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