1mod db;
2pub mod fs;
3mod ignore;
4mod lsp_command;
5pub mod search;
6pub mod worktree;
7
8use anyhow::{anyhow, Context, Result};
9use client::{proto, Client, PeerId, TypedEnvelope, User, UserStore};
10use clock::ReplicaId;
11use collections::{hash_map, BTreeMap, HashMap, HashSet};
12use futures::{future::Shared, Future, FutureExt, StreamExt, TryFutureExt};
13use fuzzy::{PathMatch, PathMatchCandidate, PathMatchCandidateSet};
14use gpui::{
15 AnyModelHandle, AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle,
16 MutableAppContext, Task, UpgradeModelHandle, WeakModelHandle,
17};
18use language::{
19 point_to_lsp,
20 proto::{deserialize_anchor, deserialize_version, serialize_anchor, serialize_version},
21 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CharKind, CodeAction, CodeLabel,
22 Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Event as BufferEvent, File as _,
23 Language, LanguageRegistry, LanguageServerName, LocalFile, LspAdapter, OffsetRangeExt,
24 Operation, Patch, PointUtf16, TextBufferSnapshot, ToOffset, ToPointUtf16, Transaction,
25};
26use lsp::{
27 DiagnosticSeverity, DiagnosticTag, DocumentHighlightKind, LanguageServer, LanguageString,
28 MarkedString,
29};
30use lsp_command::*;
31use parking_lot::Mutex;
32use postage::stream::Stream;
33use postage::watch;
34use rand::prelude::*;
35use search::SearchQuery;
36use serde::Serialize;
37use settings::Settings;
38use sha2::{Digest, Sha256};
39use similar::{ChangeTag, TextDiff};
40use std::{
41 cell::RefCell,
42 cmp::{self, Ordering},
43 convert::TryInto,
44 ffi::OsString,
45 hash::Hash,
46 mem,
47 ops::Range,
48 os::unix::{ffi::OsStrExt, prelude::OsStringExt},
49 path::{Component, Path, PathBuf},
50 rc::Rc,
51 sync::{
52 atomic::{AtomicBool, AtomicUsize, Ordering::SeqCst},
53 Arc,
54 },
55 time::Instant,
56};
57use thiserror::Error;
58use util::{post_inc, ResultExt, TryFutureExt as _};
59
60pub use db::Db;
61pub use fs::*;
62pub use worktree::*;
63
64pub trait Item: Entity {
65 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
66}
67
68pub struct ProjectStore {
69 db: Arc<Db>,
70 projects: Vec<WeakModelHandle<Project>>,
71}
72
73pub struct Project {
74 worktrees: Vec<WorktreeHandle>,
75 active_entry: Option<ProjectEntryId>,
76 languages: Arc<LanguageRegistry>,
77 language_servers:
78 HashMap<(WorktreeId, LanguageServerName), (Arc<dyn LspAdapter>, Arc<LanguageServer>)>,
79 started_language_servers:
80 HashMap<(WorktreeId, LanguageServerName), Task<Option<Arc<LanguageServer>>>>,
81 language_server_statuses: BTreeMap<usize, LanguageServerStatus>,
82 language_server_settings: Arc<Mutex<serde_json::Value>>,
83 last_workspace_edits_by_language_server: HashMap<usize, ProjectTransaction>,
84 next_language_server_id: usize,
85 client: Arc<client::Client>,
86 next_entry_id: Arc<AtomicUsize>,
87 next_diagnostic_group_id: usize,
88 user_store: ModelHandle<UserStore>,
89 project_store: ModelHandle<ProjectStore>,
90 fs: Arc<dyn Fs>,
91 client_state: ProjectClientState,
92 collaborators: HashMap<PeerId, Collaborator>,
93 client_subscriptions: Vec<client::Subscription>,
94 _subscriptions: Vec<gpui::Subscription>,
95 opened_buffer: (Rc<RefCell<watch::Sender<()>>>, watch::Receiver<()>),
96 shared_buffers: HashMap<PeerId, HashSet<u64>>,
97 loading_buffers: HashMap<
98 ProjectPath,
99 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
100 >,
101 loading_local_worktrees:
102 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
103 opened_buffers: HashMap<u64, OpenBuffer>,
104 buffer_snapshots: HashMap<u64, Vec<(i32, TextBufferSnapshot)>>,
105 nonce: u128,
106 initialized_persistent_state: bool,
107}
108
109#[derive(Error, Debug)]
110pub enum JoinProjectError {
111 #[error("host declined join request")]
112 HostDeclined,
113 #[error("host closed the project")]
114 HostClosedProject,
115 #[error("host went offline")]
116 HostWentOffline,
117 #[error("{0}")]
118 Other(#[from] anyhow::Error),
119}
120
121enum OpenBuffer {
122 Strong(ModelHandle<Buffer>),
123 Weak(WeakModelHandle<Buffer>),
124 Loading(Vec<Operation>),
125}
126
127enum WorktreeHandle {
128 Strong(ModelHandle<Worktree>),
129 Weak(WeakModelHandle<Worktree>),
130}
131
132enum ProjectClientState {
133 Local {
134 is_shared: bool,
135 remote_id_tx: watch::Sender<Option<u64>>,
136 remote_id_rx: watch::Receiver<Option<u64>>,
137 online_tx: watch::Sender<bool>,
138 online_rx: watch::Receiver<bool>,
139 _maintain_remote_id_task: Task<Option<()>>,
140 },
141 Remote {
142 sharing_has_stopped: bool,
143 remote_id: u64,
144 replica_id: ReplicaId,
145 _detect_unshare_task: Task<Option<()>>,
146 },
147}
148
149#[derive(Clone, Debug)]
150pub struct Collaborator {
151 pub user: Arc<User>,
152 pub peer_id: PeerId,
153 pub replica_id: ReplicaId,
154}
155
156#[derive(Clone, Debug, PartialEq, Eq)]
157pub enum Event {
158 ActiveEntryChanged(Option<ProjectEntryId>),
159 WorktreeAdded,
160 WorktreeRemoved(WorktreeId),
161 DiskBasedDiagnosticsStarted {
162 language_server_id: usize,
163 },
164 DiskBasedDiagnosticsFinished {
165 language_server_id: usize,
166 },
167 DiagnosticsUpdated {
168 path: ProjectPath,
169 language_server_id: usize,
170 },
171 RemoteIdChanged(Option<u64>),
172 CollaboratorLeft(PeerId),
173 ContactRequestedJoin(Arc<User>),
174 ContactCancelledJoinRequest(Arc<User>),
175}
176
177#[derive(Serialize)]
178pub struct LanguageServerStatus {
179 pub name: String,
180 pub pending_work: BTreeMap<String, LanguageServerProgress>,
181 pub has_pending_diagnostic_updates: bool,
182 progress_tokens: HashSet<String>,
183}
184
185#[derive(Clone, Debug, Serialize)]
186pub struct LanguageServerProgress {
187 pub message: Option<String>,
188 pub percentage: Option<usize>,
189 #[serde(skip_serializing)]
190 pub last_update_at: Instant,
191}
192
193#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
194pub struct ProjectPath {
195 pub worktree_id: WorktreeId,
196 pub path: Arc<Path>,
197}
198
199#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
200pub struct DiagnosticSummary {
201 pub language_server_id: usize,
202 pub error_count: usize,
203 pub warning_count: usize,
204}
205
206#[derive(Debug, Clone)]
207pub struct Location {
208 pub buffer: ModelHandle<Buffer>,
209 pub range: Range<language::Anchor>,
210}
211
212#[derive(Debug, Clone)]
213pub struct LocationLink {
214 pub origin: Option<Location>,
215 pub target: Location,
216}
217
218#[derive(Debug)]
219pub struct DocumentHighlight {
220 pub range: Range<language::Anchor>,
221 pub kind: DocumentHighlightKind,
222}
223
224#[derive(Clone, Debug)]
225pub struct Symbol {
226 pub source_worktree_id: WorktreeId,
227 pub worktree_id: WorktreeId,
228 pub language_server_name: LanguageServerName,
229 pub path: PathBuf,
230 pub label: CodeLabel,
231 pub name: String,
232 pub kind: lsp::SymbolKind,
233 pub range: Range<PointUtf16>,
234 pub signature: [u8; 32],
235}
236
237#[derive(Clone, Debug, PartialEq)]
238pub struct HoverBlock {
239 pub text: String,
240 pub language: Option<String>,
241}
242
243impl HoverBlock {
244 fn try_new(marked_string: MarkedString) -> Option<Self> {
245 let result = match marked_string {
246 MarkedString::LanguageString(LanguageString { language, value }) => HoverBlock {
247 text: value,
248 language: Some(language),
249 },
250 MarkedString::String(text) => HoverBlock {
251 text,
252 language: None,
253 },
254 };
255 if result.text.is_empty() {
256 None
257 } else {
258 Some(result)
259 }
260 }
261}
262
263#[derive(Debug)]
264pub struct Hover {
265 pub contents: Vec<HoverBlock>,
266 pub range: Option<Range<language::Anchor>>,
267}
268
269#[derive(Default)]
270pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
271
272impl DiagnosticSummary {
273 fn new<'a, T: 'a>(
274 language_server_id: usize,
275 diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>,
276 ) -> Self {
277 let mut this = Self {
278 language_server_id,
279 error_count: 0,
280 warning_count: 0,
281 };
282
283 for entry in diagnostics {
284 if entry.diagnostic.is_primary {
285 match entry.diagnostic.severity {
286 DiagnosticSeverity::ERROR => this.error_count += 1,
287 DiagnosticSeverity::WARNING => this.warning_count += 1,
288 _ => {}
289 }
290 }
291 }
292
293 this
294 }
295
296 pub fn is_empty(&self) -> bool {
297 self.error_count == 0 && self.warning_count == 0
298 }
299
300 pub fn to_proto(&self, path: &Path) -> proto::DiagnosticSummary {
301 proto::DiagnosticSummary {
302 path: path.to_string_lossy().to_string(),
303 language_server_id: self.language_server_id as u64,
304 error_count: self.error_count as u32,
305 warning_count: self.warning_count as u32,
306 }
307 }
308}
309
310#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
311pub struct ProjectEntryId(usize);
312
313impl ProjectEntryId {
314 pub const MAX: Self = Self(usize::MAX);
315
316 pub fn new(counter: &AtomicUsize) -> Self {
317 Self(counter.fetch_add(1, SeqCst))
318 }
319
320 pub fn from_proto(id: u64) -> Self {
321 Self(id as usize)
322 }
323
324 pub fn to_proto(&self) -> u64 {
325 self.0 as u64
326 }
327
328 pub fn to_usize(&self) -> usize {
329 self.0
330 }
331}
332
333impl Project {
334 pub fn init(client: &Arc<Client>) {
335 client.add_model_message_handler(Self::handle_request_join_project);
336 client.add_model_message_handler(Self::handle_add_collaborator);
337 client.add_model_message_handler(Self::handle_buffer_reloaded);
338 client.add_model_message_handler(Self::handle_buffer_saved);
339 client.add_model_message_handler(Self::handle_start_language_server);
340 client.add_model_message_handler(Self::handle_update_language_server);
341 client.add_model_message_handler(Self::handle_remove_collaborator);
342 client.add_model_message_handler(Self::handle_join_project_request_cancelled);
343 client.add_model_message_handler(Self::handle_update_project);
344 client.add_model_message_handler(Self::handle_unregister_project);
345 client.add_model_message_handler(Self::handle_project_unshared);
346 client.add_model_message_handler(Self::handle_update_buffer_file);
347 client.add_model_message_handler(Self::handle_update_buffer);
348 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
349 client.add_model_message_handler(Self::handle_update_worktree);
350 client.add_model_request_handler(Self::handle_create_project_entry);
351 client.add_model_request_handler(Self::handle_rename_project_entry);
352 client.add_model_request_handler(Self::handle_copy_project_entry);
353 client.add_model_request_handler(Self::handle_delete_project_entry);
354 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
355 client.add_model_request_handler(Self::handle_apply_code_action);
356 client.add_model_request_handler(Self::handle_reload_buffers);
357 client.add_model_request_handler(Self::handle_format_buffers);
358 client.add_model_request_handler(Self::handle_get_code_actions);
359 client.add_model_request_handler(Self::handle_get_completions);
360 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
361 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
362 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
363 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
364 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
365 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
366 client.add_model_request_handler(Self::handle_search_project);
367 client.add_model_request_handler(Self::handle_get_project_symbols);
368 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
369 client.add_model_request_handler(Self::handle_open_buffer_by_id);
370 client.add_model_request_handler(Self::handle_open_buffer_by_path);
371 client.add_model_request_handler(Self::handle_save_buffer);
372 }
373
374 pub fn local(
375 online: bool,
376 client: Arc<Client>,
377 user_store: ModelHandle<UserStore>,
378 project_store: ModelHandle<ProjectStore>,
379 languages: Arc<LanguageRegistry>,
380 fs: Arc<dyn Fs>,
381 cx: &mut MutableAppContext,
382 ) -> ModelHandle<Self> {
383 cx.add_model(|cx: &mut ModelContext<Self>| {
384 let (online_tx, online_rx) = watch::channel_with(online);
385 let (remote_id_tx, remote_id_rx) = watch::channel();
386 let _maintain_remote_id_task = cx.spawn_weak({
387 let status_rx = client.clone().status();
388 let online_rx = online_rx.clone();
389 move |this, mut cx| async move {
390 let mut stream = Stream::map(status_rx.clone(), drop)
391 .merge(Stream::map(online_rx.clone(), drop));
392 while stream.recv().await.is_some() {
393 let this = this.upgrade(&cx)?;
394 if status_rx.borrow().is_connected() && *online_rx.borrow() {
395 this.update(&mut cx, |this, cx| this.register(cx))
396 .await
397 .log_err()?;
398 } else {
399 this.update(&mut cx, |this, cx| this.unregister(cx))
400 .await
401 .log_err();
402 }
403 }
404 None
405 }
406 });
407
408 let handle = cx.weak_handle();
409 project_store.update(cx, |store, cx| store.add_project(handle, cx));
410
411 let (opened_buffer_tx, opened_buffer_rx) = watch::channel();
412 Self {
413 worktrees: Default::default(),
414 collaborators: Default::default(),
415 opened_buffers: Default::default(),
416 shared_buffers: Default::default(),
417 loading_buffers: Default::default(),
418 loading_local_worktrees: Default::default(),
419 buffer_snapshots: Default::default(),
420 client_state: ProjectClientState::Local {
421 is_shared: false,
422 remote_id_tx,
423 remote_id_rx,
424 online_tx,
425 online_rx,
426 _maintain_remote_id_task,
427 },
428 opened_buffer: (Rc::new(RefCell::new(opened_buffer_tx)), opened_buffer_rx),
429 client_subscriptions: Vec::new(),
430 _subscriptions: vec![cx.observe_global::<Settings, _>(Self::on_settings_changed)],
431 active_entry: None,
432 languages,
433 client,
434 user_store,
435 project_store,
436 fs,
437 next_entry_id: Default::default(),
438 next_diagnostic_group_id: Default::default(),
439 language_servers: Default::default(),
440 started_language_servers: Default::default(),
441 language_server_statuses: Default::default(),
442 last_workspace_edits_by_language_server: Default::default(),
443 language_server_settings: Default::default(),
444 next_language_server_id: 0,
445 nonce: StdRng::from_entropy().gen(),
446 initialized_persistent_state: false,
447 }
448 })
449 }
450
451 pub async fn remote(
452 remote_id: u64,
453 client: Arc<Client>,
454 user_store: ModelHandle<UserStore>,
455 project_store: ModelHandle<ProjectStore>,
456 languages: Arc<LanguageRegistry>,
457 fs: Arc<dyn Fs>,
458 mut cx: AsyncAppContext,
459 ) -> Result<ModelHandle<Self>, JoinProjectError> {
460 client.authenticate_and_connect(true, &cx).await?;
461
462 let response = client
463 .request(proto::JoinProject {
464 project_id: remote_id,
465 })
466 .await?;
467
468 let response = match response.variant.ok_or_else(|| anyhow!("missing variant"))? {
469 proto::join_project_response::Variant::Accept(response) => response,
470 proto::join_project_response::Variant::Decline(decline) => {
471 match proto::join_project_response::decline::Reason::from_i32(decline.reason) {
472 Some(proto::join_project_response::decline::Reason::Declined) => {
473 Err(JoinProjectError::HostDeclined)?
474 }
475 Some(proto::join_project_response::decline::Reason::Closed) => {
476 Err(JoinProjectError::HostClosedProject)?
477 }
478 Some(proto::join_project_response::decline::Reason::WentOffline) => {
479 Err(JoinProjectError::HostWentOffline)?
480 }
481 None => Err(anyhow!("missing decline reason"))?,
482 }
483 }
484 };
485
486 let replica_id = response.replica_id as ReplicaId;
487
488 let mut worktrees = Vec::new();
489 for worktree in response.worktrees {
490 let (worktree, load_task) = cx
491 .update(|cx| Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx));
492 worktrees.push(worktree);
493 load_task.detach();
494 }
495
496 let (opened_buffer_tx, opened_buffer_rx) = watch::channel();
497 let this = cx.add_model(|cx: &mut ModelContext<Self>| {
498 let handle = cx.weak_handle();
499 project_store.update(cx, |store, cx| store.add_project(handle, cx));
500
501 let mut this = Self {
502 worktrees: Vec::new(),
503 loading_buffers: Default::default(),
504 opened_buffer: (Rc::new(RefCell::new(opened_buffer_tx)), opened_buffer_rx),
505 shared_buffers: Default::default(),
506 loading_local_worktrees: Default::default(),
507 active_entry: None,
508 collaborators: Default::default(),
509 languages,
510 user_store: user_store.clone(),
511 project_store,
512 fs,
513 next_entry_id: Default::default(),
514 next_diagnostic_group_id: Default::default(),
515 client_subscriptions: vec![client.add_model_for_remote_entity(remote_id, cx)],
516 _subscriptions: Default::default(),
517 client: client.clone(),
518 client_state: ProjectClientState::Remote {
519 sharing_has_stopped: false,
520 remote_id,
521 replica_id,
522 _detect_unshare_task: cx.spawn_weak(move |this, mut cx| {
523 async move {
524 let mut status = client.status();
525 let is_connected =
526 status.next().await.map_or(false, |s| s.is_connected());
527 // Even if we're initially connected, any future change of the status means we momentarily disconnected.
528 if !is_connected || status.next().await.is_some() {
529 if let Some(this) = this.upgrade(&cx) {
530 this.update(&mut cx, |this, cx| this.removed_from_project(cx))
531 }
532 }
533 Ok(())
534 }
535 .log_err()
536 }),
537 },
538 language_servers: Default::default(),
539 started_language_servers: Default::default(),
540 language_server_settings: Default::default(),
541 language_server_statuses: response
542 .language_servers
543 .into_iter()
544 .map(|server| {
545 (
546 server.id as usize,
547 LanguageServerStatus {
548 name: server.name,
549 pending_work: Default::default(),
550 has_pending_diagnostic_updates: false,
551 progress_tokens: Default::default(),
552 },
553 )
554 })
555 .collect(),
556 last_workspace_edits_by_language_server: Default::default(),
557 next_language_server_id: 0,
558 opened_buffers: Default::default(),
559 buffer_snapshots: Default::default(),
560 nonce: StdRng::from_entropy().gen(),
561 initialized_persistent_state: false,
562 };
563 for worktree in worktrees {
564 this.add_worktree(&worktree, cx);
565 }
566 this
567 });
568
569 let user_ids = response
570 .collaborators
571 .iter()
572 .map(|peer| peer.user_id)
573 .collect();
574 user_store
575 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
576 .await?;
577 let mut collaborators = HashMap::default();
578 for message in response.collaborators {
579 let collaborator = Collaborator::from_proto(message, &user_store, &mut cx).await?;
580 collaborators.insert(collaborator.peer_id, collaborator);
581 }
582
583 this.update(&mut cx, |this, _| {
584 this.collaborators = collaborators;
585 });
586
587 Ok(this)
588 }
589
590 #[cfg(any(test, feature = "test-support"))]
591 pub async fn test(
592 fs: Arc<dyn Fs>,
593 root_paths: impl IntoIterator<Item = &Path>,
594 cx: &mut gpui::TestAppContext,
595 ) -> ModelHandle<Project> {
596 if !cx.read(|cx| cx.has_global::<Settings>()) {
597 cx.update(|cx| cx.set_global(Settings::test(cx)));
598 }
599
600 let languages = Arc::new(LanguageRegistry::test());
601 let http_client = client::test::FakeHttpClient::with_404_response();
602 let client = client::Client::new(http_client.clone());
603 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
604 let project_store = cx.add_model(|_| ProjectStore::new(Db::open_fake()));
605 let project = cx.update(|cx| {
606 Project::local(true, client, user_store, project_store, languages, fs, cx)
607 });
608 for path in root_paths {
609 let (tree, _) = project
610 .update(cx, |project, cx| {
611 project.find_or_create_local_worktree(path, true, cx)
612 })
613 .await
614 .unwrap();
615 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
616 .await;
617 }
618 project
619 }
620
621 pub fn restore_state(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
622 if self.is_remote() {
623 return Task::ready(Ok(()));
624 }
625
626 let db = self.project_store.read(cx).db.clone();
627 let keys = self.db_keys_for_online_state(cx);
628 let online_by_default = cx.global::<Settings>().projects_online_by_default;
629 let read_online = cx.background().spawn(async move {
630 let values = db.read(keys)?;
631 anyhow::Ok(
632 values
633 .into_iter()
634 .all(|e| e.map_or(online_by_default, |e| e == [true as u8])),
635 )
636 });
637 cx.spawn(|this, mut cx| async move {
638 let online = read_online.await.log_err().unwrap_or(false);
639 this.update(&mut cx, |this, cx| {
640 this.initialized_persistent_state = true;
641 if let ProjectClientState::Local { online_tx, .. } = &mut this.client_state {
642 let mut online_tx = online_tx.borrow_mut();
643 if *online_tx != online {
644 *online_tx = online;
645 drop(online_tx);
646 this.metadata_changed(false, cx);
647 }
648 }
649 });
650 Ok(())
651 })
652 }
653
654 fn persist_state(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
655 if self.is_remote() || !self.initialized_persistent_state {
656 return Task::ready(Ok(()));
657 }
658
659 let db = self.project_store.read(cx).db.clone();
660 let keys = self.db_keys_for_online_state(cx);
661 let is_online = self.is_online();
662 cx.background().spawn(async move {
663 let value = &[is_online as u8];
664 db.write(keys.into_iter().map(|key| (key, value)))
665 })
666 }
667
668 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
669 let settings = cx.global::<Settings>();
670
671 let mut language_servers_to_start = Vec::new();
672 for buffer in self.opened_buffers.values() {
673 if let Some(buffer) = buffer.upgrade(cx) {
674 let buffer = buffer.read(cx);
675 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
676 {
677 if settings.enable_language_server(Some(&language.name())) {
678 let worktree = file.worktree.read(cx);
679 language_servers_to_start.push((
680 worktree.id(),
681 worktree.as_local().unwrap().abs_path().clone(),
682 language.clone(),
683 ));
684 }
685 }
686 }
687 }
688
689 let mut language_servers_to_stop = Vec::new();
690 for language in self.languages.to_vec() {
691 if let Some(lsp_adapter) = language.lsp_adapter() {
692 if !settings.enable_language_server(Some(&language.name())) {
693 let lsp_name = lsp_adapter.name();
694 for (worktree_id, started_lsp_name) in self.started_language_servers.keys() {
695 if lsp_name == *started_lsp_name {
696 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
697 }
698 }
699 }
700 }
701 }
702
703 // Stop all newly-disabled language servers.
704 for (worktree_id, adapter_name) in language_servers_to_stop {
705 self.stop_language_server(worktree_id, adapter_name, cx)
706 .detach();
707 }
708
709 // Start all the newly-enabled language servers.
710 for (worktree_id, worktree_path, language) in language_servers_to_start {
711 self.start_language_server(worktree_id, worktree_path, language, cx);
712 }
713
714 cx.notify();
715 }
716
717 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
718 self.opened_buffers
719 .get(&remote_id)
720 .and_then(|buffer| buffer.upgrade(cx))
721 }
722
723 pub fn languages(&self) -> &Arc<LanguageRegistry> {
724 &self.languages
725 }
726
727 pub fn client(&self) -> Arc<Client> {
728 self.client.clone()
729 }
730
731 pub fn user_store(&self) -> ModelHandle<UserStore> {
732 self.user_store.clone()
733 }
734
735 pub fn project_store(&self) -> ModelHandle<ProjectStore> {
736 self.project_store.clone()
737 }
738
739 #[cfg(any(test, feature = "test-support"))]
740 pub fn check_invariants(&self, cx: &AppContext) {
741 if self.is_local() {
742 let mut worktree_root_paths = HashMap::default();
743 for worktree in self.worktrees(cx) {
744 let worktree = worktree.read(cx);
745 let abs_path = worktree.as_local().unwrap().abs_path().clone();
746 let prev_worktree_id = worktree_root_paths.insert(abs_path.clone(), worktree.id());
747 assert_eq!(
748 prev_worktree_id,
749 None,
750 "abs path {:?} for worktree {:?} is not unique ({:?} was already registered with the same path)",
751 abs_path,
752 worktree.id(),
753 prev_worktree_id
754 )
755 }
756 } else {
757 let replica_id = self.replica_id();
758 for buffer in self.opened_buffers.values() {
759 if let Some(buffer) = buffer.upgrade(cx) {
760 let buffer = buffer.read(cx);
761 assert_eq!(
762 buffer.deferred_ops_len(),
763 0,
764 "replica {}, buffer {} has deferred operations",
765 replica_id,
766 buffer.remote_id()
767 );
768 }
769 }
770 }
771 }
772
773 #[cfg(any(test, feature = "test-support"))]
774 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
775 let path = path.into();
776 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
777 self.opened_buffers.iter().any(|(_, buffer)| {
778 if let Some(buffer) = buffer.upgrade(cx) {
779 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
780 if file.worktree == worktree && file.path() == &path.path {
781 return true;
782 }
783 }
784 }
785 false
786 })
787 } else {
788 false
789 }
790 }
791
792 pub fn fs(&self) -> &Arc<dyn Fs> {
793 &self.fs
794 }
795
796 pub fn set_online(&mut self, online: bool, cx: &mut ModelContext<Self>) {
797 if let ProjectClientState::Local { online_tx, .. } = &mut self.client_state {
798 let mut online_tx = online_tx.borrow_mut();
799 if *online_tx != online {
800 *online_tx = online;
801 drop(online_tx);
802 self.metadata_changed(true, cx);
803 }
804 }
805 }
806
807 pub fn is_online(&self) -> bool {
808 match &self.client_state {
809 ProjectClientState::Local { online_rx, .. } => *online_rx.borrow(),
810 ProjectClientState::Remote { .. } => true,
811 }
812 }
813
814 fn unregister(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
815 self.unshared(cx);
816 if let ProjectClientState::Local { remote_id_rx, .. } = &mut self.client_state {
817 if let Some(remote_id) = *remote_id_rx.borrow() {
818 let request = self.client.request(proto::UnregisterProject {
819 project_id: remote_id,
820 });
821 return cx.spawn(|this, mut cx| async move {
822 let response = request.await;
823
824 // Unregistering the project causes the server to send out a
825 // contact update removing this project from the host's list
826 // of online projects. Wait until this contact update has been
827 // processed before clearing out this project's remote id, so
828 // that there is no moment where this project appears in the
829 // contact metadata and *also* has no remote id.
830 this.update(&mut cx, |this, cx| {
831 this.user_store()
832 .update(cx, |store, _| store.contact_updates_done())
833 })
834 .await;
835
836 this.update(&mut cx, |this, cx| {
837 if let ProjectClientState::Local { remote_id_tx, .. } =
838 &mut this.client_state
839 {
840 *remote_id_tx.borrow_mut() = None;
841 }
842 this.client_subscriptions.clear();
843 this.metadata_changed(false, cx);
844 });
845 response.map(drop)
846 });
847 }
848 }
849 Task::ready(Ok(()))
850 }
851
852 fn register(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
853 if let ProjectClientState::Local { remote_id_rx, .. } = &self.client_state {
854 if remote_id_rx.borrow().is_some() {
855 return Task::ready(Ok(()));
856 }
857 }
858
859 let response = self.client.request(proto::RegisterProject {});
860 cx.spawn(|this, mut cx| async move {
861 let remote_id = response.await?.project_id;
862 this.update(&mut cx, |this, cx| {
863 if let ProjectClientState::Local { remote_id_tx, .. } = &mut this.client_state {
864 *remote_id_tx.borrow_mut() = Some(remote_id);
865 }
866
867 this.metadata_changed(false, cx);
868 cx.emit(Event::RemoteIdChanged(Some(remote_id)));
869 this.client_subscriptions
870 .push(this.client.add_model_for_remote_entity(remote_id, cx));
871 Ok(())
872 })
873 })
874 }
875
876 pub fn remote_id(&self) -> Option<u64> {
877 match &self.client_state {
878 ProjectClientState::Local { remote_id_rx, .. } => *remote_id_rx.borrow(),
879 ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
880 }
881 }
882
883 pub fn next_remote_id(&self) -> impl Future<Output = u64> {
884 let mut id = None;
885 let mut watch = None;
886 match &self.client_state {
887 ProjectClientState::Local { remote_id_rx, .. } => watch = Some(remote_id_rx.clone()),
888 ProjectClientState::Remote { remote_id, .. } => id = Some(*remote_id),
889 }
890
891 async move {
892 if let Some(id) = id {
893 return id;
894 }
895 let mut watch = watch.unwrap();
896 loop {
897 let id = *watch.borrow();
898 if let Some(id) = id {
899 return id;
900 }
901 watch.next().await;
902 }
903 }
904 }
905
906 pub fn shared_remote_id(&self) -> Option<u64> {
907 match &self.client_state {
908 ProjectClientState::Local {
909 remote_id_rx,
910 is_shared,
911 ..
912 } => {
913 if *is_shared {
914 *remote_id_rx.borrow()
915 } else {
916 None
917 }
918 }
919 ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
920 }
921 }
922
923 pub fn replica_id(&self) -> ReplicaId {
924 match &self.client_state {
925 ProjectClientState::Local { .. } => 0,
926 ProjectClientState::Remote { replica_id, .. } => *replica_id,
927 }
928 }
929
930 fn metadata_changed(&mut self, persist: bool, cx: &mut ModelContext<Self>) {
931 if let ProjectClientState::Local {
932 remote_id_rx,
933 online_rx,
934 ..
935 } = &self.client_state
936 {
937 if let (Some(project_id), true) = (*remote_id_rx.borrow(), *online_rx.borrow()) {
938 self.client
939 .send(proto::UpdateProject {
940 project_id,
941 worktrees: self
942 .worktrees
943 .iter()
944 .filter_map(|worktree| {
945 worktree.upgrade(&cx).map(|worktree| {
946 worktree.read(cx).as_local().unwrap().metadata_proto()
947 })
948 })
949 .collect(),
950 })
951 .log_err();
952 }
953
954 self.project_store.update(cx, |_, cx| cx.notify());
955 if persist {
956 self.persist_state(cx).detach_and_log_err(cx);
957 }
958 cx.notify();
959 }
960 }
961
962 pub fn collaborators(&self) -> &HashMap<PeerId, Collaborator> {
963 &self.collaborators
964 }
965
966 pub fn worktrees<'a>(
967 &'a self,
968 cx: &'a AppContext,
969 ) -> impl 'a + Iterator<Item = ModelHandle<Worktree>> {
970 self.worktrees
971 .iter()
972 .filter_map(move |worktree| worktree.upgrade(cx))
973 }
974
975 pub fn visible_worktrees<'a>(
976 &'a self,
977 cx: &'a AppContext,
978 ) -> impl 'a + Iterator<Item = ModelHandle<Worktree>> {
979 self.worktrees.iter().filter_map(|worktree| {
980 worktree.upgrade(cx).and_then(|worktree| {
981 if worktree.read(cx).is_visible() {
982 Some(worktree)
983 } else {
984 None
985 }
986 })
987 })
988 }
989
990 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
991 self.visible_worktrees(cx)
992 .map(|tree| tree.read(cx).root_name())
993 }
994
995 fn db_keys_for_online_state(&self, cx: &AppContext) -> Vec<String> {
996 self.worktrees
997 .iter()
998 .filter_map(|worktree| {
999 let worktree = worktree.upgrade(&cx)?.read(cx);
1000 if worktree.is_visible() {
1001 Some(format!(
1002 "project-path-online:{}",
1003 worktree.as_local().unwrap().abs_path().to_string_lossy()
1004 ))
1005 } else {
1006 None
1007 }
1008 })
1009 .collect::<Vec<_>>()
1010 }
1011
1012 pub fn worktree_for_id(
1013 &self,
1014 id: WorktreeId,
1015 cx: &AppContext,
1016 ) -> Option<ModelHandle<Worktree>> {
1017 self.worktrees(cx)
1018 .find(|worktree| worktree.read(cx).id() == id)
1019 }
1020
1021 pub fn worktree_for_entry(
1022 &self,
1023 entry_id: ProjectEntryId,
1024 cx: &AppContext,
1025 ) -> Option<ModelHandle<Worktree>> {
1026 self.worktrees(cx)
1027 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
1028 }
1029
1030 pub fn worktree_id_for_entry(
1031 &self,
1032 entry_id: ProjectEntryId,
1033 cx: &AppContext,
1034 ) -> Option<WorktreeId> {
1035 self.worktree_for_entry(entry_id, cx)
1036 .map(|worktree| worktree.read(cx).id())
1037 }
1038
1039 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
1040 paths.iter().all(|path| self.contains_path(&path, cx))
1041 }
1042
1043 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
1044 for worktree in self.worktrees(cx) {
1045 let worktree = worktree.read(cx).as_local();
1046 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
1047 return true;
1048 }
1049 }
1050 false
1051 }
1052
1053 pub fn create_entry(
1054 &mut self,
1055 project_path: impl Into<ProjectPath>,
1056 is_directory: bool,
1057 cx: &mut ModelContext<Self>,
1058 ) -> Option<Task<Result<Entry>>> {
1059 let project_path = project_path.into();
1060 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
1061 if self.is_local() {
1062 Some(worktree.update(cx, |worktree, cx| {
1063 worktree
1064 .as_local_mut()
1065 .unwrap()
1066 .create_entry(project_path.path, is_directory, cx)
1067 }))
1068 } else {
1069 let client = self.client.clone();
1070 let project_id = self.remote_id().unwrap();
1071 Some(cx.spawn_weak(|_, mut cx| async move {
1072 let response = client
1073 .request(proto::CreateProjectEntry {
1074 worktree_id: project_path.worktree_id.to_proto(),
1075 project_id,
1076 path: project_path.path.as_os_str().as_bytes().to_vec(),
1077 is_directory,
1078 })
1079 .await?;
1080 let entry = response
1081 .entry
1082 .ok_or_else(|| anyhow!("missing entry in response"))?;
1083 worktree
1084 .update(&mut cx, |worktree, cx| {
1085 worktree.as_remote().unwrap().insert_entry(
1086 entry,
1087 response.worktree_scan_id as usize,
1088 cx,
1089 )
1090 })
1091 .await
1092 }))
1093 }
1094 }
1095
1096 pub fn copy_entry(
1097 &mut self,
1098 entry_id: ProjectEntryId,
1099 new_path: impl Into<Arc<Path>>,
1100 cx: &mut ModelContext<Self>,
1101 ) -> Option<Task<Result<Entry>>> {
1102 let worktree = self.worktree_for_entry(entry_id, cx)?;
1103 let new_path = new_path.into();
1104 if self.is_local() {
1105 worktree.update(cx, |worktree, cx| {
1106 worktree
1107 .as_local_mut()
1108 .unwrap()
1109 .copy_entry(entry_id, new_path, cx)
1110 })
1111 } else {
1112 let client = self.client.clone();
1113 let project_id = self.remote_id().unwrap();
1114
1115 Some(cx.spawn_weak(|_, mut cx| async move {
1116 let response = client
1117 .request(proto::CopyProjectEntry {
1118 project_id,
1119 entry_id: entry_id.to_proto(),
1120 new_path: new_path.as_os_str().as_bytes().to_vec(),
1121 })
1122 .await?;
1123 let entry = response
1124 .entry
1125 .ok_or_else(|| anyhow!("missing entry in response"))?;
1126 worktree
1127 .update(&mut cx, |worktree, cx| {
1128 worktree.as_remote().unwrap().insert_entry(
1129 entry,
1130 response.worktree_scan_id as usize,
1131 cx,
1132 )
1133 })
1134 .await
1135 }))
1136 }
1137 }
1138
1139 pub fn rename_entry(
1140 &mut self,
1141 entry_id: ProjectEntryId,
1142 new_path: impl Into<Arc<Path>>,
1143 cx: &mut ModelContext<Self>,
1144 ) -> Option<Task<Result<Entry>>> {
1145 let worktree = self.worktree_for_entry(entry_id, cx)?;
1146 let new_path = new_path.into();
1147 if self.is_local() {
1148 worktree.update(cx, |worktree, cx| {
1149 worktree
1150 .as_local_mut()
1151 .unwrap()
1152 .rename_entry(entry_id, new_path, cx)
1153 })
1154 } else {
1155 let client = self.client.clone();
1156 let project_id = self.remote_id().unwrap();
1157
1158 Some(cx.spawn_weak(|_, mut cx| async move {
1159 let response = client
1160 .request(proto::RenameProjectEntry {
1161 project_id,
1162 entry_id: entry_id.to_proto(),
1163 new_path: new_path.as_os_str().as_bytes().to_vec(),
1164 })
1165 .await?;
1166 let entry = response
1167 .entry
1168 .ok_or_else(|| anyhow!("missing entry in response"))?;
1169 worktree
1170 .update(&mut cx, |worktree, cx| {
1171 worktree.as_remote().unwrap().insert_entry(
1172 entry,
1173 response.worktree_scan_id as usize,
1174 cx,
1175 )
1176 })
1177 .await
1178 }))
1179 }
1180 }
1181
1182 pub fn delete_entry(
1183 &mut self,
1184 entry_id: ProjectEntryId,
1185 cx: &mut ModelContext<Self>,
1186 ) -> Option<Task<Result<()>>> {
1187 let worktree = self.worktree_for_entry(entry_id, cx)?;
1188 if self.is_local() {
1189 worktree.update(cx, |worktree, cx| {
1190 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
1191 })
1192 } else {
1193 let client = self.client.clone();
1194 let project_id = self.remote_id().unwrap();
1195 Some(cx.spawn_weak(|_, mut cx| async move {
1196 let response = client
1197 .request(proto::DeleteProjectEntry {
1198 project_id,
1199 entry_id: entry_id.to_proto(),
1200 })
1201 .await?;
1202 worktree
1203 .update(&mut cx, move |worktree, cx| {
1204 worktree.as_remote().unwrap().delete_entry(
1205 entry_id,
1206 response.worktree_scan_id as usize,
1207 cx,
1208 )
1209 })
1210 .await
1211 }))
1212 }
1213 }
1214
1215 fn share(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
1216 let project_id;
1217 if let ProjectClientState::Local {
1218 remote_id_rx,
1219 is_shared,
1220 ..
1221 } = &mut self.client_state
1222 {
1223 if *is_shared {
1224 return Task::ready(Ok(()));
1225 }
1226 *is_shared = true;
1227 if let Some(id) = *remote_id_rx.borrow() {
1228 project_id = id;
1229 } else {
1230 return Task::ready(Err(anyhow!("project hasn't been registered")));
1231 }
1232 } else {
1233 return Task::ready(Err(anyhow!("can't share a remote project")));
1234 };
1235
1236 for open_buffer in self.opened_buffers.values_mut() {
1237 match open_buffer {
1238 OpenBuffer::Strong(_) => {}
1239 OpenBuffer::Weak(buffer) => {
1240 if let Some(buffer) = buffer.upgrade(cx) {
1241 *open_buffer = OpenBuffer::Strong(buffer);
1242 }
1243 }
1244 OpenBuffer::Loading(_) => unreachable!(),
1245 }
1246 }
1247
1248 for worktree_handle in self.worktrees.iter_mut() {
1249 match worktree_handle {
1250 WorktreeHandle::Strong(_) => {}
1251 WorktreeHandle::Weak(worktree) => {
1252 if let Some(worktree) = worktree.upgrade(cx) {
1253 *worktree_handle = WorktreeHandle::Strong(worktree);
1254 }
1255 }
1256 }
1257 }
1258
1259 let mut tasks = Vec::new();
1260 for worktree in self.worktrees(cx).collect::<Vec<_>>() {
1261 worktree.update(cx, |worktree, cx| {
1262 let worktree = worktree.as_local_mut().unwrap();
1263 tasks.push(worktree.share(project_id, cx));
1264 });
1265 }
1266
1267 for (server_id, status) in &self.language_server_statuses {
1268 self.client
1269 .send(proto::StartLanguageServer {
1270 project_id,
1271 server: Some(proto::LanguageServer {
1272 id: *server_id as u64,
1273 name: status.name.clone(),
1274 }),
1275 })
1276 .log_err();
1277 }
1278
1279 cx.spawn(|this, mut cx| async move {
1280 for task in tasks {
1281 task.await?;
1282 }
1283 this.update(&mut cx, |_, cx| cx.notify());
1284 Ok(())
1285 })
1286 }
1287
1288 fn unshared(&mut self, cx: &mut ModelContext<Self>) {
1289 if let ProjectClientState::Local { is_shared, .. } = &mut self.client_state {
1290 if !*is_shared {
1291 return;
1292 }
1293
1294 *is_shared = false;
1295 self.collaborators.clear();
1296 self.shared_buffers.clear();
1297 for worktree_handle in self.worktrees.iter_mut() {
1298 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1299 let is_visible = worktree.update(cx, |worktree, _| {
1300 worktree.as_local_mut().unwrap().unshare();
1301 worktree.is_visible()
1302 });
1303 if !is_visible {
1304 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1305 }
1306 }
1307 }
1308
1309 for open_buffer in self.opened_buffers.values_mut() {
1310 match open_buffer {
1311 OpenBuffer::Strong(buffer) => {
1312 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1313 }
1314 _ => {}
1315 }
1316 }
1317
1318 cx.notify();
1319 } else {
1320 log::error!("attempted to unshare a remote project");
1321 }
1322 }
1323
1324 pub fn respond_to_join_request(
1325 &mut self,
1326 requester_id: u64,
1327 allow: bool,
1328 cx: &mut ModelContext<Self>,
1329 ) {
1330 if let Some(project_id) = self.remote_id() {
1331 let share = self.share(cx);
1332 let client = self.client.clone();
1333 cx.foreground()
1334 .spawn(async move {
1335 share.await?;
1336 client.send(proto::RespondToJoinProjectRequest {
1337 requester_id,
1338 project_id,
1339 allow,
1340 })
1341 })
1342 .detach_and_log_err(cx);
1343 }
1344 }
1345
1346 fn removed_from_project(&mut self, cx: &mut ModelContext<Self>) {
1347 if let ProjectClientState::Remote {
1348 sharing_has_stopped,
1349 ..
1350 } = &mut self.client_state
1351 {
1352 *sharing_has_stopped = true;
1353 self.collaborators.clear();
1354 for worktree in &self.worktrees {
1355 if let Some(worktree) = worktree.upgrade(cx) {
1356 worktree.update(cx, |worktree, _| {
1357 if let Some(worktree) = worktree.as_remote_mut() {
1358 worktree.disconnected_from_host();
1359 }
1360 });
1361 }
1362 }
1363 cx.notify();
1364 }
1365 }
1366
1367 pub fn is_read_only(&self) -> bool {
1368 match &self.client_state {
1369 ProjectClientState::Local { .. } => false,
1370 ProjectClientState::Remote {
1371 sharing_has_stopped,
1372 ..
1373 } => *sharing_has_stopped,
1374 }
1375 }
1376
1377 pub fn is_local(&self) -> bool {
1378 match &self.client_state {
1379 ProjectClientState::Local { .. } => true,
1380 ProjectClientState::Remote { .. } => false,
1381 }
1382 }
1383
1384 pub fn is_remote(&self) -> bool {
1385 !self.is_local()
1386 }
1387
1388 pub fn create_buffer(
1389 &mut self,
1390 text: &str,
1391 language: Option<Arc<Language>>,
1392 cx: &mut ModelContext<Self>,
1393 ) -> Result<ModelHandle<Buffer>> {
1394 if self.is_remote() {
1395 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1396 }
1397
1398 let buffer = cx.add_model(|cx| {
1399 Buffer::new(self.replica_id(), text, cx)
1400 .with_language(language.unwrap_or(language::PLAIN_TEXT.clone()), cx)
1401 });
1402 self.register_buffer(&buffer, cx)?;
1403 Ok(buffer)
1404 }
1405
1406 pub fn open_path(
1407 &mut self,
1408 path: impl Into<ProjectPath>,
1409 cx: &mut ModelContext<Self>,
1410 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1411 let task = self.open_buffer(path, cx);
1412 cx.spawn_weak(|_, cx| async move {
1413 let buffer = task.await?;
1414 let project_entry_id = buffer
1415 .read_with(&cx, |buffer, cx| {
1416 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1417 })
1418 .ok_or_else(|| anyhow!("no project entry"))?;
1419 Ok((project_entry_id, buffer.into()))
1420 })
1421 }
1422
1423 pub fn open_local_buffer(
1424 &mut self,
1425 abs_path: impl AsRef<Path>,
1426 cx: &mut ModelContext<Self>,
1427 ) -> Task<Result<ModelHandle<Buffer>>> {
1428 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1429 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1430 } else {
1431 Task::ready(Err(anyhow!("no such path")))
1432 }
1433 }
1434
1435 pub fn open_buffer(
1436 &mut self,
1437 path: impl Into<ProjectPath>,
1438 cx: &mut ModelContext<Self>,
1439 ) -> Task<Result<ModelHandle<Buffer>>> {
1440 let project_path = path.into();
1441 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1442 worktree
1443 } else {
1444 return Task::ready(Err(anyhow!("no such worktree")));
1445 };
1446
1447 // If there is already a buffer for the given path, then return it.
1448 let existing_buffer = self.get_open_buffer(&project_path, cx);
1449 if let Some(existing_buffer) = existing_buffer {
1450 return Task::ready(Ok(existing_buffer));
1451 }
1452
1453 let mut loading_watch = match self.loading_buffers.entry(project_path.clone()) {
1454 // If the given path is already being loaded, then wait for that existing
1455 // task to complete and return the same buffer.
1456 hash_map::Entry::Occupied(e) => e.get().clone(),
1457
1458 // Otherwise, record the fact that this path is now being loaded.
1459 hash_map::Entry::Vacant(entry) => {
1460 let (mut tx, rx) = postage::watch::channel();
1461 entry.insert(rx.clone());
1462
1463 let load_buffer = if worktree.read(cx).is_local() {
1464 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1465 } else {
1466 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1467 };
1468
1469 cx.spawn(move |this, mut cx| async move {
1470 let load_result = load_buffer.await;
1471 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1472 // Record the fact that the buffer is no longer loading.
1473 this.loading_buffers.remove(&project_path);
1474 let buffer = load_result.map_err(Arc::new)?;
1475 Ok(buffer)
1476 }));
1477 })
1478 .detach();
1479 rx
1480 }
1481 };
1482
1483 cx.foreground().spawn(async move {
1484 loop {
1485 if let Some(result) = loading_watch.borrow().as_ref() {
1486 match result {
1487 Ok(buffer) => return Ok(buffer.clone()),
1488 Err(error) => return Err(anyhow!("{}", error)),
1489 }
1490 }
1491 loading_watch.next().await;
1492 }
1493 })
1494 }
1495
1496 fn open_local_buffer_internal(
1497 &mut self,
1498 path: &Arc<Path>,
1499 worktree: &ModelHandle<Worktree>,
1500 cx: &mut ModelContext<Self>,
1501 ) -> Task<Result<ModelHandle<Buffer>>> {
1502 let load_buffer = worktree.update(cx, |worktree, cx| {
1503 let worktree = worktree.as_local_mut().unwrap();
1504 worktree.load_buffer(path, cx)
1505 });
1506 cx.spawn(|this, mut cx| async move {
1507 let buffer = load_buffer.await?;
1508 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1509 Ok(buffer)
1510 })
1511 }
1512
1513 fn open_remote_buffer_internal(
1514 &mut self,
1515 path: &Arc<Path>,
1516 worktree: &ModelHandle<Worktree>,
1517 cx: &mut ModelContext<Self>,
1518 ) -> Task<Result<ModelHandle<Buffer>>> {
1519 let rpc = self.client.clone();
1520 let project_id = self.remote_id().unwrap();
1521 let remote_worktree_id = worktree.read(cx).id();
1522 let path = path.clone();
1523 let path_string = path.to_string_lossy().to_string();
1524 cx.spawn(|this, mut cx| async move {
1525 let response = rpc
1526 .request(proto::OpenBufferByPath {
1527 project_id,
1528 worktree_id: remote_worktree_id.to_proto(),
1529 path: path_string,
1530 })
1531 .await?;
1532 let buffer = response.buffer.ok_or_else(|| anyhow!("missing buffer"))?;
1533 this.update(&mut cx, |this, cx| this.deserialize_buffer(buffer, cx))
1534 .await
1535 })
1536 }
1537
1538 fn open_local_buffer_via_lsp(
1539 &mut self,
1540 abs_path: lsp::Url,
1541 lsp_adapter: Arc<dyn LspAdapter>,
1542 lsp_server: Arc<LanguageServer>,
1543 cx: &mut ModelContext<Self>,
1544 ) -> Task<Result<ModelHandle<Buffer>>> {
1545 cx.spawn(|this, mut cx| async move {
1546 let abs_path = abs_path
1547 .to_file_path()
1548 .map_err(|_| anyhow!("can't convert URI to path"))?;
1549 let (worktree, relative_path) = if let Some(result) =
1550 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1551 {
1552 result
1553 } else {
1554 let worktree = this
1555 .update(&mut cx, |this, cx| {
1556 this.create_local_worktree(&abs_path, false, cx)
1557 })
1558 .await?;
1559 this.update(&mut cx, |this, cx| {
1560 this.language_servers.insert(
1561 (worktree.read(cx).id(), lsp_adapter.name()),
1562 (lsp_adapter, lsp_server),
1563 );
1564 });
1565 (worktree, PathBuf::new())
1566 };
1567
1568 let project_path = ProjectPath {
1569 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1570 path: relative_path.into(),
1571 };
1572 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1573 .await
1574 })
1575 }
1576
1577 pub fn open_buffer_by_id(
1578 &mut self,
1579 id: u64,
1580 cx: &mut ModelContext<Self>,
1581 ) -> Task<Result<ModelHandle<Buffer>>> {
1582 if let Some(buffer) = self.buffer_for_id(id, cx) {
1583 Task::ready(Ok(buffer))
1584 } else if self.is_local() {
1585 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1586 } else if let Some(project_id) = self.remote_id() {
1587 let request = self
1588 .client
1589 .request(proto::OpenBufferById { project_id, id });
1590 cx.spawn(|this, mut cx| async move {
1591 let buffer = request
1592 .await?
1593 .buffer
1594 .ok_or_else(|| anyhow!("invalid buffer"))?;
1595 this.update(&mut cx, |this, cx| this.deserialize_buffer(buffer, cx))
1596 .await
1597 })
1598 } else {
1599 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1600 }
1601 }
1602
1603 pub fn save_buffer_as(
1604 &mut self,
1605 buffer: ModelHandle<Buffer>,
1606 abs_path: PathBuf,
1607 cx: &mut ModelContext<Project>,
1608 ) -> Task<Result<()>> {
1609 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1610 let old_path =
1611 File::from_dyn(buffer.read(cx).file()).and_then(|f| Some(f.as_local()?.abs_path(cx)));
1612 cx.spawn(|this, mut cx| async move {
1613 if let Some(old_path) = old_path {
1614 this.update(&mut cx, |this, cx| {
1615 this.unregister_buffer_from_language_server(&buffer, old_path, cx);
1616 });
1617 }
1618 let (worktree, path) = worktree_task.await?;
1619 worktree
1620 .update(&mut cx, |worktree, cx| {
1621 worktree
1622 .as_local_mut()
1623 .unwrap()
1624 .save_buffer_as(buffer.clone(), path, cx)
1625 })
1626 .await?;
1627 this.update(&mut cx, |this, cx| {
1628 this.assign_language_to_buffer(&buffer, cx);
1629 this.register_buffer_with_language_server(&buffer, cx);
1630 });
1631 Ok(())
1632 })
1633 }
1634
1635 pub fn get_open_buffer(
1636 &mut self,
1637 path: &ProjectPath,
1638 cx: &mut ModelContext<Self>,
1639 ) -> Option<ModelHandle<Buffer>> {
1640 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1641 self.opened_buffers.values().find_map(|buffer| {
1642 let buffer = buffer.upgrade(cx)?;
1643 let file = File::from_dyn(buffer.read(cx).file())?;
1644 if file.worktree == worktree && file.path() == &path.path {
1645 Some(buffer)
1646 } else {
1647 None
1648 }
1649 })
1650 }
1651
1652 fn register_buffer(
1653 &mut self,
1654 buffer: &ModelHandle<Buffer>,
1655 cx: &mut ModelContext<Self>,
1656 ) -> Result<()> {
1657 let remote_id = buffer.read(cx).remote_id();
1658 let open_buffer = if self.is_remote() || self.is_shared() {
1659 OpenBuffer::Strong(buffer.clone())
1660 } else {
1661 OpenBuffer::Weak(buffer.downgrade())
1662 };
1663
1664 match self.opened_buffers.insert(remote_id, open_buffer) {
1665 None => {}
1666 Some(OpenBuffer::Loading(operations)) => {
1667 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?
1668 }
1669 Some(OpenBuffer::Weak(existing_handle)) => {
1670 if existing_handle.upgrade(cx).is_some() {
1671 Err(anyhow!(
1672 "already registered buffer with remote id {}",
1673 remote_id
1674 ))?
1675 }
1676 }
1677 Some(OpenBuffer::Strong(_)) => Err(anyhow!(
1678 "already registered buffer with remote id {}",
1679 remote_id
1680 ))?,
1681 }
1682 cx.subscribe(buffer, |this, buffer, event, cx| {
1683 this.on_buffer_event(buffer, event, cx);
1684 })
1685 .detach();
1686
1687 self.assign_language_to_buffer(buffer, cx);
1688 self.register_buffer_with_language_server(buffer, cx);
1689 cx.observe_release(buffer, |this, buffer, cx| {
1690 if let Some(file) = File::from_dyn(buffer.file()) {
1691 if file.is_local() {
1692 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1693 if let Some((_, server)) = this.language_server_for_buffer(buffer, cx) {
1694 server
1695 .notify::<lsp::notification::DidCloseTextDocument>(
1696 lsp::DidCloseTextDocumentParams {
1697 text_document: lsp::TextDocumentIdentifier::new(uri.clone()),
1698 },
1699 )
1700 .log_err();
1701 }
1702 }
1703 }
1704 })
1705 .detach();
1706
1707 Ok(())
1708 }
1709
1710 fn register_buffer_with_language_server(
1711 &mut self,
1712 buffer_handle: &ModelHandle<Buffer>,
1713 cx: &mut ModelContext<Self>,
1714 ) {
1715 let buffer = buffer_handle.read(cx);
1716 let buffer_id = buffer.remote_id();
1717 if let Some(file) = File::from_dyn(buffer.file()) {
1718 if file.is_local() {
1719 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1720 let initial_snapshot = buffer.text_snapshot();
1721
1722 let mut language_server = None;
1723 let mut language_id = None;
1724 if let Some(language) = buffer.language() {
1725 let worktree_id = file.worktree_id(cx);
1726 if let Some(adapter) = language.lsp_adapter() {
1727 language_id = adapter.id_for_language(language.name().as_ref());
1728 language_server = self
1729 .language_servers
1730 .get(&(worktree_id, adapter.name()))
1731 .cloned();
1732 }
1733 }
1734
1735 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1736 if let Some(diagnostics) = local_worktree.diagnostics_for_path(file.path()) {
1737 self.update_buffer_diagnostics(&buffer_handle, diagnostics, None, cx)
1738 .log_err();
1739 }
1740 }
1741
1742 if let Some((_, server)) = language_server {
1743 server
1744 .notify::<lsp::notification::DidOpenTextDocument>(
1745 lsp::DidOpenTextDocumentParams {
1746 text_document: lsp::TextDocumentItem::new(
1747 uri,
1748 language_id.unwrap_or_default(),
1749 0,
1750 initial_snapshot.text(),
1751 ),
1752 }
1753 .clone(),
1754 )
1755 .log_err();
1756 buffer_handle.update(cx, |buffer, cx| {
1757 buffer.set_completion_triggers(
1758 server
1759 .capabilities()
1760 .completion_provider
1761 .as_ref()
1762 .and_then(|provider| provider.trigger_characters.clone())
1763 .unwrap_or(Vec::new()),
1764 cx,
1765 )
1766 });
1767 self.buffer_snapshots
1768 .insert(buffer_id, vec![(0, initial_snapshot)]);
1769 }
1770 }
1771 }
1772 }
1773
1774 fn unregister_buffer_from_language_server(
1775 &mut self,
1776 buffer: &ModelHandle<Buffer>,
1777 old_path: PathBuf,
1778 cx: &mut ModelContext<Self>,
1779 ) {
1780 buffer.update(cx, |buffer, cx| {
1781 buffer.update_diagnostics(Default::default(), cx);
1782 self.buffer_snapshots.remove(&buffer.remote_id());
1783 if let Some((_, language_server)) = self.language_server_for_buffer(buffer, cx) {
1784 language_server
1785 .notify::<lsp::notification::DidCloseTextDocument>(
1786 lsp::DidCloseTextDocumentParams {
1787 text_document: lsp::TextDocumentIdentifier::new(
1788 lsp::Url::from_file_path(old_path).unwrap(),
1789 ),
1790 },
1791 )
1792 .log_err();
1793 }
1794 });
1795 }
1796
1797 fn on_buffer_event(
1798 &mut self,
1799 buffer: ModelHandle<Buffer>,
1800 event: &BufferEvent,
1801 cx: &mut ModelContext<Self>,
1802 ) -> Option<()> {
1803 match event {
1804 BufferEvent::Operation(operation) => {
1805 if let Some(project_id) = self.shared_remote_id() {
1806 let request = self.client.request(proto::UpdateBuffer {
1807 project_id,
1808 buffer_id: buffer.read(cx).remote_id(),
1809 operations: vec![language::proto::serialize_operation(&operation)],
1810 });
1811 cx.background().spawn(request).detach_and_log_err(cx);
1812 } else if let Some(project_id) = self.remote_id() {
1813 let _ = self
1814 .client
1815 .send(proto::RegisterProjectActivity { project_id });
1816 }
1817 }
1818 BufferEvent::Edited { .. } => {
1819 let (_, language_server) = self
1820 .language_server_for_buffer(buffer.read(cx), cx)?
1821 .clone();
1822 let buffer = buffer.read(cx);
1823 let file = File::from_dyn(buffer.file())?;
1824 let abs_path = file.as_local()?.abs_path(cx);
1825 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1826 let buffer_snapshots = self.buffer_snapshots.get_mut(&buffer.remote_id())?;
1827 let (version, prev_snapshot) = buffer_snapshots.last()?;
1828 let next_snapshot = buffer.text_snapshot();
1829 let next_version = version + 1;
1830
1831 let content_changes = buffer
1832 .edits_since::<(PointUtf16, usize)>(prev_snapshot.version())
1833 .map(|edit| {
1834 let edit_start = edit.new.start.0;
1835 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
1836 let new_text = next_snapshot
1837 .text_for_range(edit.new.start.1..edit.new.end.1)
1838 .collect();
1839 lsp::TextDocumentContentChangeEvent {
1840 range: Some(lsp::Range::new(
1841 point_to_lsp(edit_start),
1842 point_to_lsp(edit_end),
1843 )),
1844 range_length: None,
1845 text: new_text,
1846 }
1847 })
1848 .collect();
1849
1850 buffer_snapshots.push((next_version, next_snapshot));
1851
1852 language_server
1853 .notify::<lsp::notification::DidChangeTextDocument>(
1854 lsp::DidChangeTextDocumentParams {
1855 text_document: lsp::VersionedTextDocumentIdentifier::new(
1856 uri,
1857 next_version,
1858 ),
1859 content_changes,
1860 },
1861 )
1862 .log_err();
1863 }
1864 BufferEvent::Saved => {
1865 let file = File::from_dyn(buffer.read(cx).file())?;
1866 let worktree_id = file.worktree_id(cx);
1867 let abs_path = file.as_local()?.abs_path(cx);
1868 let text_document = lsp::TextDocumentIdentifier {
1869 uri: lsp::Url::from_file_path(abs_path).unwrap(),
1870 };
1871
1872 for (_, server) in self.language_servers_for_worktree(worktree_id) {
1873 server
1874 .notify::<lsp::notification::DidSaveTextDocument>(
1875 lsp::DidSaveTextDocumentParams {
1876 text_document: text_document.clone(),
1877 text: None,
1878 },
1879 )
1880 .log_err();
1881 }
1882
1883 // After saving a buffer, simulate disk-based diagnostics being finished for languages
1884 // that don't support a disk-based progress token.
1885 let (lsp_adapter, language_server) =
1886 self.language_server_for_buffer(buffer.read(cx), cx)?;
1887 if lsp_adapter
1888 .disk_based_diagnostics_progress_token()
1889 .is_none()
1890 {
1891 let server_id = language_server.server_id();
1892 self.disk_based_diagnostics_finished(server_id, cx);
1893 self.broadcast_language_server_update(
1894 server_id,
1895 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
1896 proto::LspDiskBasedDiagnosticsUpdated {},
1897 ),
1898 );
1899 }
1900 }
1901 _ => {}
1902 }
1903
1904 None
1905 }
1906
1907 fn language_servers_for_worktree(
1908 &self,
1909 worktree_id: WorktreeId,
1910 ) -> impl Iterator<Item = &(Arc<dyn LspAdapter>, Arc<LanguageServer>)> {
1911 self.language_servers.iter().filter_map(
1912 move |((language_server_worktree_id, _), server)| {
1913 if *language_server_worktree_id == worktree_id {
1914 Some(server)
1915 } else {
1916 None
1917 }
1918 },
1919 )
1920 }
1921
1922 fn assign_language_to_buffer(
1923 &mut self,
1924 buffer: &ModelHandle<Buffer>,
1925 cx: &mut ModelContext<Self>,
1926 ) -> Option<()> {
1927 // If the buffer has a language, set it and start the language server if we haven't already.
1928 let full_path = buffer.read(cx).file()?.full_path(cx);
1929 let language = self.languages.select_language(&full_path)?;
1930 buffer.update(cx, |buffer, cx| {
1931 buffer.set_language(Some(language.clone()), cx);
1932 });
1933
1934 let file = File::from_dyn(buffer.read(cx).file())?;
1935 let worktree = file.worktree.read(cx).as_local()?;
1936 let worktree_id = worktree.id();
1937 let worktree_abs_path = worktree.abs_path().clone();
1938 self.start_language_server(worktree_id, worktree_abs_path, language, cx);
1939
1940 None
1941 }
1942
1943 fn start_language_server(
1944 &mut self,
1945 worktree_id: WorktreeId,
1946 worktree_path: Arc<Path>,
1947 language: Arc<Language>,
1948 cx: &mut ModelContext<Self>,
1949 ) {
1950 if !cx
1951 .global::<Settings>()
1952 .enable_language_server(Some(&language.name()))
1953 {
1954 return;
1955 }
1956
1957 let adapter = if let Some(adapter) = language.lsp_adapter() {
1958 adapter
1959 } else {
1960 return;
1961 };
1962 let key = (worktree_id, adapter.name());
1963 self.started_language_servers
1964 .entry(key.clone())
1965 .or_insert_with(|| {
1966 let server_id = post_inc(&mut self.next_language_server_id);
1967 let language_server = self.languages.start_language_server(
1968 server_id,
1969 language.clone(),
1970 worktree_path,
1971 self.client.http_client(),
1972 cx,
1973 );
1974 cx.spawn_weak(|this, mut cx| async move {
1975 let language_server = language_server?.await.log_err()?;
1976 let language_server = language_server
1977 .initialize(adapter.initialization_options())
1978 .await
1979 .log_err()?;
1980 let this = this.upgrade(&cx)?;
1981 let disk_based_diagnostics_progress_token =
1982 adapter.disk_based_diagnostics_progress_token();
1983
1984 language_server
1985 .on_notification::<lsp::notification::PublishDiagnostics, _>({
1986 let this = this.downgrade();
1987 let adapter = adapter.clone();
1988 move |params, mut cx| {
1989 if let Some(this) = this.upgrade(&cx) {
1990 this.update(&mut cx, |this, cx| {
1991 this.on_lsp_diagnostics_published(
1992 server_id, params, &adapter, cx,
1993 );
1994 });
1995 }
1996 }
1997 })
1998 .detach();
1999
2000 language_server
2001 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2002 let settings = this
2003 .read_with(&cx, |this, _| this.language_server_settings.clone());
2004 move |params, _| {
2005 let settings = settings.lock().clone();
2006 async move {
2007 Ok(params
2008 .items
2009 .into_iter()
2010 .map(|item| {
2011 if let Some(section) = &item.section {
2012 settings
2013 .get(section)
2014 .cloned()
2015 .unwrap_or(serde_json::Value::Null)
2016 } else {
2017 settings.clone()
2018 }
2019 })
2020 .collect())
2021 }
2022 }
2023 })
2024 .detach();
2025
2026 // Even though we don't have handling for these requests, respond to them to
2027 // avoid stalling any language server like `gopls` which waits for a response
2028 // to these requests when initializing.
2029 language_server
2030 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
2031 let this = this.downgrade();
2032 move |params, mut cx| async move {
2033 if let Some(this) = this.upgrade(&cx) {
2034 this.update(&mut cx, |this, _| {
2035 if let Some(status) =
2036 this.language_server_statuses.get_mut(&server_id)
2037 {
2038 if let lsp::NumberOrString::String(token) = params.token
2039 {
2040 status.progress_tokens.insert(token);
2041 }
2042 }
2043 });
2044 }
2045 Ok(())
2046 }
2047 })
2048 .detach();
2049 language_server
2050 .on_request::<lsp::request::RegisterCapability, _, _>(|_, _| async {
2051 Ok(())
2052 })
2053 .detach();
2054
2055 language_server
2056 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2057 let this = this.downgrade();
2058 let adapter = adapter.clone();
2059 let language_server = language_server.clone();
2060 move |params, cx| {
2061 Self::on_lsp_workspace_edit(
2062 this,
2063 params,
2064 server_id,
2065 adapter.clone(),
2066 language_server.clone(),
2067 cx,
2068 )
2069 }
2070 })
2071 .detach();
2072
2073 language_server
2074 .on_notification::<lsp::notification::Progress, _>({
2075 let this = this.downgrade();
2076 move |params, mut cx| {
2077 if let Some(this) = this.upgrade(&cx) {
2078 this.update(&mut cx, |this, cx| {
2079 this.on_lsp_progress(
2080 params,
2081 server_id,
2082 disk_based_diagnostics_progress_token,
2083 cx,
2084 );
2085 });
2086 }
2087 }
2088 })
2089 .detach();
2090
2091 this.update(&mut cx, |this, cx| {
2092 this.language_servers
2093 .insert(key.clone(), (adapter.clone(), language_server.clone()));
2094 this.language_server_statuses.insert(
2095 server_id,
2096 LanguageServerStatus {
2097 name: language_server.name().to_string(),
2098 pending_work: Default::default(),
2099 has_pending_diagnostic_updates: false,
2100 progress_tokens: Default::default(),
2101 },
2102 );
2103 language_server
2104 .notify::<lsp::notification::DidChangeConfiguration>(
2105 lsp::DidChangeConfigurationParams {
2106 settings: this.language_server_settings.lock().clone(),
2107 },
2108 )
2109 .ok();
2110
2111 if let Some(project_id) = this.shared_remote_id() {
2112 this.client
2113 .send(proto::StartLanguageServer {
2114 project_id,
2115 server: Some(proto::LanguageServer {
2116 id: server_id as u64,
2117 name: language_server.name().to_string(),
2118 }),
2119 })
2120 .log_err();
2121 }
2122
2123 // Tell the language server about every open buffer in the worktree that matches the language.
2124 for buffer in this.opened_buffers.values() {
2125 if let Some(buffer_handle) = buffer.upgrade(cx) {
2126 let buffer = buffer_handle.read(cx);
2127 let file = if let Some(file) = File::from_dyn(buffer.file()) {
2128 file
2129 } else {
2130 continue;
2131 };
2132 let language = if let Some(language) = buffer.language() {
2133 language
2134 } else {
2135 continue;
2136 };
2137 if file.worktree.read(cx).id() != key.0
2138 || language.lsp_adapter().map(|a| a.name())
2139 != Some(key.1.clone())
2140 {
2141 continue;
2142 }
2143
2144 let file = file.as_local()?;
2145 let versions = this
2146 .buffer_snapshots
2147 .entry(buffer.remote_id())
2148 .or_insert_with(|| vec![(0, buffer.text_snapshot())]);
2149 let (version, initial_snapshot) = versions.last().unwrap();
2150 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2151 let language_id = adapter.id_for_language(language.name().as_ref());
2152 language_server
2153 .notify::<lsp::notification::DidOpenTextDocument>(
2154 lsp::DidOpenTextDocumentParams {
2155 text_document: lsp::TextDocumentItem::new(
2156 uri,
2157 language_id.unwrap_or_default(),
2158 *version,
2159 initial_snapshot.text(),
2160 ),
2161 },
2162 )
2163 .log_err()?;
2164 buffer_handle.update(cx, |buffer, cx| {
2165 buffer.set_completion_triggers(
2166 language_server
2167 .capabilities()
2168 .completion_provider
2169 .as_ref()
2170 .and_then(|provider| {
2171 provider.trigger_characters.clone()
2172 })
2173 .unwrap_or(Vec::new()),
2174 cx,
2175 )
2176 });
2177 }
2178 }
2179
2180 cx.notify();
2181 Some(())
2182 });
2183
2184 Some(language_server)
2185 })
2186 });
2187 }
2188
2189 fn stop_language_server(
2190 &mut self,
2191 worktree_id: WorktreeId,
2192 adapter_name: LanguageServerName,
2193 cx: &mut ModelContext<Self>,
2194 ) -> Task<()> {
2195 let key = (worktree_id, adapter_name);
2196 if let Some((_, language_server)) = self.language_servers.remove(&key) {
2197 self.language_server_statuses
2198 .remove(&language_server.server_id());
2199 cx.notify();
2200 }
2201
2202 if let Some(started_language_server) = self.started_language_servers.remove(&key) {
2203 cx.spawn_weak(|this, mut cx| async move {
2204 if let Some(language_server) = started_language_server.await {
2205 if let Some(shutdown) = language_server.shutdown() {
2206 shutdown.await;
2207 }
2208
2209 if let Some(this) = this.upgrade(&cx) {
2210 this.update(&mut cx, |this, cx| {
2211 this.language_server_statuses
2212 .remove(&language_server.server_id());
2213 cx.notify();
2214 });
2215 }
2216 }
2217 })
2218 } else {
2219 Task::ready(())
2220 }
2221 }
2222
2223 pub fn restart_language_servers_for_buffers(
2224 &mut self,
2225 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2226 cx: &mut ModelContext<Self>,
2227 ) -> Option<()> {
2228 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, PathBuf)> = buffers
2229 .into_iter()
2230 .filter_map(|buffer| {
2231 let file = File::from_dyn(buffer.read(cx).file())?;
2232 let worktree = file.worktree.read(cx).as_local()?;
2233 let worktree_id = worktree.id();
2234 let worktree_abs_path = worktree.abs_path().clone();
2235 let full_path = file.full_path(cx);
2236 Some((worktree_id, worktree_abs_path, full_path))
2237 })
2238 .collect();
2239 for (worktree_id, worktree_abs_path, full_path) in language_server_lookup_info {
2240 let language = self.languages.select_language(&full_path)?;
2241 self.restart_language_server(worktree_id, worktree_abs_path, language, cx);
2242 }
2243
2244 None
2245 }
2246
2247 fn restart_language_server(
2248 &mut self,
2249 worktree_id: WorktreeId,
2250 worktree_path: Arc<Path>,
2251 language: Arc<Language>,
2252 cx: &mut ModelContext<Self>,
2253 ) {
2254 let adapter = if let Some(adapter) = language.lsp_adapter() {
2255 adapter
2256 } else {
2257 return;
2258 };
2259
2260 let stop = self.stop_language_server(worktree_id, adapter.name(), cx);
2261 cx.spawn_weak(|this, mut cx| async move {
2262 stop.await;
2263 if let Some(this) = this.upgrade(&cx) {
2264 this.update(&mut cx, |this, cx| {
2265 this.start_language_server(worktree_id, worktree_path, language, cx);
2266 });
2267 }
2268 })
2269 .detach();
2270 }
2271
2272 fn on_lsp_diagnostics_published(
2273 &mut self,
2274 server_id: usize,
2275 mut params: lsp::PublishDiagnosticsParams,
2276 adapter: &Arc<dyn LspAdapter>,
2277 cx: &mut ModelContext<Self>,
2278 ) {
2279 adapter.process_diagnostics(&mut params);
2280 self.update_diagnostics(
2281 server_id,
2282 params,
2283 adapter.disk_based_diagnostic_sources(),
2284 cx,
2285 )
2286 .log_err();
2287 }
2288
2289 fn on_lsp_progress(
2290 &mut self,
2291 progress: lsp::ProgressParams,
2292 server_id: usize,
2293 disk_based_diagnostics_progress_token: Option<&str>,
2294 cx: &mut ModelContext<Self>,
2295 ) {
2296 let token = match progress.token {
2297 lsp::NumberOrString::String(token) => token,
2298 lsp::NumberOrString::Number(token) => {
2299 log::info!("skipping numeric progress token {}", token);
2300 return;
2301 }
2302 };
2303 let progress = match progress.value {
2304 lsp::ProgressParamsValue::WorkDone(value) => value,
2305 };
2306 let language_server_status =
2307 if let Some(status) = self.language_server_statuses.get_mut(&server_id) {
2308 status
2309 } else {
2310 return;
2311 };
2312
2313 if !language_server_status.progress_tokens.contains(&token) {
2314 return;
2315 }
2316
2317 match progress {
2318 lsp::WorkDoneProgress::Begin(report) => {
2319 if Some(token.as_str()) == disk_based_diagnostics_progress_token {
2320 language_server_status.has_pending_diagnostic_updates = true;
2321 self.disk_based_diagnostics_started(server_id, cx);
2322 self.broadcast_language_server_update(
2323 server_id,
2324 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(
2325 proto::LspDiskBasedDiagnosticsUpdating {},
2326 ),
2327 );
2328 } else {
2329 self.on_lsp_work_start(
2330 server_id,
2331 token.clone(),
2332 LanguageServerProgress {
2333 message: report.message.clone(),
2334 percentage: report.percentage.map(|p| p as usize),
2335 last_update_at: Instant::now(),
2336 },
2337 cx,
2338 );
2339 self.broadcast_language_server_update(
2340 server_id,
2341 proto::update_language_server::Variant::WorkStart(proto::LspWorkStart {
2342 token,
2343 message: report.message,
2344 percentage: report.percentage.map(|p| p as u32),
2345 }),
2346 );
2347 }
2348 }
2349 lsp::WorkDoneProgress::Report(report) => {
2350 if Some(token.as_str()) != disk_based_diagnostics_progress_token {
2351 self.on_lsp_work_progress(
2352 server_id,
2353 token.clone(),
2354 LanguageServerProgress {
2355 message: report.message.clone(),
2356 percentage: report.percentage.map(|p| p as usize),
2357 last_update_at: Instant::now(),
2358 },
2359 cx,
2360 );
2361 self.broadcast_language_server_update(
2362 server_id,
2363 proto::update_language_server::Variant::WorkProgress(
2364 proto::LspWorkProgress {
2365 token,
2366 message: report.message,
2367 percentage: report.percentage.map(|p| p as u32),
2368 },
2369 ),
2370 );
2371 }
2372 }
2373 lsp::WorkDoneProgress::End(_) => {
2374 language_server_status.progress_tokens.remove(&token);
2375
2376 if Some(token.as_str()) == disk_based_diagnostics_progress_token {
2377 language_server_status.has_pending_diagnostic_updates = false;
2378 self.disk_based_diagnostics_finished(server_id, cx);
2379 self.broadcast_language_server_update(
2380 server_id,
2381 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2382 proto::LspDiskBasedDiagnosticsUpdated {},
2383 ),
2384 );
2385 } else {
2386 self.on_lsp_work_end(server_id, token.clone(), cx);
2387 self.broadcast_language_server_update(
2388 server_id,
2389 proto::update_language_server::Variant::WorkEnd(proto::LspWorkEnd {
2390 token,
2391 }),
2392 );
2393 }
2394 }
2395 }
2396 }
2397
2398 fn on_lsp_work_start(
2399 &mut self,
2400 language_server_id: usize,
2401 token: String,
2402 progress: LanguageServerProgress,
2403 cx: &mut ModelContext<Self>,
2404 ) {
2405 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2406 status.pending_work.insert(token, progress);
2407 cx.notify();
2408 }
2409 }
2410
2411 fn on_lsp_work_progress(
2412 &mut self,
2413 language_server_id: usize,
2414 token: String,
2415 progress: LanguageServerProgress,
2416 cx: &mut ModelContext<Self>,
2417 ) {
2418 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2419 let entry = status
2420 .pending_work
2421 .entry(token)
2422 .or_insert(LanguageServerProgress {
2423 message: Default::default(),
2424 percentage: Default::default(),
2425 last_update_at: progress.last_update_at,
2426 });
2427 if progress.message.is_some() {
2428 entry.message = progress.message;
2429 }
2430 if progress.percentage.is_some() {
2431 entry.percentage = progress.percentage;
2432 }
2433 entry.last_update_at = progress.last_update_at;
2434 cx.notify();
2435 }
2436 }
2437
2438 fn on_lsp_work_end(
2439 &mut self,
2440 language_server_id: usize,
2441 token: String,
2442 cx: &mut ModelContext<Self>,
2443 ) {
2444 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2445 status.pending_work.remove(&token);
2446 cx.notify();
2447 }
2448 }
2449
2450 async fn on_lsp_workspace_edit(
2451 this: WeakModelHandle<Self>,
2452 params: lsp::ApplyWorkspaceEditParams,
2453 server_id: usize,
2454 adapter: Arc<dyn LspAdapter>,
2455 language_server: Arc<LanguageServer>,
2456 mut cx: AsyncAppContext,
2457 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
2458 let this = this
2459 .upgrade(&cx)
2460 .ok_or_else(|| anyhow!("project project closed"))?;
2461 let transaction = Self::deserialize_workspace_edit(
2462 this.clone(),
2463 params.edit,
2464 true,
2465 adapter.clone(),
2466 language_server.clone(),
2467 &mut cx,
2468 )
2469 .await
2470 .log_err();
2471 this.update(&mut cx, |this, _| {
2472 if let Some(transaction) = transaction {
2473 this.last_workspace_edits_by_language_server
2474 .insert(server_id, transaction);
2475 }
2476 });
2477 Ok(lsp::ApplyWorkspaceEditResponse {
2478 applied: true,
2479 failed_change: None,
2480 failure_reason: None,
2481 })
2482 }
2483
2484 fn broadcast_language_server_update(
2485 &self,
2486 language_server_id: usize,
2487 event: proto::update_language_server::Variant,
2488 ) {
2489 if let Some(project_id) = self.shared_remote_id() {
2490 self.client
2491 .send(proto::UpdateLanguageServer {
2492 project_id,
2493 language_server_id: language_server_id as u64,
2494 variant: Some(event),
2495 })
2496 .log_err();
2497 }
2498 }
2499
2500 pub fn set_language_server_settings(&mut self, settings: serde_json::Value) {
2501 for (_, server) in self.language_servers.values() {
2502 server
2503 .notify::<lsp::notification::DidChangeConfiguration>(
2504 lsp::DidChangeConfigurationParams {
2505 settings: settings.clone(),
2506 },
2507 )
2508 .ok();
2509 }
2510 *self.language_server_settings.lock() = settings;
2511 }
2512
2513 pub fn language_server_statuses(
2514 &self,
2515 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
2516 self.language_server_statuses.values()
2517 }
2518
2519 pub fn update_diagnostics(
2520 &mut self,
2521 language_server_id: usize,
2522 params: lsp::PublishDiagnosticsParams,
2523 disk_based_sources: &[&str],
2524 cx: &mut ModelContext<Self>,
2525 ) -> Result<()> {
2526 let abs_path = params
2527 .uri
2528 .to_file_path()
2529 .map_err(|_| anyhow!("URI is not a file"))?;
2530 let mut diagnostics = Vec::default();
2531 let mut primary_diagnostic_group_ids = HashMap::default();
2532 let mut sources_by_group_id = HashMap::default();
2533 let mut supporting_diagnostics = HashMap::default();
2534 for diagnostic in ¶ms.diagnostics {
2535 let source = diagnostic.source.as_ref();
2536 let code = diagnostic.code.as_ref().map(|code| match code {
2537 lsp::NumberOrString::Number(code) => code.to_string(),
2538 lsp::NumberOrString::String(code) => code.clone(),
2539 });
2540 let range = range_from_lsp(diagnostic.range);
2541 let is_supporting = diagnostic
2542 .related_information
2543 .as_ref()
2544 .map_or(false, |infos| {
2545 infos.iter().any(|info| {
2546 primary_diagnostic_group_ids.contains_key(&(
2547 source,
2548 code.clone(),
2549 range_from_lsp(info.location.range),
2550 ))
2551 })
2552 });
2553
2554 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
2555 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
2556 });
2557
2558 if is_supporting {
2559 supporting_diagnostics.insert(
2560 (source, code.clone(), range),
2561 (diagnostic.severity, is_unnecessary),
2562 );
2563 } else {
2564 let group_id = post_inc(&mut self.next_diagnostic_group_id);
2565 let is_disk_based = source.map_or(false, |source| {
2566 disk_based_sources.contains(&source.as_str())
2567 });
2568
2569 sources_by_group_id.insert(group_id, source);
2570 primary_diagnostic_group_ids
2571 .insert((source, code.clone(), range.clone()), group_id);
2572
2573 diagnostics.push(DiagnosticEntry {
2574 range,
2575 diagnostic: Diagnostic {
2576 code: code.clone(),
2577 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
2578 message: diagnostic.message.clone(),
2579 group_id,
2580 is_primary: true,
2581 is_valid: true,
2582 is_disk_based,
2583 is_unnecessary,
2584 },
2585 });
2586 if let Some(infos) = &diagnostic.related_information {
2587 for info in infos {
2588 if info.location.uri == params.uri && !info.message.is_empty() {
2589 let range = range_from_lsp(info.location.range);
2590 diagnostics.push(DiagnosticEntry {
2591 range,
2592 diagnostic: Diagnostic {
2593 code: code.clone(),
2594 severity: DiagnosticSeverity::INFORMATION,
2595 message: info.message.clone(),
2596 group_id,
2597 is_primary: false,
2598 is_valid: true,
2599 is_disk_based,
2600 is_unnecessary: false,
2601 },
2602 });
2603 }
2604 }
2605 }
2606 }
2607 }
2608
2609 for entry in &mut diagnostics {
2610 let diagnostic = &mut entry.diagnostic;
2611 if !diagnostic.is_primary {
2612 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
2613 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
2614 source,
2615 diagnostic.code.clone(),
2616 entry.range.clone(),
2617 )) {
2618 if let Some(severity) = severity {
2619 diagnostic.severity = severity;
2620 }
2621 diagnostic.is_unnecessary = is_unnecessary;
2622 }
2623 }
2624 }
2625
2626 self.update_diagnostic_entries(
2627 language_server_id,
2628 abs_path,
2629 params.version,
2630 diagnostics,
2631 cx,
2632 )?;
2633 Ok(())
2634 }
2635
2636 pub fn update_diagnostic_entries(
2637 &mut self,
2638 language_server_id: usize,
2639 abs_path: PathBuf,
2640 version: Option<i32>,
2641 diagnostics: Vec<DiagnosticEntry<PointUtf16>>,
2642 cx: &mut ModelContext<Project>,
2643 ) -> Result<(), anyhow::Error> {
2644 let (worktree, relative_path) = self
2645 .find_local_worktree(&abs_path, cx)
2646 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
2647 if !worktree.read(cx).is_visible() {
2648 return Ok(());
2649 }
2650
2651 let project_path = ProjectPath {
2652 worktree_id: worktree.read(cx).id(),
2653 path: relative_path.into(),
2654 };
2655 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
2656 self.update_buffer_diagnostics(&buffer, diagnostics.clone(), version, cx)?;
2657 }
2658
2659 let updated = worktree.update(cx, |worktree, cx| {
2660 worktree
2661 .as_local_mut()
2662 .ok_or_else(|| anyhow!("not a local worktree"))?
2663 .update_diagnostics(
2664 language_server_id,
2665 project_path.path.clone(),
2666 diagnostics,
2667 cx,
2668 )
2669 })?;
2670 if updated {
2671 cx.emit(Event::DiagnosticsUpdated {
2672 language_server_id,
2673 path: project_path,
2674 });
2675 }
2676 Ok(())
2677 }
2678
2679 fn update_buffer_diagnostics(
2680 &mut self,
2681 buffer: &ModelHandle<Buffer>,
2682 mut diagnostics: Vec<DiagnosticEntry<PointUtf16>>,
2683 version: Option<i32>,
2684 cx: &mut ModelContext<Self>,
2685 ) -> Result<()> {
2686 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
2687 Ordering::Equal
2688 .then_with(|| b.is_primary.cmp(&a.is_primary))
2689 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
2690 .then_with(|| a.severity.cmp(&b.severity))
2691 .then_with(|| a.message.cmp(&b.message))
2692 }
2693
2694 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, version, cx)?;
2695
2696 diagnostics.sort_unstable_by(|a, b| {
2697 Ordering::Equal
2698 .then_with(|| a.range.start.cmp(&b.range.start))
2699 .then_with(|| b.range.end.cmp(&a.range.end))
2700 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
2701 });
2702
2703 let mut sanitized_diagnostics = Vec::new();
2704 let edits_since_save = Patch::new(
2705 snapshot
2706 .edits_since::<PointUtf16>(buffer.read(cx).saved_version())
2707 .collect(),
2708 );
2709 for entry in diagnostics {
2710 let start;
2711 let end;
2712 if entry.diagnostic.is_disk_based {
2713 // Some diagnostics are based on files on disk instead of buffers'
2714 // current contents. Adjust these diagnostics' ranges to reflect
2715 // any unsaved edits.
2716 start = edits_since_save.old_to_new(entry.range.start);
2717 end = edits_since_save.old_to_new(entry.range.end);
2718 } else {
2719 start = entry.range.start;
2720 end = entry.range.end;
2721 }
2722
2723 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
2724 ..snapshot.clip_point_utf16(end, Bias::Right);
2725
2726 // Expand empty ranges by one character
2727 if range.start == range.end {
2728 range.end.column += 1;
2729 range.end = snapshot.clip_point_utf16(range.end, Bias::Right);
2730 if range.start == range.end && range.end.column > 0 {
2731 range.start.column -= 1;
2732 range.start = snapshot.clip_point_utf16(range.start, Bias::Left);
2733 }
2734 }
2735
2736 sanitized_diagnostics.push(DiagnosticEntry {
2737 range,
2738 diagnostic: entry.diagnostic,
2739 });
2740 }
2741 drop(edits_since_save);
2742
2743 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
2744 buffer.update(cx, |buffer, cx| buffer.update_diagnostics(set, cx));
2745 Ok(())
2746 }
2747
2748 pub fn reload_buffers(
2749 &self,
2750 buffers: HashSet<ModelHandle<Buffer>>,
2751 push_to_history: bool,
2752 cx: &mut ModelContext<Self>,
2753 ) -> Task<Result<ProjectTransaction>> {
2754 let mut local_buffers = Vec::new();
2755 let mut remote_buffers = None;
2756 for buffer_handle in buffers {
2757 let buffer = buffer_handle.read(cx);
2758 if buffer.is_dirty() {
2759 if let Some(file) = File::from_dyn(buffer.file()) {
2760 if file.is_local() {
2761 local_buffers.push(buffer_handle);
2762 } else {
2763 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
2764 }
2765 }
2766 }
2767 }
2768
2769 let remote_buffers = self.remote_id().zip(remote_buffers);
2770 let client = self.client.clone();
2771
2772 cx.spawn(|this, mut cx| async move {
2773 let mut project_transaction = ProjectTransaction::default();
2774
2775 if let Some((project_id, remote_buffers)) = remote_buffers {
2776 let response = client
2777 .request(proto::ReloadBuffers {
2778 project_id,
2779 buffer_ids: remote_buffers
2780 .iter()
2781 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
2782 .collect(),
2783 })
2784 .await?
2785 .transaction
2786 .ok_or_else(|| anyhow!("missing transaction"))?;
2787 project_transaction = this
2788 .update(&mut cx, |this, cx| {
2789 this.deserialize_project_transaction(response, push_to_history, cx)
2790 })
2791 .await?;
2792 }
2793
2794 for buffer in local_buffers {
2795 let transaction = buffer
2796 .update(&mut cx, |buffer, cx| buffer.reload(cx))
2797 .await?;
2798 buffer.update(&mut cx, |buffer, cx| {
2799 if let Some(transaction) = transaction {
2800 if !push_to_history {
2801 buffer.forget_transaction(transaction.id);
2802 }
2803 project_transaction.0.insert(cx.handle(), transaction);
2804 }
2805 });
2806 }
2807
2808 Ok(project_transaction)
2809 })
2810 }
2811
2812 pub fn format(
2813 &self,
2814 buffers: HashSet<ModelHandle<Buffer>>,
2815 push_to_history: bool,
2816 cx: &mut ModelContext<Project>,
2817 ) -> Task<Result<ProjectTransaction>> {
2818 let mut local_buffers = Vec::new();
2819 let mut remote_buffers = None;
2820 for buffer_handle in buffers {
2821 let buffer = buffer_handle.read(cx);
2822 if let Some(file) = File::from_dyn(buffer.file()) {
2823 if let Some(buffer_abs_path) = file.as_local().map(|f| f.abs_path(cx)) {
2824 if let Some((_, server)) = self.language_server_for_buffer(buffer, cx) {
2825 local_buffers.push((buffer_handle, buffer_abs_path, server.clone()));
2826 }
2827 } else {
2828 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
2829 }
2830 } else {
2831 return Task::ready(Ok(Default::default()));
2832 }
2833 }
2834
2835 let remote_buffers = self.remote_id().zip(remote_buffers);
2836 let client = self.client.clone();
2837
2838 cx.spawn(|this, mut cx| async move {
2839 let mut project_transaction = ProjectTransaction::default();
2840
2841 if let Some((project_id, remote_buffers)) = remote_buffers {
2842 let response = client
2843 .request(proto::FormatBuffers {
2844 project_id,
2845 buffer_ids: remote_buffers
2846 .iter()
2847 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
2848 .collect(),
2849 })
2850 .await?
2851 .transaction
2852 .ok_or_else(|| anyhow!("missing transaction"))?;
2853 project_transaction = this
2854 .update(&mut cx, |this, cx| {
2855 this.deserialize_project_transaction(response, push_to_history, cx)
2856 })
2857 .await?;
2858 }
2859
2860 for (buffer, buffer_abs_path, language_server) in local_buffers {
2861 let text_document = lsp::TextDocumentIdentifier::new(
2862 lsp::Url::from_file_path(&buffer_abs_path).unwrap(),
2863 );
2864 let capabilities = &language_server.capabilities();
2865 let tab_size = cx.update(|cx| {
2866 let language_name = buffer.read(cx).language().map(|language| language.name());
2867 cx.global::<Settings>().tab_size(language_name.as_deref())
2868 });
2869 let lsp_edits = if capabilities
2870 .document_formatting_provider
2871 .as_ref()
2872 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
2873 {
2874 language_server
2875 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
2876 text_document,
2877 options: lsp::FormattingOptions {
2878 tab_size: tab_size.into(),
2879 insert_spaces: true,
2880 insert_final_newline: Some(true),
2881 ..Default::default()
2882 },
2883 work_done_progress_params: Default::default(),
2884 })
2885 .await?
2886 } else if capabilities
2887 .document_range_formatting_provider
2888 .as_ref()
2889 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
2890 {
2891 let buffer_start = lsp::Position::new(0, 0);
2892 let buffer_end =
2893 buffer.read_with(&cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
2894 language_server
2895 .request::<lsp::request::RangeFormatting>(
2896 lsp::DocumentRangeFormattingParams {
2897 text_document,
2898 range: lsp::Range::new(buffer_start, buffer_end),
2899 options: lsp::FormattingOptions {
2900 tab_size: tab_size.into(),
2901 insert_spaces: true,
2902 insert_final_newline: Some(true),
2903 ..Default::default()
2904 },
2905 work_done_progress_params: Default::default(),
2906 },
2907 )
2908 .await?
2909 } else {
2910 continue;
2911 };
2912
2913 if let Some(lsp_edits) = lsp_edits {
2914 let edits = this
2915 .update(&mut cx, |this, cx| {
2916 this.edits_from_lsp(&buffer, lsp_edits, None, cx)
2917 })
2918 .await?;
2919 buffer.update(&mut cx, |buffer, cx| {
2920 buffer.finalize_last_transaction();
2921 buffer.start_transaction();
2922 for (range, text) in edits {
2923 buffer.edit([(range, text)], cx);
2924 }
2925 if buffer.end_transaction(cx).is_some() {
2926 let transaction = buffer.finalize_last_transaction().unwrap().clone();
2927 if !push_to_history {
2928 buffer.forget_transaction(transaction.id);
2929 }
2930 project_transaction.0.insert(cx.handle(), transaction);
2931 }
2932 });
2933 }
2934 }
2935
2936 Ok(project_transaction)
2937 })
2938 }
2939
2940 pub fn definition<T: ToPointUtf16>(
2941 &self,
2942 buffer: &ModelHandle<Buffer>,
2943 position: T,
2944 cx: &mut ModelContext<Self>,
2945 ) -> Task<Result<Vec<LocationLink>>> {
2946 let position = position.to_point_utf16(buffer.read(cx));
2947 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
2948 }
2949
2950 pub fn references<T: ToPointUtf16>(
2951 &self,
2952 buffer: &ModelHandle<Buffer>,
2953 position: T,
2954 cx: &mut ModelContext<Self>,
2955 ) -> Task<Result<Vec<Location>>> {
2956 let position = position.to_point_utf16(buffer.read(cx));
2957 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
2958 }
2959
2960 pub fn document_highlights<T: ToPointUtf16>(
2961 &self,
2962 buffer: &ModelHandle<Buffer>,
2963 position: T,
2964 cx: &mut ModelContext<Self>,
2965 ) -> Task<Result<Vec<DocumentHighlight>>> {
2966 let position = position.to_point_utf16(buffer.read(cx));
2967
2968 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
2969 }
2970
2971 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
2972 if self.is_local() {
2973 let mut requests = Vec::new();
2974 for ((worktree_id, _), (lsp_adapter, language_server)) in self.language_servers.iter() {
2975 let worktree_id = *worktree_id;
2976 if let Some(worktree) = self
2977 .worktree_for_id(worktree_id, cx)
2978 .and_then(|worktree| worktree.read(cx).as_local())
2979 {
2980 let lsp_adapter = lsp_adapter.clone();
2981 let worktree_abs_path = worktree.abs_path().clone();
2982 requests.push(
2983 language_server
2984 .request::<lsp::request::WorkspaceSymbol>(lsp::WorkspaceSymbolParams {
2985 query: query.to_string(),
2986 ..Default::default()
2987 })
2988 .log_err()
2989 .map(move |response| {
2990 (
2991 lsp_adapter,
2992 worktree_id,
2993 worktree_abs_path,
2994 response.unwrap_or_default(),
2995 )
2996 }),
2997 );
2998 }
2999 }
3000
3001 cx.spawn_weak(|this, cx| async move {
3002 let responses = futures::future::join_all(requests).await;
3003 let this = if let Some(this) = this.upgrade(&cx) {
3004 this
3005 } else {
3006 return Ok(Default::default());
3007 };
3008 this.read_with(&cx, |this, cx| {
3009 let mut symbols = Vec::new();
3010 for (adapter, source_worktree_id, worktree_abs_path, response) in responses {
3011 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3012 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3013 let mut worktree_id = source_worktree_id;
3014 let path;
3015 if let Some((worktree, rel_path)) =
3016 this.find_local_worktree(&abs_path, cx)
3017 {
3018 worktree_id = worktree.read(cx).id();
3019 path = rel_path;
3020 } else {
3021 path = relativize_path(&worktree_abs_path, &abs_path);
3022 }
3023
3024 let label = this
3025 .languages
3026 .select_language(&path)
3027 .and_then(|language| {
3028 language.label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3029 })
3030 .unwrap_or_else(|| CodeLabel::plain(lsp_symbol.name.clone(), None));
3031 let signature = this.symbol_signature(worktree_id, &path);
3032
3033 Some(Symbol {
3034 source_worktree_id,
3035 worktree_id,
3036 language_server_name: adapter.name(),
3037 name: lsp_symbol.name,
3038 kind: lsp_symbol.kind,
3039 label,
3040 path,
3041 range: range_from_lsp(lsp_symbol.location.range),
3042 signature,
3043 })
3044 }));
3045 }
3046 Ok(symbols)
3047 })
3048 })
3049 } else if let Some(project_id) = self.remote_id() {
3050 let request = self.client.request(proto::GetProjectSymbols {
3051 project_id,
3052 query: query.to_string(),
3053 });
3054 cx.spawn_weak(|this, cx| async move {
3055 let response = request.await?;
3056 let mut symbols = Vec::new();
3057 if let Some(this) = this.upgrade(&cx) {
3058 this.read_with(&cx, |this, _| {
3059 symbols.extend(
3060 response
3061 .symbols
3062 .into_iter()
3063 .filter_map(|symbol| this.deserialize_symbol(symbol).log_err()),
3064 );
3065 })
3066 }
3067 Ok(symbols)
3068 })
3069 } else {
3070 Task::ready(Ok(Default::default()))
3071 }
3072 }
3073
3074 pub fn open_buffer_for_symbol(
3075 &mut self,
3076 symbol: &Symbol,
3077 cx: &mut ModelContext<Self>,
3078 ) -> Task<Result<ModelHandle<Buffer>>> {
3079 if self.is_local() {
3080 let (lsp_adapter, language_server) = if let Some(server) = self.language_servers.get(&(
3081 symbol.source_worktree_id,
3082 symbol.language_server_name.clone(),
3083 )) {
3084 server.clone()
3085 } else {
3086 return Task::ready(Err(anyhow!(
3087 "language server for worktree and language not found"
3088 )));
3089 };
3090
3091 let worktree_abs_path = if let Some(worktree_abs_path) = self
3092 .worktree_for_id(symbol.worktree_id, cx)
3093 .and_then(|worktree| worktree.read(cx).as_local())
3094 .map(|local_worktree| local_worktree.abs_path())
3095 {
3096 worktree_abs_path
3097 } else {
3098 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3099 };
3100 let symbol_abs_path = worktree_abs_path.join(&symbol.path);
3101 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3102 uri
3103 } else {
3104 return Task::ready(Err(anyhow!("invalid symbol path")));
3105 };
3106
3107 self.open_local_buffer_via_lsp(symbol_uri, lsp_adapter, language_server, cx)
3108 } else if let Some(project_id) = self.remote_id() {
3109 let request = self.client.request(proto::OpenBufferForSymbol {
3110 project_id,
3111 symbol: Some(serialize_symbol(symbol)),
3112 });
3113 cx.spawn(|this, mut cx| async move {
3114 let response = request.await?;
3115 let buffer = response.buffer.ok_or_else(|| anyhow!("invalid buffer"))?;
3116 this.update(&mut cx, |this, cx| this.deserialize_buffer(buffer, cx))
3117 .await
3118 })
3119 } else {
3120 Task::ready(Err(anyhow!("project does not have a remote id")))
3121 }
3122 }
3123
3124 pub fn hover<T: ToPointUtf16>(
3125 &self,
3126 buffer: &ModelHandle<Buffer>,
3127 position: T,
3128 cx: &mut ModelContext<Self>,
3129 ) -> Task<Result<Option<Hover>>> {
3130 let position = position.to_point_utf16(buffer.read(cx));
3131 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3132 }
3133
3134 pub fn completions<T: ToPointUtf16>(
3135 &self,
3136 source_buffer_handle: &ModelHandle<Buffer>,
3137 position: T,
3138 cx: &mut ModelContext<Self>,
3139 ) -> Task<Result<Vec<Completion>>> {
3140 let source_buffer_handle = source_buffer_handle.clone();
3141 let source_buffer = source_buffer_handle.read(cx);
3142 let buffer_id = source_buffer.remote_id();
3143 let language = source_buffer.language().cloned();
3144 let worktree;
3145 let buffer_abs_path;
3146 if let Some(file) = File::from_dyn(source_buffer.file()) {
3147 worktree = file.worktree.clone();
3148 buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3149 } else {
3150 return Task::ready(Ok(Default::default()));
3151 };
3152
3153 let position = position.to_point_utf16(source_buffer);
3154 let anchor = source_buffer.anchor_after(position);
3155
3156 if worktree.read(cx).as_local().is_some() {
3157 let buffer_abs_path = buffer_abs_path.unwrap();
3158 let (_, lang_server) =
3159 if let Some(server) = self.language_server_for_buffer(source_buffer, cx) {
3160 server.clone()
3161 } else {
3162 return Task::ready(Ok(Default::default()));
3163 };
3164
3165 cx.spawn(|_, cx| async move {
3166 let completions = lang_server
3167 .request::<lsp::request::Completion>(lsp::CompletionParams {
3168 text_document_position: lsp::TextDocumentPositionParams::new(
3169 lsp::TextDocumentIdentifier::new(
3170 lsp::Url::from_file_path(buffer_abs_path).unwrap(),
3171 ),
3172 point_to_lsp(position),
3173 ),
3174 context: Default::default(),
3175 work_done_progress_params: Default::default(),
3176 partial_result_params: Default::default(),
3177 })
3178 .await
3179 .context("lsp completion request failed")?;
3180
3181 let completions = if let Some(completions) = completions {
3182 match completions {
3183 lsp::CompletionResponse::Array(completions) => completions,
3184 lsp::CompletionResponse::List(list) => list.items,
3185 }
3186 } else {
3187 Default::default()
3188 };
3189
3190 source_buffer_handle.read_with(&cx, |this, _| {
3191 let snapshot = this.snapshot();
3192 let clipped_position = this.clip_point_utf16(position, Bias::Left);
3193 let mut range_for_token = None;
3194 Ok(completions
3195 .into_iter()
3196 .filter_map(|lsp_completion| {
3197 // For now, we can only handle additional edits if they are returned
3198 // when resolving the completion, not if they are present initially.
3199 if lsp_completion
3200 .additional_text_edits
3201 .as_ref()
3202 .map_or(false, |edits| !edits.is_empty())
3203 {
3204 return None;
3205 }
3206
3207 let (old_range, new_text) = match lsp_completion.text_edit.as_ref() {
3208 // If the language server provides a range to overwrite, then
3209 // check that the range is valid.
3210 Some(lsp::CompletionTextEdit::Edit(edit)) => {
3211 let range = range_from_lsp(edit.range);
3212 let start = snapshot.clip_point_utf16(range.start, Bias::Left);
3213 let end = snapshot.clip_point_utf16(range.end, Bias::Left);
3214 if start != range.start || end != range.end {
3215 log::info!("completion out of expected range");
3216 return None;
3217 }
3218 (
3219 snapshot.anchor_before(start)..snapshot.anchor_after(end),
3220 edit.new_text.clone(),
3221 )
3222 }
3223 // If the language server does not provide a range, then infer
3224 // the range based on the syntax tree.
3225 None => {
3226 if position != clipped_position {
3227 log::info!("completion out of expected range");
3228 return None;
3229 }
3230 let Range { start, end } = range_for_token
3231 .get_or_insert_with(|| {
3232 let offset = position.to_offset(&snapshot);
3233 let (range, kind) = snapshot.surrounding_word(offset);
3234 if kind == Some(CharKind::Word) {
3235 range
3236 } else {
3237 offset..offset
3238 }
3239 })
3240 .clone();
3241 let text = lsp_completion
3242 .insert_text
3243 .as_ref()
3244 .unwrap_or(&lsp_completion.label)
3245 .clone();
3246 (
3247 snapshot.anchor_before(start)..snapshot.anchor_after(end),
3248 text.clone(),
3249 )
3250 }
3251 Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
3252 log::info!("unsupported insert/replace completion");
3253 return None;
3254 }
3255 };
3256
3257 Some(Completion {
3258 old_range,
3259 new_text,
3260 label: language
3261 .as_ref()
3262 .and_then(|l| l.label_for_completion(&lsp_completion))
3263 .unwrap_or_else(|| {
3264 CodeLabel::plain(
3265 lsp_completion.label.clone(),
3266 lsp_completion.filter_text.as_deref(),
3267 )
3268 }),
3269 lsp_completion,
3270 })
3271 })
3272 .collect())
3273 })
3274 })
3275 } else if let Some(project_id) = self.remote_id() {
3276 let rpc = self.client.clone();
3277 let message = proto::GetCompletions {
3278 project_id,
3279 buffer_id,
3280 position: Some(language::proto::serialize_anchor(&anchor)),
3281 version: serialize_version(&source_buffer.version()),
3282 };
3283 cx.spawn_weak(|_, mut cx| async move {
3284 let response = rpc.request(message).await?;
3285
3286 source_buffer_handle
3287 .update(&mut cx, |buffer, _| {
3288 buffer.wait_for_version(deserialize_version(response.version))
3289 })
3290 .await;
3291
3292 response
3293 .completions
3294 .into_iter()
3295 .map(|completion| {
3296 language::proto::deserialize_completion(completion, language.as_ref())
3297 })
3298 .collect()
3299 })
3300 } else {
3301 Task::ready(Ok(Default::default()))
3302 }
3303 }
3304
3305 pub fn apply_additional_edits_for_completion(
3306 &self,
3307 buffer_handle: ModelHandle<Buffer>,
3308 completion: Completion,
3309 push_to_history: bool,
3310 cx: &mut ModelContext<Self>,
3311 ) -> Task<Result<Option<Transaction>>> {
3312 let buffer = buffer_handle.read(cx);
3313 let buffer_id = buffer.remote_id();
3314
3315 if self.is_local() {
3316 let (_, lang_server) = if let Some(server) = self.language_server_for_buffer(buffer, cx)
3317 {
3318 server.clone()
3319 } else {
3320 return Task::ready(Ok(Default::default()));
3321 };
3322
3323 cx.spawn(|this, mut cx| async move {
3324 let resolved_completion = lang_server
3325 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3326 .await?;
3327 if let Some(edits) = resolved_completion.additional_text_edits {
3328 let edits = this
3329 .update(&mut cx, |this, cx| {
3330 this.edits_from_lsp(&buffer_handle, edits, None, cx)
3331 })
3332 .await?;
3333 buffer_handle.update(&mut cx, |buffer, cx| {
3334 buffer.finalize_last_transaction();
3335 buffer.start_transaction();
3336 for (range, text) in edits {
3337 buffer.edit([(range, text)], cx);
3338 }
3339 let transaction = if buffer.end_transaction(cx).is_some() {
3340 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3341 if !push_to_history {
3342 buffer.forget_transaction(transaction.id);
3343 }
3344 Some(transaction)
3345 } else {
3346 None
3347 };
3348 Ok(transaction)
3349 })
3350 } else {
3351 Ok(None)
3352 }
3353 })
3354 } else if let Some(project_id) = self.remote_id() {
3355 let client = self.client.clone();
3356 cx.spawn(|_, mut cx| async move {
3357 let response = client
3358 .request(proto::ApplyCompletionAdditionalEdits {
3359 project_id,
3360 buffer_id,
3361 completion: Some(language::proto::serialize_completion(&completion)),
3362 })
3363 .await?;
3364
3365 if let Some(transaction) = response.transaction {
3366 let transaction = language::proto::deserialize_transaction(transaction)?;
3367 buffer_handle
3368 .update(&mut cx, |buffer, _| {
3369 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
3370 })
3371 .await;
3372 if push_to_history {
3373 buffer_handle.update(&mut cx, |buffer, _| {
3374 buffer.push_transaction(transaction.clone(), Instant::now());
3375 });
3376 }
3377 Ok(Some(transaction))
3378 } else {
3379 Ok(None)
3380 }
3381 })
3382 } else {
3383 Task::ready(Err(anyhow!("project does not have a remote id")))
3384 }
3385 }
3386
3387 pub fn code_actions<T: Clone + ToOffset>(
3388 &self,
3389 buffer_handle: &ModelHandle<Buffer>,
3390 range: Range<T>,
3391 cx: &mut ModelContext<Self>,
3392 ) -> Task<Result<Vec<CodeAction>>> {
3393 let buffer_handle = buffer_handle.clone();
3394 let buffer = buffer_handle.read(cx);
3395 let snapshot = buffer.snapshot();
3396 let relevant_diagnostics = snapshot
3397 .diagnostics_in_range::<usize, usize>(range.to_offset(&snapshot), false)
3398 .map(|entry| entry.to_lsp_diagnostic_stub())
3399 .collect();
3400 let buffer_id = buffer.remote_id();
3401 let worktree;
3402 let buffer_abs_path;
3403 if let Some(file) = File::from_dyn(buffer.file()) {
3404 worktree = file.worktree.clone();
3405 buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3406 } else {
3407 return Task::ready(Ok(Default::default()));
3408 };
3409 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3410
3411 if worktree.read(cx).as_local().is_some() {
3412 let buffer_abs_path = buffer_abs_path.unwrap();
3413 let (_, lang_server) = if let Some(server) = self.language_server_for_buffer(buffer, cx)
3414 {
3415 server.clone()
3416 } else {
3417 return Task::ready(Ok(Default::default()));
3418 };
3419
3420 let lsp_range = range_to_lsp(range.to_point_utf16(buffer));
3421 cx.foreground().spawn(async move {
3422 if !lang_server.capabilities().code_action_provider.is_some() {
3423 return Ok(Default::default());
3424 }
3425
3426 Ok(lang_server
3427 .request::<lsp::request::CodeActionRequest>(lsp::CodeActionParams {
3428 text_document: lsp::TextDocumentIdentifier::new(
3429 lsp::Url::from_file_path(buffer_abs_path).unwrap(),
3430 ),
3431 range: lsp_range,
3432 work_done_progress_params: Default::default(),
3433 partial_result_params: Default::default(),
3434 context: lsp::CodeActionContext {
3435 diagnostics: relevant_diagnostics,
3436 only: Some(vec![
3437 lsp::CodeActionKind::QUICKFIX,
3438 lsp::CodeActionKind::REFACTOR,
3439 lsp::CodeActionKind::REFACTOR_EXTRACT,
3440 lsp::CodeActionKind::SOURCE,
3441 ]),
3442 },
3443 })
3444 .await?
3445 .unwrap_or_default()
3446 .into_iter()
3447 .filter_map(|entry| {
3448 if let lsp::CodeActionOrCommand::CodeAction(lsp_action) = entry {
3449 Some(CodeAction {
3450 range: range.clone(),
3451 lsp_action,
3452 })
3453 } else {
3454 None
3455 }
3456 })
3457 .collect())
3458 })
3459 } else if let Some(project_id) = self.remote_id() {
3460 let rpc = self.client.clone();
3461 let version = buffer.version();
3462 cx.spawn_weak(|_, mut cx| async move {
3463 let response = rpc
3464 .request(proto::GetCodeActions {
3465 project_id,
3466 buffer_id,
3467 start: Some(language::proto::serialize_anchor(&range.start)),
3468 end: Some(language::proto::serialize_anchor(&range.end)),
3469 version: serialize_version(&version),
3470 })
3471 .await?;
3472
3473 buffer_handle
3474 .update(&mut cx, |buffer, _| {
3475 buffer.wait_for_version(deserialize_version(response.version))
3476 })
3477 .await;
3478
3479 response
3480 .actions
3481 .into_iter()
3482 .map(language::proto::deserialize_code_action)
3483 .collect()
3484 })
3485 } else {
3486 Task::ready(Ok(Default::default()))
3487 }
3488 }
3489
3490 pub fn apply_code_action(
3491 &self,
3492 buffer_handle: ModelHandle<Buffer>,
3493 mut action: CodeAction,
3494 push_to_history: bool,
3495 cx: &mut ModelContext<Self>,
3496 ) -> Task<Result<ProjectTransaction>> {
3497 if self.is_local() {
3498 let buffer = buffer_handle.read(cx);
3499 let (lsp_adapter, lang_server) =
3500 if let Some(server) = self.language_server_for_buffer(buffer, cx) {
3501 server.clone()
3502 } else {
3503 return Task::ready(Ok(Default::default()));
3504 };
3505 let range = action.range.to_point_utf16(buffer);
3506
3507 cx.spawn(|this, mut cx| async move {
3508 if let Some(lsp_range) = action
3509 .lsp_action
3510 .data
3511 .as_mut()
3512 .and_then(|d| d.get_mut("codeActionParams"))
3513 .and_then(|d| d.get_mut("range"))
3514 {
3515 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
3516 action.lsp_action = lang_server
3517 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
3518 .await?;
3519 } else {
3520 let actions = this
3521 .update(&mut cx, |this, cx| {
3522 this.code_actions(&buffer_handle, action.range, cx)
3523 })
3524 .await?;
3525 action.lsp_action = actions
3526 .into_iter()
3527 .find(|a| a.lsp_action.title == action.lsp_action.title)
3528 .ok_or_else(|| anyhow!("code action is outdated"))?
3529 .lsp_action;
3530 }
3531
3532 if let Some(edit) = action.lsp_action.edit {
3533 Self::deserialize_workspace_edit(
3534 this,
3535 edit,
3536 push_to_history,
3537 lsp_adapter,
3538 lang_server,
3539 &mut cx,
3540 )
3541 .await
3542 } else if let Some(command) = action.lsp_action.command {
3543 this.update(&mut cx, |this, _| {
3544 this.last_workspace_edits_by_language_server
3545 .remove(&lang_server.server_id());
3546 });
3547 lang_server
3548 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
3549 command: command.command,
3550 arguments: command.arguments.unwrap_or_default(),
3551 ..Default::default()
3552 })
3553 .await?;
3554 Ok(this.update(&mut cx, |this, _| {
3555 this.last_workspace_edits_by_language_server
3556 .remove(&lang_server.server_id())
3557 .unwrap_or_default()
3558 }))
3559 } else {
3560 Ok(ProjectTransaction::default())
3561 }
3562 })
3563 } else if let Some(project_id) = self.remote_id() {
3564 let client = self.client.clone();
3565 let request = proto::ApplyCodeAction {
3566 project_id,
3567 buffer_id: buffer_handle.read(cx).remote_id(),
3568 action: Some(language::proto::serialize_code_action(&action)),
3569 };
3570 cx.spawn(|this, mut cx| async move {
3571 let response = client
3572 .request(request)
3573 .await?
3574 .transaction
3575 .ok_or_else(|| anyhow!("missing transaction"))?;
3576 this.update(&mut cx, |this, cx| {
3577 this.deserialize_project_transaction(response, push_to_history, cx)
3578 })
3579 .await
3580 })
3581 } else {
3582 Task::ready(Err(anyhow!("project does not have a remote id")))
3583 }
3584 }
3585
3586 async fn deserialize_workspace_edit(
3587 this: ModelHandle<Self>,
3588 edit: lsp::WorkspaceEdit,
3589 push_to_history: bool,
3590 lsp_adapter: Arc<dyn LspAdapter>,
3591 language_server: Arc<LanguageServer>,
3592 cx: &mut AsyncAppContext,
3593 ) -> Result<ProjectTransaction> {
3594 let fs = this.read_with(cx, |this, _| this.fs.clone());
3595 let mut operations = Vec::new();
3596 if let Some(document_changes) = edit.document_changes {
3597 match document_changes {
3598 lsp::DocumentChanges::Edits(edits) => {
3599 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
3600 }
3601 lsp::DocumentChanges::Operations(ops) => operations = ops,
3602 }
3603 } else if let Some(changes) = edit.changes {
3604 operations.extend(changes.into_iter().map(|(uri, edits)| {
3605 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
3606 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
3607 uri,
3608 version: None,
3609 },
3610 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
3611 })
3612 }));
3613 }
3614
3615 let mut project_transaction = ProjectTransaction::default();
3616 for operation in operations {
3617 match operation {
3618 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
3619 let abs_path = op
3620 .uri
3621 .to_file_path()
3622 .map_err(|_| anyhow!("can't convert URI to path"))?;
3623
3624 if let Some(parent_path) = abs_path.parent() {
3625 fs.create_dir(parent_path).await?;
3626 }
3627 if abs_path.ends_with("/") {
3628 fs.create_dir(&abs_path).await?;
3629 } else {
3630 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
3631 .await?;
3632 }
3633 }
3634 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
3635 let source_abs_path = op
3636 .old_uri
3637 .to_file_path()
3638 .map_err(|_| anyhow!("can't convert URI to path"))?;
3639 let target_abs_path = op
3640 .new_uri
3641 .to_file_path()
3642 .map_err(|_| anyhow!("can't convert URI to path"))?;
3643 fs.rename(
3644 &source_abs_path,
3645 &target_abs_path,
3646 op.options.map(Into::into).unwrap_or_default(),
3647 )
3648 .await?;
3649 }
3650 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
3651 let abs_path = op
3652 .uri
3653 .to_file_path()
3654 .map_err(|_| anyhow!("can't convert URI to path"))?;
3655 let options = op.options.map(Into::into).unwrap_or_default();
3656 if abs_path.ends_with("/") {
3657 fs.remove_dir(&abs_path, options).await?;
3658 } else {
3659 fs.remove_file(&abs_path, options).await?;
3660 }
3661 }
3662 lsp::DocumentChangeOperation::Edit(op) => {
3663 let buffer_to_edit = this
3664 .update(cx, |this, cx| {
3665 this.open_local_buffer_via_lsp(
3666 op.text_document.uri,
3667 lsp_adapter.clone(),
3668 language_server.clone(),
3669 cx,
3670 )
3671 })
3672 .await?;
3673
3674 let edits = this
3675 .update(cx, |this, cx| {
3676 let edits = op.edits.into_iter().map(|edit| match edit {
3677 lsp::OneOf::Left(edit) => edit,
3678 lsp::OneOf::Right(edit) => edit.text_edit,
3679 });
3680 this.edits_from_lsp(
3681 &buffer_to_edit,
3682 edits,
3683 op.text_document.version,
3684 cx,
3685 )
3686 })
3687 .await?;
3688
3689 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
3690 buffer.finalize_last_transaction();
3691 buffer.start_transaction();
3692 for (range, text) in edits {
3693 buffer.edit([(range, text)], cx);
3694 }
3695 let transaction = if buffer.end_transaction(cx).is_some() {
3696 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3697 if !push_to_history {
3698 buffer.forget_transaction(transaction.id);
3699 }
3700 Some(transaction)
3701 } else {
3702 None
3703 };
3704
3705 transaction
3706 });
3707 if let Some(transaction) = transaction {
3708 project_transaction.0.insert(buffer_to_edit, transaction);
3709 }
3710 }
3711 }
3712 }
3713
3714 Ok(project_transaction)
3715 }
3716
3717 pub fn prepare_rename<T: ToPointUtf16>(
3718 &self,
3719 buffer: ModelHandle<Buffer>,
3720 position: T,
3721 cx: &mut ModelContext<Self>,
3722 ) -> Task<Result<Option<Range<Anchor>>>> {
3723 let position = position.to_point_utf16(buffer.read(cx));
3724 self.request_lsp(buffer, PrepareRename { position }, cx)
3725 }
3726
3727 pub fn perform_rename<T: ToPointUtf16>(
3728 &self,
3729 buffer: ModelHandle<Buffer>,
3730 position: T,
3731 new_name: String,
3732 push_to_history: bool,
3733 cx: &mut ModelContext<Self>,
3734 ) -> Task<Result<ProjectTransaction>> {
3735 let position = position.to_point_utf16(buffer.read(cx));
3736 self.request_lsp(
3737 buffer,
3738 PerformRename {
3739 position,
3740 new_name,
3741 push_to_history,
3742 },
3743 cx,
3744 )
3745 }
3746
3747 pub fn search(
3748 &self,
3749 query: SearchQuery,
3750 cx: &mut ModelContext<Self>,
3751 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
3752 if self.is_local() {
3753 let snapshots = self
3754 .visible_worktrees(cx)
3755 .filter_map(|tree| {
3756 let tree = tree.read(cx).as_local()?;
3757 Some(tree.snapshot())
3758 })
3759 .collect::<Vec<_>>();
3760
3761 let background = cx.background().clone();
3762 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
3763 if path_count == 0 {
3764 return Task::ready(Ok(Default::default()));
3765 }
3766 let workers = background.num_cpus().min(path_count);
3767 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
3768 cx.background()
3769 .spawn({
3770 let fs = self.fs.clone();
3771 let background = cx.background().clone();
3772 let query = query.clone();
3773 async move {
3774 let fs = &fs;
3775 let query = &query;
3776 let matching_paths_tx = &matching_paths_tx;
3777 let paths_per_worker = (path_count + workers - 1) / workers;
3778 let snapshots = &snapshots;
3779 background
3780 .scoped(|scope| {
3781 for worker_ix in 0..workers {
3782 let worker_start_ix = worker_ix * paths_per_worker;
3783 let worker_end_ix = worker_start_ix + paths_per_worker;
3784 scope.spawn(async move {
3785 let mut snapshot_start_ix = 0;
3786 let mut abs_path = PathBuf::new();
3787 for snapshot in snapshots {
3788 let snapshot_end_ix =
3789 snapshot_start_ix + snapshot.visible_file_count();
3790 if worker_end_ix <= snapshot_start_ix {
3791 break;
3792 } else if worker_start_ix > snapshot_end_ix {
3793 snapshot_start_ix = snapshot_end_ix;
3794 continue;
3795 } else {
3796 let start_in_snapshot = worker_start_ix
3797 .saturating_sub(snapshot_start_ix);
3798 let end_in_snapshot =
3799 cmp::min(worker_end_ix, snapshot_end_ix)
3800 - snapshot_start_ix;
3801
3802 for entry in snapshot
3803 .files(false, start_in_snapshot)
3804 .take(end_in_snapshot - start_in_snapshot)
3805 {
3806 if matching_paths_tx.is_closed() {
3807 break;
3808 }
3809
3810 abs_path.clear();
3811 abs_path.push(&snapshot.abs_path());
3812 abs_path.push(&entry.path);
3813 let matches = if let Some(file) =
3814 fs.open_sync(&abs_path).await.log_err()
3815 {
3816 query.detect(file).unwrap_or(false)
3817 } else {
3818 false
3819 };
3820
3821 if matches {
3822 let project_path =
3823 (snapshot.id(), entry.path.clone());
3824 if matching_paths_tx
3825 .send(project_path)
3826 .await
3827 .is_err()
3828 {
3829 break;
3830 }
3831 }
3832 }
3833
3834 snapshot_start_ix = snapshot_end_ix;
3835 }
3836 }
3837 });
3838 }
3839 })
3840 .await;
3841 }
3842 })
3843 .detach();
3844
3845 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
3846 let open_buffers = self
3847 .opened_buffers
3848 .values()
3849 .filter_map(|b| b.upgrade(cx))
3850 .collect::<HashSet<_>>();
3851 cx.spawn(|this, cx| async move {
3852 for buffer in &open_buffers {
3853 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
3854 buffers_tx.send((buffer.clone(), snapshot)).await?;
3855 }
3856
3857 let open_buffers = Rc::new(RefCell::new(open_buffers));
3858 while let Some(project_path) = matching_paths_rx.next().await {
3859 if buffers_tx.is_closed() {
3860 break;
3861 }
3862
3863 let this = this.clone();
3864 let open_buffers = open_buffers.clone();
3865 let buffers_tx = buffers_tx.clone();
3866 cx.spawn(|mut cx| async move {
3867 if let Some(buffer) = this
3868 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
3869 .await
3870 .log_err()
3871 {
3872 if open_buffers.borrow_mut().insert(buffer.clone()) {
3873 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
3874 buffers_tx.send((buffer, snapshot)).await?;
3875 }
3876 }
3877
3878 Ok::<_, anyhow::Error>(())
3879 })
3880 .detach();
3881 }
3882
3883 Ok::<_, anyhow::Error>(())
3884 })
3885 .detach_and_log_err(cx);
3886
3887 let background = cx.background().clone();
3888 cx.background().spawn(async move {
3889 let query = &query;
3890 let mut matched_buffers = Vec::new();
3891 for _ in 0..workers {
3892 matched_buffers.push(HashMap::default());
3893 }
3894 background
3895 .scoped(|scope| {
3896 for worker_matched_buffers in matched_buffers.iter_mut() {
3897 let mut buffers_rx = buffers_rx.clone();
3898 scope.spawn(async move {
3899 while let Some((buffer, snapshot)) = buffers_rx.next().await {
3900 let buffer_matches = query
3901 .search(snapshot.as_rope())
3902 .await
3903 .iter()
3904 .map(|range| {
3905 snapshot.anchor_before(range.start)
3906 ..snapshot.anchor_after(range.end)
3907 })
3908 .collect::<Vec<_>>();
3909 if !buffer_matches.is_empty() {
3910 worker_matched_buffers
3911 .insert(buffer.clone(), buffer_matches);
3912 }
3913 }
3914 });
3915 }
3916 })
3917 .await;
3918 Ok(matched_buffers.into_iter().flatten().collect())
3919 })
3920 } else if let Some(project_id) = self.remote_id() {
3921 let request = self.client.request(query.to_proto(project_id));
3922 cx.spawn(|this, mut cx| async move {
3923 let response = request.await?;
3924 let mut result = HashMap::default();
3925 for location in response.locations {
3926 let buffer = location.buffer.ok_or_else(|| anyhow!("missing buffer"))?;
3927 let target_buffer = this
3928 .update(&mut cx, |this, cx| this.deserialize_buffer(buffer, cx))
3929 .await?;
3930 let start = location
3931 .start
3932 .and_then(deserialize_anchor)
3933 .ok_or_else(|| anyhow!("missing target start"))?;
3934 let end = location
3935 .end
3936 .and_then(deserialize_anchor)
3937 .ok_or_else(|| anyhow!("missing target end"))?;
3938 result
3939 .entry(target_buffer)
3940 .or_insert(Vec::new())
3941 .push(start..end)
3942 }
3943 Ok(result)
3944 })
3945 } else {
3946 Task::ready(Ok(Default::default()))
3947 }
3948 }
3949
3950 fn request_lsp<R: LspCommand>(
3951 &self,
3952 buffer_handle: ModelHandle<Buffer>,
3953 request: R,
3954 cx: &mut ModelContext<Self>,
3955 ) -> Task<Result<R::Response>>
3956 where
3957 <R::LspRequest as lsp::request::Request>::Result: Send,
3958 {
3959 let buffer = buffer_handle.read(cx);
3960 if self.is_local() {
3961 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
3962 if let Some((file, (_, language_server))) =
3963 file.zip(self.language_server_for_buffer(buffer, cx).cloned())
3964 {
3965 let lsp_params = request.to_lsp(&file.abs_path(cx), cx);
3966 return cx.spawn(|this, cx| async move {
3967 if !request.check_capabilities(&language_server.capabilities()) {
3968 return Ok(Default::default());
3969 }
3970
3971 let response = language_server
3972 .request::<R::LspRequest>(lsp_params)
3973 .await
3974 .context("lsp request failed")?;
3975 request
3976 .response_from_lsp(response, this, buffer_handle, cx)
3977 .await
3978 });
3979 }
3980 } else if let Some(project_id) = self.remote_id() {
3981 let rpc = self.client.clone();
3982 let message = request.to_proto(project_id, buffer);
3983 return cx.spawn(|this, cx| async move {
3984 let response = rpc.request(message).await?;
3985 request
3986 .response_from_proto(response, this, buffer_handle, cx)
3987 .await
3988 });
3989 }
3990 Task::ready(Ok(Default::default()))
3991 }
3992
3993 pub fn find_or_create_local_worktree(
3994 &mut self,
3995 abs_path: impl AsRef<Path>,
3996 visible: bool,
3997 cx: &mut ModelContext<Self>,
3998 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
3999 let abs_path = abs_path.as_ref();
4000 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4001 Task::ready(Ok((tree.clone(), relative_path.into())))
4002 } else {
4003 let worktree = self.create_local_worktree(abs_path, visible, cx);
4004 cx.foreground()
4005 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4006 }
4007 }
4008
4009 pub fn find_local_worktree(
4010 &self,
4011 abs_path: &Path,
4012 cx: &AppContext,
4013 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4014 for tree in self.worktrees(cx) {
4015 if let Some(relative_path) = tree
4016 .read(cx)
4017 .as_local()
4018 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4019 {
4020 return Some((tree.clone(), relative_path.into()));
4021 }
4022 }
4023 None
4024 }
4025
4026 pub fn is_shared(&self) -> bool {
4027 match &self.client_state {
4028 ProjectClientState::Local { is_shared, .. } => *is_shared,
4029 ProjectClientState::Remote { .. } => false,
4030 }
4031 }
4032
4033 fn create_local_worktree(
4034 &mut self,
4035 abs_path: impl AsRef<Path>,
4036 visible: bool,
4037 cx: &mut ModelContext<Self>,
4038 ) -> Task<Result<ModelHandle<Worktree>>> {
4039 let fs = self.fs.clone();
4040 let client = self.client.clone();
4041 let next_entry_id = self.next_entry_id.clone();
4042 let path: Arc<Path> = abs_path.as_ref().into();
4043 let task = self
4044 .loading_local_worktrees
4045 .entry(path.clone())
4046 .or_insert_with(|| {
4047 cx.spawn(|project, mut cx| {
4048 async move {
4049 let worktree = Worktree::local(
4050 client.clone(),
4051 path.clone(),
4052 visible,
4053 fs,
4054 next_entry_id,
4055 &mut cx,
4056 )
4057 .await;
4058 project.update(&mut cx, |project, _| {
4059 project.loading_local_worktrees.remove(&path);
4060 });
4061 let worktree = worktree?;
4062
4063 let project_id = project.update(&mut cx, |project, cx| {
4064 project.add_worktree(&worktree, cx);
4065 project.shared_remote_id()
4066 });
4067
4068 if let Some(project_id) = project_id {
4069 worktree
4070 .update(&mut cx, |worktree, cx| {
4071 worktree.as_local_mut().unwrap().share(project_id, cx)
4072 })
4073 .await
4074 .log_err();
4075 }
4076
4077 Ok(worktree)
4078 }
4079 .map_err(|err| Arc::new(err))
4080 })
4081 .shared()
4082 })
4083 .clone();
4084 cx.foreground().spawn(async move {
4085 match task.await {
4086 Ok(worktree) => Ok(worktree),
4087 Err(err) => Err(anyhow!("{}", err)),
4088 }
4089 })
4090 }
4091
4092 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4093 self.worktrees.retain(|worktree| {
4094 if let Some(worktree) = worktree.upgrade(cx) {
4095 let id = worktree.read(cx).id();
4096 if id == id_to_remove {
4097 cx.emit(Event::WorktreeRemoved(id));
4098 false
4099 } else {
4100 true
4101 }
4102 } else {
4103 false
4104 }
4105 });
4106 self.metadata_changed(true, cx);
4107 cx.notify();
4108 }
4109
4110 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4111 cx.observe(&worktree, |_, _, cx| cx.notify()).detach();
4112 if worktree.read(cx).is_local() {
4113 cx.subscribe(&worktree, |this, worktree, _, cx| {
4114 this.update_local_worktree_buffers(worktree, cx);
4115 })
4116 .detach();
4117 }
4118
4119 let push_strong_handle = {
4120 let worktree = worktree.read(cx);
4121 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4122 };
4123 if push_strong_handle {
4124 self.worktrees
4125 .push(WorktreeHandle::Strong(worktree.clone()));
4126 } else {
4127 self.worktrees
4128 .push(WorktreeHandle::Weak(worktree.downgrade()));
4129 }
4130
4131 self.metadata_changed(true, cx);
4132 cx.observe_release(&worktree, |this, worktree, cx| {
4133 this.remove_worktree(worktree.id(), cx);
4134 cx.notify();
4135 })
4136 .detach();
4137
4138 cx.emit(Event::WorktreeAdded);
4139 cx.notify();
4140 }
4141
4142 fn update_local_worktree_buffers(
4143 &mut self,
4144 worktree_handle: ModelHandle<Worktree>,
4145 cx: &mut ModelContext<Self>,
4146 ) {
4147 let snapshot = worktree_handle.read(cx).snapshot();
4148 let mut buffers_to_delete = Vec::new();
4149 let mut renamed_buffers = Vec::new();
4150 for (buffer_id, buffer) in &self.opened_buffers {
4151 if let Some(buffer) = buffer.upgrade(cx) {
4152 buffer.update(cx, |buffer, cx| {
4153 if let Some(old_file) = File::from_dyn(buffer.file()) {
4154 if old_file.worktree != worktree_handle {
4155 return;
4156 }
4157
4158 let new_file = if let Some(entry) = old_file
4159 .entry_id
4160 .and_then(|entry_id| snapshot.entry_for_id(entry_id))
4161 {
4162 File {
4163 is_local: true,
4164 entry_id: Some(entry.id),
4165 mtime: entry.mtime,
4166 path: entry.path.clone(),
4167 worktree: worktree_handle.clone(),
4168 }
4169 } else if let Some(entry) =
4170 snapshot.entry_for_path(old_file.path().as_ref())
4171 {
4172 File {
4173 is_local: true,
4174 entry_id: Some(entry.id),
4175 mtime: entry.mtime,
4176 path: entry.path.clone(),
4177 worktree: worktree_handle.clone(),
4178 }
4179 } else {
4180 File {
4181 is_local: true,
4182 entry_id: None,
4183 path: old_file.path().clone(),
4184 mtime: old_file.mtime(),
4185 worktree: worktree_handle.clone(),
4186 }
4187 };
4188
4189 let old_path = old_file.abs_path(cx);
4190 if new_file.abs_path(cx) != old_path {
4191 renamed_buffers.push((cx.handle(), old_path));
4192 }
4193
4194 if let Some(project_id) = self.shared_remote_id() {
4195 self.client
4196 .send(proto::UpdateBufferFile {
4197 project_id,
4198 buffer_id: *buffer_id as u64,
4199 file: Some(new_file.to_proto()),
4200 })
4201 .log_err();
4202 }
4203 buffer.file_updated(Arc::new(new_file), cx).detach();
4204 }
4205 });
4206 } else {
4207 buffers_to_delete.push(*buffer_id);
4208 }
4209 }
4210
4211 for buffer_id in buffers_to_delete {
4212 self.opened_buffers.remove(&buffer_id);
4213 }
4214
4215 for (buffer, old_path) in renamed_buffers {
4216 self.unregister_buffer_from_language_server(&buffer, old_path, cx);
4217 self.assign_language_to_buffer(&buffer, cx);
4218 self.register_buffer_with_language_server(&buffer, cx);
4219 }
4220 }
4221
4222 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
4223 let new_active_entry = entry.and_then(|project_path| {
4224 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
4225 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
4226 Some(entry.id)
4227 });
4228 if new_active_entry != self.active_entry {
4229 self.active_entry = new_active_entry;
4230 cx.emit(Event::ActiveEntryChanged(new_active_entry));
4231 }
4232 }
4233
4234 pub fn language_servers_running_disk_based_diagnostics<'a>(
4235 &'a self,
4236 ) -> impl 'a + Iterator<Item = usize> {
4237 self.language_server_statuses
4238 .iter()
4239 .filter_map(|(id, status)| {
4240 if status.has_pending_diagnostic_updates {
4241 Some(*id)
4242 } else {
4243 None
4244 }
4245 })
4246 }
4247
4248 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
4249 let mut summary = DiagnosticSummary::default();
4250 for (_, path_summary) in self.diagnostic_summaries(cx) {
4251 summary.error_count += path_summary.error_count;
4252 summary.warning_count += path_summary.warning_count;
4253 }
4254 summary
4255 }
4256
4257 pub fn diagnostic_summaries<'a>(
4258 &'a self,
4259 cx: &'a AppContext,
4260 ) -> impl Iterator<Item = (ProjectPath, DiagnosticSummary)> + 'a {
4261 self.worktrees(cx).flat_map(move |worktree| {
4262 let worktree = worktree.read(cx);
4263 let worktree_id = worktree.id();
4264 worktree
4265 .diagnostic_summaries()
4266 .map(move |(path, summary)| (ProjectPath { worktree_id, path }, summary))
4267 })
4268 }
4269
4270 pub fn disk_based_diagnostics_started(
4271 &mut self,
4272 language_server_id: usize,
4273 cx: &mut ModelContext<Self>,
4274 ) {
4275 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
4276 }
4277
4278 pub fn disk_based_diagnostics_finished(
4279 &mut self,
4280 language_server_id: usize,
4281 cx: &mut ModelContext<Self>,
4282 ) {
4283 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
4284 }
4285
4286 pub fn active_entry(&self) -> Option<ProjectEntryId> {
4287 self.active_entry
4288 }
4289
4290 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<ProjectEntryId> {
4291 self.worktree_for_id(path.worktree_id, cx)?
4292 .read(cx)
4293 .entry_for_path(&path.path)
4294 .map(|entry| entry.id)
4295 }
4296
4297 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
4298 let worktree = self.worktree_for_entry(entry_id, cx)?;
4299 let worktree = worktree.read(cx);
4300 let worktree_id = worktree.id();
4301 let path = worktree.entry_for_id(entry_id)?.path.clone();
4302 Some(ProjectPath { worktree_id, path })
4303 }
4304
4305 // RPC message handlers
4306
4307 async fn handle_request_join_project(
4308 this: ModelHandle<Self>,
4309 message: TypedEnvelope<proto::RequestJoinProject>,
4310 _: Arc<Client>,
4311 mut cx: AsyncAppContext,
4312 ) -> Result<()> {
4313 let user_id = message.payload.requester_id;
4314 if this.read_with(&cx, |project, _| {
4315 project.collaborators.values().any(|c| c.user.id == user_id)
4316 }) {
4317 this.update(&mut cx, |this, cx| {
4318 this.respond_to_join_request(user_id, true, cx)
4319 });
4320 } else {
4321 let user_store = this.read_with(&cx, |this, _| this.user_store.clone());
4322 let user = user_store
4323 .update(&mut cx, |store, cx| store.fetch_user(user_id, cx))
4324 .await?;
4325 this.update(&mut cx, |_, cx| cx.emit(Event::ContactRequestedJoin(user)));
4326 }
4327 Ok(())
4328 }
4329
4330 async fn handle_unregister_project(
4331 this: ModelHandle<Self>,
4332 _: TypedEnvelope<proto::UnregisterProject>,
4333 _: Arc<Client>,
4334 mut cx: AsyncAppContext,
4335 ) -> Result<()> {
4336 this.update(&mut cx, |this, cx| this.removed_from_project(cx));
4337 Ok(())
4338 }
4339
4340 async fn handle_project_unshared(
4341 this: ModelHandle<Self>,
4342 _: TypedEnvelope<proto::ProjectUnshared>,
4343 _: Arc<Client>,
4344 mut cx: AsyncAppContext,
4345 ) -> Result<()> {
4346 this.update(&mut cx, |this, cx| this.unshared(cx));
4347 Ok(())
4348 }
4349
4350 async fn handle_add_collaborator(
4351 this: ModelHandle<Self>,
4352 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
4353 _: Arc<Client>,
4354 mut cx: AsyncAppContext,
4355 ) -> Result<()> {
4356 let user_store = this.read_with(&cx, |this, _| this.user_store.clone());
4357 let collaborator = envelope
4358 .payload
4359 .collaborator
4360 .take()
4361 .ok_or_else(|| anyhow!("empty collaborator"))?;
4362
4363 let collaborator = Collaborator::from_proto(collaborator, &user_store, &mut cx).await?;
4364 this.update(&mut cx, |this, cx| {
4365 this.collaborators
4366 .insert(collaborator.peer_id, collaborator);
4367 cx.notify();
4368 });
4369
4370 Ok(())
4371 }
4372
4373 async fn handle_remove_collaborator(
4374 this: ModelHandle<Self>,
4375 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
4376 _: Arc<Client>,
4377 mut cx: AsyncAppContext,
4378 ) -> Result<()> {
4379 this.update(&mut cx, |this, cx| {
4380 let peer_id = PeerId(envelope.payload.peer_id);
4381 let replica_id = this
4382 .collaborators
4383 .remove(&peer_id)
4384 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
4385 .replica_id;
4386 for (_, buffer) in &this.opened_buffers {
4387 if let Some(buffer) = buffer.upgrade(cx) {
4388 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
4389 }
4390 }
4391
4392 cx.emit(Event::CollaboratorLeft(peer_id));
4393 cx.notify();
4394 Ok(())
4395 })
4396 }
4397
4398 async fn handle_join_project_request_cancelled(
4399 this: ModelHandle<Self>,
4400 envelope: TypedEnvelope<proto::JoinProjectRequestCancelled>,
4401 _: Arc<Client>,
4402 mut cx: AsyncAppContext,
4403 ) -> Result<()> {
4404 let user = this
4405 .update(&mut cx, |this, cx| {
4406 this.user_store.update(cx, |user_store, cx| {
4407 user_store.fetch_user(envelope.payload.requester_id, cx)
4408 })
4409 })
4410 .await?;
4411
4412 this.update(&mut cx, |_, cx| {
4413 cx.emit(Event::ContactCancelledJoinRequest(user));
4414 });
4415
4416 Ok(())
4417 }
4418
4419 async fn handle_update_project(
4420 this: ModelHandle<Self>,
4421 envelope: TypedEnvelope<proto::UpdateProject>,
4422 client: Arc<Client>,
4423 mut cx: AsyncAppContext,
4424 ) -> Result<()> {
4425 this.update(&mut cx, |this, cx| {
4426 let replica_id = this.replica_id();
4427 let remote_id = this.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
4428
4429 let mut old_worktrees_by_id = this
4430 .worktrees
4431 .drain(..)
4432 .filter_map(|worktree| {
4433 let worktree = worktree.upgrade(cx)?;
4434 Some((worktree.read(cx).id(), worktree))
4435 })
4436 .collect::<HashMap<_, _>>();
4437
4438 for worktree in envelope.payload.worktrees {
4439 if let Some(old_worktree) =
4440 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
4441 {
4442 this.worktrees.push(WorktreeHandle::Strong(old_worktree));
4443 } else {
4444 let worktree = proto::Worktree {
4445 id: worktree.id,
4446 root_name: worktree.root_name,
4447 entries: Default::default(),
4448 diagnostic_summaries: Default::default(),
4449 visible: worktree.visible,
4450 scan_id: 0,
4451 };
4452 let (worktree, load_task) =
4453 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx);
4454 this.add_worktree(&worktree, cx);
4455 load_task.detach();
4456 }
4457 }
4458
4459 this.metadata_changed(true, cx);
4460 for (id, _) in old_worktrees_by_id {
4461 cx.emit(Event::WorktreeRemoved(id));
4462 }
4463
4464 Ok(())
4465 })
4466 }
4467
4468 async fn handle_update_worktree(
4469 this: ModelHandle<Self>,
4470 envelope: TypedEnvelope<proto::UpdateWorktree>,
4471 _: Arc<Client>,
4472 mut cx: AsyncAppContext,
4473 ) -> Result<()> {
4474 this.update(&mut cx, |this, cx| {
4475 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4476 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4477 worktree.update(cx, |worktree, _| {
4478 let worktree = worktree.as_remote_mut().unwrap();
4479 worktree.update_from_remote(envelope)
4480 })?;
4481 }
4482 Ok(())
4483 })
4484 }
4485
4486 async fn handle_create_project_entry(
4487 this: ModelHandle<Self>,
4488 envelope: TypedEnvelope<proto::CreateProjectEntry>,
4489 _: Arc<Client>,
4490 mut cx: AsyncAppContext,
4491 ) -> Result<proto::ProjectEntryResponse> {
4492 let worktree = this.update(&mut cx, |this, cx| {
4493 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4494 this.worktree_for_id(worktree_id, cx)
4495 .ok_or_else(|| anyhow!("worktree not found"))
4496 })?;
4497 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4498 let entry = worktree
4499 .update(&mut cx, |worktree, cx| {
4500 let worktree = worktree.as_local_mut().unwrap();
4501 let path = PathBuf::from(OsString::from_vec(envelope.payload.path));
4502 worktree.create_entry(path, envelope.payload.is_directory, cx)
4503 })
4504 .await?;
4505 Ok(proto::ProjectEntryResponse {
4506 entry: Some((&entry).into()),
4507 worktree_scan_id: worktree_scan_id as u64,
4508 })
4509 }
4510
4511 async fn handle_rename_project_entry(
4512 this: ModelHandle<Self>,
4513 envelope: TypedEnvelope<proto::RenameProjectEntry>,
4514 _: Arc<Client>,
4515 mut cx: AsyncAppContext,
4516 ) -> Result<proto::ProjectEntryResponse> {
4517 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4518 let worktree = this.read_with(&cx, |this, cx| {
4519 this.worktree_for_entry(entry_id, cx)
4520 .ok_or_else(|| anyhow!("worktree not found"))
4521 })?;
4522 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4523 let entry = worktree
4524 .update(&mut cx, |worktree, cx| {
4525 let new_path = PathBuf::from(OsString::from_vec(envelope.payload.new_path));
4526 worktree
4527 .as_local_mut()
4528 .unwrap()
4529 .rename_entry(entry_id, new_path, cx)
4530 .ok_or_else(|| anyhow!("invalid entry"))
4531 })?
4532 .await?;
4533 Ok(proto::ProjectEntryResponse {
4534 entry: Some((&entry).into()),
4535 worktree_scan_id: worktree_scan_id as u64,
4536 })
4537 }
4538
4539 async fn handle_copy_project_entry(
4540 this: ModelHandle<Self>,
4541 envelope: TypedEnvelope<proto::CopyProjectEntry>,
4542 _: Arc<Client>,
4543 mut cx: AsyncAppContext,
4544 ) -> Result<proto::ProjectEntryResponse> {
4545 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4546 let worktree = this.read_with(&cx, |this, cx| {
4547 this.worktree_for_entry(entry_id, cx)
4548 .ok_or_else(|| anyhow!("worktree not found"))
4549 })?;
4550 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4551 let entry = worktree
4552 .update(&mut cx, |worktree, cx| {
4553 let new_path = PathBuf::from(OsString::from_vec(envelope.payload.new_path));
4554 worktree
4555 .as_local_mut()
4556 .unwrap()
4557 .copy_entry(entry_id, new_path, cx)
4558 .ok_or_else(|| anyhow!("invalid entry"))
4559 })?
4560 .await?;
4561 Ok(proto::ProjectEntryResponse {
4562 entry: Some((&entry).into()),
4563 worktree_scan_id: worktree_scan_id as u64,
4564 })
4565 }
4566
4567 async fn handle_delete_project_entry(
4568 this: ModelHandle<Self>,
4569 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
4570 _: Arc<Client>,
4571 mut cx: AsyncAppContext,
4572 ) -> Result<proto::ProjectEntryResponse> {
4573 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4574 let worktree = this.read_with(&cx, |this, cx| {
4575 this.worktree_for_entry(entry_id, cx)
4576 .ok_or_else(|| anyhow!("worktree not found"))
4577 })?;
4578 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4579 worktree
4580 .update(&mut cx, |worktree, cx| {
4581 worktree
4582 .as_local_mut()
4583 .unwrap()
4584 .delete_entry(entry_id, cx)
4585 .ok_or_else(|| anyhow!("invalid entry"))
4586 })?
4587 .await?;
4588 Ok(proto::ProjectEntryResponse {
4589 entry: None,
4590 worktree_scan_id: worktree_scan_id as u64,
4591 })
4592 }
4593
4594 async fn handle_update_diagnostic_summary(
4595 this: ModelHandle<Self>,
4596 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
4597 _: Arc<Client>,
4598 mut cx: AsyncAppContext,
4599 ) -> Result<()> {
4600 this.update(&mut cx, |this, cx| {
4601 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4602 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4603 if let Some(summary) = envelope.payload.summary {
4604 let project_path = ProjectPath {
4605 worktree_id,
4606 path: Path::new(&summary.path).into(),
4607 };
4608 worktree.update(cx, |worktree, _| {
4609 worktree
4610 .as_remote_mut()
4611 .unwrap()
4612 .update_diagnostic_summary(project_path.path.clone(), &summary);
4613 });
4614 cx.emit(Event::DiagnosticsUpdated {
4615 language_server_id: summary.language_server_id as usize,
4616 path: project_path,
4617 });
4618 }
4619 }
4620 Ok(())
4621 })
4622 }
4623
4624 async fn handle_start_language_server(
4625 this: ModelHandle<Self>,
4626 envelope: TypedEnvelope<proto::StartLanguageServer>,
4627 _: Arc<Client>,
4628 mut cx: AsyncAppContext,
4629 ) -> Result<()> {
4630 let server = envelope
4631 .payload
4632 .server
4633 .ok_or_else(|| anyhow!("invalid server"))?;
4634 this.update(&mut cx, |this, cx| {
4635 this.language_server_statuses.insert(
4636 server.id as usize,
4637 LanguageServerStatus {
4638 name: server.name,
4639 pending_work: Default::default(),
4640 has_pending_diagnostic_updates: false,
4641 progress_tokens: Default::default(),
4642 },
4643 );
4644 cx.notify();
4645 });
4646 Ok(())
4647 }
4648
4649 async fn handle_update_language_server(
4650 this: ModelHandle<Self>,
4651 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
4652 _: Arc<Client>,
4653 mut cx: AsyncAppContext,
4654 ) -> Result<()> {
4655 let language_server_id = envelope.payload.language_server_id as usize;
4656 match envelope
4657 .payload
4658 .variant
4659 .ok_or_else(|| anyhow!("invalid variant"))?
4660 {
4661 proto::update_language_server::Variant::WorkStart(payload) => {
4662 this.update(&mut cx, |this, cx| {
4663 this.on_lsp_work_start(
4664 language_server_id,
4665 payload.token,
4666 LanguageServerProgress {
4667 message: payload.message,
4668 percentage: payload.percentage.map(|p| p as usize),
4669 last_update_at: Instant::now(),
4670 },
4671 cx,
4672 );
4673 })
4674 }
4675 proto::update_language_server::Variant::WorkProgress(payload) => {
4676 this.update(&mut cx, |this, cx| {
4677 this.on_lsp_work_progress(
4678 language_server_id,
4679 payload.token,
4680 LanguageServerProgress {
4681 message: payload.message,
4682 percentage: payload.percentage.map(|p| p as usize),
4683 last_update_at: Instant::now(),
4684 },
4685 cx,
4686 );
4687 })
4688 }
4689 proto::update_language_server::Variant::WorkEnd(payload) => {
4690 this.update(&mut cx, |this, cx| {
4691 this.on_lsp_work_end(language_server_id, payload.token, cx);
4692 })
4693 }
4694 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
4695 this.update(&mut cx, |this, cx| {
4696 this.disk_based_diagnostics_started(language_server_id, cx);
4697 })
4698 }
4699 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
4700 this.update(&mut cx, |this, cx| {
4701 this.disk_based_diagnostics_finished(language_server_id, cx)
4702 });
4703 }
4704 }
4705
4706 Ok(())
4707 }
4708
4709 async fn handle_update_buffer(
4710 this: ModelHandle<Self>,
4711 envelope: TypedEnvelope<proto::UpdateBuffer>,
4712 _: Arc<Client>,
4713 mut cx: AsyncAppContext,
4714 ) -> Result<()> {
4715 this.update(&mut cx, |this, cx| {
4716 let payload = envelope.payload.clone();
4717 let buffer_id = payload.buffer_id;
4718 let ops = payload
4719 .operations
4720 .into_iter()
4721 .map(|op| language::proto::deserialize_operation(op))
4722 .collect::<Result<Vec<_>, _>>()?;
4723 let is_remote = this.is_remote();
4724 match this.opened_buffers.entry(buffer_id) {
4725 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
4726 OpenBuffer::Strong(buffer) => {
4727 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
4728 }
4729 OpenBuffer::Loading(operations) => operations.extend_from_slice(&ops),
4730 OpenBuffer::Weak(_) => {}
4731 },
4732 hash_map::Entry::Vacant(e) => {
4733 assert!(
4734 is_remote,
4735 "received buffer update from {:?}",
4736 envelope.original_sender_id
4737 );
4738 e.insert(OpenBuffer::Loading(ops));
4739 }
4740 }
4741 Ok(())
4742 })
4743 }
4744
4745 async fn handle_update_buffer_file(
4746 this: ModelHandle<Self>,
4747 envelope: TypedEnvelope<proto::UpdateBufferFile>,
4748 _: Arc<Client>,
4749 mut cx: AsyncAppContext,
4750 ) -> Result<()> {
4751 this.update(&mut cx, |this, cx| {
4752 let payload = envelope.payload.clone();
4753 let buffer_id = payload.buffer_id;
4754 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
4755 let worktree = this
4756 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
4757 .ok_or_else(|| anyhow!("no such worktree"))?;
4758 let file = File::from_proto(file, worktree.clone(), cx)?;
4759 let buffer = this
4760 .opened_buffers
4761 .get_mut(&buffer_id)
4762 .and_then(|b| b.upgrade(cx))
4763 .ok_or_else(|| anyhow!("no such buffer"))?;
4764 buffer.update(cx, |buffer, cx| {
4765 buffer.file_updated(Arc::new(file), cx).detach();
4766 });
4767 Ok(())
4768 })
4769 }
4770
4771 async fn handle_save_buffer(
4772 this: ModelHandle<Self>,
4773 envelope: TypedEnvelope<proto::SaveBuffer>,
4774 _: Arc<Client>,
4775 mut cx: AsyncAppContext,
4776 ) -> Result<proto::BufferSaved> {
4777 let buffer_id = envelope.payload.buffer_id;
4778 let requested_version = deserialize_version(envelope.payload.version);
4779
4780 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
4781 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
4782 let buffer = this
4783 .opened_buffers
4784 .get(&buffer_id)
4785 .and_then(|buffer| buffer.upgrade(cx))
4786 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
4787 Ok::<_, anyhow::Error>((project_id, buffer))
4788 })?;
4789 buffer
4790 .update(&mut cx, |buffer, _| {
4791 buffer.wait_for_version(requested_version)
4792 })
4793 .await;
4794
4795 let (saved_version, fingerprint, mtime) =
4796 buffer.update(&mut cx, |buffer, cx| buffer.save(cx)).await?;
4797 Ok(proto::BufferSaved {
4798 project_id,
4799 buffer_id,
4800 version: serialize_version(&saved_version),
4801 mtime: Some(mtime.into()),
4802 fingerprint,
4803 })
4804 }
4805
4806 async fn handle_reload_buffers(
4807 this: ModelHandle<Self>,
4808 envelope: TypedEnvelope<proto::ReloadBuffers>,
4809 _: Arc<Client>,
4810 mut cx: AsyncAppContext,
4811 ) -> Result<proto::ReloadBuffersResponse> {
4812 let sender_id = envelope.original_sender_id()?;
4813 let reload = this.update(&mut cx, |this, cx| {
4814 let mut buffers = HashSet::default();
4815 for buffer_id in &envelope.payload.buffer_ids {
4816 buffers.insert(
4817 this.opened_buffers
4818 .get(buffer_id)
4819 .and_then(|buffer| buffer.upgrade(cx))
4820 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
4821 );
4822 }
4823 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
4824 })?;
4825
4826 let project_transaction = reload.await?;
4827 let project_transaction = this.update(&mut cx, |this, cx| {
4828 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
4829 });
4830 Ok(proto::ReloadBuffersResponse {
4831 transaction: Some(project_transaction),
4832 })
4833 }
4834
4835 async fn handle_format_buffers(
4836 this: ModelHandle<Self>,
4837 envelope: TypedEnvelope<proto::FormatBuffers>,
4838 _: Arc<Client>,
4839 mut cx: AsyncAppContext,
4840 ) -> Result<proto::FormatBuffersResponse> {
4841 let sender_id = envelope.original_sender_id()?;
4842 let format = this.update(&mut cx, |this, cx| {
4843 let mut buffers = HashSet::default();
4844 for buffer_id in &envelope.payload.buffer_ids {
4845 buffers.insert(
4846 this.opened_buffers
4847 .get(buffer_id)
4848 .and_then(|buffer| buffer.upgrade(cx))
4849 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
4850 );
4851 }
4852 Ok::<_, anyhow::Error>(this.format(buffers, false, cx))
4853 })?;
4854
4855 let project_transaction = format.await?;
4856 let project_transaction = this.update(&mut cx, |this, cx| {
4857 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
4858 });
4859 Ok(proto::FormatBuffersResponse {
4860 transaction: Some(project_transaction),
4861 })
4862 }
4863
4864 async fn handle_get_completions(
4865 this: ModelHandle<Self>,
4866 envelope: TypedEnvelope<proto::GetCompletions>,
4867 _: Arc<Client>,
4868 mut cx: AsyncAppContext,
4869 ) -> Result<proto::GetCompletionsResponse> {
4870 let position = envelope
4871 .payload
4872 .position
4873 .and_then(language::proto::deserialize_anchor)
4874 .ok_or_else(|| anyhow!("invalid position"))?;
4875 let version = deserialize_version(envelope.payload.version);
4876 let buffer = this.read_with(&cx, |this, cx| {
4877 this.opened_buffers
4878 .get(&envelope.payload.buffer_id)
4879 .and_then(|buffer| buffer.upgrade(cx))
4880 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
4881 })?;
4882 buffer
4883 .update(&mut cx, |buffer, _| buffer.wait_for_version(version))
4884 .await;
4885 let version = buffer.read_with(&cx, |buffer, _| buffer.version());
4886 let completions = this
4887 .update(&mut cx, |this, cx| this.completions(&buffer, position, cx))
4888 .await?;
4889
4890 Ok(proto::GetCompletionsResponse {
4891 completions: completions
4892 .iter()
4893 .map(language::proto::serialize_completion)
4894 .collect(),
4895 version: serialize_version(&version),
4896 })
4897 }
4898
4899 async fn handle_apply_additional_edits_for_completion(
4900 this: ModelHandle<Self>,
4901 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
4902 _: Arc<Client>,
4903 mut cx: AsyncAppContext,
4904 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
4905 let apply_additional_edits = this.update(&mut cx, |this, cx| {
4906 let buffer = this
4907 .opened_buffers
4908 .get(&envelope.payload.buffer_id)
4909 .and_then(|buffer| buffer.upgrade(cx))
4910 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
4911 let language = buffer.read(cx).language();
4912 let completion = language::proto::deserialize_completion(
4913 envelope
4914 .payload
4915 .completion
4916 .ok_or_else(|| anyhow!("invalid completion"))?,
4917 language,
4918 )?;
4919 Ok::<_, anyhow::Error>(
4920 this.apply_additional_edits_for_completion(buffer, completion, false, cx),
4921 )
4922 })?;
4923
4924 Ok(proto::ApplyCompletionAdditionalEditsResponse {
4925 transaction: apply_additional_edits
4926 .await?
4927 .as_ref()
4928 .map(language::proto::serialize_transaction),
4929 })
4930 }
4931
4932 async fn handle_get_code_actions(
4933 this: ModelHandle<Self>,
4934 envelope: TypedEnvelope<proto::GetCodeActions>,
4935 _: Arc<Client>,
4936 mut cx: AsyncAppContext,
4937 ) -> Result<proto::GetCodeActionsResponse> {
4938 let start = envelope
4939 .payload
4940 .start
4941 .and_then(language::proto::deserialize_anchor)
4942 .ok_or_else(|| anyhow!("invalid start"))?;
4943 let end = envelope
4944 .payload
4945 .end
4946 .and_then(language::proto::deserialize_anchor)
4947 .ok_or_else(|| anyhow!("invalid end"))?;
4948 let buffer = this.update(&mut cx, |this, cx| {
4949 this.opened_buffers
4950 .get(&envelope.payload.buffer_id)
4951 .and_then(|buffer| buffer.upgrade(cx))
4952 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
4953 })?;
4954 buffer
4955 .update(&mut cx, |buffer, _| {
4956 buffer.wait_for_version(deserialize_version(envelope.payload.version))
4957 })
4958 .await;
4959
4960 let version = buffer.read_with(&cx, |buffer, _| buffer.version());
4961 let code_actions = this.update(&mut cx, |this, cx| {
4962 Ok::<_, anyhow::Error>(this.code_actions(&buffer, start..end, cx))
4963 })?;
4964
4965 Ok(proto::GetCodeActionsResponse {
4966 actions: code_actions
4967 .await?
4968 .iter()
4969 .map(language::proto::serialize_code_action)
4970 .collect(),
4971 version: serialize_version(&version),
4972 })
4973 }
4974
4975 async fn handle_apply_code_action(
4976 this: ModelHandle<Self>,
4977 envelope: TypedEnvelope<proto::ApplyCodeAction>,
4978 _: Arc<Client>,
4979 mut cx: AsyncAppContext,
4980 ) -> Result<proto::ApplyCodeActionResponse> {
4981 let sender_id = envelope.original_sender_id()?;
4982 let action = language::proto::deserialize_code_action(
4983 envelope
4984 .payload
4985 .action
4986 .ok_or_else(|| anyhow!("invalid action"))?,
4987 )?;
4988 let apply_code_action = this.update(&mut cx, |this, cx| {
4989 let buffer = this
4990 .opened_buffers
4991 .get(&envelope.payload.buffer_id)
4992 .and_then(|buffer| buffer.upgrade(cx))
4993 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
4994 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
4995 })?;
4996
4997 let project_transaction = apply_code_action.await?;
4998 let project_transaction = this.update(&mut cx, |this, cx| {
4999 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5000 });
5001 Ok(proto::ApplyCodeActionResponse {
5002 transaction: Some(project_transaction),
5003 })
5004 }
5005
5006 async fn handle_lsp_command<T: LspCommand>(
5007 this: ModelHandle<Self>,
5008 envelope: TypedEnvelope<T::ProtoRequest>,
5009 _: Arc<Client>,
5010 mut cx: AsyncAppContext,
5011 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
5012 where
5013 <T::LspRequest as lsp::request::Request>::Result: Send,
5014 {
5015 let sender_id = envelope.original_sender_id()?;
5016 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
5017 let buffer_handle = this.read_with(&cx, |this, _| {
5018 this.opened_buffers
5019 .get(&buffer_id)
5020 .and_then(|buffer| buffer.upgrade(&cx))
5021 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
5022 })?;
5023 let request = T::from_proto(
5024 envelope.payload,
5025 this.clone(),
5026 buffer_handle.clone(),
5027 cx.clone(),
5028 )
5029 .await?;
5030 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
5031 let response = this
5032 .update(&mut cx, |this, cx| {
5033 this.request_lsp(buffer_handle, request, cx)
5034 })
5035 .await?;
5036 this.update(&mut cx, |this, cx| {
5037 Ok(T::response_to_proto(
5038 response,
5039 this,
5040 sender_id,
5041 &buffer_version,
5042 cx,
5043 ))
5044 })
5045 }
5046
5047 async fn handle_get_project_symbols(
5048 this: ModelHandle<Self>,
5049 envelope: TypedEnvelope<proto::GetProjectSymbols>,
5050 _: Arc<Client>,
5051 mut cx: AsyncAppContext,
5052 ) -> Result<proto::GetProjectSymbolsResponse> {
5053 let symbols = this
5054 .update(&mut cx, |this, cx| {
5055 this.symbols(&envelope.payload.query, cx)
5056 })
5057 .await?;
5058
5059 Ok(proto::GetProjectSymbolsResponse {
5060 symbols: symbols.iter().map(serialize_symbol).collect(),
5061 })
5062 }
5063
5064 async fn handle_search_project(
5065 this: ModelHandle<Self>,
5066 envelope: TypedEnvelope<proto::SearchProject>,
5067 _: Arc<Client>,
5068 mut cx: AsyncAppContext,
5069 ) -> Result<proto::SearchProjectResponse> {
5070 let peer_id = envelope.original_sender_id()?;
5071 let query = SearchQuery::from_proto(envelope.payload)?;
5072 let result = this
5073 .update(&mut cx, |this, cx| this.search(query, cx))
5074 .await?;
5075
5076 this.update(&mut cx, |this, cx| {
5077 let mut locations = Vec::new();
5078 for (buffer, ranges) in result {
5079 for range in ranges {
5080 let start = serialize_anchor(&range.start);
5081 let end = serialize_anchor(&range.end);
5082 let buffer = this.serialize_buffer_for_peer(&buffer, peer_id, cx);
5083 locations.push(proto::Location {
5084 buffer: Some(buffer),
5085 start: Some(start),
5086 end: Some(end),
5087 });
5088 }
5089 }
5090 Ok(proto::SearchProjectResponse { locations })
5091 })
5092 }
5093
5094 async fn handle_open_buffer_for_symbol(
5095 this: ModelHandle<Self>,
5096 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
5097 _: Arc<Client>,
5098 mut cx: AsyncAppContext,
5099 ) -> Result<proto::OpenBufferForSymbolResponse> {
5100 let peer_id = envelope.original_sender_id()?;
5101 let symbol = envelope
5102 .payload
5103 .symbol
5104 .ok_or_else(|| anyhow!("invalid symbol"))?;
5105 let symbol = this.read_with(&cx, |this, _| {
5106 let symbol = this.deserialize_symbol(symbol)?;
5107 let signature = this.symbol_signature(symbol.worktree_id, &symbol.path);
5108 if signature == symbol.signature {
5109 Ok(symbol)
5110 } else {
5111 Err(anyhow!("invalid symbol signature"))
5112 }
5113 })?;
5114 let buffer = this
5115 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
5116 .await?;
5117
5118 Ok(proto::OpenBufferForSymbolResponse {
5119 buffer: Some(this.update(&mut cx, |this, cx| {
5120 this.serialize_buffer_for_peer(&buffer, peer_id, cx)
5121 })),
5122 })
5123 }
5124
5125 fn symbol_signature(&self, worktree_id: WorktreeId, path: &Path) -> [u8; 32] {
5126 let mut hasher = Sha256::new();
5127 hasher.update(worktree_id.to_proto().to_be_bytes());
5128 hasher.update(path.to_string_lossy().as_bytes());
5129 hasher.update(self.nonce.to_be_bytes());
5130 hasher.finalize().as_slice().try_into().unwrap()
5131 }
5132
5133 async fn handle_open_buffer_by_id(
5134 this: ModelHandle<Self>,
5135 envelope: TypedEnvelope<proto::OpenBufferById>,
5136 _: Arc<Client>,
5137 mut cx: AsyncAppContext,
5138 ) -> Result<proto::OpenBufferResponse> {
5139 let peer_id = envelope.original_sender_id()?;
5140 let buffer = this
5141 .update(&mut cx, |this, cx| {
5142 this.open_buffer_by_id(envelope.payload.id, cx)
5143 })
5144 .await?;
5145 this.update(&mut cx, |this, cx| {
5146 Ok(proto::OpenBufferResponse {
5147 buffer: Some(this.serialize_buffer_for_peer(&buffer, peer_id, cx)),
5148 })
5149 })
5150 }
5151
5152 async fn handle_open_buffer_by_path(
5153 this: ModelHandle<Self>,
5154 envelope: TypedEnvelope<proto::OpenBufferByPath>,
5155 _: Arc<Client>,
5156 mut cx: AsyncAppContext,
5157 ) -> Result<proto::OpenBufferResponse> {
5158 let peer_id = envelope.original_sender_id()?;
5159 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5160 let open_buffer = this.update(&mut cx, |this, cx| {
5161 this.open_buffer(
5162 ProjectPath {
5163 worktree_id,
5164 path: PathBuf::from(envelope.payload.path).into(),
5165 },
5166 cx,
5167 )
5168 });
5169
5170 let buffer = open_buffer.await?;
5171 this.update(&mut cx, |this, cx| {
5172 Ok(proto::OpenBufferResponse {
5173 buffer: Some(this.serialize_buffer_for_peer(&buffer, peer_id, cx)),
5174 })
5175 })
5176 }
5177
5178 fn serialize_project_transaction_for_peer(
5179 &mut self,
5180 project_transaction: ProjectTransaction,
5181 peer_id: PeerId,
5182 cx: &AppContext,
5183 ) -> proto::ProjectTransaction {
5184 let mut serialized_transaction = proto::ProjectTransaction {
5185 buffers: Default::default(),
5186 transactions: Default::default(),
5187 };
5188 for (buffer, transaction) in project_transaction.0 {
5189 serialized_transaction
5190 .buffers
5191 .push(self.serialize_buffer_for_peer(&buffer, peer_id, cx));
5192 serialized_transaction
5193 .transactions
5194 .push(language::proto::serialize_transaction(&transaction));
5195 }
5196 serialized_transaction
5197 }
5198
5199 fn deserialize_project_transaction(
5200 &mut self,
5201 message: proto::ProjectTransaction,
5202 push_to_history: bool,
5203 cx: &mut ModelContext<Self>,
5204 ) -> Task<Result<ProjectTransaction>> {
5205 cx.spawn(|this, mut cx| async move {
5206 let mut project_transaction = ProjectTransaction::default();
5207 for (buffer, transaction) in message.buffers.into_iter().zip(message.transactions) {
5208 let buffer = this
5209 .update(&mut cx, |this, cx| this.deserialize_buffer(buffer, cx))
5210 .await?;
5211 let transaction = language::proto::deserialize_transaction(transaction)?;
5212 project_transaction.0.insert(buffer, transaction);
5213 }
5214
5215 for (buffer, transaction) in &project_transaction.0 {
5216 buffer
5217 .update(&mut cx, |buffer, _| {
5218 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
5219 })
5220 .await;
5221
5222 if push_to_history {
5223 buffer.update(&mut cx, |buffer, _| {
5224 buffer.push_transaction(transaction.clone(), Instant::now());
5225 });
5226 }
5227 }
5228
5229 Ok(project_transaction)
5230 })
5231 }
5232
5233 fn serialize_buffer_for_peer(
5234 &mut self,
5235 buffer: &ModelHandle<Buffer>,
5236 peer_id: PeerId,
5237 cx: &AppContext,
5238 ) -> proto::Buffer {
5239 let buffer_id = buffer.read(cx).remote_id();
5240 let shared_buffers = self.shared_buffers.entry(peer_id).or_default();
5241 if shared_buffers.insert(buffer_id) {
5242 proto::Buffer {
5243 variant: Some(proto::buffer::Variant::State(buffer.read(cx).to_proto())),
5244 }
5245 } else {
5246 proto::Buffer {
5247 variant: Some(proto::buffer::Variant::Id(buffer_id)),
5248 }
5249 }
5250 }
5251
5252 fn deserialize_buffer(
5253 &mut self,
5254 buffer: proto::Buffer,
5255 cx: &mut ModelContext<Self>,
5256 ) -> Task<Result<ModelHandle<Buffer>>> {
5257 let replica_id = self.replica_id();
5258
5259 let opened_buffer_tx = self.opened_buffer.0.clone();
5260 let mut opened_buffer_rx = self.opened_buffer.1.clone();
5261 cx.spawn(|this, mut cx| async move {
5262 match buffer.variant.ok_or_else(|| anyhow!("missing buffer"))? {
5263 proto::buffer::Variant::Id(id) => {
5264 let buffer = loop {
5265 let buffer = this.read_with(&cx, |this, cx| {
5266 this.opened_buffers
5267 .get(&id)
5268 .and_then(|buffer| buffer.upgrade(cx))
5269 });
5270 if let Some(buffer) = buffer {
5271 break buffer;
5272 }
5273 opened_buffer_rx
5274 .next()
5275 .await
5276 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
5277 };
5278 Ok(buffer)
5279 }
5280 proto::buffer::Variant::State(mut buffer) => {
5281 let mut buffer_worktree = None;
5282 let mut buffer_file = None;
5283 if let Some(file) = buffer.file.take() {
5284 this.read_with(&cx, |this, cx| {
5285 let worktree_id = WorktreeId::from_proto(file.worktree_id);
5286 let worktree =
5287 this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
5288 anyhow!("no worktree found for id {}", file.worktree_id)
5289 })?;
5290 buffer_file =
5291 Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
5292 as Arc<dyn language::File>);
5293 buffer_worktree = Some(worktree);
5294 Ok::<_, anyhow::Error>(())
5295 })?;
5296 }
5297
5298 let buffer = cx.add_model(|cx| {
5299 Buffer::from_proto(replica_id, buffer, buffer_file, cx).unwrap()
5300 });
5301
5302 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
5303
5304 *opened_buffer_tx.borrow_mut().borrow_mut() = ();
5305 Ok(buffer)
5306 }
5307 }
5308 })
5309 }
5310
5311 fn deserialize_symbol(&self, serialized_symbol: proto::Symbol) -> Result<Symbol> {
5312 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
5313 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
5314 let start = serialized_symbol
5315 .start
5316 .ok_or_else(|| anyhow!("invalid start"))?;
5317 let end = serialized_symbol
5318 .end
5319 .ok_or_else(|| anyhow!("invalid end"))?;
5320 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
5321 let path = PathBuf::from(serialized_symbol.path);
5322 let language = self.languages.select_language(&path);
5323 Ok(Symbol {
5324 source_worktree_id,
5325 worktree_id,
5326 language_server_name: LanguageServerName(serialized_symbol.language_server_name.into()),
5327 label: language
5328 .and_then(|language| language.label_for_symbol(&serialized_symbol.name, kind))
5329 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None)),
5330 name: serialized_symbol.name,
5331 path,
5332 range: PointUtf16::new(start.row, start.column)..PointUtf16::new(end.row, end.column),
5333 kind,
5334 signature: serialized_symbol
5335 .signature
5336 .try_into()
5337 .map_err(|_| anyhow!("invalid signature"))?,
5338 })
5339 }
5340
5341 async fn handle_buffer_saved(
5342 this: ModelHandle<Self>,
5343 envelope: TypedEnvelope<proto::BufferSaved>,
5344 _: Arc<Client>,
5345 mut cx: AsyncAppContext,
5346 ) -> Result<()> {
5347 let version = deserialize_version(envelope.payload.version);
5348 let mtime = envelope
5349 .payload
5350 .mtime
5351 .ok_or_else(|| anyhow!("missing mtime"))?
5352 .into();
5353
5354 this.update(&mut cx, |this, cx| {
5355 let buffer = this
5356 .opened_buffers
5357 .get(&envelope.payload.buffer_id)
5358 .and_then(|buffer| buffer.upgrade(cx));
5359 if let Some(buffer) = buffer {
5360 buffer.update(cx, |buffer, cx| {
5361 buffer.did_save(version, envelope.payload.fingerprint, mtime, None, cx);
5362 });
5363 }
5364 Ok(())
5365 })
5366 }
5367
5368 async fn handle_buffer_reloaded(
5369 this: ModelHandle<Self>,
5370 envelope: TypedEnvelope<proto::BufferReloaded>,
5371 _: Arc<Client>,
5372 mut cx: AsyncAppContext,
5373 ) -> Result<()> {
5374 let payload = envelope.payload.clone();
5375 let version = deserialize_version(payload.version);
5376 let mtime = payload
5377 .mtime
5378 .ok_or_else(|| anyhow!("missing mtime"))?
5379 .into();
5380 this.update(&mut cx, |this, cx| {
5381 let buffer = this
5382 .opened_buffers
5383 .get(&payload.buffer_id)
5384 .and_then(|buffer| buffer.upgrade(cx));
5385 if let Some(buffer) = buffer {
5386 buffer.update(cx, |buffer, cx| {
5387 buffer.did_reload(version, payload.fingerprint, mtime, cx);
5388 });
5389 }
5390 Ok(())
5391 })
5392 }
5393
5394 pub fn match_paths<'a>(
5395 &self,
5396 query: &'a str,
5397 include_ignored: bool,
5398 smart_case: bool,
5399 max_results: usize,
5400 cancel_flag: &'a AtomicBool,
5401 cx: &AppContext,
5402 ) -> impl 'a + Future<Output = Vec<PathMatch>> {
5403 let worktrees = self
5404 .worktrees(cx)
5405 .filter(|worktree| worktree.read(cx).is_visible())
5406 .collect::<Vec<_>>();
5407 let include_root_name = worktrees.len() > 1;
5408 let candidate_sets = worktrees
5409 .into_iter()
5410 .map(|worktree| CandidateSet {
5411 snapshot: worktree.read(cx).snapshot(),
5412 include_ignored,
5413 include_root_name,
5414 })
5415 .collect::<Vec<_>>();
5416
5417 let background = cx.background().clone();
5418 async move {
5419 fuzzy::match_paths(
5420 candidate_sets.as_slice(),
5421 query,
5422 smart_case,
5423 max_results,
5424 cancel_flag,
5425 background,
5426 )
5427 .await
5428 }
5429 }
5430
5431 fn edits_from_lsp(
5432 &mut self,
5433 buffer: &ModelHandle<Buffer>,
5434 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
5435 version: Option<i32>,
5436 cx: &mut ModelContext<Self>,
5437 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
5438 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, version, cx);
5439 cx.background().spawn(async move {
5440 let snapshot = snapshot?;
5441 let mut lsp_edits = lsp_edits
5442 .into_iter()
5443 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
5444 .collect::<Vec<_>>();
5445 lsp_edits.sort_by_key(|(range, _)| range.start);
5446
5447 let mut lsp_edits = lsp_edits.into_iter().peekable();
5448 let mut edits = Vec::new();
5449 while let Some((mut range, mut new_text)) = lsp_edits.next() {
5450 // Combine any LSP edits that are adjacent.
5451 //
5452 // Also, combine LSP edits that are separated from each other by only
5453 // a newline. This is important because for some code actions,
5454 // Rust-analyzer rewrites the entire buffer via a series of edits that
5455 // are separated by unchanged newline characters.
5456 //
5457 // In order for the diffing logic below to work properly, any edits that
5458 // cancel each other out must be combined into one.
5459 while let Some((next_range, next_text)) = lsp_edits.peek() {
5460 if next_range.start > range.end {
5461 if next_range.start.row > range.end.row + 1
5462 || next_range.start.column > 0
5463 || snapshot.clip_point_utf16(
5464 PointUtf16::new(range.end.row, u32::MAX),
5465 Bias::Left,
5466 ) > range.end
5467 {
5468 break;
5469 }
5470 new_text.push('\n');
5471 }
5472 range.end = next_range.end;
5473 new_text.push_str(&next_text);
5474 lsp_edits.next();
5475 }
5476
5477 if snapshot.clip_point_utf16(range.start, Bias::Left) != range.start
5478 || snapshot.clip_point_utf16(range.end, Bias::Left) != range.end
5479 {
5480 return Err(anyhow!("invalid edits received from language server"));
5481 }
5482
5483 // For multiline edits, perform a diff of the old and new text so that
5484 // we can identify the changes more precisely, preserving the locations
5485 // of any anchors positioned in the unchanged regions.
5486 if range.end.row > range.start.row {
5487 let mut offset = range.start.to_offset(&snapshot);
5488 let old_text = snapshot.text_for_range(range).collect::<String>();
5489
5490 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
5491 let mut moved_since_edit = true;
5492 for change in diff.iter_all_changes() {
5493 let tag = change.tag();
5494 let value = change.value();
5495 match tag {
5496 ChangeTag::Equal => {
5497 offset += value.len();
5498 moved_since_edit = true;
5499 }
5500 ChangeTag::Delete => {
5501 let start = snapshot.anchor_after(offset);
5502 let end = snapshot.anchor_before(offset + value.len());
5503 if moved_since_edit {
5504 edits.push((start..end, String::new()));
5505 } else {
5506 edits.last_mut().unwrap().0.end = end;
5507 }
5508 offset += value.len();
5509 moved_since_edit = false;
5510 }
5511 ChangeTag::Insert => {
5512 if moved_since_edit {
5513 let anchor = snapshot.anchor_after(offset);
5514 edits.push((anchor.clone()..anchor, value.to_string()));
5515 } else {
5516 edits.last_mut().unwrap().1.push_str(value);
5517 }
5518 moved_since_edit = false;
5519 }
5520 }
5521 }
5522 } else if range.end == range.start {
5523 let anchor = snapshot.anchor_after(range.start);
5524 edits.push((anchor.clone()..anchor, new_text));
5525 } else {
5526 let edit_start = snapshot.anchor_after(range.start);
5527 let edit_end = snapshot.anchor_before(range.end);
5528 edits.push((edit_start..edit_end, new_text));
5529 }
5530 }
5531
5532 Ok(edits)
5533 })
5534 }
5535
5536 fn buffer_snapshot_for_lsp_version(
5537 &mut self,
5538 buffer: &ModelHandle<Buffer>,
5539 version: Option<i32>,
5540 cx: &AppContext,
5541 ) -> Result<TextBufferSnapshot> {
5542 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
5543
5544 if let Some(version) = version {
5545 let buffer_id = buffer.read(cx).remote_id();
5546 let snapshots = self
5547 .buffer_snapshots
5548 .get_mut(&buffer_id)
5549 .ok_or_else(|| anyhow!("no snapshot found for buffer {}", buffer_id))?;
5550 let mut found_snapshot = None;
5551 snapshots.retain(|(snapshot_version, snapshot)| {
5552 if snapshot_version + OLD_VERSIONS_TO_RETAIN < version {
5553 false
5554 } else {
5555 if *snapshot_version == version {
5556 found_snapshot = Some(snapshot.clone());
5557 }
5558 true
5559 }
5560 });
5561
5562 found_snapshot.ok_or_else(|| {
5563 anyhow!(
5564 "snapshot not found for buffer {} at version {}",
5565 buffer_id,
5566 version
5567 )
5568 })
5569 } else {
5570 Ok((buffer.read(cx)).text_snapshot())
5571 }
5572 }
5573
5574 fn language_server_for_buffer(
5575 &self,
5576 buffer: &Buffer,
5577 cx: &AppContext,
5578 ) -> Option<&(Arc<dyn LspAdapter>, Arc<LanguageServer>)> {
5579 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
5580 let worktree_id = file.worktree_id(cx);
5581 self.language_servers
5582 .get(&(worktree_id, language.lsp_adapter()?.name()))
5583 } else {
5584 None
5585 }
5586 }
5587}
5588
5589impl ProjectStore {
5590 pub fn new(db: Arc<Db>) -> Self {
5591 Self {
5592 db,
5593 projects: Default::default(),
5594 }
5595 }
5596
5597 pub fn projects<'a>(
5598 &'a self,
5599 cx: &'a AppContext,
5600 ) -> impl 'a + Iterator<Item = ModelHandle<Project>> {
5601 self.projects
5602 .iter()
5603 .filter_map(|project| project.upgrade(cx))
5604 }
5605
5606 fn add_project(&mut self, project: WeakModelHandle<Project>, cx: &mut ModelContext<Self>) {
5607 if let Err(ix) = self
5608 .projects
5609 .binary_search_by_key(&project.id(), WeakModelHandle::id)
5610 {
5611 self.projects.insert(ix, project);
5612 }
5613 cx.notify();
5614 }
5615
5616 fn prune_projects(&mut self, cx: &mut ModelContext<Self>) {
5617 let mut did_change = false;
5618 self.projects.retain(|project| {
5619 if project.is_upgradable(cx) {
5620 true
5621 } else {
5622 did_change = true;
5623 false
5624 }
5625 });
5626 if did_change {
5627 cx.notify();
5628 }
5629 }
5630}
5631
5632impl WorktreeHandle {
5633 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
5634 match self {
5635 WorktreeHandle::Strong(handle) => Some(handle.clone()),
5636 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
5637 }
5638 }
5639}
5640
5641impl OpenBuffer {
5642 pub fn upgrade(&self, cx: &impl UpgradeModelHandle) -> Option<ModelHandle<Buffer>> {
5643 match self {
5644 OpenBuffer::Strong(handle) => Some(handle.clone()),
5645 OpenBuffer::Weak(handle) => handle.upgrade(cx),
5646 OpenBuffer::Loading(_) => None,
5647 }
5648 }
5649}
5650
5651struct CandidateSet {
5652 snapshot: Snapshot,
5653 include_ignored: bool,
5654 include_root_name: bool,
5655}
5656
5657impl<'a> PathMatchCandidateSet<'a> for CandidateSet {
5658 type Candidates = CandidateSetIter<'a>;
5659
5660 fn id(&self) -> usize {
5661 self.snapshot.id().to_usize()
5662 }
5663
5664 fn len(&self) -> usize {
5665 if self.include_ignored {
5666 self.snapshot.file_count()
5667 } else {
5668 self.snapshot.visible_file_count()
5669 }
5670 }
5671
5672 fn prefix(&self) -> Arc<str> {
5673 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
5674 self.snapshot.root_name().into()
5675 } else if self.include_root_name {
5676 format!("{}/", self.snapshot.root_name()).into()
5677 } else {
5678 "".into()
5679 }
5680 }
5681
5682 fn candidates(&'a self, start: usize) -> Self::Candidates {
5683 CandidateSetIter {
5684 traversal: self.snapshot.files(self.include_ignored, start),
5685 }
5686 }
5687}
5688
5689struct CandidateSetIter<'a> {
5690 traversal: Traversal<'a>,
5691}
5692
5693impl<'a> Iterator for CandidateSetIter<'a> {
5694 type Item = PathMatchCandidate<'a>;
5695
5696 fn next(&mut self) -> Option<Self::Item> {
5697 self.traversal.next().map(|entry| {
5698 if let EntryKind::File(char_bag) = entry.kind {
5699 PathMatchCandidate {
5700 path: &entry.path,
5701 char_bag,
5702 }
5703 } else {
5704 unreachable!()
5705 }
5706 })
5707 }
5708}
5709
5710impl Entity for ProjectStore {
5711 type Event = ();
5712}
5713
5714impl Entity for Project {
5715 type Event = Event;
5716
5717 fn release(&mut self, cx: &mut gpui::MutableAppContext) {
5718 self.project_store.update(cx, ProjectStore::prune_projects);
5719
5720 match &self.client_state {
5721 ProjectClientState::Local { remote_id_rx, .. } => {
5722 if let Some(project_id) = *remote_id_rx.borrow() {
5723 self.client
5724 .send(proto::UnregisterProject { project_id })
5725 .log_err();
5726 }
5727 }
5728 ProjectClientState::Remote { remote_id, .. } => {
5729 self.client
5730 .send(proto::LeaveProject {
5731 project_id: *remote_id,
5732 })
5733 .log_err();
5734 }
5735 }
5736 }
5737
5738 fn app_will_quit(
5739 &mut self,
5740 _: &mut MutableAppContext,
5741 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
5742 let shutdown_futures = self
5743 .language_servers
5744 .drain()
5745 .filter_map(|(_, (_, server))| server.shutdown())
5746 .collect::<Vec<_>>();
5747 Some(
5748 async move {
5749 futures::future::join_all(shutdown_futures).await;
5750 }
5751 .boxed(),
5752 )
5753 }
5754}
5755
5756impl Collaborator {
5757 fn from_proto(
5758 message: proto::Collaborator,
5759 user_store: &ModelHandle<UserStore>,
5760 cx: &mut AsyncAppContext,
5761 ) -> impl Future<Output = Result<Self>> {
5762 let user = user_store.update(cx, |user_store, cx| {
5763 user_store.fetch_user(message.user_id, cx)
5764 });
5765
5766 async move {
5767 Ok(Self {
5768 peer_id: PeerId(message.peer_id),
5769 user: user.await?,
5770 replica_id: message.replica_id as ReplicaId,
5771 })
5772 }
5773 }
5774}
5775
5776impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
5777 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
5778 Self {
5779 worktree_id,
5780 path: path.as_ref().into(),
5781 }
5782 }
5783}
5784
5785impl From<lsp::CreateFileOptions> for fs::CreateOptions {
5786 fn from(options: lsp::CreateFileOptions) -> Self {
5787 Self {
5788 overwrite: options.overwrite.unwrap_or(false),
5789 ignore_if_exists: options.ignore_if_exists.unwrap_or(false),
5790 }
5791 }
5792}
5793
5794impl From<lsp::RenameFileOptions> for fs::RenameOptions {
5795 fn from(options: lsp::RenameFileOptions) -> Self {
5796 Self {
5797 overwrite: options.overwrite.unwrap_or(false),
5798 ignore_if_exists: options.ignore_if_exists.unwrap_or(false),
5799 }
5800 }
5801}
5802
5803impl From<lsp::DeleteFileOptions> for fs::RemoveOptions {
5804 fn from(options: lsp::DeleteFileOptions) -> Self {
5805 Self {
5806 recursive: options.recursive.unwrap_or(false),
5807 ignore_if_not_exists: options.ignore_if_not_exists.unwrap_or(false),
5808 }
5809 }
5810}
5811
5812fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
5813 proto::Symbol {
5814 source_worktree_id: symbol.source_worktree_id.to_proto(),
5815 worktree_id: symbol.worktree_id.to_proto(),
5816 language_server_name: symbol.language_server_name.0.to_string(),
5817 name: symbol.name.clone(),
5818 kind: unsafe { mem::transmute(symbol.kind) },
5819 path: symbol.path.to_string_lossy().to_string(),
5820 start: Some(proto::Point {
5821 row: symbol.range.start.row,
5822 column: symbol.range.start.column,
5823 }),
5824 end: Some(proto::Point {
5825 row: symbol.range.end.row,
5826 column: symbol.range.end.column,
5827 }),
5828 signature: symbol.signature.to_vec(),
5829 }
5830}
5831
5832fn relativize_path(base: &Path, path: &Path) -> PathBuf {
5833 let mut path_components = path.components();
5834 let mut base_components = base.components();
5835 let mut components: Vec<Component> = Vec::new();
5836 loop {
5837 match (path_components.next(), base_components.next()) {
5838 (None, None) => break,
5839 (Some(a), None) => {
5840 components.push(a);
5841 components.extend(path_components.by_ref());
5842 break;
5843 }
5844 (None, _) => components.push(Component::ParentDir),
5845 (Some(a), Some(b)) if components.is_empty() && a == b => (),
5846 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
5847 (Some(a), Some(_)) => {
5848 components.push(Component::ParentDir);
5849 for _ in base_components {
5850 components.push(Component::ParentDir);
5851 }
5852 components.push(a);
5853 components.extend(path_components.by_ref());
5854 break;
5855 }
5856 }
5857 }
5858 components.iter().map(|c| c.as_os_str()).collect()
5859}
5860
5861impl Item for Buffer {
5862 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
5863 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
5864 }
5865}
5866
5867#[cfg(test)]
5868mod tests {
5869 use crate::worktree::WorktreeHandle;
5870
5871 use super::{Event, *};
5872 use fs::RealFs;
5873 use futures::{future, StreamExt};
5874 use gpui::{executor::Deterministic, test::subscribe};
5875 use language::{
5876 tree_sitter_rust, tree_sitter_typescript, Diagnostic, FakeLspAdapter, LanguageConfig,
5877 OffsetRangeExt, Point, ToPoint,
5878 };
5879 use lsp::Url;
5880 use serde_json::json;
5881 use std::{cell::RefCell, os::unix, path::PathBuf, rc::Rc, task::Poll};
5882 use unindent::Unindent as _;
5883 use util::{assert_set_eq, test::temp_tree};
5884
5885 #[gpui::test]
5886 async fn test_populate_and_search(cx: &mut gpui::TestAppContext) {
5887 let dir = temp_tree(json!({
5888 "root": {
5889 "apple": "",
5890 "banana": {
5891 "carrot": {
5892 "date": "",
5893 "endive": "",
5894 }
5895 },
5896 "fennel": {
5897 "grape": "",
5898 }
5899 }
5900 }));
5901
5902 let root_link_path = dir.path().join("root_link");
5903 unix::fs::symlink(&dir.path().join("root"), &root_link_path).unwrap();
5904 unix::fs::symlink(
5905 &dir.path().join("root/fennel"),
5906 &dir.path().join("root/finnochio"),
5907 )
5908 .unwrap();
5909
5910 let project = Project::test(Arc::new(RealFs), [root_link_path.as_ref()], cx).await;
5911
5912 project.read_with(cx, |project, cx| {
5913 let tree = project.worktrees(cx).next().unwrap().read(cx);
5914 assert_eq!(tree.file_count(), 5);
5915 assert_eq!(
5916 tree.inode_for_path("fennel/grape"),
5917 tree.inode_for_path("finnochio/grape")
5918 );
5919 });
5920
5921 let cancel_flag = Default::default();
5922 let results = project
5923 .read_with(cx, |project, cx| {
5924 project.match_paths("bna", false, false, 10, &cancel_flag, cx)
5925 })
5926 .await;
5927 assert_eq!(
5928 results
5929 .into_iter()
5930 .map(|result| result.path)
5931 .collect::<Vec<Arc<Path>>>(),
5932 vec![
5933 PathBuf::from("banana/carrot/date").into(),
5934 PathBuf::from("banana/carrot/endive").into(),
5935 ]
5936 );
5937 }
5938
5939 #[gpui::test]
5940 async fn test_managing_language_servers(cx: &mut gpui::TestAppContext) {
5941 cx.foreground().forbid_parking();
5942
5943 let mut rust_language = Language::new(
5944 LanguageConfig {
5945 name: "Rust".into(),
5946 path_suffixes: vec!["rs".to_string()],
5947 ..Default::default()
5948 },
5949 Some(tree_sitter_rust::language()),
5950 );
5951 let mut json_language = Language::new(
5952 LanguageConfig {
5953 name: "JSON".into(),
5954 path_suffixes: vec!["json".to_string()],
5955 ..Default::default()
5956 },
5957 None,
5958 );
5959 let mut fake_rust_servers = rust_language.set_fake_lsp_adapter(FakeLspAdapter {
5960 name: "the-rust-language-server",
5961 capabilities: lsp::ServerCapabilities {
5962 completion_provider: Some(lsp::CompletionOptions {
5963 trigger_characters: Some(vec![".".to_string(), "::".to_string()]),
5964 ..Default::default()
5965 }),
5966 ..Default::default()
5967 },
5968 ..Default::default()
5969 });
5970 let mut fake_json_servers = json_language.set_fake_lsp_adapter(FakeLspAdapter {
5971 name: "the-json-language-server",
5972 capabilities: lsp::ServerCapabilities {
5973 completion_provider: Some(lsp::CompletionOptions {
5974 trigger_characters: Some(vec![":".to_string()]),
5975 ..Default::default()
5976 }),
5977 ..Default::default()
5978 },
5979 ..Default::default()
5980 });
5981
5982 let fs = FakeFs::new(cx.background());
5983 fs.insert_tree(
5984 "/the-root",
5985 json!({
5986 "test.rs": "const A: i32 = 1;",
5987 "test2.rs": "",
5988 "Cargo.toml": "a = 1",
5989 "package.json": "{\"a\": 1}",
5990 }),
5991 )
5992 .await;
5993
5994 let project = Project::test(fs.clone(), ["/the-root".as_ref()], cx).await;
5995 project.update(cx, |project, _| {
5996 project.languages.add(Arc::new(rust_language));
5997 project.languages.add(Arc::new(json_language));
5998 });
5999
6000 // Open a buffer without an associated language server.
6001 let toml_buffer = project
6002 .update(cx, |project, cx| {
6003 project.open_local_buffer("/the-root/Cargo.toml", cx)
6004 })
6005 .await
6006 .unwrap();
6007
6008 // Open a buffer with an associated language server.
6009 let rust_buffer = project
6010 .update(cx, |project, cx| {
6011 project.open_local_buffer("/the-root/test.rs", cx)
6012 })
6013 .await
6014 .unwrap();
6015
6016 // A server is started up, and it is notified about Rust files.
6017 let mut fake_rust_server = fake_rust_servers.next().await.unwrap();
6018 assert_eq!(
6019 fake_rust_server
6020 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6021 .await
6022 .text_document,
6023 lsp::TextDocumentItem {
6024 uri: lsp::Url::from_file_path("/the-root/test.rs").unwrap(),
6025 version: 0,
6026 text: "const A: i32 = 1;".to_string(),
6027 language_id: Default::default()
6028 }
6029 );
6030
6031 // The buffer is configured based on the language server's capabilities.
6032 rust_buffer.read_with(cx, |buffer, _| {
6033 assert_eq!(
6034 buffer.completion_triggers(),
6035 &[".".to_string(), "::".to_string()]
6036 );
6037 });
6038 toml_buffer.read_with(cx, |buffer, _| {
6039 assert!(buffer.completion_triggers().is_empty());
6040 });
6041
6042 // Edit a buffer. The changes are reported to the language server.
6043 rust_buffer.update(cx, |buffer, cx| buffer.edit([(16..16, "2")], cx));
6044 assert_eq!(
6045 fake_rust_server
6046 .receive_notification::<lsp::notification::DidChangeTextDocument>()
6047 .await
6048 .text_document,
6049 lsp::VersionedTextDocumentIdentifier::new(
6050 lsp::Url::from_file_path("/the-root/test.rs").unwrap(),
6051 1
6052 )
6053 );
6054
6055 // Open a third buffer with a different associated language server.
6056 let json_buffer = project
6057 .update(cx, |project, cx| {
6058 project.open_local_buffer("/the-root/package.json", cx)
6059 })
6060 .await
6061 .unwrap();
6062
6063 // A json language server is started up and is only notified about the json buffer.
6064 let mut fake_json_server = fake_json_servers.next().await.unwrap();
6065 assert_eq!(
6066 fake_json_server
6067 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6068 .await
6069 .text_document,
6070 lsp::TextDocumentItem {
6071 uri: lsp::Url::from_file_path("/the-root/package.json").unwrap(),
6072 version: 0,
6073 text: "{\"a\": 1}".to_string(),
6074 language_id: Default::default()
6075 }
6076 );
6077
6078 // This buffer is configured based on the second language server's
6079 // capabilities.
6080 json_buffer.read_with(cx, |buffer, _| {
6081 assert_eq!(buffer.completion_triggers(), &[":".to_string()]);
6082 });
6083
6084 // When opening another buffer whose language server is already running,
6085 // it is also configured based on the existing language server's capabilities.
6086 let rust_buffer2 = project
6087 .update(cx, |project, cx| {
6088 project.open_local_buffer("/the-root/test2.rs", cx)
6089 })
6090 .await
6091 .unwrap();
6092 rust_buffer2.read_with(cx, |buffer, _| {
6093 assert_eq!(
6094 buffer.completion_triggers(),
6095 &[".".to_string(), "::".to_string()]
6096 );
6097 });
6098
6099 // Changes are reported only to servers matching the buffer's language.
6100 toml_buffer.update(cx, |buffer, cx| buffer.edit([(5..5, "23")], cx));
6101 rust_buffer2.update(cx, |buffer, cx| buffer.edit([(0..0, "let x = 1;")], cx));
6102 assert_eq!(
6103 fake_rust_server
6104 .receive_notification::<lsp::notification::DidChangeTextDocument>()
6105 .await
6106 .text_document,
6107 lsp::VersionedTextDocumentIdentifier::new(
6108 lsp::Url::from_file_path("/the-root/test2.rs").unwrap(),
6109 1
6110 )
6111 );
6112
6113 // Save notifications are reported to all servers.
6114 toml_buffer
6115 .update(cx, |buffer, cx| buffer.save(cx))
6116 .await
6117 .unwrap();
6118 assert_eq!(
6119 fake_rust_server
6120 .receive_notification::<lsp::notification::DidSaveTextDocument>()
6121 .await
6122 .text_document,
6123 lsp::TextDocumentIdentifier::new(
6124 lsp::Url::from_file_path("/the-root/Cargo.toml").unwrap()
6125 )
6126 );
6127 assert_eq!(
6128 fake_json_server
6129 .receive_notification::<lsp::notification::DidSaveTextDocument>()
6130 .await
6131 .text_document,
6132 lsp::TextDocumentIdentifier::new(
6133 lsp::Url::from_file_path("/the-root/Cargo.toml").unwrap()
6134 )
6135 );
6136
6137 // Renames are reported only to servers matching the buffer's language.
6138 fs.rename(
6139 Path::new("/the-root/test2.rs"),
6140 Path::new("/the-root/test3.rs"),
6141 Default::default(),
6142 )
6143 .await
6144 .unwrap();
6145 assert_eq!(
6146 fake_rust_server
6147 .receive_notification::<lsp::notification::DidCloseTextDocument>()
6148 .await
6149 .text_document,
6150 lsp::TextDocumentIdentifier::new(
6151 lsp::Url::from_file_path("/the-root/test2.rs").unwrap()
6152 ),
6153 );
6154 assert_eq!(
6155 fake_rust_server
6156 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6157 .await
6158 .text_document,
6159 lsp::TextDocumentItem {
6160 uri: lsp::Url::from_file_path("/the-root/test3.rs").unwrap(),
6161 version: 0,
6162 text: rust_buffer2.read_with(cx, |buffer, _| buffer.text()),
6163 language_id: Default::default()
6164 },
6165 );
6166
6167 rust_buffer2.update(cx, |buffer, cx| {
6168 buffer.update_diagnostics(
6169 DiagnosticSet::from_sorted_entries(
6170 vec![DiagnosticEntry {
6171 diagnostic: Default::default(),
6172 range: Anchor::MIN..Anchor::MAX,
6173 }],
6174 &buffer.snapshot(),
6175 ),
6176 cx,
6177 );
6178 assert_eq!(
6179 buffer
6180 .snapshot()
6181 .diagnostics_in_range::<_, usize>(0..buffer.len(), false)
6182 .count(),
6183 1
6184 );
6185 });
6186
6187 // When the rename changes the extension of the file, the buffer gets closed on the old
6188 // language server and gets opened on the new one.
6189 fs.rename(
6190 Path::new("/the-root/test3.rs"),
6191 Path::new("/the-root/test3.json"),
6192 Default::default(),
6193 )
6194 .await
6195 .unwrap();
6196 assert_eq!(
6197 fake_rust_server
6198 .receive_notification::<lsp::notification::DidCloseTextDocument>()
6199 .await
6200 .text_document,
6201 lsp::TextDocumentIdentifier::new(
6202 lsp::Url::from_file_path("/the-root/test3.rs").unwrap(),
6203 ),
6204 );
6205 assert_eq!(
6206 fake_json_server
6207 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6208 .await
6209 .text_document,
6210 lsp::TextDocumentItem {
6211 uri: lsp::Url::from_file_path("/the-root/test3.json").unwrap(),
6212 version: 0,
6213 text: rust_buffer2.read_with(cx, |buffer, _| buffer.text()),
6214 language_id: Default::default()
6215 },
6216 );
6217
6218 // We clear the diagnostics, since the language has changed.
6219 rust_buffer2.read_with(cx, |buffer, _| {
6220 assert_eq!(
6221 buffer
6222 .snapshot()
6223 .diagnostics_in_range::<_, usize>(0..buffer.len(), false)
6224 .count(),
6225 0
6226 );
6227 });
6228
6229 // The renamed file's version resets after changing language server.
6230 rust_buffer2.update(cx, |buffer, cx| buffer.edit([(0..0, "// ")], cx));
6231 assert_eq!(
6232 fake_json_server
6233 .receive_notification::<lsp::notification::DidChangeTextDocument>()
6234 .await
6235 .text_document,
6236 lsp::VersionedTextDocumentIdentifier::new(
6237 lsp::Url::from_file_path("/the-root/test3.json").unwrap(),
6238 1
6239 )
6240 );
6241
6242 // Restart language servers
6243 project.update(cx, |project, cx| {
6244 project.restart_language_servers_for_buffers(
6245 vec![rust_buffer.clone(), json_buffer.clone()],
6246 cx,
6247 );
6248 });
6249
6250 let mut rust_shutdown_requests = fake_rust_server
6251 .handle_request::<lsp::request::Shutdown, _, _>(|_, _| future::ready(Ok(())));
6252 let mut json_shutdown_requests = fake_json_server
6253 .handle_request::<lsp::request::Shutdown, _, _>(|_, _| future::ready(Ok(())));
6254 futures::join!(rust_shutdown_requests.next(), json_shutdown_requests.next());
6255
6256 let mut fake_rust_server = fake_rust_servers.next().await.unwrap();
6257 let mut fake_json_server = fake_json_servers.next().await.unwrap();
6258
6259 // Ensure rust document is reopened in new rust language server
6260 assert_eq!(
6261 fake_rust_server
6262 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6263 .await
6264 .text_document,
6265 lsp::TextDocumentItem {
6266 uri: lsp::Url::from_file_path("/the-root/test.rs").unwrap(),
6267 version: 1,
6268 text: rust_buffer.read_with(cx, |buffer, _| buffer.text()),
6269 language_id: Default::default()
6270 }
6271 );
6272
6273 // Ensure json documents are reopened in new json language server
6274 assert_set_eq!(
6275 [
6276 fake_json_server
6277 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6278 .await
6279 .text_document,
6280 fake_json_server
6281 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6282 .await
6283 .text_document,
6284 ],
6285 [
6286 lsp::TextDocumentItem {
6287 uri: lsp::Url::from_file_path("/the-root/package.json").unwrap(),
6288 version: 0,
6289 text: json_buffer.read_with(cx, |buffer, _| buffer.text()),
6290 language_id: Default::default()
6291 },
6292 lsp::TextDocumentItem {
6293 uri: lsp::Url::from_file_path("/the-root/test3.json").unwrap(),
6294 version: 1,
6295 text: rust_buffer2.read_with(cx, |buffer, _| buffer.text()),
6296 language_id: Default::default()
6297 }
6298 ]
6299 );
6300
6301 // Close notifications are reported only to servers matching the buffer's language.
6302 cx.update(|_| drop(json_buffer));
6303 let close_message = lsp::DidCloseTextDocumentParams {
6304 text_document: lsp::TextDocumentIdentifier::new(
6305 lsp::Url::from_file_path("/the-root/package.json").unwrap(),
6306 ),
6307 };
6308 assert_eq!(
6309 fake_json_server
6310 .receive_notification::<lsp::notification::DidCloseTextDocument>()
6311 .await,
6312 close_message,
6313 );
6314 }
6315
6316 #[gpui::test]
6317 async fn test_single_file_worktrees_diagnostics(cx: &mut gpui::TestAppContext) {
6318 cx.foreground().forbid_parking();
6319
6320 let fs = FakeFs::new(cx.background());
6321 fs.insert_tree(
6322 "/dir",
6323 json!({
6324 "a.rs": "let a = 1;",
6325 "b.rs": "let b = 2;"
6326 }),
6327 )
6328 .await;
6329
6330 let project = Project::test(fs, ["/dir/a.rs".as_ref(), "/dir/b.rs".as_ref()], cx).await;
6331
6332 let buffer_a = project
6333 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
6334 .await
6335 .unwrap();
6336 let buffer_b = project
6337 .update(cx, |project, cx| project.open_local_buffer("/dir/b.rs", cx))
6338 .await
6339 .unwrap();
6340
6341 project.update(cx, |project, cx| {
6342 project
6343 .update_diagnostics(
6344 0,
6345 lsp::PublishDiagnosticsParams {
6346 uri: Url::from_file_path("/dir/a.rs").unwrap(),
6347 version: None,
6348 diagnostics: vec![lsp::Diagnostic {
6349 range: lsp::Range::new(
6350 lsp::Position::new(0, 4),
6351 lsp::Position::new(0, 5),
6352 ),
6353 severity: Some(lsp::DiagnosticSeverity::ERROR),
6354 message: "error 1".to_string(),
6355 ..Default::default()
6356 }],
6357 },
6358 &[],
6359 cx,
6360 )
6361 .unwrap();
6362 project
6363 .update_diagnostics(
6364 0,
6365 lsp::PublishDiagnosticsParams {
6366 uri: Url::from_file_path("/dir/b.rs").unwrap(),
6367 version: None,
6368 diagnostics: vec![lsp::Diagnostic {
6369 range: lsp::Range::new(
6370 lsp::Position::new(0, 4),
6371 lsp::Position::new(0, 5),
6372 ),
6373 severity: Some(lsp::DiagnosticSeverity::WARNING),
6374 message: "error 2".to_string(),
6375 ..Default::default()
6376 }],
6377 },
6378 &[],
6379 cx,
6380 )
6381 .unwrap();
6382 });
6383
6384 buffer_a.read_with(cx, |buffer, _| {
6385 let chunks = chunks_with_diagnostics(&buffer, 0..buffer.len());
6386 assert_eq!(
6387 chunks
6388 .iter()
6389 .map(|(s, d)| (s.as_str(), *d))
6390 .collect::<Vec<_>>(),
6391 &[
6392 ("let ", None),
6393 ("a", Some(DiagnosticSeverity::ERROR)),
6394 (" = 1;", None),
6395 ]
6396 );
6397 });
6398 buffer_b.read_with(cx, |buffer, _| {
6399 let chunks = chunks_with_diagnostics(&buffer, 0..buffer.len());
6400 assert_eq!(
6401 chunks
6402 .iter()
6403 .map(|(s, d)| (s.as_str(), *d))
6404 .collect::<Vec<_>>(),
6405 &[
6406 ("let ", None),
6407 ("b", Some(DiagnosticSeverity::WARNING)),
6408 (" = 2;", None),
6409 ]
6410 );
6411 });
6412 }
6413
6414 #[gpui::test]
6415 async fn test_disk_based_diagnostics_progress(cx: &mut gpui::TestAppContext) {
6416 cx.foreground().forbid_parking();
6417
6418 let progress_token = "the-progress-token";
6419 let mut language = Language::new(
6420 LanguageConfig {
6421 name: "Rust".into(),
6422 path_suffixes: vec!["rs".to_string()],
6423 ..Default::default()
6424 },
6425 Some(tree_sitter_rust::language()),
6426 );
6427 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
6428 disk_based_diagnostics_progress_token: Some(progress_token),
6429 disk_based_diagnostics_sources: &["disk"],
6430 ..Default::default()
6431 });
6432
6433 let fs = FakeFs::new(cx.background());
6434 fs.insert_tree(
6435 "/dir",
6436 json!({
6437 "a.rs": "fn a() { A }",
6438 "b.rs": "const y: i32 = 1",
6439 }),
6440 )
6441 .await;
6442
6443 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
6444 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
6445 let worktree_id =
6446 project.read_with(cx, |p, cx| p.worktrees(cx).next().unwrap().read(cx).id());
6447
6448 // Cause worktree to start the fake language server
6449 let _buffer = project
6450 .update(cx, |project, cx| project.open_local_buffer("/dir/b.rs", cx))
6451 .await
6452 .unwrap();
6453
6454 let mut events = subscribe(&project, cx);
6455
6456 let fake_server = fake_servers.next().await.unwrap();
6457 fake_server.start_progress(progress_token).await;
6458 assert_eq!(
6459 events.next().await.unwrap(),
6460 Event::DiskBasedDiagnosticsStarted {
6461 language_server_id: 0,
6462 }
6463 );
6464
6465 fake_server.notify::<lsp::notification::PublishDiagnostics>(
6466 lsp::PublishDiagnosticsParams {
6467 uri: Url::from_file_path("/dir/a.rs").unwrap(),
6468 version: None,
6469 diagnostics: vec![lsp::Diagnostic {
6470 range: lsp::Range::new(lsp::Position::new(0, 9), lsp::Position::new(0, 10)),
6471 severity: Some(lsp::DiagnosticSeverity::ERROR),
6472 message: "undefined variable 'A'".to_string(),
6473 ..Default::default()
6474 }],
6475 },
6476 );
6477 assert_eq!(
6478 events.next().await.unwrap(),
6479 Event::DiagnosticsUpdated {
6480 language_server_id: 0,
6481 path: (worktree_id, Path::new("a.rs")).into()
6482 }
6483 );
6484
6485 fake_server.end_progress(progress_token);
6486 assert_eq!(
6487 events.next().await.unwrap(),
6488 Event::DiskBasedDiagnosticsFinished {
6489 language_server_id: 0
6490 }
6491 );
6492
6493 let buffer = project
6494 .update(cx, |p, cx| p.open_local_buffer("/dir/a.rs", cx))
6495 .await
6496 .unwrap();
6497
6498 buffer.read_with(cx, |buffer, _| {
6499 let snapshot = buffer.snapshot();
6500 let diagnostics = snapshot
6501 .diagnostics_in_range::<_, Point>(0..buffer.len(), false)
6502 .collect::<Vec<_>>();
6503 assert_eq!(
6504 diagnostics,
6505 &[DiagnosticEntry {
6506 range: Point::new(0, 9)..Point::new(0, 10),
6507 diagnostic: Diagnostic {
6508 severity: lsp::DiagnosticSeverity::ERROR,
6509 message: "undefined variable 'A'".to_string(),
6510 group_id: 0,
6511 is_primary: true,
6512 ..Default::default()
6513 }
6514 }]
6515 )
6516 });
6517
6518 // Ensure publishing empty diagnostics twice only results in one update event.
6519 fake_server.notify::<lsp::notification::PublishDiagnostics>(
6520 lsp::PublishDiagnosticsParams {
6521 uri: Url::from_file_path("/dir/a.rs").unwrap(),
6522 version: None,
6523 diagnostics: Default::default(),
6524 },
6525 );
6526 assert_eq!(
6527 events.next().await.unwrap(),
6528 Event::DiagnosticsUpdated {
6529 language_server_id: 0,
6530 path: (worktree_id, Path::new("a.rs")).into()
6531 }
6532 );
6533
6534 fake_server.notify::<lsp::notification::PublishDiagnostics>(
6535 lsp::PublishDiagnosticsParams {
6536 uri: Url::from_file_path("/dir/a.rs").unwrap(),
6537 version: None,
6538 diagnostics: Default::default(),
6539 },
6540 );
6541 cx.foreground().run_until_parked();
6542 assert_eq!(futures::poll!(events.next()), Poll::Pending);
6543 }
6544
6545 #[gpui::test]
6546 async fn test_restarting_server_with_diagnostics_running(cx: &mut gpui::TestAppContext) {
6547 cx.foreground().forbid_parking();
6548
6549 let progress_token = "the-progress-token";
6550 let mut language = Language::new(
6551 LanguageConfig {
6552 path_suffixes: vec!["rs".to_string()],
6553 ..Default::default()
6554 },
6555 None,
6556 );
6557 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
6558 disk_based_diagnostics_sources: &["disk"],
6559 disk_based_diagnostics_progress_token: Some(progress_token),
6560 ..Default::default()
6561 });
6562
6563 let fs = FakeFs::new(cx.background());
6564 fs.insert_tree("/dir", json!({ "a.rs": "" })).await;
6565
6566 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
6567 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
6568
6569 let buffer = project
6570 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
6571 .await
6572 .unwrap();
6573
6574 // Simulate diagnostics starting to update.
6575 let fake_server = fake_servers.next().await.unwrap();
6576 fake_server.start_progress(progress_token).await;
6577
6578 // Restart the server before the diagnostics finish updating.
6579 project.update(cx, |project, cx| {
6580 project.restart_language_servers_for_buffers([buffer], cx);
6581 });
6582 let mut events = subscribe(&project, cx);
6583
6584 // Simulate the newly started server sending more diagnostics.
6585 let fake_server = fake_servers.next().await.unwrap();
6586 fake_server.start_progress(progress_token).await;
6587 assert_eq!(
6588 events.next().await.unwrap(),
6589 Event::DiskBasedDiagnosticsStarted {
6590 language_server_id: 1
6591 }
6592 );
6593 project.read_with(cx, |project, _| {
6594 assert_eq!(
6595 project
6596 .language_servers_running_disk_based_diagnostics()
6597 .collect::<Vec<_>>(),
6598 [1]
6599 );
6600 });
6601
6602 // All diagnostics are considered done, despite the old server's diagnostic
6603 // task never completing.
6604 fake_server.end_progress(progress_token);
6605 assert_eq!(
6606 events.next().await.unwrap(),
6607 Event::DiskBasedDiagnosticsFinished {
6608 language_server_id: 1
6609 }
6610 );
6611 project.read_with(cx, |project, _| {
6612 assert_eq!(
6613 project
6614 .language_servers_running_disk_based_diagnostics()
6615 .collect::<Vec<_>>(),
6616 [0; 0]
6617 );
6618 });
6619 }
6620
6621 #[gpui::test]
6622 async fn test_toggling_enable_language_server(
6623 deterministic: Arc<Deterministic>,
6624 cx: &mut gpui::TestAppContext,
6625 ) {
6626 deterministic.forbid_parking();
6627
6628 let mut rust = Language::new(
6629 LanguageConfig {
6630 name: Arc::from("Rust"),
6631 path_suffixes: vec!["rs".to_string()],
6632 ..Default::default()
6633 },
6634 None,
6635 );
6636 let mut fake_rust_servers = rust.set_fake_lsp_adapter(FakeLspAdapter {
6637 name: "rust-lsp",
6638 ..Default::default()
6639 });
6640 let mut js = Language::new(
6641 LanguageConfig {
6642 name: Arc::from("JavaScript"),
6643 path_suffixes: vec!["js".to_string()],
6644 ..Default::default()
6645 },
6646 None,
6647 );
6648 let mut fake_js_servers = js.set_fake_lsp_adapter(FakeLspAdapter {
6649 name: "js-lsp",
6650 ..Default::default()
6651 });
6652
6653 let fs = FakeFs::new(cx.background());
6654 fs.insert_tree("/dir", json!({ "a.rs": "", "b.js": "" }))
6655 .await;
6656
6657 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
6658 project.update(cx, |project, _| {
6659 project.languages.add(Arc::new(rust));
6660 project.languages.add(Arc::new(js));
6661 });
6662
6663 let _rs_buffer = project
6664 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
6665 .await
6666 .unwrap();
6667 let _js_buffer = project
6668 .update(cx, |project, cx| project.open_local_buffer("/dir/b.js", cx))
6669 .await
6670 .unwrap();
6671
6672 let mut fake_rust_server_1 = fake_rust_servers.next().await.unwrap();
6673 assert_eq!(
6674 fake_rust_server_1
6675 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6676 .await
6677 .text_document
6678 .uri
6679 .as_str(),
6680 "file:///dir/a.rs"
6681 );
6682
6683 let mut fake_js_server = fake_js_servers.next().await.unwrap();
6684 assert_eq!(
6685 fake_js_server
6686 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6687 .await
6688 .text_document
6689 .uri
6690 .as_str(),
6691 "file:///dir/b.js"
6692 );
6693
6694 // Disable Rust language server, ensuring only that server gets stopped.
6695 cx.update(|cx| {
6696 cx.update_global(|settings: &mut Settings, _| {
6697 settings.language_overrides.insert(
6698 Arc::from("Rust"),
6699 settings::LanguageSettings {
6700 enable_language_server: Some(false),
6701 ..Default::default()
6702 },
6703 );
6704 })
6705 });
6706 fake_rust_server_1
6707 .receive_notification::<lsp::notification::Exit>()
6708 .await;
6709
6710 // Enable Rust and disable JavaScript language servers, ensuring that the
6711 // former gets started again and that the latter stops.
6712 cx.update(|cx| {
6713 cx.update_global(|settings: &mut Settings, _| {
6714 settings.language_overrides.insert(
6715 Arc::from("Rust"),
6716 settings::LanguageSettings {
6717 enable_language_server: Some(true),
6718 ..Default::default()
6719 },
6720 );
6721 settings.language_overrides.insert(
6722 Arc::from("JavaScript"),
6723 settings::LanguageSettings {
6724 enable_language_server: Some(false),
6725 ..Default::default()
6726 },
6727 );
6728 })
6729 });
6730 let mut fake_rust_server_2 = fake_rust_servers.next().await.unwrap();
6731 assert_eq!(
6732 fake_rust_server_2
6733 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6734 .await
6735 .text_document
6736 .uri
6737 .as_str(),
6738 "file:///dir/a.rs"
6739 );
6740 fake_js_server
6741 .receive_notification::<lsp::notification::Exit>()
6742 .await;
6743 }
6744
6745 #[gpui::test]
6746 async fn test_transforming_diagnostics(cx: &mut gpui::TestAppContext) {
6747 cx.foreground().forbid_parking();
6748
6749 let mut language = Language::new(
6750 LanguageConfig {
6751 name: "Rust".into(),
6752 path_suffixes: vec!["rs".to_string()],
6753 ..Default::default()
6754 },
6755 Some(tree_sitter_rust::language()),
6756 );
6757 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
6758 disk_based_diagnostics_sources: &["disk"],
6759 ..Default::default()
6760 });
6761
6762 let text = "
6763 fn a() { A }
6764 fn b() { BB }
6765 fn c() { CCC }
6766 "
6767 .unindent();
6768
6769 let fs = FakeFs::new(cx.background());
6770 fs.insert_tree("/dir", json!({ "a.rs": text })).await;
6771
6772 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
6773 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
6774
6775 let buffer = project
6776 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
6777 .await
6778 .unwrap();
6779
6780 let mut fake_server = fake_servers.next().await.unwrap();
6781 let open_notification = fake_server
6782 .receive_notification::<lsp::notification::DidOpenTextDocument>()
6783 .await;
6784
6785 // Edit the buffer, moving the content down
6786 buffer.update(cx, |buffer, cx| buffer.edit([(0..0, "\n\n")], cx));
6787 let change_notification_1 = fake_server
6788 .receive_notification::<lsp::notification::DidChangeTextDocument>()
6789 .await;
6790 assert!(
6791 change_notification_1.text_document.version > open_notification.text_document.version
6792 );
6793
6794 // Report some diagnostics for the initial version of the buffer
6795 fake_server.notify::<lsp::notification::PublishDiagnostics>(
6796 lsp::PublishDiagnosticsParams {
6797 uri: lsp::Url::from_file_path("/dir/a.rs").unwrap(),
6798 version: Some(open_notification.text_document.version),
6799 diagnostics: vec![
6800 lsp::Diagnostic {
6801 range: lsp::Range::new(lsp::Position::new(0, 9), lsp::Position::new(0, 10)),
6802 severity: Some(DiagnosticSeverity::ERROR),
6803 message: "undefined variable 'A'".to_string(),
6804 source: Some("disk".to_string()),
6805 ..Default::default()
6806 },
6807 lsp::Diagnostic {
6808 range: lsp::Range::new(lsp::Position::new(1, 9), lsp::Position::new(1, 11)),
6809 severity: Some(DiagnosticSeverity::ERROR),
6810 message: "undefined variable 'BB'".to_string(),
6811 source: Some("disk".to_string()),
6812 ..Default::default()
6813 },
6814 lsp::Diagnostic {
6815 range: lsp::Range::new(lsp::Position::new(2, 9), lsp::Position::new(2, 12)),
6816 severity: Some(DiagnosticSeverity::ERROR),
6817 source: Some("disk".to_string()),
6818 message: "undefined variable 'CCC'".to_string(),
6819 ..Default::default()
6820 },
6821 ],
6822 },
6823 );
6824
6825 // The diagnostics have moved down since they were created.
6826 buffer.next_notification(cx).await;
6827 buffer.read_with(cx, |buffer, _| {
6828 assert_eq!(
6829 buffer
6830 .snapshot()
6831 .diagnostics_in_range::<_, Point>(Point::new(3, 0)..Point::new(5, 0), false)
6832 .collect::<Vec<_>>(),
6833 &[
6834 DiagnosticEntry {
6835 range: Point::new(3, 9)..Point::new(3, 11),
6836 diagnostic: Diagnostic {
6837 severity: DiagnosticSeverity::ERROR,
6838 message: "undefined variable 'BB'".to_string(),
6839 is_disk_based: true,
6840 group_id: 1,
6841 is_primary: true,
6842 ..Default::default()
6843 },
6844 },
6845 DiagnosticEntry {
6846 range: Point::new(4, 9)..Point::new(4, 12),
6847 diagnostic: Diagnostic {
6848 severity: DiagnosticSeverity::ERROR,
6849 message: "undefined variable 'CCC'".to_string(),
6850 is_disk_based: true,
6851 group_id: 2,
6852 is_primary: true,
6853 ..Default::default()
6854 }
6855 }
6856 ]
6857 );
6858 assert_eq!(
6859 chunks_with_diagnostics(buffer, 0..buffer.len()),
6860 [
6861 ("\n\nfn a() { ".to_string(), None),
6862 ("A".to_string(), Some(DiagnosticSeverity::ERROR)),
6863 (" }\nfn b() { ".to_string(), None),
6864 ("BB".to_string(), Some(DiagnosticSeverity::ERROR)),
6865 (" }\nfn c() { ".to_string(), None),
6866 ("CCC".to_string(), Some(DiagnosticSeverity::ERROR)),
6867 (" }\n".to_string(), None),
6868 ]
6869 );
6870 assert_eq!(
6871 chunks_with_diagnostics(buffer, Point::new(3, 10)..Point::new(4, 11)),
6872 [
6873 ("B".to_string(), Some(DiagnosticSeverity::ERROR)),
6874 (" }\nfn c() { ".to_string(), None),
6875 ("CC".to_string(), Some(DiagnosticSeverity::ERROR)),
6876 ]
6877 );
6878 });
6879
6880 // Ensure overlapping diagnostics are highlighted correctly.
6881 fake_server.notify::<lsp::notification::PublishDiagnostics>(
6882 lsp::PublishDiagnosticsParams {
6883 uri: lsp::Url::from_file_path("/dir/a.rs").unwrap(),
6884 version: Some(open_notification.text_document.version),
6885 diagnostics: vec![
6886 lsp::Diagnostic {
6887 range: lsp::Range::new(lsp::Position::new(0, 9), lsp::Position::new(0, 10)),
6888 severity: Some(DiagnosticSeverity::ERROR),
6889 message: "undefined variable 'A'".to_string(),
6890 source: Some("disk".to_string()),
6891 ..Default::default()
6892 },
6893 lsp::Diagnostic {
6894 range: lsp::Range::new(lsp::Position::new(0, 9), lsp::Position::new(0, 12)),
6895 severity: Some(DiagnosticSeverity::WARNING),
6896 message: "unreachable statement".to_string(),
6897 source: Some("disk".to_string()),
6898 ..Default::default()
6899 },
6900 ],
6901 },
6902 );
6903
6904 buffer.next_notification(cx).await;
6905 buffer.read_with(cx, |buffer, _| {
6906 assert_eq!(
6907 buffer
6908 .snapshot()
6909 .diagnostics_in_range::<_, Point>(Point::new(2, 0)..Point::new(3, 0), false)
6910 .collect::<Vec<_>>(),
6911 &[
6912 DiagnosticEntry {
6913 range: Point::new(2, 9)..Point::new(2, 12),
6914 diagnostic: Diagnostic {
6915 severity: DiagnosticSeverity::WARNING,
6916 message: "unreachable statement".to_string(),
6917 is_disk_based: true,
6918 group_id: 4,
6919 is_primary: true,
6920 ..Default::default()
6921 }
6922 },
6923 DiagnosticEntry {
6924 range: Point::new(2, 9)..Point::new(2, 10),
6925 diagnostic: Diagnostic {
6926 severity: DiagnosticSeverity::ERROR,
6927 message: "undefined variable 'A'".to_string(),
6928 is_disk_based: true,
6929 group_id: 3,
6930 is_primary: true,
6931 ..Default::default()
6932 },
6933 }
6934 ]
6935 );
6936 assert_eq!(
6937 chunks_with_diagnostics(buffer, Point::new(2, 0)..Point::new(3, 0)),
6938 [
6939 ("fn a() { ".to_string(), None),
6940 ("A".to_string(), Some(DiagnosticSeverity::ERROR)),
6941 (" }".to_string(), Some(DiagnosticSeverity::WARNING)),
6942 ("\n".to_string(), None),
6943 ]
6944 );
6945 assert_eq!(
6946 chunks_with_diagnostics(buffer, Point::new(2, 10)..Point::new(3, 0)),
6947 [
6948 (" }".to_string(), Some(DiagnosticSeverity::WARNING)),
6949 ("\n".to_string(), None),
6950 ]
6951 );
6952 });
6953
6954 // Keep editing the buffer and ensure disk-based diagnostics get translated according to the
6955 // changes since the last save.
6956 buffer.update(cx, |buffer, cx| {
6957 buffer.edit([(Point::new(2, 0)..Point::new(2, 0), " ")], cx);
6958 buffer.edit([(Point::new(2, 8)..Point::new(2, 10), "(x: usize)")], cx);
6959 buffer.edit([(Point::new(3, 10)..Point::new(3, 10), "xxx")], cx);
6960 });
6961 let change_notification_2 = fake_server
6962 .receive_notification::<lsp::notification::DidChangeTextDocument>()
6963 .await;
6964 assert!(
6965 change_notification_2.text_document.version
6966 > change_notification_1.text_document.version
6967 );
6968
6969 // Handle out-of-order diagnostics
6970 fake_server.notify::<lsp::notification::PublishDiagnostics>(
6971 lsp::PublishDiagnosticsParams {
6972 uri: lsp::Url::from_file_path("/dir/a.rs").unwrap(),
6973 version: Some(change_notification_2.text_document.version),
6974 diagnostics: vec![
6975 lsp::Diagnostic {
6976 range: lsp::Range::new(lsp::Position::new(1, 9), lsp::Position::new(1, 11)),
6977 severity: Some(DiagnosticSeverity::ERROR),
6978 message: "undefined variable 'BB'".to_string(),
6979 source: Some("disk".to_string()),
6980 ..Default::default()
6981 },
6982 lsp::Diagnostic {
6983 range: lsp::Range::new(lsp::Position::new(0, 9), lsp::Position::new(0, 10)),
6984 severity: Some(DiagnosticSeverity::WARNING),
6985 message: "undefined variable 'A'".to_string(),
6986 source: Some("disk".to_string()),
6987 ..Default::default()
6988 },
6989 ],
6990 },
6991 );
6992
6993 buffer.next_notification(cx).await;
6994 buffer.read_with(cx, |buffer, _| {
6995 assert_eq!(
6996 buffer
6997 .snapshot()
6998 .diagnostics_in_range::<_, Point>(0..buffer.len(), false)
6999 .collect::<Vec<_>>(),
7000 &[
7001 DiagnosticEntry {
7002 range: Point::new(2, 21)..Point::new(2, 22),
7003 diagnostic: Diagnostic {
7004 severity: DiagnosticSeverity::WARNING,
7005 message: "undefined variable 'A'".to_string(),
7006 is_disk_based: true,
7007 group_id: 6,
7008 is_primary: true,
7009 ..Default::default()
7010 }
7011 },
7012 DiagnosticEntry {
7013 range: Point::new(3, 9)..Point::new(3, 14),
7014 diagnostic: Diagnostic {
7015 severity: DiagnosticSeverity::ERROR,
7016 message: "undefined variable 'BB'".to_string(),
7017 is_disk_based: true,
7018 group_id: 5,
7019 is_primary: true,
7020 ..Default::default()
7021 },
7022 }
7023 ]
7024 );
7025 });
7026 }
7027
7028 #[gpui::test]
7029 async fn test_empty_diagnostic_ranges(cx: &mut gpui::TestAppContext) {
7030 cx.foreground().forbid_parking();
7031
7032 let text = concat!(
7033 "let one = ;\n", //
7034 "let two = \n",
7035 "let three = 3;\n",
7036 );
7037
7038 let fs = FakeFs::new(cx.background());
7039 fs.insert_tree("/dir", json!({ "a.rs": text })).await;
7040
7041 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
7042 let buffer = project
7043 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
7044 .await
7045 .unwrap();
7046
7047 project.update(cx, |project, cx| {
7048 project
7049 .update_buffer_diagnostics(
7050 &buffer,
7051 vec![
7052 DiagnosticEntry {
7053 range: PointUtf16::new(0, 10)..PointUtf16::new(0, 10),
7054 diagnostic: Diagnostic {
7055 severity: DiagnosticSeverity::ERROR,
7056 message: "syntax error 1".to_string(),
7057 ..Default::default()
7058 },
7059 },
7060 DiagnosticEntry {
7061 range: PointUtf16::new(1, 10)..PointUtf16::new(1, 10),
7062 diagnostic: Diagnostic {
7063 severity: DiagnosticSeverity::ERROR,
7064 message: "syntax error 2".to_string(),
7065 ..Default::default()
7066 },
7067 },
7068 ],
7069 None,
7070 cx,
7071 )
7072 .unwrap();
7073 });
7074
7075 // An empty range is extended forward to include the following character.
7076 // At the end of a line, an empty range is extended backward to include
7077 // the preceding character.
7078 buffer.read_with(cx, |buffer, _| {
7079 let chunks = chunks_with_diagnostics(&buffer, 0..buffer.len());
7080 assert_eq!(
7081 chunks
7082 .iter()
7083 .map(|(s, d)| (s.as_str(), *d))
7084 .collect::<Vec<_>>(),
7085 &[
7086 ("let one = ", None),
7087 (";", Some(DiagnosticSeverity::ERROR)),
7088 ("\nlet two =", None),
7089 (" ", Some(DiagnosticSeverity::ERROR)),
7090 ("\nlet three = 3;\n", None)
7091 ]
7092 );
7093 });
7094 }
7095
7096 #[gpui::test]
7097 async fn test_edits_from_lsp_with_past_version(cx: &mut gpui::TestAppContext) {
7098 cx.foreground().forbid_parking();
7099
7100 let mut language = Language::new(
7101 LanguageConfig {
7102 name: "Rust".into(),
7103 path_suffixes: vec!["rs".to_string()],
7104 ..Default::default()
7105 },
7106 Some(tree_sitter_rust::language()),
7107 );
7108 let mut fake_servers = language.set_fake_lsp_adapter(Default::default());
7109
7110 let text = "
7111 fn a() {
7112 f1();
7113 }
7114 fn b() {
7115 f2();
7116 }
7117 fn c() {
7118 f3();
7119 }
7120 "
7121 .unindent();
7122
7123 let fs = FakeFs::new(cx.background());
7124 fs.insert_tree(
7125 "/dir",
7126 json!({
7127 "a.rs": text.clone(),
7128 }),
7129 )
7130 .await;
7131
7132 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
7133 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
7134 let buffer = project
7135 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
7136 .await
7137 .unwrap();
7138
7139 let mut fake_server = fake_servers.next().await.unwrap();
7140 let lsp_document_version = fake_server
7141 .receive_notification::<lsp::notification::DidOpenTextDocument>()
7142 .await
7143 .text_document
7144 .version;
7145
7146 // Simulate editing the buffer after the language server computes some edits.
7147 buffer.update(cx, |buffer, cx| {
7148 buffer.edit(
7149 [(
7150 Point::new(0, 0)..Point::new(0, 0),
7151 "// above first function\n",
7152 )],
7153 cx,
7154 );
7155 buffer.edit(
7156 [(
7157 Point::new(2, 0)..Point::new(2, 0),
7158 " // inside first function\n",
7159 )],
7160 cx,
7161 );
7162 buffer.edit(
7163 [(
7164 Point::new(6, 4)..Point::new(6, 4),
7165 "// inside second function ",
7166 )],
7167 cx,
7168 );
7169
7170 assert_eq!(
7171 buffer.text(),
7172 "
7173 // above first function
7174 fn a() {
7175 // inside first function
7176 f1();
7177 }
7178 fn b() {
7179 // inside second function f2();
7180 }
7181 fn c() {
7182 f3();
7183 }
7184 "
7185 .unindent()
7186 );
7187 });
7188
7189 let edits = project
7190 .update(cx, |project, cx| {
7191 project.edits_from_lsp(
7192 &buffer,
7193 vec![
7194 // replace body of first function
7195 lsp::TextEdit {
7196 range: lsp::Range::new(
7197 lsp::Position::new(0, 0),
7198 lsp::Position::new(3, 0),
7199 ),
7200 new_text: "
7201 fn a() {
7202 f10();
7203 }
7204 "
7205 .unindent(),
7206 },
7207 // edit inside second function
7208 lsp::TextEdit {
7209 range: lsp::Range::new(
7210 lsp::Position::new(4, 6),
7211 lsp::Position::new(4, 6),
7212 ),
7213 new_text: "00".into(),
7214 },
7215 // edit inside third function via two distinct edits
7216 lsp::TextEdit {
7217 range: lsp::Range::new(
7218 lsp::Position::new(7, 5),
7219 lsp::Position::new(7, 5),
7220 ),
7221 new_text: "4000".into(),
7222 },
7223 lsp::TextEdit {
7224 range: lsp::Range::new(
7225 lsp::Position::new(7, 5),
7226 lsp::Position::new(7, 6),
7227 ),
7228 new_text: "".into(),
7229 },
7230 ],
7231 Some(lsp_document_version),
7232 cx,
7233 )
7234 })
7235 .await
7236 .unwrap();
7237
7238 buffer.update(cx, |buffer, cx| {
7239 for (range, new_text) in edits {
7240 buffer.edit([(range, new_text)], cx);
7241 }
7242 assert_eq!(
7243 buffer.text(),
7244 "
7245 // above first function
7246 fn a() {
7247 // inside first function
7248 f10();
7249 }
7250 fn b() {
7251 // inside second function f200();
7252 }
7253 fn c() {
7254 f4000();
7255 }
7256 "
7257 .unindent()
7258 );
7259 });
7260 }
7261
7262 #[gpui::test]
7263 async fn test_edits_from_lsp_with_edits_on_adjacent_lines(cx: &mut gpui::TestAppContext) {
7264 cx.foreground().forbid_parking();
7265
7266 let text = "
7267 use a::b;
7268 use a::c;
7269
7270 fn f() {
7271 b();
7272 c();
7273 }
7274 "
7275 .unindent();
7276
7277 let fs = FakeFs::new(cx.background());
7278 fs.insert_tree(
7279 "/dir",
7280 json!({
7281 "a.rs": text.clone(),
7282 }),
7283 )
7284 .await;
7285
7286 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
7287 let buffer = project
7288 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
7289 .await
7290 .unwrap();
7291
7292 // Simulate the language server sending us a small edit in the form of a very large diff.
7293 // Rust-analyzer does this when performing a merge-imports code action.
7294 let edits = project
7295 .update(cx, |project, cx| {
7296 project.edits_from_lsp(
7297 &buffer,
7298 [
7299 // Replace the first use statement without editing the semicolon.
7300 lsp::TextEdit {
7301 range: lsp::Range::new(
7302 lsp::Position::new(0, 4),
7303 lsp::Position::new(0, 8),
7304 ),
7305 new_text: "a::{b, c}".into(),
7306 },
7307 // Reinsert the remainder of the file between the semicolon and the final
7308 // newline of the file.
7309 lsp::TextEdit {
7310 range: lsp::Range::new(
7311 lsp::Position::new(0, 9),
7312 lsp::Position::new(0, 9),
7313 ),
7314 new_text: "\n\n".into(),
7315 },
7316 lsp::TextEdit {
7317 range: lsp::Range::new(
7318 lsp::Position::new(0, 9),
7319 lsp::Position::new(0, 9),
7320 ),
7321 new_text: "
7322 fn f() {
7323 b();
7324 c();
7325 }"
7326 .unindent(),
7327 },
7328 // Delete everything after the first newline of the file.
7329 lsp::TextEdit {
7330 range: lsp::Range::new(
7331 lsp::Position::new(1, 0),
7332 lsp::Position::new(7, 0),
7333 ),
7334 new_text: "".into(),
7335 },
7336 ],
7337 None,
7338 cx,
7339 )
7340 })
7341 .await
7342 .unwrap();
7343
7344 buffer.update(cx, |buffer, cx| {
7345 let edits = edits
7346 .into_iter()
7347 .map(|(range, text)| {
7348 (
7349 range.start.to_point(&buffer)..range.end.to_point(&buffer),
7350 text,
7351 )
7352 })
7353 .collect::<Vec<_>>();
7354
7355 assert_eq!(
7356 edits,
7357 [
7358 (Point::new(0, 4)..Point::new(0, 8), "a::{b, c}".into()),
7359 (Point::new(1, 0)..Point::new(2, 0), "".into())
7360 ]
7361 );
7362
7363 for (range, new_text) in edits {
7364 buffer.edit([(range, new_text)], cx);
7365 }
7366 assert_eq!(
7367 buffer.text(),
7368 "
7369 use a::{b, c};
7370
7371 fn f() {
7372 b();
7373 c();
7374 }
7375 "
7376 .unindent()
7377 );
7378 });
7379 }
7380
7381 #[gpui::test]
7382 async fn test_invalid_edits_from_lsp(cx: &mut gpui::TestAppContext) {
7383 cx.foreground().forbid_parking();
7384
7385 let text = "
7386 use a::b;
7387 use a::c;
7388
7389 fn f() {
7390 b();
7391 c();
7392 }
7393 "
7394 .unindent();
7395
7396 let fs = FakeFs::new(cx.background());
7397 fs.insert_tree(
7398 "/dir",
7399 json!({
7400 "a.rs": text.clone(),
7401 }),
7402 )
7403 .await;
7404
7405 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
7406 let buffer = project
7407 .update(cx, |project, cx| project.open_local_buffer("/dir/a.rs", cx))
7408 .await
7409 .unwrap();
7410
7411 // Simulate the language server sending us edits in a non-ordered fashion,
7412 // with ranges sometimes being inverted.
7413 let edits = project
7414 .update(cx, |project, cx| {
7415 project.edits_from_lsp(
7416 &buffer,
7417 [
7418 lsp::TextEdit {
7419 range: lsp::Range::new(
7420 lsp::Position::new(0, 9),
7421 lsp::Position::new(0, 9),
7422 ),
7423 new_text: "\n\n".into(),
7424 },
7425 lsp::TextEdit {
7426 range: lsp::Range::new(
7427 lsp::Position::new(0, 8),
7428 lsp::Position::new(0, 4),
7429 ),
7430 new_text: "a::{b, c}".into(),
7431 },
7432 lsp::TextEdit {
7433 range: lsp::Range::new(
7434 lsp::Position::new(1, 0),
7435 lsp::Position::new(7, 0),
7436 ),
7437 new_text: "".into(),
7438 },
7439 lsp::TextEdit {
7440 range: lsp::Range::new(
7441 lsp::Position::new(0, 9),
7442 lsp::Position::new(0, 9),
7443 ),
7444 new_text: "
7445 fn f() {
7446 b();
7447 c();
7448 }"
7449 .unindent(),
7450 },
7451 ],
7452 None,
7453 cx,
7454 )
7455 })
7456 .await
7457 .unwrap();
7458
7459 buffer.update(cx, |buffer, cx| {
7460 let edits = edits
7461 .into_iter()
7462 .map(|(range, text)| {
7463 (
7464 range.start.to_point(&buffer)..range.end.to_point(&buffer),
7465 text,
7466 )
7467 })
7468 .collect::<Vec<_>>();
7469
7470 assert_eq!(
7471 edits,
7472 [
7473 (Point::new(0, 4)..Point::new(0, 8), "a::{b, c}".into()),
7474 (Point::new(1, 0)..Point::new(2, 0), "".into())
7475 ]
7476 );
7477
7478 for (range, new_text) in edits {
7479 buffer.edit([(range, new_text)], cx);
7480 }
7481 assert_eq!(
7482 buffer.text(),
7483 "
7484 use a::{b, c};
7485
7486 fn f() {
7487 b();
7488 c();
7489 }
7490 "
7491 .unindent()
7492 );
7493 });
7494 }
7495
7496 fn chunks_with_diagnostics<T: ToOffset + ToPoint>(
7497 buffer: &Buffer,
7498 range: Range<T>,
7499 ) -> Vec<(String, Option<DiagnosticSeverity>)> {
7500 let mut chunks: Vec<(String, Option<DiagnosticSeverity>)> = Vec::new();
7501 for chunk in buffer.snapshot().chunks(range, true) {
7502 if chunks.last().map_or(false, |prev_chunk| {
7503 prev_chunk.1 == chunk.diagnostic_severity
7504 }) {
7505 chunks.last_mut().unwrap().0.push_str(chunk.text);
7506 } else {
7507 chunks.push((chunk.text.to_string(), chunk.diagnostic_severity));
7508 }
7509 }
7510 chunks
7511 }
7512
7513 #[gpui::test]
7514 async fn test_search_worktree_without_files(cx: &mut gpui::TestAppContext) {
7515 let dir = temp_tree(json!({
7516 "root": {
7517 "dir1": {},
7518 "dir2": {
7519 "dir3": {}
7520 }
7521 }
7522 }));
7523
7524 let project = Project::test(Arc::new(RealFs), [dir.path()], cx).await;
7525 let cancel_flag = Default::default();
7526 let results = project
7527 .read_with(cx, |project, cx| {
7528 project.match_paths("dir", false, false, 10, &cancel_flag, cx)
7529 })
7530 .await;
7531
7532 assert!(results.is_empty());
7533 }
7534
7535 #[gpui::test(iterations = 10)]
7536 async fn test_definition(cx: &mut gpui::TestAppContext) {
7537 let mut language = Language::new(
7538 LanguageConfig {
7539 name: "Rust".into(),
7540 path_suffixes: vec!["rs".to_string()],
7541 ..Default::default()
7542 },
7543 Some(tree_sitter_rust::language()),
7544 );
7545 let mut fake_servers = language.set_fake_lsp_adapter(Default::default());
7546
7547 let fs = FakeFs::new(cx.background());
7548 fs.insert_tree(
7549 "/dir",
7550 json!({
7551 "a.rs": "const fn a() { A }",
7552 "b.rs": "const y: i32 = crate::a()",
7553 }),
7554 )
7555 .await;
7556
7557 let project = Project::test(fs, ["/dir/b.rs".as_ref()], cx).await;
7558 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
7559
7560 let buffer = project
7561 .update(cx, |project, cx| project.open_local_buffer("/dir/b.rs", cx))
7562 .await
7563 .unwrap();
7564
7565 let fake_server = fake_servers.next().await.unwrap();
7566 fake_server.handle_request::<lsp::request::GotoDefinition, _, _>(|params, _| async move {
7567 let params = params.text_document_position_params;
7568 assert_eq!(
7569 params.text_document.uri.to_file_path().unwrap(),
7570 Path::new("/dir/b.rs"),
7571 );
7572 assert_eq!(params.position, lsp::Position::new(0, 22));
7573
7574 Ok(Some(lsp::GotoDefinitionResponse::Scalar(
7575 lsp::Location::new(
7576 lsp::Url::from_file_path("/dir/a.rs").unwrap(),
7577 lsp::Range::new(lsp::Position::new(0, 9), lsp::Position::new(0, 10)),
7578 ),
7579 )))
7580 });
7581
7582 let mut definitions = project
7583 .update(cx, |project, cx| project.definition(&buffer, 22, cx))
7584 .await
7585 .unwrap();
7586
7587 assert_eq!(definitions.len(), 1);
7588 let definition = definitions.pop().unwrap();
7589 cx.update(|cx| {
7590 let target_buffer = definition.target.buffer.read(cx);
7591 assert_eq!(
7592 target_buffer
7593 .file()
7594 .unwrap()
7595 .as_local()
7596 .unwrap()
7597 .abs_path(cx),
7598 Path::new("/dir/a.rs"),
7599 );
7600 assert_eq!(definition.target.range.to_offset(target_buffer), 9..10);
7601 assert_eq!(
7602 list_worktrees(&project, cx),
7603 [("/dir/b.rs".as_ref(), true), ("/dir/a.rs".as_ref(), false)]
7604 );
7605
7606 drop(definition);
7607 });
7608 cx.read(|cx| {
7609 assert_eq!(list_worktrees(&project, cx), [("/dir/b.rs".as_ref(), true)]);
7610 });
7611
7612 fn list_worktrees<'a>(
7613 project: &'a ModelHandle<Project>,
7614 cx: &'a AppContext,
7615 ) -> Vec<(&'a Path, bool)> {
7616 project
7617 .read(cx)
7618 .worktrees(cx)
7619 .map(|worktree| {
7620 let worktree = worktree.read(cx);
7621 (
7622 worktree.as_local().unwrap().abs_path().as_ref(),
7623 worktree.is_visible(),
7624 )
7625 })
7626 .collect::<Vec<_>>()
7627 }
7628 }
7629
7630 #[gpui::test]
7631 async fn test_completions_without_edit_ranges(cx: &mut gpui::TestAppContext) {
7632 let mut language = Language::new(
7633 LanguageConfig {
7634 name: "TypeScript".into(),
7635 path_suffixes: vec!["ts".to_string()],
7636 ..Default::default()
7637 },
7638 Some(tree_sitter_typescript::language_typescript()),
7639 );
7640 let mut fake_language_servers = language.set_fake_lsp_adapter(Default::default());
7641
7642 let fs = FakeFs::new(cx.background());
7643 fs.insert_tree(
7644 "/dir",
7645 json!({
7646 "a.ts": "",
7647 }),
7648 )
7649 .await;
7650
7651 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
7652 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
7653 let buffer = project
7654 .update(cx, |p, cx| p.open_local_buffer("/dir/a.ts", cx))
7655 .await
7656 .unwrap();
7657
7658 let fake_server = fake_language_servers.next().await.unwrap();
7659
7660 let text = "let a = b.fqn";
7661 buffer.update(cx, |buffer, cx| buffer.set_text(text, cx));
7662 let completions = project.update(cx, |project, cx| {
7663 project.completions(&buffer, text.len(), cx)
7664 });
7665
7666 fake_server
7667 .handle_request::<lsp::request::Completion, _, _>(|_, _| async move {
7668 Ok(Some(lsp::CompletionResponse::Array(vec![
7669 lsp::CompletionItem {
7670 label: "fullyQualifiedName?".into(),
7671 insert_text: Some("fullyQualifiedName".into()),
7672 ..Default::default()
7673 },
7674 ])))
7675 })
7676 .next()
7677 .await;
7678 let completions = completions.await.unwrap();
7679 let snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot());
7680 assert_eq!(completions.len(), 1);
7681 assert_eq!(completions[0].new_text, "fullyQualifiedName");
7682 assert_eq!(
7683 completions[0].old_range.to_offset(&snapshot),
7684 text.len() - 3..text.len()
7685 );
7686
7687 let text = "let a = \"atoms/cmp\"";
7688 buffer.update(cx, |buffer, cx| buffer.set_text(text, cx));
7689 let completions = project.update(cx, |project, cx| {
7690 project.completions(&buffer, text.len() - 1, cx)
7691 });
7692
7693 fake_server
7694 .handle_request::<lsp::request::Completion, _, _>(|_, _| async move {
7695 Ok(Some(lsp::CompletionResponse::Array(vec![
7696 lsp::CompletionItem {
7697 label: "component".into(),
7698 ..Default::default()
7699 },
7700 ])))
7701 })
7702 .next()
7703 .await;
7704 let completions = completions.await.unwrap();
7705 let snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot());
7706 assert_eq!(completions.len(), 1);
7707 assert_eq!(completions[0].new_text, "component");
7708 assert_eq!(
7709 completions[0].old_range.to_offset(&snapshot),
7710 text.len() - 4..text.len() - 1
7711 );
7712 }
7713
7714 #[gpui::test(iterations = 10)]
7715 async fn test_apply_code_actions_with_commands(cx: &mut gpui::TestAppContext) {
7716 let mut language = Language::new(
7717 LanguageConfig {
7718 name: "TypeScript".into(),
7719 path_suffixes: vec!["ts".to_string()],
7720 ..Default::default()
7721 },
7722 None,
7723 );
7724 let mut fake_language_servers = language.set_fake_lsp_adapter(Default::default());
7725
7726 let fs = FakeFs::new(cx.background());
7727 fs.insert_tree(
7728 "/dir",
7729 json!({
7730 "a.ts": "a",
7731 }),
7732 )
7733 .await;
7734
7735 let project = Project::test(fs, ["/dir".as_ref()], cx).await;
7736 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
7737 let buffer = project
7738 .update(cx, |p, cx| p.open_local_buffer("/dir/a.ts", cx))
7739 .await
7740 .unwrap();
7741
7742 let fake_server = fake_language_servers.next().await.unwrap();
7743
7744 // Language server returns code actions that contain commands, and not edits.
7745 let actions = project.update(cx, |project, cx| project.code_actions(&buffer, 0..0, cx));
7746 fake_server
7747 .handle_request::<lsp::request::CodeActionRequest, _, _>(|_, _| async move {
7748 Ok(Some(vec![
7749 lsp::CodeActionOrCommand::CodeAction(lsp::CodeAction {
7750 title: "The code action".into(),
7751 command: Some(lsp::Command {
7752 title: "The command".into(),
7753 command: "_the/command".into(),
7754 arguments: Some(vec![json!("the-argument")]),
7755 }),
7756 ..Default::default()
7757 }),
7758 lsp::CodeActionOrCommand::CodeAction(lsp::CodeAction {
7759 title: "two".into(),
7760 ..Default::default()
7761 }),
7762 ]))
7763 })
7764 .next()
7765 .await;
7766
7767 let action = actions.await.unwrap()[0].clone();
7768 let apply = project.update(cx, |project, cx| {
7769 project.apply_code_action(buffer.clone(), action, true, cx)
7770 });
7771
7772 // Resolving the code action does not populate its edits. In absence of
7773 // edits, we must execute the given command.
7774 fake_server.handle_request::<lsp::request::CodeActionResolveRequest, _, _>(
7775 |action, _| async move { Ok(action) },
7776 );
7777
7778 // While executing the command, the language server sends the editor
7779 // a `workspaceEdit` request.
7780 fake_server
7781 .handle_request::<lsp::request::ExecuteCommand, _, _>({
7782 let fake = fake_server.clone();
7783 move |params, _| {
7784 assert_eq!(params.command, "_the/command");
7785 let fake = fake.clone();
7786 async move {
7787 fake.server
7788 .request::<lsp::request::ApplyWorkspaceEdit>(
7789 lsp::ApplyWorkspaceEditParams {
7790 label: None,
7791 edit: lsp::WorkspaceEdit {
7792 changes: Some(
7793 [(
7794 lsp::Url::from_file_path("/dir/a.ts").unwrap(),
7795 vec![lsp::TextEdit {
7796 range: lsp::Range::new(
7797 lsp::Position::new(0, 0),
7798 lsp::Position::new(0, 0),
7799 ),
7800 new_text: "X".into(),
7801 }],
7802 )]
7803 .into_iter()
7804 .collect(),
7805 ),
7806 ..Default::default()
7807 },
7808 },
7809 )
7810 .await
7811 .unwrap();
7812 Ok(Some(json!(null)))
7813 }
7814 }
7815 })
7816 .next()
7817 .await;
7818
7819 // Applying the code action returns a project transaction containing the edits
7820 // sent by the language server in its `workspaceEdit` request.
7821 let transaction = apply.await.unwrap();
7822 assert!(transaction.0.contains_key(&buffer));
7823 buffer.update(cx, |buffer, cx| {
7824 assert_eq!(buffer.text(), "Xa");
7825 buffer.undo(cx);
7826 assert_eq!(buffer.text(), "a");
7827 });
7828 }
7829
7830 #[gpui::test]
7831 async fn test_save_file(cx: &mut gpui::TestAppContext) {
7832 let fs = FakeFs::new(cx.background());
7833 fs.insert_tree(
7834 "/dir",
7835 json!({
7836 "file1": "the old contents",
7837 }),
7838 )
7839 .await;
7840
7841 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
7842 let buffer = project
7843 .update(cx, |p, cx| p.open_local_buffer("/dir/file1", cx))
7844 .await
7845 .unwrap();
7846 buffer
7847 .update(cx, |buffer, cx| {
7848 assert_eq!(buffer.text(), "the old contents");
7849 buffer.edit([(0..0, "a line of text.\n".repeat(10 * 1024))], cx);
7850 buffer.save(cx)
7851 })
7852 .await
7853 .unwrap();
7854
7855 let new_text = fs.load(Path::new("/dir/file1")).await.unwrap();
7856 assert_eq!(new_text, buffer.read_with(cx, |buffer, _| buffer.text()));
7857 }
7858
7859 #[gpui::test]
7860 async fn test_save_in_single_file_worktree(cx: &mut gpui::TestAppContext) {
7861 let fs = FakeFs::new(cx.background());
7862 fs.insert_tree(
7863 "/dir",
7864 json!({
7865 "file1": "the old contents",
7866 }),
7867 )
7868 .await;
7869
7870 let project = Project::test(fs.clone(), ["/dir/file1".as_ref()], cx).await;
7871 let buffer = project
7872 .update(cx, |p, cx| p.open_local_buffer("/dir/file1", cx))
7873 .await
7874 .unwrap();
7875 buffer
7876 .update(cx, |buffer, cx| {
7877 buffer.edit([(0..0, "a line of text.\n".repeat(10 * 1024))], cx);
7878 buffer.save(cx)
7879 })
7880 .await
7881 .unwrap();
7882
7883 let new_text = fs.load(Path::new("/dir/file1")).await.unwrap();
7884 assert_eq!(new_text, buffer.read_with(cx, |buffer, _| buffer.text()));
7885 }
7886
7887 #[gpui::test]
7888 async fn test_save_as(cx: &mut gpui::TestAppContext) {
7889 let fs = FakeFs::new(cx.background());
7890 fs.insert_tree("/dir", json!({})).await;
7891
7892 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
7893 let buffer = project.update(cx, |project, cx| {
7894 project.create_buffer("", None, cx).unwrap()
7895 });
7896 buffer.update(cx, |buffer, cx| {
7897 buffer.edit([(0..0, "abc")], cx);
7898 assert!(buffer.is_dirty());
7899 assert!(!buffer.has_conflict());
7900 });
7901 project
7902 .update(cx, |project, cx| {
7903 project.save_buffer_as(buffer.clone(), "/dir/file1".into(), cx)
7904 })
7905 .await
7906 .unwrap();
7907 assert_eq!(fs.load(Path::new("/dir/file1")).await.unwrap(), "abc");
7908 buffer.read_with(cx, |buffer, cx| {
7909 assert_eq!(buffer.file().unwrap().full_path(cx), Path::new("dir/file1"));
7910 assert!(!buffer.is_dirty());
7911 assert!(!buffer.has_conflict());
7912 });
7913
7914 let opened_buffer = project
7915 .update(cx, |project, cx| {
7916 project.open_local_buffer("/dir/file1", cx)
7917 })
7918 .await
7919 .unwrap();
7920 assert_eq!(opened_buffer, buffer);
7921 }
7922
7923 #[gpui::test(retries = 5)]
7924 async fn test_rescan_and_remote_updates(cx: &mut gpui::TestAppContext) {
7925 let dir = temp_tree(json!({
7926 "a": {
7927 "file1": "",
7928 "file2": "",
7929 "file3": "",
7930 },
7931 "b": {
7932 "c": {
7933 "file4": "",
7934 "file5": "",
7935 }
7936 }
7937 }));
7938
7939 let project = Project::test(Arc::new(RealFs), [dir.path()], cx).await;
7940 let rpc = project.read_with(cx, |p, _| p.client.clone());
7941
7942 let buffer_for_path = |path: &'static str, cx: &mut gpui::TestAppContext| {
7943 let buffer = project.update(cx, |p, cx| p.open_local_buffer(dir.path().join(path), cx));
7944 async move { buffer.await.unwrap() }
7945 };
7946 let id_for_path = |path: &'static str, cx: &gpui::TestAppContext| {
7947 project.read_with(cx, |project, cx| {
7948 let tree = project.worktrees(cx).next().unwrap();
7949 tree.read(cx)
7950 .entry_for_path(path)
7951 .expect(&format!("no entry for path {}", path))
7952 .id
7953 })
7954 };
7955
7956 let buffer2 = buffer_for_path("a/file2", cx).await;
7957 let buffer3 = buffer_for_path("a/file3", cx).await;
7958 let buffer4 = buffer_for_path("b/c/file4", cx).await;
7959 let buffer5 = buffer_for_path("b/c/file5", cx).await;
7960
7961 let file2_id = id_for_path("a/file2", &cx);
7962 let file3_id = id_for_path("a/file3", &cx);
7963 let file4_id = id_for_path("b/c/file4", &cx);
7964
7965 // Create a remote copy of this worktree.
7966 let tree = project.read_with(cx, |project, cx| project.worktrees(cx).next().unwrap());
7967 let initial_snapshot = tree.read_with(cx, |tree, _| tree.as_local().unwrap().snapshot());
7968 let (remote, load_task) = cx.update(|cx| {
7969 Worktree::remote(
7970 1,
7971 1,
7972 initial_snapshot.to_proto(&Default::default(), true),
7973 rpc.clone(),
7974 cx,
7975 )
7976 });
7977 // tree
7978 load_task.await;
7979
7980 cx.read(|cx| {
7981 assert!(!buffer2.read(cx).is_dirty());
7982 assert!(!buffer3.read(cx).is_dirty());
7983 assert!(!buffer4.read(cx).is_dirty());
7984 assert!(!buffer5.read(cx).is_dirty());
7985 });
7986
7987 // Rename and delete files and directories.
7988 tree.flush_fs_events(&cx).await;
7989 std::fs::rename(dir.path().join("a/file3"), dir.path().join("b/c/file3")).unwrap();
7990 std::fs::remove_file(dir.path().join("b/c/file5")).unwrap();
7991 std::fs::rename(dir.path().join("b/c"), dir.path().join("d")).unwrap();
7992 std::fs::rename(dir.path().join("a/file2"), dir.path().join("a/file2.new")).unwrap();
7993 tree.flush_fs_events(&cx).await;
7994
7995 let expected_paths = vec![
7996 "a",
7997 "a/file1",
7998 "a/file2.new",
7999 "b",
8000 "d",
8001 "d/file3",
8002 "d/file4",
8003 ];
8004
8005 cx.read(|app| {
8006 assert_eq!(
8007 tree.read(app)
8008 .paths()
8009 .map(|p| p.to_str().unwrap())
8010 .collect::<Vec<_>>(),
8011 expected_paths
8012 );
8013
8014 assert_eq!(id_for_path("a/file2.new", &cx), file2_id);
8015 assert_eq!(id_for_path("d/file3", &cx), file3_id);
8016 assert_eq!(id_for_path("d/file4", &cx), file4_id);
8017
8018 assert_eq!(
8019 buffer2.read(app).file().unwrap().path().as_ref(),
8020 Path::new("a/file2.new")
8021 );
8022 assert_eq!(
8023 buffer3.read(app).file().unwrap().path().as_ref(),
8024 Path::new("d/file3")
8025 );
8026 assert_eq!(
8027 buffer4.read(app).file().unwrap().path().as_ref(),
8028 Path::new("d/file4")
8029 );
8030 assert_eq!(
8031 buffer5.read(app).file().unwrap().path().as_ref(),
8032 Path::new("b/c/file5")
8033 );
8034
8035 assert!(!buffer2.read(app).file().unwrap().is_deleted());
8036 assert!(!buffer3.read(app).file().unwrap().is_deleted());
8037 assert!(!buffer4.read(app).file().unwrap().is_deleted());
8038 assert!(buffer5.read(app).file().unwrap().is_deleted());
8039 });
8040
8041 // Update the remote worktree. Check that it becomes consistent with the
8042 // local worktree.
8043 remote.update(cx, |remote, cx| {
8044 let update_message = tree.read(cx).as_local().unwrap().snapshot().build_update(
8045 &initial_snapshot,
8046 1,
8047 1,
8048 true,
8049 );
8050 remote
8051 .as_remote_mut()
8052 .unwrap()
8053 .snapshot
8054 .apply_remote_update(update_message)
8055 .unwrap();
8056
8057 assert_eq!(
8058 remote
8059 .paths()
8060 .map(|p| p.to_str().unwrap())
8061 .collect::<Vec<_>>(),
8062 expected_paths
8063 );
8064 });
8065 }
8066
8067 #[gpui::test]
8068 async fn test_buffer_deduping(cx: &mut gpui::TestAppContext) {
8069 let fs = FakeFs::new(cx.background());
8070 fs.insert_tree(
8071 "/dir",
8072 json!({
8073 "a.txt": "a-contents",
8074 "b.txt": "b-contents",
8075 }),
8076 )
8077 .await;
8078
8079 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
8080
8081 // Spawn multiple tasks to open paths, repeating some paths.
8082 let (buffer_a_1, buffer_b, buffer_a_2) = project.update(cx, |p, cx| {
8083 (
8084 p.open_local_buffer("/dir/a.txt", cx),
8085 p.open_local_buffer("/dir/b.txt", cx),
8086 p.open_local_buffer("/dir/a.txt", cx),
8087 )
8088 });
8089
8090 let buffer_a_1 = buffer_a_1.await.unwrap();
8091 let buffer_a_2 = buffer_a_2.await.unwrap();
8092 let buffer_b = buffer_b.await.unwrap();
8093 assert_eq!(buffer_a_1.read_with(cx, |b, _| b.text()), "a-contents");
8094 assert_eq!(buffer_b.read_with(cx, |b, _| b.text()), "b-contents");
8095
8096 // There is only one buffer per path.
8097 let buffer_a_id = buffer_a_1.id();
8098 assert_eq!(buffer_a_2.id(), buffer_a_id);
8099
8100 // Open the same path again while it is still open.
8101 drop(buffer_a_1);
8102 let buffer_a_3 = project
8103 .update(cx, |p, cx| p.open_local_buffer("/dir/a.txt", cx))
8104 .await
8105 .unwrap();
8106
8107 // There's still only one buffer per path.
8108 assert_eq!(buffer_a_3.id(), buffer_a_id);
8109 }
8110
8111 #[gpui::test]
8112 async fn test_buffer_is_dirty(cx: &mut gpui::TestAppContext) {
8113 let fs = FakeFs::new(cx.background());
8114 fs.insert_tree(
8115 "/dir",
8116 json!({
8117 "file1": "abc",
8118 "file2": "def",
8119 "file3": "ghi",
8120 }),
8121 )
8122 .await;
8123
8124 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
8125
8126 let buffer1 = project
8127 .update(cx, |p, cx| p.open_local_buffer("/dir/file1", cx))
8128 .await
8129 .unwrap();
8130 let events = Rc::new(RefCell::new(Vec::new()));
8131
8132 // initially, the buffer isn't dirty.
8133 buffer1.update(cx, |buffer, cx| {
8134 cx.subscribe(&buffer1, {
8135 let events = events.clone();
8136 move |_, _, event, _| match event {
8137 BufferEvent::Operation(_) => {}
8138 _ => events.borrow_mut().push(event.clone()),
8139 }
8140 })
8141 .detach();
8142
8143 assert!(!buffer.is_dirty());
8144 assert!(events.borrow().is_empty());
8145
8146 buffer.edit([(1..2, "")], cx);
8147 });
8148
8149 // after the first edit, the buffer is dirty, and emits a dirtied event.
8150 buffer1.update(cx, |buffer, cx| {
8151 assert!(buffer.text() == "ac");
8152 assert!(buffer.is_dirty());
8153 assert_eq!(
8154 *events.borrow(),
8155 &[language::Event::Edited, language::Event::DirtyChanged]
8156 );
8157 events.borrow_mut().clear();
8158 buffer.did_save(
8159 buffer.version(),
8160 buffer.as_rope().fingerprint(),
8161 buffer.file().unwrap().mtime(),
8162 None,
8163 cx,
8164 );
8165 });
8166
8167 // after saving, the buffer is not dirty, and emits a saved event.
8168 buffer1.update(cx, |buffer, cx| {
8169 assert!(!buffer.is_dirty());
8170 assert_eq!(*events.borrow(), &[language::Event::Saved]);
8171 events.borrow_mut().clear();
8172
8173 buffer.edit([(1..1, "B")], cx);
8174 buffer.edit([(2..2, "D")], cx);
8175 });
8176
8177 // after editing again, the buffer is dirty, and emits another dirty event.
8178 buffer1.update(cx, |buffer, cx| {
8179 assert!(buffer.text() == "aBDc");
8180 assert!(buffer.is_dirty());
8181 assert_eq!(
8182 *events.borrow(),
8183 &[
8184 language::Event::Edited,
8185 language::Event::DirtyChanged,
8186 language::Event::Edited,
8187 ],
8188 );
8189 events.borrow_mut().clear();
8190
8191 // After restoring the buffer to its previously-saved state,
8192 // the buffer is not considered dirty anymore.
8193 buffer.edit([(1..3, "")], cx);
8194 assert!(buffer.text() == "ac");
8195 assert!(!buffer.is_dirty());
8196 });
8197
8198 assert_eq!(
8199 *events.borrow(),
8200 &[language::Event::Edited, language::Event::DirtyChanged]
8201 );
8202
8203 // When a file is deleted, the buffer is considered dirty.
8204 let events = Rc::new(RefCell::new(Vec::new()));
8205 let buffer2 = project
8206 .update(cx, |p, cx| p.open_local_buffer("/dir/file2", cx))
8207 .await
8208 .unwrap();
8209 buffer2.update(cx, |_, cx| {
8210 cx.subscribe(&buffer2, {
8211 let events = events.clone();
8212 move |_, _, event, _| events.borrow_mut().push(event.clone())
8213 })
8214 .detach();
8215 });
8216
8217 fs.remove_file("/dir/file2".as_ref(), Default::default())
8218 .await
8219 .unwrap();
8220 buffer2.condition(&cx, |b, _| b.is_dirty()).await;
8221 assert_eq!(
8222 *events.borrow(),
8223 &[
8224 language::Event::DirtyChanged,
8225 language::Event::FileHandleChanged
8226 ]
8227 );
8228
8229 // When a file is already dirty when deleted, we don't emit a Dirtied event.
8230 let events = Rc::new(RefCell::new(Vec::new()));
8231 let buffer3 = project
8232 .update(cx, |p, cx| p.open_local_buffer("/dir/file3", cx))
8233 .await
8234 .unwrap();
8235 buffer3.update(cx, |_, cx| {
8236 cx.subscribe(&buffer3, {
8237 let events = events.clone();
8238 move |_, _, event, _| events.borrow_mut().push(event.clone())
8239 })
8240 .detach();
8241 });
8242
8243 buffer3.update(cx, |buffer, cx| {
8244 buffer.edit([(0..0, "x")], cx);
8245 });
8246 events.borrow_mut().clear();
8247 fs.remove_file("/dir/file3".as_ref(), Default::default())
8248 .await
8249 .unwrap();
8250 buffer3
8251 .condition(&cx, |_, _| !events.borrow().is_empty())
8252 .await;
8253 assert_eq!(*events.borrow(), &[language::Event::FileHandleChanged]);
8254 cx.read(|cx| assert!(buffer3.read(cx).is_dirty()));
8255 }
8256
8257 #[gpui::test]
8258 async fn test_buffer_file_changes_on_disk(cx: &mut gpui::TestAppContext) {
8259 let initial_contents = "aaa\nbbbbb\nc\n";
8260 let fs = FakeFs::new(cx.background());
8261 fs.insert_tree(
8262 "/dir",
8263 json!({
8264 "the-file": initial_contents,
8265 }),
8266 )
8267 .await;
8268 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
8269 let buffer = project
8270 .update(cx, |p, cx| p.open_local_buffer("/dir/the-file", cx))
8271 .await
8272 .unwrap();
8273
8274 let anchors = (0..3)
8275 .map(|row| buffer.read_with(cx, |b, _| b.anchor_before(Point::new(row, 1))))
8276 .collect::<Vec<_>>();
8277
8278 // Change the file on disk, adding two new lines of text, and removing
8279 // one line.
8280 buffer.read_with(cx, |buffer, _| {
8281 assert!(!buffer.is_dirty());
8282 assert!(!buffer.has_conflict());
8283 });
8284 let new_contents = "AAAA\naaa\nBB\nbbbbb\n";
8285 fs.save("/dir/the-file".as_ref(), &new_contents.into())
8286 .await
8287 .unwrap();
8288
8289 // Because the buffer was not modified, it is reloaded from disk. Its
8290 // contents are edited according to the diff between the old and new
8291 // file contents.
8292 buffer
8293 .condition(&cx, |buffer, _| buffer.text() == new_contents)
8294 .await;
8295
8296 buffer.update(cx, |buffer, _| {
8297 assert_eq!(buffer.text(), new_contents);
8298 assert!(!buffer.is_dirty());
8299 assert!(!buffer.has_conflict());
8300
8301 let anchor_positions = anchors
8302 .iter()
8303 .map(|anchor| anchor.to_point(&*buffer))
8304 .collect::<Vec<_>>();
8305 assert_eq!(
8306 anchor_positions,
8307 [Point::new(1, 1), Point::new(3, 1), Point::new(4, 0)]
8308 );
8309 });
8310
8311 // Modify the buffer
8312 buffer.update(cx, |buffer, cx| {
8313 buffer.edit([(0..0, " ")], cx);
8314 assert!(buffer.is_dirty());
8315 assert!(!buffer.has_conflict());
8316 });
8317
8318 // Change the file on disk again, adding blank lines to the beginning.
8319 fs.save(
8320 "/dir/the-file".as_ref(),
8321 &"\n\n\nAAAA\naaa\nBB\nbbbbb\n".into(),
8322 )
8323 .await
8324 .unwrap();
8325
8326 // Because the buffer is modified, it doesn't reload from disk, but is
8327 // marked as having a conflict.
8328 buffer
8329 .condition(&cx, |buffer, _| buffer.has_conflict())
8330 .await;
8331 }
8332
8333 #[gpui::test]
8334 async fn test_grouped_diagnostics(cx: &mut gpui::TestAppContext) {
8335 cx.foreground().forbid_parking();
8336
8337 let fs = FakeFs::new(cx.background());
8338 fs.insert_tree(
8339 "/the-dir",
8340 json!({
8341 "a.rs": "
8342 fn foo(mut v: Vec<usize>) {
8343 for x in &v {
8344 v.push(1);
8345 }
8346 }
8347 "
8348 .unindent(),
8349 }),
8350 )
8351 .await;
8352
8353 let project = Project::test(fs.clone(), ["/the-dir".as_ref()], cx).await;
8354 let buffer = project
8355 .update(cx, |p, cx| p.open_local_buffer("/the-dir/a.rs", cx))
8356 .await
8357 .unwrap();
8358
8359 let buffer_uri = Url::from_file_path("/the-dir/a.rs").unwrap();
8360 let message = lsp::PublishDiagnosticsParams {
8361 uri: buffer_uri.clone(),
8362 diagnostics: vec![
8363 lsp::Diagnostic {
8364 range: lsp::Range::new(lsp::Position::new(1, 8), lsp::Position::new(1, 9)),
8365 severity: Some(DiagnosticSeverity::WARNING),
8366 message: "error 1".to_string(),
8367 related_information: Some(vec![lsp::DiagnosticRelatedInformation {
8368 location: lsp::Location {
8369 uri: buffer_uri.clone(),
8370 range: lsp::Range::new(
8371 lsp::Position::new(1, 8),
8372 lsp::Position::new(1, 9),
8373 ),
8374 },
8375 message: "error 1 hint 1".to_string(),
8376 }]),
8377 ..Default::default()
8378 },
8379 lsp::Diagnostic {
8380 range: lsp::Range::new(lsp::Position::new(1, 8), lsp::Position::new(1, 9)),
8381 severity: Some(DiagnosticSeverity::HINT),
8382 message: "error 1 hint 1".to_string(),
8383 related_information: Some(vec![lsp::DiagnosticRelatedInformation {
8384 location: lsp::Location {
8385 uri: buffer_uri.clone(),
8386 range: lsp::Range::new(
8387 lsp::Position::new(1, 8),
8388 lsp::Position::new(1, 9),
8389 ),
8390 },
8391 message: "original diagnostic".to_string(),
8392 }]),
8393 ..Default::default()
8394 },
8395 lsp::Diagnostic {
8396 range: lsp::Range::new(lsp::Position::new(2, 8), lsp::Position::new(2, 17)),
8397 severity: Some(DiagnosticSeverity::ERROR),
8398 message: "error 2".to_string(),
8399 related_information: Some(vec![
8400 lsp::DiagnosticRelatedInformation {
8401 location: lsp::Location {
8402 uri: buffer_uri.clone(),
8403 range: lsp::Range::new(
8404 lsp::Position::new(1, 13),
8405 lsp::Position::new(1, 15),
8406 ),
8407 },
8408 message: "error 2 hint 1".to_string(),
8409 },
8410 lsp::DiagnosticRelatedInformation {
8411 location: lsp::Location {
8412 uri: buffer_uri.clone(),
8413 range: lsp::Range::new(
8414 lsp::Position::new(1, 13),
8415 lsp::Position::new(1, 15),
8416 ),
8417 },
8418 message: "error 2 hint 2".to_string(),
8419 },
8420 ]),
8421 ..Default::default()
8422 },
8423 lsp::Diagnostic {
8424 range: lsp::Range::new(lsp::Position::new(1, 13), lsp::Position::new(1, 15)),
8425 severity: Some(DiagnosticSeverity::HINT),
8426 message: "error 2 hint 1".to_string(),
8427 related_information: Some(vec![lsp::DiagnosticRelatedInformation {
8428 location: lsp::Location {
8429 uri: buffer_uri.clone(),
8430 range: lsp::Range::new(
8431 lsp::Position::new(2, 8),
8432 lsp::Position::new(2, 17),
8433 ),
8434 },
8435 message: "original diagnostic".to_string(),
8436 }]),
8437 ..Default::default()
8438 },
8439 lsp::Diagnostic {
8440 range: lsp::Range::new(lsp::Position::new(1, 13), lsp::Position::new(1, 15)),
8441 severity: Some(DiagnosticSeverity::HINT),
8442 message: "error 2 hint 2".to_string(),
8443 related_information: Some(vec![lsp::DiagnosticRelatedInformation {
8444 location: lsp::Location {
8445 uri: buffer_uri.clone(),
8446 range: lsp::Range::new(
8447 lsp::Position::new(2, 8),
8448 lsp::Position::new(2, 17),
8449 ),
8450 },
8451 message: "original diagnostic".to_string(),
8452 }]),
8453 ..Default::default()
8454 },
8455 ],
8456 version: None,
8457 };
8458
8459 project
8460 .update(cx, |p, cx| p.update_diagnostics(0, message, &[], cx))
8461 .unwrap();
8462 let buffer = buffer.read_with(cx, |buffer, _| buffer.snapshot());
8463
8464 assert_eq!(
8465 buffer
8466 .diagnostics_in_range::<_, Point>(0..buffer.len(), false)
8467 .collect::<Vec<_>>(),
8468 &[
8469 DiagnosticEntry {
8470 range: Point::new(1, 8)..Point::new(1, 9),
8471 diagnostic: Diagnostic {
8472 severity: DiagnosticSeverity::WARNING,
8473 message: "error 1".to_string(),
8474 group_id: 0,
8475 is_primary: true,
8476 ..Default::default()
8477 }
8478 },
8479 DiagnosticEntry {
8480 range: Point::new(1, 8)..Point::new(1, 9),
8481 diagnostic: Diagnostic {
8482 severity: DiagnosticSeverity::HINT,
8483 message: "error 1 hint 1".to_string(),
8484 group_id: 0,
8485 is_primary: false,
8486 ..Default::default()
8487 }
8488 },
8489 DiagnosticEntry {
8490 range: Point::new(1, 13)..Point::new(1, 15),
8491 diagnostic: Diagnostic {
8492 severity: DiagnosticSeverity::HINT,
8493 message: "error 2 hint 1".to_string(),
8494 group_id: 1,
8495 is_primary: false,
8496 ..Default::default()
8497 }
8498 },
8499 DiagnosticEntry {
8500 range: Point::new(1, 13)..Point::new(1, 15),
8501 diagnostic: Diagnostic {
8502 severity: DiagnosticSeverity::HINT,
8503 message: "error 2 hint 2".to_string(),
8504 group_id: 1,
8505 is_primary: false,
8506 ..Default::default()
8507 }
8508 },
8509 DiagnosticEntry {
8510 range: Point::new(2, 8)..Point::new(2, 17),
8511 diagnostic: Diagnostic {
8512 severity: DiagnosticSeverity::ERROR,
8513 message: "error 2".to_string(),
8514 group_id: 1,
8515 is_primary: true,
8516 ..Default::default()
8517 }
8518 }
8519 ]
8520 );
8521
8522 assert_eq!(
8523 buffer.diagnostic_group::<Point>(0).collect::<Vec<_>>(),
8524 &[
8525 DiagnosticEntry {
8526 range: Point::new(1, 8)..Point::new(1, 9),
8527 diagnostic: Diagnostic {
8528 severity: DiagnosticSeverity::WARNING,
8529 message: "error 1".to_string(),
8530 group_id: 0,
8531 is_primary: true,
8532 ..Default::default()
8533 }
8534 },
8535 DiagnosticEntry {
8536 range: Point::new(1, 8)..Point::new(1, 9),
8537 diagnostic: Diagnostic {
8538 severity: DiagnosticSeverity::HINT,
8539 message: "error 1 hint 1".to_string(),
8540 group_id: 0,
8541 is_primary: false,
8542 ..Default::default()
8543 }
8544 },
8545 ]
8546 );
8547 assert_eq!(
8548 buffer.diagnostic_group::<Point>(1).collect::<Vec<_>>(),
8549 &[
8550 DiagnosticEntry {
8551 range: Point::new(1, 13)..Point::new(1, 15),
8552 diagnostic: Diagnostic {
8553 severity: DiagnosticSeverity::HINT,
8554 message: "error 2 hint 1".to_string(),
8555 group_id: 1,
8556 is_primary: false,
8557 ..Default::default()
8558 }
8559 },
8560 DiagnosticEntry {
8561 range: Point::new(1, 13)..Point::new(1, 15),
8562 diagnostic: Diagnostic {
8563 severity: DiagnosticSeverity::HINT,
8564 message: "error 2 hint 2".to_string(),
8565 group_id: 1,
8566 is_primary: false,
8567 ..Default::default()
8568 }
8569 },
8570 DiagnosticEntry {
8571 range: Point::new(2, 8)..Point::new(2, 17),
8572 diagnostic: Diagnostic {
8573 severity: DiagnosticSeverity::ERROR,
8574 message: "error 2".to_string(),
8575 group_id: 1,
8576 is_primary: true,
8577 ..Default::default()
8578 }
8579 }
8580 ]
8581 );
8582 }
8583
8584 #[gpui::test]
8585 async fn test_rename(cx: &mut gpui::TestAppContext) {
8586 cx.foreground().forbid_parking();
8587
8588 let mut language = Language::new(
8589 LanguageConfig {
8590 name: "Rust".into(),
8591 path_suffixes: vec!["rs".to_string()],
8592 ..Default::default()
8593 },
8594 Some(tree_sitter_rust::language()),
8595 );
8596 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
8597 capabilities: lsp::ServerCapabilities {
8598 rename_provider: Some(lsp::OneOf::Right(lsp::RenameOptions {
8599 prepare_provider: Some(true),
8600 work_done_progress_options: Default::default(),
8601 })),
8602 ..Default::default()
8603 },
8604 ..Default::default()
8605 });
8606
8607 let fs = FakeFs::new(cx.background());
8608 fs.insert_tree(
8609 "/dir",
8610 json!({
8611 "one.rs": "const ONE: usize = 1;",
8612 "two.rs": "const TWO: usize = one::ONE + one::ONE;"
8613 }),
8614 )
8615 .await;
8616
8617 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
8618 project.update(cx, |project, _| project.languages.add(Arc::new(language)));
8619 let buffer = project
8620 .update(cx, |project, cx| {
8621 project.open_local_buffer("/dir/one.rs", cx)
8622 })
8623 .await
8624 .unwrap();
8625
8626 let fake_server = fake_servers.next().await.unwrap();
8627
8628 let response = project.update(cx, |project, cx| {
8629 project.prepare_rename(buffer.clone(), 7, cx)
8630 });
8631 fake_server
8632 .handle_request::<lsp::request::PrepareRenameRequest, _, _>(|params, _| async move {
8633 assert_eq!(params.text_document.uri.as_str(), "file:///dir/one.rs");
8634 assert_eq!(params.position, lsp::Position::new(0, 7));
8635 Ok(Some(lsp::PrepareRenameResponse::Range(lsp::Range::new(
8636 lsp::Position::new(0, 6),
8637 lsp::Position::new(0, 9),
8638 ))))
8639 })
8640 .next()
8641 .await
8642 .unwrap();
8643 let range = response.await.unwrap().unwrap();
8644 let range = buffer.read_with(cx, |buffer, _| range.to_offset(buffer));
8645 assert_eq!(range, 6..9);
8646
8647 let response = project.update(cx, |project, cx| {
8648 project.perform_rename(buffer.clone(), 7, "THREE".to_string(), true, cx)
8649 });
8650 fake_server
8651 .handle_request::<lsp::request::Rename, _, _>(|params, _| async move {
8652 assert_eq!(
8653 params.text_document_position.text_document.uri.as_str(),
8654 "file:///dir/one.rs"
8655 );
8656 assert_eq!(
8657 params.text_document_position.position,
8658 lsp::Position::new(0, 7)
8659 );
8660 assert_eq!(params.new_name, "THREE");
8661 Ok(Some(lsp::WorkspaceEdit {
8662 changes: Some(
8663 [
8664 (
8665 lsp::Url::from_file_path("/dir/one.rs").unwrap(),
8666 vec![lsp::TextEdit::new(
8667 lsp::Range::new(
8668 lsp::Position::new(0, 6),
8669 lsp::Position::new(0, 9),
8670 ),
8671 "THREE".to_string(),
8672 )],
8673 ),
8674 (
8675 lsp::Url::from_file_path("/dir/two.rs").unwrap(),
8676 vec![
8677 lsp::TextEdit::new(
8678 lsp::Range::new(
8679 lsp::Position::new(0, 24),
8680 lsp::Position::new(0, 27),
8681 ),
8682 "THREE".to_string(),
8683 ),
8684 lsp::TextEdit::new(
8685 lsp::Range::new(
8686 lsp::Position::new(0, 35),
8687 lsp::Position::new(0, 38),
8688 ),
8689 "THREE".to_string(),
8690 ),
8691 ],
8692 ),
8693 ]
8694 .into_iter()
8695 .collect(),
8696 ),
8697 ..Default::default()
8698 }))
8699 })
8700 .next()
8701 .await
8702 .unwrap();
8703 let mut transaction = response.await.unwrap().0;
8704 assert_eq!(transaction.len(), 2);
8705 assert_eq!(
8706 transaction
8707 .remove_entry(&buffer)
8708 .unwrap()
8709 .0
8710 .read_with(cx, |buffer, _| buffer.text()),
8711 "const THREE: usize = 1;"
8712 );
8713 assert_eq!(
8714 transaction
8715 .into_keys()
8716 .next()
8717 .unwrap()
8718 .read_with(cx, |buffer, _| buffer.text()),
8719 "const TWO: usize = one::THREE + one::THREE;"
8720 );
8721 }
8722
8723 #[gpui::test]
8724 async fn test_search(cx: &mut gpui::TestAppContext) {
8725 let fs = FakeFs::new(cx.background());
8726 fs.insert_tree(
8727 "/dir",
8728 json!({
8729 "one.rs": "const ONE: usize = 1;",
8730 "two.rs": "const TWO: usize = one::ONE + one::ONE;",
8731 "three.rs": "const THREE: usize = one::ONE + two::TWO;",
8732 "four.rs": "const FOUR: usize = one::ONE + three::THREE;",
8733 }),
8734 )
8735 .await;
8736 let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
8737 assert_eq!(
8738 search(&project, SearchQuery::text("TWO", false, true), cx)
8739 .await
8740 .unwrap(),
8741 HashMap::from_iter([
8742 ("two.rs".to_string(), vec![6..9]),
8743 ("three.rs".to_string(), vec![37..40])
8744 ])
8745 );
8746
8747 let buffer_4 = project
8748 .update(cx, |project, cx| {
8749 project.open_local_buffer("/dir/four.rs", cx)
8750 })
8751 .await
8752 .unwrap();
8753 buffer_4.update(cx, |buffer, cx| {
8754 let text = "two::TWO";
8755 buffer.edit([(20..28, text), (31..43, text)], cx);
8756 });
8757
8758 assert_eq!(
8759 search(&project, SearchQuery::text("TWO", false, true), cx)
8760 .await
8761 .unwrap(),
8762 HashMap::from_iter([
8763 ("two.rs".to_string(), vec![6..9]),
8764 ("three.rs".to_string(), vec![37..40]),
8765 ("four.rs".to_string(), vec![25..28, 36..39])
8766 ])
8767 );
8768
8769 async fn search(
8770 project: &ModelHandle<Project>,
8771 query: SearchQuery,
8772 cx: &mut gpui::TestAppContext,
8773 ) -> Result<HashMap<String, Vec<Range<usize>>>> {
8774 let results = project
8775 .update(cx, |project, cx| project.search(query, cx))
8776 .await?;
8777
8778 Ok(results
8779 .into_iter()
8780 .map(|(buffer, ranges)| {
8781 buffer.read_with(cx, |buffer, _| {
8782 let path = buffer.file().unwrap().path().to_string_lossy().to_string();
8783 let ranges = ranges
8784 .into_iter()
8785 .map(|range| range.to_offset(buffer))
8786 .collect::<Vec<_>>();
8787 (path, ranges)
8788 })
8789 })
8790 .collect())
8791 }
8792 }
8793}