1mod ignore;
2mod lsp_command;
3pub mod 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::{
18 mpsc::{self, UnboundedReceiver},
19 oneshot,
20 },
21 future::{try_join_all, Shared},
22 stream::FuturesUnordered,
23 AsyncWriteExt, Future, FutureExt, StreamExt, TryFutureExt,
24};
25use globset::{Glob, GlobSet, GlobSetBuilder};
26use gpui::{
27 AnyModelHandle, AppContext, AsyncAppContext, BorrowAppContext, Entity, ModelContext,
28 ModelHandle, Task, WeakModelHandle,
29};
30use language::{
31 language_settings::{all_language_settings, language_settings, FormatOnSave, Formatter},
32 point_to_lsp,
33 proto::{
34 deserialize_anchor, deserialize_fingerprint, deserialize_line_ending, deserialize_version,
35 serialize_anchor, serialize_version,
36 },
37 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CachedLspAdapter, CodeAction, CodeLabel,
38 Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Diff, Event as BufferEvent, File as _,
39 Language, LanguageRegistry, LanguageServerName, LocalFile, OffsetRangeExt, Operation, Patch,
40 PendingLanguageServer, PointUtf16, RopeFingerprint, TextBufferSnapshot, ToOffset, ToPointUtf16,
41 Transaction, Unclipped,
42};
43use lsp::{
44 DiagnosticSeverity, DiagnosticTag, DidChangeWatchedFilesRegistrationOptions,
45 DocumentHighlightKind, LanguageServer, LanguageServerId,
46};
47use lsp_command::*;
48use postage::watch;
49use project_settings::ProjectSettings;
50use rand::prelude::*;
51use search::SearchQuery;
52use serde::Serialize;
53use settings::SettingsStore;
54use sha2::{Digest, Sha256};
55use similar::{ChangeTag, TextDiff};
56use std::{
57 cell::RefCell,
58 cmp::{self, Ordering},
59 convert::TryInto,
60 hash::Hash,
61 mem,
62 num::NonZeroU32,
63 ops::Range,
64 path::{Component, Path, PathBuf},
65 rc::Rc,
66 str,
67 sync::{
68 atomic::{AtomicUsize, Ordering::SeqCst},
69 Arc,
70 },
71 time::{Duration, Instant, SystemTime},
72};
73use terminals::Terminals;
74use util::{debug_panic, defer, merge_json_value_into, post_inc, ResultExt, TryFutureExt as _};
75
76pub use fs::*;
77pub use worktree::*;
78
79pub trait Item {
80 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
81 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
82}
83
84// Language server state is stored across 3 collections:
85// language_servers =>
86// a mapping from unique server id to LanguageServerState which can either be a task for a
87// server in the process of starting, or a running server with adapter and language server arcs
88// language_server_ids => a mapping from worktreeId and server name to the unique server id
89// language_server_statuses => a mapping from unique server id to the current server status
90//
91// Multiple worktrees can map to the same language server for example when you jump to the definition
92// of a file in the standard library. So language_server_ids is used to look up which server is active
93// for a given worktree and language server name
94//
95// When starting a language server, first the id map is checked to make sure a server isn't already available
96// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
97// the Starting variant of LanguageServerState is stored in the language_servers map.
98pub struct Project {
99 worktrees: Vec<WorktreeHandle>,
100 active_entry: Option<ProjectEntryId>,
101 buffer_ordered_messages_tx: mpsc::UnboundedSender<BufferOrderedMessage>,
102 languages: Arc<LanguageRegistry>,
103 language_servers: HashMap<LanguageServerId, LanguageServerState>,
104 language_server_ids: HashMap<(WorktreeId, LanguageServerName), LanguageServerId>,
105 language_server_statuses: BTreeMap<LanguageServerId, LanguageServerStatus>,
106 last_workspace_edits_by_language_server: HashMap<LanguageServerId, ProjectTransaction>,
107 client: Arc<client::Client>,
108 next_entry_id: Arc<AtomicUsize>,
109 join_project_response_message_id: u32,
110 next_diagnostic_group_id: usize,
111 user_store: ModelHandle<UserStore>,
112 fs: Arc<dyn Fs>,
113 client_state: Option<ProjectClientState>,
114 collaborators: HashMap<proto::PeerId, Collaborator>,
115 client_subscriptions: Vec<client::Subscription>,
116 _subscriptions: Vec<gpui::Subscription>,
117 next_buffer_id: u64,
118 opened_buffer: (watch::Sender<()>, watch::Receiver<()>),
119 shared_buffers: HashMap<proto::PeerId, HashSet<u64>>,
120 #[allow(clippy::type_complexity)]
121 loading_buffers_by_path: HashMap<
122 ProjectPath,
123 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
124 >,
125 #[allow(clippy::type_complexity)]
126 loading_local_worktrees:
127 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
128 opened_buffers: HashMap<u64, OpenBuffer>,
129 local_buffer_ids_by_path: HashMap<ProjectPath, u64>,
130 local_buffer_ids_by_entry_id: HashMap<ProjectEntryId, u64>,
131 /// A mapping from a buffer ID to None means that we've started waiting for an ID but haven't finished loading it.
132 /// Used for re-issuing buffer requests when peers temporarily disconnect
133 incomplete_remote_buffers: HashMap<u64, Option<ModelHandle<Buffer>>>,
134 buffer_snapshots: HashMap<u64, HashMap<LanguageServerId, Vec<LspBufferSnapshot>>>, // buffer_id -> server_id -> vec of snapshots
135 buffers_being_formatted: HashSet<u64>,
136 buffers_needing_diff: HashSet<WeakModelHandle<Buffer>>,
137 git_diff_debouncer: DelayedDebounced,
138 nonce: u128,
139 _maintain_buffer_languages: Task<()>,
140 _maintain_workspace_config: Task<()>,
141 terminals: Terminals,
142 copilot_enabled: bool,
143}
144
145struct DelayedDebounced {
146 task: Option<Task<()>>,
147 cancel_channel: Option<oneshot::Sender<()>>,
148}
149
150impl DelayedDebounced {
151 fn new() -> DelayedDebounced {
152 DelayedDebounced {
153 task: None,
154 cancel_channel: None,
155 }
156 }
157
158 fn fire_new<F>(&mut self, delay: Duration, cx: &mut ModelContext<Project>, func: F)
159 where
160 F: 'static + FnOnce(&mut Project, &mut ModelContext<Project>) -> Task<()>,
161 {
162 if let Some(channel) = self.cancel_channel.take() {
163 _ = channel.send(());
164 }
165
166 let (sender, mut receiver) = oneshot::channel::<()>();
167 self.cancel_channel = Some(sender);
168
169 let previous_task = self.task.take();
170 self.task = Some(cx.spawn(|workspace, mut cx| async move {
171 let mut timer = cx.background().timer(delay).fuse();
172 if let Some(previous_task) = previous_task {
173 previous_task.await;
174 }
175
176 futures::select_biased! {
177 _ = receiver => return,
178 _ = timer => {}
179 }
180
181 workspace
182 .update(&mut cx, |workspace, cx| (func)(workspace, cx))
183 .await;
184 }));
185 }
186}
187
188struct LspBufferSnapshot {
189 version: i32,
190 snapshot: TextBufferSnapshot,
191}
192
193/// Message ordered with respect to buffer operations
194enum BufferOrderedMessage {
195 Operation {
196 buffer_id: u64,
197 operation: proto::Operation,
198 },
199 LanguageServerUpdate {
200 language_server_id: LanguageServerId,
201 message: proto::update_language_server::Variant,
202 },
203 Resync,
204}
205
206enum LocalProjectUpdate {
207 WorktreesChanged,
208 CreateBufferForPeer {
209 peer_id: proto::PeerId,
210 buffer_id: u64,
211 },
212}
213
214enum OpenBuffer {
215 Strong(ModelHandle<Buffer>),
216 Weak(WeakModelHandle<Buffer>),
217 Operations(Vec<Operation>),
218}
219
220enum WorktreeHandle {
221 Strong(ModelHandle<Worktree>),
222 Weak(WeakModelHandle<Worktree>),
223}
224
225enum ProjectClientState {
226 Local {
227 remote_id: u64,
228 updates_tx: mpsc::UnboundedSender<LocalProjectUpdate>,
229 _send_updates: Task<()>,
230 },
231 Remote {
232 sharing_has_stopped: bool,
233 remote_id: u64,
234 replica_id: ReplicaId,
235 },
236}
237
238#[derive(Clone, Debug)]
239pub struct Collaborator {
240 pub peer_id: proto::PeerId,
241 pub replica_id: ReplicaId,
242}
243
244#[derive(Clone, Debug, PartialEq, Eq)]
245pub enum Event {
246 LanguageServerAdded(LanguageServerId),
247 LanguageServerRemoved(LanguageServerId),
248 ActiveEntryChanged(Option<ProjectEntryId>),
249 WorktreeAdded,
250 WorktreeRemoved(WorktreeId),
251 DiskBasedDiagnosticsStarted {
252 language_server_id: LanguageServerId,
253 },
254 DiskBasedDiagnosticsFinished {
255 language_server_id: LanguageServerId,
256 },
257 DiagnosticsUpdated {
258 path: ProjectPath,
259 language_server_id: LanguageServerId,
260 },
261 RemoteIdChanged(Option<u64>),
262 DisconnectedFromHost,
263 Closed,
264 DeletedEntry(ProjectEntryId),
265 CollaboratorUpdated {
266 old_peer_id: proto::PeerId,
267 new_peer_id: proto::PeerId,
268 },
269 CollaboratorLeft(proto::PeerId),
270}
271
272pub enum LanguageServerState {
273 Starting(Task<Option<Arc<LanguageServer>>>),
274 Running {
275 language: Arc<Language>,
276 adapter: Arc<CachedLspAdapter>,
277 server: Arc<LanguageServer>,
278 watched_paths: HashMap<WorktreeId, GlobSet>,
279 simulate_disk_based_diagnostics_completion: Option<Task<()>>,
280 },
281}
282
283#[derive(Serialize)]
284pub struct LanguageServerStatus {
285 pub name: String,
286 pub pending_work: BTreeMap<String, LanguageServerProgress>,
287 pub has_pending_diagnostic_updates: bool,
288 progress_tokens: HashSet<String>,
289}
290
291#[derive(Clone, Debug, Serialize)]
292pub struct LanguageServerProgress {
293 pub message: Option<String>,
294 pub percentage: Option<usize>,
295 #[serde(skip_serializing)]
296 pub last_update_at: Instant,
297}
298
299#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
300pub struct ProjectPath {
301 pub worktree_id: WorktreeId,
302 pub path: Arc<Path>,
303}
304
305#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
306pub struct DiagnosticSummary {
307 pub error_count: usize,
308 pub warning_count: usize,
309}
310
311#[derive(Debug, Clone)]
312pub struct Location {
313 pub buffer: ModelHandle<Buffer>,
314 pub range: Range<language::Anchor>,
315}
316
317#[derive(Debug, Clone)]
318pub struct LocationLink {
319 pub origin: Option<Location>,
320 pub target: Location,
321}
322
323#[derive(Debug)]
324pub struct DocumentHighlight {
325 pub range: Range<language::Anchor>,
326 pub kind: DocumentHighlightKind,
327}
328
329#[derive(Clone, Debug)]
330pub struct Symbol {
331 pub language_server_name: LanguageServerName,
332 pub source_worktree_id: WorktreeId,
333 pub path: ProjectPath,
334 pub label: CodeLabel,
335 pub name: String,
336 pub kind: lsp::SymbolKind,
337 pub range: Range<Unclipped<PointUtf16>>,
338 pub signature: [u8; 32],
339}
340
341#[derive(Clone, Debug, PartialEq)]
342pub struct HoverBlock {
343 pub text: String,
344 pub kind: HoverBlockKind,
345}
346
347#[derive(Clone, Debug, PartialEq)]
348pub enum HoverBlockKind {
349 PlainText,
350 Markdown,
351 Code { language: String },
352}
353
354#[derive(Debug)]
355pub struct Hover {
356 pub contents: Vec<HoverBlock>,
357 pub range: Option<Range<language::Anchor>>,
358}
359
360#[derive(Default)]
361pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
362
363impl DiagnosticSummary {
364 fn new<'a, T: 'a>(diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>) -> Self {
365 let mut this = Self {
366 error_count: 0,
367 warning_count: 0,
368 };
369
370 for entry in diagnostics {
371 if entry.diagnostic.is_primary {
372 match entry.diagnostic.severity {
373 DiagnosticSeverity::ERROR => this.error_count += 1,
374 DiagnosticSeverity::WARNING => this.warning_count += 1,
375 _ => {}
376 }
377 }
378 }
379
380 this
381 }
382
383 pub fn is_empty(&self) -> bool {
384 self.error_count == 0 && self.warning_count == 0
385 }
386
387 pub fn to_proto(
388 &self,
389 language_server_id: LanguageServerId,
390 path: &Path,
391 ) -> proto::DiagnosticSummary {
392 proto::DiagnosticSummary {
393 path: path.to_string_lossy().to_string(),
394 language_server_id: language_server_id.0 as u64,
395 error_count: self.error_count as u32,
396 warning_count: self.warning_count as u32,
397 }
398 }
399}
400
401#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
402pub struct ProjectEntryId(usize);
403
404impl ProjectEntryId {
405 pub const MAX: Self = Self(usize::MAX);
406
407 pub fn new(counter: &AtomicUsize) -> Self {
408 Self(counter.fetch_add(1, SeqCst))
409 }
410
411 pub fn from_proto(id: u64) -> Self {
412 Self(id as usize)
413 }
414
415 pub fn to_proto(&self) -> u64 {
416 self.0 as u64
417 }
418
419 pub fn to_usize(&self) -> usize {
420 self.0
421 }
422}
423
424#[derive(Debug, Clone, Copy, PartialEq, Eq)]
425pub enum FormatTrigger {
426 Save,
427 Manual,
428}
429
430impl FormatTrigger {
431 fn from_proto(value: i32) -> FormatTrigger {
432 match value {
433 0 => FormatTrigger::Save,
434 1 => FormatTrigger::Manual,
435 _ => FormatTrigger::Save,
436 }
437 }
438}
439
440impl Project {
441 pub fn init_settings(cx: &mut AppContext) {
442 settings::register::<ProjectSettings>(cx);
443 }
444
445 pub fn init(client: &Arc<Client>, cx: &mut AppContext) {
446 Self::init_settings(cx);
447
448 client.add_model_message_handler(Self::handle_add_collaborator);
449 client.add_model_message_handler(Self::handle_update_project_collaborator);
450 client.add_model_message_handler(Self::handle_remove_collaborator);
451 client.add_model_message_handler(Self::handle_buffer_reloaded);
452 client.add_model_message_handler(Self::handle_buffer_saved);
453 client.add_model_message_handler(Self::handle_start_language_server);
454 client.add_model_message_handler(Self::handle_update_language_server);
455 client.add_model_message_handler(Self::handle_update_project);
456 client.add_model_message_handler(Self::handle_unshare_project);
457 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
458 client.add_model_message_handler(Self::handle_update_buffer_file);
459 client.add_model_request_handler(Self::handle_update_buffer);
460 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
461 client.add_model_message_handler(Self::handle_update_worktree);
462 client.add_model_request_handler(Self::handle_create_project_entry);
463 client.add_model_request_handler(Self::handle_rename_project_entry);
464 client.add_model_request_handler(Self::handle_copy_project_entry);
465 client.add_model_request_handler(Self::handle_delete_project_entry);
466 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
467 client.add_model_request_handler(Self::handle_apply_code_action);
468 client.add_model_request_handler(Self::handle_on_type_formatting);
469 client.add_model_request_handler(Self::handle_reload_buffers);
470 client.add_model_request_handler(Self::handle_synchronize_buffers);
471 client.add_model_request_handler(Self::handle_format_buffers);
472 client.add_model_request_handler(Self::handle_lsp_command::<GetCodeActions>);
473 client.add_model_request_handler(Self::handle_lsp_command::<GetCompletions>);
474 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
475 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
476 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
477 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
478 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
479 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
480 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
481 client.add_model_request_handler(Self::handle_search_project);
482 client.add_model_request_handler(Self::handle_get_project_symbols);
483 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
484 client.add_model_request_handler(Self::handle_open_buffer_by_id);
485 client.add_model_request_handler(Self::handle_open_buffer_by_path);
486 client.add_model_request_handler(Self::handle_save_buffer);
487 client.add_model_message_handler(Self::handle_update_diff_base);
488 }
489
490 pub fn local(
491 client: Arc<Client>,
492 user_store: ModelHandle<UserStore>,
493 languages: Arc<LanguageRegistry>,
494 fs: Arc<dyn Fs>,
495 cx: &mut AppContext,
496 ) -> ModelHandle<Self> {
497 cx.add_model(|cx: &mut ModelContext<Self>| {
498 let (tx, rx) = mpsc::unbounded();
499 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
500 .detach();
501 Self {
502 worktrees: Default::default(),
503 buffer_ordered_messages_tx: tx,
504 collaborators: Default::default(),
505 next_buffer_id: 0,
506 opened_buffers: Default::default(),
507 shared_buffers: Default::default(),
508 incomplete_remote_buffers: Default::default(),
509 loading_buffers_by_path: Default::default(),
510 loading_local_worktrees: Default::default(),
511 local_buffer_ids_by_path: Default::default(),
512 local_buffer_ids_by_entry_id: Default::default(),
513 buffer_snapshots: Default::default(),
514 join_project_response_message_id: 0,
515 client_state: None,
516 opened_buffer: watch::channel(),
517 client_subscriptions: Vec::new(),
518 _subscriptions: vec![
519 cx.observe_global::<SettingsStore, _>(Self::on_settings_changed)
520 ],
521 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
522 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
523 active_entry: None,
524 languages,
525 client,
526 user_store,
527 fs,
528 next_entry_id: Default::default(),
529 next_diagnostic_group_id: Default::default(),
530 language_servers: Default::default(),
531 language_server_ids: Default::default(),
532 language_server_statuses: Default::default(),
533 last_workspace_edits_by_language_server: Default::default(),
534 buffers_being_formatted: Default::default(),
535 buffers_needing_diff: Default::default(),
536 git_diff_debouncer: DelayedDebounced::new(),
537 nonce: StdRng::from_entropy().gen(),
538 terminals: Terminals {
539 local_handles: Vec::new(),
540 },
541 copilot_enabled: Copilot::global(cx).is_some(),
542 }
543 })
544 }
545
546 pub async fn remote(
547 remote_id: u64,
548 client: Arc<Client>,
549 user_store: ModelHandle<UserStore>,
550 languages: Arc<LanguageRegistry>,
551 fs: Arc<dyn Fs>,
552 mut cx: AsyncAppContext,
553 ) -> Result<ModelHandle<Self>> {
554 client.authenticate_and_connect(true, &cx).await?;
555
556 let subscription = client.subscribe_to_entity(remote_id)?;
557 let response = client
558 .request_envelope(proto::JoinProject {
559 project_id: remote_id,
560 })
561 .await?;
562 let this = cx.add_model(|cx| {
563 let replica_id = response.payload.replica_id as ReplicaId;
564
565 let mut worktrees = Vec::new();
566 for worktree in response.payload.worktrees {
567 let worktree = cx.update(|cx| {
568 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx)
569 });
570 worktrees.push(worktree);
571 }
572
573 let (tx, rx) = mpsc::unbounded();
574 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
575 .detach();
576 let mut this = Self {
577 worktrees: Vec::new(),
578 buffer_ordered_messages_tx: tx,
579 loading_buffers_by_path: Default::default(),
580 next_buffer_id: 0,
581 opened_buffer: watch::channel(),
582 shared_buffers: Default::default(),
583 incomplete_remote_buffers: Default::default(),
584 loading_local_worktrees: Default::default(),
585 local_buffer_ids_by_path: Default::default(),
586 local_buffer_ids_by_entry_id: Default::default(),
587 active_entry: None,
588 collaborators: Default::default(),
589 join_project_response_message_id: response.message_id,
590 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
591 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
592 languages,
593 user_store: user_store.clone(),
594 fs,
595 next_entry_id: Default::default(),
596 next_diagnostic_group_id: Default::default(),
597 client_subscriptions: Default::default(),
598 _subscriptions: Default::default(),
599 client: client.clone(),
600 client_state: Some(ProjectClientState::Remote {
601 sharing_has_stopped: false,
602 remote_id,
603 replica_id,
604 }),
605 language_servers: Default::default(),
606 language_server_ids: Default::default(),
607 language_server_statuses: response
608 .payload
609 .language_servers
610 .into_iter()
611 .map(|server| {
612 (
613 LanguageServerId(server.id as usize),
614 LanguageServerStatus {
615 name: server.name,
616 pending_work: Default::default(),
617 has_pending_diagnostic_updates: false,
618 progress_tokens: Default::default(),
619 },
620 )
621 })
622 .collect(),
623 last_workspace_edits_by_language_server: Default::default(),
624 opened_buffers: Default::default(),
625 buffers_being_formatted: Default::default(),
626 buffers_needing_diff: Default::default(),
627 git_diff_debouncer: DelayedDebounced::new(),
628 buffer_snapshots: Default::default(),
629 nonce: StdRng::from_entropy().gen(),
630 terminals: Terminals {
631 local_handles: Vec::new(),
632 },
633 copilot_enabled: Copilot::global(cx).is_some(),
634 };
635 for worktree in worktrees {
636 let _ = this.add_worktree(&worktree, cx);
637 }
638 this
639 });
640 let subscription = subscription.set_model(&this, &mut cx);
641
642 let user_ids = response
643 .payload
644 .collaborators
645 .iter()
646 .map(|peer| peer.user_id)
647 .collect();
648 user_store
649 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
650 .await?;
651
652 this.update(&mut cx, |this, cx| {
653 this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
654 this.client_subscriptions.push(subscription);
655 anyhow::Ok(())
656 })?;
657
658 Ok(this)
659 }
660
661 #[cfg(any(test, feature = "test-support"))]
662 pub async fn test(
663 fs: Arc<dyn Fs>,
664 root_paths: impl IntoIterator<Item = &Path>,
665 cx: &mut gpui::TestAppContext,
666 ) -> ModelHandle<Project> {
667 let mut languages = LanguageRegistry::test();
668 languages.set_executor(cx.background());
669 let http_client = util::http::FakeHttpClient::with_404_response();
670 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
671 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
672 let project =
673 cx.update(|cx| Project::local(client, user_store, Arc::new(languages), fs, cx));
674 for path in root_paths {
675 let (tree, _) = project
676 .update(cx, |project, cx| {
677 project.find_or_create_local_worktree(path, true, cx)
678 })
679 .await
680 .unwrap();
681 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
682 .await;
683 }
684 project
685 }
686
687 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
688 let settings = all_language_settings(cx);
689
690 let mut language_servers_to_start = Vec::new();
691 for buffer in self.opened_buffers.values() {
692 if let Some(buffer) = buffer.upgrade(cx) {
693 let buffer = buffer.read(cx);
694 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
695 {
696 if settings
697 .language(Some(&language.name()))
698 .enable_language_server
699 {
700 let worktree = file.worktree.read(cx);
701 language_servers_to_start.push((
702 worktree.id(),
703 worktree.as_local().unwrap().abs_path().clone(),
704 language.clone(),
705 ));
706 }
707 }
708 }
709 }
710
711 let mut language_servers_to_stop = Vec::new();
712 for language in self.languages.to_vec() {
713 for lsp_adapter in language.lsp_adapters() {
714 if !settings
715 .language(Some(&language.name()))
716 .enable_language_server
717 {
718 let lsp_name = &lsp_adapter.name;
719 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
720 if lsp_name == started_lsp_name {
721 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
722 }
723 }
724 }
725 }
726 }
727
728 // Stop all newly-disabled language servers.
729 for (worktree_id, adapter_name) in language_servers_to_stop {
730 self.stop_language_server(worktree_id, adapter_name, cx)
731 .detach();
732 }
733
734 // Start all the newly-enabled language servers.
735 for (worktree_id, worktree_path, language) in language_servers_to_start {
736 self.start_language_servers(worktree_id, worktree_path, language, cx);
737 }
738
739 if !self.copilot_enabled && Copilot::global(cx).is_some() {
740 self.copilot_enabled = true;
741 for buffer in self.opened_buffers.values() {
742 if let Some(buffer) = buffer.upgrade(cx) {
743 self.register_buffer_with_copilot(&buffer, cx);
744 }
745 }
746 }
747
748 cx.notify();
749 }
750
751 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
752 self.opened_buffers
753 .get(&remote_id)
754 .and_then(|buffer| buffer.upgrade(cx))
755 }
756
757 pub fn languages(&self) -> &Arc<LanguageRegistry> {
758 &self.languages
759 }
760
761 pub fn client(&self) -> Arc<Client> {
762 self.client.clone()
763 }
764
765 pub fn user_store(&self) -> ModelHandle<UserStore> {
766 self.user_store.clone()
767 }
768
769 #[cfg(any(test, feature = "test-support"))]
770 pub fn opened_buffers(&self, cx: &AppContext) -> Vec<ModelHandle<Buffer>> {
771 self.opened_buffers
772 .values()
773 .filter_map(|b| b.upgrade(cx))
774 .collect()
775 }
776
777 #[cfg(any(test, feature = "test-support"))]
778 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
779 let path = path.into();
780 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
781 self.opened_buffers.iter().any(|(_, buffer)| {
782 if let Some(buffer) = buffer.upgrade(cx) {
783 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
784 if file.worktree == worktree && file.path() == &path.path {
785 return true;
786 }
787 }
788 }
789 false
790 })
791 } else {
792 false
793 }
794 }
795
796 pub fn fs(&self) -> &Arc<dyn Fs> {
797 &self.fs
798 }
799
800 pub fn remote_id(&self) -> Option<u64> {
801 match self.client_state.as_ref()? {
802 ProjectClientState::Local { remote_id, .. }
803 | ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
804 }
805 }
806
807 pub fn replica_id(&self) -> ReplicaId {
808 match &self.client_state {
809 Some(ProjectClientState::Remote { replica_id, .. }) => *replica_id,
810 _ => 0,
811 }
812 }
813
814 fn metadata_changed(&mut self, cx: &mut ModelContext<Self>) {
815 if let Some(ProjectClientState::Local { updates_tx, .. }) = &mut self.client_state {
816 updates_tx
817 .unbounded_send(LocalProjectUpdate::WorktreesChanged)
818 .ok();
819 }
820 cx.notify();
821 }
822
823 pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
824 &self.collaborators
825 }
826
827 /// Collect all worktrees, including ones that don't appear in the project panel
828 pub fn worktrees<'a>(
829 &'a self,
830 cx: &'a AppContext,
831 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
832 self.worktrees
833 .iter()
834 .filter_map(move |worktree| worktree.upgrade(cx))
835 }
836
837 /// Collect all user-visible worktrees, the ones that appear in the project panel
838 pub fn visible_worktrees<'a>(
839 &'a self,
840 cx: &'a AppContext,
841 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
842 self.worktrees.iter().filter_map(|worktree| {
843 worktree.upgrade(cx).and_then(|worktree| {
844 if worktree.read(cx).is_visible() {
845 Some(worktree)
846 } else {
847 None
848 }
849 })
850 })
851 }
852
853 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
854 self.visible_worktrees(cx)
855 .map(|tree| tree.read(cx).root_name())
856 }
857
858 pub fn worktree_for_id(
859 &self,
860 id: WorktreeId,
861 cx: &AppContext,
862 ) -> Option<ModelHandle<Worktree>> {
863 self.worktrees(cx)
864 .find(|worktree| worktree.read(cx).id() == id)
865 }
866
867 pub fn worktree_for_entry(
868 &self,
869 entry_id: ProjectEntryId,
870 cx: &AppContext,
871 ) -> Option<ModelHandle<Worktree>> {
872 self.worktrees(cx)
873 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
874 }
875
876 pub fn worktree_id_for_entry(
877 &self,
878 entry_id: ProjectEntryId,
879 cx: &AppContext,
880 ) -> Option<WorktreeId> {
881 self.worktree_for_entry(entry_id, cx)
882 .map(|worktree| worktree.read(cx).id())
883 }
884
885 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
886 paths.iter().all(|path| self.contains_path(path, cx))
887 }
888
889 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
890 for worktree in self.worktrees(cx) {
891 let worktree = worktree.read(cx).as_local();
892 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
893 return true;
894 }
895 }
896 false
897 }
898
899 pub fn create_entry(
900 &mut self,
901 project_path: impl Into<ProjectPath>,
902 is_directory: bool,
903 cx: &mut ModelContext<Self>,
904 ) -> Option<Task<Result<Entry>>> {
905 let project_path = project_path.into();
906 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
907 if self.is_local() {
908 Some(worktree.update(cx, |worktree, cx| {
909 worktree
910 .as_local_mut()
911 .unwrap()
912 .create_entry(project_path.path, is_directory, cx)
913 }))
914 } else {
915 let client = self.client.clone();
916 let project_id = self.remote_id().unwrap();
917 Some(cx.spawn_weak(|_, mut cx| async move {
918 let response = client
919 .request(proto::CreateProjectEntry {
920 worktree_id: project_path.worktree_id.to_proto(),
921 project_id,
922 path: project_path.path.to_string_lossy().into(),
923 is_directory,
924 })
925 .await?;
926 let entry = response
927 .entry
928 .ok_or_else(|| anyhow!("missing entry in response"))?;
929 worktree
930 .update(&mut cx, |worktree, cx| {
931 worktree.as_remote_mut().unwrap().insert_entry(
932 entry,
933 response.worktree_scan_id as usize,
934 cx,
935 )
936 })
937 .await
938 }))
939 }
940 }
941
942 pub fn copy_entry(
943 &mut self,
944 entry_id: ProjectEntryId,
945 new_path: impl Into<Arc<Path>>,
946 cx: &mut ModelContext<Self>,
947 ) -> Option<Task<Result<Entry>>> {
948 let worktree = self.worktree_for_entry(entry_id, cx)?;
949 let new_path = new_path.into();
950 if self.is_local() {
951 worktree.update(cx, |worktree, cx| {
952 worktree
953 .as_local_mut()
954 .unwrap()
955 .copy_entry(entry_id, new_path, cx)
956 })
957 } else {
958 let client = self.client.clone();
959 let project_id = self.remote_id().unwrap();
960
961 Some(cx.spawn_weak(|_, mut cx| async move {
962 let response = client
963 .request(proto::CopyProjectEntry {
964 project_id,
965 entry_id: entry_id.to_proto(),
966 new_path: new_path.to_string_lossy().into(),
967 })
968 .await?;
969 let entry = response
970 .entry
971 .ok_or_else(|| anyhow!("missing entry in response"))?;
972 worktree
973 .update(&mut cx, |worktree, cx| {
974 worktree.as_remote_mut().unwrap().insert_entry(
975 entry,
976 response.worktree_scan_id as usize,
977 cx,
978 )
979 })
980 .await
981 }))
982 }
983 }
984
985 pub fn rename_entry(
986 &mut self,
987 entry_id: ProjectEntryId,
988 new_path: impl Into<Arc<Path>>,
989 cx: &mut ModelContext<Self>,
990 ) -> Option<Task<Result<Entry>>> {
991 let worktree = self.worktree_for_entry(entry_id, cx)?;
992 let new_path = new_path.into();
993 if self.is_local() {
994 worktree.update(cx, |worktree, cx| {
995 worktree
996 .as_local_mut()
997 .unwrap()
998 .rename_entry(entry_id, new_path, cx)
999 })
1000 } else {
1001 let client = self.client.clone();
1002 let project_id = self.remote_id().unwrap();
1003
1004 Some(cx.spawn_weak(|_, mut cx| async move {
1005 let response = client
1006 .request(proto::RenameProjectEntry {
1007 project_id,
1008 entry_id: entry_id.to_proto(),
1009 new_path: new_path.to_string_lossy().into(),
1010 })
1011 .await?;
1012 let entry = response
1013 .entry
1014 .ok_or_else(|| anyhow!("missing entry in response"))?;
1015 worktree
1016 .update(&mut cx, |worktree, cx| {
1017 worktree.as_remote_mut().unwrap().insert_entry(
1018 entry,
1019 response.worktree_scan_id as usize,
1020 cx,
1021 )
1022 })
1023 .await
1024 }))
1025 }
1026 }
1027
1028 pub fn delete_entry(
1029 &mut self,
1030 entry_id: ProjectEntryId,
1031 cx: &mut ModelContext<Self>,
1032 ) -> Option<Task<Result<()>>> {
1033 let worktree = self.worktree_for_entry(entry_id, cx)?;
1034
1035 cx.emit(Event::DeletedEntry(entry_id));
1036
1037 if self.is_local() {
1038 worktree.update(cx, |worktree, cx| {
1039 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
1040 })
1041 } else {
1042 let client = self.client.clone();
1043 let project_id = self.remote_id().unwrap();
1044 Some(cx.spawn_weak(|_, mut cx| async move {
1045 let response = client
1046 .request(proto::DeleteProjectEntry {
1047 project_id,
1048 entry_id: entry_id.to_proto(),
1049 })
1050 .await?;
1051 worktree
1052 .update(&mut cx, move |worktree, cx| {
1053 worktree.as_remote_mut().unwrap().delete_entry(
1054 entry_id,
1055 response.worktree_scan_id as usize,
1056 cx,
1057 )
1058 })
1059 .await
1060 }))
1061 }
1062 }
1063
1064 pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Result<()> {
1065 if self.client_state.is_some() {
1066 return Err(anyhow!("project was already shared"));
1067 }
1068 self.client_subscriptions.push(
1069 self.client
1070 .subscribe_to_entity(project_id)?
1071 .set_model(&cx.handle(), &mut cx.to_async()),
1072 );
1073
1074 for open_buffer in self.opened_buffers.values_mut() {
1075 match open_buffer {
1076 OpenBuffer::Strong(_) => {}
1077 OpenBuffer::Weak(buffer) => {
1078 if let Some(buffer) = buffer.upgrade(cx) {
1079 *open_buffer = OpenBuffer::Strong(buffer);
1080 }
1081 }
1082 OpenBuffer::Operations(_) => unreachable!(),
1083 }
1084 }
1085
1086 for worktree_handle in self.worktrees.iter_mut() {
1087 match worktree_handle {
1088 WorktreeHandle::Strong(_) => {}
1089 WorktreeHandle::Weak(worktree) => {
1090 if let Some(worktree) = worktree.upgrade(cx) {
1091 *worktree_handle = WorktreeHandle::Strong(worktree);
1092 }
1093 }
1094 }
1095 }
1096
1097 for (server_id, status) in &self.language_server_statuses {
1098 self.client
1099 .send(proto::StartLanguageServer {
1100 project_id,
1101 server: Some(proto::LanguageServer {
1102 id: server_id.0 as u64,
1103 name: status.name.clone(),
1104 }),
1105 })
1106 .log_err();
1107 }
1108
1109 let (updates_tx, mut updates_rx) = mpsc::unbounded();
1110 let client = self.client.clone();
1111 self.client_state = Some(ProjectClientState::Local {
1112 remote_id: project_id,
1113 updates_tx,
1114 _send_updates: cx.spawn_weak(move |this, mut cx| async move {
1115 while let Some(update) = updates_rx.next().await {
1116 let Some(this) = this.upgrade(&cx) else { break };
1117
1118 match update {
1119 LocalProjectUpdate::WorktreesChanged => {
1120 let worktrees = this
1121 .read_with(&cx, |this, cx| this.worktrees(cx).collect::<Vec<_>>());
1122 let update_project = this
1123 .read_with(&cx, |this, cx| {
1124 this.client.request(proto::UpdateProject {
1125 project_id,
1126 worktrees: this.worktree_metadata_protos(cx),
1127 })
1128 })
1129 .await;
1130 if update_project.is_ok() {
1131 for worktree in worktrees {
1132 worktree.update(&mut cx, |worktree, cx| {
1133 let worktree = worktree.as_local_mut().unwrap();
1134 worktree.share(project_id, cx).detach_and_log_err(cx)
1135 });
1136 }
1137 }
1138 }
1139 LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id } => {
1140 let buffer = this.update(&mut cx, |this, _| {
1141 let buffer = this.opened_buffers.get(&buffer_id).unwrap();
1142 let shared_buffers =
1143 this.shared_buffers.entry(peer_id).or_default();
1144 if shared_buffers.insert(buffer_id) {
1145 if let OpenBuffer::Strong(buffer) = buffer {
1146 Some(buffer.clone())
1147 } else {
1148 None
1149 }
1150 } else {
1151 None
1152 }
1153 });
1154
1155 let Some(buffer) = buffer else { continue };
1156 let operations =
1157 buffer.read_with(&cx, |b, cx| b.serialize_ops(None, cx));
1158 let operations = operations.await;
1159 let state = buffer.read_with(&cx, |buffer, _| buffer.to_proto());
1160
1161 let initial_state = proto::CreateBufferForPeer {
1162 project_id,
1163 peer_id: Some(peer_id),
1164 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
1165 };
1166 if client.send(initial_state).log_err().is_some() {
1167 let client = client.clone();
1168 cx.background()
1169 .spawn(async move {
1170 let mut chunks = split_operations(operations).peekable();
1171 while let Some(chunk) = chunks.next() {
1172 let is_last = chunks.peek().is_none();
1173 client.send(proto::CreateBufferForPeer {
1174 project_id,
1175 peer_id: Some(peer_id),
1176 variant: Some(
1177 proto::create_buffer_for_peer::Variant::Chunk(
1178 proto::BufferChunk {
1179 buffer_id,
1180 operations: chunk,
1181 is_last,
1182 },
1183 ),
1184 ),
1185 })?;
1186 }
1187 anyhow::Ok(())
1188 })
1189 .await
1190 .log_err();
1191 }
1192 }
1193 }
1194 }
1195 }),
1196 });
1197
1198 self.metadata_changed(cx);
1199 cx.emit(Event::RemoteIdChanged(Some(project_id)));
1200 cx.notify();
1201 Ok(())
1202 }
1203
1204 pub fn reshared(
1205 &mut self,
1206 message: proto::ResharedProject,
1207 cx: &mut ModelContext<Self>,
1208 ) -> Result<()> {
1209 self.shared_buffers.clear();
1210 self.set_collaborators_from_proto(message.collaborators, cx)?;
1211 self.metadata_changed(cx);
1212 Ok(())
1213 }
1214
1215 pub fn rejoined(
1216 &mut self,
1217 message: proto::RejoinedProject,
1218 message_id: u32,
1219 cx: &mut ModelContext<Self>,
1220 ) -> Result<()> {
1221 self.join_project_response_message_id = message_id;
1222 self.set_worktrees_from_proto(message.worktrees, cx)?;
1223 self.set_collaborators_from_proto(message.collaborators, cx)?;
1224 self.language_server_statuses = message
1225 .language_servers
1226 .into_iter()
1227 .map(|server| {
1228 (
1229 LanguageServerId(server.id as usize),
1230 LanguageServerStatus {
1231 name: server.name,
1232 pending_work: Default::default(),
1233 has_pending_diagnostic_updates: false,
1234 progress_tokens: Default::default(),
1235 },
1236 )
1237 })
1238 .collect();
1239 self.buffer_ordered_messages_tx
1240 .unbounded_send(BufferOrderedMessage::Resync)
1241 .unwrap();
1242 cx.notify();
1243 Ok(())
1244 }
1245
1246 pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1247 self.unshare_internal(cx)?;
1248 self.metadata_changed(cx);
1249 cx.notify();
1250 Ok(())
1251 }
1252
1253 fn unshare_internal(&mut self, cx: &mut AppContext) -> Result<()> {
1254 if self.is_remote() {
1255 return Err(anyhow!("attempted to unshare a remote project"));
1256 }
1257
1258 if let Some(ProjectClientState::Local { remote_id, .. }) = self.client_state.take() {
1259 self.collaborators.clear();
1260 self.shared_buffers.clear();
1261 self.client_subscriptions.clear();
1262
1263 for worktree_handle in self.worktrees.iter_mut() {
1264 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1265 let is_visible = worktree.update(cx, |worktree, _| {
1266 worktree.as_local_mut().unwrap().unshare();
1267 worktree.is_visible()
1268 });
1269 if !is_visible {
1270 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1271 }
1272 }
1273 }
1274
1275 for open_buffer in self.opened_buffers.values_mut() {
1276 // Wake up any tasks waiting for peers' edits to this buffer.
1277 if let Some(buffer) = open_buffer.upgrade(cx) {
1278 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1279 }
1280
1281 if let OpenBuffer::Strong(buffer) = open_buffer {
1282 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1283 }
1284 }
1285
1286 self.client.send(proto::UnshareProject {
1287 project_id: remote_id,
1288 })?;
1289
1290 Ok(())
1291 } else {
1292 Err(anyhow!("attempted to unshare an unshared project"))
1293 }
1294 }
1295
1296 pub fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1297 self.disconnected_from_host_internal(cx);
1298 cx.emit(Event::DisconnectedFromHost);
1299 cx.notify();
1300 }
1301
1302 fn disconnected_from_host_internal(&mut self, cx: &mut AppContext) {
1303 if let Some(ProjectClientState::Remote {
1304 sharing_has_stopped,
1305 ..
1306 }) = &mut self.client_state
1307 {
1308 *sharing_has_stopped = true;
1309
1310 self.collaborators.clear();
1311
1312 for worktree in &self.worktrees {
1313 if let Some(worktree) = worktree.upgrade(cx) {
1314 worktree.update(cx, |worktree, _| {
1315 if let Some(worktree) = worktree.as_remote_mut() {
1316 worktree.disconnected_from_host();
1317 }
1318 });
1319 }
1320 }
1321
1322 for open_buffer in self.opened_buffers.values_mut() {
1323 // Wake up any tasks waiting for peers' edits to this buffer.
1324 if let Some(buffer) = open_buffer.upgrade(cx) {
1325 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1326 }
1327
1328 if let OpenBuffer::Strong(buffer) = open_buffer {
1329 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1330 }
1331 }
1332
1333 // Wake up all futures currently waiting on a buffer to get opened,
1334 // to give them a chance to fail now that we've disconnected.
1335 *self.opened_buffer.0.borrow_mut() = ();
1336 }
1337 }
1338
1339 pub fn close(&mut self, cx: &mut ModelContext<Self>) {
1340 cx.emit(Event::Closed);
1341 }
1342
1343 pub fn is_read_only(&self) -> bool {
1344 match &self.client_state {
1345 Some(ProjectClientState::Remote {
1346 sharing_has_stopped,
1347 ..
1348 }) => *sharing_has_stopped,
1349 _ => false,
1350 }
1351 }
1352
1353 pub fn is_local(&self) -> bool {
1354 match &self.client_state {
1355 Some(ProjectClientState::Remote { .. }) => false,
1356 _ => true,
1357 }
1358 }
1359
1360 pub fn is_remote(&self) -> bool {
1361 !self.is_local()
1362 }
1363
1364 pub fn create_buffer(
1365 &mut self,
1366 text: &str,
1367 language: Option<Arc<Language>>,
1368 cx: &mut ModelContext<Self>,
1369 ) -> Result<ModelHandle<Buffer>> {
1370 if self.is_remote() {
1371 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1372 }
1373
1374 let buffer = cx.add_model(|cx| {
1375 Buffer::new(self.replica_id(), text, cx)
1376 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1377 });
1378 self.register_buffer(&buffer, cx)?;
1379 Ok(buffer)
1380 }
1381
1382 pub fn open_path(
1383 &mut self,
1384 path: impl Into<ProjectPath>,
1385 cx: &mut ModelContext<Self>,
1386 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1387 let task = self.open_buffer(path, cx);
1388 cx.spawn_weak(|_, cx| async move {
1389 let buffer = task.await?;
1390 let project_entry_id = buffer
1391 .read_with(&cx, |buffer, cx| {
1392 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1393 })
1394 .ok_or_else(|| anyhow!("no project entry"))?;
1395
1396 let buffer: &AnyModelHandle = &buffer;
1397 Ok((project_entry_id, buffer.clone()))
1398 })
1399 }
1400
1401 pub fn open_local_buffer(
1402 &mut self,
1403 abs_path: impl AsRef<Path>,
1404 cx: &mut ModelContext<Self>,
1405 ) -> Task<Result<ModelHandle<Buffer>>> {
1406 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1407 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1408 } else {
1409 Task::ready(Err(anyhow!("no such path")))
1410 }
1411 }
1412
1413 pub fn open_buffer(
1414 &mut self,
1415 path: impl Into<ProjectPath>,
1416 cx: &mut ModelContext<Self>,
1417 ) -> Task<Result<ModelHandle<Buffer>>> {
1418 let project_path = path.into();
1419 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1420 worktree
1421 } else {
1422 return Task::ready(Err(anyhow!("no such worktree")));
1423 };
1424
1425 // If there is already a buffer for the given path, then return it.
1426 let existing_buffer = self.get_open_buffer(&project_path, cx);
1427 if let Some(existing_buffer) = existing_buffer {
1428 return Task::ready(Ok(existing_buffer));
1429 }
1430
1431 let loading_watch = match self.loading_buffers_by_path.entry(project_path.clone()) {
1432 // If the given path is already being loaded, then wait for that existing
1433 // task to complete and return the same buffer.
1434 hash_map::Entry::Occupied(e) => e.get().clone(),
1435
1436 // Otherwise, record the fact that this path is now being loaded.
1437 hash_map::Entry::Vacant(entry) => {
1438 let (mut tx, rx) = postage::watch::channel();
1439 entry.insert(rx.clone());
1440
1441 let load_buffer = if worktree.read(cx).is_local() {
1442 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1443 } else {
1444 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1445 };
1446
1447 cx.spawn(move |this, mut cx| async move {
1448 let load_result = load_buffer.await;
1449 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1450 // Record the fact that the buffer is no longer loading.
1451 this.loading_buffers_by_path.remove(&project_path);
1452 let buffer = load_result.map_err(Arc::new)?;
1453 Ok(buffer)
1454 }));
1455 })
1456 .detach();
1457 rx
1458 }
1459 };
1460
1461 cx.foreground().spawn(async move {
1462 pump_loading_buffer_reciever(loading_watch)
1463 .await
1464 .map_err(|error| anyhow!("{}", error))
1465 })
1466 }
1467
1468 fn open_local_buffer_internal(
1469 &mut self,
1470 path: &Arc<Path>,
1471 worktree: &ModelHandle<Worktree>,
1472 cx: &mut ModelContext<Self>,
1473 ) -> Task<Result<ModelHandle<Buffer>>> {
1474 let buffer_id = post_inc(&mut self.next_buffer_id);
1475 let load_buffer = worktree.update(cx, |worktree, cx| {
1476 let worktree = worktree.as_local_mut().unwrap();
1477 worktree.load_buffer(buffer_id, path, cx)
1478 });
1479 cx.spawn(|this, mut cx| async move {
1480 let buffer = load_buffer.await?;
1481 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1482 Ok(buffer)
1483 })
1484 }
1485
1486 fn open_remote_buffer_internal(
1487 &mut self,
1488 path: &Arc<Path>,
1489 worktree: &ModelHandle<Worktree>,
1490 cx: &mut ModelContext<Self>,
1491 ) -> Task<Result<ModelHandle<Buffer>>> {
1492 let rpc = self.client.clone();
1493 let project_id = self.remote_id().unwrap();
1494 let remote_worktree_id = worktree.read(cx).id();
1495 let path = path.clone();
1496 let path_string = path.to_string_lossy().to_string();
1497 cx.spawn(|this, mut cx| async move {
1498 let response = rpc
1499 .request(proto::OpenBufferByPath {
1500 project_id,
1501 worktree_id: remote_worktree_id.to_proto(),
1502 path: path_string,
1503 })
1504 .await?;
1505 this.update(&mut cx, |this, cx| {
1506 this.wait_for_remote_buffer(response.buffer_id, cx)
1507 })
1508 .await
1509 })
1510 }
1511
1512 /// LanguageServerName is owned, because it is inserted into a map
1513 fn open_local_buffer_via_lsp(
1514 &mut self,
1515 abs_path: lsp::Url,
1516 language_server_id: LanguageServerId,
1517 language_server_name: LanguageServerName,
1518 cx: &mut ModelContext<Self>,
1519 ) -> Task<Result<ModelHandle<Buffer>>> {
1520 cx.spawn(|this, mut cx| async move {
1521 let abs_path = abs_path
1522 .to_file_path()
1523 .map_err(|_| anyhow!("can't convert URI to path"))?;
1524 let (worktree, relative_path) = if let Some(result) =
1525 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1526 {
1527 result
1528 } else {
1529 let worktree = this
1530 .update(&mut cx, |this, cx| {
1531 this.create_local_worktree(&abs_path, false, cx)
1532 })
1533 .await?;
1534 this.update(&mut cx, |this, cx| {
1535 this.language_server_ids.insert(
1536 (worktree.read(cx).id(), language_server_name),
1537 language_server_id,
1538 );
1539 });
1540 (worktree, PathBuf::new())
1541 };
1542
1543 let project_path = ProjectPath {
1544 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1545 path: relative_path.into(),
1546 };
1547 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1548 .await
1549 })
1550 }
1551
1552 pub fn open_buffer_by_id(
1553 &mut self,
1554 id: u64,
1555 cx: &mut ModelContext<Self>,
1556 ) -> Task<Result<ModelHandle<Buffer>>> {
1557 if let Some(buffer) = self.buffer_for_id(id, cx) {
1558 Task::ready(Ok(buffer))
1559 } else if self.is_local() {
1560 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1561 } else if let Some(project_id) = self.remote_id() {
1562 let request = self
1563 .client
1564 .request(proto::OpenBufferById { project_id, id });
1565 cx.spawn(|this, mut cx| async move {
1566 let buffer_id = request.await?.buffer_id;
1567 this.update(&mut cx, |this, cx| {
1568 this.wait_for_remote_buffer(buffer_id, cx)
1569 })
1570 .await
1571 })
1572 } else {
1573 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1574 }
1575 }
1576
1577 pub fn save_buffers(
1578 &self,
1579 buffers: HashSet<ModelHandle<Buffer>>,
1580 cx: &mut ModelContext<Self>,
1581 ) -> Task<Result<()>> {
1582 cx.spawn(|this, mut cx| async move {
1583 let save_tasks = buffers
1584 .into_iter()
1585 .map(|buffer| this.update(&mut cx, |this, cx| this.save_buffer(buffer, cx)));
1586 try_join_all(save_tasks).await?;
1587 Ok(())
1588 })
1589 }
1590
1591 pub fn save_buffer(
1592 &self,
1593 buffer: ModelHandle<Buffer>,
1594 cx: &mut ModelContext<Self>,
1595 ) -> Task<Result<(clock::Global, RopeFingerprint, SystemTime)>> {
1596 let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1597 return Task::ready(Err(anyhow!("buffer doesn't have a file")));
1598 };
1599 let worktree = file.worktree.clone();
1600 let path = file.path.clone();
1601 worktree.update(cx, |worktree, cx| match worktree {
1602 Worktree::Local(worktree) => worktree.save_buffer(buffer, path, false, cx),
1603 Worktree::Remote(worktree) => worktree.save_buffer(buffer, cx),
1604 })
1605 }
1606
1607 pub fn save_buffer_as(
1608 &mut self,
1609 buffer: ModelHandle<Buffer>,
1610 abs_path: PathBuf,
1611 cx: &mut ModelContext<Self>,
1612 ) -> Task<Result<()>> {
1613 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1614 let old_file = File::from_dyn(buffer.read(cx).file())
1615 .filter(|f| f.is_local())
1616 .cloned();
1617 cx.spawn(|this, mut cx| async move {
1618 if let Some(old_file) = &old_file {
1619 this.update(&mut cx, |this, cx| {
1620 this.unregister_buffer_from_language_servers(&buffer, old_file, cx);
1621 });
1622 }
1623 let (worktree, path) = worktree_task.await?;
1624 worktree
1625 .update(&mut cx, |worktree, cx| match worktree {
1626 Worktree::Local(worktree) => {
1627 worktree.save_buffer(buffer.clone(), path.into(), true, cx)
1628 }
1629 Worktree::Remote(_) => panic!("cannot remote buffers as new files"),
1630 })
1631 .await?;
1632 this.update(&mut cx, |this, cx| {
1633 this.detect_language_for_buffer(&buffer, cx);
1634 this.register_buffer_with_language_servers(&buffer, cx);
1635 });
1636 Ok(())
1637 })
1638 }
1639
1640 pub fn get_open_buffer(
1641 &mut self,
1642 path: &ProjectPath,
1643 cx: &mut ModelContext<Self>,
1644 ) -> Option<ModelHandle<Buffer>> {
1645 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1646 self.opened_buffers.values().find_map(|buffer| {
1647 let buffer = buffer.upgrade(cx)?;
1648 let file = File::from_dyn(buffer.read(cx).file())?;
1649 if file.worktree == worktree && file.path() == &path.path {
1650 Some(buffer)
1651 } else {
1652 None
1653 }
1654 })
1655 }
1656
1657 fn register_buffer(
1658 &mut self,
1659 buffer: &ModelHandle<Buffer>,
1660 cx: &mut ModelContext<Self>,
1661 ) -> Result<()> {
1662 self.request_buffer_diff_recalculation(buffer, cx);
1663 buffer.update(cx, |buffer, _| {
1664 buffer.set_language_registry(self.languages.clone())
1665 });
1666
1667 let remote_id = buffer.read(cx).remote_id();
1668 let is_remote = self.is_remote();
1669 let open_buffer = if is_remote || self.is_shared() {
1670 OpenBuffer::Strong(buffer.clone())
1671 } else {
1672 OpenBuffer::Weak(buffer.downgrade())
1673 };
1674
1675 match self.opened_buffers.entry(remote_id) {
1676 hash_map::Entry::Vacant(entry) => {
1677 entry.insert(open_buffer);
1678 }
1679 hash_map::Entry::Occupied(mut entry) => {
1680 if let OpenBuffer::Operations(operations) = entry.get_mut() {
1681 buffer.update(cx, |b, cx| b.apply_ops(operations.drain(..), cx))?;
1682 } else if entry.get().upgrade(cx).is_some() {
1683 if is_remote {
1684 return Ok(());
1685 } else {
1686 debug_panic!("buffer {} was already registered", remote_id);
1687 Err(anyhow!("buffer {} was already registered", remote_id))?;
1688 }
1689 }
1690 entry.insert(open_buffer);
1691 }
1692 }
1693 cx.subscribe(buffer, |this, buffer, event, cx| {
1694 this.on_buffer_event(buffer, event, cx);
1695 })
1696 .detach();
1697
1698 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
1699 if file.is_local {
1700 self.local_buffer_ids_by_path.insert(
1701 ProjectPath {
1702 worktree_id: file.worktree_id(cx),
1703 path: file.path.clone(),
1704 },
1705 remote_id,
1706 );
1707
1708 self.local_buffer_ids_by_entry_id
1709 .insert(file.entry_id, remote_id);
1710 }
1711 }
1712
1713 self.detect_language_for_buffer(buffer, cx);
1714 self.register_buffer_with_language_servers(buffer, cx);
1715 self.register_buffer_with_copilot(buffer, cx);
1716 cx.observe_release(buffer, |this, buffer, cx| {
1717 if let Some(file) = File::from_dyn(buffer.file()) {
1718 if file.is_local() {
1719 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1720 for server in this.language_servers_for_buffer(buffer, cx) {
1721 server
1722 .1
1723 .notify::<lsp::notification::DidCloseTextDocument>(
1724 lsp::DidCloseTextDocumentParams {
1725 text_document: lsp::TextDocumentIdentifier::new(uri.clone()),
1726 },
1727 )
1728 .log_err();
1729 }
1730 }
1731 }
1732 })
1733 .detach();
1734
1735 *self.opened_buffer.0.borrow_mut() = ();
1736 Ok(())
1737 }
1738
1739 fn register_buffer_with_language_servers(
1740 &mut self,
1741 buffer_handle: &ModelHandle<Buffer>,
1742 cx: &mut ModelContext<Self>,
1743 ) {
1744 let buffer = buffer_handle.read(cx);
1745 let buffer_id = buffer.remote_id();
1746
1747 if let Some(file) = File::from_dyn(buffer.file()) {
1748 if !file.is_local() {
1749 return;
1750 }
1751
1752 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1753 let initial_snapshot = buffer.text_snapshot();
1754 let language = buffer.language().cloned();
1755 let worktree_id = file.worktree_id(cx);
1756
1757 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1758 for (server_id, diagnostics) in local_worktree.diagnostics_for_path(file.path()) {
1759 self.update_buffer_diagnostics(buffer_handle, server_id, None, diagnostics, cx)
1760 .log_err();
1761 }
1762 }
1763
1764 if let Some(language) = language {
1765 for adapter in language.lsp_adapters() {
1766 let language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1767 let server = self
1768 .language_server_ids
1769 .get(&(worktree_id, adapter.name.clone()))
1770 .and_then(|id| self.language_servers.get(id))
1771 .and_then(|server_state| {
1772 if let LanguageServerState::Running { server, .. } = server_state {
1773 Some(server.clone())
1774 } else {
1775 None
1776 }
1777 });
1778 let server = match server {
1779 Some(server) => server,
1780 None => continue,
1781 };
1782
1783 server
1784 .notify::<lsp::notification::DidOpenTextDocument>(
1785 lsp::DidOpenTextDocumentParams {
1786 text_document: lsp::TextDocumentItem::new(
1787 uri.clone(),
1788 language_id.unwrap_or_default(),
1789 0,
1790 initial_snapshot.text(),
1791 ),
1792 },
1793 )
1794 .log_err();
1795
1796 buffer_handle.update(cx, |buffer, cx| {
1797 buffer.set_completion_triggers(
1798 server
1799 .capabilities()
1800 .completion_provider
1801 .as_ref()
1802 .and_then(|provider| provider.trigger_characters.clone())
1803 .unwrap_or_default(),
1804 cx,
1805 );
1806 });
1807
1808 let snapshot = LspBufferSnapshot {
1809 version: 0,
1810 snapshot: initial_snapshot.clone(),
1811 };
1812 self.buffer_snapshots
1813 .entry(buffer_id)
1814 .or_default()
1815 .insert(server.server_id(), vec![snapshot]);
1816 }
1817 }
1818 }
1819 }
1820
1821 fn unregister_buffer_from_language_servers(
1822 &mut self,
1823 buffer: &ModelHandle<Buffer>,
1824 old_file: &File,
1825 cx: &mut ModelContext<Self>,
1826 ) {
1827 let old_path = match old_file.as_local() {
1828 Some(local) => local.abs_path(cx),
1829 None => return,
1830 };
1831
1832 buffer.update(cx, |buffer, cx| {
1833 let worktree_id = old_file.worktree_id(cx);
1834 let ids = &self.language_server_ids;
1835
1836 let language = buffer.language().cloned();
1837 let adapters = language.iter().flat_map(|language| language.lsp_adapters());
1838 for &server_id in adapters.flat_map(|a| ids.get(&(worktree_id, a.name.clone()))) {
1839 buffer.update_diagnostics(server_id, Default::default(), cx);
1840 }
1841
1842 self.buffer_snapshots.remove(&buffer.remote_id());
1843 let file_url = lsp::Url::from_file_path(old_path).unwrap();
1844 for (_, language_server) in self.language_servers_for_buffer(buffer, cx) {
1845 language_server
1846 .notify::<lsp::notification::DidCloseTextDocument>(
1847 lsp::DidCloseTextDocumentParams {
1848 text_document: lsp::TextDocumentIdentifier::new(file_url.clone()),
1849 },
1850 )
1851 .log_err();
1852 }
1853 });
1854 }
1855
1856 fn register_buffer_with_copilot(
1857 &self,
1858 buffer_handle: &ModelHandle<Buffer>,
1859 cx: &mut ModelContext<Self>,
1860 ) {
1861 if let Some(copilot) = Copilot::global(cx) {
1862 copilot.update(cx, |copilot, cx| copilot.register_buffer(buffer_handle, cx));
1863 }
1864 }
1865
1866 async fn send_buffer_ordered_messages(
1867 this: WeakModelHandle<Self>,
1868 rx: UnboundedReceiver<BufferOrderedMessage>,
1869 mut cx: AsyncAppContext,
1870 ) -> Option<()> {
1871 const MAX_BATCH_SIZE: usize = 128;
1872
1873 let mut operations_by_buffer_id = HashMap::default();
1874 async fn flush_operations(
1875 this: &ModelHandle<Project>,
1876 operations_by_buffer_id: &mut HashMap<u64, Vec<proto::Operation>>,
1877 needs_resync_with_host: &mut bool,
1878 is_local: bool,
1879 cx: &AsyncAppContext,
1880 ) {
1881 for (buffer_id, operations) in operations_by_buffer_id.drain() {
1882 let request = this.read_with(cx, |this, _| {
1883 let project_id = this.remote_id()?;
1884 Some(this.client.request(proto::UpdateBuffer {
1885 buffer_id,
1886 project_id,
1887 operations,
1888 }))
1889 });
1890 if let Some(request) = request {
1891 if request.await.is_err() && !is_local {
1892 *needs_resync_with_host = true;
1893 break;
1894 }
1895 }
1896 }
1897 }
1898
1899 let mut needs_resync_with_host = false;
1900 let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
1901
1902 while let Some(changes) = changes.next().await {
1903 let this = this.upgrade(&mut cx)?;
1904 let is_local = this.read_with(&cx, |this, _| this.is_local());
1905
1906 for change in changes {
1907 match change {
1908 BufferOrderedMessage::Operation {
1909 buffer_id,
1910 operation,
1911 } => {
1912 if needs_resync_with_host {
1913 continue;
1914 }
1915
1916 operations_by_buffer_id
1917 .entry(buffer_id)
1918 .or_insert(Vec::new())
1919 .push(operation);
1920 }
1921
1922 BufferOrderedMessage::Resync => {
1923 operations_by_buffer_id.clear();
1924 if this
1925 .update(&mut cx, |this, cx| this.synchronize_remote_buffers(cx))
1926 .await
1927 .is_ok()
1928 {
1929 needs_resync_with_host = false;
1930 }
1931 }
1932
1933 BufferOrderedMessage::LanguageServerUpdate {
1934 language_server_id,
1935 message,
1936 } => {
1937 flush_operations(
1938 &this,
1939 &mut operations_by_buffer_id,
1940 &mut needs_resync_with_host,
1941 is_local,
1942 &cx,
1943 )
1944 .await;
1945
1946 this.read_with(&cx, |this, _| {
1947 if let Some(project_id) = this.remote_id() {
1948 this.client
1949 .send(proto::UpdateLanguageServer {
1950 project_id,
1951 language_server_id: language_server_id.0 as u64,
1952 variant: Some(message),
1953 })
1954 .log_err();
1955 }
1956 });
1957 }
1958 }
1959 }
1960
1961 flush_operations(
1962 &this,
1963 &mut operations_by_buffer_id,
1964 &mut needs_resync_with_host,
1965 is_local,
1966 &cx,
1967 )
1968 .await;
1969 }
1970
1971 None
1972 }
1973
1974 fn on_buffer_event(
1975 &mut self,
1976 buffer: ModelHandle<Buffer>,
1977 event: &BufferEvent,
1978 cx: &mut ModelContext<Self>,
1979 ) -> Option<()> {
1980 if matches!(event, BufferEvent::Edited { .. } | BufferEvent::Reloaded) {
1981 self.request_buffer_diff_recalculation(&buffer, cx);
1982 }
1983
1984 match event {
1985 BufferEvent::Operation(operation) => {
1986 self.buffer_ordered_messages_tx
1987 .unbounded_send(BufferOrderedMessage::Operation {
1988 buffer_id: buffer.read(cx).remote_id(),
1989 operation: language::proto::serialize_operation(operation),
1990 })
1991 .ok();
1992 }
1993
1994 BufferEvent::Edited { .. } => {
1995 let buffer = buffer.read(cx);
1996 let file = File::from_dyn(buffer.file())?;
1997 let abs_path = file.as_local()?.abs_path(cx);
1998 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1999 let next_snapshot = buffer.text_snapshot();
2000
2001 let language_servers: Vec<_> = self
2002 .language_servers_for_buffer(buffer, cx)
2003 .map(|i| i.1.clone())
2004 .collect();
2005
2006 for language_server in language_servers {
2007 let language_server = language_server.clone();
2008
2009 let buffer_snapshots = self
2010 .buffer_snapshots
2011 .get_mut(&buffer.remote_id())
2012 .and_then(|m| m.get_mut(&language_server.server_id()))?;
2013 let previous_snapshot = buffer_snapshots.last()?;
2014 let next_version = previous_snapshot.version + 1;
2015
2016 let content_changes = buffer
2017 .edits_since::<(PointUtf16, usize)>(previous_snapshot.snapshot.version())
2018 .map(|edit| {
2019 let edit_start = edit.new.start.0;
2020 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
2021 let new_text = next_snapshot
2022 .text_for_range(edit.new.start.1..edit.new.end.1)
2023 .collect();
2024 lsp::TextDocumentContentChangeEvent {
2025 range: Some(lsp::Range::new(
2026 point_to_lsp(edit_start),
2027 point_to_lsp(edit_end),
2028 )),
2029 range_length: None,
2030 text: new_text,
2031 }
2032 })
2033 .collect();
2034
2035 buffer_snapshots.push(LspBufferSnapshot {
2036 version: next_version,
2037 snapshot: next_snapshot.clone(),
2038 });
2039
2040 language_server
2041 .notify::<lsp::notification::DidChangeTextDocument>(
2042 lsp::DidChangeTextDocumentParams {
2043 text_document: lsp::VersionedTextDocumentIdentifier::new(
2044 uri.clone(),
2045 next_version,
2046 ),
2047 content_changes,
2048 },
2049 )
2050 .log_err();
2051 }
2052 }
2053
2054 BufferEvent::Saved => {
2055 let file = File::from_dyn(buffer.read(cx).file())?;
2056 let worktree_id = file.worktree_id(cx);
2057 let abs_path = file.as_local()?.abs_path(cx);
2058 let text_document = lsp::TextDocumentIdentifier {
2059 uri: lsp::Url::from_file_path(abs_path).unwrap(),
2060 };
2061
2062 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
2063 server
2064 .notify::<lsp::notification::DidSaveTextDocument>(
2065 lsp::DidSaveTextDocumentParams {
2066 text_document: text_document.clone(),
2067 text: None,
2068 },
2069 )
2070 .log_err();
2071 }
2072
2073 let language_server_ids = self.language_server_ids_for_buffer(buffer.read(cx), cx);
2074 for language_server_id in language_server_ids {
2075 if let Some(LanguageServerState::Running {
2076 adapter,
2077 simulate_disk_based_diagnostics_completion,
2078 ..
2079 }) = self.language_servers.get_mut(&language_server_id)
2080 {
2081 // After saving a buffer using a language server that doesn't provide
2082 // a disk-based progress token, kick off a timer that will reset every
2083 // time the buffer is saved. If the timer eventually fires, simulate
2084 // disk-based diagnostics being finished so that other pieces of UI
2085 // (e.g., project diagnostics view, diagnostic status bar) can update.
2086 // We don't emit an event right away because the language server might take
2087 // some time to publish diagnostics.
2088 if adapter.disk_based_diagnostics_progress_token.is_none() {
2089 const DISK_BASED_DIAGNOSTICS_DEBOUNCE: Duration =
2090 Duration::from_secs(1);
2091
2092 let task = cx.spawn_weak(|this, mut cx| async move {
2093 cx.background().timer(DISK_BASED_DIAGNOSTICS_DEBOUNCE).await;
2094 if let Some(this) = this.upgrade(&cx) {
2095 this.update(&mut cx, |this, cx| {
2096 this.disk_based_diagnostics_finished(
2097 language_server_id,
2098 cx,
2099 );
2100 this.buffer_ordered_messages_tx
2101 .unbounded_send(
2102 BufferOrderedMessage::LanguageServerUpdate {
2103 language_server_id,
2104 message:proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(Default::default())
2105 },
2106 )
2107 .ok();
2108 });
2109 }
2110 });
2111 *simulate_disk_based_diagnostics_completion = Some(task);
2112 }
2113 }
2114 }
2115 }
2116
2117 _ => {}
2118 }
2119
2120 None
2121 }
2122
2123 fn request_buffer_diff_recalculation(
2124 &mut self,
2125 buffer: &ModelHandle<Buffer>,
2126 cx: &mut ModelContext<Self>,
2127 ) {
2128 self.buffers_needing_diff.insert(buffer.downgrade());
2129 let first_insertion = self.buffers_needing_diff.len() == 1;
2130
2131 let settings = settings::get::<ProjectSettings>(cx);
2132 let delay = if let Some(delay) = settings.git.gutter_debounce {
2133 delay
2134 } else {
2135 if first_insertion {
2136 let this = cx.weak_handle();
2137 cx.defer(move |cx| {
2138 if let Some(this) = this.upgrade(cx) {
2139 this.update(cx, |this, cx| {
2140 this.recalculate_buffer_diffs(cx).detach();
2141 });
2142 }
2143 });
2144 }
2145 return;
2146 };
2147
2148 const MIN_DELAY: u64 = 50;
2149 let delay = delay.max(MIN_DELAY);
2150 let duration = Duration::from_millis(delay);
2151
2152 self.git_diff_debouncer
2153 .fire_new(duration, cx, move |this, cx| {
2154 this.recalculate_buffer_diffs(cx)
2155 });
2156 }
2157
2158 fn recalculate_buffer_diffs(&mut self, cx: &mut ModelContext<Self>) -> Task<()> {
2159 cx.spawn(|this, mut cx| async move {
2160 let buffers: Vec<_> = this.update(&mut cx, |this, _| {
2161 this.buffers_needing_diff.drain().collect()
2162 });
2163
2164 let tasks: Vec<_> = this.update(&mut cx, |_, cx| {
2165 buffers
2166 .iter()
2167 .filter_map(|buffer| {
2168 let buffer = buffer.upgrade(cx)?;
2169 buffer.update(cx, |buffer, cx| buffer.git_diff_recalc_2(cx))
2170 })
2171 .collect()
2172 });
2173
2174 futures::future::join_all(tasks).await;
2175
2176 this.update(&mut cx, |this, cx| {
2177 if !this.buffers_needing_diff.is_empty() {
2178 this.recalculate_buffer_diffs(cx).detach();
2179 } else {
2180 // TODO: Would a `ModelContext<Project>.notify()` suffice here?
2181 for buffer in buffers {
2182 if let Some(buffer) = buffer.upgrade(cx) {
2183 buffer.update(cx, |_, cx| cx.notify());
2184 }
2185 }
2186 }
2187 });
2188 })
2189 }
2190
2191 fn language_servers_for_worktree(
2192 &self,
2193 worktree_id: WorktreeId,
2194 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
2195 self.language_server_ids
2196 .iter()
2197 .filter_map(move |((language_server_worktree_id, _), id)| {
2198 if *language_server_worktree_id == worktree_id {
2199 if let Some(LanguageServerState::Running {
2200 adapter,
2201 language,
2202 server,
2203 ..
2204 }) = self.language_servers.get(id)
2205 {
2206 return Some((adapter, language, server));
2207 }
2208 }
2209 None
2210 })
2211 }
2212
2213 fn maintain_buffer_languages(
2214 languages: &LanguageRegistry,
2215 cx: &mut ModelContext<Project>,
2216 ) -> Task<()> {
2217 let mut subscription = languages.subscribe();
2218 cx.spawn_weak(|project, mut cx| async move {
2219 while let Some(()) = subscription.next().await {
2220 if let Some(project) = project.upgrade(&cx) {
2221 project.update(&mut cx, |project, cx| {
2222 let mut plain_text_buffers = Vec::new();
2223 let mut buffers_with_unknown_injections = Vec::new();
2224 for buffer in project.opened_buffers.values() {
2225 if let Some(handle) = buffer.upgrade(cx) {
2226 let buffer = &handle.read(cx);
2227 if buffer.language().is_none()
2228 || buffer.language() == Some(&*language::PLAIN_TEXT)
2229 {
2230 plain_text_buffers.push(handle);
2231 } else if buffer.contains_unknown_injections() {
2232 buffers_with_unknown_injections.push(handle);
2233 }
2234 }
2235 }
2236
2237 for buffer in plain_text_buffers {
2238 project.detect_language_for_buffer(&buffer, cx);
2239 project.register_buffer_with_language_servers(&buffer, cx);
2240 }
2241
2242 for buffer in buffers_with_unknown_injections {
2243 buffer.update(cx, |buffer, cx| buffer.reparse(cx));
2244 }
2245 });
2246 }
2247 }
2248 })
2249 }
2250
2251 fn maintain_workspace_config(
2252 languages: Arc<LanguageRegistry>,
2253 cx: &mut ModelContext<Project>,
2254 ) -> Task<()> {
2255 let (mut settings_changed_tx, mut settings_changed_rx) = watch::channel();
2256 let _ = postage::stream::Stream::try_recv(&mut settings_changed_rx);
2257
2258 let settings_observation = cx.observe_global::<SettingsStore, _>(move |_, _| {
2259 *settings_changed_tx.borrow_mut() = ();
2260 });
2261 cx.spawn_weak(|this, mut cx| async move {
2262 while let Some(_) = settings_changed_rx.next().await {
2263 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2264 if let Some(this) = this.upgrade(&cx) {
2265 this.read_with(&cx, |this, _| {
2266 for server_state in this.language_servers.values() {
2267 if let LanguageServerState::Running { server, .. } = server_state {
2268 server
2269 .notify::<lsp::notification::DidChangeConfiguration>(
2270 lsp::DidChangeConfigurationParams {
2271 settings: workspace_config.clone(),
2272 },
2273 )
2274 .ok();
2275 }
2276 }
2277 })
2278 } else {
2279 break;
2280 }
2281 }
2282
2283 drop(settings_observation);
2284 })
2285 }
2286
2287 fn detect_language_for_buffer(
2288 &mut self,
2289 buffer_handle: &ModelHandle<Buffer>,
2290 cx: &mut ModelContext<Self>,
2291 ) -> Option<()> {
2292 // If the buffer has a language, set it and start the language server if we haven't already.
2293 let buffer = buffer_handle.read(cx);
2294 let full_path = buffer.file()?.full_path(cx);
2295 let content = buffer.as_rope();
2296 let new_language = self
2297 .languages
2298 .language_for_file(&full_path, Some(content))
2299 .now_or_never()?
2300 .ok()?;
2301 self.set_language_for_buffer(buffer_handle, new_language, cx);
2302 None
2303 }
2304
2305 pub fn set_language_for_buffer(
2306 &mut self,
2307 buffer: &ModelHandle<Buffer>,
2308 new_language: Arc<Language>,
2309 cx: &mut ModelContext<Self>,
2310 ) {
2311 buffer.update(cx, |buffer, cx| {
2312 if buffer.language().map_or(true, |old_language| {
2313 !Arc::ptr_eq(old_language, &new_language)
2314 }) {
2315 buffer.set_language(Some(new_language.clone()), cx);
2316 }
2317 });
2318
2319 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
2320 if let Some(worktree) = file.worktree.read(cx).as_local() {
2321 let worktree_id = worktree.id();
2322 let worktree_abs_path = worktree.abs_path().clone();
2323 self.start_language_servers(worktree_id, worktree_abs_path, new_language, cx);
2324 }
2325 }
2326 }
2327
2328 fn start_language_servers(
2329 &mut self,
2330 worktree_id: WorktreeId,
2331 worktree_path: Arc<Path>,
2332 language: Arc<Language>,
2333 cx: &mut ModelContext<Self>,
2334 ) {
2335 if !language_settings(Some(&language.name()), cx).enable_language_server {
2336 return;
2337 }
2338
2339 for adapter in language.lsp_adapters() {
2340 let key = (worktree_id, adapter.name.clone());
2341 if self.language_server_ids.contains_key(&key) {
2342 continue;
2343 }
2344
2345 let pending_server = match self.languages.start_language_server(
2346 language.clone(),
2347 adapter.clone(),
2348 worktree_path.clone(),
2349 self.client.http_client(),
2350 cx,
2351 ) {
2352 Some(pending_server) => pending_server,
2353 None => continue,
2354 };
2355
2356 let lsp = settings::get::<ProjectSettings>(cx)
2357 .lsp
2358 .get(&adapter.name.0);
2359 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
2360
2361 let mut initialization_options = adapter.initialization_options.clone();
2362 match (&mut initialization_options, override_options) {
2363 (Some(initialization_options), Some(override_options)) => {
2364 merge_json_value_into(override_options, initialization_options);
2365 }
2366 (None, override_options) => initialization_options = override_options,
2367 _ => {}
2368 }
2369
2370 let server_id = pending_server.server_id;
2371 let state = self.setup_pending_language_server(
2372 initialization_options,
2373 pending_server,
2374 adapter.clone(),
2375 language.clone(),
2376 key.clone(),
2377 cx,
2378 );
2379 self.language_servers.insert(server_id, state);
2380 self.language_server_ids.insert(key.clone(), server_id);
2381 }
2382 }
2383
2384 fn setup_pending_language_server(
2385 &mut self,
2386 initialization_options: Option<serde_json::Value>,
2387 pending_server: PendingLanguageServer,
2388 adapter: Arc<CachedLspAdapter>,
2389 language: Arc<Language>,
2390 key: (WorktreeId, LanguageServerName),
2391 cx: &mut ModelContext<Project>,
2392 ) -> LanguageServerState {
2393 let server_id = pending_server.server_id;
2394 let languages = self.languages.clone();
2395
2396 LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
2397 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2398 let language_server = pending_server.task.await.log_err()?;
2399 let language_server = language_server
2400 .initialize(initialization_options)
2401 .await
2402 .log_err()?;
2403 let this = this.upgrade(&cx)?;
2404
2405 language_server
2406 .on_notification::<lsp::notification::PublishDiagnostics, _>({
2407 let this = this.downgrade();
2408 let adapter = adapter.clone();
2409 move |mut params, cx| {
2410 let this = this;
2411 let adapter = adapter.clone();
2412 cx.spawn(|mut cx| async move {
2413 adapter.process_diagnostics(&mut params).await;
2414 if let Some(this) = this.upgrade(&cx) {
2415 this.update(&mut cx, |this, cx| {
2416 this.update_diagnostics(
2417 server_id,
2418 params,
2419 &adapter.disk_based_diagnostic_sources,
2420 cx,
2421 )
2422 .log_err();
2423 });
2424 }
2425 })
2426 .detach();
2427 }
2428 })
2429 .detach();
2430
2431 language_server
2432 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2433 let languages = languages.clone();
2434 move |params, mut cx| {
2435 let languages = languages.clone();
2436 async move {
2437 let workspace_config =
2438 cx.update(|cx| languages.workspace_configuration(cx)).await;
2439 Ok(params
2440 .items
2441 .into_iter()
2442 .map(|item| {
2443 if let Some(section) = &item.section {
2444 workspace_config
2445 .get(section)
2446 .cloned()
2447 .unwrap_or(serde_json::Value::Null)
2448 } else {
2449 workspace_config.clone()
2450 }
2451 })
2452 .collect())
2453 }
2454 }
2455 })
2456 .detach();
2457
2458 // Even though we don't have handling for these requests, respond to them to
2459 // avoid stalling any language server like `gopls` which waits for a response
2460 // to these requests when initializing.
2461 language_server
2462 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
2463 let this = this.downgrade();
2464 move |params, mut cx| async move {
2465 if let Some(this) = this.upgrade(&cx) {
2466 this.update(&mut cx, |this, _| {
2467 if let Some(status) =
2468 this.language_server_statuses.get_mut(&server_id)
2469 {
2470 if let lsp::NumberOrString::String(token) = params.token {
2471 status.progress_tokens.insert(token);
2472 }
2473 }
2474 });
2475 }
2476 Ok(())
2477 }
2478 })
2479 .detach();
2480 language_server
2481 .on_request::<lsp::request::RegisterCapability, _, _>({
2482 let this = this.downgrade();
2483 move |params, mut cx| async move {
2484 let this = this
2485 .upgrade(&cx)
2486 .ok_or_else(|| anyhow!("project dropped"))?;
2487 for reg in params.registrations {
2488 if reg.method == "workspace/didChangeWatchedFiles" {
2489 if let Some(options) = reg.register_options {
2490 let options = serde_json::from_value(options)?;
2491 this.update(&mut cx, |this, cx| {
2492 this.on_lsp_did_change_watched_files(
2493 server_id, options, cx,
2494 );
2495 });
2496 }
2497 }
2498 }
2499 Ok(())
2500 }
2501 })
2502 .detach();
2503
2504 language_server
2505 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2506 let this = this.downgrade();
2507 let adapter = adapter.clone();
2508 let language_server = language_server.clone();
2509 move |params, cx| {
2510 Self::on_lsp_workspace_edit(
2511 this,
2512 params,
2513 server_id,
2514 adapter.clone(),
2515 language_server.clone(),
2516 cx,
2517 )
2518 }
2519 })
2520 .detach();
2521
2522 let disk_based_diagnostics_progress_token =
2523 adapter.disk_based_diagnostics_progress_token.clone();
2524
2525 language_server
2526 .on_notification::<lsp::notification::Progress, _>({
2527 let this = this.downgrade();
2528 move |params, mut cx| {
2529 if let Some(this) = this.upgrade(&cx) {
2530 this.update(&mut cx, |this, cx| {
2531 this.on_lsp_progress(
2532 params,
2533 server_id,
2534 disk_based_diagnostics_progress_token.clone(),
2535 cx,
2536 );
2537 });
2538 }
2539 }
2540 })
2541 .detach();
2542
2543 language_server
2544 .notify::<lsp::notification::DidChangeConfiguration>(
2545 lsp::DidChangeConfigurationParams {
2546 settings: workspace_config,
2547 },
2548 )
2549 .ok();
2550
2551 this.update(&mut cx, |this, cx| {
2552 // If the language server for this key doesn't match the server id, don't store the
2553 // server. Which will cause it to be dropped, killing the process
2554 if this
2555 .language_server_ids
2556 .get(&key)
2557 .map(|id| id != &server_id)
2558 .unwrap_or(false)
2559 {
2560 return None;
2561 }
2562
2563 // Update language_servers collection with Running variant of LanguageServerState
2564 // indicating that the server is up and running and ready
2565 this.language_servers.insert(
2566 server_id,
2567 LanguageServerState::Running {
2568 adapter: adapter.clone(),
2569 language: language.clone(),
2570 watched_paths: Default::default(),
2571 server: language_server.clone(),
2572 simulate_disk_based_diagnostics_completion: None,
2573 },
2574 );
2575 this.language_server_statuses.insert(
2576 server_id,
2577 LanguageServerStatus {
2578 name: language_server.name().to_string(),
2579 pending_work: Default::default(),
2580 has_pending_diagnostic_updates: false,
2581 progress_tokens: Default::default(),
2582 },
2583 );
2584
2585 if let Some(project_id) = this.remote_id() {
2586 this.client
2587 .send(proto::StartLanguageServer {
2588 project_id,
2589 server: Some(proto::LanguageServer {
2590 id: server_id.0 as u64,
2591 name: language_server.name().to_string(),
2592 }),
2593 })
2594 .log_err();
2595 }
2596
2597 // Tell the language server about every open buffer in the worktree that matches the language.
2598 for buffer in this.opened_buffers.values() {
2599 if let Some(buffer_handle) = buffer.upgrade(cx) {
2600 let buffer = buffer_handle.read(cx);
2601 let file = match File::from_dyn(buffer.file()) {
2602 Some(file) => file,
2603 None => continue,
2604 };
2605 let language = match buffer.language() {
2606 Some(language) => language,
2607 None => continue,
2608 };
2609
2610 if file.worktree.read(cx).id() != key.0
2611 || !language.lsp_adapters().iter().any(|a| a.name == key.1)
2612 {
2613 continue;
2614 }
2615
2616 let file = file.as_local()?;
2617 let versions = this
2618 .buffer_snapshots
2619 .entry(buffer.remote_id())
2620 .or_default()
2621 .entry(server_id)
2622 .or_insert_with(|| {
2623 vec![LspBufferSnapshot {
2624 version: 0,
2625 snapshot: buffer.text_snapshot(),
2626 }]
2627 });
2628
2629 let snapshot = versions.last().unwrap();
2630 let version = snapshot.version;
2631 let initial_snapshot = &snapshot.snapshot;
2632 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2633 language_server
2634 .notify::<lsp::notification::DidOpenTextDocument>(
2635 lsp::DidOpenTextDocumentParams {
2636 text_document: lsp::TextDocumentItem::new(
2637 uri,
2638 adapter
2639 .language_ids
2640 .get(language.name().as_ref())
2641 .cloned()
2642 .unwrap_or_default(),
2643 version,
2644 initial_snapshot.text(),
2645 ),
2646 },
2647 )
2648 .log_err()?;
2649 buffer_handle.update(cx, |buffer, cx| {
2650 buffer.set_completion_triggers(
2651 language_server
2652 .capabilities()
2653 .completion_provider
2654 .as_ref()
2655 .and_then(|provider| provider.trigger_characters.clone())
2656 .unwrap_or_default(),
2657 cx,
2658 )
2659 });
2660 }
2661 }
2662
2663 cx.notify();
2664 Some(language_server)
2665 })
2666 }))
2667 }
2668
2669 // Returns a list of all of the worktrees which no longer have a language server and the root path
2670 // for the stopped server
2671 fn stop_language_server(
2672 &mut self,
2673 worktree_id: WorktreeId,
2674 adapter_name: LanguageServerName,
2675 cx: &mut ModelContext<Self>,
2676 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
2677 let key = (worktree_id, adapter_name);
2678 if let Some(server_id) = self.language_server_ids.remove(&key) {
2679 // Remove other entries for this language server as well
2680 let mut orphaned_worktrees = vec![worktree_id];
2681 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
2682 for other_key in other_keys {
2683 if self.language_server_ids.get(&other_key) == Some(&server_id) {
2684 self.language_server_ids.remove(&other_key);
2685 orphaned_worktrees.push(other_key.0);
2686 }
2687 }
2688
2689 for buffer in self.opened_buffers.values() {
2690 if let Some(buffer) = buffer.upgrade(cx) {
2691 buffer.update(cx, |buffer, cx| {
2692 buffer.update_diagnostics(server_id, Default::default(), cx);
2693 });
2694 }
2695 }
2696 for worktree in &self.worktrees {
2697 if let Some(worktree) = worktree.upgrade(cx) {
2698 worktree.update(cx, |worktree, cx| {
2699 if let Some(worktree) = worktree.as_local_mut() {
2700 worktree.clear_diagnostics_for_language_server(server_id, cx);
2701 }
2702 });
2703 }
2704 }
2705
2706 self.language_server_statuses.remove(&server_id);
2707 cx.notify();
2708
2709 let server_state = self.language_servers.remove(&server_id);
2710 cx.spawn_weak(|this, mut cx| async move {
2711 let mut root_path = None;
2712
2713 let server = match server_state {
2714 Some(LanguageServerState::Starting(started_language_server)) => {
2715 started_language_server.await
2716 }
2717 Some(LanguageServerState::Running { server, .. }) => Some(server),
2718 None => None,
2719 };
2720
2721 if let Some(server) = server {
2722 root_path = Some(server.root_path().clone());
2723 if let Some(shutdown) = server.shutdown() {
2724 shutdown.await;
2725 }
2726 }
2727
2728 if let Some(this) = this.upgrade(&cx) {
2729 this.update(&mut cx, |this, cx| {
2730 this.language_server_statuses.remove(&server_id);
2731 cx.notify();
2732 });
2733 }
2734
2735 (root_path, orphaned_worktrees)
2736 })
2737 } else {
2738 Task::ready((None, Vec::new()))
2739 }
2740 }
2741
2742 pub fn restart_language_servers_for_buffers(
2743 &mut self,
2744 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2745 cx: &mut ModelContext<Self>,
2746 ) -> Option<()> {
2747 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, Arc<Language>)> = buffers
2748 .into_iter()
2749 .filter_map(|buffer| {
2750 let buffer = buffer.read(cx);
2751 let file = File::from_dyn(buffer.file())?;
2752 let worktree = file.worktree.read(cx).as_local()?;
2753 let full_path = file.full_path(cx);
2754 let language = self
2755 .languages
2756 .language_for_file(&full_path, Some(buffer.as_rope()))
2757 .now_or_never()?
2758 .ok()?;
2759 Some((worktree.id(), worktree.abs_path().clone(), language))
2760 })
2761 .collect();
2762 for (worktree_id, worktree_abs_path, language) in language_server_lookup_info {
2763 self.restart_language_servers(worktree_id, worktree_abs_path, language, cx);
2764 }
2765
2766 None
2767 }
2768
2769 // TODO This will break in the case where the adapter's root paths and worktrees are not equal
2770 fn restart_language_servers(
2771 &mut self,
2772 worktree_id: WorktreeId,
2773 fallback_path: Arc<Path>,
2774 language: Arc<Language>,
2775 cx: &mut ModelContext<Self>,
2776 ) {
2777 let mut stops = Vec::new();
2778 for adapter in language.lsp_adapters() {
2779 stops.push(self.stop_language_server(worktree_id, adapter.name.clone(), cx));
2780 }
2781
2782 if stops.is_empty() {
2783 return;
2784 }
2785 let mut stops = stops.into_iter();
2786
2787 cx.spawn_weak(|this, mut cx| async move {
2788 let (original_root_path, mut orphaned_worktrees) = stops.next().unwrap().await;
2789 for stop in stops {
2790 let (_, worktrees) = stop.await;
2791 orphaned_worktrees.extend_from_slice(&worktrees);
2792 }
2793
2794 let this = match this.upgrade(&cx) {
2795 Some(this) => this,
2796 None => return,
2797 };
2798
2799 this.update(&mut cx, |this, cx| {
2800 // Attempt to restart using original server path. Fallback to passed in
2801 // path if we could not retrieve the root path
2802 let root_path = original_root_path
2803 .map(|path_buf| Arc::from(path_buf.as_path()))
2804 .unwrap_or(fallback_path);
2805
2806 this.start_language_servers(worktree_id, root_path, language.clone(), cx);
2807
2808 // Lookup new server ids and set them for each of the orphaned worktrees
2809 for adapter in language.lsp_adapters() {
2810 if let Some(new_server_id) = this
2811 .language_server_ids
2812 .get(&(worktree_id, adapter.name.clone()))
2813 .cloned()
2814 {
2815 for &orphaned_worktree in &orphaned_worktrees {
2816 this.language_server_ids
2817 .insert((orphaned_worktree, adapter.name.clone()), new_server_id);
2818 }
2819 }
2820 }
2821 });
2822 })
2823 .detach();
2824 }
2825
2826 fn on_lsp_progress(
2827 &mut self,
2828 progress: lsp::ProgressParams,
2829 language_server_id: LanguageServerId,
2830 disk_based_diagnostics_progress_token: Option<String>,
2831 cx: &mut ModelContext<Self>,
2832 ) {
2833 let token = match progress.token {
2834 lsp::NumberOrString::String(token) => token,
2835 lsp::NumberOrString::Number(token) => {
2836 log::info!("skipping numeric progress token {}", token);
2837 return;
2838 }
2839 };
2840 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
2841 let language_server_status =
2842 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2843 status
2844 } else {
2845 return;
2846 };
2847
2848 if !language_server_status.progress_tokens.contains(&token) {
2849 return;
2850 }
2851
2852 let is_disk_based_diagnostics_progress = disk_based_diagnostics_progress_token
2853 .as_ref()
2854 .map_or(false, |disk_based_token| {
2855 token.starts_with(disk_based_token)
2856 });
2857
2858 match progress {
2859 lsp::WorkDoneProgress::Begin(report) => {
2860 if is_disk_based_diagnostics_progress {
2861 language_server_status.has_pending_diagnostic_updates = true;
2862 self.disk_based_diagnostics_started(language_server_id, cx);
2863 self.buffer_ordered_messages_tx
2864 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2865 language_server_id,
2866 message: proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(Default::default())
2867 })
2868 .ok();
2869 } else {
2870 self.on_lsp_work_start(
2871 language_server_id,
2872 token.clone(),
2873 LanguageServerProgress {
2874 message: report.message.clone(),
2875 percentage: report.percentage.map(|p| p as usize),
2876 last_update_at: Instant::now(),
2877 },
2878 cx,
2879 );
2880 self.buffer_ordered_messages_tx
2881 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2882 language_server_id,
2883 message: proto::update_language_server::Variant::WorkStart(
2884 proto::LspWorkStart {
2885 token,
2886 message: report.message,
2887 percentage: report.percentage.map(|p| p as u32),
2888 },
2889 ),
2890 })
2891 .ok();
2892 }
2893 }
2894 lsp::WorkDoneProgress::Report(report) => {
2895 if !is_disk_based_diagnostics_progress {
2896 self.on_lsp_work_progress(
2897 language_server_id,
2898 token.clone(),
2899 LanguageServerProgress {
2900 message: report.message.clone(),
2901 percentage: report.percentage.map(|p| p as usize),
2902 last_update_at: Instant::now(),
2903 },
2904 cx,
2905 );
2906 self.buffer_ordered_messages_tx
2907 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2908 language_server_id,
2909 message: proto::update_language_server::Variant::WorkProgress(
2910 proto::LspWorkProgress {
2911 token,
2912 message: report.message,
2913 percentage: report.percentage.map(|p| p as u32),
2914 },
2915 ),
2916 })
2917 .ok();
2918 }
2919 }
2920 lsp::WorkDoneProgress::End(_) => {
2921 language_server_status.progress_tokens.remove(&token);
2922
2923 if is_disk_based_diagnostics_progress {
2924 language_server_status.has_pending_diagnostic_updates = false;
2925 self.disk_based_diagnostics_finished(language_server_id, cx);
2926 self.buffer_ordered_messages_tx
2927 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2928 language_server_id,
2929 message:
2930 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2931 Default::default(),
2932 ),
2933 })
2934 .ok();
2935 } else {
2936 self.on_lsp_work_end(language_server_id, token.clone(), cx);
2937 self.buffer_ordered_messages_tx
2938 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
2939 language_server_id,
2940 message: proto::update_language_server::Variant::WorkEnd(
2941 proto::LspWorkEnd { token },
2942 ),
2943 })
2944 .ok();
2945 }
2946 }
2947 }
2948 }
2949
2950 fn on_lsp_work_start(
2951 &mut self,
2952 language_server_id: LanguageServerId,
2953 token: String,
2954 progress: LanguageServerProgress,
2955 cx: &mut ModelContext<Self>,
2956 ) {
2957 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2958 status.pending_work.insert(token, progress);
2959 cx.notify();
2960 }
2961 }
2962
2963 fn on_lsp_work_progress(
2964 &mut self,
2965 language_server_id: LanguageServerId,
2966 token: String,
2967 progress: LanguageServerProgress,
2968 cx: &mut ModelContext<Self>,
2969 ) {
2970 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2971 let entry = status
2972 .pending_work
2973 .entry(token)
2974 .or_insert(LanguageServerProgress {
2975 message: Default::default(),
2976 percentage: Default::default(),
2977 last_update_at: progress.last_update_at,
2978 });
2979 if progress.message.is_some() {
2980 entry.message = progress.message;
2981 }
2982 if progress.percentage.is_some() {
2983 entry.percentage = progress.percentage;
2984 }
2985 entry.last_update_at = progress.last_update_at;
2986 cx.notify();
2987 }
2988 }
2989
2990 fn on_lsp_work_end(
2991 &mut self,
2992 language_server_id: LanguageServerId,
2993 token: String,
2994 cx: &mut ModelContext<Self>,
2995 ) {
2996 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2997 status.pending_work.remove(&token);
2998 cx.notify();
2999 }
3000 }
3001
3002 fn on_lsp_did_change_watched_files(
3003 &mut self,
3004 language_server_id: LanguageServerId,
3005 params: DidChangeWatchedFilesRegistrationOptions,
3006 cx: &mut ModelContext<Self>,
3007 ) {
3008 if let Some(LanguageServerState::Running { watched_paths, .. }) =
3009 self.language_servers.get_mut(&language_server_id)
3010 {
3011 let mut builders = HashMap::default();
3012 for watcher in params.watchers {
3013 for worktree in &self.worktrees {
3014 if let Some(worktree) = worktree.upgrade(cx) {
3015 let worktree = worktree.read(cx);
3016 if let Some(abs_path) = worktree.abs_path().to_str() {
3017 if let Some(suffix) = watcher
3018 .glob_pattern
3019 .strip_prefix(abs_path)
3020 .and_then(|s| s.strip_prefix(std::path::MAIN_SEPARATOR))
3021 {
3022 if let Some(glob) = Glob::new(suffix).log_err() {
3023 builders
3024 .entry(worktree.id())
3025 .or_insert_with(|| GlobSetBuilder::new())
3026 .add(glob);
3027 }
3028 break;
3029 }
3030 }
3031 }
3032 }
3033 }
3034
3035 watched_paths.clear();
3036 for (worktree_id, builder) in builders {
3037 if let Ok(globset) = builder.build() {
3038 watched_paths.insert(worktree_id, globset);
3039 }
3040 }
3041
3042 cx.notify();
3043 }
3044 }
3045
3046 async fn on_lsp_workspace_edit(
3047 this: WeakModelHandle<Self>,
3048 params: lsp::ApplyWorkspaceEditParams,
3049 server_id: LanguageServerId,
3050 adapter: Arc<CachedLspAdapter>,
3051 language_server: Arc<LanguageServer>,
3052 mut cx: AsyncAppContext,
3053 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
3054 let this = this
3055 .upgrade(&cx)
3056 .ok_or_else(|| anyhow!("project project closed"))?;
3057 let transaction = Self::deserialize_workspace_edit(
3058 this.clone(),
3059 params.edit,
3060 true,
3061 adapter.clone(),
3062 language_server.clone(),
3063 &mut cx,
3064 )
3065 .await
3066 .log_err();
3067 this.update(&mut cx, |this, _| {
3068 if let Some(transaction) = transaction {
3069 this.last_workspace_edits_by_language_server
3070 .insert(server_id, transaction);
3071 }
3072 });
3073 Ok(lsp::ApplyWorkspaceEditResponse {
3074 applied: true,
3075 failed_change: None,
3076 failure_reason: None,
3077 })
3078 }
3079
3080 pub fn language_server_statuses(
3081 &self,
3082 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
3083 self.language_server_statuses.values()
3084 }
3085
3086 pub fn update_diagnostics(
3087 &mut self,
3088 language_server_id: LanguageServerId,
3089 mut params: lsp::PublishDiagnosticsParams,
3090 disk_based_sources: &[String],
3091 cx: &mut ModelContext<Self>,
3092 ) -> Result<()> {
3093 let abs_path = params
3094 .uri
3095 .to_file_path()
3096 .map_err(|_| anyhow!("URI is not a file"))?;
3097 let mut diagnostics = Vec::default();
3098 let mut primary_diagnostic_group_ids = HashMap::default();
3099 let mut sources_by_group_id = HashMap::default();
3100 let mut supporting_diagnostics = HashMap::default();
3101
3102 // Ensure that primary diagnostics are always the most severe
3103 params.diagnostics.sort_by_key(|item| item.severity);
3104
3105 for diagnostic in ¶ms.diagnostics {
3106 let source = diagnostic.source.as_ref();
3107 let code = diagnostic.code.as_ref().map(|code| match code {
3108 lsp::NumberOrString::Number(code) => code.to_string(),
3109 lsp::NumberOrString::String(code) => code.clone(),
3110 });
3111 let range = range_from_lsp(diagnostic.range);
3112 let is_supporting = diagnostic
3113 .related_information
3114 .as_ref()
3115 .map_or(false, |infos| {
3116 infos.iter().any(|info| {
3117 primary_diagnostic_group_ids.contains_key(&(
3118 source,
3119 code.clone(),
3120 range_from_lsp(info.location.range),
3121 ))
3122 })
3123 });
3124
3125 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
3126 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
3127 });
3128
3129 if is_supporting {
3130 supporting_diagnostics.insert(
3131 (source, code.clone(), range),
3132 (diagnostic.severity, is_unnecessary),
3133 );
3134 } else {
3135 let group_id = post_inc(&mut self.next_diagnostic_group_id);
3136 let is_disk_based =
3137 source.map_or(false, |source| disk_based_sources.contains(source));
3138
3139 sources_by_group_id.insert(group_id, source);
3140 primary_diagnostic_group_ids
3141 .insert((source, code.clone(), range.clone()), group_id);
3142
3143 diagnostics.push(DiagnosticEntry {
3144 range,
3145 diagnostic: Diagnostic {
3146 source: diagnostic.source.clone(),
3147 code: code.clone(),
3148 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
3149 message: diagnostic.message.clone(),
3150 group_id,
3151 is_primary: true,
3152 is_valid: true,
3153 is_disk_based,
3154 is_unnecessary,
3155 },
3156 });
3157 if let Some(infos) = &diagnostic.related_information {
3158 for info in infos {
3159 if info.location.uri == params.uri && !info.message.is_empty() {
3160 let range = range_from_lsp(info.location.range);
3161 diagnostics.push(DiagnosticEntry {
3162 range,
3163 diagnostic: Diagnostic {
3164 source: diagnostic.source.clone(),
3165 code: code.clone(),
3166 severity: DiagnosticSeverity::INFORMATION,
3167 message: info.message.clone(),
3168 group_id,
3169 is_primary: false,
3170 is_valid: true,
3171 is_disk_based,
3172 is_unnecessary: false,
3173 },
3174 });
3175 }
3176 }
3177 }
3178 }
3179 }
3180
3181 for entry in &mut diagnostics {
3182 let diagnostic = &mut entry.diagnostic;
3183 if !diagnostic.is_primary {
3184 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
3185 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
3186 source,
3187 diagnostic.code.clone(),
3188 entry.range.clone(),
3189 )) {
3190 if let Some(severity) = severity {
3191 diagnostic.severity = severity;
3192 }
3193 diagnostic.is_unnecessary = is_unnecessary;
3194 }
3195 }
3196 }
3197
3198 self.update_diagnostic_entries(
3199 language_server_id,
3200 abs_path,
3201 params.version,
3202 diagnostics,
3203 cx,
3204 )?;
3205 Ok(())
3206 }
3207
3208 pub fn update_diagnostic_entries(
3209 &mut self,
3210 server_id: LanguageServerId,
3211 abs_path: PathBuf,
3212 version: Option<i32>,
3213 diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3214 cx: &mut ModelContext<Project>,
3215 ) -> Result<(), anyhow::Error> {
3216 let (worktree, relative_path) = self
3217 .find_local_worktree(&abs_path, cx)
3218 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
3219
3220 let project_path = ProjectPath {
3221 worktree_id: worktree.read(cx).id(),
3222 path: relative_path.into(),
3223 };
3224
3225 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
3226 self.update_buffer_diagnostics(&buffer, server_id, version, diagnostics.clone(), cx)?;
3227 }
3228
3229 let updated = worktree.update(cx, |worktree, cx| {
3230 worktree
3231 .as_local_mut()
3232 .ok_or_else(|| anyhow!("not a local worktree"))?
3233 .update_diagnostics(server_id, project_path.path.clone(), diagnostics, cx)
3234 })?;
3235 if updated {
3236 cx.emit(Event::DiagnosticsUpdated {
3237 language_server_id: server_id,
3238 path: project_path,
3239 });
3240 }
3241 Ok(())
3242 }
3243
3244 fn update_buffer_diagnostics(
3245 &mut self,
3246 buffer: &ModelHandle<Buffer>,
3247 server_id: LanguageServerId,
3248 version: Option<i32>,
3249 mut diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3250 cx: &mut ModelContext<Self>,
3251 ) -> Result<()> {
3252 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
3253 Ordering::Equal
3254 .then_with(|| b.is_primary.cmp(&a.is_primary))
3255 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
3256 .then_with(|| a.severity.cmp(&b.severity))
3257 .then_with(|| a.message.cmp(&b.message))
3258 }
3259
3260 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx)?;
3261
3262 diagnostics.sort_unstable_by(|a, b| {
3263 Ordering::Equal
3264 .then_with(|| a.range.start.cmp(&b.range.start))
3265 .then_with(|| b.range.end.cmp(&a.range.end))
3266 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
3267 });
3268
3269 let mut sanitized_diagnostics = Vec::new();
3270 let edits_since_save = Patch::new(
3271 snapshot
3272 .edits_since::<Unclipped<PointUtf16>>(buffer.read(cx).saved_version())
3273 .collect(),
3274 );
3275 for entry in diagnostics {
3276 let start;
3277 let end;
3278 if entry.diagnostic.is_disk_based {
3279 // Some diagnostics are based on files on disk instead of buffers'
3280 // current contents. Adjust these diagnostics' ranges to reflect
3281 // any unsaved edits.
3282 start = edits_since_save.old_to_new(entry.range.start);
3283 end = edits_since_save.old_to_new(entry.range.end);
3284 } else {
3285 start = entry.range.start;
3286 end = entry.range.end;
3287 }
3288
3289 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
3290 ..snapshot.clip_point_utf16(end, Bias::Right);
3291
3292 // Expand empty ranges by one codepoint
3293 if range.start == range.end {
3294 // This will be go to the next boundary when being clipped
3295 range.end.column += 1;
3296 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Right);
3297 if range.start == range.end && range.end.column > 0 {
3298 range.start.column -= 1;
3299 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Left);
3300 }
3301 }
3302
3303 sanitized_diagnostics.push(DiagnosticEntry {
3304 range,
3305 diagnostic: entry.diagnostic,
3306 });
3307 }
3308 drop(edits_since_save);
3309
3310 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
3311 buffer.update(cx, |buffer, cx| {
3312 buffer.update_diagnostics(server_id, set, cx)
3313 });
3314 Ok(())
3315 }
3316
3317 pub fn reload_buffers(
3318 &self,
3319 buffers: HashSet<ModelHandle<Buffer>>,
3320 push_to_history: bool,
3321 cx: &mut ModelContext<Self>,
3322 ) -> Task<Result<ProjectTransaction>> {
3323 let mut local_buffers = Vec::new();
3324 let mut remote_buffers = None;
3325 for buffer_handle in buffers {
3326 let buffer = buffer_handle.read(cx);
3327 if buffer.is_dirty() {
3328 if let Some(file) = File::from_dyn(buffer.file()) {
3329 if file.is_local() {
3330 local_buffers.push(buffer_handle);
3331 } else {
3332 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3333 }
3334 }
3335 }
3336 }
3337
3338 let remote_buffers = self.remote_id().zip(remote_buffers);
3339 let client = self.client.clone();
3340
3341 cx.spawn(|this, mut cx| async move {
3342 let mut project_transaction = ProjectTransaction::default();
3343
3344 if let Some((project_id, remote_buffers)) = remote_buffers {
3345 let response = client
3346 .request(proto::ReloadBuffers {
3347 project_id,
3348 buffer_ids: remote_buffers
3349 .iter()
3350 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3351 .collect(),
3352 })
3353 .await?
3354 .transaction
3355 .ok_or_else(|| anyhow!("missing transaction"))?;
3356 project_transaction = this
3357 .update(&mut cx, |this, cx| {
3358 this.deserialize_project_transaction(response, push_to_history, cx)
3359 })
3360 .await?;
3361 }
3362
3363 for buffer in local_buffers {
3364 let transaction = buffer
3365 .update(&mut cx, |buffer, cx| buffer.reload(cx))
3366 .await?;
3367 buffer.update(&mut cx, |buffer, cx| {
3368 if let Some(transaction) = transaction {
3369 if !push_to_history {
3370 buffer.forget_transaction(transaction.id);
3371 }
3372 project_transaction.0.insert(cx.handle(), transaction);
3373 }
3374 });
3375 }
3376
3377 Ok(project_transaction)
3378 })
3379 }
3380
3381 pub fn format(
3382 &self,
3383 buffers: HashSet<ModelHandle<Buffer>>,
3384 push_to_history: bool,
3385 trigger: FormatTrigger,
3386 cx: &mut ModelContext<Project>,
3387 ) -> Task<Result<ProjectTransaction>> {
3388 if self.is_local() {
3389 let mut buffers_with_paths_and_servers = buffers
3390 .into_iter()
3391 .filter_map(|buffer_handle| {
3392 let buffer = buffer_handle.read(cx);
3393 let file = File::from_dyn(buffer.file())?;
3394 let buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3395 let server = self
3396 .primary_language_servers_for_buffer(buffer, cx)
3397 .map(|s| s.1.clone());
3398 Some((buffer_handle, buffer_abs_path, server))
3399 })
3400 .collect::<Vec<_>>();
3401
3402 cx.spawn(|this, mut cx| async move {
3403 // Do not allow multiple concurrent formatting requests for the
3404 // same buffer.
3405 this.update(&mut cx, |this, cx| {
3406 buffers_with_paths_and_servers.retain(|(buffer, _, _)| {
3407 this.buffers_being_formatted
3408 .insert(buffer.read(cx).remote_id())
3409 });
3410 });
3411
3412 let _cleanup = defer({
3413 let this = this.clone();
3414 let mut cx = cx.clone();
3415 let buffers = &buffers_with_paths_and_servers;
3416 move || {
3417 this.update(&mut cx, |this, cx| {
3418 for (buffer, _, _) in buffers {
3419 this.buffers_being_formatted
3420 .remove(&buffer.read(cx).remote_id());
3421 }
3422 });
3423 }
3424 });
3425
3426 let mut project_transaction = ProjectTransaction::default();
3427 for (buffer, buffer_abs_path, language_server) in &buffers_with_paths_and_servers {
3428 let settings = buffer.read_with(&cx, |buffer, cx| {
3429 let language_name = buffer.language().map(|language| language.name());
3430 language_settings(language_name.as_deref(), cx).clone()
3431 });
3432
3433 let remove_trailing_whitespace = settings.remove_trailing_whitespace_on_save;
3434 let ensure_final_newline = settings.ensure_final_newline_on_save;
3435 let format_on_save = settings.format_on_save.clone();
3436 let formatter = settings.formatter.clone();
3437 let tab_size = settings.tab_size;
3438
3439 // First, format buffer's whitespace according to the settings.
3440 let trailing_whitespace_diff = if remove_trailing_whitespace {
3441 Some(
3442 buffer
3443 .read_with(&cx, |b, cx| b.remove_trailing_whitespace(cx))
3444 .await,
3445 )
3446 } else {
3447 None
3448 };
3449 let whitespace_transaction_id = buffer.update(&mut cx, |buffer, cx| {
3450 buffer.finalize_last_transaction();
3451 buffer.start_transaction();
3452 if let Some(diff) = trailing_whitespace_diff {
3453 buffer.apply_diff(diff, cx);
3454 }
3455 if ensure_final_newline {
3456 buffer.ensure_final_newline(cx);
3457 }
3458 buffer.end_transaction(cx)
3459 });
3460
3461 // Currently, formatting operations are represented differently depending on
3462 // whether they come from a language server or an external command.
3463 enum FormatOperation {
3464 Lsp(Vec<(Range<Anchor>, String)>),
3465 External(Diff),
3466 }
3467
3468 // Apply language-specific formatting using either a language server
3469 // or external command.
3470 let mut format_operation = None;
3471 match (formatter, format_on_save) {
3472 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => {}
3473
3474 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
3475 | (_, FormatOnSave::LanguageServer) => {
3476 if let Some((language_server, buffer_abs_path)) =
3477 language_server.as_ref().zip(buffer_abs_path.as_ref())
3478 {
3479 format_operation = Some(FormatOperation::Lsp(
3480 Self::format_via_lsp(
3481 &this,
3482 &buffer,
3483 buffer_abs_path,
3484 &language_server,
3485 tab_size,
3486 &mut cx,
3487 )
3488 .await
3489 .context("failed to format via language server")?,
3490 ));
3491 }
3492 }
3493
3494 (
3495 Formatter::External { command, arguments },
3496 FormatOnSave::On | FormatOnSave::Off,
3497 )
3498 | (_, FormatOnSave::External { command, arguments }) => {
3499 if let Some(buffer_abs_path) = buffer_abs_path {
3500 format_operation = Self::format_via_external_command(
3501 &buffer,
3502 &buffer_abs_path,
3503 &command,
3504 &arguments,
3505 &mut cx,
3506 )
3507 .await
3508 .context(format!(
3509 "failed to format via external command {:?}",
3510 command
3511 ))?
3512 .map(FormatOperation::External);
3513 }
3514 }
3515 };
3516
3517 buffer.update(&mut cx, |b, cx| {
3518 // If the buffer had its whitespace formatted and was edited while the language-specific
3519 // formatting was being computed, avoid applying the language-specific formatting, because
3520 // it can't be grouped with the whitespace formatting in the undo history.
3521 if let Some(transaction_id) = whitespace_transaction_id {
3522 if b.peek_undo_stack()
3523 .map_or(true, |e| e.transaction_id() != transaction_id)
3524 {
3525 format_operation.take();
3526 }
3527 }
3528
3529 // Apply any language-specific formatting, and group the two formatting operations
3530 // in the buffer's undo history.
3531 if let Some(operation) = format_operation {
3532 match operation {
3533 FormatOperation::Lsp(edits) => {
3534 b.edit(edits, None, cx);
3535 }
3536 FormatOperation::External(diff) => {
3537 b.apply_diff(diff, cx);
3538 }
3539 }
3540
3541 if let Some(transaction_id) = whitespace_transaction_id {
3542 b.group_until_transaction(transaction_id);
3543 }
3544 }
3545
3546 if let Some(transaction) = b.finalize_last_transaction().cloned() {
3547 if !push_to_history {
3548 b.forget_transaction(transaction.id);
3549 }
3550 project_transaction.0.insert(buffer.clone(), transaction);
3551 }
3552 });
3553 }
3554
3555 Ok(project_transaction)
3556 })
3557 } else {
3558 let remote_id = self.remote_id();
3559 let client = self.client.clone();
3560 cx.spawn(|this, mut cx| async move {
3561 let mut project_transaction = ProjectTransaction::default();
3562 if let Some(project_id) = remote_id {
3563 let response = client
3564 .request(proto::FormatBuffers {
3565 project_id,
3566 trigger: trigger as i32,
3567 buffer_ids: buffers
3568 .iter()
3569 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3570 .collect(),
3571 })
3572 .await?
3573 .transaction
3574 .ok_or_else(|| anyhow!("missing transaction"))?;
3575 project_transaction = this
3576 .update(&mut cx, |this, cx| {
3577 this.deserialize_project_transaction(response, push_to_history, cx)
3578 })
3579 .await?;
3580 }
3581 Ok(project_transaction)
3582 })
3583 }
3584 }
3585
3586 async fn format_via_lsp(
3587 this: &ModelHandle<Self>,
3588 buffer: &ModelHandle<Buffer>,
3589 abs_path: &Path,
3590 language_server: &Arc<LanguageServer>,
3591 tab_size: NonZeroU32,
3592 cx: &mut AsyncAppContext,
3593 ) -> Result<Vec<(Range<Anchor>, String)>> {
3594 let text_document =
3595 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(abs_path).unwrap());
3596 let capabilities = &language_server.capabilities();
3597 let lsp_edits = if capabilities
3598 .document_formatting_provider
3599 .as_ref()
3600 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3601 {
3602 language_server
3603 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
3604 text_document,
3605 options: lsp_command::lsp_formatting_options(tab_size.get()),
3606 work_done_progress_params: Default::default(),
3607 })
3608 .await?
3609 } else if capabilities
3610 .document_range_formatting_provider
3611 .as_ref()
3612 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3613 {
3614 let buffer_start = lsp::Position::new(0, 0);
3615 let buffer_end =
3616 buffer.read_with(cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
3617 language_server
3618 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
3619 text_document,
3620 range: lsp::Range::new(buffer_start, buffer_end),
3621 options: lsp_command::lsp_formatting_options(tab_size.get()),
3622 work_done_progress_params: Default::default(),
3623 })
3624 .await?
3625 } else {
3626 None
3627 };
3628
3629 if let Some(lsp_edits) = lsp_edits {
3630 this.update(cx, |this, cx| {
3631 this.edits_from_lsp(buffer, lsp_edits, language_server.server_id(), None, cx)
3632 })
3633 .await
3634 } else {
3635 Ok(Default::default())
3636 }
3637 }
3638
3639 async fn format_via_external_command(
3640 buffer: &ModelHandle<Buffer>,
3641 buffer_abs_path: &Path,
3642 command: &str,
3643 arguments: &[String],
3644 cx: &mut AsyncAppContext,
3645 ) -> Result<Option<Diff>> {
3646 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
3647 let file = File::from_dyn(buffer.file())?;
3648 let worktree = file.worktree.read(cx).as_local()?;
3649 let mut worktree_path = worktree.abs_path().to_path_buf();
3650 if worktree.root_entry()?.is_file() {
3651 worktree_path.pop();
3652 }
3653 Some(worktree_path)
3654 });
3655
3656 if let Some(working_dir_path) = working_dir_path {
3657 let mut child =
3658 smol::process::Command::new(command)
3659 .args(arguments.iter().map(|arg| {
3660 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
3661 }))
3662 .current_dir(&working_dir_path)
3663 .stdin(smol::process::Stdio::piped())
3664 .stdout(smol::process::Stdio::piped())
3665 .stderr(smol::process::Stdio::piped())
3666 .spawn()?;
3667 let stdin = child
3668 .stdin
3669 .as_mut()
3670 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
3671 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
3672 for chunk in text.chunks() {
3673 stdin.write_all(chunk.as_bytes()).await?;
3674 }
3675 stdin.flush().await?;
3676
3677 let output = child.output().await?;
3678 if !output.status.success() {
3679 return Err(anyhow!(
3680 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
3681 output.status.code(),
3682 String::from_utf8_lossy(&output.stdout),
3683 String::from_utf8_lossy(&output.stderr),
3684 ));
3685 }
3686
3687 let stdout = String::from_utf8(output.stdout)?;
3688 Ok(Some(
3689 buffer
3690 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
3691 .await,
3692 ))
3693 } else {
3694 Ok(None)
3695 }
3696 }
3697
3698 pub fn definition<T: ToPointUtf16>(
3699 &self,
3700 buffer: &ModelHandle<Buffer>,
3701 position: T,
3702 cx: &mut ModelContext<Self>,
3703 ) -> Task<Result<Vec<LocationLink>>> {
3704 let position = position.to_point_utf16(buffer.read(cx));
3705 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
3706 }
3707
3708 pub fn type_definition<T: ToPointUtf16>(
3709 &self,
3710 buffer: &ModelHandle<Buffer>,
3711 position: T,
3712 cx: &mut ModelContext<Self>,
3713 ) -> Task<Result<Vec<LocationLink>>> {
3714 let position = position.to_point_utf16(buffer.read(cx));
3715 self.request_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
3716 }
3717
3718 pub fn references<T: ToPointUtf16>(
3719 &self,
3720 buffer: &ModelHandle<Buffer>,
3721 position: T,
3722 cx: &mut ModelContext<Self>,
3723 ) -> Task<Result<Vec<Location>>> {
3724 let position = position.to_point_utf16(buffer.read(cx));
3725 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
3726 }
3727
3728 pub fn document_highlights<T: ToPointUtf16>(
3729 &self,
3730 buffer: &ModelHandle<Buffer>,
3731 position: T,
3732 cx: &mut ModelContext<Self>,
3733 ) -> Task<Result<Vec<DocumentHighlight>>> {
3734 let position = position.to_point_utf16(buffer.read(cx));
3735 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
3736 }
3737
3738 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
3739 if self.is_local() {
3740 let mut requests = Vec::new();
3741 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
3742 let worktree_id = *worktree_id;
3743 if let Some(worktree) = self
3744 .worktree_for_id(worktree_id, cx)
3745 .and_then(|worktree| worktree.read(cx).as_local())
3746 {
3747 if let Some(LanguageServerState::Running {
3748 adapter,
3749 language,
3750 server,
3751 ..
3752 }) = self.language_servers.get(server_id)
3753 {
3754 let adapter = adapter.clone();
3755 let language = language.clone();
3756 let worktree_abs_path = worktree.abs_path().clone();
3757 requests.push(
3758 server
3759 .request::<lsp::request::WorkspaceSymbol>(
3760 lsp::WorkspaceSymbolParams {
3761 query: query.to_string(),
3762 ..Default::default()
3763 },
3764 )
3765 .log_err()
3766 .map(move |response| {
3767 (
3768 adapter,
3769 language,
3770 worktree_id,
3771 worktree_abs_path,
3772 response.unwrap_or_default(),
3773 )
3774 }),
3775 );
3776 }
3777 }
3778 }
3779
3780 cx.spawn_weak(|this, cx| async move {
3781 let responses = futures::future::join_all(requests).await;
3782 let this = if let Some(this) = this.upgrade(&cx) {
3783 this
3784 } else {
3785 return Ok(Default::default());
3786 };
3787 let symbols = this.read_with(&cx, |this, cx| {
3788 let mut symbols = Vec::new();
3789 for (
3790 adapter,
3791 adapter_language,
3792 source_worktree_id,
3793 worktree_abs_path,
3794 response,
3795 ) in responses
3796 {
3797 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3798 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3799 let mut worktree_id = source_worktree_id;
3800 let path;
3801 if let Some((worktree, rel_path)) =
3802 this.find_local_worktree(&abs_path, cx)
3803 {
3804 worktree_id = worktree.read(cx).id();
3805 path = rel_path;
3806 } else {
3807 path = relativize_path(&worktree_abs_path, &abs_path);
3808 }
3809
3810 let project_path = ProjectPath {
3811 worktree_id,
3812 path: path.into(),
3813 };
3814 let signature = this.symbol_signature(&project_path);
3815 let adapter_language = adapter_language.clone();
3816 let language = this
3817 .languages
3818 .language_for_file(&project_path.path, None)
3819 .unwrap_or_else(move |_| adapter_language);
3820 let language_server_name = adapter.name.clone();
3821 Some(async move {
3822 let language = language.await;
3823 let label = language
3824 .label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3825 .await;
3826
3827 Symbol {
3828 language_server_name,
3829 source_worktree_id,
3830 path: project_path,
3831 label: label.unwrap_or_else(|| {
3832 CodeLabel::plain(lsp_symbol.name.clone(), None)
3833 }),
3834 kind: lsp_symbol.kind,
3835 name: lsp_symbol.name,
3836 range: range_from_lsp(lsp_symbol.location.range),
3837 signature,
3838 }
3839 })
3840 }));
3841 }
3842 symbols
3843 });
3844 Ok(futures::future::join_all(symbols).await)
3845 })
3846 } else if let Some(project_id) = self.remote_id() {
3847 let request = self.client.request(proto::GetProjectSymbols {
3848 project_id,
3849 query: query.to_string(),
3850 });
3851 cx.spawn_weak(|this, cx| async move {
3852 let response = request.await?;
3853 let mut symbols = Vec::new();
3854 if let Some(this) = this.upgrade(&cx) {
3855 let new_symbols = this.read_with(&cx, |this, _| {
3856 response
3857 .symbols
3858 .into_iter()
3859 .map(|symbol| this.deserialize_symbol(symbol))
3860 .collect::<Vec<_>>()
3861 });
3862 symbols = futures::future::join_all(new_symbols)
3863 .await
3864 .into_iter()
3865 .filter_map(|symbol| symbol.log_err())
3866 .collect::<Vec<_>>();
3867 }
3868 Ok(symbols)
3869 })
3870 } else {
3871 Task::ready(Ok(Default::default()))
3872 }
3873 }
3874
3875 pub fn open_buffer_for_symbol(
3876 &mut self,
3877 symbol: &Symbol,
3878 cx: &mut ModelContext<Self>,
3879 ) -> Task<Result<ModelHandle<Buffer>>> {
3880 if self.is_local() {
3881 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
3882 symbol.source_worktree_id,
3883 symbol.language_server_name.clone(),
3884 )) {
3885 *id
3886 } else {
3887 return Task::ready(Err(anyhow!(
3888 "language server for worktree and language not found"
3889 )));
3890 };
3891
3892 let worktree_abs_path = if let Some(worktree_abs_path) = self
3893 .worktree_for_id(symbol.path.worktree_id, cx)
3894 .and_then(|worktree| worktree.read(cx).as_local())
3895 .map(|local_worktree| local_worktree.abs_path())
3896 {
3897 worktree_abs_path
3898 } else {
3899 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3900 };
3901 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
3902 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3903 uri
3904 } else {
3905 return Task::ready(Err(anyhow!("invalid symbol path")));
3906 };
3907
3908 self.open_local_buffer_via_lsp(
3909 symbol_uri,
3910 language_server_id,
3911 symbol.language_server_name.clone(),
3912 cx,
3913 )
3914 } else if let Some(project_id) = self.remote_id() {
3915 let request = self.client.request(proto::OpenBufferForSymbol {
3916 project_id,
3917 symbol: Some(serialize_symbol(symbol)),
3918 });
3919 cx.spawn(|this, mut cx| async move {
3920 let response = request.await?;
3921 this.update(&mut cx, |this, cx| {
3922 this.wait_for_remote_buffer(response.buffer_id, cx)
3923 })
3924 .await
3925 })
3926 } else {
3927 Task::ready(Err(anyhow!("project does not have a remote id")))
3928 }
3929 }
3930
3931 pub fn hover<T: ToPointUtf16>(
3932 &self,
3933 buffer: &ModelHandle<Buffer>,
3934 position: T,
3935 cx: &mut ModelContext<Self>,
3936 ) -> Task<Result<Option<Hover>>> {
3937 let position = position.to_point_utf16(buffer.read(cx));
3938 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3939 }
3940
3941 pub fn completions<T: ToPointUtf16>(
3942 &self,
3943 buffer: &ModelHandle<Buffer>,
3944 position: T,
3945 cx: &mut ModelContext<Self>,
3946 ) -> Task<Result<Vec<Completion>>> {
3947 let position = position.to_point_utf16(buffer.read(cx));
3948 self.request_lsp(buffer.clone(), GetCompletions { position }, cx)
3949 }
3950
3951 pub fn apply_additional_edits_for_completion(
3952 &self,
3953 buffer_handle: ModelHandle<Buffer>,
3954 completion: Completion,
3955 push_to_history: bool,
3956 cx: &mut ModelContext<Self>,
3957 ) -> Task<Result<Option<Transaction>>> {
3958 let buffer = buffer_handle.read(cx);
3959 let buffer_id = buffer.remote_id();
3960
3961 if self.is_local() {
3962 let lang_server = match self.primary_language_servers_for_buffer(buffer, cx) {
3963 Some((_, server)) => server.clone(),
3964 _ => return Task::ready(Ok(Default::default())),
3965 };
3966
3967 cx.spawn(|this, mut cx| async move {
3968 let resolved_completion = lang_server
3969 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3970 .await?;
3971
3972 if let Some(edits) = resolved_completion.additional_text_edits {
3973 let edits = this
3974 .update(&mut cx, |this, cx| {
3975 this.edits_from_lsp(
3976 &buffer_handle,
3977 edits,
3978 lang_server.server_id(),
3979 None,
3980 cx,
3981 )
3982 })
3983 .await?;
3984
3985 buffer_handle.update(&mut cx, |buffer, cx| {
3986 buffer.finalize_last_transaction();
3987 buffer.start_transaction();
3988
3989 for (range, text) in edits {
3990 let primary = &completion.old_range;
3991 let start_within = primary.start.cmp(&range.start, buffer).is_le()
3992 && primary.end.cmp(&range.start, buffer).is_ge();
3993 let end_within = range.start.cmp(&primary.end, buffer).is_le()
3994 && range.end.cmp(&primary.end, buffer).is_ge();
3995
3996 //Skip addtional edits which overlap with the primary completion edit
3997 //https://github.com/zed-industries/zed/pull/1871
3998 if !start_within && !end_within {
3999 buffer.edit([(range, text)], None, cx);
4000 }
4001 }
4002
4003 let transaction = if buffer.end_transaction(cx).is_some() {
4004 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4005 if !push_to_history {
4006 buffer.forget_transaction(transaction.id);
4007 }
4008 Some(transaction)
4009 } else {
4010 None
4011 };
4012 Ok(transaction)
4013 })
4014 } else {
4015 Ok(None)
4016 }
4017 })
4018 } else if let Some(project_id) = self.remote_id() {
4019 let client = self.client.clone();
4020 cx.spawn(|_, mut cx| async move {
4021 let response = client
4022 .request(proto::ApplyCompletionAdditionalEdits {
4023 project_id,
4024 buffer_id,
4025 completion: Some(language::proto::serialize_completion(&completion)),
4026 })
4027 .await?;
4028
4029 if let Some(transaction) = response.transaction {
4030 let transaction = language::proto::deserialize_transaction(transaction)?;
4031 buffer_handle
4032 .update(&mut cx, |buffer, _| {
4033 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
4034 })
4035 .await?;
4036 if push_to_history {
4037 buffer_handle.update(&mut cx, |buffer, _| {
4038 buffer.push_transaction(transaction.clone(), Instant::now());
4039 });
4040 }
4041 Ok(Some(transaction))
4042 } else {
4043 Ok(None)
4044 }
4045 })
4046 } else {
4047 Task::ready(Err(anyhow!("project does not have a remote id")))
4048 }
4049 }
4050
4051 pub fn code_actions<T: Clone + ToOffset>(
4052 &self,
4053 buffer_handle: &ModelHandle<Buffer>,
4054 range: Range<T>,
4055 cx: &mut ModelContext<Self>,
4056 ) -> Task<Result<Vec<CodeAction>>> {
4057 let buffer = buffer_handle.read(cx);
4058 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
4059 self.request_lsp(buffer_handle.clone(), GetCodeActions { range }, cx)
4060 }
4061
4062 pub fn apply_code_action(
4063 &self,
4064 buffer_handle: ModelHandle<Buffer>,
4065 mut action: CodeAction,
4066 push_to_history: bool,
4067 cx: &mut ModelContext<Self>,
4068 ) -> Task<Result<ProjectTransaction>> {
4069 if self.is_local() {
4070 let buffer = buffer_handle.read(cx);
4071 let (lsp_adapter, lang_server) = if let Some((adapter, server)) =
4072 self.language_server_for_buffer(buffer, action.server_id, cx)
4073 {
4074 (adapter.clone(), server.clone())
4075 } else {
4076 return Task::ready(Ok(Default::default()));
4077 };
4078 let range = action.range.to_point_utf16(buffer);
4079
4080 cx.spawn(|this, mut cx| async move {
4081 if let Some(lsp_range) = action
4082 .lsp_action
4083 .data
4084 .as_mut()
4085 .and_then(|d| d.get_mut("codeActionParams"))
4086 .and_then(|d| d.get_mut("range"))
4087 {
4088 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
4089 action.lsp_action = lang_server
4090 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
4091 .await?;
4092 } else {
4093 let actions = this
4094 .update(&mut cx, |this, cx| {
4095 this.code_actions(&buffer_handle, action.range, cx)
4096 })
4097 .await?;
4098 action.lsp_action = actions
4099 .into_iter()
4100 .find(|a| a.lsp_action.title == action.lsp_action.title)
4101 .ok_or_else(|| anyhow!("code action is outdated"))?
4102 .lsp_action;
4103 }
4104
4105 if let Some(edit) = action.lsp_action.edit {
4106 if edit.changes.is_some() || edit.document_changes.is_some() {
4107 return Self::deserialize_workspace_edit(
4108 this,
4109 edit,
4110 push_to_history,
4111 lsp_adapter.clone(),
4112 lang_server.clone(),
4113 &mut cx,
4114 )
4115 .await;
4116 }
4117 }
4118
4119 if let Some(command) = action.lsp_action.command {
4120 this.update(&mut cx, |this, _| {
4121 this.last_workspace_edits_by_language_server
4122 .remove(&lang_server.server_id());
4123 });
4124 lang_server
4125 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
4126 command: command.command,
4127 arguments: command.arguments.unwrap_or_default(),
4128 ..Default::default()
4129 })
4130 .await?;
4131 return Ok(this.update(&mut cx, |this, _| {
4132 this.last_workspace_edits_by_language_server
4133 .remove(&lang_server.server_id())
4134 .unwrap_or_default()
4135 }));
4136 }
4137
4138 Ok(ProjectTransaction::default())
4139 })
4140 } else if let Some(project_id) = self.remote_id() {
4141 let client = self.client.clone();
4142 let request = proto::ApplyCodeAction {
4143 project_id,
4144 buffer_id: buffer_handle.read(cx).remote_id(),
4145 action: Some(language::proto::serialize_code_action(&action)),
4146 };
4147 cx.spawn(|this, mut cx| async move {
4148 let response = client
4149 .request(request)
4150 .await?
4151 .transaction
4152 .ok_or_else(|| anyhow!("missing transaction"))?;
4153 this.update(&mut cx, |this, cx| {
4154 this.deserialize_project_transaction(response, push_to_history, cx)
4155 })
4156 .await
4157 })
4158 } else {
4159 Task::ready(Err(anyhow!("project does not have a remote id")))
4160 }
4161 }
4162
4163 fn apply_on_type_formatting(
4164 &self,
4165 buffer: ModelHandle<Buffer>,
4166 position: Anchor,
4167 trigger: String,
4168 cx: &mut ModelContext<Self>,
4169 ) -> Task<Result<Option<Transaction>>> {
4170 if self.is_local() {
4171 cx.spawn(|this, mut cx| async move {
4172 // Do not allow multiple concurrent formatting requests for the
4173 // same buffer.
4174 this.update(&mut cx, |this, cx| {
4175 this.buffers_being_formatted
4176 .insert(buffer.read(cx).remote_id())
4177 });
4178
4179 let _cleanup = defer({
4180 let this = this.clone();
4181 let mut cx = cx.clone();
4182 let closure_buffer = buffer.clone();
4183 move || {
4184 this.update(&mut cx, |this, cx| {
4185 this.buffers_being_formatted
4186 .remove(&closure_buffer.read(cx).remote_id());
4187 });
4188 }
4189 });
4190
4191 buffer
4192 .update(&mut cx, |buffer, _| {
4193 buffer.wait_for_edits(Some(position.timestamp))
4194 })
4195 .await?;
4196 this.update(&mut cx, |this, cx| {
4197 let position = position.to_point_utf16(buffer.read(cx));
4198 this.on_type_format(buffer, position, trigger, false, cx)
4199 })
4200 .await
4201 })
4202 } else if let Some(project_id) = self.remote_id() {
4203 let client = self.client.clone();
4204 let request = proto::OnTypeFormatting {
4205 project_id,
4206 buffer_id: buffer.read(cx).remote_id(),
4207 position: Some(serialize_anchor(&position)),
4208 trigger,
4209 version: serialize_version(&buffer.read(cx).version()),
4210 };
4211 cx.spawn(|_, _| async move {
4212 client
4213 .request(request)
4214 .await?
4215 .transaction
4216 .map(language::proto::deserialize_transaction)
4217 .transpose()
4218 })
4219 } else {
4220 Task::ready(Err(anyhow!("project does not have a remote id")))
4221 }
4222 }
4223
4224 async fn deserialize_edits(
4225 this: ModelHandle<Self>,
4226 buffer_to_edit: ModelHandle<Buffer>,
4227 edits: Vec<lsp::TextEdit>,
4228 push_to_history: bool,
4229 _: Arc<CachedLspAdapter>,
4230 language_server: Arc<LanguageServer>,
4231 cx: &mut AsyncAppContext,
4232 ) -> Result<Option<Transaction>> {
4233 let edits = this
4234 .update(cx, |this, cx| {
4235 this.edits_from_lsp(
4236 &buffer_to_edit,
4237 edits,
4238 language_server.server_id(),
4239 None,
4240 cx,
4241 )
4242 })
4243 .await?;
4244
4245 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4246 buffer.finalize_last_transaction();
4247 buffer.start_transaction();
4248 for (range, text) in edits {
4249 buffer.edit([(range, text)], None, cx);
4250 }
4251
4252 if buffer.end_transaction(cx).is_some() {
4253 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4254 if !push_to_history {
4255 buffer.forget_transaction(transaction.id);
4256 }
4257 Some(transaction)
4258 } else {
4259 None
4260 }
4261 });
4262
4263 Ok(transaction)
4264 }
4265
4266 async fn deserialize_workspace_edit(
4267 this: ModelHandle<Self>,
4268 edit: lsp::WorkspaceEdit,
4269 push_to_history: bool,
4270 lsp_adapter: Arc<CachedLspAdapter>,
4271 language_server: Arc<LanguageServer>,
4272 cx: &mut AsyncAppContext,
4273 ) -> Result<ProjectTransaction> {
4274 let fs = this.read_with(cx, |this, _| this.fs.clone());
4275 let mut operations = Vec::new();
4276 if let Some(document_changes) = edit.document_changes {
4277 match document_changes {
4278 lsp::DocumentChanges::Edits(edits) => {
4279 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
4280 }
4281 lsp::DocumentChanges::Operations(ops) => operations = ops,
4282 }
4283 } else if let Some(changes) = edit.changes {
4284 operations.extend(changes.into_iter().map(|(uri, edits)| {
4285 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
4286 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
4287 uri,
4288 version: None,
4289 },
4290 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
4291 })
4292 }));
4293 }
4294
4295 let mut project_transaction = ProjectTransaction::default();
4296 for operation in operations {
4297 match operation {
4298 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
4299 let abs_path = op
4300 .uri
4301 .to_file_path()
4302 .map_err(|_| anyhow!("can't convert URI to path"))?;
4303
4304 if let Some(parent_path) = abs_path.parent() {
4305 fs.create_dir(parent_path).await?;
4306 }
4307 if abs_path.ends_with("/") {
4308 fs.create_dir(&abs_path).await?;
4309 } else {
4310 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
4311 .await?;
4312 }
4313 }
4314
4315 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
4316 let source_abs_path = op
4317 .old_uri
4318 .to_file_path()
4319 .map_err(|_| anyhow!("can't convert URI to path"))?;
4320 let target_abs_path = op
4321 .new_uri
4322 .to_file_path()
4323 .map_err(|_| anyhow!("can't convert URI to path"))?;
4324 fs.rename(
4325 &source_abs_path,
4326 &target_abs_path,
4327 op.options.map(Into::into).unwrap_or_default(),
4328 )
4329 .await?;
4330 }
4331
4332 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
4333 let abs_path = op
4334 .uri
4335 .to_file_path()
4336 .map_err(|_| anyhow!("can't convert URI to path"))?;
4337 let options = op.options.map(Into::into).unwrap_or_default();
4338 if abs_path.ends_with("/") {
4339 fs.remove_dir(&abs_path, options).await?;
4340 } else {
4341 fs.remove_file(&abs_path, options).await?;
4342 }
4343 }
4344
4345 lsp::DocumentChangeOperation::Edit(op) => {
4346 let buffer_to_edit = this
4347 .update(cx, |this, cx| {
4348 this.open_local_buffer_via_lsp(
4349 op.text_document.uri,
4350 language_server.server_id(),
4351 lsp_adapter.name.clone(),
4352 cx,
4353 )
4354 })
4355 .await?;
4356
4357 let edits = this
4358 .update(cx, |this, cx| {
4359 let edits = op.edits.into_iter().map(|edit| match edit {
4360 lsp::OneOf::Left(edit) => edit,
4361 lsp::OneOf::Right(edit) => edit.text_edit,
4362 });
4363 this.edits_from_lsp(
4364 &buffer_to_edit,
4365 edits,
4366 language_server.server_id(),
4367 op.text_document.version,
4368 cx,
4369 )
4370 })
4371 .await?;
4372
4373 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4374 buffer.finalize_last_transaction();
4375 buffer.start_transaction();
4376 for (range, text) in edits {
4377 buffer.edit([(range, text)], None, cx);
4378 }
4379 let transaction = if buffer.end_transaction(cx).is_some() {
4380 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4381 if !push_to_history {
4382 buffer.forget_transaction(transaction.id);
4383 }
4384 Some(transaction)
4385 } else {
4386 None
4387 };
4388
4389 transaction
4390 });
4391 if let Some(transaction) = transaction {
4392 project_transaction.0.insert(buffer_to_edit, transaction);
4393 }
4394 }
4395 }
4396 }
4397
4398 Ok(project_transaction)
4399 }
4400
4401 pub fn prepare_rename<T: ToPointUtf16>(
4402 &self,
4403 buffer: ModelHandle<Buffer>,
4404 position: T,
4405 cx: &mut ModelContext<Self>,
4406 ) -> Task<Result<Option<Range<Anchor>>>> {
4407 let position = position.to_point_utf16(buffer.read(cx));
4408 self.request_lsp(buffer, PrepareRename { position }, cx)
4409 }
4410
4411 pub fn perform_rename<T: ToPointUtf16>(
4412 &self,
4413 buffer: ModelHandle<Buffer>,
4414 position: T,
4415 new_name: String,
4416 push_to_history: bool,
4417 cx: &mut ModelContext<Self>,
4418 ) -> Task<Result<ProjectTransaction>> {
4419 let position = position.to_point_utf16(buffer.read(cx));
4420 self.request_lsp(
4421 buffer,
4422 PerformRename {
4423 position,
4424 new_name,
4425 push_to_history,
4426 },
4427 cx,
4428 )
4429 }
4430
4431 pub fn on_type_format<T: ToPointUtf16>(
4432 &self,
4433 buffer: ModelHandle<Buffer>,
4434 position: T,
4435 trigger: String,
4436 push_to_history: bool,
4437 cx: &mut ModelContext<Self>,
4438 ) -> Task<Result<Option<Transaction>>> {
4439 let tab_size = buffer.read_with(cx, |buffer, cx| {
4440 let language_name = buffer.language().map(|language| language.name());
4441 language_settings(language_name.as_deref(), cx).tab_size
4442 });
4443 let position = position.to_point_utf16(buffer.read(cx));
4444 self.request_lsp(
4445 buffer.clone(),
4446 OnTypeFormatting {
4447 position,
4448 trigger,
4449 options: lsp_command::lsp_formatting_options(tab_size.get()).into(),
4450 push_to_history,
4451 },
4452 cx,
4453 )
4454 }
4455
4456 #[allow(clippy::type_complexity)]
4457 pub fn search(
4458 &self,
4459 query: SearchQuery,
4460 cx: &mut ModelContext<Self>,
4461 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
4462 if self.is_local() {
4463 let snapshots = self
4464 .visible_worktrees(cx)
4465 .filter_map(|tree| {
4466 let tree = tree.read(cx).as_local()?;
4467 Some(tree.snapshot())
4468 })
4469 .collect::<Vec<_>>();
4470
4471 let background = cx.background().clone();
4472 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
4473 if path_count == 0 {
4474 return Task::ready(Ok(Default::default()));
4475 }
4476 let workers = background.num_cpus().min(path_count);
4477 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
4478 cx.background()
4479 .spawn({
4480 let fs = self.fs.clone();
4481 let background = cx.background().clone();
4482 let query = query.clone();
4483 async move {
4484 let fs = &fs;
4485 let query = &query;
4486 let matching_paths_tx = &matching_paths_tx;
4487 let paths_per_worker = (path_count + workers - 1) / workers;
4488 let snapshots = &snapshots;
4489 background
4490 .scoped(|scope| {
4491 for worker_ix in 0..workers {
4492 let worker_start_ix = worker_ix * paths_per_worker;
4493 let worker_end_ix = worker_start_ix + paths_per_worker;
4494 scope.spawn(async move {
4495 let mut snapshot_start_ix = 0;
4496 let mut abs_path = PathBuf::new();
4497 for snapshot in snapshots {
4498 let snapshot_end_ix =
4499 snapshot_start_ix + snapshot.visible_file_count();
4500 if worker_end_ix <= snapshot_start_ix {
4501 break;
4502 } else if worker_start_ix > snapshot_end_ix {
4503 snapshot_start_ix = snapshot_end_ix;
4504 continue;
4505 } else {
4506 let start_in_snapshot = worker_start_ix
4507 .saturating_sub(snapshot_start_ix);
4508 let end_in_snapshot =
4509 cmp::min(worker_end_ix, snapshot_end_ix)
4510 - snapshot_start_ix;
4511
4512 for entry in snapshot
4513 .files(false, start_in_snapshot)
4514 .take(end_in_snapshot - start_in_snapshot)
4515 {
4516 if matching_paths_tx.is_closed() {
4517 break;
4518 }
4519 let matches = if query
4520 .file_matches(Some(&entry.path))
4521 {
4522 abs_path.clear();
4523 abs_path.push(&snapshot.abs_path());
4524 abs_path.push(&entry.path);
4525 if let Some(file) =
4526 fs.open_sync(&abs_path).await.log_err()
4527 {
4528 query.detect(file).unwrap_or(false)
4529 } else {
4530 false
4531 }
4532 } else {
4533 false
4534 };
4535
4536 if matches {
4537 let project_path =
4538 (snapshot.id(), entry.path.clone());
4539 if matching_paths_tx
4540 .send(project_path)
4541 .await
4542 .is_err()
4543 {
4544 break;
4545 }
4546 }
4547 }
4548
4549 snapshot_start_ix = snapshot_end_ix;
4550 }
4551 }
4552 });
4553 }
4554 })
4555 .await;
4556 }
4557 })
4558 .detach();
4559
4560 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
4561 let open_buffers = self
4562 .opened_buffers
4563 .values()
4564 .filter_map(|b| b.upgrade(cx))
4565 .collect::<HashSet<_>>();
4566 cx.spawn(|this, cx| async move {
4567 for buffer in &open_buffers {
4568 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4569 buffers_tx.send((buffer.clone(), snapshot)).await?;
4570 }
4571
4572 let open_buffers = Rc::new(RefCell::new(open_buffers));
4573 while let Some(project_path) = matching_paths_rx.next().await {
4574 if buffers_tx.is_closed() {
4575 break;
4576 }
4577
4578 let this = this.clone();
4579 let open_buffers = open_buffers.clone();
4580 let buffers_tx = buffers_tx.clone();
4581 cx.spawn(|mut cx| async move {
4582 if let Some(buffer) = this
4583 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
4584 .await
4585 .log_err()
4586 {
4587 if open_buffers.borrow_mut().insert(buffer.clone()) {
4588 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4589 buffers_tx.send((buffer, snapshot)).await?;
4590 }
4591 }
4592
4593 Ok::<_, anyhow::Error>(())
4594 })
4595 .detach();
4596 }
4597
4598 Ok::<_, anyhow::Error>(())
4599 })
4600 .detach_and_log_err(cx);
4601
4602 let background = cx.background().clone();
4603 cx.background().spawn(async move {
4604 let query = &query;
4605 let mut matched_buffers = Vec::new();
4606 for _ in 0..workers {
4607 matched_buffers.push(HashMap::default());
4608 }
4609 background
4610 .scoped(|scope| {
4611 for worker_matched_buffers in matched_buffers.iter_mut() {
4612 let mut buffers_rx = buffers_rx.clone();
4613 scope.spawn(async move {
4614 while let Some((buffer, snapshot)) = buffers_rx.next().await {
4615 let buffer_matches = if query.file_matches(
4616 snapshot.file().map(|file| file.path().as_ref()),
4617 ) {
4618 query
4619 .search(snapshot.as_rope())
4620 .await
4621 .iter()
4622 .map(|range| {
4623 snapshot.anchor_before(range.start)
4624 ..snapshot.anchor_after(range.end)
4625 })
4626 .collect()
4627 } else {
4628 Vec::new()
4629 };
4630 if !buffer_matches.is_empty() {
4631 worker_matched_buffers
4632 .insert(buffer.clone(), buffer_matches);
4633 }
4634 }
4635 });
4636 }
4637 })
4638 .await;
4639 Ok(matched_buffers.into_iter().flatten().collect())
4640 })
4641 } else if let Some(project_id) = self.remote_id() {
4642 let request = self.client.request(query.to_proto(project_id));
4643 cx.spawn(|this, mut cx| async move {
4644 let response = request.await?;
4645 let mut result = HashMap::default();
4646 for location in response.locations {
4647 let target_buffer = this
4648 .update(&mut cx, |this, cx| {
4649 this.wait_for_remote_buffer(location.buffer_id, cx)
4650 })
4651 .await?;
4652 let start = location
4653 .start
4654 .and_then(deserialize_anchor)
4655 .ok_or_else(|| anyhow!("missing target start"))?;
4656 let end = location
4657 .end
4658 .and_then(deserialize_anchor)
4659 .ok_or_else(|| anyhow!("missing target end"))?;
4660 result
4661 .entry(target_buffer)
4662 .or_insert(Vec::new())
4663 .push(start..end)
4664 }
4665 Ok(result)
4666 })
4667 } else {
4668 Task::ready(Ok(Default::default()))
4669 }
4670 }
4671
4672 // TODO: Wire this up to allow selecting a server?
4673 fn request_lsp<R: LspCommand>(
4674 &self,
4675 buffer_handle: ModelHandle<Buffer>,
4676 request: R,
4677 cx: &mut ModelContext<Self>,
4678 ) -> Task<Result<R::Response>>
4679 where
4680 <R::LspRequest as lsp::request::Request>::Result: Send,
4681 {
4682 let buffer = buffer_handle.read(cx);
4683 if self.is_local() {
4684 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
4685 if let Some((file, language_server)) = file.zip(
4686 self.primary_language_servers_for_buffer(buffer, cx)
4687 .map(|(_, server)| server.clone()),
4688 ) {
4689 let lsp_params = request.to_lsp(&file.abs_path(cx), buffer, &language_server, cx);
4690 return cx.spawn(|this, cx| async move {
4691 if !request.check_capabilities(language_server.capabilities()) {
4692 return Ok(Default::default());
4693 }
4694
4695 let response = language_server
4696 .request::<R::LspRequest>(lsp_params)
4697 .await
4698 .context("lsp request failed")?;
4699 request
4700 .response_from_lsp(
4701 response,
4702 this,
4703 buffer_handle,
4704 language_server.server_id(),
4705 cx,
4706 )
4707 .await
4708 });
4709 }
4710 } else if let Some(project_id) = self.remote_id() {
4711 let rpc = self.client.clone();
4712 let message = request.to_proto(project_id, buffer);
4713 return cx.spawn_weak(|this, cx| async move {
4714 // Ensure the project is still alive by the time the task
4715 // is scheduled.
4716 this.upgrade(&cx)
4717 .ok_or_else(|| anyhow!("project dropped"))?;
4718
4719 let response = rpc.request(message).await?;
4720
4721 let this = this
4722 .upgrade(&cx)
4723 .ok_or_else(|| anyhow!("project dropped"))?;
4724 if this.read_with(&cx, |this, _| this.is_read_only()) {
4725 Err(anyhow!("disconnected before completing request"))
4726 } else {
4727 request
4728 .response_from_proto(response, this, buffer_handle, cx)
4729 .await
4730 }
4731 });
4732 }
4733 Task::ready(Ok(Default::default()))
4734 }
4735
4736 pub fn find_or_create_local_worktree(
4737 &mut self,
4738 abs_path: impl AsRef<Path>,
4739 visible: bool,
4740 cx: &mut ModelContext<Self>,
4741 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
4742 let abs_path = abs_path.as_ref();
4743 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4744 Task::ready(Ok((tree, relative_path)))
4745 } else {
4746 let worktree = self.create_local_worktree(abs_path, visible, cx);
4747 cx.foreground()
4748 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4749 }
4750 }
4751
4752 pub fn find_local_worktree(
4753 &self,
4754 abs_path: &Path,
4755 cx: &AppContext,
4756 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4757 for tree in &self.worktrees {
4758 if let Some(tree) = tree.upgrade(cx) {
4759 if let Some(relative_path) = tree
4760 .read(cx)
4761 .as_local()
4762 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4763 {
4764 return Some((tree.clone(), relative_path.into()));
4765 }
4766 }
4767 }
4768 None
4769 }
4770
4771 pub fn is_shared(&self) -> bool {
4772 match &self.client_state {
4773 Some(ProjectClientState::Local { .. }) => true,
4774 _ => false,
4775 }
4776 }
4777
4778 fn create_local_worktree(
4779 &mut self,
4780 abs_path: impl AsRef<Path>,
4781 visible: bool,
4782 cx: &mut ModelContext<Self>,
4783 ) -> Task<Result<ModelHandle<Worktree>>> {
4784 let fs = self.fs.clone();
4785 let client = self.client.clone();
4786 let next_entry_id = self.next_entry_id.clone();
4787 let path: Arc<Path> = abs_path.as_ref().into();
4788 let task = self
4789 .loading_local_worktrees
4790 .entry(path.clone())
4791 .or_insert_with(|| {
4792 cx.spawn(|project, mut cx| {
4793 async move {
4794 let worktree = Worktree::local(
4795 client.clone(),
4796 path.clone(),
4797 visible,
4798 fs,
4799 next_entry_id,
4800 &mut cx,
4801 )
4802 .await;
4803
4804 project.update(&mut cx, |project, _| {
4805 project.loading_local_worktrees.remove(&path);
4806 });
4807
4808 let worktree = worktree?;
4809 project.update(&mut cx, |project, cx| project.add_worktree(&worktree, cx));
4810 Ok(worktree)
4811 }
4812 .map_err(Arc::new)
4813 })
4814 .shared()
4815 })
4816 .clone();
4817 cx.foreground().spawn(async move {
4818 match task.await {
4819 Ok(worktree) => Ok(worktree),
4820 Err(err) => Err(anyhow!("{}", err)),
4821 }
4822 })
4823 }
4824
4825 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4826 self.worktrees.retain(|worktree| {
4827 if let Some(worktree) = worktree.upgrade(cx) {
4828 let id = worktree.read(cx).id();
4829 if id == id_to_remove {
4830 cx.emit(Event::WorktreeRemoved(id));
4831 false
4832 } else {
4833 true
4834 }
4835 } else {
4836 false
4837 }
4838 });
4839 self.metadata_changed(cx);
4840 }
4841
4842 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4843 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
4844 if worktree.read(cx).is_local() {
4845 cx.subscribe(worktree, |this, worktree, event, cx| match event {
4846 worktree::Event::UpdatedEntries(changes) => {
4847 this.update_local_worktree_buffers(&worktree, &changes, cx);
4848 this.update_local_worktree_language_servers(&worktree, changes, cx);
4849 }
4850 worktree::Event::UpdatedGitRepositories(updated_repos) => {
4851 this.update_local_worktree_buffers_git_repos(worktree, updated_repos, cx)
4852 }
4853 })
4854 .detach();
4855 }
4856
4857 let push_strong_handle = {
4858 let worktree = worktree.read(cx);
4859 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4860 };
4861 if push_strong_handle {
4862 self.worktrees
4863 .push(WorktreeHandle::Strong(worktree.clone()));
4864 } else {
4865 self.worktrees
4866 .push(WorktreeHandle::Weak(worktree.downgrade()));
4867 }
4868
4869 cx.observe_release(worktree, |this, worktree, cx| {
4870 let _ = this.remove_worktree(worktree.id(), cx);
4871 })
4872 .detach();
4873
4874 cx.emit(Event::WorktreeAdded);
4875 self.metadata_changed(cx);
4876 }
4877
4878 fn update_local_worktree_buffers(
4879 &mut self,
4880 worktree_handle: &ModelHandle<Worktree>,
4881 changes: &HashMap<(Arc<Path>, ProjectEntryId), PathChange>,
4882 cx: &mut ModelContext<Self>,
4883 ) {
4884 let snapshot = worktree_handle.read(cx).snapshot();
4885
4886 let mut renamed_buffers = Vec::new();
4887 for (path, entry_id) in changes.keys() {
4888 let worktree_id = worktree_handle.read(cx).id();
4889 let project_path = ProjectPath {
4890 worktree_id,
4891 path: path.clone(),
4892 };
4893
4894 let buffer_id = match self.local_buffer_ids_by_entry_id.get(entry_id) {
4895 Some(&buffer_id) => buffer_id,
4896 None => match self.local_buffer_ids_by_path.get(&project_path) {
4897 Some(&buffer_id) => buffer_id,
4898 None => continue,
4899 },
4900 };
4901
4902 let open_buffer = self.opened_buffers.get(&buffer_id);
4903 let buffer = if let Some(buffer) = open_buffer.and_then(|buffer| buffer.upgrade(cx)) {
4904 buffer
4905 } else {
4906 self.opened_buffers.remove(&buffer_id);
4907 self.local_buffer_ids_by_path.remove(&project_path);
4908 self.local_buffer_ids_by_entry_id.remove(entry_id);
4909 continue;
4910 };
4911
4912 buffer.update(cx, |buffer, cx| {
4913 if let Some(old_file) = File::from_dyn(buffer.file()) {
4914 if old_file.worktree != *worktree_handle {
4915 return;
4916 }
4917
4918 let new_file = if let Some(entry) = snapshot.entry_for_id(old_file.entry_id) {
4919 File {
4920 is_local: true,
4921 entry_id: entry.id,
4922 mtime: entry.mtime,
4923 path: entry.path.clone(),
4924 worktree: worktree_handle.clone(),
4925 is_deleted: false,
4926 }
4927 } else if let Some(entry) = snapshot.entry_for_path(old_file.path().as_ref()) {
4928 File {
4929 is_local: true,
4930 entry_id: entry.id,
4931 mtime: entry.mtime,
4932 path: entry.path.clone(),
4933 worktree: worktree_handle.clone(),
4934 is_deleted: false,
4935 }
4936 } else {
4937 File {
4938 is_local: true,
4939 entry_id: old_file.entry_id,
4940 path: old_file.path().clone(),
4941 mtime: old_file.mtime(),
4942 worktree: worktree_handle.clone(),
4943 is_deleted: true,
4944 }
4945 };
4946
4947 let old_path = old_file.abs_path(cx);
4948 if new_file.abs_path(cx) != old_path {
4949 renamed_buffers.push((cx.handle(), old_file.clone()));
4950 self.local_buffer_ids_by_path.remove(&project_path);
4951 self.local_buffer_ids_by_path.insert(
4952 ProjectPath {
4953 worktree_id,
4954 path: path.clone(),
4955 },
4956 buffer_id,
4957 );
4958 }
4959
4960 if new_file.entry_id != *entry_id {
4961 self.local_buffer_ids_by_entry_id.remove(entry_id);
4962 self.local_buffer_ids_by_entry_id
4963 .insert(new_file.entry_id, buffer_id);
4964 }
4965
4966 if new_file != *old_file {
4967 if let Some(project_id) = self.remote_id() {
4968 self.client
4969 .send(proto::UpdateBufferFile {
4970 project_id,
4971 buffer_id: buffer_id as u64,
4972 file: Some(new_file.to_proto()),
4973 })
4974 .log_err();
4975 }
4976
4977 buffer.file_updated(Arc::new(new_file), cx).detach();
4978 }
4979 }
4980 });
4981 }
4982
4983 for (buffer, old_file) in renamed_buffers {
4984 self.unregister_buffer_from_language_servers(&buffer, &old_file, cx);
4985 self.detect_language_for_buffer(&buffer, cx);
4986 self.register_buffer_with_language_servers(&buffer, cx);
4987 }
4988 }
4989
4990 fn update_local_worktree_language_servers(
4991 &mut self,
4992 worktree_handle: &ModelHandle<Worktree>,
4993 changes: &HashMap<(Arc<Path>, ProjectEntryId), PathChange>,
4994 cx: &mut ModelContext<Self>,
4995 ) {
4996 if changes.is_empty() {
4997 return;
4998 }
4999
5000 let worktree_id = worktree_handle.read(cx).id();
5001 let mut language_server_ids = self
5002 .language_server_ids
5003 .iter()
5004 .filter_map(|((server_worktree_id, _), server_id)| {
5005 (*server_worktree_id == worktree_id).then_some(*server_id)
5006 })
5007 .collect::<Vec<_>>();
5008 language_server_ids.sort();
5009 language_server_ids.dedup();
5010
5011 let abs_path = worktree_handle.read(cx).abs_path();
5012 for server_id in &language_server_ids {
5013 if let Some(server) = self.language_servers.get(server_id) {
5014 if let LanguageServerState::Running {
5015 server,
5016 watched_paths,
5017 ..
5018 } = server
5019 {
5020 if let Some(watched_paths) = watched_paths.get(&worktree_id) {
5021 let params = lsp::DidChangeWatchedFilesParams {
5022 changes: changes
5023 .iter()
5024 .filter_map(|((path, _), change)| {
5025 if watched_paths.is_match(&path) {
5026 Some(lsp::FileEvent {
5027 uri: lsp::Url::from_file_path(abs_path.join(path))
5028 .unwrap(),
5029 typ: match change {
5030 PathChange::Added => lsp::FileChangeType::CREATED,
5031 PathChange::Removed => lsp::FileChangeType::DELETED,
5032 PathChange::Updated
5033 | PathChange::AddedOrUpdated => {
5034 lsp::FileChangeType::CHANGED
5035 }
5036 },
5037 })
5038 } else {
5039 None
5040 }
5041 })
5042 .collect(),
5043 };
5044
5045 if !params.changes.is_empty() {
5046 server
5047 .notify::<lsp::notification::DidChangeWatchedFiles>(params)
5048 .log_err();
5049 }
5050 }
5051 }
5052 }
5053 }
5054 }
5055
5056 fn update_local_worktree_buffers_git_repos(
5057 &mut self,
5058 worktree_handle: ModelHandle<Worktree>,
5059 repos: &HashMap<Arc<Path>, LocalRepositoryEntry>,
5060 cx: &mut ModelContext<Self>,
5061 ) {
5062 debug_assert!(worktree_handle.read(cx).is_local());
5063
5064 // Setup the pending buffers
5065 let future_buffers = self
5066 .loading_buffers_by_path
5067 .iter()
5068 .filter_map(|(path, receiver)| {
5069 let path = &path.path;
5070 let (work_directory, repo) = repos
5071 .iter()
5072 .find(|(work_directory, _)| path.starts_with(work_directory))?;
5073
5074 let repo_relative_path = path.strip_prefix(work_directory).log_err()?;
5075
5076 let receiver = receiver.clone();
5077 let repo_ptr = repo.repo_ptr.clone();
5078 let repo_relative_path = repo_relative_path.to_owned();
5079 Some(async move {
5080 pump_loading_buffer_reciever(receiver)
5081 .await
5082 .ok()
5083 .map(|buffer| (buffer, repo_relative_path, repo_ptr))
5084 })
5085 })
5086 .collect::<FuturesUnordered<_>>()
5087 .filter_map(|result| async move {
5088 let (buffer_handle, repo_relative_path, repo_ptr) = result?;
5089
5090 let lock = repo_ptr.lock();
5091 lock.load_index_text(&repo_relative_path)
5092 .map(|diff_base| (diff_base, buffer_handle))
5093 });
5094
5095 let update_diff_base_fn = update_diff_base(self);
5096 cx.spawn(|_, mut cx| async move {
5097 let diff_base_tasks = cx
5098 .background()
5099 .spawn(future_buffers.collect::<Vec<_>>())
5100 .await;
5101
5102 for (diff_base, buffer) in diff_base_tasks.into_iter() {
5103 update_diff_base_fn(Some(diff_base), buffer, &mut cx);
5104 }
5105 })
5106 .detach();
5107
5108 // And the current buffers
5109 for (_, buffer) in &self.opened_buffers {
5110 if let Some(buffer) = buffer.upgrade(cx) {
5111 let file = match File::from_dyn(buffer.read(cx).file()) {
5112 Some(file) => file,
5113 None => continue,
5114 };
5115 if file.worktree != worktree_handle {
5116 continue;
5117 }
5118
5119 let path = file.path().clone();
5120
5121 let worktree = worktree_handle.read(cx);
5122
5123 let (work_directory, repo) = match repos
5124 .iter()
5125 .find(|(work_directory, _)| path.starts_with(work_directory))
5126 {
5127 Some(repo) => repo.clone(),
5128 None => continue,
5129 };
5130
5131 let relative_repo = match path.strip_prefix(work_directory).log_err() {
5132 Some(relative_repo) => relative_repo.to_owned(),
5133 None => continue,
5134 };
5135
5136 drop(worktree);
5137
5138 let update_diff_base_fn = update_diff_base(self);
5139 let git_ptr = repo.repo_ptr.clone();
5140 let diff_base_task = cx
5141 .background()
5142 .spawn(async move { git_ptr.lock().load_index_text(&relative_repo) });
5143
5144 cx.spawn(|_, mut cx| async move {
5145 let diff_base = diff_base_task.await;
5146 update_diff_base_fn(diff_base, buffer, &mut cx);
5147 })
5148 .detach();
5149 }
5150 }
5151 }
5152
5153 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
5154 let new_active_entry = entry.and_then(|project_path| {
5155 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
5156 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
5157 Some(entry.id)
5158 });
5159 if new_active_entry != self.active_entry {
5160 self.active_entry = new_active_entry;
5161 cx.emit(Event::ActiveEntryChanged(new_active_entry));
5162 }
5163 }
5164
5165 pub fn language_servers_running_disk_based_diagnostics(
5166 &self,
5167 ) -> impl Iterator<Item = LanguageServerId> + '_ {
5168 self.language_server_statuses
5169 .iter()
5170 .filter_map(|(id, status)| {
5171 if status.has_pending_diagnostic_updates {
5172 Some(*id)
5173 } else {
5174 None
5175 }
5176 })
5177 }
5178
5179 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
5180 let mut summary = DiagnosticSummary::default();
5181 for (_, _, path_summary) in self.diagnostic_summaries(cx) {
5182 summary.error_count += path_summary.error_count;
5183 summary.warning_count += path_summary.warning_count;
5184 }
5185 summary
5186 }
5187
5188 pub fn diagnostic_summaries<'a>(
5189 &'a self,
5190 cx: &'a AppContext,
5191 ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
5192 self.visible_worktrees(cx).flat_map(move |worktree| {
5193 let worktree = worktree.read(cx);
5194 let worktree_id = worktree.id();
5195 worktree
5196 .diagnostic_summaries()
5197 .map(move |(path, server_id, summary)| {
5198 (ProjectPath { worktree_id, path }, server_id, summary)
5199 })
5200 })
5201 }
5202
5203 pub fn disk_based_diagnostics_started(
5204 &mut self,
5205 language_server_id: LanguageServerId,
5206 cx: &mut ModelContext<Self>,
5207 ) {
5208 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
5209 }
5210
5211 pub fn disk_based_diagnostics_finished(
5212 &mut self,
5213 language_server_id: LanguageServerId,
5214 cx: &mut ModelContext<Self>,
5215 ) {
5216 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
5217 }
5218
5219 pub fn active_entry(&self) -> Option<ProjectEntryId> {
5220 self.active_entry
5221 }
5222
5223 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
5224 self.worktree_for_id(path.worktree_id, cx)?
5225 .read(cx)
5226 .entry_for_path(&path.path)
5227 .cloned()
5228 }
5229
5230 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
5231 let worktree = self.worktree_for_entry(entry_id, cx)?;
5232 let worktree = worktree.read(cx);
5233 let worktree_id = worktree.id();
5234 let path = worktree.entry_for_id(entry_id)?.path.clone();
5235 Some(ProjectPath { worktree_id, path })
5236 }
5237
5238 // RPC message handlers
5239
5240 async fn handle_unshare_project(
5241 this: ModelHandle<Self>,
5242 _: TypedEnvelope<proto::UnshareProject>,
5243 _: Arc<Client>,
5244 mut cx: AsyncAppContext,
5245 ) -> Result<()> {
5246 this.update(&mut cx, |this, cx| {
5247 if this.is_local() {
5248 this.unshare(cx)?;
5249 } else {
5250 this.disconnected_from_host(cx);
5251 }
5252 Ok(())
5253 })
5254 }
5255
5256 async fn handle_add_collaborator(
5257 this: ModelHandle<Self>,
5258 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
5259 _: Arc<Client>,
5260 mut cx: AsyncAppContext,
5261 ) -> Result<()> {
5262 let collaborator = envelope
5263 .payload
5264 .collaborator
5265 .take()
5266 .ok_or_else(|| anyhow!("empty collaborator"))?;
5267
5268 let collaborator = Collaborator::from_proto(collaborator)?;
5269 this.update(&mut cx, |this, cx| {
5270 this.shared_buffers.remove(&collaborator.peer_id);
5271 this.collaborators
5272 .insert(collaborator.peer_id, collaborator);
5273 cx.notify();
5274 });
5275
5276 Ok(())
5277 }
5278
5279 async fn handle_update_project_collaborator(
5280 this: ModelHandle<Self>,
5281 envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
5282 _: Arc<Client>,
5283 mut cx: AsyncAppContext,
5284 ) -> Result<()> {
5285 let old_peer_id = envelope
5286 .payload
5287 .old_peer_id
5288 .ok_or_else(|| anyhow!("missing old peer id"))?;
5289 let new_peer_id = envelope
5290 .payload
5291 .new_peer_id
5292 .ok_or_else(|| anyhow!("missing new peer id"))?;
5293 this.update(&mut cx, |this, cx| {
5294 let collaborator = this
5295 .collaborators
5296 .remove(&old_peer_id)
5297 .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
5298 let is_host = collaborator.replica_id == 0;
5299 this.collaborators.insert(new_peer_id, collaborator);
5300
5301 let buffers = this.shared_buffers.remove(&old_peer_id);
5302 log::info!(
5303 "peer {} became {}. moving buffers {:?}",
5304 old_peer_id,
5305 new_peer_id,
5306 &buffers
5307 );
5308 if let Some(buffers) = buffers {
5309 this.shared_buffers.insert(new_peer_id, buffers);
5310 }
5311
5312 if is_host {
5313 this.opened_buffers
5314 .retain(|_, buffer| !matches!(buffer, OpenBuffer::Operations(_)));
5315 this.buffer_ordered_messages_tx
5316 .unbounded_send(BufferOrderedMessage::Resync)
5317 .unwrap();
5318 }
5319
5320 cx.emit(Event::CollaboratorUpdated {
5321 old_peer_id,
5322 new_peer_id,
5323 });
5324 cx.notify();
5325 Ok(())
5326 })
5327 }
5328
5329 async fn handle_remove_collaborator(
5330 this: ModelHandle<Self>,
5331 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
5332 _: Arc<Client>,
5333 mut cx: AsyncAppContext,
5334 ) -> Result<()> {
5335 this.update(&mut cx, |this, cx| {
5336 let peer_id = envelope
5337 .payload
5338 .peer_id
5339 .ok_or_else(|| anyhow!("invalid peer id"))?;
5340 let replica_id = this
5341 .collaborators
5342 .remove(&peer_id)
5343 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
5344 .replica_id;
5345 for buffer in this.opened_buffers.values() {
5346 if let Some(buffer) = buffer.upgrade(cx) {
5347 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
5348 }
5349 }
5350 this.shared_buffers.remove(&peer_id);
5351
5352 cx.emit(Event::CollaboratorLeft(peer_id));
5353 cx.notify();
5354 Ok(())
5355 })
5356 }
5357
5358 async fn handle_update_project(
5359 this: ModelHandle<Self>,
5360 envelope: TypedEnvelope<proto::UpdateProject>,
5361 _: Arc<Client>,
5362 mut cx: AsyncAppContext,
5363 ) -> Result<()> {
5364 this.update(&mut cx, |this, cx| {
5365 // Don't handle messages that were sent before the response to us joining the project
5366 if envelope.message_id > this.join_project_response_message_id {
5367 this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
5368 }
5369 Ok(())
5370 })
5371 }
5372
5373 async fn handle_update_worktree(
5374 this: ModelHandle<Self>,
5375 envelope: TypedEnvelope<proto::UpdateWorktree>,
5376 _: Arc<Client>,
5377 mut cx: AsyncAppContext,
5378 ) -> Result<()> {
5379 this.update(&mut cx, |this, cx| {
5380 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5381 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5382 worktree.update(cx, |worktree, _| {
5383 let worktree = worktree.as_remote_mut().unwrap();
5384 worktree.update_from_remote(envelope.payload);
5385 });
5386 }
5387 Ok(())
5388 })
5389 }
5390
5391 async fn handle_create_project_entry(
5392 this: ModelHandle<Self>,
5393 envelope: TypedEnvelope<proto::CreateProjectEntry>,
5394 _: Arc<Client>,
5395 mut cx: AsyncAppContext,
5396 ) -> Result<proto::ProjectEntryResponse> {
5397 let worktree = this.update(&mut cx, |this, cx| {
5398 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5399 this.worktree_for_id(worktree_id, cx)
5400 .ok_or_else(|| anyhow!("worktree not found"))
5401 })?;
5402 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5403 let entry = worktree
5404 .update(&mut cx, |worktree, cx| {
5405 let worktree = worktree.as_local_mut().unwrap();
5406 let path = PathBuf::from(envelope.payload.path);
5407 worktree.create_entry(path, envelope.payload.is_directory, cx)
5408 })
5409 .await?;
5410 Ok(proto::ProjectEntryResponse {
5411 entry: Some((&entry).into()),
5412 worktree_scan_id: worktree_scan_id as u64,
5413 })
5414 }
5415
5416 async fn handle_rename_project_entry(
5417 this: ModelHandle<Self>,
5418 envelope: TypedEnvelope<proto::RenameProjectEntry>,
5419 _: Arc<Client>,
5420 mut cx: AsyncAppContext,
5421 ) -> Result<proto::ProjectEntryResponse> {
5422 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5423 let worktree = this.read_with(&cx, |this, cx| {
5424 this.worktree_for_entry(entry_id, cx)
5425 .ok_or_else(|| anyhow!("worktree not found"))
5426 })?;
5427 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5428 let entry = worktree
5429 .update(&mut cx, |worktree, cx| {
5430 let new_path = PathBuf::from(envelope.payload.new_path);
5431 worktree
5432 .as_local_mut()
5433 .unwrap()
5434 .rename_entry(entry_id, new_path, cx)
5435 .ok_or_else(|| anyhow!("invalid entry"))
5436 })?
5437 .await?;
5438 Ok(proto::ProjectEntryResponse {
5439 entry: Some((&entry).into()),
5440 worktree_scan_id: worktree_scan_id as u64,
5441 })
5442 }
5443
5444 async fn handle_copy_project_entry(
5445 this: ModelHandle<Self>,
5446 envelope: TypedEnvelope<proto::CopyProjectEntry>,
5447 _: Arc<Client>,
5448 mut cx: AsyncAppContext,
5449 ) -> Result<proto::ProjectEntryResponse> {
5450 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5451 let worktree = this.read_with(&cx, |this, cx| {
5452 this.worktree_for_entry(entry_id, cx)
5453 .ok_or_else(|| anyhow!("worktree not found"))
5454 })?;
5455 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5456 let entry = worktree
5457 .update(&mut cx, |worktree, cx| {
5458 let new_path = PathBuf::from(envelope.payload.new_path);
5459 worktree
5460 .as_local_mut()
5461 .unwrap()
5462 .copy_entry(entry_id, new_path, cx)
5463 .ok_or_else(|| anyhow!("invalid entry"))
5464 })?
5465 .await?;
5466 Ok(proto::ProjectEntryResponse {
5467 entry: Some((&entry).into()),
5468 worktree_scan_id: worktree_scan_id as u64,
5469 })
5470 }
5471
5472 async fn handle_delete_project_entry(
5473 this: ModelHandle<Self>,
5474 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
5475 _: Arc<Client>,
5476 mut cx: AsyncAppContext,
5477 ) -> Result<proto::ProjectEntryResponse> {
5478 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5479
5480 this.update(&mut cx, |_, cx| cx.emit(Event::DeletedEntry(entry_id)));
5481
5482 let worktree = this.read_with(&cx, |this, cx| {
5483 this.worktree_for_entry(entry_id, cx)
5484 .ok_or_else(|| anyhow!("worktree not found"))
5485 })?;
5486 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5487 worktree
5488 .update(&mut cx, |worktree, cx| {
5489 worktree
5490 .as_local_mut()
5491 .unwrap()
5492 .delete_entry(entry_id, cx)
5493 .ok_or_else(|| anyhow!("invalid entry"))
5494 })?
5495 .await?;
5496 Ok(proto::ProjectEntryResponse {
5497 entry: None,
5498 worktree_scan_id: worktree_scan_id as u64,
5499 })
5500 }
5501
5502 async fn handle_update_diagnostic_summary(
5503 this: ModelHandle<Self>,
5504 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
5505 _: Arc<Client>,
5506 mut cx: AsyncAppContext,
5507 ) -> Result<()> {
5508 this.update(&mut cx, |this, cx| {
5509 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5510 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5511 if let Some(summary) = envelope.payload.summary {
5512 let project_path = ProjectPath {
5513 worktree_id,
5514 path: Path::new(&summary.path).into(),
5515 };
5516 worktree.update(cx, |worktree, _| {
5517 worktree
5518 .as_remote_mut()
5519 .unwrap()
5520 .update_diagnostic_summary(project_path.path.clone(), &summary);
5521 });
5522 cx.emit(Event::DiagnosticsUpdated {
5523 language_server_id: LanguageServerId(summary.language_server_id as usize),
5524 path: project_path,
5525 });
5526 }
5527 }
5528 Ok(())
5529 })
5530 }
5531
5532 async fn handle_start_language_server(
5533 this: ModelHandle<Self>,
5534 envelope: TypedEnvelope<proto::StartLanguageServer>,
5535 _: Arc<Client>,
5536 mut cx: AsyncAppContext,
5537 ) -> Result<()> {
5538 let server = envelope
5539 .payload
5540 .server
5541 .ok_or_else(|| anyhow!("invalid server"))?;
5542 this.update(&mut cx, |this, cx| {
5543 this.language_server_statuses.insert(
5544 LanguageServerId(server.id as usize),
5545 LanguageServerStatus {
5546 name: server.name,
5547 pending_work: Default::default(),
5548 has_pending_diagnostic_updates: false,
5549 progress_tokens: Default::default(),
5550 },
5551 );
5552 cx.notify();
5553 });
5554 Ok(())
5555 }
5556
5557 async fn handle_update_language_server(
5558 this: ModelHandle<Self>,
5559 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
5560 _: Arc<Client>,
5561 mut cx: AsyncAppContext,
5562 ) -> Result<()> {
5563 this.update(&mut cx, |this, cx| {
5564 let language_server_id = LanguageServerId(envelope.payload.language_server_id as usize);
5565
5566 match envelope
5567 .payload
5568 .variant
5569 .ok_or_else(|| anyhow!("invalid variant"))?
5570 {
5571 proto::update_language_server::Variant::WorkStart(payload) => {
5572 this.on_lsp_work_start(
5573 language_server_id,
5574 payload.token,
5575 LanguageServerProgress {
5576 message: payload.message,
5577 percentage: payload.percentage.map(|p| p as usize),
5578 last_update_at: Instant::now(),
5579 },
5580 cx,
5581 );
5582 }
5583
5584 proto::update_language_server::Variant::WorkProgress(payload) => {
5585 this.on_lsp_work_progress(
5586 language_server_id,
5587 payload.token,
5588 LanguageServerProgress {
5589 message: payload.message,
5590 percentage: payload.percentage.map(|p| p as usize),
5591 last_update_at: Instant::now(),
5592 },
5593 cx,
5594 );
5595 }
5596
5597 proto::update_language_server::Variant::WorkEnd(payload) => {
5598 this.on_lsp_work_end(language_server_id, payload.token, cx);
5599 }
5600
5601 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
5602 this.disk_based_diagnostics_started(language_server_id, cx);
5603 }
5604
5605 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
5606 this.disk_based_diagnostics_finished(language_server_id, cx)
5607 }
5608 }
5609
5610 Ok(())
5611 })
5612 }
5613
5614 async fn handle_update_buffer(
5615 this: ModelHandle<Self>,
5616 envelope: TypedEnvelope<proto::UpdateBuffer>,
5617 _: Arc<Client>,
5618 mut cx: AsyncAppContext,
5619 ) -> Result<proto::Ack> {
5620 this.update(&mut cx, |this, cx| {
5621 let payload = envelope.payload.clone();
5622 let buffer_id = payload.buffer_id;
5623 let ops = payload
5624 .operations
5625 .into_iter()
5626 .map(language::proto::deserialize_operation)
5627 .collect::<Result<Vec<_>, _>>()?;
5628 let is_remote = this.is_remote();
5629 match this.opened_buffers.entry(buffer_id) {
5630 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
5631 OpenBuffer::Strong(buffer) => {
5632 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
5633 }
5634 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
5635 OpenBuffer::Weak(_) => {}
5636 },
5637 hash_map::Entry::Vacant(e) => {
5638 assert!(
5639 is_remote,
5640 "received buffer update from {:?}",
5641 envelope.original_sender_id
5642 );
5643 e.insert(OpenBuffer::Operations(ops));
5644 }
5645 }
5646 Ok(proto::Ack {})
5647 })
5648 }
5649
5650 async fn handle_create_buffer_for_peer(
5651 this: ModelHandle<Self>,
5652 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
5653 _: Arc<Client>,
5654 mut cx: AsyncAppContext,
5655 ) -> Result<()> {
5656 this.update(&mut cx, |this, cx| {
5657 match envelope
5658 .payload
5659 .variant
5660 .ok_or_else(|| anyhow!("missing variant"))?
5661 {
5662 proto::create_buffer_for_peer::Variant::State(mut state) => {
5663 let mut buffer_file = None;
5664 if let Some(file) = state.file.take() {
5665 let worktree_id = WorktreeId::from_proto(file.worktree_id);
5666 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
5667 anyhow!("no worktree found for id {}", file.worktree_id)
5668 })?;
5669 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
5670 as Arc<dyn language::File>);
5671 }
5672
5673 let buffer_id = state.id;
5674 let buffer = cx.add_model(|_| {
5675 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
5676 });
5677 this.incomplete_remote_buffers
5678 .insert(buffer_id, Some(buffer));
5679 }
5680 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
5681 let buffer = this
5682 .incomplete_remote_buffers
5683 .get(&chunk.buffer_id)
5684 .cloned()
5685 .flatten()
5686 .ok_or_else(|| {
5687 anyhow!(
5688 "received chunk for buffer {} without initial state",
5689 chunk.buffer_id
5690 )
5691 })?;
5692 let operations = chunk
5693 .operations
5694 .into_iter()
5695 .map(language::proto::deserialize_operation)
5696 .collect::<Result<Vec<_>>>()?;
5697 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
5698
5699 if chunk.is_last {
5700 this.incomplete_remote_buffers.remove(&chunk.buffer_id);
5701 this.register_buffer(&buffer, cx)?;
5702 }
5703 }
5704 }
5705
5706 Ok(())
5707 })
5708 }
5709
5710 async fn handle_update_diff_base(
5711 this: ModelHandle<Self>,
5712 envelope: TypedEnvelope<proto::UpdateDiffBase>,
5713 _: Arc<Client>,
5714 mut cx: AsyncAppContext,
5715 ) -> Result<()> {
5716 this.update(&mut cx, |this, cx| {
5717 let buffer_id = envelope.payload.buffer_id;
5718 let diff_base = envelope.payload.diff_base;
5719 if let Some(buffer) = this
5720 .opened_buffers
5721 .get_mut(&buffer_id)
5722 .and_then(|b| b.upgrade(cx))
5723 .or_else(|| {
5724 this.incomplete_remote_buffers
5725 .get(&buffer_id)
5726 .cloned()
5727 .flatten()
5728 })
5729 {
5730 buffer.update(cx, |buffer, cx| buffer.set_diff_base(diff_base, cx));
5731 }
5732 Ok(())
5733 })
5734 }
5735
5736 async fn handle_update_buffer_file(
5737 this: ModelHandle<Self>,
5738 envelope: TypedEnvelope<proto::UpdateBufferFile>,
5739 _: Arc<Client>,
5740 mut cx: AsyncAppContext,
5741 ) -> Result<()> {
5742 let buffer_id = envelope.payload.buffer_id;
5743
5744 this.update(&mut cx, |this, cx| {
5745 let payload = envelope.payload.clone();
5746 if let Some(buffer) = this
5747 .opened_buffers
5748 .get(&buffer_id)
5749 .and_then(|b| b.upgrade(cx))
5750 .or_else(|| {
5751 this.incomplete_remote_buffers
5752 .get(&buffer_id)
5753 .cloned()
5754 .flatten()
5755 })
5756 {
5757 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
5758 let worktree = this
5759 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
5760 .ok_or_else(|| anyhow!("no such worktree"))?;
5761 let file = File::from_proto(file, worktree, cx)?;
5762 buffer.update(cx, |buffer, cx| {
5763 buffer.file_updated(Arc::new(file), cx).detach();
5764 });
5765 this.detect_language_for_buffer(&buffer, cx);
5766 }
5767 Ok(())
5768 })
5769 }
5770
5771 async fn handle_save_buffer(
5772 this: ModelHandle<Self>,
5773 envelope: TypedEnvelope<proto::SaveBuffer>,
5774 _: Arc<Client>,
5775 mut cx: AsyncAppContext,
5776 ) -> Result<proto::BufferSaved> {
5777 let buffer_id = envelope.payload.buffer_id;
5778 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
5779 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
5780 let buffer = this
5781 .opened_buffers
5782 .get(&buffer_id)
5783 .and_then(|buffer| buffer.upgrade(cx))
5784 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
5785 anyhow::Ok((project_id, buffer))
5786 })?;
5787 buffer
5788 .update(&mut cx, |buffer, _| {
5789 buffer.wait_for_version(deserialize_version(&envelope.payload.version))
5790 })
5791 .await?;
5792 let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
5793
5794 let (saved_version, fingerprint, mtime) = this
5795 .update(&mut cx, |this, cx| this.save_buffer(buffer, cx))
5796 .await?;
5797 Ok(proto::BufferSaved {
5798 project_id,
5799 buffer_id,
5800 version: serialize_version(&saved_version),
5801 mtime: Some(mtime.into()),
5802 fingerprint: language::proto::serialize_fingerprint(fingerprint),
5803 })
5804 }
5805
5806 async fn handle_reload_buffers(
5807 this: ModelHandle<Self>,
5808 envelope: TypedEnvelope<proto::ReloadBuffers>,
5809 _: Arc<Client>,
5810 mut cx: AsyncAppContext,
5811 ) -> Result<proto::ReloadBuffersResponse> {
5812 let sender_id = envelope.original_sender_id()?;
5813 let reload = this.update(&mut cx, |this, cx| {
5814 let mut buffers = HashSet::default();
5815 for buffer_id in &envelope.payload.buffer_ids {
5816 buffers.insert(
5817 this.opened_buffers
5818 .get(buffer_id)
5819 .and_then(|buffer| buffer.upgrade(cx))
5820 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5821 );
5822 }
5823 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
5824 })?;
5825
5826 let project_transaction = reload.await?;
5827 let project_transaction = this.update(&mut cx, |this, cx| {
5828 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5829 });
5830 Ok(proto::ReloadBuffersResponse {
5831 transaction: Some(project_transaction),
5832 })
5833 }
5834
5835 async fn handle_synchronize_buffers(
5836 this: ModelHandle<Self>,
5837 envelope: TypedEnvelope<proto::SynchronizeBuffers>,
5838 _: Arc<Client>,
5839 mut cx: AsyncAppContext,
5840 ) -> Result<proto::SynchronizeBuffersResponse> {
5841 let project_id = envelope.payload.project_id;
5842 let mut response = proto::SynchronizeBuffersResponse {
5843 buffers: Default::default(),
5844 };
5845
5846 this.update(&mut cx, |this, cx| {
5847 let Some(guest_id) = envelope.original_sender_id else {
5848 log::error!("missing original_sender_id on SynchronizeBuffers request");
5849 return;
5850 };
5851
5852 this.shared_buffers.entry(guest_id).or_default().clear();
5853 for buffer in envelope.payload.buffers {
5854 let buffer_id = buffer.id;
5855 let remote_version = language::proto::deserialize_version(&buffer.version);
5856 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
5857 this.shared_buffers
5858 .entry(guest_id)
5859 .or_default()
5860 .insert(buffer_id);
5861
5862 let buffer = buffer.read(cx);
5863 response.buffers.push(proto::BufferVersion {
5864 id: buffer_id,
5865 version: language::proto::serialize_version(&buffer.version),
5866 });
5867
5868 let operations = buffer.serialize_ops(Some(remote_version), cx);
5869 let client = this.client.clone();
5870 if let Some(file) = buffer.file() {
5871 client
5872 .send(proto::UpdateBufferFile {
5873 project_id,
5874 buffer_id: buffer_id as u64,
5875 file: Some(file.to_proto()),
5876 })
5877 .log_err();
5878 }
5879
5880 client
5881 .send(proto::UpdateDiffBase {
5882 project_id,
5883 buffer_id: buffer_id as u64,
5884 diff_base: buffer.diff_base().map(Into::into),
5885 })
5886 .log_err();
5887
5888 client
5889 .send(proto::BufferReloaded {
5890 project_id,
5891 buffer_id,
5892 version: language::proto::serialize_version(buffer.saved_version()),
5893 mtime: Some(buffer.saved_mtime().into()),
5894 fingerprint: language::proto::serialize_fingerprint(
5895 buffer.saved_version_fingerprint(),
5896 ),
5897 line_ending: language::proto::serialize_line_ending(
5898 buffer.line_ending(),
5899 ) as i32,
5900 })
5901 .log_err();
5902
5903 cx.background()
5904 .spawn(
5905 async move {
5906 let operations = operations.await;
5907 for chunk in split_operations(operations) {
5908 client
5909 .request(proto::UpdateBuffer {
5910 project_id,
5911 buffer_id,
5912 operations: chunk,
5913 })
5914 .await?;
5915 }
5916 anyhow::Ok(())
5917 }
5918 .log_err(),
5919 )
5920 .detach();
5921 }
5922 }
5923 });
5924
5925 Ok(response)
5926 }
5927
5928 async fn handle_format_buffers(
5929 this: ModelHandle<Self>,
5930 envelope: TypedEnvelope<proto::FormatBuffers>,
5931 _: Arc<Client>,
5932 mut cx: AsyncAppContext,
5933 ) -> Result<proto::FormatBuffersResponse> {
5934 let sender_id = envelope.original_sender_id()?;
5935 let format = this.update(&mut cx, |this, cx| {
5936 let mut buffers = HashSet::default();
5937 for buffer_id in &envelope.payload.buffer_ids {
5938 buffers.insert(
5939 this.opened_buffers
5940 .get(buffer_id)
5941 .and_then(|buffer| buffer.upgrade(cx))
5942 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5943 );
5944 }
5945 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
5946 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
5947 })?;
5948
5949 let project_transaction = format.await?;
5950 let project_transaction = this.update(&mut cx, |this, cx| {
5951 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5952 });
5953 Ok(proto::FormatBuffersResponse {
5954 transaction: Some(project_transaction),
5955 })
5956 }
5957
5958 async fn handle_apply_additional_edits_for_completion(
5959 this: ModelHandle<Self>,
5960 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
5961 _: Arc<Client>,
5962 mut cx: AsyncAppContext,
5963 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
5964 let (buffer, completion) = this.update(&mut cx, |this, cx| {
5965 let buffer = this
5966 .opened_buffers
5967 .get(&envelope.payload.buffer_id)
5968 .and_then(|buffer| buffer.upgrade(cx))
5969 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5970 let language = buffer.read(cx).language();
5971 let completion = language::proto::deserialize_completion(
5972 envelope
5973 .payload
5974 .completion
5975 .ok_or_else(|| anyhow!("invalid completion"))?,
5976 language.cloned(),
5977 );
5978 Ok::<_, anyhow::Error>((buffer, completion))
5979 })?;
5980
5981 let completion = completion.await?;
5982
5983 let apply_additional_edits = this.update(&mut cx, |this, cx| {
5984 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
5985 });
5986
5987 Ok(proto::ApplyCompletionAdditionalEditsResponse {
5988 transaction: apply_additional_edits
5989 .await?
5990 .as_ref()
5991 .map(language::proto::serialize_transaction),
5992 })
5993 }
5994
5995 async fn handle_apply_code_action(
5996 this: ModelHandle<Self>,
5997 envelope: TypedEnvelope<proto::ApplyCodeAction>,
5998 _: Arc<Client>,
5999 mut cx: AsyncAppContext,
6000 ) -> Result<proto::ApplyCodeActionResponse> {
6001 let sender_id = envelope.original_sender_id()?;
6002 let action = language::proto::deserialize_code_action(
6003 envelope
6004 .payload
6005 .action
6006 .ok_or_else(|| anyhow!("invalid action"))?,
6007 )?;
6008 let apply_code_action = this.update(&mut cx, |this, cx| {
6009 let buffer = this
6010 .opened_buffers
6011 .get(&envelope.payload.buffer_id)
6012 .and_then(|buffer| buffer.upgrade(cx))
6013 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
6014 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
6015 })?;
6016
6017 let project_transaction = apply_code_action.await?;
6018 let project_transaction = this.update(&mut cx, |this, cx| {
6019 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
6020 });
6021 Ok(proto::ApplyCodeActionResponse {
6022 transaction: Some(project_transaction),
6023 })
6024 }
6025
6026 async fn handle_on_type_formatting(
6027 this: ModelHandle<Self>,
6028 envelope: TypedEnvelope<proto::OnTypeFormatting>,
6029 _: Arc<Client>,
6030 mut cx: AsyncAppContext,
6031 ) -> Result<proto::OnTypeFormattingResponse> {
6032 let on_type_formatting = this.update(&mut cx, |this, cx| {
6033 let buffer = this
6034 .opened_buffers
6035 .get(&envelope.payload.buffer_id)
6036 .and_then(|buffer| buffer.upgrade(cx))
6037 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
6038 let position = envelope
6039 .payload
6040 .position
6041 .and_then(deserialize_anchor)
6042 .ok_or_else(|| anyhow!("invalid position"))?;
6043 Ok::<_, anyhow::Error>(this.apply_on_type_formatting(
6044 buffer,
6045 position,
6046 envelope.payload.trigger.clone(),
6047 cx,
6048 ))
6049 })?;
6050
6051 let transaction = on_type_formatting
6052 .await?
6053 .as_ref()
6054 .map(language::proto::serialize_transaction);
6055 Ok(proto::OnTypeFormattingResponse { transaction })
6056 }
6057
6058 async fn handle_lsp_command<T: LspCommand>(
6059 this: ModelHandle<Self>,
6060 envelope: TypedEnvelope<T::ProtoRequest>,
6061 _: Arc<Client>,
6062 mut cx: AsyncAppContext,
6063 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
6064 where
6065 <T::LspRequest as lsp::request::Request>::Result: Send,
6066 {
6067 let sender_id = envelope.original_sender_id()?;
6068 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
6069 let buffer_handle = this.read_with(&cx, |this, _| {
6070 this.opened_buffers
6071 .get(&buffer_id)
6072 .and_then(|buffer| buffer.upgrade(&cx))
6073 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
6074 })?;
6075 let request = T::from_proto(
6076 envelope.payload,
6077 this.clone(),
6078 buffer_handle.clone(),
6079 cx.clone(),
6080 )
6081 .await?;
6082 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
6083 let response = this
6084 .update(&mut cx, |this, cx| {
6085 this.request_lsp(buffer_handle, request, cx)
6086 })
6087 .await?;
6088 this.update(&mut cx, |this, cx| {
6089 Ok(T::response_to_proto(
6090 response,
6091 this,
6092 sender_id,
6093 &buffer_version,
6094 cx,
6095 ))
6096 })
6097 }
6098
6099 async fn handle_get_project_symbols(
6100 this: ModelHandle<Self>,
6101 envelope: TypedEnvelope<proto::GetProjectSymbols>,
6102 _: Arc<Client>,
6103 mut cx: AsyncAppContext,
6104 ) -> Result<proto::GetProjectSymbolsResponse> {
6105 let symbols = this
6106 .update(&mut cx, |this, cx| {
6107 this.symbols(&envelope.payload.query, cx)
6108 })
6109 .await?;
6110
6111 Ok(proto::GetProjectSymbolsResponse {
6112 symbols: symbols.iter().map(serialize_symbol).collect(),
6113 })
6114 }
6115
6116 async fn handle_search_project(
6117 this: ModelHandle<Self>,
6118 envelope: TypedEnvelope<proto::SearchProject>,
6119 _: Arc<Client>,
6120 mut cx: AsyncAppContext,
6121 ) -> Result<proto::SearchProjectResponse> {
6122 let peer_id = envelope.original_sender_id()?;
6123 let query = SearchQuery::from_proto(envelope.payload)?;
6124 let result = this
6125 .update(&mut cx, |this, cx| this.search(query, cx))
6126 .await?;
6127
6128 this.update(&mut cx, |this, cx| {
6129 let mut locations = Vec::new();
6130 for (buffer, ranges) in result {
6131 for range in ranges {
6132 let start = serialize_anchor(&range.start);
6133 let end = serialize_anchor(&range.end);
6134 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
6135 locations.push(proto::Location {
6136 buffer_id,
6137 start: Some(start),
6138 end: Some(end),
6139 });
6140 }
6141 }
6142 Ok(proto::SearchProjectResponse { locations })
6143 })
6144 }
6145
6146 async fn handle_open_buffer_for_symbol(
6147 this: ModelHandle<Self>,
6148 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
6149 _: Arc<Client>,
6150 mut cx: AsyncAppContext,
6151 ) -> Result<proto::OpenBufferForSymbolResponse> {
6152 let peer_id = envelope.original_sender_id()?;
6153 let symbol = envelope
6154 .payload
6155 .symbol
6156 .ok_or_else(|| anyhow!("invalid symbol"))?;
6157 let symbol = this
6158 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
6159 .await?;
6160 let symbol = this.read_with(&cx, |this, _| {
6161 let signature = this.symbol_signature(&symbol.path);
6162 if signature == symbol.signature {
6163 Ok(symbol)
6164 } else {
6165 Err(anyhow!("invalid symbol signature"))
6166 }
6167 })?;
6168 let buffer = this
6169 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
6170 .await?;
6171
6172 Ok(proto::OpenBufferForSymbolResponse {
6173 buffer_id: this.update(&mut cx, |this, cx| {
6174 this.create_buffer_for_peer(&buffer, peer_id, cx)
6175 }),
6176 })
6177 }
6178
6179 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
6180 let mut hasher = Sha256::new();
6181 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
6182 hasher.update(project_path.path.to_string_lossy().as_bytes());
6183 hasher.update(self.nonce.to_be_bytes());
6184 hasher.finalize().as_slice().try_into().unwrap()
6185 }
6186
6187 async fn handle_open_buffer_by_id(
6188 this: ModelHandle<Self>,
6189 envelope: TypedEnvelope<proto::OpenBufferById>,
6190 _: Arc<Client>,
6191 mut cx: AsyncAppContext,
6192 ) -> Result<proto::OpenBufferResponse> {
6193 let peer_id = envelope.original_sender_id()?;
6194 let buffer = this
6195 .update(&mut cx, |this, cx| {
6196 this.open_buffer_by_id(envelope.payload.id, cx)
6197 })
6198 .await?;
6199 this.update(&mut cx, |this, cx| {
6200 Ok(proto::OpenBufferResponse {
6201 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
6202 })
6203 })
6204 }
6205
6206 async fn handle_open_buffer_by_path(
6207 this: ModelHandle<Self>,
6208 envelope: TypedEnvelope<proto::OpenBufferByPath>,
6209 _: Arc<Client>,
6210 mut cx: AsyncAppContext,
6211 ) -> Result<proto::OpenBufferResponse> {
6212 let peer_id = envelope.original_sender_id()?;
6213 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
6214 let open_buffer = this.update(&mut cx, |this, cx| {
6215 this.open_buffer(
6216 ProjectPath {
6217 worktree_id,
6218 path: PathBuf::from(envelope.payload.path).into(),
6219 },
6220 cx,
6221 )
6222 });
6223
6224 let buffer = open_buffer.await?;
6225 this.update(&mut cx, |this, cx| {
6226 Ok(proto::OpenBufferResponse {
6227 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
6228 })
6229 })
6230 }
6231
6232 fn serialize_project_transaction_for_peer(
6233 &mut self,
6234 project_transaction: ProjectTransaction,
6235 peer_id: proto::PeerId,
6236 cx: &mut AppContext,
6237 ) -> proto::ProjectTransaction {
6238 let mut serialized_transaction = proto::ProjectTransaction {
6239 buffer_ids: Default::default(),
6240 transactions: Default::default(),
6241 };
6242 for (buffer, transaction) in project_transaction.0 {
6243 serialized_transaction
6244 .buffer_ids
6245 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
6246 serialized_transaction
6247 .transactions
6248 .push(language::proto::serialize_transaction(&transaction));
6249 }
6250 serialized_transaction
6251 }
6252
6253 fn deserialize_project_transaction(
6254 &mut self,
6255 message: proto::ProjectTransaction,
6256 push_to_history: bool,
6257 cx: &mut ModelContext<Self>,
6258 ) -> Task<Result<ProjectTransaction>> {
6259 cx.spawn(|this, mut cx| async move {
6260 let mut project_transaction = ProjectTransaction::default();
6261 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
6262 {
6263 let buffer = this
6264 .update(&mut cx, |this, cx| {
6265 this.wait_for_remote_buffer(buffer_id, cx)
6266 })
6267 .await?;
6268 let transaction = language::proto::deserialize_transaction(transaction)?;
6269 project_transaction.0.insert(buffer, transaction);
6270 }
6271
6272 for (buffer, transaction) in &project_transaction.0 {
6273 buffer
6274 .update(&mut cx, |buffer, _| {
6275 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
6276 })
6277 .await?;
6278
6279 if push_to_history {
6280 buffer.update(&mut cx, |buffer, _| {
6281 buffer.push_transaction(transaction.clone(), Instant::now());
6282 });
6283 }
6284 }
6285
6286 Ok(project_transaction)
6287 })
6288 }
6289
6290 fn create_buffer_for_peer(
6291 &mut self,
6292 buffer: &ModelHandle<Buffer>,
6293 peer_id: proto::PeerId,
6294 cx: &mut AppContext,
6295 ) -> u64 {
6296 let buffer_id = buffer.read(cx).remote_id();
6297 if let Some(ProjectClientState::Local { updates_tx, .. }) = &self.client_state {
6298 updates_tx
6299 .unbounded_send(LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id })
6300 .ok();
6301 }
6302 buffer_id
6303 }
6304
6305 fn wait_for_remote_buffer(
6306 &mut self,
6307 id: u64,
6308 cx: &mut ModelContext<Self>,
6309 ) -> Task<Result<ModelHandle<Buffer>>> {
6310 let mut opened_buffer_rx = self.opened_buffer.1.clone();
6311
6312 cx.spawn_weak(|this, mut cx| async move {
6313 let buffer = loop {
6314 let Some(this) = this.upgrade(&cx) else {
6315 return Err(anyhow!("project dropped"));
6316 };
6317
6318 let buffer = this.read_with(&cx, |this, cx| {
6319 this.opened_buffers
6320 .get(&id)
6321 .and_then(|buffer| buffer.upgrade(cx))
6322 });
6323
6324 if let Some(buffer) = buffer {
6325 break buffer;
6326 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
6327 return Err(anyhow!("disconnected before buffer {} could be opened", id));
6328 }
6329
6330 this.update(&mut cx, |this, _| {
6331 this.incomplete_remote_buffers.entry(id).or_default();
6332 });
6333 drop(this);
6334
6335 opened_buffer_rx
6336 .next()
6337 .await
6338 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
6339 };
6340
6341 Ok(buffer)
6342 })
6343 }
6344
6345 fn synchronize_remote_buffers(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
6346 let project_id = match self.client_state.as_ref() {
6347 Some(ProjectClientState::Remote {
6348 sharing_has_stopped,
6349 remote_id,
6350 ..
6351 }) => {
6352 if *sharing_has_stopped {
6353 return Task::ready(Err(anyhow!(
6354 "can't synchronize remote buffers on a readonly project"
6355 )));
6356 } else {
6357 *remote_id
6358 }
6359 }
6360 Some(ProjectClientState::Local { .. }) | None => {
6361 return Task::ready(Err(anyhow!(
6362 "can't synchronize remote buffers on a local project"
6363 )))
6364 }
6365 };
6366
6367 let client = self.client.clone();
6368 cx.spawn(|this, cx| async move {
6369 let (buffers, incomplete_buffer_ids) = this.read_with(&cx, |this, cx| {
6370 let buffers = this
6371 .opened_buffers
6372 .iter()
6373 .filter_map(|(id, buffer)| {
6374 let buffer = buffer.upgrade(cx)?;
6375 Some(proto::BufferVersion {
6376 id: *id,
6377 version: language::proto::serialize_version(&buffer.read(cx).version),
6378 })
6379 })
6380 .collect();
6381 let incomplete_buffer_ids = this
6382 .incomplete_remote_buffers
6383 .keys()
6384 .copied()
6385 .collect::<Vec<_>>();
6386
6387 (buffers, incomplete_buffer_ids)
6388 });
6389 let response = client
6390 .request(proto::SynchronizeBuffers {
6391 project_id,
6392 buffers,
6393 })
6394 .await?;
6395
6396 let send_updates_for_buffers = response.buffers.into_iter().map(|buffer| {
6397 let client = client.clone();
6398 let buffer_id = buffer.id;
6399 let remote_version = language::proto::deserialize_version(&buffer.version);
6400 this.read_with(&cx, |this, cx| {
6401 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
6402 let operations = buffer.read(cx).serialize_ops(Some(remote_version), cx);
6403 cx.background().spawn(async move {
6404 let operations = operations.await;
6405 for chunk in split_operations(operations) {
6406 client
6407 .request(proto::UpdateBuffer {
6408 project_id,
6409 buffer_id,
6410 operations: chunk,
6411 })
6412 .await?;
6413 }
6414 anyhow::Ok(())
6415 })
6416 } else {
6417 Task::ready(Ok(()))
6418 }
6419 })
6420 });
6421
6422 // Any incomplete buffers have open requests waiting. Request that the host sends
6423 // creates these buffers for us again to unblock any waiting futures.
6424 for id in incomplete_buffer_ids {
6425 cx.background()
6426 .spawn(client.request(proto::OpenBufferById { project_id, id }))
6427 .detach();
6428 }
6429
6430 futures::future::join_all(send_updates_for_buffers)
6431 .await
6432 .into_iter()
6433 .collect()
6434 })
6435 }
6436
6437 pub fn worktree_metadata_protos(&self, cx: &AppContext) -> Vec<proto::WorktreeMetadata> {
6438 self.worktrees(cx)
6439 .map(|worktree| {
6440 let worktree = worktree.read(cx);
6441 proto::WorktreeMetadata {
6442 id: worktree.id().to_proto(),
6443 root_name: worktree.root_name().into(),
6444 visible: worktree.is_visible(),
6445 abs_path: worktree.abs_path().to_string_lossy().into(),
6446 }
6447 })
6448 .collect()
6449 }
6450
6451 fn set_worktrees_from_proto(
6452 &mut self,
6453 worktrees: Vec<proto::WorktreeMetadata>,
6454 cx: &mut ModelContext<Project>,
6455 ) -> Result<()> {
6456 let replica_id = self.replica_id();
6457 let remote_id = self.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
6458
6459 let mut old_worktrees_by_id = self
6460 .worktrees
6461 .drain(..)
6462 .filter_map(|worktree| {
6463 let worktree = worktree.upgrade(cx)?;
6464 Some((worktree.read(cx).id(), worktree))
6465 })
6466 .collect::<HashMap<_, _>>();
6467
6468 for worktree in worktrees {
6469 if let Some(old_worktree) =
6470 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
6471 {
6472 self.worktrees.push(WorktreeHandle::Strong(old_worktree));
6473 } else {
6474 let worktree =
6475 Worktree::remote(remote_id, replica_id, worktree, self.client.clone(), cx);
6476 let _ = self.add_worktree(&worktree, cx);
6477 }
6478 }
6479
6480 self.metadata_changed(cx);
6481 for (id, _) in old_worktrees_by_id {
6482 cx.emit(Event::WorktreeRemoved(id));
6483 }
6484
6485 Ok(())
6486 }
6487
6488 fn set_collaborators_from_proto(
6489 &mut self,
6490 messages: Vec<proto::Collaborator>,
6491 cx: &mut ModelContext<Self>,
6492 ) -> Result<()> {
6493 let mut collaborators = HashMap::default();
6494 for message in messages {
6495 let collaborator = Collaborator::from_proto(message)?;
6496 collaborators.insert(collaborator.peer_id, collaborator);
6497 }
6498 for old_peer_id in self.collaborators.keys() {
6499 if !collaborators.contains_key(old_peer_id) {
6500 cx.emit(Event::CollaboratorLeft(*old_peer_id));
6501 }
6502 }
6503 self.collaborators = collaborators;
6504 Ok(())
6505 }
6506
6507 fn deserialize_symbol(
6508 &self,
6509 serialized_symbol: proto::Symbol,
6510 ) -> impl Future<Output = Result<Symbol>> {
6511 let languages = self.languages.clone();
6512 async move {
6513 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
6514 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
6515 let start = serialized_symbol
6516 .start
6517 .ok_or_else(|| anyhow!("invalid start"))?;
6518 let end = serialized_symbol
6519 .end
6520 .ok_or_else(|| anyhow!("invalid end"))?;
6521 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
6522 let path = ProjectPath {
6523 worktree_id,
6524 path: PathBuf::from(serialized_symbol.path).into(),
6525 };
6526 let language = languages
6527 .language_for_file(&path.path, None)
6528 .await
6529 .log_err();
6530 Ok(Symbol {
6531 language_server_name: LanguageServerName(
6532 serialized_symbol.language_server_name.into(),
6533 ),
6534 source_worktree_id,
6535 path,
6536 label: {
6537 match language {
6538 Some(language) => {
6539 language
6540 .label_for_symbol(&serialized_symbol.name, kind)
6541 .await
6542 }
6543 None => None,
6544 }
6545 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
6546 },
6547
6548 name: serialized_symbol.name,
6549 range: Unclipped(PointUtf16::new(start.row, start.column))
6550 ..Unclipped(PointUtf16::new(end.row, end.column)),
6551 kind,
6552 signature: serialized_symbol
6553 .signature
6554 .try_into()
6555 .map_err(|_| anyhow!("invalid signature"))?,
6556 })
6557 }
6558 }
6559
6560 async fn handle_buffer_saved(
6561 this: ModelHandle<Self>,
6562 envelope: TypedEnvelope<proto::BufferSaved>,
6563 _: Arc<Client>,
6564 mut cx: AsyncAppContext,
6565 ) -> Result<()> {
6566 let fingerprint = deserialize_fingerprint(&envelope.payload.fingerprint)?;
6567 let version = deserialize_version(&envelope.payload.version);
6568 let mtime = envelope
6569 .payload
6570 .mtime
6571 .ok_or_else(|| anyhow!("missing mtime"))?
6572 .into();
6573
6574 this.update(&mut cx, |this, cx| {
6575 let buffer = this
6576 .opened_buffers
6577 .get(&envelope.payload.buffer_id)
6578 .and_then(|buffer| buffer.upgrade(cx))
6579 .or_else(|| {
6580 this.incomplete_remote_buffers
6581 .get(&envelope.payload.buffer_id)
6582 .and_then(|b| b.clone())
6583 });
6584 if let Some(buffer) = buffer {
6585 buffer.update(cx, |buffer, cx| {
6586 buffer.did_save(version, fingerprint, mtime, cx);
6587 });
6588 }
6589 Ok(())
6590 })
6591 }
6592
6593 async fn handle_buffer_reloaded(
6594 this: ModelHandle<Self>,
6595 envelope: TypedEnvelope<proto::BufferReloaded>,
6596 _: Arc<Client>,
6597 mut cx: AsyncAppContext,
6598 ) -> Result<()> {
6599 let payload = envelope.payload;
6600 let version = deserialize_version(&payload.version);
6601 let fingerprint = deserialize_fingerprint(&payload.fingerprint)?;
6602 let line_ending = deserialize_line_ending(
6603 proto::LineEnding::from_i32(payload.line_ending)
6604 .ok_or_else(|| anyhow!("missing line ending"))?,
6605 );
6606 let mtime = payload
6607 .mtime
6608 .ok_or_else(|| anyhow!("missing mtime"))?
6609 .into();
6610 this.update(&mut cx, |this, cx| {
6611 let buffer = this
6612 .opened_buffers
6613 .get(&payload.buffer_id)
6614 .and_then(|buffer| buffer.upgrade(cx))
6615 .or_else(|| {
6616 this.incomplete_remote_buffers
6617 .get(&payload.buffer_id)
6618 .cloned()
6619 .flatten()
6620 });
6621 if let Some(buffer) = buffer {
6622 buffer.update(cx, |buffer, cx| {
6623 buffer.did_reload(version, fingerprint, line_ending, mtime, cx);
6624 });
6625 }
6626 Ok(())
6627 })
6628 }
6629
6630 #[allow(clippy::type_complexity)]
6631 fn edits_from_lsp(
6632 &mut self,
6633 buffer: &ModelHandle<Buffer>,
6634 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
6635 server_id: LanguageServerId,
6636 version: Option<i32>,
6637 cx: &mut ModelContext<Self>,
6638 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
6639 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx);
6640 cx.background().spawn(async move {
6641 let snapshot = snapshot?;
6642 let mut lsp_edits = lsp_edits
6643 .into_iter()
6644 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
6645 .collect::<Vec<_>>();
6646 lsp_edits.sort_by_key(|(range, _)| range.start);
6647
6648 let mut lsp_edits = lsp_edits.into_iter().peekable();
6649 let mut edits = Vec::new();
6650 while let Some((range, mut new_text)) = lsp_edits.next() {
6651 // Clip invalid ranges provided by the language server.
6652 let mut range = snapshot.clip_point_utf16(range.start, Bias::Left)
6653 ..snapshot.clip_point_utf16(range.end, Bias::Left);
6654
6655 // Combine any LSP edits that are adjacent.
6656 //
6657 // Also, combine LSP edits that are separated from each other by only
6658 // a newline. This is important because for some code actions,
6659 // Rust-analyzer rewrites the entire buffer via a series of edits that
6660 // are separated by unchanged newline characters.
6661 //
6662 // In order for the diffing logic below to work properly, any edits that
6663 // cancel each other out must be combined into one.
6664 while let Some((next_range, next_text)) = lsp_edits.peek() {
6665 if next_range.start.0 > range.end {
6666 if next_range.start.0.row > range.end.row + 1
6667 || next_range.start.0.column > 0
6668 || snapshot.clip_point_utf16(
6669 Unclipped(PointUtf16::new(range.end.row, u32::MAX)),
6670 Bias::Left,
6671 ) > range.end
6672 {
6673 break;
6674 }
6675 new_text.push('\n');
6676 }
6677 range.end = snapshot.clip_point_utf16(next_range.end, Bias::Left);
6678 new_text.push_str(next_text);
6679 lsp_edits.next();
6680 }
6681
6682 // For multiline edits, perform a diff of the old and new text so that
6683 // we can identify the changes more precisely, preserving the locations
6684 // of any anchors positioned in the unchanged regions.
6685 if range.end.row > range.start.row {
6686 let mut offset = range.start.to_offset(&snapshot);
6687 let old_text = snapshot.text_for_range(range).collect::<String>();
6688
6689 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
6690 let mut moved_since_edit = true;
6691 for change in diff.iter_all_changes() {
6692 let tag = change.tag();
6693 let value = change.value();
6694 match tag {
6695 ChangeTag::Equal => {
6696 offset += value.len();
6697 moved_since_edit = true;
6698 }
6699 ChangeTag::Delete => {
6700 let start = snapshot.anchor_after(offset);
6701 let end = snapshot.anchor_before(offset + value.len());
6702 if moved_since_edit {
6703 edits.push((start..end, String::new()));
6704 } else {
6705 edits.last_mut().unwrap().0.end = end;
6706 }
6707 offset += value.len();
6708 moved_since_edit = false;
6709 }
6710 ChangeTag::Insert => {
6711 if moved_since_edit {
6712 let anchor = snapshot.anchor_after(offset);
6713 edits.push((anchor..anchor, value.to_string()));
6714 } else {
6715 edits.last_mut().unwrap().1.push_str(value);
6716 }
6717 moved_since_edit = false;
6718 }
6719 }
6720 }
6721 } else if range.end == range.start {
6722 let anchor = snapshot.anchor_after(range.start);
6723 edits.push((anchor..anchor, new_text));
6724 } else {
6725 let edit_start = snapshot.anchor_after(range.start);
6726 let edit_end = snapshot.anchor_before(range.end);
6727 edits.push((edit_start..edit_end, new_text));
6728 }
6729 }
6730
6731 Ok(edits)
6732 })
6733 }
6734
6735 fn buffer_snapshot_for_lsp_version(
6736 &mut self,
6737 buffer: &ModelHandle<Buffer>,
6738 server_id: LanguageServerId,
6739 version: Option<i32>,
6740 cx: &AppContext,
6741 ) -> Result<TextBufferSnapshot> {
6742 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
6743
6744 if let Some(version) = version {
6745 let buffer_id = buffer.read(cx).remote_id();
6746 let snapshots = self
6747 .buffer_snapshots
6748 .get_mut(&buffer_id)
6749 .and_then(|m| m.get_mut(&server_id))
6750 .ok_or_else(|| {
6751 anyhow!("no snapshots found for buffer {buffer_id} and server {server_id}")
6752 })?;
6753
6754 let found_snapshot = snapshots
6755 .binary_search_by_key(&version, |e| e.version)
6756 .map(|ix| snapshots[ix].snapshot.clone())
6757 .map_err(|_| {
6758 anyhow!("snapshot not found for buffer {buffer_id} server {server_id} at version {version}")
6759 })?;
6760
6761 snapshots.retain(|snapshot| snapshot.version + OLD_VERSIONS_TO_RETAIN >= version);
6762 Ok(found_snapshot)
6763 } else {
6764 Ok((buffer.read(cx)).text_snapshot())
6765 }
6766 }
6767
6768 pub fn language_servers(
6769 &self,
6770 ) -> impl '_ + Iterator<Item = (LanguageServerId, LanguageServerName, WorktreeId)> {
6771 self.language_server_ids
6772 .iter()
6773 .map(|((worktree_id, server_name), server_id)| {
6774 (*server_id, server_name.clone(), *worktree_id)
6775 })
6776 }
6777
6778 pub fn language_server_for_id(&self, id: LanguageServerId) -> Option<Arc<LanguageServer>> {
6779 if let LanguageServerState::Running { server, .. } = self.language_servers.get(&id)? {
6780 Some(server.clone())
6781 } else {
6782 None
6783 }
6784 }
6785
6786 pub fn language_servers_for_buffer(
6787 &self,
6788 buffer: &Buffer,
6789 cx: &AppContext,
6790 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6791 self.language_server_ids_for_buffer(buffer, cx)
6792 .into_iter()
6793 .filter_map(|server_id| {
6794 let server = self.language_servers.get(&server_id)?;
6795 if let LanguageServerState::Running {
6796 adapter, server, ..
6797 } = server
6798 {
6799 Some((adapter, server))
6800 } else {
6801 None
6802 }
6803 })
6804 }
6805
6806 fn primary_language_servers_for_buffer(
6807 &self,
6808 buffer: &Buffer,
6809 cx: &AppContext,
6810 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6811 self.language_servers_for_buffer(buffer, cx).next()
6812 }
6813
6814 fn language_server_for_buffer(
6815 &self,
6816 buffer: &Buffer,
6817 server_id: LanguageServerId,
6818 cx: &AppContext,
6819 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6820 self.language_servers_for_buffer(buffer, cx)
6821 .find(|(_, s)| s.server_id() == server_id)
6822 }
6823
6824 fn language_server_ids_for_buffer(
6825 &self,
6826 buffer: &Buffer,
6827 cx: &AppContext,
6828 ) -> Vec<LanguageServerId> {
6829 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
6830 let worktree_id = file.worktree_id(cx);
6831 language
6832 .lsp_adapters()
6833 .iter()
6834 .flat_map(|adapter| {
6835 let key = (worktree_id, adapter.name.clone());
6836 self.language_server_ids.get(&key).copied()
6837 })
6838 .collect()
6839 } else {
6840 Vec::new()
6841 }
6842 }
6843}
6844
6845impl WorktreeHandle {
6846 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
6847 match self {
6848 WorktreeHandle::Strong(handle) => Some(handle.clone()),
6849 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
6850 }
6851 }
6852}
6853
6854impl OpenBuffer {
6855 pub fn upgrade(&self, cx: &impl BorrowAppContext) -> Option<ModelHandle<Buffer>> {
6856 match self {
6857 OpenBuffer::Strong(handle) => Some(handle.clone()),
6858 OpenBuffer::Weak(handle) => handle.upgrade(cx),
6859 OpenBuffer::Operations(_) => None,
6860 }
6861 }
6862}
6863
6864pub struct PathMatchCandidateSet {
6865 pub snapshot: Snapshot,
6866 pub include_ignored: bool,
6867 pub include_root_name: bool,
6868}
6869
6870impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
6871 type Candidates = PathMatchCandidateSetIter<'a>;
6872
6873 fn id(&self) -> usize {
6874 self.snapshot.id().to_usize()
6875 }
6876
6877 fn len(&self) -> usize {
6878 if self.include_ignored {
6879 self.snapshot.file_count()
6880 } else {
6881 self.snapshot.visible_file_count()
6882 }
6883 }
6884
6885 fn prefix(&self) -> Arc<str> {
6886 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
6887 self.snapshot.root_name().into()
6888 } else if self.include_root_name {
6889 format!("{}/", self.snapshot.root_name()).into()
6890 } else {
6891 "".into()
6892 }
6893 }
6894
6895 fn candidates(&'a self, start: usize) -> Self::Candidates {
6896 PathMatchCandidateSetIter {
6897 traversal: self.snapshot.files(self.include_ignored, start),
6898 }
6899 }
6900}
6901
6902pub struct PathMatchCandidateSetIter<'a> {
6903 traversal: Traversal<'a>,
6904}
6905
6906impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
6907 type Item = fuzzy::PathMatchCandidate<'a>;
6908
6909 fn next(&mut self) -> Option<Self::Item> {
6910 self.traversal.next().map(|entry| {
6911 if let EntryKind::File(char_bag) = entry.kind {
6912 fuzzy::PathMatchCandidate {
6913 path: &entry.path,
6914 char_bag,
6915 }
6916 } else {
6917 unreachable!()
6918 }
6919 })
6920 }
6921}
6922
6923impl Entity for Project {
6924 type Event = Event;
6925
6926 fn release(&mut self, cx: &mut gpui::AppContext) {
6927 match &self.client_state {
6928 Some(ProjectClientState::Local { .. }) => {
6929 let _ = self.unshare_internal(cx);
6930 }
6931 Some(ProjectClientState::Remote { remote_id, .. }) => {
6932 let _ = self.client.send(proto::LeaveProject {
6933 project_id: *remote_id,
6934 });
6935 self.disconnected_from_host_internal(cx);
6936 }
6937 _ => {}
6938 }
6939 }
6940
6941 fn app_will_quit(
6942 &mut self,
6943 _: &mut AppContext,
6944 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
6945 let shutdown_futures = self
6946 .language_servers
6947 .drain()
6948 .map(|(_, server_state)| async {
6949 match server_state {
6950 LanguageServerState::Running { server, .. } => server.shutdown()?.await,
6951 LanguageServerState::Starting(starting_server) => {
6952 starting_server.await?.shutdown()?.await
6953 }
6954 }
6955 })
6956 .collect::<Vec<_>>();
6957
6958 Some(
6959 async move {
6960 futures::future::join_all(shutdown_futures).await;
6961 }
6962 .boxed(),
6963 )
6964 }
6965}
6966
6967impl Collaborator {
6968 fn from_proto(message: proto::Collaborator) -> Result<Self> {
6969 Ok(Self {
6970 peer_id: message.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?,
6971 replica_id: message.replica_id as ReplicaId,
6972 })
6973 }
6974}
6975
6976impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
6977 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
6978 Self {
6979 worktree_id,
6980 path: path.as_ref().into(),
6981 }
6982 }
6983}
6984
6985fn split_operations(
6986 mut operations: Vec<proto::Operation>,
6987) -> impl Iterator<Item = Vec<proto::Operation>> {
6988 #[cfg(any(test, feature = "test-support"))]
6989 const CHUNK_SIZE: usize = 5;
6990
6991 #[cfg(not(any(test, feature = "test-support")))]
6992 const CHUNK_SIZE: usize = 100;
6993
6994 let mut done = false;
6995 std::iter::from_fn(move || {
6996 if done {
6997 return None;
6998 }
6999
7000 let operations = operations
7001 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
7002 .collect::<Vec<_>>();
7003 if operations.is_empty() {
7004 done = true;
7005 }
7006 Some(operations)
7007 })
7008}
7009
7010fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
7011 proto::Symbol {
7012 language_server_name: symbol.language_server_name.0.to_string(),
7013 source_worktree_id: symbol.source_worktree_id.to_proto(),
7014 worktree_id: symbol.path.worktree_id.to_proto(),
7015 path: symbol.path.path.to_string_lossy().to_string(),
7016 name: symbol.name.clone(),
7017 kind: unsafe { mem::transmute(symbol.kind) },
7018 start: Some(proto::PointUtf16 {
7019 row: symbol.range.start.0.row,
7020 column: symbol.range.start.0.column,
7021 }),
7022 end: Some(proto::PointUtf16 {
7023 row: symbol.range.end.0.row,
7024 column: symbol.range.end.0.column,
7025 }),
7026 signature: symbol.signature.to_vec(),
7027 }
7028}
7029
7030fn relativize_path(base: &Path, path: &Path) -> PathBuf {
7031 let mut path_components = path.components();
7032 let mut base_components = base.components();
7033 let mut components: Vec<Component> = Vec::new();
7034 loop {
7035 match (path_components.next(), base_components.next()) {
7036 (None, None) => break,
7037 (Some(a), None) => {
7038 components.push(a);
7039 components.extend(path_components.by_ref());
7040 break;
7041 }
7042 (None, _) => components.push(Component::ParentDir),
7043 (Some(a), Some(b)) if components.is_empty() && a == b => (),
7044 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
7045 (Some(a), Some(_)) => {
7046 components.push(Component::ParentDir);
7047 for _ in base_components {
7048 components.push(Component::ParentDir);
7049 }
7050 components.push(a);
7051 components.extend(path_components.by_ref());
7052 break;
7053 }
7054 }
7055 }
7056 components.iter().map(|c| c.as_os_str()).collect()
7057}
7058
7059impl Item for Buffer {
7060 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
7061 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
7062 }
7063
7064 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
7065 File::from_dyn(self.file()).map(|file| ProjectPath {
7066 worktree_id: file.worktree_id(cx),
7067 path: file.path().clone(),
7068 })
7069 }
7070}
7071
7072async fn pump_loading_buffer_reciever(
7073 mut receiver: postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
7074) -> Result<ModelHandle<Buffer>, Arc<anyhow::Error>> {
7075 loop {
7076 if let Some(result) = receiver.borrow().as_ref() {
7077 match result {
7078 Ok(buffer) => return Ok(buffer.to_owned()),
7079 Err(e) => return Err(e.to_owned()),
7080 }
7081 }
7082 receiver.next().await;
7083 }
7084}
7085
7086fn update_diff_base(
7087 project: &Project,
7088) -> impl Fn(Option<String>, ModelHandle<Buffer>, &mut AsyncAppContext) {
7089 let remote_id = project.remote_id();
7090 let client = project.client().clone();
7091 move |diff_base, buffer, cx| {
7092 let buffer_id = buffer.update(cx, |buffer, cx| {
7093 buffer.set_diff_base(diff_base.clone(), cx);
7094 buffer.remote_id()
7095 });
7096
7097 if let Some(project_id) = remote_id {
7098 client
7099 .send(proto::UpdateDiffBase {
7100 project_id,
7101 buffer_id: buffer_id as u64,
7102 diff_base,
7103 })
7104 .log_err();
7105 }
7106 }
7107}