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 let editable_range_in_excerpt = excerpt_ranges.editable_350.clone();
97
98 (
99 ZetaPromptInput {
100 cursor_path: example.spec.cursor_path.clone(),
101 cursor_excerpt,
102 editable_range_in_excerpt,
103 cursor_offset_in_excerpt,
104 excerpt_start_row,
105 events,
106 related_files: existing_related_files,
107 excerpt_ranges: Some(excerpt_ranges),
108 preferred_model: None,
109 in_open_source_repo: false,
110 can_collect_data: false,
111 },
112 language_name,
113 )
114 });
115
116 progress.set_info(language_name, InfoStyle::Normal);
117
118 example.prompt_inputs = Some(prompt_inputs);
119 example.state = Some(ExampleState {
120 buffer,
121 project,
122 cursor_position,
123 _open_buffers: open_buffers,
124 });
125 Ok(())
126}
127
128async fn cursor_position(
129 example: &Example,
130 project: &Entity<Project>,
131 open_buffers: &OpenedBuffers,
132 cx: &mut AsyncApp,
133) -> Result<(Entity<Buffer>, Anchor)> {
134 let language_registry = project.read_with(cx, |project, _| project.languages().clone());
135 let result = language_registry
136 .load_language_for_file_path(&example.spec.cursor_path)
137 .await;
138
139 if let Err(error) = result
140 && !error.is::<LanguageNotFound>()
141 {
142 return Err(error);
143 }
144
145 let cursor_path_str = example.spec.cursor_path.to_string_lossy();
146 // Also try cursor path with first component stripped - old examples may have
147 // paths like "zed/crates/foo.rs" instead of "crates/foo.rs".
148 let cursor_path_without_prefix: PathBuf =
149 example.spec.cursor_path.components().skip(1).collect();
150 let cursor_path_without_prefix_str = cursor_path_without_prefix.to_string_lossy();
151
152 // We try open_buffers first because the file might be new and not saved to disk
153 let cursor_buffer = if let Some(buffer) = open_buffers.get(cursor_path_str.as_ref()) {
154 buffer.clone()
155 } else if let Some(buffer) = open_buffers.get(cursor_path_without_prefix_str.as_ref()) {
156 buffer.clone()
157 } else {
158 // Since the worktree scanner is disabled, manually refresh entries for the cursor path.
159 if let Some(worktree) = project.read_with(cx, |project, cx| project.worktrees(cx).next()) {
160 refresh_worktree_entries(&worktree, [&*example.spec.cursor_path], cx).await?;
161 }
162
163 let cursor_path = project
164 .read_with(cx, |project, cx| {
165 project
166 .find_project_path(&example.spec.cursor_path, cx)
167 .or_else(|| project.find_project_path(&cursor_path_without_prefix, cx))
168 })
169 .with_context(|| {
170 format!(
171 "failed to find cursor path {}",
172 example.spec.cursor_path.display()
173 )
174 })?;
175
176 project
177 .update(cx, |project, cx| project.open_buffer(cursor_path, cx))
178 .await?
179 };
180
181 let (cursor_excerpt, cursor_offset_within_excerpt) = example.spec.cursor_excerpt()?;
182
183 let excerpt_offset = cursor_buffer.read_with(&*cx, |buffer, _cx| {
184 let text = buffer.text();
185
186 let mut matches = text.match_indices(&cursor_excerpt);
187 let (excerpt_offset, _) = matches.next().with_context(|| {
188 format!("Cursor excerpt did not exist in buffer:\n\n{cursor_excerpt}\n",)
189 })?;
190 anyhow::ensure!(
191 matches.next().is_none(),
192 "More than one cursor position match found",
193 );
194 Ok(excerpt_offset)
195 })?;
196
197 let cursor_offset = excerpt_offset + cursor_offset_within_excerpt;
198 let cursor_anchor =
199 cursor_buffer.read_with(&*cx, |buffer, _| buffer.anchor_after(cursor_offset));
200
201 Ok((cursor_buffer, cursor_anchor))
202}
203
204async fn setup_project(
205 example: &mut Example,
206 app_state: &Arc<EpAppState>,
207 step_progress: &StepProgress,
208 cx: &mut AsyncApp,
209) -> Result<Entity<Project>> {
210 let ep_store = cx
211 .update(|cx| EditPredictionStore::try_global(cx))
212 .context("Store should be initialized at init")?;
213
214 let worktree_path = setup_worktree(example, step_progress).await?;
215
216 let project = cx.update(|cx| {
217 Project::local(
218 app_state.client.clone(),
219 app_state.node_runtime.clone(),
220 app_state.user_store.clone(),
221 app_state.languages.clone(),
222 app_state.fs.clone(),
223 None,
224 project::LocalProjectFlags {
225 init_worktree_trust: false,
226 watch_global_configs: false,
227 },
228 cx,
229 )
230 });
231
232 project
233 .update(cx, |project, cx| {
234 project.disable_worktree_scanner(cx);
235 project.create_worktree(&worktree_path, true, cx)
236 })
237 .await?;
238
239 let buffer_store = project.read_with(cx, |project, _| project.buffer_store().clone());
240 cx.subscribe(&buffer_store, {
241 let project = project.downgrade();
242 let ep_store = ep_store.downgrade();
243 move |_, event, cx| match event {
244 BufferStoreEvent::BufferAdded(buffer) => {
245 let Some(project) = project.upgrade() else {
246 return;
247 };
248 ep_store
249 .update(cx, |store, cx| store.register_buffer(&buffer, &project, cx))
250 .ok();
251 }
252 _ => {}
253 }
254 })
255 .detach();
256
257 Ok(project)
258}
259
260async fn setup_worktree(example: &Example, step_progress: &StepProgress) -> Result<PathBuf> {
261 let repo_name = example.repo_name().context("failed to get repo name")?;
262 let repo_dir = git::repo_path_for_url(&example.spec.repository_url)?;
263 let worktree_path = repo_name.worktree_path();
264 let repo_lock = git::lock_repo(&repo_dir).await;
265
266 // Clean up any stale git lock files from previous crashed runs.
267 // Safe-ish since we have our own lock.
268 // WARNING: Can corrupt worktrees if multiple processes of the CLI are running.
269 let worktree_git_dir = repo_dir
270 .join(".git/worktrees")
271 .join(repo_name.name.as_ref());
272 for lock_file in &["index.lock", "HEAD.lock", "config.lock"] {
273 let worktree_lock_path = worktree_git_dir.join(lock_file);
274 let repo_lock_path = repo_dir.join(".git").join(lock_file);
275 if worktree_lock_path.exists() {
276 fs::remove_file(&worktree_lock_path).ok();
277 }
278 if repo_lock_path.exists() {
279 fs::remove_file(&repo_lock_path).ok();
280 }
281 }
282
283 let mut git_repo_exists = false;
284 if repo_dir.is_dir() {
285 if git::run_git(&repo_dir, &["remote", "get-url", "origin"])
286 .await
287 .map_or(false, |origin| origin.trim() == example.spec.repository_url)
288 {
289 git_repo_exists = true;
290 } else {
291 fs::remove_dir_all(&repo_dir).ok();
292 }
293 }
294
295 if !git_repo_exists {
296 step_progress.set_substatus(format!("cloning {}", repo_name.name));
297 fs::create_dir_all(&repo_dir)?;
298 git::run_git(&repo_dir, &["init"]).await?;
299 git::run_git(
300 &repo_dir,
301 &["remote", "add", "origin", &example.spec.repository_url],
302 )
303 .await?;
304 }
305
306 // Resolve the example to a revision, fetching it if needed.
307 step_progress.set_substatus("fetching");
308 let revision = git::fetch_if_needed(&repo_dir, &example.spec.revision).await?;
309
310 // Clean up any stale worktree registrations from previous crashed runs.
311 git::run_git(&repo_dir, &["worktree", "prune"]).await.ok();
312
313 // Create the worktree for this example if needed.
314 step_progress.set_substatus("preparing worktree");
315
316 // Check if worktree exists and is valid (not just a directory from a crashed run).
317 let worktree_valid = worktree_path.is_dir()
318 && git::run_git(&worktree_path, &["rev-parse", "--git-dir"])
319 .await
320 .is_ok();
321
322 if worktree_valid {
323 git::run_git(&worktree_path, &["clean", "--force", "-d"]).await?;
324 git::run_git(&worktree_path, &["reset", "--hard", "HEAD"]).await?;
325 git::run_git(&worktree_path, &["checkout", revision.as_str()]).await?;
326 } else {
327 let worktree_path_string = worktree_path.to_string_lossy();
328
329 // Clean up invalid worktree directory and registration if they exist.
330 if worktree_path.exists() {
331 fs::remove_dir_all(&worktree_path).ok();
332 }
333 git::run_git(
334 &repo_dir,
335 &["worktree", "remove", "--force", &worktree_path_string],
336 )
337 .await
338 .ok();
339
340 let branch_name = example.spec.filename();
341 git::run_git(
342 &repo_dir,
343 &["branch", "-f", &branch_name, revision.as_str()],
344 )
345 .await?;
346 git::run_git(
347 &repo_dir,
348 &["worktree", "add", "-f", &worktree_path_string, &branch_name],
349 )
350 .await?;
351 }
352 drop(repo_lock);
353
354 if !example.spec.uncommitted_diff.is_empty() {
355 step_progress.set_substatus("applying diff");
356
357 // old examples had full paths in the uncommitted diff.
358 let uncommitted_diff =
359 strip_diff_path_prefix(&example.spec.uncommitted_diff, &repo_name.name);
360
361 let mut apply_process = smol::process::Command::new("git")
362 .current_dir(&worktree_path)
363 .args(&["apply", "-"])
364 .stdin(std::process::Stdio::piped())
365 .spawn()?;
366
367 let mut stdin = apply_process.stdin.take().context("Failed to get stdin")?;
368 stdin.write_all(uncommitted_diff.as_bytes()).await?;
369 stdin.close().await?;
370 drop(stdin);
371
372 let apply_result = apply_process.output().await?;
373 anyhow::ensure!(
374 apply_result.status.success(),
375 "Failed to apply uncommitted diff patch with status: {}\nstderr:\n{}\nstdout:\n{}",
376 apply_result.status,
377 String::from_utf8_lossy(&apply_result.stderr),
378 String::from_utf8_lossy(&apply_result.stdout),
379 );
380 }
381
382 step_progress.clear_substatus();
383 Ok(worktree_path)
384}
385
386async fn apply_edit_history(
387 example: &Example,
388 project: &Entity<Project>,
389 cx: &mut AsyncApp,
390) -> Result<OpenedBuffers> {
391 edit_prediction::udiff::apply_diff(&example.spec.edit_history, project, cx).await
392}