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# Copyright (C) 2005, 2006 Canonical Ltd
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# Copyright (C) 2005 Canonical Ltd
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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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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"""WorkingTree object and friends.
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A WorkingTree represents the editable working copy of a branch.
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Operations which represent the WorkingTree are also done here,
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such as renaming or adding files. The WorkingTree has an inventory
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which is updated by these operations. A commit produces a
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new revision based on the workingtree and its inventory.
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At the moment every WorkingTree has its own branch. Remote
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WorkingTrees aren't supported.
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To get a WorkingTree, call bzrdir.open_workingtree() or
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WorkingTree.open(dir).
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MERGE_MODIFIED_HEADER_1 = "BZR merge-modified list format 1"
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CONFLICT_HEADER_1 = "BZR conflict list format 1"
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# TODO: Give the workingtree sole responsibility for the working inventory;
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# remove the variable and references to it from the branch. This may require
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# updating the commit code so as to update the inventory within the working
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# copy, and making sure there's only one WorkingTree for any directory on disk.
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# At the moment they may alias the inventory and have old copies of it in
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# memory. (Now done? -- mbp 20060309)
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from binascii import hexlify
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from copy import deepcopy
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from cStringIO import StringIO
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# TODO: Don't allow WorkingTrees to be constructed for remote branches.
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# FIXME: I don't know if writing out the cache from the destructor is really a
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# good idea, because destructors are considered poor taste in Python, and
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# it's not predictable when it will be written out.
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from bzrlib import bzrdir, errors, ignores, osutils, urlutils
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from bzrlib.atomicfile import AtomicFile
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from bzrlib.conflicts import Conflict, ConflictList, CONFLICT_SUFFIXES
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.errors import (BzrCheckError,
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WeaveRevisionNotPresent,
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MergeModifiedFormatError,
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from bzrlib.inventory import InventoryEntry, Inventory
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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from bzrlib.merge import merge_inner, transform_tree
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import bzrlib.mutabletree
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from bzrlib.mutabletree import needs_tree_write_lock
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from bzrlib.osutils import (
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from bzrlib.progress import DummyProgress, ProgressPhase
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from bzrlib.revision import NULL_REVISION
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import bzrlib.revisiontree
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from bzrlib.rio import RioReader, rio_file, Stanza
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from bzrlib.symbol_versioning import (deprecated_passed,
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DEPRECATED_PARAMETER,
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from bzrlib.trace import mutter, note
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from bzrlib.transform import build_tree
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from bzrlib.transport import get_transport
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from bzrlib.transport.local import LocalTransport
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from bzrlib.textui import show_status
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# the regex removes any weird characters; we don't escape them
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# but rather just pull them out
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_gen_file_id_re = re.compile(r'[^\w.]')
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_gen_id_suffix = None
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def _next_id_suffix():
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"""Create a new file id suffix that is reasonably unique.
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On the first call we combine the current time with 64 bits of randomness
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to give a highly probably globally unique number. Then each call in the same
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process adds 1 to a serial number we append to that unique value.
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# XXX TODO: change bzrlib.add.smart_add to call workingtree.add() rather
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# than having to move the id randomness out of the inner loop like this.
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# XXX TODO: for the global randomness this uses we should add the thread-id
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# before the serial #.
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global _gen_id_suffix, _gen_id_serial
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if _gen_id_suffix is None:
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_gen_id_suffix = "-%s-%s-" % (compact_date(time()), rand_chars(16))
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return _gen_id_suffix + str(_gen_id_serial)
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def gen_file_id(name):
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"""Return new file id for the basename 'name'.
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The uniqueness is supplied from _next_id_suffix.
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# The real randomness is in the _next_id_suffix, the
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# rest of the identifier is just to be nice.
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# 1) Remove non-ascii word characters to keep the ids portable
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# 2) squash to lowercase, so the file id doesn't have to
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# be escaped (case insensitive filesystems would bork for ids
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# that only differred in case without escaping).
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# 3) truncate the filename to 20 chars. Long filenames also bork on some
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# 4) Removing starting '.' characters to prevent the file ids from
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# being considered hidden.
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ascii_word_only = _gen_file_id_re.sub('', name.lower())
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short_no_dots = ascii_word_only.lstrip('.')[:20]
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return short_no_dots + _next_id_suffix()
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"""Return a new tree-root file id."""
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return gen_file_id('TREE_ROOT')
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from bzrlib.osutils import appendpath, file_kind, isdir, splitpath
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from bzrlib.errors import BzrCheckError
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from bzrlib.trace import mutter
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class TreeEntry(object):
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"""An entry that implements the minimum interface used by commands.
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"""An entry that implements the minium interface used by commands.
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This needs further inspection, it may be better to have
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InventoryEntries without ids - though that seems wrong. For now,
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inv = self._inventory
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for path, ie in inv.iter_entries():
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if osutils.lexists(self.abspath(path)):
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if bzrlib.osutils.lexists(self.abspath(path)):
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def __repr__(self):
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return "<%s of %s>" % (self.__class__.__name__,
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getattr(self, 'basedir', None))
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def abspath(self, filename):
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return pathjoin(self.basedir, filename)
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def basis_tree(self):
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"""Return RevisionTree for the current last revision.
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If the left most parent is a ghost then the returned tree will be an
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empty tree - one obtained by calling repository.revision_tree(None).
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revision_id = self.get_parent_ids()[0]
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# no parents, return an empty revision tree.
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# in the future this should return the tree for
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# 'empty:' - the implicit root empty tree.
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return self.branch.repository.revision_tree(None)
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xml = self.read_basis_inventory()
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inv = bzrlib.xml6.serializer_v6.read_inventory_from_string(xml)
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if inv is not None and inv.revision_id == revision_id:
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return bzrlib.tree.RevisionTree(self.branch.repository,
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except (NoSuchFile, errors.BadInventoryFormat):
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# No cached copy available, retrieve from the repository.
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# FIXME? RBC 20060403 should we cache the inventory locally
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return self.branch.repository.revision_tree(revision_id)
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except errors.RevisionNotPresent:
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# the basis tree *may* be a ghost or a low level error may have
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# occured. If the revision is present, its a problem, if its not
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if self.branch.repository.has_revision(revision_id):
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# the basis tree is a ghost so return an empty tree.
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return self.branch.repository.revision_tree(None)
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@deprecated_method(zero_eight)
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def create(branch, directory):
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"""Create a workingtree for branch at directory.
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If existing_directory already exists it must have a .bzr directory.
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If it does not exist, it will be created.
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This returns a new WorkingTree object for the new checkout.
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TODO FIXME RBC 20060124 when we have checkout formats in place this
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should accept an optional revisionid to checkout [and reject this if
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checking out into the same dir as a pre-checkout-aware branch format.]
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XXX: When BzrDir is present, these should be created through that
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warnings.warn('delete WorkingTree.create', stacklevel=3)
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transport = get_transport(directory)
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if branch.bzrdir.root_transport.base == transport.base:
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return branch.bzrdir.create_workingtree()
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# different directory,
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# create a branch reference
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# and now a working tree.
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raise NotImplementedError
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@deprecated_method(zero_eight)
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def create_standalone(directory):
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"""Create a checkout and a branch and a repo at directory.
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Directory must exist and be empty.
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please use BzrDir.create_standalone_workingtree
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return bzrdir.BzrDir.create_standalone_workingtree(directory)
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def relpath(self, path):
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"""Return the local path portion from a given path.
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The path may be absolute or relative. If its a relative path it is
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interpreted relative to the python current working directory.
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return relpath(self.basedir, path)
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return os.path.join(self.basedir, filename)
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def has_filename(self, filename):
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return osutils.lexists(self.abspath(filename))
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return bzrlib.osutils.lexists(self.abspath(filename))
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def get_file(self, file_id):
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return self.get_file_byname(self.id2path(file_id))
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def get_file_text(self, file_id):
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return self.get_file(file_id).read()
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def get_file_byname(self, filename):
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return file(self.abspath(filename), 'rb')
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def get_parent_ids(self):
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"""See Tree.get_parent_ids.
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This implementation reads the pending merges list and last_revision
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value and uses that to decide what the parents list should be.
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last_rev = self._last_revision()
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merges_file = self._control_files.get_utf8('pending-merges')
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for l in merges_file.readlines():
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parents.append(l.rstrip('\n'))
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def get_root_id(self):
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"""Return the id of this trees root"""
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inv = self.read_working_inventory()
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return inv.root.file_id
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def _get_store_filename(self, file_id):
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## XXX: badly named; this is not in the store at all
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## XXX: badly named; this isn't in the store at all
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return self.abspath(self.id2path(file_id))
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def clone(self, to_bzrdir, revision_id=None, basis=None):
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"""Duplicate this working tree into to_bzr, including all state.
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Specifically modified files are kept as modified, but
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ignored and unknown files are discarded.
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If you want to make a new line of development, see bzrdir.sprout()
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If not None, the cloned tree will have its last revision set to
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revision, and and difference between the source trees last revision
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and this one merged in.
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If not None, a closer copy of a tree which may have some files in
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common, and which file content should be preferentially copied from.
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# assumes the target bzr dir format is compatible.
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result = self._format.initialize(to_bzrdir)
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self.copy_content_into(result, revision_id)
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def copy_content_into(self, tree, revision_id=None):
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"""Copy the current content and user files of this tree into tree."""
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if revision_id is None:
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transform_tree(tree, self)
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# TODO now merge from tree.last_revision to revision (to preserve
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# user local changes)
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transform_tree(tree, self)
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tree.set_parent_ids([revision_id])
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def id2abspath(self, file_id):
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return self.abspath(self.id2path(file_id))
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def has_id(self, file_id):
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# files that have been deleted are excluded
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inv = self._inventory
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if not inv.has_id(file_id):
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path = inv.id2path(file_id)
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return osutils.lexists(self.abspath(path))
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return bzrlib.osutils.lexists(self.abspath(path))
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def has_or_had_id(self, file_id):
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if file_id == self.inventory.root.file_id:
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return self.inventory.has_id(file_id)
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__contains__ = has_id
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def get_file_size(self, file_id):
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return os.path.getsize(self.id2abspath(file_id))
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def get_file_sha1(self, file_id, path=None):
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path = self._inventory.id2path(file_id)
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def get_file_sha1(self, file_id):
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path = self._inventory.id2path(file_id)
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return self._hashcache.get_sha1(path)
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def get_file_mtime(self, file_id, path=None):
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path = self._inventory.id2path(file_id)
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return os.lstat(self.abspath(path)).st_mtime
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if not supports_executable():
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def is_executable(self, file_id, path=None):
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def is_executable(self, file_id):
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return self._inventory[file_id].executable
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def is_executable(self, file_id, path=None):
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path = self._inventory.id2path(file_id)
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path = self._inventory.id2path(file_id)
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mode = os.lstat(self.abspath(path)).st_mode
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return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
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def _add(self, files, ids, kinds):
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"""See MutableTree._add."""
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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# the read and write working inventory should not occur in this
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# function - they should be part of lock_write and unlock.
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inv = self.read_working_inventory()
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for f, file_id, kind in zip(files, ids, kinds):
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assert kind is not None
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inv.add_path(f, kind=kind)
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inv.add_path(f, kind=kind, file_id=file_id)
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self._write_inventory(inv)
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@needs_tree_write_lock
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def _gather_kinds(self, files, kinds):
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"""See MutableTree._gather_kinds."""
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for pos, f in enumerate(files):
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if kinds[pos] is None:
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fullpath = normpath(self.abspath(f))
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kinds[pos] = file_kind(fullpath)
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if e.errno == errno.ENOENT:
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raise NoSuchFile(fullpath)
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def add_parent_tree_id(self, revision_id, allow_leftmost_as_ghost=False):
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"""Add revision_id as a parent.
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This is equivalent to retrieving the current list of parent ids
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and setting the list to its value plus revision_id.
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:param revision_id: The revision id to add to the parent list. It may
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be a ghost revision as long as its not the first parent to be added,
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or the allow_leftmost_as_ghost parameter is set True.
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:param allow_leftmost_as_ghost: Allow the first parent to be a ghost.
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parents = self.get_parent_ids() + [revision_id]
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self.set_parent_ids(parents,
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allow_leftmost_as_ghost=len(parents) > 1 or allow_leftmost_as_ghost)
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@needs_tree_write_lock
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def add_parent_tree(self, parent_tuple, allow_leftmost_as_ghost=False):
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"""Add revision_id, tree tuple as a parent.
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This is equivalent to retrieving the current list of parent trees
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and setting the list to its value plus parent_tuple. See also
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add_parent_tree_id - if you only have a parent id available it will be
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simpler to use that api. If you have the parent already available, using
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this api is preferred.
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:param parent_tuple: The (revision id, tree) to add to the parent list.
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If the revision_id is a ghost, pass None for the tree.
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:param allow_leftmost_as_ghost: Allow the first parent to be a ghost.
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parent_ids = self.get_parent_ids() + [parent_tuple[0]]
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if len(parent_ids) > 1:
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# the leftmost may have already been a ghost, preserve that if it
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allow_leftmost_as_ghost = True
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self.set_parent_ids(parent_ids,
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allow_leftmost_as_ghost=allow_leftmost_as_ghost)
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@needs_tree_write_lock
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def add_pending_merge(self, *revision_ids):
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# TODO: Perhaps should check at this point that the
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# history of the revision is actually present?
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parents = self.get_parent_ids()
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for rev_id in revision_ids:
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if rev_id in parents:
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parents.append(rev_id)
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self.set_parent_ids(parents, allow_leftmost_as_ghost=True)
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@deprecated_method(zero_eleven)
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def pending_merges(self):
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"""Return a list of pending merges.
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These are revisions that have been merged into the working
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directory but not yet committed.
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As of 0.11 this is deprecated. Please see WorkingTree.get_parent_ids()
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instead - which is available on all tree objects.
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return self.get_parent_ids()[1:]
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@needs_tree_write_lock
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def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
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"""Set the parent ids to revision_ids.
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See also set_parent_trees. This api will try to retrieve the tree data
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for each element of revision_ids from the trees repository. If you have
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tree data already available, it is more efficient to use
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set_parent_trees rather than set_parent_ids. set_parent_ids is however
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an easier API to use.
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:param revision_ids: The revision_ids to set as the parent ids of this
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working tree. Any of these may be ghosts.
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if len(revision_ids) > 0:
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leftmost_id = revision_ids[0]
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if (not allow_leftmost_as_ghost and not
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self.branch.repository.has_revision(leftmost_id)):
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raise errors.GhostRevisionUnusableHere(leftmost_id)
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self.set_last_revision(leftmost_id)
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self.set_last_revision(None)
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merges = revision_ids[1:]
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self._control_files.put_utf8('pending-merges', '\n'.join(merges))
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@needs_tree_write_lock
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def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
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"""See MutableTree.set_parent_trees."""
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# parent trees are not used in current format trees, delegate to
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self.set_parent_ids([rev for (rev, tree) in parents_list],
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allow_leftmost_as_ghost=allow_leftmost_as_ghost)
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@needs_tree_write_lock
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def set_pending_merges(self, rev_list):
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parents = self.get_parent_ids()
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leftmost = parents[:1]
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new_parents = leftmost + rev_list
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self.set_parent_ids(new_parents)
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@needs_tree_write_lock
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def set_merge_modified(self, modified_hashes):
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for file_id, hash in modified_hashes.iteritems():
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yield Stanza(file_id=file_id, hash=hash)
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self._put_rio('merge-hashes', iter_stanzas(), MERGE_MODIFIED_HEADER_1)
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@needs_tree_write_lock
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def _put_rio(self, filename, stanzas, header):
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my_file = rio_file(stanzas, header)
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self._control_files.put(filename, my_file)
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@needs_write_lock # because merge pulls data into the branch.
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def merge_from_branch(self, branch, to_revision=None):
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"""Merge from a branch into this working tree.
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:param branch: The branch to merge from.
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:param to_revision: If non-None, the merge will merge to to_revision, but
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not beyond it. to_revision does not need to be in the history of
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the branch when it is supplied. If None, to_revision defaults to
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branch.last_revision().
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from bzrlib.merge import Merger, Merge3Merger
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pb = bzrlib.ui.ui_factory.nested_progress_bar()
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merger = Merger(self.branch, this_tree=self, pb=pb)
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merger.pp = ProgressPhase("Merge phase", 5, pb)
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merger.pp.next_phase()
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# check that there are no
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merger.check_basis(check_clean=True, require_commits=False)
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if to_revision is None:
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to_revision = branch.last_revision()
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merger.other_rev_id = to_revision
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if merger.other_rev_id is None:
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raise error.NoCommits(branch)
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self.branch.fetch(branch, last_revision=merger.other_rev_id)
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merger.other_basis = merger.other_rev_id
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merger.other_tree = self.branch.repository.revision_tree(
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merger.pp.next_phase()
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if merger.base_rev_id == merger.other_rev_id:
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raise errors.PointlessMerge
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merger.backup_files = False
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merger.merge_type = Merge3Merger
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merger.set_interesting_files(None)
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merger.show_base = False
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merger.reprocess = False
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conflicts = merger.do_merge()
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def merge_modified(self):
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hashfile = self._control_files.get('merge-hashes')
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if hashfile.next() != MERGE_MODIFIED_HEADER_1 + '\n':
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raise MergeModifiedFormatError()
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except StopIteration:
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raise MergeModifiedFormatError()
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for s in RioReader(hashfile):
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file_id = s.get("file_id")
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if file_id not in self.inventory:
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if hash == self.get_file_sha1(file_id):
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merge_hashes[file_id] = hash
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def mkdir(self, path, file_id=None):
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"""See MutableTree.mkdir()."""
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file_id = gen_file_id(os.path.basename(path))
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os.mkdir(self.abspath(path))
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self.add(path, file_id, 'directory')
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return bool(stat.S_ISREG(mode) and stat.S_IEXEC&mode)
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def get_symlink_target(self, file_id):
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return os.readlink(self.id2abspath(file_id))
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return os.readlink(self.id2path(file_id))
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def file_class(self, filename):
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191
if self.path2id(filename):
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# make a last minute entry
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yield fp[1:], c, fk, f_ie.file_id, f_ie
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yield fp[1:], c, fk, None, fk_entries[fk]()
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yield fp[1:], c, fk, None, TreeEntry()
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if fk == 'directory':
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entry = TreeDirectory()
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elif fk == 'symlink':
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yield fp, c, fk, (f_ie and f_ie.file_id), entry
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if fk != 'directory':
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# But do this child first
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new_children = os.listdir(fap)
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new_children = collections.deque(new_children)
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stack.append((f_ie.file_id, fp, fap, new_children))
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# Break out of inner loop, so that we start outer loop with child
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# if we finished all children, pop it off the stack
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@needs_tree_write_lock
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def move(self, from_paths, to_name):
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to_name must exist in the inventory.
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If to_name exists and is a directory, the files are moved into
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it, keeping their old names.
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Note that to_name is only the last component of the new name;
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this doesn't change the directory.
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This returns a list of (from_path, to_path) pairs for each
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## TODO: Option to move IDs only
939
assert not isinstance(from_paths, basestring)
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to_abs = self.abspath(to_name)
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if not isdir(to_abs):
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raise BzrError("destination %r is not a directory" % to_abs)
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if not self.has_filename(to_name):
945
raise BzrError("destination %r not in working directory" % to_abs)
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to_dir_id = inv.path2id(to_name)
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if to_dir_id is None and to_name != '':
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raise BzrError("destination %r is not a versioned directory" % to_name)
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to_dir_ie = inv[to_dir_id]
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if to_dir_ie.kind != 'directory':
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raise BzrError("destination %r is not a directory" % to_abs)
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to_idpath = inv.get_idpath(to_dir_id)
956
if not self.has_filename(f):
957
raise BzrError("%r does not exist in working tree" % f)
958
f_id = inv.path2id(f)
960
raise BzrError("%r is not versioned" % f)
961
name_tail = splitpath(f)[-1]
962
dest_path = pathjoin(to_name, name_tail)
963
if self.has_filename(dest_path):
964
raise BzrError("destination %r already exists" % dest_path)
965
if f_id in to_idpath:
966
raise BzrError("can't move %r to a subdirectory of itself" % f)
968
# OK, so there's a race here, it's possible that someone will
969
# create a file in this interval and then the rename might be
970
# left half-done. But we should have caught most problems.
971
orig_inv = deepcopy(self.inventory)
974
name_tail = splitpath(f)[-1]
975
dest_path = pathjoin(to_name, name_tail)
976
result.append((f, dest_path))
977
inv.rename(inv.path2id(f), to_dir_id, name_tail)
979
rename(self.abspath(f), self.abspath(dest_path))
981
raise BzrError("failed to rename %r to %r: %s" %
982
(f, dest_path, e[1]),
983
["rename rolled back"])
985
# restore the inventory on error
986
self._set_inventory(orig_inv)
988
self._write_inventory(inv)
991
@needs_tree_write_lock
992
def rename_one(self, from_rel, to_rel):
995
This can change the directory or the filename or both.
998
if not self.has_filename(from_rel):
999
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1000
if self.has_filename(to_rel):
1001
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1003
file_id = inv.path2id(from_rel)
1005
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1007
entry = inv[file_id]
1008
from_parent = entry.parent_id
1009
from_name = entry.name
1011
if inv.path2id(to_rel):
1012
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1014
to_dir, to_tail = os.path.split(to_rel)
1015
to_dir_id = inv.path2id(to_dir)
1016
if to_dir_id is None and to_dir != '':
1017
raise BzrError("can't determine destination directory id for %r" % to_dir)
1019
mutter("rename_one:")
1020
mutter(" file_id {%s}" % file_id)
1021
mutter(" from_rel %r" % from_rel)
1022
mutter(" to_rel %r" % to_rel)
1023
mutter(" to_dir %r" % to_dir)
1024
mutter(" to_dir_id {%s}" % to_dir_id)
1026
inv.rename(file_id, to_dir_id, to_tail)
1028
from_abs = self.abspath(from_rel)
1029
to_abs = self.abspath(to_rel)
1031
rename(from_abs, to_abs)
1033
inv.rename(file_id, from_parent, from_name)
1034
raise BzrError("failed to rename %r to %r: %s"
1035
% (from_abs, to_abs, e[1]),
1036
["rename rolled back"])
1037
self._write_inventory(inv)
262
# don't descend unversioned directories
265
for ff in descend(fp, f_ie.file_id, fap):
268
for f in descend('', inv.root.file_id, self.basedir):
1040
273
def unknowns(self):
1041
"""Return all unknown files.
1043
These are files in the working directory that are not versioned or
1044
control files or ignored.
1046
274
for subp in self.extras():
1047
275
if not self.is_ignored(subp):
1050
@needs_tree_write_lock
1051
def unversion(self, file_ids):
1052
"""Remove the file ids in file_ids from the current versioned set.
1054
When a file_id is unversioned, all of its children are automatically
1057
:param file_ids: The file ids to stop versioning.
1058
:raises: NoSuchId if any fileid is not currently versioned.
1060
for file_id in file_ids:
1061
if self._inventory.has_id(file_id):
1062
self._inventory.remove_recursive_id(file_id)
1064
raise errors.NoSuchId(self, file_id)
1066
# in the future this should just set a dirty bit to wait for the
1067
# final unlock. However, until all methods of workingtree start
1068
# with the current in -memory inventory rather than triggering
1069
# a read, it is more complex - we need to teach read_inventory
1070
# to know when to read, and when to not read first... and possibly
1071
# to save first when the in memory one may be corrupted.
1072
# so for now, we just only write it if it is indeed dirty.
1074
self._write_inventory(self._inventory)
1076
@deprecated_method(zero_eight)
1077
278
def iter_conflicts(self):
1078
"""List all files in the tree that have text or content conflicts.
1079
DEPRECATED. Use conflicts instead."""
1080
return self._iter_conflicts()
1082
def _iter_conflicts(self):
1083
279
conflicted = set()
1084
for info in self.list_files():
280
for path in (s[0] for s in self.list_files()):
1086
281
stem = get_conflicted_stem(path)
1087
282
if stem is None:
1294
356
# treat dotfiles correctly and allows * to match /.
1295
357
# Eventually it should be replaced with something more
1298
rules = self._get_ignore_rules_as_regex()
1299
for regex, mapping in rules:
1300
match = regex.match(filename)
1301
if match is not None:
1302
# one or more of the groups in mapping will have a non-None
1304
groups = match.groups()
1305
rules = [mapping[group] for group in
1306
mapping if groups[group] is not None]
1310
def kind(self, file_id):
1311
return file_kind(self.id2abspath(file_id))
1313
def last_revision(self):
1314
"""Return the last revision of the branch for this tree.
1316
This format tree does not support a separate marker for last-revision
1317
compared to the branch.
1319
See MutableTree.last_revision
1321
return self._last_revision()
1324
def _last_revision(self):
1325
"""helper for get_parent_ids."""
1326
return self.branch.last_revision()
1328
def is_locked(self):
1329
return self._control_files.is_locked()
1331
def lock_read(self):
1332
"""See Branch.lock_read, and WorkingTree.unlock."""
1333
self.branch.lock_read()
1335
return self._control_files.lock_read()
1337
self.branch.unlock()
1340
def lock_tree_write(self):
1341
"""See MutableTree.lock_tree_write, and WorkingTree.unlock."""
1342
self.branch.lock_read()
1344
return self._control_files.lock_write()
1346
self.branch.unlock()
1349
def lock_write(self):
1350
"""See MutableTree.lock_write, and WorkingTree.unlock."""
1351
self.branch.lock_write()
1353
return self._control_files.lock_write()
1355
self.branch.unlock()
1358
def get_physical_lock_status(self):
1359
return self._control_files.get_physical_lock_status()
1361
def _basis_inventory_name(self):
1362
return 'basis-inventory-cache'
1364
@needs_tree_write_lock
1365
def set_last_revision(self, new_revision):
1366
"""Change the last revision in the working tree."""
1367
if self._change_last_revision(new_revision):
1368
self._cache_basis_inventory(new_revision)
1370
def _change_last_revision(self, new_revision):
1371
"""Template method part of set_last_revision to perform the change.
1373
This is used to allow WorkingTree3 instances to not affect branch
1374
when their last revision is set.
1376
if new_revision is None:
1377
self.branch.set_revision_history([])
1380
self.branch.generate_revision_history(new_revision)
1381
except errors.NoSuchRevision:
1382
# not present in the repo - dont try to set it deeper than the tip
1383
self.branch.set_revision_history([new_revision])
1386
def _cache_basis_inventory(self, new_revision):
1387
"""Cache new_revision as the basis inventory."""
1388
# TODO: this should allow the ready-to-use inventory to be passed in,
1389
# as commit already has that ready-to-use [while the format is the
1392
# this double handles the inventory - unpack and repack -
1393
# but is easier to understand. We can/should put a conditional
1394
# in here based on whether the inventory is in the latest format
1395
# - perhaps we should repack all inventories on a repository
1397
# the fast path is to copy the raw xml from the repository. If the
1398
# xml contains 'revision_id="', then we assume the right
1399
# revision_id is set. We must check for this full string, because a
1400
# root node id can legitimately look like 'revision_id' but cannot
1402
xml = self.branch.repository.get_inventory_xml(new_revision)
1403
firstline = xml.split('\n', 1)[0]
1404
if (not 'revision_id="' in firstline or
1405
'format="6"' not in firstline):
1406
inv = self.branch.repository.deserialise_inventory(
1408
inv.revision_id = new_revision
1409
xml = bzrlib.xml6.serializer_v6.write_inventory_to_string(inv)
1410
assert isinstance(xml, str), 'serialised xml must be bytestring.'
1411
path = self._basis_inventory_name()
1413
self._control_files.put(path, sio)
1414
except (errors.NoSuchRevision, errors.RevisionNotPresent):
1417
def read_basis_inventory(self):
1418
"""Read the cached basis inventory."""
1419
path = self._basis_inventory_name()
1420
return self._control_files.get(path).read()
1423
def read_working_inventory(self):
1424
"""Read the working inventory."""
1425
# ElementTree does its own conversion from UTF-8, so open in
1427
result = bzrlib.xml5.serializer_v5.read_inventory(
1428
self._control_files.get('inventory'))
1429
self._set_inventory(result)
1432
@needs_tree_write_lock
1433
def remove(self, files, verbose=False, to_file=None):
1434
"""Remove nominated files from the working inventory..
1436
This does not remove their text. This does not run on XXX on what? RBC
1438
TODO: Refuse to remove modified files unless --force is given?
1440
TODO: Do something useful with directories.
1442
TODO: Should this remove the text or not? Tough call; not
1443
removing may be useful and the user can just use use rm, and
1444
is the opposite of add. Removing it is consistent with most
1445
other tools. Maybe an option.
1447
## TODO: Normalize names
1448
## TODO: Remove nested loops; better scalability
1449
if isinstance(files, basestring):
1452
inv = self.inventory
1454
# do this before any modifications
1456
fid = inv.path2id(f)
1458
# TODO: Perhaps make this just a warning, and continue?
1459
# This tends to happen when
1460
raise NotVersionedError(path=f)
1462
# having remove it, it must be either ignored or unknown
1463
if self.is_ignored(f):
360
for pat in self.get_ignore_list():
361
if '/' in pat or '\\' in pat:
363
# as a special case, you can put ./ at the start of a
364
# pattern; this is good to match in the top-level
367
if (pat[:2] == './') or (pat[:2] == '.\\'):
1467
show_status(new_status, inv[fid].kind, f, to_file=to_file)
1470
self._write_inventory(inv)
1472
@needs_tree_write_lock
1473
def revert(self, filenames, old_tree=None, backups=True,
1474
pb=DummyProgress()):
1475
from transform import revert
1476
from conflicts import resolve
1477
if old_tree is None:
1478
old_tree = self.basis_tree()
1479
conflicts = revert(self, old_tree, filenames, backups, pb)
1480
if not len(filenames):
1481
self.set_parent_ids(self.get_parent_ids()[:1])
1484
resolve(self, filenames, ignore_misses=True)
1487
# XXX: This method should be deprecated in favour of taking in a proper
1488
# new Inventory object.
1489
@needs_tree_write_lock
1490
def set_inventory(self, new_inventory_list):
1491
from bzrlib.inventory import (Inventory,
1496
inv = Inventory(self.get_root_id())
1497
for path, file_id, parent, kind in new_inventory_list:
1498
name = os.path.basename(path)
1501
# fixme, there should be a factory function inv,add_??
1502
if kind == 'directory':
1503
inv.add(InventoryDirectory(file_id, name, parent))
1504
elif kind == 'file':
1505
inv.add(InventoryFile(file_id, name, parent))
1506
elif kind == 'symlink':
1507
inv.add(InventoryLink(file_id, name, parent))
371
if fnmatch.fnmatchcase(filename, newpat):
1509
raise BzrError("unknown kind %r" % kind)
1510
self._write_inventory(inv)
1512
@needs_tree_write_lock
1513
def set_root_id(self, file_id):
1514
"""Set the root id for this tree."""
1515
inv = self.read_working_inventory()
1516
orig_root_id = inv.root.file_id
1517
del inv._byid[inv.root.file_id]
1518
inv.root.file_id = file_id
1519
inv._byid[inv.root.file_id] = inv.root
1522
if entry.parent_id == orig_root_id:
1523
entry.parent_id = inv.root.file_id
1524
self._write_inventory(inv)
1527
"""See Branch.unlock.
1529
WorkingTree locking just uses the Branch locking facilities.
1530
This is current because all working trees have an embedded branch
1531
within them. IF in the future, we were to make branch data shareable
1532
between multiple working trees, i.e. via shared storage, then we
1533
would probably want to lock both the local tree, and the branch.
1535
raise NotImplementedError(self.unlock)
1539
"""Update a working tree along its branch.
1541
This will update the branch if its bound too, which means we have multiple trees involved:
1542
The new basis tree of the master.
1543
The old basis tree of the branch.
1544
The old basis tree of the working tree.
1545
The current working tree state.
1546
pathologically all three may be different, and non ancestors of each other.
1547
Conceptually we want to:
1548
Preserve the wt.basis->wt.state changes
1549
Transform the wt.basis to the new master basis.
1550
Apply a merge of the old branch basis to get any 'local' changes from it into the tree.
1551
Restore the wt.basis->wt.state changes.
1553
There isn't a single operation at the moment to do that, so we:
1554
Merge current state -> basis tree of the master w.r.t. the old tree basis.
1555
Do a 'normal' merge of the old branch basis if it is relevant.
1557
old_tip = self.branch.update()
1558
# here if old_tip is not None, it is the old tip of the branch before
1559
# it was updated from the master branch. This should become a pending
1560
# merge in the working tree to preserve the user existing work. we
1561
# cant set that until we update the working trees last revision to be
1562
# one from the new branch, because it will just get absorbed by the
1563
# parent de-duplication logic.
1565
# We MUST save it even if an error occurs, because otherwise the users
1566
# local work is unreferenced and will appear to have been lost.
1570
last_rev = self.get_parent_ids()[0]
1573
if last_rev != self.branch.last_revision():
1574
# merge tree state up to new branch tip.
1575
basis = self.basis_tree()
1576
to_tree = self.branch.basis_tree()
1577
result += merge_inner(self.branch,
1581
# TODO - dedup parents list with things merged by pull ?
1582
# reuse the tree we've updated to to set the basis:
1583
parent_trees = [(self.branch.last_revision(), to_tree)]
1584
merges = self.get_parent_ids()[1:]
1585
# Ideally we ask the tree for the trees here, that way the working
1586
# tree can decide whether to give us teh entire tree or give us a
1587
# lazy initialised tree. dirstate for instance will have the trees
1588
# in ram already, whereas a last-revision + basis-inventory tree
1589
# will not, but also does not need them when setting parents.
1590
for parent in merges:
1591
parent_trees.append(
1592
(parent, self.branch.repository.revision_tree(parent)))
1593
if old_tip is not None:
1594
parent_trees.append(
1595
(old_tip, self.branch.repository.revision_tree(old_tip)))
1596
self.set_parent_trees(parent_trees)
1597
last_rev = parent_trees[0][0]
374
if fnmatch.fnmatchcase(splitpath(filename)[-1], pat):
1599
# the working tree had the same last-revision as the master
1600
# branch did. We may still have pivot local work from the local
1601
# branch into old_tip:
1602
if old_tip is not None:
1603
self.add_parent_tree_id(old_tip)
1604
if old_tip and old_tip != last_rev:
1605
# our last revision was not the prior branch last revision
1606
# and we have converted that last revision to a pending merge.
1607
# base is somewhere between the branch tip now
1608
# and the now pending merge
1609
from bzrlib.revision import common_ancestor
1611
base_rev_id = common_ancestor(self.branch.last_revision(),
1613
self.branch.repository)
1614
except errors.NoCommonAncestor:
1616
base_tree = self.branch.repository.revision_tree(base_rev_id)
1617
other_tree = self.branch.repository.revision_tree(old_tip)
1618
result += merge_inner(self.branch,
1624
@needs_tree_write_lock
1625
def _write_inventory(self, inv):
1626
"""Write inventory as the current inventory."""
1628
bzrlib.xml5.serializer_v5.write_inventory(inv, sio)
1630
self._control_files.put('inventory', sio)
1631
self._set_inventory(inv)
1632
mutter('wrote working inventory')
1634
def set_conflicts(self, arg):
1635
raise UnsupportedOperation(self.set_conflicts, self)
1637
def add_conflicts(self, arg):
1638
raise UnsupportedOperation(self.add_conflicts, self)
1641
def conflicts(self):
1642
conflicts = ConflictList()
1643
for conflicted in self._iter_conflicts():
1646
if file_kind(self.abspath(conflicted)) != "file":
1648
except errors.NoSuchFile:
1651
for suffix in ('.THIS', '.OTHER'):
1653
kind = file_kind(self.abspath(conflicted+suffix))
1656
except errors.NoSuchFile:
1660
ctype = {True: 'text conflict', False: 'contents conflict'}[text]
1661
conflicts.append(Conflict.factory(ctype, path=conflicted,
1662
file_id=self.path2id(conflicted)))
1666
class WorkingTree2(WorkingTree):
1667
"""This is the Format 2 working tree.
1669
This was the first weave based working tree.
1670
- uses os locks for locking.
1671
- uses the branch last-revision.
1674
def lock_tree_write(self):
1675
"""See WorkingTree.lock_tree_write().
1677
In Format2 WorkingTrees we have a single lock for the branch and tree
1678
so lock_tree_write() degrades to lock_write().
1680
self.branch.lock_write()
1682
return self._control_files.lock_write()
1684
self.branch.unlock()
1688
# we share control files:
1689
if self._hashcache.needs_write and self._control_files._lock_count==3:
1690
self._hashcache.write()
1691
# reverse order of locking.
1693
return self._control_files.unlock()
1695
self.branch.unlock()
1698
class WorkingTree3(WorkingTree):
1699
"""This is the Format 3 working tree.
1701
This differs from the base WorkingTree by:
1702
- having its own file lock
1703
- having its own last-revision property.
1705
This is new in bzr 0.8
1709
def _last_revision(self):
1710
"""See Mutable.last_revision."""
1712
return self._control_files.get_utf8('last-revision').read()
1716
def _change_last_revision(self, revision_id):
1717
"""See WorkingTree._change_last_revision."""
1718
if revision_id is None or revision_id == NULL_REVISION:
1720
self._control_files._transport.delete('last-revision')
1721
except errors.NoSuchFile:
1725
self._control_files.put_utf8('last-revision', revision_id)
1728
@needs_tree_write_lock
1729
def set_conflicts(self, conflicts):
1730
self._put_rio('conflicts', conflicts.to_stanzas(),
1733
@needs_tree_write_lock
1734
def add_conflicts(self, new_conflicts):
1735
conflict_set = set(self.conflicts())
1736
conflict_set.update(set(list(new_conflicts)))
1737
self.set_conflicts(ConflictList(sorted(conflict_set,
1738
key=Conflict.sort_key)))
1741
def conflicts(self):
1743
confile = self._control_files.get('conflicts')
1745
return ConflictList()
1747
if confile.next() != CONFLICT_HEADER_1 + '\n':
1748
raise ConflictFormatError()
1749
except StopIteration:
1750
raise ConflictFormatError()
1751
return ConflictList.from_stanzas(RioReader(confile))
1754
if self._hashcache.needs_write and self._control_files._lock_count==1:
1755
self._hashcache.write()
1756
# reverse order of locking.
1758
return self._control_files.unlock()
1760
self.branch.unlock()
379
CONFLICT_SUFFIXES = ('.THIS', '.BASE', '.OTHER')
1763
380
def get_conflicted_stem(path):
1764
381
for suffix in CONFLICT_SUFFIXES:
1765
382
if path.endswith(suffix):
1766
383
return path[:-len(suffix)]
1768
@deprecated_function(zero_eight)
1769
def is_control_file(filename):
1770
"""See WorkingTree.is_control_filename(filename)."""
1771
## FIXME: better check
1772
filename = normpath(filename)
1773
while filename != '':
1774
head, tail = os.path.split(filename)
1775
## mutter('check %r for control file' % ((head, tail),))
1778
if filename == head:
1784
class WorkingTreeFormat(object):
1785
"""An encapsulation of the initialization and open routines for a format.
1787
Formats provide three things:
1788
* An initialization routine,
1792
Formats are placed in an dict by their format string for reference
1793
during workingtree opening. Its not required that these be instances, they
1794
can be classes themselves with class methods - it simply depends on
1795
whether state is needed for a given format or not.
1797
Once a format is deprecated, just deprecate the initialize and open
1798
methods on the format class. Do not deprecate the object, as the
1799
object will be created every time regardless.
1802
_default_format = None
1803
"""The default format used for new trees."""
1806
"""The known formats."""
1809
def find_format(klass, a_bzrdir):
1810
"""Return the format for the working tree object in a_bzrdir."""
1812
transport = a_bzrdir.get_workingtree_transport(None)
1813
format_string = transport.get("format").read()
1814
return klass._formats[format_string]
1816
raise errors.NoWorkingTree(base=transport.base)
1818
raise errors.UnknownFormatError(format=format_string)
1821
def get_default_format(klass):
1822
"""Return the current default format."""
1823
return klass._default_format
1825
def get_format_string(self):
1826
"""Return the ASCII format string that identifies this format."""
1827
raise NotImplementedError(self.get_format_string)
1829
def get_format_description(self):
1830
"""Return the short description for this format."""
1831
raise NotImplementedError(self.get_format_description)
1833
def is_supported(self):
1834
"""Is this format supported?
1836
Supported formats can be initialized and opened.
1837
Unsupported formats may not support initialization or committing or
1838
some other features depending on the reason for not being supported.
1843
def register_format(klass, format):
1844
klass._formats[format.get_format_string()] = format
1847
def set_default_format(klass, format):
1848
klass._default_format = format
1851
def unregister_format(klass, format):
1852
assert klass._formats[format.get_format_string()] is format
1853
del klass._formats[format.get_format_string()]
1857
class WorkingTreeFormat2(WorkingTreeFormat):
1858
"""The second working tree format.
1860
This format modified the hash cache from the format 1 hash cache.
1863
def get_format_description(self):
1864
"""See WorkingTreeFormat.get_format_description()."""
1865
return "Working tree format 2"
1867
def stub_initialize_remote(self, control_files):
1868
"""As a special workaround create critical control files for a remote working tree
1870
This ensures that it can later be updated and dealt with locally,
1871
since BzrDirFormat6 and BzrDirFormat5 cannot represent dirs with
1872
no working tree. (See bug #43064).
1876
bzrlib.xml5.serializer_v5.write_inventory(inv, sio)
1878
control_files.put('inventory', sio)
1880
control_files.put_utf8('pending-merges', '')
1883
def initialize(self, a_bzrdir, revision_id=None):
1884
"""See WorkingTreeFormat.initialize()."""
1885
if not isinstance(a_bzrdir.transport, LocalTransport):
1886
raise errors.NotLocalUrl(a_bzrdir.transport.base)
1887
branch = a_bzrdir.open_branch()
1888
if revision_id is not None:
1891
revision_history = branch.revision_history()
1893
position = revision_history.index(revision_id)
1895
raise errors.NoSuchRevision(branch, revision_id)
1896
branch.set_revision_history(revision_history[:position + 1])
1899
revision = branch.last_revision()
1901
wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
1907
wt._write_inventory(inv)
1908
wt.set_root_id(inv.root.file_id)
1909
basis_tree = branch.repository.revision_tree(revision)
1910
wt.set_parent_trees([(revision, basis_tree)])
1911
build_tree(basis_tree, wt)
1915
super(WorkingTreeFormat2, self).__init__()
1916
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1918
def open(self, a_bzrdir, _found=False):
1919
"""Return the WorkingTree object for a_bzrdir
1921
_found is a private parameter, do not use it. It is used to indicate
1922
if format probing has already been done.
1925
# we are being called directly and must probe.
1926
raise NotImplementedError
1927
if not isinstance(a_bzrdir.transport, LocalTransport):
1928
raise errors.NotLocalUrl(a_bzrdir.transport.base)
1929
return WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
1935
class WorkingTreeFormat3(WorkingTreeFormat):
1936
"""The second working tree format updated to record a format marker.
1939
- exists within a metadir controlling .bzr
1940
- includes an explicit version marker for the workingtree control
1941
files, separate from the BzrDir format
1942
- modifies the hash cache format
1944
- uses a LockDir to guard access for writes.
1947
def get_format_string(self):
1948
"""See WorkingTreeFormat.get_format_string()."""
1949
return "Bazaar-NG Working Tree format 3"
1951
def get_format_description(self):
1952
"""See WorkingTreeFormat.get_format_description()."""
1953
return "Working tree format 3"
1955
_lock_file_name = 'lock'
1956
_lock_class = LockDir
1958
def _open_control_files(self, a_bzrdir):
1959
transport = a_bzrdir.get_workingtree_transport(None)
1960
return LockableFiles(transport, self._lock_file_name,
1963
def initialize(self, a_bzrdir, revision_id=None):
1964
"""See WorkingTreeFormat.initialize().
1966
revision_id allows creating a working tree at a different
1967
revision than the branch is at.
1969
if not isinstance(a_bzrdir.transport, LocalTransport):
1970
raise errors.NotLocalUrl(a_bzrdir.transport.base)
1971
transport = a_bzrdir.get_workingtree_transport(self)
1972
control_files = self._open_control_files(a_bzrdir)
1973
control_files.create_lock()
1974
control_files.lock_write()
1975
control_files.put_utf8('format', self.get_format_string())
1976
branch = a_bzrdir.open_branch()
1977
if revision_id is None:
1978
revision_id = branch.last_revision()
1980
wt = WorkingTree3(a_bzrdir.root_transport.local_abspath('.'),
1986
_control_files=control_files)
1987
wt.lock_tree_write()
1989
wt._write_inventory(inv)
1990
wt.set_root_id(inv.root.file_id)
1991
basis_tree = branch.repository.revision_tree(revision_id)
1992
if revision_id == bzrlib.revision.NULL_REVISION:
1993
wt.set_parent_trees([])
1995
wt.set_parent_trees([(revision_id, basis_tree)])
1996
build_tree(basis_tree, wt)
1999
control_files.unlock()
2003
super(WorkingTreeFormat3, self).__init__()
2004
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
2006
def open(self, a_bzrdir, _found=False):
2007
"""Return the WorkingTree object for a_bzrdir
2009
_found is a private parameter, do not use it. It is used to indicate
2010
if format probing has already been done.
2013
# we are being called directly and must probe.
2014
raise NotImplementedError
2015
if not isinstance(a_bzrdir.transport, LocalTransport):
2016
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2017
return self._open(a_bzrdir, self._open_control_files(a_bzrdir))
2019
def _open(self, a_bzrdir, control_files):
2020
"""Open the tree itself.
2022
:param a_bzrdir: the dir for the tree.
2023
:param control_files: the control files for the tree.
2025
return WorkingTree3(a_bzrdir.root_transport.local_abspath('.'),
2029
_control_files=control_files)
2032
return self.get_format_string()
2035
# formats which have no format string are not discoverable
2036
# and not independently creatable, so are not registered.
2037
__default_format = WorkingTreeFormat3()
2038
WorkingTreeFormat.register_format(__default_format)
2039
WorkingTreeFormat.set_default_format(__default_format)
2040
_legacy_formats = [WorkingTreeFormat2(),
2044
class WorkingTreeTestProviderAdapter(object):
2045
"""A tool to generate a suite testing multiple workingtree formats at once.
2047
This is done by copying the test once for each transport and injecting
2048
the transport_server, transport_readonly_server, and workingtree_format
2049
classes into each copy. Each copy is also given a new id() to make it
2053
def __init__(self, transport_server, transport_readonly_server, formats):
2054
self._transport_server = transport_server
2055
self._transport_readonly_server = transport_readonly_server
2056
self._formats = formats
2058
def _clone_test(self, test, bzrdir_format, workingtree_format, variation):
2059
"""Clone test for adaption."""
2060
new_test = deepcopy(test)
2061
new_test.transport_server = self._transport_server
2062
new_test.transport_readonly_server = self._transport_readonly_server
2063
new_test.bzrdir_format = bzrdir_format
2064
new_test.workingtree_format = workingtree_format
2065
def make_new_test_id():
2066
new_id = "%s(%s)" % (test.id(), variation)
2067
return lambda: new_id
2068
new_test.id = make_new_test_id()
2071
def adapt(self, test):
2072
from bzrlib.tests import TestSuite
2073
result = TestSuite()
2074
for workingtree_format, bzrdir_format in self._formats:
2075
new_test = self._clone_test(
2078
workingtree_format, workingtree_format.__class__.__name__)
2079
result.addTest(new_test)
added
removed
bzrlib/workingtree.py
