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src/backup/backup_info.rs: remove old prune code

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This commit is contained in:
Dietmar Maurer 2019-12-06 08:29:27 +01:00
parent 408434360b
commit 92acbd69f7
2 changed files with 2 additions and 117 deletions
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2
src/api2/admin/datastore.rs
View File

@ -314,7 +314,7 @@ fn prune(
let list = group.list_backups(&datastore.base_path())?;
let mut prune_info = BackupGroup::compute_prune_info(
let mut prune_info = compute_prune_info(
list,
param["keep-last"].as_u64(),
param["keep-daily"].as_u64(),

117
src/backup/backup_info.rs
View File

@ -3,9 +3,8 @@ use crate::tools;
use failure::*;
use regex::Regex;
use std::os::unix::io::RawFd;
use std::collections::{HashMap, HashSet};
use chrono::{DateTime, Datelike, TimeZone, SecondsFormat, Utc, Local};
use chrono::{DateTime, TimeZone, SecondsFormat, Utc};
use std::path::{PathBuf, Path};
use lazy_static::lazy_static;
@ -44,8 +43,6 @@ pub struct BackupGroup {
backup_id: String,
}
enum PruneMark { Keep, Remove }
impl BackupGroup {
pub fn new<T: Into<String>, U: Into<String>>(backup_type: T, backup_id: U) -> Self {
@ -103,118 +100,6 @@ impl BackupGroup {
Ok(list)
}
fn mark_selections<F: Fn(DateTime<Local>, &BackupInfo) -> String> (
mark: &mut HashMap<PathBuf, PruneMark>,
list: &Vec<BackupInfo>,
keep: usize,
select_id: F,
) {
let mut include_hash = HashSet::new();
let mut already_included = HashSet::new();
for info in list {
let backup_id = info.backup_dir.relative_path();
if let Some(PruneMark::Keep) = mark.get(&backup_id) {
let local_time = info.backup_dir.backup_time().with_timezone(&Local);
let sel_id: String = select_id(local_time, &info);
already_included.insert(sel_id);
}
}
for info in list {
let backup_id = info.backup_dir.relative_path();
if let Some(_) = mark.get(&backup_id) { continue; }
let local_time = info.backup_dir.backup_time().with_timezone(&Local);
let sel_id: String = select_id(local_time, &info);
if already_included.contains(&sel_id) { continue; }
if !include_hash.contains(&sel_id) {
if include_hash.len() >= keep { break; }
include_hash.insert(sel_id);
mark.insert(backup_id, PruneMark::Keep);
} else {
mark.insert(backup_id, PruneMark::Remove);
}
}
}
pub fn compute_prune_info(
mut list: Vec<BackupInfo>,
keep_last: Option<u64>,
keep_daily: Option<u64>,
keep_weekly: Option<u64>,
keep_monthly: Option<u64>,
keep_yearly: Option<u64>,
) -> Result<Vec<(BackupInfo, bool)>, Error> {
let mut mark = HashMap::new();
BackupInfo::sort_list(&mut list, false);
// remove inclomplete snapshots
let mut keep_unfinished = true;
for info in list.iter() {
// backup is considered unfinished if there is no manifest
if info.files.iter().any(|name| name == super::MANIFEST_BLOB_NAME) {
// There is a new finished backup, so there is no need
// to keep older unfinished backups.
keep_unfinished = false;
} else {
let backup_id = info.backup_dir.relative_path();
if keep_unfinished { // keep first unfinished
mark.insert(backup_id, PruneMark::Keep);
} else {
mark.insert(backup_id, PruneMark::Remove);
}
keep_unfinished = false;
}
}
if let Some(keep_last) = keep_last {
Self::mark_selections(&mut mark, &list, keep_last as usize, |_local_time, info| {
BackupDir::backup_time_to_string(info.backup_dir.backup_time)
});
}
if let Some(keep_daily) = keep_daily {
Self::mark_selections(&mut mark, &list, keep_daily as usize, |local_time, _info| {
format!("{}/{}/{}", local_time.year(), local_time.month(), local_time.day())
});
}
if let Some(keep_weekly) = keep_weekly {
Self::mark_selections(&mut mark, &list, keep_weekly as usize, |local_time, _info| {
format!("{}/{}", local_time.year(), local_time.iso_week().week())
});
}
if let Some(keep_monthly) = keep_monthly {
Self::mark_selections(&mut mark, &list, keep_monthly as usize, |local_time, _info| {
format!("{}/{}", local_time.year(), local_time.month())
});
}
if let Some(keep_yearly) = keep_yearly {
Self::mark_selections(&mut mark, &list, keep_yearly as usize, |local_time, _info| {
format!("{}/{}", local_time.year(), local_time.year())
});
}
let prune_info: Vec<(BackupInfo, bool)> = list.into_iter()
.map(|info| {
let backup_id = info.backup_dir.relative_path();
let keep = match mark.get(&backup_id) {
Some(PruneMark::Keep) => true,
_ => false,
};
(info, keep)
})
.collect();
Ok(prune_info)
}
}
/// Uniquely identify a Backup (relative to data store)