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log rotate: move basic rotation logic into module for reuse

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht
2020-10-20 10:32:15 +02:00
parent 9e870b5f39
commit 95ade8fdb5
2 changed files with 34 additions and 21 deletions
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24
src/server/worker_task.rs
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@ -1,6 +1,5 @@
use std::collections::{HashMap, VecDeque};
use std::fs::File;
use std::path::Path;
use std::io::{Read, Write, BufRead, BufReader};
use std::panic::UnwindSafe;
use std::sync::atomic::{AtomicBool, Ordering};
@ -349,26 +348,11 @@ fn lock_task_list_files(exclusive: bool) -> Result<std::fs::File, Error> {
/// rotates it if it is
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 = 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()?;
logrotate.rotate(
CreateOptions::new()
.owner(backup_user.uid)
.group(backup_user.gid),
max_files,
)?;
Ok(true)
} else {
Ok(false)
}
let mut logrotate = LogRotate::new(PROXMOX_BACKUP_ARCHIVE_TASK_FN, compress)
.ok_or(format_err!("could not get archive file names"))?;
logrotate.rotate(size_threshold, None, max_files)
}
// atomically read/update the task list, update status of finished tasks