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# Copyright (C) 2005, 2006, 2007 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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# 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 cStringIO import StringIO
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bisect import bisect_left
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conflicts as _mod_conflicts,
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from bzrlib.transport import get_transport
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from bzrlib.workingtree_4 import WorkingTreeFormat4
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from bzrlib import symbol_versioning
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, TreeReference
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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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.trace import mutter, note
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from bzrlib.transport.local import LocalTransport
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from bzrlib.progress import DummyProgress, ProgressPhase
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from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
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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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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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ERROR_PATH_NOT_FOUND = 3 # WindowsError errno code, equivalent to ENOENT
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@deprecated_function(zero_thirteen)
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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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Use bzrlib.generate_ids.gen_file_id() instead
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return generate_ids.gen_file_id(name)
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@deprecated_function(zero_thirteen)
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"""Return a new tree-root file id.
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This has been deprecated in favor of bzrlib.generate_ids.gen_root_id()
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return generate_ids.gen_root_id()
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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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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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this is a parallel hierarchy to InventoryEntry, and needs to become
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one of several things: decorates to that hierarchy, children of, or
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Another note is that these objects are currently only used when there is
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no InventoryEntry available - i.e. for unversioned objects.
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Perhaps they should be UnversionedEntry et al. ? - RBC 20051003
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def __eq__(self, other):
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# yes, this us ugly, TODO: best practice __eq__ style.
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return (isinstance(other, TreeEntry)
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and other.__class__ == self.__class__)
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def kind_character(self):
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class TreeDirectory(TreeEntry):
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"""See TreeEntry. This is a directory in a working tree."""
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def __eq__(self, other):
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return (isinstance(other, TreeDirectory)
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and other.__class__ == self.__class__)
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def kind_character(self):
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class TreeFile(TreeEntry):
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"""See TreeEntry. This is a regular file in a working tree."""
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def __eq__(self, other):
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return (isinstance(other, TreeFile)
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and other.__class__ == self.__class__)
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def kind_character(self):
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class TreeLink(TreeEntry):
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"""See TreeEntry. This is a symlink in a working tree."""
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def __eq__(self, other):
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return (isinstance(other, TreeLink)
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and other.__class__ == self.__class__)
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def kind_character(self):
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class WorkingTree(bzrlib.mutabletree.MutableTree):
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"""Working copy tree.
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The inventory is held in the `Branch` working-inventory, and the
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files are in a directory on disk.
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It is possible for a `WorkingTree` to have a filename which is
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not listed in the Inventory and vice versa.
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def __init__(self, basedir='.',
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branch=DEPRECATED_PARAMETER,
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"""Construct a WorkingTree instance. This is not a public API.
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:param branch: A branch to override probing for the branch.
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self._format = _format
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self.bzrdir = _bzrdir
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raise errors.BzrError("Please use bzrdir.open_workingtree or "
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"WorkingTree.open() to obtain a WorkingTree.")
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assert isinstance(basedir, basestring), \
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"base directory %r is not a string" % basedir
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basedir = safe_unicode(basedir)
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mutter("opening working tree %r", basedir)
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if deprecated_passed(branch):
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self._branch = branch
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self._branch = self.bzrdir.open_branch()
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self.basedir = realpath(basedir)
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# if branch is at our basedir and is a format 6 or less
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if isinstance(self._format, WorkingTreeFormat2):
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# share control object
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self._control_files = self.branch.control_files
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# assume all other formats have their own control files.
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assert isinstance(_control_files, LockableFiles), \
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"_control_files must be a LockableFiles, not %r" \
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self._control_files = _control_files
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# update the whole cache up front and write to disk if anything changed;
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# in the future we might want to do this more selectively
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# two possible ways offer themselves : in self._unlock, write the cache
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# if needed, or, when the cache sees a change, append it to the hash
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# cache file, and have the parser take the most recent entry for a
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wt_trans = self.bzrdir.get_workingtree_transport(None)
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cache_filename = wt_trans.local_abspath('stat-cache')
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self._hashcache = hashcache.HashCache(basedir, cache_filename,
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self._control_files._file_mode)
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# is this scan needed ? it makes things kinda slow.
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if _inventory is None:
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# This will be acquired on lock_read() or lock_write()
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self._inventory_is_modified = False
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self._inventory = None
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# the caller of __init__ has provided an inventory,
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# we assume they know what they are doing - as its only
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# the Format factory and creation methods that are
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# permitted to do this.
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self._set_inventory(_inventory, dirty=False)
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fget=lambda self: self._branch,
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doc="""The branch this WorkingTree is connected to.
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This cannot be set - it is reflective of the actual disk structure
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the working tree has been constructed from.
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def break_lock(self):
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"""Break a lock if one is present from another instance.
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Uses the ui factory to ask for confirmation if the lock may be from
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This will probe the repository for its lock as well.
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self._control_files.break_lock()
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self.branch.break_lock()
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def requires_rich_root(self):
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return self._format.requires_rich_root
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def supports_tree_reference(self):
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def _set_inventory(self, inv, dirty):
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"""Set the internal cached inventory.
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:param inv: The inventory to set.
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:param dirty: A boolean indicating whether the inventory is the same
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logical inventory as whats on disk. If True the inventory is not
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the same and should be written to disk or data will be lost, if
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False then the inventory is the same as that on disk and any
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serialisation would be unneeded overhead.
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assert inv.root is not None
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self._inventory = inv
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self._inventory_is_modified = dirty
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def open(path=None, _unsupported=False):
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"""Open an existing working tree at path.
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path = os.path.getcwdu()
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control = bzrdir.BzrDir.open(path, _unsupported)
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return control.open_workingtree(_unsupported)
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def open_containing(path=None):
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"""Open an existing working tree which has its root about path.
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This probes for a working tree at path and searches upwards from there.
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Basically we keep looking up until we find the control directory or
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run into /. If there isn't one, raises NotBranchError.
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TODO: give this a new exception.
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If there is one, it is returned, along with the unused portion of path.
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:return: The WorkingTree that contains 'path', and the rest of path
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path = osutils.getcwd()
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control, relpath = bzrdir.BzrDir.open_containing(path)
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return control.open_workingtree(), relpath
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def open_downlevel(path=None):
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"""Open an unsupported working tree.
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Only intended for advanced situations like upgrading part of a bzrdir.
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return WorkingTree.open(path, _unsupported=True)
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# should be deprecated - this is slow and in any case treating them as a
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# container is (we now know) bad style -- mbp 20070302
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## @deprecated_method(zero_fifteen)
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"""Iterate through file_ids for this tree.
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file_ids are in a WorkingTree if they are in the working inventory
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and the working file exists.
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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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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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return self.revision_tree(revision_id)
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except errors.NoSuchRevision:
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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 osutils.relpath(self.basedir, path)
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def has_filename(self, filename):
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return osutils.lexists(self.abspath(filename))
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def get_file(self, file_id):
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file_id = osutils.safe_file_id(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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file_id = osutils.safe_file_id(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 annotate_iter(self, file_id):
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"""See Tree.annotate_iter
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This implementation will use the basis tree implementation if possible.
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Lines not in the basis are attributed to CURRENT_REVISION
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If there are pending merges, lines added by those merges will be
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incorrectly attributed to CURRENT_REVISION (but after committing, the
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attribution will be correct).
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file_id = osutils.safe_file_id(file_id)
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basis = self.basis_tree()
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changes = self._iter_changes(basis, True, [self.id2path(file_id)],
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require_versioned=True).next()
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changed_content, kind = changes[2], changes[6]
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if not changed_content:
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return basis.annotate_iter(file_id)
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if kind[0] != 'file':
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old_lines = list(basis.annotate_iter(file_id))
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for tree in self.branch.repository.revision_trees(
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self.get_parent_ids()[1:]):
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if file_id not in tree:
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old.append(list(tree.annotate_iter(file_id)))
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return annotate.reannotate(old, self.get_file(file_id).readlines(),
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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('pending-merges')
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except errors.NoSuchFile:
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for l in merges_file.readlines():
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revision_id = osutils.safe_revision_id(l.rstrip('\n'))
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parents.append(revision_id)
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def get_root_id(self):
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"""Return the id of this trees root"""
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return self._inventory.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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file_id = osutils.safe_file_id(file_id)
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return self.abspath(self.id2path(file_id))
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def clone(self, to_bzrdir, revision_id=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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# 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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tree.set_root_id(self.get_root_id())
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if revision_id is None:
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merge.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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merge.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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file_id = osutils.safe_file_id(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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file_id = osutils.safe_file_id(file_id)
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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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def has_or_had_id(self, file_id):
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file_id = osutils.safe_file_id(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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file_id = osutils.safe_file_id(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, stat_value=None):
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file_id = osutils.safe_file_id(file_id)
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path = self._inventory.id2path(file_id)
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return self._hashcache.get_sha1(path, stat_value)
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def get_file_mtime(self, file_id, path=None):
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file_id = osutils.safe_file_id(file_id)
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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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file_id = osutils.safe_file_id(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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file_id = osutils.safe_file_id(file_id)
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path = self.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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@needs_tree_write_lock
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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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file_id = osutils.safe_file_id(file_id)
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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 errors.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, allow_leftmost_as_ghost=len(parents) > 1
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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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def _check_parents_for_ghosts(self, revision_ids, allow_leftmost_as_ghost):
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"""Common ghost checking functionality from set_parent_*.
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This checks that the left hand-parent exists if there are any
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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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def _set_merges_from_parent_ids(self, parent_ids):
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merges = parent_ids[1:]
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self._control_files.put_bytes('pending-merges', '\n'.join(merges))
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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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revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
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self._check_parents_for_ghosts(revision_ids,
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allow_leftmost_as_ghost=allow_leftmost_as_ghost)
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if len(revision_ids) > 0:
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self.set_last_revision(revision_ids[0])
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self.set_last_revision(None)
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self._set_merges_from_parent_ids(revision_ids)
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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_ids = [osutils.safe_revision_id(rev) for (rev, tree) in parents_list]
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self._check_parents_for_ghosts(parent_ids,
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allow_leftmost_as_ghost=allow_leftmost_as_ghost)
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if len(parent_ids) == 0:
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leftmost_parent_id = None
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leftmost_parent_tree = None
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leftmost_parent_id, leftmost_parent_tree = parents_list[0]
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if self._change_last_revision(leftmost_parent_id):
760
if leftmost_parent_tree is None:
761
# If we don't have a tree, fall back to reading the
762
# parent tree from the repository.
763
self._cache_basis_inventory(leftmost_parent_id)
765
inv = leftmost_parent_tree.inventory
766
xml = self._create_basis_xml_from_inventory(
767
leftmost_parent_id, inv)
768
self._write_basis_inventory(xml)
769
self._set_merges_from_parent_ids(parent_ids)
771
@needs_tree_write_lock
772
def set_pending_merges(self, rev_list):
773
parents = self.get_parent_ids()
774
leftmost = parents[:1]
775
new_parents = leftmost + rev_list
776
self.set_parent_ids(new_parents)
778
@needs_tree_write_lock
779
def set_merge_modified(self, modified_hashes):
781
for file_id, hash in modified_hashes.iteritems():
782
yield Stanza(file_id=file_id.decode('utf8'), hash=hash)
783
self._put_rio('merge-hashes', iter_stanzas(), MERGE_MODIFIED_HEADER_1)
785
def _put_rio(self, filename, stanzas, header):
786
self._must_be_locked()
787
my_file = rio_file(stanzas, header)
788
self._control_files.put(filename, my_file)
790
@needs_write_lock # because merge pulls data into the branch.
791
def merge_from_branch(self, branch, to_revision=None):
792
"""Merge from a branch into this working tree.
794
:param branch: The branch to merge from.
795
:param to_revision: If non-None, the merge will merge to to_revision,
796
but not beyond it. to_revision does not need to be in the history
797
of the branch when it is supplied. If None, to_revision defaults to
798
branch.last_revision().
800
from bzrlib.merge import Merger, Merge3Merger
801
pb = bzrlib.ui.ui_factory.nested_progress_bar()
803
merger = Merger(self.branch, this_tree=self, pb=pb)
804
merger.pp = ProgressPhase("Merge phase", 5, pb)
805
merger.pp.next_phase()
806
# check that there are no
808
merger.check_basis(check_clean=True, require_commits=False)
809
if to_revision is None:
810
to_revision = branch.last_revision()
812
to_revision = osutils.safe_revision_id(to_revision)
813
merger.other_rev_id = to_revision
814
if merger.other_rev_id is None:
815
raise errors.NoCommits(branch)
816
self.branch.fetch(branch, last_revision=merger.other_rev_id)
817
merger.other_basis = merger.other_rev_id
818
merger.other_tree = self.branch.repository.revision_tree(
820
merger.other_branch = branch
821
merger.pp.next_phase()
823
if merger.base_rev_id == merger.other_rev_id:
824
raise errors.PointlessMerge
825
merger.backup_files = False
826
merger.merge_type = Merge3Merger
827
merger.set_interesting_files(None)
828
merger.show_base = False
829
merger.reprocess = False
830
conflicts = merger.do_merge()
837
def merge_modified(self):
838
"""Return a dictionary of files modified by a merge.
840
The list is initialized by WorkingTree.set_merge_modified, which is
841
typically called after we make some automatic updates to the tree
844
This returns a map of file_id->sha1, containing only files which are
845
still in the working inventory and have that text hash.
848
hashfile = self._control_files.get('merge-hashes')
849
except errors.NoSuchFile:
853
if hashfile.next() != MERGE_MODIFIED_HEADER_1 + '\n':
854
raise errors.MergeModifiedFormatError()
855
except StopIteration:
856
raise errors.MergeModifiedFormatError()
857
for s in RioReader(hashfile):
858
# RioReader reads in Unicode, so convert file_ids back to utf8
859
file_id = osutils.safe_file_id(s.get("file_id"), warn=False)
860
if file_id not in self.inventory:
862
text_hash = s.get("hash")
863
if text_hash == self.get_file_sha1(file_id):
864
merge_hashes[file_id] = text_hash
868
def mkdir(self, path, file_id=None):
869
"""See MutableTree.mkdir()."""
871
file_id = generate_ids.gen_file_id(os.path.basename(path))
872
os.mkdir(self.abspath(path))
873
self.add(path, file_id, 'directory')
876
def get_symlink_target(self, file_id):
877
file_id = osutils.safe_file_id(file_id)
878
return os.readlink(self.id2abspath(file_id))
881
def subsume(self, other_tree):
882
def add_children(inventory, entry):
883
for child_entry in entry.children.values():
884
inventory._byid[child_entry.file_id] = child_entry
885
if child_entry.kind == 'directory':
886
add_children(inventory, child_entry)
887
if other_tree.get_root_id() == self.get_root_id():
888
raise errors.BadSubsumeSource(self, other_tree,
889
'Trees have the same root')
891
other_tree_path = self.relpath(other_tree.basedir)
892
except errors.PathNotChild:
893
raise errors.BadSubsumeSource(self, other_tree,
894
'Tree is not contained by the other')
895
new_root_parent = self.path2id(osutils.dirname(other_tree_path))
896
if new_root_parent is None:
897
raise errors.BadSubsumeSource(self, other_tree,
898
'Parent directory is not versioned.')
899
# We need to ensure that the result of a fetch will have a
900
# versionedfile for the other_tree root, and only fetching into
901
# RepositoryKnit2 guarantees that.
902
if not self.branch.repository.supports_rich_root():
903
raise errors.SubsumeTargetNeedsUpgrade(other_tree)
904
other_tree.lock_tree_write()
906
new_parents = other_tree.get_parent_ids()
907
other_root = other_tree.inventory.root
908
other_root.parent_id = new_root_parent
909
other_root.name = osutils.basename(other_tree_path)
910
self.inventory.add(other_root)
911
add_children(self.inventory, other_root)
912
self._write_inventory(self.inventory)
913
# normally we don't want to fetch whole repositories, but i think
914
# here we really do want to consolidate the whole thing.
915
for parent_id in other_tree.get_parent_ids():
916
self.branch.fetch(other_tree.branch, parent_id)
917
self.add_parent_tree_id(parent_id)
920
other_tree.bzrdir.retire_bzrdir()
922
@needs_tree_write_lock
923
def extract(self, file_id, format=None):
924
"""Extract a subtree from this tree.
926
A new branch will be created, relative to the path for this tree.
930
segments = osutils.splitpath(path)
931
transport = self.branch.bzrdir.root_transport
932
for name in segments:
933
transport = transport.clone(name)
934
transport.ensure_base()
937
sub_path = self.id2path(file_id)
938
branch_transport = mkdirs(sub_path)
940
format = bzrdir.format_registry.make_bzrdir('dirstate-with-subtree')
941
branch_transport.ensure_base()
942
branch_bzrdir = format.initialize_on_transport(branch_transport)
944
repo = branch_bzrdir.find_repository()
945
except errors.NoRepositoryPresent:
946
repo = branch_bzrdir.create_repository()
947
assert repo.supports_rich_root()
949
if not repo.supports_rich_root():
950
raise errors.RootNotRich()
951
new_branch = branch_bzrdir.create_branch()
952
new_branch.pull(self.branch)
953
for parent_id in self.get_parent_ids():
954
new_branch.fetch(self.branch, parent_id)
955
tree_transport = self.bzrdir.root_transport.clone(sub_path)
956
if tree_transport.base != branch_transport.base:
957
tree_bzrdir = format.initialize_on_transport(tree_transport)
958
branch.BranchReferenceFormat().initialize(tree_bzrdir, new_branch)
960
tree_bzrdir = branch_bzrdir
961
wt = tree_bzrdir.create_workingtree(NULL_REVISION)
962
wt.set_parent_ids(self.get_parent_ids())
963
my_inv = self.inventory
964
child_inv = Inventory(root_id=None)
965
new_root = my_inv[file_id]
966
my_inv.remove_recursive_id(file_id)
967
new_root.parent_id = None
968
child_inv.add(new_root)
969
self._write_inventory(my_inv)
970
wt._write_inventory(child_inv)
973
def _serialize(self, inventory, out_file):
974
xml5.serializer_v5.write_inventory(self._inventory, out_file)
976
def _deserialize(selt, in_file):
977
return xml5.serializer_v5.read_inventory(in_file)
980
"""Write the in memory inventory to disk."""
981
# TODO: Maybe this should only write on dirty ?
982
if self._control_files._lock_mode != 'w':
983
raise errors.NotWriteLocked(self)
985
self._serialize(self._inventory, sio)
987
self._control_files.put('inventory', sio)
988
self._inventory_is_modified = False
990
def _kind(self, relpath):
991
return osutils.file_kind(self.abspath(relpath))
993
def list_files(self, include_root=False):
994
"""Recursively list all files as (path, class, kind, id, entry).
996
Lists, but does not descend into unversioned directories.
998
This does not include files that have been deleted in this
1001
Skips the control directory.
1003
# list_files is an iterator, so @needs_read_lock doesn't work properly
1004
# with it. So callers should be careful to always read_lock the tree.
1005
if not self.is_locked():
1006
raise errors.ObjectNotLocked(self)
1008
inv = self.inventory
1009
if include_root is True:
1010
yield ('', 'V', 'directory', inv.root.file_id, inv.root)
1011
# Convert these into local objects to save lookup times
1012
pathjoin = osutils.pathjoin
1013
file_kind = self._kind
1015
# transport.base ends in a slash, we want the piece
1016
# between the last two slashes
1017
transport_base_dir = self.bzrdir.transport.base.rsplit('/', 2)[1]
1019
fk_entries = {'directory':TreeDirectory, 'file':TreeFile, 'symlink':TreeLink}
1021
# directory file_id, relative path, absolute path, reverse sorted children
1022
children = os.listdir(self.basedir)
1024
# jam 20060527 The kernel sized tree seems equivalent whether we
1025
# use a deque and popleft to keep them sorted, or if we use a plain
1026
# list and just reverse() them.
1027
children = collections.deque(children)
1028
stack = [(inv.root.file_id, u'', self.basedir, children)]
1030
from_dir_id, from_dir_relpath, from_dir_abspath, children = stack[-1]
1033
f = children.popleft()
1034
## TODO: If we find a subdirectory with its own .bzr
1035
## directory, then that is a separate tree and we
1036
## should exclude it.
1038
# the bzrdir for this tree
1039
if transport_base_dir == f:
1042
# we know that from_dir_relpath and from_dir_abspath never end in a slash
1043
# and 'f' doesn't begin with one, we can do a string op, rather
1044
# than the checks of pathjoin(), all relative paths will have an extra slash
1046
fp = from_dir_relpath + '/' + f
1049
fap = from_dir_abspath + '/' + f
1051
f_ie = inv.get_child(from_dir_id, f)
1054
elif self.is_ignored(fp[1:]):
1057
# we may not have found this file, because of a unicode issue
1058
f_norm, can_access = osutils.normalized_filename(f)
1059
if f == f_norm or not can_access:
1060
# No change, so treat this file normally
1063
# this file can be accessed by a normalized path
1064
# check again if it is versioned
1065
# these lines are repeated here for performance
1067
fp = from_dir_relpath + '/' + f
1068
fap = from_dir_abspath + '/' + f
1069
f_ie = inv.get_child(from_dir_id, f)
1072
elif self.is_ignored(fp[1:]):
1079
# make a last minute entry
1081
yield fp[1:], c, fk, f_ie.file_id, f_ie
1084
yield fp[1:], c, fk, None, fk_entries[fk]()
1086
yield fp[1:], c, fk, None, TreeEntry()
1089
if fk != 'directory':
1092
# But do this child first
1093
new_children = os.listdir(fap)
1095
new_children = collections.deque(new_children)
1096
stack.append((f_ie.file_id, fp, fap, new_children))
1097
# Break out of inner loop,
1098
# so that we start outer loop with child
1101
# if we finished all children, pop it off the stack
1104
@needs_tree_write_lock
1105
def move(self, from_paths, to_dir=None, after=False, **kwargs):
1108
to_dir must exist in the inventory.
1110
If to_dir exists and is a directory, the files are moved into
1111
it, keeping their old names.
1113
Note that to_dir is only the last component of the new name;
1114
this doesn't change the directory.
1116
For each entry in from_paths the move mode will be determined
1119
The first mode moves the file in the filesystem and updates the
1120
inventory. The second mode only updates the inventory without
1121
touching the file on the filesystem. This is the new mode introduced
1124
move uses the second mode if 'after == True' and the target is not
1125
versioned but present in the working tree.
1127
move uses the second mode if 'after == False' and the source is
1128
versioned but no longer in the working tree, and the target is not
1129
versioned but present in the working tree.
1131
move uses the first mode if 'after == False' and the source is
1132
versioned and present in the working tree, and the target is not
1133
versioned and not present in the working tree.
1135
Everything else results in an error.
1137
This returns a list of (from_path, to_path) pairs for each
1138
entry that is moved.
1143
# check for deprecated use of signature
1145
to_dir = kwargs.get('to_name', None)
1147
raise TypeError('You must supply a target directory')
1149
symbol_versioning.warn('The parameter to_name was deprecated'
1150
' in version 0.13. Use to_dir instead',
1153
# check destination directory
1154
assert not isinstance(from_paths, basestring)
1155
inv = self.inventory
1156
to_abs = self.abspath(to_dir)
1157
if not isdir(to_abs):
1158
raise errors.BzrMoveFailedError('',to_dir,
1159
errors.NotADirectory(to_abs))
1160
if not self.has_filename(to_dir):
1161
raise errors.BzrMoveFailedError('',to_dir,
1162
errors.NotInWorkingDirectory(to_dir))
1163
to_dir_id = inv.path2id(to_dir)
1164
if to_dir_id is None:
1165
raise errors.BzrMoveFailedError('',to_dir,
1166
errors.NotVersionedError(path=str(to_dir)))
1168
to_dir_ie = inv[to_dir_id]
1169
if to_dir_ie.kind != 'directory':
1170
raise errors.BzrMoveFailedError('',to_dir,
1171
errors.NotADirectory(to_abs))
1173
# create rename entries and tuples
1174
for from_rel in from_paths:
1175
from_tail = splitpath(from_rel)[-1]
1176
from_id = inv.path2id(from_rel)
1178
raise errors.BzrMoveFailedError(from_rel,to_dir,
1179
errors.NotVersionedError(path=str(from_rel)))
1181
from_entry = inv[from_id]
1182
from_parent_id = from_entry.parent_id
1183
to_rel = pathjoin(to_dir, from_tail)
1184
rename_entry = WorkingTree._RenameEntry(from_rel=from_rel,
1186
from_tail=from_tail,
1187
from_parent_id=from_parent_id,
1188
to_rel=to_rel, to_tail=from_tail,
1189
to_parent_id=to_dir_id)
1190
rename_entries.append(rename_entry)
1191
rename_tuples.append((from_rel, to_rel))
1193
# determine which move mode to use. checks also for movability
1194
rename_entries = self._determine_mv_mode(rename_entries, after)
1196
original_modified = self._inventory_is_modified
1199
self._inventory_is_modified = True
1200
self._move(rename_entries)
1202
# restore the inventory on error
1203
self._inventory_is_modified = original_modified
1205
self._write_inventory(inv)
1206
return rename_tuples
1208
def _determine_mv_mode(self, rename_entries, after=False):
1209
"""Determines for each from-to pair if both inventory and working tree
1210
or only the inventory has to be changed.
1212
Also does basic plausability tests.
1214
inv = self.inventory
1216
for rename_entry in rename_entries:
1217
# store to local variables for easier reference
1218
from_rel = rename_entry.from_rel
1219
from_id = rename_entry.from_id
1220
to_rel = rename_entry.to_rel
1221
to_id = inv.path2id(to_rel)
1222
only_change_inv = False
1224
# check the inventory for source and destination
1226
raise errors.BzrMoveFailedError(from_rel,to_rel,
1227
errors.NotVersionedError(path=str(from_rel)))
1228
if to_id is not None:
1229
raise errors.BzrMoveFailedError(from_rel,to_rel,
1230
errors.AlreadyVersionedError(path=str(to_rel)))
1232
# try to determine the mode for rename (only change inv or change
1233
# inv and file system)
1235
if not self.has_filename(to_rel):
1236
raise errors.BzrMoveFailedError(from_id,to_rel,
1237
errors.NoSuchFile(path=str(to_rel),
1238
extra="New file has not been created yet"))
1239
only_change_inv = True
1240
elif not self.has_filename(from_rel) and self.has_filename(to_rel):
1241
only_change_inv = True
1242
elif self.has_filename(from_rel) and not self.has_filename(to_rel):
1243
only_change_inv = False
1245
# something is wrong, so lets determine what exactly
1246
if not self.has_filename(from_rel) and \
1247
not self.has_filename(to_rel):
1248
raise errors.BzrRenameFailedError(from_rel,to_rel,
1249
errors.PathsDoNotExist(paths=(str(from_rel),
1252
raise errors.RenameFailedFilesExist(from_rel, to_rel,
1253
extra="(Use --after to update the Bazaar id)")
1254
rename_entry.only_change_inv = only_change_inv
1255
return rename_entries
1257
def _move(self, rename_entries):
1258
"""Moves a list of files.
1260
Depending on the value of the flag 'only_change_inv', the
1261
file will be moved on the file system or not.
1263
inv = self.inventory
1266
for entry in rename_entries:
1268
self._move_entry(entry)
1270
self._rollback_move(moved)
1274
def _rollback_move(self, moved):
1275
"""Try to rollback a previous move in case of an filesystem error."""
1276
inv = self.inventory
1279
self._move_entry(_RenameEntry(entry.to_rel, entry.from_id,
1280
entry.to_tail, entry.to_parent_id, entry.from_rel,
1281
entry.from_tail, entry.from_parent_id,
1282
entry.only_change_inv))
1283
except errors.BzrMoveFailedError, e:
1284
raise errors.BzrMoveFailedError( '', '', "Rollback failed."
1285
" The working tree is in an inconsistent state."
1286
" Please consider doing a 'bzr revert'."
1287
" Error message is: %s" % e)
1289
def _move_entry(self, entry):
1290
inv = self.inventory
1291
from_rel_abs = self.abspath(entry.from_rel)
1292
to_rel_abs = self.abspath(entry.to_rel)
1293
if from_rel_abs == to_rel_abs:
1294
raise errors.BzrMoveFailedError(entry.from_rel, entry.to_rel,
1295
"Source and target are identical.")
1297
if not entry.only_change_inv:
1299
osutils.rename(from_rel_abs, to_rel_abs)
1301
raise errors.BzrMoveFailedError(entry.from_rel,
1303
inv.rename(entry.from_id, entry.to_parent_id, entry.to_tail)
1305
@needs_tree_write_lock
1306
def rename_one(self, from_rel, to_rel, after=False):
1309
This can change the directory or the filename or both.
1311
rename_one has several 'modes' to work. First, it can rename a physical
1312
file and change the file_id. That is the normal mode. Second, it can
1313
only change the file_id without touching any physical file. This is
1314
the new mode introduced in version 0.15.
1316
rename_one uses the second mode if 'after == True' and 'to_rel' is not
1317
versioned but present in the working tree.
1319
rename_one uses the second mode if 'after == False' and 'from_rel' is
1320
versioned but no longer in the working tree, and 'to_rel' is not
1321
versioned but present in the working tree.
1323
rename_one uses the first mode if 'after == False' and 'from_rel' is
1324
versioned and present in the working tree, and 'to_rel' is not
1325
versioned and not present in the working tree.
1327
Everything else results in an error.
1329
inv = self.inventory
1332
# create rename entries and tuples
1333
from_tail = splitpath(from_rel)[-1]
1334
from_id = inv.path2id(from_rel)
1336
raise errors.BzrRenameFailedError(from_rel,to_rel,
1337
errors.NotVersionedError(path=str(from_rel)))
1338
from_entry = inv[from_id]
1339
from_parent_id = from_entry.parent_id
1340
to_dir, to_tail = os.path.split(to_rel)
1341
to_dir_id = inv.path2id(to_dir)
1342
rename_entry = WorkingTree._RenameEntry(from_rel=from_rel,
1344
from_tail=from_tail,
1345
from_parent_id=from_parent_id,
1346
to_rel=to_rel, to_tail=to_tail,
1347
to_parent_id=to_dir_id)
1348
rename_entries.append(rename_entry)
1350
# determine which move mode to use. checks also for movability
1351
rename_entries = self._determine_mv_mode(rename_entries, after)
1353
# check if the target changed directory and if the target directory is
1355
if to_dir_id is None:
1356
raise errors.BzrMoveFailedError(from_rel,to_rel,
1357
errors.NotVersionedError(path=str(to_dir)))
1359
# all checks done. now we can continue with our actual work
1360
mutter('rename_one:\n'
1365
' to_dir_id {%s}\n',
1366
from_id, from_rel, to_rel, to_dir, to_dir_id)
1368
self._move(rename_entries)
1369
self._write_inventory(inv)
1371
class _RenameEntry(object):
1372
def __init__(self, from_rel, from_id, from_tail, from_parent_id,
1373
to_rel, to_tail, to_parent_id, only_change_inv=False):
1374
self.from_rel = from_rel
1375
self.from_id = from_id
1376
self.from_tail = from_tail
1377
self.from_parent_id = from_parent_id
1378
self.to_rel = to_rel
1379
self.to_tail = to_tail
1380
self.to_parent_id = to_parent_id
1381
self.only_change_inv = only_change_inv
1385
"""Return all unknown files.
1387
These are files in the working directory that are not versioned or
1388
control files or ignored.
1390
# force the extras method to be fully executed before returning, to
1391
# prevent race conditions with the lock
1393
[subp for subp in self.extras() if not self.is_ignored(subp)])
1395
@needs_tree_write_lock
1396
def unversion(self, file_ids):
1397
"""Remove the file ids in file_ids from the current versioned set.
1399
When a file_id is unversioned, all of its children are automatically
1402
:param file_ids: The file ids to stop versioning.
1403
:raises: NoSuchId if any fileid is not currently versioned.
1405
for file_id in file_ids:
1406
file_id = osutils.safe_file_id(file_id)
1407
if self._inventory.has_id(file_id):
1408
self._inventory.remove_recursive_id(file_id)
1410
raise errors.NoSuchId(self, file_id)
1412
# in the future this should just set a dirty bit to wait for the
1413
# final unlock. However, until all methods of workingtree start
1414
# with the current in -memory inventory rather than triggering
1415
# a read, it is more complex - we need to teach read_inventory
1416
# to know when to read, and when to not read first... and possibly
1417
# to save first when the in memory one may be corrupted.
1418
# so for now, we just only write it if it is indeed dirty.
1420
self._write_inventory(self._inventory)
1422
@deprecated_method(zero_eight)
1423
def iter_conflicts(self):
1424
"""List all files in the tree that have text or content conflicts.
1425
DEPRECATED. Use conflicts instead."""
1426
return self._iter_conflicts()
1428
def _iter_conflicts(self):
1430
for info in self.list_files():
1432
stem = get_conflicted_stem(path)
1435
if stem not in conflicted:
1436
conflicted.add(stem)
1440
def pull(self, source, overwrite=False, stop_revision=None,
1441
change_reporter=None):
1442
top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1445
pp = ProgressPhase("Pull phase", 2, top_pb)
1447
old_revision_info = self.branch.last_revision_info()
1448
basis_tree = self.basis_tree()
1449
count = self.branch.pull(source, overwrite, stop_revision)
1450
new_revision_info = self.branch.last_revision_info()
1451
if new_revision_info != old_revision_info:
1453
repository = self.branch.repository
1454
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1455
basis_tree.lock_read()
1457
new_basis_tree = self.branch.basis_tree()
1464
change_reporter=change_reporter)
1465
if (basis_tree.inventory.root is None and
1466
new_basis_tree.inventory.root is not None):
1467
self.set_root_id(new_basis_tree.inventory.root.file_id)
1471
# TODO - dedup parents list with things merged by pull ?
1472
# reuse the revisiontree we merged against to set the new
1474
parent_trees = [(self.branch.last_revision(), new_basis_tree)]
1475
# we have to pull the merge trees out again, because
1476
# merge_inner has set the ids. - this corner is not yet
1477
# layered well enough to prevent double handling.
1478
# XXX TODO: Fix the double handling: telling the tree about
1479
# the already known parent data is wasteful.
1480
merges = self.get_parent_ids()[1:]
1481
parent_trees.extend([
1482
(parent, repository.revision_tree(parent)) for
1484
self.set_parent_trees(parent_trees)
1491
def put_file_bytes_non_atomic(self, file_id, bytes):
1492
"""See MutableTree.put_file_bytes_non_atomic."""
1493
file_id = osutils.safe_file_id(file_id)
1494
stream = file(self.id2abspath(file_id), 'wb')
1499
# TODO: update the hashcache here ?
1502
"""Yield all unversioned files in this WorkingTree.
1504
If there are any unversioned directories then only the directory is
1505
returned, not all its children. But if there are unversioned files
1506
under a versioned subdirectory, they are returned.
1508
Currently returned depth-first, sorted by name within directories.
1509
This is the same order used by 'osutils.walkdirs'.
1511
## TODO: Work from given directory downwards
1512
for path, dir_entry in self.inventory.directories():
1513
# mutter("search for unknowns in %r", path)
1514
dirabs = self.abspath(path)
1515
if not isdir(dirabs):
1516
# e.g. directory deleted
1520
for subf in os.listdir(dirabs):
1523
if subf not in dir_entry.children:
1524
subf_norm, can_access = osutils.normalized_filename(subf)
1525
if subf_norm != subf and can_access:
1526
if subf_norm not in dir_entry.children:
1527
fl.append(subf_norm)
1533
subp = pathjoin(path, subf)
1536
def ignored_files(self):
1537
"""Yield list of PATH, IGNORE_PATTERN"""
1538
for subp in self.extras():
1539
pat = self.is_ignored(subp)
1543
def get_ignore_list(self):
1544
"""Return list of ignore patterns.
1546
Cached in the Tree object after the first call.
1548
ignoreset = getattr(self, '_ignoreset', None)
1549
if ignoreset is not None:
1552
ignore_globs = set(bzrlib.DEFAULT_IGNORE)
1553
ignore_globs.update(ignores.get_runtime_ignores())
1554
ignore_globs.update(ignores.get_user_ignores())
1555
if self.has_filename(bzrlib.IGNORE_FILENAME):
1556
f = self.get_file_byname(bzrlib.IGNORE_FILENAME)
1558
ignore_globs.update(ignores.parse_ignore_file(f))
1561
self._ignoreset = ignore_globs
1564
def _flush_ignore_list_cache(self):
1565
"""Resets the cached ignore list to force a cache rebuild."""
1566
self._ignoreset = None
1567
self._ignoreglobster = None
1569
def is_ignored(self, filename):
1570
r"""Check whether the filename matches an ignore pattern.
1572
Patterns containing '/' or '\' need to match the whole path;
1573
others match against only the last component.
1575
If the file is ignored, returns the pattern which caused it to
1576
be ignored, otherwise None. So this can simply be used as a
1577
boolean if desired."""
1578
if getattr(self, '_ignoreglobster', None) is None:
1579
self._ignoreglobster = globbing.Globster(self.get_ignore_list())
1580
return self._ignoreglobster.match(filename)
1582
def kind(self, file_id):
1583
return file_kind(self.id2abspath(file_id))
1585
def _comparison_data(self, entry, path):
1586
abspath = self.abspath(path)
1588
stat_value = os.lstat(abspath)
1590
if getattr(e, 'errno', None) == errno.ENOENT:
1597
mode = stat_value.st_mode
1598
kind = osutils.file_kind_from_stat_mode(mode)
1599
if not supports_executable():
1600
executable = entry is not None and entry.executable
1602
executable = bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
1603
return kind, executable, stat_value
1605
def _file_size(self, entry, stat_value):
1606
return stat_value.st_size
1608
def last_revision(self):
1609
"""Return the last revision of the branch for this tree.
1611
This format tree does not support a separate marker for last-revision
1612
compared to the branch.
1614
See MutableTree.last_revision
1616
return self._last_revision()
1619
def _last_revision(self):
1620
"""helper for get_parent_ids."""
1621
return self.branch.last_revision()
1623
def is_locked(self):
1624
return self._control_files.is_locked()
1626
def _must_be_locked(self):
1627
if not self.is_locked():
1628
raise errors.ObjectNotLocked(self)
1630
def lock_read(self):
1631
"""See Branch.lock_read, and WorkingTree.unlock."""
1632
if not self.is_locked():
1634
self.branch.lock_read()
1636
return self._control_files.lock_read()
1638
self.branch.unlock()
1641
def lock_tree_write(self):
1642
"""See MutableTree.lock_tree_write, and WorkingTree.unlock."""
1643
if not self.is_locked():
1645
self.branch.lock_read()
1647
return self._control_files.lock_write()
1649
self.branch.unlock()
1652
def lock_write(self):
1653
"""See MutableTree.lock_write, and WorkingTree.unlock."""
1654
if not self.is_locked():
1656
self.branch.lock_write()
1658
return self._control_files.lock_write()
1660
self.branch.unlock()
1663
def get_physical_lock_status(self):
1664
return self._control_files.get_physical_lock_status()
1666
def _basis_inventory_name(self):
1667
return 'basis-inventory-cache'
1669
def _reset_data(self):
1670
"""Reset transient data that cannot be revalidated."""
1671
self._inventory_is_modified = False
1672
result = self._deserialize(self._control_files.get('inventory'))
1673
self._set_inventory(result, dirty=False)
1675
@needs_tree_write_lock
1676
def set_last_revision(self, new_revision):
1677
"""Change the last revision in the working tree."""
1678
new_revision = osutils.safe_revision_id(new_revision)
1679
if self._change_last_revision(new_revision):
1680
self._cache_basis_inventory(new_revision)
1682
def _change_last_revision(self, new_revision):
1683
"""Template method part of set_last_revision to perform the change.
1685
This is used to allow WorkingTree3 instances to not affect branch
1686
when their last revision is set.
1688
if new_revision is None:
1689
self.branch.set_revision_history([])
1692
self.branch.generate_revision_history(new_revision)
1693
except errors.NoSuchRevision:
1694
# not present in the repo - dont try to set it deeper than the tip
1695
self.branch.set_revision_history([new_revision])
1698
def _write_basis_inventory(self, xml):
1699
"""Write the basis inventory XML to the basis-inventory file"""
1700
assert isinstance(xml, str), 'serialised xml must be bytestring.'
1701
path = self._basis_inventory_name()
1703
self._control_files.put(path, sio)
1705
def _create_basis_xml_from_inventory(self, revision_id, inventory):
1706
"""Create the text that will be saved in basis-inventory"""
1707
# TODO: jam 20070209 This should be redundant, as the revision_id
1708
# as all callers should have already converted the revision_id to
1710
inventory.revision_id = osutils.safe_revision_id(revision_id)
1711
return xml7.serializer_v7.write_inventory_to_string(inventory)
1713
def _cache_basis_inventory(self, new_revision):
1714
"""Cache new_revision as the basis inventory."""
1715
# TODO: this should allow the ready-to-use inventory to be passed in,
1716
# as commit already has that ready-to-use [while the format is the
1719
# this double handles the inventory - unpack and repack -
1720
# but is easier to understand. We can/should put a conditional
1721
# in here based on whether the inventory is in the latest format
1722
# - perhaps we should repack all inventories on a repository
1724
# the fast path is to copy the raw xml from the repository. If the
1725
# xml contains 'revision_id="', then we assume the right
1726
# revision_id is set. We must check for this full string, because a
1727
# root node id can legitimately look like 'revision_id' but cannot
1729
xml = self.branch.repository.get_inventory_xml(new_revision)
1730
firstline = xml.split('\n', 1)[0]
1731
if (not 'revision_id="' in firstline or
1732
'format="7"' not in firstline):
1733
inv = self.branch.repository.deserialise_inventory(
1735
xml = self._create_basis_xml_from_inventory(new_revision, inv)
1736
self._write_basis_inventory(xml)
1737
except (errors.NoSuchRevision, errors.RevisionNotPresent):
1740
def read_basis_inventory(self):
1741
"""Read the cached basis inventory."""
1742
path = self._basis_inventory_name()
1743
return self._control_files.get(path).read()
1746
def read_working_inventory(self):
1747
"""Read the working inventory.
1749
:raises errors.InventoryModified: read_working_inventory will fail
1750
when the current in memory inventory has been modified.
1752
# conceptually this should be an implementation detail of the tree.
1753
# XXX: Deprecate this.
1754
# ElementTree does its own conversion from UTF-8, so open in
1756
if self._inventory_is_modified:
1757
raise errors.InventoryModified(self)
1758
result = self._deserialize(self._control_files.get('inventory'))
1759
self._set_inventory(result, dirty=False)
1762
@needs_tree_write_lock
1763
def remove(self, files, verbose=False, to_file=None, keep_files=True,
1765
"""Remove nominated files from the working inventor.
1767
:files: File paths relative to the basedir.
1768
:keep_files: If true, the files will also be kept.
1769
:force: Delete files and directories, even if they are changed and
1770
even if the directories are not empty.
1772
## TODO: Normalize names
1774
if isinstance(files, basestring):
1780
unknown_files_in_directory=set()
1782
def recurse_directory_to_add_files(directory):
1783
# recurse directory and add all files
1784
# so we can check if they have changed.
1785
for parent_info, file_infos in\
1786
osutils.walkdirs(self.abspath(directory),
1788
for relpath, basename, kind, lstat, abspath in file_infos:
1790
if self.path2id(relpath): #is it versioned?
1791
new_files.add(relpath)
1793
unknown_files_in_directory.add(
1794
(relpath, None, kind))
1796
for filename in files:
1797
# Get file name into canonical form.
1798
abspath = self.abspath(filename)
1799
filename = self.relpath(abspath)
1800
if len(filename) > 0:
1801
new_files.add(filename)
1802
if osutils.isdir(abspath):
1803
recurse_directory_to_add_files(filename)
1804
files = [f for f in new_files]
1806
# Sort needed to first handle directory content before the directory
1807
files.sort(reverse=True)
1808
if not keep_files and not force:
1809
tree_delta = self.changes_from(self.basis_tree(),
1810
specific_files=files)
1811
for unknown_file in unknown_files_in_directory:
1812
tree_delta.unversioned.extend((unknown_file,))
1813
if bool(tree_delta.modified
1815
or tree_delta.renamed
1816
or tree_delta.kind_changed
1817
or tree_delta.unversioned):
1818
raise errors.BzrRemoveChangedFilesError(tree_delta)
1820
# do this before any modifications
1822
fid = self.path2id(f)
1825
message="%s is not versioned." % (f,)
1828
# having removed it, it must be either ignored or unknown
1829
if self.is_ignored(f):
1833
textui.show_status(new_status, self.kind(fid), f,
1836
inv_delta.append((f, None, fid, None))
1837
message="removed %s" % (f,)
1840
abs_path = self.abspath(f)
1841
if osutils.lexists(abs_path):
1842
if (osutils.isdir(abs_path) and
1843
len(os.listdir(abs_path)) > 0):
1844
message="%s is not empty directory "\
1845
"and won't be deleted." % (f,)
1847
osutils.delete_any(abs_path)
1848
message="deleted %s" % (f,)
1849
elif message is not None:
1850
# only care if we haven't done anything yet.
1851
message="%s does not exist." % (f,)
1853
# print only one message (if any) per file.
1854
if message is not None:
1856
self.apply_inventory_delta(inv_delta)
1858
@needs_tree_write_lock
1859
def revert(self, filenames, old_tree=None, backups=True,
1860
pb=DummyProgress(), report_changes=False):
1861
from bzrlib.conflicts import resolve
1862
if old_tree is None:
1863
old_tree = self.basis_tree()
1864
conflicts = transform.revert(self, old_tree, filenames, backups, pb,
1866
if not len(filenames):
1867
self.set_parent_ids(self.get_parent_ids()[:1])
1870
resolve(self, filenames, ignore_misses=True)
1873
def revision_tree(self, revision_id):
1874
"""See Tree.revision_tree.
1876
WorkingTree can supply revision_trees for the basis revision only
1877
because there is only one cached inventory in the bzr directory.
1879
if revision_id == self.last_revision():
1881
xml = self.read_basis_inventory()
1882
except errors.NoSuchFile:
1886
inv = xml7.serializer_v7.read_inventory_from_string(xml)
1887
# dont use the repository revision_tree api because we want
1888
# to supply the inventory.
1889
if inv.revision_id == revision_id:
1890
return revisiontree.RevisionTree(self.branch.repository,
1892
except errors.BadInventoryFormat:
1894
# raise if there was no inventory, or if we read the wrong inventory.
1895
raise errors.NoSuchRevisionInTree(self, revision_id)
1897
# XXX: This method should be deprecated in favour of taking in a proper
1898
# new Inventory object.
1899
@needs_tree_write_lock
1900
def set_inventory(self, new_inventory_list):
1901
from bzrlib.inventory import (Inventory,
1906
inv = Inventory(self.get_root_id())
1907
for path, file_id, parent, kind in new_inventory_list:
1908
name = os.path.basename(path)
1911
# fixme, there should be a factory function inv,add_??
1912
if kind == 'directory':
1913
inv.add(InventoryDirectory(file_id, name, parent))
1914
elif kind == 'file':
1915
inv.add(InventoryFile(file_id, name, parent))
1916
elif kind == 'symlink':
1917
inv.add(InventoryLink(file_id, name, parent))
1919
raise errors.BzrError("unknown kind %r" % kind)
1920
self._write_inventory(inv)
1922
@needs_tree_write_lock
1923
def set_root_id(self, file_id):
1924
"""Set the root id for this tree."""
1927
symbol_versioning.warn(symbol_versioning.zero_twelve
1928
% 'WorkingTree.set_root_id with fileid=None',
1933
file_id = osutils.safe_file_id(file_id)
1934
self._set_root_id(file_id)
1936
def _set_root_id(self, file_id):
1937
"""Set the root id for this tree, in a format specific manner.
1939
:param file_id: The file id to assign to the root. It must not be
1940
present in the current inventory or an error will occur. It must
1941
not be None, but rather a valid file id.
1943
inv = self._inventory
1944
orig_root_id = inv.root.file_id
1945
# TODO: it might be nice to exit early if there was nothing
1946
# to do, saving us from trigger a sync on unlock.
1947
self._inventory_is_modified = True
1948
# we preserve the root inventory entry object, but
1949
# unlinkit from the byid index
1950
del inv._byid[inv.root.file_id]
1951
inv.root.file_id = file_id
1952
# and link it into the index with the new changed id.
1953
inv._byid[inv.root.file_id] = inv.root
1954
# and finally update all children to reference the new id.
1955
# XXX: this should be safe to just look at the root.children
1956
# list, not the WHOLE INVENTORY.
1959
if entry.parent_id == orig_root_id:
1960
entry.parent_id = inv.root.file_id
1963
"""See Branch.unlock.
1965
WorkingTree locking just uses the Branch locking facilities.
1966
This is current because all working trees have an embedded branch
1967
within them. IF in the future, we were to make branch data shareable
1968
between multiple working trees, i.e. via shared storage, then we
1969
would probably want to lock both the local tree, and the branch.
1971
raise NotImplementedError(self.unlock)
1974
"""Update a working tree along its branch.
1976
This will update the branch if its bound too, which means we have
1977
multiple trees involved:
1979
- The new basis tree of the master.
1980
- The old basis tree of the branch.
1981
- The old basis tree of the working tree.
1982
- The current working tree state.
1984
Pathologically, all three may be different, and non-ancestors of each
1985
other. Conceptually we want to:
1987
- Preserve the wt.basis->wt.state changes
1988
- Transform the wt.basis to the new master basis.
1989
- Apply a merge of the old branch basis to get any 'local' changes from
1991
- Restore the wt.basis->wt.state changes.
1993
There isn't a single operation at the moment to do that, so we:
1994
- Merge current state -> basis tree of the master w.r.t. the old tree
1996
- Do a 'normal' merge of the old branch basis if it is relevant.
1998
if self.branch.get_master_branch() is not None:
2000
update_branch = True
2002
self.lock_tree_write()
2003
update_branch = False
2006
old_tip = self.branch.update()
2009
return self._update_tree(old_tip)
2013
@needs_tree_write_lock
2014
def _update_tree(self, old_tip=None):
2015
"""Update a tree to the master branch.
2017
:param old_tip: if supplied, the previous tip revision the branch,
2018
before it was changed to the master branch's tip.
2020
# here if old_tip is not None, it is the old tip of the branch before
2021
# it was updated from the master branch. This should become a pending
2022
# merge in the working tree to preserve the user existing work. we
2023
# cant set that until we update the working trees last revision to be
2024
# one from the new branch, because it will just get absorbed by the
2025
# parent de-duplication logic.
2027
# We MUST save it even if an error occurs, because otherwise the users
2028
# local work is unreferenced and will appear to have been lost.
2032
last_rev = self.get_parent_ids()[0]
2035
if last_rev != self.branch.last_revision():
2036
# merge tree state up to new branch tip.
2037
basis = self.basis_tree()
2040
to_tree = self.branch.basis_tree()
2041
if basis.inventory.root is None:
2042
self.set_root_id(to_tree.inventory.root.file_id)
2044
result += merge.merge_inner(
2051
# TODO - dedup parents list with things merged by pull ?
2052
# reuse the tree we've updated to to set the basis:
2053
parent_trees = [(self.branch.last_revision(), to_tree)]
2054
merges = self.get_parent_ids()[1:]
2055
# Ideally we ask the tree for the trees here, that way the working
2056
# tree can decide whether to give us teh entire tree or give us a
2057
# lazy initialised tree. dirstate for instance will have the trees
2058
# in ram already, whereas a last-revision + basis-inventory tree
2059
# will not, but also does not need them when setting parents.
2060
for parent in merges:
2061
parent_trees.append(
2062
(parent, self.branch.repository.revision_tree(parent)))
2063
if old_tip is not None:
2064
parent_trees.append(
2065
(old_tip, self.branch.repository.revision_tree(old_tip)))
2066
self.set_parent_trees(parent_trees)
2067
last_rev = parent_trees[0][0]
2069
# the working tree had the same last-revision as the master
2070
# branch did. We may still have pivot local work from the local
2071
# branch into old_tip:
2072
if old_tip is not None:
2073
self.add_parent_tree_id(old_tip)
2074
if old_tip and old_tip != last_rev:
2075
# our last revision was not the prior branch last revision
2076
# and we have converted that last revision to a pending merge.
2077
# base is somewhere between the branch tip now
2078
# and the now pending merge
2080
# Since we just modified the working tree and inventory, flush out
2081
# the current state, before we modify it again.
2082
# TODO: jam 20070214 WorkingTree3 doesn't require this, dirstate
2083
# requires it only because TreeTransform directly munges the
2084
# inventory and calls tree._write_inventory(). Ultimately we
2085
# should be able to remove this extra flush.
2087
graph = self.branch.repository.get_graph()
2088
base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2090
base_tree = self.branch.repository.revision_tree(base_rev_id)
2091
other_tree = self.branch.repository.revision_tree(old_tip)
2092
result += merge.merge_inner(
2099
def _write_hashcache_if_dirty(self):
2100
"""Write out the hashcache if it is dirty."""
2101
if self._hashcache.needs_write:
2103
self._hashcache.write()
2105
if e.errno not in (errno.EPERM, errno.EACCES):
2107
# TODO: jam 20061219 Should this be a warning? A single line
2108
# warning might be sufficient to let the user know what
2110
mutter('Could not write hashcache for %s\nError: %s',
2111
self._hashcache.cache_file_name(), e)
2113
@needs_tree_write_lock
2114
def _write_inventory(self, inv):
2115
"""Write inventory as the current inventory."""
2116
self._set_inventory(inv, dirty=True)
2119
def set_conflicts(self, arg):
2120
raise errors.UnsupportedOperation(self.set_conflicts, self)
2122
def add_conflicts(self, arg):
2123
raise errors.UnsupportedOperation(self.add_conflicts, self)
2126
def conflicts(self):
2127
conflicts = _mod_conflicts.ConflictList()
2128
for conflicted in self._iter_conflicts():
2131
if file_kind(self.abspath(conflicted)) != "file":
2133
except errors.NoSuchFile:
2136
for suffix in ('.THIS', '.OTHER'):
2138
kind = file_kind(self.abspath(conflicted+suffix))
2141
except errors.NoSuchFile:
2145
ctype = {True: 'text conflict', False: 'contents conflict'}[text]
2146
conflicts.append(_mod_conflicts.Conflict.factory(ctype,
2148
file_id=self.path2id(conflicted)))
2151
def walkdirs(self, prefix=""):
2152
"""Walk the directories of this tree.
2154
returns a generator which yields items in the form:
2155
((curren_directory_path, fileid),
2156
[(file1_path, file1_name, file1_kind, (lstat), file1_id,
2159
This API returns a generator, which is only valid during the current
2160
tree transaction - within a single lock_read or lock_write duration.
2162
If the tree is not locked, it may cause an error to be raised,
2163
depending on the tree implementation.
2165
disk_top = self.abspath(prefix)
2166
if disk_top.endswith('/'):
2167
disk_top = disk_top[:-1]
2168
top_strip_len = len(disk_top) + 1
2169
inventory_iterator = self._walkdirs(prefix)
2170
disk_iterator = osutils.walkdirs(disk_top, prefix)
2172
current_disk = disk_iterator.next()
2173
disk_finished = False
2175
if not (e.errno == errno.ENOENT or
2176
(sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
2179
disk_finished = True
2181
current_inv = inventory_iterator.next()
2182
inv_finished = False
2183
except StopIteration:
2186
while not inv_finished or not disk_finished:
2187
if not disk_finished:
2188
# strip out .bzr dirs
2189
if current_disk[0][1][top_strip_len:] == '':
2190
# osutils.walkdirs can be made nicer -
2191
# yield the path-from-prefix rather than the pathjoined
2193
bzrdir_loc = bisect_left(current_disk[1], ('.bzr', '.bzr'))
2194
if current_disk[1][bzrdir_loc][0] == '.bzr':
2195
# we dont yield the contents of, or, .bzr itself.
2196
del current_disk[1][bzrdir_loc]
2198
# everything is unknown
2201
# everything is missing
2204
direction = cmp(current_inv[0][0], current_disk[0][0])
2206
# disk is before inventory - unknown
2207
dirblock = [(relpath, basename, kind, stat, None, None) for
2208
relpath, basename, kind, stat, top_path in current_disk[1]]
2209
yield (current_disk[0][0], None), dirblock
2211
current_disk = disk_iterator.next()
2212
except StopIteration:
2213
disk_finished = True
2215
# inventory is before disk - missing.
2216
dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
2217
for relpath, basename, dkind, stat, fileid, kind in
2219
yield (current_inv[0][0], current_inv[0][1]), dirblock
2221
current_inv = inventory_iterator.next()
2222
except StopIteration:
2225
# versioned present directory
2226
# merge the inventory and disk data together
2228
for relpath, subiterator in itertools.groupby(sorted(
2229
current_inv[1] + current_disk[1], key=operator.itemgetter(0)), operator.itemgetter(1)):
2230
path_elements = list(subiterator)
2231
if len(path_elements) == 2:
2232
inv_row, disk_row = path_elements
2233
# versioned, present file
2234
dirblock.append((inv_row[0],
2235
inv_row[1], disk_row[2],
2236
disk_row[3], inv_row[4],
2238
elif len(path_elements[0]) == 5:
2240
dirblock.append((path_elements[0][0],
2241
path_elements[0][1], path_elements[0][2],
2242
path_elements[0][3], None, None))
2243
elif len(path_elements[0]) == 6:
2244
# versioned, absent file.
2245
dirblock.append((path_elements[0][0],
2246
path_elements[0][1], 'unknown', None,
2247
path_elements[0][4], path_elements[0][5]))
2249
raise NotImplementedError('unreachable code')
2250
yield current_inv[0], dirblock
2252
current_inv = inventory_iterator.next()
2253
except StopIteration:
2256
current_disk = disk_iterator.next()
2257
except StopIteration:
2258
disk_finished = True
2260
def _walkdirs(self, prefix=""):
2261
"""Walk the directories of this tree.
2263
:prefix: is used as the directrory to start with.
2264
returns a generator which yields items in the form:
2265
((curren_directory_path, fileid),
2266
[(file1_path, file1_name, file1_kind, None, file1_id,
2269
_directory = 'directory'
2270
# get the root in the inventory
2271
inv = self.inventory
2272
top_id = inv.path2id(prefix)
2276
pending = [(prefix, '', _directory, None, top_id, None)]
2279
currentdir = pending.pop()
2280
# 0 - relpath, 1- basename, 2- kind, 3- stat, 4-id, 5-kind
2281
top_id = currentdir[4]
2283
relroot = currentdir[0] + '/'
2286
# FIXME: stash the node in pending
2288
for name, child in entry.sorted_children():
2289
dirblock.append((relroot + name, name, child.kind, None,
2290
child.file_id, child.kind
2292
yield (currentdir[0], entry.file_id), dirblock
2293
# push the user specified dirs from dirblock
2294
for dir in reversed(dirblock):
2295
if dir[2] == _directory:
2298
@needs_tree_write_lock
2299
def auto_resolve(self):
2300
"""Automatically resolve text conflicts according to contents.
2302
Only text conflicts are auto_resolvable. Files with no conflict markers
2303
are considered 'resolved', because bzr always puts conflict markers
2304
into files that have text conflicts. The corresponding .THIS .BASE and
2305
.OTHER files are deleted, as per 'resolve'.
2306
:return: a tuple of ConflictLists: (un_resolved, resolved).
2308
un_resolved = _mod_conflicts.ConflictList()
2309
resolved = _mod_conflicts.ConflictList()
2310
conflict_re = re.compile('^(<{7}|={7}|>{7})')
2311
for conflict in self.conflicts():
2312
if (conflict.typestring != 'text conflict' or
2313
self.kind(conflict.file_id) != 'file'):
2314
un_resolved.append(conflict)
2316
my_file = open(self.id2abspath(conflict.file_id), 'rb')
2318
for line in my_file:
2319
if conflict_re.search(line):
2320
un_resolved.append(conflict)
2323
resolved.append(conflict)
2326
resolved.remove_files(self)
2327
self.set_conflicts(un_resolved)
2328
return un_resolved, resolved
2330
def _validate(self):
2331
"""Validate internal structures.
2333
This is meant mostly for the test suite. To give it a chance to detect
2334
corruption after actions have occurred. The default implementation is a
2337
:return: None. An exception should be raised if there is an error.
2342
class WorkingTree2(WorkingTree):
2343
"""This is the Format 2 working tree.
2345
This was the first weave based working tree.
2346
- uses os locks for locking.
2347
- uses the branch last-revision.
2350
def __init__(self, *args, **kwargs):
2351
super(WorkingTree2, self).__init__(*args, **kwargs)
2352
# WorkingTree2 has more of a constraint that self._inventory must
2353
# exist. Because this is an older format, we don't mind the overhead
2354
# caused by the extra computation here.
2356
# Newer WorkingTree's should only have self._inventory set when they
2358
if self._inventory is None:
2359
self.read_working_inventory()
2361
def lock_tree_write(self):
2362
"""See WorkingTree.lock_tree_write().
2364
In Format2 WorkingTrees we have a single lock for the branch and tree
2365
so lock_tree_write() degrades to lock_write().
2367
self.branch.lock_write()
2369
return self._control_files.lock_write()
2371
self.branch.unlock()
2375
# we share control files:
2376
if self._control_files._lock_count == 3:
2377
# _inventory_is_modified is always False during a read lock.
2378
if self._inventory_is_modified:
2380
self._write_hashcache_if_dirty()
2382
# reverse order of locking.
2384
return self._control_files.unlock()
2386
self.branch.unlock()
2389
class WorkingTree3(WorkingTree):
2390
"""This is the Format 3 working tree.
2392
This differs from the base WorkingTree by:
2393
- having its own file lock
2394
- having its own last-revision property.
2396
This is new in bzr 0.8
2400
def _last_revision(self):
2401
"""See Mutable.last_revision."""
2403
return osutils.safe_revision_id(
2404
self._control_files.get('last-revision').read())
2405
except errors.NoSuchFile:
2408
def _change_last_revision(self, revision_id):
2409
"""See WorkingTree._change_last_revision."""
2410
if revision_id is None or revision_id == NULL_REVISION:
2412
self._control_files._transport.delete('last-revision')
2413
except errors.NoSuchFile:
2417
self._control_files.put_bytes('last-revision', revision_id)
2420
@needs_tree_write_lock
2421
def set_conflicts(self, conflicts):
2422
self._put_rio('conflicts', conflicts.to_stanzas(),
2425
@needs_tree_write_lock
2426
def add_conflicts(self, new_conflicts):
2427
conflict_set = set(self.conflicts())
2428
conflict_set.update(set(list(new_conflicts)))
2429
self.set_conflicts(_mod_conflicts.ConflictList(sorted(conflict_set,
2430
key=_mod_conflicts.Conflict.sort_key)))
2433
def conflicts(self):
2435
confile = self._control_files.get('conflicts')
2436
except errors.NoSuchFile:
2437
return _mod_conflicts.ConflictList()
2439
if confile.next() != CONFLICT_HEADER_1 + '\n':
2440
raise errors.ConflictFormatError()
2441
except StopIteration:
2442
raise errors.ConflictFormatError()
2443
return _mod_conflicts.ConflictList.from_stanzas(RioReader(confile))
2446
if self._control_files._lock_count == 1:
2447
# _inventory_is_modified is always False during a read lock.
2448
if self._inventory_is_modified:
2450
self._write_hashcache_if_dirty()
2451
# reverse order of locking.
2453
return self._control_files.unlock()
2455
self.branch.unlock()
2458
def get_conflicted_stem(path):
2459
for suffix in _mod_conflicts.CONFLICT_SUFFIXES:
2460
if path.endswith(suffix):
2461
return path[:-len(suffix)]
2464
@deprecated_function(zero_eight)
2465
def is_control_file(filename):
2466
"""See WorkingTree.is_control_filename(filename)."""
2467
## FIXME: better check
2468
filename = normpath(filename)
2469
while filename != '':
2470
head, tail = os.path.split(filename)
2471
## mutter('check %r for control file' % ((head, tail),))
2474
if filename == head:
2480
class WorkingTreeFormat(object):
2481
"""An encapsulation of the initialization and open routines for a format.
2483
Formats provide three things:
2484
* An initialization routine,
2488
Formats are placed in an dict by their format string for reference
2489
during workingtree opening. Its not required that these be instances, they
2490
can be classes themselves with class methods - it simply depends on
2491
whether state is needed for a given format or not.
2493
Once a format is deprecated, just deprecate the initialize and open
2494
methods on the format class. Do not deprecate the object, as the
2495
object will be created every time regardless.
2498
_default_format = None
2499
"""The default format used for new trees."""
2502
"""The known formats."""
2504
requires_rich_root = False
2506
upgrade_recommended = False
2509
def find_format(klass, a_bzrdir):
2510
"""Return the format for the working tree object in a_bzrdir."""
2512
transport = a_bzrdir.get_workingtree_transport(None)
2513
format_string = transport.get("format").read()
2514
return klass._formats[format_string]
2515
except errors.NoSuchFile:
2516
raise errors.NoWorkingTree(base=transport.base)
2518
raise errors.UnknownFormatError(format=format_string)
2520
def __eq__(self, other):
2521
return self.__class__ is other.__class__
2523
def __ne__(self, other):
2524
return not (self == other)
2527
def get_default_format(klass):
2528
"""Return the current default format."""
2529
return klass._default_format
2531
def get_format_string(self):
2532
"""Return the ASCII format string that identifies this format."""
2533
raise NotImplementedError(self.get_format_string)
2535
def get_format_description(self):
2536
"""Return the short description for this format."""
2537
raise NotImplementedError(self.get_format_description)
2539
def is_supported(self):
2540
"""Is this format supported?
2542
Supported formats can be initialized and opened.
2543
Unsupported formats may not support initialization or committing or
2544
some other features depending on the reason for not being supported.
2549
def register_format(klass, format):
2550
klass._formats[format.get_format_string()] = format
2553
def set_default_format(klass, format):
2554
klass._default_format = format
2557
def unregister_format(klass, format):
2558
assert klass._formats[format.get_format_string()] is format
2559
del klass._formats[format.get_format_string()]
2562
class WorkingTreeFormat2(WorkingTreeFormat):
2563
"""The second working tree format.
2565
This format modified the hash cache from the format 1 hash cache.
2568
upgrade_recommended = True
2570
def get_format_description(self):
2571
"""See WorkingTreeFormat.get_format_description()."""
2572
return "Working tree format 2"
2574
def stub_initialize_remote(self, control_files):
2575
"""As a special workaround create critical control files for a remote working tree
2577
This ensures that it can later be updated and dealt with locally,
2578
since BzrDirFormat6 and BzrDirFormat5 cannot represent dirs with
2579
no working tree. (See bug #43064).
2583
xml5.serializer_v5.write_inventory(inv, sio)
2585
control_files.put('inventory', sio)
2587
control_files.put_bytes('pending-merges', '')
2590
def initialize(self, a_bzrdir, revision_id=None):
2591
"""See WorkingTreeFormat.initialize()."""
2592
if not isinstance(a_bzrdir.transport, LocalTransport):
2593
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2594
branch = a_bzrdir.open_branch()
2595
if revision_id is not None:
2596
revision_id = osutils.safe_revision_id(revision_id)
2599
revision_history = branch.revision_history()
2601
position = revision_history.index(revision_id)
2603
raise errors.NoSuchRevision(branch, revision_id)
2604
branch.set_revision_history(revision_history[:position + 1])
2607
revision = branch.last_revision()
2609
wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
2615
basis_tree = branch.repository.revision_tree(revision)
2616
if basis_tree.inventory.root is not None:
2617
wt.set_root_id(basis_tree.inventory.root.file_id)
2618
# set the parent list and cache the basis tree.
2619
wt.set_parent_trees([(revision, basis_tree)])
2620
transform.build_tree(basis_tree, wt)
2624
super(WorkingTreeFormat2, self).__init__()
2625
self._matchingbzrdir = bzrdir.BzrDirFormat6()
2627
def open(self, a_bzrdir, _found=False):
2628
"""Return the WorkingTree object for a_bzrdir
2630
_found is a private parameter, do not use it. It is used to indicate
2631
if format probing has already been done.
2634
# we are being called directly and must probe.
2635
raise NotImplementedError
2636
if not isinstance(a_bzrdir.transport, LocalTransport):
2637
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2638
wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
2644
class WorkingTreeFormat3(WorkingTreeFormat):
2645
"""The second working tree format updated to record a format marker.
2648
- exists within a metadir controlling .bzr
2649
- includes an explicit version marker for the workingtree control
2650
files, separate from the BzrDir format
2651
- modifies the hash cache format
2653
- uses a LockDir to guard access for writes.
2656
upgrade_recommended = True
2658
def get_format_string(self):
2659
"""See WorkingTreeFormat.get_format_string()."""
2660
return "Bazaar-NG Working Tree format 3"
2662
def get_format_description(self):
2663
"""See WorkingTreeFormat.get_format_description()."""
2664
return "Working tree format 3"
2666
_lock_file_name = 'lock'
2667
_lock_class = LockDir
2669
_tree_class = WorkingTree3
2671
def __get_matchingbzrdir(self):
2672
return bzrdir.BzrDirMetaFormat1()
2674
_matchingbzrdir = property(__get_matchingbzrdir)
2676
def _open_control_files(self, a_bzrdir):
2677
transport = a_bzrdir.get_workingtree_transport(None)
2678
return LockableFiles(transport, self._lock_file_name,
2681
def initialize(self, a_bzrdir, revision_id=None):
2682
"""See WorkingTreeFormat.initialize().
2684
revision_id allows creating a working tree at a different
2685
revision than the branch is at.
2687
if not isinstance(a_bzrdir.transport, LocalTransport):
2688
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2689
transport = a_bzrdir.get_workingtree_transport(self)
2690
control_files = self._open_control_files(a_bzrdir)
2691
control_files.create_lock()
2692
control_files.lock_write()
2693
control_files.put_utf8('format', self.get_format_string())
2694
branch = a_bzrdir.open_branch()
2695
if revision_id is None:
2696
revision_id = branch.last_revision()
2698
revision_id = osutils.safe_revision_id(revision_id)
2699
# WorkingTree3 can handle an inventory which has a unique root id.
2700
# as of bzr 0.12. However, bzr 0.11 and earlier fail to handle
2701
# those trees. And because there isn't a format bump inbetween, we
2702
# are maintaining compatibility with older clients.
2703
# inv = Inventory(root_id=gen_root_id())
2704
inv = self._initial_inventory()
2705
wt = self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
2711
_control_files=control_files)
2712
wt.lock_tree_write()
2714
basis_tree = branch.repository.revision_tree(revision_id)
2715
# only set an explicit root id if there is one to set.
2716
if basis_tree.inventory.root is not None:
2717
wt.set_root_id(basis_tree.inventory.root.file_id)
2718
if revision_id == NULL_REVISION:
2719
wt.set_parent_trees([])
2721
wt.set_parent_trees([(revision_id, basis_tree)])
2722
transform.build_tree(basis_tree, wt)
2724
# Unlock in this order so that the unlock-triggers-flush in
2725
# WorkingTree is given a chance to fire.
2726
control_files.unlock()
2730
def _initial_inventory(self):
2734
super(WorkingTreeFormat3, self).__init__()
2736
def open(self, a_bzrdir, _found=False):
2737
"""Return the WorkingTree object for a_bzrdir
2739
_found is a private parameter, do not use it. It is used to indicate
2740
if format probing has already been done.
2743
# we are being called directly and must probe.
2744
raise NotImplementedError
2745
if not isinstance(a_bzrdir.transport, LocalTransport):
2746
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2747
wt = self._open(a_bzrdir, self._open_control_files(a_bzrdir))
2750
def _open(self, a_bzrdir, control_files):
2751
"""Open the tree itself.
2753
:param a_bzrdir: the dir for the tree.
2754
:param control_files: the control files for the tree.
2756
return self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
2760
_control_files=control_files)
2763
return self.get_format_string()
2766
__default_format = WorkingTreeFormat4()
2767
WorkingTreeFormat.register_format(__default_format)
2768
WorkingTreeFormat.register_format(WorkingTreeFormat3())
2769
WorkingTreeFormat.set_default_format(__default_format)
2770
# formats which have no format string are not discoverable
2771
# and not independently creatable, so are not registered.
2772
_legacy_formats = [WorkingTreeFormat2(),
added
removed
bzrlib/workingtree.py
