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path: root/bzrlib/plugins/launchpad/__init__.py
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# Copyright (C) 2006-2011 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Launchpad.net integration plugin for Bazaar.

This plugin provides facilities for working with Bazaar branches that are
hosted on Launchpad (http://launchpad.net).  It provides a directory service 
for referring to Launchpad branches using the "lp:" prefix.  For example,
lp:bzr refers to the Bazaar's main development branch and
lp:~username/project/branch-name can be used to refer to a specific branch.

This plugin provides a bug tracker so that "bzr commit --fixes lp:1234" will
record that revision as fixing Launchpad's bug 1234.

The plugin also provides the following commands:

    launchpad-login: Show or set the Launchpad user ID
    launchpad-open: Open a Launchpad branch page in your web browser
    lp-propose-merge: Propose merging a branch on Launchpad
    register-branch: Register a branch with launchpad.net
    launchpad-mirror: Ask Launchpad to mirror a branch now

"""

from __future__ import absolute_import

# The XMLRPC server address can be overridden by setting the environment
# variable $BZR_LP_XMLRPC_URL

# see http://wiki.bazaar.canonical.com/Specs/BranchRegistrationTool

from bzrlib import (
    branch as _mod_branch,
    config as _mod_config,
    lazy_regex,
    # Since we are a built-in plugin we share the bzrlib version
    trace,
    version_info,
    )
from bzrlib.commands import (
    plugin_cmds,
    )
from bzrlib.directory_service import directories
from bzrlib.help_topics import topic_registry

for klsname, aliases in [
    ("cmd_register_branch", []),
    ("cmd_launchpad_open", ["lp-open"]),
    ("cmd_launchpad_login", ["lp-login"]),
    ("cmd_launchpad_mirror", ["lp-mirror"]),
    ("cmd_lp_propose_merge", ["lp-submit", "lp-propose"]),
    ("cmd_lp_find_proposal", [])]:
    plugin_cmds.register_lazy(klsname, aliases,
        "bzrlib.plugins.launchpad.cmds")


def _register_directory():
    directories.register_lazy('lp:', 'bzrlib.plugins.launchpad.lp_directory',
                              'LaunchpadDirectory',
                              'Launchpad-based directory service',)
    directories.register_lazy(
        'debianlp:', 'bzrlib.plugins.launchpad.lp_directory',
        'LaunchpadDirectory',
        'debianlp: shortcut')
    directories.register_lazy(
        'ubuntu:', 'bzrlib.plugins.launchpad.lp_directory',
        'LaunchpadDirectory',
        'ubuntu: shortcut')

_register_directory()

# This is kept in __init__ so that we don't load lp_api_lite unless the branch
# actually matches. That way we can avoid importing extra dependencies like
# json.
_package_branch = lazy_regex.lazy_compile(
    r'bazaar.launchpad.net.*?/'
    r'(?P<user>~[^/]+/)?(?P<archive>ubuntu|debian)/(?P<series>[^/]+/)?'
    r'(?P<project>[^/]+)(?P<branch>/[^/]+)?'
    )

def _get_package_branch_info(url):
    """Determine the packaging information for this URL.

    :return: If this isn't a packaging branch, return None. If it is, return
        (archive, series, project)
    """
    if url is None:
        return None
    m = _package_branch.search(url)
    if m is None:
        return None
    archive, series, project, user = m.group('archive', 'series',
                                             'project', 'user')
    if series is not None:
        # series is optional, so the regex includes the extra '/', we don't
        # want to send that on (it causes Internal Server Errors.)
        series = series.strip('/')
    if user is not None:
        user = user.strip('~/')
        if user != 'ubuntu-branches':
            return None
    return archive, series, project


def _check_is_up_to_date(the_branch):
    info = _get_package_branch_info(the_branch.base)
    if info is None:
        return
    c = the_branch.get_config_stack()
    verbosity = c.get('launchpad.packaging_verbosity')
    if not verbosity:
        trace.mutter('not checking %s because verbosity is turned off'
                     % (the_branch.base,))
        return
    archive, series, project = info
    from bzrlib.plugins.launchpad import lp_api_lite
    latest_pub = lp_api_lite.LatestPublication(archive, series, project)
    lp_api_lite.report_freshness(the_branch, verbosity, latest_pub)


def _register_hooks():
    _mod_branch.Branch.hooks.install_named_hook('open',
        _check_is_up_to_date, 'package-branch-up-to-date')


_register_hooks()

def load_tests(basic_tests, module, loader):
    testmod_names = [
        'test_account',
        'test_register',
        'test_lp_api',
        'test_lp_api_lite',
        'test_lp_directory',
        'test_lp_login',
        'test_lp_open',
        'test_lp_service',
        ]
    basic_tests.addTest(loader.loadTestsFromModuleNames(
            ["%s.%s" % (__name__, tmn) for tmn in testmod_names]))
    return basic_tests


_launchpad_help = """Integration with Launchpad.net

Launchpad.net provides free Bazaar branch hosting with integrated bug and
specification tracking.

The bzr client (through the plugin called 'launchpad') has special
features to communicate with Launchpad:

    * The launchpad-login command tells Bazaar your Launchpad user name. This
      is then used by the 'lp:' transport to download your branches using
      bzr+ssh://.

    * The 'lp:' transport uses Launchpad as a directory service: for example
      'lp:bzr' and 'lp:python' refer to the main branches of the relevant
      projects and may be branched, logged, etc. You can also use the 'lp:'
      transport to refer to specific branches, e.g. lp:~bzr/bzr/trunk.

    * The 'lp:' bug tracker alias can expand launchpad bug numbers to their
      URLs for use with 'bzr commit --fixes', e.g. 'bzr commit --fixes lp:12345'
      will record a revision property that marks that revision as fixing
      Launchpad bug 12345. When you push that branch to Launchpad it will
      automatically be linked to the bug report.

    * The register-branch command tells Launchpad about the url of a
      public branch.  Launchpad will then mirror the branch, display
      its contents and allow it to be attached to bugs and other
      objects.

For more information see http://help.launchpad.net/
"""
topic_registry.register('launchpad',
    _launchpad_help,
    'Using Bazaar with Launchpad.net')

_mod_config.option_registry.register(
    _mod_config.Option('launchpad.packaging_verbosity', default=True,
          from_unicode=_mod_config.bool_from_store,
          help="""\
Whether to warn if a UDD package import branch is accessed that is out of date.

Setting this option to 'off' will disable verbosity.
"""))
_mod_config.option_registry.register(
    _mod_config.Option('launchpad_username', default=None,
        help="The username to login with when conneting to Launchpad."))