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task archive rotation: better handle non-existing archive

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if the archive file does not exist yet, we cannot rotate it, but it's not
actually an error, so just return Ok(false) to indicate no rotation took
place

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2020-10-02 15:20:10 +02:00 committed by Thomas Lamprecht
parent 04e24b14f0
commit 2d81f7b0c0
1 changed files with 6 additions and 1 deletions
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7
src/server/worker_task.rs
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@ -345,7 +345,12 @@ fn lock_task_list_files(exclusive: bool) -> Result<std::fs::File, Error> {
pub fn rotate_task_log_archive(size_threshold: u64, compress: bool, max_files: Option<usize>) -> Result<bool, Error> {
let _lock = lock_task_list_files(true)?;
let path = Path::new(PROXMOX_BACKUP_ARCHIVE_TASK_FN);
let metadata = path.metadata()?;
let metadata = match path.metadata() {
Ok(metadata) => metadata,
Err(err) if err.kind() == std::io::ErrorKind::NotFound => return Ok(false),
Err(err) => bail!("unable to open task archive - {}", err),
};
if metadata.len() > size_threshold {
let mut logrotate = LogRotate::new(PROXMOX_BACKUP_ARCHIVE_TASK_FN, compress).ok_or_else(|| format_err!("could not get archive file names"))?;
let backup_user = crate::backup::backup_user()?;