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# Copyright (C) 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from bzrlib import registry, help_topics
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bzrlib import errors, urlutils
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"""Provides a shorthand for referring to bugs on a variety of bug trackers.
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'commit --fixes' stores references to bugs as a <bug_url> -> <bug_status>
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mapping in the properties for that revision.
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However, it's inconvenient to type out full URLs for bugs on the command line,
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particularly given that many users will be using only a single bug tracker per
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Thus, this module provides a registry of types of bug tracker (e.g. Launchpad,
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Trac). Given an abbreviated name (e.g. 'lp', 'twisted') and a branch with
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configuration information, these tracker types can return an instance capable
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of converting bug IDs into URLs.
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"""When making a commit, metadata about bugs fixed by that change can be
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recorded by using the --fixes option. For each bug marked as fixed, an
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entry is included in the 'bugs' revision property stating '<url> <status>'.
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Support for Launchpad's central bug tracker is built in. For other bug
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trackers, configuration is required in advance so that the correct URL
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In addition to Launchpad, Bazaar directly supports the generation of
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URLs appropriate for Bugzilla and Trac. If your project uses a different
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bug tracker, it is easy to add support for it by writing a plugin, say.
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If you use Bugzilla or Trac, then you only need to set a configuration
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variable which contains the base URL of the bug tracker. These options
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can go into ``bazaar.conf``, ``branch.conf`` or into a branch-specific
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configuration section in ``locations.conf``. You can set up these values
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for each of the projects you work on.
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Note: As you provide a short name for each tracker, you can specify one or
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more bugs in one or more trackers at commit time if you wish.
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bugzilla_<tracker_abbreviation>_url
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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If present, the location of the Bugzilla bug tracker referred to by
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<tracker_abbreviation>. This option can then be used together with ``bzr commit
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--fixes`` to mark bugs in that tracker as being fixed by that commit. For
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bugzilla_squid_url = http://www.squid-cache.org/bugs
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would allow ``bzr commit --fixes squid:1234`` to mark Squid's bug 1234 as
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trac_<tracker_abbrevation>_url
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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If present, the location of the Trac instance referred to by
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<tracker_abbreviation>. This option can then be used together with ``bzr commit
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--fixes`` to mark bugs in that tracker as being fixed by that commit. For
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trac_twisted_url = http://www.twistedmatrix.com/trac
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would allow ``bzr commit --fixes twisted:1234`` to mark Twisted's bug 1234 as
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bugtracker_<tracker_abbrevation>_url
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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If present, the location of a generic bug tracker instance referred to by
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<tracker_abbreviation>. The location must contain an ``{id}`` placeholder,
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which will be replaced by a specific bug ID. This option can then be used
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together with ``bzr commit --fixes`` to mark bugs in that tracker as being
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fixed by that commit. For example::
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bugtracker_python_url = http://bugs.python.org/issue{id}
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would allow ``bzr commit --fixes python:1234`` to mark bug 1234 in Python's
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Roundup bug tracker as fixed, or::
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bugtracker_cpan_url = http://rt.cpan.org/Public/Bug/Display.html?id={id}
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for CPAN's RT bug tracker.
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def get_bug_url(abbreviated_bugtracker_name, branch, bug_id):
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"""Return a URL pointing to the canonical web page of the bug identified by
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tracker = tracker_registry.get_tracker(abbreviated_bugtracker_name, branch)
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return tracker.get_bug_url(bug_id)
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class TrackerRegistry(registry.Registry):
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"""Registry of bug tracker types."""
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def get_tracker(self, abbreviated_bugtracker_name, branch):
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"""Return the first registered tracker that understands
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'abbreviated_bugtracker_name'.
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If no such tracker is found, raise KeyError.
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for tracker_name in self.keys():
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tracker_type = self.get(tracker_name)
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tracker = tracker_type.get(abbreviated_bugtracker_name, branch)
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if tracker is not None:
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raise errors.UnknownBugTrackerAbbreviation(abbreviated_bugtracker_name,
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def help_topic(self, topic):
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tracker_registry = TrackerRegistry()
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"""Registry of bug trackers."""
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class BugTracker(object):
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"""Base class for bug trackers."""
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def check_bug_id(self, bug_id):
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"""Check that the bug_id is valid.
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The base implementation assumes that all bug_ids are valid.
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def get_bug_url(self, bug_id):
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"""Return the URL for bug_id. Raise an error if bug ID is malformed."""
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self.check_bug_id(bug_id)
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return self._get_bug_url(bug_id)
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def _get_bug_url(self, bug_id):
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"""Given a validated bug_id, return the bug's web page's URL."""
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class IntegerBugTracker(BugTracker):
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"""A bug tracker that only allows integer bug IDs."""
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def check_bug_id(self, bug_id):
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raise errors.MalformedBugIdentifier(bug_id, "Must be an integer")
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class UniqueIntegerBugTracker(IntegerBugTracker):
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"""A style of bug tracker that exists in one place only, such as Launchpad.
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If you have one of these trackers then register an instance passing in an
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abbreviated name for the bug tracker and a base URL.
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def __init__(self, abbreviated_bugtracker_name, base_url):
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self.abbreviation = abbreviated_bugtracker_name
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self.base_url = base_url
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def get(self, abbreviated_bugtracker_name, branch):
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"""Returns the tracker if the abbreviation matches. Returns None
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if abbreviated_bugtracker_name != self.abbreviation:
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def _get_bug_url(self, bug_id):
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"""Return the URL for bug_id."""
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return urlutils.join(self.base_url, bug_id)
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tracker_registry.register(
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'launchpad', UniqueIntegerBugTracker('lp', 'https://launchpad.net/bugs/'))
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tracker_registry.register(
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'debian', UniqueIntegerBugTracker('deb', 'http://bugs.debian.org/'))
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class URLParametrizedIntegerBugTracker(IntegerBugTracker):
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"""A type of bug tracker that can be found on a variety of different sites,
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and thus needs to have the base URL configured.
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Looks for a config setting in the form '<type_name>_<abbreviation>_url'.
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`type_name` is the name of the type of tracker (e.g. 'bugzilla' or 'trac')
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and `abbreviation` is a short name for the particular instance (e.g.
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'squid' or 'apache').
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def get(self, abbreviation, branch):
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config = branch.get_config()
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url = config.get_user_option(
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"%s_%s_url" % (self.type_name, abbreviation))
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def __init__(self, type_name, bug_area):
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self.type_name = type_name
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self._bug_area = bug_area
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def _get_bug_url(self, bug_id):
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"""Return a URL for a bug on this Trac instance."""
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return urlutils.join(self._base_url, self._bug_area) + str(bug_id)
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tracker_registry.register(
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'trac', URLParametrizedIntegerBugTracker('trac', 'ticket/'))
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tracker_registry.register(
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URLParametrizedIntegerBugTracker('bugzilla', 'show_bug.cgi?id='))
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class GenericBugTracker(URLParametrizedIntegerBugTracker):
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"""Generic bug tracker specified by an URL template."""
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super(GenericBugTracker, self).__init__('bugtracker', None)
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def get(self, abbreviation, branch):
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self._abbreviation = abbreviation
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return super(GenericBugTracker, self).get(abbreviation, branch)
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def _get_bug_url(self, bug_id):
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"""Given a validated bug_id, return the bug's web page's URL."""
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if '{id}' not in self._base_url:
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raise errors.InvalidBugTrackerURL(self._abbreviation,
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return self._base_url.replace('{id}', str(bug_id))
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tracker_registry.register('generic', GenericBugTracker())