~launchpad-pqm/launchpad/devel

#!/usr/bin/python -S

#

# Copyright 2009 Canonical Ltd.  This software is licensed under the

# GNU Affero General Public License version 3 (see the file LICENSE).

"""When passed a CodeImportJob id on the command line, process that job.

The actual work of processing a job is done by the code-import-worker.py

script which this process runs as a child process and updates the database on

its progress and result.

This script is usually run by the code-import-dispatcher cronscript.

"""

__metaclass__ = type

# pylint: disable-msg=W0403

import _pythonpath

import os

from twisted.internet import defer, reactor

from twisted.python import log

from twisted.web import xmlrpc

from lp.services.config import config

from lp.codehosting.codeimport.workermonitor import (

    CodeImportWorkerMonitor)

from lp.services.scripts.base import LaunchpadScript

from lp.services.twistedsupport.loggingsupport import set_up_oops_reporting

class CodeImportWorker(LaunchpadScript):

    def __init__(self, name, dbuser=None, test_args=None):

        LaunchpadScript.__init__(self, name, dbuser, test_args)

        # The logfile changes its name according to the code in

        # CodeImportDispatcher, so we pull it from the command line

        # options.

        set_up_oops_reporting(

            self.name, 'codeimportworker', logfile=self.options.log_file)

    def add_my_options(self):

        """See `LaunchpadScript`."""

        self.parser.add_option(

            "--access-policy", type="choice", metavar="ACCESS_POLICY",

            choices=["anything", "default"], default=None)

    def _init_db(self, isolation):

        # This script doesn't access the database.

        pass

    def main(self):

        arg, = self.args

        job_id = int(arg)

        # XXX: MichaelHudson 2008-05-07 bug=227586: Setting up the component

        # architecture overrides $GNUPGHOME to something stupid.

        os.environ['GNUPGHOME'] = ''

        reactor.callWhenRunning(self._do_import, job_id)

        reactor.run()

    def _do_import(self, job_id):

        defer.maybeDeferred(self._main, job_id).addErrback(

            log.err).addCallback(

            lambda ignored: reactor.stop())

    def _main(self, job_id):

        worker = CodeImportWorkerMonitor(

            job_id, self.logger,

            xmlrpc.Proxy(config.codeimportdispatcher.codeimportscheduler_url),

            self.options.access_policy)

        return worker.run()

if __name__ == '__main__':

    script = CodeImportWorker('codeimportworker')

    script.run()