def purge_backupset(backupset, force=False, all_backups=False):
"""Purge a whole backupset either entirely or per the configured
retention count
:param backupset: Backupset object to purge
:param force: Force the purge - this is not a dry-run
:param all_backupsets: purge all backups regardless of configured
retention count
"""
if all_backups:
retention_count = 0
else:
try:
config = hollandcfg.backupset(backupset.name)
config.validate_config(CONFIGSPEC, suppress_warnings=True)
except (IOError, ConfigError) as exc:
LOG.error("Failed to load backupset '%s': %s", backupset.name, exc)
LOG.error("Aborting, because I could not tell how many backups to "
"preserve.")
LOG.error("You can still purge the backupset by using the --all "
"option or specifying specific backups to purge")
return 1
retention_count = config['holland:backup']['backups-to-keep']
LOG.info("Evaluating purge for backupset %s", backupset.name)
LOG.info("Retaining up to %d backup%s", retention_count,
's'[0:bool(retention_count)])
backups = []
bytes = 0
backup_list = backupset.list_backups(reverse=True)
for backup in itertools.islice(backup_list, retention_count, None):
backups.append(backup)
config = backup.config['holland:backup']
bytes += int(config['on-disk-size'])
LOG.info(" %d total backups", len(backup_list))
for backup in backup_list:
LOG.info(" * %s", backup.path)
LOG.info(" %d backups to keep", len(backup_list) - len(backups))
for backup in backup_list[0:-len(backups)]:
LOG.info(" + %s", backup.path)
LOG.info(" %d backups to purge", len(backups))
for backup in backups:
LOG.info(" - %s", backup.path)
LOG.info(" %s total to purge", format_bytes(bytes))
if force:
count = 0
for backup in backupset.purge(retention_count):
count += 1
LOG.info("Purged %s", backup.name)
if count == 0:
LOG.info("No backups purged.")
else:
LOG.info("Purged %d backup%s", count, 's'[0:bool(count)])
else:
LOG.info("Skipping purge in dry-run mode.")
backupset.update_symlinks()
def purge_backupset(backupset, force=False, all_backups=False):
"""Purge a whole backupset either entirely or per the configured
retention count
:param backupset: Backupset object to purge
:param force: Force the purge - this is not a dry-run
:param all_backupsets: purge all backups regardless of configured
retention count
"""
if all_backups:
retention_count = 0
else:
try:
config = hollandcfg.backupset(backupset.name)
config.validate_config(CONFIGSPEC, suppress_warnings=True)
except (IOError, ConfigError), exc:
LOG.error("Failed to load backupset '%s': %s", backupset.name, exc)
LOG.error("Aborting, because I could not tell how many backups to "
"preserve.")
LOG.error("You can still purge the backupset by using the --all "
"option or specifying specific backups to purge")
return 1
retention_count = config['holland:backup']['backups-to-keep']
def run(self, cmd, opts, *backupsets):
if not backupsets:
backupsets = hollandcfg.lookup("holland.backupsets")
# strip empty items from backupsets list
backupsets = [name for name in backupsets if name]
if not backupsets:
LOG.info("Nothing to backup")
return 1
runner = BackupRunner(spool)
# dry-run implies no-lock
if opts.dry_run:
opts.no_lock = True
# don't purge if doing a dry-run, or when simultaneous backups may be running
if not opts.no_lock:
purge_mgr = PurgeManager()
runner.register_cb("before-backup", purge_mgr)
runner.register_cb("after-backup", purge_mgr)
runner.register_cb("failed-backup", purge_backup)
runner.register_cb("after-backup", report_low_space)
if not opts.dry_run:
runner.register_cb("before-backup", call_hooks)
runner.register_cb("after-backup", call_hooks)
runner.register_cb("failed-backup", call_hooks)
error = 1
LOG.info("--- Starting %s run ---", opts.dry_run and "dry" or "backup")
for name in backupsets:
try:
config = hollandcfg.backupset(name)
# ensure we have at least an empty holland:backup section
config.setdefault("holland:backup", {})
except (SyntaxError, IOError), exc:
LOG.error("Could not load backupset '%s': %s", name, exc)
break
if not opts.no_lock:
lock = Lock(config.filename)
try:
lock.acquire()
LOG.debug("Set advisory lock on %s", lock.path)
except LockError:
LOG.debug("Unable to acquire advisory lock on %s", lock.path)
LOG.error("Another holland backup process is already " "running backupset '%s'. Aborting.", name)
break
try:
try:
runner.backup(name, config, opts.dry_run)
except BackupError, exc:
LOG.error("Backup failed: %s", exc.args[0])
break
except ConfigError, exc:
break
def run(self, cmd, opts, *backupsets):
if not backupsets:
backupsets = hollandcfg.lookup('holland.backupsets')
# strip empty items from backupsets list
backupsets = [name for name in backupsets if name]
if not backupsets:
LOG.info("Nothing to backup")
return 1
runner = BackupRunner(spool)
# dry-run implies no-lock
if opts.dry_run:
opts.no_lock = True
# don't purge if doing a dry-run, or when simultaneous backups may be running
if not opts.no_lock:
purge_mgr = PurgeManager()
runner.register_cb('before-backup', purge_mgr)
runner.register_cb('after-backup', purge_mgr)
runner.register_cb('failed-backup', purge_backup)
runner.register_cb('after-backup', report_low_space)
if not opts.dry_run:
runner.register_cb('before-backup', call_hooks)
runner.register_cb('after-backup', call_hooks)
runner.register_cb('failed-backup', call_hooks)
error = 1
LOG.info("--- Starting %s run ---", opts.dry_run and 'dry' or 'backup')
for name in backupsets:
try:
config = hollandcfg.backupset(name)
# ensure we have at least an empty holland:backup section
config.setdefault('holland:backup', {})
except (SyntaxError, IOError), exc:
LOG.error("Could not load backupset '%s': %s", name, exc)
break
if not opts.no_lock:
lock = Lock(config.filename)
try:
lock.acquire()
LOG.debug("Set advisory lock on %s", lock.path)
except LockError:
LOG.debug("Unable to acquire advisory lock on %s",
lock.path)
LOG.error("Another holland backup process is already "
"running backupset '%s'. Aborting.", name)
break
try:
try:
runner.backup(name, config, opts.dry_run)
except BackupError, exc:
LOG.error("Backup failed: %s", exc.args[0])
break
except ConfigError, exc:
break
def run(self, cmd, opts, *backupsets):
if not backupsets:
backupsets = hollandcfg.lookup('holland.backupsets')
# strip empty items from backupsets list
backupsets = [name for name in backupsets if name]
if not backupsets:
LOG.info("Nothing to backup")
return 1
runner = BackupRunner(spool)
# dry-run implies no-lock
if opts.dry_run:
opts.no_lock = True
# don't purge if doing a dry-run, or when simultaneous backups may be running
if not opts.no_lock:
purge_mgr = PurgeManager()
runner.register_cb('pre-backup', purge_mgr)
runner.register_cb('post-backup', purge_mgr)
runner.register_cb('backup-failure', purge_backup)
runner.register_cb('post-backup', report_low_space)
runner.register_cb('pre-backup', call_hooks)
runner.register_cb('post-backup', call_hooks)
runner.register_cb('backup-failure', call_hooks)
error = 1
LOG.info("--- Starting %s run ---", opts.dry_run and 'dry' or 'backup')
for name in backupsets:
try:
config = hollandcfg.backupset(name)
# ensure we have at least an empty holland:backup section
config.setdefault('holland:backup', {})
except (SyntaxError, IOError), exc:
LOG.error("Could not load backupset '%s': %s", name, exc)
break
if not opts.no_lock:
lock = Lock(config.filename)
try:
lock.acquire()
LOG.info("Acquired lock %s : '%s'", lock.path, lock.lock.name)
except LockError:
LOG.error("Failed to acquire lock on backupset %s (%s)",
name, config.filename)
break
try:
try:
runner.backup(name, config, opts.dry_run)
except BackupError, exc:
LOG.error("Backup failed: %s", exc.args[0])
break
except ConfigError, exc:
break
