New Imfs event type

src/imfs/event.rs

@@ -1,2 +1,8 @@
-// TODO: Use our own event type instead of notify's.
-pub type ImfsEvent = notify::DebouncedEvent;
+use std::path::PathBuf;
+
+#[derive(Debug)]
+pub enum ImfsEvent {
+    Modified(PathBuf),
+    Created(PathBuf),
+    Removed(PathBuf),
+}

src/imfs/imfs.rs

@@ -48,32 +48,17 @@ impl<F: ImfsFetcher> Imfs<F> {
     }
 
     pub fn commit_change(&mut self, event: &ImfsEvent) -> FsResult<()> {
-        use notify::DebouncedEvent::*;
+        use ImfsEvent::*;
 
         log::trace!("Committing Imfs change {:?}", event);
 
         match event {
-            Create(path) => {
+            Created(path) | Modified(path) => {
                 self.raise_file_changed(path)?;
             }
-            Write(path) => {
-                self.raise_file_changed(path)?;
-            }
-            Remove(path) => {
+            Removed(path) => {
                 self.raise_file_removed(path)?;
             }
-            Rename(from_path, to_path) => {
-                self.raise_file_removed(from_path)?;
-                self.raise_file_changed(to_path)?;
-            }
-            Error(err, path) => {
-                log::warn!("Filesystem error detected: {:?} on path {:?}", err, path);
-            }
-            Rescan => {
-                // FIXME: Implement rescanning
-                log::warn!("Unhandled filesystem rescan event");
-            }
-            NoticeWrite(_) | NoticeRemove(_) | Chmod(_) => {}
         }
 
         Ok(())

src/imfs/real_fetcher.rs

@@ -9,9 +9,9 @@ use std::{
     time::Duration,
 };
 
-use crossbeam_channel::{unbounded, Receiver};
+use crossbeam_channel::{unbounded, Receiver, Sender};
 use jod_thread::JoinHandle;
-use notify::{RecommendedWatcher, RecursiveMode, Watcher};
+use notify::{DebouncedEvent, RecommendedWatcher, RecursiveMode, Watcher};
 
 use super::{
     event::ImfsEvent,
@@ -58,9 +58,7 @@ impl RealFetcher {
         let handle = jod_thread::Builder::new()
             .name("notify message converter".to_owned())
             .spawn(move || {
-                notify_receiver
-                    .into_iter()
-                    .for_each(|event| sender.send(event).unwrap());
+                converter_thread(notify_receiver, sender);
             })
             .expect("Could not start message converter thread");
 
@@ -84,6 +82,41 @@ impl RealFetcher {
     }
 }
 
+fn converter_thread(notify_receiver: mpsc::Receiver<DebouncedEvent>, sender: Sender<ImfsEvent>) {
+    notify_receiver.into_iter().for_each(|event| {
+        use DebouncedEvent::*;
+
+        match event {
+            Create(path) => sender.send(ImfsEvent::Created(path)).unwrap(),
+            Write(path) => sender.send(ImfsEvent::Modified(path)).unwrap(),
+            Remove(path) => sender.send(ImfsEvent::Removed(path)).unwrap(),
+            Rename(from_path, to_path) => {
+                sender.send(ImfsEvent::Created(from_path)).unwrap();
+                sender.send(ImfsEvent::Removed(to_path)).unwrap();
+            }
+            Rescan => {
+                log::warn!("Unhandled filesystem rescan event.");
+                log::warn!(
+                    "Please file an issue! Rojo may need to handle this case, but does not yet."
+                );
+            }
+            Error(err, maybe_path) => {
+                log::warn!("Unhandled filesystem error: {}", err);
+
+                match maybe_path {
+                    Some(path) => log::warn!("On path {}", path.display()),
+                    None => log::warn!("No path was associated with this error."),
+                }
+
+                log::warn!(
+                    "Rojo may need to handle this. If this happens again, please file an issue!"
+                );
+            }
+            NoticeWrite(_) | NoticeRemove(_) | Chmod(_) => {}
+        }
+    });
+}
+
 impl ImfsFetcher for RealFetcher {
     fn file_type(&mut self, path: &Path) -> io::Result<FileType> {
         let metadata = fs::metadata(path)?;