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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 (
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from bzrlib.transport import (
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from bzrlib.plugins.git.commit import (
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from bzrlib.plugins.git.inventory 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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ForeignRepository.__init__(self, GitRepositoryFormat(), gitdir,
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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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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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interrepo = repository.InterRepository.get(source, self)
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return interrepo.dfetch_refs(stop_revision)
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def fetch_refs(self, source, stop_revision):
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interrepo = repository.InterRepository.get(source, self)
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return interrepo.fetch_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._git.object_store)
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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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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 = self.get_mapping().import_commit(o,
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self.lookup_foreign_revision_id)
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yield o.id, rev.revision_id
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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.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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for git_sha, revid in self._iter_revision_ids():
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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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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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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] = [mapping.revision_id_foreign_to_bzr(p) for p in commit.parents]
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parent_map[revision_id] = [self.lookup_foreign_revision_id(p, mapping) 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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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 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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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 = mapping.import_commit(commit, lambda x: None)
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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 lookup_git_revid(self, bzr_revid):
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def lookup_bzr_revision_id(self, bzr_revid, mapping=None):
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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)], mapping
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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 in self._iter_revision_ids():
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self._git.refs[mapping.revid_as_refname(revid)] = git_sha
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if 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, mapping = self.lookup_git_revid(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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commit = self._git[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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revision = mapping.import_commit(commit,
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self.lookup_foreign_revision_id)
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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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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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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._revision_id = revision_id
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self._repository = repository
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store = repository._git.object_store
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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 = store[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 = GitInventory(self.tree, self.mapping, store,
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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, path=None):
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entry = self._inventory._get_ie(path)
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entry = self._inventory[file_id]
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if entry.kind == 'directory': return ""
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return entry.object.data
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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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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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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 (
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ForeignTestsRepositoryFactory,
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return ForeignTestsRepositoryFactory()
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def network_name(self):