~launchpad-pqm/launchpad/devel

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#!/usr/bin/env python
# Copyright 2005 Canonical Ltd.  All rights reserved.

import _pythonpath

import sys
from optparse import OptionParser

from canonical.config import config
from canonical.lp import initZopeless
from canonical.launchpad.scripts.lockfile import LockFile
from canonical.launchpad.scripts.rosetta import URLOpener, attach
from canonical.launchpad.scripts import (execute_zcml_for_scripts, logger,
    logger_options)

default_lock_file = '/var/lock/rosetta-package-po-attach.lock'

def parse_options(args):
    """Parse a set of command line options.

    Returns 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.")
    parser.add_option("-a", "--archive", dest="archive_uri",
        default="http://people.ubuntu.com/~lamont/translations/",
        help="The location of the archive from which to get translations")

    # Add the verbose/quiet options.
    logger_options(parser)

    (options, args) = parser.parse_args(args)

    return options


def main(argv):
    options = parse_options(argv[1:])

    logger_object = logger(options, 'rosetta-package-po-attach')

    # 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 0

    try:
        # Setup zcml machinery to be able to use getUtility
        execute_zcml_for_scripts()
        ztm = initZopeless(dbuser=config.rosetta.poattach.dbuser)
        urlopener = URLOpener()

        attach(urlopener, options.archive_uri, ztm, logger_object)
        return 0
    finally:
        # Release the lock for the next invocation.
        lockfile.release()


if __name__ == '__main__':
    sys.exit(main(sys.argv))