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Delete files immediately, instead of collecting into vector

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This commit is contained in:
Dániel Buga 2020-10-28 17:21:02 +01:00
parent 2fa359814a
commit a8803d3c04
1 changed files with 19 additions and 22 deletions
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41
compiler/rustc_incremental/src/persist/fs.rs
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@ -765,7 +765,6 @@ pub fn garbage_collect_session_directories(sess: &Session) -> io::Result<()> {
// Now garbage collect the valid session directories.
let mut deletion_candidates = vec![];
let mut definitely_delete = vec![];
for (lock_file_name, directory_name) in &lock_file_to_session_dir {
debug!("garbage_collect_session_directories() - inspecting: {}", directory_name);
@ -842,8 +841,11 @@ pub fn garbage_collect_session_directories(sess: &Session) -> io::Result<()> {
successfully acquired lock"
);
// Note that we are holding on to the lock
definitely_delete.push((crate_directory.join(directory_name), Some(lock)));
delete_old(sess, &crate_directory.join(directory_name));
// Let's make it explicit that the file lock is released at this point,
// or rather, that we held on to it until here
mem::drop(lock);
}
Err(_) => {
debug!(
@ -880,28 +882,23 @@ pub fn garbage_collect_session_directories(sess: &Session) -> io::Result<()> {
mem::drop(lock);
}
for (path, lock) in definitely_delete {
debug!("garbage_collect_session_directories() - deleting `{}`", path.display());
if let Err(err) = safe_remove_dir_all(&path) {
sess.warn(&format!(
"Failed to garbage collect incremental \
compilation session directory `{}`: {}",
path.display(),
err
));
} else {
delete_session_dir_lock_file(sess, &lock_file_path(&path));
}
// Let's make it explicit that the file lock is released at this point,
// or rather, that we held on to it until here
mem::drop(lock);
}
Ok(())
}
fn delete_old(sess: &Session, path: &Path) {
debug!("garbage_collect_session_directories() - deleting `{}`", path.display());
if let Err(err) = safe_remove_dir_all(&path) {
sess.warn(&format!(
"Failed to garbage collect incremental compilation session directory `{}`: {}",
path.display(),
err
));
} else {
delete_session_dir_lock_file(sess, &lock_file_path(&path));
}
}
fn all_except_most_recent(
deletion_candidates: Vec<(SystemTime, PathBuf, Option<flock::Lock>)>,
) -> FxHashMap<PathBuf, Option<flock::Lock>> {