1use crate::buffer_store::BufferStore;
2use crate::worktree_store::{WorktreeStore, WorktreeStoreEvent};
3use crate::{Project, ProjectPath};
4use anyhow::Context as _;
5use client::ProjectId;
6use futures::channel::{mpsc, oneshot};
7use futures::StreamExt as _;
8use git::{
9 repository::{GitRepository, RepoPath},
10 status::{GitSummary, TrackedSummary},
11};
12use gpui::{
13 App, AppContext, Context, Entity, EventEmitter, SharedString, Subscription, Task, WeakEntity,
14};
15use language::{Buffer, LanguageRegistry};
16use rpc::{proto, AnyProtoClient};
17use settings::WorktreeId;
18use std::path::Path;
19use std::sync::Arc;
20use text::BufferId;
21use util::{maybe, ResultExt};
22use worktree::{ProjectEntryId, RepositoryEntry, StatusEntry};
23
24pub struct GitState {
25 project_id: Option<ProjectId>,
26 client: Option<AnyProtoClient>,
27 repositories: Vec<Entity<Repository>>,
28 active_index: Option<usize>,
29 update_sender: mpsc::UnboundedSender<(Message, oneshot::Sender<anyhow::Result<()>>)>,
30 _subscription: Subscription,
31}
32
33pub struct Repository {
34 commit_message_buffer: Option<Entity<Buffer>>,
35 git_state: WeakEntity<GitState>,
36 pub worktree_id: WorktreeId,
37 pub repository_entry: RepositoryEntry,
38 pub git_repo: GitRepo,
39 update_sender: mpsc::UnboundedSender<(Message, oneshot::Sender<anyhow::Result<()>>)>,
40}
41
42#[derive(Clone)]
43pub enum GitRepo {
44 Local(Arc<dyn GitRepository>),
45 Remote {
46 project_id: ProjectId,
47 client: AnyProtoClient,
48 worktree_id: WorktreeId,
49 work_directory_id: ProjectEntryId,
50 },
51}
52
53enum Message {
54 Commit {
55 git_repo: GitRepo,
56 message: SharedString,
57 name_and_email: Option<(SharedString, SharedString)>,
58 },
59 Stage(GitRepo, Vec<RepoPath>),
60 Unstage(GitRepo, Vec<RepoPath>),
61}
62
63pub enum GitEvent {
64 ActiveRepositoryChanged,
65 FileSystemUpdated,
66 GitStateUpdated,
67}
68
69impl EventEmitter<GitEvent> for GitState {}
70
71impl GitState {
72 pub fn new(
73 worktree_store: &Entity<WorktreeStore>,
74 client: Option<AnyProtoClient>,
75 project_id: Option<ProjectId>,
76 cx: &mut Context<'_, Self>,
77 ) -> Self {
78 let update_sender = Self::spawn_git_worker(cx);
79 let _subscription = cx.subscribe(worktree_store, Self::on_worktree_store_event);
80
81 GitState {
82 project_id,
83 client,
84 repositories: Vec::new(),
85 active_index: None,
86 update_sender,
87 _subscription,
88 }
89 }
90
91 pub fn active_repository(&self) -> Option<Entity<Repository>> {
92 self.active_index
93 .map(|index| self.repositories[index].clone())
94 }
95
96 fn on_worktree_store_event(
97 &mut self,
98 worktree_store: Entity<WorktreeStore>,
99 event: &WorktreeStoreEvent,
100 cx: &mut Context<'_, Self>,
101 ) {
102 // TODO inspect the event
103
104 let mut new_repositories = Vec::new();
105 let mut new_active_index = None;
106 let this = cx.weak_entity();
107 let client = self.client.clone();
108 let project_id = self.project_id;
109
110 worktree_store.update(cx, |worktree_store, cx| {
111 for worktree in worktree_store.worktrees() {
112 worktree.update(cx, |worktree, cx| {
113 let snapshot = worktree.snapshot();
114 for repo in snapshot.repositories().iter() {
115 let git_repo = worktree
116 .as_local()
117 .and_then(|local_worktree| local_worktree.get_local_repo(repo))
118 .map(|local_repo| local_repo.repo().clone())
119 .map(GitRepo::Local)
120 .or_else(|| {
121 let client = client.clone()?;
122 let project_id = project_id?;
123 Some(GitRepo::Remote {
124 project_id,
125 client,
126 worktree_id: worktree.id(),
127 work_directory_id: repo.work_directory_id(),
128 })
129 });
130 let Some(git_repo) = git_repo else {
131 continue;
132 };
133 let worktree_id = worktree.id();
134 let existing =
135 self.repositories
136 .iter()
137 .enumerate()
138 .find(|(_, existing_handle)| {
139 existing_handle.read(cx).id()
140 == (worktree_id, repo.work_directory_id())
141 });
142 let handle = if let Some((index, handle)) = existing {
143 if self.active_index == Some(index) {
144 new_active_index = Some(new_repositories.len());
145 }
146 // Update the statuses but keep everything else.
147 let existing_handle = handle.clone();
148 existing_handle.update(cx, |existing_handle, _| {
149 existing_handle.repository_entry = repo.clone();
150 });
151 existing_handle
152 } else {
153 cx.new(|_| Repository {
154 git_state: this.clone(),
155 worktree_id,
156 repository_entry: repo.clone(),
157 git_repo,
158 update_sender: self.update_sender.clone(),
159 commit_message_buffer: None,
160 })
161 };
162 new_repositories.push(handle);
163 }
164 })
165 }
166 });
167
168 if new_active_index == None && new_repositories.len() > 0 {
169 new_active_index = Some(0);
170 }
171
172 self.repositories = new_repositories;
173 self.active_index = new_active_index;
174
175 match event {
176 WorktreeStoreEvent::WorktreeUpdatedGitRepositories(_) => {
177 cx.emit(GitEvent::GitStateUpdated);
178 }
179 _ => {
180 cx.emit(GitEvent::FileSystemUpdated);
181 }
182 }
183 }
184
185 pub fn all_repositories(&self) -> Vec<Entity<Repository>> {
186 self.repositories.clone()
187 }
188
189 fn spawn_git_worker(
190 cx: &mut Context<'_, GitState>,
191 ) -> mpsc::UnboundedSender<(Message, oneshot::Sender<anyhow::Result<()>>)> {
192 let (update_sender, mut update_receiver) =
193 mpsc::unbounded::<(Message, oneshot::Sender<anyhow::Result<()>>)>();
194 cx.spawn(|_, cx| async move {
195 while let Some((msg, respond)) = update_receiver.next().await {
196 let result = cx
197 .background_executor()
198 .spawn(Self::process_git_msg(msg))
199 .await;
200 respond.send(result).ok();
201 }
202 })
203 .detach();
204 update_sender
205 }
206
207 async fn process_git_msg(msg: Message) -> Result<(), anyhow::Error> {
208 match msg {
209 Message::Stage(repo, paths) => {
210 match repo {
211 GitRepo::Local(repo) => repo.stage_paths(&paths)?,
212 GitRepo::Remote {
213 project_id,
214 client,
215 worktree_id,
216 work_directory_id,
217 } => {
218 client
219 .request(proto::Stage {
220 project_id: project_id.0,
221 worktree_id: worktree_id.to_proto(),
222 work_directory_id: work_directory_id.to_proto(),
223 paths: paths
224 .into_iter()
225 .map(|repo_path| repo_path.to_proto())
226 .collect(),
227 })
228 .await
229 .context("sending stage request")?;
230 }
231 }
232 Ok(())
233 }
234 Message::Unstage(repo, paths) => {
235 match repo {
236 GitRepo::Local(repo) => repo.unstage_paths(&paths)?,
237 GitRepo::Remote {
238 project_id,
239 client,
240 worktree_id,
241 work_directory_id,
242 } => {
243 client
244 .request(proto::Unstage {
245 project_id: project_id.0,
246 worktree_id: worktree_id.to_proto(),
247 work_directory_id: work_directory_id.to_proto(),
248 paths: paths
249 .into_iter()
250 .map(|repo_path| repo_path.to_proto())
251 .collect(),
252 })
253 .await
254 .context("sending unstage request")?;
255 }
256 }
257 Ok(())
258 }
259 Message::Commit {
260 git_repo,
261 message,
262 name_and_email,
263 } => {
264 match git_repo {
265 GitRepo::Local(repo) => repo.commit(
266 message.as_ref(),
267 name_and_email
268 .as_ref()
269 .map(|(name, email)| (name.as_ref(), email.as_ref())),
270 )?,
271 GitRepo::Remote {
272 project_id,
273 client,
274 worktree_id,
275 work_directory_id,
276 } => {
277 let (name, email) = name_and_email.unzip();
278 client
279 .request(proto::Commit {
280 project_id: project_id.0,
281 worktree_id: worktree_id.to_proto(),
282 work_directory_id: work_directory_id.to_proto(),
283 message: String::from(message),
284 name: name.map(String::from),
285 email: email.map(String::from),
286 })
287 .await
288 .context("sending commit request")?;
289 }
290 }
291 Ok(())
292 }
293 }
294 }
295}
296
297impl Repository {
298 fn id(&self) -> (WorktreeId, ProjectEntryId) {
299 (self.worktree_id, self.repository_entry.work_directory_id())
300 }
301
302 pub fn display_name(&self, project: &Project, cx: &App) -> SharedString {
303 maybe!({
304 let path = self.repo_path_to_project_path(&"".into())?;
305 Some(
306 project
307 .absolute_path(&path, cx)?
308 .file_name()?
309 .to_string_lossy()
310 .to_string()
311 .into(),
312 )
313 })
314 .unwrap_or("".into())
315 }
316
317 pub fn activate(&self, cx: &mut App) {
318 let Some(git_state) = self.git_state.upgrade() else {
319 return;
320 };
321 git_state.update(cx, |git_state, cx| {
322 let Some((index, _)) = git_state
323 .repositories
324 .iter()
325 .enumerate()
326 .find(|(_, handle)| handle.read(cx).id() == self.id())
327 else {
328 return;
329 };
330 git_state.active_index = Some(index);
331 cx.emit(GitEvent::ActiveRepositoryChanged);
332 });
333 }
334
335 pub fn status(&self) -> impl '_ + Iterator<Item = StatusEntry> {
336 self.repository_entry.status()
337 }
338
339 pub fn has_conflict(&self, path: &RepoPath) -> bool {
340 self.repository_entry
341 .current_merge_conflicts
342 .contains(&path)
343 }
344
345 pub fn repo_path_to_project_path(&self, path: &RepoPath) -> Option<ProjectPath> {
346 let path = self.repository_entry.unrelativize(path)?;
347 Some((self.worktree_id, path).into())
348 }
349
350 pub fn project_path_to_repo_path(&self, path: &ProjectPath) -> Option<RepoPath> {
351 self.worktree_id_path_to_repo_path(path.worktree_id, &path.path)
352 }
353
354 pub fn worktree_id_path_to_repo_path(
355 &self,
356 worktree_id: WorktreeId,
357 path: &Path,
358 ) -> Option<RepoPath> {
359 if worktree_id != self.worktree_id {
360 return None;
361 }
362 self.repository_entry.relativize(path).log_err()
363 }
364
365 pub fn open_commit_buffer(
366 &mut self,
367 languages: Option<Arc<LanguageRegistry>>,
368 buffer_store: Entity<BufferStore>,
369 cx: &mut Context<Self>,
370 ) -> Task<anyhow::Result<Entity<Buffer>>> {
371 if let Some(buffer) = self.commit_message_buffer.clone() {
372 return Task::ready(Ok(buffer));
373 }
374
375 if let GitRepo::Remote {
376 project_id,
377 client,
378 worktree_id,
379 work_directory_id,
380 } = self.git_repo.clone()
381 {
382 let client = client.clone();
383 cx.spawn(|repository, mut cx| async move {
384 let request = client.request(proto::OpenCommitMessageBuffer {
385 project_id: project_id.0,
386 worktree_id: worktree_id.to_proto(),
387 work_directory_id: work_directory_id.to_proto(),
388 });
389 let response = request.await.context("requesting to open commit buffer")?;
390 let buffer_id = BufferId::new(response.buffer_id)?;
391 let buffer = buffer_store
392 .update(&mut cx, |buffer_store, cx| {
393 buffer_store.wait_for_remote_buffer(buffer_id, cx)
394 })?
395 .await?;
396 if let Some(language_registry) = languages {
397 let git_commit_language =
398 language_registry.language_for_name("Git Commit").await?;
399 buffer.update(&mut cx, |buffer, cx| {
400 buffer.set_language(Some(git_commit_language), cx);
401 })?;
402 }
403 repository.update(&mut cx, |repository, _| {
404 repository.commit_message_buffer = Some(buffer.clone());
405 })?;
406 Ok(buffer)
407 })
408 } else {
409 self.open_local_commit_buffer(languages, buffer_store, cx)
410 }
411 }
412
413 fn open_local_commit_buffer(
414 &mut self,
415 language_registry: Option<Arc<LanguageRegistry>>,
416 buffer_store: Entity<BufferStore>,
417 cx: &mut Context<Self>,
418 ) -> Task<anyhow::Result<Entity<Buffer>>> {
419 cx.spawn(|repository, mut cx| async move {
420 let buffer = buffer_store
421 .update(&mut cx, |buffer_store, cx| buffer_store.create_buffer(cx))?
422 .await?;
423
424 if let Some(language_registry) = language_registry {
425 let git_commit_language = language_registry.language_for_name("Git Commit").await?;
426 buffer.update(&mut cx, |buffer, cx| {
427 buffer.set_language(Some(git_commit_language), cx);
428 })?;
429 }
430
431 repository.update(&mut cx, |repository, _| {
432 repository.commit_message_buffer = Some(buffer.clone());
433 })?;
434 Ok(buffer)
435 })
436 }
437
438 pub fn stage_entries(&self, entries: Vec<RepoPath>) -> oneshot::Receiver<anyhow::Result<()>> {
439 let (result_tx, result_rx) = futures::channel::oneshot::channel();
440 if entries.is_empty() {
441 result_tx.send(Ok(())).ok();
442 return result_rx;
443 }
444 self.update_sender
445 .unbounded_send((Message::Stage(self.git_repo.clone(), entries), result_tx))
446 .ok();
447 result_rx
448 }
449
450 pub fn unstage_entries(&self, entries: Vec<RepoPath>) -> oneshot::Receiver<anyhow::Result<()>> {
451 let (result_tx, result_rx) = futures::channel::oneshot::channel();
452 if entries.is_empty() {
453 result_tx.send(Ok(())).ok();
454 return result_rx;
455 }
456 self.update_sender
457 .unbounded_send((Message::Unstage(self.git_repo.clone(), entries), result_tx))
458 .ok();
459 result_rx
460 }
461
462 pub fn stage_all(&self) -> oneshot::Receiver<anyhow::Result<()>> {
463 let to_stage = self
464 .repository_entry
465 .status()
466 .filter(|entry| !entry.status.is_staged().unwrap_or(false))
467 .map(|entry| entry.repo_path.clone())
468 .collect();
469 self.stage_entries(to_stage)
470 }
471
472 pub fn unstage_all(&self) -> oneshot::Receiver<anyhow::Result<()>> {
473 let to_unstage = self
474 .repository_entry
475 .status()
476 .filter(|entry| entry.status.is_staged().unwrap_or(true))
477 .map(|entry| entry.repo_path.clone())
478 .collect();
479 self.unstage_entries(to_unstage)
480 }
481
482 /// Get a count of all entries in the active repository, including
483 /// untracked files.
484 pub fn entry_count(&self) -> usize {
485 self.repository_entry.status_len()
486 }
487
488 fn have_changes(&self) -> bool {
489 self.repository_entry.status_summary() != GitSummary::UNCHANGED
490 }
491
492 fn have_staged_changes(&self) -> bool {
493 self.repository_entry.status_summary().index != TrackedSummary::UNCHANGED
494 }
495
496 pub fn can_commit(&self, commit_all: bool) -> bool {
497 return self.have_changes() && (commit_all || self.have_staged_changes());
498 }
499
500 pub fn commit(
501 &self,
502 message: SharedString,
503 name_and_email: Option<(SharedString, SharedString)>,
504 ) -> oneshot::Receiver<anyhow::Result<()>> {
505 let (result_tx, result_rx) = futures::channel::oneshot::channel();
506 self.update_sender
507 .unbounded_send((
508 Message::Commit {
509 git_repo: self.git_repo.clone(),
510 message,
511 name_and_email,
512 },
513 result_tx,
514 ))
515 .ok();
516 result_rx
517 }
518}