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