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# Copyright (C) 2007 Canonical Ltd
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# Copyright (C) 2010 Jelmer Vernooij
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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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# 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 control dir and a Bazaar ControlDir."""
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"""An adapter between a Git control dir and a Bazaar BzrDir."""
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from bzrlib import (
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errors as bzr_errors,
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LockWarner = getattr(lockable_files, "_LockWarner", None)
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from bzrlib.plugins.git import (
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BareLocalGitControlDirFormat,
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LocalGitControlDirFormat,
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from bzrlib.controldir import (
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from bzrlib.bzrdir import (
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class GitLock(object):
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self._lock_warner = LockWarner(repr(self))
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class GitDirConfig(object):
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def get_default_stack_on(self):
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def set_default_stack_on(self, value):
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raise bzr_errors.BzrError("Cannot set configuration")
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class GitDir(ControlDir):
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class GitDir(bzrdir.BzrDir):
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"""An adapter to the '.git' dir used by git."""
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def is_supported(self):
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def can_convert_format(self):
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def break_lock(self):
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def cloning_metadir(self, stacked=False):
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return format_registry.make_bzrdir("default")
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return get_rich_root_format(stacked)
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def _branch_name_to_ref(self, name):
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raise NotImplementedError(self._branch_name_to_ref)
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if bzrlib_version >= (2, 2):
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def open_branch(self, name=None, unsupported=False,
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ignore_fallbacks=None):
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def open_branch(self, name=None, ignore_fallbacks=None,
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return self._open_branch(name=name,
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ignore_fallbacks=ignore_fallbacks, unsupported=unsupported)
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return self._open_branch(name=None,
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ignore_fallbacks=ignore_fallbacks, unsupported=unsupported)
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def get_config(self):
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return GitDirConfig()
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class LocalGitDir(GitDir):
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"""An adapter to the '.git' dir used by git."""
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_gitrepository_class = property(_get_gitrepository_class)
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def user_transport(self):
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return self.root_transport
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def control_transport(self):
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return self.transport
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def __init__(self, transport, lockfiles, gitrepo, format):
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self._format = format
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self.root_transport = transport
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self._mode_check_done = False
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self._git = gitrepo
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self.transport = transport
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def _branch_name_to_ref(self, name):
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from bzrlib.plugins.git.refs import branch_name_to_ref
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ref = branch_name_to_ref(name, None)
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if name in (None, "HEAD"):
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from dulwich.repo import SYMREF
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refcontents = self._git.refs.read_ref(ref)
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refcontents = self._git.refs.read_ref("HEAD")
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if refcontents.startswith(SYMREF):
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ref = refcontents[len(SYMREF):]
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name = refcontents[len(SYMREF):]
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return branch_name_to_ref(name, "HEAD")
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def is_control_filename(self, filename):
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return filename == '.git' or filename.startswith('.git/')
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def get_branch_transport(self, branch_format, name=None):
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def get_branch_transport(self, branch_format, name):
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if branch_format is None:
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return self.transport
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if isinstance(branch_format, LocalGitControlDirFormat):
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if isinstance(branch_format, LocalGitBzrDirFormat):
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return self.transport
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raise bzr_errors.IncompatibleFormat(branch_format, self._format)
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def get_repository_transport(self, format):
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if format is None:
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return self.transport
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if isinstance(format, LocalGitControlDirFormat):
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if isinstance(format, LocalGitBzrDirFormat):
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return self.transport
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raise bzr_errors.IncompatibleFormat(format, self._format)
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def get_workingtree_transport(self, format):
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if format is None:
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return self.transport
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if isinstance(format, LocalGitControlDirFormat):
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if isinstance(format, LocalGitBzrDirFormat):
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return self.transport
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raise bzr_errors.IncompatibleFormat(format, self._format)
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def destroy_branch(self, name=None):
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refname = self._branch_name_to_ref(name)
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if not refname in self._git.refs:
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raise bzr_errors.NotBranchError(self.root_transport.base,
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del self._git.refs[refname]
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def destroy_repository(self):
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raise bzr_errors.UnsupportedOperation(self.destroy_repository, self)
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def destroy_workingtree(self):
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raise bzr_errors.UnsupportedOperation(self.destroy_workingtree, self)
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def needs_format_conversion(self, format=None):
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return not isinstance(self._format, format.__class__)
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del self._git.refs[self._branch_name_to_ref(name)]
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def list_branches(self):
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from bzrlib.plugins.git.workingtree import GitWorkingTree
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branch = self.open_branch()
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except bzr_errors.NotBranchError:
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return GitWorkingTree(self, repo, branch, index)
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return GitWorkingTree(self, repo, self.open_branch(), index)
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loc = urlutils.unescape_for_display(self.root_transport.base, 'ascii')
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raise bzr_errors.NoWorkingTree(loc)
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def create_branch(self, name=None):
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refname = self._branch_name_to_ref(name)
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from dulwich.protocol import ZERO_SHA
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self._git.refs[refname or "HEAD"] = ZERO_SHA
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self._git.refs[refname] = ZERO_SHA
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return self.open_branch(name)
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def backup_bzrdir(self):
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return self.open_workingtree()
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def find_repository(self):
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"""Find the repository that should be used.
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This does not require a branch as we use it to find the repo for
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new branches as well as to hook existing branches up to their
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return self.open_repository()
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def _find_creation_modes(self):
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"""Determine the appropriate modes for files and directories.
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They're always set to be consistent with the base directory,
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assuming that this transport allows setting modes.
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# TODO: Do we need or want an option (maybe a config setting) to turn
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# this off or override it for particular locations? -- mbp 20080512
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if self._mode_check_done:
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self._mode_check_done = True
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st = self.transport.stat('.')
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except TransportNotPossible:
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self._dir_mode = None
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self._file_mode = None
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# Check the directory mode, but also make sure the created
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# directories and files are read-write for this user. This is
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# mostly a workaround for filesystems which lie about being able to
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# write to a directory (cygwin & win32)
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if (st.st_mode & 07777 == 00000):
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# FTP allows stat but does not return dir/file modes
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self._dir_mode = None
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self._file_mode = None
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self._dir_mode = (st.st_mode & 07777) | 00700
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# Remove the sticky and execute bits for files
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self._file_mode = self._dir_mode & ~07111
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def _get_file_mode(self):
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"""Return Unix mode for newly created files, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._file_mode
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def _get_dir_mode(self):
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"""Return Unix mode for newly created directories, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._dir_mode