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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.trace import mutter
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from bzrlib.transport import get_transport
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from bzrlib.plugins.git.foreign import (
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from bzrlib.plugins.git.mapping import default_mapping
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from bzrlib.plugins.git import git
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class GitTags(object):
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def __init__(self, tags):
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return iter(self._tags)
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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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from dulwich.objects import (
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class GitRepository(ForeignRepository):
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"""An adapter to git repositories for bzr."""
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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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ForeignRepository.__init__(self, GitFormat(), gitdir, lockfiles)
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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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def supports_rich_root(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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def get_mapping(self):
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return default_mapping
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def make_working_trees(self):
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return not self._git.bare
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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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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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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 = versionedfiles.VirtualSignatureTexts(self)
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self.revisions = versionedfiles.VirtualRevisionTexts(self)
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self.tags = GitTags(self._git.get_tags())
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from bzrlib.plugins.git import fetch
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repository.InterRepository.register_optimiser(fetch.InterFromGitRepository)
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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 _iter_revision_ids(self):
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mapping = self.get_mapping()
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for sha in self._git.object_store:
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o = self._git.object_store[sha]
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if not isinstance(o, Commit):
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rev, roundtrip_revid, verifiers = mapping.import_commit(o,
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self.lookup_foreign_revision_id)
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yield o.id, rev.revision_id, roundtrip_revid
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def all_revision_ids(self):
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ret = set([revision.NULL_REVISION])
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if self._git.heads() == []:
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bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in self._git.heads()]
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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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for git_sha, revid, roundtrip_revid in self._iter_revision_ids():
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ret.add(roundtrip_revid)
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def supports_rich_root(self):
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#def get_revision_delta(self, revision_id):
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# parent_revid = self.get_revision(revision_id).parent_ids[0]
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# diff = self._git.diff(ids.convert_revision_id_bzr_to_git(parent_revid),
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# ids.convert_revision_id_bzr_to_git(revision_id))
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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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mutter("get_parent_map(%r)", 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 = self.lookup_git_revid(revision_id, self.get_mapping())
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commit = self._git.commit(hexsha)
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hexsha, mapping = self.lookup_bzr_revision_id(revision_id)
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commit = self._git[hexsha]
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parent_map[revision_id] = [self.get_mapping().revision_id_foreign_to_bzr(p) for p in commit.parents]
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parent_map[revision_id] = [
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self.lookup_foreign_revision_id(p, mapping)
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for p in commit.parents]
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return parent_map
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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 self._all_revision_ids()
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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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if rev == revision.NULL_REVISION:
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ancestry.append(rev)
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ancestry.reverse()
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def _warn_if_deprecated(self):
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# This class isn't deprecated
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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_revision_id(self, revid):
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def pack(self, hint=None, clean_obsolete_packs=False):
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self._git.object_store.pack_loose_objects()
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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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# Yes, this doesn't really work, but good enough as a stub
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return osutils.sha(rev_id).hexdigest(), self.get_mapping()
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assert type(foreign_revid) is str
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mapping = self.get_mapping()
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from dulwich.protocol import (
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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]
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rev, roundtrip_revid, verifiers = mapping.import_commit(commit,
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# FIXME: check testament before doing this?
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return roundtrip_revid
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return rev.revision_id
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def has_signature_for_revision_id(self, revision_id):
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def get_mapping(self):
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return default_mapping
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def lookup_git_revid(self, bzr_revid, mapping):
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def lookup_bzr_revision_id(self, bzr_revid, mapping=None):
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return mapping.revision_id_bzr_to_foreign(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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mapping = self.get_mapping()
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return (self._git.refs[mapping.revid_as_refname(bzr_revid)],
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# Update refs from Git commit objects
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# FIXME: Hitting this a lot will be very inefficient...
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for git_sha, revid, roundtrip_revid in self._iter_revision_ids():
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if not roundtrip_revid:
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refname = mapping.revid_as_refname(roundtrip_revid)
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self._git.refs[refname] = git_sha
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if roundtrip_revid == bzr_revid:
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return git_sha, mapping
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raise errors.NoSuchRevision(self, bzr_revid)
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def get_revision(self, revision_id):
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git_commit_id = self.lookup_git_revid(revision_id, self.get_mapping())
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commit = self._git.commit(git_commit_id)
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# print "fetched revision:", git_commit_id
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git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
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commit = self._git[git_commit_id]
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raise errors.NoSuchRevision(self, revision_id)
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revision = self._parse_rev(commit, self.get_mapping())
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revision, roundtrip_revid, verifiers = mapping.import_commit(
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commit, self.lookup_foreign_revision_id)
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assert revision is not None
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# FIXME: check verifiers ?
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revision.revision_id = roundtrip_revid
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def has_revision(self, revision_id):
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self.get_revision(revision_id)
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git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
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except errors.NoSuchRevision:
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return (git_commit_id in self._git)
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def has_revisions(self, revision_ids):
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return set(filter(self.has_revision, revision_ids))
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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 _parse_rev(klass, commit, mapping):
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"""Convert a git commit to a bzr revision.
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:return: a `bzrlib.revision.Revision` object.
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raise AssertionError("Commit object can't be None")
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rev = ForeignRevision(commit.id, mapping, mapping.revision_id_foreign_to_bzr(commit.id))
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rev.parent_ids = tuple([mapping.revision_id_foreign_to_bzr(p) for p in commit.parents])
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rev.message = commit.message.decode("utf-8", "replace")
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rev.committer = str(commit.committer).decode("utf-8", "replace")
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if commit.committer != commit.author:
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rev.properties['author'] = str(commit.author).decode("utf-8", "replace")
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rev.timestamp = commit.commit_time
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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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def set_make_working_trees(self, trees):
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def escape_file_id(file_id):
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return file_id.replace('_', '__').replace(' ', '_s')
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def unescape_file_id(file_id):
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return file_id.replace("_s", " ").replace("__", "_")
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class GitRevisionTree(revisiontree.RevisionTree):
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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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git_id = repository.lookup_git_revid(revision_id, repository.get_mapping())
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self.tree = repository._git.commit(git_id).tree
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self._inventory = inventory.Inventory(revision_id=revision_id)
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self._inventory.root.revision = revision_id
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self._build_inventory(self.tree, self._inventory.root, "")
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def get_revision_id(self):
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return self.revision_id
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def get_file_text(self, file_id):
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entry = self._inventory[file_id]
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if entry.kind == 'directory': return ""
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return self._repository._git.get_blob(entry.text_id).data
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def _build_inventory(self, tree_id, ie, path):
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assert isinstance(path, str)
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tree = self._repository._git.get_tree(tree_id)
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for mode, name, hexsha in tree.entries():
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basename = name.decode("utf-8")
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child_path = urlutils.join(path, name)
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file_id = escape_file_id(child_path.encode('utf-8'))
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entry_kind = (mode & 0700000) / 0100000
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child_ie = inventory.InventoryDirectory(file_id, basename, ie.file_id)
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elif entry_kind == 1:
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file_kind = (mode & 070000) / 010000
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b = self._repository._git.get_blob(hexsha)
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child_ie = inventory.InventoryFile(file_id, basename, ie.file_id)
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child_ie.text_sha1 = osutils.sha_string(b.data)
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child_ie = inventory.InventoryLink(file_id, basename, ie.file_id)
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child_ie.text_sha1 = osutils.sha_string("")
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raise AssertionError(
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"Unknown file kind, perms=%o." % (mode,))
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child_ie.text_id = b.id
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child_ie.text_size = len(b.data)
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raise AssertionError(
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"Unknown blob kind, perms=%r." % (mode,))
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fs_mode = mode & 0777
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child_ie.executable = bool(fs_mode & 0111)
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child_ie.revision = self.revision_id
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self._inventory.add(child_ie)
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self._build_inventory(hexsha, child_ie, child_path)
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class GitFormat(object):
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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
added
removed
repository.py
