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better error handling

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Bernardo 2019-01-16 18:42:55 +01:00 • committed by Aleksey Kladov
parent b0f7e72c49
commit abd8ccefa4
1 changed files with 16 additions and 4 deletions
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20
crates/ra_vfs/src/lib.rs
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@ -86,7 +86,7 @@ pub struct Vfs {
pending_changes: Vec<VfsChange>,
worker: io::Worker,
worker_handle: WorkerHandle,
watcher: Watcher,
watcher: Option<Watcher>,
}
impl fmt::Debug for Vfs {
@ -99,7 +99,13 @@ impl Vfs {
pub fn new(mut roots: Vec<PathBuf>) -> (Vfs, Vec<VfsRoot>) {
let (worker, worker_handle) = io::start();
let watcher = Watcher::start(worker.inp.clone()).unwrap(); // TODO return Result?
let watcher = match Watcher::start(worker.inp.clone()) {
Ok(watcher) => Some(watcher),
Err(e) => {
log::error!("could not start watcher: {}", e);
None
}
};
let mut res = Vfs {
roots: Arena::default(),
@ -134,7 +140,11 @@ impl Vfs {
filter: Box::new(filter),
};
res.worker.inp.send(task).unwrap();
res.watcher.watch(path).unwrap();
if let Some(ref mut watcher) = res.watcher {
if let Err(e) = watcher.watch(path) {
log::warn!("could not watch \"{}\": {}", path.display(), e);
}
}
}
let roots = res.roots.iter().map(|(id, _)| id).collect();
(res, roots)
@ -350,7 +360,9 @@ impl Vfs {
/// Sutdown the VFS and terminate the background watching thread.
pub fn shutdown(self) -> thread::Result<()> {
let _ = self.watcher.shutdown();
if let Some(watcher) = self.watcher {
let _ = watcher.shutdown();
}
let _ = self.worker.shutdown();
self.worker_handle.shutdown()
}