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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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revision as _mod_revision,
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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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self._flush_ignore_list_cache()
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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, path=None):
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path = self.id2path(file_id)
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return self.get_file_byname(path)
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def get_file_text(self, file_id):
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return self.get_file(file_id).read()
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def get_file_byname(self, filename):
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return file(self.abspath(filename), 'rb')
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def annotate_iter(self, file_id, default_revision=CURRENT_REVISION):
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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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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_ancestors(self, default_revision):
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ancestors = set([default_revision])
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for parent_id in self.get_parent_ids():
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ancestors.update(self.branch.repository.get_ancestry(
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parent_id, topo_sorted=False))
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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 = _mod_revision.ensure_null(self._last_revision())
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if _mod_revision.NULL_REVISION == last_rev:
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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 = 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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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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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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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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if file_id == self.inventory.root.file_id:
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return self.inventory.has_id(file_id)
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__contains__ = has_id
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def get_file_size(self, file_id):
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return os.path.getsize(self.id2abspath(file_id))
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def get_file_sha1(self, file_id, path=None, stat_value=None):
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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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path = self.inventory.id2path(file_id)
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return os.lstat(self.abspath(path)).st_mtime
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def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
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file_id = self.path2id(path)
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return self._inventory[file_id].executable
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def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
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mode = stat_result.st_mode
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return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
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if not supports_executable():
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def is_executable(self, file_id, path=None):
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return self._inventory[file_id].executable
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_is_executable_from_path_and_stat = \
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_is_executable_from_path_and_stat_from_basis
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def is_executable(self, file_id, path=None):
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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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_is_executable_from_path_and_stat = \
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_is_executable_from_path_and_stat_from_stat
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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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for f, file_id, kind in zip(files, ids, kinds):
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assert kind is not None
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inv.add_path(f, kind=kind)
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inv.add_path(f, kind=kind, file_id=file_id)
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self._inventory_is_modified = True
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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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def path_content_summary(self, path, _lstat=osutils.lstat,
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_mapper=osutils.file_kind_from_stat_mode):
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"""See Tree.path_content_summary."""
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abspath = self.abspath(path)
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stat_result = _lstat(abspath)
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if getattr(e, 'errno', None) == errno.ENOENT:
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return ('missing', None, None, None)
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# propagate other errors
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kind = _mapper(stat_result.st_mode)
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size = stat_result.st_size
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# try for a stat cache lookup
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executable = self._is_executable_from_path_and_stat(path, stat_result)
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return (kind, size, executable, self._sha_from_stat(
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elif kind == 'directory':
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# perhaps it looks like a plain directory, but it's really a
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if self._directory_is_tree_reference(path):
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kind = 'tree-reference'
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return kind, None, None, None
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elif kind == 'symlink':
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return ('symlink', None, None, os.readlink(abspath))
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return (kind, None, None, None)
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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.
769
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
772
set_parent_trees rather than set_parent_ids. set_parent_ids is however
773
an easier API to use.
775
:param revision_ids: The revision_ids to set as the parent ids of this
776
working tree. Any of these may be ghosts.
778
self._check_parents_for_ghosts(revision_ids,
779
allow_leftmost_as_ghost=allow_leftmost_as_ghost)
780
for revision_id in revision_ids:
781
_mod_revision.check_not_reserved_id(revision_id)
783
if len(revision_ids) > 0:
784
self.set_last_revision(revision_ids[0])
786
self.set_last_revision(_mod_revision.NULL_REVISION)
788
self._set_merges_from_parent_ids(revision_ids)
790
@needs_tree_write_lock
791
def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
792
"""See MutableTree.set_parent_trees."""
793
parent_ids = [rev for (rev, tree) in parents_list]
794
for revision_id in parent_ids:
795
_mod_revision.check_not_reserved_id(revision_id)
797
self._check_parents_for_ghosts(parent_ids,
798
allow_leftmost_as_ghost=allow_leftmost_as_ghost)
800
if len(parent_ids) == 0:
801
leftmost_parent_id = _mod_revision.NULL_REVISION
802
leftmost_parent_tree = None
804
leftmost_parent_id, leftmost_parent_tree = parents_list[0]
806
if self._change_last_revision(leftmost_parent_id):
807
if leftmost_parent_tree is None:
808
# If we don't have a tree, fall back to reading the
809
# parent tree from the repository.
810
self._cache_basis_inventory(leftmost_parent_id)
812
inv = leftmost_parent_tree.inventory
813
xml = self._create_basis_xml_from_inventory(
814
leftmost_parent_id, inv)
815
self._write_basis_inventory(xml)
816
self._set_merges_from_parent_ids(parent_ids)
818
@needs_tree_write_lock
819
def set_pending_merges(self, rev_list):
820
parents = self.get_parent_ids()
821
leftmost = parents[:1]
822
new_parents = leftmost + rev_list
823
self.set_parent_ids(new_parents)
825
@needs_tree_write_lock
826
def set_merge_modified(self, modified_hashes):
828
for file_id, hash in modified_hashes.iteritems():
829
yield Stanza(file_id=file_id.decode('utf8'), hash=hash)
830
self._put_rio('merge-hashes', iter_stanzas(), MERGE_MODIFIED_HEADER_1)
832
def _sha_from_stat(self, path, stat_result):
833
"""Get a sha digest from the tree's stat cache.
835
The default implementation assumes no stat cache is present.
837
:param path: The path.
838
:param stat_result: The stat result being looked up.
842
def _put_rio(self, filename, stanzas, header):
843
self._must_be_locked()
844
my_file = rio_file(stanzas, header)
845
self._control_files.put(filename, my_file)
847
@needs_write_lock # because merge pulls data into the branch.
848
def merge_from_branch(self, branch, to_revision=None, from_revision=None,
850
"""Merge from a branch into this working tree.
852
:param branch: The branch to merge from.
853
:param to_revision: If non-None, the merge will merge to to_revision,
854
but not beyond it. to_revision does not need to be in the history
855
of the branch when it is supplied. If None, to_revision defaults to
856
branch.last_revision().
858
from bzrlib.merge import Merger, Merge3Merger
859
pb = bzrlib.ui.ui_factory.nested_progress_bar()
861
merger = Merger(self.branch, this_tree=self, pb=pb)
862
merger.pp = ProgressPhase("Merge phase", 5, pb)
863
merger.pp.next_phase()
864
# check that there are no
866
merger.check_basis(check_clean=True, require_commits=False)
867
if to_revision is None:
868
to_revision = _mod_revision.ensure_null(branch.last_revision())
869
merger.other_rev_id = to_revision
870
if _mod_revision.is_null(merger.other_rev_id):
871
raise errors.NoCommits(branch)
872
self.branch.fetch(branch, last_revision=merger.other_rev_id)
873
merger.other_basis = merger.other_rev_id
874
merger.other_tree = self.branch.repository.revision_tree(
876
merger.other_branch = branch
877
merger.pp.next_phase()
878
if from_revision is None:
881
merger.set_base_revision(from_revision, branch)
882
if merger.base_rev_id == merger.other_rev_id:
883
raise errors.PointlessMerge
884
merger.backup_files = False
885
if merge_type is None:
886
merger.merge_type = Merge3Merger
888
merger.merge_type = merge_type
889
merger.set_interesting_files(None)
890
merger.show_base = False
891
merger.reprocess = False
892
conflicts = merger.do_merge()
899
def merge_modified(self):
900
"""Return a dictionary of files modified by a merge.
902
The list is initialized by WorkingTree.set_merge_modified, which is
903
typically called after we make some automatic updates to the tree
906
This returns a map of file_id->sha1, containing only files which are
907
still in the working inventory and have that text hash.
910
hashfile = self._control_files.get('merge-hashes')
911
except errors.NoSuchFile:
915
if hashfile.next() != MERGE_MODIFIED_HEADER_1 + '\n':
916
raise errors.MergeModifiedFormatError()
917
except StopIteration:
918
raise errors.MergeModifiedFormatError()
919
for s in RioReader(hashfile):
920
# RioReader reads in Unicode, so convert file_ids back to utf8
921
file_id = osutils.safe_file_id(s.get("file_id"), warn=False)
922
if file_id not in self.inventory:
924
text_hash = s.get("hash")
925
if text_hash == self.get_file_sha1(file_id):
926
merge_hashes[file_id] = text_hash
930
def mkdir(self, path, file_id=None):
931
"""See MutableTree.mkdir()."""
933
file_id = generate_ids.gen_file_id(os.path.basename(path))
934
os.mkdir(self.abspath(path))
935
self.add(path, file_id, 'directory')
938
def get_symlink_target(self, file_id):
939
return os.readlink(self.id2abspath(file_id))
942
def subsume(self, other_tree):
943
def add_children(inventory, entry):
944
for child_entry in entry.children.values():
945
inventory._byid[child_entry.file_id] = child_entry
946
if child_entry.kind == 'directory':
947
add_children(inventory, child_entry)
948
if other_tree.get_root_id() == self.get_root_id():
949
raise errors.BadSubsumeSource(self, other_tree,
950
'Trees have the same root')
952
other_tree_path = self.relpath(other_tree.basedir)
953
except errors.PathNotChild:
954
raise errors.BadSubsumeSource(self, other_tree,
955
'Tree is not contained by the other')
956
new_root_parent = self.path2id(osutils.dirname(other_tree_path))
957
if new_root_parent is None:
958
raise errors.BadSubsumeSource(self, other_tree,
959
'Parent directory is not versioned.')
960
# We need to ensure that the result of a fetch will have a
961
# versionedfile for the other_tree root, and only fetching into
962
# RepositoryKnit2 guarantees that.
963
if not self.branch.repository.supports_rich_root():
964
raise errors.SubsumeTargetNeedsUpgrade(other_tree)
965
other_tree.lock_tree_write()
967
new_parents = other_tree.get_parent_ids()
968
other_root = other_tree.inventory.root
969
other_root.parent_id = new_root_parent
970
other_root.name = osutils.basename(other_tree_path)
971
self.inventory.add(other_root)
972
add_children(self.inventory, other_root)
973
self._write_inventory(self.inventory)
974
# normally we don't want to fetch whole repositories, but i think
975
# here we really do want to consolidate the whole thing.
976
for parent_id in other_tree.get_parent_ids():
977
self.branch.fetch(other_tree.branch, parent_id)
978
self.add_parent_tree_id(parent_id)
981
other_tree.bzrdir.retire_bzrdir()
983
def _directory_is_tree_reference(self, relpath):
984
# as a special case, if a directory contains control files then
985
# it's a tree reference, except that the root of the tree is not
986
return relpath and osutils.isdir(self.abspath(relpath) + u"/.bzr")
987
# TODO: We could ask all the control formats whether they
988
# recognize this directory, but at the moment there's no cheap api
989
# to do that. Since we probably can only nest bzr checkouts and
990
# they always use this name it's ok for now. -- mbp 20060306
992
# FIXME: There is an unhandled case here of a subdirectory
993
# containing .bzr but not a branch; that will probably blow up
994
# when you try to commit it. It might happen if there is a
995
# checkout in a subdirectory. This can be avoided by not adding
998
@needs_tree_write_lock
999
def extract(self, file_id, format=None):
1000
"""Extract a subtree from this tree.
1002
A new branch will be created, relative to the path for this tree.
1006
segments = osutils.splitpath(path)
1007
transport = self.branch.bzrdir.root_transport
1008
for name in segments:
1009
transport = transport.clone(name)
1010
transport.ensure_base()
1013
sub_path = self.id2path(file_id)
1014
branch_transport = mkdirs(sub_path)
1016
format = bzrdir.format_registry.make_bzrdir('dirstate-with-subtree')
1017
branch_transport.ensure_base()
1018
branch_bzrdir = format.initialize_on_transport(branch_transport)
1020
repo = branch_bzrdir.find_repository()
1021
except errors.NoRepositoryPresent:
1022
repo = branch_bzrdir.create_repository()
1023
assert repo.supports_rich_root()
1025
if not repo.supports_rich_root():
1026
raise errors.RootNotRich()
1027
new_branch = branch_bzrdir.create_branch()
1028
new_branch.pull(self.branch)
1029
for parent_id in self.get_parent_ids():
1030
new_branch.fetch(self.branch, parent_id)
1031
tree_transport = self.bzrdir.root_transport.clone(sub_path)
1032
if tree_transport.base != branch_transport.base:
1033
tree_bzrdir = format.initialize_on_transport(tree_transport)
1034
branch.BranchReferenceFormat().initialize(tree_bzrdir, new_branch)
1036
tree_bzrdir = branch_bzrdir
1037
wt = tree_bzrdir.create_workingtree(NULL_REVISION)
1038
wt.set_parent_ids(self.get_parent_ids())
1039
my_inv = self.inventory
1040
child_inv = Inventory(root_id=None)
1041
new_root = my_inv[file_id]
1042
my_inv.remove_recursive_id(file_id)
1043
new_root.parent_id = None
1044
child_inv.add(new_root)
1045
self._write_inventory(my_inv)
1046
wt._write_inventory(child_inv)
1049
def _serialize(self, inventory, out_file):
1050
xml5.serializer_v5.write_inventory(self._inventory, out_file,
1053
def _deserialize(selt, in_file):
1054
return xml5.serializer_v5.read_inventory(in_file)
1057
"""Write the in memory inventory to disk."""
1058
# TODO: Maybe this should only write on dirty ?
1059
if self._control_files._lock_mode != 'w':
1060
raise errors.NotWriteLocked(self)
1062
self._serialize(self._inventory, sio)
1064
self._control_files.put('inventory', sio)
1065
self._inventory_is_modified = False
1067
def _kind(self, relpath):
1068
return osutils.file_kind(self.abspath(relpath))
1070
def list_files(self, include_root=False):
1071
"""Recursively list all files as (path, class, kind, id, entry).
1073
Lists, but does not descend into unversioned directories.
1075
This does not include files that have been deleted in this
1078
Skips the control directory.
1080
# list_files is an iterator, so @needs_read_lock doesn't work properly
1081
# with it. So callers should be careful to always read_lock the tree.
1082
if not self.is_locked():
1083
raise errors.ObjectNotLocked(self)
1085
inv = self.inventory
1086
if include_root is True:
1087
yield ('', 'V', 'directory', inv.root.file_id, inv.root)
1088
# Convert these into local objects to save lookup times
1089
pathjoin = osutils.pathjoin
1090
file_kind = self._kind
1092
# transport.base ends in a slash, we want the piece
1093
# between the last two slashes
1094
transport_base_dir = self.bzrdir.transport.base.rsplit('/', 2)[1]
1096
fk_entries = {'directory':TreeDirectory, 'file':TreeFile, 'symlink':TreeLink}
1098
# directory file_id, relative path, absolute path, reverse sorted children
1099
children = os.listdir(self.basedir)
1101
# jam 20060527 The kernel sized tree seems equivalent whether we
1102
# use a deque and popleft to keep them sorted, or if we use a plain
1103
# list and just reverse() them.
1104
children = collections.deque(children)
1105
stack = [(inv.root.file_id, u'', self.basedir, children)]
1107
from_dir_id, from_dir_relpath, from_dir_abspath, children = stack[-1]
1110
f = children.popleft()
1111
## TODO: If we find a subdirectory with its own .bzr
1112
## directory, then that is a separate tree and we
1113
## should exclude it.
1115
# the bzrdir for this tree
1116
if transport_base_dir == f:
1119
# we know that from_dir_relpath and from_dir_abspath never end in a slash
1120
# and 'f' doesn't begin with one, we can do a string op, rather
1121
# than the checks of pathjoin(), all relative paths will have an extra slash
1123
fp = from_dir_relpath + '/' + f
1126
fap = from_dir_abspath + '/' + f
1128
f_ie = inv.get_child(from_dir_id, f)
1131
elif self.is_ignored(fp[1:]):
1134
# we may not have found this file, because of a unicode issue
1135
f_norm, can_access = osutils.normalized_filename(f)
1136
if f == f_norm or not can_access:
1137
# No change, so treat this file normally
1140
# this file can be accessed by a normalized path
1141
# check again if it is versioned
1142
# these lines are repeated here for performance
1144
fp = from_dir_relpath + '/' + f
1145
fap = from_dir_abspath + '/' + f
1146
f_ie = inv.get_child(from_dir_id, f)
1149
elif self.is_ignored(fp[1:]):
1156
# make a last minute entry
1158
yield fp[1:], c, fk, f_ie.file_id, f_ie
1161
yield fp[1:], c, fk, None, fk_entries[fk]()
1163
yield fp[1:], c, fk, None, TreeEntry()
1166
if fk != 'directory':
1169
# But do this child first
1170
new_children = os.listdir(fap)
1172
new_children = collections.deque(new_children)
1173
stack.append((f_ie.file_id, fp, fap, new_children))
1174
# Break out of inner loop,
1175
# so that we start outer loop with child
1178
# if we finished all children, pop it off the stack
1181
@needs_tree_write_lock
1182
def move(self, from_paths, to_dir=None, after=False, **kwargs):
1185
to_dir must exist in the inventory.
1187
If to_dir exists and is a directory, the files are moved into
1188
it, keeping their old names.
1190
Note that to_dir is only the last component of the new name;
1191
this doesn't change the directory.
1193
For each entry in from_paths the move mode will be determined
1196
The first mode moves the file in the filesystem and updates the
1197
inventory. The second mode only updates the inventory without
1198
touching the file on the filesystem. This is the new mode introduced
1201
move uses the second mode if 'after == True' and the target is not
1202
versioned but present in the working tree.
1204
move uses the second mode if 'after == False' and the source is
1205
versioned but no longer in the working tree, and the target is not
1206
versioned but present in the working tree.
1208
move uses the first mode if 'after == False' and the source is
1209
versioned and present in the working tree, and the target is not
1210
versioned and not present in the working tree.
1212
Everything else results in an error.
1214
This returns a list of (from_path, to_path) pairs for each
1215
entry that is moved.
1220
# check for deprecated use of signature
1222
to_dir = kwargs.get('to_name', None)
1224
raise TypeError('You must supply a target directory')
1226
symbol_versioning.warn('The parameter to_name was deprecated'
1227
' in version 0.13. Use to_dir instead',
1230
# check destination directory
1231
assert not isinstance(from_paths, basestring)
1232
inv = self.inventory
1233
to_abs = self.abspath(to_dir)
1234
if not isdir(to_abs):
1235
raise errors.BzrMoveFailedError('',to_dir,
1236
errors.NotADirectory(to_abs))
1237
if not self.has_filename(to_dir):
1238
raise errors.BzrMoveFailedError('',to_dir,
1239
errors.NotInWorkingDirectory(to_dir))
1240
to_dir_id = inv.path2id(to_dir)
1241
if to_dir_id is None:
1242
raise errors.BzrMoveFailedError('',to_dir,
1243
errors.NotVersionedError(path=str(to_dir)))
1245
to_dir_ie = inv[to_dir_id]
1246
if to_dir_ie.kind != 'directory':
1247
raise errors.BzrMoveFailedError('',to_dir,
1248
errors.NotADirectory(to_abs))
1250
# create rename entries and tuples
1251
for from_rel in from_paths:
1252
from_tail = splitpath(from_rel)[-1]
1253
from_id = inv.path2id(from_rel)
1255
raise errors.BzrMoveFailedError(from_rel,to_dir,
1256
errors.NotVersionedError(path=str(from_rel)))
1258
from_entry = inv[from_id]
1259
from_parent_id = from_entry.parent_id
1260
to_rel = pathjoin(to_dir, from_tail)
1261
rename_entry = WorkingTree._RenameEntry(from_rel=from_rel,
1263
from_tail=from_tail,
1264
from_parent_id=from_parent_id,
1265
to_rel=to_rel, to_tail=from_tail,
1266
to_parent_id=to_dir_id)
1267
rename_entries.append(rename_entry)
1268
rename_tuples.append((from_rel, to_rel))
1270
# determine which move mode to use. checks also for movability
1271
rename_entries = self._determine_mv_mode(rename_entries, after)
1273
original_modified = self._inventory_is_modified
1276
self._inventory_is_modified = True
1277
self._move(rename_entries)
1279
# restore the inventory on error
1280
self._inventory_is_modified = original_modified
1282
self._write_inventory(inv)
1283
return rename_tuples
1285
def _determine_mv_mode(self, rename_entries, after=False):
1286
"""Determines for each from-to pair if both inventory and working tree
1287
or only the inventory has to be changed.
1289
Also does basic plausability tests.
1291
inv = self.inventory
1293
for rename_entry in rename_entries:
1294
# store to local variables for easier reference
1295
from_rel = rename_entry.from_rel
1296
from_id = rename_entry.from_id
1297
to_rel = rename_entry.to_rel
1298
to_id = inv.path2id(to_rel)
1299
only_change_inv = False
1301
# check the inventory for source and destination
1303
raise errors.BzrMoveFailedError(from_rel,to_rel,
1304
errors.NotVersionedError(path=str(from_rel)))
1305
if to_id is not None:
1306
raise errors.BzrMoveFailedError(from_rel,to_rel,
1307
errors.AlreadyVersionedError(path=str(to_rel)))
1309
# try to determine the mode for rename (only change inv or change
1310
# inv and file system)
1312
if not self.has_filename(to_rel):
1313
raise errors.BzrMoveFailedError(from_id,to_rel,
1314
errors.NoSuchFile(path=str(to_rel),
1315
extra="New file has not been created yet"))
1316
only_change_inv = True
1317
elif not self.has_filename(from_rel) and self.has_filename(to_rel):
1318
only_change_inv = True
1319
elif self.has_filename(from_rel) and not self.has_filename(to_rel):
1320
only_change_inv = False
1322
# something is wrong, so lets determine what exactly
1323
if not self.has_filename(from_rel) and \
1324
not self.has_filename(to_rel):
1325
raise errors.BzrRenameFailedError(from_rel,to_rel,
1326
errors.PathsDoNotExist(paths=(str(from_rel),
1329
raise errors.RenameFailedFilesExist(from_rel, to_rel,
1330
extra="(Use --after to update the Bazaar id)")
1331
rename_entry.only_change_inv = only_change_inv
1332
return rename_entries
1334
def _move(self, rename_entries):
1335
"""Moves a list of files.
1337
Depending on the value of the flag 'only_change_inv', the
1338
file will be moved on the file system or not.
1340
inv = self.inventory
1343
for entry in rename_entries:
1345
self._move_entry(entry)
1347
self._rollback_move(moved)
1351
def _rollback_move(self, moved):
1352
"""Try to rollback a previous move in case of an filesystem error."""
1353
inv = self.inventory
1356
self._move_entry(_RenameEntry(entry.to_rel, entry.from_id,
1357
entry.to_tail, entry.to_parent_id, entry.from_rel,
1358
entry.from_tail, entry.from_parent_id,
1359
entry.only_change_inv))
1360
except errors.BzrMoveFailedError, e:
1361
raise errors.BzrMoveFailedError( '', '', "Rollback failed."
1362
" The working tree is in an inconsistent state."
1363
" Please consider doing a 'bzr revert'."
1364
" Error message is: %s" % e)
1366
def _move_entry(self, entry):
1367
inv = self.inventory
1368
from_rel_abs = self.abspath(entry.from_rel)
1369
to_rel_abs = self.abspath(entry.to_rel)
1370
if from_rel_abs == to_rel_abs:
1371
raise errors.BzrMoveFailedError(entry.from_rel, entry.to_rel,
1372
"Source and target are identical.")
1374
if not entry.only_change_inv:
1376
osutils.rename(from_rel_abs, to_rel_abs)
1378
raise errors.BzrMoveFailedError(entry.from_rel,
1380
inv.rename(entry.from_id, entry.to_parent_id, entry.to_tail)
1382
@needs_tree_write_lock
1383
def rename_one(self, from_rel, to_rel, after=False):
1386
This can change the directory or the filename or both.
1388
rename_one has several 'modes' to work. First, it can rename a physical
1389
file and change the file_id. That is the normal mode. Second, it can
1390
only change the file_id without touching any physical file. This is
1391
the new mode introduced in version 0.15.
1393
rename_one uses the second mode if 'after == True' and 'to_rel' is not
1394
versioned but present in the working tree.
1396
rename_one uses the second mode if 'after == False' and 'from_rel' is
1397
versioned but no longer in the working tree, and 'to_rel' is not
1398
versioned but present in the working tree.
1400
rename_one uses the first mode if 'after == False' and 'from_rel' is
1401
versioned and present in the working tree, and 'to_rel' is not
1402
versioned and not present in the working tree.
1404
Everything else results in an error.
1406
inv = self.inventory
1409
# create rename entries and tuples
1410
from_tail = splitpath(from_rel)[-1]
1411
from_id = inv.path2id(from_rel)
1413
raise errors.BzrRenameFailedError(from_rel,to_rel,
1414
errors.NotVersionedError(path=str(from_rel)))
1415
from_entry = inv[from_id]
1416
from_parent_id = from_entry.parent_id
1417
to_dir, to_tail = os.path.split(to_rel)
1418
to_dir_id = inv.path2id(to_dir)
1419
rename_entry = WorkingTree._RenameEntry(from_rel=from_rel,
1421
from_tail=from_tail,
1422
from_parent_id=from_parent_id,
1423
to_rel=to_rel, to_tail=to_tail,
1424
to_parent_id=to_dir_id)
1425
rename_entries.append(rename_entry)
1427
# determine which move mode to use. checks also for movability
1428
rename_entries = self._determine_mv_mode(rename_entries, after)
1430
# check if the target changed directory and if the target directory is
1432
if to_dir_id is None:
1433
raise errors.BzrMoveFailedError(from_rel,to_rel,
1434
errors.NotVersionedError(path=str(to_dir)))
1436
# all checks done. now we can continue with our actual work
1437
mutter('rename_one:\n'
1442
' to_dir_id {%s}\n',
1443
from_id, from_rel, to_rel, to_dir, to_dir_id)
1445
self._move(rename_entries)
1446
self._write_inventory(inv)
1448
class _RenameEntry(object):
1449
def __init__(self, from_rel, from_id, from_tail, from_parent_id,
1450
to_rel, to_tail, to_parent_id, only_change_inv=False):
1451
self.from_rel = from_rel
1452
self.from_id = from_id
1453
self.from_tail = from_tail
1454
self.from_parent_id = from_parent_id
1455
self.to_rel = to_rel
1456
self.to_tail = to_tail
1457
self.to_parent_id = to_parent_id
1458
self.only_change_inv = only_change_inv
1462
"""Return all unknown files.
1464
These are files in the working directory that are not versioned or
1465
control files or ignored.
1467
# force the extras method to be fully executed before returning, to
1468
# prevent race conditions with the lock
1470
[subp for subp in self.extras() if not self.is_ignored(subp)])
1472
@needs_tree_write_lock
1473
def unversion(self, file_ids):
1474
"""Remove the file ids in file_ids from the current versioned set.
1476
When a file_id is unversioned, all of its children are automatically
1479
:param file_ids: The file ids to stop versioning.
1480
:raises: NoSuchId if any fileid is not currently versioned.
1482
for file_id in file_ids:
1483
if self._inventory.has_id(file_id):
1484
self._inventory.remove_recursive_id(file_id)
1486
raise errors.NoSuchId(self, file_id)
1488
# in the future this should just set a dirty bit to wait for the
1489
# final unlock. However, until all methods of workingtree start
1490
# with the current in -memory inventory rather than triggering
1491
# a read, it is more complex - we need to teach read_inventory
1492
# to know when to read, and when to not read first... and possibly
1493
# to save first when the in memory one may be corrupted.
1494
# so for now, we just only write it if it is indeed dirty.
1496
self._write_inventory(self._inventory)
1498
@deprecated_method(zero_eight)
1499
def iter_conflicts(self):
1500
"""List all files in the tree that have text or content conflicts.
1501
DEPRECATED. Use conflicts instead."""
1502
return self._iter_conflicts()
1504
def _iter_conflicts(self):
1506
for info in self.list_files():
1508
stem = get_conflicted_stem(path)
1511
if stem not in conflicted:
1512
conflicted.add(stem)
1516
def pull(self, source, overwrite=False, stop_revision=None,
1517
change_reporter=None, possible_transports=None):
1518
top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1521
pp = ProgressPhase("Pull phase", 2, top_pb)
1523
old_revision_info = self.branch.last_revision_info()
1524
basis_tree = self.basis_tree()
1525
count = self.branch.pull(source, overwrite, stop_revision,
1526
possible_transports=possible_transports)
1527
new_revision_info = self.branch.last_revision_info()
1528
if new_revision_info != old_revision_info:
1530
repository = self.branch.repository
1531
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1532
basis_tree.lock_read()
1534
new_basis_tree = self.branch.basis_tree()
1541
change_reporter=change_reporter)
1542
if (basis_tree.inventory.root is None and
1543
new_basis_tree.inventory.root is not None):
1544
self.set_root_id(new_basis_tree.inventory.root.file_id)
1548
# TODO - dedup parents list with things merged by pull ?
1549
# reuse the revisiontree we merged against to set the new
1551
parent_trees = [(self.branch.last_revision(), new_basis_tree)]
1552
# we have to pull the merge trees out again, because
1553
# merge_inner has set the ids. - this corner is not yet
1554
# layered well enough to prevent double handling.
1555
# XXX TODO: Fix the double handling: telling the tree about
1556
# the already known parent data is wasteful.
1557
merges = self.get_parent_ids()[1:]
1558
parent_trees.extend([
1559
(parent, repository.revision_tree(parent)) for
1561
self.set_parent_trees(parent_trees)
1568
def put_file_bytes_non_atomic(self, file_id, bytes):
1569
"""See MutableTree.put_file_bytes_non_atomic."""
1570
stream = file(self.id2abspath(file_id), 'wb')
1575
# TODO: update the hashcache here ?
1578
"""Yield all unversioned files in this WorkingTree.
1580
If there are any unversioned directories then only the directory is
1581
returned, not all its children. But if there are unversioned files
1582
under a versioned subdirectory, they are returned.
1584
Currently returned depth-first, sorted by name within directories.
1585
This is the same order used by 'osutils.walkdirs'.
1587
## TODO: Work from given directory downwards
1588
for path, dir_entry in self.inventory.directories():
1589
# mutter("search for unknowns in %r", path)
1590
dirabs = self.abspath(path)
1591
if not isdir(dirabs):
1592
# e.g. directory deleted
1596
for subf in os.listdir(dirabs):
1599
if subf not in dir_entry.children:
1600
subf_norm, can_access = osutils.normalized_filename(subf)
1601
if subf_norm != subf and can_access:
1602
if subf_norm not in dir_entry.children:
1603
fl.append(subf_norm)
1609
subp = pathjoin(path, subf)
1612
def ignored_files(self):
1613
"""Yield list of PATH, IGNORE_PATTERN"""
1614
for subp in self.extras():
1615
pat = self.is_ignored(subp)
1619
def get_ignore_list(self):
1620
"""Return list of ignore patterns.
1622
Cached in the Tree object after the first call.
1624
ignoreset = getattr(self, '_ignoreset', None)
1625
if ignoreset is not None:
1628
ignore_globs = set()
1629
ignore_globs.update(ignores.get_runtime_ignores())
1630
ignore_globs.update(ignores.get_user_ignores())
1631
if self.has_filename(bzrlib.IGNORE_FILENAME):
1632
f = self.get_file_byname(bzrlib.IGNORE_FILENAME)
1634
ignore_globs.update(ignores.parse_ignore_file(f))
1637
self._ignoreset = ignore_globs
1640
def _flush_ignore_list_cache(self):
1641
"""Resets the cached ignore list to force a cache rebuild."""
1642
self._ignoreset = None
1643
self._ignoreglobster = None
1645
def is_ignored(self, filename):
1646
r"""Check whether the filename matches an ignore pattern.
1648
Patterns containing '/' or '\' need to match the whole path;
1649
others match against only the last component.
1651
If the file is ignored, returns the pattern which caused it to
1652
be ignored, otherwise None. So this can simply be used as a
1653
boolean if desired."""
1654
if getattr(self, '_ignoreglobster', None) is None:
1655
self._ignoreglobster = globbing.Globster(self.get_ignore_list())
1656
return self._ignoreglobster.match(filename)
1658
def kind(self, file_id):
1659
return file_kind(self.id2abspath(file_id))
1661
def _comparison_data(self, entry, path):
1662
abspath = self.abspath(path)
1664
stat_value = os.lstat(abspath)
1666
if getattr(e, 'errno', None) == errno.ENOENT:
1673
mode = stat_value.st_mode
1674
kind = osutils.file_kind_from_stat_mode(mode)
1675
if not supports_executable():
1676
executable = entry is not None and entry.executable
1678
executable = bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
1679
return kind, executable, stat_value
1681
def _file_size(self, entry, stat_value):
1682
return stat_value.st_size
1684
def last_revision(self):
1685
"""Return the last revision of the branch for this tree.
1687
This format tree does not support a separate marker for last-revision
1688
compared to the branch.
1690
See MutableTree.last_revision
1692
return self._last_revision()
1695
def _last_revision(self):
1696
"""helper for get_parent_ids."""
1697
return _mod_revision.ensure_null(self.branch.last_revision())
1699
def is_locked(self):
1700
return self._control_files.is_locked()
1702
def _must_be_locked(self):
1703
if not self.is_locked():
1704
raise errors.ObjectNotLocked(self)
1706
def lock_read(self):
1707
"""See Branch.lock_read, and WorkingTree.unlock."""
1708
if not self.is_locked():
1710
self.branch.lock_read()
1712
return self._control_files.lock_read()
1714
self.branch.unlock()
1717
def lock_tree_write(self):
1718
"""See MutableTree.lock_tree_write, and WorkingTree.unlock."""
1719
if not self.is_locked():
1721
self.branch.lock_read()
1723
return self._control_files.lock_write()
1725
self.branch.unlock()
1728
def lock_write(self):
1729
"""See MutableTree.lock_write, and WorkingTree.unlock."""
1730
if not self.is_locked():
1732
self.branch.lock_write()
1734
return self._control_files.lock_write()
1736
self.branch.unlock()
1739
def get_physical_lock_status(self):
1740
return self._control_files.get_physical_lock_status()
1742
def _basis_inventory_name(self):
1743
return 'basis-inventory-cache'
1745
def _reset_data(self):
1746
"""Reset transient data that cannot be revalidated."""
1747
self._inventory_is_modified = False
1748
result = self._deserialize(self._control_files.get('inventory'))
1749
self._set_inventory(result, dirty=False)
1751
@needs_tree_write_lock
1752
def set_last_revision(self, new_revision):
1753
"""Change the last revision in the working tree."""
1754
if self._change_last_revision(new_revision):
1755
self._cache_basis_inventory(new_revision)
1757
def _change_last_revision(self, new_revision):
1758
"""Template method part of set_last_revision to perform the change.
1760
This is used to allow WorkingTree3 instances to not affect branch
1761
when their last revision is set.
1763
if _mod_revision.is_null(new_revision):
1764
self.branch.set_revision_history([])
1767
self.branch.generate_revision_history(new_revision)
1768
except errors.NoSuchRevision:
1769
# not present in the repo - dont try to set it deeper than the tip
1770
self.branch.set_revision_history([new_revision])
1773
def _write_basis_inventory(self, xml):
1774
"""Write the basis inventory XML to the basis-inventory file"""
1775
assert isinstance(xml, str), 'serialised xml must be bytestring.'
1776
path = self._basis_inventory_name()
1778
self._control_files.put(path, sio)
1780
def _create_basis_xml_from_inventory(self, revision_id, inventory):
1781
"""Create the text that will be saved in basis-inventory"""
1782
inventory.revision_id = revision_id
1783
return xml7.serializer_v7.write_inventory_to_string(inventory)
1785
def _cache_basis_inventory(self, new_revision):
1786
"""Cache new_revision as the basis inventory."""
1787
# TODO: this should allow the ready-to-use inventory to be passed in,
1788
# as commit already has that ready-to-use [while the format is the
1791
# this double handles the inventory - unpack and repack -
1792
# but is easier to understand. We can/should put a conditional
1793
# in here based on whether the inventory is in the latest format
1794
# - perhaps we should repack all inventories on a repository
1796
# the fast path is to copy the raw xml from the repository. If the
1797
# xml contains 'revision_id="', then we assume the right
1798
# revision_id is set. We must check for this full string, because a
1799
# root node id can legitimately look like 'revision_id' but cannot
1801
xml = self.branch.repository.get_inventory_xml(new_revision)
1802
firstline = xml.split('\n', 1)[0]
1803
if (not 'revision_id="' in firstline or
1804
'format="7"' not in firstline):
1805
inv = self.branch.repository.deserialise_inventory(
1807
xml = self._create_basis_xml_from_inventory(new_revision, inv)
1808
self._write_basis_inventory(xml)
1809
except (errors.NoSuchRevision, errors.RevisionNotPresent):
1812
def read_basis_inventory(self):
1813
"""Read the cached basis inventory."""
1814
path = self._basis_inventory_name()
1815
return self._control_files.get(path).read()
1818
def read_working_inventory(self):
1819
"""Read the working inventory.
1821
:raises errors.InventoryModified: read_working_inventory will fail
1822
when the current in memory inventory has been modified.
1824
# conceptually this should be an implementation detail of the tree.
1825
# XXX: Deprecate this.
1826
# ElementTree does its own conversion from UTF-8, so open in
1828
if self._inventory_is_modified:
1829
raise errors.InventoryModified(self)
1830
result = self._deserialize(self._control_files.get('inventory'))
1831
self._set_inventory(result, dirty=False)
1834
@needs_tree_write_lock
1835
def remove(self, files, verbose=False, to_file=None, keep_files=True,
1837
"""Remove nominated files from the working inventory.
1839
:files: File paths relative to the basedir.
1840
:keep_files: If true, the files will also be kept.
1841
:force: Delete files and directories, even if they are changed and
1842
even if the directories are not empty.
1844
if isinstance(files, basestring):
1850
unknown_nested_files=set()
1852
def recurse_directory_to_add_files(directory):
1853
# Recurse directory and add all files
1854
# so we can check if they have changed.
1855
for parent_info, file_infos in\
1856
osutils.walkdirs(self.abspath(directory),
1858
for relpath, basename, kind, lstat, abspath in file_infos:
1859
# Is it versioned or ignored?
1860
if self.path2id(relpath) or self.is_ignored(relpath):
1861
# Add nested content for deletion.
1862
new_files.add(relpath)
1864
# Files which are not versioned and not ignored
1865
# should be treated as unknown.
1866
unknown_nested_files.add((relpath, None, kind))
1868
for filename in files:
1869
# Get file name into canonical form.
1870
abspath = self.abspath(filename)
1871
filename = self.relpath(abspath)
1872
if len(filename) > 0:
1873
new_files.add(filename)
1874
if osutils.isdir(abspath):
1875
recurse_directory_to_add_files(filename)
1877
files = list(new_files)
1880
return # nothing to do
1882
# Sort needed to first handle directory content before the directory
1883
files.sort(reverse=True)
1885
# Bail out if we are going to delete files we shouldn't
1886
if not keep_files and not force:
1887
has_changed_files = len(unknown_nested_files) > 0
1888
if not has_changed_files:
1889
for (file_id, path, content_change, versioned, parent_id, name,
1890
kind, executable) in self._iter_changes(self.basis_tree(),
1891
include_unchanged=True, require_versioned=False,
1892
want_unversioned=True, specific_files=files):
1893
# Check if it's an unknown (but not ignored) OR
1894
# changed (but not deleted) :
1895
if not self.is_ignored(path[1]) and (
1896
versioned == (False, False) or
1897
content_change and kind[1] != None):
1898
has_changed_files = True
1901
if has_changed_files:
1902
# Make delta show ALL applicable changes in error message.
1903
tree_delta = self.changes_from(self.basis_tree(),
1904
require_versioned=False, want_unversioned=True,
1905
specific_files=files)
1906
for unknown_file in unknown_nested_files:
1907
if unknown_file not in tree_delta.unversioned:
1908
tree_delta.unversioned.extend((unknown_file,))
1909
raise errors.BzrRemoveChangedFilesError(tree_delta)
1911
# Build inv_delta and delete files where applicaple,
1912
# do this before any modifications to inventory.
1914
fid = self.path2id(f)
1917
message = "%s is not versioned." % (f,)
1920
# having removed it, it must be either ignored or unknown
1921
if self.is_ignored(f):
1925
textui.show_status(new_status, self.kind(fid), f,
1928
inv_delta.append((f, None, fid, None))
1929
message = "removed %s" % (f,)
1932
abs_path = self.abspath(f)
1933
if osutils.lexists(abs_path):
1934
if (osutils.isdir(abs_path) and
1935
len(os.listdir(abs_path)) > 0):
1937
osutils.rmtree(abs_path)
1939
message = "%s is not an empty directory "\
1940
"and won't be deleted." % (f,)
1942
osutils.delete_any(abs_path)
1943
message = "deleted %s" % (f,)
1944
elif message is not None:
1945
# Only care if we haven't done anything yet.
1946
message = "%s does not exist." % (f,)
1948
# Print only one message (if any) per file.
1949
if message is not None:
1951
self.apply_inventory_delta(inv_delta)
1953
@needs_tree_write_lock
1954
def revert(self, filenames=None, old_tree=None, backups=True,
1955
pb=DummyProgress(), report_changes=False):
1956
from bzrlib.conflicts import resolve
1959
symbol_versioning.warn('Using [] to revert all files is deprecated'
1960
' as of bzr 0.91. Please use None (the default) instead.',
1961
DeprecationWarning, stacklevel=2)
1962
if old_tree is None:
1963
old_tree = self.basis_tree()
1964
conflicts = transform.revert(self, old_tree, filenames, backups, pb,
1966
if filenames is None:
1967
self.set_parent_ids(self.get_parent_ids()[:1])
1970
resolve(self, filenames, ignore_misses=True)
1973
def revision_tree(self, revision_id):
1974
"""See Tree.revision_tree.
1976
WorkingTree can supply revision_trees for the basis revision only
1977
because there is only one cached inventory in the bzr directory.
1979
if revision_id == self.last_revision():
1981
xml = self.read_basis_inventory()
1982
except errors.NoSuchFile:
1986
inv = xml7.serializer_v7.read_inventory_from_string(xml)
1987
# dont use the repository revision_tree api because we want
1988
# to supply the inventory.
1989
if inv.revision_id == revision_id:
1990
return revisiontree.RevisionTree(self.branch.repository,
1992
except errors.BadInventoryFormat:
1994
# raise if there was no inventory, or if we read the wrong inventory.
1995
raise errors.NoSuchRevisionInTree(self, revision_id)
1997
# XXX: This method should be deprecated in favour of taking in a proper
1998
# new Inventory object.
1999
@needs_tree_write_lock
2000
def set_inventory(self, new_inventory_list):
2001
from bzrlib.inventory import (Inventory,
2006
inv = Inventory(self.get_root_id())
2007
for path, file_id, parent, kind in new_inventory_list:
2008
name = os.path.basename(path)
2011
# fixme, there should be a factory function inv,add_??
2012
if kind == 'directory':
2013
inv.add(InventoryDirectory(file_id, name, parent))
2014
elif kind == 'file':
2015
inv.add(InventoryFile(file_id, name, parent))
2016
elif kind == 'symlink':
2017
inv.add(InventoryLink(file_id, name, parent))
2019
raise errors.BzrError("unknown kind %r" % kind)
2020
self._write_inventory(inv)
2022
@needs_tree_write_lock
2023
def set_root_id(self, file_id):
2024
"""Set the root id for this tree."""
2027
symbol_versioning.warn(symbol_versioning.zero_twelve
2028
% 'WorkingTree.set_root_id with fileid=None',
2033
file_id = osutils.safe_file_id(file_id)
2034
self._set_root_id(file_id)
2036
def _set_root_id(self, file_id):
2037
"""Set the root id for this tree, in a format specific manner.
2039
:param file_id: The file id to assign to the root. It must not be
2040
present in the current inventory or an error will occur. It must
2041
not be None, but rather a valid file id.
2043
inv = self._inventory
2044
orig_root_id = inv.root.file_id
2045
# TODO: it might be nice to exit early if there was nothing
2046
# to do, saving us from trigger a sync on unlock.
2047
self._inventory_is_modified = True
2048
# we preserve the root inventory entry object, but
2049
# unlinkit from the byid index
2050
del inv._byid[inv.root.file_id]
2051
inv.root.file_id = file_id
2052
# and link it into the index with the new changed id.
2053
inv._byid[inv.root.file_id] = inv.root
2054
# and finally update all children to reference the new id.
2055
# XXX: this should be safe to just look at the root.children
2056
# list, not the WHOLE INVENTORY.
2059
if entry.parent_id == orig_root_id:
2060
entry.parent_id = inv.root.file_id
2063
"""See Branch.unlock.
2065
WorkingTree locking just uses the Branch locking facilities.
2066
This is current because all working trees have an embedded branch
2067
within them. IF in the future, we were to make branch data shareable
2068
between multiple working trees, i.e. via shared storage, then we
2069
would probably want to lock both the local tree, and the branch.
2071
raise NotImplementedError(self.unlock)
2073
def update(self, change_reporter=None, possible_transports=None):
2074
"""Update a working tree along its branch.
2076
This will update the branch if its bound too, which means we have
2077
multiple trees involved:
2079
- The new basis tree of the master.
2080
- The old basis tree of the branch.
2081
- The old basis tree of the working tree.
2082
- The current working tree state.
2084
Pathologically, all three may be different, and non-ancestors of each
2085
other. Conceptually we want to:
2087
- Preserve the wt.basis->wt.state changes
2088
- Transform the wt.basis to the new master basis.
2089
- Apply a merge of the old branch basis to get any 'local' changes from
2091
- Restore the wt.basis->wt.state changes.
2093
There isn't a single operation at the moment to do that, so we:
2094
- Merge current state -> basis tree of the master w.r.t. the old tree
2096
- Do a 'normal' merge of the old branch basis if it is relevant.
2098
if self.branch.get_master_branch(possible_transports) is not None:
2100
update_branch = True
2102
self.lock_tree_write()
2103
update_branch = False
2106
old_tip = self.branch.update(possible_transports)
2109
return self._update_tree(old_tip, change_reporter)
2113
@needs_tree_write_lock
2114
def _update_tree(self, old_tip=None, change_reporter=None):
2115
"""Update a tree to the master branch.
2117
:param old_tip: if supplied, the previous tip revision the branch,
2118
before it was changed to the master branch's tip.
2120
# here if old_tip is not None, it is the old tip of the branch before
2121
# it was updated from the master branch. This should become a pending
2122
# merge in the working tree to preserve the user existing work. we
2123
# cant set that until we update the working trees last revision to be
2124
# one from the new branch, because it will just get absorbed by the
2125
# parent de-duplication logic.
2127
# We MUST save it even if an error occurs, because otherwise the users
2128
# local work is unreferenced and will appear to have been lost.
2132
last_rev = self.get_parent_ids()[0]
2134
last_rev = _mod_revision.NULL_REVISION
2135
if last_rev != _mod_revision.ensure_null(self.branch.last_revision()):
2136
# merge tree state up to new branch tip.
2137
basis = self.basis_tree()
2140
to_tree = self.branch.basis_tree()
2141
if basis.inventory.root is None:
2142
self.set_root_id(to_tree.inventory.root.file_id)
2144
result += merge.merge_inner(
2149
change_reporter=change_reporter)
2152
# TODO - dedup parents list with things merged by pull ?
2153
# reuse the tree we've updated to to set the basis:
2154
parent_trees = [(self.branch.last_revision(), to_tree)]
2155
merges = self.get_parent_ids()[1:]
2156
# Ideally we ask the tree for the trees here, that way the working
2157
# tree can decide whether to give us teh entire tree or give us a
2158
# lazy initialised tree. dirstate for instance will have the trees
2159
# in ram already, whereas a last-revision + basis-inventory tree
2160
# will not, but also does not need them when setting parents.
2161
for parent in merges:
2162
parent_trees.append(
2163
(parent, self.branch.repository.revision_tree(parent)))
2164
if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2165
parent_trees.append(
2166
(old_tip, self.branch.repository.revision_tree(old_tip)))
2167
self.set_parent_trees(parent_trees)
2168
last_rev = parent_trees[0][0]
2170
# the working tree had the same last-revision as the master
2171
# branch did. We may still have pivot local work from the local
2172
# branch into old_tip:
2173
if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2174
self.add_parent_tree_id(old_tip)
2175
if (old_tip is not None and not _mod_revision.is_null(old_tip)
2176
and old_tip != last_rev):
2177
# our last revision was not the prior branch last revision
2178
# and we have converted that last revision to a pending merge.
2179
# base is somewhere between the branch tip now
2180
# and the now pending merge
2182
# Since we just modified the working tree and inventory, flush out
2183
# the current state, before we modify it again.
2184
# TODO: jam 20070214 WorkingTree3 doesn't require this, dirstate
2185
# requires it only because TreeTransform directly munges the
2186
# inventory and calls tree._write_inventory(). Ultimately we
2187
# should be able to remove this extra flush.
2189
graph = self.branch.repository.get_graph()
2190
base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2192
base_tree = self.branch.repository.revision_tree(base_rev_id)
2193
other_tree = self.branch.repository.revision_tree(old_tip)
2194
result += merge.merge_inner(
2199
change_reporter=change_reporter)
2202
def _write_hashcache_if_dirty(self):
2203
"""Write out the hashcache if it is dirty."""
2204
if self._hashcache.needs_write:
2206
self._hashcache.write()
2208
if e.errno not in (errno.EPERM, errno.EACCES):
2210
# TODO: jam 20061219 Should this be a warning? A single line
2211
# warning might be sufficient to let the user know what
2213
mutter('Could not write hashcache for %s\nError: %s',
2214
self._hashcache.cache_file_name(), e)
2216
@needs_tree_write_lock
2217
def _write_inventory(self, inv):
2218
"""Write inventory as the current inventory."""
2219
self._set_inventory(inv, dirty=True)
2222
def set_conflicts(self, arg):
2223
raise errors.UnsupportedOperation(self.set_conflicts, self)
2225
def add_conflicts(self, arg):
2226
raise errors.UnsupportedOperation(self.add_conflicts, self)
2229
def conflicts(self):
2230
conflicts = _mod_conflicts.ConflictList()
2231
for conflicted in self._iter_conflicts():
2234
if file_kind(self.abspath(conflicted)) != "file":
2236
except errors.NoSuchFile:
2239
for suffix in ('.THIS', '.OTHER'):
2241
kind = file_kind(self.abspath(conflicted+suffix))
2244
except errors.NoSuchFile:
2248
ctype = {True: 'text conflict', False: 'contents conflict'}[text]
2249
conflicts.append(_mod_conflicts.Conflict.factory(ctype,
2251
file_id=self.path2id(conflicted)))
2254
def walkdirs(self, prefix=""):
2255
"""Walk the directories of this tree.
2257
returns a generator which yields items in the form:
2258
((curren_directory_path, fileid),
2259
[(file1_path, file1_name, file1_kind, (lstat), file1_id,
2262
This API returns a generator, which is only valid during the current
2263
tree transaction - within a single lock_read or lock_write duration.
2265
If the tree is not locked, it may cause an error to be raised,
2266
depending on the tree implementation.
2268
disk_top = self.abspath(prefix)
2269
if disk_top.endswith('/'):
2270
disk_top = disk_top[:-1]
2271
top_strip_len = len(disk_top) + 1
2272
inventory_iterator = self._walkdirs(prefix)
2273
disk_iterator = osutils.walkdirs(disk_top, prefix)
2275
current_disk = disk_iterator.next()
2276
disk_finished = False
2278
if not (e.errno == errno.ENOENT or
2279
(sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
2282
disk_finished = True
2284
current_inv = inventory_iterator.next()
2285
inv_finished = False
2286
except StopIteration:
2289
while not inv_finished or not disk_finished:
2290
if not disk_finished:
2291
# strip out .bzr dirs
2292
if current_disk[0][1][top_strip_len:] == '':
2293
# osutils.walkdirs can be made nicer -
2294
# yield the path-from-prefix rather than the pathjoined
2296
bzrdir_loc = bisect_left(current_disk[1], ('.bzr', '.bzr'))
2297
if current_disk[1][bzrdir_loc][0] == '.bzr':
2298
# we dont yield the contents of, or, .bzr itself.
2299
del current_disk[1][bzrdir_loc]
2301
# everything is unknown
2304
# everything is missing
2307
direction = cmp(current_inv[0][0], current_disk[0][0])
2309
# disk is before inventory - unknown
2310
dirblock = [(relpath, basename, kind, stat, None, None) for
2311
relpath, basename, kind, stat, top_path in current_disk[1]]
2312
yield (current_disk[0][0], None), dirblock
2314
current_disk = disk_iterator.next()
2315
except StopIteration:
2316
disk_finished = True
2318
# inventory is before disk - missing.
2319
dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
2320
for relpath, basename, dkind, stat, fileid, kind in
2322
yield (current_inv[0][0], current_inv[0][1]), dirblock
2324
current_inv = inventory_iterator.next()
2325
except StopIteration:
2328
# versioned present directory
2329
# merge the inventory and disk data together
2331
for relpath, subiterator in itertools.groupby(sorted(
2332
current_inv[1] + current_disk[1], key=operator.itemgetter(0)), operator.itemgetter(1)):
2333
path_elements = list(subiterator)
2334
if len(path_elements) == 2:
2335
inv_row, disk_row = path_elements
2336
# versioned, present file
2337
dirblock.append((inv_row[0],
2338
inv_row[1], disk_row[2],
2339
disk_row[3], inv_row[4],
2341
elif len(path_elements[0]) == 5:
2343
dirblock.append((path_elements[0][0],
2344
path_elements[0][1], path_elements[0][2],
2345
path_elements[0][3], None, None))
2346
elif len(path_elements[0]) == 6:
2347
# versioned, absent file.
2348
dirblock.append((path_elements[0][0],
2349
path_elements[0][1], 'unknown', None,
2350
path_elements[0][4], path_elements[0][5]))
2352
raise NotImplementedError('unreachable code')
2353
yield current_inv[0], dirblock
2355
current_inv = inventory_iterator.next()
2356
except StopIteration:
2359
current_disk = disk_iterator.next()
2360
except StopIteration:
2361
disk_finished = True
2363
def _walkdirs(self, prefix=""):
2364
"""Walk the directories of this tree.
2366
:prefix: is used as the directrory to start with.
2367
returns a generator which yields items in the form:
2368
((curren_directory_path, fileid),
2369
[(file1_path, file1_name, file1_kind, None, file1_id,
2372
_directory = 'directory'
2373
# get the root in the inventory
2374
inv = self.inventory
2375
top_id = inv.path2id(prefix)
2379
pending = [(prefix, '', _directory, None, top_id, None)]
2382
currentdir = pending.pop()
2383
# 0 - relpath, 1- basename, 2- kind, 3- stat, 4-id, 5-kind
2384
top_id = currentdir[4]
2386
relroot = currentdir[0] + '/'
2389
# FIXME: stash the node in pending
2391
for name, child in entry.sorted_children():
2392
dirblock.append((relroot + name, name, child.kind, None,
2393
child.file_id, child.kind
2395
yield (currentdir[0], entry.file_id), dirblock
2396
# push the user specified dirs from dirblock
2397
for dir in reversed(dirblock):
2398
if dir[2] == _directory:
2401
@needs_tree_write_lock
2402
def auto_resolve(self):
2403
"""Automatically resolve text conflicts according to contents.
2405
Only text conflicts are auto_resolvable. Files with no conflict markers
2406
are considered 'resolved', because bzr always puts conflict markers
2407
into files that have text conflicts. The corresponding .THIS .BASE and
2408
.OTHER files are deleted, as per 'resolve'.
2409
:return: a tuple of ConflictLists: (un_resolved, resolved).
2411
un_resolved = _mod_conflicts.ConflictList()
2412
resolved = _mod_conflicts.ConflictList()
2413
conflict_re = re.compile('^(<{7}|={7}|>{7})')
2414
for conflict in self.conflicts():
2415
if (conflict.typestring != 'text conflict' or
2416
self.kind(conflict.file_id) != 'file'):
2417
un_resolved.append(conflict)
2419
my_file = open(self.id2abspath(conflict.file_id), 'rb')
2421
for line in my_file:
2422
if conflict_re.search(line):
2423
un_resolved.append(conflict)
2426
resolved.append(conflict)
2429
resolved.remove_files(self)
2430
self.set_conflicts(un_resolved)
2431
return un_resolved, resolved
2433
def _validate(self):
2434
"""Validate internal structures.
2436
This is meant mostly for the test suite. To give it a chance to detect
2437
corruption after actions have occurred. The default implementation is a
2440
:return: None. An exception should be raised if there is an error.
2445
class WorkingTree2(WorkingTree):
2446
"""This is the Format 2 working tree.
2448
This was the first weave based working tree.
2449
- uses os locks for locking.
2450
- uses the branch last-revision.
2453
def __init__(self, *args, **kwargs):
2454
super(WorkingTree2, self).__init__(*args, **kwargs)
2455
# WorkingTree2 has more of a constraint that self._inventory must
2456
# exist. Because this is an older format, we don't mind the overhead
2457
# caused by the extra computation here.
2459
# Newer WorkingTree's should only have self._inventory set when they
2461
if self._inventory is None:
2462
self.read_working_inventory()
2464
def lock_tree_write(self):
2465
"""See WorkingTree.lock_tree_write().
2467
In Format2 WorkingTrees we have a single lock for the branch and tree
2468
so lock_tree_write() degrades to lock_write().
2470
self.branch.lock_write()
2472
return self._control_files.lock_write()
2474
self.branch.unlock()
2478
# do non-implementation specific cleanup
2481
# we share control files:
2482
if self._control_files._lock_count == 3:
2483
# _inventory_is_modified is always False during a read lock.
2484
if self._inventory_is_modified:
2486
self._write_hashcache_if_dirty()
2488
# reverse order of locking.
2490
return self._control_files.unlock()
2492
self.branch.unlock()
2495
class WorkingTree3(WorkingTree):
2496
"""This is the Format 3 working tree.
2498
This differs from the base WorkingTree by:
2499
- having its own file lock
2500
- having its own last-revision property.
2502
This is new in bzr 0.8
2506
def _last_revision(self):
2507
"""See Mutable.last_revision."""
2509
return self._control_files.get('last-revision').read()
2510
except errors.NoSuchFile:
2511
return _mod_revision.NULL_REVISION
2513
def _change_last_revision(self, revision_id):
2514
"""See WorkingTree._change_last_revision."""
2515
if revision_id is None or revision_id == NULL_REVISION:
2517
self._control_files._transport.delete('last-revision')
2518
except errors.NoSuchFile:
2522
self._control_files.put_bytes('last-revision', revision_id)
2525
@needs_tree_write_lock
2526
def set_conflicts(self, conflicts):
2527
self._put_rio('conflicts', conflicts.to_stanzas(),
2530
@needs_tree_write_lock
2531
def add_conflicts(self, new_conflicts):
2532
conflict_set = set(self.conflicts())
2533
conflict_set.update(set(list(new_conflicts)))
2534
self.set_conflicts(_mod_conflicts.ConflictList(sorted(conflict_set,
2535
key=_mod_conflicts.Conflict.sort_key)))
2538
def conflicts(self):
2540
confile = self._control_files.get('conflicts')
2541
except errors.NoSuchFile:
2542
return _mod_conflicts.ConflictList()
2544
if confile.next() != CONFLICT_HEADER_1 + '\n':
2545
raise errors.ConflictFormatError()
2546
except StopIteration:
2547
raise errors.ConflictFormatError()
2548
return _mod_conflicts.ConflictList.from_stanzas(RioReader(confile))
2551
# do non-implementation specific cleanup
2553
if self._control_files._lock_count == 1:
2554
# _inventory_is_modified is always False during a read lock.
2555
if self._inventory_is_modified:
2557
self._write_hashcache_if_dirty()
2558
# reverse order of locking.
2560
return self._control_files.unlock()
2562
self.branch.unlock()
2565
def get_conflicted_stem(path):
2566
for suffix in _mod_conflicts.CONFLICT_SUFFIXES:
2567
if path.endswith(suffix):
2568
return path[:-len(suffix)]
2571
@deprecated_function(zero_eight)
2572
def is_control_file(filename):
2573
"""See WorkingTree.is_control_filename(filename)."""
2574
## FIXME: better check
2575
filename = normpath(filename)
2576
while filename != '':
2577
head, tail = os.path.split(filename)
2578
## mutter('check %r for control file' % ((head, tail),))
2581
if filename == head:
2587
class WorkingTreeFormat(object):
2588
"""An encapsulation of the initialization and open routines for a format.
2590
Formats provide three things:
2591
* An initialization routine,
2595
Formats are placed in an dict by their format string for reference
2596
during workingtree opening. Its not required that these be instances, they
2597
can be classes themselves with class methods - it simply depends on
2598
whether state is needed for a given format or not.
2600
Once a format is deprecated, just deprecate the initialize and open
2601
methods on the format class. Do not deprecate the object, as the
2602
object will be created every time regardless.
2605
_default_format = None
2606
"""The default format used for new trees."""
2609
"""The known formats."""
2611
requires_rich_root = False
2613
upgrade_recommended = False
2616
def find_format(klass, a_bzrdir):
2617
"""Return the format for the working tree object in a_bzrdir."""
2619
transport = a_bzrdir.get_workingtree_transport(None)
2620
format_string = transport.get("format").read()
2621
return klass._formats[format_string]
2622
except errors.NoSuchFile:
2623
raise errors.NoWorkingTree(base=transport.base)
2625
raise errors.UnknownFormatError(format=format_string)
2627
def __eq__(self, other):
2628
return self.__class__ is other.__class__
2630
def __ne__(self, other):
2631
return not (self == other)
2634
def get_default_format(klass):
2635
"""Return the current default format."""
2636
return klass._default_format
2638
def get_format_string(self):
2639
"""Return the ASCII format string that identifies this format."""
2640
raise NotImplementedError(self.get_format_string)
2642
def get_format_description(self):
2643
"""Return the short description for this format."""
2644
raise NotImplementedError(self.get_format_description)
2646
def is_supported(self):
2647
"""Is this format supported?
2649
Supported formats can be initialized and opened.
2650
Unsupported formats may not support initialization or committing or
2651
some other features depending on the reason for not being supported.
2656
def register_format(klass, format):
2657
klass._formats[format.get_format_string()] = format
2660
def set_default_format(klass, format):
2661
klass._default_format = format
2664
def unregister_format(klass, format):
2665
assert klass._formats[format.get_format_string()] is format
2666
del klass._formats[format.get_format_string()]
2669
class WorkingTreeFormat2(WorkingTreeFormat):
2670
"""The second working tree format.
2672
This format modified the hash cache from the format 1 hash cache.
2675
upgrade_recommended = True
2677
def get_format_description(self):
2678
"""See WorkingTreeFormat.get_format_description()."""
2679
return "Working tree format 2"
2681
def stub_initialize_remote(self, control_files):
2682
"""As a special workaround create critical control files for a remote working tree
2684
This ensures that it can later be updated and dealt with locally,
2685
since BzrDirFormat6 and BzrDirFormat5 cannot represent dirs with
2686
no working tree. (See bug #43064).
2690
xml5.serializer_v5.write_inventory(inv, sio, working=True)
2692
control_files.put('inventory', sio)
2694
control_files.put_bytes('pending-merges', '')
2697
def initialize(self, a_bzrdir, revision_id=None):
2698
"""See WorkingTreeFormat.initialize()."""
2699
if not isinstance(a_bzrdir.transport, LocalTransport):
2700
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2701
branch = a_bzrdir.open_branch()
2702
if revision_id is None:
2703
revision_id = _mod_revision.ensure_null(branch.last_revision())
2706
branch.generate_revision_history(revision_id)
2710
wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
2716
basis_tree = branch.repository.revision_tree(revision_id)
2717
if basis_tree.inventory.root is not None:
2718
wt.set_root_id(basis_tree.inventory.root.file_id)
2719
# set the parent list and cache the basis tree.
2720
if _mod_revision.is_null(revision_id):
2723
parent_trees = [(revision_id, basis_tree)]
2724
wt.set_parent_trees(parent_trees)
2725
transform.build_tree(basis_tree, wt)
2729
super(WorkingTreeFormat2, self).__init__()
2730
self._matchingbzrdir = bzrdir.BzrDirFormat6()
2732
def open(self, a_bzrdir, _found=False):
2733
"""Return the WorkingTree object for a_bzrdir
2735
_found is a private parameter, do not use it. It is used to indicate
2736
if format probing has already been done.
2739
# we are being called directly and must probe.
2740
raise NotImplementedError
2741
if not isinstance(a_bzrdir.transport, LocalTransport):
2742
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2743
wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
2749
class WorkingTreeFormat3(WorkingTreeFormat):
2750
"""The second working tree format updated to record a format marker.
2753
- exists within a metadir controlling .bzr
2754
- includes an explicit version marker for the workingtree control
2755
files, separate from the BzrDir format
2756
- modifies the hash cache format
2758
- uses a LockDir to guard access for writes.
2761
upgrade_recommended = True
2763
def get_format_string(self):
2764
"""See WorkingTreeFormat.get_format_string()."""
2765
return "Bazaar-NG Working Tree format 3"
2767
def get_format_description(self):
2768
"""See WorkingTreeFormat.get_format_description()."""
2769
return "Working tree format 3"
2771
_lock_file_name = 'lock'
2772
_lock_class = LockDir
2774
_tree_class = WorkingTree3
2776
def __get_matchingbzrdir(self):
2777
return bzrdir.BzrDirMetaFormat1()
2779
_matchingbzrdir = property(__get_matchingbzrdir)
2781
def _open_control_files(self, a_bzrdir):
2782
transport = a_bzrdir.get_workingtree_transport(None)
2783
return LockableFiles(transport, self._lock_file_name,
2786
def initialize(self, a_bzrdir, revision_id=None):
2787
"""See WorkingTreeFormat.initialize().
2789
revision_id allows creating a working tree at a different
2790
revision than the branch is at.
2792
if not isinstance(a_bzrdir.transport, LocalTransport):
2793
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2794
transport = a_bzrdir.get_workingtree_transport(self)
2795
control_files = self._open_control_files(a_bzrdir)
2796
control_files.create_lock()
2797
control_files.lock_write()
2798
control_files.put_utf8('format', self.get_format_string())
2799
branch = a_bzrdir.open_branch()
2800
if revision_id is None:
2801
revision_id = _mod_revision.ensure_null(branch.last_revision())
2802
# WorkingTree3 can handle an inventory which has a unique root id.
2803
# as of bzr 0.12. However, bzr 0.11 and earlier fail to handle
2804
# those trees. And because there isn't a format bump inbetween, we
2805
# are maintaining compatibility with older clients.
2806
# inv = Inventory(root_id=gen_root_id())
2807
inv = self._initial_inventory()
2808
wt = self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
2814
_control_files=control_files)
2815
wt.lock_tree_write()
2817
basis_tree = branch.repository.revision_tree(revision_id)
2818
# only set an explicit root id if there is one to set.
2819
if basis_tree.inventory.root is not None:
2820
wt.set_root_id(basis_tree.inventory.root.file_id)
2821
if revision_id == NULL_REVISION:
2822
wt.set_parent_trees([])
2824
wt.set_parent_trees([(revision_id, basis_tree)])
2825
transform.build_tree(basis_tree, wt)
2827
# Unlock in this order so that the unlock-triggers-flush in
2828
# WorkingTree is given a chance to fire.
2829
control_files.unlock()
2833
def _initial_inventory(self):
2837
super(WorkingTreeFormat3, self).__init__()
2839
def open(self, a_bzrdir, _found=False):
2840
"""Return the WorkingTree object for a_bzrdir
2842
_found is a private parameter, do not use it. It is used to indicate
2843
if format probing has already been done.
2846
# we are being called directly and must probe.
2847
raise NotImplementedError
2848
if not isinstance(a_bzrdir.transport, LocalTransport):
2849
raise errors.NotLocalUrl(a_bzrdir.transport.base)
2850
wt = self._open(a_bzrdir, self._open_control_files(a_bzrdir))
2853
def _open(self, a_bzrdir, control_files):
2854
"""Open the tree itself.
2856
:param a_bzrdir: the dir for the tree.
2857
:param control_files: the control files for the tree.
2859
return self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
2863
_control_files=control_files)
2866
return self.get_format_string()
2869
__default_format = WorkingTreeFormat4()
2870
WorkingTreeFormat.register_format(__default_format)
2871
WorkingTreeFormat.register_format(WorkingTreeFormat3())
2872
WorkingTreeFormat.set_default_format(__default_format)
2873
# formats which have no format string are not discoverable
2874
# and not independently creatable, so are not registered.
2875
_legacy_formats = [WorkingTreeFormat2(),
added
removed
bzrlib/workingtree.py
