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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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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""An adapter between a Git Repository and a Bazaar Branch"""
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from __future__ import absolute_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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revision as _mod_revision,
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from ..decorators import only_raises
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from ..foreign import (
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from ..sixish import (
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from .filegraph import (
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GitFileLastChangeScanner,
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GitFileParentProvider,
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from .mapping import (
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from dulwich.errors import (
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from dulwich.objects import (
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from dulwich.object_store import (
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class GitCheck(check.Check):
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def __init__(self, repository, check_repo=True):
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self.repository = repository
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self.check_repo = check_repo
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self.checked_rev_cnt = 0
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self.object_count = None
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def check(self, callback_refs=None, check_repo=True):
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if callback_refs is None:
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with self.repository.lock_read(), \
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ui.ui_factory.nested_progress_bar() as self.progress:
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shas = set(self.repository._git.object_store)
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self.object_count = len(shas)
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# TODO(jelmer): Check more things
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for i, sha in enumerate(shas):
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self.progress.update('checking objects', i, self.object_count)
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o = self.repository._git.object_store[sha]
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except Exception as e:
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self.problems.append((sha, e))
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def _report_repo_results(self, verbose):
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trace.note('checked repository {0} format {1}'.format(
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self.repository.user_url,
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self.repository._format))
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trace.note('%6d objects', self.object_count)
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for sha, problem in self.problems:
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trace.note('%s: %s', sha, problem)
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def report_results(self, verbose):
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self._report_repo_results(verbose)
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_optimisers_loaded = False
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def lazy_load_optimisers():
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global _optimisers_loaded
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if _optimisers_loaded:
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from . import interrepo
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for optimiser in [interrepo.InterRemoteGitNonGitRepository,
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interrepo.InterLocalGitNonGitRepository,
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interrepo.InterLocalGitLocalGitRepository,
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interrepo.InterRemoteGitLocalGitRepository,
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interrepo.InterToLocalGitRepository,
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interrepo.InterToRemoteGitRepository,
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repository.InterRepository.register_optimiser(optimiser)
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_optimisers_loaded = True
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class GitRepository(ForeignRepository):
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"""An adapter to git repositories for bzr."""
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_serializer = None
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def __init__(self, gitdir, lockfiles):
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ForeignRepository.__init__(self, GitFormat(), gitdir, lockfiles)
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from bzrlib.plugins.git import fetch
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repository.InterRepository.register_optimiser(fetch.InterGitRepository)
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vcs = foreign_vcs_git
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def __init__(self, gitdir):
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self._transport = gitdir.root_transport
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super(GitRepository, self).__init__(GitRepositoryFormat(),
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gitdir, control_files=None)
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self.base = gitdir.root_transport.base
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lazy_load_optimisers()
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self._lock_mode = None
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def add_fallback_repository(self, basis_url):
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raise errors.UnstackableRepositoryFormat(self._format,
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self.control_transport.base)
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def is_shared(self):
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def get_physical_lock_status(self):
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def lock_write(self):
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"""See Branch.lock_write()."""
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if self._lock_mode != 'w':
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raise errors.ReadOnlyError(self)
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self._lock_count += 1
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self._lock_mode = 'w'
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self._transaction = transactions.WriteTransaction()
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return repository.RepositoryWriteLockResult(self.unlock, None)
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def break_lock(self):
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raise NotImplementedError(self.break_lock)
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def dont_leave_lock_in_place(self):
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raise NotImplementedError(self.dont_leave_lock_in_place)
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def leave_lock_in_place(self):
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raise NotImplementedError(self.leave_lock_in_place)
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if self._lock_mode not in ('r', 'w'):
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self._lock_count += 1
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self._lock_mode = 'r'
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self._transaction = transactions.ReadOnlyTransaction()
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return lock.LogicalLockResult(self.unlock)
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@only_raises(errors.LockNotHeld, errors.LockBroken)
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if self._lock_count == 0:
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raise errors.LockNotHeld(self)
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if self._lock_count == 1 and self._lock_mode == 'w':
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if self._write_group is not None:
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self.abort_write_group()
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self._lock_count -= 1
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self._lock_mode = None
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raise errors.BzrError(
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'Must end write groups before releasing write locks.')
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self._lock_count -= 1
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if self._lock_count == 0:
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self._lock_mode = None
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transaction = self._transaction
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self._transaction = None
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def is_write_locked(self):
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return (self._lock_mode == 'w')
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return (self._lock_mode is not None)
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def get_transaction(self):
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"""See Repository.get_transaction()."""
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if self._transaction is None:
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return transactions.PassThroughTransaction()
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return self._transaction
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def reconcile(self, other=None, thorough=False):
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"""Reconcile this repository."""
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from ..reconcile import ReconcileResult
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ret = ReconcileResult()
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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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return not self._git.get_config().get_boolean(("core", ), "bare")
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def revision_graph_can_have_wrong_parents(self):
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def add_signature_text(self, revid, signature):
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raise errors.UnsupportedOperation(self.add_signature_text, self)
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def sign_revision(self, revision_id, gpg_strategy):
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raise errors.UnsupportedOperation(self.add_signature_text, 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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def __init__(self, gitdir):
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GitRepository.__init__(self, gitdir)
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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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self._file_change_scanner = GitFileLastChangeScanner(self)
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self._transaction = None
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def get_commit_builder(self, branch, parents, config, timestamp=None,
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timezone=None, committer=None, revprops=None,
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revision_id=None, lossy=False):
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"""Obtain a CommitBuilder for this repository.
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:param branch: Branch to commit to.
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:param parents: Revision ids of the parents of the new revision.
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:param config: Configuration to use.
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:param timestamp: Optional timestamp recorded for commit.
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:param timezone: Optional timezone for timestamp.
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:param committer: Optional committer to set for commit.
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:param revprops: Optional dictionary of revision properties.
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:param revision_id: Optional revision id.
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:param lossy: Whether to discard data that can not be natively
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represented, when pushing to a foreign VCS
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builder = GitCommitBuilder(
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self, parents, config, timestamp, timezone, committer, revprops,
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self.start_write_group()
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def get_file_graph(self):
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return _mod_graph.Graph(GitFileParentProvider(
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self._file_change_scanner))
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def iter_files_bytes(self, desired_files):
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"""Iterate through file versions.
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Files will not necessarily be returned in the order they occur in
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desired_files. No specific order is guaranteed.
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Yields pairs of identifier, bytes_iterator. identifier is an opaque
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value supplied by the caller as part of desired_files. It should
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uniquely identify the file version in the caller's context. (Examples:
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an index number or a TreeTransform trans_id.)
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bytes_iterator is an iterable of bytestrings for the file. The
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kind of iterable and length of the bytestrings are unspecified, but for
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this implementation, it is a list of bytes produced by
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VersionedFile.get_record_stream().
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:param desired_files: a list of (file_id, revision_id, identifier)
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for (file_id, revision_id, identifier) in desired_files:
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per_revision.setdefault(revision_id, []).append(
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(file_id, identifier))
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for revid, files in viewitems(per_revision):
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(commit_id, mapping) = self.lookup_bzr_revision_id(revid)
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except errors.NoSuchRevision:
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raise errors.RevisionNotPresent(revid, self)
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commit = self._git.object_store[commit_id]
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raise errors.RevisionNotPresent(revid, self)
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root_tree = commit.tree
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for fileid, identifier in files:
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path = mapping.parse_file_id(fileid)
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raise errors.RevisionNotPresent((fileid, revid), self)
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obj = tree_lookup_path(
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self._git.object_store.__getitem__, root_tree,
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path.encode('utf-8'))
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if isinstance(obj, tuple):
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(mode, item_id) = obj
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obj = self._git.object_store[item_id]
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raise errors.RevisionNotPresent((fileid, revid), self)
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if obj.type_name == b"tree":
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yield (identifier, [])
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elif obj.type_name == b"blob":
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yield (identifier, obj.chunked)
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raise AssertionError("file text resolved to %r" % obj)
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def gather_stats(self, revid=None, committers=None):
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"""See Repository.gather_stats()."""
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result = super(LocalGitRepository, self).gather_stats(
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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 o.type_name == b"commit":
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result['revisions'] = len(revs)
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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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revid = mapping.revision_id_foreign_to_bzr(o)
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roundtrip_revid = mapping.get_revision_id(o)
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yield o.id, revid, (roundtrip_revid if revid != roundtrip_revid else None)
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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 _get_parents(self, revid, no_alternates=False):
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if type(revid) != bytes:
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(hexsha, mapping) = self.lookup_bzr_revision_id(revid)
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except errors.NoSuchRevision:
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# FIXME: Honor no_alternates setting
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commit = self._git.object_store[hexsha]
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for p in commit.parents:
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ret.append(self.lookup_foreign_revision_id(p, mapping))
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ret.append(mapping.revision_id_foreign_to_bzr(p))
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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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def _get_parent_map_no_fallbacks(self, revids):
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return self.get_parent_map(revids, no_alternates=True)
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def get_parent_map(self, revids, no_alternates=False):
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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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parents = self._get_parents(
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revision_id, no_alternates=no_alternates)
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if revision_id == _mod_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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parent_map[revision_id] = [self.get_mapping().revision_id_foreign_to_bzr(p) for p in commit.parents]
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if len(parents) == 0:
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parents = [_mod_revision.NULL_REVISION]
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parent_map[revision_id] = tuple(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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def get_known_graph_ancestry(self, revision_ids):
403
"""Return the known graph for a set of revision ids and their ancestors.
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if revision_id is None:
139
return self._all_revision_ids()
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assert isinstance(revision_id, str)
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graph = self.get_graph()
143
for rev, parents in graph.iter_ancestry([revision_id]):
144
if rev == revision.NULL_REVISION:
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pending = set(revision_ids)
409
for revid in pending:
410
if revid == _mod_revision.NULL_REVISION:
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parents = self._get_parents(revid)
413
if parents is not None:
414
this_parent_map[revid] = parents
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parent_map.update(this_parent_map)
417
for values in viewvalues(this_parent_map):
418
pending.update(values)
419
pending = pending.difference(parent_map)
420
return _mod_graph.KnownGraph(parent_map)
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422
def get_signature_text(self, revision_id):
151
raise errors.NoSuchRevision(self, revision_id)
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def lookup_revision_id(self, revid):
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git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
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commit = self._git.object_store[git_commit_id]
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raise errors.NoSuchRevision(self, revision_id)
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if commit.gpgsig is None:
429
raise errors.NoSuchRevision(self, revision_id)
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def check(self, revision_ids=None, callback_refs=None, check_repo=True):
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result = GitCheck(self, check_repo=check_repo)
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result.check(callback_refs)
437
def pack(self, hint=None, clean_obsolete_packs=False):
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self._git.object_store.pack_loose_objects()
440
def lookup_foreign_revision_id(self, foreign_revid, mapping=None):
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441
"""Lookup a revision id.
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:param revid: Bazaar revision id.
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:return: Tuple with git revisionid and mapping.
443
:param foreign_revid: Foreign revision id to look up
444
:param mapping: Mapping to use (use default mapping if not specified)
445
:raise KeyError: If foreign revision was not found
446
:return: bzr revision id
159
# Yes, this doesn't really work, but good enough as a stub
160
return osutils.sha(rev_id).hexdigest(), self.get_mapping()
448
if not isinstance(foreign_revid, bytes):
449
raise TypeError(foreign_revid)
451
mapping = self.get_mapping()
452
if foreign_revid == ZERO_SHA:
453
return _mod_revision.NULL_REVISION
454
commit = self._git.object_store.peel_sha(foreign_revid)
455
if not isinstance(commit, Commit):
456
raise NotCommitError(commit.id)
457
revid = mapping.get_revision_id(commit)
458
# FIXME: check testament before doing this?
162
461
def has_signature_for_revision_id(self, revision_id):
165
def lookup_git_revid(self, bzr_revid, mapping):
167
return mapping.revision_id_bzr_to_foreign(bzr_revid)
462
"""Check whether a GPG signature is present for this revision.
464
This is never the case for Git repositories.
467
self.get_signature_text(revision_id)
468
except errors.NoSuchRevision:
473
def verify_revision_signature(self, revision_id, gpg_strategy):
474
"""Verify the signature on a revision.
476
:param revision_id: the revision to verify
477
:gpg_strategy: the GPGStrategy object to used
479
:return: gpg.SIGNATURE_VALID or a failed SIGNATURE_ value
481
from breezy import gpg
482
with self.lock_read():
483
git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
485
commit = self._git.object_store[git_commit_id]
487
raise errors.NoSuchRevision(self, revision_id)
489
if commit.gpgsig is None:
490
return gpg.SIGNATURE_NOT_SIGNED, None
492
without_sig = Commit.from_string(commit.as_raw_string())
493
without_sig.gpgsig = None
495
(result, key, plain_text) = gpg_strategy.verify(
496
without_sig.as_raw_string(), commit.gpgsig)
499
def lookup_bzr_revision_id(self, bzr_revid, mapping=None):
500
"""Lookup a bzr revision id in a Git repository.
502
:param bzr_revid: Bazaar revision id
503
:param mapping: Optional mapping to use
504
:return: Tuple with git commit id, mapping that was used and supplement
508
(git_sha, mapping) = mapping_registry.revision_id_bzr_to_foreign(
168
510
except errors.InvalidRevisionId:
169
raise errors.NoSuchRevision(self, bzr_revid)
512
mapping = self.get_mapping()
514
return (self._git.refs[mapping.revid_as_refname(bzr_revid)],
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# Update refs from Git commit objects
518
# FIXME: Hitting this a lot will be very inefficient...
519
pb = ui.ui_factory.nested_progress_bar()
521
for i, (git_sha, revid, roundtrip_revid) in enumerate(
522
self._iter_revision_ids()):
523
if not roundtrip_revid:
525
pb.update("resolving revision id", i)
526
refname = mapping.revid_as_refname(roundtrip_revid)
527
self._git.refs[refname] = git_sha
528
if roundtrip_revid == bzr_revid:
529
return git_sha, mapping
532
raise errors.NoSuchRevision(self, bzr_revid)
534
return (git_sha, mapping)
171
536
def get_revision(self, revision_id):
172
git_commit_id = self.lookup_git_revid(revision_id, self.get_mapping())
537
if not isinstance(revision_id, bytes):
538
raise errors.InvalidRevisionId(revision_id, self)
539
git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
174
commit = self._git.commit(git_commit_id)
541
commit = self._git.object_store[git_commit_id]
176
543
raise errors.NoSuchRevision(self, revision_id)
177
# print "fetched revision:", git_commit_id
178
revision = self.get_mapping().import_commit(commit)
179
assert revision is not None
544
revision, roundtrip_revid, verifiers = mapping.import_commit(
545
commit, self.lookup_foreign_revision_id)
548
# FIXME: check verifiers ?
550
revision.revision_id = roundtrip_revid
182
553
def has_revision(self, revision_id):
554
"""See Repository.has_revision."""
555
if revision_id == _mod_revision.NULL_REVISION:
184
self.get_revision(revision_id)
558
git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
185
559
except errors.NoSuchRevision:
190
def get_revisions(self, revids):
191
return [self.get_revision(r) for r in revids]
561
return (git_commit_id in self._git)
563
def has_revisions(self, revision_ids):
564
"""See Repository.has_revisions."""
565
return set(filter(self.has_revision, revision_ids))
567
def iter_revisions(self, revision_ids):
568
"""See Repository.get_revisions."""
569
for revid in revision_ids:
571
rev = self.get_revision(revid)
572
except errors.NoSuchRevision:
193
576
def revision_trees(self, revids):
577
"""See Repository.revision_trees."""
194
578
for revid in revids:
195
579
yield self.revision_tree(revid)
197
581
def revision_tree(self, revision_id):
198
revision_id = revision.ensure_null(revision_id)
200
if revision_id == revision.NULL_REVISION:
201
inv = inventory.Inventory(root_id=None)
202
inv.revision_id = revision_id
203
return revisiontree.RevisionTree(self, inv, revision_id)
205
return GitRevisionTree(self, self.get_mapping(), revision_id)
207
def get_inventory(self, revision_id):
208
assert revision_id != None
209
return self.revision_tree(revision_id).inventory
582
"""See Repository.revision_tree."""
583
if revision_id is None:
584
raise ValueError('invalid revision id %s' % revision_id)
585
return GitRevisionTree(self, revision_id)
587
def get_deltas_for_revisions(self, revisions, specific_fileids=None):
588
"""Produce a generator of revision deltas.
590
Note that the input is a sequence of REVISIONS, not revision_ids.
591
Trees will be held in memory until the generator exits.
592
Each delta is relative to the revision's lefthand predecessor.
594
:param specific_fileids: if not None, the result is filtered
595
so that only those file-ids, their parents and their
596
children are included.
598
# Get the revision-ids of interest
599
required_trees = set()
600
for revision in revisions:
601
required_trees.add(revision.revision_id)
602
required_trees.update(revision.parent_ids[:1])
604
trees = dict((t.get_revision_id(), t) for
605
t in self.revision_trees(required_trees))
607
# Calculate the deltas
608
for revision in revisions:
609
if not revision.parent_ids:
610
old_tree = self.revision_tree(_mod_revision.NULL_REVISION)
612
old_tree = trees[revision.parent_ids[0]]
613
new_tree = trees[revision.revision_id]
614
if specific_fileids is not None:
615
specific_files = [new_tree.id2path(
616
fid) for fid in specific_fileids]
618
specific_files = None
619
yield new_tree.changes_from(
620
old_tree, specific_files=specific_files)
211
622
def set_make_working_trees(self, trees):
214
def fetch_objects(self, determine_wants, graph_walker, progress=None):
215
return self._git.fetch_objects(determine_wants, graph_walker, progress)
218
class GitRevisionTree(revisiontree.RevisionTree):
220
def __init__(self, repository, mapping, revision_id):
221
self._repository = repository
222
self.revision_id = revision_id
223
assert isinstance(revision_id, str)
224
self.mapping = mapping
225
git_id = repository.lookup_git_revid(revision_id, self.mapping)
227
commit = repository._git.commit(git_id)
229
raise errors.NoSuchRevision(repository, revision_id)
230
self.tree = commit.tree
231
self._inventory = inventory.Inventory(revision_id=revision_id)
232
self._inventory.root.revision = revision_id
233
self._build_inventory(self.tree, self._inventory.root, "")
235
def get_revision_id(self):
236
return self.revision_id
238
def get_file_text(self, file_id):
239
entry = self._inventory[file_id]
240
if entry.kind == 'directory': return ""
241
return self._repository._git.get_blob(entry.text_id).data
243
def _build_inventory(self, tree_id, ie, path):
244
assert isinstance(path, str)
245
tree = self._repository._git.tree(tree_id)
246
for mode, name, hexsha in tree.entries():
247
basename = name.decode("utf-8")
251
child_path = urlutils.join(path, name)
252
file_id = self.mapping.generate_file_id(child_path)
253
entry_kind = (mode & 0700000) / 0100000
255
child_ie = inventory.InventoryDirectory(file_id, basename, ie.file_id)
256
elif entry_kind == 1:
257
file_kind = (mode & 070000) / 010000
258
b = self._repository._git.get_blob(hexsha)
260
child_ie = inventory.InventoryFile(file_id, basename, ie.file_id)
261
child_ie.text_sha1 = osutils.sha_string(b.data)
263
child_ie = inventory.InventoryLink(file_id, basename, ie.file_id)
264
child_ie.text_sha1 = osutils.sha_string("")
266
raise AssertionError(
267
"Unknown file kind, perms=%o." % (mode,))
268
child_ie.text_id = b.id
269
child_ie.text_size = len(b.data)
271
raise AssertionError(
272
"Unknown blob kind, perms=%r." % (mode,))
273
fs_mode = mode & 0777
274
child_ie.executable = bool(fs_mode & 0111)
275
child_ie.revision = self.revision_id
276
self._inventory.add(child_ie)
278
self._build_inventory(hexsha, child_ie, child_path)
281
class GitFormat(object):
283
supports_tree_reference = False
623
raise errors.UnsupportedOperation(self.set_make_working_trees, self)
625
def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
626
progress=None, limit=None):
627
return self._git.fetch_objects(determine_wants, graph_walker, progress,
631
class GitRepositoryFormat(repository.RepositoryFormat):
632
"""Git repository format."""
634
supports_versioned_directories = False
635
supports_tree_reference = True
284
636
rich_root_data = True
637
supports_leaving_lock = False
639
supports_funky_characters = True
640
supports_external_lookups = False
641
supports_full_versioned_files = False
642
supports_revision_signatures = False
643
supports_nesting_repositories = False
644
revision_graph_can_have_wrong_parents = False
645
supports_unreferenced_revisions = True
646
supports_setting_revision_ids = False
647
supports_storing_branch_nick = False
648
supports_overriding_transport = False
649
supports_custom_revision_properties = False
650
records_per_file_revision = False
653
def _matchingcontroldir(self):
654
from .dir import LocalGitControlDirFormat
655
return LocalGitControlDirFormat()
286
657
def get_format_description(self):
287
658
return "Git Repository"
289
def initialize(self, url, shared=False, _internal=False):
290
raise bzr_errors.UninitializableFormat(self)
660
def initialize(self, controldir, shared=False, _internal=False):
661
from .dir import GitDir
662
if not isinstance(controldir, GitDir):
663
raise errors.UninitializableFormat(self)
664
return controldir.open_repository()
292
666
def check_conversion_target(self, target_repo_format):
293
667
return target_repo_format.rich_root_data
669
def get_foreign_tests_repository_factory(self):
670
from .tests.test_repository import (
671
ForeignTestsRepositoryFactory,
673
return ForeignTestsRepositoryFactory()
675
def network_name(self):
679
def get_extra_interrepo_test_combinations():
680
from ..bzr.groupcompress_repo import RepositoryFormat2a
681
from . import interrepo
683
(interrepo.InterLocalGitNonGitRepository,
684
GitRepositoryFormat(), RepositoryFormat2a()),
685
(interrepo.InterLocalGitLocalGitRepository,
686
GitRepositoryFormat(), GitRepositoryFormat()),
687
(interrepo.InterToLocalGitRepository,
688
RepositoryFormat2a(), GitRepositoryFormat()),
added
removed
breezy/git/repository.py
