1mod ignore;
2mod lsp_command;
3pub mod project_settings;
4pub mod search;
5pub mod terminals;
6pub mod worktree;
7
8#[cfg(test)]
9mod project_tests;
10#[cfg(test)]
11mod worktree_tests;
12
13use anyhow::{anyhow, Context, Result};
14use client::{proto, Client, TypedEnvelope, UserStore};
15use clock::ReplicaId;
16use collections::{hash_map, BTreeMap, HashMap, HashSet};
17use copilot::Copilot;
18use futures::{
19 channel::{
20 mpsc::{self, UnboundedReceiver},
21 oneshot,
22 },
23 future::{try_join_all, Shared},
24 stream::FuturesUnordered,
25 AsyncWriteExt, Future, FutureExt, StreamExt, TryFutureExt,
26};
27use globset::{Glob, GlobSet, GlobSetBuilder};
28use gpui::{
29 AnyModelHandle, AppContext, AsyncAppContext, BorrowAppContext, Entity, ModelContext,
30 ModelHandle, Task, WeakModelHandle,
31};
32use itertools::Itertools;
33use language::{
34 language_settings::{language_settings, FormatOnSave, Formatter, InlayHintKind},
35 point_to_lsp,
36 proto::{
37 deserialize_anchor, deserialize_fingerprint, deserialize_line_ending, deserialize_version,
38 serialize_anchor, serialize_version,
39 },
40 range_from_lsp, range_to_lsp, Bias, Buffer, CachedLspAdapter, CodeAction, CodeLabel,
41 Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Diff, Event as BufferEvent, File as _,
42 Language, LanguageRegistry, LanguageServerName, LocalFile, LspAdapterDelegate, OffsetRangeExt,
43 Operation, Patch, PendingLanguageServer, PointUtf16, TextBufferSnapshot, ToOffset,
44 ToPointUtf16, Transaction, Unclipped,
45};
46use log::error;
47use lsp::{
48 DiagnosticSeverity, DiagnosticTag, DidChangeWatchedFilesRegistrationOptions,
49 DocumentHighlightKind, LanguageServer, LanguageServerBinary, LanguageServerId, OneOf,
50};
51use lsp_command::*;
52use postage::watch;
53use project_settings::{LspSettings, ProjectSettings};
54use rand::prelude::*;
55use search::SearchQuery;
56use serde::Serialize;
57use settings::SettingsStore;
58use sha2::{Digest, Sha256};
59use similar::{ChangeTag, TextDiff};
60use std::{
61 cell::RefCell,
62 cmp::{self, Ordering},
63 convert::TryInto,
64 hash::Hash,
65 mem,
66 num::NonZeroU32,
67 ops::Range,
68 path::{self, Component, Path, PathBuf},
69 process::Stdio,
70 rc::Rc,
71 str,
72 sync::{
73 atomic::{AtomicUsize, Ordering::SeqCst},
74 Arc,
75 },
76 time::{Duration, Instant},
77};
78use terminals::Terminals;
79use text::Anchor;
80use util::{
81 debug_panic, defer, http::HttpClient, merge_json_value_into,
82 paths::LOCAL_SETTINGS_RELATIVE_PATH, post_inc, ResultExt, TryFutureExt as _,
83};
84
85pub use fs::*;
86pub use worktree::*;
87
88pub trait Item {
89 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
90 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
91}
92
93// Language server state is stored across 3 collections:
94// language_servers =>
95// a mapping from unique server id to LanguageServerState which can either be a task for a
96// server in the process of starting, or a running server with adapter and language server arcs
97// language_server_ids => a mapping from worktreeId and server name to the unique server id
98// language_server_statuses => a mapping from unique server id to the current server status
99//
100// Multiple worktrees can map to the same language server for example when you jump to the definition
101// of a file in the standard library. So language_server_ids is used to look up which server is active
102// for a given worktree and language server name
103//
104// When starting a language server, first the id map is checked to make sure a server isn't already available
105// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
106// the Starting variant of LanguageServerState is stored in the language_servers map.
107pub struct Project {
108 worktrees: Vec<WorktreeHandle>,
109 active_entry: Option<ProjectEntryId>,
110 buffer_ordered_messages_tx: mpsc::UnboundedSender<BufferOrderedMessage>,
111 languages: Arc<LanguageRegistry>,
112 language_servers: HashMap<LanguageServerId, LanguageServerState>,
113 language_server_ids: HashMap<(WorktreeId, LanguageServerName), LanguageServerId>,
114 language_server_statuses: BTreeMap<LanguageServerId, LanguageServerStatus>,
115 last_workspace_edits_by_language_server: HashMap<LanguageServerId, ProjectTransaction>,
116 client: Arc<client::Client>,
117 next_entry_id: Arc<AtomicUsize>,
118 join_project_response_message_id: u32,
119 next_diagnostic_group_id: usize,
120 user_store: ModelHandle<UserStore>,
121 fs: Arc<dyn Fs>,
122 client_state: Option<ProjectClientState>,
123 collaborators: HashMap<proto::PeerId, Collaborator>,
124 client_subscriptions: Vec<client::Subscription>,
125 _subscriptions: Vec<gpui::Subscription>,
126 next_buffer_id: u64,
127 opened_buffer: (watch::Sender<()>, watch::Receiver<()>),
128 shared_buffers: HashMap<proto::PeerId, HashSet<u64>>,
129 #[allow(clippy::type_complexity)]
130 loading_buffers_by_path: HashMap<
131 ProjectPath,
132 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
133 >,
134 #[allow(clippy::type_complexity)]
135 loading_local_worktrees:
136 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
137 opened_buffers: HashMap<u64, OpenBuffer>,
138 local_buffer_ids_by_path: HashMap<ProjectPath, u64>,
139 local_buffer_ids_by_entry_id: HashMap<ProjectEntryId, u64>,
140 /// A mapping from a buffer ID to None means that we've started waiting for an ID but haven't finished loading it.
141 /// Used for re-issuing buffer requests when peers temporarily disconnect
142 incomplete_remote_buffers: HashMap<u64, Option<ModelHandle<Buffer>>>,
143 buffer_snapshots: HashMap<u64, HashMap<LanguageServerId, Vec<LspBufferSnapshot>>>, // buffer_id -> server_id -> vec of snapshots
144 buffers_being_formatted: HashSet<u64>,
145 buffers_needing_diff: HashSet<WeakModelHandle<Buffer>>,
146 git_diff_debouncer: DelayedDebounced,
147 nonce: u128,
148 _maintain_buffer_languages: Task<()>,
149 _maintain_workspace_config: Task<()>,
150 terminals: Terminals,
151 copilot_enabled: bool,
152 current_lsp_settings: HashMap<Arc<str>, LspSettings>,
153}
154
155struct DelayedDebounced {
156 task: Option<Task<()>>,
157 cancel_channel: Option<oneshot::Sender<()>>,
158}
159
160impl DelayedDebounced {
161 fn new() -> DelayedDebounced {
162 DelayedDebounced {
163 task: None,
164 cancel_channel: None,
165 }
166 }
167
168 fn fire_new<F>(&mut self, delay: Duration, cx: &mut ModelContext<Project>, func: F)
169 where
170 F: 'static + FnOnce(&mut Project, &mut ModelContext<Project>) -> Task<()>,
171 {
172 if let Some(channel) = self.cancel_channel.take() {
173 _ = channel.send(());
174 }
175
176 let (sender, mut receiver) = oneshot::channel::<()>();
177 self.cancel_channel = Some(sender);
178
179 let previous_task = self.task.take();
180 self.task = Some(cx.spawn(|workspace, mut cx| async move {
181 let mut timer = cx.background().timer(delay).fuse();
182 if let Some(previous_task) = previous_task {
183 previous_task.await;
184 }
185
186 futures::select_biased! {
187 _ = receiver => return,
188 _ = timer => {}
189 }
190
191 workspace
192 .update(&mut cx, |workspace, cx| (func)(workspace, cx))
193 .await;
194 }));
195 }
196}
197
198struct LspBufferSnapshot {
199 version: i32,
200 snapshot: TextBufferSnapshot,
201}
202
203/// Message ordered with respect to buffer operations
204enum BufferOrderedMessage {
205 Operation {
206 buffer_id: u64,
207 operation: proto::Operation,
208 },
209 LanguageServerUpdate {
210 language_server_id: LanguageServerId,
211 message: proto::update_language_server::Variant,
212 },
213 Resync,
214}
215
216enum LocalProjectUpdate {
217 WorktreesChanged,
218 CreateBufferForPeer {
219 peer_id: proto::PeerId,
220 buffer_id: u64,
221 },
222}
223
224enum OpenBuffer {
225 Strong(ModelHandle<Buffer>),
226 Weak(WeakModelHandle<Buffer>),
227 Operations(Vec<Operation>),
228}
229
230#[derive(Clone)]
231enum WorktreeHandle {
232 Strong(ModelHandle<Worktree>),
233 Weak(WeakModelHandle<Worktree>),
234}
235
236enum ProjectClientState {
237 Local {
238 remote_id: u64,
239 updates_tx: mpsc::UnboundedSender<LocalProjectUpdate>,
240 _send_updates: Task<()>,
241 },
242 Remote {
243 sharing_has_stopped: bool,
244 remote_id: u64,
245 replica_id: ReplicaId,
246 },
247}
248
249#[derive(Clone, Debug)]
250pub struct Collaborator {
251 pub peer_id: proto::PeerId,
252 pub replica_id: ReplicaId,
253}
254
255#[derive(Clone, Debug, PartialEq)]
256pub enum Event {
257 LanguageServerAdded(LanguageServerId),
258 LanguageServerRemoved(LanguageServerId),
259 LanguageServerLog(LanguageServerId, String),
260 Notification(String),
261 ActiveEntryChanged(Option<ProjectEntryId>),
262 ActivateProjectPanel,
263 WorktreeAdded,
264 WorktreeRemoved(WorktreeId),
265 WorktreeUpdatedEntries(WorktreeId, UpdatedEntriesSet),
266 DiskBasedDiagnosticsStarted {
267 language_server_id: LanguageServerId,
268 },
269 DiskBasedDiagnosticsFinished {
270 language_server_id: LanguageServerId,
271 },
272 DiagnosticsUpdated {
273 path: ProjectPath,
274 language_server_id: LanguageServerId,
275 },
276 RemoteIdChanged(Option<u64>),
277 DisconnectedFromHost,
278 Closed,
279 DeletedEntry(ProjectEntryId),
280 CollaboratorUpdated {
281 old_peer_id: proto::PeerId,
282 new_peer_id: proto::PeerId,
283 },
284 CollaboratorLeft(proto::PeerId),
285 RefreshInlays,
286}
287
288pub enum LanguageServerState {
289 Starting(Task<Option<Arc<LanguageServer>>>),
290
291 Running {
292 language: Arc<Language>,
293 adapter: Arc<CachedLspAdapter>,
294 server: Arc<LanguageServer>,
295 watched_paths: HashMap<WorktreeId, GlobSet>,
296 simulate_disk_based_diagnostics_completion: Option<Task<()>>,
297 },
298}
299
300#[derive(Serialize)]
301pub struct LanguageServerStatus {
302 pub name: String,
303 pub pending_work: BTreeMap<String, LanguageServerProgress>,
304 pub has_pending_diagnostic_updates: bool,
305 progress_tokens: HashSet<String>,
306}
307
308#[derive(Clone, Debug, Serialize)]
309pub struct LanguageServerProgress {
310 pub message: Option<String>,
311 pub percentage: Option<usize>,
312 #[serde(skip_serializing)]
313 pub last_update_at: Instant,
314}
315
316#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
317pub struct ProjectPath {
318 pub worktree_id: WorktreeId,
319 pub path: Arc<Path>,
320}
321
322#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
323pub struct DiagnosticSummary {
324 pub error_count: usize,
325 pub warning_count: usize,
326}
327
328#[derive(Debug, Clone, PartialEq, Eq, Hash)]
329pub struct Location {
330 pub buffer: ModelHandle<Buffer>,
331 pub range: Range<language::Anchor>,
332}
333
334#[derive(Debug, Clone, PartialEq, Eq, Hash)]
335pub struct InlayHint {
336 pub buffer_id: u64,
337 pub position: language::Anchor,
338 pub label: InlayHintLabel,
339 pub kind: Option<InlayHintKind>,
340 pub padding_left: bool,
341 pub padding_right: bool,
342 pub tooltip: Option<InlayHintTooltip>,
343}
344
345impl InlayHint {
346 pub fn text(&self) -> String {
347 match &self.label {
348 InlayHintLabel::String(s) => s.to_owned(),
349 InlayHintLabel::LabelParts(parts) => parts.iter().map(|part| &part.value).join(""),
350 }
351 }
352}
353
354#[derive(Debug, Clone, PartialEq, Eq, Hash)]
355pub enum InlayHintLabel {
356 String(String),
357 LabelParts(Vec<InlayHintLabelPart>),
358}
359
360#[derive(Debug, Clone, PartialEq, Eq, Hash)]
361pub struct InlayHintLabelPart {
362 pub value: String,
363 pub tooltip: Option<InlayHintLabelPartTooltip>,
364 pub location: Option<Location>,
365}
366
367#[derive(Debug, Clone, PartialEq, Eq, Hash)]
368pub enum InlayHintTooltip {
369 String(String),
370 MarkupContent(MarkupContent),
371}
372
373#[derive(Debug, Clone, PartialEq, Eq, Hash)]
374pub enum InlayHintLabelPartTooltip {
375 String(String),
376 MarkupContent(MarkupContent),
377}
378
379#[derive(Debug, Clone, PartialEq, Eq, Hash)]
380pub struct MarkupContent {
381 pub kind: String,
382 pub value: String,
383}
384
385#[derive(Debug, Clone)]
386pub struct LocationLink {
387 pub origin: Option<Location>,
388 pub target: Location,
389}
390
391#[derive(Debug)]
392pub struct DocumentHighlight {
393 pub range: Range<language::Anchor>,
394 pub kind: DocumentHighlightKind,
395}
396
397#[derive(Clone, Debug)]
398pub struct Symbol {
399 pub language_server_name: LanguageServerName,
400 pub source_worktree_id: WorktreeId,
401 pub path: ProjectPath,
402 pub label: CodeLabel,
403 pub name: String,
404 pub kind: lsp::SymbolKind,
405 pub range: Range<Unclipped<PointUtf16>>,
406 pub signature: [u8; 32],
407}
408
409#[derive(Clone, Debug, PartialEq)]
410pub struct HoverBlock {
411 pub text: String,
412 pub kind: HoverBlockKind,
413}
414
415#[derive(Clone, Debug, PartialEq)]
416pub enum HoverBlockKind {
417 PlainText,
418 Markdown,
419 Code { language: String },
420}
421
422#[derive(Debug)]
423pub struct Hover {
424 pub contents: Vec<HoverBlock>,
425 pub range: Option<Range<language::Anchor>>,
426 pub language: Option<Arc<Language>>,
427}
428
429impl Hover {
430 pub fn is_empty(&self) -> bool {
431 self.contents.iter().all(|block| block.text.is_empty())
432 }
433}
434
435#[derive(Default)]
436pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
437
438impl DiagnosticSummary {
439 fn new<'a, T: 'a>(diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>) -> Self {
440 let mut this = Self {
441 error_count: 0,
442 warning_count: 0,
443 };
444
445 for entry in diagnostics {
446 if entry.diagnostic.is_primary {
447 match entry.diagnostic.severity {
448 DiagnosticSeverity::ERROR => this.error_count += 1,
449 DiagnosticSeverity::WARNING => this.warning_count += 1,
450 _ => {}
451 }
452 }
453 }
454
455 this
456 }
457
458 pub fn is_empty(&self) -> bool {
459 self.error_count == 0 && self.warning_count == 0
460 }
461
462 pub fn to_proto(
463 &self,
464 language_server_id: LanguageServerId,
465 path: &Path,
466 ) -> proto::DiagnosticSummary {
467 proto::DiagnosticSummary {
468 path: path.to_string_lossy().to_string(),
469 language_server_id: language_server_id.0 as u64,
470 error_count: self.error_count as u32,
471 warning_count: self.warning_count as u32,
472 }
473 }
474}
475
476#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
477pub struct ProjectEntryId(usize);
478
479impl ProjectEntryId {
480 pub const MAX: Self = Self(usize::MAX);
481
482 pub fn new(counter: &AtomicUsize) -> Self {
483 Self(counter.fetch_add(1, SeqCst))
484 }
485
486 pub fn from_proto(id: u64) -> Self {
487 Self(id as usize)
488 }
489
490 pub fn to_proto(&self) -> u64 {
491 self.0 as u64
492 }
493
494 pub fn to_usize(&self) -> usize {
495 self.0
496 }
497}
498
499#[derive(Debug, Clone, Copy, PartialEq, Eq)]
500pub enum FormatTrigger {
501 Save,
502 Manual,
503}
504
505struct ProjectLspAdapterDelegate {
506 project: ModelHandle<Project>,
507 http_client: Arc<dyn HttpClient>,
508}
509
510impl FormatTrigger {
511 fn from_proto(value: i32) -> FormatTrigger {
512 match value {
513 0 => FormatTrigger::Save,
514 1 => FormatTrigger::Manual,
515 _ => FormatTrigger::Save,
516 }
517 }
518}
519
520impl Project {
521 pub fn init_settings(cx: &mut AppContext) {
522 settings::register::<ProjectSettings>(cx);
523 }
524
525 pub fn init(client: &Arc<Client>, cx: &mut AppContext) {
526 Self::init_settings(cx);
527
528 client.add_model_message_handler(Self::handle_add_collaborator);
529 client.add_model_message_handler(Self::handle_update_project_collaborator);
530 client.add_model_message_handler(Self::handle_remove_collaborator);
531 client.add_model_message_handler(Self::handle_buffer_reloaded);
532 client.add_model_message_handler(Self::handle_buffer_saved);
533 client.add_model_message_handler(Self::handle_start_language_server);
534 client.add_model_message_handler(Self::handle_update_language_server);
535 client.add_model_message_handler(Self::handle_update_project);
536 client.add_model_message_handler(Self::handle_unshare_project);
537 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
538 client.add_model_message_handler(Self::handle_update_buffer_file);
539 client.add_model_request_handler(Self::handle_update_buffer);
540 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
541 client.add_model_message_handler(Self::handle_update_worktree);
542 client.add_model_message_handler(Self::handle_update_worktree_settings);
543 client.add_model_request_handler(Self::handle_create_project_entry);
544 client.add_model_request_handler(Self::handle_rename_project_entry);
545 client.add_model_request_handler(Self::handle_copy_project_entry);
546 client.add_model_request_handler(Self::handle_delete_project_entry);
547 client.add_model_request_handler(Self::handle_expand_project_entry);
548 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
549 client.add_model_request_handler(Self::handle_apply_code_action);
550 client.add_model_request_handler(Self::handle_on_type_formatting);
551 client.add_model_request_handler(Self::handle_inlay_hints);
552 client.add_model_request_handler(Self::handle_refresh_inlay_hints);
553 client.add_model_request_handler(Self::handle_reload_buffers);
554 client.add_model_request_handler(Self::handle_synchronize_buffers);
555 client.add_model_request_handler(Self::handle_format_buffers);
556 client.add_model_request_handler(Self::handle_lsp_command::<GetCodeActions>);
557 client.add_model_request_handler(Self::handle_lsp_command::<GetCompletions>);
558 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
559 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
560 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
561 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
562 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
563 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
564 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
565 client.add_model_request_handler(Self::handle_search_project);
566 client.add_model_request_handler(Self::handle_get_project_symbols);
567 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
568 client.add_model_request_handler(Self::handle_open_buffer_by_id);
569 client.add_model_request_handler(Self::handle_open_buffer_by_path);
570 client.add_model_request_handler(Self::handle_save_buffer);
571 client.add_model_message_handler(Self::handle_update_diff_base);
572 }
573
574 pub fn local(
575 client: Arc<Client>,
576 user_store: ModelHandle<UserStore>,
577 languages: Arc<LanguageRegistry>,
578 fs: Arc<dyn Fs>,
579 cx: &mut AppContext,
580 ) -> ModelHandle<Self> {
581 cx.add_model(|cx: &mut ModelContext<Self>| {
582 let (tx, rx) = mpsc::unbounded();
583 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
584 .detach();
585 Self {
586 worktrees: Default::default(),
587 buffer_ordered_messages_tx: tx,
588 collaborators: Default::default(),
589 next_buffer_id: 0,
590 opened_buffers: Default::default(),
591 shared_buffers: Default::default(),
592 incomplete_remote_buffers: Default::default(),
593 loading_buffers_by_path: Default::default(),
594 loading_local_worktrees: Default::default(),
595 local_buffer_ids_by_path: Default::default(),
596 local_buffer_ids_by_entry_id: Default::default(),
597 buffer_snapshots: Default::default(),
598 join_project_response_message_id: 0,
599 client_state: None,
600 opened_buffer: watch::channel(),
601 client_subscriptions: Vec::new(),
602 _subscriptions: vec![
603 cx.observe_global::<SettingsStore, _>(Self::on_settings_changed)
604 ],
605 _maintain_buffer_languages: Self::maintain_buffer_languages(languages.clone(), cx),
606 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
607 active_entry: None,
608 languages,
609 client,
610 user_store,
611 fs,
612 next_entry_id: Default::default(),
613 next_diagnostic_group_id: Default::default(),
614 language_servers: Default::default(),
615 language_server_ids: Default::default(),
616 language_server_statuses: Default::default(),
617 last_workspace_edits_by_language_server: Default::default(),
618 buffers_being_formatted: Default::default(),
619 buffers_needing_diff: Default::default(),
620 git_diff_debouncer: DelayedDebounced::new(),
621 nonce: StdRng::from_entropy().gen(),
622 terminals: Terminals {
623 local_handles: Vec::new(),
624 },
625 copilot_enabled: Copilot::global(cx).is_some(),
626 current_lsp_settings: settings::get::<ProjectSettings>(cx).lsp.clone(),
627 }
628 })
629 }
630
631 pub async fn remote(
632 remote_id: u64,
633 client: Arc<Client>,
634 user_store: ModelHandle<UserStore>,
635 languages: Arc<LanguageRegistry>,
636 fs: Arc<dyn Fs>,
637 mut cx: AsyncAppContext,
638 ) -> Result<ModelHandle<Self>> {
639 client.authenticate_and_connect(true, &cx).await?;
640
641 let subscription = client.subscribe_to_entity(remote_id)?;
642 let response = client
643 .request_envelope(proto::JoinProject {
644 project_id: remote_id,
645 })
646 .await?;
647 let this = cx.add_model(|cx| {
648 let replica_id = response.payload.replica_id as ReplicaId;
649
650 let mut worktrees = Vec::new();
651 for worktree in response.payload.worktrees {
652 let worktree = cx.update(|cx| {
653 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx)
654 });
655 worktrees.push(worktree);
656 }
657
658 let (tx, rx) = mpsc::unbounded();
659 cx.spawn_weak(|this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
660 .detach();
661 let mut this = Self {
662 worktrees: Vec::new(),
663 buffer_ordered_messages_tx: tx,
664 loading_buffers_by_path: Default::default(),
665 next_buffer_id: 0,
666 opened_buffer: watch::channel(),
667 shared_buffers: Default::default(),
668 incomplete_remote_buffers: Default::default(),
669 loading_local_worktrees: Default::default(),
670 local_buffer_ids_by_path: Default::default(),
671 local_buffer_ids_by_entry_id: Default::default(),
672 active_entry: None,
673 collaborators: Default::default(),
674 join_project_response_message_id: response.message_id,
675 _maintain_buffer_languages: Self::maintain_buffer_languages(languages.clone(), cx),
676 _maintain_workspace_config: Self::maintain_workspace_config(languages.clone(), cx),
677 languages,
678 user_store: user_store.clone(),
679 fs,
680 next_entry_id: Default::default(),
681 next_diagnostic_group_id: Default::default(),
682 client_subscriptions: Default::default(),
683 _subscriptions: Default::default(),
684 client: client.clone(),
685 client_state: Some(ProjectClientState::Remote {
686 sharing_has_stopped: false,
687 remote_id,
688 replica_id,
689 }),
690 language_servers: Default::default(),
691 language_server_ids: Default::default(),
692 language_server_statuses: response
693 .payload
694 .language_servers
695 .into_iter()
696 .map(|server| {
697 (
698 LanguageServerId(server.id as usize),
699 LanguageServerStatus {
700 name: server.name,
701 pending_work: Default::default(),
702 has_pending_diagnostic_updates: false,
703 progress_tokens: Default::default(),
704 },
705 )
706 })
707 .collect(),
708 last_workspace_edits_by_language_server: Default::default(),
709 opened_buffers: Default::default(),
710 buffers_being_formatted: Default::default(),
711 buffers_needing_diff: Default::default(),
712 git_diff_debouncer: DelayedDebounced::new(),
713 buffer_snapshots: Default::default(),
714 nonce: StdRng::from_entropy().gen(),
715 terminals: Terminals {
716 local_handles: Vec::new(),
717 },
718 copilot_enabled: Copilot::global(cx).is_some(),
719 current_lsp_settings: settings::get::<ProjectSettings>(cx).lsp.clone(),
720 };
721 for worktree in worktrees {
722 let _ = this.add_worktree(&worktree, cx);
723 }
724 this
725 });
726 let subscription = subscription.set_model(&this, &mut cx);
727
728 let user_ids = response
729 .payload
730 .collaborators
731 .iter()
732 .map(|peer| peer.user_id)
733 .collect();
734 user_store
735 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
736 .await?;
737
738 this.update(&mut cx, |this, cx| {
739 this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
740 this.client_subscriptions.push(subscription);
741 anyhow::Ok(())
742 })?;
743
744 Ok(this)
745 }
746
747 #[cfg(any(test, feature = "test-support"))]
748 pub async fn test(
749 fs: Arc<dyn Fs>,
750 root_paths: impl IntoIterator<Item = &Path>,
751 cx: &mut gpui::TestAppContext,
752 ) -> ModelHandle<Project> {
753 let mut languages = LanguageRegistry::test();
754 languages.set_executor(cx.background());
755 let http_client = util::http::FakeHttpClient::with_404_response();
756 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
757 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
758 let project =
759 cx.update(|cx| Project::local(client, user_store, Arc::new(languages), fs, cx));
760 for path in root_paths {
761 let (tree, _) = project
762 .update(cx, |project, cx| {
763 project.find_or_create_local_worktree(path, true, cx)
764 })
765 .await
766 .unwrap();
767 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
768 .await;
769 }
770 project
771 }
772
773 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
774 let mut language_servers_to_start = Vec::new();
775 for buffer in self.opened_buffers.values() {
776 if let Some(buffer) = buffer.upgrade(cx) {
777 let buffer = buffer.read(cx);
778 if let Some((file, language)) = buffer.file().zip(buffer.language()) {
779 let settings = language_settings(Some(language), Some(file), cx);
780 if settings.enable_language_server {
781 if let Some(file) = File::from_dyn(Some(file)) {
782 language_servers_to_start
783 .push((file.worktree.clone(), language.clone()));
784 }
785 }
786 }
787 }
788 }
789
790 let mut language_servers_to_stop = Vec::new();
791 let mut language_servers_to_restart = Vec::new();
792 let languages = self.languages.to_vec();
793
794 let new_lsp_settings = settings::get::<ProjectSettings>(cx).lsp.clone();
795 let current_lsp_settings = &self.current_lsp_settings;
796 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
797 let language = languages.iter().find_map(|l| {
798 let adapter = l
799 .lsp_adapters()
800 .iter()
801 .find(|adapter| &adapter.name == started_lsp_name)?;
802 Some((l, adapter))
803 });
804 if let Some((language, adapter)) = language {
805 let worktree = self.worktree_for_id(*worktree_id, cx);
806 let file = worktree.as_ref().and_then(|tree| {
807 tree.update(cx, |tree, cx| tree.root_file(cx).map(|f| f as _))
808 });
809 if !language_settings(Some(language), file.as_ref(), cx).enable_language_server {
810 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
811 } else if let Some(worktree) = worktree {
812 let server_name = &adapter.name.0;
813 match (
814 current_lsp_settings.get(server_name),
815 new_lsp_settings.get(server_name),
816 ) {
817 (None, None) => {}
818 (Some(_), None) | (None, Some(_)) => {
819 language_servers_to_restart.push((worktree, Arc::clone(language)));
820 }
821 (Some(current_lsp_settings), Some(new_lsp_settings)) => {
822 if current_lsp_settings != new_lsp_settings {
823 language_servers_to_restart.push((worktree, Arc::clone(language)));
824 }
825 }
826 }
827 }
828 }
829 }
830 self.current_lsp_settings = new_lsp_settings;
831
832 // Stop all newly-disabled language servers.
833 for (worktree_id, adapter_name) in language_servers_to_stop {
834 self.stop_language_server(worktree_id, adapter_name, cx)
835 .detach();
836 }
837
838 // Start all the newly-enabled language servers.
839 for (worktree, language) in language_servers_to_start {
840 let worktree_path = worktree.read(cx).abs_path();
841 self.start_language_servers(&worktree, worktree_path, language, cx);
842 }
843
844 // Restart all language servers with changed initialization options.
845 for (worktree, language) in language_servers_to_restart {
846 self.restart_language_servers(worktree, language, cx);
847 }
848
849 if !self.copilot_enabled && Copilot::global(cx).is_some() {
850 self.copilot_enabled = true;
851 for buffer in self.opened_buffers.values() {
852 if let Some(buffer) = buffer.upgrade(cx) {
853 self.register_buffer_with_copilot(&buffer, cx);
854 }
855 }
856 }
857
858 cx.notify();
859 }
860
861 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
862 self.opened_buffers
863 .get(&remote_id)
864 .and_then(|buffer| buffer.upgrade(cx))
865 }
866
867 pub fn languages(&self) -> &Arc<LanguageRegistry> {
868 &self.languages
869 }
870
871 pub fn client(&self) -> Arc<Client> {
872 self.client.clone()
873 }
874
875 pub fn user_store(&self) -> ModelHandle<UserStore> {
876 self.user_store.clone()
877 }
878
879 #[cfg(any(test, feature = "test-support"))]
880 pub fn opened_buffers(&self, cx: &AppContext) -> Vec<ModelHandle<Buffer>> {
881 self.opened_buffers
882 .values()
883 .filter_map(|b| b.upgrade(cx))
884 .collect()
885 }
886
887 #[cfg(any(test, feature = "test-support"))]
888 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
889 let path = path.into();
890 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
891 self.opened_buffers.iter().any(|(_, buffer)| {
892 if let Some(buffer) = buffer.upgrade(cx) {
893 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
894 if file.worktree == worktree && file.path() == &path.path {
895 return true;
896 }
897 }
898 }
899 false
900 })
901 } else {
902 false
903 }
904 }
905
906 pub fn fs(&self) -> &Arc<dyn Fs> {
907 &self.fs
908 }
909
910 pub fn remote_id(&self) -> Option<u64> {
911 match self.client_state.as_ref()? {
912 ProjectClientState::Local { remote_id, .. }
913 | ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
914 }
915 }
916
917 pub fn replica_id(&self) -> ReplicaId {
918 match &self.client_state {
919 Some(ProjectClientState::Remote { replica_id, .. }) => *replica_id,
920 _ => 0,
921 }
922 }
923
924 fn metadata_changed(&mut self, cx: &mut ModelContext<Self>) {
925 if let Some(ProjectClientState::Local { updates_tx, .. }) = &mut self.client_state {
926 updates_tx
927 .unbounded_send(LocalProjectUpdate::WorktreesChanged)
928 .ok();
929 }
930 cx.notify();
931 }
932
933 pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
934 &self.collaborators
935 }
936
937 /// Collect all worktrees, including ones that don't appear in the project panel
938 pub fn worktrees<'a>(
939 &'a self,
940 cx: &'a AppContext,
941 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
942 self.worktrees
943 .iter()
944 .filter_map(move |worktree| worktree.upgrade(cx))
945 }
946
947 /// Collect all user-visible worktrees, the ones that appear in the project panel
948 pub fn visible_worktrees<'a>(
949 &'a self,
950 cx: &'a AppContext,
951 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
952 self.worktrees.iter().filter_map(|worktree| {
953 worktree.upgrade(cx).and_then(|worktree| {
954 if worktree.read(cx).is_visible() {
955 Some(worktree)
956 } else {
957 None
958 }
959 })
960 })
961 }
962
963 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
964 self.visible_worktrees(cx)
965 .map(|tree| tree.read(cx).root_name())
966 }
967
968 pub fn worktree_for_id(
969 &self,
970 id: WorktreeId,
971 cx: &AppContext,
972 ) -> Option<ModelHandle<Worktree>> {
973 self.worktrees(cx)
974 .find(|worktree| worktree.read(cx).id() == id)
975 }
976
977 pub fn worktree_for_entry(
978 &self,
979 entry_id: ProjectEntryId,
980 cx: &AppContext,
981 ) -> Option<ModelHandle<Worktree>> {
982 self.worktrees(cx)
983 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
984 }
985
986 pub fn worktree_id_for_entry(
987 &self,
988 entry_id: ProjectEntryId,
989 cx: &AppContext,
990 ) -> Option<WorktreeId> {
991 self.worktree_for_entry(entry_id, cx)
992 .map(|worktree| worktree.read(cx).id())
993 }
994
995 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
996 paths.iter().all(|path| self.contains_path(path, cx))
997 }
998
999 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
1000 for worktree in self.worktrees(cx) {
1001 let worktree = worktree.read(cx).as_local();
1002 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
1003 return true;
1004 }
1005 }
1006 false
1007 }
1008
1009 pub fn create_entry(
1010 &mut self,
1011 project_path: impl Into<ProjectPath>,
1012 is_directory: bool,
1013 cx: &mut ModelContext<Self>,
1014 ) -> Option<Task<Result<Entry>>> {
1015 let project_path = project_path.into();
1016 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
1017 if self.is_local() {
1018 Some(worktree.update(cx, |worktree, cx| {
1019 worktree
1020 .as_local_mut()
1021 .unwrap()
1022 .create_entry(project_path.path, is_directory, cx)
1023 }))
1024 } else {
1025 let client = self.client.clone();
1026 let project_id = self.remote_id().unwrap();
1027 Some(cx.spawn_weak(|_, mut cx| async move {
1028 let response = client
1029 .request(proto::CreateProjectEntry {
1030 worktree_id: project_path.worktree_id.to_proto(),
1031 project_id,
1032 path: project_path.path.to_string_lossy().into(),
1033 is_directory,
1034 })
1035 .await?;
1036 let entry = response
1037 .entry
1038 .ok_or_else(|| anyhow!("missing entry in response"))?;
1039 worktree
1040 .update(&mut cx, |worktree, cx| {
1041 worktree.as_remote_mut().unwrap().insert_entry(
1042 entry,
1043 response.worktree_scan_id as usize,
1044 cx,
1045 )
1046 })
1047 .await
1048 }))
1049 }
1050 }
1051
1052 pub fn copy_entry(
1053 &mut self,
1054 entry_id: ProjectEntryId,
1055 new_path: impl Into<Arc<Path>>,
1056 cx: &mut ModelContext<Self>,
1057 ) -> Option<Task<Result<Entry>>> {
1058 let worktree = self.worktree_for_entry(entry_id, cx)?;
1059 let new_path = new_path.into();
1060 if self.is_local() {
1061 worktree.update(cx, |worktree, cx| {
1062 worktree
1063 .as_local_mut()
1064 .unwrap()
1065 .copy_entry(entry_id, new_path, cx)
1066 })
1067 } else {
1068 let client = self.client.clone();
1069 let project_id = self.remote_id().unwrap();
1070
1071 Some(cx.spawn_weak(|_, mut cx| async move {
1072 let response = client
1073 .request(proto::CopyProjectEntry {
1074 project_id,
1075 entry_id: entry_id.to_proto(),
1076 new_path: new_path.to_string_lossy().into(),
1077 })
1078 .await?;
1079 let entry = response
1080 .entry
1081 .ok_or_else(|| anyhow!("missing entry in response"))?;
1082 worktree
1083 .update(&mut cx, |worktree, cx| {
1084 worktree.as_remote_mut().unwrap().insert_entry(
1085 entry,
1086 response.worktree_scan_id as usize,
1087 cx,
1088 )
1089 })
1090 .await
1091 }))
1092 }
1093 }
1094
1095 pub fn rename_entry(
1096 &mut self,
1097 entry_id: ProjectEntryId,
1098 new_path: impl Into<Arc<Path>>,
1099 cx: &mut ModelContext<Self>,
1100 ) -> Option<Task<Result<Entry>>> {
1101 let worktree = self.worktree_for_entry(entry_id, cx)?;
1102 let new_path = new_path.into();
1103 if self.is_local() {
1104 worktree.update(cx, |worktree, cx| {
1105 worktree
1106 .as_local_mut()
1107 .unwrap()
1108 .rename_entry(entry_id, new_path, cx)
1109 })
1110 } else {
1111 let client = self.client.clone();
1112 let project_id = self.remote_id().unwrap();
1113
1114 Some(cx.spawn_weak(|_, mut cx| async move {
1115 let response = client
1116 .request(proto::RenameProjectEntry {
1117 project_id,
1118 entry_id: entry_id.to_proto(),
1119 new_path: new_path.to_string_lossy().into(),
1120 })
1121 .await?;
1122 let entry = response
1123 .entry
1124 .ok_or_else(|| anyhow!("missing entry in response"))?;
1125 worktree
1126 .update(&mut cx, |worktree, cx| {
1127 worktree.as_remote_mut().unwrap().insert_entry(
1128 entry,
1129 response.worktree_scan_id as usize,
1130 cx,
1131 )
1132 })
1133 .await
1134 }))
1135 }
1136 }
1137
1138 pub fn delete_entry(
1139 &mut self,
1140 entry_id: ProjectEntryId,
1141 cx: &mut ModelContext<Self>,
1142 ) -> Option<Task<Result<()>>> {
1143 let worktree = self.worktree_for_entry(entry_id, cx)?;
1144
1145 cx.emit(Event::DeletedEntry(entry_id));
1146
1147 if self.is_local() {
1148 worktree.update(cx, |worktree, cx| {
1149 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
1150 })
1151 } else {
1152 let client = self.client.clone();
1153 let project_id = self.remote_id().unwrap();
1154 Some(cx.spawn_weak(|_, mut cx| async move {
1155 let response = client
1156 .request(proto::DeleteProjectEntry {
1157 project_id,
1158 entry_id: entry_id.to_proto(),
1159 })
1160 .await?;
1161 worktree
1162 .update(&mut cx, move |worktree, cx| {
1163 worktree.as_remote_mut().unwrap().delete_entry(
1164 entry_id,
1165 response.worktree_scan_id as usize,
1166 cx,
1167 )
1168 })
1169 .await
1170 }))
1171 }
1172 }
1173
1174 pub fn expand_entry(
1175 &mut self,
1176 worktree_id: WorktreeId,
1177 entry_id: ProjectEntryId,
1178 cx: &mut ModelContext<Self>,
1179 ) -> Option<Task<Result<()>>> {
1180 let worktree = self.worktree_for_id(worktree_id, cx)?;
1181 if self.is_local() {
1182 worktree.update(cx, |worktree, cx| {
1183 worktree.as_local_mut().unwrap().expand_entry(entry_id, cx)
1184 })
1185 } else {
1186 let worktree = worktree.downgrade();
1187 let request = self.client.request(proto::ExpandProjectEntry {
1188 project_id: self.remote_id().unwrap(),
1189 entry_id: entry_id.to_proto(),
1190 });
1191 Some(cx.spawn_weak(|_, mut cx| async move {
1192 let response = request.await?;
1193 if let Some(worktree) = worktree.upgrade(&cx) {
1194 worktree
1195 .update(&mut cx, |worktree, _| {
1196 worktree
1197 .as_remote_mut()
1198 .unwrap()
1199 .wait_for_snapshot(response.worktree_scan_id as usize)
1200 })
1201 .await?;
1202 }
1203 Ok(())
1204 }))
1205 }
1206 }
1207
1208 pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Result<()> {
1209 if self.client_state.is_some() {
1210 return Err(anyhow!("project was already shared"));
1211 }
1212 self.client_subscriptions.push(
1213 self.client
1214 .subscribe_to_entity(project_id)?
1215 .set_model(&cx.handle(), &mut cx.to_async()),
1216 );
1217
1218 for open_buffer in self.opened_buffers.values_mut() {
1219 match open_buffer {
1220 OpenBuffer::Strong(_) => {}
1221 OpenBuffer::Weak(buffer) => {
1222 if let Some(buffer) = buffer.upgrade(cx) {
1223 *open_buffer = OpenBuffer::Strong(buffer);
1224 }
1225 }
1226 OpenBuffer::Operations(_) => unreachable!(),
1227 }
1228 }
1229
1230 for worktree_handle in self.worktrees.iter_mut() {
1231 match worktree_handle {
1232 WorktreeHandle::Strong(_) => {}
1233 WorktreeHandle::Weak(worktree) => {
1234 if let Some(worktree) = worktree.upgrade(cx) {
1235 *worktree_handle = WorktreeHandle::Strong(worktree);
1236 }
1237 }
1238 }
1239 }
1240
1241 for (server_id, status) in &self.language_server_statuses {
1242 self.client
1243 .send(proto::StartLanguageServer {
1244 project_id,
1245 server: Some(proto::LanguageServer {
1246 id: server_id.0 as u64,
1247 name: status.name.clone(),
1248 }),
1249 })
1250 .log_err();
1251 }
1252
1253 let store = cx.global::<SettingsStore>();
1254 for worktree in self.worktrees(cx) {
1255 let worktree_id = worktree.read(cx).id().to_proto();
1256 for (path, content) in store.local_settings(worktree.id()) {
1257 self.client
1258 .send(proto::UpdateWorktreeSettings {
1259 project_id,
1260 worktree_id,
1261 path: path.to_string_lossy().into(),
1262 content: Some(content),
1263 })
1264 .log_err();
1265 }
1266 }
1267
1268 let (updates_tx, mut updates_rx) = mpsc::unbounded();
1269 let client = self.client.clone();
1270 self.client_state = Some(ProjectClientState::Local {
1271 remote_id: project_id,
1272 updates_tx,
1273 _send_updates: cx.spawn_weak(move |this, mut cx| async move {
1274 while let Some(update) = updates_rx.next().await {
1275 let Some(this) = this.upgrade(&cx) else { break };
1276
1277 match update {
1278 LocalProjectUpdate::WorktreesChanged => {
1279 let worktrees = this
1280 .read_with(&cx, |this, cx| this.worktrees(cx).collect::<Vec<_>>());
1281 let update_project = this
1282 .read_with(&cx, |this, cx| {
1283 this.client.request(proto::UpdateProject {
1284 project_id,
1285 worktrees: this.worktree_metadata_protos(cx),
1286 })
1287 })
1288 .await;
1289 if update_project.is_ok() {
1290 for worktree in worktrees {
1291 worktree.update(&mut cx, |worktree, cx| {
1292 let worktree = worktree.as_local_mut().unwrap();
1293 worktree.share(project_id, cx).detach_and_log_err(cx)
1294 });
1295 }
1296 }
1297 }
1298 LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id } => {
1299 let buffer = this.update(&mut cx, |this, _| {
1300 let buffer = this.opened_buffers.get(&buffer_id).unwrap();
1301 let shared_buffers =
1302 this.shared_buffers.entry(peer_id).or_default();
1303 if shared_buffers.insert(buffer_id) {
1304 if let OpenBuffer::Strong(buffer) = buffer {
1305 Some(buffer.clone())
1306 } else {
1307 None
1308 }
1309 } else {
1310 None
1311 }
1312 });
1313
1314 let Some(buffer) = buffer else { continue };
1315 let operations =
1316 buffer.read_with(&cx, |b, cx| b.serialize_ops(None, cx));
1317 let operations = operations.await;
1318 let state = buffer.read_with(&cx, |buffer, _| buffer.to_proto());
1319
1320 let initial_state = proto::CreateBufferForPeer {
1321 project_id,
1322 peer_id: Some(peer_id),
1323 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
1324 };
1325 if client.send(initial_state).log_err().is_some() {
1326 let client = client.clone();
1327 cx.background()
1328 .spawn(async move {
1329 let mut chunks = split_operations(operations).peekable();
1330 while let Some(chunk) = chunks.next() {
1331 let is_last = chunks.peek().is_none();
1332 client.send(proto::CreateBufferForPeer {
1333 project_id,
1334 peer_id: Some(peer_id),
1335 variant: Some(
1336 proto::create_buffer_for_peer::Variant::Chunk(
1337 proto::BufferChunk {
1338 buffer_id,
1339 operations: chunk,
1340 is_last,
1341 },
1342 ),
1343 ),
1344 })?;
1345 }
1346 anyhow::Ok(())
1347 })
1348 .await
1349 .log_err();
1350 }
1351 }
1352 }
1353 }
1354 }),
1355 });
1356
1357 self.metadata_changed(cx);
1358 cx.emit(Event::RemoteIdChanged(Some(project_id)));
1359 cx.notify();
1360 Ok(())
1361 }
1362
1363 pub fn reshared(
1364 &mut self,
1365 message: proto::ResharedProject,
1366 cx: &mut ModelContext<Self>,
1367 ) -> Result<()> {
1368 self.shared_buffers.clear();
1369 self.set_collaborators_from_proto(message.collaborators, cx)?;
1370 self.metadata_changed(cx);
1371 Ok(())
1372 }
1373
1374 pub fn rejoined(
1375 &mut self,
1376 message: proto::RejoinedProject,
1377 message_id: u32,
1378 cx: &mut ModelContext<Self>,
1379 ) -> Result<()> {
1380 cx.update_global::<SettingsStore, _, _>(|store, cx| {
1381 for worktree in &self.worktrees {
1382 store
1383 .clear_local_settings(worktree.handle_id(), cx)
1384 .log_err();
1385 }
1386 });
1387
1388 self.join_project_response_message_id = message_id;
1389 self.set_worktrees_from_proto(message.worktrees, cx)?;
1390 self.set_collaborators_from_proto(message.collaborators, cx)?;
1391 self.language_server_statuses = message
1392 .language_servers
1393 .into_iter()
1394 .map(|server| {
1395 (
1396 LanguageServerId(server.id as usize),
1397 LanguageServerStatus {
1398 name: server.name,
1399 pending_work: Default::default(),
1400 has_pending_diagnostic_updates: false,
1401 progress_tokens: Default::default(),
1402 },
1403 )
1404 })
1405 .collect();
1406 self.buffer_ordered_messages_tx
1407 .unbounded_send(BufferOrderedMessage::Resync)
1408 .unwrap();
1409 cx.notify();
1410 Ok(())
1411 }
1412
1413 pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1414 self.unshare_internal(cx)?;
1415 self.metadata_changed(cx);
1416 cx.notify();
1417 Ok(())
1418 }
1419
1420 fn unshare_internal(&mut self, cx: &mut AppContext) -> Result<()> {
1421 if self.is_remote() {
1422 return Err(anyhow!("attempted to unshare a remote project"));
1423 }
1424
1425 if let Some(ProjectClientState::Local { remote_id, .. }) = self.client_state.take() {
1426 self.collaborators.clear();
1427 self.shared_buffers.clear();
1428 self.client_subscriptions.clear();
1429
1430 for worktree_handle in self.worktrees.iter_mut() {
1431 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1432 let is_visible = worktree.update(cx, |worktree, _| {
1433 worktree.as_local_mut().unwrap().unshare();
1434 worktree.is_visible()
1435 });
1436 if !is_visible {
1437 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1438 }
1439 }
1440 }
1441
1442 for open_buffer in self.opened_buffers.values_mut() {
1443 // Wake up any tasks waiting for peers' edits to this buffer.
1444 if let Some(buffer) = open_buffer.upgrade(cx) {
1445 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1446 }
1447
1448 if let OpenBuffer::Strong(buffer) = open_buffer {
1449 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1450 }
1451 }
1452
1453 self.client.send(proto::UnshareProject {
1454 project_id: remote_id,
1455 })?;
1456
1457 Ok(())
1458 } else {
1459 Err(anyhow!("attempted to unshare an unshared project"))
1460 }
1461 }
1462
1463 pub fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1464 self.disconnected_from_host_internal(cx);
1465 cx.emit(Event::DisconnectedFromHost);
1466 cx.notify();
1467 }
1468
1469 fn disconnected_from_host_internal(&mut self, cx: &mut AppContext) {
1470 if let Some(ProjectClientState::Remote {
1471 sharing_has_stopped,
1472 ..
1473 }) = &mut self.client_state
1474 {
1475 *sharing_has_stopped = true;
1476
1477 self.collaborators.clear();
1478
1479 for worktree in &self.worktrees {
1480 if let Some(worktree) = worktree.upgrade(cx) {
1481 worktree.update(cx, |worktree, _| {
1482 if let Some(worktree) = worktree.as_remote_mut() {
1483 worktree.disconnected_from_host();
1484 }
1485 });
1486 }
1487 }
1488
1489 for open_buffer in self.opened_buffers.values_mut() {
1490 // Wake up any tasks waiting for peers' edits to this buffer.
1491 if let Some(buffer) = open_buffer.upgrade(cx) {
1492 buffer.update(cx, |buffer, _| buffer.give_up_waiting());
1493 }
1494
1495 if let OpenBuffer::Strong(buffer) = open_buffer {
1496 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1497 }
1498 }
1499
1500 // Wake up all futures currently waiting on a buffer to get opened,
1501 // to give them a chance to fail now that we've disconnected.
1502 *self.opened_buffer.0.borrow_mut() = ();
1503 }
1504 }
1505
1506 pub fn close(&mut self, cx: &mut ModelContext<Self>) {
1507 cx.emit(Event::Closed);
1508 }
1509
1510 pub fn is_read_only(&self) -> bool {
1511 match &self.client_state {
1512 Some(ProjectClientState::Remote {
1513 sharing_has_stopped,
1514 ..
1515 }) => *sharing_has_stopped,
1516 _ => false,
1517 }
1518 }
1519
1520 pub fn is_local(&self) -> bool {
1521 match &self.client_state {
1522 Some(ProjectClientState::Remote { .. }) => false,
1523 _ => true,
1524 }
1525 }
1526
1527 pub fn is_remote(&self) -> bool {
1528 !self.is_local()
1529 }
1530
1531 pub fn create_buffer(
1532 &mut self,
1533 text: &str,
1534 language: Option<Arc<Language>>,
1535 cx: &mut ModelContext<Self>,
1536 ) -> Result<ModelHandle<Buffer>> {
1537 if self.is_remote() {
1538 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1539 }
1540
1541 let buffer = cx.add_model(|cx| {
1542 Buffer::new(self.replica_id(), text, cx)
1543 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1544 });
1545 self.register_buffer(&buffer, cx)?;
1546 Ok(buffer)
1547 }
1548
1549 pub fn open_path(
1550 &mut self,
1551 path: impl Into<ProjectPath>,
1552 cx: &mut ModelContext<Self>,
1553 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1554 let task = self.open_buffer(path, cx);
1555 cx.spawn_weak(|_, cx| async move {
1556 let buffer = task.await?;
1557 let project_entry_id = buffer
1558 .read_with(&cx, |buffer, cx| {
1559 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1560 })
1561 .ok_or_else(|| anyhow!("no project entry"))?;
1562
1563 let buffer: &AnyModelHandle = &buffer;
1564 Ok((project_entry_id, buffer.clone()))
1565 })
1566 }
1567
1568 pub fn open_local_buffer(
1569 &mut self,
1570 abs_path: impl AsRef<Path>,
1571 cx: &mut ModelContext<Self>,
1572 ) -> Task<Result<ModelHandle<Buffer>>> {
1573 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1574 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1575 } else {
1576 Task::ready(Err(anyhow!("no such path")))
1577 }
1578 }
1579
1580 pub fn open_buffer(
1581 &mut self,
1582 path: impl Into<ProjectPath>,
1583 cx: &mut ModelContext<Self>,
1584 ) -> Task<Result<ModelHandle<Buffer>>> {
1585 let project_path = path.into();
1586 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1587 worktree
1588 } else {
1589 return Task::ready(Err(anyhow!("no such worktree")));
1590 };
1591
1592 // If there is already a buffer for the given path, then return it.
1593 let existing_buffer = self.get_open_buffer(&project_path, cx);
1594 if let Some(existing_buffer) = existing_buffer {
1595 return Task::ready(Ok(existing_buffer));
1596 }
1597
1598 let loading_watch = match self.loading_buffers_by_path.entry(project_path.clone()) {
1599 // If the given path is already being loaded, then wait for that existing
1600 // task to complete and return the same buffer.
1601 hash_map::Entry::Occupied(e) => e.get().clone(),
1602
1603 // Otherwise, record the fact that this path is now being loaded.
1604 hash_map::Entry::Vacant(entry) => {
1605 let (mut tx, rx) = postage::watch::channel();
1606 entry.insert(rx.clone());
1607
1608 let load_buffer = if worktree.read(cx).is_local() {
1609 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1610 } else {
1611 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1612 };
1613
1614 cx.spawn(move |this, mut cx| async move {
1615 let load_result = load_buffer.await;
1616 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1617 // Record the fact that the buffer is no longer loading.
1618 this.loading_buffers_by_path.remove(&project_path);
1619 let buffer = load_result.map_err(Arc::new)?;
1620 Ok(buffer)
1621 }));
1622 })
1623 .detach();
1624 rx
1625 }
1626 };
1627
1628 cx.foreground().spawn(async move {
1629 wait_for_loading_buffer(loading_watch)
1630 .await
1631 .map_err(|error| anyhow!("{}", error))
1632 })
1633 }
1634
1635 fn open_local_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 buffer_id = post_inc(&mut self.next_buffer_id);
1642 let load_buffer = worktree.update(cx, |worktree, cx| {
1643 let worktree = worktree.as_local_mut().unwrap();
1644 worktree.load_buffer(buffer_id, path, cx)
1645 });
1646 cx.spawn(|this, mut cx| async move {
1647 let buffer = load_buffer.await?;
1648 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1649 Ok(buffer)
1650 })
1651 }
1652
1653 fn open_remote_buffer_internal(
1654 &mut self,
1655 path: &Arc<Path>,
1656 worktree: &ModelHandle<Worktree>,
1657 cx: &mut ModelContext<Self>,
1658 ) -> Task<Result<ModelHandle<Buffer>>> {
1659 let rpc = self.client.clone();
1660 let project_id = self.remote_id().unwrap();
1661 let remote_worktree_id = worktree.read(cx).id();
1662 let path = path.clone();
1663 let path_string = path.to_string_lossy().to_string();
1664 cx.spawn(|this, mut cx| async move {
1665 let response = rpc
1666 .request(proto::OpenBufferByPath {
1667 project_id,
1668 worktree_id: remote_worktree_id.to_proto(),
1669 path: path_string,
1670 })
1671 .await?;
1672 this.update(&mut cx, |this, cx| {
1673 this.wait_for_remote_buffer(response.buffer_id, cx)
1674 })
1675 .await
1676 })
1677 }
1678
1679 /// LanguageServerName is owned, because it is inserted into a map
1680 fn open_local_buffer_via_lsp(
1681 &mut self,
1682 abs_path: lsp::Url,
1683 language_server_id: LanguageServerId,
1684 language_server_name: LanguageServerName,
1685 cx: &mut ModelContext<Self>,
1686 ) -> Task<Result<ModelHandle<Buffer>>> {
1687 cx.spawn(|this, mut cx| async move {
1688 let abs_path = abs_path
1689 .to_file_path()
1690 .map_err(|_| anyhow!("can't convert URI to path"))?;
1691 let (worktree, relative_path) = if let Some(result) =
1692 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1693 {
1694 result
1695 } else {
1696 let worktree = this
1697 .update(&mut cx, |this, cx| {
1698 this.create_local_worktree(&abs_path, false, cx)
1699 })
1700 .await?;
1701 this.update(&mut cx, |this, cx| {
1702 this.language_server_ids.insert(
1703 (worktree.read(cx).id(), language_server_name),
1704 language_server_id,
1705 );
1706 });
1707 (worktree, PathBuf::new())
1708 };
1709
1710 let project_path = ProjectPath {
1711 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1712 path: relative_path.into(),
1713 };
1714 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1715 .await
1716 })
1717 }
1718
1719 pub fn open_buffer_by_id(
1720 &mut self,
1721 id: u64,
1722 cx: &mut ModelContext<Self>,
1723 ) -> Task<Result<ModelHandle<Buffer>>> {
1724 if let Some(buffer) = self.buffer_for_id(id, cx) {
1725 Task::ready(Ok(buffer))
1726 } else if self.is_local() {
1727 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1728 } else if let Some(project_id) = self.remote_id() {
1729 let request = self
1730 .client
1731 .request(proto::OpenBufferById { project_id, id });
1732 cx.spawn(|this, mut cx| async move {
1733 let buffer_id = request.await?.buffer_id;
1734 this.update(&mut cx, |this, cx| {
1735 this.wait_for_remote_buffer(buffer_id, cx)
1736 })
1737 .await
1738 })
1739 } else {
1740 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1741 }
1742 }
1743
1744 pub fn save_buffers(
1745 &self,
1746 buffers: HashSet<ModelHandle<Buffer>>,
1747 cx: &mut ModelContext<Self>,
1748 ) -> Task<Result<()>> {
1749 cx.spawn(|this, mut cx| async move {
1750 let save_tasks = buffers
1751 .into_iter()
1752 .map(|buffer| this.update(&mut cx, |this, cx| this.save_buffer(buffer, cx)));
1753 try_join_all(save_tasks).await?;
1754 Ok(())
1755 })
1756 }
1757
1758 pub fn save_buffer(
1759 &self,
1760 buffer: ModelHandle<Buffer>,
1761 cx: &mut ModelContext<Self>,
1762 ) -> Task<Result<()>> {
1763 let Some(file) = File::from_dyn(buffer.read(cx).file()) else {
1764 return Task::ready(Err(anyhow!("buffer doesn't have a file")));
1765 };
1766 let worktree = file.worktree.clone();
1767 let path = file.path.clone();
1768 worktree.update(cx, |worktree, cx| match worktree {
1769 Worktree::Local(worktree) => worktree.save_buffer(buffer, path, false, cx),
1770 Worktree::Remote(worktree) => worktree.save_buffer(buffer, cx),
1771 })
1772 }
1773
1774 pub fn save_buffer_as(
1775 &mut self,
1776 buffer: ModelHandle<Buffer>,
1777 abs_path: PathBuf,
1778 cx: &mut ModelContext<Self>,
1779 ) -> Task<Result<()>> {
1780 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1781 let old_file = File::from_dyn(buffer.read(cx).file())
1782 .filter(|f| f.is_local())
1783 .cloned();
1784 cx.spawn(|this, mut cx| async move {
1785 if let Some(old_file) = &old_file {
1786 this.update(&mut cx, |this, cx| {
1787 this.unregister_buffer_from_language_servers(&buffer, old_file, cx);
1788 });
1789 }
1790 let (worktree, path) = worktree_task.await?;
1791 worktree
1792 .update(&mut cx, |worktree, cx| match worktree {
1793 Worktree::Local(worktree) => {
1794 worktree.save_buffer(buffer.clone(), path.into(), true, cx)
1795 }
1796 Worktree::Remote(_) => panic!("cannot remote buffers as new files"),
1797 })
1798 .await?;
1799 this.update(&mut cx, |this, cx| {
1800 this.detect_language_for_buffer(&buffer, cx);
1801 this.register_buffer_with_language_servers(&buffer, cx);
1802 });
1803 Ok(())
1804 })
1805 }
1806
1807 pub fn get_open_buffer(
1808 &mut self,
1809 path: &ProjectPath,
1810 cx: &mut ModelContext<Self>,
1811 ) -> Option<ModelHandle<Buffer>> {
1812 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1813 self.opened_buffers.values().find_map(|buffer| {
1814 let buffer = buffer.upgrade(cx)?;
1815 let file = File::from_dyn(buffer.read(cx).file())?;
1816 if file.worktree == worktree && file.path() == &path.path {
1817 Some(buffer)
1818 } else {
1819 None
1820 }
1821 })
1822 }
1823
1824 fn register_buffer(
1825 &mut self,
1826 buffer: &ModelHandle<Buffer>,
1827 cx: &mut ModelContext<Self>,
1828 ) -> Result<()> {
1829 self.request_buffer_diff_recalculation(buffer, cx);
1830 buffer.update(cx, |buffer, _| {
1831 buffer.set_language_registry(self.languages.clone())
1832 });
1833
1834 let remote_id = buffer.read(cx).remote_id();
1835 let is_remote = self.is_remote();
1836 let open_buffer = if is_remote || self.is_shared() {
1837 OpenBuffer::Strong(buffer.clone())
1838 } else {
1839 OpenBuffer::Weak(buffer.downgrade())
1840 };
1841
1842 match self.opened_buffers.entry(remote_id) {
1843 hash_map::Entry::Vacant(entry) => {
1844 entry.insert(open_buffer);
1845 }
1846 hash_map::Entry::Occupied(mut entry) => {
1847 if let OpenBuffer::Operations(operations) = entry.get_mut() {
1848 buffer.update(cx, |b, cx| b.apply_ops(operations.drain(..), cx))?;
1849 } else if entry.get().upgrade(cx).is_some() {
1850 if is_remote {
1851 return Ok(());
1852 } else {
1853 debug_panic!("buffer {} was already registered", remote_id);
1854 Err(anyhow!("buffer {} was already registered", remote_id))?;
1855 }
1856 }
1857 entry.insert(open_buffer);
1858 }
1859 }
1860 cx.subscribe(buffer, |this, buffer, event, cx| {
1861 this.on_buffer_event(buffer, event, cx);
1862 })
1863 .detach();
1864
1865 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
1866 if file.is_local {
1867 self.local_buffer_ids_by_path.insert(
1868 ProjectPath {
1869 worktree_id: file.worktree_id(cx),
1870 path: file.path.clone(),
1871 },
1872 remote_id,
1873 );
1874
1875 self.local_buffer_ids_by_entry_id
1876 .insert(file.entry_id, remote_id);
1877 }
1878 }
1879
1880 self.detect_language_for_buffer(buffer, cx);
1881 self.register_buffer_with_language_servers(buffer, cx);
1882 self.register_buffer_with_copilot(buffer, cx);
1883 cx.observe_release(buffer, |this, buffer, cx| {
1884 if let Some(file) = File::from_dyn(buffer.file()) {
1885 if file.is_local() {
1886 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1887 for server in this.language_servers_for_buffer(buffer, cx) {
1888 server
1889 .1
1890 .notify::<lsp::notification::DidCloseTextDocument>(
1891 lsp::DidCloseTextDocumentParams {
1892 text_document: lsp::TextDocumentIdentifier::new(uri.clone()),
1893 },
1894 )
1895 .log_err();
1896 }
1897 }
1898 }
1899 })
1900 .detach();
1901
1902 *self.opened_buffer.0.borrow_mut() = ();
1903 Ok(())
1904 }
1905
1906 fn register_buffer_with_language_servers(
1907 &mut self,
1908 buffer_handle: &ModelHandle<Buffer>,
1909 cx: &mut ModelContext<Self>,
1910 ) {
1911 let buffer = buffer_handle.read(cx);
1912 let buffer_id = buffer.remote_id();
1913
1914 if let Some(file) = File::from_dyn(buffer.file()) {
1915 if !file.is_local() {
1916 return;
1917 }
1918
1919 let abs_path = file.abs_path(cx);
1920 let uri = lsp::Url::from_file_path(&abs_path)
1921 .unwrap_or_else(|()| panic!("Failed to register file {abs_path:?}"));
1922 let initial_snapshot = buffer.text_snapshot();
1923 let language = buffer.language().cloned();
1924 let worktree_id = file.worktree_id(cx);
1925
1926 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1927 for (server_id, diagnostics) in local_worktree.diagnostics_for_path(file.path()) {
1928 self.update_buffer_diagnostics(buffer_handle, server_id, None, diagnostics, cx)
1929 .log_err();
1930 }
1931 }
1932
1933 if let Some(language) = language {
1934 for adapter in language.lsp_adapters() {
1935 let language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1936 let server = self
1937 .language_server_ids
1938 .get(&(worktree_id, adapter.name.clone()))
1939 .and_then(|id| self.language_servers.get(id))
1940 .and_then(|server_state| {
1941 if let LanguageServerState::Running { server, .. } = server_state {
1942 Some(server.clone())
1943 } else {
1944 None
1945 }
1946 });
1947 let server = match server {
1948 Some(server) => server,
1949 None => continue,
1950 };
1951
1952 server
1953 .notify::<lsp::notification::DidOpenTextDocument>(
1954 lsp::DidOpenTextDocumentParams {
1955 text_document: lsp::TextDocumentItem::new(
1956 uri.clone(),
1957 language_id.unwrap_or_default(),
1958 0,
1959 initial_snapshot.text(),
1960 ),
1961 },
1962 )
1963 .log_err();
1964
1965 buffer_handle.update(cx, |buffer, cx| {
1966 buffer.set_completion_triggers(
1967 server
1968 .capabilities()
1969 .completion_provider
1970 .as_ref()
1971 .and_then(|provider| provider.trigger_characters.clone())
1972 .unwrap_or_default(),
1973 cx,
1974 );
1975 });
1976
1977 let snapshot = LspBufferSnapshot {
1978 version: 0,
1979 snapshot: initial_snapshot.clone(),
1980 };
1981 self.buffer_snapshots
1982 .entry(buffer_id)
1983 .or_default()
1984 .insert(server.server_id(), vec![snapshot]);
1985 }
1986 }
1987 }
1988 }
1989
1990 fn unregister_buffer_from_language_servers(
1991 &mut self,
1992 buffer: &ModelHandle<Buffer>,
1993 old_file: &File,
1994 cx: &mut ModelContext<Self>,
1995 ) {
1996 let old_path = match old_file.as_local() {
1997 Some(local) => local.abs_path(cx),
1998 None => return,
1999 };
2000
2001 buffer.update(cx, |buffer, cx| {
2002 let worktree_id = old_file.worktree_id(cx);
2003 let ids = &self.language_server_ids;
2004
2005 let language = buffer.language().cloned();
2006 let adapters = language.iter().flat_map(|language| language.lsp_adapters());
2007 for &server_id in adapters.flat_map(|a| ids.get(&(worktree_id, a.name.clone()))) {
2008 buffer.update_diagnostics(server_id, Default::default(), cx);
2009 }
2010
2011 self.buffer_snapshots.remove(&buffer.remote_id());
2012 let file_url = lsp::Url::from_file_path(old_path).unwrap();
2013 for (_, language_server) in self.language_servers_for_buffer(buffer, cx) {
2014 language_server
2015 .notify::<lsp::notification::DidCloseTextDocument>(
2016 lsp::DidCloseTextDocumentParams {
2017 text_document: lsp::TextDocumentIdentifier::new(file_url.clone()),
2018 },
2019 )
2020 .log_err();
2021 }
2022 });
2023 }
2024
2025 fn register_buffer_with_copilot(
2026 &self,
2027 buffer_handle: &ModelHandle<Buffer>,
2028 cx: &mut ModelContext<Self>,
2029 ) {
2030 if let Some(copilot) = Copilot::global(cx) {
2031 copilot.update(cx, |copilot, cx| copilot.register_buffer(buffer_handle, cx));
2032 }
2033 }
2034
2035 async fn send_buffer_ordered_messages(
2036 this: WeakModelHandle<Self>,
2037 rx: UnboundedReceiver<BufferOrderedMessage>,
2038 mut cx: AsyncAppContext,
2039 ) -> Option<()> {
2040 const MAX_BATCH_SIZE: usize = 128;
2041
2042 let mut operations_by_buffer_id = HashMap::default();
2043 async fn flush_operations(
2044 this: &ModelHandle<Project>,
2045 operations_by_buffer_id: &mut HashMap<u64, Vec<proto::Operation>>,
2046 needs_resync_with_host: &mut bool,
2047 is_local: bool,
2048 cx: &AsyncAppContext,
2049 ) {
2050 for (buffer_id, operations) in operations_by_buffer_id.drain() {
2051 let request = this.read_with(cx, |this, _| {
2052 let project_id = this.remote_id()?;
2053 Some(this.client.request(proto::UpdateBuffer {
2054 buffer_id,
2055 project_id,
2056 operations,
2057 }))
2058 });
2059 if let Some(request) = request {
2060 if request.await.is_err() && !is_local {
2061 *needs_resync_with_host = true;
2062 break;
2063 }
2064 }
2065 }
2066 }
2067
2068 let mut needs_resync_with_host = false;
2069 let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
2070
2071 while let Some(changes) = changes.next().await {
2072 let this = this.upgrade(&mut cx)?;
2073 let is_local = this.read_with(&cx, |this, _| this.is_local());
2074
2075 for change in changes {
2076 match change {
2077 BufferOrderedMessage::Operation {
2078 buffer_id,
2079 operation,
2080 } => {
2081 if needs_resync_with_host {
2082 continue;
2083 }
2084
2085 operations_by_buffer_id
2086 .entry(buffer_id)
2087 .or_insert(Vec::new())
2088 .push(operation);
2089 }
2090
2091 BufferOrderedMessage::Resync => {
2092 operations_by_buffer_id.clear();
2093 if this
2094 .update(&mut cx, |this, cx| this.synchronize_remote_buffers(cx))
2095 .await
2096 .is_ok()
2097 {
2098 needs_resync_with_host = false;
2099 }
2100 }
2101
2102 BufferOrderedMessage::LanguageServerUpdate {
2103 language_server_id,
2104 message,
2105 } => {
2106 flush_operations(
2107 &this,
2108 &mut operations_by_buffer_id,
2109 &mut needs_resync_with_host,
2110 is_local,
2111 &cx,
2112 )
2113 .await;
2114
2115 this.read_with(&cx, |this, _| {
2116 if let Some(project_id) = this.remote_id() {
2117 this.client
2118 .send(proto::UpdateLanguageServer {
2119 project_id,
2120 language_server_id: language_server_id.0 as u64,
2121 variant: Some(message),
2122 })
2123 .log_err();
2124 }
2125 });
2126 }
2127 }
2128 }
2129
2130 flush_operations(
2131 &this,
2132 &mut operations_by_buffer_id,
2133 &mut needs_resync_with_host,
2134 is_local,
2135 &cx,
2136 )
2137 .await;
2138 }
2139
2140 None
2141 }
2142
2143 fn on_buffer_event(
2144 &mut self,
2145 buffer: ModelHandle<Buffer>,
2146 event: &BufferEvent,
2147 cx: &mut ModelContext<Self>,
2148 ) -> Option<()> {
2149 if matches!(
2150 event,
2151 BufferEvent::Edited { .. } | BufferEvent::Reloaded | BufferEvent::DiffBaseChanged
2152 ) {
2153 self.request_buffer_diff_recalculation(&buffer, cx);
2154 }
2155
2156 match event {
2157 BufferEvent::Operation(operation) => {
2158 self.buffer_ordered_messages_tx
2159 .unbounded_send(BufferOrderedMessage::Operation {
2160 buffer_id: buffer.read(cx).remote_id(),
2161 operation: language::proto::serialize_operation(operation),
2162 })
2163 .ok();
2164 }
2165
2166 BufferEvent::Edited { .. } => {
2167 let buffer = buffer.read(cx);
2168 let file = File::from_dyn(buffer.file())?;
2169 let abs_path = file.as_local()?.abs_path(cx);
2170 let uri = lsp::Url::from_file_path(abs_path).unwrap();
2171 let next_snapshot = buffer.text_snapshot();
2172
2173 let language_servers: Vec<_> = self
2174 .language_servers_for_buffer(buffer, cx)
2175 .map(|i| i.1.clone())
2176 .collect();
2177
2178 for language_server in language_servers {
2179 let language_server = language_server.clone();
2180
2181 let buffer_snapshots = self
2182 .buffer_snapshots
2183 .get_mut(&buffer.remote_id())
2184 .and_then(|m| m.get_mut(&language_server.server_id()))?;
2185 let previous_snapshot = buffer_snapshots.last()?;
2186 let next_version = previous_snapshot.version + 1;
2187
2188 let content_changes = buffer
2189 .edits_since::<(PointUtf16, usize)>(previous_snapshot.snapshot.version())
2190 .map(|edit| {
2191 let edit_start = edit.new.start.0;
2192 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
2193 let new_text = next_snapshot
2194 .text_for_range(edit.new.start.1..edit.new.end.1)
2195 .collect();
2196 lsp::TextDocumentContentChangeEvent {
2197 range: Some(lsp::Range::new(
2198 point_to_lsp(edit_start),
2199 point_to_lsp(edit_end),
2200 )),
2201 range_length: None,
2202 text: new_text,
2203 }
2204 })
2205 .collect();
2206
2207 buffer_snapshots.push(LspBufferSnapshot {
2208 version: next_version,
2209 snapshot: next_snapshot.clone(),
2210 });
2211
2212 language_server
2213 .notify::<lsp::notification::DidChangeTextDocument>(
2214 lsp::DidChangeTextDocumentParams {
2215 text_document: lsp::VersionedTextDocumentIdentifier::new(
2216 uri.clone(),
2217 next_version,
2218 ),
2219 content_changes,
2220 },
2221 )
2222 .log_err();
2223 }
2224 }
2225
2226 BufferEvent::Saved => {
2227 let file = File::from_dyn(buffer.read(cx).file())?;
2228 let worktree_id = file.worktree_id(cx);
2229 let abs_path = file.as_local()?.abs_path(cx);
2230 let text_document = lsp::TextDocumentIdentifier {
2231 uri: lsp::Url::from_file_path(abs_path).unwrap(),
2232 };
2233
2234 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
2235 server
2236 .notify::<lsp::notification::DidSaveTextDocument>(
2237 lsp::DidSaveTextDocumentParams {
2238 text_document: text_document.clone(),
2239 text: None,
2240 },
2241 )
2242 .log_err();
2243 }
2244
2245 let language_server_ids = self.language_server_ids_for_buffer(buffer.read(cx), cx);
2246 for language_server_id in language_server_ids {
2247 if let Some(LanguageServerState::Running {
2248 adapter,
2249 simulate_disk_based_diagnostics_completion,
2250 ..
2251 }) = self.language_servers.get_mut(&language_server_id)
2252 {
2253 // After saving a buffer using a language server that doesn't provide
2254 // a disk-based progress token, kick off a timer that will reset every
2255 // time the buffer is saved. If the timer eventually fires, simulate
2256 // disk-based diagnostics being finished so that other pieces of UI
2257 // (e.g., project diagnostics view, diagnostic status bar) can update.
2258 // We don't emit an event right away because the language server might take
2259 // some time to publish diagnostics.
2260 if adapter.disk_based_diagnostics_progress_token.is_none() {
2261 const DISK_BASED_DIAGNOSTICS_DEBOUNCE: Duration =
2262 Duration::from_secs(1);
2263
2264 let task = cx.spawn_weak(|this, mut cx| async move {
2265 cx.background().timer(DISK_BASED_DIAGNOSTICS_DEBOUNCE).await;
2266 if let Some(this) = this.upgrade(&cx) {
2267 this.update(&mut cx, |this, cx| {
2268 this.disk_based_diagnostics_finished(
2269 language_server_id,
2270 cx,
2271 );
2272 this.buffer_ordered_messages_tx
2273 .unbounded_send(
2274 BufferOrderedMessage::LanguageServerUpdate {
2275 language_server_id,
2276 message:proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(Default::default())
2277 },
2278 )
2279 .ok();
2280 });
2281 }
2282 });
2283 *simulate_disk_based_diagnostics_completion = Some(task);
2284 }
2285 }
2286 }
2287 }
2288
2289 _ => {}
2290 }
2291
2292 None
2293 }
2294
2295 fn request_buffer_diff_recalculation(
2296 &mut self,
2297 buffer: &ModelHandle<Buffer>,
2298 cx: &mut ModelContext<Self>,
2299 ) {
2300 self.buffers_needing_diff.insert(buffer.downgrade());
2301 let first_insertion = self.buffers_needing_diff.len() == 1;
2302
2303 let settings = settings::get::<ProjectSettings>(cx);
2304 let delay = if let Some(delay) = settings.git.gutter_debounce {
2305 delay
2306 } else {
2307 if first_insertion {
2308 let this = cx.weak_handle();
2309 cx.defer(move |cx| {
2310 if let Some(this) = this.upgrade(cx) {
2311 this.update(cx, |this, cx| {
2312 this.recalculate_buffer_diffs(cx).detach();
2313 });
2314 }
2315 });
2316 }
2317 return;
2318 };
2319
2320 const MIN_DELAY: u64 = 50;
2321 let delay = delay.max(MIN_DELAY);
2322 let duration = Duration::from_millis(delay);
2323
2324 self.git_diff_debouncer
2325 .fire_new(duration, cx, move |this, cx| {
2326 this.recalculate_buffer_diffs(cx)
2327 });
2328 }
2329
2330 fn recalculate_buffer_diffs(&mut self, cx: &mut ModelContext<Self>) -> Task<()> {
2331 cx.spawn(|this, mut cx| async move {
2332 let buffers: Vec<_> = this.update(&mut cx, |this, _| {
2333 this.buffers_needing_diff.drain().collect()
2334 });
2335
2336 let tasks: Vec<_> = this.update(&mut cx, |_, cx| {
2337 buffers
2338 .iter()
2339 .filter_map(|buffer| {
2340 let buffer = buffer.upgrade(cx)?;
2341 buffer.update(cx, |buffer, cx| buffer.git_diff_recalc(cx))
2342 })
2343 .collect()
2344 });
2345
2346 futures::future::join_all(tasks).await;
2347
2348 this.update(&mut cx, |this, cx| {
2349 if !this.buffers_needing_diff.is_empty() {
2350 this.recalculate_buffer_diffs(cx).detach();
2351 } else {
2352 // TODO: Would a `ModelContext<Project>.notify()` suffice here?
2353 for buffer in buffers {
2354 if let Some(buffer) = buffer.upgrade(cx) {
2355 buffer.update(cx, |_, cx| cx.notify());
2356 }
2357 }
2358 }
2359 });
2360 })
2361 }
2362
2363 fn language_servers_for_worktree(
2364 &self,
2365 worktree_id: WorktreeId,
2366 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
2367 self.language_server_ids
2368 .iter()
2369 .filter_map(move |((language_server_worktree_id, _), id)| {
2370 if *language_server_worktree_id == worktree_id {
2371 if let Some(LanguageServerState::Running {
2372 adapter,
2373 language,
2374 server,
2375 ..
2376 }) = self.language_servers.get(id)
2377 {
2378 return Some((adapter, language, server));
2379 }
2380 }
2381 None
2382 })
2383 }
2384
2385 fn maintain_buffer_languages(
2386 languages: Arc<LanguageRegistry>,
2387 cx: &mut ModelContext<Project>,
2388 ) -> Task<()> {
2389 let mut subscription = languages.subscribe();
2390 let mut prev_reload_count = languages.reload_count();
2391 cx.spawn_weak(|project, mut cx| async move {
2392 while let Some(()) = subscription.next().await {
2393 if let Some(project) = project.upgrade(&cx) {
2394 // If the language registry has been reloaded, then remove and
2395 // re-assign the languages on all open buffers.
2396 let reload_count = languages.reload_count();
2397 if reload_count > prev_reload_count {
2398 prev_reload_count = reload_count;
2399 project.update(&mut cx, |this, cx| {
2400 let buffers = this
2401 .opened_buffers
2402 .values()
2403 .filter_map(|b| b.upgrade(cx))
2404 .collect::<Vec<_>>();
2405 for buffer in buffers {
2406 if let Some(f) = File::from_dyn(buffer.read(cx).file()).cloned() {
2407 this.unregister_buffer_from_language_servers(&buffer, &f, cx);
2408 buffer.update(cx, |buffer, cx| buffer.set_language(None, cx));
2409 }
2410 }
2411 });
2412 }
2413
2414 project.update(&mut cx, |project, cx| {
2415 let mut plain_text_buffers = Vec::new();
2416 let mut buffers_with_unknown_injections = Vec::new();
2417 for buffer in project.opened_buffers.values() {
2418 if let Some(handle) = buffer.upgrade(cx) {
2419 let buffer = &handle.read(cx);
2420 if buffer.language().is_none()
2421 || buffer.language() == Some(&*language::PLAIN_TEXT)
2422 {
2423 plain_text_buffers.push(handle);
2424 } else if buffer.contains_unknown_injections() {
2425 buffers_with_unknown_injections.push(handle);
2426 }
2427 }
2428 }
2429
2430 for buffer in plain_text_buffers {
2431 project.detect_language_for_buffer(&buffer, cx);
2432 project.register_buffer_with_language_servers(&buffer, cx);
2433 }
2434
2435 for buffer in buffers_with_unknown_injections {
2436 buffer.update(cx, |buffer, cx| buffer.reparse(cx));
2437 }
2438 });
2439 }
2440 }
2441 })
2442 }
2443
2444 fn maintain_workspace_config(
2445 languages: Arc<LanguageRegistry>,
2446 cx: &mut ModelContext<Project>,
2447 ) -> Task<()> {
2448 let (mut settings_changed_tx, mut settings_changed_rx) = watch::channel();
2449 let _ = postage::stream::Stream::try_recv(&mut settings_changed_rx);
2450
2451 let settings_observation = cx.observe_global::<SettingsStore, _>(move |_, _| {
2452 *settings_changed_tx.borrow_mut() = ();
2453 });
2454 cx.spawn_weak(|this, mut cx| async move {
2455 while let Some(_) = settings_changed_rx.next().await {
2456 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2457 if let Some(this) = this.upgrade(&cx) {
2458 this.read_with(&cx, |this, _| {
2459 for server_state in this.language_servers.values() {
2460 if let LanguageServerState::Running { server, .. } = server_state {
2461 server
2462 .notify::<lsp::notification::DidChangeConfiguration>(
2463 lsp::DidChangeConfigurationParams {
2464 settings: workspace_config.clone(),
2465 },
2466 )
2467 .ok();
2468 }
2469 }
2470 })
2471 } else {
2472 break;
2473 }
2474 }
2475
2476 drop(settings_observation);
2477 })
2478 }
2479
2480 fn detect_language_for_buffer(
2481 &mut self,
2482 buffer_handle: &ModelHandle<Buffer>,
2483 cx: &mut ModelContext<Self>,
2484 ) -> Option<()> {
2485 // If the buffer has a language, set it and start the language server if we haven't already.
2486 let buffer = buffer_handle.read(cx);
2487 let full_path = buffer.file()?.full_path(cx);
2488 let content = buffer.as_rope();
2489 let new_language = self
2490 .languages
2491 .language_for_file(&full_path, Some(content))
2492 .now_or_never()?
2493 .ok()?;
2494 self.set_language_for_buffer(buffer_handle, new_language, cx);
2495 None
2496 }
2497
2498 pub fn set_language_for_buffer(
2499 &mut self,
2500 buffer: &ModelHandle<Buffer>,
2501 new_language: Arc<Language>,
2502 cx: &mut ModelContext<Self>,
2503 ) {
2504 buffer.update(cx, |buffer, cx| {
2505 if buffer.language().map_or(true, |old_language| {
2506 !Arc::ptr_eq(old_language, &new_language)
2507 }) {
2508 buffer.set_language(Some(new_language.clone()), cx);
2509 }
2510 });
2511
2512 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
2513 let worktree = file.worktree.clone();
2514 if let Some(tree) = worktree.read(cx).as_local() {
2515 self.start_language_servers(&worktree, tree.abs_path().clone(), new_language, cx);
2516 }
2517 }
2518 }
2519
2520 fn start_language_servers(
2521 &mut self,
2522 worktree: &ModelHandle<Worktree>,
2523 worktree_path: Arc<Path>,
2524 language: Arc<Language>,
2525 cx: &mut ModelContext<Self>,
2526 ) {
2527 let root_file = worktree.update(cx, |tree, cx| tree.root_file(cx));
2528 let settings = language_settings(Some(&language), root_file.map(|f| f as _).as_ref(), cx);
2529 if !settings.enable_language_server {
2530 return;
2531 }
2532
2533 let worktree_id = worktree.read(cx).id();
2534 for adapter in language.lsp_adapters() {
2535 self.start_language_server(
2536 worktree_id,
2537 worktree_path.clone(),
2538 adapter.clone(),
2539 language.clone(),
2540 cx,
2541 );
2542 }
2543 }
2544
2545 fn start_language_server(
2546 &mut self,
2547 worktree_id: WorktreeId,
2548 worktree_path: Arc<Path>,
2549 adapter: Arc<CachedLspAdapter>,
2550 language: Arc<Language>,
2551 cx: &mut ModelContext<Self>,
2552 ) {
2553 let key = (worktree_id, adapter.name.clone());
2554 if self.language_server_ids.contains_key(&key) {
2555 return;
2556 }
2557
2558 let pending_server = match self.languages.create_pending_language_server(
2559 language.clone(),
2560 adapter.clone(),
2561 worktree_path,
2562 ProjectLspAdapterDelegate::new(self, cx),
2563 cx,
2564 ) {
2565 Some(pending_server) => pending_server,
2566 None => return,
2567 };
2568
2569 let project_settings = settings::get::<ProjectSettings>(cx);
2570 let lsp = project_settings.lsp.get(&adapter.name.0);
2571 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
2572
2573 let mut initialization_options = adapter.initialization_options.clone();
2574 match (&mut initialization_options, override_options) {
2575 (Some(initialization_options), Some(override_options)) => {
2576 merge_json_value_into(override_options, initialization_options);
2577 }
2578 (None, override_options) => initialization_options = override_options,
2579 _ => {}
2580 }
2581
2582 let server_id = pending_server.server_id;
2583 let container_dir = pending_server.container_dir.clone();
2584 let state = LanguageServerState::Starting({
2585 let adapter = adapter.clone();
2586 let server_name = adapter.name.0.clone();
2587 let languages = self.languages.clone();
2588 let language = language.clone();
2589 let key = key.clone();
2590
2591 cx.spawn_weak(|this, mut cx| async move {
2592 let result = Self::setup_and_insert_language_server(
2593 this,
2594 initialization_options,
2595 pending_server,
2596 adapter.clone(),
2597 languages,
2598 language.clone(),
2599 server_id,
2600 key,
2601 &mut cx,
2602 )
2603 .await;
2604
2605 match result {
2606 Ok(server) => server,
2607
2608 Err(err) => {
2609 log::error!("failed to start language server {:?}: {}", server_name, err);
2610
2611 if let Some(this) = this.upgrade(&cx) {
2612 if let Some(container_dir) = container_dir {
2613 let installation_test_binary = adapter
2614 .installation_test_binary(container_dir.to_path_buf())
2615 .await;
2616
2617 this.update(&mut cx, |_, cx| {
2618 Self::check_errored_server(
2619 language,
2620 adapter,
2621 server_id,
2622 installation_test_binary,
2623 cx,
2624 )
2625 });
2626 }
2627 }
2628
2629 None
2630 }
2631 }
2632 })
2633 });
2634
2635 self.language_servers.insert(server_id, state);
2636 self.language_server_ids.insert(key, server_id);
2637 }
2638
2639 fn reinstall_language_server(
2640 &mut self,
2641 language: Arc<Language>,
2642 adapter: Arc<CachedLspAdapter>,
2643 server_id: LanguageServerId,
2644 cx: &mut ModelContext<Self>,
2645 ) -> Option<Task<()>> {
2646 log::info!("beginning to reinstall server");
2647
2648 let existing_server = match self.language_servers.remove(&server_id) {
2649 Some(LanguageServerState::Running { server, .. }) => Some(server),
2650 _ => None,
2651 };
2652
2653 for worktree in &self.worktrees {
2654 if let Some(worktree) = worktree.upgrade(cx) {
2655 let key = (worktree.read(cx).id(), adapter.name.clone());
2656 self.language_server_ids.remove(&key);
2657 }
2658 }
2659
2660 Some(cx.spawn(move |this, mut cx| async move {
2661 if let Some(task) = existing_server.and_then(|server| server.shutdown()) {
2662 log::info!("shutting down existing server");
2663 task.await;
2664 }
2665
2666 // TODO: This is race-safe with regards to preventing new instances from
2667 // starting while deleting, but existing instances in other projects are going
2668 // to be very confused and messed up
2669 this.update(&mut cx, |this, cx| {
2670 this.languages.delete_server_container(adapter.clone(), cx)
2671 })
2672 .await;
2673
2674 this.update(&mut cx, |this, mut cx| {
2675 let worktrees = this.worktrees.clone();
2676 for worktree in worktrees {
2677 let worktree = match worktree.upgrade(cx) {
2678 Some(worktree) => worktree.read(cx),
2679 None => continue,
2680 };
2681 let worktree_id = worktree.id();
2682 let root_path = worktree.abs_path();
2683
2684 this.start_language_server(
2685 worktree_id,
2686 root_path,
2687 adapter.clone(),
2688 language.clone(),
2689 &mut cx,
2690 );
2691 }
2692 })
2693 }))
2694 }
2695
2696 async fn setup_and_insert_language_server(
2697 this: WeakModelHandle<Self>,
2698 initialization_options: Option<serde_json::Value>,
2699 pending_server: PendingLanguageServer,
2700 adapter: Arc<CachedLspAdapter>,
2701 languages: Arc<LanguageRegistry>,
2702 language: Arc<Language>,
2703 server_id: LanguageServerId,
2704 key: (WorktreeId, LanguageServerName),
2705 cx: &mut AsyncAppContext,
2706 ) -> Result<Option<Arc<LanguageServer>>> {
2707 let setup = Self::setup_pending_language_server(
2708 this,
2709 initialization_options,
2710 pending_server,
2711 adapter.clone(),
2712 languages,
2713 server_id,
2714 cx,
2715 );
2716
2717 let language_server = match setup.await? {
2718 Some(language_server) => language_server,
2719 None => return Ok(None),
2720 };
2721 let this = match this.upgrade(cx) {
2722 Some(this) => this,
2723 None => return Err(anyhow!("failed to upgrade project handle")),
2724 };
2725
2726 this.update(cx, |this, cx| {
2727 this.insert_newly_running_language_server(
2728 language,
2729 adapter,
2730 language_server.clone(),
2731 server_id,
2732 key,
2733 cx,
2734 )
2735 })?;
2736
2737 Ok(Some(language_server))
2738 }
2739
2740 async fn setup_pending_language_server(
2741 this: WeakModelHandle<Self>,
2742 initialization_options: Option<serde_json::Value>,
2743 pending_server: PendingLanguageServer,
2744 adapter: Arc<CachedLspAdapter>,
2745 languages: Arc<LanguageRegistry>,
2746 server_id: LanguageServerId,
2747 cx: &mut AsyncAppContext,
2748 ) -> Result<Option<Arc<LanguageServer>>> {
2749 let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
2750 let language_server = match pending_server.task.await? {
2751 Some(server) => server,
2752 None => return Ok(None),
2753 };
2754
2755 language_server
2756 .on_notification::<lsp::notification::LogMessage, _>({
2757 move |params, mut cx| {
2758 if let Some(this) = this.upgrade(&cx) {
2759 this.update(&mut cx, |_, cx| {
2760 cx.emit(Event::LanguageServerLog(server_id, params.message))
2761 });
2762 }
2763 }
2764 })
2765 .detach();
2766
2767 language_server
2768 .on_notification::<lsp::notification::PublishDiagnostics, _>({
2769 let adapter = adapter.clone();
2770 move |mut params, mut cx| {
2771 let this = this;
2772 let adapter = adapter.clone();
2773 adapter.process_diagnostics(&mut params);
2774 if let Some(this) = this.upgrade(&cx) {
2775 this.update(&mut cx, |this, cx| {
2776 this.update_diagnostics(
2777 server_id,
2778 params,
2779 &adapter.disk_based_diagnostic_sources,
2780 cx,
2781 )
2782 .log_err();
2783 });
2784 }
2785 }
2786 })
2787 .detach();
2788
2789 language_server
2790 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2791 let languages = languages.clone();
2792 move |params, mut cx| {
2793 let languages = languages.clone();
2794 async move {
2795 let workspace_config =
2796 cx.update(|cx| languages.workspace_configuration(cx)).await;
2797 Ok(params
2798 .items
2799 .into_iter()
2800 .map(|item| {
2801 if let Some(section) = &item.section {
2802 workspace_config
2803 .get(section)
2804 .cloned()
2805 .unwrap_or(serde_json::Value::Null)
2806 } else {
2807 workspace_config.clone()
2808 }
2809 })
2810 .collect())
2811 }
2812 }
2813 })
2814 .detach();
2815
2816 // Even though we don't have handling for these requests, respond to them to
2817 // avoid stalling any language server like `gopls` which waits for a response
2818 // to these requests when initializing.
2819 language_server
2820 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>(
2821 move |params, mut cx| async move {
2822 if let Some(this) = this.upgrade(&cx) {
2823 this.update(&mut cx, |this, _| {
2824 if let Some(status) = this.language_server_statuses.get_mut(&server_id)
2825 {
2826 if let lsp::NumberOrString::String(token) = params.token {
2827 status.progress_tokens.insert(token);
2828 }
2829 }
2830 });
2831 }
2832 Ok(())
2833 },
2834 )
2835 .detach();
2836 language_server
2837 .on_request::<lsp::request::RegisterCapability, _, _>({
2838 move |params, mut cx| async move {
2839 let this = this
2840 .upgrade(&cx)
2841 .ok_or_else(|| anyhow!("project dropped"))?;
2842 for reg in params.registrations {
2843 if reg.method == "workspace/didChangeWatchedFiles" {
2844 if let Some(options) = reg.register_options {
2845 let options = serde_json::from_value(options)?;
2846 this.update(&mut cx, |this, cx| {
2847 this.on_lsp_did_change_watched_files(server_id, options, cx);
2848 });
2849 }
2850 }
2851 }
2852 Ok(())
2853 }
2854 })
2855 .detach();
2856
2857 language_server
2858 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2859 let adapter = adapter.clone();
2860 move |params, cx| {
2861 Self::on_lsp_workspace_edit(this, params, server_id, adapter.clone(), cx)
2862 }
2863 })
2864 .detach();
2865
2866 language_server
2867 .on_request::<lsp::request::InlayHintRefreshRequest, _, _>({
2868 move |(), mut cx| async move {
2869 let this = this
2870 .upgrade(&cx)
2871 .ok_or_else(|| anyhow!("project dropped"))?;
2872 this.update(&mut cx, |project, cx| {
2873 cx.emit(Event::RefreshInlays);
2874 project.remote_id().map(|project_id| {
2875 project.client.send(proto::RefreshInlayHints { project_id })
2876 })
2877 })
2878 .transpose()?;
2879 Ok(())
2880 }
2881 })
2882 .detach();
2883
2884 let disk_based_diagnostics_progress_token =
2885 adapter.disk_based_diagnostics_progress_token.clone();
2886
2887 language_server
2888 .on_notification::<lsp::notification::Progress, _>(move |params, mut cx| {
2889 if let Some(this) = this.upgrade(&cx) {
2890 this.update(&mut cx, |this, cx| {
2891 this.on_lsp_progress(
2892 params,
2893 server_id,
2894 disk_based_diagnostics_progress_token.clone(),
2895 cx,
2896 );
2897 });
2898 }
2899 })
2900 .detach();
2901
2902 language_server
2903 .notify::<lsp::notification::DidChangeConfiguration>(
2904 lsp::DidChangeConfigurationParams {
2905 settings: workspace_config,
2906 },
2907 )
2908 .ok();
2909
2910 Ok(Some(
2911 language_server.initialize(initialization_options).await?,
2912 ))
2913 }
2914
2915 fn insert_newly_running_language_server(
2916 &mut self,
2917 language: Arc<Language>,
2918 adapter: Arc<CachedLspAdapter>,
2919 language_server: Arc<LanguageServer>,
2920 server_id: LanguageServerId,
2921 key: (WorktreeId, LanguageServerName),
2922 cx: &mut ModelContext<Self>,
2923 ) -> Result<()> {
2924 // If the language server for this key doesn't match the server id, don't store the
2925 // server. Which will cause it to be dropped, killing the process
2926 if self
2927 .language_server_ids
2928 .get(&key)
2929 .map(|id| id != &server_id)
2930 .unwrap_or(false)
2931 {
2932 return Ok(());
2933 }
2934
2935 // Update language_servers collection with Running variant of LanguageServerState
2936 // indicating that the server is up and running and ready
2937 self.language_servers.insert(
2938 server_id,
2939 LanguageServerState::Running {
2940 adapter: adapter.clone(),
2941 language: language.clone(),
2942 watched_paths: Default::default(),
2943 server: language_server.clone(),
2944 simulate_disk_based_diagnostics_completion: None,
2945 },
2946 );
2947
2948 self.language_server_statuses.insert(
2949 server_id,
2950 LanguageServerStatus {
2951 name: language_server.name().to_string(),
2952 pending_work: Default::default(),
2953 has_pending_diagnostic_updates: false,
2954 progress_tokens: Default::default(),
2955 },
2956 );
2957
2958 cx.emit(Event::LanguageServerAdded(server_id));
2959
2960 if let Some(project_id) = self.remote_id() {
2961 self.client.send(proto::StartLanguageServer {
2962 project_id,
2963 server: Some(proto::LanguageServer {
2964 id: server_id.0 as u64,
2965 name: language_server.name().to_string(),
2966 }),
2967 })?;
2968 }
2969
2970 // Tell the language server about every open buffer in the worktree that matches the language.
2971 for buffer in self.opened_buffers.values() {
2972 if let Some(buffer_handle) = buffer.upgrade(cx) {
2973 let buffer = buffer_handle.read(cx);
2974 let file = match File::from_dyn(buffer.file()) {
2975 Some(file) => file,
2976 None => continue,
2977 };
2978 let language = match buffer.language() {
2979 Some(language) => language,
2980 None => continue,
2981 };
2982
2983 if file.worktree.read(cx).id() != key.0
2984 || !language.lsp_adapters().iter().any(|a| a.name == key.1)
2985 {
2986 continue;
2987 }
2988
2989 let file = match file.as_local() {
2990 Some(file) => file,
2991 None => continue,
2992 };
2993
2994 let versions = self
2995 .buffer_snapshots
2996 .entry(buffer.remote_id())
2997 .or_default()
2998 .entry(server_id)
2999 .or_insert_with(|| {
3000 vec![LspBufferSnapshot {
3001 version: 0,
3002 snapshot: buffer.text_snapshot(),
3003 }]
3004 });
3005
3006 let snapshot = versions.last().unwrap();
3007 let version = snapshot.version;
3008 let initial_snapshot = &snapshot.snapshot;
3009 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
3010 language_server.notify::<lsp::notification::DidOpenTextDocument>(
3011 lsp::DidOpenTextDocumentParams {
3012 text_document: lsp::TextDocumentItem::new(
3013 uri,
3014 adapter
3015 .language_ids
3016 .get(language.name().as_ref())
3017 .cloned()
3018 .unwrap_or_default(),
3019 version,
3020 initial_snapshot.text(),
3021 ),
3022 },
3023 )?;
3024
3025 buffer_handle.update(cx, |buffer, cx| {
3026 buffer.set_completion_triggers(
3027 language_server
3028 .capabilities()
3029 .completion_provider
3030 .as_ref()
3031 .and_then(|provider| provider.trigger_characters.clone())
3032 .unwrap_or_default(),
3033 cx,
3034 )
3035 });
3036 }
3037 }
3038
3039 cx.notify();
3040 Ok(())
3041 }
3042
3043 // Returns a list of all of the worktrees which no longer have a language server and the root path
3044 // for the stopped server
3045 fn stop_language_server(
3046 &mut self,
3047 worktree_id: WorktreeId,
3048 adapter_name: LanguageServerName,
3049 cx: &mut ModelContext<Self>,
3050 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
3051 let key = (worktree_id, adapter_name);
3052 if let Some(server_id) = self.language_server_ids.remove(&key) {
3053 log::info!("stopping language server {}", key.1 .0);
3054
3055 // Remove other entries for this language server as well
3056 let mut orphaned_worktrees = vec![worktree_id];
3057 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
3058 for other_key in other_keys {
3059 if self.language_server_ids.get(&other_key) == Some(&server_id) {
3060 self.language_server_ids.remove(&other_key);
3061 orphaned_worktrees.push(other_key.0);
3062 }
3063 }
3064
3065 for buffer in self.opened_buffers.values() {
3066 if let Some(buffer) = buffer.upgrade(cx) {
3067 buffer.update(cx, |buffer, cx| {
3068 buffer.update_diagnostics(server_id, Default::default(), cx);
3069 });
3070 }
3071 }
3072 for worktree in &self.worktrees {
3073 if let Some(worktree) = worktree.upgrade(cx) {
3074 worktree.update(cx, |worktree, cx| {
3075 if let Some(worktree) = worktree.as_local_mut() {
3076 worktree.clear_diagnostics_for_language_server(server_id, cx);
3077 }
3078 });
3079 }
3080 }
3081
3082 self.language_server_statuses.remove(&server_id);
3083 cx.notify();
3084
3085 let server_state = self.language_servers.remove(&server_id);
3086 cx.emit(Event::LanguageServerRemoved(server_id));
3087 cx.spawn_weak(|this, mut cx| async move {
3088 let mut root_path = None;
3089
3090 let server = match server_state {
3091 Some(LanguageServerState::Starting(task)) => task.await,
3092 Some(LanguageServerState::Running { server, .. }) => Some(server),
3093 None => None,
3094 };
3095
3096 if let Some(server) = server {
3097 root_path = Some(server.root_path().clone());
3098 if let Some(shutdown) = server.shutdown() {
3099 shutdown.await;
3100 }
3101 }
3102
3103 if let Some(this) = this.upgrade(&cx) {
3104 this.update(&mut cx, |this, cx| {
3105 this.language_server_statuses.remove(&server_id);
3106 cx.notify();
3107 });
3108 }
3109
3110 (root_path, orphaned_worktrees)
3111 })
3112 } else {
3113 Task::ready((None, Vec::new()))
3114 }
3115 }
3116
3117 pub fn restart_language_servers_for_buffers(
3118 &mut self,
3119 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
3120 cx: &mut ModelContext<Self>,
3121 ) -> Option<()> {
3122 let language_server_lookup_info: HashSet<(ModelHandle<Worktree>, Arc<Language>)> = buffers
3123 .into_iter()
3124 .filter_map(|buffer| {
3125 let buffer = buffer.read(cx);
3126 let file = File::from_dyn(buffer.file())?;
3127 let full_path = file.full_path(cx);
3128 let language = self
3129 .languages
3130 .language_for_file(&full_path, Some(buffer.as_rope()))
3131 .now_or_never()?
3132 .ok()?;
3133 Some((file.worktree.clone(), language))
3134 })
3135 .collect();
3136 for (worktree, language) in language_server_lookup_info {
3137 self.restart_language_servers(worktree, language, cx);
3138 }
3139
3140 None
3141 }
3142
3143 // TODO This will break in the case where the adapter's root paths and worktrees are not equal
3144 fn restart_language_servers(
3145 &mut self,
3146 worktree: ModelHandle<Worktree>,
3147 language: Arc<Language>,
3148 cx: &mut ModelContext<Self>,
3149 ) {
3150 let worktree_id = worktree.read(cx).id();
3151 let fallback_path = worktree.read(cx).abs_path();
3152
3153 let mut stops = Vec::new();
3154 for adapter in language.lsp_adapters() {
3155 stops.push(self.stop_language_server(worktree_id, adapter.name.clone(), cx));
3156 }
3157
3158 if stops.is_empty() {
3159 return;
3160 }
3161 let mut stops = stops.into_iter();
3162
3163 cx.spawn_weak(|this, mut cx| async move {
3164 let (original_root_path, mut orphaned_worktrees) = stops.next().unwrap().await;
3165 for stop in stops {
3166 let (_, worktrees) = stop.await;
3167 orphaned_worktrees.extend_from_slice(&worktrees);
3168 }
3169
3170 let this = match this.upgrade(&cx) {
3171 Some(this) => this,
3172 None => return,
3173 };
3174
3175 this.update(&mut cx, |this, cx| {
3176 // Attempt to restart using original server path. Fallback to passed in
3177 // path if we could not retrieve the root path
3178 let root_path = original_root_path
3179 .map(|path_buf| Arc::from(path_buf.as_path()))
3180 .unwrap_or(fallback_path);
3181
3182 this.start_language_servers(&worktree, root_path, language.clone(), cx);
3183
3184 // Lookup new server ids and set them for each of the orphaned worktrees
3185 for adapter in language.lsp_adapters() {
3186 if let Some(new_server_id) = this
3187 .language_server_ids
3188 .get(&(worktree_id, adapter.name.clone()))
3189 .cloned()
3190 {
3191 for &orphaned_worktree in &orphaned_worktrees {
3192 this.language_server_ids
3193 .insert((orphaned_worktree, adapter.name.clone()), new_server_id);
3194 }
3195 }
3196 }
3197 });
3198 })
3199 .detach();
3200 }
3201
3202 fn check_errored_server(
3203 language: Arc<Language>,
3204 adapter: Arc<CachedLspAdapter>,
3205 server_id: LanguageServerId,
3206 installation_test_binary: Option<LanguageServerBinary>,
3207 cx: &mut ModelContext<Self>,
3208 ) {
3209 if !adapter.can_be_reinstalled() {
3210 log::info!(
3211 "Validation check requested for {:?} but it cannot be reinstalled",
3212 adapter.name.0
3213 );
3214 return;
3215 }
3216
3217 cx.spawn(|this, mut cx| async move {
3218 log::info!("About to spawn test binary");
3219
3220 // A lack of test binary counts as a failure
3221 let process = installation_test_binary.and_then(|binary| {
3222 smol::process::Command::new(&binary.path)
3223 .current_dir(&binary.path)
3224 .args(binary.arguments)
3225 .stdin(Stdio::piped())
3226 .stdout(Stdio::piped())
3227 .stderr(Stdio::inherit())
3228 .kill_on_drop(true)
3229 .spawn()
3230 .ok()
3231 });
3232
3233 const PROCESS_TIMEOUT: Duration = Duration::from_secs(5);
3234 let mut timeout = cx.background().timer(PROCESS_TIMEOUT).fuse();
3235
3236 let mut errored = false;
3237 if let Some(mut process) = process {
3238 futures::select! {
3239 status = process.status().fuse() => match status {
3240 Ok(status) => errored = !status.success(),
3241 Err(_) => errored = true,
3242 },
3243
3244 _ = timeout => {
3245 log::info!("test binary time-ed out, this counts as a success");
3246 _ = process.kill();
3247 }
3248 }
3249 } else {
3250 log::warn!("test binary failed to launch");
3251 errored = true;
3252 }
3253
3254 if errored {
3255 log::warn!("test binary check failed");
3256 let task = this.update(&mut cx, move |this, mut cx| {
3257 this.reinstall_language_server(language, adapter, server_id, &mut cx)
3258 });
3259
3260 if let Some(task) = task {
3261 task.await;
3262 }
3263 }
3264 })
3265 .detach();
3266 }
3267
3268 fn on_lsp_progress(
3269 &mut self,
3270 progress: lsp::ProgressParams,
3271 language_server_id: LanguageServerId,
3272 disk_based_diagnostics_progress_token: Option<String>,
3273 cx: &mut ModelContext<Self>,
3274 ) {
3275 let token = match progress.token {
3276 lsp::NumberOrString::String(token) => token,
3277 lsp::NumberOrString::Number(token) => {
3278 log::info!("skipping numeric progress token {}", token);
3279 return;
3280 }
3281 };
3282 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
3283 let language_server_status =
3284 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
3285 status
3286 } else {
3287 return;
3288 };
3289
3290 if !language_server_status.progress_tokens.contains(&token) {
3291 return;
3292 }
3293
3294 let is_disk_based_diagnostics_progress = disk_based_diagnostics_progress_token
3295 .as_ref()
3296 .map_or(false, |disk_based_token| {
3297 token.starts_with(disk_based_token)
3298 });
3299
3300 match progress {
3301 lsp::WorkDoneProgress::Begin(report) => {
3302 if is_disk_based_diagnostics_progress {
3303 language_server_status.has_pending_diagnostic_updates = true;
3304 self.disk_based_diagnostics_started(language_server_id, cx);
3305 self.buffer_ordered_messages_tx
3306 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
3307 language_server_id,
3308 message: proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(Default::default())
3309 })
3310 .ok();
3311 } else {
3312 self.on_lsp_work_start(
3313 language_server_id,
3314 token.clone(),
3315 LanguageServerProgress {
3316 message: report.message.clone(),
3317 percentage: report.percentage.map(|p| p as usize),
3318 last_update_at: Instant::now(),
3319 },
3320 cx,
3321 );
3322 self.buffer_ordered_messages_tx
3323 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
3324 language_server_id,
3325 message: proto::update_language_server::Variant::WorkStart(
3326 proto::LspWorkStart {
3327 token,
3328 message: report.message,
3329 percentage: report.percentage.map(|p| p as u32),
3330 },
3331 ),
3332 })
3333 .ok();
3334 }
3335 }
3336 lsp::WorkDoneProgress::Report(report) => {
3337 if !is_disk_based_diagnostics_progress {
3338 self.on_lsp_work_progress(
3339 language_server_id,
3340 token.clone(),
3341 LanguageServerProgress {
3342 message: report.message.clone(),
3343 percentage: report.percentage.map(|p| p as usize),
3344 last_update_at: Instant::now(),
3345 },
3346 cx,
3347 );
3348 self.buffer_ordered_messages_tx
3349 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
3350 language_server_id,
3351 message: proto::update_language_server::Variant::WorkProgress(
3352 proto::LspWorkProgress {
3353 token,
3354 message: report.message,
3355 percentage: report.percentage.map(|p| p as u32),
3356 },
3357 ),
3358 })
3359 .ok();
3360 }
3361 }
3362 lsp::WorkDoneProgress::End(_) => {
3363 language_server_status.progress_tokens.remove(&token);
3364
3365 if is_disk_based_diagnostics_progress {
3366 language_server_status.has_pending_diagnostic_updates = false;
3367 self.disk_based_diagnostics_finished(language_server_id, cx);
3368 self.buffer_ordered_messages_tx
3369 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
3370 language_server_id,
3371 message:
3372 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
3373 Default::default(),
3374 ),
3375 })
3376 .ok();
3377 } else {
3378 self.on_lsp_work_end(language_server_id, token.clone(), cx);
3379 self.buffer_ordered_messages_tx
3380 .unbounded_send(BufferOrderedMessage::LanguageServerUpdate {
3381 language_server_id,
3382 message: proto::update_language_server::Variant::WorkEnd(
3383 proto::LspWorkEnd { token },
3384 ),
3385 })
3386 .ok();
3387 }
3388 }
3389 }
3390 }
3391
3392 fn on_lsp_work_start(
3393 &mut self,
3394 language_server_id: LanguageServerId,
3395 token: String,
3396 progress: LanguageServerProgress,
3397 cx: &mut ModelContext<Self>,
3398 ) {
3399 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
3400 status.pending_work.insert(token, progress);
3401 cx.notify();
3402 }
3403 }
3404
3405 fn on_lsp_work_progress(
3406 &mut self,
3407 language_server_id: LanguageServerId,
3408 token: String,
3409 progress: LanguageServerProgress,
3410 cx: &mut ModelContext<Self>,
3411 ) {
3412 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
3413 let entry = status
3414 .pending_work
3415 .entry(token)
3416 .or_insert(LanguageServerProgress {
3417 message: Default::default(),
3418 percentage: Default::default(),
3419 last_update_at: progress.last_update_at,
3420 });
3421 if progress.message.is_some() {
3422 entry.message = progress.message;
3423 }
3424 if progress.percentage.is_some() {
3425 entry.percentage = progress.percentage;
3426 }
3427 entry.last_update_at = progress.last_update_at;
3428 cx.notify();
3429 }
3430 }
3431
3432 fn on_lsp_work_end(
3433 &mut self,
3434 language_server_id: LanguageServerId,
3435 token: String,
3436 cx: &mut ModelContext<Self>,
3437 ) {
3438 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
3439 cx.emit(Event::RefreshInlays);
3440 status.pending_work.remove(&token);
3441 cx.notify();
3442 }
3443 }
3444
3445 fn on_lsp_did_change_watched_files(
3446 &mut self,
3447 language_server_id: LanguageServerId,
3448 params: DidChangeWatchedFilesRegistrationOptions,
3449 cx: &mut ModelContext<Self>,
3450 ) {
3451 if let Some(LanguageServerState::Running { watched_paths, .. }) =
3452 self.language_servers.get_mut(&language_server_id)
3453 {
3454 let mut builders = HashMap::default();
3455 for watcher in params.watchers {
3456 for worktree in &self.worktrees {
3457 if let Some(worktree) = worktree.upgrade(cx) {
3458 let glob_is_inside_worktree = worktree.update(cx, |tree, _| {
3459 if let Some(abs_path) = tree.abs_path().to_str() {
3460 let relative_glob_pattern = match &watcher.glob_pattern {
3461 lsp::GlobPattern::String(s) => s
3462 .strip_prefix(abs_path)
3463 .and_then(|s| s.strip_prefix(std::path::MAIN_SEPARATOR)),
3464 lsp::GlobPattern::Relative(rp) => {
3465 let base_uri = match &rp.base_uri {
3466 lsp::OneOf::Left(workspace_folder) => {
3467 &workspace_folder.uri
3468 }
3469 lsp::OneOf::Right(base_uri) => base_uri,
3470 };
3471 base_uri.to_file_path().ok().and_then(|file_path| {
3472 (file_path.to_str() == Some(abs_path))
3473 .then_some(rp.pattern.as_str())
3474 })
3475 }
3476 };
3477 if let Some(relative_glob_pattern) = relative_glob_pattern {
3478 let literal_prefix =
3479 glob_literal_prefix(&relative_glob_pattern);
3480 tree.as_local_mut()
3481 .unwrap()
3482 .add_path_prefix_to_scan(Path::new(literal_prefix).into());
3483 if let Some(glob) = Glob::new(relative_glob_pattern).log_err() {
3484 builders
3485 .entry(tree.id())
3486 .or_insert_with(|| GlobSetBuilder::new())
3487 .add(glob);
3488 }
3489 return true;
3490 }
3491 }
3492 false
3493 });
3494 if glob_is_inside_worktree {
3495 break;
3496 }
3497 }
3498 }
3499 }
3500
3501 watched_paths.clear();
3502 for (worktree_id, builder) in builders {
3503 if let Ok(globset) = builder.build() {
3504 watched_paths.insert(worktree_id, globset);
3505 }
3506 }
3507
3508 cx.notify();
3509 }
3510 }
3511
3512 async fn on_lsp_workspace_edit(
3513 this: WeakModelHandle<Self>,
3514 params: lsp::ApplyWorkspaceEditParams,
3515 server_id: LanguageServerId,
3516 adapter: Arc<CachedLspAdapter>,
3517 mut cx: AsyncAppContext,
3518 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
3519 let this = this
3520 .upgrade(&cx)
3521 .ok_or_else(|| anyhow!("project project closed"))?;
3522 let language_server = this
3523 .read_with(&cx, |this, _| this.language_server_for_id(server_id))
3524 .ok_or_else(|| anyhow!("language server not found"))?;
3525 let transaction = Self::deserialize_workspace_edit(
3526 this.clone(),
3527 params.edit,
3528 true,
3529 adapter.clone(),
3530 language_server.clone(),
3531 &mut cx,
3532 )
3533 .await
3534 .log_err();
3535 this.update(&mut cx, |this, _| {
3536 if let Some(transaction) = transaction {
3537 this.last_workspace_edits_by_language_server
3538 .insert(server_id, transaction);
3539 }
3540 });
3541 Ok(lsp::ApplyWorkspaceEditResponse {
3542 applied: true,
3543 failed_change: None,
3544 failure_reason: None,
3545 })
3546 }
3547
3548 pub fn language_server_statuses(
3549 &self,
3550 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
3551 self.language_server_statuses.values()
3552 }
3553
3554 pub fn update_diagnostics(
3555 &mut self,
3556 language_server_id: LanguageServerId,
3557 mut params: lsp::PublishDiagnosticsParams,
3558 disk_based_sources: &[String],
3559 cx: &mut ModelContext<Self>,
3560 ) -> Result<()> {
3561 let abs_path = params
3562 .uri
3563 .to_file_path()
3564 .map_err(|_| anyhow!("URI is not a file"))?;
3565 let mut diagnostics = Vec::default();
3566 let mut primary_diagnostic_group_ids = HashMap::default();
3567 let mut sources_by_group_id = HashMap::default();
3568 let mut supporting_diagnostics = HashMap::default();
3569
3570 // Ensure that primary diagnostics are always the most severe
3571 params.diagnostics.sort_by_key(|item| item.severity);
3572
3573 for diagnostic in ¶ms.diagnostics {
3574 let source = diagnostic.source.as_ref();
3575 let code = diagnostic.code.as_ref().map(|code| match code {
3576 lsp::NumberOrString::Number(code) => code.to_string(),
3577 lsp::NumberOrString::String(code) => code.clone(),
3578 });
3579 let range = range_from_lsp(diagnostic.range);
3580 let is_supporting = diagnostic
3581 .related_information
3582 .as_ref()
3583 .map_or(false, |infos| {
3584 infos.iter().any(|info| {
3585 primary_diagnostic_group_ids.contains_key(&(
3586 source,
3587 code.clone(),
3588 range_from_lsp(info.location.range),
3589 ))
3590 })
3591 });
3592
3593 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
3594 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
3595 });
3596
3597 if is_supporting {
3598 supporting_diagnostics.insert(
3599 (source, code.clone(), range),
3600 (diagnostic.severity, is_unnecessary),
3601 );
3602 } else {
3603 let group_id = post_inc(&mut self.next_diagnostic_group_id);
3604 let is_disk_based =
3605 source.map_or(false, |source| disk_based_sources.contains(source));
3606
3607 sources_by_group_id.insert(group_id, source);
3608 primary_diagnostic_group_ids
3609 .insert((source, code.clone(), range.clone()), group_id);
3610
3611 diagnostics.push(DiagnosticEntry {
3612 range,
3613 diagnostic: Diagnostic {
3614 source: diagnostic.source.clone(),
3615 code: code.clone(),
3616 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
3617 message: diagnostic.message.clone(),
3618 group_id,
3619 is_primary: true,
3620 is_valid: true,
3621 is_disk_based,
3622 is_unnecessary,
3623 },
3624 });
3625 if let Some(infos) = &diagnostic.related_information {
3626 for info in infos {
3627 if info.location.uri == params.uri && !info.message.is_empty() {
3628 let range = range_from_lsp(info.location.range);
3629 diagnostics.push(DiagnosticEntry {
3630 range,
3631 diagnostic: Diagnostic {
3632 source: diagnostic.source.clone(),
3633 code: code.clone(),
3634 severity: DiagnosticSeverity::INFORMATION,
3635 message: info.message.clone(),
3636 group_id,
3637 is_primary: false,
3638 is_valid: true,
3639 is_disk_based,
3640 is_unnecessary: false,
3641 },
3642 });
3643 }
3644 }
3645 }
3646 }
3647 }
3648
3649 for entry in &mut diagnostics {
3650 let diagnostic = &mut entry.diagnostic;
3651 if !diagnostic.is_primary {
3652 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
3653 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
3654 source,
3655 diagnostic.code.clone(),
3656 entry.range.clone(),
3657 )) {
3658 if let Some(severity) = severity {
3659 diagnostic.severity = severity;
3660 }
3661 diagnostic.is_unnecessary = is_unnecessary;
3662 }
3663 }
3664 }
3665
3666 self.update_diagnostic_entries(
3667 language_server_id,
3668 abs_path,
3669 params.version,
3670 diagnostics,
3671 cx,
3672 )?;
3673 Ok(())
3674 }
3675
3676 pub fn update_diagnostic_entries(
3677 &mut self,
3678 server_id: LanguageServerId,
3679 abs_path: PathBuf,
3680 version: Option<i32>,
3681 diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3682 cx: &mut ModelContext<Project>,
3683 ) -> Result<(), anyhow::Error> {
3684 let (worktree, relative_path) = self
3685 .find_local_worktree(&abs_path, cx)
3686 .ok_or_else(|| anyhow!("no worktree found for diagnostics path {abs_path:?}"))?;
3687
3688 let project_path = ProjectPath {
3689 worktree_id: worktree.read(cx).id(),
3690 path: relative_path.into(),
3691 };
3692
3693 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
3694 self.update_buffer_diagnostics(&buffer, server_id, version, diagnostics.clone(), cx)?;
3695 }
3696
3697 let updated = worktree.update(cx, |worktree, cx| {
3698 worktree
3699 .as_local_mut()
3700 .ok_or_else(|| anyhow!("not a local worktree"))?
3701 .update_diagnostics(server_id, project_path.path.clone(), diagnostics, cx)
3702 })?;
3703 if updated {
3704 cx.emit(Event::DiagnosticsUpdated {
3705 language_server_id: server_id,
3706 path: project_path,
3707 });
3708 }
3709 Ok(())
3710 }
3711
3712 fn update_buffer_diagnostics(
3713 &mut self,
3714 buffer: &ModelHandle<Buffer>,
3715 server_id: LanguageServerId,
3716 version: Option<i32>,
3717 mut diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
3718 cx: &mut ModelContext<Self>,
3719 ) -> Result<()> {
3720 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
3721 Ordering::Equal
3722 .then_with(|| b.is_primary.cmp(&a.is_primary))
3723 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
3724 .then_with(|| a.severity.cmp(&b.severity))
3725 .then_with(|| a.message.cmp(&b.message))
3726 }
3727
3728 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx)?;
3729
3730 diagnostics.sort_unstable_by(|a, b| {
3731 Ordering::Equal
3732 .then_with(|| a.range.start.cmp(&b.range.start))
3733 .then_with(|| b.range.end.cmp(&a.range.end))
3734 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
3735 });
3736
3737 let mut sanitized_diagnostics = Vec::new();
3738 let edits_since_save = Patch::new(
3739 snapshot
3740 .edits_since::<Unclipped<PointUtf16>>(buffer.read(cx).saved_version())
3741 .collect(),
3742 );
3743 for entry in diagnostics {
3744 let start;
3745 let end;
3746 if entry.diagnostic.is_disk_based {
3747 // Some diagnostics are based on files on disk instead of buffers'
3748 // current contents. Adjust these diagnostics' ranges to reflect
3749 // any unsaved edits.
3750 start = edits_since_save.old_to_new(entry.range.start);
3751 end = edits_since_save.old_to_new(entry.range.end);
3752 } else {
3753 start = entry.range.start;
3754 end = entry.range.end;
3755 }
3756
3757 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
3758 ..snapshot.clip_point_utf16(end, Bias::Right);
3759
3760 // Expand empty ranges by one codepoint
3761 if range.start == range.end {
3762 // This will be go to the next boundary when being clipped
3763 range.end.column += 1;
3764 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Right);
3765 if range.start == range.end && range.end.column > 0 {
3766 range.start.column -= 1;
3767 range.end = snapshot.clip_point_utf16(Unclipped(range.end), Bias::Left);
3768 }
3769 }
3770
3771 sanitized_diagnostics.push(DiagnosticEntry {
3772 range,
3773 diagnostic: entry.diagnostic,
3774 });
3775 }
3776 drop(edits_since_save);
3777
3778 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
3779 buffer.update(cx, |buffer, cx| {
3780 buffer.update_diagnostics(server_id, set, cx)
3781 });
3782 Ok(())
3783 }
3784
3785 pub fn reload_buffers(
3786 &self,
3787 buffers: HashSet<ModelHandle<Buffer>>,
3788 push_to_history: bool,
3789 cx: &mut ModelContext<Self>,
3790 ) -> Task<Result<ProjectTransaction>> {
3791 let mut local_buffers = Vec::new();
3792 let mut remote_buffers = None;
3793 for buffer_handle in buffers {
3794 let buffer = buffer_handle.read(cx);
3795 if buffer.is_dirty() {
3796 if let Some(file) = File::from_dyn(buffer.file()) {
3797 if file.is_local() {
3798 local_buffers.push(buffer_handle);
3799 } else {
3800 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3801 }
3802 }
3803 }
3804 }
3805
3806 let remote_buffers = self.remote_id().zip(remote_buffers);
3807 let client = self.client.clone();
3808
3809 cx.spawn(|this, mut cx| async move {
3810 let mut project_transaction = ProjectTransaction::default();
3811
3812 if let Some((project_id, remote_buffers)) = remote_buffers {
3813 let response = client
3814 .request(proto::ReloadBuffers {
3815 project_id,
3816 buffer_ids: remote_buffers
3817 .iter()
3818 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3819 .collect(),
3820 })
3821 .await?
3822 .transaction
3823 .ok_or_else(|| anyhow!("missing transaction"))?;
3824 project_transaction = this
3825 .update(&mut cx, |this, cx| {
3826 this.deserialize_project_transaction(response, push_to_history, cx)
3827 })
3828 .await?;
3829 }
3830
3831 for buffer in local_buffers {
3832 let transaction = buffer
3833 .update(&mut cx, |buffer, cx| buffer.reload(cx))
3834 .await?;
3835 buffer.update(&mut cx, |buffer, cx| {
3836 if let Some(transaction) = transaction {
3837 if !push_to_history {
3838 buffer.forget_transaction(transaction.id);
3839 }
3840 project_transaction.0.insert(cx.handle(), transaction);
3841 }
3842 });
3843 }
3844
3845 Ok(project_transaction)
3846 })
3847 }
3848
3849 pub fn format(
3850 &self,
3851 buffers: HashSet<ModelHandle<Buffer>>,
3852 push_to_history: bool,
3853 trigger: FormatTrigger,
3854 cx: &mut ModelContext<Project>,
3855 ) -> Task<Result<ProjectTransaction>> {
3856 if self.is_local() {
3857 let mut buffers_with_paths_and_servers = buffers
3858 .into_iter()
3859 .filter_map(|buffer_handle| {
3860 let buffer = buffer_handle.read(cx);
3861 let file = File::from_dyn(buffer.file())?;
3862 let buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3863 let server = self
3864 .primary_language_server_for_buffer(buffer, cx)
3865 .map(|s| s.1.clone());
3866 Some((buffer_handle, buffer_abs_path, server))
3867 })
3868 .collect::<Vec<_>>();
3869
3870 cx.spawn(|this, mut cx| async move {
3871 // Do not allow multiple concurrent formatting requests for the
3872 // same buffer.
3873 this.update(&mut cx, |this, cx| {
3874 buffers_with_paths_and_servers.retain(|(buffer, _, _)| {
3875 this.buffers_being_formatted
3876 .insert(buffer.read(cx).remote_id())
3877 });
3878 });
3879
3880 let _cleanup = defer({
3881 let this = this.clone();
3882 let mut cx = cx.clone();
3883 let buffers = &buffers_with_paths_and_servers;
3884 move || {
3885 this.update(&mut cx, |this, cx| {
3886 for (buffer, _, _) in buffers {
3887 this.buffers_being_formatted
3888 .remove(&buffer.read(cx).remote_id());
3889 }
3890 });
3891 }
3892 });
3893
3894 let mut project_transaction = ProjectTransaction::default();
3895 for (buffer, buffer_abs_path, language_server) in &buffers_with_paths_and_servers {
3896 let settings = buffer.read_with(&cx, |buffer, cx| {
3897 language_settings(buffer.language(), buffer.file(), cx).clone()
3898 });
3899
3900 let remove_trailing_whitespace = settings.remove_trailing_whitespace_on_save;
3901 let ensure_final_newline = settings.ensure_final_newline_on_save;
3902 let format_on_save = settings.format_on_save.clone();
3903 let formatter = settings.formatter.clone();
3904 let tab_size = settings.tab_size;
3905
3906 // First, format buffer's whitespace according to the settings.
3907 let trailing_whitespace_diff = if remove_trailing_whitespace {
3908 Some(
3909 buffer
3910 .read_with(&cx, |b, cx| b.remove_trailing_whitespace(cx))
3911 .await,
3912 )
3913 } else {
3914 None
3915 };
3916 let whitespace_transaction_id = buffer.update(&mut cx, |buffer, cx| {
3917 buffer.finalize_last_transaction();
3918 buffer.start_transaction();
3919 if let Some(diff) = trailing_whitespace_diff {
3920 buffer.apply_diff(diff, cx);
3921 }
3922 if ensure_final_newline {
3923 buffer.ensure_final_newline(cx);
3924 }
3925 buffer.end_transaction(cx)
3926 });
3927
3928 // Currently, formatting operations are represented differently depending on
3929 // whether they come from a language server or an external command.
3930 enum FormatOperation {
3931 Lsp(Vec<(Range<Anchor>, String)>),
3932 External(Diff),
3933 }
3934
3935 // Apply language-specific formatting using either a language server
3936 // or external command.
3937 let mut format_operation = None;
3938 match (formatter, format_on_save) {
3939 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => {}
3940
3941 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
3942 | (_, FormatOnSave::LanguageServer) => {
3943 if let Some((language_server, buffer_abs_path)) =
3944 language_server.as_ref().zip(buffer_abs_path.as_ref())
3945 {
3946 format_operation = Some(FormatOperation::Lsp(
3947 Self::format_via_lsp(
3948 &this,
3949 &buffer,
3950 buffer_abs_path,
3951 &language_server,
3952 tab_size,
3953 &mut cx,
3954 )
3955 .await
3956 .context("failed to format via language server")?,
3957 ));
3958 }
3959 }
3960
3961 (
3962 Formatter::External { command, arguments },
3963 FormatOnSave::On | FormatOnSave::Off,
3964 )
3965 | (_, FormatOnSave::External { command, arguments }) => {
3966 if let Some(buffer_abs_path) = buffer_abs_path {
3967 format_operation = Self::format_via_external_command(
3968 &buffer,
3969 &buffer_abs_path,
3970 &command,
3971 &arguments,
3972 &mut cx,
3973 )
3974 .await
3975 .context(format!(
3976 "failed to format via external command {:?}",
3977 command
3978 ))?
3979 .map(FormatOperation::External);
3980 }
3981 }
3982 };
3983
3984 buffer.update(&mut cx, |b, cx| {
3985 // If the buffer had its whitespace formatted and was edited while the language-specific
3986 // formatting was being computed, avoid applying the language-specific formatting, because
3987 // it can't be grouped with the whitespace formatting in the undo history.
3988 if let Some(transaction_id) = whitespace_transaction_id {
3989 if b.peek_undo_stack()
3990 .map_or(true, |e| e.transaction_id() != transaction_id)
3991 {
3992 format_operation.take();
3993 }
3994 }
3995
3996 // Apply any language-specific formatting, and group the two formatting operations
3997 // in the buffer's undo history.
3998 if let Some(operation) = format_operation {
3999 match operation {
4000 FormatOperation::Lsp(edits) => {
4001 b.edit(edits, None, cx);
4002 }
4003 FormatOperation::External(diff) => {
4004 b.apply_diff(diff, cx);
4005 }
4006 }
4007
4008 if let Some(transaction_id) = whitespace_transaction_id {
4009 b.group_until_transaction(transaction_id);
4010 }
4011 }
4012
4013 if let Some(transaction) = b.finalize_last_transaction().cloned() {
4014 if !push_to_history {
4015 b.forget_transaction(transaction.id);
4016 }
4017 project_transaction.0.insert(buffer.clone(), transaction);
4018 }
4019 });
4020 }
4021
4022 Ok(project_transaction)
4023 })
4024 } else {
4025 let remote_id = self.remote_id();
4026 let client = self.client.clone();
4027 cx.spawn(|this, mut cx| async move {
4028 let mut project_transaction = ProjectTransaction::default();
4029 if let Some(project_id) = remote_id {
4030 let response = client
4031 .request(proto::FormatBuffers {
4032 project_id,
4033 trigger: trigger as i32,
4034 buffer_ids: buffers
4035 .iter()
4036 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
4037 .collect(),
4038 })
4039 .await?
4040 .transaction
4041 .ok_or_else(|| anyhow!("missing transaction"))?;
4042 project_transaction = this
4043 .update(&mut cx, |this, cx| {
4044 this.deserialize_project_transaction(response, push_to_history, cx)
4045 })
4046 .await?;
4047 }
4048 Ok(project_transaction)
4049 })
4050 }
4051 }
4052
4053 async fn format_via_lsp(
4054 this: &ModelHandle<Self>,
4055 buffer: &ModelHandle<Buffer>,
4056 abs_path: &Path,
4057 language_server: &Arc<LanguageServer>,
4058 tab_size: NonZeroU32,
4059 cx: &mut AsyncAppContext,
4060 ) -> Result<Vec<(Range<Anchor>, String)>> {
4061 let uri = lsp::Url::from_file_path(abs_path)
4062 .map_err(|_| anyhow!("failed to convert abs path to uri"))?;
4063 let text_document = lsp::TextDocumentIdentifier::new(uri);
4064 let capabilities = &language_server.capabilities();
4065
4066 let formatting_provider = capabilities.document_formatting_provider.as_ref();
4067 let range_formatting_provider = capabilities.document_range_formatting_provider.as_ref();
4068
4069 let lsp_edits = if matches!(formatting_provider, Some(p) if *p != OneOf::Left(false)) {
4070 language_server
4071 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
4072 text_document,
4073 options: lsp_command::lsp_formatting_options(tab_size.get()),
4074 work_done_progress_params: Default::default(),
4075 })
4076 .await?
4077 } else if matches!(range_formatting_provider, Some(p) if *p != OneOf::Left(false)) {
4078 let buffer_start = lsp::Position::new(0, 0);
4079 let buffer_end = buffer.read_with(cx, |b, _| point_to_lsp(b.max_point_utf16()));
4080
4081 language_server
4082 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
4083 text_document,
4084 range: lsp::Range::new(buffer_start, buffer_end),
4085 options: lsp_command::lsp_formatting_options(tab_size.get()),
4086 work_done_progress_params: Default::default(),
4087 })
4088 .await?
4089 } else {
4090 None
4091 };
4092
4093 if let Some(lsp_edits) = lsp_edits {
4094 this.update(cx, |this, cx| {
4095 this.edits_from_lsp(buffer, lsp_edits, language_server.server_id(), None, cx)
4096 })
4097 .await
4098 } else {
4099 Ok(Vec::new())
4100 }
4101 }
4102
4103 async fn format_via_external_command(
4104 buffer: &ModelHandle<Buffer>,
4105 buffer_abs_path: &Path,
4106 command: &str,
4107 arguments: &[String],
4108 cx: &mut AsyncAppContext,
4109 ) -> Result<Option<Diff>> {
4110 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
4111 let file = File::from_dyn(buffer.file())?;
4112 let worktree = file.worktree.read(cx).as_local()?;
4113 let mut worktree_path = worktree.abs_path().to_path_buf();
4114 if worktree.root_entry()?.is_file() {
4115 worktree_path.pop();
4116 }
4117 Some(worktree_path)
4118 });
4119
4120 if let Some(working_dir_path) = working_dir_path {
4121 let mut child =
4122 smol::process::Command::new(command)
4123 .args(arguments.iter().map(|arg| {
4124 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
4125 }))
4126 .current_dir(&working_dir_path)
4127 .stdin(smol::process::Stdio::piped())
4128 .stdout(smol::process::Stdio::piped())
4129 .stderr(smol::process::Stdio::piped())
4130 .spawn()?;
4131 let stdin = child
4132 .stdin
4133 .as_mut()
4134 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
4135 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
4136 for chunk in text.chunks() {
4137 stdin.write_all(chunk.as_bytes()).await?;
4138 }
4139 stdin.flush().await?;
4140
4141 let output = child.output().await?;
4142 if !output.status.success() {
4143 return Err(anyhow!(
4144 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
4145 output.status.code(),
4146 String::from_utf8_lossy(&output.stdout),
4147 String::from_utf8_lossy(&output.stderr),
4148 ));
4149 }
4150
4151 let stdout = String::from_utf8(output.stdout)?;
4152 Ok(Some(
4153 buffer
4154 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
4155 .await,
4156 ))
4157 } else {
4158 Ok(None)
4159 }
4160 }
4161
4162 pub fn definition<T: ToPointUtf16>(
4163 &self,
4164 buffer: &ModelHandle<Buffer>,
4165 position: T,
4166 cx: &mut ModelContext<Self>,
4167 ) -> Task<Result<Vec<LocationLink>>> {
4168 let position = position.to_point_utf16(buffer.read(cx));
4169 self.request_primary_lsp(buffer.clone(), GetDefinition { position }, cx)
4170 }
4171
4172 pub fn type_definition<T: ToPointUtf16>(
4173 &self,
4174 buffer: &ModelHandle<Buffer>,
4175 position: T,
4176 cx: &mut ModelContext<Self>,
4177 ) -> Task<Result<Vec<LocationLink>>> {
4178 let position = position.to_point_utf16(buffer.read(cx));
4179 self.request_primary_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
4180 }
4181
4182 pub fn references<T: ToPointUtf16>(
4183 &self,
4184 buffer: &ModelHandle<Buffer>,
4185 position: T,
4186 cx: &mut ModelContext<Self>,
4187 ) -> Task<Result<Vec<Location>>> {
4188 let position = position.to_point_utf16(buffer.read(cx));
4189 self.request_primary_lsp(buffer.clone(), GetReferences { position }, cx)
4190 }
4191
4192 pub fn document_highlights<T: ToPointUtf16>(
4193 &self,
4194 buffer: &ModelHandle<Buffer>,
4195 position: T,
4196 cx: &mut ModelContext<Self>,
4197 ) -> Task<Result<Vec<DocumentHighlight>>> {
4198 let position = position.to_point_utf16(buffer.read(cx));
4199 self.request_primary_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
4200 }
4201
4202 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
4203 if self.is_local() {
4204 let mut requests = Vec::new();
4205 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
4206 let worktree_id = *worktree_id;
4207 let worktree_handle = self.worktree_for_id(worktree_id, cx);
4208 let worktree = match worktree_handle.and_then(|tree| tree.read(cx).as_local()) {
4209 Some(worktree) => worktree,
4210 None => continue,
4211 };
4212 let worktree_abs_path = worktree.abs_path().clone();
4213
4214 let (adapter, language, server) = match self.language_servers.get(server_id) {
4215 Some(LanguageServerState::Running {
4216 adapter,
4217 language,
4218 server,
4219 ..
4220 }) => (adapter.clone(), language.clone(), server),
4221
4222 _ => continue,
4223 };
4224
4225 requests.push(
4226 server
4227 .request::<lsp::request::WorkspaceSymbolRequest>(
4228 lsp::WorkspaceSymbolParams {
4229 query: query.to_string(),
4230 ..Default::default()
4231 },
4232 )
4233 .log_err()
4234 .map(move |response| {
4235 let lsp_symbols = response.flatten().map(|symbol_response| match symbol_response {
4236 lsp::WorkspaceSymbolResponse::Flat(flat_responses) => {
4237 flat_responses.into_iter().map(|lsp_symbol| {
4238 (lsp_symbol.name, lsp_symbol.kind, lsp_symbol.location)
4239 }).collect::<Vec<_>>()
4240 }
4241 lsp::WorkspaceSymbolResponse::Nested(nested_responses) => {
4242 nested_responses.into_iter().filter_map(|lsp_symbol| {
4243 let location = match lsp_symbol.location {
4244 OneOf::Left(location) => location,
4245 OneOf::Right(_) => {
4246 error!("Unexpected: client capabilities forbid symbol resolutions in workspace.symbol.resolveSupport");
4247 return None
4248 }
4249 };
4250 Some((lsp_symbol.name, lsp_symbol.kind, location))
4251 }).collect::<Vec<_>>()
4252 }
4253 }).unwrap_or_default();
4254
4255 (
4256 adapter,
4257 language,
4258 worktree_id,
4259 worktree_abs_path,
4260 lsp_symbols,
4261 )
4262 }),
4263 );
4264 }
4265
4266 cx.spawn_weak(|this, cx| async move {
4267 let responses = futures::future::join_all(requests).await;
4268 let this = match this.upgrade(&cx) {
4269 Some(this) => this,
4270 None => return Ok(Vec::new()),
4271 };
4272
4273 let symbols = this.read_with(&cx, |this, cx| {
4274 let mut symbols = Vec::new();
4275 for (
4276 adapter,
4277 adapter_language,
4278 source_worktree_id,
4279 worktree_abs_path,
4280 lsp_symbols,
4281 ) in responses
4282 {
4283 symbols.extend(lsp_symbols.into_iter().filter_map(
4284 |(symbol_name, symbol_kind, symbol_location)| {
4285 let abs_path = symbol_location.uri.to_file_path().ok()?;
4286 let mut worktree_id = source_worktree_id;
4287 let path;
4288 if let Some((worktree, rel_path)) =
4289 this.find_local_worktree(&abs_path, cx)
4290 {
4291 worktree_id = worktree.read(cx).id();
4292 path = rel_path;
4293 } else {
4294 path = relativize_path(&worktree_abs_path, &abs_path);
4295 }
4296
4297 let project_path = ProjectPath {
4298 worktree_id,
4299 path: path.into(),
4300 };
4301 let signature = this.symbol_signature(&project_path);
4302 let adapter_language = adapter_language.clone();
4303 let language = this
4304 .languages
4305 .language_for_file(&project_path.path, None)
4306 .unwrap_or_else(move |_| adapter_language);
4307 let language_server_name = adapter.name.clone();
4308 Some(async move {
4309 let language = language.await;
4310 let label =
4311 language.label_for_symbol(&symbol_name, symbol_kind).await;
4312
4313 Symbol {
4314 language_server_name,
4315 source_worktree_id,
4316 path: project_path,
4317 label: label.unwrap_or_else(|| {
4318 CodeLabel::plain(symbol_name.clone(), None)
4319 }),
4320 kind: symbol_kind,
4321 name: symbol_name,
4322 range: range_from_lsp(symbol_location.range),
4323 signature,
4324 }
4325 })
4326 },
4327 ));
4328 }
4329
4330 symbols
4331 });
4332
4333 Ok(futures::future::join_all(symbols).await)
4334 })
4335 } else if let Some(project_id) = self.remote_id() {
4336 let request = self.client.request(proto::GetProjectSymbols {
4337 project_id,
4338 query: query.to_string(),
4339 });
4340 cx.spawn_weak(|this, cx| async move {
4341 let response = request.await?;
4342 let mut symbols = Vec::new();
4343 if let Some(this) = this.upgrade(&cx) {
4344 let new_symbols = this.read_with(&cx, |this, _| {
4345 response
4346 .symbols
4347 .into_iter()
4348 .map(|symbol| this.deserialize_symbol(symbol))
4349 .collect::<Vec<_>>()
4350 });
4351 symbols = futures::future::join_all(new_symbols)
4352 .await
4353 .into_iter()
4354 .filter_map(|symbol| symbol.log_err())
4355 .collect::<Vec<_>>();
4356 }
4357 Ok(symbols)
4358 })
4359 } else {
4360 Task::ready(Ok(Default::default()))
4361 }
4362 }
4363
4364 pub fn open_buffer_for_symbol(
4365 &mut self,
4366 symbol: &Symbol,
4367 cx: &mut ModelContext<Self>,
4368 ) -> Task<Result<ModelHandle<Buffer>>> {
4369 if self.is_local() {
4370 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
4371 symbol.source_worktree_id,
4372 symbol.language_server_name.clone(),
4373 )) {
4374 *id
4375 } else {
4376 return Task::ready(Err(anyhow!(
4377 "language server for worktree and language not found"
4378 )));
4379 };
4380
4381 let worktree_abs_path = if let Some(worktree_abs_path) = self
4382 .worktree_for_id(symbol.path.worktree_id, cx)
4383 .and_then(|worktree| worktree.read(cx).as_local())
4384 .map(|local_worktree| local_worktree.abs_path())
4385 {
4386 worktree_abs_path
4387 } else {
4388 return Task::ready(Err(anyhow!("worktree not found for symbol")));
4389 };
4390 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
4391 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
4392 uri
4393 } else {
4394 return Task::ready(Err(anyhow!("invalid symbol path")));
4395 };
4396
4397 self.open_local_buffer_via_lsp(
4398 symbol_uri,
4399 language_server_id,
4400 symbol.language_server_name.clone(),
4401 cx,
4402 )
4403 } else if let Some(project_id) = self.remote_id() {
4404 let request = self.client.request(proto::OpenBufferForSymbol {
4405 project_id,
4406 symbol: Some(serialize_symbol(symbol)),
4407 });
4408 cx.spawn(|this, mut cx| async move {
4409 let response = request.await?;
4410 this.update(&mut cx, |this, cx| {
4411 this.wait_for_remote_buffer(response.buffer_id, cx)
4412 })
4413 .await
4414 })
4415 } else {
4416 Task::ready(Err(anyhow!("project does not have a remote id")))
4417 }
4418 }
4419
4420 pub fn hover<T: ToPointUtf16>(
4421 &self,
4422 buffer: &ModelHandle<Buffer>,
4423 position: T,
4424 cx: &mut ModelContext<Self>,
4425 ) -> Task<Result<Option<Hover>>> {
4426 let position = position.to_point_utf16(buffer.read(cx));
4427 self.request_primary_lsp(buffer.clone(), GetHover { position }, cx)
4428 }
4429
4430 pub fn completions<T: ToPointUtf16>(
4431 &self,
4432 buffer: &ModelHandle<Buffer>,
4433 position: T,
4434 cx: &mut ModelContext<Self>,
4435 ) -> Task<Result<Vec<Completion>>> {
4436 let position = position.to_point_utf16(buffer.read(cx));
4437 let server_ids: Vec<_> = self
4438 .language_servers_for_buffer(buffer.read(cx), cx)
4439 .map(|(_, server)| server.server_id())
4440 .collect();
4441
4442 let buffer = buffer.clone();
4443 cx.spawn(|this, mut cx| async move {
4444 let mut completions = Vec::new();
4445
4446 for server_id in server_ids {
4447 let new_completions = this
4448 .update(&mut cx, |this, cx| {
4449 this.request_lsp(buffer.clone(), server_id, GetCompletions { position }, cx)
4450 })
4451 .await;
4452
4453 if let Ok(new_completions) = new_completions {
4454 completions.extend_from_slice(&new_completions);
4455 }
4456 }
4457
4458 Ok(completions)
4459 })
4460 }
4461
4462 pub fn apply_additional_edits_for_completion(
4463 &self,
4464 buffer_handle: ModelHandle<Buffer>,
4465 completion: Completion,
4466 push_to_history: bool,
4467 cx: &mut ModelContext<Self>,
4468 ) -> Task<Result<Option<Transaction>>> {
4469 let buffer = buffer_handle.read(cx);
4470 let buffer_id = buffer.remote_id();
4471
4472 if self.is_local() {
4473 let server_id = completion.server_id;
4474 let lang_server = match self.language_server_for_buffer(buffer, server_id, cx) {
4475 Some((_, server)) => server.clone(),
4476 _ => return Task::ready(Ok(Default::default())),
4477 };
4478
4479 cx.spawn(|this, mut cx| async move {
4480 let additional_text_edits = lang_server
4481 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
4482 .await?
4483 .additional_text_edits;
4484 if let Some(edits) = additional_text_edits {
4485 let edits = this
4486 .update(&mut cx, |this, cx| {
4487 this.edits_from_lsp(
4488 &buffer_handle,
4489 edits,
4490 lang_server.server_id(),
4491 None,
4492 cx,
4493 )
4494 })
4495 .await?;
4496
4497 buffer_handle.update(&mut cx, |buffer, cx| {
4498 buffer.finalize_last_transaction();
4499 buffer.start_transaction();
4500
4501 for (range, text) in edits {
4502 let primary = &completion.old_range;
4503 let start_within = primary.start.cmp(&range.start, buffer).is_le()
4504 && primary.end.cmp(&range.start, buffer).is_ge();
4505 let end_within = range.start.cmp(&primary.end, buffer).is_le()
4506 && range.end.cmp(&primary.end, buffer).is_ge();
4507
4508 //Skip additional edits which overlap with the primary completion edit
4509 //https://github.com/zed-industries/zed/pull/1871
4510 if !start_within && !end_within {
4511 buffer.edit([(range, text)], None, cx);
4512 }
4513 }
4514
4515 let transaction = if buffer.end_transaction(cx).is_some() {
4516 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4517 if !push_to_history {
4518 buffer.forget_transaction(transaction.id);
4519 }
4520 Some(transaction)
4521 } else {
4522 None
4523 };
4524 Ok(transaction)
4525 })
4526 } else {
4527 Ok(None)
4528 }
4529 })
4530 } else if let Some(project_id) = self.remote_id() {
4531 let client = self.client.clone();
4532 cx.spawn(|_, mut cx| async move {
4533 let response = client
4534 .request(proto::ApplyCompletionAdditionalEdits {
4535 project_id,
4536 buffer_id,
4537 completion: Some(language::proto::serialize_completion(&completion)),
4538 })
4539 .await?;
4540
4541 if let Some(transaction) = response.transaction {
4542 let transaction = language::proto::deserialize_transaction(transaction)?;
4543 buffer_handle
4544 .update(&mut cx, |buffer, _| {
4545 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
4546 })
4547 .await?;
4548 if push_to_history {
4549 buffer_handle.update(&mut cx, |buffer, _| {
4550 buffer.push_transaction(transaction.clone(), Instant::now());
4551 });
4552 }
4553 Ok(Some(transaction))
4554 } else {
4555 Ok(None)
4556 }
4557 })
4558 } else {
4559 Task::ready(Err(anyhow!("project does not have a remote id")))
4560 }
4561 }
4562
4563 pub fn code_actions<T: Clone + ToOffset>(
4564 &self,
4565 buffer_handle: &ModelHandle<Buffer>,
4566 range: Range<T>,
4567 cx: &mut ModelContext<Self>,
4568 ) -> Task<Result<Vec<CodeAction>>> {
4569 let buffer = buffer_handle.read(cx);
4570 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
4571 self.request_primary_lsp(buffer_handle.clone(), GetCodeActions { range }, cx)
4572 }
4573
4574 pub fn apply_code_action(
4575 &self,
4576 buffer_handle: ModelHandle<Buffer>,
4577 mut action: CodeAction,
4578 push_to_history: bool,
4579 cx: &mut ModelContext<Self>,
4580 ) -> Task<Result<ProjectTransaction>> {
4581 if self.is_local() {
4582 let buffer = buffer_handle.read(cx);
4583 let (lsp_adapter, lang_server) = if let Some((adapter, server)) =
4584 self.language_server_for_buffer(buffer, action.server_id, cx)
4585 {
4586 (adapter.clone(), server.clone())
4587 } else {
4588 return Task::ready(Ok(Default::default()));
4589 };
4590 let range = action.range.to_point_utf16(buffer);
4591
4592 cx.spawn(|this, mut cx| async move {
4593 if let Some(lsp_range) = action
4594 .lsp_action
4595 .data
4596 .as_mut()
4597 .and_then(|d| d.get_mut("codeActionParams"))
4598 .and_then(|d| d.get_mut("range"))
4599 {
4600 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
4601 action.lsp_action = lang_server
4602 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
4603 .await?;
4604 } else {
4605 let actions = this
4606 .update(&mut cx, |this, cx| {
4607 this.code_actions(&buffer_handle, action.range, cx)
4608 })
4609 .await?;
4610 action.lsp_action = actions
4611 .into_iter()
4612 .find(|a| a.lsp_action.title == action.lsp_action.title)
4613 .ok_or_else(|| anyhow!("code action is outdated"))?
4614 .lsp_action;
4615 }
4616
4617 if let Some(edit) = action.lsp_action.edit {
4618 if edit.changes.is_some() || edit.document_changes.is_some() {
4619 return Self::deserialize_workspace_edit(
4620 this,
4621 edit,
4622 push_to_history,
4623 lsp_adapter.clone(),
4624 lang_server.clone(),
4625 &mut cx,
4626 )
4627 .await;
4628 }
4629 }
4630
4631 if let Some(command) = action.lsp_action.command {
4632 this.update(&mut cx, |this, _| {
4633 this.last_workspace_edits_by_language_server
4634 .remove(&lang_server.server_id());
4635 });
4636
4637 let result = lang_server
4638 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
4639 command: command.command,
4640 arguments: command.arguments.unwrap_or_default(),
4641 ..Default::default()
4642 })
4643 .await;
4644
4645 if let Err(err) = result {
4646 // TODO: LSP ERROR
4647 return Err(err);
4648 }
4649
4650 return Ok(this.update(&mut cx, |this, _| {
4651 this.last_workspace_edits_by_language_server
4652 .remove(&lang_server.server_id())
4653 .unwrap_or_default()
4654 }));
4655 }
4656
4657 Ok(ProjectTransaction::default())
4658 })
4659 } else if let Some(project_id) = self.remote_id() {
4660 let client = self.client.clone();
4661 let request = proto::ApplyCodeAction {
4662 project_id,
4663 buffer_id: buffer_handle.read(cx).remote_id(),
4664 action: Some(language::proto::serialize_code_action(&action)),
4665 };
4666 cx.spawn(|this, mut cx| async move {
4667 let response = client
4668 .request(request)
4669 .await?
4670 .transaction
4671 .ok_or_else(|| anyhow!("missing transaction"))?;
4672 this.update(&mut cx, |this, cx| {
4673 this.deserialize_project_transaction(response, push_to_history, cx)
4674 })
4675 .await
4676 })
4677 } else {
4678 Task::ready(Err(anyhow!("project does not have a remote id")))
4679 }
4680 }
4681
4682 fn apply_on_type_formatting(
4683 &self,
4684 buffer: ModelHandle<Buffer>,
4685 position: Anchor,
4686 trigger: String,
4687 cx: &mut ModelContext<Self>,
4688 ) -> Task<Result<Option<Transaction>>> {
4689 if self.is_local() {
4690 cx.spawn(|this, mut cx| async move {
4691 // Do not allow multiple concurrent formatting requests for the
4692 // same buffer.
4693 this.update(&mut cx, |this, cx| {
4694 this.buffers_being_formatted
4695 .insert(buffer.read(cx).remote_id())
4696 });
4697
4698 let _cleanup = defer({
4699 let this = this.clone();
4700 let mut cx = cx.clone();
4701 let closure_buffer = buffer.clone();
4702 move || {
4703 this.update(&mut cx, |this, cx| {
4704 this.buffers_being_formatted
4705 .remove(&closure_buffer.read(cx).remote_id());
4706 });
4707 }
4708 });
4709
4710 buffer
4711 .update(&mut cx, |buffer, _| {
4712 buffer.wait_for_edits(Some(position.timestamp))
4713 })
4714 .await?;
4715 this.update(&mut cx, |this, cx| {
4716 let position = position.to_point_utf16(buffer.read(cx));
4717 this.on_type_format(buffer, position, trigger, false, cx)
4718 })
4719 .await
4720 })
4721 } else if let Some(project_id) = self.remote_id() {
4722 let client = self.client.clone();
4723 let request = proto::OnTypeFormatting {
4724 project_id,
4725 buffer_id: buffer.read(cx).remote_id(),
4726 position: Some(serialize_anchor(&position)),
4727 trigger,
4728 version: serialize_version(&buffer.read(cx).version()),
4729 };
4730 cx.spawn(|_, _| async move {
4731 client
4732 .request(request)
4733 .await?
4734 .transaction
4735 .map(language::proto::deserialize_transaction)
4736 .transpose()
4737 })
4738 } else {
4739 Task::ready(Err(anyhow!("project does not have a remote id")))
4740 }
4741 }
4742
4743 async fn deserialize_edits(
4744 this: ModelHandle<Self>,
4745 buffer_to_edit: ModelHandle<Buffer>,
4746 edits: Vec<lsp::TextEdit>,
4747 push_to_history: bool,
4748 _: Arc<CachedLspAdapter>,
4749 language_server: Arc<LanguageServer>,
4750 cx: &mut AsyncAppContext,
4751 ) -> Result<Option<Transaction>> {
4752 let edits = this
4753 .update(cx, |this, cx| {
4754 this.edits_from_lsp(
4755 &buffer_to_edit,
4756 edits,
4757 language_server.server_id(),
4758 None,
4759 cx,
4760 )
4761 })
4762 .await?;
4763
4764 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4765 buffer.finalize_last_transaction();
4766 buffer.start_transaction();
4767 for (range, text) in edits {
4768 buffer.edit([(range, text)], None, cx);
4769 }
4770
4771 if buffer.end_transaction(cx).is_some() {
4772 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4773 if !push_to_history {
4774 buffer.forget_transaction(transaction.id);
4775 }
4776 Some(transaction)
4777 } else {
4778 None
4779 }
4780 });
4781
4782 Ok(transaction)
4783 }
4784
4785 async fn deserialize_workspace_edit(
4786 this: ModelHandle<Self>,
4787 edit: lsp::WorkspaceEdit,
4788 push_to_history: bool,
4789 lsp_adapter: Arc<CachedLspAdapter>,
4790 language_server: Arc<LanguageServer>,
4791 cx: &mut AsyncAppContext,
4792 ) -> Result<ProjectTransaction> {
4793 let fs = this.read_with(cx, |this, _| this.fs.clone());
4794 let mut operations = Vec::new();
4795 if let Some(document_changes) = edit.document_changes {
4796 match document_changes {
4797 lsp::DocumentChanges::Edits(edits) => {
4798 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
4799 }
4800 lsp::DocumentChanges::Operations(ops) => operations = ops,
4801 }
4802 } else if let Some(changes) = edit.changes {
4803 operations.extend(changes.into_iter().map(|(uri, edits)| {
4804 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
4805 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
4806 uri,
4807 version: None,
4808 },
4809 edits: edits.into_iter().map(OneOf::Left).collect(),
4810 })
4811 }));
4812 }
4813
4814 let mut project_transaction = ProjectTransaction::default();
4815 for operation in operations {
4816 match operation {
4817 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
4818 let abs_path = op
4819 .uri
4820 .to_file_path()
4821 .map_err(|_| anyhow!("can't convert URI to path"))?;
4822
4823 if let Some(parent_path) = abs_path.parent() {
4824 fs.create_dir(parent_path).await?;
4825 }
4826 if abs_path.ends_with("/") {
4827 fs.create_dir(&abs_path).await?;
4828 } else {
4829 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
4830 .await?;
4831 }
4832 }
4833
4834 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
4835 let source_abs_path = op
4836 .old_uri
4837 .to_file_path()
4838 .map_err(|_| anyhow!("can't convert URI to path"))?;
4839 let target_abs_path = op
4840 .new_uri
4841 .to_file_path()
4842 .map_err(|_| anyhow!("can't convert URI to path"))?;
4843 fs.rename(
4844 &source_abs_path,
4845 &target_abs_path,
4846 op.options.map(Into::into).unwrap_or_default(),
4847 )
4848 .await?;
4849 }
4850
4851 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
4852 let abs_path = op
4853 .uri
4854 .to_file_path()
4855 .map_err(|_| anyhow!("can't convert URI to path"))?;
4856 let options = op.options.map(Into::into).unwrap_or_default();
4857 if abs_path.ends_with("/") {
4858 fs.remove_dir(&abs_path, options).await?;
4859 } else {
4860 fs.remove_file(&abs_path, options).await?;
4861 }
4862 }
4863
4864 lsp::DocumentChangeOperation::Edit(op) => {
4865 let buffer_to_edit = this
4866 .update(cx, |this, cx| {
4867 this.open_local_buffer_via_lsp(
4868 op.text_document.uri,
4869 language_server.server_id(),
4870 lsp_adapter.name.clone(),
4871 cx,
4872 )
4873 })
4874 .await?;
4875
4876 let edits = this
4877 .update(cx, |this, cx| {
4878 let edits = op.edits.into_iter().map(|edit| match edit {
4879 OneOf::Left(edit) => edit,
4880 OneOf::Right(edit) => edit.text_edit,
4881 });
4882 this.edits_from_lsp(
4883 &buffer_to_edit,
4884 edits,
4885 language_server.server_id(),
4886 op.text_document.version,
4887 cx,
4888 )
4889 })
4890 .await?;
4891
4892 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4893 buffer.finalize_last_transaction();
4894 buffer.start_transaction();
4895 for (range, text) in edits {
4896 buffer.edit([(range, text)], None, cx);
4897 }
4898 let transaction = if buffer.end_transaction(cx).is_some() {
4899 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4900 if !push_to_history {
4901 buffer.forget_transaction(transaction.id);
4902 }
4903 Some(transaction)
4904 } else {
4905 None
4906 };
4907
4908 transaction
4909 });
4910 if let Some(transaction) = transaction {
4911 project_transaction.0.insert(buffer_to_edit, transaction);
4912 }
4913 }
4914 }
4915 }
4916
4917 Ok(project_transaction)
4918 }
4919
4920 pub fn prepare_rename<T: ToPointUtf16>(
4921 &self,
4922 buffer: ModelHandle<Buffer>,
4923 position: T,
4924 cx: &mut ModelContext<Self>,
4925 ) -> Task<Result<Option<Range<Anchor>>>> {
4926 let position = position.to_point_utf16(buffer.read(cx));
4927 self.request_primary_lsp(buffer, PrepareRename { position }, cx)
4928 }
4929
4930 pub fn perform_rename<T: ToPointUtf16>(
4931 &self,
4932 buffer: ModelHandle<Buffer>,
4933 position: T,
4934 new_name: String,
4935 push_to_history: bool,
4936 cx: &mut ModelContext<Self>,
4937 ) -> Task<Result<ProjectTransaction>> {
4938 let position = position.to_point_utf16(buffer.read(cx));
4939 self.request_primary_lsp(
4940 buffer,
4941 PerformRename {
4942 position,
4943 new_name,
4944 push_to_history,
4945 },
4946 cx,
4947 )
4948 }
4949
4950 pub fn on_type_format<T: ToPointUtf16>(
4951 &self,
4952 buffer: ModelHandle<Buffer>,
4953 position: T,
4954 trigger: String,
4955 push_to_history: bool,
4956 cx: &mut ModelContext<Self>,
4957 ) -> Task<Result<Option<Transaction>>> {
4958 let (position, tab_size) = buffer.read_with(cx, |buffer, cx| {
4959 let position = position.to_point_utf16(buffer);
4960 (
4961 position,
4962 language_settings(buffer.language_at(position).as_ref(), buffer.file(), cx)
4963 .tab_size,
4964 )
4965 });
4966 self.request_primary_lsp(
4967 buffer.clone(),
4968 OnTypeFormatting {
4969 position,
4970 trigger,
4971 options: lsp_command::lsp_formatting_options(tab_size.get()).into(),
4972 push_to_history,
4973 },
4974 cx,
4975 )
4976 }
4977
4978 pub fn inlay_hints<T: ToOffset>(
4979 &self,
4980 buffer_handle: ModelHandle<Buffer>,
4981 range: Range<T>,
4982 cx: &mut ModelContext<Self>,
4983 ) -> Task<Result<Vec<InlayHint>>> {
4984 let buffer = buffer_handle.read(cx);
4985 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
4986 let range_start = range.start;
4987 let range_end = range.end;
4988 let buffer_id = buffer.remote_id();
4989 let buffer_version = buffer.version().clone();
4990 let lsp_request = InlayHints { range };
4991
4992 if self.is_local() {
4993 let lsp_request_task = self.request_primary_lsp(buffer_handle.clone(), lsp_request, cx);
4994 cx.spawn(|_, mut cx| async move {
4995 buffer_handle
4996 .update(&mut cx, |buffer, _| {
4997 buffer.wait_for_edits(vec![range_start.timestamp, range_end.timestamp])
4998 })
4999 .await
5000 .context("waiting for inlay hint request range edits")?;
5001 lsp_request_task.await.context("inlay hints LSP request")
5002 })
5003 } else if let Some(project_id) = self.remote_id() {
5004 let client = self.client.clone();
5005 let request = proto::InlayHints {
5006 project_id,
5007 buffer_id,
5008 start: Some(serialize_anchor(&range_start)),
5009 end: Some(serialize_anchor(&range_end)),
5010 version: serialize_version(&buffer_version),
5011 };
5012 cx.spawn(|project, cx| async move {
5013 let response = client
5014 .request(request)
5015 .await
5016 .context("inlay hints proto request")?;
5017 let hints_request_result = LspCommand::response_from_proto(
5018 lsp_request,
5019 response,
5020 project,
5021 buffer_handle.clone(),
5022 cx,
5023 )
5024 .await;
5025
5026 hints_request_result.context("inlay hints proto response conversion")
5027 })
5028 } else {
5029 Task::ready(Err(anyhow!("project does not have a remote id")))
5030 }
5031 }
5032
5033 #[allow(clippy::type_complexity)]
5034 pub fn search(
5035 &self,
5036 query: SearchQuery,
5037 cx: &mut ModelContext<Self>,
5038 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
5039 if self.is_local() {
5040 let snapshots = self
5041 .visible_worktrees(cx)
5042 .filter_map(|tree| {
5043 let tree = tree.read(cx).as_local()?;
5044 Some(tree.snapshot())
5045 })
5046 .collect::<Vec<_>>();
5047
5048 let background = cx.background().clone();
5049 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
5050 if path_count == 0 {
5051 return Task::ready(Ok(Default::default()));
5052 }
5053 let workers = background.num_cpus().min(path_count);
5054 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
5055 cx.background()
5056 .spawn({
5057 let fs = self.fs.clone();
5058 let background = cx.background().clone();
5059 let query = query.clone();
5060 async move {
5061 let fs = &fs;
5062 let query = &query;
5063 let matching_paths_tx = &matching_paths_tx;
5064 let paths_per_worker = (path_count + workers - 1) / workers;
5065 let snapshots = &snapshots;
5066 background
5067 .scoped(|scope| {
5068 for worker_ix in 0..workers {
5069 let worker_start_ix = worker_ix * paths_per_worker;
5070 let worker_end_ix = worker_start_ix + paths_per_worker;
5071 scope.spawn(async move {
5072 let mut snapshot_start_ix = 0;
5073 let mut abs_path = PathBuf::new();
5074 for snapshot in snapshots {
5075 let snapshot_end_ix =
5076 snapshot_start_ix + snapshot.visible_file_count();
5077 if worker_end_ix <= snapshot_start_ix {
5078 break;
5079 } else if worker_start_ix > snapshot_end_ix {
5080 snapshot_start_ix = snapshot_end_ix;
5081 continue;
5082 } else {
5083 let start_in_snapshot = worker_start_ix
5084 .saturating_sub(snapshot_start_ix);
5085 let end_in_snapshot =
5086 cmp::min(worker_end_ix, snapshot_end_ix)
5087 - snapshot_start_ix;
5088
5089 for entry in snapshot
5090 .files(false, start_in_snapshot)
5091 .take(end_in_snapshot - start_in_snapshot)
5092 {
5093 if matching_paths_tx.is_closed() {
5094 break;
5095 }
5096 let matches = if query
5097 .file_matches(Some(&entry.path))
5098 {
5099 abs_path.clear();
5100 abs_path.push(&snapshot.abs_path());
5101 abs_path.push(&entry.path);
5102 if let Some(file) =
5103 fs.open_sync(&abs_path).await.log_err()
5104 {
5105 query.detect(file).unwrap_or(false)
5106 } else {
5107 false
5108 }
5109 } else {
5110 false
5111 };
5112
5113 if matches {
5114 let project_path =
5115 (snapshot.id(), entry.path.clone());
5116 if matching_paths_tx
5117 .send(project_path)
5118 .await
5119 .is_err()
5120 {
5121 break;
5122 }
5123 }
5124 }
5125
5126 snapshot_start_ix = snapshot_end_ix;
5127 }
5128 }
5129 });
5130 }
5131 })
5132 .await;
5133 }
5134 })
5135 .detach();
5136
5137 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
5138 let open_buffers = self
5139 .opened_buffers
5140 .values()
5141 .filter_map(|b| b.upgrade(cx))
5142 .collect::<HashSet<_>>();
5143 cx.spawn(|this, cx| async move {
5144 for buffer in &open_buffers {
5145 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
5146 buffers_tx.send((buffer.clone(), snapshot)).await?;
5147 }
5148
5149 let open_buffers = Rc::new(RefCell::new(open_buffers));
5150 while let Some(project_path) = matching_paths_rx.next().await {
5151 if buffers_tx.is_closed() {
5152 break;
5153 }
5154
5155 let this = this.clone();
5156 let open_buffers = open_buffers.clone();
5157 let buffers_tx = buffers_tx.clone();
5158 cx.spawn(|mut cx| async move {
5159 if let Some(buffer) = this
5160 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
5161 .await
5162 .log_err()
5163 {
5164 if open_buffers.borrow_mut().insert(buffer.clone()) {
5165 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
5166 buffers_tx.send((buffer, snapshot)).await?;
5167 }
5168 }
5169
5170 Ok::<_, anyhow::Error>(())
5171 })
5172 .detach();
5173 }
5174
5175 Ok::<_, anyhow::Error>(())
5176 })
5177 .detach_and_log_err(cx);
5178
5179 let background = cx.background().clone();
5180 cx.background().spawn(async move {
5181 let query = &query;
5182 let mut matched_buffers = Vec::new();
5183 for _ in 0..workers {
5184 matched_buffers.push(HashMap::default());
5185 }
5186 background
5187 .scoped(|scope| {
5188 for worker_matched_buffers in matched_buffers.iter_mut() {
5189 let mut buffers_rx = buffers_rx.clone();
5190 scope.spawn(async move {
5191 while let Some((buffer, snapshot)) = buffers_rx.next().await {
5192 let buffer_matches = if query.file_matches(
5193 snapshot.file().map(|file| file.path().as_ref()),
5194 ) {
5195 query
5196 .search(&snapshot, None)
5197 .await
5198 .iter()
5199 .map(|range| {
5200 snapshot.anchor_before(range.start)
5201 ..snapshot.anchor_after(range.end)
5202 })
5203 .collect()
5204 } else {
5205 Vec::new()
5206 };
5207 if !buffer_matches.is_empty() {
5208 worker_matched_buffers
5209 .insert(buffer.clone(), buffer_matches);
5210 }
5211 }
5212 });
5213 }
5214 })
5215 .await;
5216 Ok(matched_buffers.into_iter().flatten().collect())
5217 })
5218 } else if let Some(project_id) = self.remote_id() {
5219 let request = self.client.request(query.to_proto(project_id));
5220 cx.spawn(|this, mut cx| async move {
5221 let response = request.await?;
5222 let mut result = HashMap::default();
5223 for location in response.locations {
5224 let target_buffer = this
5225 .update(&mut cx, |this, cx| {
5226 this.wait_for_remote_buffer(location.buffer_id, cx)
5227 })
5228 .await?;
5229 let start = location
5230 .start
5231 .and_then(deserialize_anchor)
5232 .ok_or_else(|| anyhow!("missing target start"))?;
5233 let end = location
5234 .end
5235 .and_then(deserialize_anchor)
5236 .ok_or_else(|| anyhow!("missing target end"))?;
5237 result
5238 .entry(target_buffer)
5239 .or_insert(Vec::new())
5240 .push(start..end)
5241 }
5242 Ok(result)
5243 })
5244 } else {
5245 Task::ready(Ok(Default::default()))
5246 }
5247 }
5248
5249 fn request_primary_lsp<R: LspCommand>(
5250 &self,
5251 buffer_handle: ModelHandle<Buffer>,
5252 request: R,
5253 cx: &mut ModelContext<Self>,
5254 ) -> Task<Result<R::Response>>
5255 where
5256 <R::LspRequest as lsp::request::Request>::Result: Send,
5257 {
5258 let buffer = buffer_handle.read(cx);
5259 let server_id = match self.primary_language_server_for_buffer(buffer, cx) {
5260 Some((_, server)) => server.server_id(),
5261 None => return Task::ready(Ok(Default::default())),
5262 };
5263
5264 self.request_lsp(buffer_handle, server_id, request, cx)
5265 }
5266
5267 fn request_lsp<R: LspCommand>(
5268 &self,
5269 buffer_handle: ModelHandle<Buffer>,
5270 server_id: LanguageServerId,
5271 request: R,
5272 cx: &mut ModelContext<Self>,
5273 ) -> Task<Result<R::Response>>
5274 where
5275 <R::LspRequest as lsp::request::Request>::Result: Send,
5276 {
5277 let buffer = buffer_handle.read(cx);
5278 if self.is_local() {
5279 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
5280 let language_server = self
5281 .language_server_for_buffer(buffer, server_id, cx)
5282 .map(|(_, server)| server.clone());
5283
5284 if let (Some(file), Some(language_server)) = (file, language_server) {
5285 let lsp_params = request.to_lsp(&file.abs_path(cx), buffer, &language_server, cx);
5286 return cx.spawn(|this, cx| async move {
5287 if !request.check_capabilities(language_server.capabilities()) {
5288 return Ok(Default::default());
5289 }
5290
5291 let result = language_server.request::<R::LspRequest>(lsp_params).await;
5292 let response = match result {
5293 Ok(response) => response,
5294
5295 Err(err) => {
5296 log::warn!(
5297 "Generic lsp request to {} failed: {}",
5298 language_server.name(),
5299 err
5300 );
5301 return Err(err);
5302 }
5303 };
5304
5305 request
5306 .response_from_lsp(
5307 response,
5308 this,
5309 buffer_handle,
5310 language_server.server_id(),
5311 cx,
5312 )
5313 .await
5314 });
5315 }
5316 } else if let Some(project_id) = self.remote_id() {
5317 let rpc = self.client.clone();
5318 let message = request.to_proto(project_id, buffer);
5319 return cx.spawn_weak(|this, cx| async move {
5320 // Ensure the project is still alive by the time the task
5321 // is scheduled.
5322 this.upgrade(&cx)
5323 .ok_or_else(|| anyhow!("project dropped"))?;
5324
5325 let response = rpc.request(message).await?;
5326
5327 let this = this
5328 .upgrade(&cx)
5329 .ok_or_else(|| anyhow!("project dropped"))?;
5330 if this.read_with(&cx, |this, _| this.is_read_only()) {
5331 Err(anyhow!("disconnected before completing request"))
5332 } else {
5333 request
5334 .response_from_proto(response, this, buffer_handle, cx)
5335 .await
5336 }
5337 });
5338 }
5339
5340 Task::ready(Ok(Default::default()))
5341 }
5342
5343 pub fn find_or_create_local_worktree(
5344 &mut self,
5345 abs_path: impl AsRef<Path>,
5346 visible: bool,
5347 cx: &mut ModelContext<Self>,
5348 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
5349 let abs_path = abs_path.as_ref();
5350 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
5351 Task::ready(Ok((tree, relative_path)))
5352 } else {
5353 let worktree = self.create_local_worktree(abs_path, visible, cx);
5354 cx.foreground()
5355 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
5356 }
5357 }
5358
5359 pub fn find_local_worktree(
5360 &self,
5361 abs_path: &Path,
5362 cx: &AppContext,
5363 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
5364 for tree in &self.worktrees {
5365 if let Some(tree) = tree.upgrade(cx) {
5366 if let Some(relative_path) = tree
5367 .read(cx)
5368 .as_local()
5369 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
5370 {
5371 return Some((tree.clone(), relative_path.into()));
5372 }
5373 }
5374 }
5375 None
5376 }
5377
5378 pub fn is_shared(&self) -> bool {
5379 match &self.client_state {
5380 Some(ProjectClientState::Local { .. }) => true,
5381 _ => false,
5382 }
5383 }
5384
5385 fn create_local_worktree(
5386 &mut self,
5387 abs_path: impl AsRef<Path>,
5388 visible: bool,
5389 cx: &mut ModelContext<Self>,
5390 ) -> Task<Result<ModelHandle<Worktree>>> {
5391 let fs = self.fs.clone();
5392 let client = self.client.clone();
5393 let next_entry_id = self.next_entry_id.clone();
5394 let path: Arc<Path> = abs_path.as_ref().into();
5395 let task = self
5396 .loading_local_worktrees
5397 .entry(path.clone())
5398 .or_insert_with(|| {
5399 cx.spawn(|project, mut cx| {
5400 async move {
5401 let worktree = Worktree::local(
5402 client.clone(),
5403 path.clone(),
5404 visible,
5405 fs,
5406 next_entry_id,
5407 &mut cx,
5408 )
5409 .await;
5410
5411 project.update(&mut cx, |project, _| {
5412 project.loading_local_worktrees.remove(&path);
5413 });
5414
5415 let worktree = worktree?;
5416 project.update(&mut cx, |project, cx| project.add_worktree(&worktree, cx));
5417 Ok(worktree)
5418 }
5419 .map_err(Arc::new)
5420 })
5421 .shared()
5422 })
5423 .clone();
5424 cx.foreground().spawn(async move {
5425 match task.await {
5426 Ok(worktree) => Ok(worktree),
5427 Err(err) => Err(anyhow!("{}", err)),
5428 }
5429 })
5430 }
5431
5432 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
5433 self.worktrees.retain(|worktree| {
5434 if let Some(worktree) = worktree.upgrade(cx) {
5435 let id = worktree.read(cx).id();
5436 if id == id_to_remove {
5437 cx.emit(Event::WorktreeRemoved(id));
5438 false
5439 } else {
5440 true
5441 }
5442 } else {
5443 false
5444 }
5445 });
5446 self.metadata_changed(cx);
5447 }
5448
5449 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
5450 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
5451 if worktree.read(cx).is_local() {
5452 cx.subscribe(worktree, |this, worktree, event, cx| match event {
5453 worktree::Event::UpdatedEntries(changes) => {
5454 this.update_local_worktree_buffers(&worktree, changes, cx);
5455 this.update_local_worktree_language_servers(&worktree, changes, cx);
5456 this.update_local_worktree_settings(&worktree, changes, cx);
5457 cx.emit(Event::WorktreeUpdatedEntries(
5458 worktree.read(cx).id(),
5459 changes.clone(),
5460 ));
5461 }
5462 worktree::Event::UpdatedGitRepositories(updated_repos) => {
5463 this.update_local_worktree_buffers_git_repos(worktree, updated_repos, cx)
5464 }
5465 })
5466 .detach();
5467 }
5468
5469 let push_strong_handle = {
5470 let worktree = worktree.read(cx);
5471 self.is_shared() || worktree.is_visible() || worktree.is_remote()
5472 };
5473 if push_strong_handle {
5474 self.worktrees
5475 .push(WorktreeHandle::Strong(worktree.clone()));
5476 } else {
5477 self.worktrees
5478 .push(WorktreeHandle::Weak(worktree.downgrade()));
5479 }
5480
5481 let handle_id = worktree.id();
5482 cx.observe_release(worktree, move |this, worktree, cx| {
5483 let _ = this.remove_worktree(worktree.id(), cx);
5484 cx.update_global::<SettingsStore, _, _>(|store, cx| {
5485 store.clear_local_settings(handle_id, cx).log_err()
5486 });
5487 })
5488 .detach();
5489
5490 cx.emit(Event::WorktreeAdded);
5491 self.metadata_changed(cx);
5492 }
5493
5494 fn update_local_worktree_buffers(
5495 &mut self,
5496 worktree_handle: &ModelHandle<Worktree>,
5497 changes: &[(Arc<Path>, ProjectEntryId, PathChange)],
5498 cx: &mut ModelContext<Self>,
5499 ) {
5500 let snapshot = worktree_handle.read(cx).snapshot();
5501
5502 let mut renamed_buffers = Vec::new();
5503 for (path, entry_id, _) in changes {
5504 let worktree_id = worktree_handle.read(cx).id();
5505 let project_path = ProjectPath {
5506 worktree_id,
5507 path: path.clone(),
5508 };
5509
5510 let buffer_id = match self.local_buffer_ids_by_entry_id.get(entry_id) {
5511 Some(&buffer_id) => buffer_id,
5512 None => match self.local_buffer_ids_by_path.get(&project_path) {
5513 Some(&buffer_id) => buffer_id,
5514 None => continue,
5515 },
5516 };
5517
5518 let open_buffer = self.opened_buffers.get(&buffer_id);
5519 let buffer = if let Some(buffer) = open_buffer.and_then(|buffer| buffer.upgrade(cx)) {
5520 buffer
5521 } else {
5522 self.opened_buffers.remove(&buffer_id);
5523 self.local_buffer_ids_by_path.remove(&project_path);
5524 self.local_buffer_ids_by_entry_id.remove(entry_id);
5525 continue;
5526 };
5527
5528 buffer.update(cx, |buffer, cx| {
5529 if let Some(old_file) = File::from_dyn(buffer.file()) {
5530 if old_file.worktree != *worktree_handle {
5531 return;
5532 }
5533
5534 let new_file = if let Some(entry) = snapshot.entry_for_id(old_file.entry_id) {
5535 File {
5536 is_local: true,
5537 entry_id: entry.id,
5538 mtime: entry.mtime,
5539 path: entry.path.clone(),
5540 worktree: worktree_handle.clone(),
5541 is_deleted: false,
5542 }
5543 } else if let Some(entry) = snapshot.entry_for_path(old_file.path().as_ref()) {
5544 File {
5545 is_local: true,
5546 entry_id: entry.id,
5547 mtime: entry.mtime,
5548 path: entry.path.clone(),
5549 worktree: worktree_handle.clone(),
5550 is_deleted: false,
5551 }
5552 } else {
5553 File {
5554 is_local: true,
5555 entry_id: old_file.entry_id,
5556 path: old_file.path().clone(),
5557 mtime: old_file.mtime(),
5558 worktree: worktree_handle.clone(),
5559 is_deleted: true,
5560 }
5561 };
5562
5563 let old_path = old_file.abs_path(cx);
5564 if new_file.abs_path(cx) != old_path {
5565 renamed_buffers.push((cx.handle(), old_file.clone()));
5566 self.local_buffer_ids_by_path.remove(&project_path);
5567 self.local_buffer_ids_by_path.insert(
5568 ProjectPath {
5569 worktree_id,
5570 path: path.clone(),
5571 },
5572 buffer_id,
5573 );
5574 }
5575
5576 if new_file.entry_id != *entry_id {
5577 self.local_buffer_ids_by_entry_id.remove(entry_id);
5578 self.local_buffer_ids_by_entry_id
5579 .insert(new_file.entry_id, buffer_id);
5580 }
5581
5582 if new_file != *old_file {
5583 if let Some(project_id) = self.remote_id() {
5584 self.client
5585 .send(proto::UpdateBufferFile {
5586 project_id,
5587 buffer_id: buffer_id as u64,
5588 file: Some(new_file.to_proto()),
5589 })
5590 .log_err();
5591 }
5592
5593 buffer.file_updated(Arc::new(new_file), cx).detach();
5594 }
5595 }
5596 });
5597 }
5598
5599 for (buffer, old_file) in renamed_buffers {
5600 self.unregister_buffer_from_language_servers(&buffer, &old_file, cx);
5601 self.detect_language_for_buffer(&buffer, cx);
5602 self.register_buffer_with_language_servers(&buffer, cx);
5603 }
5604 }
5605
5606 fn update_local_worktree_language_servers(
5607 &mut self,
5608 worktree_handle: &ModelHandle<Worktree>,
5609 changes: &[(Arc<Path>, ProjectEntryId, PathChange)],
5610 cx: &mut ModelContext<Self>,
5611 ) {
5612 if changes.is_empty() {
5613 return;
5614 }
5615
5616 let worktree_id = worktree_handle.read(cx).id();
5617 let mut language_server_ids = self
5618 .language_server_ids
5619 .iter()
5620 .filter_map(|((server_worktree_id, _), server_id)| {
5621 (*server_worktree_id == worktree_id).then_some(*server_id)
5622 })
5623 .collect::<Vec<_>>();
5624 language_server_ids.sort();
5625 language_server_ids.dedup();
5626
5627 let abs_path = worktree_handle.read(cx).abs_path();
5628 for server_id in &language_server_ids {
5629 if let Some(LanguageServerState::Running {
5630 server,
5631 watched_paths,
5632 ..
5633 }) = self.language_servers.get(server_id)
5634 {
5635 if let Some(watched_paths) = watched_paths.get(&worktree_id) {
5636 let params = lsp::DidChangeWatchedFilesParams {
5637 changes: changes
5638 .iter()
5639 .filter_map(|(path, _, change)| {
5640 if !watched_paths.is_match(&path) {
5641 return None;
5642 }
5643 let typ = match change {
5644 PathChange::Loaded => return None,
5645 PathChange::Added => lsp::FileChangeType::CREATED,
5646 PathChange::Removed => lsp::FileChangeType::DELETED,
5647 PathChange::Updated => lsp::FileChangeType::CHANGED,
5648 PathChange::AddedOrUpdated => lsp::FileChangeType::CHANGED,
5649 };
5650 Some(lsp::FileEvent {
5651 uri: lsp::Url::from_file_path(abs_path.join(path)).unwrap(),
5652 typ,
5653 })
5654 })
5655 .collect(),
5656 };
5657
5658 if !params.changes.is_empty() {
5659 server
5660 .notify::<lsp::notification::DidChangeWatchedFiles>(params)
5661 .log_err();
5662 }
5663 }
5664 }
5665 }
5666 }
5667
5668 fn update_local_worktree_buffers_git_repos(
5669 &mut self,
5670 worktree_handle: ModelHandle<Worktree>,
5671 changed_repos: &UpdatedGitRepositoriesSet,
5672 cx: &mut ModelContext<Self>,
5673 ) {
5674 debug_assert!(worktree_handle.read(cx).is_local());
5675
5676 // Identify the loading buffers whose containing repository that has changed.
5677 let future_buffers = self
5678 .loading_buffers_by_path
5679 .iter()
5680 .filter_map(|(project_path, receiver)| {
5681 if project_path.worktree_id != worktree_handle.read(cx).id() {
5682 return None;
5683 }
5684 let path = &project_path.path;
5685 changed_repos
5686 .iter()
5687 .find(|(work_dir, _)| path.starts_with(work_dir))?;
5688 let receiver = receiver.clone();
5689 let path = path.clone();
5690 Some(async move {
5691 wait_for_loading_buffer(receiver)
5692 .await
5693 .ok()
5694 .map(|buffer| (buffer, path))
5695 })
5696 })
5697 .collect::<FuturesUnordered<_>>();
5698
5699 // Identify the current buffers whose containing repository has changed.
5700 let current_buffers = self
5701 .opened_buffers
5702 .values()
5703 .filter_map(|buffer| {
5704 let buffer = buffer.upgrade(cx)?;
5705 let file = File::from_dyn(buffer.read(cx).file())?;
5706 if file.worktree != worktree_handle {
5707 return None;
5708 }
5709 let path = file.path();
5710 changed_repos
5711 .iter()
5712 .find(|(work_dir, _)| path.starts_with(work_dir))?;
5713 Some((buffer, path.clone()))
5714 })
5715 .collect::<Vec<_>>();
5716
5717 if future_buffers.len() + current_buffers.len() == 0 {
5718 return;
5719 }
5720
5721 let remote_id = self.remote_id();
5722 let client = self.client.clone();
5723 cx.spawn_weak(move |_, mut cx| async move {
5724 // Wait for all of the buffers to load.
5725 let future_buffers = future_buffers.collect::<Vec<_>>().await;
5726
5727 // Reload the diff base for every buffer whose containing git repository has changed.
5728 let snapshot =
5729 worktree_handle.read_with(&cx, |tree, _| tree.as_local().unwrap().snapshot());
5730 let diff_bases_by_buffer = cx
5731 .background()
5732 .spawn(async move {
5733 future_buffers
5734 .into_iter()
5735 .filter_map(|e| e)
5736 .chain(current_buffers)
5737 .filter_map(|(buffer, path)| {
5738 let (work_directory, repo) =
5739 snapshot.repository_and_work_directory_for_path(&path)?;
5740 let repo = snapshot.get_local_repo(&repo)?;
5741 let relative_path = path.strip_prefix(&work_directory).ok()?;
5742 let base_text = repo.repo_ptr.lock().load_index_text(&relative_path);
5743 Some((buffer, base_text))
5744 })
5745 .collect::<Vec<_>>()
5746 })
5747 .await;
5748
5749 // Assign the new diff bases on all of the buffers.
5750 for (buffer, diff_base) in diff_bases_by_buffer {
5751 let buffer_id = buffer.update(&mut cx, |buffer, cx| {
5752 buffer.set_diff_base(diff_base.clone(), cx);
5753 buffer.remote_id()
5754 });
5755 if let Some(project_id) = remote_id {
5756 client
5757 .send(proto::UpdateDiffBase {
5758 project_id,
5759 buffer_id,
5760 diff_base,
5761 })
5762 .log_err();
5763 }
5764 }
5765 })
5766 .detach();
5767 }
5768
5769 fn update_local_worktree_settings(
5770 &mut self,
5771 worktree: &ModelHandle<Worktree>,
5772 changes: &UpdatedEntriesSet,
5773 cx: &mut ModelContext<Self>,
5774 ) {
5775 let project_id = self.remote_id();
5776 let worktree_id = worktree.id();
5777 let worktree = worktree.read(cx).as_local().unwrap();
5778 let remote_worktree_id = worktree.id();
5779
5780 let mut settings_contents = Vec::new();
5781 for (path, _, change) in changes.iter() {
5782 if path.ends_with(&*LOCAL_SETTINGS_RELATIVE_PATH) {
5783 let settings_dir = Arc::from(
5784 path.ancestors()
5785 .nth(LOCAL_SETTINGS_RELATIVE_PATH.components().count())
5786 .unwrap(),
5787 );
5788 let fs = self.fs.clone();
5789 let removed = *change == PathChange::Removed;
5790 let abs_path = worktree.absolutize(path);
5791 settings_contents.push(async move {
5792 (settings_dir, (!removed).then_some(fs.load(&abs_path).await))
5793 });
5794 }
5795 }
5796
5797 if settings_contents.is_empty() {
5798 return;
5799 }
5800
5801 let client = self.client.clone();
5802 cx.spawn_weak(move |_, mut cx| async move {
5803 let settings_contents: Vec<(Arc<Path>, _)> =
5804 futures::future::join_all(settings_contents).await;
5805 cx.update(|cx| {
5806 cx.update_global::<SettingsStore, _, _>(|store, cx| {
5807 for (directory, file_content) in settings_contents {
5808 let file_content = file_content.and_then(|content| content.log_err());
5809 store
5810 .set_local_settings(
5811 worktree_id,
5812 directory.clone(),
5813 file_content.as_ref().map(String::as_str),
5814 cx,
5815 )
5816 .log_err();
5817 if let Some(remote_id) = project_id {
5818 client
5819 .send(proto::UpdateWorktreeSettings {
5820 project_id: remote_id,
5821 worktree_id: remote_worktree_id.to_proto(),
5822 path: directory.to_string_lossy().into_owned(),
5823 content: file_content,
5824 })
5825 .log_err();
5826 }
5827 }
5828 });
5829 });
5830 })
5831 .detach();
5832 }
5833
5834 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
5835 let new_active_entry = entry.and_then(|project_path| {
5836 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
5837 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
5838 Some(entry.id)
5839 });
5840 if new_active_entry != self.active_entry {
5841 self.active_entry = new_active_entry;
5842 cx.emit(Event::ActiveEntryChanged(new_active_entry));
5843 }
5844 }
5845
5846 pub fn language_servers_running_disk_based_diagnostics(
5847 &self,
5848 ) -> impl Iterator<Item = LanguageServerId> + '_ {
5849 self.language_server_statuses
5850 .iter()
5851 .filter_map(|(id, status)| {
5852 if status.has_pending_diagnostic_updates {
5853 Some(*id)
5854 } else {
5855 None
5856 }
5857 })
5858 }
5859
5860 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
5861 let mut summary = DiagnosticSummary::default();
5862 for (_, _, path_summary) in self.diagnostic_summaries(cx) {
5863 summary.error_count += path_summary.error_count;
5864 summary.warning_count += path_summary.warning_count;
5865 }
5866 summary
5867 }
5868
5869 pub fn diagnostic_summaries<'a>(
5870 &'a self,
5871 cx: &'a AppContext,
5872 ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
5873 self.visible_worktrees(cx).flat_map(move |worktree| {
5874 let worktree = worktree.read(cx);
5875 let worktree_id = worktree.id();
5876 worktree
5877 .diagnostic_summaries()
5878 .map(move |(path, server_id, summary)| {
5879 (ProjectPath { worktree_id, path }, server_id, summary)
5880 })
5881 })
5882 }
5883
5884 pub fn disk_based_diagnostics_started(
5885 &mut self,
5886 language_server_id: LanguageServerId,
5887 cx: &mut ModelContext<Self>,
5888 ) {
5889 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
5890 }
5891
5892 pub fn disk_based_diagnostics_finished(
5893 &mut self,
5894 language_server_id: LanguageServerId,
5895 cx: &mut ModelContext<Self>,
5896 ) {
5897 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
5898 }
5899
5900 pub fn active_entry(&self) -> Option<ProjectEntryId> {
5901 self.active_entry
5902 }
5903
5904 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
5905 self.worktree_for_id(path.worktree_id, cx)?
5906 .read(cx)
5907 .entry_for_path(&path.path)
5908 .cloned()
5909 }
5910
5911 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
5912 let worktree = self.worktree_for_entry(entry_id, cx)?;
5913 let worktree = worktree.read(cx);
5914 let worktree_id = worktree.id();
5915 let path = worktree.entry_for_id(entry_id)?.path.clone();
5916 Some(ProjectPath { worktree_id, path })
5917 }
5918
5919 pub fn absolute_path(&self, project_path: &ProjectPath, cx: &AppContext) -> Option<PathBuf> {
5920 let workspace_root = self
5921 .worktree_for_id(project_path.worktree_id, cx)?
5922 .read(cx)
5923 .abs_path();
5924 let project_path = project_path.path.as_ref();
5925
5926 Some(if project_path == Path::new("") {
5927 workspace_root.to_path_buf()
5928 } else {
5929 workspace_root.join(project_path)
5930 })
5931 }
5932
5933 // RPC message handlers
5934
5935 async fn handle_unshare_project(
5936 this: ModelHandle<Self>,
5937 _: TypedEnvelope<proto::UnshareProject>,
5938 _: Arc<Client>,
5939 mut cx: AsyncAppContext,
5940 ) -> Result<()> {
5941 this.update(&mut cx, |this, cx| {
5942 if this.is_local() {
5943 this.unshare(cx)?;
5944 } else {
5945 this.disconnected_from_host(cx);
5946 }
5947 Ok(())
5948 })
5949 }
5950
5951 async fn handle_add_collaborator(
5952 this: ModelHandle<Self>,
5953 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
5954 _: Arc<Client>,
5955 mut cx: AsyncAppContext,
5956 ) -> Result<()> {
5957 let collaborator = envelope
5958 .payload
5959 .collaborator
5960 .take()
5961 .ok_or_else(|| anyhow!("empty collaborator"))?;
5962
5963 let collaborator = Collaborator::from_proto(collaborator)?;
5964 this.update(&mut cx, |this, cx| {
5965 this.shared_buffers.remove(&collaborator.peer_id);
5966 this.collaborators
5967 .insert(collaborator.peer_id, collaborator);
5968 cx.notify();
5969 });
5970
5971 Ok(())
5972 }
5973
5974 async fn handle_update_project_collaborator(
5975 this: ModelHandle<Self>,
5976 envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
5977 _: Arc<Client>,
5978 mut cx: AsyncAppContext,
5979 ) -> Result<()> {
5980 let old_peer_id = envelope
5981 .payload
5982 .old_peer_id
5983 .ok_or_else(|| anyhow!("missing old peer id"))?;
5984 let new_peer_id = envelope
5985 .payload
5986 .new_peer_id
5987 .ok_or_else(|| anyhow!("missing new peer id"))?;
5988 this.update(&mut cx, |this, cx| {
5989 let collaborator = this
5990 .collaborators
5991 .remove(&old_peer_id)
5992 .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
5993 let is_host = collaborator.replica_id == 0;
5994 this.collaborators.insert(new_peer_id, collaborator);
5995
5996 let buffers = this.shared_buffers.remove(&old_peer_id);
5997 log::info!(
5998 "peer {} became {}. moving buffers {:?}",
5999 old_peer_id,
6000 new_peer_id,
6001 &buffers
6002 );
6003 if let Some(buffers) = buffers {
6004 this.shared_buffers.insert(new_peer_id, buffers);
6005 }
6006
6007 if is_host {
6008 this.opened_buffers
6009 .retain(|_, buffer| !matches!(buffer, OpenBuffer::Operations(_)));
6010 this.buffer_ordered_messages_tx
6011 .unbounded_send(BufferOrderedMessage::Resync)
6012 .unwrap();
6013 }
6014
6015 cx.emit(Event::CollaboratorUpdated {
6016 old_peer_id,
6017 new_peer_id,
6018 });
6019 cx.notify();
6020 Ok(())
6021 })
6022 }
6023
6024 async fn handle_remove_collaborator(
6025 this: ModelHandle<Self>,
6026 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
6027 _: Arc<Client>,
6028 mut cx: AsyncAppContext,
6029 ) -> Result<()> {
6030 this.update(&mut cx, |this, cx| {
6031 let peer_id = envelope
6032 .payload
6033 .peer_id
6034 .ok_or_else(|| anyhow!("invalid peer id"))?;
6035 let replica_id = this
6036 .collaborators
6037 .remove(&peer_id)
6038 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
6039 .replica_id;
6040 for buffer in this.opened_buffers.values() {
6041 if let Some(buffer) = buffer.upgrade(cx) {
6042 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
6043 }
6044 }
6045 this.shared_buffers.remove(&peer_id);
6046
6047 cx.emit(Event::CollaboratorLeft(peer_id));
6048 cx.notify();
6049 Ok(())
6050 })
6051 }
6052
6053 async fn handle_update_project(
6054 this: ModelHandle<Self>,
6055 envelope: TypedEnvelope<proto::UpdateProject>,
6056 _: Arc<Client>,
6057 mut cx: AsyncAppContext,
6058 ) -> Result<()> {
6059 this.update(&mut cx, |this, cx| {
6060 // Don't handle messages that were sent before the response to us joining the project
6061 if envelope.message_id > this.join_project_response_message_id {
6062 this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
6063 }
6064 Ok(())
6065 })
6066 }
6067
6068 async fn handle_update_worktree(
6069 this: ModelHandle<Self>,
6070 envelope: TypedEnvelope<proto::UpdateWorktree>,
6071 _: Arc<Client>,
6072 mut cx: AsyncAppContext,
6073 ) -> Result<()> {
6074 this.update(&mut cx, |this, cx| {
6075 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
6076 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
6077 worktree.update(cx, |worktree, _| {
6078 let worktree = worktree.as_remote_mut().unwrap();
6079 worktree.update_from_remote(envelope.payload);
6080 });
6081 }
6082 Ok(())
6083 })
6084 }
6085
6086 async fn handle_update_worktree_settings(
6087 this: ModelHandle<Self>,
6088 envelope: TypedEnvelope<proto::UpdateWorktreeSettings>,
6089 _: Arc<Client>,
6090 mut cx: AsyncAppContext,
6091 ) -> Result<()> {
6092 this.update(&mut cx, |this, cx| {
6093 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
6094 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
6095 cx.update_global::<SettingsStore, _, _>(|store, cx| {
6096 store
6097 .set_local_settings(
6098 worktree.id(),
6099 PathBuf::from(&envelope.payload.path).into(),
6100 envelope.payload.content.as_ref().map(String::as_str),
6101 cx,
6102 )
6103 .log_err();
6104 });
6105 }
6106 Ok(())
6107 })
6108 }
6109
6110 async fn handle_create_project_entry(
6111 this: ModelHandle<Self>,
6112 envelope: TypedEnvelope<proto::CreateProjectEntry>,
6113 _: Arc<Client>,
6114 mut cx: AsyncAppContext,
6115 ) -> Result<proto::ProjectEntryResponse> {
6116 let worktree = this.update(&mut cx, |this, cx| {
6117 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
6118 this.worktree_for_id(worktree_id, cx)
6119 .ok_or_else(|| anyhow!("worktree not found"))
6120 })?;
6121 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
6122 let entry = worktree
6123 .update(&mut cx, |worktree, cx| {
6124 let worktree = worktree.as_local_mut().unwrap();
6125 let path = PathBuf::from(envelope.payload.path);
6126 worktree.create_entry(path, envelope.payload.is_directory, cx)
6127 })
6128 .await?;
6129 Ok(proto::ProjectEntryResponse {
6130 entry: Some((&entry).into()),
6131 worktree_scan_id: worktree_scan_id as u64,
6132 })
6133 }
6134
6135 async fn handle_rename_project_entry(
6136 this: ModelHandle<Self>,
6137 envelope: TypedEnvelope<proto::RenameProjectEntry>,
6138 _: Arc<Client>,
6139 mut cx: AsyncAppContext,
6140 ) -> Result<proto::ProjectEntryResponse> {
6141 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
6142 let worktree = this.read_with(&cx, |this, cx| {
6143 this.worktree_for_entry(entry_id, cx)
6144 .ok_or_else(|| anyhow!("worktree not found"))
6145 })?;
6146 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
6147 let entry = worktree
6148 .update(&mut cx, |worktree, cx| {
6149 let new_path = PathBuf::from(envelope.payload.new_path);
6150 worktree
6151 .as_local_mut()
6152 .unwrap()
6153 .rename_entry(entry_id, new_path, cx)
6154 .ok_or_else(|| anyhow!("invalid entry"))
6155 })?
6156 .await?;
6157 Ok(proto::ProjectEntryResponse {
6158 entry: Some((&entry).into()),
6159 worktree_scan_id: worktree_scan_id as u64,
6160 })
6161 }
6162
6163 async fn handle_copy_project_entry(
6164 this: ModelHandle<Self>,
6165 envelope: TypedEnvelope<proto::CopyProjectEntry>,
6166 _: Arc<Client>,
6167 mut cx: AsyncAppContext,
6168 ) -> Result<proto::ProjectEntryResponse> {
6169 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
6170 let worktree = this.read_with(&cx, |this, cx| {
6171 this.worktree_for_entry(entry_id, cx)
6172 .ok_or_else(|| anyhow!("worktree not found"))
6173 })?;
6174 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
6175 let entry = worktree
6176 .update(&mut cx, |worktree, cx| {
6177 let new_path = PathBuf::from(envelope.payload.new_path);
6178 worktree
6179 .as_local_mut()
6180 .unwrap()
6181 .copy_entry(entry_id, new_path, cx)
6182 .ok_or_else(|| anyhow!("invalid entry"))
6183 })?
6184 .await?;
6185 Ok(proto::ProjectEntryResponse {
6186 entry: Some((&entry).into()),
6187 worktree_scan_id: worktree_scan_id as u64,
6188 })
6189 }
6190
6191 async fn handle_delete_project_entry(
6192 this: ModelHandle<Self>,
6193 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
6194 _: Arc<Client>,
6195 mut cx: AsyncAppContext,
6196 ) -> Result<proto::ProjectEntryResponse> {
6197 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
6198
6199 this.update(&mut cx, |_, cx| cx.emit(Event::DeletedEntry(entry_id)));
6200
6201 let worktree = this.read_with(&cx, |this, cx| {
6202 this.worktree_for_entry(entry_id, cx)
6203 .ok_or_else(|| anyhow!("worktree not found"))
6204 })?;
6205 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
6206 worktree
6207 .update(&mut cx, |worktree, cx| {
6208 worktree
6209 .as_local_mut()
6210 .unwrap()
6211 .delete_entry(entry_id, cx)
6212 .ok_or_else(|| anyhow!("invalid entry"))
6213 })?
6214 .await?;
6215 Ok(proto::ProjectEntryResponse {
6216 entry: None,
6217 worktree_scan_id: worktree_scan_id as u64,
6218 })
6219 }
6220
6221 async fn handle_expand_project_entry(
6222 this: ModelHandle<Self>,
6223 envelope: TypedEnvelope<proto::ExpandProjectEntry>,
6224 _: Arc<Client>,
6225 mut cx: AsyncAppContext,
6226 ) -> Result<proto::ExpandProjectEntryResponse> {
6227 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
6228 let worktree = this
6229 .read_with(&cx, |this, cx| this.worktree_for_entry(entry_id, cx))
6230 .ok_or_else(|| anyhow!("invalid request"))?;
6231 worktree
6232 .update(&mut cx, |worktree, cx| {
6233 worktree
6234 .as_local_mut()
6235 .unwrap()
6236 .expand_entry(entry_id, cx)
6237 .ok_or_else(|| anyhow!("invalid entry"))
6238 })?
6239 .await?;
6240 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id()) as u64;
6241 Ok(proto::ExpandProjectEntryResponse { worktree_scan_id })
6242 }
6243
6244 async fn handle_update_diagnostic_summary(
6245 this: ModelHandle<Self>,
6246 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
6247 _: Arc<Client>,
6248 mut cx: AsyncAppContext,
6249 ) -> Result<()> {
6250 this.update(&mut cx, |this, cx| {
6251 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
6252 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
6253 if let Some(summary) = envelope.payload.summary {
6254 let project_path = ProjectPath {
6255 worktree_id,
6256 path: Path::new(&summary.path).into(),
6257 };
6258 worktree.update(cx, |worktree, _| {
6259 worktree
6260 .as_remote_mut()
6261 .unwrap()
6262 .update_diagnostic_summary(project_path.path.clone(), &summary);
6263 });
6264 cx.emit(Event::DiagnosticsUpdated {
6265 language_server_id: LanguageServerId(summary.language_server_id as usize),
6266 path: project_path,
6267 });
6268 }
6269 }
6270 Ok(())
6271 })
6272 }
6273
6274 async fn handle_start_language_server(
6275 this: ModelHandle<Self>,
6276 envelope: TypedEnvelope<proto::StartLanguageServer>,
6277 _: Arc<Client>,
6278 mut cx: AsyncAppContext,
6279 ) -> Result<()> {
6280 let server = envelope
6281 .payload
6282 .server
6283 .ok_or_else(|| anyhow!("invalid server"))?;
6284 this.update(&mut cx, |this, cx| {
6285 this.language_server_statuses.insert(
6286 LanguageServerId(server.id as usize),
6287 LanguageServerStatus {
6288 name: server.name,
6289 pending_work: Default::default(),
6290 has_pending_diagnostic_updates: false,
6291 progress_tokens: Default::default(),
6292 },
6293 );
6294 cx.notify();
6295 });
6296 Ok(())
6297 }
6298
6299 async fn handle_update_language_server(
6300 this: ModelHandle<Self>,
6301 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
6302 _: Arc<Client>,
6303 mut cx: AsyncAppContext,
6304 ) -> Result<()> {
6305 this.update(&mut cx, |this, cx| {
6306 let language_server_id = LanguageServerId(envelope.payload.language_server_id as usize);
6307
6308 match envelope
6309 .payload
6310 .variant
6311 .ok_or_else(|| anyhow!("invalid variant"))?
6312 {
6313 proto::update_language_server::Variant::WorkStart(payload) => {
6314 this.on_lsp_work_start(
6315 language_server_id,
6316 payload.token,
6317 LanguageServerProgress {
6318 message: payload.message,
6319 percentage: payload.percentage.map(|p| p as usize),
6320 last_update_at: Instant::now(),
6321 },
6322 cx,
6323 );
6324 }
6325
6326 proto::update_language_server::Variant::WorkProgress(payload) => {
6327 this.on_lsp_work_progress(
6328 language_server_id,
6329 payload.token,
6330 LanguageServerProgress {
6331 message: payload.message,
6332 percentage: payload.percentage.map(|p| p as usize),
6333 last_update_at: Instant::now(),
6334 },
6335 cx,
6336 );
6337 }
6338
6339 proto::update_language_server::Variant::WorkEnd(payload) => {
6340 this.on_lsp_work_end(language_server_id, payload.token, cx);
6341 }
6342
6343 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
6344 this.disk_based_diagnostics_started(language_server_id, cx);
6345 }
6346
6347 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
6348 this.disk_based_diagnostics_finished(language_server_id, cx)
6349 }
6350 }
6351
6352 Ok(())
6353 })
6354 }
6355
6356 async fn handle_update_buffer(
6357 this: ModelHandle<Self>,
6358 envelope: TypedEnvelope<proto::UpdateBuffer>,
6359 _: Arc<Client>,
6360 mut cx: AsyncAppContext,
6361 ) -> Result<proto::Ack> {
6362 this.update(&mut cx, |this, cx| {
6363 let payload = envelope.payload.clone();
6364 let buffer_id = payload.buffer_id;
6365 let ops = payload
6366 .operations
6367 .into_iter()
6368 .map(language::proto::deserialize_operation)
6369 .collect::<Result<Vec<_>, _>>()?;
6370 let is_remote = this.is_remote();
6371 match this.opened_buffers.entry(buffer_id) {
6372 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
6373 OpenBuffer::Strong(buffer) => {
6374 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
6375 }
6376 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
6377 OpenBuffer::Weak(_) => {}
6378 },
6379 hash_map::Entry::Vacant(e) => {
6380 assert!(
6381 is_remote,
6382 "received buffer update from {:?}",
6383 envelope.original_sender_id
6384 );
6385 e.insert(OpenBuffer::Operations(ops));
6386 }
6387 }
6388 Ok(proto::Ack {})
6389 })
6390 }
6391
6392 async fn handle_create_buffer_for_peer(
6393 this: ModelHandle<Self>,
6394 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
6395 _: Arc<Client>,
6396 mut cx: AsyncAppContext,
6397 ) -> Result<()> {
6398 this.update(&mut cx, |this, cx| {
6399 match envelope
6400 .payload
6401 .variant
6402 .ok_or_else(|| anyhow!("missing variant"))?
6403 {
6404 proto::create_buffer_for_peer::Variant::State(mut state) => {
6405 let mut buffer_file = None;
6406 if let Some(file) = state.file.take() {
6407 let worktree_id = WorktreeId::from_proto(file.worktree_id);
6408 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
6409 anyhow!("no worktree found for id {}", file.worktree_id)
6410 })?;
6411 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
6412 as Arc<dyn language::File>);
6413 }
6414
6415 let buffer_id = state.id;
6416 let buffer = cx.add_model(|_| {
6417 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
6418 });
6419 this.incomplete_remote_buffers
6420 .insert(buffer_id, Some(buffer));
6421 }
6422 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
6423 let buffer = this
6424 .incomplete_remote_buffers
6425 .get(&chunk.buffer_id)
6426 .cloned()
6427 .flatten()
6428 .ok_or_else(|| {
6429 anyhow!(
6430 "received chunk for buffer {} without initial state",
6431 chunk.buffer_id
6432 )
6433 })?;
6434 let operations = chunk
6435 .operations
6436 .into_iter()
6437 .map(language::proto::deserialize_operation)
6438 .collect::<Result<Vec<_>>>()?;
6439 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
6440
6441 if chunk.is_last {
6442 this.incomplete_remote_buffers.remove(&chunk.buffer_id);
6443 this.register_buffer(&buffer, cx)?;
6444 }
6445 }
6446 }
6447
6448 Ok(())
6449 })
6450 }
6451
6452 async fn handle_update_diff_base(
6453 this: ModelHandle<Self>,
6454 envelope: TypedEnvelope<proto::UpdateDiffBase>,
6455 _: Arc<Client>,
6456 mut cx: AsyncAppContext,
6457 ) -> Result<()> {
6458 this.update(&mut cx, |this, cx| {
6459 let buffer_id = envelope.payload.buffer_id;
6460 let diff_base = envelope.payload.diff_base;
6461 if let Some(buffer) = this
6462 .opened_buffers
6463 .get_mut(&buffer_id)
6464 .and_then(|b| b.upgrade(cx))
6465 .or_else(|| {
6466 this.incomplete_remote_buffers
6467 .get(&buffer_id)
6468 .cloned()
6469 .flatten()
6470 })
6471 {
6472 buffer.update(cx, |buffer, cx| buffer.set_diff_base(diff_base, cx));
6473 }
6474 Ok(())
6475 })
6476 }
6477
6478 async fn handle_update_buffer_file(
6479 this: ModelHandle<Self>,
6480 envelope: TypedEnvelope<proto::UpdateBufferFile>,
6481 _: Arc<Client>,
6482 mut cx: AsyncAppContext,
6483 ) -> Result<()> {
6484 let buffer_id = envelope.payload.buffer_id;
6485
6486 this.update(&mut cx, |this, cx| {
6487 let payload = envelope.payload.clone();
6488 if let Some(buffer) = this
6489 .opened_buffers
6490 .get(&buffer_id)
6491 .and_then(|b| b.upgrade(cx))
6492 .or_else(|| {
6493 this.incomplete_remote_buffers
6494 .get(&buffer_id)
6495 .cloned()
6496 .flatten()
6497 })
6498 {
6499 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
6500 let worktree = this
6501 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
6502 .ok_or_else(|| anyhow!("no such worktree"))?;
6503 let file = File::from_proto(file, worktree, cx)?;
6504 buffer.update(cx, |buffer, cx| {
6505 buffer.file_updated(Arc::new(file), cx).detach();
6506 });
6507 this.detect_language_for_buffer(&buffer, cx);
6508 }
6509 Ok(())
6510 })
6511 }
6512
6513 async fn handle_save_buffer(
6514 this: ModelHandle<Self>,
6515 envelope: TypedEnvelope<proto::SaveBuffer>,
6516 _: Arc<Client>,
6517 mut cx: AsyncAppContext,
6518 ) -> Result<proto::BufferSaved> {
6519 let buffer_id = envelope.payload.buffer_id;
6520 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
6521 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
6522 let buffer = this
6523 .opened_buffers
6524 .get(&buffer_id)
6525 .and_then(|buffer| buffer.upgrade(cx))
6526 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
6527 anyhow::Ok((project_id, buffer))
6528 })?;
6529 buffer
6530 .update(&mut cx, |buffer, _| {
6531 buffer.wait_for_version(deserialize_version(&envelope.payload.version))
6532 })
6533 .await?;
6534 let buffer_id = buffer.read_with(&cx, |buffer, _| buffer.remote_id());
6535
6536 this.update(&mut cx, |this, cx| this.save_buffer(buffer.clone(), cx))
6537 .await?;
6538 Ok(buffer.read_with(&cx, |buffer, _| proto::BufferSaved {
6539 project_id,
6540 buffer_id,
6541 version: serialize_version(buffer.saved_version()),
6542 mtime: Some(buffer.saved_mtime().into()),
6543 fingerprint: language::proto::serialize_fingerprint(buffer.saved_version_fingerprint()),
6544 }))
6545 }
6546
6547 async fn handle_reload_buffers(
6548 this: ModelHandle<Self>,
6549 envelope: TypedEnvelope<proto::ReloadBuffers>,
6550 _: Arc<Client>,
6551 mut cx: AsyncAppContext,
6552 ) -> Result<proto::ReloadBuffersResponse> {
6553 let sender_id = envelope.original_sender_id()?;
6554 let reload = this.update(&mut cx, |this, cx| {
6555 let mut buffers = HashSet::default();
6556 for buffer_id in &envelope.payload.buffer_ids {
6557 buffers.insert(
6558 this.opened_buffers
6559 .get(buffer_id)
6560 .and_then(|buffer| buffer.upgrade(cx))
6561 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
6562 );
6563 }
6564 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
6565 })?;
6566
6567 let project_transaction = reload.await?;
6568 let project_transaction = this.update(&mut cx, |this, cx| {
6569 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
6570 });
6571 Ok(proto::ReloadBuffersResponse {
6572 transaction: Some(project_transaction),
6573 })
6574 }
6575
6576 async fn handle_synchronize_buffers(
6577 this: ModelHandle<Self>,
6578 envelope: TypedEnvelope<proto::SynchronizeBuffers>,
6579 _: Arc<Client>,
6580 mut cx: AsyncAppContext,
6581 ) -> Result<proto::SynchronizeBuffersResponse> {
6582 let project_id = envelope.payload.project_id;
6583 let mut response = proto::SynchronizeBuffersResponse {
6584 buffers: Default::default(),
6585 };
6586
6587 this.update(&mut cx, |this, cx| {
6588 let Some(guest_id) = envelope.original_sender_id else {
6589 error!("missing original_sender_id on SynchronizeBuffers request");
6590 return;
6591 };
6592
6593 this.shared_buffers.entry(guest_id).or_default().clear();
6594 for buffer in envelope.payload.buffers {
6595 let buffer_id = buffer.id;
6596 let remote_version = language::proto::deserialize_version(&buffer.version);
6597 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
6598 this.shared_buffers
6599 .entry(guest_id)
6600 .or_default()
6601 .insert(buffer_id);
6602
6603 let buffer = buffer.read(cx);
6604 response.buffers.push(proto::BufferVersion {
6605 id: buffer_id,
6606 version: language::proto::serialize_version(&buffer.version),
6607 });
6608
6609 let operations = buffer.serialize_ops(Some(remote_version), cx);
6610 let client = this.client.clone();
6611 if let Some(file) = buffer.file() {
6612 client
6613 .send(proto::UpdateBufferFile {
6614 project_id,
6615 buffer_id: buffer_id as u64,
6616 file: Some(file.to_proto()),
6617 })
6618 .log_err();
6619 }
6620
6621 client
6622 .send(proto::UpdateDiffBase {
6623 project_id,
6624 buffer_id: buffer_id as u64,
6625 diff_base: buffer.diff_base().map(Into::into),
6626 })
6627 .log_err();
6628
6629 client
6630 .send(proto::BufferReloaded {
6631 project_id,
6632 buffer_id,
6633 version: language::proto::serialize_version(buffer.saved_version()),
6634 mtime: Some(buffer.saved_mtime().into()),
6635 fingerprint: language::proto::serialize_fingerprint(
6636 buffer.saved_version_fingerprint(),
6637 ),
6638 line_ending: language::proto::serialize_line_ending(
6639 buffer.line_ending(),
6640 ) as i32,
6641 })
6642 .log_err();
6643
6644 cx.background()
6645 .spawn(
6646 async move {
6647 let operations = operations.await;
6648 for chunk in split_operations(operations) {
6649 client
6650 .request(proto::UpdateBuffer {
6651 project_id,
6652 buffer_id,
6653 operations: chunk,
6654 })
6655 .await?;
6656 }
6657 anyhow::Ok(())
6658 }
6659 .log_err(),
6660 )
6661 .detach();
6662 }
6663 }
6664 });
6665
6666 Ok(response)
6667 }
6668
6669 async fn handle_format_buffers(
6670 this: ModelHandle<Self>,
6671 envelope: TypedEnvelope<proto::FormatBuffers>,
6672 _: Arc<Client>,
6673 mut cx: AsyncAppContext,
6674 ) -> Result<proto::FormatBuffersResponse> {
6675 let sender_id = envelope.original_sender_id()?;
6676 let format = this.update(&mut cx, |this, cx| {
6677 let mut buffers = HashSet::default();
6678 for buffer_id in &envelope.payload.buffer_ids {
6679 buffers.insert(
6680 this.opened_buffers
6681 .get(buffer_id)
6682 .and_then(|buffer| buffer.upgrade(cx))
6683 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
6684 );
6685 }
6686 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
6687 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
6688 })?;
6689
6690 let project_transaction = format.await?;
6691 let project_transaction = this.update(&mut cx, |this, cx| {
6692 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
6693 });
6694 Ok(proto::FormatBuffersResponse {
6695 transaction: Some(project_transaction),
6696 })
6697 }
6698
6699 async fn handle_apply_additional_edits_for_completion(
6700 this: ModelHandle<Self>,
6701 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
6702 _: Arc<Client>,
6703 mut cx: AsyncAppContext,
6704 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
6705 let (buffer, completion) = this.update(&mut cx, |this, cx| {
6706 let buffer = this
6707 .opened_buffers
6708 .get(&envelope.payload.buffer_id)
6709 .and_then(|buffer| buffer.upgrade(cx))
6710 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
6711 let language = buffer.read(cx).language();
6712 let completion = language::proto::deserialize_completion(
6713 envelope
6714 .payload
6715 .completion
6716 .ok_or_else(|| anyhow!("invalid completion"))?,
6717 language.cloned(),
6718 );
6719 Ok::<_, anyhow::Error>((buffer, completion))
6720 })?;
6721
6722 let completion = completion.await?;
6723
6724 let apply_additional_edits = this.update(&mut cx, |this, cx| {
6725 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
6726 });
6727
6728 Ok(proto::ApplyCompletionAdditionalEditsResponse {
6729 transaction: apply_additional_edits
6730 .await?
6731 .as_ref()
6732 .map(language::proto::serialize_transaction),
6733 })
6734 }
6735
6736 async fn handle_apply_code_action(
6737 this: ModelHandle<Self>,
6738 envelope: TypedEnvelope<proto::ApplyCodeAction>,
6739 _: Arc<Client>,
6740 mut cx: AsyncAppContext,
6741 ) -> Result<proto::ApplyCodeActionResponse> {
6742 let sender_id = envelope.original_sender_id()?;
6743 let action = language::proto::deserialize_code_action(
6744 envelope
6745 .payload
6746 .action
6747 .ok_or_else(|| anyhow!("invalid action"))?,
6748 )?;
6749 let apply_code_action = this.update(&mut cx, |this, cx| {
6750 let buffer = this
6751 .opened_buffers
6752 .get(&envelope.payload.buffer_id)
6753 .and_then(|buffer| buffer.upgrade(cx))
6754 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
6755 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
6756 })?;
6757
6758 let project_transaction = apply_code_action.await?;
6759 let project_transaction = this.update(&mut cx, |this, cx| {
6760 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
6761 });
6762 Ok(proto::ApplyCodeActionResponse {
6763 transaction: Some(project_transaction),
6764 })
6765 }
6766
6767 async fn handle_on_type_formatting(
6768 this: ModelHandle<Self>,
6769 envelope: TypedEnvelope<proto::OnTypeFormatting>,
6770 _: Arc<Client>,
6771 mut cx: AsyncAppContext,
6772 ) -> Result<proto::OnTypeFormattingResponse> {
6773 let on_type_formatting = this.update(&mut cx, |this, cx| {
6774 let buffer = this
6775 .opened_buffers
6776 .get(&envelope.payload.buffer_id)
6777 .and_then(|buffer| buffer.upgrade(cx))
6778 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
6779 let position = envelope
6780 .payload
6781 .position
6782 .and_then(deserialize_anchor)
6783 .ok_or_else(|| anyhow!("invalid position"))?;
6784 Ok::<_, anyhow::Error>(this.apply_on_type_formatting(
6785 buffer,
6786 position,
6787 envelope.payload.trigger.clone(),
6788 cx,
6789 ))
6790 })?;
6791
6792 let transaction = on_type_formatting
6793 .await?
6794 .as_ref()
6795 .map(language::proto::serialize_transaction);
6796 Ok(proto::OnTypeFormattingResponse { transaction })
6797 }
6798
6799 async fn handle_inlay_hints(
6800 this: ModelHandle<Self>,
6801 envelope: TypedEnvelope<proto::InlayHints>,
6802 _: Arc<Client>,
6803 mut cx: AsyncAppContext,
6804 ) -> Result<proto::InlayHintsResponse> {
6805 let sender_id = envelope.original_sender_id()?;
6806 let buffer = this.update(&mut cx, |this, cx| {
6807 this.opened_buffers
6808 .get(&envelope.payload.buffer_id)
6809 .and_then(|buffer| buffer.upgrade(cx))
6810 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
6811 })?;
6812 let buffer_version = deserialize_version(&envelope.payload.version);
6813
6814 buffer
6815 .update(&mut cx, |buffer, _| {
6816 buffer.wait_for_version(buffer_version.clone())
6817 })
6818 .await
6819 .with_context(|| {
6820 format!(
6821 "waiting for version {:?} for buffer {}",
6822 buffer_version,
6823 buffer.id()
6824 )
6825 })?;
6826
6827 let start = envelope
6828 .payload
6829 .start
6830 .and_then(deserialize_anchor)
6831 .context("missing range start")?;
6832 let end = envelope
6833 .payload
6834 .end
6835 .and_then(deserialize_anchor)
6836 .context("missing range end")?;
6837 let buffer_hints = this
6838 .update(&mut cx, |project, cx| {
6839 project.inlay_hints(buffer, start..end, cx)
6840 })
6841 .await
6842 .context("inlay hints fetch")?;
6843
6844 Ok(this.update(&mut cx, |project, cx| {
6845 InlayHints::response_to_proto(buffer_hints, project, sender_id, &buffer_version, cx)
6846 }))
6847 }
6848
6849 async fn handle_refresh_inlay_hints(
6850 this: ModelHandle<Self>,
6851 _: TypedEnvelope<proto::RefreshInlayHints>,
6852 _: Arc<Client>,
6853 mut cx: AsyncAppContext,
6854 ) -> Result<proto::Ack> {
6855 this.update(&mut cx, |_, cx| {
6856 cx.emit(Event::RefreshInlays);
6857 });
6858 Ok(proto::Ack {})
6859 }
6860
6861 async fn handle_lsp_command<T: LspCommand>(
6862 this: ModelHandle<Self>,
6863 envelope: TypedEnvelope<T::ProtoRequest>,
6864 _: Arc<Client>,
6865 mut cx: AsyncAppContext,
6866 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
6867 where
6868 <T::LspRequest as lsp::request::Request>::Result: Send,
6869 {
6870 let sender_id = envelope.original_sender_id()?;
6871 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
6872 let buffer_handle = this.read_with(&cx, |this, _| {
6873 this.opened_buffers
6874 .get(&buffer_id)
6875 .and_then(|buffer| buffer.upgrade(&cx))
6876 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
6877 })?;
6878 let request = T::from_proto(
6879 envelope.payload,
6880 this.clone(),
6881 buffer_handle.clone(),
6882 cx.clone(),
6883 )
6884 .await?;
6885 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
6886 let response = this
6887 .update(&mut cx, |this, cx| {
6888 this.request_primary_lsp(buffer_handle, request, cx)
6889 })
6890 .await?;
6891 this.update(&mut cx, |this, cx| {
6892 Ok(T::response_to_proto(
6893 response,
6894 this,
6895 sender_id,
6896 &buffer_version,
6897 cx,
6898 ))
6899 })
6900 }
6901
6902 async fn handle_get_project_symbols(
6903 this: ModelHandle<Self>,
6904 envelope: TypedEnvelope<proto::GetProjectSymbols>,
6905 _: Arc<Client>,
6906 mut cx: AsyncAppContext,
6907 ) -> Result<proto::GetProjectSymbolsResponse> {
6908 let symbols = this
6909 .update(&mut cx, |this, cx| {
6910 this.symbols(&envelope.payload.query, cx)
6911 })
6912 .await?;
6913
6914 Ok(proto::GetProjectSymbolsResponse {
6915 symbols: symbols.iter().map(serialize_symbol).collect(),
6916 })
6917 }
6918
6919 async fn handle_search_project(
6920 this: ModelHandle<Self>,
6921 envelope: TypedEnvelope<proto::SearchProject>,
6922 _: Arc<Client>,
6923 mut cx: AsyncAppContext,
6924 ) -> Result<proto::SearchProjectResponse> {
6925 let peer_id = envelope.original_sender_id()?;
6926 let query = SearchQuery::from_proto(envelope.payload)?;
6927 let result = this
6928 .update(&mut cx, |this, cx| this.search(query, cx))
6929 .await?;
6930
6931 this.update(&mut cx, |this, cx| {
6932 let mut locations = Vec::new();
6933 for (buffer, ranges) in result {
6934 for range in ranges {
6935 let start = serialize_anchor(&range.start);
6936 let end = serialize_anchor(&range.end);
6937 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
6938 locations.push(proto::Location {
6939 buffer_id,
6940 start: Some(start),
6941 end: Some(end),
6942 });
6943 }
6944 }
6945 Ok(proto::SearchProjectResponse { locations })
6946 })
6947 }
6948
6949 async fn handle_open_buffer_for_symbol(
6950 this: ModelHandle<Self>,
6951 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
6952 _: Arc<Client>,
6953 mut cx: AsyncAppContext,
6954 ) -> Result<proto::OpenBufferForSymbolResponse> {
6955 let peer_id = envelope.original_sender_id()?;
6956 let symbol = envelope
6957 .payload
6958 .symbol
6959 .ok_or_else(|| anyhow!("invalid symbol"))?;
6960 let symbol = this
6961 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
6962 .await?;
6963 let symbol = this.read_with(&cx, |this, _| {
6964 let signature = this.symbol_signature(&symbol.path);
6965 if signature == symbol.signature {
6966 Ok(symbol)
6967 } else {
6968 Err(anyhow!("invalid symbol signature"))
6969 }
6970 })?;
6971 let buffer = this
6972 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
6973 .await?;
6974
6975 Ok(proto::OpenBufferForSymbolResponse {
6976 buffer_id: this.update(&mut cx, |this, cx| {
6977 this.create_buffer_for_peer(&buffer, peer_id, cx)
6978 }),
6979 })
6980 }
6981
6982 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
6983 let mut hasher = Sha256::new();
6984 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
6985 hasher.update(project_path.path.to_string_lossy().as_bytes());
6986 hasher.update(self.nonce.to_be_bytes());
6987 hasher.finalize().as_slice().try_into().unwrap()
6988 }
6989
6990 async fn handle_open_buffer_by_id(
6991 this: ModelHandle<Self>,
6992 envelope: TypedEnvelope<proto::OpenBufferById>,
6993 _: Arc<Client>,
6994 mut cx: AsyncAppContext,
6995 ) -> Result<proto::OpenBufferResponse> {
6996 let peer_id = envelope.original_sender_id()?;
6997 let buffer = this
6998 .update(&mut cx, |this, cx| {
6999 this.open_buffer_by_id(envelope.payload.id, cx)
7000 })
7001 .await?;
7002 this.update(&mut cx, |this, cx| {
7003 Ok(proto::OpenBufferResponse {
7004 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
7005 })
7006 })
7007 }
7008
7009 async fn handle_open_buffer_by_path(
7010 this: ModelHandle<Self>,
7011 envelope: TypedEnvelope<proto::OpenBufferByPath>,
7012 _: Arc<Client>,
7013 mut cx: AsyncAppContext,
7014 ) -> Result<proto::OpenBufferResponse> {
7015 let peer_id = envelope.original_sender_id()?;
7016 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
7017 let open_buffer = this.update(&mut cx, |this, cx| {
7018 this.open_buffer(
7019 ProjectPath {
7020 worktree_id,
7021 path: PathBuf::from(envelope.payload.path).into(),
7022 },
7023 cx,
7024 )
7025 });
7026
7027 let buffer = open_buffer.await?;
7028 this.update(&mut cx, |this, cx| {
7029 Ok(proto::OpenBufferResponse {
7030 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
7031 })
7032 })
7033 }
7034
7035 fn serialize_project_transaction_for_peer(
7036 &mut self,
7037 project_transaction: ProjectTransaction,
7038 peer_id: proto::PeerId,
7039 cx: &mut AppContext,
7040 ) -> proto::ProjectTransaction {
7041 let mut serialized_transaction = proto::ProjectTransaction {
7042 buffer_ids: Default::default(),
7043 transactions: Default::default(),
7044 };
7045 for (buffer, transaction) in project_transaction.0 {
7046 serialized_transaction
7047 .buffer_ids
7048 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
7049 serialized_transaction
7050 .transactions
7051 .push(language::proto::serialize_transaction(&transaction));
7052 }
7053 serialized_transaction
7054 }
7055
7056 fn deserialize_project_transaction(
7057 &mut self,
7058 message: proto::ProjectTransaction,
7059 push_to_history: bool,
7060 cx: &mut ModelContext<Self>,
7061 ) -> Task<Result<ProjectTransaction>> {
7062 cx.spawn(|this, mut cx| async move {
7063 let mut project_transaction = ProjectTransaction::default();
7064 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
7065 {
7066 let buffer = this
7067 .update(&mut cx, |this, cx| {
7068 this.wait_for_remote_buffer(buffer_id, cx)
7069 })
7070 .await?;
7071 let transaction = language::proto::deserialize_transaction(transaction)?;
7072 project_transaction.0.insert(buffer, transaction);
7073 }
7074
7075 for (buffer, transaction) in &project_transaction.0 {
7076 buffer
7077 .update(&mut cx, |buffer, _| {
7078 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
7079 })
7080 .await?;
7081
7082 if push_to_history {
7083 buffer.update(&mut cx, |buffer, _| {
7084 buffer.push_transaction(transaction.clone(), Instant::now());
7085 });
7086 }
7087 }
7088
7089 Ok(project_transaction)
7090 })
7091 }
7092
7093 fn create_buffer_for_peer(
7094 &mut self,
7095 buffer: &ModelHandle<Buffer>,
7096 peer_id: proto::PeerId,
7097 cx: &mut AppContext,
7098 ) -> u64 {
7099 let buffer_id = buffer.read(cx).remote_id();
7100 if let Some(ProjectClientState::Local { updates_tx, .. }) = &self.client_state {
7101 updates_tx
7102 .unbounded_send(LocalProjectUpdate::CreateBufferForPeer { peer_id, buffer_id })
7103 .ok();
7104 }
7105 buffer_id
7106 }
7107
7108 fn wait_for_remote_buffer(
7109 &mut self,
7110 id: u64,
7111 cx: &mut ModelContext<Self>,
7112 ) -> Task<Result<ModelHandle<Buffer>>> {
7113 let mut opened_buffer_rx = self.opened_buffer.1.clone();
7114
7115 cx.spawn_weak(|this, mut cx| async move {
7116 let buffer = loop {
7117 let Some(this) = this.upgrade(&cx) else {
7118 return Err(anyhow!("project dropped"));
7119 };
7120
7121 let buffer = this.read_with(&cx, |this, cx| {
7122 this.opened_buffers
7123 .get(&id)
7124 .and_then(|buffer| buffer.upgrade(cx))
7125 });
7126
7127 if let Some(buffer) = buffer {
7128 break buffer;
7129 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
7130 return Err(anyhow!("disconnected before buffer {} could be opened", id));
7131 }
7132
7133 this.update(&mut cx, |this, _| {
7134 this.incomplete_remote_buffers.entry(id).or_default();
7135 });
7136 drop(this);
7137
7138 opened_buffer_rx
7139 .next()
7140 .await
7141 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
7142 };
7143
7144 Ok(buffer)
7145 })
7146 }
7147
7148 fn synchronize_remote_buffers(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
7149 let project_id = match self.client_state.as_ref() {
7150 Some(ProjectClientState::Remote {
7151 sharing_has_stopped,
7152 remote_id,
7153 ..
7154 }) => {
7155 if *sharing_has_stopped {
7156 return Task::ready(Err(anyhow!(
7157 "can't synchronize remote buffers on a readonly project"
7158 )));
7159 } else {
7160 *remote_id
7161 }
7162 }
7163 Some(ProjectClientState::Local { .. }) | None => {
7164 return Task::ready(Err(anyhow!(
7165 "can't synchronize remote buffers on a local project"
7166 )))
7167 }
7168 };
7169
7170 let client = self.client.clone();
7171 cx.spawn(|this, cx| async move {
7172 let (buffers, incomplete_buffer_ids) = this.read_with(&cx, |this, cx| {
7173 let buffers = this
7174 .opened_buffers
7175 .iter()
7176 .filter_map(|(id, buffer)| {
7177 let buffer = buffer.upgrade(cx)?;
7178 Some(proto::BufferVersion {
7179 id: *id,
7180 version: language::proto::serialize_version(&buffer.read(cx).version),
7181 })
7182 })
7183 .collect();
7184 let incomplete_buffer_ids = this
7185 .incomplete_remote_buffers
7186 .keys()
7187 .copied()
7188 .collect::<Vec<_>>();
7189
7190 (buffers, incomplete_buffer_ids)
7191 });
7192 let response = client
7193 .request(proto::SynchronizeBuffers {
7194 project_id,
7195 buffers,
7196 })
7197 .await?;
7198
7199 let send_updates_for_buffers = response.buffers.into_iter().map(|buffer| {
7200 let client = client.clone();
7201 let buffer_id = buffer.id;
7202 let remote_version = language::proto::deserialize_version(&buffer.version);
7203 this.read_with(&cx, |this, cx| {
7204 if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
7205 let operations = buffer.read(cx).serialize_ops(Some(remote_version), cx);
7206 cx.background().spawn(async move {
7207 let operations = operations.await;
7208 for chunk in split_operations(operations) {
7209 client
7210 .request(proto::UpdateBuffer {
7211 project_id,
7212 buffer_id,
7213 operations: chunk,
7214 })
7215 .await?;
7216 }
7217 anyhow::Ok(())
7218 })
7219 } else {
7220 Task::ready(Ok(()))
7221 }
7222 })
7223 });
7224
7225 // Any incomplete buffers have open requests waiting. Request that the host sends
7226 // creates these buffers for us again to unblock any waiting futures.
7227 for id in incomplete_buffer_ids {
7228 cx.background()
7229 .spawn(client.request(proto::OpenBufferById { project_id, id }))
7230 .detach();
7231 }
7232
7233 futures::future::join_all(send_updates_for_buffers)
7234 .await
7235 .into_iter()
7236 .collect()
7237 })
7238 }
7239
7240 pub fn worktree_metadata_protos(&self, cx: &AppContext) -> Vec<proto::WorktreeMetadata> {
7241 self.worktrees(cx)
7242 .map(|worktree| {
7243 let worktree = worktree.read(cx);
7244 proto::WorktreeMetadata {
7245 id: worktree.id().to_proto(),
7246 root_name: worktree.root_name().into(),
7247 visible: worktree.is_visible(),
7248 abs_path: worktree.abs_path().to_string_lossy().into(),
7249 }
7250 })
7251 .collect()
7252 }
7253
7254 fn set_worktrees_from_proto(
7255 &mut self,
7256 worktrees: Vec<proto::WorktreeMetadata>,
7257 cx: &mut ModelContext<Project>,
7258 ) -> Result<()> {
7259 let replica_id = self.replica_id();
7260 let remote_id = self.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
7261
7262 let mut old_worktrees_by_id = self
7263 .worktrees
7264 .drain(..)
7265 .filter_map(|worktree| {
7266 let worktree = worktree.upgrade(cx)?;
7267 Some((worktree.read(cx).id(), worktree))
7268 })
7269 .collect::<HashMap<_, _>>();
7270
7271 for worktree in worktrees {
7272 if let Some(old_worktree) =
7273 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
7274 {
7275 self.worktrees.push(WorktreeHandle::Strong(old_worktree));
7276 } else {
7277 let worktree =
7278 Worktree::remote(remote_id, replica_id, worktree, self.client.clone(), cx);
7279 let _ = self.add_worktree(&worktree, cx);
7280 }
7281 }
7282
7283 self.metadata_changed(cx);
7284 for id in old_worktrees_by_id.keys() {
7285 cx.emit(Event::WorktreeRemoved(*id));
7286 }
7287
7288 Ok(())
7289 }
7290
7291 fn set_collaborators_from_proto(
7292 &mut self,
7293 messages: Vec<proto::Collaborator>,
7294 cx: &mut ModelContext<Self>,
7295 ) -> Result<()> {
7296 let mut collaborators = HashMap::default();
7297 for message in messages {
7298 let collaborator = Collaborator::from_proto(message)?;
7299 collaborators.insert(collaborator.peer_id, collaborator);
7300 }
7301 for old_peer_id in self.collaborators.keys() {
7302 if !collaborators.contains_key(old_peer_id) {
7303 cx.emit(Event::CollaboratorLeft(*old_peer_id));
7304 }
7305 }
7306 self.collaborators = collaborators;
7307 Ok(())
7308 }
7309
7310 fn deserialize_symbol(
7311 &self,
7312 serialized_symbol: proto::Symbol,
7313 ) -> impl Future<Output = Result<Symbol>> {
7314 let languages = self.languages.clone();
7315 async move {
7316 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
7317 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
7318 let start = serialized_symbol
7319 .start
7320 .ok_or_else(|| anyhow!("invalid start"))?;
7321 let end = serialized_symbol
7322 .end
7323 .ok_or_else(|| anyhow!("invalid end"))?;
7324 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
7325 let path = ProjectPath {
7326 worktree_id,
7327 path: PathBuf::from(serialized_symbol.path).into(),
7328 };
7329 let language = languages
7330 .language_for_file(&path.path, None)
7331 .await
7332 .log_err();
7333 Ok(Symbol {
7334 language_server_name: LanguageServerName(
7335 serialized_symbol.language_server_name.into(),
7336 ),
7337 source_worktree_id,
7338 path,
7339 label: {
7340 match language {
7341 Some(language) => {
7342 language
7343 .label_for_symbol(&serialized_symbol.name, kind)
7344 .await
7345 }
7346 None => None,
7347 }
7348 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
7349 },
7350
7351 name: serialized_symbol.name,
7352 range: Unclipped(PointUtf16::new(start.row, start.column))
7353 ..Unclipped(PointUtf16::new(end.row, end.column)),
7354 kind,
7355 signature: serialized_symbol
7356 .signature
7357 .try_into()
7358 .map_err(|_| anyhow!("invalid signature"))?,
7359 })
7360 }
7361 }
7362
7363 async fn handle_buffer_saved(
7364 this: ModelHandle<Self>,
7365 envelope: TypedEnvelope<proto::BufferSaved>,
7366 _: Arc<Client>,
7367 mut cx: AsyncAppContext,
7368 ) -> Result<()> {
7369 let fingerprint = deserialize_fingerprint(&envelope.payload.fingerprint)?;
7370 let version = deserialize_version(&envelope.payload.version);
7371 let mtime = envelope
7372 .payload
7373 .mtime
7374 .ok_or_else(|| anyhow!("missing mtime"))?
7375 .into();
7376
7377 this.update(&mut cx, |this, cx| {
7378 let buffer = this
7379 .opened_buffers
7380 .get(&envelope.payload.buffer_id)
7381 .and_then(|buffer| buffer.upgrade(cx))
7382 .or_else(|| {
7383 this.incomplete_remote_buffers
7384 .get(&envelope.payload.buffer_id)
7385 .and_then(|b| b.clone())
7386 });
7387 if let Some(buffer) = buffer {
7388 buffer.update(cx, |buffer, cx| {
7389 buffer.did_save(version, fingerprint, mtime, cx);
7390 });
7391 }
7392 Ok(())
7393 })
7394 }
7395
7396 async fn handle_buffer_reloaded(
7397 this: ModelHandle<Self>,
7398 envelope: TypedEnvelope<proto::BufferReloaded>,
7399 _: Arc<Client>,
7400 mut cx: AsyncAppContext,
7401 ) -> Result<()> {
7402 let payload = envelope.payload;
7403 let version = deserialize_version(&payload.version);
7404 let fingerprint = deserialize_fingerprint(&payload.fingerprint)?;
7405 let line_ending = deserialize_line_ending(
7406 proto::LineEnding::from_i32(payload.line_ending)
7407 .ok_or_else(|| anyhow!("missing line ending"))?,
7408 );
7409 let mtime = payload
7410 .mtime
7411 .ok_or_else(|| anyhow!("missing mtime"))?
7412 .into();
7413 this.update(&mut cx, |this, cx| {
7414 let buffer = this
7415 .opened_buffers
7416 .get(&payload.buffer_id)
7417 .and_then(|buffer| buffer.upgrade(cx))
7418 .or_else(|| {
7419 this.incomplete_remote_buffers
7420 .get(&payload.buffer_id)
7421 .cloned()
7422 .flatten()
7423 });
7424 if let Some(buffer) = buffer {
7425 buffer.update(cx, |buffer, cx| {
7426 buffer.did_reload(version, fingerprint, line_ending, mtime, cx);
7427 });
7428 }
7429 Ok(())
7430 })
7431 }
7432
7433 #[allow(clippy::type_complexity)]
7434 fn edits_from_lsp(
7435 &mut self,
7436 buffer: &ModelHandle<Buffer>,
7437 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
7438 server_id: LanguageServerId,
7439 version: Option<i32>,
7440 cx: &mut ModelContext<Self>,
7441 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
7442 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, server_id, version, cx);
7443 cx.background().spawn(async move {
7444 let snapshot = snapshot?;
7445 let mut lsp_edits = lsp_edits
7446 .into_iter()
7447 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
7448 .collect::<Vec<_>>();
7449 lsp_edits.sort_by_key(|(range, _)| range.start);
7450
7451 let mut lsp_edits = lsp_edits.into_iter().peekable();
7452 let mut edits = Vec::new();
7453 while let Some((range, mut new_text)) = lsp_edits.next() {
7454 // Clip invalid ranges provided by the language server.
7455 let mut range = snapshot.clip_point_utf16(range.start, Bias::Left)
7456 ..snapshot.clip_point_utf16(range.end, Bias::Left);
7457
7458 // Combine any LSP edits that are adjacent.
7459 //
7460 // Also, combine LSP edits that are separated from each other by only
7461 // a newline. This is important because for some code actions,
7462 // Rust-analyzer rewrites the entire buffer via a series of edits that
7463 // are separated by unchanged newline characters.
7464 //
7465 // In order for the diffing logic below to work properly, any edits that
7466 // cancel each other out must be combined into one.
7467 while let Some((next_range, next_text)) = lsp_edits.peek() {
7468 if next_range.start.0 > range.end {
7469 if next_range.start.0.row > range.end.row + 1
7470 || next_range.start.0.column > 0
7471 || snapshot.clip_point_utf16(
7472 Unclipped(PointUtf16::new(range.end.row, u32::MAX)),
7473 Bias::Left,
7474 ) > range.end
7475 {
7476 break;
7477 }
7478 new_text.push('\n');
7479 }
7480 range.end = snapshot.clip_point_utf16(next_range.end, Bias::Left);
7481 new_text.push_str(next_text);
7482 lsp_edits.next();
7483 }
7484
7485 // For multiline edits, perform a diff of the old and new text so that
7486 // we can identify the changes more precisely, preserving the locations
7487 // of any anchors positioned in the unchanged regions.
7488 if range.end.row > range.start.row {
7489 let mut offset = range.start.to_offset(&snapshot);
7490 let old_text = snapshot.text_for_range(range).collect::<String>();
7491
7492 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
7493 let mut moved_since_edit = true;
7494 for change in diff.iter_all_changes() {
7495 let tag = change.tag();
7496 let value = change.value();
7497 match tag {
7498 ChangeTag::Equal => {
7499 offset += value.len();
7500 moved_since_edit = true;
7501 }
7502 ChangeTag::Delete => {
7503 let start = snapshot.anchor_after(offset);
7504 let end = snapshot.anchor_before(offset + value.len());
7505 if moved_since_edit {
7506 edits.push((start..end, String::new()));
7507 } else {
7508 edits.last_mut().unwrap().0.end = end;
7509 }
7510 offset += value.len();
7511 moved_since_edit = false;
7512 }
7513 ChangeTag::Insert => {
7514 if moved_since_edit {
7515 let anchor = snapshot.anchor_after(offset);
7516 edits.push((anchor..anchor, value.to_string()));
7517 } else {
7518 edits.last_mut().unwrap().1.push_str(value);
7519 }
7520 moved_since_edit = false;
7521 }
7522 }
7523 }
7524 } else if range.end == range.start {
7525 let anchor = snapshot.anchor_after(range.start);
7526 edits.push((anchor..anchor, new_text));
7527 } else {
7528 let edit_start = snapshot.anchor_after(range.start);
7529 let edit_end = snapshot.anchor_before(range.end);
7530 edits.push((edit_start..edit_end, new_text));
7531 }
7532 }
7533
7534 Ok(edits)
7535 })
7536 }
7537
7538 fn buffer_snapshot_for_lsp_version(
7539 &mut self,
7540 buffer: &ModelHandle<Buffer>,
7541 server_id: LanguageServerId,
7542 version: Option<i32>,
7543 cx: &AppContext,
7544 ) -> Result<TextBufferSnapshot> {
7545 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
7546
7547 if let Some(version) = version {
7548 let buffer_id = buffer.read(cx).remote_id();
7549 let snapshots = self
7550 .buffer_snapshots
7551 .get_mut(&buffer_id)
7552 .and_then(|m| m.get_mut(&server_id))
7553 .ok_or_else(|| {
7554 anyhow!("no snapshots found for buffer {buffer_id} and server {server_id}")
7555 })?;
7556
7557 let found_snapshot = snapshots
7558 .binary_search_by_key(&version, |e| e.version)
7559 .map(|ix| snapshots[ix].snapshot.clone())
7560 .map_err(|_| {
7561 anyhow!("snapshot not found for buffer {buffer_id} server {server_id} at version {version}")
7562 })?;
7563
7564 snapshots.retain(|snapshot| snapshot.version + OLD_VERSIONS_TO_RETAIN >= version);
7565 Ok(found_snapshot)
7566 } else {
7567 Ok((buffer.read(cx)).text_snapshot())
7568 }
7569 }
7570
7571 pub fn language_servers(
7572 &self,
7573 ) -> impl '_ + Iterator<Item = (LanguageServerId, LanguageServerName, WorktreeId)> {
7574 self.language_server_ids
7575 .iter()
7576 .map(|((worktree_id, server_name), server_id)| {
7577 (*server_id, server_name.clone(), *worktree_id)
7578 })
7579 }
7580
7581 pub fn language_server_for_id(&self, id: LanguageServerId) -> Option<Arc<LanguageServer>> {
7582 if let LanguageServerState::Running { server, .. } = self.language_servers.get(&id)? {
7583 Some(server.clone())
7584 } else {
7585 None
7586 }
7587 }
7588
7589 pub fn language_servers_for_buffer(
7590 &self,
7591 buffer: &Buffer,
7592 cx: &AppContext,
7593 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
7594 self.language_server_ids_for_buffer(buffer, cx)
7595 .into_iter()
7596 .filter_map(|server_id| match self.language_servers.get(&server_id)? {
7597 LanguageServerState::Running {
7598 adapter, server, ..
7599 } => Some((adapter, server)),
7600 _ => None,
7601 })
7602 }
7603
7604 fn primary_language_server_for_buffer(
7605 &self,
7606 buffer: &Buffer,
7607 cx: &AppContext,
7608 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
7609 self.language_servers_for_buffer(buffer, cx).next()
7610 }
7611
7612 fn language_server_for_buffer(
7613 &self,
7614 buffer: &Buffer,
7615 server_id: LanguageServerId,
7616 cx: &AppContext,
7617 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
7618 self.language_servers_for_buffer(buffer, cx)
7619 .find(|(_, s)| s.server_id() == server_id)
7620 }
7621
7622 fn language_server_ids_for_buffer(
7623 &self,
7624 buffer: &Buffer,
7625 cx: &AppContext,
7626 ) -> Vec<LanguageServerId> {
7627 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
7628 let worktree_id = file.worktree_id(cx);
7629 language
7630 .lsp_adapters()
7631 .iter()
7632 .flat_map(|adapter| {
7633 let key = (worktree_id, adapter.name.clone());
7634 self.language_server_ids.get(&key).copied()
7635 })
7636 .collect()
7637 } else {
7638 Vec::new()
7639 }
7640 }
7641}
7642
7643fn glob_literal_prefix<'a>(glob: &'a str) -> &'a str {
7644 let mut literal_end = 0;
7645 for (i, part) in glob.split(path::MAIN_SEPARATOR).enumerate() {
7646 if part.contains(&['*', '?', '{', '}']) {
7647 break;
7648 } else {
7649 if i > 0 {
7650 // Acount for separator prior to this part
7651 literal_end += path::MAIN_SEPARATOR.len_utf8();
7652 }
7653 literal_end += part.len();
7654 }
7655 }
7656 &glob[..literal_end]
7657}
7658
7659impl WorktreeHandle {
7660 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
7661 match self {
7662 WorktreeHandle::Strong(handle) => Some(handle.clone()),
7663 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
7664 }
7665 }
7666
7667 pub fn handle_id(&self) -> usize {
7668 match self {
7669 WorktreeHandle::Strong(handle) => handle.id(),
7670 WorktreeHandle::Weak(handle) => handle.id(),
7671 }
7672 }
7673}
7674
7675impl OpenBuffer {
7676 pub fn upgrade(&self, cx: &impl BorrowAppContext) -> Option<ModelHandle<Buffer>> {
7677 match self {
7678 OpenBuffer::Strong(handle) => Some(handle.clone()),
7679 OpenBuffer::Weak(handle) => handle.upgrade(cx),
7680 OpenBuffer::Operations(_) => None,
7681 }
7682 }
7683}
7684
7685pub struct PathMatchCandidateSet {
7686 pub snapshot: Snapshot,
7687 pub include_ignored: bool,
7688 pub include_root_name: bool,
7689}
7690
7691impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
7692 type Candidates = PathMatchCandidateSetIter<'a>;
7693
7694 fn id(&self) -> usize {
7695 self.snapshot.id().to_usize()
7696 }
7697
7698 fn len(&self) -> usize {
7699 if self.include_ignored {
7700 self.snapshot.file_count()
7701 } else {
7702 self.snapshot.visible_file_count()
7703 }
7704 }
7705
7706 fn prefix(&self) -> Arc<str> {
7707 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
7708 self.snapshot.root_name().into()
7709 } else if self.include_root_name {
7710 format!("{}/", self.snapshot.root_name()).into()
7711 } else {
7712 "".into()
7713 }
7714 }
7715
7716 fn candidates(&'a self, start: usize) -> Self::Candidates {
7717 PathMatchCandidateSetIter {
7718 traversal: self.snapshot.files(self.include_ignored, start),
7719 }
7720 }
7721}
7722
7723pub struct PathMatchCandidateSetIter<'a> {
7724 traversal: Traversal<'a>,
7725}
7726
7727impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
7728 type Item = fuzzy::PathMatchCandidate<'a>;
7729
7730 fn next(&mut self) -> Option<Self::Item> {
7731 self.traversal.next().map(|entry| {
7732 if let EntryKind::File(char_bag) = entry.kind {
7733 fuzzy::PathMatchCandidate {
7734 path: &entry.path,
7735 char_bag,
7736 }
7737 } else {
7738 unreachable!()
7739 }
7740 })
7741 }
7742}
7743
7744impl Entity for Project {
7745 type Event = Event;
7746
7747 fn release(&mut self, cx: &mut gpui::AppContext) {
7748 match &self.client_state {
7749 Some(ProjectClientState::Local { .. }) => {
7750 let _ = self.unshare_internal(cx);
7751 }
7752 Some(ProjectClientState::Remote { remote_id, .. }) => {
7753 let _ = self.client.send(proto::LeaveProject {
7754 project_id: *remote_id,
7755 });
7756 self.disconnected_from_host_internal(cx);
7757 }
7758 _ => {}
7759 }
7760 }
7761
7762 fn app_will_quit(
7763 &mut self,
7764 _: &mut AppContext,
7765 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
7766 let shutdown_futures = self
7767 .language_servers
7768 .drain()
7769 .map(|(_, server_state)| async {
7770 use LanguageServerState::*;
7771 match server_state {
7772 Running { server, .. } => server.shutdown()?.await,
7773 Starting(task) => task.await?.shutdown()?.await,
7774 }
7775 })
7776 .collect::<Vec<_>>();
7777
7778 Some(
7779 async move {
7780 futures::future::join_all(shutdown_futures).await;
7781 }
7782 .boxed(),
7783 )
7784 }
7785}
7786
7787impl Collaborator {
7788 fn from_proto(message: proto::Collaborator) -> Result<Self> {
7789 Ok(Self {
7790 peer_id: message.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?,
7791 replica_id: message.replica_id as ReplicaId,
7792 })
7793 }
7794}
7795
7796impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
7797 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
7798 Self {
7799 worktree_id,
7800 path: path.as_ref().into(),
7801 }
7802 }
7803}
7804
7805impl ProjectLspAdapterDelegate {
7806 fn new(project: &Project, cx: &ModelContext<Project>) -> Arc<Self> {
7807 Arc::new(Self {
7808 project: cx.handle(),
7809 http_client: project.client.http_client(),
7810 })
7811 }
7812}
7813
7814impl LspAdapterDelegate for ProjectLspAdapterDelegate {
7815 fn show_notification(&self, message: &str, cx: &mut AppContext) {
7816 self.project
7817 .update(cx, |_, cx| cx.emit(Event::Notification(message.to_owned())));
7818 }
7819
7820 fn http_client(&self) -> Arc<dyn HttpClient> {
7821 self.http_client.clone()
7822 }
7823}
7824
7825fn split_operations(
7826 mut operations: Vec<proto::Operation>,
7827) -> impl Iterator<Item = Vec<proto::Operation>> {
7828 #[cfg(any(test, feature = "test-support"))]
7829 const CHUNK_SIZE: usize = 5;
7830
7831 #[cfg(not(any(test, feature = "test-support")))]
7832 const CHUNK_SIZE: usize = 100;
7833
7834 let mut done = false;
7835 std::iter::from_fn(move || {
7836 if done {
7837 return None;
7838 }
7839
7840 let operations = operations
7841 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
7842 .collect::<Vec<_>>();
7843 if operations.is_empty() {
7844 done = true;
7845 }
7846 Some(operations)
7847 })
7848}
7849
7850fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
7851 proto::Symbol {
7852 language_server_name: symbol.language_server_name.0.to_string(),
7853 source_worktree_id: symbol.source_worktree_id.to_proto(),
7854 worktree_id: symbol.path.worktree_id.to_proto(),
7855 path: symbol.path.path.to_string_lossy().to_string(),
7856 name: symbol.name.clone(),
7857 kind: unsafe { mem::transmute(symbol.kind) },
7858 start: Some(proto::PointUtf16 {
7859 row: symbol.range.start.0.row,
7860 column: symbol.range.start.0.column,
7861 }),
7862 end: Some(proto::PointUtf16 {
7863 row: symbol.range.end.0.row,
7864 column: symbol.range.end.0.column,
7865 }),
7866 signature: symbol.signature.to_vec(),
7867 }
7868}
7869
7870fn relativize_path(base: &Path, path: &Path) -> PathBuf {
7871 let mut path_components = path.components();
7872 let mut base_components = base.components();
7873 let mut components: Vec<Component> = Vec::new();
7874 loop {
7875 match (path_components.next(), base_components.next()) {
7876 (None, None) => break,
7877 (Some(a), None) => {
7878 components.push(a);
7879 components.extend(path_components.by_ref());
7880 break;
7881 }
7882 (None, _) => components.push(Component::ParentDir),
7883 (Some(a), Some(b)) if components.is_empty() && a == b => (),
7884 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
7885 (Some(a), Some(_)) => {
7886 components.push(Component::ParentDir);
7887 for _ in base_components {
7888 components.push(Component::ParentDir);
7889 }
7890 components.push(a);
7891 components.extend(path_components.by_ref());
7892 break;
7893 }
7894 }
7895 }
7896 components.iter().map(|c| c.as_os_str()).collect()
7897}
7898
7899impl Item for Buffer {
7900 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
7901 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
7902 }
7903
7904 fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
7905 File::from_dyn(self.file()).map(|file| ProjectPath {
7906 worktree_id: file.worktree_id(cx),
7907 path: file.path().clone(),
7908 })
7909 }
7910}
7911
7912async fn wait_for_loading_buffer(
7913 mut receiver: postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
7914) -> Result<ModelHandle<Buffer>, Arc<anyhow::Error>> {
7915 loop {
7916 if let Some(result) = receiver.borrow().as_ref() {
7917 match result {
7918 Ok(buffer) => return Ok(buffer.to_owned()),
7919 Err(e) => return Err(e.to_owned()),
7920 }
7921 }
7922 receiver.next().await;
7923 }
7924}