/brz/remove-bazaar

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Support bare repositories.

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repository.py
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"""An adapter between a Git Repository and a Bazaar Branch"""
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import bzrlib
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from bzrlib import (
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    errors,
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    graph,
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    inventory,
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    osutils,
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    repository,
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    revision,
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    revisiontree,
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    )
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from bzrlib.plugins.git.tree import (
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    GitRevisionTree,
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    InterGitRevisionTrees,
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    )
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from bzrlib.plugins.git.versionedfiles import (
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    GitRevisions,
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    )
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51
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48
from dulwich.objects import (
 
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    Commit,
 
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    )
 
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52
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class GitRepository(ForeignRepository):
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    """An adapter to git repositories for bzr."""
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            repository.InterRepository.register_optimiser(optimiser)
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    def is_shared(self):
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        return True
 
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        return False
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    def supports_rich_root(self):
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        return True
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76
 
    def _warn_if_deprecated(self):
 
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    def _warn_if_deprecated(self, branch=None):
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        # This class isn't deprecated
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        pass
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        interrepo = repository.InterRepository.get(source, self)
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        return interrepo.dfetch(stop_revision)
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93
 
    def dfetch_refs(self, source, stop_revision):
94
 
        interrepo = repository.InterRepository.get(source, self)
95
 
        return interrepo.dfetch_refs(stop_revision)
96
 
 
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class LocalGitRepository(GitRepository):
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    """Git repository on the file system."""
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101
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    def __init__(self, gitdir, lockfiles):
102
 
        # FIXME: This also caches negatives. Need to be more careful
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        # about this once we start writing to git
104
 
        self._parents_provider = graph.CachingParentsProvider(self)
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        GitRepository.__init__(self, gitdir, lockfiles)
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        self.base = gitdir.root_transport.base
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        self._git = gitdir._git
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        self.inventories = None
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105
        self.texts = GitTexts(self)
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106
 
 
107
    def _iter_revision_ids(self):
 
108
        mapping = self.get_mapping()
 
109
        for sha in self._git.object_store:
 
110
            o = self._git.object_store[sha]
 
111
            if not isinstance(o, Commit):
 
112
                continue
 
113
            rev, roundtrip_revid, verifiers = mapping.import_commit(o,
 
114
                self.lookup_foreign_revision_id)
 
115
            yield o.id, rev.revision_id, roundtrip_revid
 
116
 
113
117
    def all_revision_ids(self):
114
 
        ret = set([revision.NULL_REVISION])
115
 
        heads = self._git.refs.as_dict('refs/heads')
116
 
        if heads == {}:
117
 
            return ret
118
 
        bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in heads.itervalues()]
119
 
        ret = set(bzr_heads)
120
 
        graph = self.get_graph()
121
 
        for rev, parents in graph.iter_ancestry(bzr_heads):
122
 
            ret.add(rev)
 
118
        ret = set([])
 
119
        for git_sha, revid, roundtrip_revid in self._iter_revision_ids():
 
120
            ret.add(revid)
 
121
            if roundtrip_revid:
 
122
                ret.add(roundtrip_revid)
123
123
        return ret
124
124
 
125
 
    def _make_parents_provider(self):
126
 
        """See Repository._make_parents_provider()."""
127
 
        return self._parents_provider
128
 
 
129
125
    def get_parent_map(self, revids):
130
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        parent_map = {}
131
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        for revision_id in revids:
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                continue
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            hexsha, mapping = self.lookup_bzr_revision_id(revision_id)
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            try:
138
 
                commit = self._git.commit(hexsha)
 
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                commit = self._git[hexsha]
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            except KeyError:
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                continue
141
 
            if commit is None:
142
 
                # Older versions of Dulwich used to return None rather than
143
 
                # raise KeyError.
144
 
                continue
145
 
            else:
146
 
                parent_map[revision_id] = [mapping.revision_id_foreign_to_bzr(p) for p in commit.parents]
 
137
            parent_map[revision_id] = [
 
138
                self.lookup_foreign_revision_id(p, mapping)
 
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                for p in commit.parents]
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        return parent_map
148
141
 
149
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    def get_ancestry(self, revision_id, topo_sorted=True):
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    def get_signature_text(self, revision_id):
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        raise errors.NoSuchRevision(self, revision_id)
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157
 
 
158
    def pack(self, hint=None, clean_obsolete_packs=False):
 
159
        self._git.object_store.pack_loose_objects()
 
160
 
165
161
    def lookup_foreign_revision_id(self, foreign_revid, mapping=None):
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        """Lookup a revision id.
167
163
 
168
 
        :param revid: Bazaar revision id.
169
 
        :return: Tuple with git revisionid and mapping.
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        """
171
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        if mapping is None:
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            mapping = self.get_mapping()
173
 
        return mapping.revision_id_foreign_to_bzr(foreign_revid)
 
167
        from dulwich.protocol import (
 
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            ZERO_SHA,
 
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            )
 
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        if foreign_revid == ZERO_SHA:
 
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            return revision.NULL_REVISION
 
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        commit = self._git[foreign_revid]
 
173
        rev, roundtrip_revid, verifiers = mapping.import_commit(commit,
 
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            lambda x: None)
 
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        # FIXME: check testament before doing this?
 
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        if roundtrip_revid:
 
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            return roundtrip_revid
 
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        else:
 
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            return rev.revision_id
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175
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    def has_signature_for_revision_id(self, revision_id):
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        return False
177
183
 
178
 
    def lookup_bzr_revision_id(self, bzr_revid):
 
184
    def lookup_bzr_revision_id(self, bzr_revid, mapping=None):
179
185
        try:
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            return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
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        except errors.InvalidRevisionId:
182
 
            raise errors.NoSuchRevision(self, bzr_revid)
 
188
            if mapping is None:
 
189
                mapping = self.get_mapping()
 
190
            try:
 
191
                return (self._git.refs[mapping.revid_as_refname(bzr_revid)],
 
192
                        mapping)
 
193
            except KeyError:
 
194
                # Update refs from Git commit objects
 
195
                # FIXME: Hitting this a lot will be very inefficient...
 
196
                for git_sha, revid, roundtrip_revid in self._iter_revision_ids():
 
197
                    if not roundtrip_revid:
 
198
                        continue
 
199
                    refname = mapping.revid_as_refname(roundtrip_revid)
 
200
                    self._git.refs[refname] = git_sha
 
201
                    if roundtrip_revid == bzr_revid:
 
202
                        return git_sha, mapping
 
203
                raise errors.NoSuchRevision(self, bzr_revid)
183
204
 
184
205
    def get_revision(self, revision_id):
185
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        git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
186
207
        try:
187
 
            commit = self._git.commit(git_commit_id)
 
208
            commit = self._git[git_commit_id]
188
209
        except KeyError:
189
210
            raise errors.NoSuchRevision(self, revision_id)
190
 
        # print "fetched revision:", git_commit_id
191
 
        revision = mapping.import_commit(commit)
 
211
        revision, roundtrip_revid, verifiers = mapping.import_commit(
 
212
            commit, self.lookup_foreign_revision_id)
192
213
        assert revision is not None
 
214
        # FIXME: check verifiers ?
 
215
        if roundtrip_revid:
 
216
            revision.revision_id = roundtrip_revid
193
217
        return revision
194
218
 
195
219
    def has_revision(self, revision_id):
196
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        try:
197
 
            self.get_revision(revision_id)
 
221
            git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
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222
        except errors.NoSuchRevision:
199
223
            return False
200
 
        else:
201
 
            return True
 
224
        return (git_commit_id in self._git)
 
225
 
 
226
    def has_revisions(self, revision_ids):
 
227
        return set(filter(self.has_revision, revision_ids))
202
228
 
203
229
    def get_revisions(self, revids):
204
230
        return [self.get_revision(r) for r in revids]
226
252
        progress=None):
227
253
        return self._git.fetch_objects(determine_wants, graph_walker, progress)
228
254
 
 
255
    def _get_versioned_file_checker(self, text_key_references=None,
 
256
                        ancestors=None):
 
257
        return GitVersionedFileChecker(self,
 
258
            text_key_references=text_key_references, ancestors=ancestors)
 
259
 
 
260
 
 
261
class GitVersionedFileChecker(repository._VersionedFileChecker):
 
262
 
 
263
    file_ids = []
 
264
 
 
265
    def _check_file_version_parents(self, texts, progress_bar):
 
266
        return {}, []
 
267
 
229
268
 
230
269
class GitRepositoryFormat(repository.RepositoryFormat):
231
270
    """Git repository format."""
243
282
        return target_repo_format.rich_root_data
244
283
 
245
284
    def get_foreign_tests_repository_factory(self):
246
 
        from bzrlib.plugins.git.tests.test_repository import ForeignTestsRepositoryFactory
 
285
        from bzrlib.plugins.git.tests.test_repository import (
 
286
            ForeignTestsRepositoryFactory,
 
287
            )
247
288
        return ForeignTestsRepositoryFactory()
248
289
 
249
290
    def network_name(self):