/brz/remove-bazaar : contents of bzrlib/repofmt/weaverepo.py at revision 2353.3.14

: (revision 2353.3.14)

To get this branch, use:

bzr branch
http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

# Copyright (C) 2005, 2006, 2007 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


"""Old weave-based repository formats"""

from StringIO import StringIO

from bzrlib import (
    bzrdir,
    lockable_files,
    lockdir,
    weave,
    weavefile,
    xml5,
    )
from bzrlib.decorators import needs_read_lock, needs_write_lock
from bzrlib.repository import (
    MetaDirRepository,
    MetaDirRepositoryFormat,
    Repository,
    RepositoryFormat,
    )
from bzrlib.store.text import TextStore
from bzrlib.trace import mutter


class AllInOneRepository(Repository):
    """Legacy support - the repository behaviour for all-in-one branches."""

    _serializer = xml5.serializer_v5

    def __init__(self, _format, a_bzrdir, _revision_store, control_store, text_store):
        # we reuse one control files instance.
        dir_mode = a_bzrdir._control_files._dir_mode
        file_mode = a_bzrdir._control_files._file_mode

        def get_store(name, compressed=True, prefixed=False):
            # FIXME: This approach of assuming stores are all entirely compressed
            # or entirely uncompressed is tidy, but breaks upgrade from 
            # some existing branches where there's a mixture; we probably 
            # still want the option to look for both.
            relpath = a_bzrdir._control_files._escape(name)
            store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
                              prefixed=prefixed, compressed=compressed,
                              dir_mode=dir_mode,
                              file_mode=file_mode)
            #if self._transport.should_cache():
            #    cache_path = os.path.join(self.cache_root, name)
            #    os.mkdir(cache_path)
            #    store = bzrlib.store.CachedStore(store, cache_path)
            return store

        # not broken out yet because the controlweaves|inventory_store
        # and text_store | weave_store bits are still different.
        if isinstance(_format, RepositoryFormat4):
            # cannot remove these - there is still no consistent api 
            # which allows access to this old info.
            self.inventory_store = get_store('inventory-store')
            text_store = get_store('text-store')
        super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, _revision_store, control_store, text_store)

    def get_commit_builder(self, branch, parents, config, timestamp=None,
                           timezone=None, committer=None, revprops=None,
                           revision_id=None):
        self._check_ascii_revisionid(revision_id, self.get_commit_builder)
        return Repository.get_commit_builder(self, branch, parents, config,
            timestamp, timezone, committer, revprops, revision_id)

    @needs_read_lock
    def is_shared(self):
        """AllInOne repositories cannot be shared."""
        return False

    @needs_write_lock
    def set_make_working_trees(self, new_value):
        """Set the policy flag for making working trees when creating branches.

        This only applies to branches that use this repository.

        The default is 'True'.
        :param new_value: True to restore the default, False to disable making
                          working trees.
        """
        raise NotImplementedError(self.set_make_working_trees)
    
    def make_working_trees(self):
        """Returns the policy for making working trees on new branches."""
        return True


class WeaveMetaDirRepository(MetaDirRepository):
    """A subclass of MetaDirRepository to set weave specific policy."""

    _serializer = xml5.serializer_v5

    def get_commit_builder(self, branch, parents, config, timestamp=None,
                           timezone=None, committer=None, revprops=None,
                           revision_id=None):
        self._check_ascii_revisionid(revision_id, self.get_commit_builder)
        return MetaDirRepository.get_commit_builder(self, branch, parents,
            config, timestamp, timezone, committer, revprops, revision_id)


class PreSplitOutRepositoryFormat(RepositoryFormat):
    """Base class for the pre split out repository formats."""

    rich_root_data = False

    def initialize(self, a_bzrdir, shared=False, _internal=False):
        """Create a weave repository.
        
        TODO: when creating split out bzr branch formats, move this to a common
        base for Format5, Format6. or something like that.
        """
        if shared:
            raise errors.IncompatibleFormat(self, a_bzrdir._format)

        if not _internal:
            # always initialized when the bzrdir is.
            return self.open(a_bzrdir, _found=True)
        
        # Create an empty weave
        sio = StringIO()
        weavefile.write_weave_v5(weave.Weave(), sio)
        empty_weave = sio.getvalue()

        mutter('creating repository in %s.', a_bzrdir.transport.base)
        dirs = ['revision-store', 'weaves']
        files = [('inventory.weave', StringIO(empty_weave)),
                 ]
        
        # FIXME: RBC 20060125 don't peek under the covers
        # NB: no need to escape relative paths that are url safe.
        control_files = lockable_files.LockableFiles(a_bzrdir.transport,
                                'branch-lock', lockable_files.TransportLock)
        control_files.create_lock()
        control_files.lock_write()
        control_files._transport.mkdir_multi(dirs,
                mode=control_files._dir_mode)
        try:
            for file, content in files:
                control_files.put(file, content)
        finally:
            control_files.unlock()
        return self.open(a_bzrdir, _found=True)

    def _get_control_store(self, repo_transport, control_files):
        """Return the control store for this repository."""
        return self._get_versioned_file_store('',
                                              repo_transport,
                                              control_files,
                                              prefixed=False)

    def _get_text_store(self, transport, control_files):
        """Get a store for file texts for this format."""
        raise NotImplementedError(self._get_text_store)

    def open(self, a_bzrdir, _found=False):
        """See RepositoryFormat.open()."""
        if not _found:
            # we are being called directly and must probe.
            raise NotImplementedError

        repo_transport = a_bzrdir.get_repository_transport(None)
        control_files = a_bzrdir._control_files
        text_store = self._get_text_store(repo_transport, control_files)
        control_store = self._get_control_store(repo_transport, control_files)
        _revision_store = self._get_revision_store(repo_transport, control_files)
        return AllInOneRepository(_format=self,
                                  a_bzrdir=a_bzrdir,
                                  _revision_store=_revision_store,
                                  control_store=control_store,
                                  text_store=text_store)

    def check_conversion_target(self, target_format):
        pass


class RepositoryFormat4(PreSplitOutRepositoryFormat):
    """Bzr repository format 4.

    This repository format has:
     - flat stores
     - TextStores for texts, inventories,revisions.

    This format is deprecated: it indexes texts using a text id which is
    removed in format 5; initialization and write support for this format
    has been removed.
    """

    _matchingbzrdir = bzrdir.BzrDirFormat4()

    def __init__(self):
        super(RepositoryFormat4, self).__init__()

    def get_format_description(self):
        """See RepositoryFormat.get_format_description()."""
        return "Repository format 4"

    def initialize(self, url, shared=False, _internal=False):
        """Format 4 branches cannot be created."""
        raise errors.UninitializableFormat(self)

    def is_supported(self):
        """Format 4 is not supported.

        It is not supported because the model changed from 4 to 5 and the
        conversion logic is expensive - so doing it on the fly was not 
        feasible.
        """
        return False

    def _get_control_store(self, repo_transport, control_files):
        """Format 4 repositories have no formal control store at this point.
        
        This will cause any control-file-needing apis to fail - this is desired.
        """
        return None
    
    def _get_revision_store(self, repo_transport, control_files):
        """See RepositoryFormat._get_revision_store()."""
        from bzrlib.xml4 import serializer_v4
        return self._get_text_rev_store(repo_transport,
                                        control_files,
                                        'revision-store',
                                        serializer=serializer_v4)

    def _get_text_store(self, transport, control_files):
        """See RepositoryFormat._get_text_store()."""


class RepositoryFormat5(PreSplitOutRepositoryFormat):
    """Bzr control format 5.

    This repository format has:
     - weaves for file texts and inventory
     - flat stores
     - TextStores for revisions and signatures.
    """

    _versionedfile_class = weave.WeaveFile
    _matchingbzrdir = bzrdir.BzrDirFormat5()

    def __init__(self):
        super(RepositoryFormat5, self).__init__()

    def get_format_description(self):
        """See RepositoryFormat.get_format_description()."""
        return "Weave repository format 5"

    def _get_revision_store(self, repo_transport, control_files):
        """See RepositoryFormat._get_revision_store()."""
        """Return the revision store object for this a_bzrdir."""
        return self._get_text_rev_store(repo_transport,
                                        control_files,
                                        'revision-store',
                                        compressed=False)

    def _get_text_store(self, transport, control_files):
        """See RepositoryFormat._get_text_store()."""
        return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)


class RepositoryFormat6(PreSplitOutRepositoryFormat):
    """Bzr control format 6.

    This repository format has:
     - weaves for file texts and inventory
     - hash subdirectory based stores.
     - TextStores for revisions and signatures.
    """

    _versionedfile_class = weave.WeaveFile
    _matchingbzrdir = bzrdir.BzrDirFormat6()

    def __init__(self):
        super(RepositoryFormat6, self).__init__()

    def get_format_description(self):
        """See RepositoryFormat.get_format_description()."""
        return "Weave repository format 6"

    def _get_revision_store(self, repo_transport, control_files):
        """See RepositoryFormat._get_revision_store()."""
        return self._get_text_rev_store(repo_transport,
                                        control_files,
                                        'revision-store',
                                        compressed=False,
                                        prefixed=True)

    def _get_text_store(self, transport, control_files):
        """See RepositoryFormat._get_text_store()."""
        return self._get_versioned_file_store('weaves', transport, control_files)


class RepositoryFormat7(MetaDirRepositoryFormat):
    """Bzr repository 7.

    This repository format has:
     - weaves for file texts and inventory
     - hash subdirectory based stores.
     - TextStores for revisions and signatures.
     - a format marker of its own
     - an optional 'shared-storage' flag
     - an optional 'no-working-trees' flag
    """

    _versionedfile_class = weave.WeaveFile

    def _get_control_store(self, repo_transport, control_files):
        """Return the control store for this repository."""
        return self._get_versioned_file_store('',
                                              repo_transport,
                                              control_files,
                                              prefixed=False)

    def get_format_string(self):
        """See RepositoryFormat.get_format_string()."""
        return "Bazaar-NG Repository format 7"

    def get_format_description(self):
        """See RepositoryFormat.get_format_description()."""
        return "Weave repository format 7"

    def check_conversion_target(self, target_format):
        pass

    def _get_revision_store(self, repo_transport, control_files):
        """See RepositoryFormat._get_revision_store()."""
        return self._get_text_rev_store(repo_transport,
                                        control_files,
                                        'revision-store',
                                        compressed=False,
                                        prefixed=True,
                                        )

    def _get_text_store(self, transport, control_files):
        """See RepositoryFormat._get_text_store()."""
        return self._get_versioned_file_store('weaves',
                                              transport,
                                              control_files)

    def initialize(self, a_bzrdir, shared=False):
        """Create a weave repository.

        :param shared: If true the repository will be initialized as a shared
                       repository.
        """
        # Create an empty weave
        sio = StringIO()
        weavefile.write_weave_v5(weave.Weave(), sio)
        empty_weave = sio.getvalue()

        mutter('creating repository in %s.', a_bzrdir.transport.base)
        dirs = ['revision-store', 'weaves']
        files = [('inventory.weave', StringIO(empty_weave)), 
                 ]
        utf8_files = [('format', self.get_format_string())]
 
        self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
        return self.open(a_bzrdir=a_bzrdir, _found=True)

    def open(self, a_bzrdir, _found=False, _override_transport=None):
        """See RepositoryFormat.open().
        
        :param _override_transport: INTERNAL USE ONLY. Allows opening the
                                    repository at a slightly different url
                                    than normal. I.e. during 'upgrade'.
        """
        if not _found:
            format = RepositoryFormat.find_format(a_bzrdir)
            assert format.__class__ ==  self.__class__
        if _override_transport is not None:
            repo_transport = _override_transport
        else:
            repo_transport = a_bzrdir.get_repository_transport(None)
        control_files = lockable_files.LockableFiles(repo_transport,
                                'lock', lockdir.LockDir)
        text_store = self._get_text_store(repo_transport, control_files)
        control_store = self._get_control_store(repo_transport, control_files)
        _revision_store = self._get_revision_store(repo_transport, control_files)
        return WeaveMetaDirRepository(_format=self,
            a_bzrdir=a_bzrdir,
            control_files=control_files,
            _revision_store=_revision_store,
            control_store=control_store,
            text_store=text_store)


_legacy_formats = [RepositoryFormat4(),
                   RepositoryFormat5(),
                   RepositoryFormat6()]

2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	1	# Copyright (C) 2005, 2006, 2007 Canonical Ltd
	2	#
	3	# This program is free software; you can redistribute it and/or modify
	4	# it under the terms of the GNU General Public License as published by
	5	# the Free Software Foundation; either version 2 of the License, or
	6	# (at your option) any later version.
	7	#
	8	# This program is distributed in the hope that it will be useful,
	9	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	# GNU General Public License for more details.
	12	#
	13	# You should have received a copy of the GNU General Public License
	14	# along with this program; if not, write to the Free Software
	15	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	16
	17
2241.1.15 by Martin Pool doc	18	"""Old weave-based repository formats"""
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	19
	20	from StringIO import StringIO
	21
	22	from bzrlib import (
	23	bzrdir,
	24	lockable_files,
	25	lockdir,
	26	weave,
	27	weavefile,
2241.1.8 by Martin Pool Set the repository's serializer in the places it's needed, not in the base class	28	xml5,
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	29	)
	30	from bzrlib.decorators import needs_read_lock, needs_write_lock
	31	from bzrlib.repository import (
	32	MetaDirRepository,
	33	MetaDirRepositoryFormat,
	34	Repository,
	35	RepositoryFormat,
	36	)
	37	from bzrlib.store.text import TextStore
	38	from bzrlib.trace import mutter
	39
	40
	41	class AllInOneRepository(Repository):
	42	"""Legacy support - the repository behaviour for all-in-one branches."""
	43
2241.1.8 by Martin Pool Set the repository's serializer in the places it's needed, not in the base class	44	_serializer = xml5.serializer_v5
	45
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	46	def __init__(self, _format, a_bzrdir, _revision_store, control_store, text_store):
	47	# we reuse one control files instance.
	48	dir_mode = a_bzrdir._control_files._dir_mode
	49	file_mode = a_bzrdir._control_files._file_mode
	50
	51	def get_store(name, compressed=True, prefixed=False):
	52	# FIXME: This approach of assuming stores are all entirely compressed
	53	# or entirely uncompressed is tidy, but breaks upgrade from
	54	# some existing branches where there's a mixture; we probably
	55	# still want the option to look for both.
	56	relpath = a_bzrdir._control_files._escape(name)
	57	store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
	58	prefixed=prefixed, compressed=compressed,
	59	dir_mode=dir_mode,
	60	file_mode=file_mode)
	61	#if self._transport.should_cache():
	62	# cache_path = os.path.join(self.cache_root, name)
	63	# os.mkdir(cache_path)
	64	# store = bzrlib.store.CachedStore(store, cache_path)
	65	return store
	66
	67	# not broken out yet because the controlweaves\|inventory_store
	68	# and text_store \| weave_store bits are still different.
	69	if isinstance(_format, RepositoryFormat4):
	70	# cannot remove these - there is still no consistent api
	71	# which allows access to this old info.
	72	self.inventory_store = get_store('inventory-store')
	73	text_store = get_store('text-store')
	74	super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, _revision_store, control_store, text_store)
	75
	76	def get_commit_builder(self, branch, parents, config, timestamp=None,
	77	timezone=None, committer=None, revprops=None,
	78	revision_id=None):
	79	self._check_ascii_revisionid(revision_id, self.get_commit_builder)
	80	return Repository.get_commit_builder(self, branch, parents, config,
	81	timestamp, timezone, committer, revprops, revision_id)
	82
	83	@needs_read_lock
	84	def is_shared(self):
	85	"""AllInOne repositories cannot be shared."""
	86	return False
	87
	88	@needs_write_lock
	89	def set_make_working_trees(self, new_value):
	90	"""Set the policy flag for making working trees when creating branches.
	91
	92	This only applies to branches that use this repository.
	93
	94	The default is 'True'.
	95	:param new_value: True to restore the default, False to disable making
	96	working trees.
	97	"""
	98	raise NotImplementedError(self.set_make_working_trees)
	99
	100	def make_working_trees(self):
	101	"""Returns the policy for making working trees on new branches."""
	102	return True
	103
	104
	105	class WeaveMetaDirRepository(MetaDirRepository):
	106	"""A subclass of MetaDirRepository to set weave specific policy."""
	107
2241.1.8 by Martin Pool Set the repository's serializer in the places it's needed, not in the base class	108	_serializer = xml5.serializer_v5
	109
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	110	def get_commit_builder(self, branch, parents, config, timestamp=None,
	111	timezone=None, committer=None, revprops=None,
	112	revision_id=None):
	113	self._check_ascii_revisionid(revision_id, self.get_commit_builder)
	114	return MetaDirRepository.get_commit_builder(self, branch, parents,
	115	config, timestamp, timezone, committer, revprops, revision_id)
	116
	117
	118	class PreSplitOutRepositoryFormat(RepositoryFormat):
	119	"""Base class for the pre split out repository formats."""
	120
	121	rich_root_data = False
	122
	123	def initialize(self, a_bzrdir, shared=False, _internal=False):
	124	"""Create a weave repository.
	125
	126	TODO: when creating split out bzr branch formats, move this to a common
	127	base for Format5, Format6. or something like that.
	128	"""
	129	if shared:
	130	raise errors.IncompatibleFormat(self, a_bzrdir._format)
	131
	132	if not _internal:
	133	# always initialized when the bzrdir is.
	134	return self.open(a_bzrdir, _found=True)
	135
	136	# Create an empty weave
	137	sio = StringIO()
	138	weavefile.write_weave_v5(weave.Weave(), sio)
	139	empty_weave = sio.getvalue()
	140
	141	mutter('creating repository in %s.', a_bzrdir.transport.base)
	142	dirs = ['revision-store', 'weaves']
	143	files = [('inventory.weave', StringIO(empty_weave)),
	144	]
	145
	146	# FIXME: RBC 20060125 don't peek under the covers
	147	# NB: no need to escape relative paths that are url safe.
	148	control_files = lockable_files.LockableFiles(a_bzrdir.transport,
	149	'branch-lock', lockable_files.TransportLock)
	150	control_files.create_lock()
	151	control_files.lock_write()
	152	control_files._transport.mkdir_multi(dirs,
	153	mode=control_files._dir_mode)
	154	try:
	155	for file, content in files:
	156	control_files.put(file, content)
	157	finally:
	158	control_files.unlock()
	159	return self.open(a_bzrdir, _found=True)
	160
	161	def _get_control_store(self, repo_transport, control_files):
	162	"""Return the control store for this repository."""
	163	return self._get_versioned_file_store('',
	164	repo_transport,
	165	control_files,
	166	prefixed=False)
	167
	168	def _get_text_store(self, transport, control_files):
	169	"""Get a store for file texts for this format."""
	170	raise NotImplementedError(self._get_text_store)
	171
	172	def open(self, a_bzrdir, _found=False):
	173	"""See RepositoryFormat.open()."""
174	if not _found:
175	# we are being called directly and must probe.
176	raise NotImplementedError
177
178	repo_transport = a_bzrdir.get_repository_transport(None)
179	control_files = a_bzrdir._control_files
180	text_store = self._get_text_store(repo_transport, control_files)
181	control_store = self._get_control_store(repo_transport, control_files)
182	_revision_store = self._get_revision_store(repo_transport, control_files)
183	return AllInOneRepository(_format=self,
184	a_bzrdir=a_bzrdir,
185	_revision_store=_revision_store,
186	control_store=control_store,
187	text_store=text_store)
188
189	def check_conversion_target(self, target_format):
190	pass
191
192
193	class RepositoryFormat4(PreSplitOutRepositoryFormat):
194	"""Bzr repository format 4.
195
196	This repository format has:
197	- flat stores
198	- TextStores for texts, inventories,revisions.
199
200	This format is deprecated: it indexes texts using a text id which is
201	removed in format 5; initialization and write support for this format
202	has been removed.
203	"""
204
2241.1.11 by Martin Pool Get rid of RepositoryFormat*_instance objects. Instead the format	205	_matchingbzrdir = bzrdir.BzrDirFormat4()
	206
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	207	def __init__(self):
	208	super(RepositoryFormat4, self).__init__()
	209
	210	def get_format_description(self):
	211	"""See RepositoryFormat.get_format_description()."""
	212	return "Repository format 4"
	213
	214	def initialize(self, url, shared=False, _internal=False):
	215	"""Format 4 branches cannot be created."""
	216	raise errors.UninitializableFormat(self)
	217
	218	def is_supported(self):
	219	"""Format 4 is not supported.
	220
	221	It is not supported because the model changed from 4 to 5 and the
	222	conversion logic is expensive - so doing it on the fly was not
	223	feasible.
	224	"""
	225	return False
	226
	227	def _get_control_store(self, repo_transport, control_files):
	228	"""Format 4 repositories have no formal control store at this point.
	229
	230	This will cause any control-file-needing apis to fail - this is desired.
	231	"""
	232	return None
	233
	234	def _get_revision_store(self, repo_transport, control_files):
	235	"""See RepositoryFormat._get_revision_store()."""
	236	from bzrlib.xml4 import serializer_v4
	237	return self._get_text_rev_store(repo_transport,
	238	control_files,
	239	'revision-store',
	240	serializer=serializer_v4)
	241
	242	def _get_text_store(self, transport, control_files):
	243	"""See RepositoryFormat._get_text_store()."""
	244
	245
	246	class RepositoryFormat5(PreSplitOutRepositoryFormat):
	247	"""Bzr control format 5.
	248
	249	This repository format has:
	250	- weaves for file texts and inventory
	251	- flat stores
	252	- TextStores for revisions and signatures.
	253	"""
	254
2241.1.10 by Martin Pool Remove more references to weaves from the repository.py file	255	_versionedfile_class = weave.WeaveFile
2241.1.11 by Martin Pool Get rid of RepositoryFormat*_instance objects. Instead the format	256	_matchingbzrdir = bzrdir.BzrDirFormat5()
2241.1.10 by Martin Pool Remove more references to weaves from the repository.py file	257
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	258	def __init__(self):
	259	super(RepositoryFormat5, self).__init__()
	260
	261	def get_format_description(self):
	262	"""See RepositoryFormat.get_format_description()."""
	263	return "Weave repository format 5"
	264
	265	def _get_revision_store(self, repo_transport, control_files):
	266	"""See RepositoryFormat._get_revision_store()."""
	267	"""Return the revision store object for this a_bzrdir."""
	268	return self._get_text_rev_store(repo_transport,
	269	control_files,
	270	'revision-store',
	271	compressed=False)
	272
	273	def _get_text_store(self, transport, control_files):
	274	"""See RepositoryFormat._get_text_store()."""
	275	return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
	276
	277
	278	class RepositoryFormat6(PreSplitOutRepositoryFormat):
	279	"""Bzr control format 6.
	280
	281	This repository format has:
	282	- weaves for file texts and inventory
	283	- hash subdirectory based stores.
	284	- TextStores for revisions and signatures.
	285	"""
	286
2241.1.10 by Martin Pool Remove more references to weaves from the repository.py file	287	_versionedfile_class = weave.WeaveFile
2241.1.11 by Martin Pool Get rid of RepositoryFormat*_instance objects. Instead the format	288	_matchingbzrdir = bzrdir.BzrDirFormat6()
2241.1.10 by Martin Pool Remove more references to weaves from the repository.py file	289
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	290	def __init__(self):
	291	super(RepositoryFormat6, self).__init__()
	292
	293	def get_format_description(self):
	294	"""See RepositoryFormat.get_format_description()."""
	295	return "Weave repository format 6"
	296
	297	def _get_revision_store(self, repo_transport, control_files):
	298	"""See RepositoryFormat._get_revision_store()."""
	299	return self._get_text_rev_store(repo_transport,
	300	control_files,
	301	'revision-store',
	302	compressed=False,
	303	prefixed=True)
	304
	305	def _get_text_store(self, transport, control_files):
	306	"""See RepositoryFormat._get_text_store()."""
	307	return self._get_versioned_file_store('weaves', transport, control_files)
	308
	309
	310	class RepositoryFormat7(MetaDirRepositoryFormat):
	311	"""Bzr repository 7.
	312
	313	This repository format has:
	314	- weaves for file texts and inventory
	315	- hash subdirectory based stores.
	316	- TextStores for revisions and signatures.
	317	- a format marker of its own
	318	- an optional 'shared-storage' flag
	319	- an optional 'no-working-trees' flag
	320	"""
	321
2241.1.10 by Martin Pool Remove more references to weaves from the repository.py file	322	_versionedfile_class = weave.WeaveFile
	323
2241.1.4 by Martin Pool Moved old weave-based repository formats into bzrlib.repofmt.weaverepo.	324	def _get_control_store(self, repo_transport, control_files):
	325	"""Return the control store for this repository."""
	326	return self._get_versioned_file_store('',
	327	repo_transport,
	328	control_files,
	329	prefixed=False)
	330
	331	def get_format_string(self):
	332	"""See RepositoryFormat.get_format_string()."""
	333	return "Bazaar-NG Repository format 7"
	334
	335	def get_format_description(self):
	336	"""See RepositoryFormat.get_format_description()."""
	337	return "Weave repository format 7"
	338
	339	def check_conversion_target(self, target_format):
	340	pass
	341
	342	def _get_revision_store(self, repo_transport, control_files):
	343	"""See RepositoryFormat._get_revision_store()."""
	344	return self._get_text_rev_store(repo_transport,
	345	control_files,
	346	'revision-store',
	347	compressed=False,
	348	prefixed=True,
	349	)
	350
	351	def _get_text_store(self, transport, control_files):
	352	"""See RepositoryFormat._get_text_store()."""
	353	return self._get_versioned_file_store('weaves',
	354	transport,
	355	control_files)
	356
	357	def initialize(self, a_bzrdir, shared=False):
	358	"""Create a weave repository.
	359
	360	:param shared: If true the repository will be initialized as a shared
	361	repository.
	362	"""
	363	# Create an empty weave
	364	sio = StringIO()
	365	weavefile.write_weave_v5(weave.Weave(), sio)
	366	empty_weave = sio.getvalue()
	367
	368	mutter('creating repository in %s.', a_bzrdir.transport.base)
	369	dirs = ['revision-store', 'weaves']
	370	files = [('inventory.weave', StringIO(empty_weave)),
	371	]
	372	utf8_files = [('format', self.get_format_string())]
	373
	374	self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
	375	return self.open(a_bzrdir=a_bzrdir, _found=True)
	376
	377	def open(self, a_bzrdir, _found=False, _override_transport=None):
	378	"""See RepositoryFormat.open().
	379
	380	:param _override_transport: INTERNAL USE ONLY. Allows opening the
	381	repository at a slightly different url
	382	than normal. I.e. during 'upgrade'.
	383	"""
	384	if not _found:
	385	format = RepositoryFormat.find_format(a_bzrdir)
	386	assert format.__class__ == self.__class__
	387	if _override_transport is not None:
388	repo_transport = _override_transport
389	else:
390	repo_transport = a_bzrdir.get_repository_transport(None)
391	control_files = lockable_files.LockableFiles(repo_transport,
392	'lock', lockdir.LockDir)
393	text_store = self._get_text_store(repo_transport, control_files)
394	control_store = self._get_control_store(repo_transport, control_files)
395	_revision_store = self._get_revision_store(repo_transport, control_files)
396	return WeaveMetaDirRepository(_format=self,
397	a_bzrdir=a_bzrdir,
398	control_files=control_files,
399	_revision_store=_revision_store,
400	control_store=control_store,
401	text_store=text_store)
402
403
404	_legacy_formats = [RepositoryFormat4(),
405	RepositoryFormat5(),
406	RepositoryFormat6()]