/brz/remove-bazaar : contents of breezy/memorytree.py at revision 6885

: (revision 6885)

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# Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""MemoryTree object.

See MemoryTree for more details.
"""

from __future__ import absolute_import

import os

from . import (
    errors,
    lock,
    revision as _mod_revision,
    )
from .bzr.inventory import Inventory
from .bzr.inventorytree import MutableInventoryTree
from .osutils import sha_file
from .transport.memory import MemoryTransport


class MemoryTree(MutableInventoryTree):
    """A MemoryTree is a specialisation of MutableTree.

    It maintains nearly no state outside of read_lock and write_lock
    transactions. (it keeps a reference to the branch, and its last-revision
    only).
    """

    def __init__(self, branch, revision_id):
        """Construct a MemoryTree for branch using revision_id."""
        self.branch = branch
        self.controldir = branch.controldir
        self._branch_revision_id = revision_id
        self._locks = 0
        self._lock_mode = None

    def get_config_stack(self):
        return self.branch.get_config_stack()

    def is_control_filename(self, filename):
        # Memory tree doesn't have any control filenames
        return False

    def _add(self, files, ids, kinds):
        """See MutableTree._add."""
        with self.lock_tree_write():
            for f, file_id, kind in zip(files, ids, kinds):
                if kind is None:
                    kind = 'file'
                if file_id is None:
                    self._inventory.add_path(f, kind=kind)
                else:
                    self._inventory.add_path(f, kind=kind, file_id=file_id)

    def basis_tree(self):
        """See Tree.basis_tree()."""
        return self._basis_tree

    @staticmethod
    def create_on_branch(branch):
        """Create a MemoryTree for branch, using the last-revision of branch."""
        revision_id = _mod_revision.ensure_null(branch.last_revision())
        return MemoryTree(branch, revision_id)

    def _gather_kinds(self, files, kinds):
        """See MutableTree._gather_kinds.

        This implementation does not care about the file kind of
        missing files, so is a no-op.
        """

    def get_file(self, path, file_id=None):
        """See Tree.get_file."""
        return self._file_transport.get(path)

    def get_file_sha1(self, path, file_id=None, stat_value=None):
        """See Tree.get_file_sha1()."""
        stream = self._file_transport.get(path)
        return sha_file(stream)

    def get_root_id(self):
        return self.path2id('')

    def _comparison_data(self, entry, path):
        """See Tree._comparison_data."""
        if entry is None:
            return None, False, None
        return entry.kind, entry.executable, None

    def rename_one(self, from_rel, to_rel):
        with self.lock_tree_write():
            file_id = self.path2id(from_rel)
            to_dir, to_tail = os.path.split(to_rel)
            to_parent_id = self.path2id(to_dir)
            self._file_transport.move(from_rel, to_rel)
            self._inventory.rename(file_id, to_parent_id, to_tail)

    def path_content_summary(self, path):
        """See Tree.path_content_summary."""
        id = self.path2id(path)
        if id is None:
            return 'missing', None, None, None
        kind = self.kind(path, id)
        if kind == 'file':
            bytes = self._file_transport.get_bytes(path)
            size = len(bytes)
            executable = self._inventory[id].executable
            sha1 = None # no stat cache
            return (kind, size, executable, sha1)
        elif kind == 'directory':
            # memory tree does not support nested trees yet.
            return kind, None, None, None
        elif kind == 'symlink':
            raise NotImplementedError('symlink support')
        else:
            raise NotImplementedError('unknown kind')

    def _file_size(self, entry, stat_value):
        """See Tree._file_size."""
        if entry is None:
            return 0
        return entry.text_size

    def get_parent_ids(self):
        """See Tree.get_parent_ids.

        This implementation returns the current cached value from
            self._parent_ids.
        """
        with self.lock_read():
            return list(self._parent_ids)

    def has_filename(self, filename):
        """See Tree.has_filename()."""
        return self._file_transport.has(filename)

    def is_executable(self, path, file_id=None):
        return self._inventory[file_id].executable

    def kind(self, path, file_id=None):
        if file_id is None:
            file_id = self.path2id(path)
        return self._inventory[file_id].kind

    def mkdir(self, path, file_id=None):
        """See MutableTree.mkdir()."""
        self.add(path, file_id, 'directory')
        if file_id is None:
            file_id = self.path2id(path)
        self._file_transport.mkdir(path)
        return file_id

    def last_revision(self):
        """See MutableTree.last_revision."""
        with self.lock_read():
            return self._branch_revision_id

    def lock_read(self):
        """Lock the memory tree for reading.

        This triggers population of data from the branch for its revision.
        """
        self._locks += 1
        try:
            if self._locks == 1:
                self.branch.lock_read()
                self._lock_mode = "r"
                self._populate_from_branch()
            return lock.LogicalLockResult(self.unlock)
        except:
            self._locks -= 1
            raise

    def lock_tree_write(self):
        """See MutableTree.lock_tree_write()."""
        self._locks += 1
        try:
            if self._locks == 1:
                self.branch.lock_read()
                self._lock_mode = "w"
                self._populate_from_branch()
            elif self._lock_mode == "r":
                raise errors.ReadOnlyError(self)
        except:
            self._locks -= 1
            raise
        return lock.LogicalLockResult(self.unlock)

    def lock_write(self):
        """See MutableTree.lock_write()."""
        self._locks += 1
        try:
            if self._locks == 1:
                self.branch.lock_write()
                self._lock_mode = "w"
                self._populate_from_branch()
            elif self._lock_mode == "r":
                raise errors.ReadOnlyError(self)
            return lock.LogicalLockResult(self.unlock)
        except:
            self._locks -= 1
            raise

    def _populate_from_branch(self):
        """Populate the in-tree state from the branch."""
        self._set_basis()
        if self._branch_revision_id == _mod_revision.NULL_REVISION:
            self._parent_ids = []
        else:
            self._parent_ids = [self._branch_revision_id]
        self._inventory = Inventory(None, self._basis_tree.get_revision_id())
        self._file_transport = MemoryTransport()
        # TODO copy the revision trees content, or do it lazy, or something.
        inventory_entries = self._basis_tree.iter_entries_by_dir()
        for path, entry in inventory_entries:
            self._inventory.add(entry.copy())
            if path == '':
                continue
            if entry.kind == 'directory':
                self._file_transport.mkdir(path)
            elif entry.kind == 'file':
                self._file_transport.put_file(path,
                    self._basis_tree.get_file(path, entry.file_id))
            else:
                raise NotImplementedError(self._populate_from_branch)

    def put_file_bytes_non_atomic(self, path, bytes, file_id=None):
        """See MutableTree.put_file_bytes_non_atomic."""
        self._file_transport.put_bytes(path, bytes)

    def unlock(self):
        """Release a lock.

        This frees all cached state when the last lock context for the tree is
        left.
        """
        if self._locks == 1:
            self._basis_tree = None
            self._parent_ids = []
            self._inventory = None
            try:
                self.branch.unlock()
            finally:
                self._locks = 0
                self._lock_mode = None
        else:
            self._locks -= 1

    def unversion(self, paths, file_ids=None):
        """Remove the paths from the current versioned set.

        When a file_id is unversioned, all of its children are automatically
        unversioned.

        :param paths: The paths to stop versioning.
        :raises: NoSuchId if any fileid is not currently versioned.
        """
        with self.lock_tree_write():
            # XXX: This should be in mutabletree, but the inventory-save action
            # is not relevant to memory tree. Until that is done in unlock by
            # working tree, we cannot share the implementation.
            if file_ids is None:
                file_ids = {self.path2id(path) for path in paths}
            for file_id in file_ids:
                if self._inventory.has_id(file_id):
                    self._inventory.remove_recursive_id(file_id)
                else:
                    raise errors.NoSuchId(self, file_id)

    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
        """See MutableTree.set_parent_trees()."""
        for revision_id in revision_ids:
            _mod_revision.check_not_reserved_id(revision_id)
        if len(revision_ids) == 0:
            self._parent_ids = []
            self._branch_revision_id = _mod_revision.NULL_REVISION
        else:
            self._parent_ids = revision_ids
            self._branch_revision_id = revision_ids[0]
        self._allow_leftmost_as_ghost = allow_leftmost_as_ghost
        self._set_basis()

    def _set_basis(self):
        try:
            self._basis_tree = self.branch.repository.revision_tree(
                self._branch_revision_id)
        except errors.NoSuchRevision:
            if self._allow_leftmost_as_ghost:
                self._basis_tree = self.branch.repository.revision_tree(
                    _mod_revision.NULL_REVISION)
            else:
                raise

    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
        """See MutableTree.set_parent_trees()."""
        if len(parents_list) == 0:
            self._parent_ids = []
            self._basis_tree = self.branch.repository.revision_tree(
                                   _mod_revision.NULL_REVISION)
        else:
            if parents_list[0][1] is None and not allow_leftmost_as_ghost:
                # a ghost in the left most parent
                raise errors.GhostRevisionUnusableHere(parents_list[0][0])
            self._parent_ids = [parent_id for parent_id, tree in parents_list]
            if parents_list[0][1] is None or parents_list[0][1] == 'null:':
                self._basis_tree = self.branch.repository.revision_tree(
                                       _mod_revision.NULL_REVISION)
            else:
                self._basis_tree = parents_list[0][1]
            self._branch_revision_id = parents_list[0][0]

1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	1	# Copyright (C) 2006 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
4183.7.1 by Sabin Iacob update FSF mailing address	15	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	16
	17	"""MemoryTree object.
	18
	19	See MemoryTree for more details.
	20	"""
	21
6379.6.7 by Jelmer Vernooij Move importing from future until after doc string, otherwise the doc string will disappear.	22	from __future__ import absolute_import
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	23
3567.5.1 by John Arbash Meinel Implement rename_one on MemoryTree, and expose that in the Branch Builder	24	import os
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	25
6624 by Jelmer Vernooĳ Merge Python3 porting work ('py3 pokes')	26	from . import (
2598.5.1 by Aaron Bentley Start eliminating the use of None to indicate null revision	27	errors,
6754.8.3 by Jelmer Vernooĳ Use context manager in decorators.	28	lock,
2598.5.1 by Aaron Bentley Start eliminating the use of None to indicate null revision	29	revision as _mod_revision,
	30	)
6670.4.1 by Jelmer Vernooij Update imports.	31	from .bzr.inventory import Inventory
6670.4.12 by Jelmer Vernooĳ Move inventorytree to breezy.bzr.	32	from .bzr.inventorytree import MutableInventoryTree
6624 by Jelmer Vernooĳ Merge Python3 porting work ('py3 pokes')	33	from .osutils import sha_file
	34	from .transport.memory import MemoryTransport
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	35
	36
6672.2.2 by Jelmer Vernooij Fix imports.	37	class MemoryTree(MutableInventoryTree):
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	38	"""A MemoryTree is a specialisation of MutableTree.
3943.8.1 by Marius Kruger remove all trailing whitespace from bzr source	39
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	40	It maintains nearly no state outside of read_lock and write_lock
	41	transactions. (it keeps a reference to the branch, and its last-revision
	42	only).
	43	"""
	44
	45	def __init__(self, branch, revision_id):
	46	"""Construct a MemoryTree for branch using revision_id."""
	47	self.branch = branch
6653.6.1 by Jelmer Vernooĳ Rename a number of attributes from bzrdir to controldir.	48	self.controldir = branch.controldir
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	49	self._branch_revision_id = revision_id
	50	self._locks = 0
	51	self._lock_mode = None
	52
6449.6.7 by Jelmer Vernooij Fix tests.	53	def get_config_stack(self):
	54	return self.branch.get_config_stack()
	55
5699.2.1 by Jelmer Vernooij Move is_control_filename() from Tree to MutableTree.	56	def is_control_filename(self, filename):
	57	# Memory tree doesn't have any control filenames
	58	return False
	59
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	60	def _add(self, files, ids, kinds):
	61	"""See MutableTree._add."""
6754.8.18 by Jelmer Vernooĳ Get rid of lock_tree_write.	62	with self.lock_tree_write():
	63	for f, file_id, kind in zip(files, ids, kinds):
	64	if kind is None:
	65	kind = 'file'
	66	if file_id is None:
	67	self._inventory.add_path(f, kind=kind)
	68	else:
	69	self._inventory.add_path(f, kind=kind, file_id=file_id)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	70
	71	def basis_tree(self):
	72	"""See Tree.basis_tree()."""
	73	return self._basis_tree
	74
	75	@staticmethod
	76	def create_on_branch(branch):
	77	"""Create a MemoryTree for branch, using the last-revision of branch."""
2598.5.4 by Aaron Bentley Restore original Branch.last_revision behavior, fix bits that care	78	revision_id = _mod_revision.ensure_null(branch.last_revision())
2598.5.1 by Aaron Bentley Start eliminating the use of None to indicate null revision	79	return MemoryTree(branch, revision_id)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	80
	81	def _gather_kinds(self, files, kinds):
	82	"""See MutableTree._gather_kinds.
3943.8.1 by Marius Kruger remove all trailing whitespace from bzr source	83
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	84	This implementation does not care about the file kind of
	85	missing files, so is a no-op.
	86	"""
	87
6809.4.5 by Jelmer Vernooĳ Swap arguments for get_file_*.	88	def get_file(self, path, file_id=None):
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	89	"""See Tree.get_file."""
2743.3.3 by Ian Clatworthy Skip path lookup for tree.get_file() when we already know the path	90	return self._file_transport.get(path)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	91
6809.4.5 by Jelmer Vernooĳ Swap arguments for get_file_*.	92	def get_file_sha1(self, path, file_id=None, stat_value=None):
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	93	"""See Tree.get_file_sha1()."""
	94	stream = self._file_transport.get(path)
	95	return sha_file(stream)
	96
2946.3.5 by John Arbash Meinel MemoryTree is not tested under the tree_implementations tests.	97	def get_root_id(self):
	98	return self.path2id('')
	99
2564.2.1 by Ian Clatworthy refactor commit to support alternative population meothds	100	def _comparison_data(self, entry, path):
	101	"""See Tree._comparison_data."""
	102	if entry is None:
	103	return None, False, None
	104	return entry.kind, entry.executable, None
	105
3567.5.1 by John Arbash Meinel Implement rename_one on MemoryTree, and expose that in the Branch Builder	106	def rename_one(self, from_rel, to_rel):
6754.8.18 by Jelmer Vernooĳ Get rid of lock_tree_write.	107	with self.lock_tree_write():
	108	file_id = self.path2id(from_rel)
	109	to_dir, to_tail = os.path.split(to_rel)
	110	to_parent_id = self.path2id(to_dir)
	111	self._file_transport.move(from_rel, to_rel)
	112	self._inventory.rename(file_id, to_parent_id, to_tail)
3514.4.38 by John Arbash Meinel Use direct access to the inventory instead of path2id.	113
2776.4.2 by Robert Collins nuke _read_tree_state and snapshot from inventory, moving responsibility into the commit builder.	114	def path_content_summary(self, path):
	115	"""See Tree.path_content_summary."""
	116	id = self.path2id(path)
	117	if id is None:
	118	return 'missing', None, None, None
6809.4.7 by Jelmer Vernooĳ Swap arguments for get_symlink_target and kind/stored_kind.	119	kind = self.kind(path, id)
2776.4.2 by Robert Collins nuke _read_tree_state and snapshot from inventory, moving responsibility into the commit builder.	120	if kind == 'file':
	121	bytes = self._file_transport.get_bytes(path)
	122	size = len(bytes)
	123	executable = self._inventory[id].executable
	124	sha1 = None # no stat cache
	125	return (kind, size, executable, sha1)
	126	elif kind == 'directory':
	127	# memory tree does not support nested trees yet.
	128	return kind, None, None, None
	129	elif kind == 'symlink':
	130	raise NotImplementedError('symlink support')
	131	else:
	132	raise NotImplementedError('unknown kind')
	133
2564.2.1 by Ian Clatworthy refactor commit to support alternative population meothds	134	def _file_size(self, entry, stat_value):
	135	"""See Tree._file_size."""
	136	if entry is None:
	137	return 0
	138	return entry.text_size
	139
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	140	def get_parent_ids(self):
	141	"""See Tree.get_parent_ids.
	142
	143	This implementation returns the current cached value from
	144	self._parent_ids.
	145	"""
6754.8.16 by Jelmer Vernooĳ Get rid of all uses of needs_read_lock	146	with self.lock_read():
	147	return list(self._parent_ids)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	148
	149	def has_filename(self, filename):
	150	"""See Tree.has_filename()."""
	151	return self._file_transport.has(filename)
	152
6809.4.4 by Jelmer Vernooĳ Swap arguments for Tree.is_executable.	153	def is_executable(self, path, file_id=None):
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	154	return self._inventory[file_id].executable
	155
6809.4.7 by Jelmer Vernooĳ Swap arguments for get_symlink_target and kind/stored_kind.	156	def kind(self, path, file_id=None):
	157	if file_id is None:
	158	file_id = self.path2id(path)
1959.4.2 by Aaron Bentley Merge bzr.dev	159	return self._inventory[file_id].kind
1959.4.2 by Aaron Bentley Merge bzr.dev	160
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	161	def mkdir(self, path, file_id=None):
	162	"""See MutableTree.mkdir()."""
	163	self.add(path, file_id, 'directory')
	164	if file_id is None:
	165	file_id = self.path2id(path)
	166	self._file_transport.mkdir(path)
	167	return file_id
	168
1986.1.6 by Robert Collins Add MemoryTree.last_revision.	169	def last_revision(self):
1986.1.6 by Robert Collins Add MemoryTree.last_revision.	170	"""See MutableTree.last_revision."""
6754.8.16 by Jelmer Vernooĳ Get rid of all uses of needs_read_lock	171	with self.lock_read():
	172	return self._branch_revision_id
1986.1.6 by Robert Collins Add MemoryTree.last_revision.	173
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	174	def lock_read(self):
	175	"""Lock the memory tree for reading.
	176
	177	This triggers population of data from the branch for its revision.
	178	"""
	179	self._locks += 1
	180	try:
	181	if self._locks == 1:
	182	self.branch.lock_read()
	183	self._lock_mode = "r"
	184	self._populate_from_branch()
6754.8.3 by Jelmer Vernooĳ Use context manager in decorators.	185	return lock.LogicalLockResult(self.unlock)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	186	except:
	187	self._locks -= 1
	188	raise
	189
1986.1.8 by Robert Collins Update to bzr.dev, which involves adding lock_tree_write to MutableTree and MemoryTree.	190	def lock_tree_write(self):
	191	"""See MutableTree.lock_tree_write()."""
	192	self._locks += 1
	193	try:
	194	if self._locks == 1:
	195	self.branch.lock_read()
	196	self._lock_mode = "w"
	197	self._populate_from_branch()
	198	elif self._lock_mode == "r":
	199	raise errors.ReadOnlyError(self)
	200	except:
	201	self._locks -= 1
	202	raise
6754.8.9 by Jelmer Vernooĳ Fix more tests.	203	return lock.LogicalLockResult(self.unlock)
1986.1.8 by Robert Collins Update to bzr.dev, which involves adding lock_tree_write to MutableTree and MemoryTree.	204
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	205	def lock_write(self):
	206	"""See MutableTree.lock_write()."""
	207	self._locks += 1
	208	try:
	209	if self._locks == 1:
	210	self.branch.lock_write()
	211	self._lock_mode = "w"
	212	self._populate_from_branch()
	213	elif self._lock_mode == "r":
	214	raise errors.ReadOnlyError(self)
6754.8.3 by Jelmer Vernooĳ Use context manager in decorators.	215	return lock.LogicalLockResult(self.unlock)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	216	except:
	217	self._locks -= 1
	218	raise
	219
	220	def _populate_from_branch(self):
	221	"""Populate the in-tree state from the branch."""
4190.1.4 by Robert Collins Cache ghosts when we can get them from a RemoteRepository in get_parent_map.	222	self._set_basis()
3668.5.4 by Jelmer Vernooij Eliminate more uses of Repository.revision_tree(None).	223	if self._branch_revision_id == _mod_revision.NULL_REVISION:
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	224	self._parent_ids = []
	225	else:
	226	self._parent_ids = [self._branch_revision_id]
5802.1.1 by Jelmer Vernooij Move Inventory._get_mutable_inventory -> mutable_inventory_from_tree.	227	self._inventory = Inventory(None, self._basis_tree.get_revision_id())
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	228	self._file_transport = MemoryTransport()
	229	# TODO copy the revision trees content, or do it lazy, or something.
5802.1.1 by Jelmer Vernooij Move Inventory._get_mutable_inventory -> mutable_inventory_from_tree.	230	inventory_entries = self._basis_tree.iter_entries_by_dir()
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	231	for path, entry in inventory_entries:
5802.1.1 by Jelmer Vernooij Move Inventory._get_mutable_inventory -> mutable_inventory_from_tree.	232	self._inventory.add(entry.copy())
1731.1.50 by Aaron Bentley Merge bzr.dev	233	if path == '':
1731.1.50 by Aaron Bentley Merge bzr.dev	234	continue
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	235	if entry.kind == 'directory':
	236	self._file_transport.mkdir(path)
	237	elif entry.kind == 'file':
1986.1.4 by Robert Collins Fixup deprecations from bzr.dev.	238	self._file_transport.put_file(path,
6809.4.5 by Jelmer Vernooĳ Swap arguments for get_file_*.	239	self._basis_tree.get_file(path, entry.file_id))
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	240	else:
	241	raise NotImplementedError(self._populate_from_branch)
	242
6809.4.8 by Jelmer Vernooĳ Fix some test failures.	243	def put_file_bytes_non_atomic(self, path, bytes, file_id=None):
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	244	"""See MutableTree.put_file_bytes_non_atomic."""
6809.4.8 by Jelmer Vernooĳ Fix some test failures.	245	self._file_transport.put_bytes(path, bytes)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	246
	247	def unlock(self):
	248	"""Release a lock.
	249
	250	This frees all cached state when the last lock context for the tree is
	251	left.
	252	"""
	253	if self._locks == 1:
	254	self._basis_tree = None
	255	self._parent_ids = []
	256	self._inventory = None
	257	try:
	258	self.branch.unlock()
	259	finally:
	260	self._locks = 0
	261	self._lock_mode = None
	262	else:
	263	self._locks -= 1
	264
6809.4.25 by Jelmer Vernooĳ Add paths argument to .unversion.	265	def unversion(self, paths, file_ids=None):
	266	"""Remove the paths from the current versioned set.
1986.1.3 by Robert Collins Merge bzr.dev.	267
	268	When a file_id is unversioned, all of its children are automatically
	269	unversioned.
	270
6809.4.25 by Jelmer Vernooĳ Add paths argument to .unversion.	271	:param paths: The paths to stop versioning.
1986.1.3 by Robert Collins Merge bzr.dev.	272	:raises: NoSuchId if any fileid is not currently versioned.
1986.1.3 by Robert Collins Merge bzr.dev.	273	"""
6754.8.18 by Jelmer Vernooĳ Get rid of lock_tree_write.	274	with self.lock_tree_write():
	275	# XXX: This should be in mutabletree, but the inventory-save action
	276	# is not relevant to memory tree. Until that is done in unlock by
	277	# working tree, we cannot share the implementation.
6809.4.25 by Jelmer Vernooĳ Add paths argument to .unversion.	278	if file_ids is None:
	279	file_ids = {self.path2id(path) for path in paths}
6754.8.18 by Jelmer Vernooĳ Get rid of lock_tree_write.	280	for file_id in file_ids:
	281	if self._inventory.has_id(file_id):
	282	self._inventory.remove_recursive_id(file_id)
	283	else:
	284	raise errors.NoSuchId(self, file_id)
1986.1.3 by Robert Collins Merge bzr.dev.	285
2418.5.1 by John Arbash Meinel Make a Branch helper which can create a very basic MemoryTree with history.	286	def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
	287	"""See MutableTree.set_parent_trees()."""
2598.5.2 by Aaron Bentley Got all tests passing with Branch returning 'null:' for null revision	288	for revision_id in revision_ids:
	289	_mod_revision.check_not_reserved_id(revision_id)
2418.5.1 by John Arbash Meinel Make a Branch helper which can create a very basic MemoryTree with history.	290	if len(revision_ids) == 0:
	291	self._parent_ids = []
4190.1.4 by Robert Collins Cache ghosts when we can get them from a RemoteRepository in get_parent_map.	292	self._branch_revision_id = _mod_revision.NULL_REVISION
2418.5.1 by John Arbash Meinel Make a Branch helper which can create a very basic MemoryTree with history.	293	else:
	294	self._parent_ids = revision_ids
	295	self._branch_revision_id = revision_ids[0]
4190.1.4 by Robert Collins Cache ghosts when we can get them from a RemoteRepository in get_parent_map.	296	self._allow_leftmost_as_ghost = allow_leftmost_as_ghost
	297	self._set_basis()
6747.2.2 by Jelmer Vernooĳ Fix tests.	298
4190.1.4 by Robert Collins Cache ghosts when we can get them from a RemoteRepository in get_parent_map.	299	def _set_basis(self):
	300	try:
	301	self._basis_tree = self.branch.repository.revision_tree(
	302	self._branch_revision_id)
	303	except errors.NoSuchRevision:
	304	if self._allow_leftmost_as_ghost:
	305	self._basis_tree = self.branch.repository.revision_tree(
	306	_mod_revision.NULL_REVISION)
	307	else:
	308	raise
2418.5.1 by John Arbash Meinel Make a Branch helper which can create a very basic MemoryTree with history.	309
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	310	def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
	311	"""See MutableTree.set_parent_trees()."""
	312	if len(parents_list) == 0:
	313	self._parent_ids = []
3668.5.1 by Jelmer Vernooij Use NULL_REVISION rather than None for Repository.revision_tree().	314	self._basis_tree = self.branch.repository.revision_tree(
	315	_mod_revision.NULL_REVISION)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	316	else:
	317	if parents_list[0][1] is None and not allow_leftmost_as_ghost:
	318	# a ghost in the left most parent
	319	raise errors.GhostRevisionUnusableHere(parents_list[0][0])
	320	self._parent_ids = [parent_id for parent_id, tree in parents_list]
2598.5.2 by Aaron Bentley Got all tests passing with Branch returning 'null:' for null revision	321	if parents_list[0][1] is None or parents_list[0][1] == 'null:':
3668.5.1 by Jelmer Vernooij Use NULL_REVISION rather than None for Repository.revision_tree().	322	self._basis_tree = self.branch.repository.revision_tree(
	323	_mod_revision.NULL_REVISION)
1986.1.2 by Robert Collins Various changes to allow non-workingtree specific tests to run entirely	324	else:
	325	self._basis_tree = parents_list[0][1]
1986.1.6 by Robert Collins Add MemoryTree.last_revision.	326	self._branch_revision_id = parents_list[0][0]