1use anyhow::Context as _;
2use fuzzy::StringMatchCandidate;
3
4use collections::HashSet;
5use git::repository::Branch;
6use gpui::{
7 App, Context, DismissEvent, Entity, EventEmitter, FocusHandle, Focusable, InteractiveElement,
8 IntoElement, Modifiers, ModifiersChangedEvent, ParentElement, Render, SharedString, Styled,
9 Subscription, Task, Window, rems,
10};
11use picker::{Picker, PickerDelegate, PickerEditorPosition};
12use project::git_store::Repository;
13use std::sync::Arc;
14use time::OffsetDateTime;
15use time_format::format_local_timestamp;
16use ui::{HighlightedLabel, ListItem, ListItemSpacing, Tooltip, prelude::*};
17use util::ResultExt;
18use workspace::notifications::DetachAndPromptErr;
19use workspace::{ModalView, Workspace};
20
21pub fn register(workspace: &mut Workspace) {
22 workspace.register_action(open);
23 workspace.register_action(switch);
24 workspace.register_action(checkout_branch);
25}
26
27pub fn checkout_branch(
28 workspace: &mut Workspace,
29 _: &zed_actions::git::CheckoutBranch,
30 window: &mut Window,
31 cx: &mut Context<Workspace>,
32) {
33 open(workspace, &zed_actions::git::Branch, window, cx);
34}
35
36pub fn switch(
37 workspace: &mut Workspace,
38 _: &zed_actions::git::Switch,
39 window: &mut Window,
40 cx: &mut Context<Workspace>,
41) {
42 open(workspace, &zed_actions::git::Branch, window, cx);
43}
44
45pub fn open(
46 workspace: &mut Workspace,
47 _: &zed_actions::git::Branch,
48 window: &mut Window,
49 cx: &mut Context<Workspace>,
50) {
51 let repository = workspace.project().read(cx).active_repository(cx).clone();
52 let style = BranchListStyle::Modal;
53 workspace.toggle_modal(window, cx, |window, cx| {
54 BranchList::new(repository, style, rems(34.), window, cx)
55 })
56}
57
58pub fn popover(
59 repository: Option<Entity<Repository>>,
60 window: &mut Window,
61 cx: &mut App,
62) -> Entity<BranchList> {
63 cx.new(|cx| {
64 let list = BranchList::new(repository, BranchListStyle::Popover, rems(20.), window, cx);
65 list.focus_handle(cx).focus(window);
66 list
67 })
68}
69
70#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
71enum BranchListStyle {
72 Modal,
73 Popover,
74}
75
76pub struct BranchList {
77 width: Rems,
78 pub picker: Entity<Picker<BranchListDelegate>>,
79 _subscription: Subscription,
80}
81
82impl BranchList {
83 fn new(
84 repository: Option<Entity<Repository>>,
85 style: BranchListStyle,
86 width: Rems,
87 window: &mut Window,
88 cx: &mut Context<Self>,
89 ) -> Self {
90 let all_branches_request = repository
91 .clone()
92 .map(|repository| repository.update(cx, |repository, _| repository.branches()));
93 let default_branch_request = repository
94 .clone()
95 .map(|repository| repository.update(cx, |repository, _| repository.default_branch()));
96
97 cx.spawn_in(window, async move |this, cx| {
98 let mut all_branches = all_branches_request
99 .context("No active repository")?
100 .await??;
101 let default_branch = default_branch_request
102 .context("No active repository")?
103 .await
104 .map(Result::ok)
105 .ok()
106 .flatten()
107 .flatten();
108
109 let all_branches = cx
110 .background_spawn(async move {
111 let remote_upstreams: HashSet<_> = all_branches
112 .iter()
113 .filter_map(|branch| {
114 branch
115 .upstream
116 .as_ref()
117 .filter(|upstream| upstream.is_remote())
118 .map(|upstream| upstream.ref_name.clone())
119 })
120 .collect();
121
122 all_branches.retain(|branch| !remote_upstreams.contains(&branch.ref_name));
123
124 all_branches.sort_by_key(|branch| {
125 branch
126 .most_recent_commit
127 .as_ref()
128 .map(|commit| 0 - commit.commit_timestamp)
129 });
130
131 all_branches
132 })
133 .await;
134
135 this.update_in(cx, |this, window, cx| {
136 this.picker.update(cx, |picker, cx| {
137 picker.delegate.default_branch = default_branch;
138 picker.delegate.all_branches = Some(all_branches);
139 picker.refresh(window, cx);
140 })
141 })?;
142
143 anyhow::Ok(())
144 })
145 .detach_and_log_err(cx);
146
147 let delegate = BranchListDelegate::new(repository.clone(), style);
148 let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));
149
150 let _subscription = cx.subscribe(&picker, |_, _, _, cx| {
151 cx.emit(DismissEvent);
152 });
153
154 Self {
155 picker,
156 width,
157 _subscription,
158 }
159 }
160
161 fn handle_modifiers_changed(
162 &mut self,
163 ev: &ModifiersChangedEvent,
164 _: &mut Window,
165 cx: &mut Context<Self>,
166 ) {
167 self.picker
168 .update(cx, |picker, _| picker.delegate.modifiers = ev.modifiers)
169 }
170}
171impl ModalView for BranchList {}
172impl EventEmitter<DismissEvent> for BranchList {}
173
174impl Focusable for BranchList {
175 fn focus_handle(&self, cx: &App) -> FocusHandle {
176 self.picker.focus_handle(cx)
177 }
178}
179
180impl Render for BranchList {
181 fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
182 v_flex()
183 .key_context("GitBranchSelector")
184 .w(self.width)
185 .on_modifiers_changed(cx.listener(Self::handle_modifiers_changed))
186 .child(self.picker.clone())
187 .on_mouse_down_out({
188 cx.listener(move |this, _, window, cx| {
189 this.picker.update(cx, |this, cx| {
190 this.cancel(&Default::default(), window, cx);
191 })
192 })
193 })
194 }
195}
196
197#[derive(Debug, Clone)]
198struct BranchEntry {
199 branch: Branch,
200 positions: Vec<usize>,
201 is_new: bool,
202}
203
204pub struct BranchListDelegate {
205 matches: Vec<BranchEntry>,
206 all_branches: Option<Vec<Branch>>,
207 default_branch: Option<SharedString>,
208 repo: Option<Entity<Repository>>,
209 style: BranchListStyle,
210 selected_index: usize,
211 last_query: String,
212 modifiers: Modifiers,
213}
214
215impl BranchListDelegate {
216 fn new(repo: Option<Entity<Repository>>, style: BranchListStyle) -> Self {
217 Self {
218 matches: vec![],
219 repo,
220 style,
221 all_branches: None,
222 default_branch: None,
223 selected_index: 0,
224 last_query: Default::default(),
225 modifiers: Default::default(),
226 }
227 }
228
229 fn create_branch(
230 &self,
231 from_branch: Option<SharedString>,
232 new_branch_name: SharedString,
233 window: &mut Window,
234 cx: &mut Context<Picker<Self>>,
235 ) {
236 let Some(repo) = self.repo.clone() else {
237 return;
238 };
239 let new_branch_name = new_branch_name.to_string().replace(' ', "-");
240 cx.spawn(async move |_, cx| {
241 if let Some(based_branch) = from_branch {
242 match repo.update(cx, |repo, _| repo.change_branch(based_branch.to_string()))?.await {
243 Ok(Ok(_)) => {}
244 Ok(Err(error)) => return Err(error),
245 Err(_) => return Err(anyhow::anyhow!("Operation was canceled")),
246 }
247 }
248
249 match repo.update(cx, |repo, _| repo.create_branch(new_branch_name.clone()))?.await {
250 Ok(Ok(_)) => {}
251 Ok(Err(error)) => return Err(error),
252 Err(_) => return Err(anyhow::anyhow!("Operation was canceled")),
253 }
254
255 match repo.update(cx, |repo, _| repo.change_branch(new_branch_name))?.await {
256 Ok(Ok(_)) => {}
257 Ok(Err(error)) => return Err(error),
258 Err(_) => return Err(anyhow::anyhow!("Operation was canceled")),
259 }
260
261 Ok(())
262 })
263 .detach_and_prompt_err("Failed to create branch", window, cx, |_, _, _| None);
264 }
265}
266
267impl PickerDelegate for BranchListDelegate {
268 type ListItem = ListItem;
269
270 fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
271 "Select branch…".into()
272 }
273
274 fn editor_position(&self) -> PickerEditorPosition {
275 match self.style {
276 BranchListStyle::Modal => PickerEditorPosition::Start,
277 BranchListStyle::Popover => PickerEditorPosition::End,
278 }
279 }
280
281 fn match_count(&self) -> usize {
282 self.matches.len()
283 }
284
285 fn selected_index(&self) -> usize {
286 self.selected_index
287 }
288
289 fn set_selected_index(
290 &mut self,
291 ix: usize,
292 _window: &mut Window,
293 _: &mut Context<Picker<Self>>,
294 ) {
295 self.selected_index = ix;
296 }
297
298 fn update_matches(
299 &mut self,
300 query: String,
301 window: &mut Window,
302 cx: &mut Context<Picker<Self>>,
303 ) -> Task<()> {
304 let Some(all_branches) = self.all_branches.clone() else {
305 return Task::ready(());
306 };
307
308 const RECENT_BRANCHES_COUNT: usize = 10;
309 cx.spawn_in(window, async move |picker, cx| {
310 let mut matches: Vec<BranchEntry> = if query.is_empty() {
311 all_branches
312 .into_iter()
313 .filter(|branch| !branch.is_remote())
314 .take(RECENT_BRANCHES_COUNT)
315 .map(|branch| BranchEntry {
316 branch,
317 positions: Vec::new(),
318 is_new: false,
319 })
320 .collect()
321 } else {
322 let candidates = all_branches
323 .iter()
324 .enumerate()
325 .map(|(ix, branch)| StringMatchCandidate::new(ix, branch.name()))
326 .collect::<Vec<StringMatchCandidate>>();
327 fuzzy::match_strings(
328 &candidates,
329 &query,
330 true,
331 true,
332 10000,
333 &Default::default(),
334 cx.background_executor().clone(),
335 )
336 .await
337 .into_iter()
338 .map(|candidate| BranchEntry {
339 branch: all_branches[candidate.candidate_id].clone(),
340 positions: candidate.positions,
341 is_new: false,
342 })
343 .collect()
344 };
345 picker
346 .update(cx, |picker, _| {
347 #[allow(clippy::nonminimal_bool)]
348 if !query.is_empty()
349 && !matches
350 .first()
351 .is_some_and(|entry| entry.branch.name() == query)
352 {
353 let query = query.replace(' ', "-");
354 matches.push(BranchEntry {
355 branch: Branch {
356 ref_name: format!("refs/heads/{query}").into(),
357 is_head: false,
358 upstream: None,
359 most_recent_commit: None,
360 },
361 positions: Vec::new(),
362 is_new: true,
363 })
364 }
365 let delegate = &mut picker.delegate;
366 delegate.matches = matches;
367 if delegate.matches.is_empty() {
368 delegate.selected_index = 0;
369 } else {
370 delegate.selected_index =
371 core::cmp::min(delegate.selected_index, delegate.matches.len() - 1);
372 }
373 delegate.last_query = query;
374 })
375 .log_err();
376 })
377 }
378
379 fn confirm(&mut self, secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
380 let Some(entry) = self.matches.get(self.selected_index()) else {
381 return;
382 };
383 if entry.is_new {
384 let from_branch = if secondary {
385 self.default_branch.clone()
386 } else {
387 None
388 };
389 self.create_branch(
390 from_branch,
391 entry.branch.name().to_owned().into(),
392 window,
393 cx,
394 );
395 return;
396 }
397
398 let current_branch = self.repo.as_ref().map(|repo| {
399 repo.read_with(cx, |repo, _| {
400 repo.branch.as_ref().map(|branch| branch.ref_name.clone())
401 })
402 });
403
404 if current_branch
405 .flatten()
406 .is_some_and(|current_branch| current_branch == entry.branch.ref_name)
407 {
408 cx.emit(DismissEvent);
409 return;
410 }
411
412 cx.spawn_in(window, {
413 let branch = entry.branch.clone();
414 async move |picker, cx| {
415 let branch_name = branch.name().to_string();
416
417 let branch_change_task = picker.update(cx, |this, cx| {
418 let repo = this
419 .delegate
420 .repo
421 .as_ref()
422 .context("No active repository")?
423 .clone();
424
425 let mut cx = cx.to_async();
426
427 anyhow::Ok(async move {
428 repo.update(&mut cx, |repo, _| repo.change_branch(branch_name))?
429 .await?
430 })
431 })??;
432
433 match branch_change_task.await {
434 Ok(_) => {
435 let _ = picker.update(cx, |_, cx| {
436 cx.emit(DismissEvent);
437 anyhow::Ok(())
438 })?;
439 }
440 Err(error) => {
441 let _ = picker.update(cx, |_, cx| {
442 cx.emit(DismissEvent);
443 anyhow::Ok(())
444 })?;
445 return Err(error);
446 }
447 }
448
449 anyhow::Ok(())
450 }
451 })
452 .detach_and_prompt_err("Failed to switch branch", window, cx, |_, _, _| None);
453 }
454
455 fn dismissed(&mut self, _: &mut Window, cx: &mut Context<Picker<Self>>) {
456 cx.emit(DismissEvent);
457 }
458
459 fn render_match(
460 &self,
461 ix: usize,
462 selected: bool,
463 _window: &mut Window,
464 cx: &mut Context<Picker<Self>>,
465 ) -> Option<Self::ListItem> {
466 let entry = &self.matches[ix];
467
468 let (commit_time, subject) = entry
469 .branch
470 .most_recent_commit
471 .as_ref()
472 .map(|commit| {
473 let subject = commit.subject.clone();
474 let commit_time = OffsetDateTime::from_unix_timestamp(commit.commit_timestamp)
475 .unwrap_or_else(|_| OffsetDateTime::now_utc());
476 let formatted_time = format_local_timestamp(
477 commit_time,
478 OffsetDateTime::now_utc(),
479 time_format::TimestampFormat::Relative,
480 );
481 (Some(formatted_time), Some(subject))
482 })
483 .unwrap_or_else(|| (None, None));
484
485 let icon = if let Some(default_branch) = self.default_branch.clone()
486 && entry.is_new
487 {
488 Some(
489 IconButton::new("branch-from-default", IconName::GitBranchAlt)
490 .on_click(cx.listener(move |this, _, window, cx| {
491 this.delegate.set_selected_index(ix, window, cx);
492 this.delegate.confirm(true, window, cx);
493 }))
494 .tooltip(move |window, cx| {
495 Tooltip::for_action(
496 format!("Create branch based off default: {default_branch}"),
497 &menu::SecondaryConfirm,
498 window,
499 cx,
500 )
501 }),
502 )
503 } else {
504 None
505 };
506
507 let branch_name = if entry.is_new {
508 h_flex()
509 .gap_1()
510 .child(
511 Icon::new(IconName::Plus)
512 .size(IconSize::Small)
513 .color(Color::Muted),
514 )
515 .child(
516 Label::new(format!("Create branch \"{}\"…", entry.branch.name()))
517 .single_line()
518 .truncate(),
519 )
520 .into_any_element()
521 } else {
522 HighlightedLabel::new(entry.branch.name().to_owned(), entry.positions.clone())
523 .truncate()
524 .into_any_element()
525 };
526
527 Some(
528 ListItem::new(SharedString::from(format!("vcs-menu-{ix}")))
529 .inset(true)
530 .spacing(ListItemSpacing::Sparse)
531 .toggle_state(selected)
532 .child(
533 v_flex()
534 .w_full()
535 .overflow_hidden()
536 .child(
537 h_flex()
538 .gap_6()
539 .justify_between()
540 .overflow_x_hidden()
541 .child(branch_name)
542 .when_some(commit_time, |label, commit_time| {
543 label.child(
544 Label::new(commit_time)
545 .size(LabelSize::Small)
546 .color(Color::Muted)
547 .into_element(),
548 )
549 }),
550 )
551 .when(self.style == BranchListStyle::Modal, |el| {
552 el.child(div().max_w_96().child({
553 let message = if entry.is_new {
554 if let Some(current_branch) =
555 self.repo.as_ref().and_then(|repo| {
556 repo.read(cx).branch.as_ref().map(|b| b.name())
557 })
558 {
559 format!("based off {}", current_branch)
560 } else {
561 "based off the current branch".to_string()
562 }
563 } else {
564 subject.unwrap_or("no commits found".into()).to_string()
565 };
566 Label::new(message)
567 .size(LabelSize::Small)
568 .truncate()
569 .color(Color::Muted)
570 }))
571 }),
572 )
573 .end_slot::<IconButton>(icon),
574 )
575 }
576
577 fn no_matches_text(&self, _window: &mut Window, _cx: &mut App) -> Option<SharedString> {
578 None
579 }
580}