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task archive rotation: better handle non-existing archive 

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()?;