Revert "lsp: Watch paths outside of worktrees at language servers request (#17173) (#17206)

Marshall Bowers created

This PR reverts #17173, as it introduced a segfault when opening any
Gleam project and the language server starts up.

This reverts commit a850731b0ed61b0ef2a0173843b6daedf45327e8.

Release Notes:

- N/A

Change summary

crates/assistant/src/prompts.rs         |  14 
crates/extension/src/extension_store.rs |   6 
crates/fs/src/fs.rs                     | 166 +++----------
crates/project/src/lsp_store.rs         | 320 +++-----------------------
crates/snippet_provider/src/lib.rs      |   7 
crates/worktree/src/worktree.rs         |  15 
crates/zed/src/main.rs                  |  12 
7 files changed, 102 insertions(+), 438 deletions(-)

Detailed changes

crates/assistant/src/prompts.rs 🔗

@@ -123,7 +123,7 @@ impl PromptBuilder {
                         if params.fs.is_dir(parent_dir).await {
                             let (mut changes, _watcher) = params.fs.watch(parent_dir, Duration::from_secs(1)).await;
                             while let Some(changed_paths) = changes.next().await {
-                                if changed_paths.iter().any(|p| &p.path == &templates_dir) {
+                                if changed_paths.iter().any(|p| p == &templates_dir) {
                                     let mut log_message = format!("Prompt template overrides directory detected at {}", templates_dir.display());
                                     if let Ok(target) = params.fs.read_link(&templates_dir).await {
                                         log_message.push_str(" -> ");
@@ -162,18 +162,18 @@ impl PromptBuilder {
                     let mut combined_changes = futures::stream::select(changes, parent_changes);
 
                     while let Some(changed_paths) = combined_changes.next().await {
-                        if changed_paths.iter().any(|p| &p.path == &templates_dir) {
+                        if changed_paths.iter().any(|p| p == &templates_dir) {
                             if !params.fs.is_dir(&templates_dir).await {
                                 log::info!("Prompt template overrides directory removed. Restoring built-in prompt templates.");
                                 Self::register_built_in_templates(&mut handlebars.lock()).log_err();
                                 break;
                             }
                         }
-                        for event in changed_paths {
-                            if event.path.starts_with(&templates_dir) && event.path.extension().map_or(false, |ext| ext == "hbs") {
-                                log::info!("Reloading prompt template override: {}", event.path.display());
-                                if let Some(content) = params.fs.load(&event.path).await.log_err() {
-                                    let file_name = event.path.file_stem().unwrap().to_string_lossy();
+                        for changed_path in changed_paths {
+                            if changed_path.starts_with(&templates_dir) && changed_path.extension().map_or(false, |ext| ext == "hbs") {
+                                log::info!("Reloading prompt template override: {}", changed_path.display());
+                                if let Some(content) = params.fs.load(&changed_path).await.log_err() {
+                                    let file_name = changed_path.file_stem().unwrap().to_string_lossy();
                                     handlebars.lock().register_template_string(&file_name, content).log_err();
                                 }
                             }

crates/extension/src/extension_store.rs 🔗

@@ -369,9 +369,9 @@ impl ExtensionStore {
             let installed_dir = this.installed_dir.clone();
             async move {
                 let (mut paths, _) = fs.watch(&installed_dir, FS_WATCH_LATENCY).await;
-                while let Some(events) = paths.next().await {
-                    for event in events {
-                        let Ok(event_path) = event.path.strip_prefix(&installed_dir) else {
+                while let Some(paths) = paths.next().await {
+                    for path in paths {
+                        let Ok(event_path) = path.strip_prefix(&installed_dir) else {
                             continue;
                         };
 

crates/fs/src/fs.rs 🔗

@@ -45,25 +45,6 @@ pub trait Watcher: Send + Sync {
     fn remove(&self, path: &Path) -> Result<()>;
 }
 
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
-pub enum PathEventKind {
-    Removed,
-    Created,
-    Changed,
-}
-
-#[derive(Clone, PartialEq, Eq, PartialOrd, Ord)]
-pub struct PathEvent {
-    pub path: PathBuf,
-    pub kind: Option<PathEventKind>,
-}
-
-impl From<PathEvent> for PathBuf {
-    fn from(event: PathEvent) -> Self {
-        event.path
-    }
-}
-
 #[async_trait::async_trait]
 pub trait Fs: Send + Sync {
     async fn create_dir(&self, path: &Path) -> Result<()>;
@@ -111,7 +92,7 @@ pub trait Fs: Send + Sync {
         path: &Path,
         latency: Duration,
     ) -> (
-        Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>,
+        Pin<Box<dyn Send + Stream<Item = Vec<PathBuf>>>>,
         Arc<dyn Watcher>,
     );
 
@@ -488,38 +469,17 @@ impl Fs for RealFs {
         path: &Path,
         latency: Duration,
     ) -> (
-        Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>,
+        Pin<Box<dyn Send + Stream<Item = Vec<PathBuf>>>>,
         Arc<dyn Watcher>,
     ) {
-        use fsevent::{EventStream, StreamFlags};
+        use fsevent::EventStream;
 
         let (tx, rx) = smol::channel::unbounded();
         let (stream, handle) = EventStream::new(&[path], latency);
         std::thread::spawn(move || {
             stream.run(move |events| {
-                smol::block_on(
-                    tx.send(
-                        events
-                            .into_iter()
-                            .map(|event| {
-                                let kind = if event.flags.contains(StreamFlags::ITEM_REMOVED) {
-                                    Some(PathEventKind::Removed)
-                                } else if event.flags.contains(StreamFlags::ITEM_CREATED) {
-                                    Some(PathEventKind::Created)
-                                } else if event.flags.contains(StreamFlags::ITEM_MODIFIED) {
-                                    Some(PathEventKind::Changed)
-                                } else {
-                                    None
-                                };
-                                PathEvent {
-                                    path: event.path,
-                                    kind,
-                                }
-                            })
-                            .collect(),
-                    ),
-                )
-                .is_ok()
+                smol::block_on(tx.send(events.into_iter().map(|event| event.path).collect()))
+                    .is_ok()
             });
         });
 
@@ -538,46 +498,32 @@ impl Fs for RealFs {
         path: &Path,
         latency: Duration,
     ) -> (
-        Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>,
+        Pin<Box<dyn Send + Stream<Item = Vec<PathBuf>>>>,
         Arc<dyn Watcher>,
     ) {
-        use notify::EventKind;
         use parking_lot::Mutex;
 
         let (tx, rx) = smol::channel::unbounded();
-        let pending_paths: Arc<Mutex<Vec<PathEvent>>> = Default::default();
+        let pending_paths: Arc<Mutex<Vec<PathBuf>>> = Default::default();
         let root_path = path.to_path_buf();
 
         watcher::global(|g| {
             let tx = tx.clone();
             let pending_paths = pending_paths.clone();
             g.add(move |event: &notify::Event| {
-                let kind = match event.kind {
-                    EventKind::Create(_) => Some(PathEventKind::Created),
-                    EventKind::Modify(_) => Some(PathEventKind::Changed),
-                    EventKind::Remove(_) => Some(PathEventKind::Removed),
-                    _ => None,
-                };
                 let mut paths = event
                     .paths
                     .iter()
-                    .filter_map(|path| {
-                        path.starts_with(&root_path).then(|| PathEvent {
-                            path: path.clone(),
-                            kind,
-                        })
-                    })
+                    .filter(|path| path.starts_with(&root_path))
+                    .cloned()
                     .collect::<Vec<_>>();
-
                 if !paths.is_empty() {
                     paths.sort();
                     let mut pending_paths = pending_paths.lock();
                     if pending_paths.is_empty() {
                         tx.try_send(()).ok();
                     }
-                    util::extend_sorted(&mut *pending_paths, paths, usize::MAX, |a, b| {
-                        a.path.cmp(&b.path)
-                    });
+                    util::extend_sorted(&mut *pending_paths, paths, usize::MAX, PathBuf::cmp);
                 }
             })
         })
@@ -615,10 +561,10 @@ impl Fs for RealFs {
         path: &Path,
         _latency: Duration,
     ) -> (
-        Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>,
+        Pin<Box<dyn Send + Stream<Item = Vec<PathBuf>>>>,
         Arc<dyn Watcher>,
     ) {
-        use notify::{EventKind, Watcher};
+        use notify::Watcher;
 
         let (tx, rx) = smol::channel::unbounded();
 
@@ -626,21 +572,7 @@ impl Fs for RealFs {
             let tx = tx.clone();
             move |event: Result<notify::Event, _>| {
                 if let Some(event) = event.log_err() {
-                    let kind = match event.kind {
-                        EventKind::Create(_) => Some(PathEventKind::Created),
-                        EventKind::Modify(_) => Some(PathEventKind::Changed),
-                        EventKind::Remove(_) => Some(PathEventKind::Removed),
-                        _ => None,
-                    };
-
-                    tx.try_send(
-                        event
-                            .paths
-                            .into_iter()
-                            .map(|path| PathEvent { path, kind })
-                            .collect::<Vec<_>>(),
-                    )
-                    .ok();
+                    tx.try_send(event.paths).ok();
                 }
             }
         })
@@ -750,9 +682,9 @@ struct FakeFsState {
     root: Arc<Mutex<FakeFsEntry>>,
     next_inode: u64,
     next_mtime: SystemTime,
-    event_txs: Vec<smol::channel::Sender<Vec<PathEvent>>>,
+    event_txs: Vec<smol::channel::Sender<Vec<PathBuf>>>,
     events_paused: bool,
-    buffered_events: Vec<PathEvent>,
+    buffered_events: Vec<PathBuf>,
     metadata_call_count: usize,
     read_dir_call_count: usize,
 }
@@ -861,14 +793,11 @@ impl FakeFsState {
 
     fn emit_event<I, T>(&mut self, paths: I)
     where
-        I: IntoIterator<Item = (T, Option<PathEventKind>)>,
+        I: IntoIterator<Item = T>,
         T: Into<PathBuf>,
     {
         self.buffered_events
-            .extend(paths.into_iter().map(|(path, kind)| PathEvent {
-                path: path.into(),
-                kind,
-            }));
+            .extend(paths.into_iter().map(Into::into));
 
         if !self.events_paused {
             self.flush_events(self.buffered_events.len());
@@ -943,7 +872,7 @@ impl FakeFs {
                 Ok(())
             })
             .unwrap();
-        state.emit_event([(path.to_path_buf(), None)]);
+        state.emit_event([path.to_path_buf()]);
     }
 
     pub async fn insert_file(&self, path: impl AsRef<Path>, content: Vec<u8>) {
@@ -966,7 +895,7 @@ impl FakeFs {
                 }
             })
             .unwrap();
-        state.emit_event([(path, None)]);
+        state.emit_event([path]);
     }
 
     fn write_file_internal(&self, path: impl AsRef<Path>, content: Vec<u8>) -> Result<()> {
@@ -981,24 +910,18 @@ impl FakeFs {
             mtime,
             content,
         }));
-        let mut kind = None;
-        state.write_path(path, {
-            let kind = &mut kind;
-            move |entry| {
-                match entry {
-                    btree_map::Entry::Vacant(e) => {
-                        *kind = Some(PathEventKind::Created);
-                        e.insert(file);
-                    }
-                    btree_map::Entry::Occupied(mut e) => {
-                        *kind = Some(PathEventKind::Changed);
-                        *e.get_mut() = file;
-                    }
+        state.write_path(path, move |entry| {
+            match entry {
+                btree_map::Entry::Vacant(e) => {
+                    e.insert(file);
+                }
+                btree_map::Entry::Occupied(mut e) => {
+                    *e.get_mut() = file;
                 }
-                Ok(())
             }
+            Ok(())
         })?;
-        state.emit_event([(path, kind)]);
+        state.emit_event([path]);
         Ok(())
     }
 
@@ -1107,7 +1030,7 @@ impl FakeFs {
             f(&mut repo_state);
 
             if emit_git_event {
-                state.emit_event([(dot_git, None)]);
+                state.emit_event([dot_git]);
             }
         } else {
             panic!("not a directory");
@@ -1158,7 +1081,7 @@ impl FakeFs {
         self.state.lock().emit_event(
             statuses
                 .iter()
-                .map(|(path, _)| (dot_git.parent().unwrap().join(path), None)),
+                .map(|(path, _)| dot_git.parent().unwrap().join(path)),
         );
     }
 
@@ -1328,7 +1251,7 @@ impl Fs for FakeFs {
             state.next_inode += 1;
             state.write_path(&cur_path, |entry| {
                 entry.or_insert_with(|| {
-                    created_dirs.push((cur_path.clone(), Some(PathEventKind::Created)));
+                    created_dirs.push(cur_path.clone());
                     Arc::new(Mutex::new(FakeFsEntry::Dir {
                         inode,
                         mtime,
@@ -1340,7 +1263,7 @@ impl Fs for FakeFs {
             })?
         }
 
-        self.state.lock().emit_event(created_dirs);
+        self.state.lock().emit_event(&created_dirs);
         Ok(())
     }
 
@@ -1356,12 +1279,10 @@ impl Fs for FakeFs {
             mtime,
             content: Vec::new(),
         }));
-        let mut kind = Some(PathEventKind::Created);
         state.write_path(path, |entry| {
             match entry {
                 btree_map::Entry::Occupied(mut e) => {
                     if options.overwrite {
-                        kind = Some(PathEventKind::Changed);
                         *e.get_mut() = file;
                     } else if !options.ignore_if_exists {
                         return Err(anyhow!("path already exists: {}", path.display()));
@@ -1373,7 +1294,7 @@ impl Fs for FakeFs {
             }
             Ok(())
         })?;
-        state.emit_event([(path, kind)]);
+        state.emit_event([path]);
         Ok(())
     }
 
@@ -1392,7 +1313,7 @@ impl Fs for FakeFs {
                 }
             })
             .unwrap();
-        state.emit_event([(path, None)]);
+        state.emit_event(&[path]);
         Ok(())
     }
 
@@ -1467,10 +1388,7 @@ impl Fs for FakeFs {
             })
             .unwrap();
 
-        state.emit_event([
-            (old_path, Some(PathEventKind::Removed)),
-            (new_path, Some(PathEventKind::Created)),
-        ]);
+        state.emit_event(&[old_path, new_path]);
         Ok(())
     }
 
@@ -1485,11 +1403,9 @@ impl Fs for FakeFs {
         state.next_mtime += Duration::from_nanos(1);
         let source_entry = state.read_path(&source)?;
         let content = source_entry.lock().file_content(&source)?.clone();
-        let mut kind = Some(PathEventKind::Created);
         let entry = state.write_path(&target, |e| match e {
             btree_map::Entry::Occupied(e) => {
                 if options.overwrite {
-                    kind = Some(PathEventKind::Changed);
                     Ok(Some(e.get().clone()))
                 } else if !options.ignore_if_exists {
                     return Err(anyhow!("{target:?} already exists"));
@@ -1509,7 +1425,7 @@ impl Fs for FakeFs {
         if let Some(entry) = entry {
             entry.lock().set_file_content(&target, content)?;
         }
-        state.emit_event([(target, kind)]);
+        state.emit_event(&[target]);
         Ok(())
     }
 
@@ -1546,7 +1462,7 @@ impl Fs for FakeFs {
                 e.remove();
             }
         }
-        state.emit_event([(path, Some(PathEventKind::Removed))]);
+        state.emit_event(&[path]);
         Ok(())
     }
 
@@ -1575,7 +1491,7 @@ impl Fs for FakeFs {
                 e.remove();
             }
         }
-        state.emit_event([(path, Some(PathEventKind::Removed))]);
+        state.emit_event(&[path]);
         Ok(())
     }
 
@@ -1716,7 +1632,7 @@ impl Fs for FakeFs {
         path: &Path,
         _: Duration,
     ) -> (
-        Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>,
+        Pin<Box<dyn Send + Stream<Item = Vec<PathBuf>>>>,
         Arc<dyn Watcher>,
     ) {
         self.simulate_random_delay().await;
@@ -1726,9 +1642,7 @@ impl Fs for FakeFs {
         let executor = self.executor.clone();
         (
             Box::pin(futures::StreamExt::filter(rx, move |events| {
-                let result = events
-                    .iter()
-                    .any(|evt_path| evt_path.path.starts_with(&path));
+                let result = events.iter().any(|evt_path| evt_path.starts_with(&path));
                 let executor = executor.clone();
                 async move {
                     executor.simulate_random_delay().await;

crates/project/src/lsp_store.rs 🔗

@@ -22,8 +22,8 @@ use futures::{
 };
 use globset::{Glob, GlobSet, GlobSetBuilder};
 use gpui::{
-    AppContext, AsyncAppContext, Context, Entity, EventEmitter, Model, ModelContext, PromptLevel,
-    Task, WeakModel,
+    AppContext, AsyncAppContext, Entity, EventEmitter, Model, ModelContext, PromptLevel, Task,
+    WeakModel,
 };
 use http_client::HttpClient;
 use itertools::Itertools;
@@ -57,7 +57,7 @@ use std::{
     convert::TryInto,
     ffi::OsStr,
     iter, mem,
-    ops::{ControlFlow, Range},
+    ops::Range,
     path::{self, Path, PathBuf},
     process::Stdio,
     str,
@@ -146,7 +146,7 @@ pub struct LspStore {
     language_server_ids: HashMap<(WorktreeId, LanguageServerName), LanguageServerId>,
     language_server_statuses: BTreeMap<LanguageServerId, LanguageServerStatus>,
     last_workspace_edits_by_language_server: HashMap<LanguageServerId, ProjectTransaction>,
-    language_server_watched_paths: HashMap<LanguageServerId, Model<LanguageServerWatchedPaths>>,
+    language_server_watched_paths: HashMap<LanguageServerId, HashMap<WorktreeId, GlobSet>>,
     language_server_watcher_registrations:
         HashMap<LanguageServerId, HashMap<String, Vec<FileSystemWatcher>>>,
     active_entry: Option<ProjectEntryId>,
@@ -3022,38 +3022,6 @@ impl LspStore {
             .map(|(key, value)| (*key, value))
     }
 
-    fn lsp_notify_abs_paths_changed(
-        &mut self,
-        server_id: LanguageServerId,
-        changes: Vec<PathEvent>,
-    ) {
-        maybe!({
-            let server = self.language_server_for_id(server_id)?;
-            let changes = changes
-                .into_iter()
-                .filter_map(|event| {
-                    let typ = match event.kind? {
-                        PathEventKind::Created => lsp::FileChangeType::CREATED,
-                        PathEventKind::Removed => lsp::FileChangeType::DELETED,
-                        PathEventKind::Changed => lsp::FileChangeType::CHANGED,
-                    };
-                    Some(lsp::FileEvent {
-                        uri: lsp::Url::from_file_path(&event.path).ok()?,
-                        typ,
-                    })
-                })
-                .collect::<Vec<_>>();
-            if !changes.is_empty() {
-                server
-                    .notify::<lsp::notification::DidChangeWatchedFiles>(
-                        lsp::DidChangeWatchedFilesParams { changes },
-                    )
-                    .log_err();
-            }
-            Some(())
-        });
-    }
-
     fn rebuild_watched_paths(
         &mut self,
         language_server_id: LanguageServerId,
@@ -3066,169 +3034,62 @@ impl LspStore {
             return;
         };
 
-        let mut worktree_globs = HashMap::default();
-        let mut abs_globs = HashMap::default();
-        log::trace!(
-            "Processing new watcher paths for language server with id {}",
-            language_server_id
-        );
-
-        let worktrees = self
-            .worktree_store
-            .read(cx)
-            .worktrees()
-            .filter_map(|worktree| {
-                self.language_servers_for_worktree(worktree.read(cx).id())
-                    .find(|(_, _, server)| server.server_id() == language_server_id)
-                    .map(|_| worktree)
-            })
-            .collect::<Vec<_>>();
+        let watched_paths = self
+            .language_server_watched_paths
+            .entry(language_server_id)
+            .or_default();
 
-        enum PathToWatch {
-            Worktree {
-                literal_prefix: Arc<Path>,
-                pattern: String,
-            },
-            Absolute {
-                path: Arc<Path>,
-                pattern: String,
-            },
-        }
+        let mut builders = HashMap::default();
         for watcher in watchers.values().flatten() {
-            let mut found_host = false;
-            for worktree in &worktrees {
+            for worktree in self.worktree_store.read(cx).worktrees().collect::<Vec<_>>() {
                 let glob_is_inside_worktree = worktree.update(cx, |tree, _| {
-                    if let Some(worktree_root_path) = tree.abs_path().to_str() {
-                        let path_to_watch = match &watcher.glob_pattern {
-                            lsp::GlobPattern::String(s) => {
-                                match s.strip_prefix(worktree_root_path) {
-                                    Some(relative) => {
-                                        let pattern = relative
-                                            .strip_prefix(std::path::MAIN_SEPARATOR)
-                                            .unwrap_or(relative)
-                                            .to_owned();
-                                        let literal_prefix = glob_literal_prefix(&pattern);
-
-                                        let literal_prefix = Arc::from(PathBuf::from(
-                                            literal_prefix
-                                                .strip_prefix(std::path::MAIN_SEPARATOR)
-                                                .unwrap_or(literal_prefix),
-                                        ));
-                                        PathToWatch::Worktree {
-                                            literal_prefix,
-                                            pattern,
-                                        }
-                                    }
-                                    None => {
-                                        let path = glob_literal_prefix(s);
-                                        let glob = &s[path.len()..];
-                                        let pattern = glob
-                                            .strip_prefix(std::path::MAIN_SEPARATOR)
-                                            .unwrap_or(glob)
-                                            .to_owned();
-                                        let path = PathBuf::from(path).into();
-
-                                        PathToWatch::Absolute { path, pattern }
-                                    }
-                                }
-                            }
+                    if let Some(abs_path) = tree.abs_path().to_str() {
+                        let relative_glob_pattern = match &watcher.glob_pattern {
+                            lsp::GlobPattern::String(s) => Some(
+                                s.strip_prefix(abs_path)
+                                    .unwrap_or(s)
+                                    .strip_prefix(std::path::MAIN_SEPARATOR)
+                                    .unwrap_or(s),
+                            ),
                             lsp::GlobPattern::Relative(rp) => {
-                                let Ok(mut base_uri) = match &rp.base_uri {
+                                let base_uri = match &rp.base_uri {
                                     lsp::OneOf::Left(workspace_folder) => &workspace_folder.uri,
                                     lsp::OneOf::Right(base_uri) => base_uri,
-                                }
-                                .to_file_path() else {
-                                    return false;
                                 };
-
-                                match base_uri.strip_prefix(worktree_root_path) {
-                                    Ok(relative) => {
-                                        let mut literal_prefix = relative.to_owned();
-                                        literal_prefix.push(glob_literal_prefix(&rp.pattern));
-
-                                        PathToWatch::Worktree {
-                                            literal_prefix: literal_prefix.into(),
-                                            pattern: rp.pattern.clone(),
-                                        }
-                                    }
-                                    Err(_) => {
-                                        let path = glob_literal_prefix(&rp.pattern);
-                                        let glob = &rp.pattern[path.len()..];
-                                        let pattern = glob
-                                            .strip_prefix(std::path::MAIN_SEPARATOR)
-                                            .unwrap_or(glob)
-                                            .to_owned();
-                                        base_uri.push(path);
-
-                                        PathToWatch::Absolute {
-                                            path: base_uri.into(),
-                                            pattern,
-                                        }
-                                    }
-                                }
+                                base_uri.to_file_path().ok().and_then(|file_path| {
+                                    (file_path.to_str() == Some(abs_path))
+                                        .then_some(rp.pattern.as_str())
+                                })
                             }
                         };
-                        match path_to_watch {
-                            PathToWatch::Worktree {
-                                literal_prefix,
-                                pattern,
-                            } => {
-                                if let Some((tree, glob)) =
-                                    tree.as_local_mut().zip(Glob::new(&pattern).log_err())
-                                {
-                                    tree.add_path_prefix_to_scan(literal_prefix);
-                                    worktree_globs
-                                        .entry(tree.id())
-                                        .or_insert_with(GlobSetBuilder::new)
-                                        .add(glob);
-                                } else {
-                                    return false;
-                                }
-                            }
-                            PathToWatch::Absolute { path, pattern } => {
-                                if let Some(glob) = Glob::new(&pattern).log_err() {
-                                    abs_globs
-                                        .entry(path)
-                                        .or_insert_with(GlobSetBuilder::new)
-                                        .add(glob);
-                                }
+                        if let Some(relative_glob_pattern) = relative_glob_pattern {
+                            let literal_prefix = glob_literal_prefix(relative_glob_pattern);
+                            tree.as_local_mut()
+                                .unwrap()
+                                .add_path_prefix_to_scan(Path::new(literal_prefix).into());
+                            if let Some(glob) = Glob::new(relative_glob_pattern).log_err() {
+                                builders
+                                    .entry(tree.id())
+                                    .or_insert_with(|| GlobSetBuilder::new())
+                                    .add(glob);
                             }
+                            return true;
                         }
-                        return true;
                     }
                     false
                 });
                 if glob_is_inside_worktree {
-                    log::trace!(
-                        "Watcher pattern `{}` has been attached to the worktree at `{}`",
-                        serde_json::to_string(&watcher.glob_pattern).unwrap(),
-                        worktree.read(cx).abs_path().display()
-                    );
-                    found_host = true;
+                    break;
                 }
             }
-            if !found_host {
-                log::error!(
-                    "Watcher pattern `{}` has not been attached to any worktree or absolute path",
-                    serde_json::to_string(&watcher.glob_pattern).unwrap()
-                )
-            }
         }
 
-        let mut watch_builder = LanguageServerWatchedPathsBuilder::default();
-        for (worktree_id, builder) in worktree_globs {
-            if let Ok(globset) = builder.build() {
-                watch_builder.watch_worktree(worktree_id, globset);
-            }
-        }
-        for (abs_path, builder) in abs_globs {
+        watched_paths.clear();
+        for (worktree_id, builder) in builders {
             if let Ok(globset) = builder.build() {
-                watch_builder.watch_abs_path(abs_path, globset);
+                watched_paths.insert(worktree_id, globset);
             }
         }
-        let watcher = watch_builder.build(self.fs.clone(), language_server_id, cx);
-        self.language_server_watched_paths
-            .insert(language_server_id, watcher);
 
         cx.notify();
     }
@@ -5681,7 +5542,7 @@ impl LspStore {
         }
     }
 
-    pub(super) fn update_local_worktree_language_servers(
+    pub fn update_local_worktree_language_servers(
         &mut self,
         worktree_handle: &Model<Worktree>,
         changes: &[(Arc<Path>, ProjectEntryId, PathChange)],
@@ -5710,7 +5571,7 @@ impl LspStore {
                 if let Some(watched_paths) = self
                     .language_server_watched_paths
                     .get(&server_id)
-                    .and_then(|paths| paths.read(cx).worktree_paths.get(&worktree_id))
+                    .and_then(|paths| paths.get(&worktree_id))
                 {
                     let params = lsp::DidChangeWatchedFilesParams {
                         changes: changes
@@ -5871,102 +5732,6 @@ pub enum LanguageServerToQuery {
     Other(LanguageServerId),
 }
 
-#[derive(Default)]
-struct LanguageServerWatchedPaths {
-    worktree_paths: HashMap<WorktreeId, GlobSet>,
-    abs_paths: HashMap<Arc<Path>, (GlobSet, Task<()>)>,
-}
-
-#[derive(Default)]
-struct LanguageServerWatchedPathsBuilder {
-    worktree_paths: HashMap<WorktreeId, GlobSet>,
-    abs_paths: HashMap<Arc<Path>, GlobSet>,
-}
-
-impl LanguageServerWatchedPathsBuilder {
-    fn watch_worktree(&mut self, worktree_id: WorktreeId, glob_set: GlobSet) {
-        self.worktree_paths.insert(worktree_id, glob_set);
-    }
-    fn watch_abs_path(&mut self, path: Arc<Path>, glob_set: GlobSet) {
-        self.abs_paths.insert(path, glob_set);
-    }
-    fn build(
-        self,
-        fs: Arc<dyn Fs>,
-        language_server_id: LanguageServerId,
-        cx: &mut ModelContext<LspStore>,
-    ) -> Model<LanguageServerWatchedPaths> {
-        let project = cx.weak_model();
-
-        cx.new_model(|cx| {
-            let this_id = cx.entity_id();
-            const LSP_ABS_PATH_OBSERVE: Duration = Duration::from_millis(100);
-            let abs_paths = self
-                .abs_paths
-                .into_iter()
-                .map(|(abs_path, globset)| {
-                    let task = cx.spawn({
-                        let abs_path = abs_path.clone();
-                        let fs = fs.clone();
-
-                        let lsp_store = project.clone();
-                        |_, mut cx| async move {
-                            maybe!(async move {
-                                let mut push_updates =
-                                    fs.watch(&abs_path, LSP_ABS_PATH_OBSERVE).await;
-                                while let Some(update) = push_updates.0.next().await {
-                                    let action = lsp_store
-                                        .update(&mut cx, |this, cx| {
-                                            let Some(watcher) = this
-                                                .language_server_watched_paths
-                                                .get(&language_server_id)
-                                            else {
-                                                return ControlFlow::Break(());
-                                            };
-                                            if watcher.entity_id() != this_id {
-                                                // This watcher is no longer registered on the project, which means that we should
-                                                // cease operations.
-                                                return ControlFlow::Break(());
-                                            }
-                                            let (globs, _) = watcher
-                                                .read(cx)
-                                                .abs_paths
-                                                .get(&abs_path)
-                                                .expect(
-                                                "Watched abs path is not registered with a watcher",
-                                            );
-                                            let matching_entries = update
-                                                .into_iter()
-                                                .filter(|event| globs.is_match(&event.path))
-                                                .collect::<Vec<_>>();
-                                            this.lsp_notify_abs_paths_changed(
-                                                language_server_id,
-                                                matching_entries,
-                                            );
-                                            ControlFlow::Continue(())
-                                        })
-                                        .ok()?;
-
-                                    if action.is_break() {
-                                        break;
-                                    }
-                                }
-                                Some(())
-                            })
-                            .await;
-                        }
-                    });
-                    (abs_path, (globset, task))
-                })
-                .collect();
-            LanguageServerWatchedPaths {
-                worktree_paths: self.worktree_paths,
-                abs_paths,
-            }
-        })
-    }
-}
-
 struct LspBufferSnapshot {
     version: i32,
     snapshot: TextBufferSnapshot,
@@ -6078,9 +5843,7 @@ impl DiagnosticSummary {
 }
 
 fn glob_literal_prefix(glob: &str) -> &str {
-    let is_absolute = glob.starts_with(path::MAIN_SEPARATOR);
-
-    let mut literal_end = is_absolute as usize;
+    let mut literal_end = 0;
     for (i, part) in glob.split(path::MAIN_SEPARATOR).enumerate() {
         if part.contains(&['*', '?', '{', '}']) {
             break;
@@ -6092,7 +5855,6 @@ fn glob_literal_prefix(glob: &str) -> &str {
             literal_end += part.len();
         }
     }
-    let literal_end = literal_end.min(glob.len());
     &glob[..literal_end]
 }
 

crates/snippet_provider/src/lib.rs 🔗

@@ -169,12 +169,7 @@ impl SnippetProvider {
 
             let (mut entries, _) = watcher.await;
             while let Some(entries) = entries.next().await {
-                process_updates(
-                    this.clone(),
-                    entries.into_iter().map(|event| event.path).collect(),
-                    cx.clone(),
-                )
-                .await?;
+                process_updates(this.clone(), entries, cx.clone()).await?;
             }
             Ok(())
         })

crates/worktree/src/worktree.rs 🔗

@@ -7,7 +7,7 @@ use ::ignore::gitignore::{Gitignore, GitignoreBuilder};
 use anyhow::{anyhow, Context as _, Result};
 use clock::ReplicaId;
 use collections::{HashMap, HashSet, VecDeque};
-use fs::{copy_recursive, Fs, PathEvent, RemoveOptions, Watcher};
+use fs::{copy_recursive, Fs, RemoveOptions, Watcher};
 use futures::{
     channel::{
         mpsc::{self, UnboundedSender},
@@ -1051,11 +1051,7 @@ impl LocalWorktree {
                     watcher,
                 };
 
-                scanner
-                    .run(Box::pin(
-                        events.map(|events| events.into_iter().map(Into::into).collect()),
-                    ))
-                    .await;
+                scanner.run(events).await;
             }
         });
         let scan_state_updater = cx.spawn(|this, mut cx| async move {
@@ -3526,7 +3522,7 @@ enum BackgroundScannerPhase {
 }
 
 impl BackgroundScanner {
-    async fn run(&mut self, mut fs_events_rx: Pin<Box<dyn Send + Stream<Item = Vec<PathEvent>>>>) {
+    async fn run(&mut self, mut fs_events_rx: Pin<Box<dyn Send + Stream<Item = Vec<PathBuf>>>>) {
         use futures::FutureExt as _;
 
         // If the worktree root does not contain a git repository, then find
@@ -3607,8 +3603,7 @@ impl BackgroundScanner {
             while let Poll::Ready(Some(more_paths)) = futures::poll!(fs_events_rx.next()) {
                 paths.extend(more_paths);
             }
-            self.process_events(paths.into_iter().map(Into::into).collect())
-                .await;
+            self.process_events(paths).await;
         }
 
         // Continue processing events until the worktree is dropped.
@@ -3649,7 +3644,7 @@ impl BackgroundScanner {
                     while let Poll::Ready(Some(more_paths)) = futures::poll!(fs_events_rx.next()) {
                         paths.extend(more_paths);
                     }
-                    self.process_events(paths.into_iter().map(Into::into).collect()).await;
+                    self.process_events(paths.clone()).await;
                 }
             }
         }

crates/zed/src/main.rs 🔗

@@ -1158,13 +1158,13 @@ fn watch_themes(fs: Arc<dyn fs::Fs>, cx: &mut AppContext) {
             .await;
 
         while let Some(paths) = events.next().await {
-            for event in paths {
-                if fs.metadata(&event.path).await.ok().flatten().is_some() {
+            for path in paths {
+                if fs.metadata(&path).await.ok().flatten().is_some() {
                     if let Some(theme_registry) =
                         cx.update(|cx| ThemeRegistry::global(cx).clone()).log_err()
                     {
                         if let Some(()) = theme_registry
-                            .load_user_theme(&event.path, fs.clone())
+                            .load_user_theme(&path, fs.clone())
                             .await
                             .log_err()
                         {
@@ -1194,10 +1194,8 @@ fn watch_languages(fs: Arc<dyn fs::Fs>, languages: Arc<LanguageRegistry>, cx: &m
     cx.spawn(|_| async move {
         let (mut events, _) = fs.watch(path.as_path(), Duration::from_millis(100)).await;
         while let Some(event) = events.next().await {
-            let has_language_file = event.iter().any(|event| {
-                event
-                    .path
-                    .extension()
+            let has_language_file = event.iter().any(|path| {
+                path.extension()
                     .map(|ext| ext.to_string_lossy().as_ref() == "scm")
                     .unwrap_or(false)
             });