bzr branch
http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar
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0.200.226
by Jelmer Vernooij
Merge thin-pack work. |
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# Copyright (C) 2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Map from Git sha's to Bazaar objects."""
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from bzrlib.errors import NoSuchRevision |
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class GitObjectConverter(object): |
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def __init__(self, repository, mapping=None): |
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self.repository = repository |
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if mapping is None: |
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self.mapping = self.repository.get_mapping() |
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else: |
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self.mapping = mapping |
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def __getitem__(self, sha): |
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# Commit
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revid = self.mapping.revision_id_foreign_to_bzr(sha) |
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try: |
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rev = self.repository.get_revision(revid) |
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except NoSuchRevision: |
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pass
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else: |
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return reconstruct_git_commit(rev) |
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# TODO: Yeah, this won't scale, but the only alternative is a
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# custom map..
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for (fileid, revision) in self.repository.texts.keys(): |
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blob = self._get_blob( |
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print revision |
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class GitShaMap(object): |
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def __init__(self, transport): |
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self.transport = transport |
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def add_entry(self, sha, type, type_data): |
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"""Add a new entry to the database. |
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"""
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raise NotImplementedError(self.add_entry) |
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def lookup_git_sha(self, sha): |
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"""Lookup a Git sha in the database. |
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:param sha: Git object sha
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:return: (type, type_data) with type_data:
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revision: revid, tree sha
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"""
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raise NotImplementedError(self.lookup_git_sha) |
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class MappedGitObjectConverter(GitObjectConverter): |
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def __init__(self, repository): |
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self.repository = repository |
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self._idmap = GitShaMap(self.repository._transport) |
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def _update_sha_map(self): |
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# TODO: Check which
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raise NotImplementedError(self._update_sha_map) |
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def __getitem__(self, sha): |
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# See if sha is in map
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try: |
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(type, type_data) = self._idmap.lookup_git_sha(sha) |
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except KeyError: |
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# if not, see if there are any unconverted revisions and add them
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# to the map, search for sha in map again
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self._update_sha_map() |
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(type, type_data) = self._idmap.lookup_git_sha(sha) |
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# convert object to git object
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if type == "revision": |
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return self._get_commit(*type_data) |
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else: |
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raise AssertionError("Unknown object type '%s'" % type) |