers.values_mut() {
1023 match open_buffer {
1024 OpenBuffer::Strong(_) => {}
1025 OpenBuffer::Weak(buffer) => {
1026 if let Some(buffer) = buffer.upgrade(cx) {
1027 *open_buffer = OpenBuffer::Strong(buffer);
1028 }
1029 }
1030 OpenBuffer::Operations(_) => unreachable!(),
1031 }
1032 }
1033
1034 for worktree_handle in self.worktrees.iter_mut() {
1035 match worktree_handle {
1036 WorktreeHandle::Strong(_) => {}
1037 WorktreeHandle::Weak(worktree) => {
1038 if let Some(worktree) = worktree.upgrade(cx) {
1039 *worktree_handle = WorktreeHandle::Strong(worktree);
1040 }
1041 }
1042 }
1043 }
1044
1045 for (server_id, status) in &self.language_server_statuses {
1046 self.client
1047 .send(proto::StartLanguageServer {
1048 project_id,
1049 server: Some(proto::LanguageServer {
1050 id: server_id.0 as u64,
1051 name: status.name.clone(),
1052 }),
1053 })
1054 .log_err();
1055 }
1056
1057 let (updates_tx, mut updates_rx) = mpsc::unbounded();
1058 let client = self.client.clone();
1059 self.client_state = Some(ProjectClientState::Local {
1060 remote_id: project_id,
1061 updates_tx,
1062 _send_updates: cx.spawn_weak(move |this, mut cx| async move {
1063 while let Some(update) = updates_rx.next().await {
1064 let Some(this) = this.upgrade(&cx) else { break };
1065
1066 match update {
1067 LocalProjectUpdate::WorktreesChanged => {
1068 let worktrees = this
1069 .read_with(&cx, |this, cx| this.worktrees(cx).collect::<Vec<_>>());
1070 let update_project = this
1071 .read_with(&cx, |this, cx| {
1072 this.client.request(proto::UpdateProject {
1073 project_id,
1074 worktrees: this.worktree_metadata_protos(cx),
1075 })
1076 })
1077 .await;
1078 if update_project.is_ok() {
1079 for worktree in worktrees {
1080 worktree.update(&mut cx, |worktree, cx| {
1081 let worktree = worktree.as_local_mut().unwrap();
1082 worktree.share(project_id, cx).detach_and_log_err(cx)
1083 });
1084 }
1085 }
1086 }
1087 LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id } => {
1088 let buffer = this.update(&mut cx, |this, _| {
1089 let buffer = this.opened_buffers.get(&buffer_id).unwrap();
1090 let shared_buffers =
1091 this.shared_buffers.entry(peer_id).or_default();
1092 if shared_buffers.insert(buffer_id) {
1093 if let OpenBuffer::Strong(buffer) = buffer {
1094 Some(buffer.clone())
1095 } else {
1096 None
1097 }
1098 } else {
1099 None
1100 }
1101 });
1102
1103 let Some(buffer) = buffer else { continue };
1104 let operations =
1105 buffer.read_with(&cx, |b, cx| b.serialize_ops(None, cx));
1106 let operations = operations.await;
1107 let state = buffer.read_with(&cx, |buffer, _| buffer.to_proto());
1108
1109 let initial_state = proto::CreateBufferForPeer {
1110 project_id,
1111 peer_id: Some(peer_id),
1112 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
1113 };
1114 if client.send(initial_state).log_err().is_some() {
1115 let client = client.clone();
1116 cx.background()
1117 .spawn(async move {
1118 let mut chunks = split_operations(operations).peekable();
1119 while let Some(chunk) = chunks.next() {
1120 let is_last = chunks.peek().is_none();
1121 client.send(proto::CreateBufferForPeer {
1122 project_id,
1123 peer_id: Some(peer_id),
1124 variant: Some(
1125 proto::create_buffer_for_peer::Variant::Chunk(
1126 proto::BufferChunk {
1127 buffer_id,
1128 operations: chunk,
1129 is_last,
1130 },
1131 ),
1132 ),
1133 })?;
1134 }
1135 anyhow::Ok(())
1136 })
1137 .await
1138 .log_err();
1139 }
1140 }
1141 }
1142 }
1143 }),
1144 });
1145
1146 self.metadata_changed(cx);
1147 cx.emit(Event::RemoteIdChanged(Some(project_id)));
1148 cx.notify();
1149 Ok(())
1150 }
1151
1152 pub fn reshared(
1153 &mut self,
1154 message: proto::ResharedProject,
1155 cx: &mut ModelContext<Self>,
1156 ) -> Result<()> {
1157 self.shared_buffers.clear();
1158 self.set_collaborators_from_proto(message.collaborators, cx)?;
1159 self.metadata_changed(cx);
1160 Ok(())
1161 }
1162
1163 pub fn rejoined(
1164 &mut self,
1165 message: proto::RejoinedProject,
1166 message_id: u32,
1167 cx: &mut ModelContext<Self>,
1168 ) -> Result<()> {
1169 self.join_project_response_message_id = message_id;
1170 self.set_worktrees_from_proto(message.worktrees, cx)?;
1171 self.set_collaborators_from_proto(message.collaborators, cx)?;
1172 self.language_server_statuses = message
1173 .language_servers
1174 .into_iter()
1175 .map(|server| {
1176 (
1177 LanguageServerId(server.id as usize),
1178 LanguageServerStatus {
1179 name: server.name,
1180 pending_work: Default::default(),
1181 has_pending_diagnostic_updates: false,
1182 progress_tokens: Default::default(),
1183 },
1184 )
1185 })
1186 .collect();
1187 self.buffer_ordered_messages_tx
1188 .unbounded_send(BufferOrderedMessage::Resync)
1189 .unwrap();
1190 cx.notify();
1191 Ok(())
1192 }
1193
1194 pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1195 self.unshare_internal(cx)?;
1196 self.metadata_changed(cx);
1197 cx.notify();
1198 Ok(())
1199 }
1200
1201 fn unshare_internal(&mut self, cx: &mut AppContext) -> Result<()> {
1202 if self.is_remote() {
1203 return Err(anyhow!("attempted to unshare a remote project"));
1204 }
1205
1206 if let Some(ProjectClientState::Local { remote_id, .. }) = self.client_state.take() {
1207 self.collaborators.clear();
1208 self.shared_buffers.clear();
1209 self.client_subscriptions.clear();
1210
1211 for worktree_handle in self.worktrees.iter_mut() {
1212 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1213 let is_visible = worktree.update(cx, |worktree, _| {
1214 worktree.as_local_mut().unwrap().unshare();
1215 worktree.is_visible()
1216 });
1217 if !is_visible {
1218 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1219 }
1220 }
1221 }
1222
1223 for open_buffer in self.opened_buffers.values_mut() {
1224 // Wake up any tasks waiting for peers' edits to this buffer.
1225 if let Some(buffer) = open_buffer.upgrade(cx) {
1226 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1227 }
1228
1229 if let OpenBuffer::Strong(buffer) = open_buffer {
1230 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1231 }
1232 }
1233
1234 self.client.send(proto::UnshareProject {
1235 project_id: remote_id,
1236 })?;
1237
1238 Ok(())
1239 } else {
1240 Err(anyhow!("attempted to unshare an unshared project"))
1241 }
1242 }
1243
1244 pub fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1245 self.disconnected_from_host_internal(cx);
1246 cx.emit(Event::DisconnectedFromHost);
1247 cx.notify();
1248 }
1249
1250 fn disconnected_from_host_internal(&mut self, cx: &mut AppContext) {
1251 if let Some(ProjectClientState::Remote {
1252 sharing_has_stopped,
1253 ..
1254 }) = &mut self.client_state
1255 {
1256 *sharing_has_stopped = true;
1257
1258 self.collaborators.clear();
1259
1260 for worktree in &self.worktrees {
1261 if let Some(worktree) = worktree.upgrade(cx) {
1262 worktree.update(cx, |worktree, _| {
1263 if let Some(worktree) = worktree.as_remote_mut() {
1264 worktree.disconnected_from_host();
1265 }
1266 });
1267 }
1268 }
1269
1270 for open_buffer in self.opened_buffers.values_mut() {
1271 // Wake up any tasks waiting for peers' edits to this buffer.
1272 if let Some(buffer) = open_buffer.upgrade(cx) {
1273 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1274 }
1275
1276 if let OpenBuffer::Strong(buffer) = open_buffer {
1277 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1278 }
1279 }
1280
1281 // Wake up all futures currently waiting on a buffer to get opened,
1282 // to give them a chance to fail now that we've disconnected.
1283 *self.opened_buffer.0.borrow_mut() = ();
1284 }
1285 }
1286
1287 pub fn close(&mut self, cx: &mut ModelContext<Self>) {
1288 cx.emit(Event::Closed);
1289 }
1290
1291 pub fn is_read_only(&self) -> bool {
1292 match &self.client_state {
1293 Some(ProjectClientState::Remote {
1294 sharing_has_stopped,
1295 ..
1296 }) => *sharing_has_stopped,
1297 _ => false,
1298 }
1299 }
1300
1301 pub fn is_local(&self) -> bool {
1302 match &self.client_state {
1303 Some(ProjectClientState::Remote { .. }) => false,
1304 _ => true,
1305 }
1306 }
1307
1308 pub fn is_remote(&self) -> bool {
1309 !self.is_local()
1310 }
1311
1312 pub fn create_buffer(
1313 &mut self,
1314 text: &str,
1315 language: Option<Arc<Language>>,
1316 cx: &mut ModelContext<Self>,
1317 ) -> Result<ModelHandle<Buffer>> {
1318 if self.is_remote() {
1319 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1320 }
1321
1322 let buffer = cx.add_model(|cx| {
1323 Buffer::new(self.replica_id(), text, cx)
1324 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1325 });
1326 self.register_buffer(&buffer, cx)?;
1327 Ok(buffer)
1328 }
1329
1330 pub fn open_path(
1331 &mut self,
1332 path: impl Into<ProjectPath>,
1333 cx: &mut ModelContext<Self>,
1334 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1335 let task = self.open_buffer(path, cx);
1336 cx.spawn_weak(|_, cx| async move {
1337 let buffer = task.await?;
1338 let project_entry_id = buffer
1339 .read_with(&cx, |buffer, cx| {
1340 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1341 })
1342 .ok_or_else(|| anyhow!("no project entry"))?;
1343
1344 let buffer: &AnyModelHandle = &buffer;
1345 Ok((project_entry_id, buffer.clone()))
1346 })
1347 }
1348
1349 pub fn open_local_buffer(
1350 &mut self,
1351 abs_path: impl AsRef<Path>,
1352 cx: &mut ModelContext<Self>,
1353 ) -> Task<Result<ModelHandle<Buffer>>> {
1354 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1355 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1356 } else {
1357 Task::ready(Err(anyhow!("no such path")))
1358 }
1359 }
1360
1361 pub fn open_buffer(
1362 &mut self,
1363 path: impl Into<ProjectPath>,
1364 cx: &mut ModelContext<Self>,
1365 ) -> Task<Result<ModelHandle<Buffer>>> {
1366 let project_path = path.into();
1367 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1368 worktree
1369 } else {
1370 return Task::ready(Err(anyhow!("no such worktree")));
1371 };
1372
1373 // If there is already a buffer for the given path, then return it.
1374 let existing_buffer = self.get_open_buffer(&project_path, cx);
1375 if let Some(existing_buffer) = existing_buffer {
1376 return Task::ready(Ok(existing_buffer));
1377 }
1378
1379 let loading_watch = match self.loading_buffers_by_path.entry(project_path.clone()) {
1380 // If the given path is already being loaded, then wait for that existing
1381 // task to complete and return the same buffer.
1382 hash_map::Entry::Occupied(e) => e.get().clone(),
1383
1384 // Otherwise, record the fact that this path is now being loaded.
1385 hash_map::Entry::Vacant(entry) => {
1386 let (mut tx, rx) = postage::watch::channel();
1387 entry.insert(rx.clone());
1388
1389 let load_buffer = if worktree.read(cx).is_local() {
1390 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1391 } else {
1392 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1393 };
1394
1395 cx.spawn(move |this, mut cx| async move {
1396 let load_result = load_buffer.await;
1397 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1398 // Record the fact that the buffer is no longer loading.
1399 this.loading_buffers_by_path.remove(&project_path);
1400 let buffer = load_result.map_err(Arc::new)?;
1401 Ok(buffer)
1402 }));
1403 })
1404 .detach();
1405 rx
1406 }
1407 };
1408
1409 cx.foreground().spawn(async move {
1410 pump_loading_buffer_reciever(loading_watch)
1411 .await
1412 .map_err(|error| anyhow!("{}", error))
1413 })
1414 }
1415
1416 fn open_local_buffer_internal(
1417 &mut self,
1418 path: &Arc<Path>,
1419 worktree: &ModelHandle<Worktree>,
1420 cx: &mut ModelContext<Self>,
1421 ) -> Task<Result<ModelHandle<Buffer>>> {
1422 let buffer_id = post_inc(&mut self.next_buffer_id);
1423 let load_buffer = worktree.update(cx, |worktree, cx| {
1424 let worktree = worktree.as_local_mut().unwrap();
1425 worktree.load_buffer(buffer_id, path, cx)
1426 });
1427 cx.spawn(|this, mut cx| async move {
1428 let buffer = load_buffer.await?;
1429 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1430 Ok(buffer)
1431 })
1432 }
1433
1434 fn open_remote_buffer_internal(
1435 &mut self,
1436 path: &Arc<Path>,
1437 worktree: &ModelHandle<Worktree>,
1438 cx: &mut ModelContext<Self>,
1439 ) -> Task<Result<ModelHandle<Buffer>>> {
1440 let rpc = self.client.clone();
1441 let project_id = self.remote_id().unwrap();
1442 let remote_worktree_id = worktree.read(cx).id();
1443 let path = path.clone();
1444 let path_string = path.to_string_lossy().to_string();
1445 cx.spawn(|this, mut cx| async move {
1446 let response = rpc
1447 .request(proto::OpenBufferByPath {
1448 project_id,
1449 worktree_id: remote_worktree_id.to_proto(),
1450 path: path_string,
1451 })
1452 .await?;
1453 this.update(&mut cx, |this, cx| {
1454 this.wait_for_remote_buffer(response.buffer_id, cx)
1455 })
1456 .await
1457 })
1458 }
1459
1460 /// LanguageServerName is owned, because it is inserted into a map
1461 fn open_local_buffer_via_lsp(
1462 &mut self,
1463 abs_path: lsp::Url,
1464 language_server_id: LanguageServerId,
1465 language_server_name: LanguageServerName,
1466 cx: &mut ModelContext<Self>,
1467 ) -> Task<Result<ModelHandle<Buffer>>> {
1468 cx.spawn(|this, mut cx| async move {
1469 let abs_path = abs_path
1470 .to_file_path()
1471 .map_err(|_| anyhow!("can't convert URI to path"))?;
1472 let (worktree, relative_path) = if let Some(result) =
1473 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1474 {
1475 result
1476 } else {
1477 let worktree = this
1478 .update(&mut cx, |this, cx| {
1479 this.create_local_worktree(&abs_path, false, cx)
1480 })
1481 .await?;
1482 this.update(&mut cx, |this, cx| {
1483 this.language_server_ids.insert(
1484 (worktree.read(cx).id(), language_server_name),
1485 language_server_id,
1486 );
1487 });
1488 (worktree, PathBuf::new())
1489 };
1490
1491 let project_path = ProjectPath {
1492 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1493 path: relative_path.into(),
1494 };
1495 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1496 .await
1497 })
1498 }
1499
1500 pub fn open_buffer_by_id(
1501 &mut self,
1502 id: u64,
1503 cx: &mut ModelContext<Self>,
1504 ) -> Task<Result<ModelHandle<Buffer>>> {
1505 if let Some(buffer) = self.buffer_for_id(id, cx) {
1506 Task::ready(Ok(buffer))
1507 } else if self.is_local() {
1508 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1509 } else if let Some(project_id) = self.remote_id() {
1510 let request = self
1511 .client
1512 .request(proto::OpenBufferById { project_id, id });
1513 cx.spawn(|this, mut cx| async move {
1514 let buffer_id = request.await?.buffer_id;
1515 this.update(&mut cx, |this, cx| {
1516 this.wait_for_remote_buffer(buffer_id, cx)
1517 })
1518 .await
1519 })
1520 } else {
1521 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1522 }
1523 }
1524
1525 pub fn save_buffers(
1526 &self,
1527 buffers: HashSet<ModelHandle<Buffer>>,
1528 cx: &mut ModelContext<Self>,
1529 ) -> Task<Result<()>> {
1530 cx.spawn(|this, mut cx| async move {
1531 let save_tasks = buffers
1532 .into_iter()
1533 .map(|buffer| this.update(&mut cx, |this, cx| this.save_buffer(buffer, cx)));
1534 try_join_all(save_tasks).await?;
1535 Ok(())
1536 })
1537 }
1538
1539 pub fn save_buffer(
1540 &self,
1541 buffer: ModelHandle<Buffer>,
1542 cx: &mut ModelContext<Self>,
1543 ) -> Task<Result<(clock::Global, RopeFingerprint, SystemTime)>> {
1544 let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1545 return Task::ready(Err(anyhow!("buffer doesn't have a file")));
1546 };
1547 let worktree = file.worktree.clone();
1548 let path = file.path.clone();
1549 worktree.update(cx, |worktree, cx| match worktree {
1550 Worktree::Local(worktree) => worktree.save_buffer(buffer, path, false, cx),
1551 Worktree::Remote(worktree) => worktree.save_buffer(buffer, cx),
1552 })
1553 }
1554
1555 pub fn save_buffer_as(
1556 &mut self,
1557 buffer: ModelHandle<Buffer>,
1558 abs_path: PathBuf,
1559 cx: &mut ModelContext<Self>,
1560 ) -> Task<Result<()>> {
1561 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1562 let old_file = File::from_dyn(buffer.read(cx).file())
1563 .filter(|f| f.is_local())
1564 .cloned();
1565 cx.spawn(|this, mut cx| async move {
1566 if let Some(old_file) = &old_file {
1567 this.update(&mut cx, |this, cx| {
1568 this.unregister_buffer_from_language_servers(&buffer, old_file, cx);
1569 });
1570 }
1571 let (worktree, path) = worktree_task.await?;
1572 worktree
1573 .update(&mut cx, |worktree, cx| match worktree {
1574 Worktree::Local(worktree) => {
1575 worktree.save_buffer(buffer.clone(), path.into(), true, cx)
1576 }
1577 Worktree::Remote(_) => panic!("cannot remote buffers as new files"),
1578 })
1579 .await?;
1580 this.update(&mut cx, |this, cx| {
1581 this.detect_language_for_buffer(&buffer, cx);
1582 this.register_buffer_with_language_servers(&buffer, cx);
1583 });
1584 Ok(())
1585 })
1586 }
1587
1588 pub fn get_open_buffer(
1589 &mut self,
1590 path: &ProjectPath,
1591 cx: &mut ModelContext<Self>,
1592 ) -> Option<ModelHandle<Buffer>> {
1593 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1594 self.opened_buffers.values().find_map(|buffer| {
1595 let buffer = buffer.upgrade(cx)?;
1596 let file = File::from_dyn(buffer.read(cx).file())?;
1597 if file.worktree == worktree && file.path() == &path.path {
1598 Some(buffer)
1599 } else {
1600 None
1601 }
1602 })
1603 }
1604
1605 fn register_buffer(
1606 &mut self,
1607 buffer: &ModelHandle<Buffer>,
1608 cx: &mut ModelContext<Self>,
1609 ) -> Result<()> {
1610 buffer.update(cx, |buffer, _| {
1611 buffer.set_language_registry(self.languages.clone())
1612 });
1613
1614 let remote_id = buffer.read(cx).remote_id();
1615 let is_remote = self.is_remote();
1616 let open_buffer = if is_remote || self.is_shared() {
1617 OpenBuffer::Strong(buffer.clone())
1618 } else {
1619 OpenBuffer::Weak(buffer.downgrade())
1620 };
1621
1622 match self.opened_buffers.entry(remote_id) {
1623 hash_map::Entry::Vacant(entry) => {
1624 entry.insert(open_buffer);
1625 }
1626 hash_map::Entry::Occupied(mut entry) => {
1627 if let OpenBuffer::Operations(operations) = entry.get_mut() {
1628 buffer.update(cx, |b, cx| b.apply_ops(operations.drain(..), cx))?;
1629 } else if entry.get().upgrade(cx).is_some() {
1630 if is_remote {
1631 return Ok(());
1632 } else {
1633 debug_panic!("buffer {} was already registered", remote_id);
1634 Err(anyhow!("buffer {} was already registered", remote_id))?;
1635 }
1636 }
1637 entry.insert(open_buffer);
1638 }
1639 }
1640 cx.subscribe(buffer, |this, buffer, event, cx| {
1641 this.on_buffer_event(buffer, event, cx);
1642 })
1643 .detach();
1644
1645 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
1646 if file.is_local {
1647 self.local_buffer_ids_by_path.insert(
1648 ProjectPath {
1649 worktree_id: file.worktree_id(cx),
1650 path: file.path.clone(),
1651 },
1652 remote_id,
1653 );
1654
1655 self.local_buffer_ids_by_entry_id
1656 .insert(file.entry_id, remote_id);
1657 }
1658 }
1659
1660 self.detect_language_for_buffer(buffer, cx);
1661 self.register_buffer_with_language_servers(buffer, cx);
1662 self.register_buffer_with_copilot(buffer, cx);
1663 cx.observe_release(buffer, |this, buffer, cx| {
1664 if let Some(file) = File::from_dyn(buffer.file()) {
1665 if file.is_local() {
1666 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1667 for server in this.language_servers_for_buffer(buffer, cx) {
1668 server
1669 .1
1670 .notify::<lsp::notification::DidCloseTextDocument>(
1671 lsp::DidCloseTextDocumentParams {
1672 text_document: lsp::TextDocumentIdentifier::new(uri.clone()),
1673 },
1674 )
1675 .log_err();
1676 }
1677 }
1678 }
1679 })
1680 .detach();
1681
1682 *self.opened_buffer.0.borrow_mut() = ();
1683 Ok(())
1684 }
1685
1686 fn register_buffer_with_language_servers(
1687 &mut self,
1688 buffer_handle: &ModelHandle<Buffer>,
1689 cx: &mut ModelContext<Self>,
1690 ) {
1691 let buffer = buffer_handle.read(cx);
1692 let buffer_id = buffer.remote_id();
1693
1694 if let Some(file) = File::from_dyn(buffer.file()) {
1695 if !file.is_local() {
1696 return;
1697 }
1698
1699 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1700 let initial_snapshot = buffer.text_snapshot();
1701 let language = buffer.language().cloned();
1702 let worktree_id = file.worktree_id(cx);
1703
1704 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1705 for (server_id, diagnostics) in local_worktree.diagnostics_for_path(file.path()) {
1706 self.update_buffer_diagnostics(buffer_handle, server_id, None, diagnostics, cx)
1707 .log_err();
1708 }
1709 }
1710
1711 if let Some(language) = language {
1712 for adapter in language.lsp_adapters() {
1713 let language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1714 let server = self
1715 .language_server_ids
1716 .get(&(worktree_id, adapter.name.clone()))
1717 .and_then(|id| self.language_servers.get(id))
1718 .and_then(|server_state| {
1719 if let LanguageServerState::Running { server, .. } = server_state {
1720 Some(server.clone())
1721 } else {
1722 None
1723 }
1724 });
1725 let server = match server {
1726 Some(server) => server,
1727 None => continue,
1728 };
1729
1730 server
1731 .notify::<lsp::notification::DidOpenTextDocument>(
1732 lsp::DidOpenTextDocumentParams {
1733 text_document: lsp::TextDocumentItem::new(
1734 uri.clone(),
1735 language_id.unwrap_or_default(),
1736 0,
1737 initial_snapshot.text(),
1738 ),
1739 },
1740 )
1741 .log_err();
1742
1743 buffer_handle.update(cx, |buffer, cx| {
1744 buffer.set_completion_triggers(
1745 server
1746 .capabilities()
1747 .completion_provider
1748 .as_ref()
1749 .and_then(|provider| provider.trigger_characters.clone())
1750 .unwrap_or_default(),
1751 cx,
1752 );
1753 });
1754
1755 let snapshot = LspBufferSnapshot {
1756 version: 0,
1757 snapshot: initial_snapshot.clone(),
1758 };
1759 self.buffer_snapshots
1760 .entry(buffer_id)
1761 .or_default()
1762 .insert(server.server_id(), vec![snapshot]);
1763 }
1764 }
1765 }
1766 }
1767
1768 fn unregister_buffer_from_language_servers(
1769 &mut self,
1770 buffer: &ModelHandle<Buffer>,
1771 old_file: &File,
1772 cx: &mut ModelContext<Self>,
1773 ) {
1774 let old_path = match old_file.as_local() {
1775 Some(local) => local.abs_path(cx),
1776 None => return,
1777 };
1778
1779 buffer.update(cx, |buffer, cx| {
1780 let worktree_id = old_file.worktree_id(cx);
1781 let ids = &self.language_server_ids;
1782
1783 let language = buffer.language().cloned();
1784 let adapters = language.iter().flat_map(|language| language.lsp_adapters());
1785 for &server_id in adapters.flat_map(|a| ids.get(&(worktree_id, a.name.clone()))) {
1786 buffer.update_diagnostics(server_id, Default::default(), cx);
1787 }
1788
1789 self.buffer_snapshots.remove(&buffer.remote_id());
1790 let file_url = lsp::Url::from_file_path(old_path).unwrap();
1791 for (_, language_server) in self.language_servers_for_buffer(buffer, cx) {
1792 language_server
1793 .notify::<lsp::notification::DidCloseTextDocument>(
1794 lsp::DidCloseTextDocumentParams {
1795 text_document: lsp::TextDocumentIdentifier::new(file_url.clone()),
1796 },
1797 )
1798 .log_err();
1799 }
1800 });
1801 }
1802
1803 fn register_buffer_with_copilot(
1804 &self,
1805 buffer_handle: &ModelHandle<Buffer>,
1806 cx: &mut ModelContext<Self>,
1807 ) {
1808 if let Some(copilot) = Copilot::global(cx) {
1809 copilot.update(cx, |copilot, cx| copilot.register_buffer(buffer_handle, cx));
1810 }
1811 }
1812
1813 async fn send_buffer_ordered_messages(
1814 this: WeakModelHandle<Self>,
1815 rx: UnboundedReceiver<BufferOrderedMessage>,
1816 mut cx: AsyncAppContext,
1817 ) -> Option<()> {
1818 const MAX_BATCH_SIZE: usize = 128;
1819
1820 let mut operations_by_buffer_id = HashMap::default();
1821 async fn flush_operations(
1822 this: &ModelHandle<Project>,
1823 operations_by_buffer_id: &mut HashMap<u64, Vec<proto::Operation>>,
1824 needs_resync_with_host: &mut bool,
1825 is_local: bool,
1826 cx: &AsyncAppContext,
1827 ) {
1828 for (buffer_id, operations) in operations_by_buffer_id.drain() {
1829 let request = this.read_with(cx, |this, _| {
1830 let project_id = this.remote_id()?;
1831 Some(this.client.request(proto::UpdateBuffer {
1832 buffer_id,
1833 project_id,
1834 operations,
1835 }))
1836 });
1837 if let Some(request) = request {
1838 if request.await.is_err() && !is_local {
1839 *needs_resync_with_host = true;
1840 break;
1841 }
1842 }
1843 }
1844 }
1845
1846 let mut needs_resync_with_host = false;
1847 let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
1848
1849 while let Some(changes) = changes.next().await {
1850 let this = this.upgrade(&mut cx)?;
1851 let is_local = this.read_with(&cx, |this, _| this.is_local());
1852
1853 for change in changes {
1854 match change {
1855 BufferOrderedMessage::Operation {
1856 buffer_id,
1857 operation,
1858 } => {
1859 if needs_resync_with_host {
1860 continue;
1861 }
1862
1863 operations_by_buffer_id
1864 .entry(buffer_id)
1865 .or_insert(Vec::new())
1866 .push(operation);
1867 }
1868
1869 BufferOrderedMessage::Resync => {
1870 operations_by_buffer_id.clear();
1871 if this
1872 .update(&mut cx, |this, cx| this.synchronize_remote_buffers(cx))
1873 .await
1874 .is_ok()
1875 {
1876 needs_resync_with_host = false;
1877 }
1878 }
1879
1880 BufferOrderedMessage::LanguageServerUpdate {
1881 language_server_id,
1882 message,
1883 } => {
1884 flush_operations(
1885 &this,
1886 &mut operations_by_buffer_id,
1887 &mut needs_resync_with_host,
1888 is_local,
1889 &cx,
1890 )
1891 .await;
1892
1893 this.read_with(&cx, |this, _| {
1894 if let Some(project_id) = this.remote_id() {
1895 this.client
1896 .send(proto::UpdateLanguageServer {
1897 project_id,
1898 language_server_id: language_server_id.0 as u64,
1899 variant: Some(message),
1900 })
1901 .log_err();
1902 }
1903 });
1904 }
1905 }
1906 }
1907
1908 flush_operations(
1909 &this,
1910 &mut operations_by_buffer_id,
1911 &mut needs_resync_with_host,
1912 is_local,
1913 &cx,
1914 )
1915 .await;
1916 }
1917
1918 None
1919 }
1920
1921 fn on_buffer_event(
1922 &mut self,
1923 buffer: ModelHandle<Buffer>,
1924 event: &BufferEvent,
1925 cx: &mut ModelContext<Self>,
1926 ) -> Option<()> {
1927 match event {
1928 BufferEvent::Operation(operation) => {
1929 self.buffer_ordered_messages_tx
1930 .unbounded_send(BufferOrderedMessage::Operation {
1931 buffer_id: buffer.read(cx).remote_id(),
1932 operation: language::proto::serialize_operation(operation),
1933 })
1934 .ok();
1935 }
1936
1937 BufferEvent::Edited { .. } => {
1938 let buffer = buffer.read(cx);
1939 let file = File::from_dyn(buffer.file())?;
1940 let abs_path = file.as_local()?.abs_path(cx);
1941 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1942 let next_snapshot = buffer.text_snapshot();
1943
1944 let language_servers: Vec<_> = self
1945 .language_servers_for_buffer(buffer, cx)
1946 .map(|i| i.1.clone())
1947 .collect();
1948
1949 for language_server in language_servers {
1950 let language_server = language_server.clone();
1951
1952 let buffer_snapshots = self
1953 .buffer_snapshots
1954 .get_mut(&buffer.remote_id())
1955 .and_then(|m| m.get_mut(&language_server.server_id()))?;
1956 let previous_snapshot = buffer_snapshots.last()?;
1957 let next_version = previous_snapshot.version + 1;
1958
1959 let content_changes = buffer
1960 .edits_since::<(PointUtf16, usize)>(previous_snapshot.snapshot.version())
1961 .map(|edit| {
1962 let edit_start = edit.new.start.0;
1963 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
1964 let new_text = next_snapshot
1965 .text_for_range(edit.new.start.1..edit.new.end.1)
1966 .collect();
1967 lsp::TextDocumentContentChangeEvent {
1968 range: Some(lsp::Range::new(
1969 point_to_lsp(edit_start),
1970 point_to_lsp(edit_end),
1971 )),
1972 range_length: None,
1973 text: new_text,
1974 }
1975 })
1976 .collect();
1977
1978 buffer_snapshots.push(LspBufferSnapshot {
1979 version: next_version,
1980 snapshot: next_snapshot.clone(),
1981 });
1982
1983 language_server
1984 .notify::<lsp::notification::DidChangeTextDocument>(
1985 lsp::DidChangeTextDocumentParams {
1986 text_document: lsp::VersionedTextDocumentIdentifier::new(
1987 uri.clone(),
1988 next_version,
1989 ),
1990 content_changes,
1991 },
1992 )
1993 .log_err();
1994 }
1995 }
1996
1997 BufferEvent::Saved => {
1998 let file = File::from_dyn(buffer.read(cx).file())?;
1999 let worktree_id = file.worktree_id(cx);
2000 let abs_path = file.as_local()?.abs_path(cx);
2001 let text_document = lsp::TextDocumentIdentifier {
2002 uri: lsp::Url::from_file_path(abs_path).unwrap(),
2003 };
2004
2005 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
2006 server
2007 .notify::<lsp::notification::DidSaveTextDocument>(
2008 lsp::DidSaveTextDocumentParams {
2009 text_document: text_document.clone(),
2010 text: None,
2011 },
2012 )
2013 .log_err();
2014 }
2015
2016 let language_server_ids = self.language_server_ids_for_buffer(buffer.read(cx), cx);
2017 for language_server_id in language_server_ids {
2018 if let Some(LanguageServerState::Running {
2019 adapter,
2020 simulate_disk_based_diagnostics_completion,
2021 ..
2022 }) = self.language_servers.get_mut(&language_server_id)
2023 {
2024 // After saving a buffer using a language server that doesn't provide
2025 // a disk-based progress token, kick off a timer that will reset every
2026 // time the buffer is saved. If the timer eventually fires, simulate
2027 // disk-based diagnostics being finished so that other pieces of UI
2028 // (e.g., project diagnostics view, diagnostic status bar) can update.
2029 // We don't emit an event right away because the language server might take
2030 // some time to publish diagnostics.
2031 if adapter.disk_based_diagnostics_progress_token.is_none() {
2032 const DISK_BASED_DIAGNOSTICS_DEBOUNCE: Duration =
2033 Duration::from_secs(1);
2034
2035 let task = cx.spawn_weak(|this, mut cx| async move {
2036 cx.background().timer(DISK_BASED_DIAGNOSTICS_DEBOUNCE).await;
2037 if let Some(this) = this.upgrade(&cx) {
2038 this.update(&mut cx, |this, cx| {
2039 this.disk_based_diagnostics_finished(
2040 language_server_id,
2041 cx,
2042 );
2043 this.buffer_ordered_messages_tx
2044 .unbounded_send(
2045 BufferOrderedMessage::LanguageServerUpdate {
2046 language_server_id,
2047 message:proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(Default::default())
2048 },
2049 )
2050 .ok();
2051 });
2052 }
2053 });
2054 *simulate_disk_based_diagnostics_completion = Some(task);
2055 }
2056 }
2057 }
2058 }
2059
2060 _ => {}
2061 }
2062
2063 None
2064 }
2065
2066 fn language_servers_for_worktree(
2067 &self,
2068 worktree_id: WorktreeId,
2069 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
2070 self.language_server_ids
2071 .iter()
2072 .filter_map(move |((language_server_worktree_id, _), id)| {
2073 if *language_server_worktree_id == worktree_id {
2074 if let Some(LanguageServerState::Running {
2075 adapter,
2076 language,
2077 server,
2078 ..
2079 }) = self.language_servers.get(id)
2080 {
2081 return Some((adapter, language, server));
2082 }
2083 }
2084 None
2085 })
2086 }
2087
2088 fn maintain_buffer_languages(
2089 languages: &LanguageRegistry,
2090 cx: &mut ModelContext<Project>,
2091 ) -> Task<()> {
2092 let mut subscription = languages.subscribe();
2093 cx.spawn_weak(|project, mut cx| async move {
2094 while let Some(()) = subscription.next().await {
2095 if let Some(project) = project.upgrade(&cx) {
2096 project.update(&mut cx, |project, cx| {
2097 let mut plain_text_buffers = Vec::new();
2098 let mut buffers_with_unknown_injections = Vec::new();
2099 for buffer in project.opened_buffers.values() {
2100 if let Some(handle) = buffer.upgrade(cx) {
2101 let buffer = &handle.read(cx);
2102 if buffer.language().is_none()
2103 || buffer.language() == Some(&*language::PLAIN_TEXT)
2104 {
2105 plain_text_buffers.push(handle);
2106 } else if buffer.contains_unknown_injections() {
2107 buffers_with_unknown_injections.push(handle);
2108 }
2109 }
2110 }
2111
2112 for buffer in plain_text_buffers {
2113 project.detect_language_for_buffer(&buffer, cx);
2114 project.register_buffer_with_language_servers(&buffer, cx);
2115 }
2116
2117 for buffer in buffers_with_unknown_injections {
2118 buffer.update(cx, |buffer, cx| buffer.reparse(cx));
2119 }
2120 });
2121 }
2122 }
2123 })
2124 }
2125
2126 fn maintain_workspace_config(
2127 languages: Arc<LanguageRegistry>,
2128 cx: &mut ModelContext<Project>,
2129 ) -> Task<()> {
2130 let (mut settings_changed_tx, mut settings_changed_rx) = watch::channel();
2131 let _ = postage::stream::Stream::try_recv(&mut settings_changed_rx);
2132
2133 let settings_observation = cx.observe_global::<SettingsStore, _>(move |_, _| {
2134 *settings_changed_tx.borrow_mut() = ();
2135 });
2136 cx.spawn_weak(|this, mut cx| async move {
2137 while let Some(_) = settings_changed_rx.next().await {
2138 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2139 if let Some(this) = this.upgrade(&cx) {
2140 this.read_with(&cx, |this, _| {
2141 for server_state in this.language_servers.values() {
2142 if let LanguageServerState::Running { server, .. } = server_state {
2143 server
2144 .notify::<lsp::notification::DidChangeConfiguration>(
2145 lsp::DidChangeConfigurationParams {
2146 settings: workspace_config.clone(),
2147 },
2148 )
2149 .ok();
2150 }
2151 }
2152 })
2153 } else {
2154 break;
2155 }
2156 }
2157
2158 drop(settings_observation);
2159 })
2160 }
2161
2162 fn detect_language_for_buffer(
2163 &mut self,
2164 buffer_handle: &ModelHandle<Buffer>,
2165 cx: &mut ModelContext<Self>,
2166 ) -> Option<()> {
2167 // If the buffer has a language, set it and start the language server if we haven't already.
2168 let buffer = buffer_handle.read(cx);
2169 let full_path = buffer.file()?.full_path(cx);
2170 let content = buffer.as_rope();
2171 let new_language = self
2172 .languages
2173 .language_for_file(&full_path, Some(content))
2174 .now_or_never()?
2175 .ok()?;
2176 self.set_language_for_buffer(buffer_handle, new_language, cx);
2177 None
2178 }
2179
2180 pub fn set_language_for_buffer(
2181 &mut self,
2182 buffer: &ModelHandle<Buffer>,
2183 new_language: Arc<Language>,
2184 cx: &mut ModelContext<Self>,
2185 ) {
2186 buffer.update(cx, |buffer, cx| {
2187 if buffer.language().map_or(true, |old_language| {
2188 !Arc::ptr_eq(old_language, &new_language)
2189 }) {
2190 buffer.set_language(Some(new_language.clone()), cx);
2191 }
2192 });
2193
2194 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
2195 if let Some(worktree) = file.worktree.read(cx).as_local() {
2196 let worktree_id = worktree.id();
2197 let worktree_abs_path = worktree.abs_path().clone();
2198 self.start_language_servers(worktree_id, worktree_abs_path, new_language, cx);
2199 }
2200 }
2201 }
2202
2203 fn start_language_servers(
2204 &mut self,
2205 worktree_id: WorktreeId,
2206 worktree_path: Arc<Path>,
2207 language: Arc<Language>,
2208 cx: &mut ModelContext<Self>,
2209 ) {
2210 if !language_settings(Some(&language.name()), cx).enable_language_server {
2211 return;
2212 }
2213
2214 for adapter in language.lsp_adapters() {
2215 let key = (worktree_id, adapter.name.clone());
2216 if self.language_server_ids.contains_key(&key) {
2217 continue;
2218 }
2219
2220 let pending_server = match self.languages.start_language_server(
2221 language.clone(),
2222 adapter.clone(),
2223 worktree_path.clone(),
2224 self.client.http_client(),
2225 cx,
2226 ) {
2227 Some(pending_server) => pending_server,
2228 None => continue,
2229 };
2230
2231 let lsp = settings::get::<ProjectSettings>(cx)
2232 .lsp
2233 .get(&adapter.name.0);
2234 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
2235
2236 let mut initialization_options = adapter.initialization_options.clone();
2237 match (&mut initialization_options, override_options) {
2238 (Some(initialization_options), Some(override_options)) => {
2239 merge_json_value_into(override_options, initialization_options);
2240 }
2241 (None, override_options) => initialization_options = override_options,
2242 _ => {}
2243 }
2244
2245 let server_id = pending_server.server_id;
2246 let state = self.setup_pending_language_server(
2247 initialization_options,
2248 pending_server,
2249 adapter.clone(),
2250 language.clone(),
2251 key.clone(),
2252 cx,
2253 );
2254 self.language_servers.insert(server_id, state);
2255 self.language_server_ids.insert(key.clone(), server_id);
2256 }
2257 }
2258
2259 fn setup_pending_language_server(
2260 &mut self,
2261 initialization_options: Option<serde_json::Value>,
2262 pending_server: PendingLanguageServer,
2263 adapter: Arc<CachedLspAdapter>,
2264 language: Arc<Language>,
2265 key: (WorktreeId, LanguageServerName),
2266 cx: &mut ModelContext<Project>,
2267 ) -> LanguageServerState {
2268 let server_id = pending_server.server_id;
2269 let languages = self.languages.clone();
2270
2271 LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
2272 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2273 let language_server = pending_server.task.await.log_err()?;
2274 let language_server = language_server
2275 .initialize(initialization_options)
2276 .await
2277 .log_err()?;
2278 let this = this.upgrade(&cx)?;
2279
2280 language_server
2281 .on_notification::<lsp::notification::PublishDiagnostics, _>({
2282 let this = this.downgrade();
2283 let adapter = adapter.clone();
2284 move |mut params, cx| {
2285 let this = this;
2286 let adapter = adapter.clone();
2287 cx.spawn(|mut cx| async move {
2288 adapter.process_diagnostics(&mut params).await;
2289 if let Some(this) = this.upgrade(&cx) {
2290 this.update(&mut cx, |this, cx| {
2291 this.update_diagnostics(
2292 server_id,
2293 params,
2294 &adapter.disk_based_diagnostic_sources,
2295 cx,
2296 )
2297 .log_err();
2298 });
2299 }
2300 })
2301 .detach();
2302 }
2303 })
2304 .detach();
2305
2306 language_server
2307 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2308 let languages = languages.clone();
2309 move |params, mut cx| {
2310 let languages = languages.clone();
2311 async move {
2312 let workspace_config =
2313 cx.update(|cx| languages.workspace_configuration(cx)).await;
2314 Ok(params
2315 .items
2316 .into_iter()
2317 .map(|item| {
2318 if let Some(section) = &item.section {
2319 workspace_config
2320 .get(section)
2321 .cloned()
2322 .unwrap_or(serde_json::Value::Null)
2323 } else {
2324 workspace_config.clone()
2325 }
2326 })
2327 .collect())
2328 }
2329 }
2330 })
2331 .detach();
2332
2333 // Even though we don't have handling for these requests, respond to them to
2334 // avoid stalling any language server like `gopls` which waits for a response
2335 // to these requests when initializing.
2336 language_server
2337 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
2338 let this = this.downgrade();
2339 move |params, mut cx| async move {
2340 if let Some(this) = this.upgrade(&cx) {
2341 this.update(&mut cx, |this, _| {
2342 if let Some(status) =
2343 this.language_server_statuses.get_mut(&server_id)
2344 {
2345 if let lsp::NumberOrString::String(token) = params.token {
2346 status.progress_tokens.insert(token);
2347 }
2348 }
2349 });
2350 }
2351 Ok(())
2352 }
2353 })
2354 .detach();
2355 language_server
2356 .on_request::<lsp::request::RegisterCapability, _, _>({
2357 let this = this.downgrade();
2358 move |params, mut cx| async move {
2359 let this = this
2360 .upgrade(&cx)
2361 .ok_or_else(|| anyhow!("project dropped"))?;
2362 for reg in params.registrations {
2363 if reg.method == "workspace/didChangeWatchedFiles" {
2364 if let Some(options) = reg.register_options {
2365 let options = serde_json::from_value(options)?;
2366 this.update(&mut cx, |this, cx| {
2367 this.on_lsp_did_change_watched_files(
2368 server_id, options, cx,
2369 );
2370 });
2371 }
2372 }
2373 }
2374 Ok(())
2375 }
2376 })
2377 .detach();
2378
2379 language_server
2380 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2381 let this = this.downgrade();
2382 let adapter = adapter.clone();
2383 let language_server = language_server.clone();
2384 move |params, cx| {
2385 Self::on_lsp_workspace_edit(
2386 this,
2387 params,
2388 server_id,
2389 adapter.clone(),
2390 language_server.clone(),
2391 cx,
2392 )
2393 }
2394 })
2395 .detach();
2396
2397 let disk_based_diagnostics_progress_token =
2398 adapter.disk_based_diagnostics_progress_token.clone();
2399
2400 language_server
2401 .on_notification::<lsp::notification::Progress, _>({
2402 let this = this.downgrade();
2403 move |params, mut cx| {
2404 if let Some(this) = this.upgrade(&cx) {
2405 this.update(&mut cx, |this, cx| {
2406 this.on_lsp_progress(
2407 params,
2408 server_id,
2409 disk_based_diagnostics_progress_token.clone(),
2410 cx,
2411 );
2412 });
2413 }
2414 }
2415 })
2416 .detach();
2417
2418 language_server
2419 .notify::<lsp::notification::DidChangeConfiguration>(
2420 lsp::DidChangeConfigurationParams {
2421 settings: workspace_config,
2422 },
2423 )
2424 .ok();
2425
2426 this.update(&mut cx, |this, cx| {
2427 // If the language server for this key doesn't match the server id, don't store the
2428 // server. Which will cause it to be dropped, killing the process
2429 if this
2430 .language_server_ids
2431 .get(&key)
2432 .map(|id| id != &server_id)
2433 .unwrap_or(false)
2434 {
2435 return None;
2436 }
2437
2438 // Update language_servers collection with Running variant of LanguageServerState
2439 // indicating that the server is up and running and ready
2440 this.language_servers.insert(
2441 server_id,
2442 LanguageServerState::Running {
2443 adapter: adapter.clone(),
2444 language: language.clone(),
2445 watched_paths: Default::default(),
2446 server: language_server.clone(),
2447 simulate_disk_based_diagnostics_completion: None,
2448 },
2449 );
2450 this.language_server_statuses.insert(
2451 server_id,
2452 LanguageServerStatus {
2453 name: language_server.name().to_string(),
2454 pending_work: Default::default(),
2455 has_pending_diagnostic_updates: false,
2456 progress_tokens: Default::default(),
2457 },
2458 );
2459
2460 if let Some(project_id) = this.remote_id() {
2461 this.client
2462 .send(proto::StartLanguageServer {
2463 project_id,
2464 server: Some(proto::LanguageServer {
2465 id: server_id.0 as u64,
2466 name: language_server.name().to_string(),
2467 }),
2468 })
2469 .log_err();
2470 }
2471
2472 // Tell the language server about every open buffer in the worktree that matches the language.
2473 for buffer in this.opened_buffers.values() {
2474 if let Some(buffer_handle) = buffer.upgrade(cx) {
2475 let buffer = buffer_handle.read(cx);
2476 let file = match File::from_dyn(buffer.file()) {
2477 Some(file) => file,
2478 None => continue,
2479 };
2480 let language = match buffer.language() {
2481 Some(language) => language,
2482 None => continue,
2483 };
2484
2485 if file.worktree.read(cx).id() != key.0
2486 || !language.lsp_adapters().iter().any(|a| a.name == key.1)
2487 {
2488 continue;
2489 }
2490
2491 let file = file.as_local()?;
2492 let versions = this
2493 .buffer_snapshots
2494 .entry(buffer.remote_id())
2495 .or_default()
2496 .entry(server_id)
2497 .or_insert_with(|| {
2498 vec![LspBufferSnapshot {
2499 version: 0,
2500 snapshot: buffer.text_snapshot(),
2501 }]
2502 });
2503
2504 let snapshot = versions.last().unwrap();
2505 let version = snapshot.version;
2506 let initial_snapshot = &snapshot.snapshot;
2507 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2508 language_server
2509 .notify::<lsp::notification::DidOpenTextDocument>(
2510 lsp::DidOpenTextDocumentParams {
2511 text_document: lsp::TextDocumentItem::new(
2512 uri,
2513 adapter
2514 .language_ids
2515 .get(language.name().as_ref())
2516 .cloned()
2517 .unwrap_or_default(),
2518 version,
2519 initial_snapshot.text(),
2520 ),
2521 },
2522 )
2523 .log_err()?;
2524 buffer_handle.update(cx, |buffer, cx| {
2525 buffer.set_completion_triggers(
2526 language_server
2527 .capabilities()
2528 .completion_provider
2529 .as_ref()
2530 .and_then(|provider| provider.trigger_characters.clone())
2531 .unwrap_or_default(),
2532 cx,
2533 )
2534 });
2535 }
2536 }
2537
2538 cx.notify();
2539 Some(language_server)
2540 })
2541 }))
2542 }
2543
2544 // Returns a list of all of the worktrees which no longer have a language server and the root path
2545 // for the stopped server
2546 fn stop_language_server(
2547 &mut self,
2548 worktree_id: WorktreeId,
2549 adapter_name: LanguageServerName,
2550 cx: &mut ModelContext<Self>,
2551 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
2552 let key = (worktree_id, adapter_name);
2553 if let Some(server_id) = self.language_server_ids.remove(&key) {
2554 // Remove other entries for this language server as well
2555 let mut orphaned_worktrees = vec![worktree_id];
2556 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
2557 for other_key in other_keys {
2558 if self.language_server_ids.get(&other_key) == Some(&server_id) {
2559 self.language_server_ids.remove(&other_key);
2560 orphaned_worktrees.push(other_key.0);
2561 }
2562 }
2563
2564 for buffer in self.opened_buffers.values() {
2565 if let Some(buffer) = buffer.upgrade(cx) {
2566 buffer.update(cx, |buffer, cx| {
2567 buffer.update_diagnostics(server_id, Default::default(), cx);
2568 });
2569 }
2570 }
2571 for worktree in &self.worktrees {
2572 if let Some(worktree) = worktree.upgrade(cx) {
2573 worktree.update(cx, |worktree, cx| {
2574 if let Some(worktree) = worktree.as_local_mut() {
2575 worktree.clear_diagnostics_for_language_server(server_id, cx);
2576 }
2577 });
2578 }
2579 }
2580
2581 self.language_server_statuses.remove(&server_id);
2582 cx.notify();
2583
2584 let server_state = self.language_servers.remove(&server_id);
2585 cx.spawn_weak(|this, mut cx| async move {
2586 let mut root_path = None;
2587
2588 let server = match server_state {
2589 Some(LanguageServerState::Starting(started_language_server)) => {
2590 started_language_server.await
2591 }
2592 Some(LanguageServerState::Running { server, .. }) => Some(server),
2593 None => None,
2594 };
2595
2596 if let Some(server) = server {
2597 root_path = Some(server.root_path().clone());
2598 if let Some(shutdown) = server.shutdown() {
2599 shutdown.await;
2600 }
2601 }
2602
2603 if let Some(this) = this.upgrade(&cx) {
2604 this.update(&mut cx, |this, cx| {
2605 this.language_server_statuses.remove(&server_id);
2606 cx.notify();
2607 });
2608 }
2609
2610 (root_path, orphaned_worktrees)
2611 })
2612 } else {
2613 Task::ready((None, Vec::new()))
2614 }
2615 }
2616
2617 pub fn restart_language_servers_for_buffers(
2618 &mut self,
2619 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2620 cx: &mut ModelContext<Self>,
2621 ) -> Option<()> {
2622 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, Arc<Language>)> = buffers
2623 .into_iter()
2624 .filter_map(|buffer| {
2625 let buffer = buffer.read(cx);
2626 let file = File::from_dyn(buffer.file())?;
2627 let worktree = file.worktree.read(cx).as_local()?;
2628 let full_path = file.full_path(cx);
2629 let language = self
2630 .languages
2631 .language_for_file(&full_path, Some(buffer.as_rope()))
2632 .now_or_never()?
2633 .ok()?;
2634 Some((worktree.id(), worktree.abs_path().clone(), language))
2635 })
2636 .collect();
2637 for (worktree_id, worktree_abs_path, language) in language_server_lookup_info {
2638 self.restart_language_servers(worktree_id, worktree_abs_path, language, cx);
2639 }
2640
2641 None
2642 }
2643
2644 // TODO This will break in the case where the adapter's root paths and worktrees are not equal
2645 fn restart_language_servers(
2646 &mut self,
2647 worktree_id: WorktreeId,
2648 fallback_path: Arc<Path>,
2649 language: Arc<Language>,
2650 cx: &mut ModelContext<Self>,
2651 ) {
2652 let mut stops = Vec::new();
2653 for adapter in language.lsp_adapters() {
2654 stops.push(self.stop_language_server(worktree_id, adapter.name.clone(), cx));
2655 }
2656
2657 if stops.is_empty() {
2658 return;
2659 }
2660 let mut stops = stops.into_iter();
2661
2662 cx.spawn_weak(|this, mut cx| async move {
2663 let (original_root_path, mut orphaned_worktrees) = stops.next().unwrap().await;
2664 for stop in stops {
2665 let (_, worktrees) = stop.await;
2666 orphaned_worktrees.extend_from_slice(&worktrees);
2667 }
2668
2669 let this = match this.upgrade(&cx) {
2670 Some(this) => this,
2671 None => return,
2672 };
2673
2674 this.update(&mut cx, |this, cx| {
2675 // Attempt to restart using original server path. Fallback to passed in
2676 // path if we could not retrieve the root path
2677 let root_path = original_root_path
2678 .map(|path_buf| Arc::from(path_buf.as_path()))
2679 .unwrap_or(fallback_path);
2680
2681 this.start_language_servers(worktree_id, root_path, language.clone(), cx);
2682
2683 // Lookup new server ids and set them for each of the orphaned worktrees
2684 for adapter in language.lsp_adapters() {
2685 if let Some(new_server_id) = this
2686 .language_server_ids
2687 .get(&(worktree_id, adapter.name.clone()))
2688 .cloned()
2689 {
2690 for &orphaned_worktree in &orphaned_worktrees {
2691 this.language_server_ids
2692 .insert((orphaned_worktree, adapter.name.clone()), new_server_id);
2693 }
2694 }
2695 }
2696 });
2697 })
2698 .detach();
2699 }
2700
2701 fn on_lsp_progress(
2702 &mut self,
2703 progress: lsp::ProgressParams,
2704 language_server_id: LanguageServerId,
2705 disk_based_diagnostics_progress_token: Option<String>,
2706 cx: &mut ModelContext<Self>,
2707 ) {
2708 let token = match progress.token {
2709 lsp::NumberOrString::String(token) => token,
2710 lsp::NumberOrString::Number(token) => {
2711 log::info!("skipping numeric progress token {}", token);
2712 return;
2713 }
2714 };
2715 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
2716 let language_server_status =
2717 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2718 status
2719 } else {
2720 return;
2721 };
2722
2723 if !language_server_status.progress_tokens.contains(&token) {
2724 return;
2725 }
2726
2727 let is_disk_based_diagnostics_progress = disk_based_diagnostics_progress_token
2728 .as_ref()
2729 .map_or(false, |disk_based_token| {
2730 token.starts_with(disk_based_token)
2731 });
2732
2733 match progress {
2734 lsp::WorkDoneProgress::Begin(report) => {
2735 if is_disk_based_diagnostics_progress {
2736 language_server_status.has_pending_diagnostic_updates = true;
2737 self.disk_based_diagnostics_started(language_server_id, cx);
2738 self.buffer_ordered_messages_tx
2739 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2740 language_server_id,
2741 message: proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(Default::default())
2742 })
2743 .ok();
2744 } else {
2745 self.on_lsp_work_start(
2746 language_server_id,
2747 token.clone(),
2748 LanguageServerProgress {
2749 message: report.message.clone(),
2750 percentage: report.percentage.map(|p| p as usize),
2751 last_update_at: Instant::now(),
2752 },
2753 cx,
2754 );
2755 self.buffer_ordered_messages_tx
2756 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2757 language_server_id,
2758 message: proto::update_language_server::Variant::WorkStart(
2759 proto::LspWorkStart {
2760 token,
2761 message: report.message,
2762 percentage: report.percentage.map(|p| p as u32),
2763 },
2764 ),
2765 })
2766 .ok();
2767 }
2768 }
2769 lsp::WorkDoneProgress::Report(report) => {
2770 if !is_disk_based_diagnostics_progress {
2771 self.on_lsp_work_progress(
2772 language_server_id,
2773 token.clone(),
2774 LanguageServerProgress {
2775 message: report.message.clone(),
2776 percentage: report.percentage.map(|p| p as usize),
2777 last_update_at: Instant::now(),
2778 },
2779 cx,
2780 );
2781 self.buffer_ordered_messages_tx
2782 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2783 language_server_id,
2784 message: proto::update_language_server::Variant::WorkProgress(
2785 proto::LspWorkProgress {
2786 token,
2787 message: report.message,
2788 percentage: report.percentage.map(|p| p as u32),
2789 },
2790 ),
2791 })
2792 .ok();
2793 }
2794 }
2795 lsp::WorkDoneProgress::End(_) => {
2796 language_server_status.progress_tokens.remove(&token);
2797
2798 if is_disk_based_diagnostics_progress {
2799 language_server_status.has_pending_diagnostic_updates = false;
2800 self.disk_based_diagnostics_finished(language_server_id, cx);
2801 self.buffer_ordered_messages_tx
2802 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2803 language_server_id,
2804 message:
2805 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2806 Default::default(),
2807 ),
2808 })
2809 .ok();
2810 } else {
2811 self.on_lsp_work_end(language_server_id, token.clone(), cx);
2812 self.buffer_ordered_messages_tx
2813 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2814 language_server_id,
2815 message: proto::update_language_server::Variant::WorkEnd(
2816 proto::LspWorkEnd { token },
2817 ),
2818 })
2819 .ok();
2820 }
2821 }
2822 }
2823 }
2824
2825 fn on_lsp_work_start(
2826 &mut self,
2827 language_server_id: LanguageServerId,
2828 token: String,
2829 progress: LanguageServerProgress,
2830 cx: &mut ModelContext<Self>,
2831 ) {
2832 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2833 status.pending_work.insert(token, progress);
2834 cx.notify();
2835 }
2836 }
2837
2838 fn on_lsp_work_progress(
2839 &mut self,
2840 language_server_id: LanguageServerId,
2841 token: String,
2842 progress: LanguageServerProgress,
2843 cx: &mut ModelContext<Self>,
2844 ) {
2845 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2846 let entry = status
2847 .pending_work
2848 .entry(token)
2849 .or_insert(LanguageServerProgress {
2850 message: Default::default(),
2851 percentage: Default::default(),
2852 last_update_at: progress.last_update_at,
2853 });
2854 if progress.message.is_some() {
2855 entry.message = progress.message;
2856 }
2857 if progress.percentage.is_some() {
2858 entry.percentage = progress.percentage;
2859 }
2860 entry.last_update_at = progress.last_update_at;
2861 cx.notify();
2862 }
2863 }
2864
2865 fn on_lsp_work_end(
2866 &mut self,
2867 language_server_id: LanguageServerId,
2868 token: String,
2869 cx: &mut ModelContext<Self>,
2870 ) {
2871 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2872 status.pending_work.remove(&token);
2873 cx.notify();
2874 }
2875 }
2876
2877 fn on_lsp_did_change_watched_files(
2878 &mut self,
2879 language_server_id: LanguageServerId,
2880 params: DidChangeWatchedFilesRegistrationOptions,
2881 cx: &mut ModelContext<Self>,
2882 ) {
2883 if let Some(LanguageServerState::Running { watched_paths, .. }) =
2884 self.language_servers.get_mut(&language_server_id)
2885 {
2886 let mut builders = HashMap::default();
2887 for watcher in params.watchers {
2888 for worktree in &self.worktrees {
2889 if let Some(worktree) = worktree.upgrade(cx) {
2890 let worktree = worktree.read(cx);
2891 if let Some(abs_path) = worktree.abs_path().to_str() {
2892 if let Some(suffix) = watcher
2893 .glob_pattern
2894 .strip_prefix(abs_path)
2895 .and_then(|s| s.strip_prefix(std::path::MAIN_SEPARATOR))
2896 {
2897 if let Some(glob) = Glob::new(suffix).log_err() {
2898 builders
2899 .entry(worktree.id())
2900 .or_insert_with(|| GlobSetBuilder::new())
2901 .add(glob);
2902 }
2903 break;
2904 }
2905 }
2906 }
2907 }
2908 }
2909
2910 watched_paths.clear();
2911 for (worktree_id, builder) in builders {
2912 if let Ok(globset) = builder.build() {
2913 watched_paths.insert(worktree_id, globset);
2914 }
2915 }
2916
2917 cx.notify();
2918 }
2919 }
2920
2921 async fn on_lsp_workspace_edit(
2922 this: WeakModelHandle<Self>,
2923 params: lsp::ApplyWorkspaceEditParams,
2924 server_id: LanguageServerId,
2925 adapter: Arc<CachedLspAdapter>,
2926 language_server: Arc<LanguageServer>,
2927 mut cx: AsyncAppContext,
2928 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
2929 let this = this
2930 .upgrade(&cx)
2931 .ok_or_else(|| anyhow!("project project closed"))?;
2932 let transaction = Self::deserialize_workspace_edit(
2933 this.clone(),
2934 params.edit,
2935 true,
2936 adapter.clone(),
2937 language_server.clone(),
2938 &mut cx,
2939 )
2940 .await
2941 .log_err();
2942 this.update(&mut cx, |this, _| {
2943 if let Some(transaction) = transaction {
2944 this.last_workspace_edits_by_language_server
2945 .insert(server_id, transaction);
2946 }
2947 });
2948 Ok(lsp::ApplyWorkspaceEditResponse {
2949 applied: true,
2950 failed_change: None,
2951 failure_reason: None,
2952 })
2953 }
2954
2955 pub fn language_server_statuses(
2956 &self,
2957 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
2958 self.language_server_statuses.values()
2959 }
2960
2961 pub fn update_diagnostics(
2962 &mut self,
2963 language_server_id: LanguageServerId,
2964 mut params: lsp::PublishDiagnosticsParams,
2965 disk_based_sources: &[String],
2966 cx: &mut ModelContext<Self>,
2967 ) -> Result<()> {
2968 let abs_path = params
2969 .uri
2970 .to_file_path()
2971 .map_err(|_| anyhow!("URI is not a file"))?;
2972 let mut diagnostics = Vec::default();
2973 let mut primary_diagnostic_group_ids = HashMap::default();
2974 let mut sources_by_group_id = HashMap::default();
2975 let mut supporting_diagnostics = HashMap::default();
2976
2977 // Ensure that primary diagnostics are always the most severe
2978 params.diagnostics.sort_by_key(|item| item.severity);
2979
2980 for diagnostic in ¶ms.diagnostics {
2981 let source = diagnostic.source.as_ref();
2982 let code = diagnostic.code.as_ref().map(|code| match code {
2983 lsp::NumberOrString::Number(code) => code.to_string(),
2984 lsp::NumberOrString::String(code) => code.clone(),
2985 });
2986 let range = range_from_lsp(diagnostic.range);
2987 let is_supporting = diagnostic
2988 .related_information
2989 .as_ref()
2990 .map_or(false, |infos| {
2991 infos.iter().any(|info| {
2992 primary_diagnostic_group_ids.contains_key(&(
2993 source,
2994 code.clone(),
2995 range_from_lsp(info.location.range),
2996 ))
2997 })
2998 });
2999
3000 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
3001 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
3002 });
3003
3004 if is_supporting {
3005 supporting_diagnostics.insert(
3006 (source, code.clone(), range),
3007 (diagnostic.severity, is_unnecessary),
3008 );
3009 } else {
3010 let group_id = post_inc(&mut self.next_diagnostic_group_id);
3011 let is_disk_based =
3012 source.map_or(false, |source| disk_based_sources.contains(source));
3013
3014 sources_by_group_id.insert(group_id, source);
3015 primary_diagnostic_group_ids
3016 .insert((source, code.clone(), range.clone()), group_id);
3017
3018 diagnostics.push(DiagnosticEntry {
3019 range,
3020 diagnostic: Diagnostic {
3021 source: diagnostic.source.clone(),
3022 code: code.clone(),
3023 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
3024 message: diagnostic.message.clone(),
3025 group_id,
3026 is_primary: true,
3027 is_valid: true,
3028 is_disk_based,
3029 is_unnecessary,
3030 },
3031 });
3032 if let Some(infos) = &diagnostic.related_information {
3033 for info in infos {
3034 if info.location.uri == params.uri && !info.message.is_empty() {
3035 let range = range_from_lsp(info.location.range);
3036 diagnostics.push(DiagnosticEntry {
3037 range,
3038 diagnostic: Diagnostic {
3039 source: diagnostic.source.clone(),
3040 code: code.clone(),
3041 severity: DiagnosticSeverity::INFORMATION,
3042 message: info.message.clone(),
3043 group_id,
3044 is_primary: false,
3045 is_valid: true,
3046 is_disk_based,
3047 is_unnecessary: false,
3048 },
3049 });
3050 }
3051 }
3052 }
3053 }
3054 }
3055
3056 for entry in &mut diagnostics {
3057 let diagnostic = &mut entry.diagnostic;
3058 if !diagnostic.is_primary {
3059 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
3060 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
3061 source,
3062 diagnostic.code.clone(),
3063 entry.range.clone(),
3064 )) {
3065 if let Some(severity) = severity {
3066 diagnostic.severity = severity;
3067 }
3068 diagnostic.is_unnecessary = is_unnecessary;
3069 }
3070 }
3071 }
3072
3073 self.update_diagnostic_entries(
3074 language_server_id,
3075 abs_path,
3076 params.version,
3077 diagnostics,
3078 cx,
3079 )?;
3080 Ok(())
3081 }
3082
3083 pub fn update_diagnostic_entries(
3084 &mut self,
3085 server_id: LanguageServerId,
3086 abs_path: PathBuf,
3087 version: Option<i32>,
3088 diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3089 cx: &mut ModelContext<Project>,
3090 ) -> Result<(), anyhow::Error> {
3091 let (worktree, relative_path) = self
3092 .find_local_worktree(&abs_path, cx)
3093 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
3094
3095 let project_path = ProjectPath {
3096 worktree_id: worktree.read(cx).id(),
3097 path: relative_path.into(),
3098 };
3099
3100 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
3101 self.update_buffer_diagnostics(&buffer, server_id, version, diagnostics.clone(), cx)?;
3102 }
3103
3104 let updated = worktree.update(cx, |worktree, cx| {
3105 worktree
3106 .as_local_mut()
3107 .ok_or_else(|| anyhow!("not a local worktree"))?
3108 .update_diagnostics(server_id, project_path.path.clone(), diagnostics, cx)
3109 })?;
3110 if updated {
3111 cx.emit(Event::DiagnosticsUpdated {
3112 language_server_id: server_id,
3113 path: project_path,
3114 });
3115 }
3116 Ok(())
3117 }
3118
3119 fn update_buffer_diagnostics(
3120 &mut self,
3121 buffer: &ModelHandle<Buffer>,
3122 server_id: LanguageServerId,
3123 version: Option<i32>,
3124 mut diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3125 cx: &mut ModelContext<Self>,
3126 ) -> Result<()> {
3127 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
3128 Ordering::Equal
3129 .then_with(|| b.is_primary.cmp(&a.is_primary))
3130 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
3131 .then_with(|| a.severity.cmp(&b.severity))
3132 .then_with(|| a.message.cmp(&b.message))
3133 }
3134
3135 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx)?;
3136
3137 diagnostics.sort_unstable_by(|a, b| {
3138 Ordering::Equal
3139 .then_with(|| a.range.start.cmp(&b.range.start))
3140 .then_with(|| b.range.end.cmp(&a.range.end))
3141 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
3142 });
3143
3144 let mut sanitized_diagnostics = Vec::new();
3145 let edits_since_save = Patch::new(
3146 snapshot
3147 .edits_since::<Unclipped<PointUtf16>>(buffer.read(cx).saved_version())
3148 .collect(),
3149 );
3150 for entry in diagnostics {
3151 let start;
3152 let end;
3153 if entry.diagnostic.is_disk_based {
3154 // Some diagnostics are based on files on disk instead of buffers'
3155 // current contents. Adjust these diagnostics' ranges to reflect
3156 // any unsaved edits.
3157 start = edits_since_save.old_to_new(entry.range.start);
3158 end = edits_since_save.old_to_new(entry.range.end);
3159 } else {
3160 start = entry.range.start;
3161 end = entry.range.end;
3162 }
3163
3164 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
3165 ..snapshot.clip_point_utf16(end, Bias::Right);
3166
3167 // Expand empty ranges by one codepoint
3168 if range.start == range.end {
3169 // This will be go to the next boundary when being clipped
3170 range.end.column += 1;
3171 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Right);
3172 if range.start == range.end && range.end.column > 0 {
3173 range.start.column -= 1;
3174 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Left);
3175 }
3176 }
3177
3178 sanitized_diagnostics.push(DiagnosticEntry {
3179 range,
3180 diagnostic: entry.diagnostic,
3181 });
3182 }
3183 drop(edits_since_save);
3184
3185 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
3186 buffer.update(cx, |buffer, cx| {
3187 buffer.update_diagnostics(server_id, set, cx)
3188 });
3189 Ok(())
3190 }
3191
3192 pub fn reload_buffers(
3193 &self,
3194 buffers: HashSet<ModelHandle<Buffer>>,
3195 push_to_history: bool,
3196 cx: &mut ModelContext<Self>,
3197 ) -> Task<Result<ProjectTransaction>> {
3198 let mut local_buffers = Vec::new();
3199 let mut remote_buffers = None;
3200 for buffer_handle in buffers {
3201 let buffer = buffer_handle.read(cx);
3202 if buffer.is_dirty() {
3203 if let Some(file) = File::from_dyn(buffer.file()) {
3204 if file.is_local() {
3205 local_buffers.push(buffer_handle);
3206 } else {
3207 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3208 }
3209 }
3210 }
3211 }
3212
3213 let remote_buffers = self.remote_id().zip(remote_buffers);
3214 let client = self.client.clone();
3215
3216 cx.spawn(|this, mut cx| async move {
3217 let mut project_transaction = ProjectTransaction::default();
3218
3219 if let Some((project_id, remote_buffers)) = remote_buffers {
3220 let response = client
3221 .request(proto::ReloadBuffers {
3222 project_id,
3223 buffer_ids: remote_buffers
3224 .iter()
3225 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3226 .collect(),
3227 })
3228 .await?
3229 .transaction
3230 .ok_or_else(|| anyhow!("missing transaction"))?;
3231 project_transaction = this
3232 .update(&mut cx, |this, cx| {
3233 this.deserialize_project_transaction(response, push_to_history, cx)
3234 })
3235 .await?;
3236 }
3237
3238 for buffer in local_buffers {
3239 let transaction = buffer
3240 .update(&mut cx, |buffer, cx| buffer.reload(cx))
3241 .await?;
3242 buffer.update(&mut cx, |buffer, cx| {
3243 if let Some(transaction) = transaction {
3244 if !push_to_history {
3245 buffer.forget_transaction(transaction.id);
3246 }
3247 project_transaction.0.insert(cx.handle(), transaction);
3248 }
3249 });
3250 }
3251
3252 Ok(project_transaction)
3253 })
3254 }
3255
3256 pub fn format(
3257 &self,
3258 buffers: HashSet<ModelHandle<Buffer>>,
3259 push_to_history: bool,
3260 trigger: FormatTrigger,
3261 cx: &mut ModelContext<Project>,
3262 ) -> Task<Result<ProjectTransaction>> {
3263 if self.is_local() {
3264 let mut buffers_with_paths_and_servers = buffers
3265 .into_iter()
3266 .filter_map(|buffer_handle| {
3267 let buffer = buffer_handle.read(cx);
3268 let file = File::from_dyn(buffer.file())?;
3269 let buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3270 let server = self
3271 .primary_language_servers_for_buffer(buffer, cx)
3272 .map(|s| s.1.clone());
3273 Some((buffer_handle, buffer_abs_path, server))
3274 })
3275 .collect::<Vec<_>>();
3276
3277 cx.spawn(|this, mut cx| async move {
3278 // Do not allow multiple concurrent formatting requests for the
3279 // same buffer.
3280 this.update(&mut cx, |this, cx| {
3281 buffers_with_paths_and_servers.retain(|(buffer, _, _)| {
3282 this.buffers_being_formatted
3283 .insert(buffer.read(cx).remote_id())
3284 });
3285 });
3286
3287 let _cleanup = defer({
3288 let this = this.clone();
3289 let mut cx = cx.clone();
3290 let buffers = &buffers_with_paths_and_servers;
3291 move || {
3292 this.update(&mut cx, |this, cx| {
3293 for (buffer, _, _) in buffers {
3294 this.buffers_being_formatted
3295 .remove(&buffer.read(cx).remote_id());
3296 }
3297 });
3298 }
3299 });
3300
3301 let mut project_transaction = ProjectTransaction::default();
3302 for (buffer, buffer_abs_path, language_server) in &buffers_with_paths_and_servers {
3303 let settings = buffer.read_with(&cx, |buffer, cx| {
3304 let language_name = buffer.language().map(|language| language.name());
3305 language_settings(language_name.as_deref(), cx).clone()
3306 });
3307
3308 let remove_trailing_whitespace = settings.remove_trailing_whitespace_on_save;
3309 let ensure_final_newline = settings.ensure_final_newline_on_save;
3310 let format_on_save = settings.format_on_save.clone();
3311 let formatter = settings.formatter.clone();
3312 let tab_size = settings.tab_size;
3313
3314 // First, format buffer's whitespace according to the settings.
3315 let trailing_whitespace_diff = if remove_trailing_whitespace {
3316 Some(
3317 buffer
3318 .read_with(&cx, |b, cx| b.remove_trailing_whitespace(cx))
3319 .await,
3320 )
3321 } else {
3322 None
3323 };
3324 let whitespace_transaction_id = buffer.update(&mut cx, |buffer, cx| {
3325 buffer.finalize_last_transaction();
3326 buffer.start_transaction();
3327 if let Some(diff) = trailing_whitespace_diff {
3328 buffer.apply_diff(diff, cx);
3329 }
3330 if ensure_final_newline {
3331 buffer.ensure_final_newline(cx);
3332 }
3333 buffer.end_transaction(cx)
3334 });
3335
3336 // Currently, formatting operations are represented differently depending on
3337 // whether they come from a language server or an external command.
3338 enum FormatOperation {
3339 Lsp(Vec<(Range<Anchor>, String)>),
3340 External(Diff),
3341 }
3342
3343 // Apply language-specific formatting using either a language server
3344 // or external command.
3345 let mut format_operation = None;
3346 match (formatter, format_on_save) {
3347 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => {}
3348
3349 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
3350 | (_, FormatOnSave::LanguageServer) => {
3351 if let Some((language_server, buffer_abs_path)) =
3352 language_server.as_ref().zip(buffer_abs_path.as_ref())
3353 {
3354 format_operation = Some(FormatOperation::Lsp(
3355 Self::format_via_lsp(
3356 &this,
3357 &buffer,
3358 buffer_abs_path,
3359 &language_server,
3360 tab_size,
3361 &mut cx,
3362 )
3363 .await
3364 .context("failed to format via language server")?,
3365 ));
3366 }
3367 }
3368
3369 (
3370 Formatter::External { command, arguments },
3371 FormatOnSave::On | FormatOnSave::Off,
3372 )
3373 | (_, FormatOnSave::External { command, arguments }) => {
3374 if let Some(buffer_abs_path) = buffer_abs_path {
3375 format_operation = Self::format_via_external_command(
3376 &buffer,
3377 &buffer_abs_path,
3378 &command,
3379 &arguments,
3380 &mut cx,
3381 )
3382 .await
3383 .context(format!(
3384 "failed to format via external command {:?}",
3385 command
3386 ))?
3387 .map(FormatOperation::External);
3388 }
3389 }
3390 };
3391
3392 buffer.update(&mut cx, |b, cx| {
3393 // If the buffer had its whitespace formatted and was edited while the language-specific
3394 // formatting was being computed, avoid applying the language-specific formatting, because
3395 // it can't be grouped with the whitespace formatting in the undo history.
3396 if let Some(transaction_id) = whitespace_transaction_id {
3397 if b.peek_undo_stack()
3398 .map_or(true, |e| e.transaction_id() != transaction_id)
3399 {
3400 format_operation.take();
3401 }
3402 }
3403
3404 // Apply any language-specific formatting, and group the two formatting operations
3405 // in the buffer's undo history.
3406 if let Some(operation) = format_operation {
3407 match operation {
3408 FormatOperation::Lsp(edits) => {
3409 b.edit(edits, None, cx);
3410 }
3411 FormatOperation::External(diff) => {
3412 b.apply_diff(diff, cx);
3413 }
3414 }
3415
3416 if let Some(transaction_id) = whitespace_transaction_id {
3417 b.group_until_transaction(transaction_id);
3418 }
3419 }
3420
3421 if let Some(transaction) = b.finalize_last_transaction().cloned() {
3422 if !push_to_history {
3423 b.forget_transaction(transaction.id);
3424 }
3425 project_transaction.0.insert(buffer.clone(), transaction);
3426 }
3427 });
3428 }
3429
3430 Ok(project_transaction)
3431 })
3432 } else {
3433 let remote_id = self.remote_id();
3434 let client = self.client.clone();
3435 cx.spawn(|this, mut cx| async move {
3436 let mut project_transaction = ProjectTransaction::default();
3437 if let Some(project_id) = remote_id {
3438 let response = client
3439 .request(proto::FormatBuffers {
3440 project_id,
3441 trigger: trigger as i32,
3442 buffer_ids: buffers
3443 .iter()
3444 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3445 .collect(),
3446 })
3447 .await?
3448 .transaction
3449 .ok_or_else(|| anyhow!("missing transaction"))?;
3450 project_transaction = this
3451 .update(&mut cx, |this, cx| {
3452 this.deserialize_project_transaction(response, push_to_history, cx)
3453 })
3454 .await?;
3455 }
3456 Ok(project_transaction)
3457 })
3458 }
3459 }
3460
3461 async fn format_via_lsp(
3462 this: &ModelHandle<Self>,
3463 buffer: &ModelHandle<Buffer>,
3464 abs_path: &Path,
3465 language_server: &Arc<LanguageServer>,
3466 tab_size: NonZeroU32,
3467 cx: &mut AsyncAppContext,
3468 ) -> Result<Vec<(Range<Anchor>, String)>> {
3469 let text_document =
3470 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(abs_path).unwrap());
3471 let capabilities = &language_server.capabilities();
3472 let lsp_edits = if capabilities
3473 .document_formatting_provider
3474 .as_ref()
3475 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3476 {
3477 language_server
3478 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
3479 text_document,
3480 options: lsp_command::lsp_formatting_options(tab_size.get()),
3481 work_done_progress_params: Default::default(),
3482 })
3483 .await?
3484 } else if capabilities
3485 .document_range_formatting_provider
3486 .as_ref()
3487 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3488 {
3489 let buffer_start = lsp::Position::new(0, 0);
3490 let buffer_end =
3491 buffer.read_with(cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
3492 language_server
3493 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
3494 text_document,
3495 range: lsp::Range::new(buffer_start, buffer_end),
3496 options: lsp_command::lsp_formatting_options(tab_size.get()),
3497 work_done_progress_params: Default::default(),
3498 })
3499 .await?
3500 } else {
3501 None
3502 };
3503
3504 if let Some(lsp_edits) = lsp_edits {
3505 this.update(cx, |this, cx| {
3506 this.edits_from_lsp(buffer, lsp_edits, language_server.server_id(), None, cx)
3507 })
3508 .await
3509 } else {
3510 Ok(Default::default())
3511 }
3512 }
3513
3514 async fn format_via_external_command(
3515 buffer: &ModelHandle<Buffer>,
3516 buffer_abs_path: &Path,
3517 command: &str,
3518 arguments: &[String],
3519 cx: &mut AsyncAppContext,
3520 ) -> Result<Option<Diff>> {
3521 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
3522 let file = File::from_dyn(buffer.file())?;
3523 let worktree = file.worktree.read(cx).as_local()?;
3524 let mut worktree_path = worktree.abs_path().to_path_buf();
3525 if worktree.root_entry()?.is_file() {
3526 worktree_path.pop();
3527 }
3528 Some(worktree_path)
3529 });
3530
3531 if let Some(working_dir_path) = working_dir_path {
3532 let mut child =
3533 smol::process::Command::new(command)
3534 .args(arguments.iter().map(|arg| {
3535 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
3536 }))
3537 .current_dir(&working_dir_path)
3538 .stdin(smol::process::Stdio::piped())
3539 .stdout(smol::process::Stdio::piped())
3540 .stderr(smol::process::Stdio::piped())
3541 .spawn()?;
3542 let stdin = child
3543 .stdin
3544 .as_mut()
3545 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
3546 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
3547 for chunk in text.chunks() {
3548 stdin.write_all(chunk.as_bytes()).await?;
3549 }
3550 stdin.flush().await?;
3551
3552 let output = child.output().await?;
3553 if !output.status.success() {
3554 return Err(anyhow!(
3555 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
3556 output.status.code(),
3557 String::from_utf8_lossy(&output.stdout),
3558 String::from_utf8_lossy(&output.stderr),
3559 ));
3560 }
3561
3562 let stdout = String::from_utf8(output.stdout)?;
3563 Ok(Some(
3564 buffer
3565 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
3566 .await,
3567 ))
3568 } else {
3569 Ok(None)
3570 }
3571 }
3572
3573 pub fn definition<T: ToPointUtf16>(
3574 &self,
3575 buffer: &ModelHandle<Buffer>,
3576 position: T,
3577 cx: &mut ModelContext<Self>,
3578 ) -> Task<Result<Vec<LocationLink>>> {
3579 let position = position.to_point_utf16(buffer.read(cx));
3580 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
3581 }
3582
3583 pub fn type_definition<T: ToPointUtf16>(
3584 &self,
3585 buffer: &ModelHandle<Buffer>,
3586 position: T,
3587 cx: &mut ModelContext<Self>,
3588 ) -> Task<Result<Vec<LocationLink>>> {
3589 let position = position.to_point_utf16(buffer.read(cx));
3590 self.request_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
3591 }
3592
3593 pub fn references<T: ToPointUtf16>(
3594 &self,
3595 buffer: &ModelHandle<Buffer>,
3596 position: T,
3597 cx: &mut ModelContext<Self>,
3598 ) -> Task<Result<Vec<Location>>> {
3599 let position = position.to_point_utf16(buffer.read(cx));
3600 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
3601 }
3602
3603 pub fn document_highlights<T: ToPointUtf16>(
3604 &self,
3605 buffer: &ModelHandle<Buffer>,
3606 position: T,
3607 cx: &mut ModelContext<Self>,
3608 ) -> Task<Result<Vec<DocumentHighlight>>> {
3609 let position = position.to_point_utf16(buffer.read(cx));
3610 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
3611 }
3612
3613 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
3614 if self.is_local() {
3615 let mut requests = Vec::new();
3616 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
3617 let worktree_id = *worktree_id;
3618 if let Some(worktree) = self
3619 .worktree_for_id(worktree_id, cx)
3620 .and_then(|worktree| worktree.read(cx).as_local())
3621 {
3622 if let Some(LanguageServerState::Running {
3623 adapter,
3624 language,
3625 server,
3626 ..
3627 }) = self.language_servers.get(server_id)
3628 {
3629 let adapter = adapter.clone();
3630 let language = language.clone();
3631 let worktree_abs_path = worktree.abs_path().clone();
3632 requests.push(
3633 server
3634 .request::<lsp::request::WorkspaceSymbol>(
3635 lsp::WorkspaceSymbolParams {
3636 query: query.to_string(),
3637 ..Default::default()
3638 },
3639 )
3640 .log_err()
3641 .map(move |response| {
3642 (
3643 adapter,
3644 language,
3645 worktree_id,
3646 worktree_abs_path,
3647 response.unwrap_or_default(),
3648 )
3649 }),
3650 );
3651 }
3652 }
3653 }
3654
3655 cx.spawn_weak(|this, cx| async move {
3656 let responses = futures::future::join_all(requests).await;
3657 let this = if let Some(this) = this.upgrade(&cx) {
3658 this
3659 } else {
3660 return Ok(Default::default());
3661 };
3662 let symbols = this.read_with(&cx, |this, cx| {
3663 let mut symbols = Vec::new();
3664 for (
3665 adapter,
3666 adapter_language,
3667 source_worktree_id,
3668 worktree_abs_path,
3669 response,
3670 ) in responses
3671 {
3672 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3673 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3674 let mut worktree_id = source_worktree_id;
3675 let path;
3676 if let Some((worktree, rel_path)) =
3677 this.find_local_worktree(&abs_path, cx)
3678 {
3679 worktree_id = worktree.read(cx).id();
3680 path = rel_path;
3681 } else {
3682 path = relativize_path(&worktree_abs_path, &abs_path);
3683 }
3684
3685 let project_path = ProjectPath {
3686 worktree_id,
3687 path: path.into(),
3688 };
3689 let signature = this.symbol_signature(&project_path);
3690 let adapter_language = adapter_language.clone();
3691 let language = this
3692 .languages
3693 .language_for_file(&project_path.path, None)
3694 .unwrap_or_else(move |_| adapter_language);
3695 let language_server_name = adapter.name.clone();
3696 Some(async move {
3697 let language = language.await;
3698 let label = language
3699 .label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3700 .await;
3701
3702 Symbol {
3703 language_server_name,
3704 source_worktree_id,
3705 path: project_path,
3706 label: label.unwrap_or_else(|| {
3707 CodeLabel::plain(lsp_symbol.name.clone(), None)
3708 }),
3709 kind: lsp_symbol.kind,
3710 name: lsp_symbol.name,
3711 range: range_from_lsp(lsp_symbol.location.range),
3712 signature,
3713 }
3714 })
3715 }));
3716 }
3717 symbols
3718 });
3719 Ok(futures::future::join_all(symbols).await)
3720 })
3721 } else if let Some(project_id) = self.remote_id() {
3722 let request = self.client.request(proto::GetProjectSymbols {
3723 project_id,
3724 query: query.to_string(),
3725 });
3726 cx.spawn_weak(|this, cx| async move {
3727 let response = request.await?;
3728 let mut symbols = Vec::new();
3729 if let Some(this) = this.upgrade(&cx) {
3730 let new_symbols = this.read_with(&cx, |this, _| {
3731 response
3732 .symbols
3733 .into_iter()
3734 .map(|symbol| this.deserialize_symbol(symbol))
3735 .collect::<Vec<_>>()
3736 });
3737 symbols = futures::future::join_all(new_symbols)
3738 .await
3739 .into_iter()
3740 .filter_map(|symbol| symbol.log_err())
3741 .collect::<Vec<_>>();
3742 }
3743 Ok(symbols)
3744 })
3745 } else {
3746 Task::ready(Ok(Default::default()))
3747 }
3748 }
3749
3750 pub fn open_buffer_for_symbol(
3751 &mut self,
3752 symbol: &Symbol,
3753 cx: &mut ModelContext<Self>,
3754 ) -> Task<Result<ModelHandle<Buffer>>> {
3755 if self.is_local() {
3756 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
3757 symbol.source_worktree_id,
3758 symbol.language_server_name.clone(),
3759 )) {
3760 *id
3761 } else {
3762 return Task::ready(Err(anyhow!(
3763 "language server for worktree and language not found"
3764 )));
3765 };
3766
3767 let worktree_abs_path = if let Some(worktree_abs_path) = self
3768 .worktree_for_id(symbol.path.worktree_id, cx)
3769 .and_then(|worktree| worktree.read(cx).as_local())
3770 .map(|local_worktree| local_worktree.abs_path())
3771 {
3772 worktree_abs_path
3773 } else {
3774 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3775 };
3776 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
3777 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3778 uri
3779 } else {
3780 return Task::ready(Err(anyhow!("invalid symbol path")));
3781 };
3782
3783 self.open_local_buffer_via_lsp(
3784 symbol_uri,
3785 language_server_id,
3786 symbol.language_server_name.clone(),
3787 cx,
3788 )
3789 } else if let Some(project_id) = self.remote_id() {
3790 let request = self.client.request(proto::OpenBufferForSymbol {
3791 project_id,
3792 symbol: Some(serialize_symbol(symbol)),
3793 });
3794 cx.spawn(|this, mut cx| async move {
3795 let response = request.await?;
3796 this.update(&mut cx, |this, cx| {
3797 this.wait_for_remote_buffer(response.buffer_id, cx)
3798 })
3799 .await
3800 })
3801 } else {
3802 Task::ready(Err(anyhow!("project does not have a remote id")))
3803 }
3804 }
3805
3806 pub fn hover<T: ToPointUtf16>(
3807 &self,
3808 buffer: &ModelHandle<Buffer>,
3809 position: T,
3810 cx: &mut ModelContext<Self>,
3811 ) -> Task<Result<Option<Hover>>> {
3812 let position = position.to_point_utf16(buffer.read(cx));
3813 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3814 }
3815
3816 pub fn completions<T: ToPointUtf16>(
3817 &self,
3818 buffer: &ModelHandle<Buffer>,
3819 position: T,
3820 cx: &mut ModelContext<Self>,
3821 ) -> Task<Result<Vec<Completion>>> {
3822 let position = position.to_point_utf16(buffer.read(cx));
3823 self.request_lsp(buffer.clone(), GetCompletions { position }, cx)
3824 }
3825
3826 pub fn apply_additional_edits_for_completion(
3827 &self,
3828 buffer_handle: ModelHandle<Buffer>,
3829 completion: Completion,
3830 push_to_history: bool,
3831 cx: &mut ModelContext<Self>,
3832 ) -> Task<Result<Option<Transaction>>> {
3833 let buffer = buffer_handle.read(cx);
3834 let buffer_id = buffer.remote_id();
3835
3836 if self.is_local() {
3837 let lang_server = match self.primary_language_servers_for_buffer(buffer, cx) {
3838 Some((_, server)) => server.clone(),
3839 _ => return Task::ready(Ok(Default::default())),
3840 };
3841
3842 cx.spawn(|this, mut cx| async move {
3843 let resolved_completion = lang_server
3844 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3845 .await?;
3846
3847 if let Some(edits) = resolved_completion.additional_text_edits {
3848 let edits = this
3849 .update(&mut cx, |this, cx| {
3850 this.edits_from_lsp(
3851 &buffer_handle,
3852 edits,
3853 lang_server.server_id(),
3854 None,
3855 cx,
3856 )
3857 })
3858 .await?;
3859
3860 buffer_handle.update(&mut cx, |buffer, cx| {
3861 buffer.finalize_last_transaction();
3862 buffer.start_transaction();
3863
3864 for (range, text) in edits {
3865 let primary = &completion.old_range;
3866 let start_within = primary.start.cmp(&range.start, buffer).is_le()
3867 && primary.end.cmp(&range.start, buffer).is_ge();
3868 let end_within = range.start.cmp(&primary.end, buffer).is_le()
3869 && range.end.cmp(&primary.end, buffer).is_ge();
3870
3871 //Skip addtional edits which overlap with the primary completion edit
3872 //https://github.com/zed-industries/zed/pull/1871
3873 if !start_within && !end_within {
3874 buffer.edit([(range, text)], None, cx);
3875 }
3876 }
3877
3878 let transaction = if buffer.end_transaction(cx).is_some() {
3879 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3880 if !push_to_history {
3881 buffer.forget_transaction(transaction.id);
3882 }
3883 Some(transaction)
3884 } else {
3885 None
3886 };
3887 Ok(transaction)
3888 })
3889 } else {
3890 Ok(None)
3891 }
3892 })
3893 } else if let Some(project_id) = self.remote_id() {
3894 let client = self.client.clone();
3895 cx.spawn(|_, mut cx| async move {
3896 let response = client
3897 .request(proto::ApplyCompletionAdditionalEdits {
3898 project_id,
3899 buffer_id,
3900 completion: Some(language::proto::serialize_completion(&completion)),
3901 })
3902 .await?;
3903
3904 if let Some(transaction) = response.transaction {
3905 let transaction = language::proto::deserialize_transaction(transaction)?;
3906 buffer_handle
3907 .update(&mut cx, |buffer, _| {
3908 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
3909 })
3910 .await?;
3911 if push_to_history {
3912 buffer_handle.update(&mut cx, |buffer, _| {
3913 buffer.push_transaction(transaction.clone(), Instant::now());
3914 });
3915 }
3916 Ok(Some(transaction))
3917 } else {
3918 Ok(None)
3919 }
3920 })
3921 } else {
3922 Task::ready(Err(anyhow!("project does not have a remote id")))
3923 }
3924 }
3925
3926 pub fn code_actions<T: Clone + ToOffset>(
3927 &self,
3928 buffer_handle: &ModelHandle<Buffer>,
3929 range: Range<T>,
3930 cx: &mut ModelContext<Self>,
3931 ) -> Task<Result<Vec<CodeAction>>> {
3932 let buffer = buffer_handle.read(cx);
3933 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3934 self.request_lsp(buffer_handle.clone(), GetCodeActions { range }, cx)
3935 }
3936
3937 pub fn apply_code_action(
3938 &self,
3939 buffer_handle: ModelHandle<Buffer>,
3940 mut action: CodeAction,
3941 push_to_history: bool,
3942 cx: &mut ModelContext<Self>,
3943 ) -> Task<Result<ProjectTransaction>> {
3944 if self.is_local() {
3945 let buffer = buffer_handle.read(cx);
3946 let (lsp_adapter, lang_server) = if let Some((adapter, server)) =
3947 self.language_server_for_buffer(buffer, action.server_id, cx)
3948 {
3949 (adapter.clone(), server.clone())
3950 } else {
3951 return Task::ready(Ok(Default::default()));
3952 };
3953 let range = action.range.to_point_utf16(buffer);
3954
3955 cx.spawn(|this, mut cx| async move {
3956 if let Some(lsp_range) = action
3957 .lsp_action
3958 .data
3959 .as_mut()
3960 .and_then(|d| d.get_mut("codeActionParams"))
3961 .and_then(|d| d.get_mut("range"))
3962 {
3963 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
3964 action.lsp_action = lang_server
3965 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
3966 .await?;
3967 } else {
3968 let actions = this
3969 .update(&mut cx, |this, cx| {
3970 this.code_actions(&buffer_handle, action.range, cx)
3971 })
3972 .await?;
3973 action.lsp_action = actions
3974 .into_iter()
3975 .find(|a| a.lsp_action.title == action.lsp_action.title)
3976 .ok_or_else(|| anyhow!("code action is outdated"))?
3977 .lsp_action;
3978 }
3979
3980 if let Some(edit) = action.lsp_action.edit {
3981 if edit.changes.is_some() || edit.document_changes.is_some() {
3982 return Self::deserialize_workspace_edit(
3983 this,
3984 edit,
3985 push_to_history,
3986 lsp_adapter.clone(),
3987 lang_server.clone(),
3988 &mut cx,
3989 )
3990 .await;
3991 }
3992 }
3993
3994 if let Some(command) = action.lsp_action.command {
3995 this.update(&mut cx, |this, _| {
3996 this.last_workspace_edits_by_language_server
3997 .remove(&lang_server.server_id());
3998 });
3999 lang_server
4000 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
4001 command: command.command,
4002 arguments: command.arguments.unwrap_or_default(),
4003 ..Default::default()
4004 })
4005 .await?;
4006 return Ok(this.update(&mut cx, |this, _| {
4007 this.last_workspace_edits_by_language_server
4008 .remove(&lang_server.server_id())
4009 .unwrap_or_default()
4010 }));
4011 }
4012
4013 Ok(ProjectTransaction::default())
4014 })
4015 } else if let Some(project_id) = self.remote_id() {
4016 let client = self.client.clone();
4017 let request = proto::ApplyCodeAction {
4018 project_id,
4019 buffer_id: buffer_handle.read(cx).remote_id(),
4020 action: Some(language::proto::serialize_code_action(&action)),
4021 };
4022 cx.spawn(|this, mut cx| async move {
4023 let response = client
4024 .request(request)
4025 .await?
4026 .transaction
4027 .ok_or_else(|| anyhow!("missing transaction"))?;
4028 this.update(&mut cx, |this, cx| {
4029 this.deserialize_project_transaction(response, push_to_history, cx)
4030 })
4031 .await
4032 })
4033 } else {
4034 Task::ready(Err(anyhow!("project does not have a remote id")))
4035 }
4036 }
4037
4038 fn apply_on_type_formatting(
4039 &self,
4040 buffer: ModelHandle<Buffer>,
4041 position: Anchor,
4042 trigger: String,
4043 cx: &mut ModelContext<Self>,
4044 ) -> Task<Result<Option<Transaction>>> {
4045 if self.is_local() {
4046 cx.spawn(|this, mut cx| async move {
4047 // Do not allow multiple concurrent formatting requests for the
4048 // same buffer.
4049 this.update(&mut cx, |this, cx| {
4050 this.buffers_being_formatted
4051 .insert(buffer.read(cx).remote_id())
4052 });
4053
4054 let _cleanup = defer({
4055 let this = this.clone();
4056 let mut cx = cx.clone();
4057 let closure_buffer = buffer.clone();
4058 move || {
4059 this.update(&mut cx, |this, cx| {
4060 this.buffers_being_formatted
4061 .remove(&closure_buffer.read(cx).remote_id());
4062 });
4063 }
4064 });
4065
4066 buffer
4067 .update(&mut cx, |buffer, _| {
4068 buffer.wait_for_edits(Some(position.timestamp))
4069 })
4070 .await?;
4071 this.update(&mut cx, |this, cx| {
4072 let position = position.to_point_utf16(buffer.read(cx));
4073 this.on_type_format(buffer, position, trigger, false, cx)
4074 })
4075 .await
4076 })
4077 } else if let Some(project_id) = self.remote_id() {
4078 let client = self.client.clone();
4079 let request = proto::OnTypeFormatting {
4080 project_id,
4081 buffer_id: buffer.read(cx).remote_id(),
4082 position: Some(serialize_anchor(&position)),
4083 trigger,
4084 version: serialize_version(&buffer.read(cx).version()),
4085 };
4086 cx.spawn(|_, _| async move {
4087 client
4088 .request(request)
4089 .await?
4090 .transaction
4091 .map(language::proto::deserialize_transaction)
4092 .transpose()
4093 })
4094 } else {
4095 Task::ready(Err(anyhow!("project does not have a remote id")))
4096 }
4097 }
4098
4099 async fn deserialize_edits(
4100 this: ModelHandle<Self>,
4101 buffer_to_edit: ModelHandle<Buffer>,
4102 edits: Vec<lsp::TextEdit>,
4103 push_to_history: bool,
4104 _: Arc<CachedLspAdapter>,
4105 language_server: Arc<LanguageServer>,
4106 cx: &mut AsyncAppContext,
4107 ) -> Result<Option<Transaction>> {
4108 let edits = this
4109 .update(cx, |this, cx| {
4110 this.edits_from_lsp(
4111 &buffer_to_edit,
4112 edits,
4113 language_server.server_id(),
4114 None,
4115 cx,
4116 )
4117 })
4118 .await?;
4119
4120 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4121 buffer.finalize_last_transaction();
4122 buffer.start_transaction();
4123 for (range, text) in edits {
4124 buffer.edit([(range, text)], None, cx);
4125 }
4126
4127 if buffer.end_transaction(cx).is_some() {
4128 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4129 if !push_to_history {
4130 buffer.forget_transaction(transaction.id);
4131 }
4132 Some(transaction)
4133 } else {
4134 None
4135 }
4136 });
4137
4138 Ok(transaction)
4139 }
4140
4141 async fn deserialize_workspace_edit(
4142 this: ModelHandle<Self>,
4143 edit: lsp::WorkspaceEdit,
4144 push_to_history: bool,
4145 lsp_adapter: Arc<CachedLspAdapter>,
4146 language_server: Arc<LanguageServer>,
4147 cx: &mut AsyncAppContext,
4148 ) -> Result<ProjectTransaction> {
4149 let fs = this.read_with(cx, |this, _| this.fs.clone());
4150 let mut operations = Vec::new();
4151 if let Some(document_changes) = edit.document_changes {
4152 match document_changes {
4153 lsp::DocumentChanges::Edits(edits) => {
4154 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
4155 }
4156 lsp::DocumentChanges::Operations(ops) => operations = ops,
4157 }
4158 } else if let Some(changes) = edit.changes {
4159 operations.extend(changes.into_iter().map(|(uri, edits)| {
4160 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
4161 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
4162 uri,
4163 version: None,
4164 },
4165 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
4166 })
4167 }));
4168 }
4169
4170 let mut project_transaction = ProjectTransaction::default();
4171 for operation in operations {
4172 match operation {
4173 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
4174 let abs_path = op
4175 .uri
4176 .to_file_path()
4177 .map_err(|_| anyhow!("can't convert URI to path"))?;
4178
4179 if let Some(parent_path) = abs_path.parent() {
4180 fs.create_dir(parent_path).await?;
4181 }
4182 if abs_path.ends_with("/") {
4183 fs.create_dir(&abs_path).await?;
4184 } else {
4185 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
4186 .await?;
4187 }
4188 }
4189
4190 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
4191 let source_abs_path = op
4192 .old_uri
4193 .to_file_path()
4194 .map_err(|_| anyhow!("can't convert URI to path"))?;
4195 let target_abs_path = op
4196 .new_uri
4197 .to_file_path()
4198 .map_err(|_| anyhow!("can't convert URI to path"))?;
4199 fs.rename(
4200 &source_abs_path,
4201 &target_abs_path,
4202 op.options.map(Into::into).unwrap_or_default(),
4203 )
4204 .await?;
4205 }
4206
4207 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
4208 let abs_path = op
4209 .uri
4210 .to_file_path()
4211 .map_err(|_| anyhow!("can't convert URI to path"))?;
4212 let options = op.options.map(Into::into).unwrap_or_default();
4213 if abs_path.ends_with("/") {
4214 fs.remove_dir(&abs_path, options).await?;
4215 } else {
4216 fs.remove_file(&abs_path, options).await?;
4217 }
4218 }
4219
4220 lsp::DocumentChangeOperation::Edit(op) => {
4221 let buffer_to_edit = this
4222 .update(cx, |this, cx| {
4223 this.open_local_buffer_via_lsp(
4224 op.text_document.uri,
4225 language_server.server_id(),
4226 lsp_adapter.name.clone(),
4227 cx,
4228 )
4229 })
4230 .await?;
4231
4232 let edits = this
4233 .update(cx, |this, cx| {
4234 let edits = op.edits.into_iter().map(|edit| match edit {
4235 lsp::OneOf::Left(edit) => edit,
4236 lsp::OneOf::Right(edit) => edit.text_edit,
4237 });
4238 this.edits_from_lsp(
4239 &buffer_to_edit,
4240 edits,
4241 language_server.server_id(),
4242 op.text_document.version,
4243 cx,
4244 )
4245 })
4246 .await?;
4247
4248 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4249 buffer.finalize_last_transaction();
4250 buffer.start_transaction();
4251 for (range, text) in edits {
4252 buffer.edit([(range, text)], None, cx);
4253 }
4254 let transaction = if buffer.end_transaction(cx).is_some() {
4255 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4256 if !push_to_history {
4257 buffer.forget_transaction(transaction.id);
4258 }
4259 Some(transaction)
4260 } else {
4261 None
4262 };
4263
4264 transaction
4265 });
4266 if let Some(transaction) = transaction {
4267 project_transaction.0.insert(buffer_to_edit, transaction);
4268 }
4269 }
4270 }
4271 }
4272
4273 Ok(project_transaction)
4274 }
4275
4276 pub fn prepare_rename<T: ToPointUtf16>(
4277 &self,
4278 buffer: ModelHandle<Buffer>,
4279 position: T,
4280 cx: &mut ModelContext<Self>,
4281 ) -> Task<Result<Option<Range<Anchor>>>> {
4282 let position = position.to_point_utf16(buffer.read(cx));
4283 self.request_lsp(buffer, PrepareRename { position }, cx)
4284 }
4285
4286 pub fn perform_rename<T: ToPointUtf16>(
4287 &self,
4288 buffer: ModelHandle<Buffer>,
4289 position: T,
4290 new_name: String,
4291 push_to_history: bool,
4292 cx: &mut ModelContext<Self>,
4293 ) -> Task<Result<ProjectTransaction>> {
4294 let position = position.to_point_utf16(buffer.read(cx));
4295 self.request_lsp(
4296 buffer,
4297 PerformRename {
4298 position,
4299 new_name,
4300 push_to_history,
4301 },
4302 cx,
4303 )
4304 }
4305
4306 pub fn on_type_format<T: ToPointUtf16>(
4307 &self,
4308 buffer: ModelHandle<Buffer>,
4309 position: T,
4310 trigger: String,
4311 push_to_history: bool,
4312 cx: &mut ModelContext<Self>,
4313 ) -> Task<Result<Option<Transaction>>> {
4314 let tab_size = buffer.read_with(cx, |buffer, cx| {
4315 let language_name = buffer.language().map(|language| language.name());
4316 language_settings(language_name.as_deref(), cx).tab_size
4317 });
4318 let position = position.to_point_utf16(buffer.read(cx));
4319 self.request_lsp(
4320 buffer.clone(),
4321 OnTypeFormatting {
4322 position,
4323 trigger,
4324 options: lsp_command::lsp_formatting_options(tab_size.get()).into(),
4325 push_to_history,
4326 },
4327 cx,
4328 )
4329 }
4330
4331 #[allow(clippy::type_complexity)]
4332 pub fn search(
4333 &self,
4334 query: SearchQuery,
4335 cx: &mut ModelContext<Self>,
4336 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
4337 if self.is_local() {
4338 let snapshots = self
4339 .visible_worktrees(cx)
4340 .filter_map(|tree| {
4341 let tree = tree.read(cx).as_local()?;
4342 Some(tree.snapshot())
4343 })
4344 .collect::<Vec<_>>();
4345
4346 let background = cx.background().clone();
4347 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
4348 if path_count == 0 {
4349 return Task::ready(Ok(Default::default()));
4350 }
4351 let workers = background.num_cpus().min(path_count);
4352 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
4353 cx.background()
4354 .spawn({
4355 let fs = self.fs.clone();
4356 let background = cx.background().clone();
4357 let query = query.clone();
4358 async move {
4359 let fs = &fs;
4360 let query = &query;
4361 let matching_paths_tx = &matching_paths_tx;
4362 let paths_per_worker = (path_count + workers - 1) / workers;
4363 let snapshots = &snapshots;
4364 background
4365 .scoped(|scope| {
4366 for worker_ix in 0..workers {
4367 let worker_start_ix = worker_ix * paths_per_worker;
4368 let worker_end_ix = worker_start_ix + paths_per_worker;
4369 scope.spawn(async move {
4370 let mut snapshot_start_ix = 0;
4371 let mut abs_path = PathBuf::new();
4372 for snapshot in snapshots {
4373 let snapshot_end_ix =
4374 snapshot_start_ix + snapshot.visible_file_count();
4375 if worker_end_ix <= snapshot_start_ix {
4376 break;
4377 } else if worker_start_ix > snapshot_end_ix {
4378 snapshot_start_ix = snapshot_end_ix;
4379 continue;
4380 } else {
4381 let start_in_snapshot = worker_start_ix
4382 .saturating_sub(snapshot_start_ix);
4383 let end_in_snapshot =
4384 cmp::min(worker_end_ix, snapshot_end_ix)
4385 - snapshot_start_ix;
4386
4387 for entry in snapshot
4388 .files(false, start_in_snapshot)
4389 .take(end_in_snapshot - start_in_snapshot)
4390 {
4391 if matching_paths_tx.is_closed() {
4392 break;
4393 }
4394 let matches = if query
4395 .file_matches(Some(&entry.path))
4396 {
4397 abs_path.clear();
4398 abs_path.push(&snapshot.abs_path());
4399 abs_path.push(&entry.path);
4400 if let Some(file) =
4401 fs.open_sync(&abs_path).await.log_err()
4402 {
4403 query.detect(file).unwrap_or(false)
4404 } else {
4405 false
4406 }
4407 } else {
4408 false
4409 };
4410
4411 if matches {
4412 let project_path =
4413 (snapshot.id(), entry.path.clone());
4414 if matching_paths_tx
4415 .send(project_path)
4416 .await
4417 .is_err()
4418 {
4419 break;
4420 }
4421 }
4422 }
4423
4424 snapshot_start_ix = snapshot_end_ix;
4425 }
4426 }
4427 });
4428 }
4429 })
4430 .await;
4431 }
4432 })
4433 .detach();
4434
4435 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
4436 let open_buffers = self
4437 .opened_buffers
4438 .values()
4439 .filter_map(|b| b.upgrade(cx))
4440 .collect::<HashSet<_>>();
4441 cx.spawn(|this, cx| async move {
4442 for buffer in &open_buffers {
4443 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4444 buffers_tx.send((buffer.clone(), snapshot)).await?;
4445 }
4446
4447 let open_buffers = Rc::new(RefCell::new(open_buffers));
4448 while let Some(project_path) = matching_paths_rx.next().await {
4449 if buffers_tx.is_closed() {
4450 break;
4451 }
4452
4453 let this = this.clone();
4454 let open_buffers = open_buffers.clone();
4455 let buffers_tx = buffers_tx.clone();
4456 cx.spawn(|mut cx| async move {
4457 if let Some(buffer) = this
4458 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
4459 .await
4460 .log_err()
4461 {
4462 if open_buffers.borrow_mut().insert(buffer.clone()) {
4463 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4464 buffers_tx.send((buffer, snapshot)).await?;
4465 }
4466 }
4467
4468 Ok::<_, anyhow::Error>(())
4469 })
4470 .detach();
4471 }
4472
4473 Ok::<_, anyhow::Error>(())
4474 })
4475 .detach_and_log_err(cx);
4476
4477 let background = cx.background().clone();
4478 cx.background().spawn(async move {
4479 let query = &query;
4480 let mut matched_buffers = Vec::new();
4481 for _ in 0..workers {
4482 matched_buffers.push(HashMap::default());
4483 }
4484 background
4485 .scoped(|scope| {
4486 for worker_matched_buffers in matched_buffers.iter_mut() {
4487 let mut buffers_rx = buffers_rx.clone();
4488 scope.spawn(async move {
4489 while let Some((buffer, snapshot)) = buffers_rx.next().await {
4490 let buffer_matches = if query.file_matches(
4491 snapshot.file().map(|file| file.path().as_ref()),
4492 ) {
4493 query
4494 .search(snapshot.as_rope())
4495 .await
4496 .iter()
4497 .map(|range| {
4498 snapshot.anchor_before(range.start)
4499 ..snapshot.anchor_after(range.end)
4500 })
4501 .collect()
4502 } else {
4503 Vec::new()
4504 };
4505 if !buffer_matches.is_empty() {
4506 worker_matched_buffers
4507 .insert(buffer.clone(), buffer_matches);
4508 }
4509 }
4510 });
4511 }
4512 })
4513 .await;
4514 Ok(matched_buffers.into_iter().flatten().collect())
4515 })
4516 } else if let Some(project_id) = self.remote_id() {
4517 let request = self.client.request(query.to_proto(project_id));
4518 cx.spawn(|this, mut cx| async move {
4519 let response = request.await?;
4520 let mut result = HashMap::default();
4521 for location in response.locations {
4522 let target_buffer = this
4523 .update(&mut cx, |this, cx| {
4524 this.wait_for_remote_buffer(location.buffer_id, cx)
4525 })
4526 .await?;
4527 let start = location
4528 .start
4529 .and_then(deserialize_anchor)
4530 .ok_or_else(|| anyhow!("missing target start"))?;
4531 let end = location
4532 .end
4533 .and_then(deserialize_anchor)
4534 .ok_or_else(|| anyhow!("missing target end"))?;
4535 result
4536 .entry(target_buffer)
4537 .or_insert(Vec::new())
4538 .push(start..end)
4539 }
4540 Ok(result)
4541 })
4542 } else {
4543 Task::ready(Ok(Default::default()))
4544 }
4545 }
4546
4547 // TODO: Wire this up to allow selecting a server?
4548 fn request_lsp<R: LspCommand>(
4549 &self,
4550 buffer_handle: ModelHandle<Buffer>,
4551 request: R,
4552 cx: &mut ModelContext<Self>,
4553 ) -> Task<Result<R::Response>>
4554 where
4555 <R::LspRequest as lsp::request::Request>::Result: Send,
4556 {
4557 let buffer = buffer_handle.read(cx);
4558 if self.is_local() {
4559 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
4560 if let Some((file, language_server)) = file.zip(
4561 self.primary_language_servers_for_buffer(buffer, cx)
4562 .map(|(_, server)| server.clone()),
4563 ) {
4564 let lsp_params = request.to_lsp(&file.abs_path(cx), buffer, &language_server, cx);
4565 return cx.spawn(|this, cx| async move {
4566 if !request.check_capabilities(language_server.capabilities()) {
4567 return Ok(Default::default());
4568 }
4569
4570 let response = language_server
4571 .request::<R::LspRequest>(lsp_params)
4572 .await
4573 .context("lsp request failed")?;
4574 request
4575 .response_from_lsp(
4576 response,
4577 this,
4578 buffer_handle,
4579 language_server.server_id(),
4580 cx,
4581 )
4582 .await
4583 });
4584 }
4585 } else if let Some(project_id) = self.remote_id() {
4586 let rpc = self.client.clone();
4587 let message = request.to_proto(project_id, buffer);
4588 return cx.spawn_weak(|this, cx| async move {
4589 // Ensure the project is still alive by the time the task
4590 // is scheduled.
4591 this.upgrade(&cx)
4592 .ok_or_else(|| anyhow!("project dropped"))?;
4593
4594 let response = rpc.request(message).await?;
4595
4596 let this = this
4597 .upgrade(&cx)
4598 .ok_or_else(|| anyhow!("project dropped"))?;
4599 if this.read_with(&cx, |this, _| this.is_read_only()) {
4600 Err(anyhow!("disconnected before completing request"))
4601 } else {
4602 request
4603 .response_from_proto(response, this, buffer_handle, cx)
4604 .await
4605 }
4606 });
4607 }
4608 Task::ready(Ok(Default::default()))
4609 }
4610
4611 pub fn find_or_create_local_worktree(
4612 &mut self,
4613 abs_path: impl AsRef<Path>,
4614 visible: bool,
4615 cx: &mut ModelContext<Self>,
4616 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
4617 let abs_path = abs_path.as_ref();
4618 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4619 Task::ready(Ok((tree, relative_path)))
4620 } else {
4621 let worktree = self.create_local_worktree(abs_path, visible, cx);
4622 cx.foreground()
4623 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4624 }
4625 }
4626
4627 pub fn find_local_worktree(
4628 &self,
4629 abs_path: &Path,
4630 cx: &AppContext,
4631 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4632 for tree in &self.worktrees {
4633 if let Some(tree) = tree.upgrade(cx) {
4634 if let Some(relative_path) = tree
4635 .read(cx)
4636 .as_local()
4637 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4638 {
4639 return Some((tree.clone(), relative_path.into()));
4640 }
4641 }
4642 }
4643 None
4644 }
4645
4646 pub fn is_shared(&self) -> bool {
4647 match &self.client_state {
4648 Some(ProjectClientState::Local { .. }) => true,
4649 _ => false,
4650 }
4651 }
4652
4653 fn create_local_worktree(
4654 &mut self,
4655 abs_path: impl AsRef<Path>,
4656 visible: bool,
4657 cx: &mut ModelContext<Self>,
4658 ) -> Task<Result<ModelHandle<Worktree>>> {
4659 let fs = self.fs.clone();
4660 let client = self.client.clone();
4661 let next_entry_id = self.next_entry_id.clone();
4662 let path: Arc<Path> = abs_path.as_ref().into();
4663 let task = self
4664 .loading_local_worktrees
4665 .entry(path.clone())
4666 .or_insert_with(|| {
4667 cx.spawn(|project, mut cx| {
4668 async move {
4669 let worktree = Worktree::local(
4670 client.clone(),
4671 path.clone(),
4672 visible,
4673 fs,
4674 next_entry_id,
4675 &mut cx,
4676 )
4677 .await;
4678
4679 project.update(&mut cx, |project, _| {
4680 project.loading_local_worktrees.remove(&path);
4681 });
4682
4683 let worktree = worktree?;
4684 project.update(&mut cx, |project, cx| project.add_worktree(&worktree, cx));
4685 Ok(worktree)
4686 }
4687 .map_err(Arc::new)
4688 })
4689 .shared()
4690 })
4691 .clone();
4692 cx.foreground().spawn(async move {
4693 match task.await {
4694 Ok(worktree) => Ok(worktree),
4695 Err(err) => Err(anyhow!("{}", err)),
4696 }
4697 })
4698 }
4699
4700 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4701 self.worktrees.retain(|worktree| {
4702 if let Some(worktree) = worktree.upgrade(cx) {
4703 let id = worktree.read(cx).id();
4704 if id == id_to_remove {
4705 cx.emit(Event::WorktreeRemoved(id));
4706 false
4707 } else {
4708 true
4709 }
4710 } else {
4711 false
4712 }
4713 });
4714 self.metadata_changed(cx);
4715 }
4716
4717 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4718 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
4719 if worktree.read(cx).is_local() {
4720 cx.subscribe(worktree, |this, worktree, event, cx| match event {
4721 worktree::Event::UpdatedEntries(changes) => {
4722 this.update_local_worktree_buffers(&worktree, &changes, cx);
4723 this.update_local_worktree_language_servers(&worktree, changes, cx);
4724 }
4725 worktree::Event::UpdatedGitRepositories(updated_repos) => {
4726 this.update_local_worktree_buffers_git_repos(worktree, updated_repos, cx)
4727 }
4728 })
4729 .detach();
4730 }
4731
4732 let push_strong_handle = {
4733 let worktree = worktree.read(cx);
4734 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4735 };
4736 if push_strong_handle {
4737 self.worktrees
4738 .push(WorktreeHandle::Strong(worktree.clone()));
4739 } else {
4740 self.worktrees
4741 .push(WorktreeHandle::Weak(worktree.downgrade()));
4742 }
4743
4744 cx.observe_release(worktree, |this, worktree, cx| {
4745 let _ = this.remove_worktree(worktree.id(), cx);
4746 })
4747 .detach();
4748
4749 cx.emit(Event::WorktreeAdded);
4750 self.metadata_changed(cx);
4751 }
4752
4753 fn update_local_worktree_buffers(
4754 &mut self,
4755 worktree_handle: &ModelHandle<Worktree>,
4756 changes: &HashMap<(Arc<Path>, ProjectEntryId), PathChange>,
4757 cx: &mut ModelContext<Self>,
4758 ) {
4759 let snapshot = worktree_handle.read(cx).snapshot();
4760
4761 let mut renamed_buffers = Vec::new();
4762 for (path, entry_id) in changes.keys() {
4763 let worktree_id = worktree_handle.read(cx).id();
4764 let project_path = ProjectPath {
4765 worktree_id,
4766 path: path.clone(),
4767 };
4768
4769 let buffer_id = match self.local_buffer_ids_by_entry_id.get(entry_id) {
4770 Some(&buffer_id) => buffer_id,
4771 None => match self.local_buffer_ids_by_path.get(&project_path) {
4772 Some(&buffer_id) => buffer_id,
4773 None => continue,
4774 },
4775 };
4776
4777 let open_buffer = self.opened_buffers.get(&buffer_id);
4778 let buffer = if let Some(buffer) = open_buffer.and_then(|buffer| buffer.upgrade(cx)) {
4779 buffer
4780 } else {
4781 self.opened_buffers.remove(&buffer_id);
4782 self.local_buffer_ids_by_path.remove(&project_path);
4783 self.local_buffer_ids_by_entry_id.remove(entry_id);
4784 continue;
4785 };
4786
4787 buffer.update(cx, |buffer, cx| {
4788 if let Some(old_file) = File::from_dyn(buffer.file()) {
4789 if old_file.worktree != *worktree_handle {
4790 return;
4791 }
4792
4793 let new_file = if let Some(entry) = snapshot.entry_for_id(old_file.entry_id) {
4794 File {
4795 is_local: true,
4796 entry_id: entry.id,
4797 mtime: entry.mtime,
4798 path: entry.path.clone(),
4799 worktree: worktree_handle.clone(),
4800 is_deleted: false,
4801 }
4802 } else if let Some(entry) = snapshot.entry_for_path(old_file.path().as_ref()) {
4803 File {
4804 is_local: true,
4805 entry_id: entry.id,
4806 mtime: entry.mtime,
4807 path: entry.path.clone(),
4808 worktree: worktree_handle.clone(),
4809 is_deleted: false,
4810 }
4811 } else {
4812 File {
4813 is_local: true,
4814 entry_id: old_file.entry_id,
4815 path: old_file.path().clone(),
4816 mtime: old_file.mtime(),
4817 worktree: worktree_handle.clone(),
4818 is_deleted: true,
4819 }
4820 };
4821
4822 let old_path = old_file.abs_path(cx);
4823 if new_file.abs_path(cx) != old_path {
4824 renamed_buffers.push((cx.handle(), old_file.clone()));
4825 self.local_buffer_ids_by_path.remove(&project_path);
4826 self.local_buffer_ids_by_path.insert(
4827 ProjectPath {
4828 worktree_id,
4829 path: path.clone(),
4830 },
4831 buffer_id,
4832 );
4833 }
4834
4835 if new_file.entry_id != *entry_id {
4836 self.local_buffer_ids_by_entry_id.remove(entry_id);
4837 self.local_buffer_ids_by_entry_id
4838 .insert(new_file.entry_id, buffer_id);
4839 }
4840
4841 if new_file != *old_file {
4842 if let Some(project_id) = self.remote_id() {
4843 self.client
4844 .send(proto::UpdateBufferFile {
4845 project_id,
4846 buffer_id: buffer_id as u64,
4847 file: Some(new_file.to_proto()),
4848 })
4849 .log_err();
4850 }
4851
4852 buffer.file_updated(Arc::new(new_file), cx).detach();
4853 }
4854 }
4855 });
4856 }
4857
4858 for (buffer, old_file) in renamed_buffers {
4859 self.unregister_buffer_from_language_servers(&buffer, &old_file, cx);
4860 self.detect_language_for_buffer(&buffer, cx);
4861 self.register_buffer_with_language_servers(&buffer, cx);
4862 }
4863 }
4864
4865 fn update_local_worktree_language_servers(
4866 &mut self,
4867 worktree_handle: &ModelHandle<Worktree>,
4868 changes: &HashMap<(Arc<Path>, ProjectEntryId), PathChange>,
4869 cx: &mut ModelContext<Self>,
4870 ) {
4871 if changes.is_empty() {
4872 return;
4873 }
4874
4875 let worktree_id = worktree_handle.read(cx).id();
4876 let mut language_server_ids = self
4877 .language_server_ids
4878 .iter()
4879 .filter_map(|((server_worktree_id, _), server_id)| {
4880 (*server_worktree_id == worktree_id).then_some(*server_id)
4881 })
4882 .collect::<Vec<_>>();
4883 language_server_ids.sort();
4884 language_server_ids.dedup();
4885
4886 let abs_path = worktree_handle.read(cx).abs_path();
4887 for server_id in &language_server_ids {
4888 if let Some(server) = self.language_servers.get(server_id) {
4889 if let LanguageServerState::Running {
4890 server,
4891 watched_paths,
4892 ..
4893 } = server
4894 {
4895 if let Some(watched_paths) = watched_paths.get(&worktree_id) {
4896 let params = lsp::DidChangeWatchedFilesParams {
4897 changes: changes
4898 .iter()
4899 .filter_map(|((path, _), change)| {
4900 if watched_paths.is_match(&path) {
4901 Some(lsp::FileEvent {
4902 uri: lsp::Url::from_file_path(abs_path.join(path))
4903 .unwrap(),
4904 typ: match change {
4905 PathChange::Added => lsp::FileChangeType::CREATED,
4906 PathChange::Removed => lsp::FileChangeType::DELETED,
4907 PathChange::Updated
4908 | PathChange::AddedOrUpdated => {
4909 lsp::FileChangeType::CHANGED
4910 }
4911 },
4912 })
4913 } else {
4914 None
4915 }
4916 })
4917 .collect(),
4918 };
4919
4920 if !params.changes.is_empty() {
4921 server
4922 .notify::<lsp::notification::DidChangeWatchedFiles>(params)
4923 .log_err();
4924 }
4925 }
4926 }
4927 }
4928 }
4929 }
4930
4931 fn update_local_worktree_buffers_git_repos(
4932 &mut self,
4933 worktree_handle: ModelHandle<Worktree>,
4934 repos: &HashMap<Arc<Path>, LocalRepositoryEntry>,
4935 cx: &mut ModelContext<Self>,
4936 ) {
4937 debug_assert!(worktree_handle.read(cx).is_local());
4938
4939 // Setup the pending buffers
4940 let future_buffers = self
4941 .loading_buffers_by_path
4942 .iter()
4943 .filter_map(|(path, receiver)| {
4944 let path = &path.path;
4945 let (work_directory, repo) = repos
4946 .iter()
4947 .find(|(work_directory, _)| path.starts_with(work_directory))?;
4948
4949 let repo_relative_path = path.strip_prefix(work_directory).log_err()?;
4950
4951 let receiver = receiver.clone();
4952 let repo_ptr = repo.repo_ptr.clone();
4953 let repo_relative_path = repo_relative_path.to_owned();
4954 Some(async move {
4955 pump_loading_buffer_reciever(receiver)
4956 .await
4957 .ok()
4958 .map(|buffer| (buffer, repo_relative_path, repo_ptr))
4959 })
4960 })
4961 .collect::<FuturesUnordered<_>>()
4962 .filter_map(|result| async move {
4963 let (buffer_handle, repo_relative_path, repo_ptr) = result?;
4964
4965 let lock = repo_ptr.lock();
4966 lock.load_index_text(&repo_relative_path)
4967 .map(|diff_base| (diff_base, buffer_handle))
4968 });
4969
4970 let update_diff_base_fn = update_diff_base(self);
4971 cx.spawn(|_, mut cx| async move {
4972 let diff_base_tasks = cx
4973 .background()
4974 .spawn(future_buffers.collect::<Vec<_>>())
4975 .await;
4976
4977 for (diff_base, buffer) in diff_base_tasks.into_iter() {
4978 update_diff_base_fn(Some(diff_base), buffer, &mut cx);
4979 }
4980 })
4981 .detach();
4982
4983 // And the current buffers
4984 for (_, buffer) in &self.opened_buffers {
4985 if let Some(buffer) = buffer.upgrade(cx) {
4986 let file = match File::from_dyn(buffer.read(cx).file()) {
4987 Some(file) => file,
4988 None => continue,
4989 };
4990 if file.worktree != worktree_handle {
4991 continue;
4992 }
4993
4994 let path = file.path().clone();
4995
4996 let worktree = worktree_handle.read(cx);
4997
4998 let (work_directory, repo) = match repos
4999 .iter()
5000 .find(|(work_directory, _)| path.starts_with(work_directory))
5001 {
5002 Some(repo) => repo.clone(),
5003 None => continue,
5004 };
5005
5006 let relative_repo = match path.strip_prefix(work_directory).log_err() {
5007 Some(relative_repo) => relative_repo.to_owned(),
5008 None => continue,
5009 };
5010
5011 drop(worktree);
5012
5013 let update_diff_base_fn = update_diff_base(self);
5014 let git_ptr = repo.repo_ptr.clone();
5015 let diff_base_task = cx
5016 .background()
5017 .spawn(async move { git_ptr.lock().load_index_text(&relative_repo) });
5018
5019 cx.spawn(|_, mut cx| async move {
5020 let diff_base = diff_base_task.await;
5021 update_diff_base_fn(diff_base, buffer, &mut cx);
5022 })
5023 .detach();
5024 }
5025 }
5026 }
5027
5028 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
5029 let new_active_entry = entry.and_then(|project_path| {
5030 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
5031 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
5032 Some(entry.id)
5033 });
5034 if new_active_entry != self.active_entry {
5035 self.active_entry = new_active_entry;
5036 cx.emit(Event::ActiveEntryChanged(new_active_entry));
5037 }
5038 }
5039
5040 pub fn language_servers_running_disk_based_diagnostics(
5041 &self,
5042 ) -> impl Iterator<Item = LanguageServerId> + '_ {
5043 self.language_server_statuses
5044 .iter()
5045 .filter_map(|(id, status)| {
5046 if status.has_pending_diagnostic_updates {
5047 Some(*id)
5048 } else {
5049 None
5050 }
5051 })
5052 }
5053
5054 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
5055 let mut summary = DiagnosticSummary::default();
5056 for (_, _, path_summary) in self.diagnostic_summaries(cx) {
5057 summary.error_count += path_summary.error_count;
5058 summary.warning_count += path_summary.warning_count;
5059 }
5060 summary
5061 }
5062
5063 pub fn diagnostic_summaries<'a>(
5064 &'a self,
5065 cx: &'a AppContext,
5066 ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
5067 self.visible_worktrees(cx).flat_map(move |worktree| {
5068 let worktree = worktree.read(cx);
5069 let worktree_id = worktree.id();
5070 worktree
5071 .diagnostic_summaries()
5072 .map(move |(path, server_id, summary)| {
5073 (ProjectPath { worktree_id, path }, server_id, summary)
5074 })
5075 })
5076 }
5077
5078 pub fn disk_based_diagnostics_started(
5079 &mut self,
5080 language_server_id: LanguageServerId,
5081 cx: &mut ModelContext<Self>,
5082 ) {
5083 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
5084 }
5085
5086 pub fn disk_based_diagnostics_finished(
5087 &mut self,
5088 language_server_id: LanguageServerId,
5089 cx: &mut ModelContext<Self>,
5090 ) {
5091 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
5092 }
5093
5094 pub fn active_entry(&self) -> Option<ProjectEntryId> {
5095 self.active_entry
5096 }
5097
5098 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
5099 self.worktree_for_id(path.worktree_id, cx)?
5100 .read(cx)
5101 .entry_for_path(&path.path)
5102 .cloned()
5103 }
5104
5105 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
5106 let worktree = self.worktree_for_entry(entry_id, cx)?;
5107 let worktree = worktree.read(cx);
5108 let worktree_id = worktree.id();
5109 let path = worktree.entry_for_id(entry_id)?.path.clone();
5110 Some(ProjectPath { worktree_id, path })
5111 }
5112
5113 // RPC message handlers
5114
5115 async fn handle_unshare_project(
5116 this: ModelHandle<Self>,
5117 _: TypedEnvelope<proto::UnshareProject>,
5118 _: Arc<Client>,
5119 mut cx: AsyncAppContext,
5120 ) -> Result<()> {
5121 this.update(&mut cx, |this, cx| {
5122 if this.is_local() {
5123 this.unshare(cx)?;
5124 } else {
5125 this.disconnected_from_host(cx);
5126 }
5127 Ok(())
5128 })
5129 }
5130
5131 async fn handle_add_collaborator(
5132 this: ModelHandle<Self>,
5133 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
5134 _: Arc<Client>,
5135 mut cx: AsyncAppContext,
5136 ) -> Result<()> {
5137 let collaborator = envelope
5138 .payload
5139 .collaborator
5140 .take()
5141 .ok_or_else(|| anyhow!("empty collaborator"))?;
5142
5143 let collaborator = Collaborator::from_proto(collaborator)?;
5144 this.update(&mut cx, |this, cx| {
5145 this.shared_buffers.remove(&collaborator.peer_id);
5146 this.collaborators
5147 .insert(collaborator.peer_id, collaborator);
5148 cx.notify();
5149 });
5150
5151 Ok(())
5152 }
5153
5154 async fn handle_update_project_collaborator(
5155 this: ModelHandle<Self>,
5156 envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
5157 _: Arc<Client>,
5158 mut cx: AsyncAppContext,
5159 ) -> Result<()> {
5160 let old_peer_id = envelope
5161 .payload
5162 .old_peer_id
5163 .ok_or_else(|| anyhow!("missing old peer id"))?;
5164 let new_peer_id = envelope
5165 .payload
5166 .new_peer_id
5167 .ok_or_else(|| anyhow!("missing new peer id"))?;
5168 this.update(&mut cx, |this, cx| {
5169 let collaborator = this
5170 .collaborators
5171 .remove(&old_peer_id)
5172 .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
5173 let is_host = collaborator.replica_id == 0;
5174 this.collaborators.insert(new_peer_id, collaborator);
5175
5176 let buffers = this.shared_buffers.remove(&old_peer_id);
5177 log::info!(
5178 "peer {} became {}. moving buffers {:?}",
5179 old_peer_id,
5180 new_peer_id,
5181 &buffers
5182 );
5183 if let Some(buffers) = buffers {
5184 this.shared_buffers.insert(new_peer_id, buffers);
5185 }
5186
5187 if is_host {
5188 this.opened_buffers
5189 .retain(|_, buffer| !matches!(buffer, OpenBuffer::Operations(_)));
5190 this.buffer_ordered_messages_tx
5191 .unbounded_send(BufferOrderedMessage::Resync)
5192 .unwrap();
5193 }
5194
5195 cx.emit(Event::CollaboratorUpdated {
5196 old_peer_id,
5197 new_peer_id,
5198 });
5199 cx.notify();
5200 Ok(())
5201 })
5202 }
5203
5204 async fn handle_remove_collaborator(
5205 this: ModelHandle<Self>,
5206 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
5207 _: Arc<Client>,
5208 mut cx: AsyncAppContext,
5209 ) -> Result<()> {
5210 this.update(&mut cx, |this, cx| {
5211 let peer_id = envelope
5212 .payload
5213 .peer_id
5214 .ok_or_else(|| anyhow!("invalid peer id"))?;
5215 let replica_id = this
5216 .collaborators
5217 .remove(&peer_id)
5218 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
5219 .replica_id;
5220 for buffer in this.opened_buffers.values() {
5221 if let Some(buffer) = buffer.upgrade(cx) {
5222 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
5223 }
5224 }
5225 this.shared_buffers.remove(&peer_id);
5226
5227 cx.emit(Event::CollaboratorLeft(peer_id));
5228 cx.notify();
5229 Ok(())
5230 })
5231 }
5232
5233 async fn handle_update_project(
5234 this: ModelHandle<Self>,
5235 envelope: TypedEnvelope<proto::UpdateProject>,
5236 _: Arc<Client>,
5237 mut cx: AsyncAppContext,
5238 ) -> Result<()> {
5239 this.update(&mut cx, |this, cx| {
5240 // Don't handle messages that were sent before the response to us joining the project
5241 if envelope.message_id > this.join_project_response_message_id {
5242 this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
5243 }
5244 Ok(())
5245 })
5246 }
5247
5248 async fn handle_update_worktree(
5249 this: ModelHandle<Self>,
5250 envelope: TypedEnvelope<proto::UpdateWorktree>,
5251 _: Arc<Client>,
5252 mut cx: AsyncAppContext,
5253 ) -> Result<()> {
5254 this.update(&mut cx, |this, cx| {
5255 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5256 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5257 worktree.update(cx, |worktree, _| {
5258 let worktree = worktree.as_remote_mut().unwrap();
5259 worktree.update_from_remote(envelope.payload);
5260 });
5261 }
5262 Ok(())
5263 })
5264 }
5265
5266 async fn handle_create_project_entry(
5267 this: ModelHandle<Self>,
5268 envelope: TypedEnvelope<proto::CreateProjectEntry>,
5269 _: Arc<Client>,
5270 mut cx: AsyncAppContext,
5271 ) -> Result<proto::ProjectEntryResponse> {
5272 let worktree = this.update(&mut cx, |this, cx| {
5273 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5274 this.worktree_for_id(worktree_id, cx)
5275 .ok_or_else(|| anyhow!("worktree not found"))
5276 })?;
5277 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5278 let entry = worktree
5279 .update(&mut cx, |worktree, cx| {
5280 let worktree = worktree.as_local_mut().unwrap();
5281 let path = PathBuf::from(envelope.payload.path);
5282 worktree.create_entry(path, envelope.payload.is_directory, cx)
5283 })
5284 .await?;
5285 Ok(proto::ProjectEntryResponse {
5286 entry: Some((&entry).into()),
5287 worktree_scan_id: worktree_scan_id as u64,
5288 })
5289 }
5290
5291 async fn handle_rename_project_entry(
5292 this: ModelHandle<Self>,
5293 envelope: TypedEnvelope<proto::RenameProjectEntry>,
5294 _: Arc<Client>,
5295 mut cx: AsyncAppContext,
5296 ) -> Result<proto::ProjectEntryResponse> {
5297 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5298 let worktree = this.read_with(&cx, |this, cx| {
5299 this.worktree_for_entry(entry_id, cx)
5300 .ok_or_else(|| anyhow!("worktree not found"))
5301 })?;
5302 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5303 let entry = worktree
5304 .update(&mut cx, |worktree, cx| {
5305 let new_path = PathBuf::from(envelope.payload.new_path);
5306 worktree
5307 .as_local_mut()
5308 .unwrap()
5309 .rename_entry(entry_id, new_path, cx)
5310 .ok_or_else(|| anyhow!("invalid entry"))
5311 })?
5312 .await?;
5313 Ok(proto::ProjectEntryResponse {
5314 entry: Some((&entry).into()),
5315 worktree_scan_id: worktree_scan_id as u64,
5316 })
5317 }
5318
5319 async fn handle_copy_project_entry(
5320 this: ModelHandle<Self>,
5321 envelope: TypedEnvelope<proto::CopyProjectEntry>,
5322 _: Arc<Client>,
5323 mut cx: AsyncAppContext,
5324 ) -> Result<proto::ProjectEntryResponse> {
5325 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5326 let worktree = this.read_with(&cx, |this, cx| {
5327 this.worktree_for_entry(entry_id, cx)
5328 .ok_or_else(|| anyhow!("worktree not found"))
5329 })?;
5330 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5331 let entry = worktree
5332 .update(&mut cx, |worktree, cx| {
5333 let new_path = PathBuf::from(envelope.payload.new_path);
5334 worktree
5335 .as_local_mut()
5336 .unwrap()
5337 .copy_entry(entry_id, new_path, cx)
5338 .ok_or_else(|| anyhow!("invalid entry"))
5339 })?
5340 .await?;
5341 Ok(proto::ProjectEntryResponse {
5342 entry: Some((&entry).into()),
5343 worktree_scan_id: worktree_scan_id as u64,
5344 })
5345 }
5346
5347 async fn handle_delete_project_entry(
5348 this: ModelHandle<Self>,
5349 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
5350 _: Arc<Client>,
5351 mut cx: AsyncAppContext,
5352 ) -> Result<proto::ProjectEntryResponse> {
5353 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5354
5355 this.update(&mut cx, |_, cx| cx.emit(Event::DeletedEntry(entry_id)));
5356
5357 let worktree = this.read_with(&cx, |this, cx| {
5358 this.worktree_for_entry(entry_id, cx)
5359 .ok_or_else(|| anyhow!("worktree not found"))
5360 })?;
5361 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5362 worktree
5363 .update(&mut cx, |worktree, cx| {
5364 worktree
5365 .as_local_mut()
5366 .unwrap()
5367 .delete_entry(entry_id, cx)
5368 .ok_or_else(|| anyhow!("invalid entry"))
5369 })?
5370 .await?;
5371 Ok(proto::ProjectEntryResponse {
5372 entry: None,
5373 worktree_scan_id: worktree_scan_id as u64,
5374 })
5375 }
5376
5377 async fn handle_update_diagnostic_summary(
5378 this: ModelHandle<Self>,
5379 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
5380 _: Arc<Client>,
5381 mut cx: AsyncAppContext,
5382 ) -> Result<()> {
5383 this.update(&mut cx, |this, cx| {
5384 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5385 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5386 if let Some(summary) = envelope.payload.summary {
5387 let project_path = ProjectPath {
5388 worktree_id,
5389 path: Path::new(&summary.path).into(),
5390 };
5391 worktree.update(cx, |worktree, _| {
5392 worktree
5393 .as_remote_mut()
5394 .unwrap()
5395 .update_diagnostic_summary(project_path.path.clone(), &summary);
5396 });
5397 cx.emit(Event::DiagnosticsUpdated {
5398 language_server_id: LanguageServerId(summary.language_server_id as usize),
5399 path: project_path,
5400 });
5401 }
5402 }
5403 Ok(())
5404 })
5405 }
5406
5407 async fn handle_start_language_server(
5408 this: ModelHandle<Self>,
5409 envelope: TypedEnvelope<proto::StartLanguageServer>,
5410 _: Arc<Client>,
5411 mut cx: AsyncAppContext,
5412 ) -> Result<()> {
5413 let server = envelope
5414 .payload
5415 .server
5416 .ok_or_else(|| anyhow!("invalid server"))?;
5417 this.update(&mut cx, |this, cx| {
5418 this.language_server_statuses.insert(
5419 LanguageServerId(server.id as usize),
5420 LanguageServerStatus {
5421 name: server.name,
5422 pending_work: Default::default(),
5423 has_pending_diagnostic_updates: false,
5424 progress_tokens: Default::default(),
5425 },
5426 );
5427 cx.notify();
5428 });
5429 Ok(())
5430 }
5431
5432 async fn handle_update_language_server(
5433 this: ModelHandle<Self>,
5434 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
5435 _: Arc<Client>,
5436 mut cx: AsyncAppContext,
5437 ) -> Result<()> {
5438 this.update(&mut cx, |this, cx| {
5439 let language_server_id = LanguageServerId(envelope.payload.language_server_id as usize);
5440
5441 match envelope
5442 .payload
5443 .variant
5444 .ok_or_else(|| anyhow!("invalid variant"))?
5445 {
5446 proto::update_language_server::Variant::WorkStart(payload) => {
5447 this.on_lsp_work_start(
5448 language_server_id,
5449 payload.token,
5450 LanguageServerProgress {
5451 message: payload.message,
5452 percentage: payload.percentage.map(|p| p as usize),
5453 last_update_at: Instant::now(),
5454 },
5455 cx,
5456 );
5457 }
5458
5459 proto::update_language_server::Variant::WorkProgress(payload) => {
5460 this.on_lsp_work_progress(
5461 language_server_id,
5462 payload.token,
5463 LanguageServerProgress {
5464 message: payload.message,
5465 percentage: payload.percentage.map(|p| p as usize),
5466 last_update_at: Instant::now(),
5467 },
5468 cx,
5469 );
5470 }
5471
5472 proto::update_language_server::Variant::WorkEnd(payload) => {
5473 this.on_lsp_work_end(language_server_id, payload.token, cx);
5474 }
5475
5476 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
5477 this.disk_based_diagnostics_started(language_server_id, cx);
5478 }
5479
5480 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
5481 this.disk_based_diagnostics_finished(language_server_id, cx)
5482 }
5483 }
5484
5485 Ok(())
5486 })
5487 }
5488
5489 async fn handle_update_buffer(
5490 this: ModelHandle<Self>,
5491 envelope: TypedEnvelope<proto::UpdateBuffer>,
5492 _: Arc<Client>,
5493 mut cx: AsyncAppContext,
5494 ) -> Result<proto::Ack> {
5495 this.update(&mut cx, |this, cx| {
5496 let payload = envelope.payload.clone();
5497 let buffer_id = payload.buffer_id;
5498 let ops = payload
5499 .operations
5500 .into_iter()
5501 .map(language::proto::deserialize_operation)
5502 .collect::<Result<Vec<_>, _>>()?;
5503 let is_remote = this.is_remote();
5504 match this.opened_buffers.entry(buffer_id) {
5505 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
5506 OpenBuffer::Strong(buffer) => {
5507 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
5508 }
5509 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
5510 OpenBuffer::Weak(_) => {}
5511 },
5512 hash_map::Entry::Vacant(e) => {
5513 assert!(
5514 is_remote,
5515 "received buffer update from {:?}",
5516 envelope.original_sender_id
5517 );
5518 e.insert(OpenBuffer::Operations(ops));
5519 }
5520 }
5521 Ok(proto::Ack {})
5522 })
5523 }
5524
5525 async fn handle_create_buffer_for_peer(
5526 this: ModelHandle<Self>,
5527 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
5528 _: Arc<Client>,
5529 mut cx: AsyncAppContext,
5530 ) -> Result<()> {
5531 this.update(&mut cx, |this, cx| {
5532 match envelope
5533 .payload
5534 .variant
5535 .ok_or_else(|| anyhow!("missing variant"))?
5536 {
5537 proto::create_buffer_for_peer::Variant::State(mut state) => {
5538 let mut buffer_file = None;
5539 if let Some(file) = state.file.take() {
5540 let worktree_id = WorktreeId::from_proto(file.worktree_id);
5541 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
5542 anyhow!("no worktree found for id {}", file.worktree_id)
5543 })?;
5544 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
5545 as Arc<dyn language::File>);
5546 }
5547
5548 let buffer_id = state.id;
5549 let buffer = cx.add_model(|_| {
5550 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
5551 });
5552 this.incomplete_remote_buffers
5553 .insert(buffer_id, Some(buffer));
5554 }
5555 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
5556 let buffer = this
5557 .incomplete_remote_buffers
5558 .get(&chunk.buffer_id)
5559 .cloned()
5560 .flatten()
5561 .ok_or_else(|| {
5562 anyhow!(
5563 "received chunk for buffer {} without initial state",
5564 chunk.buffer_id
5565 )
5566 })?;
5567 let operations = chunk
5568 .operations
5569 .into_iter()
5570 .map(language::proto::deserialize_operation)
5571 .collect::<Result<Vec<_>>>()?;
5572 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
5573
5574 if chunk.is_last {
5575 this.incomplete_remote_buffers.remove(&chunk.buffer_id);
5576 this.register_buffer(&buffer, cx)?;
5577 }
5578 }
5579 }
5580
5581 Ok(())
5582 })
5583 }
5584
5585 async fn handle_update_diff_base(
5586 this: ModelHandle<Self>,
5587 envelope: TypedEnvelope<proto::UpdateDiffBase>,
5588 _: Arc<Client>,
5589 mut cx: AsyncAppContext,
5590 ) -> Result<()> {
5591 this.update(&mut cx, |this, cx| {
5592 let buffer_id = envelope.payload.buffer_id;
5593 let diff_base = envelope.payload.diff_base;
5594 if let Some(buffer) = this
5595 .opened_buffers
5596 .get_mut(&buffer_id)
5597 .and_then(|b| b.upgrade(cx))
5598 .or_else(|| {
5599 this.incomplete_remote_buffers
5600 .get(&buffer_id)
5601 .cloned()
5602 .flatten()
5603 })
5604 {
5605 buffer.update(cx, |buffer, cx| buffer.set_diff_base(diff_base, cx));
5606 }
5607 Ok(())
5608 })
5609 }
5610
5611 async fn handle_update_buffer_file(
5612 this: ModelHandle<Self>,
5613 envelope: TypedEnvelope<proto::UpdateBufferFile>,
5614 _: Arc<Client>,
5615 mut cx: AsyncAppContext,
5616 ) -> Result<()> {
5617 let buffer_id = envelope.payload.buffer_id;
5618
5619 this.update(&mut cx, |this, cx| {
5620 let payload = envelope.payload.clone();
5621 if let Some(buffer) = this
5622 .opened_buffers
5623 .get(&buffer_id)
5624 .and_then(|b| b.upgrade(cx))
5625 .or_else(|| {
5626 this.incomplete_remote_buffers
5627 .get(&buffer_id)
5628 .cloned()
5629 .flatten()
5630 })
5631 {
5632 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
5633 let worktree = this
5634 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
5635 .ok_or_else(|| anyhow!("no such worktree"))?;
5636 let file = File::from_proto(file, worktree, cx)?;
5637 buffer.update(cx, |buffer, cx| {
5638 buffer.file_updated(Arc::new(file), cx).detach();
5639 });
5640 this.detect_language_for_buffer(&buffer, cx);
5641 }
5642 Ok(())
5643 })
5644 }
5645
5646 async fn handle_save_buffer(
5647 this: ModelHandle<Self>,
5648 envelope: TypedEnvelope<proto::SaveBuffer>,
5649 _: Arc<Client>,
5650 mut cx: AsyncAppContext,
5651 ) -> Result<proto::BufferSaved> {
5652 let buffer_id = envelope.payload.buffer_id;
5653 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
5654 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
5655 let buffer = this
5656 .opened_buffers
5657 .get(&buffer_id)
5658 .and_then(|buffer| buffer.upgrade(cx))
5659 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
5660 anyhow::Ok((project_id, buffer))
5661 })?;
5662 buffer
5663 .update(&mut cx, |buffer, _| {
5664 buffer.wait_for_version(deserialize_version(&envelope.payload.version))
5665 })
5666 .await?;
5667 let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
5668
5669 let (saved_version, fingerprint, mtime) = this
5670 .update(&mut cx, |this, cx| this.save_buffer(buffer, cx))
5671 .await?;
5672 Ok(proto::BufferSaved {
5673 project_id,
5674 buffer_id,
5675 version: serialize_version(&saved_version),
5676 mtime: Some(mtime.into()),
5677 fingerprint: language::proto::serialize_fingerprint(fingerprint),
5678 })
5679 }
5680
5681 async fn handle_reload_buffers(
5682 this: ModelHandle<Self>,
5683 envelope: TypedEnvelope<proto::ReloadBuffers>,
5684 _: Arc<Client>,
5685 mut cx: AsyncAppContext,
5686 ) -> Result<proto::ReloadBuffersResponse> {
5687 let sender_id = envelope.original_sender_id()?;
5688 let reload = this.update(&mut cx, |this, cx| {
5689 let mut buffers = HashSet::default();
5690 for buffer_id in &envelope.payload.buffer_ids {
5691 buffers.insert(
5692 this.opened_buffers
5693 .get(buffer_id)
5694 .and_then(|buffer| buffer.upgrade(cx))
5695 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5696 );
5697 }
5698 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
5699 })?;
5700
5701 let project_transaction = reload.await?;
5702 let project_transaction = this.update(&mut cx, |this, cx| {
5703 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5704 });
5705 Ok(proto::ReloadBuffersResponse {
5706 transaction: Some(project_transaction),
5707 })
5708 }
5709
5710 async fn handle_synchronize_buffers(
5711 this: ModelHandle<Self>,
5712 envelope: TypedEnvelope<proto::SynchronizeBuffers>,
5713 _: Arc<Client>,
5714 mut cx: AsyncAppContext,
5715 ) -> Result<proto::SynchronizeBuffersResponse> {
5716 let project_id = envelope.payload.project_id;
5717 let mut response = proto::SynchronizeBuffersResponse {
5718 buffers: Default::default(),
5719 };
5720
5721 this.update(&mut cx, |this, cx| {
5722 let Some(guest_id) = envelope.original_sender_id else {
5723 log::error!("missing original_sender_id on SynchronizeBuffers request");
5724 return;
5725 };
5726
5727 this.shared_buffers.entry(guest_id).or_default().clear();
5728 for buffer in envelope.payload.buffers {
5729 let buffer_id = buffer.id;
5730 let remote_version = language::proto::deserialize_version(&buffer.version);
5731 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
5732 this.shared_buffers
5733 .entry(guest_id)
5734 .or_default()
5735 .insert(buffer_id);
5736
5737 let buffer = buffer.read(cx);
5738 response.buffers.push(proto::BufferVersion {
5739 id: buffer_id,
5740 version: language::proto::serialize_version(&buffer.version),
5741 });
5742
5743 let operations = buffer.serialize_ops(Some(remote_version), cx);
5744 let client = this.client.clone();
5745 if let Some(file) = buffer.file() {
5746 client
5747 .send(proto::UpdateBufferFile {
5748 project_id,
5749 buffer_id: buffer_id as u64,
5750 file: Some(file.to_proto()),
5751 })
5752 .log_err();
5753 }
5754
5755 client
5756 .send(proto::UpdateDiffBase {
5757 project_id,
5758 buffer_id: buffer_id as u64,
5759 diff_base: buffer.diff_base().map(Into::into),
5760 })
5761 .log_err();
5762
5763 client
5764 .send(proto::BufferReloaded {
5765 project_id,
5766 buffer_id,
5767 version: language::proto::serialize_version(buffer.saved_version()),
5768 mtime: Some(buffer.saved_mtime().into()),
5769 fingerprint: language::proto::serialize_fingerprint(
5770 buffer.saved_version_fingerprint(),
5771 ),
5772 line_ending: language::proto::serialize_line_ending(
5773 buffer.line_ending(),
5774 ) as i32,
5775 })
5776 .log_err();
5777
5778 cx.background()
5779 .spawn(
5780 async move {
5781 let operations = operations.await;
5782 for chunk in split_operations(operations) {
5783 client
5784 .request(proto::UpdateBuffer {
5785 project_id,
5786 buffer_id,
5787 operations: chunk,
5788 })
5789 .await?;
5790 }
5791 anyhow::Ok(())
5792 }
5793 .log_err(),
5794 )
5795 .detach();
5796 }
5797 }
5798 });
5799
5800 Ok(response)
5801 }
5802
5803 async fn handle_format_buffers(
5804 this: ModelHandle<Self>,
5805 envelope: TypedEnvelope<proto::FormatBuffers>,
5806 _: Arc<Client>,
5807 mut cx: AsyncAppContext,
5808 ) -> Result<proto::FormatBuffersResponse> {
5809 let sender_id = envelope.original_sender_id()?;
5810 let format = this.update(&mut cx, |this, cx| {
5811 let mut buffers = HashSet::default();
5812 for buffer_id in &envelope.payload.buffer_ids {
5813 buffers.insert(
5814 this.opened_buffers
5815 .get(buffer_id)
5816 .and_then(|buffer| buffer.upgrade(cx))
5817 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5818 );
5819 }
5820 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
5821 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
5822 })?;
5823
5824 let project_transaction = format.await?;
5825 let project_transaction = this.update(&mut cx, |this, cx| {
5826 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5827 });
5828 Ok(proto::FormatBuffersResponse {
5829 transaction: Some(project_transaction),
5830 })
5831 }
5832
5833 async fn handle_apply_additional_edits_for_completion(
5834 this: ModelHandle<Self>,
5835 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
5836 _: Arc<Client>,
5837 mut cx: AsyncAppContext,
5838 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
5839 let (buffer, completion) = this.update(&mut cx, |this, cx| {
5840 let buffer = this
5841 .opened_buffers
5842 .get(&envelope.payload.buffer_id)
5843 .and_then(|buffer| buffer.upgrade(cx))
5844 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5845 let language = buffer.read(cx).language();
5846 let completion = language::proto::deserialize_completion(
5847 envelope
5848 .payload
5849 .completion
5850 .ok_or_else(|| anyhow!("invalid completion"))?,
5851 language.cloned(),
5852 );
5853 Ok::<_, anyhow::Error>((buffer, completion))
5854 })?;
5855
5856 let completion = completion.await?;
5857
5858 let apply_additional_edits = this.update(&mut cx, |this, cx| {
5859 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
5860 });
5861
5862 Ok(proto::ApplyCompletionAdditionalEditsResponse {
5863 transaction: apply_additional_edits
5864 .await?
5865 .as_ref()
5866 .map(language::proto::serialize_transaction),
5867 })
5868 }
5869
5870 async fn handle_apply_code_action(
5871 this: ModelHandle<Self>,
5872 envelope: TypedEnvelope<proto::ApplyCodeAction>,
5873 _: Arc<Client>,
5874 mut cx: AsyncAppContext,
5875 ) -> Result<proto::ApplyCodeActionResponse> {
5876 let sender_id = envelope.original_sender_id()?;
5877 let action = language::proto::deserialize_code_action(
5878 envelope
5879 .payload
5880 .action
5881 .ok_or_else(|| anyhow!("invalid action"))?,
5882 )?;
5883 let apply_code_action = this.update(&mut cx, |this, cx| {
5884 let buffer = this
5885 .opened_buffers
5886 .get(&envelope.payload.buffer_id)
5887 .and_then(|buffer| buffer.upgrade(cx))
5888 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5889 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
5890 })?;
5891
5892 let project_transaction = apply_code_action.await?;
5893 let project_transaction = this.update(&mut cx, |this, cx| {
5894 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5895 });
5896 Ok(proto::ApplyCodeActionResponse {
5897 transaction: Some(project_transaction),
5898 })
5899 }
5900
5901 async fn handle_on_type_formatting(
5902 this: ModelHandle<Self>,
5903 envelope: TypedEnvelope<proto::OnTypeFormatting>,
5904 _: Arc<Client>,
5905 mut cx: AsyncAppContext,
5906 ) -> Result<proto::OnTypeFormattingResponse> {
5907 let on_type_formatting = this.update(&mut cx, |this, cx| {
5908 let buffer = this
5909 .opened_buffers
5910 .get(&envelope.payload.buffer_id)
5911 .and_then(|buffer| buffer.upgrade(cx))
5912 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5913 let position = envelope
5914 .payload
5915 .position
5916 .and_then(deserialize_anchor)
5917 .ok_or_else(|| anyhow!("invalid position"))?;
5918 Ok::<_, anyhow::Error>(this.apply_on_type_formatting(
5919 buffer,
5920 position,
5921 envelope.payload.trigger.clone(),
5922 cx,
5923 ))
5924 })?;
5925
5926 let transaction = on_type_formatting
5927 .await?
5928 .as_ref()
5929 .map(language::proto::serialize_transaction);
5930 Ok(proto::OnTypeFormattingResponse { transaction })
5931 }
5932
5933 async fn handle_lsp_command<T: LspCommand>(
5934 this: ModelHandle<Self>,
5935 envelope: TypedEnvelope<T::ProtoRequest>,
5936 _: Arc<Client>,
5937 mut cx: AsyncAppContext,
5938 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
5939 where
5940 <T::LspRequest as lsp::request::Request>::Result: Send,
5941 {
5942 let sender_id = envelope.original_sender_id()?;
5943 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
5944 let buffer_handle = this.read_with(&cx, |this, _| {
5945 this.opened_buffers
5946 .get(&buffer_id)
5947 .and_then(|buffer| buffer.upgrade(&cx))
5948 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
5949 })?;
5950 let request = T::from_proto(
5951 envelope.payload,
5952 this.clone(),
5953 buffer_handle.clone(),
5954 cx.clone(),
5955 )
5956 .await?;
5957 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
5958 let response = this
5959 .update(&mut cx, |this, cx| {
5960 this.request_lsp(buffer_handle, request, cx)
5961 })
5962 .await?;
5963 this.update(&mut cx, |this, cx| {
5964 Ok(T::response_to_proto(
5965 response,
5966 this,
5967 sender_id,
5968 &buffer_version,
5969 cx,
5970 ))
5971 })
5972 }
5973
5974 async fn handle_get_project_symbols(
5975 this: ModelHandle<Self>,
5976 envelope: TypedEnvelope<proto::GetProjectSymbols>,
5977 _: Arc<Client>,
5978 mut cx: AsyncAppContext,
5979 ) -> Result<proto::GetProjectSymbolsResponse> {
5980 let symbols = this
5981 .update(&mut cx, |this, cx| {
5982 this.symbols(&envelope.payload.query, cx)
5983 })
5984 .await?;
5985
5986 Ok(proto::GetProjectSymbolsResponse {
5987 symbols: symbols.iter().map(serialize_symbol).collect(),
5988 })
5989 }
5990
5991 async fn handle_search_project(
5992 this: ModelHandle<Self>,
5993 envelope: TypedEnvelope<proto::SearchProject>,
5994 _: Arc<Client>,
5995 mut cx: AsyncAppContext,
5996 ) -> Result<proto::SearchProjectResponse> {
5997 let peer_id = envelope.original_sender_id()?;
5998 let query = SearchQuery::from_proto(envelope.payload)?;
5999 let result = this
6000 .update(&mut cx, |this, cx| this.search(query, cx))
6001 .await?;
6002
6003 this.update(&mut cx, |this, cx| {
6004 let mut locations = Vec::new();
6005 for (buffer, ranges) in result {
6006 for range in ranges {
6007 let start = serialize_anchor(&range.start);
6008 let end = serialize_anchor(&range.end);
6009 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
6010 locations.push(proto::Location {
6011 buffer_id,
6012 start: Some(start),
6013 end: Some(end),
6014 });
6015 }
6016 }
6017 Ok(proto::SearchProjectResponse { locations })
6018 })
6019 }
6020
6021 async fn handle_open_buffer_for_symbol(
6022 this: ModelHandle<Self>,
6023 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
6024 _: Arc<Client>,
6025 mut cx: AsyncAppContext,
6026 ) -> Result<proto::OpenBufferForSymbolResponse> {
6027 let peer_id = envelope.original_sender_id()?;
6028 let symbol = envelope
6029 .payload
6030 .symbol
6031 .ok_or_else(|| anyhow!("invalid symbol"))?;
6032 let symbol = this
6033 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
6034 .await?;
6035 let symbol = this.read_with(&cx, |this, _| {
6036 let signature = this.symbol_signature(&symbol.path);
6037 if signature == symbol.signature {
6038 Ok(symbol)
6039 } else {
6040 Err(anyhow!("invalid symbol signature"))
6041 }
6042 })?;
6043 let buffer = this
6044 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
6045 .await?;
6046
6047 Ok(proto::OpenBufferForSymbolResponse {
6048 buffer_id: this.update(&mut cx, |this, cx| {
6049 this.create_buffer_for_peer(&buffer, peer_id, cx)
6050 }),
6051 })
6052 }
6053
6054 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
6055 let mut hasher = Sha256::new();
6056 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
6057 hasher.update(project_path.path.to_string_lossy().as_bytes());
6058 hasher.update(self.nonce.to_be_bytes());
6059 hasher.finalize().as_slice().try_into().unwrap()
6060 }
6061
6062 async fn handle_open_buffer_by_id(
6063 this: ModelHandle<Self>,
6064 envelope: TypedEnvelope<proto::OpenBufferById>,
6065 _: Arc<Client>,
6066 mut cx: AsyncAppContext,
6067 ) -> Result<proto::OpenBufferResponse> {
6068 let peer_id = envelope.original_sender_id()?;
6069 let buffer = this
6070 .update(&mut cx, |this, cx| {
6071 this.open_buffer_by_id(envelope.payload.id, cx)
6072 })
6073 .await?;
6074 this.update(&mut cx, |this, cx| {
6075 Ok(proto::OpenBufferResponse {
6076 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
6077 })
6078 })
6079 }
6080
6081 async fn handle_open_buffer_by_path(
6082 this: ModelHandle<Self>,
6083 envelope: TypedEnvelope<proto::OpenBufferByPath>,
6084 _: Arc<Client>,
6085 mut cx: AsyncAppContext,
6086 ) -> Result<proto::OpenBufferResponse> {
6087 let peer_id = envelope.original_sender_id()?;
6088 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
6089 let open_buffer = this.update(&mut cx, |this, cx| {
6090 this.open_buffer(
6091 ProjectPath {
6092 worktree_id,
6093 path: PathBuf::from(envelope.payload.path).into(),
6094 },
6095 cx,
6096 )
6097 });
6098
6099 let buffer = open_buffer.await?;
6100 this.update(&mut cx, |this, cx| {
6101 Ok(proto::OpenBufferResponse {
6102 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
6103 })
6104 })
6105 }
6106
6107 fn serialize_project_transaction_for_peer(
6108 &mut self,
6109 project_transaction: ProjectTransaction,
6110 peer_id: proto::PeerId,
6111 cx: &mut AppContext,
6112 ) -> proto::ProjectTransaction {
6113 let mut serialized_transaction = proto::ProjectTransaction {
6114 buffer_ids: Default::default(),
6115 transactions: Default::default(),
6116 };
6117 for (buffer, transaction) in project_transaction.0 {
6118 serialized_transaction
6119 .buffer_ids
6120 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
6121 serialized_transaction
6122 .transactions
6123 .push(language::proto::serialize_transaction(&transaction));
6124 }
6125 serialized_transaction
6126 }
6127
6128 fn deserialize_project_transaction(
6129 &mut self,
6130 message: proto::ProjectTransaction,
6131 push_to_history: bool,
6132 cx: &mut ModelContext<Self>,
6133 ) -> Task<Result<ProjectTransaction>> {
6134 cx.spawn(|this, mut cx| async move {
6135 let mut project_transaction = ProjectTransaction::default();
6136 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
6137 {
6138 let buffer = this
6139 .update(&mut cx, |this, cx| {
6140 this.wait_for_remote_buffer(buffer_id, cx)
6141 })
6142 .await?;
6143 let transaction = language::proto::deserialize_transaction(transaction)?;
6144 project_transaction.0.insert(buffer, transaction);
6145 }
6146
6147 for (buffer, transaction) in &project_transaction.0 {
6148 buffer
6149 .update(&mut cx, |buffer, _| {
6150 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
6151 })
6152 .await?;
6153
6154 if push_to_history {
6155 buffer.update(&mut cx, |buffer, _| {
6156 buffer.push_transaction(transaction.clone(), Instant::now());
6157 });
6158 }
6159 }
6160
6161 Ok(project_transaction)
6162 })
6163 }
6164
6165 fn create_buffer_for_peer(
6166 &mut self,
6167 buffer: &ModelHandle<Buffer>,
6168 peer_id: proto::PeerId,
6169 cx: &mut AppContext,
6170 ) -> u64 {
6171 let buffer_id = buffer.read(cx).remote_id();
6172 if let Some(ProjectClientState::Local { updates_tx, .. }) = &self.client_state {
6173 updates_tx
6174 .unbounded_send(LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id })
6175 .ok();
6176 }
6177 buffer_id
6178 }
6179
6180 fn wait_for_remote_buffer(
6181 &mut self,
6182 id: u64,
6183 cx: &mut ModelContext<Self>,
6184 ) -> Task<Result<ModelHandle<Buffer>>> {
6185 let mut opened_buffer_rx = self.opened_buffer.1.clone();
6186
6187 cx.spawn_weak(|this, mut cx| async move {
6188 let buffer = loop {
6189 let Some(this) = this.upgrade(&cx) else {
6190 return Err(anyhow!("project dropped"));
6191 };
6192 let buffer = this.read_with(&cx, |this, cx| {
6193 this.opened_buffers
6194 .get(&id)
6195 .and_then(|buffer| buffer.upgrade(cx))
6196 });
6197 if let Some(buffer) = buffer {
6198 break buffer;
6199 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
6200 return Err(anyhow!("disconnected before buffer {} could be opened", id));
6201 }
6202
6203 this.update(&mut cx, |this, _| {
6204 this.incomplete_remote_buffers.entry(id).or_default();
6205 });
6206 drop(this);
6207 opened_buffer_rx
6208 .next()
6209 .await
6210 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
6211 };
6212 buffer.update(&mut cx, |buffer, cx| buffer.git_diff_recalc(cx));
6213 Ok(buffer)
6214 })
6215 }
6216
6217 fn synchronize_remote_buffers(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
6218 let project_id = match self.client_state.as_ref() {
6219 Some(ProjectClientState::Remote {
6220 sharing_has_stopped,
6221 remote_id,
6222 ..
6223 }) => {
6224 if *sharing_has_stopped {
6225 return Task::ready(Err(anyhow!(
6226 "can't synchronize remote buffers on a readonly project"
6227 )));
6228 } else {
6229 *remote_id
6230 }
6231 }
6232 Some(ProjectClientState::Local { .. }) | None => {
6233 return Task::ready(Err(anyhow!(
6234 "can't synchronize remote buffers on a local project"
6235 )))
6236 }
6237 };
6238
6239 let client = self.client.clone();
6240 cx.spawn(|this, cx| async move {
6241 let (buffers, incomplete_buffer_ids) = this.read_with(&cx, |this, cx| {
6242 let buffers = this
6243 .opened_buffers
6244 .iter()
6245 .filter_map(|(id, buffer)| {
6246 let buffer = buffer.upgrade(cx)?;
6247 Some(proto::BufferVersion {
6248 id: *id,
6249 version: language::proto::serialize_version(&buffer.read(cx).version),
6250 })
6251 })
6252 .collect();
6253 let incomplete_buffer_ids = this
6254 .incomplete_remote_buffers
6255 .keys()
6256 .copied()
6257 .collect::<Vec<_>>();
6258
6259 (buffers, incomplete_buffer_ids)
6260 });
6261 let response = client
6262 .request(proto::SynchronizeBuffers {
6263 project_id,
6264 buffers,
6265 })
6266 .await?;
6267
6268 let send_updates_for_buffers = response.buffers.into_iter().map(|buffer| {
6269 let client = client.clone();
6270 let buffer_id = buffer.id;
6271 let remote_version = language::proto::deserialize_version(&buffer.version);
6272 this.read_with(&cx, |this, cx| {
6273 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
6274 let operations = buffer.read(cx).serialize_ops(Some(remote_version), cx);
6275 cx.background().spawn(async move {
6276 let operations = operations.await;
6277 for chunk in split_operations(operations) {
6278 client
6279 .request(proto::UpdateBuffer {
6280 project_id,
6281 buffer_id,
6282 operations: chunk,
6283 })
6284 .await?;
6285 }
6286 anyhow::Ok(())
6287 })
6288 } else {
6289 Task::ready(Ok(()))
6290 }
6291 })
6292 });
6293
6294 // Any incomplete buffers have open requests waiting. Request that the host sends
6295 // creates these buffers for us again to unblock any waiting futures.
6296 for id in incomplete_buffer_ids {
6297 cx.background()
6298 .spawn(client.request(proto::OpenBufferById { project_id, id }))
6299 .detach();
6300 }
6301
6302 futures::future::join_all(send_updates_for_buffers)
6303 .await
6304 .into_iter()
6305 .collect()
6306 })
6307 }
6308
6309 pub fn worktree_metadata_protos(&self, cx: &AppContext) -> Vec<proto::WorktreeMetadata> {
6310 self.worktrees(cx)
6311 .map(|worktree| {
6312 let worktree = worktree.read(cx);
6313 proto::WorktreeMetadata {
6314 id: worktree.id().to_proto(),
6315 root_name: worktree.root_name().into(),
6316 visible: worktree.is_visible(),
6317 abs_path: worktree.abs_path().to_string_lossy().into(),
6318 }
6319 })
6320 .collect()
6321 }
6322
6323 fn set_worktrees_from_proto(
6324 &mut self,
6325 worktrees: Vec<proto::WorktreeMetadata>,
6326 cx: &mut ModelContext<Project>,
6327 ) -> Result<()> {
6328 let replica_id = self.replica_id();
6329 let remote_id = self.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
6330
6331 let mut old_worktrees_by_id = self
6332 .worktrees
6333 .drain(..)
6334 .filter_map(|worktree| {
6335 let worktree = worktree.upgrade(cx)?;
6336 Some((worktree.read(cx).id(), worktree))
6337 })
6338 .collect::<HashMap<_, _>>();
6339
6340 for worktree in worktrees {
6341 if let Some(old_worktree) =
6342 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
6343 {
6344 self.worktrees.push(WorktreeHandle::Strong(old_worktree));
6345 } else {
6346 let worktree =
6347 Worktree::remote(remote_id, replica_id, worktree, self.client.clone(), cx);
6348 let _ = self.add_worktree(&worktree, cx);
6349 }
6350 }
6351
6352 self.metadata_changed(cx);
6353 for (id, _) in old_worktrees_by_id {
6354 cx.emit(Event::WorktreeRemoved(id));
6355 }
6356
6357 Ok(())
6358 }
6359
6360 fn set_collaborators_from_proto(
6361 &mut self,
6362 messages: Vec<proto::Collaborator>,
6363 cx: &mut ModelContext<Self>,
6364 ) -> Result<()> {
6365 let mut collaborators = HashMap::default();
6366 for message in messages {
6367 let collaborator = Collaborator::from_proto(message)?;
6368 collaborators.insert(collaborator.peer_id, collaborator);
6369 }
6370 for old_peer_id in self.collaborators.keys() {
6371 if !collaborators.contains_key(old_peer_id) {
6372 cx.emit(Event::CollaboratorLeft(*old_peer_id));
6373 }
6374 }
6375 self.collaborators = collaborators;
6376 Ok(())
6377 }
6378
6379 fn deserialize_symbol(
6380 &self,
6381 serialized_symbol: proto::Symbol,
6382 ) -> impl Future<Output = Result<Symbol>> {
6383 let languages = self.languages.clone();
6384 async move {
6385 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
6386 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
6387 let start = serialized_symbol
6388 .start
6389 .ok_or_else(|| anyhow!("invalid start"))?;
6390 let end = serialized_symbol
6391 .end
6392 .ok_or_else(|| anyhow!("invalid end"))?;
6393 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
6394 let path = ProjectPath {
6395 worktree_id,
6396 path: PathBuf::from(serialized_symbol.path).into(),
6397 };
6398 let language = languages
6399 .language_for_file(&path.path, None)
6400 .await
6401 .log_err();
6402 Ok(Symbol {
6403 language_server_name: LanguageServerName(
6404 serialized_symbol.language_server_name.into(),
6405 ),
6406 source_worktree_id,
6407 path,
6408 label: {
6409 match language {
6410 Some(language) => {
6411 language
6412 .label_for_symbol(&serialized_symbol.name, kind)
6413 .await
6414 }
6415 None => None,
6416 }
6417 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
6418 },
6419
6420 name: serialized_symbol.name,
6421 range: Unclipped(PointUtf16::new(start.row, start.column))
6422 ..Unclipped(PointUtf16::new(end.row, end.column)),
6423 kind,
6424 signature: serialized_symbol
6425 .signature
6426 .try_into()
6427 .map_err(|_| anyhow!("invalid signature"))?,
6428 })
6429 }
6430 }
6431
6432 async fn handle_buffer_saved(
6433 this: ModelHandle<Self>,
6434 envelope: TypedEnvelope<proto::BufferSaved>,
6435 _: Arc<Client>,
6436 mut cx: AsyncAppContext,
6437 ) -> Result<()> {
6438 let fingerprint = deserialize_fingerprint(&envelope.payload.fingerprint)?;
6439 let version = deserialize_version(&envelope.payload.version);
6440 let mtime = envelope
6441 .payload
6442 .mtime
6443 .ok_or_else(|| anyhow!("missing mtime"))?
6444 .into();
6445
6446 this.update(&mut cx, |this, cx| {
6447 let buffer = this
6448 .opened_buffers
6449 .get(&envelope.payload.buffer_id)
6450 .and_then(|buffer| buffer.upgrade(cx))
6451 .or_else(|| {
6452 this.incomplete_remote_buffers
6453 .get(&envelope.payload.buffer_id)
6454 .and_then(|b| b.clone())
6455 });
6456 if let Some(buffer) = buffer {
6457 buffer.update(cx, |buffer, cx| {
6458 buffer.did_save(version, fingerprint, mtime, cx);
6459 });
6460 }
6461 Ok(())
6462 })
6463 }
6464
6465 async fn handle_buffer_reloaded(
6466 this: ModelHandle<Self>,
6467 envelope: TypedEnvelope<proto::BufferReloaded>,
6468 _: Arc<Client>,
6469 mut cx: AsyncAppContext,
6470 ) -> Result<()> {
6471 let payload = envelope.payload;
6472 let version = deserialize_version(&payload.version);
6473 let fingerprint = deserialize_fingerprint(&payload.fingerprint)?;
6474 let line_ending = deserialize_line_ending(
6475 proto::LineEnding::from_i32(payload.line_ending)
6476 .ok_or_else(|| anyhow!("missing line ending"))?,
6477 );
6478 let mtime = payload
6479 .mtime
6480 .ok_or_else(|| anyhow!("missing mtime"))?
6481 .into();
6482 this.update(&mut cx, |this, cx| {
6483 let buffer = this
6484 .opened_buffers
6485 .get(&payload.buffer_id)
6486 .and_then(|buffer| buffer.upgrade(cx))
6487 .or_else(|| {
6488 this.incomplete_remote_buffers
6489 .get(&payload.buffer_id)
6490 .cloned()
6491 .flatten()
6492 });
6493 if let Some(buffer) = buffer {
6494 buffer.update(cx, |buffer, cx| {
6495 buffer.did_reload(version, fingerprint, line_ending, mtime, cx);
6496 });
6497 }
6498 Ok(())
6499 })
6500 }
6501
6502 #[allow(clippy::type_complexity)]
6503 fn edits_from_lsp(
6504 &mut self,
6505 buffer: &ModelHandle<Buffer>,
6506 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
6507 server_id: LanguageServerId,
6508 version: Option<i32>,
6509 cx: &mut ModelContext<Self>,
6510 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
6511 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx);
6512 cx.background().spawn(async move {
6513 let snapshot = snapshot?;
6514 let mut lsp_edits = lsp_edits
6515 .into_iter()
6516 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
6517 .collect::<Vec<_>>();
6518 lsp_edits.sort_by_key(|(range, _)| range.start);
6519
6520 let mut lsp_edits = lsp_edits.into_iter().peekable();
6521 let mut edits = Vec::new();
6522 while let Some((range, mut new_text)) = lsp_edits.next() {
6523 // Clip invalid ranges provided by the language server.
6524 let mut range = snapshot.clip_point_utf16(range.start, Bias::Left)
6525 ..snapshot.clip_point_utf16(range.end, Bias::Left);
6526
6527 // Combine any LSP edits that are adjacent.
6528 //
6529 // Also, combine LSP edits that are separated from each other by only
6530 // a newline. This is important because for some code actions,
6531 // Rust-analyzer rewrites the entire buffer via a series of edits that
6532 // are separated by unchanged newline characters.
6533 //
6534 // In order for the diffing logic below to work properly, any edits that
6535 // cancel each other out must be combined into one.
6536 while let Some((next_range, next_text)) = lsp_edits.peek() {
6537 if next_range.start.0 > range.end {
6538 if next_range.start.0.row > range.end.row + 1
6539 || next_range.start.0.column > 0
6540 || snapshot.clip_point_utf16(
6541 Unclipped(PointUtf16::new(range.end.row, u32::MAX)),
6542 Bias::Left,
6543 ) > range.end
6544 {
6545 break;
6546 }
6547 new_text.push('\n');
6548 }
6549 range.end = snapshot.clip_point_utf16(next_range.end, Bias::Left);
6550 new_text.push_str(next_text);
6551 lsp_edits.next();
6552 }
6553
6554 // For multiline edits, perform a diff of the old and new text so that
6555 // we can identify the changes more precisely, preserving the locations
6556 // of any anchors positioned in the unchanged regions.
6557 if range.end.row > range.start.row {
6558 let mut offset = range.start.to_offset(&snapshot);
6559 let old_text = snapshot.text_for_range(range).collect::<String>();
6560
6561 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
6562 let mut moved_since_edit = true;
6563 for change in diff.iter_all_changes() {
6564 let tag = change.tag();
6565 let value = change.value();
6566 match tag {
6567 ChangeTag::Equal => {
6568 offset += value.len();
6569 moved_since_edit = true;
6570 }
6571 ChangeTag::Delete => {
6572 let start = snapshot.anchor_after(offset);
6573 let end = snapshot.anchor_before(offset + value.len());
6574 if moved_since_edit {
6575 edits.push((start..end, String::new()));
6576 } else {
6577 edits.last_mut().unwrap().0.end = end;
6578 }
6579 offset += value.len();
6580 moved_since_edit = false;
6581 }
6582 ChangeTag::Insert => {
6583 if moved_since_edit {
6584 let anchor = snapshot.anchor_after(offset);
6585 edits.push((anchor..anchor, value.to_string()));
6586 } else {
6587 edits.last_mut().unwrap().1.push_str(value);
6588 }
6589 moved_since_edit = false;
6590 }
6591 }
6592 }
6593 } else if range.end == range.start {
6594 let anchor = snapshot.anchor_after(range.start);
6595 edits.push((anchor..anchor, new_text));
6596 } else {
6597 let edit_start = snapshot.anchor_after(range.start);
6598 let edit_end = snapshot.anchor_before(range.end);
6599 edits.push((edit_start..edit_end, new_text));
6600 }
6601 }
6602
6603 Ok(edits)
6604 })
6605 }
6606
6607 fn buffer_snapshot_for_lsp_version(
6608 &mut self,
6609 buffer: &ModelHandle<Buffer>,
6610 server_id: LanguageServerId,
6611 version: Option<i32>,
6612 cx: &AppContext,
6613 ) -> Result<TextBufferSnapshot> {
6614 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
6615
6616 if let Some(version) = version {
6617 let buffer_id = buffer.read(cx).remote_id();
6618 let snapshots = self
6619 .buffer_snapshots
6620 .get_mut(&buffer_id)
6621 .and_then(|m| m.get_mut(&server_id))
6622 .ok_or_else(|| {
6623 anyhow!("no snapshots found for buffer {buffer_id} and server {server_id}")
6624 })?;
6625
6626 let found_snapshot = snapshots
6627 .binary_search_by_key(&version, |e| e.version)
6628 .map(|ix| snapshots[ix].snapshot.clone())
6629 .map_err(|_| {
6630 anyhow!("snapshot not found for buffer {buffer_id} server {server_id} at version {version}")
6631 })?;
6632
6633 snapshots.retain(|snapshot| snapshot.version + OLD_VERSIONS_TO_RETAIN >= version);
6634 Ok(found_snapshot)
6635 } else {
6636 Ok((buffer.read(cx)).text_snapshot())
6637 }
6638 }
6639
6640 pub fn language_servers(
6641 &self,
6642 ) -> impl '_ + Iterator<Item = (LanguageServerId, LanguageServerName, WorktreeId)> {
6643 self.language_server_ids
6644 .iter()
6645 .map(|((worktree_id, server_name), server_id)| {
6646 (*server_id, server_name.clone(), *worktree_id)
6647 })
6648 }
6649
6650 pub fn language_server_for_id(&self, id: LanguageServerId) -> Option<Arc<LanguageServer>> {
6651 if let LanguageServerState::Running { server, .. } = self.language_servers.get(&id)? {
6652 Some(server.clone())
6653 } else {
6654 None
6655 }
6656 }
6657
6658 pub fn language_servers_for_buffer(
6659 &self,
6660 buffer: &Buffer,
6661 cx: &AppContext,
6662 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6663 self.language_server_ids_for_buffer(buffer, cx)
6664 .into_iter()
6665 .filter_map(|server_id| {
6666 let server = self.language_servers.get(&server_id)?;
6667 if let LanguageServerState::Running {
6668 adapter, server, ..
6669 } = server
6670 {
6671 Some((adapter, server))
6672 } else {
6673 None
6674 }
6675 })
6676 }
6677
6678 fn primary_language_servers_for_buffer(
6679 &self,
6680 buffer: &Buffer,
6681 cx: &AppContext,
6682 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6683 self.language_servers_for_buffer(buffer, cx).next()
6684 }
6685
6686 fn language_server_for_buffer(
6687 &self,
6688 buffer: &Buffer,
6689 server_id: LanguageServerId,
6690 cx: &AppContext,
6691 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6692 self.language_servers_for_buffer(buffer, cx)
6693 .find(|(_, s)| s.server_id() == server_id)
6694 }
6695
6696 fn language_server_ids_for_buffer(
6697 &self,
6698 buffer: &Buffer,
6699 cx: &AppContext,
6700 ) -> Vec<LanguageServerId> {
6701 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
6702 let worktree_id = file.worktree_id(cx);
6703 language
6704 .lsp_adapters()
6705 .iter()
6706 .flat_map(|adapter| {
6707 let key = (worktree_id, adapter.name.clone());
6708 self.language_server_ids.get(&key).copied()
6709 })
6710 .collect()
6711 } else {
6712 Vec::new()
6713 }
6714 }
6715}
6716
6717impl WorktreeHandle {
6718 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
6719 match self {
6720 WorktreeHandle::Strong(handle) => Some(handle.clone()),
6721 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
6722 }
6723 }
6724}
6725
6726impl OpenBuffer {
6727 pub fn upgrade(&self, cx: &impl BorrowAppContext) -> Option<ModelHandle<Buffer>> {
6728 match self {
6729 OpenBuffer::Strong(handle) => Some(handle.clone()),
6730 OpenBuffer::Weak(handle) => handle.upgrade(cx),
6731 OpenBuffer::Operations(_) => None,
6732 }
6733 }
6734}
6735
6736pub struct PathMatchCandidateSet {
6737 pub snapshot: Snapshot,
6738 pub include_ignored: bool,
6739 pub include_root_name: bool,
6740}
6741
6742impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
6743 type Candidates = PathMatchCandidateSetIter<'a>;
6744
6745 fn id(&self) -> usize {
6746 self.snapshot.id().to_usize()
6747 }
6748
6749 fn len(&self) -> usize {
6750 if self.include_ignored {
6751 self.snapshot.file_count()
6752 } else {
6753 self.snapshot.visible_file_count()
6754 }
6755 }
6756
6757 fn prefix(&self) -> Arc<str> {
6758 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
6759 self.snapshot.root_name().into()
6760 } else if self.include_root_name {
6761 format!("{}/", self.snapshot.root_name()).into()
6762 } else {
6763 "".into()
6764 }
6765 }
6766
6767 fn candidates(&'a self, start: usize) -> Self::Candidates {
6768 PathMatchCandidateSetIter {
6769 traversal: self.snapshot.files(self.include_ignored, start),
6770 }
6771 }
6772}
6773
6774pub struct PathMatchCandidateSetIter<'a> {
6775 traversal: Traversal<'a>,
6776}
6777
6778impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
6779 type Item = fuzzy::PathMatchCandidate<'a>;
6780
6781 fn next(&mut self) -> Option<Self::Item> {
6782 self.traversal.next().map(|entry| {
6783 if let EntryKind::File(char_bag) = entry.kind {
6784 fuzzy::PathMatchCandidate {
6785 path: &entry.path,
6786 char_bag,
6787 }
6788 } else {
6789 unreachable!()
6790 }
6791 })
6792 }
6793}
6794
6795impl Entity for Project {
6796 type Event = Event;
6797
6798 fn release(&mut self, cx: &mut gpui::AppContext) {
6799 match &self.client_state {
6800 Some(ProjectClientState::Local { .. }) => {
6801 let _ = self.unshare_internal(cx);
6802 }
6803 Some(ProjectClientState::Remote { remote_id, .. }) => {
6804 let _ = self.client.send(proto::LeaveProject {
6805 project_id: *remote_id,
6806 });
6807 self.disconnected_from_host_internal(cx);
6808 }
6809 _ => {}
6810 }
6811 }
6812
6813 fn app_will_quit(
6814 &mut self,
6815 _: &mut AppContext,
6816 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
6817 let shutdown_futures = self
6818 .language_servers
6819 .drain()
6820 .map(|(_, server_state)| async {
6821 match server_state {
6822 LanguageServerState::Running { server, .. } => server.shutdown()?.await,
6823 LanguageServerState::Starting(starting_server) => {
6824 starting_server.await?.shutdown()?.await
6825 }
6826 }
6827 })
6828 .collect::<Vec<_>>();
6829
6830 Some(
6831 async move {
6832 futures::future::join_all(shutdown_futures).await;
6833 }
6834 .boxed(),
6835 )
6836 }
6837}
6838
6839impl Collaborator {
6840 fn from_proto(message: proto::Collaborator) -> Result<Self> {
6841 Ok(Self {
6842 peer_id: message.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?,
6843 replica_id: message.replica_id as ReplicaId,
6844 })
6845 }
6846}
6847
6848impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
6849 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
6850 Self {
6851 worktree_id,
6852 path: path.as_ref().into(),
6853 }
6854 }
6855}
6856
6857fn split_operations(
6858 mut operations: Vec<proto::Operation>,
6859) -> impl Iterator<Item = Vec<proto::Operation>> {
6860 #[cfg(any(test, feature = "test-support"))]
6861 const CHUNK_SIZE: usize = 5;
6862
6863 #[cfg(not(any(test, feature = "test-support")))]
6864 const CHUNK_SIZE: usize = 100;
6865
6866 let mut done = false;
6867 std::iter::from_fn(move || {
6868 if done {
6869 return None;
6870 }
6871
6872 let operations = operations
6873 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
6874 .collect::<Vec<_>>();
6875 if operations.is_empty() {
6876 done = true;
6877 }
6878 Some(operations)
6879 })
6880}
6881
6882fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
6883 proto::Symbol {
6884 language_server_name: symbol.language_server_name.0.to_string(),
6885 source_worktree_id: symbol.source_worktree_id.to_proto(),
6886 worktree_id: symbol.path.worktree_id.to_proto(),
6887 path: symbol.path.path.to_string_lossy().to_string(),
6888 name: symbol.name.clone(),
6889 kind: unsafe { mem::transmute(symbol.kind) },
6890 start: Some(proto::PointUtf16 {
6891 row: symbol.range.start.0.row,
6892 column: symbol.range.start.0.column,
6893 }),
6894 end: Some(proto::PointUtf16 {
6895 row: symbol.range.end.0.row,
6896 column: symbol.range.end.0.column,
6897 }),
6898 signature: symbol.signature.to_vec(),
6899 }
6900}
6901
6902fn relativize_path(base: &Path, path: &Path) -> PathBuf {
6903 let mut path_components = path.components();
6904 let mut base_components = base.components();
6905 let mut components: Vec<Component> = Vec::new();
6906 loop {
6907 match (path_components.next(), base_components.next()) {
6908 (None, None) => break,
6909 (Some(a), None) => {
6910 components.push(a);
6911 components.extend(path_components.by_ref());
6912 break;
6913 }
6914 (None, _) => components.push(Component::ParentDir),
6915 (Some(a), Some(b)) if components.is_empty() && a == b => (),
6916 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
6917 (Some(a), Some(_)) => {
6918 components.push(Component::ParentDir);
6919 for _ in base_components {
6920 components.push(Component::ParentDir);
6921 }
6922 components.push(a);
6923 components.extend(path_components.by_ref());
6924 break;
6925 }
6926 }
6927 }
6928 components.iter().map(|c| c.as_os_str()).collect()
6929}
6930
6931impl Item for Buffer {
6932 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
6933 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
6934 }
6935
6936 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
6937 File::from_dyn(self.file()).map(|file| ProjectPath {
6938 worktree_id: file.worktree_id(cx),
6939 path: file.path().clone(),
6940 })
6941 }
6942}
6943
6944async fn pump_loading_buffer_reciever(
6945 mut receiver: postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
6946) -> Result<ModelHandle<Buffer>, Arc<anyhow::Error>> {
6947 loop {
6948 if let Some(result) = receiver.borrow().as_ref() {
6949 match result {
6950 Ok(buffer) => return Ok(buffer.to_owned()),
6951 Err(e) => return Err(e.to_owned()),
6952 }
6953 }
6954 receiver.next().await;
6955 }
6956}
6957
6958fn update_diff_base(
6959 project: &Project,
6960) -> impl Fn(Option<String>, ModelHandle<Buffer>, &mut AsyncAppContext) {
6961 let remote_id = project.remote_id();
6962 let client = project.client().clone();
6963 move |diff_base, buffer, cx| {
6964 let buffer_id = buffer.update(cx, |buffer, cx| {
6965 buffer.set_diff_base(diff_base.clone(), cx);
6966 buffer.remote_id()
6967 });
6968
6969 if let Some(project_id) = remote_id {
6970 client
6971 .send(proto::UpdateDiffBase {
6972 project_id,
6973 buffer_id: buffer_id as u64,
6974 diff_base,
6975 })
6976 .log_err();
6977 }
6978 }
6979}