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Code Issues Releases Wiki Activity

More purge improvements

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This commit is contained in:
Jonas Borgström 2011-08-12 08:49:01 +02:00
parent 86a4353d32
commit 1c207d5686
2 changed files with 33 additions and 52 deletions
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46
darc/archiver.py
View file

@ -1,5 +1,5 @@
import argparse
from datetime import datetime, timedelta
from datetime import datetime
from operator import attrgetter
import os
import stat
@ -11,7 +11,7 @@
from .key import Key
from .helpers import location_validator, format_time, \
format_file_mode, IncludePattern, ExcludePattern, exclude_path, to_localtime, \
get_cache_dir, format_timedelta, Purger
get_cache_dir, format_timedelta, purge_split
from .remote import StoreServer, RemoteStore
class Archiver(object):
@ -246,38 +246,24 @@ def do_purge(self, args):
if args.prefix:
archives = [archive for archive in archives if archive.name.startswith(args.prefix)]
purger = Purger()
for archive in archives:
purger.insert(to_localtime(archive.ts).date(), archive)
archives, to_delete = purger.purge(len(purger.items))
if args.yearly:
purger = Purger()
for archive in archives:
purger.insert(to_localtime(archive.ts).strftime('%Y'), archive)
yearly, archives = purger.purge(args.yearly)
if args.monthly:
purger = Purger()
for archive in archives:
purger.insert(to_localtime(archive.ts).strftime('%Y-%m'), archive)
monthly, archives = purger.purge(args.monthly)
if args.weekly:
purger = Purger()
for archive in archives:
purger.insert(to_localtime(archive.ts).strftime('%Y-%V'), archive)
weekly, archives = purger.purge(args.weekly)
if args.daily:
daily = archives[-args.daily:]
archives = archives[:-args.daily]
to_delete += archives
daily, archives = purge_split(archives, '%Y-%m-%d', args.daily, reverse=True)
if args.weekly:
weekly, archives = purge_split(archives, '%Y-%V', args.weekly, reverse=True)
if args.monthly:
monthly, archives = purge_split(archives, '%Y-%m', args.monthly, reverse=True)
if args.yearly:
yearly, archives = purge_split(archives, '%Y', args.weekly, reverse=True)
to_delete = archives
for i, archive in enumerate(yearly):
self.print_verbose('Keeping "%s" as yearly archive %d' % (archive.name, i + 1))
for i, archive in enumerate(monthly):
self.print_verbose('Keeping "%s" as monthly archive %d' % (archive.name, i + 1))
for i, archive in enumerate(weekly):
self.print_verbose('Keeping "%s" as weekly archive %d' % (archive.name, i + 1))
for i, archive in enumerate(daily):
self.print_verbose('Keeping "%s" as daily archive %d' % (archive.name, i + 1))
for i, archive in enumerate(weekly):
self.print_verbose('Keeping "%s" as weekly archive %d' % (archive.name, i + 1))
for i, archive in enumerate(monthly):
self.print_verbose('Keeping "%s" as monthly archive %d' % (archive.name, i + 1))
for i, archive in enumerate(yearly):
self.print_verbose('Keeping "%s" as yearly archive %d' % (archive.name, i + 1))
for archive in to_delete:
if args.really:
self.print_verbose('Purging archive "%s"', archive.name)

39
darc/helpers.py
View file

@ -14,28 +14,23 @@
import urllib
class Purger(object):
"""Purging helper"""
def __init__(self):
self.items = {}
def insert(self, key, value):
self.items.setdefault(key, [])
self.items[key].append(value)
def purge(self, n, reverse=False):
keep = []
delete = []
for key, values in sorted(self.items.items(), reverse=reverse):
if n:
values.sort(key=attrgetter('ts'), reverse=reverse)
keep.append(values[0])
delete += values[1:]
n -= 1
else:
delete += values
return keep, delete
def purge_split(archives, pattern, n, reverse=False):
items = {}
keep = []
delete = []
for a in archives:
key = to_localtime(a.ts).strftime(pattern)
items.setdefault(key, [])
items[key].append(a)
for key, values in sorted(items.items(), reverse=reverse):
if n:
values.sort(key=attrgetter('ts'), reverse=reverse)
keep.append(values[0])
delete += values[1:]
n -= 1
else:
delete += values
return keep, delete
class Statistics(object):