1use std::{
2 ops::ControlFlow,
3 path::{Path, PathBuf},
4 sync::Arc,
5 time::Duration,
6};
7
8use anyhow::{Context as _, Result, anyhow};
9use collections::{HashMap, HashSet};
10use fs::Fs;
11use futures::{
12 FutureExt,
13 future::{self, Shared},
14 stream::FuturesUnordered,
15};
16use gpui::{AppContext as _, AsyncApp, Context, Entity, EventEmitter, Task, WeakEntity};
17use language::{
18 Buffer, LanguageRegistry, LocalFile,
19 language_settings::{Formatter, LanguageSettings},
20};
21use lsp::{LanguageServer, LanguageServerId, LanguageServerName};
22use node_runtime::NodeRuntime;
23use paths::default_prettier_dir;
24use prettier::Prettier;
25use smol::stream::StreamExt;
26use util::{ResultExt, TryFutureExt, rel_path::RelPath};
27
28use crate::{
29 File, PathChange, ProjectEntryId, Worktree, lsp_store::WorktreeId,
30 worktree_store::WorktreeStore,
31};
32
33pub struct PrettierStore {
34 node: NodeRuntime,
35 fs: Arc<dyn Fs>,
36 languages: Arc<LanguageRegistry>,
37 worktree_store: Entity<WorktreeStore>,
38 default_prettier: DefaultPrettier,
39 prettiers_per_worktree: HashMap<WorktreeId, HashSet<Option<PathBuf>>>,
40 prettier_ignores_per_worktree: HashMap<WorktreeId, HashSet<PathBuf>>,
41 prettier_instances: HashMap<PathBuf, PrettierInstance>,
42}
43
44pub(crate) enum PrettierStoreEvent {
45 LanguageServerRemoved(LanguageServerId),
46 LanguageServerAdded {
47 new_server_id: LanguageServerId,
48 name: LanguageServerName,
49 prettier_server: Arc<LanguageServer>,
50 },
51}
52
53impl EventEmitter<PrettierStoreEvent> for PrettierStore {}
54
55impl PrettierStore {
56 pub fn new(
57 node: NodeRuntime,
58 fs: Arc<dyn Fs>,
59 languages: Arc<LanguageRegistry>,
60 worktree_store: Entity<WorktreeStore>,
61 _: &mut Context<Self>,
62 ) -> Self {
63 Self {
64 node,
65 fs,
66 languages,
67 worktree_store,
68 default_prettier: DefaultPrettier::default(),
69 prettiers_per_worktree: HashMap::default(),
70 prettier_ignores_per_worktree: HashMap::default(),
71 prettier_instances: HashMap::default(),
72 }
73 }
74
75 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut Context<Self>) {
76 self.prettier_ignores_per_worktree.remove(&id_to_remove);
77 let mut prettier_instances_to_clean = FuturesUnordered::new();
78 if let Some(prettier_paths) = self.prettiers_per_worktree.remove(&id_to_remove) {
79 for path in prettier_paths.iter().flatten() {
80 if let Some(prettier_instance) = self.prettier_instances.remove(path) {
81 prettier_instances_to_clean.push(async move {
82 prettier_instance
83 .server()
84 .await
85 .map(|server| server.server_id())
86 });
87 }
88 }
89 }
90 cx.spawn(async move |prettier_store, cx| {
91 while let Some(prettier_server_id) = prettier_instances_to_clean.next().await {
92 if let Some(prettier_server_id) = prettier_server_id {
93 prettier_store
94 .update(cx, |_, cx| {
95 cx.emit(PrettierStoreEvent::LanguageServerRemoved(
96 prettier_server_id,
97 ));
98 })
99 .ok();
100 }
101 }
102 })
103 .detach();
104 }
105
106 fn prettier_instance_for_buffer(
107 &mut self,
108 buffer: &Entity<Buffer>,
109 cx: &mut Context<Self>,
110 ) -> Task<Option<(Option<PathBuf>, PrettierTask)>> {
111 let buffer = buffer.read(cx);
112 let buffer_file = buffer.file();
113 if buffer.language().is_none() {
114 return Task::ready(None);
115 }
116
117 let node = self.node.clone();
118
119 match File::from_dyn(buffer_file).map(|file| (file.worktree_id(cx), file.abs_path(cx))) {
120 Some((worktree_id, buffer_path)) => {
121 let fs = Arc::clone(&self.fs);
122 let installed_prettiers = self.prettier_instances.keys().cloned().collect();
123 cx.spawn(async move |lsp_store, cx| {
124 match cx
125 .background_spawn(async move {
126 Prettier::locate_prettier_installation(
127 fs.as_ref(),
128 &installed_prettiers,
129 &buffer_path,
130 )
131 .await
132 })
133 .await
134 {
135 Ok(ControlFlow::Break(())) => None,
136 Ok(ControlFlow::Continue(None)) => {
137 let default_instance = lsp_store
138 .update(cx, |lsp_store, cx| {
139 lsp_store
140 .prettiers_per_worktree
141 .entry(worktree_id)
142 .or_default()
143 .insert(None);
144 lsp_store.default_prettier.prettier_task(
145 &node,
146 Some(worktree_id),
147 cx,
148 )
149 })
150 .ok()?;
151 Some((None, default_instance?.log_err().await?))
152 }
153 Ok(ControlFlow::Continue(Some(prettier_dir))) => {
154 lsp_store
155 .update(cx, |lsp_store, _| {
156 lsp_store
157 .prettiers_per_worktree
158 .entry(worktree_id)
159 .or_default()
160 .insert(Some(prettier_dir.clone()))
161 })
162 .ok()?;
163 if let Some(prettier_task) = lsp_store
164 .update(cx, |lsp_store, cx| {
165 lsp_store.prettier_instances.get_mut(&prettier_dir).map(
166 |existing_instance| {
167 existing_instance.prettier_task(
168 &node,
169 Some(&prettier_dir),
170 Some(worktree_id),
171 cx,
172 )
173 },
174 )
175 })
176 .ok()?
177 {
178 log::debug!("Found already started prettier in {prettier_dir:?}");
179 return Some((Some(prettier_dir), prettier_task?.await.log_err()?));
180 }
181
182 log::info!("Found prettier in {prettier_dir:?}, starting.");
183 let new_prettier_task = lsp_store
184 .update(cx, |lsp_store, cx| {
185 let new_prettier_task = Self::start_prettier(
186 node,
187 prettier_dir.clone(),
188 Some(worktree_id),
189 cx,
190 );
191 lsp_store.prettier_instances.insert(
192 prettier_dir.clone(),
193 PrettierInstance {
194 attempt: 0,
195 prettier: Some(new_prettier_task.clone()),
196 },
197 );
198 new_prettier_task
199 })
200 .ok()?;
201 Some((Some(prettier_dir), new_prettier_task))
202 }
203 Err(e) => {
204 log::error!("Failed to determine prettier path for buffer: {e:#}");
205 None
206 }
207 }
208 })
209 }
210 None => {
211 let new_task = self.default_prettier.prettier_task(&node, None, cx);
212 cx.spawn(async move |_, _| Some((None, new_task?.log_err().await?)))
213 }
214 }
215 }
216
217 fn prettier_ignore_for_buffer(
218 &mut self,
219 buffer: &Entity<Buffer>,
220 cx: &mut Context<Self>,
221 ) -> Task<Option<PathBuf>> {
222 let buffer = buffer.read(cx);
223 let buffer_file = buffer.file();
224 if buffer.language().is_none() {
225 return Task::ready(None);
226 }
227 match File::from_dyn(buffer_file).map(|file| (file.worktree_id(cx), file.abs_path(cx))) {
228 Some((worktree_id, buffer_path)) => {
229 let fs = Arc::clone(&self.fs);
230 let prettier_ignores = self
231 .prettier_ignores_per_worktree
232 .get(&worktree_id)
233 .cloned()
234 .unwrap_or_default();
235 cx.spawn(async move |lsp_store, cx| {
236 match cx
237 .background_spawn(async move {
238 Prettier::locate_prettier_ignore(
239 fs.as_ref(),
240 &prettier_ignores,
241 &buffer_path,
242 )
243 .await
244 })
245 .await
246 {
247 Ok(ControlFlow::Break(())) => None,
248 Ok(ControlFlow::Continue(None)) => None,
249 Ok(ControlFlow::Continue(Some(ignore_dir))) => {
250 log::debug!("Found prettier ignore in {ignore_dir:?}");
251 lsp_store
252 .update(cx, |store, _| {
253 store
254 .prettier_ignores_per_worktree
255 .entry(worktree_id)
256 .or_default()
257 .insert(ignore_dir.clone());
258 })
259 .ok();
260 Some(ignore_dir)
261 }
262 Err(e) => {
263 log::error!(
264 "Failed to determine prettier ignore path for buffer: {e:#}"
265 );
266 None
267 }
268 }
269 })
270 }
271 None => Task::ready(None),
272 }
273 }
274
275 fn start_prettier(
276 node: NodeRuntime,
277 prettier_dir: PathBuf,
278 worktree_id: Option<WorktreeId>,
279 cx: &mut Context<Self>,
280 ) -> PrettierTask {
281 cx.spawn(async move |prettier_store, cx| {
282 log::info!("Starting prettier at path {prettier_dir:?}");
283 let new_server_id = prettier_store.read_with(cx, |prettier_store, _| {
284 prettier_store.languages.next_language_server_id()
285 })?;
286
287 let new_prettier = Prettier::start(new_server_id, prettier_dir, node, cx.clone())
288 .await
289 .context("default prettier spawn")
290 .map(Arc::new)
291 .map_err(Arc::new)?;
292 Self::register_new_prettier(
293 &prettier_store,
294 &new_prettier,
295 worktree_id,
296 new_server_id,
297 cx,
298 );
299 Ok(new_prettier)
300 })
301 .shared()
302 }
303
304 fn start_default_prettier(
305 node: NodeRuntime,
306 worktree_id: Option<WorktreeId>,
307 cx: &mut Context<PrettierStore>,
308 ) -> Task<anyhow::Result<PrettierTask>> {
309 cx.spawn(async move |prettier_store, cx| {
310 let installation_task = prettier_store.read_with(cx, |prettier_store, _| {
311 match &prettier_store.default_prettier.prettier {
312 PrettierInstallation::NotInstalled {
313 installation_task, ..
314 } => ControlFlow::Continue(installation_task.clone()),
315 PrettierInstallation::Installed(default_prettier) => {
316 ControlFlow::Break(default_prettier.clone())
317 }
318 }
319 })?;
320 match installation_task {
321 ControlFlow::Continue(None) => {
322 anyhow::bail!("Default prettier is not installed and cannot be started")
323 }
324 ControlFlow::Continue(Some(installation_task)) => {
325 log::info!("Waiting for default prettier to install");
326 if let Err(e) = installation_task.await {
327 prettier_store.update(cx, |project, _| {
328 if let PrettierInstallation::NotInstalled {
329 installation_task,
330 attempts,
331 ..
332 } = &mut project.default_prettier.prettier
333 {
334 *installation_task = None;
335 *attempts += 1;
336 }
337 })?;
338 anyhow::bail!(
339 "Cannot start default prettier due to its installation failure: {e:#}"
340 );
341 }
342 let new_default_prettier =
343 prettier_store.update(cx, |prettier_store, cx| {
344 let new_default_prettier = Self::start_prettier(
345 node,
346 default_prettier_dir().clone(),
347 worktree_id,
348 cx,
349 );
350 prettier_store.default_prettier.prettier =
351 PrettierInstallation::Installed(PrettierInstance {
352 attempt: 0,
353 prettier: Some(new_default_prettier.clone()),
354 });
355 new_default_prettier
356 })?;
357 Ok(new_default_prettier)
358 }
359 ControlFlow::Break(instance) => match instance.prettier {
360 Some(instance) => Ok(instance),
361 None => {
362 let new_default_prettier =
363 prettier_store.update(cx, |prettier_store, cx| {
364 let new_default_prettier = Self::start_prettier(
365 node,
366 default_prettier_dir().clone(),
367 worktree_id,
368 cx,
369 );
370 prettier_store.default_prettier.prettier =
371 PrettierInstallation::Installed(PrettierInstance {
372 attempt: instance.attempt + 1,
373 prettier: Some(new_default_prettier.clone()),
374 });
375 new_default_prettier
376 })?;
377 Ok(new_default_prettier)
378 }
379 },
380 }
381 })
382 }
383
384 fn register_new_prettier(
385 prettier_store: &WeakEntity<Self>,
386 prettier: &Prettier,
387 worktree_id: Option<WorktreeId>,
388 new_server_id: LanguageServerId,
389 cx: &mut AsyncApp,
390 ) {
391 let prettier_dir = prettier.prettier_dir();
392 let is_default = prettier.is_default();
393 if is_default {
394 log::info!("Started default prettier in {prettier_dir:?}");
395 } else {
396 log::info!("Started prettier in {prettier_dir:?}");
397 }
398 if let Some(prettier_server) = prettier.server() {
399 prettier_store
400 .update(cx, |prettier_store, cx| {
401 let name = if is_default {
402 LanguageServerName("prettier (default)".to_string().into())
403 } else {
404 let worktree_path = worktree_id
405 .and_then(|id| {
406 prettier_store
407 .worktree_store
408 .read(cx)
409 .worktree_for_id(id, cx)
410 })
411 .map(|worktree| worktree.read(cx).abs_path());
412 let name = match worktree_path {
413 Some(worktree_path) => {
414 if prettier_dir == worktree_path.as_ref() {
415 let name = prettier_dir
416 .file_name()
417 .and_then(|name| name.to_str())
418 .unwrap_or_default();
419 format!("prettier ({name})")
420 } else {
421 let dir_to_display = prettier_dir
422 .strip_prefix(worktree_path.as_ref())
423 .ok()
424 .unwrap_or(prettier_dir);
425 format!("prettier ({})", dir_to_display.display())
426 }
427 }
428 None => format!("prettier ({})", prettier_dir.display()),
429 };
430 LanguageServerName(name.into())
431 };
432 cx.emit(PrettierStoreEvent::LanguageServerAdded {
433 new_server_id,
434 name,
435 prettier_server: prettier_server.clone(),
436 });
437 })
438 .ok();
439 }
440 }
441
442 pub fn update_prettier_settings(
443 &self,
444 worktree: &Entity<Worktree>,
445 changes: &[(Arc<RelPath>, ProjectEntryId, PathChange)],
446 cx: &mut Context<Self>,
447 ) {
448 let prettier_config_files = Prettier::CONFIG_FILE_NAMES
449 .iter()
450 .map(|name| RelPath::unix(name).unwrap())
451 .collect::<HashSet<_>>();
452
453 let prettier_config_file_changed = changes
454 .iter()
455 .filter(|(_, _, change)| !matches!(change, PathChange::Loaded))
456 .filter(|(path, _, _)| {
457 !path
458 .components()
459 .any(|component| component == "node_modules")
460 })
461 .find(|(path, _, _)| prettier_config_files.contains(path.as_ref()));
462 let current_worktree_id = worktree.read(cx).id();
463 if let Some((config_path, _, _)) = prettier_config_file_changed {
464 log::info!(
465 "Prettier config file {config_path:?} changed, reloading prettier instances for worktree {current_worktree_id}"
466 );
467 let prettiers_to_reload =
468 self.prettiers_per_worktree
469 .get(¤t_worktree_id)
470 .iter()
471 .flat_map(|prettier_paths| prettier_paths.iter())
472 .flatten()
473 .filter_map(|prettier_path| {
474 Some((
475 current_worktree_id,
476 Some(prettier_path.clone()),
477 self.prettier_instances.get(prettier_path)?.clone(),
478 ))
479 })
480 .chain(self.default_prettier.instance().map(|default_prettier| {
481 (current_worktree_id, None, default_prettier.clone())
482 }))
483 .collect::<Vec<_>>();
484
485 cx.background_spawn(async move {
486 let _: Vec<()> = future::join_all(prettiers_to_reload.into_iter().map(|(worktree_id, prettier_path, prettier_instance)| {
487 async move {
488 if let Some(instance) = prettier_instance.prettier {
489 match instance.await {
490 Ok(prettier) => {
491 prettier.clear_cache().log_err().await;
492 },
493 Err(e) => {
494 match prettier_path {
495 Some(prettier_path) => log::error!(
496 "Failed to clear prettier {prettier_path:?} cache for worktree {worktree_id:?} on prettier settings update: {e:#}"
497 ),
498 None => log::error!(
499 "Failed to clear default prettier cache for worktree {worktree_id:?} on prettier settings update: {e:#}"
500 ),
501 }
502 },
503 }
504 }
505 }
506 }))
507 .await;
508 })
509 .detach();
510 }
511 }
512
513 pub fn install_default_prettier(
514 &mut self,
515 worktree: Option<WorktreeId>,
516 plugins: impl Iterator<Item = Arc<str>>,
517 cx: &mut Context<Self>,
518 ) {
519 if cfg!(any(test, feature = "test-support")) {
520 self.default_prettier.installed_plugins.extend(plugins);
521 self.default_prettier.prettier = PrettierInstallation::Installed(PrettierInstance {
522 attempt: 0,
523 prettier: None,
524 });
525 return;
526 }
527
528 let mut new_plugins = plugins.collect::<HashSet<_>>();
529 let node = self.node.clone();
530
531 new_plugins.retain(|plugin| !self.default_prettier.installed_plugins.contains(plugin));
532 let mut installation_attempt = 0;
533 let previous_installation_task = match &mut self.default_prettier.prettier {
534 PrettierInstallation::NotInstalled {
535 installation_task,
536 attempts,
537 not_installed_plugins,
538 } => {
539 installation_attempt = *attempts;
540 if installation_attempt > prettier::FAIL_THRESHOLD {
541 *installation_task = None;
542 log::warn!(
543 "Default prettier installation had failed {installation_attempt} times, not attempting again",
544 );
545 return;
546 }
547 new_plugins.extend(not_installed_plugins.iter().cloned());
548 installation_task.clone()
549 }
550 PrettierInstallation::Installed { .. } => {
551 if new_plugins.is_empty() {
552 return;
553 }
554 None
555 }
556 };
557
558 let plugins_to_install = new_plugins.clone();
559 let fs = Arc::clone(&self.fs);
560 let new_installation_task = cx
561 .spawn(async move |prettier_store, cx| {
562 cx.background_executor().timer(Duration::from_millis(30)).await;
563 let location_data = prettier_store.update(cx, |prettier_store, cx| {
564 worktree.and_then(|worktree_id| {
565 prettier_store.worktree_store
566 .read(cx)
567 .worktree_for_id(worktree_id, cx)
568 .map(|worktree| worktree.read(cx).abs_path())
569 }).map(|locate_from| {
570 let installed_prettiers = prettier_store.prettier_instances.keys().cloned().collect();
571 (locate_from, installed_prettiers)
572 })
573 })?;
574 let locate_prettier_installation = match location_data {
575 Some((locate_from, installed_prettiers)) => Prettier::locate_prettier_installation(
576 fs.as_ref(),
577 &installed_prettiers,
578 locate_from.as_ref(),
579 )
580 .await
581 .context("locate prettier installation").map_err(Arc::new)?,
582 None => ControlFlow::Continue(None),
583 };
584
585 match locate_prettier_installation
586 {
587 ControlFlow::Break(()) => return Ok(()),
588 ControlFlow::Continue(prettier_path) => {
589 if prettier_path.is_some() {
590 new_plugins.clear();
591 }
592 let mut needs_install = should_write_prettier_server_file(fs.as_ref()).await;
593 if let Some(previous_installation_task) = previous_installation_task
594 && let Err(e) = previous_installation_task.await {
595 log::error!("Failed to install default prettier: {e:#}");
596 prettier_store.update(cx, |prettier_store, _| {
597 if let PrettierInstallation::NotInstalled { attempts, not_installed_plugins, .. } = &mut prettier_store.default_prettier.prettier {
598 *attempts += 1;
599 new_plugins.extend(not_installed_plugins.iter().cloned());
600 installation_attempt = *attempts;
601 needs_install = true;
602 };
603 })?;
604 };
605 if installation_attempt > prettier::FAIL_THRESHOLD {
606 prettier_store.update(cx, |prettier_store, _| {
607 if let PrettierInstallation::NotInstalled { installation_task, .. } = &mut prettier_store.default_prettier.prettier {
608 *installation_task = None;
609 };
610 })?;
611 log::warn!(
612 "Default prettier installation had failed {installation_attempt} times, not attempting again",
613 );
614 return Ok(());
615 }
616 prettier_store.update(cx, |prettier_store, _| {
617 new_plugins.retain(|plugin| {
618 !prettier_store.default_prettier.installed_plugins.contains(plugin)
619 });
620 if let PrettierInstallation::NotInstalled { not_installed_plugins, .. } = &mut prettier_store.default_prettier.prettier {
621 not_installed_plugins.retain(|plugin| {
622 !prettier_store.default_prettier.installed_plugins.contains(plugin)
623 });
624 not_installed_plugins.extend(new_plugins.iter().cloned());
625 }
626 needs_install |= !new_plugins.is_empty();
627 })?;
628 if needs_install {
629 log::info!("Initializing default prettier with plugins {new_plugins:?}");
630 let installed_plugins = new_plugins.clone();
631 cx.background_spawn(async move {
632 install_prettier_packages(fs.as_ref(), new_plugins, node).await?;
633 // Save the server file last, so the reinstall need could be determined by the absence of the file.
634 save_prettier_server_file(fs.as_ref()).await?;
635 anyhow::Ok(())
636 })
637 .await
638 .context("prettier & plugins install")
639 .map_err(Arc::new)?;
640 log::info!("Initialized default prettier with plugins: {installed_plugins:?}");
641 prettier_store.update(cx, |prettier_store, _| {
642 prettier_store.default_prettier.prettier =
643 PrettierInstallation::Installed(PrettierInstance {
644 attempt: 0,
645 prettier: None,
646 });
647 prettier_store.default_prettier
648 .installed_plugins
649 .extend(installed_plugins);
650 })?;
651 } else {
652 prettier_store.update(cx, |prettier_store, _| {
653 if let PrettierInstallation::NotInstalled { .. } = &mut prettier_store.default_prettier.prettier {
654 prettier_store.default_prettier.prettier =
655 PrettierInstallation::Installed(PrettierInstance {
656 attempt: 0,
657 prettier: None,
658 });
659 }
660 })?;
661 }
662 }
663 }
664 Ok(())
665 })
666 .shared();
667 self.default_prettier.prettier = PrettierInstallation::NotInstalled {
668 attempts: installation_attempt,
669 installation_task: Some(new_installation_task),
670 not_installed_plugins: plugins_to_install,
671 };
672 }
673
674 pub fn on_settings_changed(
675 &mut self,
676 language_formatters_to_check: Vec<(Option<WorktreeId>, LanguageSettings)>,
677 cx: &mut Context<Self>,
678 ) {
679 let mut prettier_plugins_by_worktree = HashMap::default();
680 for (worktree, language_settings) in language_formatters_to_check {
681 if language_settings.prettier.allowed
682 && let Some(plugins) = prettier_plugins_for_language(&language_settings)
683 {
684 prettier_plugins_by_worktree
685 .entry(worktree)
686 .or_insert_with(HashSet::default)
687 .extend(plugins.iter().cloned());
688 }
689 }
690 for (worktree, prettier_plugins) in prettier_plugins_by_worktree {
691 self.install_default_prettier(
692 worktree,
693 prettier_plugins.into_iter().map(Arc::from),
694 cx,
695 );
696 }
697 }
698}
699
700pub fn prettier_plugins_for_language(
701 language_settings: &LanguageSettings,
702) -> Option<&HashSet<String>> {
703 let formatters = language_settings.formatter.as_ref();
704 if formatters.contains(&Formatter::Prettier) || formatters.contains(&Formatter::Auto) {
705 return Some(&language_settings.prettier.plugins);
706 }
707 None
708}
709
710pub(super) async fn format_with_prettier(
711 prettier_store: &WeakEntity<PrettierStore>,
712 buffer: &Entity<Buffer>,
713 cx: &mut AsyncApp,
714) -> Option<Result<language::Diff>> {
715 let prettier_instance = prettier_store
716 .update(cx, |prettier_store, cx| {
717 prettier_store.prettier_instance_for_buffer(buffer, cx)
718 })
719 .ok()?
720 .await;
721
722 let ignore_dir = prettier_store
723 .update(cx, |prettier_store, cx| {
724 prettier_store.prettier_ignore_for_buffer(buffer, cx)
725 })
726 .ok()?
727 .await;
728
729 let (prettier_path, prettier_task) = prettier_instance?;
730
731 let prettier_description = match prettier_path.as_ref() {
732 Some(path) => format!("prettier at {path:?}"),
733 None => "default prettier instance".to_string(),
734 };
735
736 match prettier_task.await {
737 Ok(prettier) => {
738 let buffer_path = buffer
739 .update(cx, |buffer, cx| {
740 File::from_dyn(buffer.file()).map(|file| file.abs_path(cx))
741 })
742 .ok()
743 .flatten();
744
745 let format_result = prettier
746 .format(buffer, buffer_path, ignore_dir, cx)
747 .await
748 .with_context(|| format!("{} failed to format buffer", prettier_description));
749
750 Some(format_result)
751 }
752 Err(error) => {
753 prettier_store
754 .update(cx, |project, _| {
755 let instance_to_update = match prettier_path {
756 Some(prettier_path) => project.prettier_instances.get_mut(&prettier_path),
757 None => match &mut project.default_prettier.prettier {
758 PrettierInstallation::NotInstalled { .. } => None,
759 PrettierInstallation::Installed(instance) => Some(instance),
760 },
761 };
762
763 if let Some(instance) = instance_to_update {
764 instance.attempt += 1;
765 instance.prettier = None;
766 }
767 })
768 .log_err();
769
770 Some(Err(anyhow!(
771 "{prettier_description} failed to spawn: {error:#}"
772 )))
773 }
774 }
775}
776
777#[derive(Debug)]
778pub struct DefaultPrettier {
779 prettier: PrettierInstallation,
780 installed_plugins: HashSet<Arc<str>>,
781}
782
783#[derive(Debug)]
784pub enum PrettierInstallation {
785 NotInstalled {
786 attempts: usize,
787 installation_task: Option<Shared<Task<Result<(), Arc<anyhow::Error>>>>>,
788 not_installed_plugins: HashSet<Arc<str>>,
789 },
790 Installed(PrettierInstance),
791}
792
793pub type PrettierTask = Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>;
794
795#[derive(Debug, Clone)]
796pub struct PrettierInstance {
797 attempt: usize,
798 prettier: Option<PrettierTask>,
799}
800
801impl Default for DefaultPrettier {
802 fn default() -> Self {
803 Self {
804 prettier: PrettierInstallation::NotInstalled {
805 attempts: 0,
806 installation_task: None,
807 not_installed_plugins: HashSet::default(),
808 },
809 installed_plugins: HashSet::default(),
810 }
811 }
812}
813
814impl DefaultPrettier {
815 pub const fn instance(&self) -> Option<&PrettierInstance> {
816 if let PrettierInstallation::Installed(instance) = &self.prettier {
817 Some(instance)
818 } else {
819 None
820 }
821 }
822
823 pub fn prettier_task(
824 &mut self,
825 node: &NodeRuntime,
826 worktree_id: Option<WorktreeId>,
827 cx: &mut Context<PrettierStore>,
828 ) -> Option<Task<anyhow::Result<PrettierTask>>> {
829 match &mut self.prettier {
830 PrettierInstallation::NotInstalled { .. } => Some(
831 PrettierStore::start_default_prettier(node.clone(), worktree_id, cx),
832 ),
833 PrettierInstallation::Installed(existing_instance) => {
834 existing_instance.prettier_task(node, None, worktree_id, cx)
835 }
836 }
837 }
838}
839
840impl PrettierInstance {
841 pub fn prettier_task(
842 &mut self,
843 node: &NodeRuntime,
844 prettier_dir: Option<&Path>,
845 worktree_id: Option<WorktreeId>,
846 cx: &mut Context<PrettierStore>,
847 ) -> Option<Task<anyhow::Result<PrettierTask>>> {
848 if self.attempt > prettier::FAIL_THRESHOLD {
849 match prettier_dir {
850 Some(prettier_dir) => log::warn!(
851 "Prettier from path {prettier_dir:?} exceeded launch threshold, not starting"
852 ),
853 None => log::warn!("Default prettier exceeded launch threshold, not starting"),
854 }
855 return None;
856 }
857 Some(match &self.prettier {
858 Some(prettier_task) => Task::ready(Ok(prettier_task.clone())),
859 None => match prettier_dir {
860 Some(prettier_dir) => {
861 let new_task = PrettierStore::start_prettier(
862 node.clone(),
863 prettier_dir.to_path_buf(),
864 worktree_id,
865 cx,
866 );
867 self.attempt += 1;
868 self.prettier = Some(new_task.clone());
869 Task::ready(Ok(new_task))
870 }
871 None => {
872 self.attempt += 1;
873 let node = node.clone();
874 cx.spawn(async move |prettier_store, cx| {
875 prettier_store
876 .update(cx, |_, cx| {
877 PrettierStore::start_default_prettier(node, worktree_id, cx)
878 })?
879 .await
880 })
881 }
882 },
883 })
884 }
885
886 pub async fn server(&self) -> Option<Arc<LanguageServer>> {
887 self.prettier.clone()?.await.ok()?.server().cloned()
888 }
889}
890
891async fn install_prettier_packages(
892 fs: &dyn Fs,
893 plugins_to_install: HashSet<Arc<str>>,
894 node: NodeRuntime,
895) -> anyhow::Result<()> {
896 let packages_to_versions = future::try_join_all(
897 plugins_to_install
898 .iter()
899 .chain(Some(&"prettier".into()))
900 .map(|package_name| async {
901 let returned_package_name = package_name.to_string();
902 let latest_version = node
903 .npm_package_latest_version(package_name)
904 .await
905 .with_context(|| {
906 format!("fetching latest npm version for package {returned_package_name}")
907 })?;
908 anyhow::Ok((returned_package_name, latest_version))
909 }),
910 )
911 .await
912 .context("fetching latest npm versions")?;
913
914 let default_prettier_dir = default_prettier_dir().as_path();
915 match fs.metadata(default_prettier_dir).await.with_context(|| {
916 format!("fetching FS metadata for default prettier dir {default_prettier_dir:?}")
917 })? {
918 Some(prettier_dir_metadata) => anyhow::ensure!(
919 prettier_dir_metadata.is_dir,
920 "default prettier dir {default_prettier_dir:?} is not a directory"
921 ),
922 None => fs
923 .create_dir(default_prettier_dir)
924 .await
925 .with_context(|| format!("creating default prettier dir {default_prettier_dir:?}"))?,
926 }
927
928 log::info!("Installing default prettier and plugins: {packages_to_versions:?}");
929 let borrowed_packages = packages_to_versions
930 .iter()
931 .map(|(package, version)| (package.as_str(), version.as_str()))
932 .collect::<Vec<_>>();
933 node.npm_install_packages(default_prettier_dir, &borrowed_packages)
934 .await
935 .context("fetching formatter packages")?;
936 anyhow::Ok(())
937}
938
939async fn save_prettier_server_file(fs: &dyn Fs) -> anyhow::Result<()> {
940 let prettier_wrapper_path = default_prettier_dir().join(prettier::PRETTIER_SERVER_FILE);
941 fs.save(
942 &prettier_wrapper_path,
943 &text::Rope::from(prettier::PRETTIER_SERVER_JS),
944 text::LineEnding::Unix,
945 )
946 .await
947 .with_context(|| {
948 format!(
949 "writing {} file at {prettier_wrapper_path:?}",
950 prettier::PRETTIER_SERVER_FILE
951 )
952 })?;
953 Ok(())
954}
955
956async fn should_write_prettier_server_file(fs: &dyn Fs) -> bool {
957 let prettier_wrapper_path = default_prettier_dir().join(prettier::PRETTIER_SERVER_FILE);
958 if !fs.is_file(&prettier_wrapper_path).await {
959 return true;
960 }
961 let Ok(prettier_server_file_contents) = fs.load(&prettier_wrapper_path).await else {
962 return true;
963 };
964 prettier_server_file_contents != prettier::PRETTIER_SERVER_JS
965}