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"""An adapter between a Git Repository and a Bazaar Branch"""
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from bzrlib import (
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from bzrlib.foreign import (
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from bzrlib.plugins.git.commit import (
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from bzrlib.plugins.git.mapping import (
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from bzrlib.plugins.git.tree import (
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from bzrlib.plugins.git.versionedfiles import (
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class GitRepository(ForeignRepository):
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from bzrlib.plugins.git import (
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class GitRepository(repository.Repository):
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"""An adapter to git repositories for bzr."""
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_commit_builder_class = GitCommitBuilder
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def __init__(self, gitdir, lockfiles):
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ForeignRepository.__init__(self, GitRepositoryFormat(), gitdir,
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from bzrlib.plugins.git import fetch, push
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for optimiser in [fetch.InterRemoteGitNonGitRepository,
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fetch.InterLocalGitNonGitRepository,
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fetch.InterGitGitRepository,
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push.InterToLocalGitRepository,
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push.InterToRemoteGitRepository]:
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repository.InterRepository.register_optimiser(optimiser)
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self.control_files = lockfiles
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gitdirectory = gitdir.transport.local_abspath('.')
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self._git = model.GitModel(gitdirectory)
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self._revision_cache = {}
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def _ancestor_revisions(self, revision_ids):
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if revision_ids is not None:
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git_revisions = [gitrevid_from_bzr(r) for r in revision_ids]
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for lines in self._git.ancestor_lines(git_revisions):
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yield self._parse_rev(lines)
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def is_shared(self):
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def supports_rich_root(self):
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def _warn_if_deprecated(self):
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# This class isn't deprecated
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def get_mapping(self):
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return default_mapping
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def make_working_trees(self):
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def revision_graph_can_have_wrong_parents(self):
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def dfetch(self, source, stop_revision):
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interrepo = repository.InterRepository.get(source, self)
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return interrepo.dfetch(stop_revision)
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def dfetch_refs(self, source, stop_revision):
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interrepo = repository.InterRepository.get(source, self)
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return interrepo.dfetch_refs(stop_revision)
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class LocalGitRepository(GitRepository):
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"""Git repository on the file system."""
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def __init__(self, gitdir, lockfiles):
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# FIXME: This also caches negatives. Need to be more careful
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# about this once we start writing to git
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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.signatures = None
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self.revisions = GitRevisions(self, self._git.object_store)
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self.inventories = None
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self.texts = GitTexts(self)
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def all_revision_ids(self):
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heads = self._git.refs.as_dict('refs/heads')
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bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in heads.itervalues()]
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graph = self.get_graph()
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for rev, parents in graph.iter_ancestry(bzr_heads):
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def _make_parents_provider(self):
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"""See Repository._make_parents_provider()."""
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return self._parents_provider
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def get_parent_map(self, revids):
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for revision_id in revids:
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assert isinstance(revision_id, str)
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if revision_id == revision.NULL_REVISION:
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parent_map[revision_id] = ()
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hexsha, mapping = self.lookup_bzr_revision_id(revision_id)
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commit = self._git.commit(hexsha)
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# Older versions of Dulwich used to return None rather than
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parent_map[revision_id] = [mapping.revision_id_foreign_to_bzr(p) for p in commit.parents]
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def get_ancestry(self, revision_id, topo_sorted=True):
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"""See Repository.get_ancestry().
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if revision_id is None:
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return [None, revision.NULL_REVISION] + self._all_revision_ids()
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assert isinstance(revision_id, str)
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graph = self.get_graph()
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for rev, parents in graph.iter_ancestry([revision_id]):
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return [None] + ancestry
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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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def lookup_foreign_revision_id(self, foreign_revid, mapping=None):
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"""Lookup a revision id.
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:param revid: Bazaar revision id.
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:return: Tuple with git revisionid and mapping.
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mapping = self.get_mapping()
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return mapping.revision_id_foreign_to_bzr(foreign_revid)
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def has_signature_for_revision_id(self, revision_id):
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def lookup_bzr_revision_id(self, bzr_revid):
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return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
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except errors.InvalidRevisionId:
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raise errors.NoSuchRevision(self, bzr_revid)
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def get_revision_graph(self, revision_id=None):
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if revision_id is not None:
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param = [ids.convert_revision_id_bzr_to_git(revision_id)]
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for node, parents in self._git.ancestry(param).iteritems():
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bzr_node = ids.convert_revision_id_git_to_bzr(node)
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bzr_parents = [ids.convert_revision_id_git_to_bzr(n)
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result[bzr_node] = bzr_parents
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def get_revision_graph_with_ghosts(self, revision_ids=None):
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graph = deprecated_graph.Graph()
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if revision_ids is not None:
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revision_ids = [ids.convert_revision_id_bzr_to_git(r)
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for r in revision_ids]
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for node, parents in self._git.ancestry(revision_ids).iteritems():
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bzr_node = ids.convert_revision_id_git_to_bzr(node)
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bzr_parents = [ids.convert_revision_id_git_to_bzr(n)
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graph.add_node(bzr_node, bzr_parents)
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def get_revision(self, revision_id):
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git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
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commit = self._git.commit(git_commit_id)
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raise errors.NoSuchRevision(self, revision_id)
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# print "fetched revision:", git_commit_id
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revision = mapping.import_commit(commit)
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assert revision is not None
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if revision_id in self._revision_cache:
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return self._revision_cache[revision_id]
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raw = self._git.rev_list(
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[ids.convert_revision_id_bzr_to_git(revision_id)],
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max_count=1, header=True)
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return self._parse_rev(raw)
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def has_revision(self, revision_id):
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self.get_revision(revision_id)
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except errors.NoSuchRevision:
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except NoSuchRevision:
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def get_revisions(self, revids):
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return [self.get_revision(r) for r in revids]
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def get_revisions(self, revisions):
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return [self.get_revision(r) for r in revisions]
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def _parse_rev(klass, raw):
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"""Parse a single git revision.
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* The first line is the git commit id.
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* Following lines conform to the 'name value' structure, until the
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* All lines after the first blank line and until the NULL line have 4
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leading spaces and constitute the commit message.
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:param raw: sequence of newline-terminated strings, its last item is a
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single NULL character.
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:return: a `bzrlib.revision.Revision` object.
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committer_was_set = False
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revision_id = ids.convert_revision_id_git_to_bzr(raw[0][:-1])
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rev = revision.Revision(revision_id)
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rev.inventory_sha1 = ""
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assert raw[-1] == '\x00', (
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"Last item of raw was not a single NULL character.")
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for line in raw[1:-1]:
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assert line[:4] == ' ', (
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"Unexpected line format in commit message: %r" % line)
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message_lines.append(line[4:])
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name, value = line[:-1].split(' ', 1)
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rev.parent_ids.append(
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ids.convert_revision_id_git_to_bzr(value))
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author, timestamp, timezone = value.rsplit(' ', 2)
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rev.properties['author'] = author
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rev.properties['git-author-timestamp'] = timestamp
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rev.properties['git-author-timezone'] = timezone
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if not committer_was_set:
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rev.committer = author
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rev.timestamp = float(timestamp)
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rev.timezone = klass._parse_tz(timezone)
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if name == 'committer':
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committer_was_set = True
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committer, timestamp, timezone = value.rsplit(' ', 2)
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rev.committer = committer
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rev.timestamp = float(timestamp)
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rev.timezone = klass._parse_tz(timezone)
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rev.properties['git-tree-id'] = value
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rev.message = ''.join(message_lines)
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def _parse_tz(klass, tz):
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"""Parse a timezone specification in the [+|-]HHMM format.
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:return: the timezone offset in seconds.
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sign = {'+': +1, '-': -1}[tz[0]]
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minutes = int(tz[3:])
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return float(sign * 60 * (60 * hours + minutes))
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def revision_trees(self, revids):
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for revid in revids:
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yield self.revision_tree(revid)
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def revision_tree(self, revision_id):
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revision_id = revision.ensure_null(revision_id)
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if revision_id == revision.NULL_REVISION:
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inv = inventory.Inventory(root_id=None)
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inv.revision_id = revision_id
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return revisiontree.RevisionTree(self, inv, revision_id)
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return GitRevisionTree(self, revision_id)
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def get_inventory(self, revision_id):
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assert revision_id != None
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return self.revision_tree(revision_id).inventory
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def set_make_working_trees(self, trees):
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def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
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return self._git.fetch_objects(determine_wants, graph_walker, progress)
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def _get_versioned_file_checker(self, text_key_references=None,
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return GitVersionedFileChecker(self,
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text_key_references=text_key_references, ancestors=ancestors)
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class GitVersionedFileChecker(repository._VersionedFileChecker):
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def _check_file_version_parents(self, texts, progress_bar):
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class GitRepositoryFormat(repository.RepositoryFormat):
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"""Git repository format."""
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supports_tree_reference = False
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rich_root_data = True
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def get_format_description(self):
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return "Git Repository"
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def initialize(self, url, shared=False, _internal=False):
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raise errors.UninitializableFormat(self)
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def check_conversion_target(self, target_repo_format):
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return target_repo_format.rich_root_data
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def get_foreign_tests_repository_factory(self):
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from bzrlib.plugins.git.tests.test_repository import ForeignTestsRepositoryFactory
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return ForeignTestsRepositoryFactory()
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def network_name(self):
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revision = self.get_revision(revision_id)
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inventory = GitInventory(revision_id)
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tree_id = revision.properties['git-tree-id']
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type_map = {'blob': 'file', 'tree': 'directory' }
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def get_inventory(tree_id, prefix):
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for perms, type, obj_id, name in self._git.get_inventory(tree_id):
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full_path = prefix + name
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executable = (perms[-3] in ('1', '3', '5', '7'))
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entry = GitEntry(full_path, type_map[type], revision_id,
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text_sha1, executable)
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inventory.entries[full_path] = entry
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get_inventory(obj_id, full_path+'/')
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get_inventory(tree_id, '')
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class GitRevisionTree(object):
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def __init__(self, repository, revision_id):
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self.repository = repository
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self.revision_id = revision_id
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self.inventory = repository.get_inventory(revision_id)
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def get_file(self, file_id):
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return iterablefile.IterableFile(self.get_file_lines(file_id))
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def get_file_lines(self, file_id):
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obj_id = self.inventory[file_id].text_sha1
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return self.repository._git.cat_file('blob', obj_id)
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def is_executable(self, file_id):
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return self.inventory[file_id].executable
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class GitInventory(object):
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def __init__(self, revision_id):
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self.root = GitEntry('', 'directory', revision_id)
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self.entries[''] = self.root
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def __getitem__(self, key):
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return self.entries[key]
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def iter_entries(self):
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return iter(sorted(self.entries.items()))
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def iter_entries_by_dir(self):
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return self.iter_entries()
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return len(self.entries)
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class GitEntry(object):
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def __init__(self, path, kind, revision, text_sha1=None, executable=False,
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self.executable = executable
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self.name = osutils.basename(path)
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self.parent_id = None
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self.parent_id = osutils.dirname(path)
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self.revision = revision
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self.symlink_target = None
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self.text_sha1 = text_sha1
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self.text_size = None
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return "GitEntry(%r, %r, %r, %r)" % (self.path, self.kind,
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self.revision, self.parent_id)