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#!/usr/bin/env python
# Copyright 2005 Canonical Ltd. All rights reserved.
# This script updates the cached source package information in the system.
# We use this for fast source package searching (as opposed to joining
# through gazillions of publishing tables).
import _pythonpath
import sys
from optparse import OptionParser
from zope.component import getUtility
from canonical.lp import initZopeless
from canonical.launchpad.interfaces import IDistributionSet
from canonical.launchpad.scripts import (
execute_zcml_for_scripts, logger_options, logger)
from canonical.launchpad.scripts.lockfile import LockFile
from canonical.config import config
default_lock_file = '/var/lock/launchpad-spcache.lock'
def parse_options(args):
"""Parse a set of command line options.
Return an optparse.Values object.
"""
parser = OptionParser()
parser.add_option("-l", "--lockfile", dest="lockfilename",
default=default_lock_file,
help="The file the script should use to lock the process.")
# Add the verbose/quiet options.
logger_options(parser)
(options, args) = parser.parse_args(args)
return options
def main(argv):
options = parse_options(argv[1:])
# Get the global logger for this task.
logger_object = logger(options, 'launchpad-stats')
# Create a lock file so we don't have two daemons running at the same time.
lockfile = LockFile(options.lockfilename, logger=logger_object)
try:
lockfile.acquire()
except OSError:
logger_object.info("lockfile %s already exists, exiting",
options.lockfilename)
return 1
try:
# Setup zcml machinery to be able to use getUtility
execute_zcml_for_scripts()
ztm = initZopeless(dbuser=config.statistician.dbuser)
# Do the cache update
logger_object.debug('Starting the sp cache update')
distroset = getUtility(IDistributionSet)
for distro in distroset:
for distrorelease in distro.releases:
logger_object.info('%s starting' % distrorelease.name)
distrorelease.updatePackageCount()
ztm.commit()
distrorelease.removeOldCacheItems()
ztm.commit()
distrorelease.updateCompletePackageCache(ztm=ztm)
ztm.commit()
for arch in distrorelease.architectures:
arch.updatePackageCount()
ztm.commit()
distro.removeOldCacheItems()
ztm.commit()
distro.updateCompleteSourcePackageCache(ztm=ztm)
ztm.commit()
logger_object.info('%s done' % distro.name)
ztm.commit()
logger_object.debug('Finished the sp cache update')
return 0
finally:
lockfile.release()
if __name__ == '__main__':
sys.exit(main(sys.argv))
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