zed 0.111.6

This fix only required changing the `overrides` queries for JavaScript
and TSX. I've made the fix in both the `zed2` and `zed` crates.

Release Notes:

- Fixed an issue in JavaScript and TSX files, where the 'toggle
comments' command used the wrong comment syntax inside of JSX tags and
expressions within JSX.

Cargo.lock

@@ -2424,8 +2424,10 @@ dependencies = [
  "client",
  "collections",
  "editor",
+ "futures 0.3.28",
  "gpui",
  "language",
+ "log",
  "lsp",
  "postage",
  "project",
@@ -7510,7 +7512,6 @@ dependencies = [
  "collections",
  "editor",
  "futures 0.3.28",
- "globset",
  "gpui",
  "language",
  "log",
@@ -9546,7 +9547,7 @@ dependencies = [
 [[package]]
 name = "tree-sitter-vue"
 version = "0.0.1"
-source = "git+https://github.com/zed-industries/tree-sitter-vue?rev=95b2890#95b28908d90e928c308866f7631e73ef6e1d4b5f"
+source = "git+https://github.com/zed-industries/tree-sitter-vue?rev=9b6cb221ccb8d0b956fcb17e9a1efac2feefeb58#9b6cb221ccb8d0b956fcb17e9a1efac2feefeb58"
 dependencies = [
  "cc",
  "tree-sitter",
@@ -9794,6 +9795,7 @@ dependencies = [
  "dirs 3.0.2",
  "futures 0.3.28",
  "git2",
+ "globset",
  "isahc",
  "lazy_static",
  "log",
@@ -10821,7 +10823,7 @@ dependencies = [
 
 [[package]]
 name = "zed"
-version = "0.111.0"
+version = "0.111.6"
 dependencies = [
  "activity_indicator",
  "ai",

Cargo.toml

@@ -175,7 +175,7 @@ tree-sitter-yaml = { git = "https://github.com/zed-industries/tree-sitter-yaml",
 tree-sitter-lua = "0.0.14"
 tree-sitter-nix = { git = "https://github.com/nix-community/tree-sitter-nix", rev = "66e3e9ce9180ae08fc57372061006ef83f0abde7" }
 tree-sitter-nu = { git = "https://github.com/nushell/tree-sitter-nu", rev = "786689b0562b9799ce53e824cb45a1a2a04dc673"}
-tree-sitter-vue = {git = "https://github.com/zed-industries/tree-sitter-vue", rev = "95b2890"}
+tree-sitter-vue = {git = "https://github.com/zed-industries/tree-sitter-vue", rev = "9b6cb221ccb8d0b956fcb17e9a1efac2feefeb58"}
 [patch.crates-io]
 tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "35a6052fbcafc5e5fc0f9415b8652be7dcaf7222" }
 async-task = { git = "https://github.com/zed-industries/async-task", rev = "341b57d6de98cdfd7b418567b8de2022ca993a6e" }

crates/ai/src/test.rs

@@ -153,10 +153,17 @@ impl FakeCompletionProvider {
 
     pub fn send_completion(&self, completion: impl Into<String>) {
         let mut tx = self.last_completion_tx.lock();
-        tx.as_mut().unwrap().try_send(completion.into()).unwrap();
+
+        println!("COMPLETION TX: {:?}", &tx);
+
+        let a = tx.as_mut().unwrap();
+        a.try_send(completion.into()).unwrap();
+
+        // tx.as_mut().unwrap().try_send(completion.into()).unwrap();
     }
 
     pub fn finish_completion(&self) {
+        println!("FINISHING COMPLETION");
         self.last_completion_tx.lock().take().unwrap();
     }
 }
@@ -181,8 +188,10 @@ impl CompletionProvider for FakeCompletionProvider {
         &self,
         _prompt: Box<dyn CompletionRequest>,
     ) -> BoxFuture<'static, anyhow::Result<BoxStream<'static, anyhow::Result<String>>>> {
+        println!("COMPLETING");
         let (tx, rx) = mpsc::channel(1);
         *self.last_completion_tx.lock() = Some(tx);
+        println!("TX: {:?}", *self.last_completion_tx.lock());
         async move { Ok(rx.map(|rx| Ok(rx)).boxed()) }.boxed()
     }
     fn box_clone(&self) -> Box<dyn CompletionProvider> {

crates/assistant/src/assistant_panel.rs

@@ -142,7 +142,7 @@ pub struct AssistantPanel {
     zoomed: bool,
     has_focus: bool,
     toolbar: ViewHandle<Toolbar>,
-    completion_provider: Box<dyn CompletionProvider>,
+    completion_provider: Arc<dyn CompletionProvider>,
     api_key_editor: Option<ViewHandle<Editor>>,
     languages: Arc<LanguageRegistry>,
     fs: Arc<dyn Fs>,
@@ -204,7 +204,7 @@ impl AssistantPanel {
 
                     let semantic_index = SemanticIndex::global(cx);
                     // Defaulting currently to GPT4, allow for this to be set via config.
-                    let completion_provider = Box::new(OpenAICompletionProvider::new(
+                    let completion_provider = Arc::new(OpenAICompletionProvider::new(
                         "gpt-4",
                         cx.background().clone(),
                     ));
@@ -259,7 +259,13 @@ impl AssistantPanel {
         cx: &mut ViewContext<Workspace>,
     ) {
         let this = if let Some(this) = workspace.panel::<AssistantPanel>(cx) {
-            if this.update(cx, |assistant, _| assistant.has_credentials()) {
+            if this.update(cx, |assistant, cx| {
+                if !assistant.has_credentials() {
+                    assistant.load_credentials(cx);
+                };
+
+                assistant.has_credentials()
+            }) {
                 this
             } else {
                 workspace.focus_panel::<AssistantPanel>(cx);
@@ -320,13 +326,10 @@ impl AssistantPanel {
         };
 
         let inline_assist_id = post_inc(&mut self.next_inline_assist_id);
-        let provider = Arc::new(OpenAICompletionProvider::new(
-            "gpt-4",
-            cx.background().clone(),
-        ));
+        let provider = self.completion_provider.clone();
 
         // Retrieve Credentials Authenticates the Provider
-        // provider.retrieve_credentials(cx);
+        provider.retrieve_credentials(cx);
 
         let codegen = cx.add_model(|cx| {
             Codegen::new(editor.read(cx).buffer().clone(), codegen_kind, provider, cx)
@@ -1439,7 +1442,7 @@ struct Conversation {
     pending_save: Task<Result<()>>,
     path: Option<PathBuf>,
     _subscriptions: Vec<Subscription>,
-    completion_provider: Box<dyn CompletionProvider>,
+    completion_provider: Arc<dyn CompletionProvider>,
 }
 
 impl Entity for Conversation {
@@ -1450,7 +1453,7 @@ impl Conversation {
     fn new(
         language_registry: Arc<LanguageRegistry>,
         cx: &mut ModelContext<Self>,
-        completion_provider: Box<dyn CompletionProvider>,
+        completion_provider: Arc<dyn CompletionProvider>,
     ) -> Self {
         let markdown = language_registry.language_for_name("Markdown");
         let buffer = cx.add_model(|cx| {
@@ -1544,7 +1547,7 @@ impl Conversation {
             None => Some(Uuid::new_v4().to_string()),
         };
         let model = saved_conversation.model;
-        let completion_provider: Box<dyn CompletionProvider> = Box::new(
+        let completion_provider: Arc<dyn CompletionProvider> = Arc::new(
             OpenAICompletionProvider::new(model.full_name(), cx.background().clone()),
         );
         completion_provider.retrieve_credentials(cx);
@@ -2201,7 +2204,7 @@ struct ConversationEditor {
 
 impl ConversationEditor {
     fn new(
-        completion_provider: Box<dyn CompletionProvider>,
+        completion_provider: Arc<dyn CompletionProvider>,
         language_registry: Arc<LanguageRegistry>,
         fs: Arc<dyn Fs>,
         workspace: WeakViewHandle<Workspace>,
@@ -3406,7 +3409,7 @@ mod tests {
         init(cx);
         let registry = Arc::new(LanguageRegistry::test());
 
-        let completion_provider = Box::new(FakeCompletionProvider::new());
+        let completion_provider = Arc::new(FakeCompletionProvider::new());
         let conversation = cx.add_model(|cx| Conversation::new(registry, cx, completion_provider));
         let buffer = conversation.read(cx).buffer.clone();
 
@@ -3535,7 +3538,7 @@ mod tests {
         cx.set_global(SettingsStore::test(cx));
         init(cx);
         let registry = Arc::new(LanguageRegistry::test());
-        let completion_provider = Box::new(FakeCompletionProvider::new());
+        let completion_provider = Arc::new(FakeCompletionProvider::new());
 
         let conversation = cx.add_model(|cx| Conversation::new(registry, cx, completion_provider));
         let buffer = conversation.read(cx).buffer.clone();
@@ -3633,7 +3636,7 @@ mod tests {
         cx.set_global(SettingsStore::test(cx));
         init(cx);
         let registry = Arc::new(LanguageRegistry::test());
-        let completion_provider = Box::new(FakeCompletionProvider::new());
+        let completion_provider = Arc::new(FakeCompletionProvider::new());
         let conversation = cx.add_model(|cx| Conversation::new(registry, cx, completion_provider));
         let buffer = conversation.read(cx).buffer.clone();
 
@@ -3716,7 +3719,7 @@ mod tests {
         cx.set_global(SettingsStore::test(cx));
         init(cx);
         let registry = Arc::new(LanguageRegistry::test());
-        let completion_provider = Box::new(FakeCompletionProvider::new());
+        let completion_provider = Arc::new(FakeCompletionProvider::new());
         let conversation =
             cx.add_model(|cx| Conversation::new(registry.clone(), cx, completion_provider));
         let buffer = conversation.read(cx).buffer.clone();

crates/assistant/src/codegen.rs

@@ -367,6 +367,8 @@ fn strip_invalid_spans_from_codeblock(
 
 #[cfg(test)]
 mod tests {
+    use std::sync::Arc;
+
     use super::*;
     use ai::test::FakeCompletionProvider;
     use futures::stream::{self};
@@ -437,6 +439,7 @@ mod tests {
             let max_len = cmp::min(new_text.len(), 10);
             let len = rng.gen_range(1..=max_len);
             let (chunk, suffix) = new_text.split_at(len);
+            println!("CHUNK: {:?}", &chunk);
             provider.send_completion(chunk);
             new_text = suffix;
             deterministic.run_until_parked();
@@ -569,6 +572,7 @@ mod tests {
             let max_len = cmp::min(new_text.len(), 10);
             let len = rng.gen_range(1..=max_len);
             let (chunk, suffix) = new_text.split_at(len);
+            println!("{:?}", &chunk);
             provider.send_completion(chunk);
             new_text = suffix;
             deterministic.run_until_parked();

crates/diagnostics/Cargo.toml

@@ -20,7 +20,9 @@ theme = { path = "../theme" }
 util = { path = "../util" }
 workspace = { path = "../workspace" }
 
+log.workspace = true
 anyhow.workspace = true
+futures.workspace = true
 schemars.workspace = true
 serde.workspace = true
 serde_derive.workspace = true

crates/diagnostics/src/diagnostics.rs

@@ -2,8 +2,8 @@ pub mod items;
 mod project_diagnostics_settings;
 mod toolbar_controls;
 
-use anyhow::Result;
-use collections::{BTreeSet, HashSet};
+use anyhow::{Context, Result};
+use collections::{HashMap, HashSet};
 use editor::{
     diagnostic_block_renderer,
     display_map::{BlockDisposition, BlockId, BlockProperties, BlockStyle, RenderBlock},
@@ -11,9 +11,10 @@ use editor::{
     scroll::autoscroll::Autoscroll,
     Editor, ExcerptId, ExcerptRange, MultiBuffer, ToOffset,
 };
+use futures::future::try_join_all;
 use gpui::{
     actions, elements::*, fonts::TextStyle, serde_json, AnyViewHandle, AppContext, Entity,
-    ModelHandle, Task, View, ViewContext, ViewHandle, WeakViewHandle,
+    ModelHandle, Subscription, Task, View, ViewContext, ViewHandle, WeakViewHandle,
 };
 use language::{
     Anchor, Bias, Buffer, Diagnostic, DiagnosticEntry, DiagnosticSeverity, Point, Selection,
@@ -28,6 +29,7 @@ use std::{
     any::{Any, TypeId},
     borrow::Cow,
     cmp::Ordering,
+    mem,
     ops::Range,
     path::PathBuf,
     sync::Arc,
@@ -60,8 +62,10 @@ struct ProjectDiagnosticsEditor {
     summary: DiagnosticSummary,
     excerpts: ModelHandle<MultiBuffer>,
     path_states: Vec<PathState>,
-    paths_to_update: BTreeSet<(ProjectPath, LanguageServerId)>,
+    paths_to_update: HashMap<LanguageServerId, HashSet<ProjectPath>>,
+    current_diagnostics: HashMap<LanguageServerId, HashSet<ProjectPath>>,
     include_warnings: bool,
+    _subscriptions: Vec<Subscription>,
 }
 
 struct PathState {
@@ -125,9 +129,12 @@ impl View for ProjectDiagnosticsEditor {
                 "summary": project.diagnostic_summary(cx),
             }),
             "summary": self.summary,
-            "paths_to_update": self.paths_to_update.iter().map(|(path, server_id)|
-                (path.path.to_string_lossy(), server_id.0)
-            ).collect::<Vec<_>>(),
+            "paths_to_update": self.paths_to_update.iter().map(|(server_id, paths)|
+                (server_id.0, paths.into_iter().map(|path| path.path.to_string_lossy()).collect::<Vec<_>>())
+            ).collect::<HashMap<_, _>>(),
+            "current_diagnostics": self.current_diagnostics.iter().map(|(server_id, paths)|
+                (server_id.0, paths.into_iter().map(|path| path.path.to_string_lossy()).collect::<Vec<_>>())
+            ).collect::<HashMap<_, _>>(),
             "paths_states": self.path_states.iter().map(|state|
                 json!({
                     "path": state.path.path.to_string_lossy(),
@@ -149,21 +156,30 @@ impl ProjectDiagnosticsEditor {
         workspace: WeakViewHandle<Workspace>,
         cx: &mut ViewContext<Self>,
     ) -> Self {
-        cx.subscribe(&project_handle, |this, _, event, cx| match event {
-            project::Event::DiskBasedDiagnosticsFinished { language_server_id } => {
-                this.update_excerpts(Some(*language_server_id), cx);
-                this.update_title(cx);
-            }
-            project::Event::DiagnosticsUpdated {
-                language_server_id,
-                path,
-            } => {
-                this.paths_to_update
-                    .insert((path.clone(), *language_server_id));
-            }
-            _ => {}
-        })
-        .detach();
+        let project_event_subscription =
+            cx.subscribe(&project_handle, |this, _, event, cx| match event {
+                project::Event::DiskBasedDiagnosticsFinished { language_server_id } => {
+                    log::debug!("Disk based diagnostics finished for server {language_server_id}");
+                    this.update_excerpts(Some(*language_server_id), cx);
+                }
+                project::Event::DiagnosticsUpdated {
+                    language_server_id,
+                    path,
+                } => {
+                    log::debug!("Adding path {path:?} to update for server {language_server_id}");
+                    this.paths_to_update
+                        .entry(*language_server_id)
+                        .or_default()
+                        .insert(path.clone());
+                    let no_multiselections = this.editor.update(cx, |editor, cx| {
+                        editor.selections.all::<usize>(cx).len() <= 1
+                    });
+                    if no_multiselections && !this.is_dirty(cx) {
+                        this.update_excerpts(Some(*language_server_id), cx);
+                    }
+                }
+                _ => {}
+            });
 
         let excerpts = cx.add_model(|cx| MultiBuffer::new(project_handle.read(cx).replica_id()));
         let editor = cx.add_view(|cx| {
@@ -172,19 +188,14 @@ impl ProjectDiagnosticsEditor {
             editor.set_vertical_scroll_margin(5, cx);
             editor
         });
-        cx.subscribe(&editor, |this, _, event, cx| {
+        let editor_event_subscription = cx.subscribe(&editor, |this, _, event, cx| {
             cx.emit(event.clone());
             if event == &editor::Event::Focused && this.path_states.is_empty() {
                 cx.focus_self()
             }
-        })
-        .detach();
+        });
 
         let project = project_handle.read(cx);
-        let paths_to_update = project
-            .diagnostic_summaries(cx)
-            .map(|(path, server_id, _)| (path, server_id))
-            .collect();
         let summary = project.diagnostic_summary(cx);
         let mut this = Self {
             project: project_handle,
@@ -193,8 +204,10 @@ impl ProjectDiagnosticsEditor {
             excerpts,
             editor,
             path_states: Default::default(),
-            paths_to_update,
+            paths_to_update: HashMap::default(),
             include_warnings: settings::get::<ProjectDiagnosticsSettings>(cx).include_warnings,
+            current_diagnostics: HashMap::default(),
+            _subscriptions: vec![project_event_subscription, editor_event_subscription],
         };
         this.update_excerpts(None, cx);
         this
@@ -214,12 +227,7 @@ impl ProjectDiagnosticsEditor {
 
     fn toggle_warnings(&mut self, _: &ToggleWarnings, cx: &mut ViewContext<Self>) {
         self.include_warnings = !self.include_warnings;
-        self.paths_to_update = self
-            .project
-            .read(cx)
-            .diagnostic_summaries(cx)
-            .map(|(path, server_id, _)| (path, server_id))
-            .collect();
+        self.paths_to_update = self.current_diagnostics.clone();
         self.update_excerpts(None, cx);
         cx.notify();
     }
@@ -229,29 +237,94 @@ impl ProjectDiagnosticsEditor {
         language_server_id: Option<LanguageServerId>,
         cx: &mut ViewContext<Self>,
     ) {
-        let mut paths = Vec::new();
-        self.paths_to_update.retain(|(path, server_id)| {
-            if language_server_id
-                .map_or(true, |language_server_id| language_server_id == *server_id)
-            {
-                paths.push(path.clone());
-                false
+        log::debug!("Updating excerpts for server {language_server_id:?}");
+        let mut paths_to_recheck = HashSet::default();
+        let mut new_summaries: HashMap<LanguageServerId, HashSet<ProjectPath>> = self
+            .project
+            .read(cx)
+            .diagnostic_summaries(cx)
+            .fold(HashMap::default(), |mut summaries, (path, server_id, _)| {
+                summaries.entry(server_id).or_default().insert(path);
+                summaries
+            });
+        let mut old_diagnostics = if let Some(language_server_id) = language_server_id {
+            new_summaries.retain(|server_id, _| server_id == &language_server_id);
+            self.paths_to_update.retain(|server_id, paths| {
+                if server_id == &language_server_id {
+                    paths_to_recheck.extend(paths.drain());
+                    false
+                } else {
+                    true
+                }
+            });
+            let mut old_diagnostics = HashMap::default();
+            if let Some(new_paths) = new_summaries.get(&language_server_id) {
+                if let Some(old_paths) = self
+                    .current_diagnostics
+                    .insert(language_server_id, new_paths.clone())
+                {
+                    old_diagnostics.insert(language_server_id, old_paths);
+                }
             } else {
-                true
+                if let Some(old_paths) = self.current_diagnostics.remove(&language_server_id) {
+                    old_diagnostics.insert(language_server_id, old_paths);
+                }
             }
-        });
+            old_diagnostics
+        } else {
+            paths_to_recheck.extend(self.paths_to_update.drain().flat_map(|(_, paths)| paths));
+            mem::replace(&mut self.current_diagnostics, new_summaries.clone())
+        };
+        for (server_id, new_paths) in new_summaries {
+            match old_diagnostics.remove(&server_id) {
+                Some(mut old_paths) => {
+                    paths_to_recheck.extend(
+                        new_paths
+                            .into_iter()
+                            .filter(|new_path| !old_paths.remove(new_path)),
+                    );
+                    paths_to_recheck.extend(old_paths);
+                }
+                None => paths_to_recheck.extend(new_paths),
+            }
+        }
+        paths_to_recheck.extend(old_diagnostics.into_iter().flat_map(|(_, paths)| paths));
+
+        if paths_to_recheck.is_empty() {
+            log::debug!("No paths to recheck for language server {language_server_id:?}");
+            return;
+        }
+        log::debug!(
+            "Rechecking {} paths for language server {:?}",
+            paths_to_recheck.len(),
+            language_server_id
+        );
         let project = self.project.clone();
         cx.spawn(|this, mut cx| {
             async move {
-                for path in paths {
-                    let buffer = project
-                        .update(&mut cx, |project, cx| project.open_buffer(path.clone(), cx))
-                        .await?;
-                    this.update(&mut cx, |this, cx| {
-                        this.populate_excerpts(path, language_server_id, buffer, cx)
-                    })?;
-                }
-                Result::<_, anyhow::Error>::Ok(())
+                let _: Vec<()> = try_join_all(paths_to_recheck.into_iter().map(|path| {
+                    let mut cx = cx.clone();
+                    let project = project.clone();
+                    async move {
+                        let buffer = project
+                            .update(&mut cx, |project, cx| project.open_buffer(path.clone(), cx))
+                            .await
+                            .with_context(|| format!("opening buffer for path {path:?}"))?;
+                        this.update(&mut cx, |this, cx| {
+                            this.populate_excerpts(path, language_server_id, buffer, cx);
+                        })
+                        .context("missing project")?;
+                        anyhow::Ok(())
+                    }
+                }))
+                .await
+                .context("rechecking diagnostics for paths")?;
+
+                this.update(&mut cx, |this, cx| {
+                    this.summary = this.project.read(cx).diagnostic_summary(cx);
+                    cx.emit(Event::TitleChanged);
+                })?;
+                anyhow::Ok(())
             }
             .log_err()
         })
@@ -554,11 +627,6 @@ impl ProjectDiagnosticsEditor {
         }
         cx.notify();
     }
-
-    fn update_title(&mut self, cx: &mut ViewContext<Self>) {
-        self.summary = self.project.read(cx).diagnostic_summary(cx);
-        cx.emit(Event::TitleChanged);
-    }
 }
 
 impl Item for ProjectDiagnosticsEditor {
@@ -1301,25 +1369,6 @@ mod tests {
                     cx,
                 )
                 .unwrap();
-            project
-                .update_diagnostic_entries(
-                    server_id_2,
-                    PathBuf::from("/test/main.js"),
-                    None,
-                    vec![DiagnosticEntry {
-                        range: Unclipped(PointUtf16::new(1, 0))..Unclipped(PointUtf16::new(1, 1)),
-                        diagnostic: Diagnostic {
-                            message: "warning 1".to_string(),
-                            severity: DiagnosticSeverity::ERROR,
-                            is_primary: true,
-                            is_disk_based: true,
-                            group_id: 2,
-                            ..Default::default()
-                        },
-                    }],
-                    cx,
-                )
-                .unwrap();
         });
 
         // The first language server finishes
@@ -1353,6 +1402,25 @@ mod tests {
 
         // The second language server finishes
         project.update(cx, |project, cx| {
+            project
+                .update_diagnostic_entries(
+                    server_id_2,
+                    PathBuf::from("/test/main.js"),
+                    None,
+                    vec![DiagnosticEntry {
+                        range: Unclipped(PointUtf16::new(1, 0))..Unclipped(PointUtf16::new(1, 1)),
+                        diagnostic: Diagnostic {
+                            message: "warning 1".to_string(),
+                            severity: DiagnosticSeverity::ERROR,
+                            is_primary: true,
+                            is_disk_based: true,
+                            group_id: 2,
+                            ..Default::default()
+                        },
+                    }],
+                    cx,
+                )
+                .unwrap();
             project.disk_based_diagnostics_finished(server_id_2, cx);
         });
 

crates/editor/src/items.rs

@@ -33,9 +33,9 @@ use util::{
     paths::{PathExt, FILE_ROW_COLUMN_DELIMITER},
     ResultExt, TryFutureExt,
 };
-use workspace::item::{BreadcrumbText, FollowableItemHandle};
+use workspace::item::{BreadcrumbText, FollowableItemHandle, ItemHandle};
 use workspace::{
-    item::{FollowableItem, Item, ItemEvent, ItemHandle, ProjectItem},
+    item::{FollowableItem, Item, ItemEvent, ProjectItem},
     searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
     ItemId, ItemNavHistory, Pane, StatusItemView, ToolbarItemLocation, ViewId, Workspace,
     WorkspaceId,

crates/language/src/buffer_tests.rs

@@ -1692,14 +1692,25 @@ fn test_language_scope_at_with_javascript(cx: &mut AppContext) {
             r#"
                 (jsx_element) @element
                 (string) @string
+                [
+                    (jsx_opening_element)
+                    (jsx_closing_element)
+                    (jsx_expression)
+                ] @default
             "#,
         )
         .unwrap();
 
-        let text = r#"a["b"] = <C d="e"></C>;"#;
+        let text = r#"
+            a["b"] = <C d="e">
+                <F></F>
+                { g() }
+            </C>;
+        "#
+        .unindent();
 
         let buffer =
-            Buffer::new(0, cx.model_id() as u64, text).with_language(Arc::new(language), cx);
+            Buffer::new(0, cx.model_id() as u64, &text).with_language(Arc::new(language), cx);
         let snapshot = buffer.snapshot();
 
         let config = snapshot.language_scope_at(0).unwrap();
@@ -1710,7 +1721,9 @@ fn test_language_scope_at_with_javascript(cx: &mut AppContext) {
             &[true, true]
         );
 
-        let string_config = snapshot.language_scope_at(3).unwrap();
+        let string_config = snapshot
+            .language_scope_at(text.find("b\"").unwrap())
+            .unwrap();
         assert_eq!(string_config.line_comment_prefix().unwrap().as_ref(), "// ");
         // Second bracket pair is disabled
         assert_eq!(
@@ -1718,18 +1731,49 @@ fn test_language_scope_at_with_javascript(cx: &mut AppContext) {
             &[true, false]
         );
 
-        let element_config = snapshot.language_scope_at(10).unwrap();
+        // In between JSX tags: use the `element` override.
+        let element_config = snapshot
+            .language_scope_at(text.find("<F>").unwrap())
+            .unwrap();
         assert_eq!(element_config.line_comment_prefix(), None);
         assert_eq!(
             element_config.block_comment_delimiters(),
             Some((&"{/*".into(), &"*/}".into()))
         );
-        // Both bracket pairs are enabled
         assert_eq!(
             element_config.brackets().map(|e| e.1).collect::<Vec<_>>(),
             &[true, true]
         );
 
+        // Within a JSX tag: use the default config.
+        let tag_config = snapshot
+            .language_scope_at(text.find(" d=").unwrap() + 1)
+            .unwrap();
+        assert_eq!(tag_config.line_comment_prefix().unwrap().as_ref(), "// ");
+        assert_eq!(
+            tag_config.brackets().map(|e| e.1).collect::<Vec<_>>(),
+            &[true, true]
+        );
+
+        // In a JSX expression: use the default config.
+        let expression_in_element_config = snapshot
+            .language_scope_at(text.find("{").unwrap() + 1)
+            .unwrap();
+        assert_eq!(
+            expression_in_element_config
+                .line_comment_prefix()
+                .unwrap()
+                .as_ref(),
+            "// "
+        );
+        assert_eq!(
+            expression_in_element_config
+                .brackets()
+                .map(|e| e.1)
+                .collect::<Vec<_>>(),
+            &[true, true]
+        );
+
         buffer
     });
 }

crates/language2/src/buffer_tests.rs

@@ -1696,14 +1696,25 @@ fn test_language_scope_at_with_javascript(cx: &mut AppContext) {
             r#"
                 (jsx_element) @element
                 (string) @string
+                [
+                    (jsx_opening_element)
+                    (jsx_closing_element)
+                    (jsx_expression)
+                ] @default
             "#,
         )
         .unwrap();
 
-        let text = r#"a["b"] = <C d="e"></C>;"#;
+        let text = r#"
+            a["b"] = <C d="e">
+                <F></F>
+                { g() }
+            </C>;
+        "#
+        .unindent();
 
         let buffer =
-            Buffer::new(0, cx.entity_id().as_u64(), text).with_language(Arc::new(language), cx);
+            Buffer::new(0, cx.entity_id().as_u64(), &text).with_language(Arc::new(language), cx);
         let snapshot = buffer.snapshot();
 
         let config = snapshot.language_scope_at(0).unwrap();
@@ -1714,7 +1725,9 @@ fn test_language_scope_at_with_javascript(cx: &mut AppContext) {
             &[true, true]
         );
 
-        let string_config = snapshot.language_scope_at(3).unwrap();
+        let string_config = snapshot
+            .language_scope_at(text.find("b\"").unwrap())
+            .unwrap();
         assert_eq!(string_config.line_comment_prefix().unwrap().as_ref(), "// ");
         // Second bracket pair is disabled
         assert_eq!(
@@ -1722,18 +1735,49 @@ fn test_language_scope_at_with_javascript(cx: &mut AppContext) {
             &[true, false]
         );
 
-        let element_config = snapshot.language_scope_at(10).unwrap();
+        // In between JSX tags: use the `element` override.
+        let element_config = snapshot
+            .language_scope_at(text.find("<F>").unwrap())
+            .unwrap();
         assert_eq!(element_config.line_comment_prefix(), None);
         assert_eq!(
             element_config.block_comment_delimiters(),
             Some((&"{/*".into(), &"*/}".into()))
         );
-        // Both bracket pairs are enabled
         assert_eq!(
             element_config.brackets().map(|e| e.1).collect::<Vec<_>>(),
             &[true, true]
         );
 
+        // Within a JSX tag: use the default config.
+        let tag_config = snapshot
+            .language_scope_at(text.find(" d=").unwrap() + 1)
+            .unwrap();
+        assert_eq!(tag_config.line_comment_prefix().unwrap().as_ref(), "// ");
+        assert_eq!(
+            tag_config.brackets().map(|e| e.1).collect::<Vec<_>>(),
+            &[true, true]
+        );
+
+        // In a JSX expression: use the default config.
+        let expression_in_element_config = snapshot
+            .language_scope_at(text.find("{").unwrap() + 1)
+            .unwrap();
+        assert_eq!(
+            expression_in_element_config
+                .line_comment_prefix()
+                .unwrap()
+                .as_ref(),
+            "// "
+        );
+        assert_eq!(
+            expression_in_element_config
+                .brackets()
+                .map(|e| e.1)
+                .collect::<Vec<_>>(),
+            &[true, true]
+        );
+
         buffer
     });
 }

crates/prettier/src/prettier.rs

@@ -1,9 +1,9 @@
-use std::collections::VecDeque;
+use std::ops::ControlFlow;
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
 
 use anyhow::Context;
-use collections::HashMap;
+use collections::{HashMap, HashSet};
 use fs::Fs;
 use gpui::{AsyncAppContext, ModelHandle};
 use language::language_settings::language_settings;
@@ -11,7 +11,7 @@ use language::{Buffer, Diff};
 use lsp::{LanguageServer, LanguageServerId};
 use node_runtime::NodeRuntime;
 use serde::{Deserialize, Serialize};
-use util::paths::DEFAULT_PRETTIER_DIR;
+use util::paths::{PathMatcher, DEFAULT_PRETTIER_DIR};
 
 pub enum Prettier {
     Real(RealPrettier),
@@ -20,7 +20,6 @@ pub enum Prettier {
 }
 
 pub struct RealPrettier {
-    worktree_id: Option<usize>,
     default: bool,
     prettier_dir: PathBuf,
     server: Arc<LanguageServer>,
@@ -28,17 +27,10 @@ pub struct RealPrettier {
 
 #[cfg(any(test, feature = "test-support"))]
 pub struct TestPrettier {
-    worktree_id: Option<usize>,
     prettier_dir: PathBuf,
     default: bool,
 }
 
-#[derive(Debug)]
-pub struct LocateStart {
-    pub worktree_root_path: Arc<Path>,
-    pub starting_path: Arc<Path>,
-}
-
 pub const PRETTIER_SERVER_FILE: &str = "prettier_server.js";
 pub const PRETTIER_SERVER_JS: &str = include_str!("./prettier_server.js");
 const PRETTIER_PACKAGE_NAME: &str = "prettier";
@@ -63,79 +55,112 @@ impl Prettier {
         ".editorconfig",
     ];
 
-    pub async fn locate(
-        starting_path: Option<LocateStart>,
-        fs: Arc<dyn Fs>,
-    ) -> anyhow::Result<PathBuf> {
-        fn is_node_modules(path_component: &std::path::Component<'_>) -> bool {
-            path_component.as_os_str().to_string_lossy() == "node_modules"
+    pub async fn locate_prettier_installation(
+        fs: &dyn Fs,
+        installed_prettiers: &HashSet<PathBuf>,
+        locate_from: &Path,
+    ) -> anyhow::Result<ControlFlow<(), Option<PathBuf>>> {
+        let mut path_to_check = locate_from
+            .components()
+            .take_while(|component| component.as_os_str().to_string_lossy() != "node_modules")
+            .collect::<PathBuf>();
+        if path_to_check != locate_from {
+            log::debug!(
+                "Skipping prettier location for path {path_to_check:?} that is inside node_modules"
+            );
+            return Ok(ControlFlow::Break(()));
+        }
+        let path_to_check_metadata = fs
+            .metadata(&path_to_check)
+            .await
+            .with_context(|| format!("failed to get metadata for initial path {path_to_check:?}"))?
+            .with_context(|| format!("empty metadata for initial path {path_to_check:?}"))?;
+        if !path_to_check_metadata.is_dir {
+            path_to_check.pop();
         }
 
-        let paths_to_check = match starting_path.as_ref() {
-            Some(starting_path) => {
-                let worktree_root = starting_path
-                    .worktree_root_path
-                    .components()
-                    .into_iter()
-                    .take_while(|path_component| !is_node_modules(path_component))
-                    .collect::<PathBuf>();
-                if worktree_root != starting_path.worktree_root_path.as_ref() {
-                    vec![worktree_root]
+        let mut project_path_with_prettier_dependency = None;
+        loop {
+            if installed_prettiers.contains(&path_to_check) {
+                log::debug!("Found prettier path {path_to_check:?} in installed prettiers");
+                return Ok(ControlFlow::Continue(Some(path_to_check)));
+            } else if let Some(package_json_contents) =
+                read_package_json(fs, &path_to_check).await?
+            {
+                if has_prettier_in_package_json(&package_json_contents) {
+                    if has_prettier_in_node_modules(fs, &path_to_check).await? {
+                        log::debug!("Found prettier path {path_to_check:?} in both package.json and node_modules");
+                        return Ok(ControlFlow::Continue(Some(path_to_check)));
+                    } else if project_path_with_prettier_dependency.is_none() {
+                        project_path_with_prettier_dependency = Some(path_to_check.clone());
+                    }
                 } else {
-                    if starting_path.starting_path.as_ref() == Path::new("") {
-                        worktree_root
-                            .parent()
-                            .map(|path| vec![path.to_path_buf()])
-                            .unwrap_or_default()
-                    } else {
-                        let file_to_format = starting_path.starting_path.as_ref();
-                        let mut paths_to_check = VecDeque::new();
-                        let mut current_path = worktree_root;
-                        for path_component in file_to_format.components().into_iter() {
-                            let new_path = current_path.join(path_component);
-                            let old_path = std::mem::replace(&mut current_path, new_path);
-                            paths_to_check.push_front(old_path);
-                            if is_node_modules(&path_component) {
-                                break;
+                    match package_json_contents.get("workspaces") {
+                        Some(serde_json::Value::Array(workspaces)) => {
+                            match &project_path_with_prettier_dependency {
+                                Some(project_path_with_prettier_dependency) => {
+                                    let subproject_path = project_path_with_prettier_dependency.strip_prefix(&path_to_check).expect("traversing path parents, should be able to strip prefix");
+                                    if workspaces.iter().filter_map(|value| {
+                                        if let serde_json::Value::String(s) = value {
+                                            Some(s.clone())
+                                        } else {
+                                            log::warn!("Skipping non-string 'workspaces' value: {value:?}");
+                                            None
+                                        }
+                                    }).any(|workspace_definition| {
+                                        if let Some(path_matcher) = PathMatcher::new(&workspace_definition).ok() {
+                                            path_matcher.is_match(subproject_path)
+                                        } else {
+                                            workspace_definition == subproject_path.to_string_lossy()
+                                        }
+                                    }) {
+                                        anyhow::ensure!(has_prettier_in_node_modules(fs, &path_to_check).await?, "Found prettier path {path_to_check:?} in the workspace root for project in {project_path_with_prettier_dependency:?}, but it's not installed into workspace root's node_modules");
+                                        log::info!("Found prettier path {path_to_check:?} in the workspace root for project in {project_path_with_prettier_dependency:?}");
+                                        return Ok(ControlFlow::Continue(Some(path_to_check)));
+                                    } else {
+                                        log::warn!("Skipping path {path_to_check:?} that has prettier in its 'node_modules' subdirectory, but is not included in its package.json workspaces {workspaces:?}");
+                                    }
+                                }
+                                None => {
+                                    log::warn!("Skipping path {path_to_check:?} that has prettier in its 'node_modules' subdirectory, but has no prettier in its package.json");
+                                }
                             }
-                        }
-                        Vec::from(paths_to_check)
+                        },
+                        Some(unknown) => log::error!("Failed to parse workspaces for {path_to_check:?} from package.json, got {unknown:?}. Skipping."),
+                        None => log::warn!("Skipping path {path_to_check:?} that has no prettier dependency and no workspaces section in its package.json"),
                     }
                 }
             }
-            None => Vec::new(),
-        };
 
-        match find_closest_prettier_dir(paths_to_check, fs.as_ref())
-            .await
-            .with_context(|| format!("finding prettier starting with {starting_path:?}"))?
-        {
-            Some(prettier_dir) => Ok(prettier_dir),
-            None => Ok(DEFAULT_PRETTIER_DIR.to_path_buf()),
+            if !path_to_check.pop() {
+                match project_path_with_prettier_dependency {
+                    Some(closest_prettier_discovered) => {
+                        anyhow::bail!("No prettier found in node_modules for ancestors of {locate_from:?}, but discovered prettier package.json dependency in {closest_prettier_discovered:?}")
+                    }
+                    None => {
+                        log::debug!("Found no prettier in ancestors of {locate_from:?}");
+                        return Ok(ControlFlow::Continue(None));
+                    }
+                }
+            }
         }
     }
 
     #[cfg(any(test, feature = "test-support"))]
     pub async fn start(
-        worktree_id: Option<usize>,
         _: LanguageServerId,
         prettier_dir: PathBuf,
         _: Arc<dyn NodeRuntime>,
         _: AsyncAppContext,
     ) -> anyhow::Result<Self> {
-        Ok(
-            #[cfg(any(test, feature = "test-support"))]
-            Self::Test(TestPrettier {
-                worktree_id,
-                default: prettier_dir == DEFAULT_PRETTIER_DIR.as_path(),
-                prettier_dir,
-            }),
-        )
+        Ok(Self::Test(TestPrettier {
+            default: prettier_dir == DEFAULT_PRETTIER_DIR.as_path(),
+            prettier_dir,
+        }))
     }
 
     #[cfg(not(any(test, feature = "test-support")))]
     pub async fn start(
-        worktree_id: Option<usize>,
         server_id: LanguageServerId,
         prettier_dir: PathBuf,
         node: Arc<dyn NodeRuntime>,
@@ -143,7 +168,7 @@ impl Prettier {
     ) -> anyhow::Result<Self> {
         use lsp::LanguageServerBinary;
 
-        let backgroud = cx.background();
+        let background = cx.background();
         anyhow::ensure!(
             prettier_dir.is_dir(),
             "Prettier dir {prettier_dir:?} is not a directory"
@@ -154,7 +179,7 @@ impl Prettier {
             "no prettier server package found at {prettier_server:?}"
         );
 
-        let node_path = backgroud
+        let node_path = background
             .spawn(async move { node.binary_path().await })
             .await?;
         let server = LanguageServer::new(
@@ -169,12 +194,11 @@ impl Prettier {
             cx,
         )
         .context("prettier server creation")?;
-        let server = backgroud
+        let server = background
             .spawn(server.initialize(None))
             .await
             .context("prettier server initialization")?;
         Ok(Self::Real(RealPrettier {
-            worktree_id,
             server,
             default: prettier_dir == DEFAULT_PRETTIER_DIR.as_path(),
             prettier_dir,
@@ -340,64 +364,61 @@ impl Prettier {
             Self::Test(test_prettier) => &test_prettier.prettier_dir,
         }
     }
-
-    pub fn worktree_id(&self) -> Option<usize> {
-        match self {
-            Self::Real(local) => local.worktree_id,
-            #[cfg(any(test, feature = "test-support"))]
-            Self::Test(test_prettier) => test_prettier.worktree_id,
-        }
-    }
 }
 
-async fn find_closest_prettier_dir(
-    paths_to_check: Vec<PathBuf>,
-    fs: &dyn Fs,
-) -> anyhow::Result<Option<PathBuf>> {
-    for path in paths_to_check {
-        let possible_package_json = path.join("package.json");
-        if let Some(package_json_metadata) = fs
-            .metadata(&possible_package_json)
-            .await
-            .with_context(|| format!("Fetching metadata for {possible_package_json:?}"))?
-        {
-            if !package_json_metadata.is_dir && !package_json_metadata.is_symlink {
-                let package_json_contents = fs
-                    .load(&possible_package_json)
-                    .await
-                    .with_context(|| format!("reading {possible_package_json:?} file contents"))?;
-                if let Ok(json_contents) = serde_json::from_str::<HashMap<String, serde_json::Value>>(
-                    &package_json_contents,
-                ) {
-                    if let Some(serde_json::Value::Object(o)) = json_contents.get("dependencies") {
-                        if o.contains_key(PRETTIER_PACKAGE_NAME) {
-                            return Ok(Some(path));
-                        }
-                    }
-                    if let Some(serde_json::Value::Object(o)) = json_contents.get("devDependencies")
-                    {
-                        if o.contains_key(PRETTIER_PACKAGE_NAME) {
-                            return Ok(Some(path));
-                        }
-                    }
-                }
-            }
-        }
+async fn has_prettier_in_node_modules(fs: &dyn Fs, path: &Path) -> anyhow::Result<bool> {
+    let possible_node_modules_location = path.join("node_modules").join(PRETTIER_PACKAGE_NAME);
+    if let Some(node_modules_location_metadata) = fs
+        .metadata(&possible_node_modules_location)
+        .await
+        .with_context(|| format!("fetching metadata for {possible_node_modules_location:?}"))?
+    {
+        return Ok(node_modules_location_metadata.is_dir);
+    }
+    Ok(false)
+}
 
-        let possible_node_modules_location = path.join("node_modules").join(PRETTIER_PACKAGE_NAME);
-        if let Some(node_modules_location_metadata) = fs
-            .metadata(&possible_node_modules_location)
-            .await
-            .with_context(|| format!("fetching metadata for {possible_node_modules_location:?}"))?
-        {
-            if node_modules_location_metadata.is_dir {
-                return Ok(Some(path));
-            }
+async fn read_package_json(
+    fs: &dyn Fs,
+    path: &Path,
+) -> anyhow::Result<Option<HashMap<String, serde_json::Value>>> {
+    let possible_package_json = path.join("package.json");
+    if let Some(package_json_metadata) = fs
+        .metadata(&possible_package_json)
+        .await
+        .with_context(|| format!("fetching metadata for package json {possible_package_json:?}"))?
+    {
+        if !package_json_metadata.is_dir && !package_json_metadata.is_symlink {
+            let package_json_contents = fs
+                .load(&possible_package_json)
+                .await
+                .with_context(|| format!("reading {possible_package_json:?} file contents"))?;
+            return serde_json::from_str::<HashMap<String, serde_json::Value>>(
+                &package_json_contents,
+            )
+            .map(Some)
+            .with_context(|| format!("parsing {possible_package_json:?} file contents"));
         }
     }
     Ok(None)
 }
 
+fn has_prettier_in_package_json(
+    package_json_contents: &HashMap<String, serde_json::Value>,
+) -> bool {
+    if let Some(serde_json::Value::Object(o)) = package_json_contents.get("dependencies") {
+        if o.contains_key(PRETTIER_PACKAGE_NAME) {
+            return true;
+        }
+    }
+    if let Some(serde_json::Value::Object(o)) = package_json_contents.get("devDependencies") {
+        if o.contains_key(PRETTIER_PACKAGE_NAME) {
+            return true;
+        }
+    }
+    false
+}
+
 enum Format {}
 
 #[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
@@ -436,3 +457,378 @@ impl lsp::request::Request for ClearCache {
     type Result = ();
     const METHOD: &'static str = "prettier/clear_cache";
 }
+
+#[cfg(test)]
+mod tests {
+    use fs::FakeFs;
+    use serde_json::json;
+
+    use super::*;
+
+    #[gpui::test]
+    async fn test_prettier_lookup_finds_nothing(cx: &mut gpui::TestAppContext) {
+        let fs = FakeFs::new(cx.background());
+        fs.insert_tree(
+            "/root",
+            json!({
+                ".config": {
+                    "zed": {
+                        "settings.json": r#"{ "formatter": "auto" }"#,
+                    },
+                },
+                "work": {
+                    "project": {
+                        "src": {
+                            "index.js": "// index.js file contents",
+                        },
+                        "node_modules": {
+                            "expect": {
+                                "build": {
+                                    "print.js": "// print.js file contents",
+                                },
+                                "package.json": r#"{
+                                    "devDependencies": {
+                                        "prettier": "2.5.1"
+                                    }
+                                }"#,
+                            },
+                            "prettier": {
+                                "index.js": "// Dummy prettier package file",
+                            },
+                        },
+                        "package.json": r#"{}"#
+                    },
+                }
+            }),
+        )
+        .await;
+
+        assert!(
+            matches!(
+                Prettier::locate_prettier_installation(
+                    fs.as_ref(),
+                    &HashSet::default(),
+                    Path::new("/root/.config/zed/settings.json"),
+                )
+                .await,
+                Ok(ControlFlow::Continue(None))
+            ),
+            "Should successfully find no prettier for path hierarchy without it"
+        );
+        assert!(
+            matches!(
+                Prettier::locate_prettier_installation(
+                    fs.as_ref(),
+                    &HashSet::default(),
+                    Path::new("/root/work/project/src/index.js")
+                )
+                .await,
+                Ok(ControlFlow::Continue(None))
+            ),
+            "Should successfully find no prettier for path hierarchy that has node_modules with prettier, but no package.json mentions of it"
+        );
+        assert!(
+            matches!(
+                Prettier::locate_prettier_installation(
+                    fs.as_ref(),
+                    &HashSet::default(),
+                    Path::new("/root/work/project/node_modules/expect/build/print.js")
+                )
+                .await,
+                Ok(ControlFlow::Break(()))
+            ),
+            "Should not format files inside node_modules/"
+        );
+    }
+
+    #[gpui::test]
+    async fn test_prettier_lookup_in_simple_npm_projects(cx: &mut gpui::TestAppContext) {
+        let fs = FakeFs::new(cx.background());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "web_blog": {
+                    "node_modules": {
+                        "prettier": {
+                            "index.js": "// Dummy prettier package file",
+                        },
+                        "expect": {
+                            "build": {
+                                "print.js": "// print.js file contents",
+                            },
+                            "package.json": r#"{
+                                "devDependencies": {
+                                    "prettier": "2.5.1"
+                                }
+                            }"#,
+                        },
+                    },
+                    "pages": {
+                        "[slug].tsx": "// [slug].tsx file contents",
+                    },
+                    "package.json": r#"{
+                        "devDependencies": {
+                            "prettier": "2.3.0"
+                        },
+                        "prettier": {
+                            "semi": false,
+                            "printWidth": 80,
+                            "htmlWhitespaceSensitivity": "strict",
+                            "tabWidth": 4
+                        }
+                    }"#
+                }
+            }),
+        )
+        .await;
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/web_blog/pages/[slug].tsx")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Continue(Some(PathBuf::from("/root/web_blog"))),
+            "Should find a preinstalled prettier in the project root"
+        );
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/web_blog/node_modules/expect/build/print.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting node_modules/ contents"
+        );
+    }
+
+    #[gpui::test]
+    async fn test_prettier_lookup_for_not_installed(cx: &mut gpui::TestAppContext) {
+        let fs = FakeFs::new(cx.background());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "work": {
+                    "web_blog": {
+                        "node_modules": {
+                            "expect": {
+                                "build": {
+                                    "print.js": "// print.js file contents",
+                                },
+                                "package.json": r#"{
+                                    "devDependencies": {
+                                        "prettier": "2.5.1"
+                                    }
+                                }"#,
+                            },
+                        },
+                        "pages": {
+                            "[slug].tsx": "// [slug].tsx file contents",
+                        },
+                        "package.json": r#"{
+                            "devDependencies": {
+                                "prettier": "2.3.0"
+                            },
+                            "prettier": {
+                                "semi": false,
+                                "printWidth": 80,
+                                "htmlWhitespaceSensitivity": "strict",
+                                "tabWidth": 4
+                            }
+                        }"#
+                    }
+                }
+            }),
+        )
+        .await;
+
+        match Prettier::locate_prettier_installation(
+            fs.as_ref(),
+            &HashSet::default(),
+            Path::new("/root/work/web_blog/pages/[slug].tsx")
+        )
+        .await {
+            Ok(path) => panic!("Expected to fail for prettier in package.json but not in node_modules found, but got path {path:?}"),
+            Err(e) => {
+                let message = e.to_string();
+                assert!(message.contains("/root/work/web_blog"), "Error message should mention which project had prettier defined");
+            },
+        };
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::from_iter(
+                    [PathBuf::from("/root"), PathBuf::from("/root/work")].into_iter()
+                ),
+                Path::new("/root/work/web_blog/pages/[slug].tsx")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Continue(Some(PathBuf::from("/root/work"))),
+            "Should return closest cached value found without path checks"
+        );
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/web_blog/node_modules/expect/build/print.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting files inside node_modules/"
+        );
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::from_iter(
+                    [PathBuf::from("/root"), PathBuf::from("/root/work")].into_iter()
+                ),
+                Path::new("/root/work/web_blog/node_modules/expect/build/print.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should ignore cache lookup for files inside node_modules/"
+        );
+    }
+
+    #[gpui::test]
+    async fn test_prettier_lookup_in_npm_workspaces(cx: &mut gpui::TestAppContext) {
+        let fs = FakeFs::new(cx.background());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "work": {
+                    "full-stack-foundations": {
+                        "exercises": {
+                            "03.loading": {
+                                "01.problem.loader": {
+                                    "app": {
+                                        "routes": {
+                                            "users+": {
+                                                "$username_+": {
+                                                    "notes.tsx": "// notes.tsx file contents",
+                                                },
+                                            },
+                                        },
+                                    },
+                                    "node_modules": {
+                                        "test.js": "// test.js contents",
+                                    },
+                                    "package.json": r#"{
+                                        "devDependencies": {
+                                            "prettier": "^3.0.3"
+                                        }
+                                    }"#
+                                },
+                            },
+                        },
+                        "package.json": r#"{
+                            "workspaces": ["exercises/*/*", "examples/*"]
+                        }"#,
+                        "node_modules": {
+                            "prettier": {
+                                "index.js": "// Dummy prettier package file",
+                            },
+                        },
+                    },
+                }
+            }),
+        )
+        .await;
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader/app/routes/users+/$username_+/notes.tsx"),
+            ).await.unwrap(),
+            ControlFlow::Continue(Some(PathBuf::from("/root/work/full-stack-foundations"))),
+            "Should ascend to the multi-workspace root and find the prettier there",
+        );
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/full-stack-foundations/node_modules/prettier/index.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting files inside root node_modules/"
+        );
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader/node_modules/test.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting files inside submodule's node_modules/"
+        );
+    }
+
+    #[gpui::test]
+    async fn test_prettier_lookup_in_npm_workspaces_for_not_installed(
+        cx: &mut gpui::TestAppContext,
+    ) {
+        let fs = FakeFs::new(cx.background());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "work": {
+                    "full-stack-foundations": {
+                        "exercises": {
+                            "03.loading": {
+                                "01.problem.loader": {
+                                    "app": {
+                                        "routes": {
+                                            "users+": {
+                                                "$username_+": {
+                                                    "notes.tsx": "// notes.tsx file contents",
+                                                },
+                                            },
+                                        },
+                                    },
+                                    "node_modules": {},
+                                    "package.json": r#"{
+                                        "devDependencies": {
+                                            "prettier": "^3.0.3"
+                                        }
+                                    }"#
+                                },
+                            },
+                        },
+                        "package.json": r#"{
+                            "workspaces": ["exercises/*/*", "examples/*"]
+                        }"#,
+                    },
+                }
+            }),
+        )
+        .await;
+
+        match Prettier::locate_prettier_installation(
+            fs.as_ref(),
+            &HashSet::default(),
+            Path::new("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader/app/routes/users+/$username_+/notes.tsx")
+        )
+        .await {
+            Ok(path) => panic!("Expected to fail for prettier in package.json but not in node_modules found, but got path {path:?}"),
+            Err(e) => {
+                let message = e.to_string();
+                assert!(message.contains("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader"), "Error message should mention which project had prettier defined");
+                assert!(message.contains("/root/work/full-stack-foundations"), "Error message should mention potential candidates without prettier node_modules contents");
+            },
+        };
+    }
+}

crates/prettier/src/prettier_server.js

@@ -1,11 +1,13 @@
-const { Buffer } = require('buffer');
+const { Buffer } = require("buffer");
 const fs = require("fs");
 const path = require("path");
-const { once } = require('events');
+const { once } = require("events");
 
 const prettierContainerPath = process.argv[2];
 if (prettierContainerPath == null || prettierContainerPath.length == 0) {
-    process.stderr.write(`Prettier path argument was not specified or empty.\nUsage: ${process.argv[0]} ${process.argv[1]} prettier/path\n`);
+    process.stderr.write(
+        `Prettier path argument was not specified or empty.\nUsage: ${process.argv[0]} ${process.argv[1]} prettier/path\n`,
+    );
     process.exit(1);
 }
 fs.stat(prettierContainerPath, (err, stats) => {
@@ -19,7 +21,7 @@ fs.stat(prettierContainerPath, (err, stats) => {
         process.exit(1);
     }
 });
-const prettierPath = path.join(prettierContainerPath, 'node_modules/prettier');
+const prettierPath = path.join(prettierContainerPath, "node_modules/prettier");
 
 class Prettier {
     constructor(path, prettier, config) {
@@ -34,7 +36,7 @@ class Prettier {
     let config;
     try {
         prettier = await loadPrettier(prettierPath);
-        config = await prettier.resolveConfig(prettierPath) || {};
+        config = (await prettier.resolveConfig(prettierPath)) || {};
     } catch (e) {
         process.stderr.write(`Failed to load prettier: ${e}\n`);
         process.exit(1);
@@ -42,7 +44,7 @@ class Prettier {
     process.stderr.write(`Prettier at path '${prettierPath}' loaded successfully, config: ${JSON.stringify(config)}\n`);
     process.stdin.resume();
     handleBuffer(new Prettier(prettierPath, prettier, config));
-})()
+})();
 
 async function handleBuffer(prettier) {
     for await (const messageText of readStdin()) {
@@ -54,25 +56,29 @@ async function handleBuffer(prettier) {
             continue;
         }
         // allow concurrent request handling by not `await`ing the message handling promise (async function)
-        handleMessage(message, prettier).catch(e => {
+        handleMessage(message, prettier).catch((e) => {
             const errorMessage = message;
             if ((errorMessage.params || {}).text !== undefined) {
                 errorMessage.params.text = "..snip..";
             }
-            sendResponse({ id: message.id, ...makeError(`error during message '${JSON.stringify(errorMessage)}' handling: ${e}`) }); });
+            sendResponse({
+                id: message.id,
+                ...makeError(`error during message '${JSON.stringify(errorMessage)}' handling: ${e}`),
+            });
+        });
     }
 }
 
 const headerSeparator = "\r\n";
-const contentLengthHeaderName = 'Content-Length';
+const contentLengthHeaderName = "Content-Length";
 
 async function* readStdin() {
     let buffer = Buffer.alloc(0);
     let streamEnded = false;
-    process.stdin.on('end', () => {
+    process.stdin.on("end", () => {
         streamEnded = true;
     });
-    process.stdin.on('data', (data) => {
+    process.stdin.on("data", (data) => {
         buffer = Buffer.concat([buffer, data]);
     });
 
@@ -80,7 +86,7 @@ async function* readStdin() {
         sendResponse(makeError(errorMessage));
         buffer = Buffer.alloc(0);
         messageLength = null;
-        await once(process.stdin, 'readable');
+        await once(process.stdin, "readable");
         streamEnded = false;
     }
 
@@ -91,20 +97,25 @@ async function* readStdin() {
             if (messageLength === null) {
                 while (buffer.indexOf(`${headerSeparator}${headerSeparator}`) === -1) {
                     if (streamEnded) {
-                        await handleStreamEnded('Unexpected end of stream: headers not found');
+                        await handleStreamEnded("Unexpected end of stream: headers not found");
                         continue main_loop;
                     } else if (buffer.length > contentLengthHeaderName.length * 10) {
-                        await handleStreamEnded(`Unexpected stream of bytes: no headers end found after ${buffer.length} bytes of input`);
+                        await handleStreamEnded(
+                            `Unexpected stream of bytes: no headers end found after ${buffer.length} bytes of input`,
+                        );
                         continue main_loop;
                     }
-                    await once(process.stdin, 'readable');
+                    await once(process.stdin, "readable");
                 }
-                const headers = buffer.subarray(0, buffer.indexOf(`${headerSeparator}${headerSeparator}`)).toString('ascii');
-                const contentLengthHeader = headers.split(headerSeparator)
-                    .map(header => header.split(':'))
-                    .filter(header => header[2] === undefined)
-                    .filter(header => (header[1] || '').length > 0)
-                    .find(header => (header[0] || '').trim() === contentLengthHeaderName);
+                const headers = buffer
+                    .subarray(0, buffer.indexOf(`${headerSeparator}${headerSeparator}`))
+                    .toString("ascii");
+                const contentLengthHeader = headers
+                    .split(headerSeparator)
+                    .map((header) => header.split(":"))
+                    .filter((header) => header[2] === undefined)
+                    .filter((header) => (header[1] || "").length > 0)
+                    .find((header) => (header[0] || "").trim() === contentLengthHeaderName);
                 const contentLength = (contentLengthHeader || [])[1];
                 if (contentLength === undefined) {
                     await handleStreamEnded(`Missing or incorrect ${contentLengthHeaderName} header: ${headers}`);
@@ -114,13 +125,14 @@ async function* readStdin() {
                 messageLength = parseInt(contentLength, 10);
             }
 
-            while (buffer.length < (headersLength + messageLength)) {
+            while (buffer.length < headersLength + messageLength) {
                 if (streamEnded) {
                     await handleStreamEnded(
-                        `Unexpected end of stream: buffer length ${buffer.length} does not match expected header length ${headersLength} + body length ${messageLength}`);
+                        `Unexpected end of stream: buffer length ${buffer.length} does not match expected header length ${headersLength} + body length ${messageLength}`,
+                    );
                     continue main_loop;
                 }
-                await once(process.stdin, 'readable');
+                await once(process.stdin, "readable");
             }
 
             const messageEnd = headersLength + messageLength;
@@ -128,12 +140,12 @@ async function* readStdin() {
             buffer = buffer.subarray(messageEnd);
             headersLength = null;
             messageLength = null;
-            yield message.toString('utf8');
+            yield message.toString("utf8");
         }
     } catch (e) {
         sendResponse(makeError(`Error reading stdin: ${e}`));
     } finally {
-        process.stdin.off('data', () => { });
+        process.stdin.off("data", () => {});
     }
 }
 
@@ -146,7 +158,7 @@ async function handleMessage(message, prettier) {
         throw new Error(`Message id is undefined: ${JSON.stringify(message)}`);
     }
 
-    if (method === 'prettier/format') {
+    if (method === "prettier/format") {
         if (params === undefined || params.text === undefined) {
             throw new Error(`Message params.text is undefined: ${JSON.stringify(message)}`);
         }
@@ -156,7 +168,7 @@ async function handleMessage(message, prettier) {
 
         let resolvedConfig = {};
         if (params.options.filepath !== undefined) {
-            resolvedConfig = await prettier.prettier.resolveConfig(params.options.filepath) || {};
+            resolvedConfig = (await prettier.prettier.resolveConfig(params.options.filepath)) || {};
         }
 
         const options = {
@@ -164,21 +176,25 @@ async function handleMessage(message, prettier) {
             ...resolvedConfig,
             parser: params.options.parser,
             plugins: params.options.plugins,
-            path: params.options.filepath
+            path: params.options.filepath,
         };
-        process.stderr.write(`Resolved config: ${JSON.stringify(resolvedConfig)}, will format file '${params.options.filepath || ''}' with options: ${JSON.stringify(options)}\n`);
+        process.stderr.write(
+            `Resolved config: ${JSON.stringify(resolvedConfig)}, will format file '${
+                params.options.filepath || ""
+            }' with options: ${JSON.stringify(options)}\n`,
+        );
         const formattedText = await prettier.prettier.format(params.text, options);
         sendResponse({ id, result: { text: formattedText } });
-    } else if (method === 'prettier/clear_cache') {
+    } else if (method === "prettier/clear_cache") {
         prettier.prettier.clearConfigCache();
-        prettier.config = await prettier.prettier.resolveConfig(prettier.path) || {};
+        prettier.config = (await prettier.prettier.resolveConfig(prettier.path)) || {};
         sendResponse({ id, result: null });
-    } else if (method === 'initialize') {
+    } else if (method === "initialize") {
         sendResponse({
-            id: id || 0,
+            id,
             result: {
-                "capabilities": {}
-            }
+                capabilities: {},
+            },
         });
     } else {
         throw new Error(`Unknown method: ${method}`);
@@ -188,18 +204,20 @@ async function handleMessage(message, prettier) {
 function makeError(message) {
     return {
         error: {
-            "code": -32600, // invalid request code
+            code: -32600, // invalid request code
             message,
-        }
+        },
     };
 }
 
 function sendResponse(response) {
     const responsePayloadString = JSON.stringify({
         jsonrpc: "2.0",
-        ...response
+        ...response,
     });
-    const headers = `${contentLengthHeaderName}: ${Buffer.byteLength(responsePayloadString)}${headerSeparator}${headerSeparator}`;
+    const headers = `${contentLengthHeaderName}: ${Buffer.byteLength(
+        responsePayloadString,
+    )}${headerSeparator}${headerSeparator}`;
     process.stdout.write(headers + responsePayloadString);
 }
 

crates/prettier2/src/prettier2.rs

@@ -1,5 +1,5 @@
 use anyhow::Context;
-use collections::HashMap;
+use collections::{HashMap, HashSet};
 use fs2::Fs;
 use gpui2::{AsyncAppContext, Model};
 use language2::{language_settings::language_settings, Buffer, Diff};
@@ -7,11 +7,11 @@ use lsp2::{LanguageServer, LanguageServerId};
 use node_runtime::NodeRuntime;
 use serde::{Deserialize, Serialize};
 use std::{
-    collections::VecDeque,
+    ops::ControlFlow,
     path::{Path, PathBuf},
     sync::Arc,
 };
-use util::paths::DEFAULT_PRETTIER_DIR;
+use util::paths::{PathMatcher, DEFAULT_PRETTIER_DIR};
 
 pub enum Prettier {
     Real(RealPrettier),
@@ -20,7 +20,6 @@ pub enum Prettier {
 }
 
 pub struct RealPrettier {
-    worktree_id: Option<usize>,
     default: bool,
     prettier_dir: PathBuf,
     server: Arc<LanguageServer>,
@@ -28,17 +27,10 @@ pub struct RealPrettier {
 
 #[cfg(any(test, feature = "test-support"))]
 pub struct TestPrettier {
-    worktree_id: Option<usize>,
     prettier_dir: PathBuf,
     default: bool,
 }
 
-#[derive(Debug)]
-pub struct LocateStart {
-    pub worktree_root_path: Arc<Path>,
-    pub starting_path: Arc<Path>,
-}
-
 pub const PRETTIER_SERVER_FILE: &str = "prettier_server.js";
 pub const PRETTIER_SERVER_JS: &str = include_str!("./prettier_server.js");
 const PRETTIER_PACKAGE_NAME: &str = "prettier";
@@ -63,79 +55,112 @@ impl Prettier {
         ".editorconfig",
     ];
 
-    pub async fn locate(
-        starting_path: Option<LocateStart>,
-        fs: Arc<dyn Fs>,
-    ) -> anyhow::Result<PathBuf> {
-        fn is_node_modules(path_component: &std::path::Component<'_>) -> bool {
-            path_component.as_os_str().to_string_lossy() == "node_modules"
+    pub async fn locate_prettier_installation(
+        fs: &dyn Fs,
+        installed_prettiers: &HashSet<PathBuf>,
+        locate_from: &Path,
+    ) -> anyhow::Result<ControlFlow<(), Option<PathBuf>>> {
+        let mut path_to_check = locate_from
+            .components()
+            .take_while(|component| component.as_os_str().to_string_lossy() != "node_modules")
+            .collect::<PathBuf>();
+        if path_to_check != locate_from {
+            log::debug!(
+                "Skipping prettier location for path {path_to_check:?} that is inside node_modules"
+            );
+            return Ok(ControlFlow::Break(()));
+        }
+        let path_to_check_metadata = fs
+            .metadata(&path_to_check)
+            .await
+            .with_context(|| format!("failed to get metadata for initial path {path_to_check:?}"))?
+            .with_context(|| format!("empty metadata for initial path {path_to_check:?}"))?;
+        if !path_to_check_metadata.is_dir {
+            path_to_check.pop();
         }
 
-        let paths_to_check = match starting_path.as_ref() {
-            Some(starting_path) => {
-                let worktree_root = starting_path
-                    .worktree_root_path
-                    .components()
-                    .into_iter()
-                    .take_while(|path_component| !is_node_modules(path_component))
-                    .collect::<PathBuf>();
-                if worktree_root != starting_path.worktree_root_path.as_ref() {
-                    vec![worktree_root]
+        let mut project_path_with_prettier_dependency = None;
+        loop {
+            if installed_prettiers.contains(&path_to_check) {
+                log::debug!("Found prettier path {path_to_check:?} in installed prettiers");
+                return Ok(ControlFlow::Continue(Some(path_to_check)));
+            } else if let Some(package_json_contents) =
+                read_package_json(fs, &path_to_check).await?
+            {
+                if has_prettier_in_package_json(&package_json_contents) {
+                    if has_prettier_in_node_modules(fs, &path_to_check).await? {
+                        log::debug!("Found prettier path {path_to_check:?} in both package.json and node_modules");
+                        return Ok(ControlFlow::Continue(Some(path_to_check)));
+                    } else if project_path_with_prettier_dependency.is_none() {
+                        project_path_with_prettier_dependency = Some(path_to_check.clone());
+                    }
                 } else {
-                    if starting_path.starting_path.as_ref() == Path::new("") {
-                        worktree_root
-                            .parent()
-                            .map(|path| vec![path.to_path_buf()])
-                            .unwrap_or_default()
-                    } else {
-                        let file_to_format = starting_path.starting_path.as_ref();
-                        let mut paths_to_check = VecDeque::new();
-                        let mut current_path = worktree_root;
-                        for path_component in file_to_format.components().into_iter() {
-                            let new_path = current_path.join(path_component);
-                            let old_path = std::mem::replace(&mut current_path, new_path);
-                            paths_to_check.push_front(old_path);
-                            if is_node_modules(&path_component) {
-                                break;
-                            }
+                    match package_json_contents.get("workspaces") {
+                            Some(serde_json::Value::Array(workspaces)) => {
+                                match &project_path_with_prettier_dependency {
+                                    Some(project_path_with_prettier_dependency) => {
+                                        let subproject_path = project_path_with_prettier_dependency.strip_prefix(&path_to_check).expect("traversing path parents, should be able to strip prefix");
+                                        if workspaces.iter().filter_map(|value| {
+                                            if let serde_json::Value::String(s) = value {
+                                                Some(s.clone())
+                                            } else {
+                                                log::warn!("Skipping non-string 'workspaces' value: {value:?}");
+                                                None
+                                            }
+                                        }).any(|workspace_definition| {
+                                            if let Some(path_matcher) = PathMatcher::new(&workspace_definition).ok() {
+                                                path_matcher.is_match(subproject_path)
+                                            } else {
+                                                workspace_definition == subproject_path.to_string_lossy()
+                                            }
+                                        }) {
+                                            anyhow::ensure!(has_prettier_in_node_modules(fs, &path_to_check).await?, "Found prettier path {path_to_check:?} in the workspace root for project in {project_path_with_prettier_dependency:?}, but it's not installed into workspace root's node_modules");
+                                            log::info!("Found prettier path {path_to_check:?} in the workspace root for project in {project_path_with_prettier_dependency:?}");
+                                            return Ok(ControlFlow::Continue(Some(path_to_check)));
+                                        } else {
+                                            log::warn!("Skipping path {path_to_check:?} that has prettier in its 'node_modules' subdirectory, but is not included in its package.json workspaces {workspaces:?}");
+                                        }
+                                    }
+                                    None => {
+                                        log::warn!("Skipping path {path_to_check:?} that has prettier in its 'node_modules' subdirectory, but has no prettier in its package.json");
+                                    }
+                                }
+                            },
+                            Some(unknown) => log::error!("Failed to parse workspaces for {path_to_check:?} from package.json, got {unknown:?}. Skipping."),
+                            None => log::warn!("Skipping path {path_to_check:?} that has no prettier dependency and no workspaces section in its package.json"),
                         }
-                        Vec::from(paths_to_check)
+                }
+            }
+
+            if !path_to_check.pop() {
+                match project_path_with_prettier_dependency {
+                    Some(closest_prettier_discovered) => {
+                        anyhow::bail!("No prettier found in node_modules for ancestors of {locate_from:?}, but discovered prettier package.json dependency in {closest_prettier_discovered:?}")
+                    }
+                    None => {
+                        log::debug!("Found no prettier in ancestors of {locate_from:?}");
+                        return Ok(ControlFlow::Continue(None));
                     }
                 }
             }
-            None => Vec::new(),
-        };
-
-        match find_closest_prettier_dir(paths_to_check, fs.as_ref())
-            .await
-            .with_context(|| format!("finding prettier starting with {starting_path:?}"))?
-        {
-            Some(prettier_dir) => Ok(prettier_dir),
-            None => Ok(DEFAULT_PRETTIER_DIR.to_path_buf()),
         }
     }
 
     #[cfg(any(test, feature = "test-support"))]
     pub async fn start(
-        worktree_id: Option<usize>,
         _: LanguageServerId,
         prettier_dir: PathBuf,
         _: Arc<dyn NodeRuntime>,
         _: AsyncAppContext,
     ) -> anyhow::Result<Self> {
-        Ok(
-            #[cfg(any(test, feature = "test-support"))]
-            Self::Test(TestPrettier {
-                worktree_id,
-                default: prettier_dir == DEFAULT_PRETTIER_DIR.as_path(),
-                prettier_dir,
-            }),
-        )
+        Ok(Self::Test(TestPrettier {
+            default: prettier_dir == DEFAULT_PRETTIER_DIR.as_path(),
+            prettier_dir,
+        }))
     }
 
     #[cfg(not(any(test, feature = "test-support")))]
     pub async fn start(
-        worktree_id: Option<usize>,
         server_id: LanguageServerId,
         prettier_dir: PathBuf,
         node: Arc<dyn NodeRuntime>,
@@ -174,7 +199,6 @@ impl Prettier {
             .await
             .context("prettier server initialization")?;
         Ok(Self::Real(RealPrettier {
-            worktree_id,
             server,
             default: prettier_dir == DEFAULT_PRETTIER_DIR.as_path(),
             prettier_dir,
@@ -370,64 +394,61 @@ impl Prettier {
             Self::Test(test_prettier) => &test_prettier.prettier_dir,
         }
     }
-
-    pub fn worktree_id(&self) -> Option<usize> {
-        match self {
-            Self::Real(local) => local.worktree_id,
-            #[cfg(any(test, feature = "test-support"))]
-            Self::Test(test_prettier) => test_prettier.worktree_id,
-        }
-    }
 }
 
-async fn find_closest_prettier_dir(
-    paths_to_check: Vec<PathBuf>,
-    fs: &dyn Fs,
-) -> anyhow::Result<Option<PathBuf>> {
-    for path in paths_to_check {
-        let possible_package_json = path.join("package.json");
-        if let Some(package_json_metadata) = fs
-            .metadata(&possible_package_json)
-            .await
-            .with_context(|| format!("Fetching metadata for {possible_package_json:?}"))?
-        {
-            if !package_json_metadata.is_dir && !package_json_metadata.is_symlink {
-                let package_json_contents = fs
-                    .load(&possible_package_json)
-                    .await
-                    .with_context(|| format!("reading {possible_package_json:?} file contents"))?;
-                if let Ok(json_contents) = serde_json::from_str::<HashMap<String, serde_json::Value>>(
-                    &package_json_contents,
-                ) {
-                    if let Some(serde_json::Value::Object(o)) = json_contents.get("dependencies") {
-                        if o.contains_key(PRETTIER_PACKAGE_NAME) {
-                            return Ok(Some(path));
-                        }
-                    }
-                    if let Some(serde_json::Value::Object(o)) = json_contents.get("devDependencies")
-                    {
-                        if o.contains_key(PRETTIER_PACKAGE_NAME) {
-                            return Ok(Some(path));
-                        }
-                    }
-                }
-            }
-        }
+async fn has_prettier_in_node_modules(fs: &dyn Fs, path: &Path) -> anyhow::Result<bool> {
+    let possible_node_modules_location = path.join("node_modules").join(PRETTIER_PACKAGE_NAME);
+    if let Some(node_modules_location_metadata) = fs
+        .metadata(&possible_node_modules_location)
+        .await
+        .with_context(|| format!("fetching metadata for {possible_node_modules_location:?}"))?
+    {
+        return Ok(node_modules_location_metadata.is_dir);
+    }
+    Ok(false)
+}
 
-        let possible_node_modules_location = path.join("node_modules").join(PRETTIER_PACKAGE_NAME);
-        if let Some(node_modules_location_metadata) = fs
-            .metadata(&possible_node_modules_location)
-            .await
-            .with_context(|| format!("fetching metadata for {possible_node_modules_location:?}"))?
-        {
-            if node_modules_location_metadata.is_dir {
-                return Ok(Some(path));
-            }
+async fn read_package_json(
+    fs: &dyn Fs,
+    path: &Path,
+) -> anyhow::Result<Option<HashMap<String, serde_json::Value>>> {
+    let possible_package_json = path.join("package.json");
+    if let Some(package_json_metadata) = fs
+        .metadata(&possible_package_json)
+        .await
+        .with_context(|| format!("fetching metadata for package json {possible_package_json:?}"))?
+    {
+        if !package_json_metadata.is_dir && !package_json_metadata.is_symlink {
+            let package_json_contents = fs
+                .load(&possible_package_json)
+                .await
+                .with_context(|| format!("reading {possible_package_json:?} file contents"))?;
+            return serde_json::from_str::<HashMap<String, serde_json::Value>>(
+                &package_json_contents,
+            )
+            .map(Some)
+            .with_context(|| format!("parsing {possible_package_json:?} file contents"));
         }
     }
     Ok(None)
 }
 
+fn has_prettier_in_package_json(
+    package_json_contents: &HashMap<String, serde_json::Value>,
+) -> bool {
+    if let Some(serde_json::Value::Object(o)) = package_json_contents.get("dependencies") {
+        if o.contains_key(PRETTIER_PACKAGE_NAME) {
+            return true;
+        }
+    }
+    if let Some(serde_json::Value::Object(o)) = package_json_contents.get("devDependencies") {
+        if o.contains_key(PRETTIER_PACKAGE_NAME) {
+            return true;
+        }
+    }
+    false
+}
+
 enum Format {}
 
 #[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
@@ -466,3 +487,379 @@ impl lsp2::request::Request for ClearCache {
     type Result = ();
     const METHOD: &'static str = "prettier/clear_cache";
 }
+
+#[cfg(test)]
+mod tests {
+    use fs2::FakeFs;
+    use serde_json::json;
+
+    use super::*;
+
+    #[gpui2::test]
+    async fn test_prettier_lookup_finds_nothing(cx: &mut gpui2::TestAppContext) {
+        let fs = FakeFs::new(cx.executor().clone());
+        fs.insert_tree(
+            "/root",
+            json!({
+                ".config": {
+                    "zed": {
+                        "settings.json": r#"{ "formatter": "auto" }"#,
+                    },
+                },
+                "work": {
+                    "project": {
+                        "src": {
+                            "index.js": "// index.js file contents",
+                        },
+                        "node_modules": {
+                            "expect": {
+                                "build": {
+                                    "print.js": "// print.js file contents",
+                                },
+                                "package.json": r#"{
+                                    "devDependencies": {
+                                        "prettier": "2.5.1"
+                                    }
+                                }"#,
+                            },
+                            "prettier": {
+                                "index.js": "// Dummy prettier package file",
+                            },
+                        },
+                        "package.json": r#"{}"#
+                    },
+                }
+            }),
+        )
+        .await;
+
+        assert!(
+            matches!(
+                Prettier::locate_prettier_installation(
+                    fs.as_ref(),
+                    &HashSet::default(),
+                    Path::new("/root/.config/zed/settings.json"),
+                )
+                .await,
+                Ok(ControlFlow::Continue(None))
+            ),
+            "Should successfully find no prettier for path hierarchy without it"
+        );
+        assert!(
+            matches!(
+                Prettier::locate_prettier_installation(
+                    fs.as_ref(),
+                    &HashSet::default(),
+                    Path::new("/root/work/project/src/index.js")
+                )
+                .await,
+                Ok(ControlFlow::Continue(None))
+            ),
+            "Should successfully find no prettier for path hierarchy that has node_modules with prettier, but no package.json mentions of it"
+        );
+        assert!(
+            matches!(
+                Prettier::locate_prettier_installation(
+                    fs.as_ref(),
+                    &HashSet::default(),
+                    Path::new("/root/work/project/node_modules/expect/build/print.js")
+                )
+                .await,
+                Ok(ControlFlow::Break(()))
+            ),
+            "Should not format files inside node_modules/"
+        );
+    }
+
+    #[gpui2::test]
+    async fn test_prettier_lookup_in_simple_npm_projects(cx: &mut gpui2::TestAppContext) {
+        let fs = FakeFs::new(cx.executor().clone());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "web_blog": {
+                    "node_modules": {
+                        "prettier": {
+                            "index.js": "// Dummy prettier package file",
+                        },
+                        "expect": {
+                            "build": {
+                                "print.js": "// print.js file contents",
+                            },
+                            "package.json": r#"{
+                                "devDependencies": {
+                                    "prettier": "2.5.1"
+                                }
+                            }"#,
+                        },
+                    },
+                    "pages": {
+                        "[slug].tsx": "// [slug].tsx file contents",
+                    },
+                    "package.json": r#"{
+                        "devDependencies": {
+                            "prettier": "2.3.0"
+                        },
+                        "prettier": {
+                            "semi": false,
+                            "printWidth": 80,
+                            "htmlWhitespaceSensitivity": "strict",
+                            "tabWidth": 4
+                        }
+                    }"#
+                }
+            }),
+        )
+        .await;
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/web_blog/pages/[slug].tsx")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Continue(Some(PathBuf::from("/root/web_blog"))),
+            "Should find a preinstalled prettier in the project root"
+        );
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/web_blog/node_modules/expect/build/print.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting node_modules/ contents"
+        );
+    }
+
+    #[gpui2::test]
+    async fn test_prettier_lookup_for_not_installed(cx: &mut gpui2::TestAppContext) {
+        let fs = FakeFs::new(cx.executor().clone());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "work": {
+                    "web_blog": {
+                        "node_modules": {
+                            "expect": {
+                                "build": {
+                                    "print.js": "// print.js file contents",
+                                },
+                                "package.json": r#"{
+                                    "devDependencies": {
+                                        "prettier": "2.5.1"
+                                    }
+                                }"#,
+                            },
+                        },
+                        "pages": {
+                            "[slug].tsx": "// [slug].tsx file contents",
+                        },
+                        "package.json": r#"{
+                            "devDependencies": {
+                                "prettier": "2.3.0"
+                            },
+                            "prettier": {
+                                "semi": false,
+                                "printWidth": 80,
+                                "htmlWhitespaceSensitivity": "strict",
+                                "tabWidth": 4
+                            }
+                        }"#
+                    }
+                }
+            }),
+        )
+        .await;
+
+        match Prettier::locate_prettier_installation(
+            fs.as_ref(),
+            &HashSet::default(),
+            Path::new("/root/work/web_blog/pages/[slug].tsx")
+        )
+        .await {
+            Ok(path) => panic!("Expected to fail for prettier in package.json but not in node_modules found, but got path {path:?}"),
+            Err(e) => {
+                let message = e.to_string();
+                assert!(message.contains("/root/work/web_blog"), "Error message should mention which project had prettier defined");
+            },
+        };
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::from_iter(
+                    [PathBuf::from("/root"), PathBuf::from("/root/work")].into_iter()
+                ),
+                Path::new("/root/work/web_blog/pages/[slug].tsx")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Continue(Some(PathBuf::from("/root/work"))),
+            "Should return closest cached value found without path checks"
+        );
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/web_blog/node_modules/expect/build/print.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting files inside node_modules/"
+        );
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::from_iter(
+                    [PathBuf::from("/root"), PathBuf::from("/root/work")].into_iter()
+                ),
+                Path::new("/root/work/web_blog/node_modules/expect/build/print.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should ignore cache lookup for files inside node_modules/"
+        );
+    }
+
+    #[gpui2::test]
+    async fn test_prettier_lookup_in_npm_workspaces(cx: &mut gpui2::TestAppContext) {
+        let fs = FakeFs::new(cx.executor().clone());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "work": {
+                    "full-stack-foundations": {
+                        "exercises": {
+                            "03.loading": {
+                                "01.problem.loader": {
+                                    "app": {
+                                        "routes": {
+                                            "users+": {
+                                                "$username_+": {
+                                                    "notes.tsx": "// notes.tsx file contents",
+                                                },
+                                            },
+                                        },
+                                    },
+                                    "node_modules": {
+                                        "test.js": "// test.js contents",
+                                    },
+                                    "package.json": r#"{
+                                        "devDependencies": {
+                                            "prettier": "^3.0.3"
+                                        }
+                                    }"#
+                                },
+                            },
+                        },
+                        "package.json": r#"{
+                            "workspaces": ["exercises/*/*", "examples/*"]
+                        }"#,
+                        "node_modules": {
+                            "prettier": {
+                                "index.js": "// Dummy prettier package file",
+                            },
+                        },
+                    },
+                }
+            }),
+        )
+        .await;
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader/app/routes/users+/$username_+/notes.tsx"),
+            ).await.unwrap(),
+            ControlFlow::Continue(Some(PathBuf::from("/root/work/full-stack-foundations"))),
+            "Should ascend to the multi-workspace root and find the prettier there",
+        );
+
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/full-stack-foundations/node_modules/prettier/index.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting files inside root node_modules/"
+        );
+        assert_eq!(
+            Prettier::locate_prettier_installation(
+                fs.as_ref(),
+                &HashSet::default(),
+                Path::new("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader/node_modules/test.js")
+            )
+            .await
+            .unwrap(),
+            ControlFlow::Break(()),
+            "Should not allow formatting files inside submodule's node_modules/"
+        );
+    }
+
+    #[gpui2::test]
+    async fn test_prettier_lookup_in_npm_workspaces_for_not_installed(
+        cx: &mut gpui2::TestAppContext,
+    ) {
+        let fs = FakeFs::new(cx.executor().clone());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "work": {
+                    "full-stack-foundations": {
+                        "exercises": {
+                            "03.loading": {
+                                "01.problem.loader": {
+                                    "app": {
+                                        "routes": {
+                                            "users+": {
+                                                "$username_+": {
+                                                    "notes.tsx": "// notes.tsx file contents",
+                                                },
+                                            },
+                                        },
+                                    },
+                                    "node_modules": {},
+                                    "package.json": r#"{
+                                        "devDependencies": {
+                                            "prettier": "^3.0.3"
+                                        }
+                                    }"#
+                                },
+                            },
+                        },
+                        "package.json": r#"{
+                            "workspaces": ["exercises/*/*", "examples/*"]
+                        }"#,
+                    },
+                }
+            }),
+        )
+        .await;
+
+        match Prettier::locate_prettier_installation(
+            fs.as_ref(),
+            &HashSet::default(),
+            Path::new("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader/app/routes/users+/$username_+/notes.tsx")
+        )
+        .await {
+            Ok(path) => panic!("Expected to fail for prettier in package.json but not in node_modules found, but got path {path:?}"),
+            Err(e) => {
+                let message = e.to_string();
+                assert!(message.contains("/root/work/full-stack-foundations/exercises/03.loading/01.problem.loader"), "Error message should mention which project had prettier defined");
+                assert!(message.contains("/root/work/full-stack-foundations"), "Error message should mention potential candidates without prettier node_modules contents");
+            },
+        };
+    }
+}

crates/prettier2/src/prettier_server.js

@@ -1,11 +1,13 @@
-const { Buffer } = require('buffer');
+const { Buffer } = require("buffer");
 const fs = require("fs");
 const path = require("path");
-const { once } = require('events');
+const { once } = require("events");
 
 const prettierContainerPath = process.argv[2];
 if (prettierContainerPath == null || prettierContainerPath.length == 0) {
-    process.stderr.write(`Prettier path argument was not specified or empty.\nUsage: ${process.argv[0]} ${process.argv[1]} prettier/path\n`);
+    process.stderr.write(
+        `Prettier path argument was not specified or empty.\nUsage: ${process.argv[0]} ${process.argv[1]} prettier/path\n`,
+    );
     process.exit(1);
 }
 fs.stat(prettierContainerPath, (err, stats) => {
@@ -19,7 +21,7 @@ fs.stat(prettierContainerPath, (err, stats) => {
         process.exit(1);
     }
 });
-const prettierPath = path.join(prettierContainerPath, 'node_modules/prettier');
+const prettierPath = path.join(prettierContainerPath, "node_modules/prettier");
 
 class Prettier {
     constructor(path, prettier, config) {
@@ -34,7 +36,7 @@ class Prettier {
     let config;
     try {
         prettier = await loadPrettier(prettierPath);
-        config = await prettier.resolveConfig(prettierPath) || {};
+        config = (await prettier.resolveConfig(prettierPath)) || {};
     } catch (e) {
         process.stderr.write(`Failed to load prettier: ${e}\n`);
         process.exit(1);
@@ -42,7 +44,7 @@ class Prettier {
     process.stderr.write(`Prettier at path '${prettierPath}' loaded successfully, config: ${JSON.stringify(config)}\n`);
     process.stdin.resume();
     handleBuffer(new Prettier(prettierPath, prettier, config));
-})()
+})();
 
 async function handleBuffer(prettier) {
     for await (const messageText of readStdin()) {
@@ -54,22 +56,29 @@ async function handleBuffer(prettier) {
             continue;
         }
         // allow concurrent request handling by not `await`ing the message handling promise (async function)
-        handleMessage(message, prettier).catch(e => {
-            sendResponse({ id: message.id, ...makeError(`error during message handling: ${e}`) });
+        handleMessage(message, prettier).catch((e) => {
+            const errorMessage = message;
+            if ((errorMessage.params || {}).text !== undefined) {
+                errorMessage.params.text = "..snip..";
+            }
+            sendResponse({
+                id: message.id,
+                ...makeError(`error during message '${JSON.stringify(errorMessage)}' handling: ${e}`),
+            });
         });
     }
 }
 
 const headerSeparator = "\r\n";
-const contentLengthHeaderName = 'Content-Length';
+const contentLengthHeaderName = "Content-Length";
 
 async function* readStdin() {
     let buffer = Buffer.alloc(0);
     let streamEnded = false;
-    process.stdin.on('end', () => {
+    process.stdin.on("end", () => {
         streamEnded = true;
     });
-    process.stdin.on('data', (data) => {
+    process.stdin.on("data", (data) => {
         buffer = Buffer.concat([buffer, data]);
     });
 
@@ -77,7 +86,7 @@ async function* readStdin() {
         sendResponse(makeError(errorMessage));
         buffer = Buffer.alloc(0);
         messageLength = null;
-        await once(process.stdin, 'readable');
+        await once(process.stdin, "readable");
         streamEnded = false;
     }
 
@@ -88,20 +97,25 @@ async function* readStdin() {
             if (messageLength === null) {
                 while (buffer.indexOf(`${headerSeparator}${headerSeparator}`) === -1) {
                     if (streamEnded) {
-                        await handleStreamEnded('Unexpected end of stream: headers not found');
+                        await handleStreamEnded("Unexpected end of stream: headers not found");
                         continue main_loop;
                     } else if (buffer.length > contentLengthHeaderName.length * 10) {
-                        await handleStreamEnded(`Unexpected stream of bytes: no headers end found after ${buffer.length} bytes of input`);
+                        await handleStreamEnded(
+                            `Unexpected stream of bytes: no headers end found after ${buffer.length} bytes of input`,
+                        );
                         continue main_loop;
                     }
-                    await once(process.stdin, 'readable');
+                    await once(process.stdin, "readable");
                 }
-                const headers = buffer.subarray(0, buffer.indexOf(`${headerSeparator}${headerSeparator}`)).toString('ascii');
-                const contentLengthHeader = headers.split(headerSeparator)
-                    .map(header => header.split(':'))
-                    .filter(header => header[2] === undefined)
-                    .filter(header => (header[1] || '').length > 0)
-                    .find(header => (header[0] || '').trim() === contentLengthHeaderName);
+                const headers = buffer
+                    .subarray(0, buffer.indexOf(`${headerSeparator}${headerSeparator}`))
+                    .toString("ascii");
+                const contentLengthHeader = headers
+                    .split(headerSeparator)
+                    .map((header) => header.split(":"))
+                    .filter((header) => header[2] === undefined)
+                    .filter((header) => (header[1] || "").length > 0)
+                    .find((header) => (header[0] || "").trim() === contentLengthHeaderName);
                 const contentLength = (contentLengthHeader || [])[1];
                 if (contentLength === undefined) {
                     await handleStreamEnded(`Missing or incorrect ${contentLengthHeaderName} header: ${headers}`);
@@ -111,13 +125,14 @@ async function* readStdin() {
                 messageLength = parseInt(contentLength, 10);
             }
 
-            while (buffer.length < (headersLength + messageLength)) {
+            while (buffer.length < headersLength + messageLength) {
                 if (streamEnded) {
                     await handleStreamEnded(
-                        `Unexpected end of stream: buffer length ${buffer.length} does not match expected header length ${headersLength} + body length ${messageLength}`);
+                        `Unexpected end of stream: buffer length ${buffer.length} does not match expected header length ${headersLength} + body length ${messageLength}`,
+                    );
                     continue main_loop;
                 }
-                await once(process.stdin, 'readable');
+                await once(process.stdin, "readable");
             }
 
             const messageEnd = headersLength + messageLength;
@@ -125,12 +140,12 @@ async function* readStdin() {
             buffer = buffer.subarray(messageEnd);
             headersLength = null;
             messageLength = null;
-            yield message.toString('utf8');
+            yield message.toString("utf8");
         }
     } catch (e) {
         sendResponse(makeError(`Error reading stdin: ${e}`));
     } finally {
-        process.stdin.off('data', () => { });
+        process.stdin.off("data", () => {});
     }
 }
 
@@ -143,7 +158,7 @@ async function handleMessage(message, prettier) {
         throw new Error(`Message id is undefined: ${JSON.stringify(message)}`);
     }
 
-    if (method === 'prettier/format') {
+    if (method === "prettier/format") {
         if (params === undefined || params.text === undefined) {
             throw new Error(`Message params.text is undefined: ${JSON.stringify(message)}`);
         }
@@ -153,7 +168,7 @@ async function handleMessage(message, prettier) {
 
         let resolvedConfig = {};
         if (params.options.filepath !== undefined) {
-            resolvedConfig = await prettier.prettier.resolveConfig(params.options.filepath) || {};
+            resolvedConfig = (await prettier.prettier.resolveConfig(params.options.filepath)) || {};
         }
 
         const options = {
@@ -161,21 +176,25 @@ async function handleMessage(message, prettier) {
             ...resolvedConfig,
             parser: params.options.parser,
             plugins: params.options.plugins,
-            path: params.options.filepath
+            path: params.options.filepath,
         };
-        process.stderr.write(`Resolved config: ${JSON.stringify(resolvedConfig)}, will format file '${params.options.filepath || ''}' with options: ${JSON.stringify(options)}\n`);
+        process.stderr.write(
+            `Resolved config: ${JSON.stringify(resolvedConfig)}, will format file '${
+                params.options.filepath || ""
+            }' with options: ${JSON.stringify(options)}\n`,
+        );
         const formattedText = await prettier.prettier.format(params.text, options);
         sendResponse({ id, result: { text: formattedText } });
-    } else if (method === 'prettier/clear_cache') {
+    } else if (method === "prettier/clear_cache") {
         prettier.prettier.clearConfigCache();
-        prettier.config = await prettier.prettier.resolveConfig(prettier.path) || {};
+        prettier.config = (await prettier.prettier.resolveConfig(prettier.path)) || {};
         sendResponse({ id, result: null });
-    } else if (method === 'initialize') {
+    } else if (method === "initialize") {
         sendResponse({
             id,
             result: {
-                "capabilities": {}
-            }
+                capabilities: {},
+            },
         });
     } else {
         throw new Error(`Unknown method: ${method}`);
@@ -185,18 +204,20 @@ async function handleMessage(message, prettier) {
 function makeError(message) {
     return {
         error: {
-            "code": -32600, // invalid request code
+            code: -32600, // invalid request code
             message,
-        }
+        },
     };
 }
 
 function sendResponse(response) {
     const responsePayloadString = JSON.stringify({
         jsonrpc: "2.0",
-        ...response
+        ...response,
     });
-    const headers = `${contentLengthHeaderName}: ${Buffer.byteLength(responsePayloadString)}${headerSeparator}${headerSeparator}`;
+    const headers = `${contentLengthHeaderName}: ${Buffer.byteLength(
+        responsePayloadString,
+    )}${headerSeparator}${headerSeparator}`;
     process.stdout.write(headers + responsePayloadString);
 }
 

crates/project/src/project.rs

@@ -54,7 +54,7 @@ use lsp_command::*;
 use node_runtime::NodeRuntime;
 use parking_lot::Mutex;
 use postage::watch;
-use prettier::{LocateStart, Prettier};
+use prettier::Prettier;
 use project_settings::{LspSettings, ProjectSettings};
 use rand::prelude::*;
 use search::SearchQuery;
@@ -69,7 +69,7 @@ use std::{
     hash::Hash,
     mem,
     num::NonZeroU32,
-    ops::Range,
+    ops::{ControlFlow, Range},
     path::{self, Component, Path, PathBuf},
     process::Stdio,
     str,
@@ -82,8 +82,11 @@ use std::{
 use terminals::Terminals;
 use text::Anchor;
 use util::{
-    debug_panic, defer, http::HttpClient, merge_json_value_into,
-    paths::LOCAL_SETTINGS_RELATIVE_PATH, post_inc, ResultExt, TryFutureExt as _,
+    debug_panic, defer,
+    http::HttpClient,
+    merge_json_value_into,
+    paths::{DEFAULT_PRETTIER_DIR, LOCAL_SETTINGS_RELATIVE_PATH},
+    post_inc, ResultExt, TryFutureExt as _,
 };
 
 pub use fs::*;
@@ -162,17 +165,15 @@ pub struct Project {
     copilot_log_subscription: Option<lsp::Subscription>,
     current_lsp_settings: HashMap<Arc<str>, LspSettings>,
     node: Option<Arc<dyn NodeRuntime>>,
-    #[cfg(not(any(test, feature = "test-support")))]
     default_prettier: Option<DefaultPrettier>,
-    prettier_instances: HashMap<
-        (Option<WorktreeId>, PathBuf),
-        Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>,
-    >,
+    prettiers_per_worktree: HashMap<WorktreeId, HashSet<Option<PathBuf>>>,
+    prettier_instances: HashMap<PathBuf, Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>>,
 }
 
-#[cfg(not(any(test, feature = "test-support")))]
 struct DefaultPrettier {
-    installation_process: Option<Shared<Task<()>>>,
+    instance: Option<Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>>,
+    installation_process: Option<Shared<Task<Result<(), Arc<anyhow::Error>>>>>,
+    #[cfg(not(any(test, feature = "test-support")))]
     installed_plugins: HashSet<&'static str>,
 }
 
@@ -685,8 +686,8 @@ impl Project {
                 copilot_log_subscription: None,
                 current_lsp_settings: settings::get::<ProjectSettings>(cx).lsp.clone(),
                 node: Some(node),
-                #[cfg(not(any(test, feature = "test-support")))]
                 default_prettier: None,
+                prettiers_per_worktree: HashMap::default(),
                 prettier_instances: HashMap::default(),
             }
         })
@@ -786,8 +787,8 @@ impl Project {
                 copilot_log_subscription: None,
                 current_lsp_settings: settings::get::<ProjectSettings>(cx).lsp.clone(),
                 node: None,
-                #[cfg(not(any(test, feature = "test-support")))]
                 default_prettier: None,
+                prettiers_per_worktree: HashMap::default(),
                 prettier_instances: HashMap::default(),
             };
             for worktree in worktrees {
@@ -924,8 +925,7 @@ impl Project {
         }
 
         for (worktree, language, settings) in language_formatters_to_check {
-            self.install_default_formatters(worktree, &language, &settings, cx)
-                .detach_and_log_err(cx);
+            self.install_default_formatters(worktree, &language, &settings, cx);
         }
 
         // Start all the newly-enabled language servers.
@@ -2681,20 +2681,7 @@ impl Project {
         let buffer_file = File::from_dyn(buffer_file.as_ref());
         let worktree = buffer_file.as_ref().map(|f| f.worktree_id(cx));
 
-        let task_buffer = buffer.clone();
-        let prettier_installation_task =
-            self.install_default_formatters(worktree, &new_language, &settings, cx);
-        cx.spawn(|project, mut cx| async move {
-            prettier_installation_task.await?;
-            let _ = project
-                .update(&mut cx, |project, cx| {
-                    project.prettier_instance_for_buffer(&task_buffer, cx)
-                })
-                .await;
-            anyhow::Ok(())
-        })
-        .detach_and_log_err(cx);
-
+        self.install_default_formatters(worktree, &new_language, &settings, cx);
         if let Some(file) = buffer_file {
             let worktree = file.worktree.clone();
             if let Some(tree) = worktree.read(cx).as_local() {
@@ -4029,7 +4016,7 @@ impl Project {
     }
 
     pub fn format(
-        &self,
+        &mut self,
         buffers: HashSet<ModelHandle<Buffer>>,
         push_to_history: bool,
         trigger: FormatTrigger,
@@ -4049,10 +4036,10 @@ impl Project {
                 })
                 .collect::<Vec<_>>();
 
-            cx.spawn(|this, mut cx| async move {
+            cx.spawn(|project, mut cx| async move {
                 // Do not allow multiple concurrent formatting requests for the
                 // same buffer.
-                this.update(&mut cx, |this, cx| {
+                project.update(&mut cx, |this, cx| {
                     buffers_with_paths_and_servers.retain(|(buffer, _, _)| {
                         this.buffers_being_formatted
                             .insert(buffer.read(cx).remote_id())
@@ -4060,7 +4047,7 @@ impl Project {
                 });
 
                 let _cleanup = defer({
-                    let this = this.clone();
+                    let this = project.clone();
                     let mut cx = cx.clone();
                     let buffers = &buffers_with_paths_and_servers;
                     move || {
@@ -4128,7 +4115,7 @@ impl Project {
                             {
                                 format_operation = Some(FormatOperation::Lsp(
                                     Self::format_via_lsp(
-                                        &this,
+                                        &project,
                                         &buffer,
                                         buffer_abs_path,
                                         &language_server,
@@ -4163,14 +4150,14 @@ impl Project {
                             }
                         }
                         (Formatter::Auto, FormatOnSave::On | FormatOnSave::Off) => {
-                            if let Some(prettier_task) = this
+                            if let Some((prettier_path, prettier_task)) = project
                                 .update(&mut cx, |project, cx| {
                                     project.prettier_instance_for_buffer(buffer, cx)
                                 }).await {
                                     match prettier_task.await
                                     {
                                         Ok(prettier) => {
-                                            let buffer_path = buffer.read_with(&cx, |buffer, cx| {
+                                            let buffer_path = buffer.update(&mut cx, |buffer, cx| {
                                                 File::from_dyn(buffer.file()).map(|file| file.abs_path(cx))
                                             });
                                             format_operation = Some(FormatOperation::Prettier(
@@ -4180,16 +4167,35 @@ impl Project {
                                                     .context("formatting via prettier")?,
                                             ));
                                         }
-                                        Err(e) => anyhow::bail!(
-                                            "Failed to create prettier instance for buffer during autoformatting: {e:#}"
-                                        ),
+                                        Err(e) => {
+                                            project.update(&mut cx, |project, _| {
+                                                match &prettier_path {
+                                                    Some(prettier_path) => {
+                                                        project.prettier_instances.remove(prettier_path);
+                                                    },
+                                                    None => {
+                                                        if let Some(default_prettier) = project.default_prettier.as_mut() {
+                                                            default_prettier.instance = None;
+                                                        }
+                                                    },
+                                                }
+                                            });
+                                            match &prettier_path {
+                                                Some(prettier_path) => {
+                                                    log::error!("Failed to create prettier instance from {prettier_path:?} for buffer during autoformatting: {e:#}");
+                                                },
+                                                None => {
+                                                    log::error!("Failed to create default prettier instance for buffer during autoformatting: {e:#}");
+                                                },
+                                            }
+                                        }
                                     }
                             } else if let Some((language_server, buffer_abs_path)) =
                                 language_server.as_ref().zip(buffer_abs_path.as_ref())
                             {
                                 format_operation = Some(FormatOperation::Lsp(
                                     Self::format_via_lsp(
-                                        &this,
+                                        &project,
                                         &buffer,
                                         buffer_abs_path,
                                         &language_server,
@@ -4202,14 +4208,14 @@ impl Project {
                             }
                         }
                         (Formatter::Prettier { .. }, FormatOnSave::On | FormatOnSave::Off) => {
-                            if let Some(prettier_task) = this
+                            if let Some((prettier_path, prettier_task)) = project
                                 .update(&mut cx, |project, cx| {
                                     project.prettier_instance_for_buffer(buffer, cx)
                                 }).await {
                                     match prettier_task.await
                                     {
                                         Ok(prettier) => {
-                                            let buffer_path = buffer.read_with(&cx, |buffer, cx| {
+                                            let buffer_path = buffer.update(&mut cx, |buffer, cx| {
                                                 File::from_dyn(buffer.file()).map(|file| file.abs_path(cx))
                                             });
                                             format_operation = Some(FormatOperation::Prettier(
@@ -4219,9 +4225,28 @@ impl Project {
                                                     .context("formatting via prettier")?,
                                             ));
                                         }
-                                        Err(e) => anyhow::bail!(
-                                            "Failed to create prettier instance for buffer during formatting: {e:#}"
-                                        ),
+                                        Err(e) => {
+                                            project.update(&mut cx, |project, _| {
+                                                match &prettier_path {
+                                                    Some(prettier_path) => {
+                                                        project.prettier_instances.remove(prettier_path);
+                                                    },
+                                                    None => {
+                                                        if let Some(default_prettier) = project.default_prettier.as_mut() {
+                                                            default_prettier.instance = None;
+                                                        }
+                                                    },
+                                                }
+                                            });
+                                            match &prettier_path {
+                                                Some(prettier_path) => {
+                                                    log::error!("Failed to create prettier instance from {prettier_path:?} for buffer during autoformatting: {e:#}");
+                                                },
+                                                None => {
+                                                    log::error!("Failed to create default prettier instance for buffer during autoformatting: {e:#}");
+                                                },
+                                            }
+                                        }
                                     }
                                 }
                         }
@@ -6431,15 +6456,25 @@ impl Project {
                 "Prettier config file {config_path:?} changed, reloading prettier instances for worktree {current_worktree_id}"
             );
             let prettiers_to_reload = self
-                .prettier_instances
+                .prettiers_per_worktree
+                .get(&current_worktree_id)
                 .iter()
-                .filter_map(|((worktree_id, prettier_path), prettier_task)| {
-                    if worktree_id.is_none() || worktree_id == &Some(current_worktree_id) {
-                        Some((*worktree_id, prettier_path.clone(), prettier_task.clone()))
-                    } else {
-                        None
-                    }
+                .flat_map(|prettier_paths| prettier_paths.iter())
+                .flatten()
+                .filter_map(|prettier_path| {
+                    Some((
+                        current_worktree_id,
+                        Some(prettier_path.clone()),
+                        self.prettier_instances.get(prettier_path)?.clone(),
+                    ))
                 })
+                .chain(self.default_prettier.iter().filter_map(|default_prettier| {
+                    Some((
+                        current_worktree_id,
+                        None,
+                        default_prettier.instance.clone()?,
+                    ))
+                }))
                 .collect::<Vec<_>>();
 
             cx.background()
@@ -6450,9 +6485,15 @@ impl Project {
                                 .clear_cache()
                                 .await
                                 .with_context(|| {
-                                    format!(
-                                        "clearing prettier {prettier_path:?} cache for worktree {worktree_id:?} on prettier settings update"
-                                    )
+                                    match prettier_path {
+                                        Some(prettier_path) => format!(
+                                            "clearing prettier {prettier_path:?} cache for worktree {worktree_id:?} on prettier settings update"
+                                        ),
+                                        None => format!(
+                                            "clearing default prettier cache for worktree {worktree_id:?} on prettier settings update"
+                                        ),
+                                    }
+
                                 })
                                 .map_err(Arc::new)
                         }
@@ -8364,7 +8405,12 @@ impl Project {
         &mut self,
         buffer: &ModelHandle<Buffer>,
         cx: &mut ModelContext<Self>,
-    ) -> Task<Option<Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>>> {
+    ) -> Task<
+        Option<(
+            Option<PathBuf>,
+            Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>,
+        )>,
+    > {
         let buffer = buffer.read(cx);
         let buffer_file = buffer.file();
         let Some(buffer_language) = buffer.language() else {
@@ -8374,136 +8420,122 @@ impl Project {
             return Task::ready(None);
         }
 
-        let buffer_file = File::from_dyn(buffer_file);
-        let buffer_path = buffer_file.map(|file| Arc::clone(file.path()));
-        let worktree_path = buffer_file
-            .as_ref()
-            .and_then(|file| Some(file.worktree.read(cx).abs_path()));
-        let worktree_id = buffer_file.map(|file| file.worktree_id(cx));
-        if self.is_local() || worktree_id.is_none() || worktree_path.is_none() {
+        if self.is_local() {
             let Some(node) = self.node.as_ref().map(Arc::clone) else {
                 return Task::ready(None);
             };
-            cx.spawn(|this, mut cx| async move {
-                let fs = this.update(&mut cx, |project, _| Arc::clone(&project.fs));
-                let prettier_dir = match cx
-                    .background()
-                    .spawn(Prettier::locate(
-                        worktree_path.zip(buffer_path).map(
-                            |(worktree_root_path, starting_path)| LocateStart {
-                                worktree_root_path,
-                                starting_path,
-                            },
-                        ),
-                        fs,
-                    ))
-                    .await
-                {
-                    Ok(path) => path,
-                    Err(e) => {
-                        return Some(
-                            Task::ready(Err(Arc::new(e.context(
-                                "determining prettier path for worktree {worktree_path:?}",
-                            ))))
-                            .shared(),
-                        );
-                    }
-                };
-
-                if let Some(existing_prettier) = this.update(&mut cx, |project, _| {
-                    project
-                        .prettier_instances
-                        .get(&(worktree_id, prettier_dir.clone()))
-                        .cloned()
-                }) {
-                    return Some(existing_prettier);
-                }
-
-                log::info!("Found prettier in {prettier_dir:?}, starting.");
-                let task_prettier_dir = prettier_dir.clone();
-                let weak_project = this.downgrade();
-                let new_server_id =
-                    this.update(&mut cx, |this, _| this.languages.next_language_server_id());
-                let new_prettier_task = cx
-                    .spawn(|mut cx| async move {
-                        let prettier = Prettier::start(
-                            worktree_id.map(|id| id.to_usize()),
-                            new_server_id,
-                            task_prettier_dir,
-                            node,
-                            cx.clone(),
-                        )
-                        .await
-                        .context("prettier start")
-                        .map_err(Arc::new)?;
-                        log::info!("Started prettier in {:?}", prettier.prettier_dir());
-
-                        if let Some((project, prettier_server)) =
-                            weak_project.upgrade(&mut cx).zip(prettier.server())
+            match File::from_dyn(buffer_file).map(|file| (file.worktree_id(cx), file.abs_path(cx)))
+            {
+                Some((worktree_id, buffer_path)) => {
+                    let fs = Arc::clone(&self.fs);
+                    let installed_prettiers = self.prettier_instances.keys().cloned().collect();
+                    return cx.spawn(|project, mut cx| async move {
+                        match cx
+                            .background()
+                            .spawn(async move {
+                                Prettier::locate_prettier_installation(
+                                    fs.as_ref(),
+                                    &installed_prettiers,
+                                    &buffer_path,
+                                )
+                                .await
+                            })
+                            .await
                         {
-                            project.update(&mut cx, |project, cx| {
-                                let name = if prettier.is_default() {
-                                    LanguageServerName(Arc::from("prettier (default)"))
-                                } else {
-                                    let prettier_dir = prettier.prettier_dir();
-                                    let worktree_path = prettier
-                                        .worktree_id()
-                                        .map(WorktreeId::from_usize)
-                                        .and_then(|id| project.worktree_for_id(id, cx))
-                                        .map(|worktree| worktree.read(cx).abs_path());
-                                    match worktree_path {
-                                        Some(worktree_path) => {
-                                            if worktree_path.as_ref() == prettier_dir {
-                                                LanguageServerName(Arc::from(format!(
-                                                    "prettier ({})",
-                                                    prettier_dir
-                                                        .file_name()
-                                                        .and_then(|name| name.to_str())
-                                                        .unwrap_or_default()
-                                                )))
-                                            } else {
-                                                let dir_to_display = match prettier_dir
-                                                    .strip_prefix(&worktree_path)
-                                                    .ok()
-                                                {
-                                                    Some(relative_path) => relative_path,
-                                                    None => prettier_dir,
-                                                };
-                                                LanguageServerName(Arc::from(format!(
-                                                    "prettier ({})",
-                                                    dir_to_display.display(),
-                                                )))
-                                            }
-                                        }
-                                        None => LanguageServerName(Arc::from(format!(
-                                            "prettier ({})",
-                                            prettier_dir.display(),
-                                        ))),
+                            Ok(ControlFlow::Break(())) => {
+                                return None;
+                            }
+                            Ok(ControlFlow::Continue(None)) => {
+                                let started_default_prettier =
+                                    project.update(&mut cx, |project, _| {
+                                        project
+                                            .prettiers_per_worktree
+                                            .entry(worktree_id)
+                                            .or_default()
+                                            .insert(None);
+                                        project.default_prettier.as_ref().and_then(
+                                            |default_prettier| default_prettier.instance.clone(),
+                                        )
+                                    });
+                                match started_default_prettier {
+                                    Some(old_task) => return Some((None, old_task)),
+                                    None => {
+                                        let new_default_prettier = project
+                                            .update(&mut cx, |_, cx| {
+                                                start_default_prettier(node, Some(worktree_id), cx)
+                                            })
+                                            .await;
+                                        return Some((None, new_default_prettier));
                                     }
-                                };
+                                }
+                            }
+                            Ok(ControlFlow::Continue(Some(prettier_dir))) => {
+                                project.update(&mut cx, |project, _| {
+                                    project
+                                        .prettiers_per_worktree
+                                        .entry(worktree_id)
+                                        .or_default()
+                                        .insert(Some(prettier_dir.clone()))
+                                });
+                                if let Some(existing_prettier) =
+                                    project.update(&mut cx, |project, _| {
+                                        project.prettier_instances.get(&prettier_dir).cloned()
+                                    })
+                                {
+                                    log::debug!(
+                                        "Found already started prettier in {prettier_dir:?}"
+                                    );
+                                    return Some((Some(prettier_dir), existing_prettier));
+                                }
 
-                                project
-                                    .supplementary_language_servers
-                                    .insert(new_server_id, (name, Arc::clone(prettier_server)));
-                                cx.emit(Event::LanguageServerAdded(new_server_id));
-                            });
+                                log::info!("Found prettier in {prettier_dir:?}, starting.");
+                                let new_prettier_task = project.update(&mut cx, |project, cx| {
+                                    let new_prettier_task = start_prettier(
+                                        node,
+                                        prettier_dir.clone(),
+                                        Some(worktree_id),
+                                        cx,
+                                    );
+                                    project
+                                        .prettier_instances
+                                        .insert(prettier_dir.clone(), new_prettier_task.clone());
+                                    new_prettier_task
+                                });
+                                Some((Some(prettier_dir), new_prettier_task))
+                            }
+                            Err(e) => {
+                                return Some((
+                                    None,
+                                    Task::ready(Err(Arc::new(
+                                        e.context("determining prettier path"),
+                                    )))
+                                    .shared(),
+                                ));
+                            }
                         }
-                        Ok(Arc::new(prettier)).map_err(Arc::new)
-                    })
-                    .shared();
-                this.update(&mut cx, |project, _| {
-                    project
-                        .prettier_instances
-                        .insert((worktree_id, prettier_dir), new_prettier_task.clone());
-                });
-                Some(new_prettier_task)
-            })
+                    });
+                }
+                None => {
+                    let started_default_prettier = self
+                        .default_prettier
+                        .as_ref()
+                        .and_then(|default_prettier| default_prettier.instance.clone());
+                    match started_default_prettier {
+                        Some(old_task) => return Task::ready(Some((None, old_task))),
+                        None => {
+                            let new_task = start_default_prettier(node, None, cx);
+                            return cx.spawn(|_, _| async move { Some((None, new_task.await)) });
+                        }
+                    }
+                }
+            }
         } else if self.remote_id().is_some() {
             return Task::ready(None);
         } else {
-            Task::ready(Some(
+            Task::ready(Some((
+                None,
                 Task::ready(Err(Arc::new(anyhow!("project does not have a remote id")))).shared(),
-            ))
+            )))
         }
     }
 
@@ -8514,8 +8546,7 @@ impl Project {
         _new_language: &Language,
         _language_settings: &LanguageSettings,
         _cx: &mut ModelContext<Self>,
-    ) -> Task<anyhow::Result<()>> {
-        return Task::ready(Ok(()));
+    ) {
     }
 
     #[cfg(not(any(test, feature = "test-support")))]
@@ -8525,19 +8556,19 @@ impl Project {
         new_language: &Language,
         language_settings: &LanguageSettings,
         cx: &mut ModelContext<Self>,
-    ) -> Task<anyhow::Result<()>> {
+    ) {
         match &language_settings.formatter {
             Formatter::Prettier { .. } | Formatter::Auto => {}
-            Formatter::LanguageServer | Formatter::External { .. } => return Task::ready(Ok(())),
+            Formatter::LanguageServer | Formatter::External { .. } => return,
         };
         let Some(node) = self.node.as_ref().cloned() else {
-            return Task::ready(Ok(()));
+            return;
         };
 
         let mut prettier_plugins = None;
         if new_language.prettier_parser_name().is_some() {
             prettier_plugins
-                .get_or_insert_with(|| HashSet::default())
+                .get_or_insert_with(|| HashSet::<&'static str>::default())
                 .extend(
                     new_language
                         .lsp_adapters()
@@ -8546,114 +8577,271 @@ impl Project {
                 )
         }
         let Some(prettier_plugins) = prettier_plugins else {
-            return Task::ready(Ok(()));
+            return;
         };
 
+        let fs = Arc::clone(&self.fs);
+        let locate_prettier_installation = match worktree.and_then(|worktree_id| {
+            self.worktree_for_id(worktree_id, cx)
+                .map(|worktree| worktree.read(cx).abs_path())
+        }) {
+            Some(locate_from) => {
+                let installed_prettiers = self.prettier_instances.keys().cloned().collect();
+                cx.background().spawn(async move {
+                    Prettier::locate_prettier_installation(
+                        fs.as_ref(),
+                        &installed_prettiers,
+                        locate_from.as_ref(),
+                    )
+                    .await
+                })
+            }
+            None => Task::ready(Ok(ControlFlow::Break(()))),
+        };
         let mut plugins_to_install = prettier_plugins;
-        let (mut install_success_tx, mut install_success_rx) =
-            futures::channel::mpsc::channel::<HashSet<&'static str>>(1);
-        let new_installation_process = cx
-            .spawn(|this, mut cx| async move {
-                if let Some(installed_plugins) = install_success_rx.next().await {
-                    this.update(&mut cx, |this, _| {
-                        let default_prettier =
-                            this.default_prettier
-                                .get_or_insert_with(|| DefaultPrettier {
-                                    installation_process: None,
-                                    installed_plugins: HashSet::default(),
-                                });
-                        if !installed_plugins.is_empty() {
-                            log::info!("Installed new prettier plugins: {installed_plugins:?}");
-                            default_prettier.installed_plugins.extend(installed_plugins);
-                        }
-                    })
-                }
-            })
-            .shared();
         let previous_installation_process =
             if let Some(default_prettier) = &mut self.default_prettier {
                 plugins_to_install
                     .retain(|plugin| !default_prettier.installed_plugins.contains(plugin));
                 if plugins_to_install.is_empty() {
-                    return Task::ready(Ok(()));
+                    return;
                 }
-                std::mem::replace(
-                    &mut default_prettier.installation_process,
-                    Some(new_installation_process.clone()),
-                )
+                default_prettier.installation_process.clone()
             } else {
                 None
             };
-
-        let default_prettier_dir = util::paths::DEFAULT_PRETTIER_DIR.as_path();
-        let already_running_prettier = self
-            .prettier_instances
-            .get(&(worktree, default_prettier_dir.to_path_buf()))
-            .cloned();
         let fs = Arc::clone(&self.fs);
-        cx.spawn(|this, mut cx| async move {
-            if let Some(previous_installation_process) = previous_installation_process {
-                previous_installation_process.await;
-            }
-            let mut everything_was_installed = false;
-            this.update(&mut cx, |this, _| {
-                match &mut this.default_prettier {
-                    Some(default_prettier) => {
-                        plugins_to_install
-                            .retain(|plugin| !default_prettier.installed_plugins.contains(plugin));
-                        everything_was_installed = plugins_to_install.is_empty();
-                    },
-                    None => this.default_prettier = Some(DefaultPrettier { installation_process: Some(new_installation_process), installed_plugins: HashSet::default() }),
-                }
+        let default_prettier = self
+            .default_prettier
+            .get_or_insert_with(|| DefaultPrettier {
+                instance: None,
+                installation_process: None,
+                installed_plugins: HashSet::default(),
             });
-            if everything_was_installed {
-                return Ok(());
-            }
-
-            cx.background()
-                .spawn(async move {
-                    let prettier_wrapper_path = default_prettier_dir.join(prettier::PRETTIER_SERVER_FILE);
-                    // method creates parent directory if it doesn't exist
-                    fs.save(&prettier_wrapper_path, &text::Rope::from(prettier::PRETTIER_SERVER_JS), text::LineEnding::Unix).await
-                    .with_context(|| format!("writing {} file at {prettier_wrapper_path:?}", prettier::PRETTIER_SERVER_FILE))?;
-
-                    let packages_to_versions = future::try_join_all(
-                        plugins_to_install
-                            .iter()
-                            .chain(Some(&"prettier"))
-                            .map(|package_name| async {
-                                let returned_package_name = package_name.to_string();
-                                let latest_version = node.npm_package_latest_version(package_name)
-                                    .await
-                                    .with_context(|| {
-                                        format!("fetching latest npm version for package {returned_package_name}")
-                                    })?;
-                                anyhow::Ok((returned_package_name, latest_version))
-                            }),
-                    )
+        default_prettier.installation_process = Some(
+            cx.spawn(|this, mut cx| async move {
+                match locate_prettier_installation
                     .await
-                    .context("fetching latest npm versions")?;
-
-                    log::info!("Fetching default prettier and plugins: {packages_to_versions:?}");
-                    let borrowed_packages = packages_to_versions.iter().map(|(package, version)| {
-                        (package.as_str(), version.as_str())
-                    }).collect::<Vec<_>>();
-                    node.npm_install_packages(default_prettier_dir, &borrowed_packages).await.context("fetching formatter packages")?;
-                    let installed_packages = !plugins_to_install.is_empty();
-                    install_success_tx.try_send(plugins_to_install).ok();
-
-                    if !installed_packages {
-                        if let Some(prettier) = already_running_prettier {
-                            prettier.await.map_err(|e| anyhow::anyhow!("Default prettier startup await failure: {e:#}"))?.clear_cache().await.context("clearing default prettier cache after plugins install")?;
+                    .context("locate prettier installation")
+                    .map_err(Arc::new)?
+                {
+                    ControlFlow::Break(()) => return Ok(()),
+                    ControlFlow::Continue(Some(_non_default_prettier)) => return Ok(()),
+                    ControlFlow::Continue(None) => {
+                        let mut needs_install = match previous_installation_process {
+                            Some(previous_installation_process) => {
+                                previous_installation_process.await.is_err()
+                            }
+                            None => true,
+                        };
+                        this.update(&mut cx, |this, _| {
+                            if let Some(default_prettier) = &mut this.default_prettier {
+                                plugins_to_install.retain(|plugin| {
+                                    !default_prettier.installed_plugins.contains(plugin)
+                                });
+                                needs_install |= !plugins_to_install.is_empty();
+                            }
+                        });
+                        if needs_install {
+                            let installed_plugins = plugins_to_install.clone();
+                            cx.background()
+                                .spawn(async move {
+                                    install_default_prettier(plugins_to_install, node, fs).await
+                                })
+                                .await
+                                .context("prettier & plugins install")
+                                .map_err(Arc::new)?;
+                            this.update(&mut cx, |this, _| {
+                                let default_prettier =
+                                    this.default_prettier
+                                        .get_or_insert_with(|| DefaultPrettier {
+                                            instance: None,
+                                            installation_process: Some(
+                                                Task::ready(Ok(())).shared(),
+                                            ),
+                                            installed_plugins: HashSet::default(),
+                                        });
+                                default_prettier.instance = None;
+                                default_prettier.installed_plugins.extend(installed_plugins);
+                            });
                         }
                     }
-
-                    anyhow::Ok(())
-                }).await
-        })
+                }
+                Ok(())
+            })
+            .shared(),
+        );
     }
 }
 
+fn start_default_prettier(
+    node: Arc<dyn NodeRuntime>,
+    worktree_id: Option<WorktreeId>,
+    cx: &mut ModelContext<'_, Project>,
+) -> Task<Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>> {
+    cx.spawn(|project, mut cx| async move {
+        loop {
+            let default_prettier_installing = project.update(&mut cx, |project, _| {
+                project
+                    .default_prettier
+                    .as_ref()
+                    .and_then(|default_prettier| default_prettier.installation_process.clone())
+            });
+            match default_prettier_installing {
+                Some(installation_task) => {
+                    if installation_task.await.is_ok() {
+                        break;
+                    }
+                }
+                None => break,
+            }
+        }
+
+        project.update(&mut cx, |project, cx| {
+            match project
+                .default_prettier
+                .as_mut()
+                .and_then(|default_prettier| default_prettier.instance.as_mut())
+            {
+                Some(default_prettier) => default_prettier.clone(),
+                None => {
+                    let new_default_prettier =
+                        start_prettier(node, DEFAULT_PRETTIER_DIR.clone(), worktree_id, cx);
+                    project
+                        .default_prettier
+                        .get_or_insert_with(|| DefaultPrettier {
+                            instance: None,
+                            installation_process: None,
+                            #[cfg(not(any(test, feature = "test-support")))]
+                            installed_plugins: HashSet::default(),
+                        })
+                        .instance = Some(new_default_prettier.clone());
+                    new_default_prettier
+                }
+            }
+        })
+    })
+}
+
+fn start_prettier(
+    node: Arc<dyn NodeRuntime>,
+    prettier_dir: PathBuf,
+    worktree_id: Option<WorktreeId>,
+    cx: &mut ModelContext<'_, Project>,
+) -> Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>> {
+    cx.spawn(|project, mut cx| async move {
+        let new_server_id = project.update(&mut cx, |project, _| {
+            project.languages.next_language_server_id()
+        });
+        let new_prettier = Prettier::start(new_server_id, prettier_dir, node, cx.clone())
+            .await
+            .context("default prettier spawn")
+            .map(Arc::new)
+            .map_err(Arc::new)?;
+        register_new_prettier(&project, &new_prettier, worktree_id, new_server_id, &mut cx);
+        Ok(new_prettier)
+    })
+    .shared()
+}
+
+fn register_new_prettier(
+    project: &ModelHandle<Project>,
+    prettier: &Prettier,
+    worktree_id: Option<WorktreeId>,
+    new_server_id: LanguageServerId,
+    cx: &mut AsyncAppContext,
+) {
+    let prettier_dir = prettier.prettier_dir();
+    let is_default = prettier.is_default();
+    if is_default {
+        log::info!("Started default prettier in {prettier_dir:?}");
+    } else {
+        log::info!("Started prettier in {prettier_dir:?}");
+    }
+    if let Some(prettier_server) = prettier.server() {
+        project.update(cx, |project, cx| {
+            let name = if is_default {
+                LanguageServerName(Arc::from("prettier (default)"))
+            } else {
+                let worktree_path = worktree_id
+                    .and_then(|id| project.worktree_for_id(id, cx))
+                    .map(|worktree| worktree.update(cx, |worktree, _| worktree.abs_path()));
+                let name = match worktree_path {
+                    Some(worktree_path) => {
+                        if prettier_dir == worktree_path.as_ref() {
+                            let name = prettier_dir
+                                .file_name()
+                                .and_then(|name| name.to_str())
+                                .unwrap_or_default();
+                            format!("prettier ({name})")
+                        } else {
+                            let dir_to_display = prettier_dir
+                                .strip_prefix(worktree_path.as_ref())
+                                .ok()
+                                .unwrap_or(prettier_dir);
+                            format!("prettier ({})", dir_to_display.display())
+                        }
+                    }
+                    None => format!("prettier ({})", prettier_dir.display()),
+                };
+                LanguageServerName(Arc::from(name))
+            };
+            project
+                .supplementary_language_servers
+                .insert(new_server_id, (name, Arc::clone(prettier_server)));
+            cx.emit(Event::LanguageServerAdded(new_server_id));
+        });
+    }
+}
+
+#[cfg(not(any(test, feature = "test-support")))]
+async fn install_default_prettier(
+    plugins_to_install: HashSet<&'static str>,
+    node: Arc<dyn NodeRuntime>,
+    fs: Arc<dyn Fs>,
+) -> anyhow::Result<()> {
+    let prettier_wrapper_path = DEFAULT_PRETTIER_DIR.join(prettier::PRETTIER_SERVER_FILE);
+    // method creates parent directory if it doesn't exist
+    fs.save(
+        &prettier_wrapper_path,
+        &text::Rope::from(prettier::PRETTIER_SERVER_JS),
+        text::LineEnding::Unix,
+    )
+    .await
+    .with_context(|| {
+        format!(
+            "writing {} file at {prettier_wrapper_path:?}",
+            prettier::PRETTIER_SERVER_FILE
+        )
+    })?;
+
+    let packages_to_versions =
+        future::try_join_all(plugins_to_install.iter().chain(Some(&"prettier")).map(
+            |package_name| async {
+                let returned_package_name = package_name.to_string();
+                let latest_version = node
+                    .npm_package_latest_version(package_name)
+                    .await
+                    .with_context(|| {
+                        format!("fetching latest npm version for package {returned_package_name}")
+                    })?;
+                anyhow::Ok((returned_package_name, latest_version))
+            },
+        ))
+        .await
+        .context("fetching latest npm versions")?;
+
+    log::info!("Fetching default prettier and plugins: {packages_to_versions:?}");
+    let borrowed_packages = packages_to_versions
+        .iter()
+        .map(|(package, version)| (package.as_str(), version.as_str()))
+        .collect::<Vec<_>>();
+    node.npm_install_packages(DEFAULT_PRETTIER_DIR.as_path(), &borrowed_packages)
+        .await
+        .context("fetching formatter packages")?;
+    anyhow::Ok(())
+}
+
 fn subscribe_for_copilot_events(
     copilot: &ModelHandle<Copilot>,
     cx: &mut ModelContext<'_, Project>,

crates/project/src/project_tests.rs

@@ -1,4 +1,4 @@
-use crate::{search::PathMatcher, worktree::WorktreeModelHandle, Event, *};
+use crate::{worktree::WorktreeModelHandle, Event, *};
 use fs::{FakeFs, RealFs};
 use futures::{future, StreamExt};
 use gpui::{executor::Deterministic, test::subscribe, AppContext};
@@ -13,7 +13,7 @@ use pretty_assertions::assert_eq;
 use serde_json::json;
 use std::{cell::RefCell, os::unix, rc::Rc, task::Poll};
 use unindent::Unindent as _;
-use util::{assert_set_eq, test::temp_tree};
+use util::{assert_set_eq, paths::PathMatcher, test::temp_tree};
 
 #[cfg(test)]
 #[ctor::ctor]

crates/project/src/search.rs

@@ -1,7 +1,6 @@
 use aho_corasick::{AhoCorasick, AhoCorasickBuilder};
 use anyhow::{Context, Result};
 use client::proto;
-use globset::{Glob, GlobMatcher};
 use itertools::Itertools;
 use language::{char_kind, BufferSnapshot};
 use regex::{Regex, RegexBuilder};
@@ -10,9 +9,10 @@ use std::{
     borrow::Cow,
     io::{BufRead, BufReader, Read},
     ops::Range,
-    path::{Path, PathBuf},
+    path::Path,
     sync::Arc,
 };
+use util::paths::PathMatcher;
 
 #[derive(Clone, Debug)]
 pub struct SearchInputs {
@@ -52,31 +52,6 @@ pub enum SearchQuery {
     },
 }
 
-#[derive(Clone, Debug)]
-pub struct PathMatcher {
-    maybe_path: PathBuf,
-    glob: GlobMatcher,
-}
-
-impl std::fmt::Display for PathMatcher {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        self.maybe_path.to_string_lossy().fmt(f)
-    }
-}
-
-impl PathMatcher {
-    pub fn new(maybe_glob: &str) -> Result<Self, globset::Error> {
-        Ok(PathMatcher {
-            glob: Glob::new(&maybe_glob)?.compile_matcher(),
-            maybe_path: PathBuf::from(maybe_glob),
-        })
-    }
-
-    pub fn is_match<P: AsRef<Path>>(&self, other: P) -> bool {
-        other.as_ref().starts_with(&self.maybe_path) || self.glob.is_match(other)
-    }
-}
-
 impl SearchQuery {
     pub fn text(
         query: impl ToString,

crates/project2/src/project2.rs

@@ -54,7 +54,7 @@ use lsp_command::*;
 use node_runtime::NodeRuntime;
 use parking_lot::Mutex;
 use postage::watch;
-use prettier2::{LocateStart, Prettier};
+use prettier2::Prettier;
 use project_settings::{LspSettings, ProjectSettings};
 use rand::prelude::*;
 use search::SearchQuery;
@@ -69,7 +69,7 @@ use std::{
     hash::Hash,
     mem,
     num::NonZeroU32,
-    ops::Range,
+    ops::{ControlFlow, Range},
     path::{self, Component, Path, PathBuf},
     process::Stdio,
     str,
@@ -82,8 +82,11 @@ use std::{
 use terminals::Terminals;
 use text::Anchor;
 use util::{
-    debug_panic, defer, http::HttpClient, merge_json_value_into,
-    paths::LOCAL_SETTINGS_RELATIVE_PATH, post_inc, ResultExt, TryFutureExt as _,
+    debug_panic, defer,
+    http::HttpClient,
+    merge_json_value_into,
+    paths::{DEFAULT_PRETTIER_DIR, LOCAL_SETTINGS_RELATIVE_PATH},
+    post_inc, ResultExt, TryFutureExt as _,
 };
 
 pub use fs2::*;
@@ -162,17 +165,15 @@ pub struct Project {
     copilot_log_subscription: Option<lsp2::Subscription>,
     current_lsp_settings: HashMap<Arc<str>, LspSettings>,
     node: Option<Arc<dyn NodeRuntime>>,
-    #[cfg(not(any(test, feature = "test-support")))]
     default_prettier: Option<DefaultPrettier>,
-    prettier_instances: HashMap<
-        (Option<WorktreeId>, PathBuf),
-        Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>,
-    >,
+    prettiers_per_worktree: HashMap<WorktreeId, HashSet<Option<PathBuf>>>,
+    prettier_instances: HashMap<PathBuf, Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>>,
 }
 
-#[cfg(not(any(test, feature = "test-support")))]
 struct DefaultPrettier {
-    installation_process: Option<Shared<Task<()>>>,
+    instance: Option<Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>>,
+    installation_process: Option<Shared<Task<Result<(), Arc<anyhow::Error>>>>>,
+    #[cfg(not(any(test, feature = "test-support")))]
     installed_plugins: HashSet<&'static str>,
 }
 
@@ -686,8 +687,8 @@ impl Project {
                 copilot_log_subscription: None,
                 current_lsp_settings: ProjectSettings::get_global(cx).lsp.clone(),
                 node: Some(node),
-                #[cfg(not(any(test, feature = "test-support")))]
                 default_prettier: None,
+                prettiers_per_worktree: HashMap::default(),
                 prettier_instances: HashMap::default(),
             }
         })
@@ -789,8 +790,8 @@ impl Project {
                 copilot_log_subscription: None,
                 current_lsp_settings: ProjectSettings::get_global(cx).lsp.clone(),
                 node: None,
-                #[cfg(not(any(test, feature = "test-support")))]
                 default_prettier: None,
+                prettiers_per_worktree: HashMap::default(),
                 prettier_instances: HashMap::default(),
             };
             for worktree in worktrees {
@@ -963,8 +964,7 @@ impl Project {
         }
 
         for (worktree, language, settings) in language_formatters_to_check {
-            self.install_default_formatters(worktree, &language, &settings, cx)
-                .detach_and_log_err(cx);
+            self.install_default_formatters(worktree, &language, &settings, cx);
         }
 
         // Start all the newly-enabled language servers.
@@ -2722,20 +2722,7 @@ impl Project {
         let buffer_file = File::from_dyn(buffer_file.as_ref());
         let worktree = buffer_file.as_ref().map(|f| f.worktree_id(cx));
 
-        let task_buffer = buffer.clone();
-        let prettier_installation_task =
-            self.install_default_formatters(worktree, &new_language, &settings, cx);
-        cx.spawn(move |project, mut cx| async move {
-            prettier_installation_task.await?;
-            let _ = project
-                .update(&mut cx, |project, cx| {
-                    project.prettier_instance_for_buffer(&task_buffer, cx)
-                })?
-                .await;
-            anyhow::Ok(())
-        })
-        .detach_and_log_err(cx);
-
+        self.install_default_formatters(worktree, &new_language, &settings, cx);
         if let Some(file) = buffer_file {
             let worktree = file.worktree.clone();
             if let Some(tree) = worktree.read(cx).as_local() {
@@ -4098,7 +4085,7 @@ impl Project {
     }
 
     pub fn format(
-        &self,
+        &mut self,
         buffers: HashSet<Model<Buffer>>,
         push_to_history: bool,
         trigger: FormatTrigger,
@@ -4118,10 +4105,10 @@ impl Project {
                 })
                 .collect::<Vec<_>>();
 
-            cx.spawn(move |this, mut cx| async move {
+            cx.spawn(move |project, mut cx| async move {
                 // Do not allow multiple concurrent formatting requests for the
                 // same buffer.
-                this.update(&mut cx, |this, cx| {
+                project.update(&mut cx, |this, cx| {
                     buffers_with_paths_and_servers.retain(|(buffer, _, _)| {
                         this.buffers_being_formatted
                             .insert(buffer.read(cx).remote_id())
@@ -4129,7 +4116,7 @@ impl Project {
                 })?;
 
                 let _cleanup = defer({
-                    let this = this.clone();
+                    let this = project.clone();
                     let mut cx = cx.clone();
                     let buffers = &buffers_with_paths_and_servers;
                     move || {
@@ -4197,7 +4184,7 @@ impl Project {
                             {
                                 format_operation = Some(FormatOperation::Lsp(
                                     Self::format_via_lsp(
-                                        &this,
+                                        &project,
                                         &buffer,
                                         buffer_abs_path,
                                         &language_server,
@@ -4232,7 +4219,7 @@ impl Project {
                             }
                         }
                         (Formatter::Auto, FormatOnSave::On | FormatOnSave::Off) => {
-                            if let Some(prettier_task) = this
+                            if let Some((prettier_path, prettier_task)) = project
                                 .update(&mut cx, |project, cx| {
                                     project.prettier_instance_for_buffer(buffer, cx)
                                 })?.await {
@@ -4249,16 +4236,35 @@ impl Project {
                                                     .context("formatting via prettier")?,
                                             ));
                                         }
-                                        Err(e) => anyhow::bail!(
-                                            "Failed to create prettier instance for buffer during autoformatting: {e:#}"
-                                        ),
+                                        Err(e) => {
+                                            project.update(&mut cx, |project, _| {
+                                                match &prettier_path {
+                                                    Some(prettier_path) => {
+                                                        project.prettier_instances.remove(prettier_path);
+                                                    },
+                                                    None => {
+                                                        if let Some(default_prettier) = project.default_prettier.as_mut() {
+                                                            default_prettier.instance = None;
+                                                        }
+                                                    },
+                                                }
+                                            })?;
+                                            match &prettier_path {
+                                                Some(prettier_path) => {
+                                                    log::error!("Failed to create prettier instance from {prettier_path:?} for buffer during autoformatting: {e:#}");
+                                                },
+                                                None => {
+                                                    log::error!("Failed to create default prettier instance for buffer during autoformatting: {e:#}");
+                                                },
+                                            }
+                                        }
                                     }
                             } else if let Some((language_server, buffer_abs_path)) =
                                 language_server.as_ref().zip(buffer_abs_path.as_ref())
                             {
                                 format_operation = Some(FormatOperation::Lsp(
                                     Self::format_via_lsp(
-                                        &this,
+                                        &project,
                                         &buffer,
                                         buffer_abs_path,
                                         &language_server,
@@ -4271,7 +4277,7 @@ impl Project {
                             }
                         }
                         (Formatter::Prettier { .. }, FormatOnSave::On | FormatOnSave::Off) => {
-                            if let Some(prettier_task) = this
+                            if let Some((prettier_path, prettier_task)) = project
                                 .update(&mut cx, |project, cx| {
                                     project.prettier_instance_for_buffer(buffer, cx)
                                 })?.await {
@@ -4288,9 +4294,28 @@ impl Project {
                                                     .context("formatting via prettier")?,
                                             ));
                                         }
-                                        Err(e) => anyhow::bail!(
-                                            "Failed to create prettier instance for buffer during formatting: {e:#}"
-                                        ),
+                                        Err(e) => {
+                                            project.update(&mut cx, |project, _| {
+                                                match &prettier_path {
+                                                    Some(prettier_path) => {
+                                                        project.prettier_instances.remove(prettier_path);
+                                                    },
+                                                    None => {
+                                                        if let Some(default_prettier) = project.default_prettier.as_mut() {
+                                                            default_prettier.instance = None;
+                                                        }
+                                                    },
+                                                }
+                                            })?;
+                                            match &prettier_path {
+                                                Some(prettier_path) => {
+                                                    log::error!("Failed to create prettier instance from {prettier_path:?} for buffer during autoformatting: {e:#}");
+                                                },
+                                                None => {
+                                                    log::error!("Failed to create default prettier instance for buffer during autoformatting: {e:#}");
+                                                },
+                                            }
+                                        }
                                     }
                                 }
                         }
@@ -6508,15 +6533,25 @@ impl Project {
                 "Prettier config file {config_path:?} changed, reloading prettier instances for worktree {current_worktree_id}"
             );
             let prettiers_to_reload = self
-                .prettier_instances
+                .prettiers_per_worktree
+                .get(&current_worktree_id)
                 .iter()
-                .filter_map(|((worktree_id, prettier_path), prettier_task)| {
-                    if worktree_id.is_none() || worktree_id == &Some(current_worktree_id) {
-                        Some((*worktree_id, prettier_path.clone(), prettier_task.clone()))
-                    } else {
-                        None
-                    }
+                .flat_map(|prettier_paths| prettier_paths.iter())
+                .flatten()
+                .filter_map(|prettier_path| {
+                    Some((
+                        current_worktree_id,
+                        Some(prettier_path.clone()),
+                        self.prettier_instances.get(prettier_path)?.clone(),
+                    ))
                 })
+                .chain(self.default_prettier.iter().filter_map(|default_prettier| {
+                    Some((
+                        current_worktree_id,
+                        None,
+                        default_prettier.instance.clone()?,
+                    ))
+                }))
                 .collect::<Vec<_>>();
 
             cx.executor()
@@ -6527,9 +6562,14 @@ impl Project {
                                 .clear_cache()
                                 .await
                                 .with_context(|| {
-                                    format!(
-                                        "clearing prettier {prettier_path:?} cache for worktree {worktree_id:?} on prettier settings update"
-                                    )
+                                    match prettier_path {
+                                        Some(prettier_path) => format!(
+                                            "clearing prettier {prettier_path:?} cache for worktree {worktree_id:?} on prettier settings update"
+                                        ),
+                                        None => format!(
+                                            "clearing default prettier cache for worktree {worktree_id:?} on prettier settings update"
+                                        ),
+                                    }
                                 })
                                 .map_err(Arc::new)
                         }
@@ -8415,7 +8455,12 @@ impl Project {
         &mut self,
         buffer: &Model<Buffer>,
         cx: &mut ModelContext<Self>,
-    ) -> Task<Option<Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>>> {
+    ) -> Task<
+        Option<(
+            Option<PathBuf>,
+            Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>,
+        )>,
+    > {
         let buffer = buffer.read(cx);
         let buffer_file = buffer.file();
         let Some(buffer_language) = buffer.language() else {
@@ -8425,142 +8470,145 @@ impl Project {
             return Task::ready(None);
         }
 
-        let buffer_file = File::from_dyn(buffer_file);
-        let buffer_path = buffer_file.map(|file| Arc::clone(file.path()));
-        let worktree_path = buffer_file
-            .as_ref()
-            .and_then(|file| Some(file.worktree.read(cx).abs_path()));
-        let worktree_id = buffer_file.map(|file| file.worktree_id(cx));
-        if self.is_local() || worktree_id.is_none() || worktree_path.is_none() {
+        if self.is_local() {
             let Some(node) = self.node.as_ref().map(Arc::clone) else {
                 return Task::ready(None);
             };
-            let fs = self.fs.clone();
-            cx.spawn(move |this, mut cx| async move {
-                let prettier_dir = match cx
-                    .executor()
-                    .spawn(Prettier::locate(
-                        worktree_path.zip(buffer_path).map(
-                            |(worktree_root_path, starting_path)| LocateStart {
-                                worktree_root_path,
-                                starting_path,
-                            },
-                        ),
-                        fs,
-                    ))
-                    .await
-                {
-                    Ok(path) => path,
-                    Err(e) => {
-                        return Some(
-                            Task::ready(Err(Arc::new(e.context(
-                                "determining prettier path for worktree {worktree_path:?}",
-                            ))))
-                            .shared(),
-                        );
-                    }
-                };
-
-                if let Some(existing_prettier) = this
-                    .update(&mut cx, |project, _| {
-                        project
-                            .prettier_instances
-                            .get(&(worktree_id, prettier_dir.clone()))
-                            .cloned()
-                    })
-                    .ok()
-                    .flatten()
-                {
-                    return Some(existing_prettier);
-                }
-
-                log::info!("Found prettier in {prettier_dir:?}, starting.");
-                let task_prettier_dir = prettier_dir.clone();
-                let new_prettier_task = cx
-                    .spawn({
-                        let this = this.clone();
-                        move |mut cx| async move {
-                            let new_server_id = this.update(&mut cx, |this, _| {
-                                this.languages.next_language_server_id()
-                            })?;
-                            let prettier = Prettier::start(
-                                worktree_id.map(|id| id.to_usize()),
-                                new_server_id,
-                                task_prettier_dir,
-                                node,
-                                cx.clone(),
-                            )
+            match File::from_dyn(buffer_file).map(|file| (file.worktree_id(cx), file.abs_path(cx)))
+            {
+                Some((worktree_id, buffer_path)) => {
+                    let fs = Arc::clone(&self.fs);
+                    let installed_prettiers = self.prettier_instances.keys().cloned().collect();
+                    return cx.spawn(move |project, mut cx| async move {
+                        match cx
+                            .executor()
+                            .spawn(async move {
+                                Prettier::locate_prettier_installation(
+                                    fs.as_ref(),
+                                    &installed_prettiers,
+                                    &buffer_path,
+                                )
+                                .await
+                            })
                             .await
-                            .context("prettier start")
-                            .map_err(Arc::new)?;
-                            log::info!("Started prettier in {:?}", prettier.prettier_dir());
-
-                            if let Some(prettier_server) = prettier.server() {
-                                this.update(&mut cx, |project, cx| {
-                                    let name = if prettier.is_default() {
-                                        LanguageServerName(Arc::from("prettier (default)"))
-                                    } else {
-                                        let prettier_dir = prettier.prettier_dir();
-                                        let worktree_path = prettier
-                                            .worktree_id()
-                                            .map(WorktreeId::from_usize)
-                                            .and_then(|id| project.worktree_for_id(id, cx))
-                                            .map(|worktree| worktree.read(cx).abs_path());
-                                        match worktree_path {
-                                            Some(worktree_path) => {
-                                                if worktree_path.as_ref() == prettier_dir {
-                                                    LanguageServerName(Arc::from(format!(
-                                                        "prettier ({})",
-                                                        prettier_dir
-                                                            .file_name()
-                                                            .and_then(|name| name.to_str())
-                                                            .unwrap_or_default()
-                                                    )))
-                                                } else {
-                                                    let dir_to_display = match prettier_dir
-                                                        .strip_prefix(&worktree_path)
-                                                        .ok()
-                                                    {
-                                                        Some(relative_path) => relative_path,
-                                                        None => prettier_dir,
-                                                    };
-                                                    LanguageServerName(Arc::from(format!(
-                                                        "prettier ({})",
-                                                        dir_to_display.display(),
-                                                    )))
-                                                }
-                                            }
-                                            None => LanguageServerName(Arc::from(format!(
-                                                "prettier ({})",
-                                                prettier_dir.display(),
-                                            ))),
-                                        }
-                                    };
-
-                                    project
-                                        .supplementary_language_servers
-                                        .insert(new_server_id, (name, Arc::clone(prettier_server)));
-                                    cx.emit(Event::LanguageServerAdded(new_server_id));
-                                })?;
+                        {
+                            Ok(ControlFlow::Break(())) => {
+                                return None;
+                            }
+                            Ok(ControlFlow::Continue(None)) => {
+                                match project.update(&mut cx, |project, _| {
+                                    project
+                                        .prettiers_per_worktree
+                                        .entry(worktree_id)
+                                        .or_default()
+                                        .insert(None);
+                                    project.default_prettier.as_ref().and_then(
+                                        |default_prettier| default_prettier.instance.clone(),
+                                    )
+                                }) {
+                                    Ok(Some(old_task)) => Some((None, old_task)),
+                                    Ok(None) => {
+                                        match project.update(&mut cx, |_, cx| {
+                                            start_default_prettier(node, Some(worktree_id), cx)
+                                        }) {
+                                            Ok(new_default_prettier) => {
+                                                return Some((None, new_default_prettier.await))
+                                            }
+                                            Err(e) => {
+                                                Some((
+                                                    None,
+                                                    Task::ready(Err(Arc::new(e.context("project is gone during default prettier startup"))))
+                                                        .shared(),
+                                                ))
+                                            }
+                                        }
+                                    }
+                                    Err(e) => Some((None, Task::ready(Err(Arc::new(e.context("project is gone during default prettier checks"))))
+                                        .shared())),
+                                }
+                            }
+                            Ok(ControlFlow::Continue(Some(prettier_dir))) => {
+                                match project.update(&mut cx, |project, _| {
+                                    project
+                                        .prettiers_per_worktree
+                                        .entry(worktree_id)
+                                        .or_default()
+                                        .insert(Some(prettier_dir.clone()));
+                                    project.prettier_instances.get(&prettier_dir).cloned()
+                                }) {
+                                    Ok(Some(existing_prettier)) => {
+                                        log::debug!(
+                                            "Found already started prettier in {prettier_dir:?}"
+                                        );
+                                        return Some((Some(prettier_dir), existing_prettier));
+                                    }
+                                    Err(e) => {
+                                        return Some((
+                                            Some(prettier_dir),
+                                            Task::ready(Err(Arc::new(e.context("project is gone during custom prettier checks"))))
+                                            .shared(),
+                                        ))
+                                    }
+                                    _ => {},
+                                }
+
+                                log::info!("Found prettier in {prettier_dir:?}, starting.");
+                                let new_prettier_task =
+                                    match project.update(&mut cx, |project, cx| {
+                                        let new_prettier_task = start_prettier(
+                                            node,
+                                            prettier_dir.clone(),
+                                            Some(worktree_id),
+                                            cx,
+                                        );
+                                        project.prettier_instances.insert(
+                                            prettier_dir.clone(),
+                                            new_prettier_task.clone(),
+                                        );
+                                        new_prettier_task
+                                    }) {
+                                        Ok(task) => task,
+                                        Err(e) => return Some((
+                                            Some(prettier_dir),
+                                            Task::ready(Err(Arc::new(e.context("project is gone during custom prettier startup"))))
+                                            .shared()
+                                        )),
+                                    };
+                                Some((Some(prettier_dir), new_prettier_task))
+                            }
+                            Err(e) => {
+                                return Some((
+                                    None,
+                                    Task::ready(Err(Arc::new(
+                                        e.context("determining prettier path"),
+                                    )))
+                                    .shared(),
+                                ));
                             }
-                            Ok(Arc::new(prettier)).map_err(Arc::new)
                         }
-                    })
-                    .shared();
-                this.update(&mut cx, |project, _| {
-                    project
-                        .prettier_instances
-                        .insert((worktree_id, prettier_dir), new_prettier_task.clone());
-                })
-                .ok();
-                Some(new_prettier_task)
-            })
+                    });
+                }
+                None => {
+                    let started_default_prettier = self
+                        .default_prettier
+                        .as_ref()
+                        .and_then(|default_prettier| default_prettier.instance.clone());
+                    match started_default_prettier {
+                        Some(old_task) => return Task::ready(Some((None, old_task))),
+                        None => {
+                            let new_task = start_default_prettier(node, None, cx);
+                            return cx.spawn(|_, _| async move { Some((None, new_task.await)) });
+                        }
+                    }
+                }
+            }
         } else if self.remote_id().is_some() {
             return Task::ready(None);
         } else {
-            Task::ready(Some(
+            Task::ready(Some((
+                None,
                 Task::ready(Err(Arc::new(anyhow!("project does not have a remote id")))).shared(),
-            ))
+            )))
         }
     }
 
@@ -8571,8 +8619,7 @@ impl Project {
         _: &Language,
         _: &LanguageSettings,
         _: &mut ModelContext<Self>,
-    ) -> Task<anyhow::Result<()>> {
-        Task::ready(Ok(()))
+    ) {
     }
 
     #[cfg(not(any(test, feature = "test-support")))]
@@ -8582,19 +8629,19 @@ impl Project {
         new_language: &Language,
         language_settings: &LanguageSettings,
         cx: &mut ModelContext<Self>,
-    ) -> Task<anyhow::Result<()>> {
+    ) {
         match &language_settings.formatter {
             Formatter::Prettier { .. } | Formatter::Auto => {}
-            Formatter::LanguageServer | Formatter::External { .. } => return Task::ready(Ok(())),
+            Formatter::LanguageServer | Formatter::External { .. } => return,
         };
         let Some(node) = self.node.as_ref().cloned() else {
-            return Task::ready(Ok(()));
+            return;
         };
 
         let mut prettier_plugins = None;
         if new_language.prettier_parser_name().is_some() {
             prettier_plugins
-                .get_or_insert_with(|| HashSet::default())
+                .get_or_insert_with(|| HashSet::<&'static str>::default())
                 .extend(
                     new_language
                         .lsp_adapters()
@@ -8603,114 +8650,288 @@ impl Project {
                 )
         }
         let Some(prettier_plugins) = prettier_plugins else {
-            return Task::ready(Ok(()));
+            return;
         };
 
+        let fs = Arc::clone(&self.fs);
+        let locate_prettier_installation = match worktree.and_then(|worktree_id| {
+            self.worktree_for_id(worktree_id, cx)
+                .map(|worktree| worktree.read(cx).abs_path())
+        }) {
+            Some(locate_from) => {
+                let installed_prettiers = self.prettier_instances.keys().cloned().collect();
+                cx.executor().spawn(async move {
+                    Prettier::locate_prettier_installation(
+                        fs.as_ref(),
+                        &installed_prettiers,
+                        locate_from.as_ref(),
+                    )
+                    .await
+                })
+            }
+            None => Task::ready(Ok(ControlFlow::Break(()))),
+        };
         let mut plugins_to_install = prettier_plugins;
-        let (mut install_success_tx, mut install_success_rx) =
-            futures::channel::mpsc::channel::<HashSet<&'static str>>(1);
-        let new_installation_process = cx
-            .spawn(|this, mut cx| async move {
-                if let Some(installed_plugins) = install_success_rx.next().await {
-                    this.update(&mut cx, |this, _| {
-                        let default_prettier =
-                            this.default_prettier
-                                .get_or_insert_with(|| DefaultPrettier {
-                                    installation_process: None,
-                                    installed_plugins: HashSet::default(),
-                                });
-                        if !installed_plugins.is_empty() {
-                            log::info!("Installed new prettier plugins: {installed_plugins:?}");
-                            default_prettier.installed_plugins.extend(installed_plugins);
-                        }
-                    })
-                    .ok();
-                }
-            })
-            .shared();
         let previous_installation_process =
             if let Some(default_prettier) = &mut self.default_prettier {
                 plugins_to_install
                     .retain(|plugin| !default_prettier.installed_plugins.contains(plugin));
                 if plugins_to_install.is_empty() {
-                    return Task::ready(Ok(()));
+                    return;
                 }
-                std::mem::replace(
-                    &mut default_prettier.installation_process,
-                    Some(new_installation_process.clone()),
-                )
+                default_prettier.installation_process.clone()
             } else {
                 None
             };
 
-        let default_prettier_dir = util::paths::DEFAULT_PRETTIER_DIR.as_path();
-        let already_running_prettier = self
-            .prettier_instances
-            .get(&(worktree, default_prettier_dir.to_path_buf()))
-            .cloned();
         let fs = Arc::clone(&self.fs);
-        cx.spawn_on_main(move |this, mut cx| async move {
-            if let Some(previous_installation_process) = previous_installation_process {
-                previous_installation_process.await;
-            }
-            let mut everything_was_installed = false;
-            this.update(&mut cx, |this, _| {
-                match &mut this.default_prettier {
-                    Some(default_prettier) => {
-                        plugins_to_install
-                            .retain(|plugin| !default_prettier.installed_plugins.contains(plugin));
-                        everything_was_installed = plugins_to_install.is_empty();
-                    },
-                    None => this.default_prettier = Some(DefaultPrettier { installation_process: Some(new_installation_process), installed_plugins: HashSet::default() }),
-                }
-            })?;
-            if everything_was_installed {
-                return Ok(());
-            }
-
-            cx.spawn(move |_| async move {
-                let prettier_wrapper_path = default_prettier_dir.join(prettier2::PRETTIER_SERVER_FILE);
-                // method creates parent directory if it doesn't exist
-                fs.save(&prettier_wrapper_path, &text::Rope::from(prettier2::PRETTIER_SERVER_JS), text::LineEnding::Unix).await
-                .with_context(|| format!("writing {} file at {prettier_wrapper_path:?}", prettier2::PRETTIER_SERVER_FILE))?;
-
-                let packages_to_versions = future::try_join_all(
-                    plugins_to_install
-                        .iter()
-                        .chain(Some(&"prettier"))
-                        .map(|package_name| async {
-                            let returned_package_name = package_name.to_string();
-                            let latest_version = node.npm_package_latest_version(package_name)
+        let default_prettier = self
+            .default_prettier
+            .get_or_insert_with(|| DefaultPrettier {
+                instance: None,
+                installation_process: None,
+                installed_plugins: HashSet::default(),
+            });
+        default_prettier.installation_process = Some(
+            cx.spawn_on_main(|this, mut cx| async move {
+                match locate_prettier_installation
+                    .await
+                    .context("locate prettier installation")
+                    .map_err(Arc::new)?
+                {
+                    ControlFlow::Break(()) => return Ok(()),
+                    ControlFlow::Continue(Some(_non_default_prettier)) => return Ok(()),
+                    ControlFlow::Continue(None) => {
+                        let mut needs_install = match previous_installation_process {
+                            Some(previous_installation_process) => {
+                                previous_installation_process.await.is_err()
+                            }
+                            None => true,
+                        };
+                        this.update(&mut cx, |this, _| {
+                            if let Some(default_prettier) = &mut this.default_prettier {
+                                plugins_to_install.retain(|plugin| {
+                                    !default_prettier.installed_plugins.contains(plugin)
+                                });
+                                needs_install |= !plugins_to_install.is_empty();
+                            }
+                        })?;
+                        if needs_install {
+                            let installed_plugins = plugins_to_install.clone();
+                            cx.executor()
+                                .spawn(async move {
+                                    install_default_prettier(plugins_to_install, node, fs).await
+                                })
                                 .await
-                                .with_context(|| {
-                                    format!("fetching latest npm version for package {returned_package_name}")
-                                })?;
-                            anyhow::Ok((returned_package_name, latest_version))
-                        }),
-                )
-                .await
-                .context("fetching latest npm versions")?;
-
-                log::info!("Fetching default prettier and plugins: {packages_to_versions:?}");
-                let borrowed_packages = packages_to_versions.iter().map(|(package, version)| {
-                    (package.as_str(), version.as_str())
-                }).collect::<Vec<_>>();
-                node.npm_install_packages(default_prettier_dir, &borrowed_packages).await.context("fetching formatter packages")?;
-                let installed_packages = !plugins_to_install.is_empty();
-                install_success_tx.try_send(plugins_to_install).ok();
-
-                if !installed_packages {
-                    if let Some(prettier) = already_running_prettier {
-                        prettier.await.map_err(|e| anyhow::anyhow!("Default prettier startup await failure: {e:#}"))?.clear_cache().await.context("clearing default prettier cache after plugins install")?;
+                                .context("prettier & plugins install")
+                                .map_err(Arc::new)?;
+                            this.update(&mut cx, |this, _| {
+                                let default_prettier =
+                                    this.default_prettier
+                                        .get_or_insert_with(|| DefaultPrettier {
+                                            instance: None,
+                                            installation_process: Some(
+                                                Task::ready(Ok(())).shared(),
+                                            ),
+                                            installed_plugins: HashSet::default(),
+                                        });
+                                default_prettier.instance = None;
+                                default_prettier.installed_plugins.extend(installed_plugins);
+                            })?;
+                        }
                     }
                 }
-
-                anyhow::Ok(())
-            }).await
-        })
+                Ok(())
+            })
+            .shared(),
+        );
     }
 }
 
+fn start_default_prettier(
+    node: Arc<dyn NodeRuntime>,
+    worktree_id: Option<WorktreeId>,
+    cx: &mut ModelContext<'_, Project>,
+) -> Task<Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>>> {
+    cx.spawn(move |project, mut cx| async move {
+        loop {
+            let default_prettier_installing = match project.update(&mut cx, |project, _| {
+                project
+                    .default_prettier
+                    .as_ref()
+                    .and_then(|default_prettier| default_prettier.installation_process.clone())
+            }) {
+                Ok(installation) => installation,
+                Err(e) => {
+                    return Task::ready(Err(Arc::new(
+                        e.context("project is gone during default prettier installation"),
+                    )))
+                    .shared()
+                }
+            };
+            match default_prettier_installing {
+                Some(installation_task) => {
+                    if installation_task.await.is_ok() {
+                        break;
+                    }
+                }
+                None => break,
+            }
+        }
+
+        match project.update(&mut cx, |project, cx| {
+            match project
+                .default_prettier
+                .as_mut()
+                .and_then(|default_prettier| default_prettier.instance.as_mut())
+            {
+                Some(default_prettier) => default_prettier.clone(),
+                None => {
+                    let new_default_prettier =
+                        start_prettier(node, DEFAULT_PRETTIER_DIR.clone(), worktree_id, cx);
+                    project
+                        .default_prettier
+                        .get_or_insert_with(|| DefaultPrettier {
+                            instance: None,
+                            installation_process: None,
+                            #[cfg(not(any(test, feature = "test-support")))]
+                            installed_plugins: HashSet::default(),
+                        })
+                        .instance = Some(new_default_prettier.clone());
+                    new_default_prettier
+                }
+            }
+        }) {
+            Ok(task) => task,
+            Err(e) => Task::ready(Err(Arc::new(
+                e.context("project is gone during default prettier startup"),
+            )))
+            .shared(),
+        }
+    })
+}
+
+fn start_prettier(
+    node: Arc<dyn NodeRuntime>,
+    prettier_dir: PathBuf,
+    worktree_id: Option<WorktreeId>,
+    cx: &mut ModelContext<'_, Project>,
+) -> Shared<Task<Result<Arc<Prettier>, Arc<anyhow::Error>>>> {
+    cx.spawn(move |project, mut cx| async move {
+        let new_server_id = project.update(&mut cx, |project, _| {
+            project.languages.next_language_server_id()
+        })?;
+        let new_prettier = Prettier::start(new_server_id, prettier_dir, node, cx.clone())
+            .await
+            .context("default prettier spawn")
+            .map(Arc::new)
+            .map_err(Arc::new)?;
+        register_new_prettier(&project, &new_prettier, worktree_id, new_server_id, &mut cx);
+        Ok(new_prettier)
+    })
+    .shared()
+}
+
+fn register_new_prettier(
+    project: &WeakModel<Project>,
+    prettier: &Prettier,
+    worktree_id: Option<WorktreeId>,
+    new_server_id: LanguageServerId,
+    cx: &mut AsyncAppContext,
+) {
+    let prettier_dir = prettier.prettier_dir();
+    let is_default = prettier.is_default();
+    if is_default {
+        log::info!("Started default prettier in {prettier_dir:?}");
+    } else {
+        log::info!("Started prettier in {prettier_dir:?}");
+    }
+    if let Some(prettier_server) = prettier.server() {
+        project
+            .update(cx, |project, cx| {
+                let name = if is_default {
+                    LanguageServerName(Arc::from("prettier (default)"))
+                } else {
+                    let worktree_path = worktree_id
+                        .and_then(|id| project.worktree_for_id(id, cx))
+                        .map(|worktree| worktree.update(cx, |worktree, _| worktree.abs_path()));
+                    let name = match worktree_path {
+                        Some(worktree_path) => {
+                            if prettier_dir == worktree_path.as_ref() {
+                                let name = prettier_dir
+                                    .file_name()
+                                    .and_then(|name| name.to_str())
+                                    .unwrap_or_default();
+                                format!("prettier ({name})")
+                            } else {
+                                let dir_to_display = prettier_dir
+                                    .strip_prefix(worktree_path.as_ref())
+                                    .ok()
+                                    .unwrap_or(prettier_dir);
+                                format!("prettier ({})", dir_to_display.display())
+                            }
+                        }
+                        None => format!("prettier ({})", prettier_dir.display()),
+                    };
+                    LanguageServerName(Arc::from(name))
+                };
+                project
+                    .supplementary_language_servers
+                    .insert(new_server_id, (name, Arc::clone(prettier_server)));
+                cx.emit(Event::LanguageServerAdded(new_server_id));
+            })
+            .ok();
+    }
+}
+
+#[cfg(not(any(test, feature = "test-support")))]
+async fn install_default_prettier(
+    plugins_to_install: HashSet<&'static str>,
+    node: Arc<dyn NodeRuntime>,
+    fs: Arc<dyn Fs>,
+) -> anyhow::Result<()> {
+    let prettier_wrapper_path = DEFAULT_PRETTIER_DIR.join(prettier2::PRETTIER_SERVER_FILE);
+    // method creates parent directory if it doesn't exist
+    fs.save(
+        &prettier_wrapper_path,
+        &text::Rope::from(prettier2::PRETTIER_SERVER_JS),
+        text::LineEnding::Unix,
+    )
+    .await
+    .with_context(|| {
+        format!(
+            "writing {} file at {prettier_wrapper_path:?}",
+            prettier2::PRETTIER_SERVER_FILE
+        )
+    })?;
+
+    let packages_to_versions =
+        future::try_join_all(plugins_to_install.iter().chain(Some(&"prettier")).map(
+            |package_name| async {
+                let returned_package_name = package_name.to_string();
+                let latest_version = node
+                    .npm_package_latest_version(package_name)
+                    .await
+                    .with_context(|| {
+                        format!("fetching latest npm version for package {returned_package_name}")
+                    })?;
+                anyhow::Ok((returned_package_name, latest_version))
+            },
+        ))
+        .await
+        .context("fetching latest npm versions")?;
+
+    log::info!("Fetching default prettier and plugins: {packages_to_versions:?}");
+    let borrowed_packages = packages_to_versions
+        .iter()
+        .map(|(package, version)| (package.as_str(), version.as_str()))
+        .collect::<Vec<_>>();
+    node.npm_install_packages(DEFAULT_PRETTIER_DIR.as_path(), &borrowed_packages)
+        .await
+        .context("fetching formatter packages")?;
+    anyhow::Ok(())
+}
+
 fn subscribe_for_copilot_events(
     copilot: &Model<Copilot>,
     cx: &mut ModelContext<'_, Project>,

crates/project2/src/project_tests.rs

@@ -1,19 +1,24 @@
-// use crate::{search::PathMatcher, worktree::WorktreeModelHandle, Event, *};
-// use fs::{FakeFs, RealFs};
+// use crate::{Event, *};
+// use fs::FakeFs;
 // use futures::{future, StreamExt};
-// use gpui::{executor::Deterministic, test::subscribe, AppContext};
-// use language2::{
+// use gpui::AppContext;
+// use language::{
 //     language_settings::{AllLanguageSettings, LanguageSettingsContent},
 //     tree_sitter_rust, tree_sitter_typescript, Diagnostic, FakeLspAdapter, LanguageConfig,
 //     LineEnding, OffsetRangeExt, Point, ToPoint,
 // };
-// use lsp2::Url;
+// use lsp::Url;
 // use parking_lot::Mutex;
 // use pretty_assertions::assert_eq;
 // use serde_json::json;
-// use std::{cell::RefCell, os::unix, rc::Rc, task::Poll};
+// use std::{os, task::Poll};
 // use unindent::Unindent as _;
-// use util::{assert_set_eq, test::temp_tree};
+// use util::{assert_set_eq, paths::PathMatcher, test::temp_tree};
+
+// #[gpui::test]
+// async fn test_block_via_channel(cx: &mut gpui2::TestAppContext) {
+//     cx.executor().allow_parking();
+// }
 
 // #[cfg(test)]
 // #[ctor::ctor]

crates/project2/src/search.rs

@@ -1,7 +1,6 @@
 use aho_corasick::{AhoCorasick, AhoCorasickBuilder};
 use anyhow::{Context, Result};
 use client2::proto;
-use globset::{Glob, GlobMatcher};
 use itertools::Itertools;
 use language2::{char_kind, BufferSnapshot};
 use regex::{Regex, RegexBuilder};
@@ -10,9 +9,10 @@ use std::{
     borrow::Cow,
     io::{BufRead, BufReader, Read},
     ops::Range,
-    path::{Path, PathBuf},
+    path::Path,
     sync::Arc,
 };
+use util::paths::PathMatcher;
 
 #[derive(Clone, Debug)]
 pub struct SearchInputs {
@@ -52,31 +52,6 @@ pub enum SearchQuery {
     },
 }
 
-#[derive(Clone, Debug)]
-pub struct PathMatcher {
-    maybe_path: PathBuf,
-    glob: GlobMatcher,
-}
-
-impl std::fmt::Display for PathMatcher {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        self.maybe_path.to_string_lossy().fmt(f)
-    }
-}
-
-impl PathMatcher {
-    pub fn new(maybe_glob: &str) -> Result<Self, globset::Error> {
-        Ok(PathMatcher {
-            glob: Glob::new(&maybe_glob)?.compile_matcher(),
-            maybe_path: PathBuf::from(maybe_glob),
-        })
-    }
-
-    pub fn is_match<P: AsRef<Path>>(&self, other: P) -> bool {
-        other.as_ref().starts_with(&self.maybe_path) || self.glob.is_match(other)
-    }
-}
-
 impl SearchQuery {
     pub fn text(
         query: impl ToString,

crates/search/Cargo.toml

@@ -29,7 +29,6 @@ serde.workspace = true
 serde_derive.workspace = true
 smallvec.workspace = true
 smol.workspace = true
-globset.workspace = true
 serde_json.workspace = true
 [dev-dependencies]
 client = { path = "../client", features = ["test-support"] }

crates/search/src/project_search.rs

@@ -22,7 +22,7 @@ use gpui::{
 };
 use menu::Confirm;
 use project::{
-    search::{PathMatcher, SearchInputs, SearchQuery},
+    search::{SearchInputs, SearchQuery},
     Entry, Project,
 };
 use semantic_index::{SemanticIndex, SemanticIndexStatus};
@@ -37,7 +37,7 @@ use std::{
     sync::Arc,
     time::{Duration, Instant},
 };
-use util::ResultExt as _;
+use util::{paths::PathMatcher, ResultExt as _};
 use workspace::{
     item::{BreadcrumbText, Item, ItemEvent, ItemHandle},
     searchable::{Direction, SearchableItem, SearchableItemHandle},

crates/semantic_index/src/db.rs

@@ -9,7 +9,7 @@ use futures::channel::oneshot;
 use gpui::executor;
 use ndarray::{Array1, Array2};
 use ordered_float::OrderedFloat;
-use project::{search::PathMatcher, Fs};
+use project::Fs;
 use rpc::proto::Timestamp;
 use rusqlite::params;
 use rusqlite::types::Value;
@@ -21,7 +21,7 @@ use std::{
     sync::Arc,
     time::SystemTime,
 };
-use util::TryFutureExt;
+use util::{paths::PathMatcher, TryFutureExt};
 
 pub fn argsort<T: Ord>(data: &[T]) -> Vec<usize> {
     let mut indices = (0..data.len()).collect::<Vec<_>>();

crates/semantic_index/src/semantic_index.rs

@@ -21,7 +21,7 @@ use ordered_float::OrderedFloat;
 use parking_lot::Mutex;
 use parsing::{CodeContextRetriever, Span, SpanDigest, PARSEABLE_ENTIRE_FILE_TYPES};
 use postage::watch;
-use project::{search::PathMatcher, Fs, PathChange, Project, ProjectEntryId, Worktree, WorktreeId};
+use project::{Fs, PathChange, Project, ProjectEntryId, Worktree, WorktreeId};
 use smol::channel;
 use std::{
     cmp::Reverse,
@@ -33,6 +33,7 @@ use std::{
     sync::{Arc, Weak},
     time::{Duration, Instant, SystemTime},
 };
+use util::paths::PathMatcher;
 use util::{channel::RELEASE_CHANNEL_NAME, http::HttpClient, paths::EMBEDDINGS_DIR, ResultExt};
 use workspace::WorkspaceCreated;
 

crates/semantic_index/src/semantic_index_tests.rs

@@ -10,13 +10,13 @@ use gpui::{executor::Deterministic, Task, TestAppContext};
 use language::{Language, LanguageConfig, LanguageRegistry, ToOffset};
 use parking_lot::Mutex;
 use pretty_assertions::assert_eq;
-use project::{project_settings::ProjectSettings, search::PathMatcher, FakeFs, Fs, Project};
+use project::{project_settings::ProjectSettings, FakeFs, Fs, Project};
 use rand::{rngs::StdRng, Rng};
 use serde_json::json;
 use settings::SettingsStore;
 use std::{path::Path, sync::Arc, time::SystemTime};
 use unindent::Unindent;
-use util::RandomCharIter;
+use util::{paths::PathMatcher, RandomCharIter};
 
 #[ctor::ctor]
 fn init_logger() {

crates/util/Cargo.toml

@@ -14,6 +14,7 @@ test-support = ["tempdir", "git2"]
 [dependencies]
 anyhow.workspace = true
 backtrace = "0.3"
+globset.workspace = true
 log.workspace = true
 lazy_static.workspace = true
 futures.workspace = true

crates/util/src/paths.rs

@@ -1,5 +1,6 @@
 use std::path::{Path, PathBuf};
 
+use globset::{Glob, GlobMatcher};
 use serde::{Deserialize, Serialize};
 
 lazy_static::lazy_static! {
@@ -189,6 +190,31 @@ impl<P> PathLikeWithPosition<P> {
     }
 }
 
+#[derive(Clone, Debug)]
+pub struct PathMatcher {
+    maybe_path: PathBuf,
+    glob: GlobMatcher,
+}
+
+impl std::fmt::Display for PathMatcher {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.maybe_path.to_string_lossy().fmt(f)
+    }
+}
+
+impl PathMatcher {
+    pub fn new(maybe_glob: &str) -> Result<Self, globset::Error> {
+        Ok(PathMatcher {
+            glob: Glob::new(&maybe_glob)?.compile_matcher(),
+            maybe_path: PathBuf::from(maybe_glob),
+        })
+    }
+
+    pub fn is_match<P: AsRef<Path>>(&self, other: P) -> bool {
+        other.as_ref().starts_with(&self.maybe_path) || self.glob.is_match(other)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

crates/zed/Cargo.toml

@@ -3,7 +3,7 @@ authors = ["Nathan Sobo <nathansobo@gmail.com>"]
 description = "The fast, collaborative code editor."
 edition = "2021"
 name = "zed"
-version = "0.111.0"
+version = "0.111.6"
 publish = false
 
 [lib]

crates/zed/RELEASE_CHANNEL

@@ -1 +1 @@
-dev
+stable

crates/zed/src/languages/javascript/overrides.scm

@@ -8,6 +8,11 @@
 [
   (jsx_element)
   (jsx_fragment)
+] @element
+
+[
+  (jsx_opening_element)
+  (jsx_closing_element)
   (jsx_self_closing_element)
   (jsx_expression)
-] @element
+] @default

crates/zed/src/languages/tsx/overrides.scm

@@ -8,6 +8,11 @@
 [
   (jsx_element)
   (jsx_fragment)
+] @element
+
+[
+  (jsx_opening_element)
+  (jsx_closing_element)
   (jsx_self_closing_element)
   (jsx_expression)
-] @element
+] @default

crates/zed/src/languages/typescript.rs

@@ -2,6 +2,7 @@ use anyhow::{anyhow, Result};
 use async_compression::futures::bufread::GzipDecoder;
 use async_tar::Archive;
 use async_trait::async_trait;
+use collections::HashMap;
 use futures::{future::BoxFuture, FutureExt};
 use gpui::AppContext;
 use language::{LanguageServerName, LspAdapter, LspAdapterDelegate};
@@ -20,12 +21,7 @@ use util::{fs::remove_matching, github::latest_github_release};
 use util::{github::GitHubLspBinaryVersion, ResultExt};
 
 fn typescript_server_binary_arguments(server_path: &Path) -> Vec<OsString> {
-    vec![
-        server_path.into(),
-        "--stdio".into(),
-        "--tsserver-path".into(),
-        "node_modules/typescript/lib".into(),
-    ]
+    vec![server_path.into(), "--stdio".into()]
 }
 
 fn eslint_server_binary_arguments(server_path: &Path) -> Vec<OsString> {
@@ -158,9 +154,20 @@ impl LspAdapter for TypeScriptLspAdapter {
 
     async fn initialization_options(&self) -> Option<serde_json::Value> {
         Some(json!({
-            "provideFormatter": true
+            "provideFormatter": true,
+            "tsserver": {
+                "path": "node_modules/typescript/lib",
+            },
         }))
     }
+
+    async fn language_ids(&self) -> HashMap<String, String> {
+        HashMap::from_iter([
+            ("TypeScript".into(), "typescript".into()),
+            ("JavaScript".into(), "javascript".into()),
+            ("TSX".into(), "typescriptreact".into()),
+        ])
+    }
 }
 
 async fn get_cached_ts_server_binary(

crates/zed2/src/languages/javascript/overrides.scm

@@ -8,6 +8,11 @@
 [
   (jsx_element)
   (jsx_fragment)
+] @element
+
+[
+  (jsx_opening_element)
+  (jsx_closing_element)
   (jsx_self_closing_element)
   (jsx_expression)
-] @element
+] @default

crates/zed2/src/languages/tsx/overrides.scm

@@ -8,6 +8,11 @@
 [
   (jsx_element)
   (jsx_fragment)
+] @element
+
+[
+  (jsx_opening_element)
+  (jsx_closing_element)
   (jsx_self_closing_element)
   (jsx_expression)
-] @element
+] @default