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bzrlib/sign_my_commits.py
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# Copyright (C) 2006, 2007, 2009, 2010 Canonical Ltd
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#
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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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#
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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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#
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Command which looks for unsigned commits by the current user, and signs them.
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"""
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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 (
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    config,
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    gpg,
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    )
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from bzrlib.bzrdir import BzrDir
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""")
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from bzrlib.commands import Command
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from bzrlib.option import Option
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class cmd_sign_my_commits(Command):
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    __doc__ = """Sign all commits by a given committer.
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    If location is not specified the local tree is used.
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    If committer is not specified the default committer is used.
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    This does not sign commits that already have signatures.
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    """
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    # Note that this signs everything on the branch's ancestry
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    # (both mainline and merged), but not other revisions that may be in the
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    # repository
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    takes_options = [
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            Option('dry-run',
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                   help='Don\'t actually sign anything, just print'
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                        ' the revisions that would be signed.'),
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            ]
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    takes_args = ['location?', 'committer?']
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    def run(self, location=None, committer=None, dry_run=False):
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        if location is None:
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            bzrdir = BzrDir.open_containing('.')[0]
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        else:
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            # Passed in locations should be exact
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            bzrdir = BzrDir.open(location)
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        branch = bzrdir.open_branch()
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        repo = branch.repository
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        branch_config = branch.get_config()
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        if committer is None:
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            committer = branch_config.username()
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        gpg_strategy = gpg.GPGStrategy(branch_config)
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        count = 0
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        repo.lock_write()
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        try:
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            repo.start_write_group()
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            try:
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                for rev_id in repo.get_ancestry(branch.last_revision())[1:]:
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                    if repo.has_signature_for_revision_id(rev_id):
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                        continue
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                    rev = repo.get_revision(rev_id)
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                    if rev.committer != committer:
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                        continue
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                    # We have a revision without a signature who has a
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                    # matching committer, start signing
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                    print rev_id
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                    count += 1
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                    if not dry_run:
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                        repo.sign_revision(rev_id, gpg_strategy)
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            except:
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                repo.abort_write_group()
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                raise
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            else:
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                repo.commit_write_group()
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        finally:
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            repo.unlock()
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        print 'Signed %d revisions' % (count,)
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