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Update dependencies and enhance logging in memofs

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- Bump versions of `clap` and `zerocopy` packages in Cargo.lock.
- Add `log` dependency to memofs Cargo.toml.
- Improve logging in the file watcher thread to capture errors and trace events, enhancing reliability and debugging capabilities.
This commit is contained in:
Joe 2026-01-29 11:37:21 -06:00
parent 9622753c24
commit d002c4e821
3 changed files with 50 additions and 17 deletions
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47
crates/memofs/src/std_backend.rs
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@ -24,26 +24,57 @@ impl StdBackend {
let (tx, rx) = crossbeam_channel::unbounded();
thread::spawn(move || {
log::trace!("File watcher thread started");
for event in notify_rx {
match event {
let send_result = match event {
DebouncedEvent::Create(path) => {
tx.send(VfsEvent::Create(path))?;
tx.send(VfsEvent::Create(path))
}
DebouncedEvent::Write(path) => {
tx.send(VfsEvent::Write(path))?;
tx.send(VfsEvent::Write(path))
}
DebouncedEvent::Remove(path) => {
tx.send(VfsEvent::Remove(path))?;
tx.send(VfsEvent::Remove(path))
}
DebouncedEvent::Rename(from, to) => {
tx.send(VfsEvent::Remove(from))?;
tx.send(VfsEvent::Create(to))?;
tx.send(VfsEvent::Remove(from))
.and_then(|_| tx.send(VfsEvent::Create(to)))
}
_ => {}
DebouncedEvent::Error(err, path) => {
log::error!(
"File watcher error: {:?} (path: {:?}). \
File watching is no longer reliable.",
err,
path
);
std::process::exit(1);
}
DebouncedEvent::Rescan => {
log::error!(
"File watcher requested rescan due to too many changes. \
File watching is no longer reliable."
);
std::process::exit(1);
}
// NoticeWrite and NoticeRemove are pre-debounce notifications, skip them
DebouncedEvent::NoticeWrite(_) | DebouncedEvent::NoticeRemove(_) => continue,
// Chmod events are not relevant for our purposes
DebouncedEvent::Chmod(_) => continue,
};
if let Err(err) = send_result {
log::error!(
"File watcher thread failed to send event: {}. \
File watching is no longer reliable.",
err
);
std::process::exit(1);
}
}
Result::<(), crossbeam_channel::SendError<VfsEvent>>::Ok(())
log::error!("File watcher thread has terminated unexpectedly.");
std::process::exit(1);
});
Self {