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#!/usr/bin/env python
# Copyright 2004-2005 Canonical Ltd. All rights reserved.
import _pythonpath
import sys
from optparse import OptionParser
from contrib.glock import GlobalLock, LockAlreadyAcquired
from canonical.config import config
from canonical.lp import initZopeless
from canonical.launchpad.scripts import (execute_zcml_for_scripts,
logger_options, logger)
from canonical.launchpad.scripts.rosetta import ImportProcess
default_lock = '/var/lock/launchpad-poimport.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="lockfile",
default=default_lock,
help="The lock 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, 'rosetta-poimport')
# Create a lock so we don't have two daemons running at the same time.
lock = GlobalLock(options.lockfile)
try:
lock.acquire(blocking=False)
except LockAlreadyAcquired:
logger_object.info("lock %s already exists, exiting",
options.lockfile)
return 0
try:
# Setup zcml machinery to be able to use getUtility
execute_zcml_for_scripts()
ztm = initZopeless(dbuser=config.rosetta.poimport.dbuser)
# Do the import of all pending files from the queue.
process = ImportProcess(ztm, logger_object)
logger_object.debug('Starting the import process')
process.run()
logger_object.debug('Finished the import process')
finally:
# Release the lock for the next invocation.
lock.release()
if __name__ == '__main__':
main(sys.argv)
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