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#!/usr/bin/python
#
# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
# pylint: disable-msg=C0103,W0403
from zope.component import getUtility
from canonical.database.sqlbase import sqlvalues
from canonical.launchpad.webapp.interfaces import (
DEFAULT_FLAVOR,
IStoreSelector,
MAIN_STORE,
)
from lp.services.scripts.base import LaunchpadCronScript
from lp.soyuz.enums import ArchivePurpose
# PPAs that we never want to expire.
BLACKLISTED_PPAS = """
adobe-isv
chelsea-team
dennis-team
elvis-team
fluendo-isv
natick-team
netbook-remix-team
netbook-team
oem-solutions-group
payson
transyl
ubuntu-mobile
wheelbarrow
bzr
bzr-beta-ppa
bzr-nightly-ppa
""".split()
class ArchiveExpirer(LaunchpadCronScript):
"""Helper class for expiring old PPA binaries.
Any PPA binary older than 30 days that is superseded or deleted
will be marked for immediate expiry.
"""
blacklist = BLACKLISTED_PPAS
def add_my_options(self):
"""Add script command line options."""
self.parser.add_option(
"-n", "--dry-run", action="store_true",
dest="dryrun", metavar="DRY_RUN", default=False,
help="If set, no transactions are committed")
self.parser.add_option(
"-e", "--expire-after", action="store", type="int",
dest="num_days", metavar="DAYS", default=15,
help=("The number of days after which to expire binaries. "
"Must be specified."))
def determineSourceExpirables(self, num_days):
"""Return expirable libraryfilealias IDs."""
stay_of_execution = '%d days' % num_days
archive_types = (ArchivePurpose.PPA, ArchivePurpose.PARTNER)
# The subquery here has to repeat the checks for privacy and
# blacklisting on *other* publications that are also done in
# the main loop for the archive being considered.
results = self.store.execute("""
SELECT lfa.id
FROM
LibraryFileAlias AS lfa,
Archive,
SourcePackageReleaseFile AS sprf,
SourcePackageRelease AS spr,
SourcePackagePublishingHistory AS spph
WHERE
lfa.id = sprf.libraryfile
AND spr.id = sprf.sourcepackagerelease
AND spph.sourcepackagerelease = spr.id
AND spph.dateremoved < (
CURRENT_TIMESTAMP AT TIME ZONE 'UTC' - interval %s)
AND spph.archive = archive.id
AND archive.purpose IN %s
AND lfa.expires IS NULL
EXCEPT
SELECT sprf.libraryfile
FROM
SourcePackageRelease AS spr,
SourcePackageReleaseFile AS sprf,
SourcePackagePublishingHistory AS spph,
Archive AS a,
Person AS p
WHERE
spr.id = sprf.sourcepackagerelease
AND spph.sourcepackagerelease = spr.id
AND spph.archive = a.id
AND p.id = a.owner
AND (
(p.name IN %s AND a.purpose = %s)
OR a.private IS TRUE
OR a.purpose NOT IN %s
OR dateremoved >
CURRENT_TIMESTAMP AT TIME ZONE 'UTC' - interval %s
OR dateremoved IS NULL);
""" % sqlvalues(
stay_of_execution, archive_types, self.blacklist,
ArchivePurpose.PPA, archive_types, stay_of_execution))
lfa_ids = results.get_all()
return lfa_ids
def determineBinaryExpirables(self, num_days):
"""Return expirable libraryfilealias IDs."""
stay_of_execution = '%d days' % num_days
archive_types = (ArchivePurpose.PPA, ArchivePurpose.PARTNER)
# The subquery here has to repeat the checks for privacy and
# blacklisting on *other* publications that are also done in
# the main loop for the archive being considered.
results = self.store.execute("""
SELECT lfa.id
FROM
LibraryFileAlias AS lfa,
Archive,
BinaryPackageFile AS bpf,
BinaryPackageRelease AS bpr,
BinaryPackagePublishingHistory AS bpph
WHERE
lfa.id = bpf.libraryfile
AND bpr.id = bpf.binarypackagerelease
AND bpph.binarypackagerelease = bpr.id
AND bpph.dateremoved < (
CURRENT_TIMESTAMP AT TIME ZONE 'UTC' -
interval %(stay_of_execution)s)
AND bpph.archive = archive.id
AND archive.purpose IN %(archive_types)s
AND lfa.expires IS NULL
EXCEPT
SELECT bpf.libraryfile
FROM
BinaryPackageRelease AS bpr,
BinaryPackageFile AS bpf,
BinaryPackagePublishingHistory AS bpph,
Archive AS a,
Person AS p
WHERE
bpr.id = bpf.binarypackagerelease
AND bpph.binarypackagerelease = bpr.id
AND bpph.archive = a.id
AND p.id = a.owner
AND (
(p.name IN %(blacklist)s AND a.purpose = %(ppa)s)
OR a.private IS TRUE
OR a.purpose NOT IN %(archive_types)s
OR dateremoved > (
CURRENT_TIMESTAMP AT TIME ZONE 'UTC' -
interval %(stay_of_execution)s)
OR dateremoved IS NULL)
""" % sqlvalues(
stay_of_execution=stay_of_execution,
archive_types=archive_types,
blacklist=self.blacklist,
ppa=ArchivePurpose.PPA))
lfa_ids = results.get_all()
return lfa_ids
def main(self):
self.logger.info('Starting the PPA binary expiration')
num_days = self.options.num_days
self.logger.info("Expiring files up to %d days ago" % num_days)
self.store = getUtility(IStoreSelector).get(
MAIN_STORE, DEFAULT_FLAVOR)
lfa_ids = self.determineSourceExpirables(num_days)
lfa_ids.extend(self.determineBinaryExpirables(num_days))
batch_count = 0
batch_limit = 500
for id in lfa_ids:
self.logger.info("Expiring libraryfilealias %s" % id)
self.store.execute("""
UPDATE libraryfilealias
SET expires = CURRENT_TIMESTAMP AT TIME ZONE 'UTC'
WHERE id = %s
""" % id)
batch_count += 1
if batch_count % batch_limit == 0:
if self.options.dryrun:
self.logger.info(
"%s done, not committing (dryrun mode)" % batch_count)
self.txn.abort()
else:
self.logger.info(
"%s done, committing transaction" % batch_count)
self.txn.commit()
if self.options.dryrun:
self.txn.abort()
else:
self.txn.commit()
self.logger.info('Finished PPA binary expiration')
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