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# Copyright (C) 2007 Canonical Ltd
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# Copyright (C) 2008-2009 Jelmer Vernooij <jelmer@samba.org>
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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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# 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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# 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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"""An adapter between a Git Repository and a Bazaar Branch"""
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from bzrlib.foreign import (
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from bzrlib.trace import (
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from bzrlib.transport import (
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from bzrlib.plugins.git.foreign import (
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from bzrlib.plugins.git.mapping import (
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inventory_to_tree_and_blobs,
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from bzrlib.plugins.git.versionedfiles import (
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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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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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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.InterGitRepository,
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push.InterToGitRepository]:
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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):
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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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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 = versionedfiles.VirtualSignatureTexts(self)
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self.revisions = versionedfiles.VirtualRevisionTexts(self)
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self.inventories = versionedfiles.VirtualInventoryTexts(self)
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self.texts = GitTexts(self)
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self.tags = GitTags(self._git.get_tags())
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def all_revision_ids(self):
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ret = set([revision.NULL_REVISION])
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heads = self._git.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 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, mapping = self.lookup_git_revid(revision_id)
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commit = self._git.commit(hexsha)
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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 import_revision_gist(self, source, revid, parent_lookup):
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"""Import the gist of a revision into this Git repository.
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rev = source.get_revision(revid)
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for sha, object, path in inventory_to_tree_and_blobs(source, None, revid):
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objects.append((object, path))
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commit = revision_to_commit(rev, tree_sha, parent_lookup)
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objects.append((commit, None))
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self._git.object_store.add_objects(objects)
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return commit.sha().hexdigest()
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def dfetch(self, source, stop_revision):
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"""Import the gist of the ancestry of a particular revision."""
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if stop_revision is None:
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raise NotImplementedError
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def parent_lookup(revid):
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return gitidmap[revid]
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return self.lookup_git_revid(revid)[0]
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graph = source.get_graph()
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ancestry = [x for x in source.get_ancestry(stop_revision) if x is not None]
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for revid in graph.iter_topo_order(ancestry):
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if not self.has_revision(revid):
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pb = ui.ui_factory.nested_progress_bar()
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for i, revid in enumerate(todo):
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pb.update("pushing revisions", i, len(todo))
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git_commit = self.import_revision_gist(source, revid,
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gitidmap[revid] = git_commit
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git_revid = self.get_mapping().revision_id_foreign_to_bzr(
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revidmap[revid] = git_revid
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source.fetch(self, revision_id=revidmap[stop_revision])
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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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"""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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def has_signature_for_revision_id(self, revision_id):
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def lookup_git_revid(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(self, revision_id):
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git_commit_id, mapping = self.lookup_git_revid(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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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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def get_revisions(self, revids):
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return [self.get_revision(r) for r in revids]
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def revision_trees(self, 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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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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assert isinstance(revision_id, str)
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git_id, self.mapping = repository.lookup_git_revid(revision_id)
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commit = repository._git.commit(git_id)
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raise errors.NoSuchRevision(repository, revision_id)
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self.tree = commit.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.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 = self.mapping.generate_file_id(child_path)
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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.symlink_target = b.data
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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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# TODO: This should be set to the revision id in which
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# child_ie was last changed instead.
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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 GitRepositoryFormat(repository.RepositoryFormat):
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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 bzr_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
added
removed
repository.py
