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Viewing changes to bzrlib/plugins/launchpad/__init__.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-11-23 16:54:50 UTC
  • mfrom: (5546.2.4 find-review)
  • Revision ID: pqm@pqm.ubuntu.com-20101123165450-bmll7p8fjng1d8xy
Add lp-find-proposal command.

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bzrlib/plugins/launchpad/__init__.py
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lazy_import(globals(), """
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from bzrlib import (
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    branch as _mod_branch,
 
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    errors,
 
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    ui,
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    trace,
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    )
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""")
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register_command(cmd_lp_propose_merge)
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class cmd_lp_find_proposal(Command):
 
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    __doc__ = """Find the proposal to merge this revision.
 
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    Finds the merge proposal(s) that discussed landing the specified revision.
 
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    This works only if the selected branch was the merge proposal target, and
 
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    if the merged_revno is recorded for the merge proposal.  The proposal(s)
 
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    are opened in a web browser.
 
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    Any revision involved in the merge may be specified-- the revision in
 
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    which the merge was performed, or one of the revisions that was merged.
 
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    So, to find the merge proposal that reviewed line 1 of README::
 
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      bzr lp-find-proposal -r annotate:README:1
 
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    """
 
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    takes_options = ['revision']
 
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    def run(self, revision=None):
 
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        from bzrlib.plugins.launchpad import lp_api
 
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        import webbrowser
 
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        b = _mod_branch.Branch.open_containing('.')[0]
 
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        pb = ui.ui_factory.nested_progress_bar()
 
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        b.lock_read()
 
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        try:
 
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            revno = self._find_merged_revno(revision, b, pb)
 
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            merged = self._find_proposals(revno, b, pb)
 
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            if len(merged) == 0:
 
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                raise BzrCommandError('No review found.')
 
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            trace.note('%d proposals(s) found.' % len(merged))
 
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            for mp in merged:
 
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                webbrowser.open(lp_api.canonical_url(mp))
 
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        finally:
 
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            b.unlock()
 
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            pb.finished()
 
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    def _find_merged_revno(self, revision, b, pb):
 
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        if revision is None:
 
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            return b.revno()
 
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        pb.update('Finding revision-id')
 
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        revision_id = revision[0].as_revision_id(b)
 
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        # a revno spec is necessarily on the mainline.
 
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        if self._is_revno_spec(revision[0]):
 
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            merging_revision = revision_id
 
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        else:
 
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            graph = b.repository.get_graph()
 
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            pb.update('Finding merge')
 
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            merging_revision = graph.find_lefthand_merger(
 
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                revision_id, b.last_revision())
 
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            if merging_revision is None:
 
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                raise errors.InvalidRevisionSpec(revision[0].user_spec, b)
 
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        pb.update('Finding revno')
 
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        return b.revision_id_to_revno(merging_revision)
 
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    def _find_proposals(self, revno, b, pb):
 
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        launchpad = lp_api.login(lp_registration.LaunchpadService())
 
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        pb.update('Finding Launchpad branch')
 
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        lpb = lp_api.LaunchpadBranch.from_bzr(launchpad, b,
 
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                                              create_missing=False)
 
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        pb.update('Finding proposals')
 
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        return list(lpb.lp.getMergeProposals(status=['Merged'],
 
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                                             merged_revnos=[revno]))
 
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    @staticmethod
 
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    def _is_revno_spec(spec):
 
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        try:
 
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            int(spec.user_spec)
 
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        except ValueError:
 
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            return False
 
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        else:
 
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            return True
 
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register_command(cmd_lp_find_proposal)
 
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def _register_directory():
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    directories.register_lazy('lp:', 'bzrlib.plugins.launchpad.lp_directory',
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                              'LaunchpadDirectory',