~bzr-pqm/bzr/bzr.dev

# 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

"""

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

# variable $BZR_LP_XMLRPC_URL

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

# Since we are a built-in plugin we share the bzrlib version

from bzrlib import version_info

from bzrlib.lazy_import import lazy_import

lazy_import(globals(), """

from bzrlib import (

    branch as _mod_branch,

    ui,

    trace,

    )

""")

from bzrlib import bzrdir

from bzrlib.commands import (

    Command,

    register_command,

    )

from bzrlib.directory_service import directories

from bzrlib.errors import (

    BzrCommandError,

    InvalidRevisionSpec,

    InvalidURL,

    NoPublicBranch,

    NotBranchError,

    )

from bzrlib.help_topics import topic_registry

from bzrlib.option import (

        Option,

        ListOption,

)

class cmd_register_branch(Command):

    __doc__ = """Register a branch with launchpad.net.

    This command lists a bzr branch in the directory of branches on

    launchpad.net.  Registration allows the branch to be associated with

    bugs or specifications.

    Before using this command you must register the project to which the

    branch belongs, and create an account for yourself on launchpad.net.

    arguments:

        public_url: The publicly visible url for the branch to register.

                    This must be an http or https url (which Launchpad can read

                    from to access the branch). Local file urls, SFTP urls, and

                    bzr+ssh urls will not work.

                    If no public_url is provided, bzr will use the configured

                    public_url if there is one for the current branch, and

                    otherwise error.

    example:

        bzr register-branch http://foo.com/bzr/fooproject.mine \\

                --project fooproject

    """

    takes_args = ['public_url?']

    takes_options = [

         Option('project',

                'Launchpad project short name to associate with the branch.',

                unicode),

         Option('product',

                'Launchpad product short name to associate with the branch.', 

                unicode,

                hidden=True),

         Option('branch-name',

                'Short name for the branch; '

                'by default taken from the last component of the url.',

                unicode),

         Option('branch-title',

                'One-sentence description of the branch.',

                unicode),

         Option('branch-description',

                'Longer description of the purpose or contents of the branch.',

                unicode),

         Option('author',

                "Branch author's email address, if not yourself.",

                unicode),

         Option('link-bug',

                'The bug this branch fixes.',

                int),

         Option('dry-run',

                'Prepare the request but don\'t actually send it.')

        ]

    def run(self,

            public_url=None,

            project='',

            product=None,

            branch_name='',

            branch_title='',

            branch_description='',

            author='',

            link_bug=None,

            dry_run=False):

        from bzrlib.plugins.launchpad.lp_registration import (

            BranchRegistrationRequest, BranchBugLinkRequest,

            DryRunLaunchpadService, LaunchpadService)

        if public_url is None:

            try:

                b = _mod_branch.Branch.open_containing('.')[0]

            except NotBranchError:

                raise BzrCommandError('register-branch requires a public '

                    'branch url - see bzr help register-branch.')

            public_url = b.get_public_branch()

            if public_url is None:

                raise NoPublicBranch(b)

        if product is not None:

            project = product

            trace.note('--product is deprecated; please use --project.')

        rego = BranchRegistrationRequest(branch_url=public_url,

                                         branch_name=branch_name,

                                         branch_title=branch_title,

                                         branch_description=branch_description,

                                         product_name=project,

                                         author_email=author,

                                         )

        linko = BranchBugLinkRequest(branch_url=public_url,

                                     bug_id=link_bug)

        if not dry_run:

            service = LaunchpadService()

            # This gives back the xmlrpc url that can be used for future

            # operations on the branch.  It's not so useful to print to the

            # user since they can't do anything with it from a web browser; it

            # might be nice for the server to tell us about an html url as

            # well.

        else:

            # Run on service entirely in memory

            service = DryRunLaunchpadService()

        service.gather_user_credentials()

        rego.submit(service)

        if link_bug:

            linko.submit(service)

        print 'Branch registered.'

register_command(cmd_register_branch)

class cmd_launchpad_open(Command):

    __doc__ = """Open a Launchpad branch page in your web browser."""

    aliases = ['lp-open']

    takes_options = [

        Option('dry-run',

               'Do not actually open the browser. Just say the URL we would '

               'use.'),

        ]

    takes_args = ['location?']

    def _possible_locations(self, location):

        """Yield possible external locations for the branch at 'location'."""

        yield location

        try:

            branch = _mod_branch.Branch.open_containing(location)[0]

        except NotBranchError:

            return

        branch_url = branch.get_public_branch()

        if branch_url is not None:

            yield branch_url

        branch_url = branch.get_push_location()

        if branch_url is not None:

            yield branch_url

    def _get_web_url(self, service, location):

        from bzrlib.plugins.launchpad.lp_registration import (

            NotLaunchpadBranch)

        for branch_url in self._possible_locations(location):

            try:

                return service.get_web_url_from_branch_url(branch_url)

            except (NotLaunchpadBranch, InvalidURL):

                pass

        raise NotLaunchpadBranch(branch_url)

    def run(self, location=None, dry_run=False):

        from bzrlib.plugins.launchpad.lp_registration import (

            LaunchpadService)

        if location is None:

            location = u'.'

        web_url = self._get_web_url(LaunchpadService(), location)

        trace.note('Opening %s in web browser' % web_url)

        if not dry_run:

            import webbrowser   # this import should not be lazy

                                # otherwise bzr.exe lacks this module

            webbrowser.open(web_url)

register_command(cmd_launchpad_open)

class cmd_launchpad_login(Command):

    __doc__ = """Show or set the Launchpad user ID.

    When communicating with Launchpad, some commands need to know your

    Launchpad user ID.  This command can be used to set or show the

    user ID that Bazaar will use for such communication.

    :Examples:

      Show the Launchpad ID of the current user::

          bzr launchpad-login

      Set the Launchpad ID of the current user to 'bob'::

          bzr launchpad-login bob

    """

    aliases = ['lp-login']

    takes_args = ['name?']

    takes_options = [

        'verbose',

        Option('no-check',

               "Don't check that the user name is valid."),

        ]

    def run(self, name=None, no_check=False, verbose=False):

        # This is totally separate from any launchpadlib login system.

        from bzrlib.plugins.launchpad import account

        check_account = not no_check

        if name is None:

            username = account.get_lp_login()

            if username:

                if check_account:

                    account.check_lp_login(username)

                    if verbose:

                        self.outf.write(

                            "Launchpad user ID exists and has SSH keys.\n")

                self.outf.write(username + '\n')

            else:

                self.outf.write('No Launchpad user ID configured.\n')

                return 1

        else:

            name = name.lower()

            if check_account:

                account.check_lp_login(name)

                if verbose:

                    self.outf.write(

                        "Launchpad user ID exists and has SSH keys.\n")

            account.set_lp_login(name)

            if verbose:

                self.outf.write("Launchpad user ID set to '%s'.\n" % (name,))

register_command(cmd_launchpad_login)

# XXX: cmd_launchpad_mirror is untested

class cmd_launchpad_mirror(Command):

    __doc__ = """Ask Launchpad to mirror a branch now."""

    aliases = ['lp-mirror']

    takes_args = ['location?']

    def run(self, location='.'):

        from bzrlib.plugins.launchpad import lp_api

        from bzrlib.plugins.launchpad.lp_registration import LaunchpadService

        branch, _ = _mod_branch.Branch.open_containing(location)

        service = LaunchpadService()

        launchpad = lp_api.login(service)

        lp_branch = lp_api.LaunchpadBranch.from_bzr(launchpad, branch,

                create_missing=False)

        lp_branch.lp.requestMirror()

register_command(cmd_launchpad_mirror)

class cmd_lp_propose_merge(Command):

    __doc__ = """Propose merging a branch on Launchpad.

    This will open your usual editor to provide the initial comment.  When it

    has created the proposal, it will open it in your default web browser.

    The branch will be proposed to merge into SUBMIT_BRANCH.  If SUBMIT_BRANCH

    is not supplied, the remembered submit branch will be used.  If no submit

    branch is remembered, the development focus will be used.

    By default, the SUBMIT_BRANCH's review team will be requested to review

    the merge proposal.  This can be overriden by specifying --review (-R).

    The parameter the launchpad account name of the desired reviewer.  This

    may optionally be followed by '=' and the review type.  For example:

      bzr lp-propose-merge --review jrandom --review review-team=qa

    This will propose a merge,  request "jrandom" to perform a review of

    unspecified type, and request "review-team" to perform a "qa" review.

    """

    takes_options = [Option('staging',

                            help='Propose the merge on staging.'),

                     Option('message', short_name='m', type=unicode,

                            help='Commit message.'),

                     Option('approve',

                            help='Mark the proposal as approved immediately.'),

                     ListOption('review', short_name='R', type=unicode,

                            help='Requested reviewer and optional type.')]

    takes_args = ['submit_branch?']

    aliases = ['lp-submit', 'lp-propose']

    def run(self, submit_branch=None, review=None, staging=False,

            message=None, approve=False):

        from bzrlib.plugins.launchpad import lp_propose

        tree, branch, relpath = bzrdir.BzrDir.open_containing_tree_or_branch(

            '.')

        if review is None:

            reviews = None

        else:

            reviews = []

            for review in review:

                if '=' in review:

                    reviews.append(review.split('=', 2))

                else:

                    reviews.append((review, ''))

            if submit_branch is None:

                submit_branch = branch.get_submit_branch()

        if submit_branch is None:

            target = None

        else:

            target = _mod_branch.Branch.open(submit_branch)

        proposer = lp_propose.Proposer(tree, branch, target, message,

                                       reviews, staging, approve=approve)

        proposer.check_proposal()

        proposer.create_proposal()

register_command(cmd_lp_propose_merge)

class cmd_lp_find_proposal(Command):

    __doc__ = """Find the proposal to merge this revision.

    Finds the merge proposal(s) that discussed landing the specified revision.

    This works only if the selected branch was the merge proposal target, and

    if the merged_revno is recorded for the merge proposal.  The proposal(s)

    are opened in a web browser.

    Any revision involved in the merge may be specified-- the revision in

    which the merge was performed, or one of the revisions that was merged.

    So, to find the merge proposal that reviewed line 1 of README::

      bzr lp-find-proposal -r annotate:README:1

    """

    takes_options = ['revision']

    def run(self, revision=None):

        from bzrlib.plugins.launchpad import lp_api

        import webbrowser

        b = _mod_branch.Branch.open_containing('.')[0]

        pb = ui.ui_factory.nested_progress_bar()

        b.lock_read()

        try:

            revno = self._find_merged_revno(revision, b, pb)

            merged = self._find_proposals(revno, b, pb)

            if len(merged) == 0:

                raise BzrCommandError('No review found.')

            trace.note('%d proposals(s) found.' % len(merged))

            for mp in merged:

                webbrowser.open(lp_api.canonical_url(mp))

        finally:

            b.unlock()

            pb.finished()

    def _find_merged_revno(self, revision, b, pb):

        if revision is None:

            return b.revno()

        pb.update('Finding revision-id')

        revision_id = revision[0].as_revision_id(b)

        # a revno spec is necessarily on the mainline.

        if self._is_revno_spec(revision[0]):

            merging_revision = revision_id

        else:

            graph = b.repository.get_graph()

            pb.update('Finding merge')

            merging_revision = graph.find_lefthand_merger(

                revision_id, b.last_revision())

            if merging_revision is None:

                raise InvalidRevisionSpec(revision[0].user_spec, b)

        pb.update('Finding revno')

        return b.revision_id_to_revno(merging_revision)

    def _find_proposals(self, revno, b, pb):

        launchpad = lp_api.login(lp_registration.LaunchpadService())

        pb.update('Finding Launchpad branch')

        lpb = lp_api.LaunchpadBranch.from_bzr(launchpad, b,

                                              create_missing=False)

        pb.update('Finding proposals')

        return list(lpb.lp.getMergeProposals(status=['Merged'],

                                             merged_revnos=[revno]))

    @staticmethod

    def _is_revno_spec(spec):

        try:

            int(spec.user_spec)

        except ValueError:

            return False

        else:

            return True

register_command(cmd_lp_find_proposal)

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()

def load_tests(basic_tests, module, loader):

    testmod_names = [

        'test_account',

        'test_register',

        'test_lp_api',

        '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')