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