adapt plugin to notify v5

plugins/fs-watch/src/lib.rs

@@ -1,7 +1,5 @@
-use notify::{
-    raw_watcher, watcher, DebouncedEvent, Op, RawEvent, RecommendedWatcher, RecursiveMode,
-    Watcher as _,
-};
+use notify::{Config, Event, RecommendedWatcher, RecursiveMode, Watcher};
+use notify_debouncer_mini::{new_debouncer, DebounceEventResult, Debouncer};
 use serde::{ser::Serializer, Deserialize, Serialize};
 use tauri::{
     command,
@@ -39,72 +37,33 @@ impl Serialize for Error {
 }
 
 #[derive(Default)]
-struct WatcherCollection(Mutex<HashMap<Id, (RecommendedWatcher, Vec<PathBuf>)>>);
+struct WatcherCollection(Mutex<HashMap<Id, (WatcherKind, Vec<PathBuf>)>>);
 
-#[derive(Clone, Serialize)]
-struct RawEventWrapper {
-    path: Option<PathBuf>,
-    operation: u32,
-    cookie: Option<u32>,
+enum WatcherKind {
+    Debouncer(Debouncer<RecommendedWatcher>),
+    Watcher(RecommendedWatcher),
 }
 
-#[derive(Clone, Serialize)]
-#[serde(tag = "type", content = "payload")]
-enum DebouncedEventWrapper {
-    NoticeWrite(PathBuf),
-    NoticeRemove(PathBuf),
-    Create(PathBuf),
-    Write(PathBuf),
-    Chmod(PathBuf),
-    Remove(PathBuf),
-    Rename(PathBuf, PathBuf),
-    Rescan,
-    Error {
-        error: String,
-        path: Option<PathBuf>,
-    },
-}
-
-impl From<DebouncedEvent> for DebouncedEventWrapper {
-    fn from(event: DebouncedEvent) -> Self {
-        match event {
-            DebouncedEvent::NoticeWrite(path) => Self::NoticeWrite(path),
-            DebouncedEvent::NoticeRemove(path) => Self::NoticeRemove(path),
-            DebouncedEvent::Create(path) => Self::Create(path),
-            DebouncedEvent::Write(path) => Self::Write(path),
-            DebouncedEvent::Chmod(path) => Self::Chmod(path),
-            DebouncedEvent::Remove(path) => Self::Remove(path),
-            DebouncedEvent::Rename(from, to) => Self::Rename(from, to),
-            DebouncedEvent::Rescan => Self::Rescan,
-            DebouncedEvent::Error(error, path) => Self::Error {
-                error: error.to_string(),
-                path,
-            },
-        }
-    }
-}
-
-fn watch_raw<R: Runtime>(window: Window<R>, rx: Receiver<RawEvent>, id: Id) {
+fn watch_raw<R: Runtime>(window: Window<R>, rx: Receiver<notify::Result<Event>>, id: Id) {
     spawn(move || {
         let event_name = format!("watcher://raw-event/{}", id);
         while let Ok(event) = rx.recv() {
-            let _ = window.emit(
-                &event_name,
-                RawEventWrapper {
-                    path: event.path,
-                    operation: event.op.unwrap_or_else(|_| Op::empty()).bits(),
-                    cookie: event.cookie,
-                },
-            );
+            if let Ok(event) = event {
+                // TODO: Should errors be emitted too?
+                let _ = window.emit(&event_name, event);
+            }
         }
     });
 }
 
-fn watch_debounced<R: Runtime>(window: Window<R>, rx: Receiver<DebouncedEvent>, id: Id) {
+fn watch_debounced<R: Runtime>(window: Window<R>, rx: Receiver<DebounceEventResult>, id: Id) {
     spawn(move || {
         let event_name = format!("watcher://debounced-event/{}", id);
         while let Ok(event) = rx.recv() {
-            let _ = window.emit(&event_name, DebouncedEventWrapper::from(event));
+            if let Ok(event) = event {
+                // TODO: Should errors be emitted too?
+                let _ = window.emit(&event_name, event);
+            }
         }
     });
 }
@@ -132,20 +91,21 @@ async fn watch<R: Runtime>(
 
     let watcher = if let Some(delay) = options.delay_ms {
         let (tx, rx) = channel();
-        let mut watcher = watcher(tx, Duration::from_millis(delay))?;
+        let mut debouncer = new_debouncer(Duration::from_millis(delay), None, tx)?;
+        let watcher = debouncer.watcher();
         for path in &paths {
             watcher.watch(path, mode)?;
         }
         watch_debounced(window, rx, id);
-        watcher
+        WatcherKind::Debouncer(debouncer)
     } else {
         let (tx, rx) = channel();
-        let mut watcher = raw_watcher(tx)?;
+        let mut watcher = RecommendedWatcher::new(tx, Config::default())?;
         for path in &paths {
             watcher.watch(path, mode)?;
         }
         watch_raw(window, rx, id);
-        watcher
+        WatcherKind::Watcher(watcher)
     };
 
     watchers.0.lock().unwrap().insert(id, (watcher, paths));
@@ -155,10 +115,19 @@ async fn watch<R: Runtime>(
 
 #[command]
 async fn unwatch(watchers: State<'_, WatcherCollection>, id: Id) -> Result<()> {
-    if let Some((mut watcher, paths)) = watchers.0.lock().unwrap().remove(&id) {
-        for path in paths {
-            watcher.unwatch(path)?;
-        }
+    if let Some((watcher, paths)) = watchers.0.lock().unwrap().remove(&id) {
+        match watcher {
+            WatcherKind::Debouncer(mut debouncer) => {
+                for path in paths {
+                    debouncer.watcher().unwatch(&path)?
+                }
+            }
+            WatcherKind::Watcher(mut watcher) => {
+                for path in paths {
+                    watcher.unwatch(&path)?
+                }
+            }
+        };
     }
     Ok(())
 }