src/backup/datastore.rs: split BackupInfo

This commit is contained in:
Dietmar Maurer 2019-03-01 12:32:10 +01:00
parent dcd15d10bb
commit 38b0dfa511
3 changed files with 55 additions and 51 deletions

View File

@ -6,6 +6,7 @@ use crate::api_schema::router::*;
use serde_json::{json, Value};
use std::collections::{HashSet, HashMap};
use chrono::{DateTime, Datelike, Local};
use std::path::PathBuf;
//use hyper::StatusCode;
//use hyper::rt::{Future, Stream};
@ -21,7 +22,7 @@ fn group_backups(backup_list: Vec<BackupInfo>) -> HashMap<String, Vec<BackupInfo
let mut group_hash = HashMap::new();
for info in backup_list {
let group_id = format!("{}/{}", info.backup_type, info.backup_id);
let group_id = format!("{}/{}", info.backup_dir.backup_type, info.backup_dir.backup_id);
let time_list = group_hash.entry(group_id).or_insert(vec![]);
time_list.push(info);
}
@ -30,16 +31,16 @@ fn group_backups(backup_list: Vec<BackupInfo>) -> HashMap<String, Vec<BackupInfo
}
fn mark_selections<F: Fn(DateTime<Local>, &BackupInfo) -> String> (
mark: &mut HashSet<String>,
mark: &mut HashSet<PathBuf>,
list: &Vec<BackupInfo>,
keep: usize,
select_id: F,
){
let mut hash = HashSet::new();
for info in list {
let local_time = info.backup_time.with_timezone(&Local);
let local_time = info.backup_dir.backup_time.with_timezone(&Local);
if hash.len() >= keep as usize { break; }
let backup_id = info.unique_id();
let backup_id = info.backup_dir.relative_path();
let sel_id: String = select_id(local_time, &info);
if !hash.contains(&sel_id) {
hash.insert(sel_id);
@ -70,12 +71,11 @@ fn prune(
let mut mark = HashSet::new();
list.sort_unstable_by(|a, b| b.backup_time.cmp(&a.backup_time)); // new backups first
list.sort_unstable_by(|a, b| b.backup_dir.backup_time.cmp(&a.backup_dir.backup_time)); // new backups first
if let Some(keep_last) = param["keep-last"].as_u64() {
list.iter().take(keep_last as usize).for_each(|info| {
let backup_id = format!(" {}/{}/{}", info.backup_type, info.backup_id, info.backup_time.timestamp());
mark.insert(backup_id);
mark.insert(info.backup_dir.relative_path());
});
}
@ -103,12 +103,13 @@ fn prune(
});
}
let mut remove_list: Vec<&BackupInfo> = list.iter().filter(|info| !mark.contains(&info.unique_id())).collect();
let mut remove_list: Vec<&BackupInfo> = list.iter()
.filter(|info| !mark.contains(&info.backup_dir.relative_path())).collect();
remove_list.sort_unstable_by(|a, b| a.backup_time.cmp(&b.backup_time)); // oldest backups first
remove_list.sort_unstable_by(|a, b| a.backup_dir.backup_time.cmp(&b.backup_dir.backup_time)); // oldest backups first
for info in remove_list {
datastore.remove_backup_dir(&info.backup_type, &info.backup_id, info.backup_time)?;
datastore.remove_backup_dir(&info.backup_dir)?;
}
}
@ -222,9 +223,9 @@ fn get_backup_list(
for info in datastore.list_backups()? {
list.push(json!({
"backup_type": info.backup_type,
"backup_id": info.backup_id,
"backup_time": info.backup_time.timestamp(),
"backup_type": info.backup_dir.backup_type,
"backup_id": info.backup_dir.backup_id,
"backup_time": info.backup_dir.backup_time.timestamp(),
"files": info.files,
}));
}

View File

@ -145,7 +145,13 @@ fn download_catar(
let datastore = DataStore::lookup_datastore(store)?;
let mut path = datastore.get_backup_dir(backup_type, backup_id, backup_time);
let backup_dir = BackupDir {
backup_type: backup_type.to_string(),
backup_id: backup_id.to_string(),
backup_time,
};
let mut path = backup_dir.relative_path();
let mut full_archive_name = PathBuf::from(archive_name);
full_archive_name.set_extension("didx");

View File

@ -26,25 +26,44 @@ pub struct DataStore {
gc_mutex: Mutex<bool>,
}
/// Detailed Backup Information
/// Uniquely identify backups (relative to data store)
#[derive(Debug)]
pub struct BackupInfo {
pub struct BackupDir {
/// Type of backup
pub backup_type: String,
/// Unique (for this type) ID
pub backup_id: String,
/// Backup timestamp
pub backup_time: DateTime<Utc>,
}
impl BackupDir {
pub fn relative_path(&self) -> PathBuf {
let mut relative_path = PathBuf::new();
relative_path.push(&self.backup_type);
relative_path.push(&self.backup_id);
let date_str = self.backup_time.format("%Y-%m-%dT%H:%M:%S").to_string();
relative_path.push(&date_str);
relative_path
}
}
/// Detailed Backup Information
#[derive(Debug)]
pub struct BackupInfo {
/// the backup directory
pub backup_dir: BackupDir,
/// List of data files
pub files: Vec<String>,
}
impl BackupInfo {
pub fn unique_id(&self) -> String {
format!("{}/{}/{}", self.backup_type, self.backup_id, self.backup_time.timestamp())
}
}
lazy_static!{
static ref datastore_map: Mutex<HashMap<String, Arc<DataStore>>> = Mutex::new(HashMap::new());
@ -153,35 +172,11 @@ impl DataStore {
self.chunk_store.base_path()
}
pub fn get_backup_dir(
&self,
backup_type: &str,
backup_id: &str,
backup_time: DateTime<Utc>,
) -> PathBuf {
let mut relative_path = PathBuf::new();
relative_path.push(backup_type);
relative_path.push(backup_id);
let date_str = backup_time.format("%Y-%m-%dT%H:%M:%S").to_string();
relative_path.push(&date_str);
relative_path
}
/// Remove a backup directory including all content
pub fn remove_backup_dir(
&self,
backup_type: &str,
backup_id: &str,
backup_time: DateTime<Utc>,
pub fn remove_backup_dir(&self, backup_dir: &BackupDir,
) -> Result<(), io::Error> {
let relative_path = self.get_backup_dir(backup_type, backup_id, backup_time);
let relative_path = backup_dir.relative_path();
let mut full_path = self.base_path();
full_path.push(&relative_path);
@ -253,9 +248,11 @@ impl DataStore {
})?;
list.push(BackupInfo {
backup_type: backup_type.to_owned(),
backup_id: backup_id.to_owned(),
backup_time: dt,
backup_dir: BackupDir {
backup_type: backup_type.to_owned(),
backup_id: backup_id.to_owned(),
backup_time: dt,
},
files,
});