1use crate::{
2 example::{Example, ExampleState},
3 git,
4 headless::EpAppState,
5 progress::{ExampleProgress, InfoStyle, Step, StepProgress},
6};
7use anyhow::{Context as _, Result};
8use edit_prediction::{
9 EditPredictionStore,
10 cursor_excerpt::compute_excerpt_ranges,
11 udiff::{OpenedBuffers, refresh_worktree_entries, strip_diff_path_prefix},
12};
13use futures::AsyncWriteExt as _;
14use gpui::{AsyncApp, Entity};
15use language::{Anchor, Buffer, LanguageNotFound, ToOffset, ToPoint};
16use project::{Project, ProjectPath, buffer_store::BufferStoreEvent};
17use std::{fs, path::PathBuf, sync::Arc};
18use zeta_prompt::ZetaPromptInput;
19
20pub async fn run_load_project(
21 example: &mut Example,
22 app_state: Arc<EpAppState>,
23 example_progress: &ExampleProgress,
24 mut cx: AsyncApp,
25) -> Result<()> {
26 if example.state.is_some() {
27 return Ok(());
28 }
29
30 let progress = example_progress.start(Step::LoadProject);
31
32 let project = setup_project(example, &app_state, &progress, &mut cx).await?;
33
34 progress.set_substatus("applying edit history");
35 let open_buffers = apply_edit_history(example, &project, &mut cx).await?;
36
37 let ep_store = cx
38 .update(|cx| EditPredictionStore::try_global(cx))
39 .context("EditPredictionStore not initialized")?;
40
41 let recent_paths: Vec<ProjectPath> = open_buffers
42 .buffers()
43 .filter_map(|buffer| {
44 buffer.read_with(&cx, |buffer, cx| {
45 buffer
46 .file()
47 .map(|file| ProjectPath::from_file(file.as_ref(), cx))
48 })
49 })
50 .collect();
51
52 ep_store.update(&mut cx, |store, cx| {
53 store.set_recent_paths_for_project(&project, recent_paths, cx);
54 });
55
56 progress.set_substatus("resolving cursor");
57 let (buffer, cursor_position) =
58 cursor_position(example, &project, &open_buffers, &mut cx).await?;
59 buffer
60 .read_with(&cx, |buffer, _| buffer.parsing_idle())
61 .await;
62
63 let events: Vec<Arc<zeta_prompt::Event>> = ep_store.update(&mut cx, |store, cx| {
64 store
65 .edit_history_for_project(&project, cx)
66 .into_iter()
67 .map(|e| e.event)
68 .collect()
69 });
70
71 let existing_related_files = example
72 .prompt_inputs
73 .take()
74 .map(|inputs| inputs.related_files)
75 .unwrap_or_default();
76
77 let (prompt_inputs, language_name) = buffer.read_with(&cx, |buffer, _cx| {
78 let snapshot = buffer.snapshot();
79 let cursor_point = cursor_position.to_point(&snapshot);
80 let cursor_offset = cursor_position.to_offset(&snapshot);
81 let language_name = buffer
82 .language()
83 .map(|l| l.name().to_string())
84 .unwrap_or_else(|| "Unknown".to_string());
85
86 let (full_context_point_range, full_context_offset_range, excerpt_ranges) =
87 compute_excerpt_ranges(cursor_point, &snapshot);
88
89 let cursor_excerpt: Arc<str> = buffer
90 .text_for_range(full_context_offset_range.clone())
91 .collect::<String>()
92 .into();
93 let cursor_offset_in_excerpt = cursor_offset - full_context_offset_range.start;
94 let excerpt_start_row = Some(full_context_point_range.start.row);
95
96 (
97 ZetaPromptInput {
98 cursor_path: example.spec.cursor_path.clone(),
99 cursor_excerpt,
100 cursor_offset_in_excerpt,
101 excerpt_start_row,
102 events,
103 related_files: existing_related_files,
104 excerpt_ranges,
105 in_open_source_repo: false,
106 can_collect_data: false,
107 experiment: None,
108 },
109 language_name,
110 )
111 });
112
113 progress.set_info(language_name, InfoStyle::Normal);
114
115 example.prompt_inputs = Some(prompt_inputs);
116 example.state = Some(ExampleState {
117 buffer,
118 project,
119 cursor_position,
120 _open_buffers: open_buffers,
121 });
122 Ok(())
123}
124
125async fn cursor_position(
126 example: &Example,
127 project: &Entity<Project>,
128 open_buffers: &OpenedBuffers,
129 cx: &mut AsyncApp,
130) -> Result<(Entity<Buffer>, Anchor)> {
131 let language_registry = project.read_with(cx, |project, _| project.languages().clone());
132 let result = language_registry
133 .load_language_for_file_path(&example.spec.cursor_path)
134 .await;
135
136 if let Err(error) = result
137 && !error.is::<LanguageNotFound>()
138 {
139 return Err(error);
140 }
141
142 let cursor_path_str = example.spec.cursor_path.to_string_lossy();
143 // Also try cursor path with first component stripped - old examples may have
144 // paths like "zed/crates/foo.rs" instead of "crates/foo.rs".
145 let cursor_path_without_prefix: PathBuf =
146 example.spec.cursor_path.components().skip(1).collect();
147 let cursor_path_without_prefix_str = cursor_path_without_prefix.to_string_lossy();
148
149 // We try open_buffers first because the file might be new and not saved to disk
150 let cursor_buffer = if let Some(buffer) = open_buffers.get(cursor_path_str.as_ref()) {
151 buffer.clone()
152 } else if let Some(buffer) = open_buffers.get(cursor_path_without_prefix_str.as_ref()) {
153 buffer.clone()
154 } else {
155 // Since the worktree scanner is disabled, manually refresh entries for the cursor path.
156 if let Some(worktree) = project.read_with(cx, |project, cx| project.worktrees(cx).next()) {
157 refresh_worktree_entries(&worktree, [&*example.spec.cursor_path], cx).await?;
158 }
159
160 let cursor_path = project
161 .read_with(cx, |project, cx| {
162 project
163 .find_project_path(&example.spec.cursor_path, cx)
164 .or_else(|| project.find_project_path(&cursor_path_without_prefix, cx))
165 })
166 .with_context(|| {
167 format!(
168 "failed to find cursor path {}",
169 example.spec.cursor_path.display()
170 )
171 })?;
172
173 project
174 .update(cx, |project, cx| project.open_buffer(cursor_path, cx))
175 .await?
176 };
177
178 let (cursor_excerpt, cursor_offset_within_excerpt) = example.spec.cursor_excerpt()?;
179
180 let excerpt_offset = cursor_buffer.read_with(&*cx, |buffer, _cx| {
181 let text = buffer.text();
182
183 let mut matches = text.match_indices(&cursor_excerpt);
184 let (excerpt_offset, _) = matches.next().with_context(|| {
185 format!("Cursor excerpt did not exist in buffer:\n\n{cursor_excerpt}\n",)
186 })?;
187 anyhow::ensure!(
188 matches.next().is_none(),
189 "More than one cursor position match found",
190 );
191 Ok(excerpt_offset)
192 })?;
193
194 let cursor_offset = excerpt_offset + cursor_offset_within_excerpt;
195 let cursor_anchor =
196 cursor_buffer.read_with(&*cx, |buffer, _| buffer.anchor_after(cursor_offset));
197
198 Ok((cursor_buffer, cursor_anchor))
199}
200
201async fn setup_project(
202 example: &mut Example,
203 app_state: &Arc<EpAppState>,
204 step_progress: &StepProgress,
205 cx: &mut AsyncApp,
206) -> Result<Entity<Project>> {
207 let ep_store = cx
208 .update(|cx| EditPredictionStore::try_global(cx))
209 .context("Store should be initialized at init")?;
210
211 let worktree_path = setup_worktree(example, step_progress).await?;
212
213 let project = cx.update(|cx| {
214 Project::local(
215 app_state.client.clone(),
216 app_state.node_runtime.clone(),
217 app_state.user_store.clone(),
218 app_state.languages.clone(),
219 app_state.fs.clone(),
220 None,
221 project::LocalProjectFlags {
222 init_worktree_trust: false,
223 watch_global_configs: false,
224 },
225 cx,
226 )
227 });
228
229 project
230 .update(cx, |project, cx| {
231 project.disable_worktree_scanner(cx);
232 project.create_worktree(&worktree_path, true, cx)
233 })
234 .await?;
235
236 let buffer_store = project.read_with(cx, |project, _| project.buffer_store().clone());
237 cx.subscribe(&buffer_store, {
238 let project = project.downgrade();
239 let ep_store = ep_store.downgrade();
240 move |_, event, cx| match event {
241 BufferStoreEvent::BufferAdded(buffer) => {
242 let Some(project) = project.upgrade() else {
243 return;
244 };
245 ep_store
246 .update(cx, |store, cx| store.register_buffer(&buffer, &project, cx))
247 .ok();
248 }
249 _ => {}
250 }
251 })
252 .detach();
253
254 Ok(project)
255}
256
257async fn setup_worktree(example: &Example, step_progress: &StepProgress) -> Result<PathBuf> {
258 let repo_name = example.repo_name().context("failed to get repo name")?;
259 let repo_dir = git::repo_path_for_url(&example.spec.repository_url)?;
260 let worktree_path = repo_name.worktree_path();
261 let repo_lock = git::lock_repo(&repo_dir).await;
262
263 // Clean up any stale git lock files from previous crashed runs.
264 // Safe-ish since we have our own lock.
265 // WARNING: Can corrupt worktrees if multiple processes of the CLI are running.
266 let worktree_git_dir = repo_dir
267 .join(".git/worktrees")
268 .join(repo_name.name.as_ref());
269 for lock_file in &["index.lock", "HEAD.lock", "config.lock"] {
270 let worktree_lock_path = worktree_git_dir.join(lock_file);
271 let repo_lock_path = repo_dir.join(".git").join(lock_file);
272 if worktree_lock_path.exists() {
273 fs::remove_file(&worktree_lock_path).ok();
274 }
275 if repo_lock_path.exists() {
276 fs::remove_file(&repo_lock_path).ok();
277 }
278 }
279
280 let mut git_repo_exists = false;
281 if repo_dir.is_dir() {
282 if git::run_git(&repo_dir, &["remote", "get-url", "origin"])
283 .await
284 .map_or(false, |origin| origin.trim() == example.spec.repository_url)
285 {
286 git_repo_exists = true;
287 } else {
288 fs::remove_dir_all(&repo_dir).ok();
289 }
290 }
291
292 if !git_repo_exists {
293 step_progress.set_substatus(format!("cloning {}", repo_name.name));
294 fs::create_dir_all(&repo_dir)?;
295 git::run_git(&repo_dir, &["init"]).await?;
296 git::run_git(
297 &repo_dir,
298 &["remote", "add", "origin", &example.spec.repository_url],
299 )
300 .await?;
301 }
302
303 // Resolve the example to a revision, fetching it if needed.
304 step_progress.set_substatus("fetching");
305 let revision = git::fetch_if_needed(&repo_dir, &example.spec.revision).await?;
306
307 // Clean up any stale worktree registrations from previous crashed runs.
308 git::run_git(&repo_dir, &["worktree", "prune"]).await.ok();
309
310 // Create the worktree for this example if needed.
311 step_progress.set_substatus("preparing worktree");
312
313 // Check if worktree exists and is valid (not just a directory from a crashed run).
314 let worktree_valid = worktree_path.is_dir()
315 && git::run_git(&worktree_path, &["rev-parse", "--git-dir"])
316 .await
317 .is_ok();
318
319 if worktree_valid {
320 git::run_git(&worktree_path, &["clean", "--force", "-d"]).await?;
321 git::run_git(&worktree_path, &["reset", "--hard", "HEAD"]).await?;
322 git::run_git(&worktree_path, &["checkout", revision.as_str()]).await?;
323 } else {
324 let worktree_path_string = worktree_path.to_string_lossy();
325
326 // Clean up invalid worktree directory and registration if they exist.
327 if worktree_path.exists() {
328 fs::remove_dir_all(&worktree_path).ok();
329 }
330 git::run_git(
331 &repo_dir,
332 &["worktree", "remove", "--force", &worktree_path_string],
333 )
334 .await
335 .ok();
336
337 let branch_name = example.spec.filename();
338 git::run_git(
339 &repo_dir,
340 &["branch", "-f", &branch_name, revision.as_str()],
341 )
342 .await?;
343 git::run_git(
344 &repo_dir,
345 &["worktree", "add", "-f", &worktree_path_string, &branch_name],
346 )
347 .await?;
348 }
349 drop(repo_lock);
350
351 if !example.spec.uncommitted_diff.is_empty() {
352 step_progress.set_substatus("applying diff");
353
354 // old examples had full paths in the uncommitted diff.
355 let uncommitted_diff =
356 strip_diff_path_prefix(&example.spec.uncommitted_diff, &repo_name.name);
357
358 let mut apply_process = smol::process::Command::new("git")
359 .current_dir(&worktree_path)
360 .args(&["apply", "-"])
361 .stdin(std::process::Stdio::piped())
362 .spawn()?;
363
364 let mut stdin = apply_process.stdin.take().context("Failed to get stdin")?;
365 stdin.write_all(uncommitted_diff.as_bytes()).await?;
366 stdin.close().await?;
367 drop(stdin);
368
369 let apply_result = apply_process.output().await?;
370 anyhow::ensure!(
371 apply_result.status.success(),
372 "Failed to apply uncommitted diff patch with status: {}\nstderr:\n{}\nstdout:\n{}",
373 apply_result.status,
374 String::from_utf8_lossy(&apply_result.stderr),
375 String::from_utf8_lossy(&apply_result.stdout),
376 );
377 }
378
379 step_progress.clear_substatus();
380 Ok(worktree_path)
381}
382
383async fn apply_edit_history(
384 example: &Example,
385 project: &Entity<Project>,
386 cx: &mut AsyncApp,
387) -> Result<OpenedBuffers> {
388 edit_prediction::udiff::apply_diff(&example.spec.edit_history, project, cx).await
389}