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# Copyright (C) 2005, 2006, 2007, 2008, 2009 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""WorkingTree4 format and implementation.
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WorkingTree4 provides the dirstate based working tree logic.
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To get a WorkingTree, call bzrdir.open_workingtree() or
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WorkingTree.open(dir).
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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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revision as _mod_revision,
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.filters import filtered_input_file, internal_size_sha_file_byname
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from bzrlib.inventory import Inventory, ROOT_ID, entry_factory
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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
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from bzrlib.transport.local import LocalTransport
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from bzrlib.tree import InterTree
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from bzrlib.tree import Tree
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from bzrlib.workingtree import WorkingTree, WorkingTree3, WorkingTreeFormat3
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class DirStateWorkingTree(WorkingTree3):
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def __init__(self, basedir,
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"""Construct a WorkingTree for basedir.
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If the branch is not supplied, it is opened automatically.
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If the branch is supplied, it must be the branch for this basedir.
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(branch.base is not cross checked, because for remote branches that
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would be meaningless).
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self._format = _format
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basedir = safe_unicode(basedir)
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mutter("opening working tree %r", basedir)
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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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# assume all other formats have their own control files.
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self._control_files = _control_files
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self._transport = self._control_files._transport
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# during a read or write lock these objects are set, and are
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# None the rest of the time.
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self._inventory = None
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self._setup_directory_is_tree_reference()
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self._detect_case_handling()
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self._rules_searcher = None
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self.views = self._make_views()
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#--- allow tests to select the dirstate iter_changes implementation
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self._iter_changes = dirstate._process_entry
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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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state = self.current_dirstate()
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for f, file_id, kind in zip(files, ids, kinds):
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# special case tree root handling.
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if f == '' and self.path2id(f) == ROOT_ID:
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state.set_path_id('', generate_ids.gen_file_id(f))
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file_id = generate_ids.gen_file_id(f)
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# deliberately add the file with no cached stat or sha1
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# - on the first access it will be gathered, and we can
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# always change this once tests are all passing.
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state.add(f, file_id, kind, None, '')
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self._make_dirty(reset_inventory=True)
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def _make_dirty(self, reset_inventory):
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"""Make the tree state dirty.
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:param reset_inventory: True if the cached inventory should be removed
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(presuming there is one).
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if reset_inventory and self._inventory is not None:
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self._inventory = None
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@needs_tree_write_lock
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def add_reference(self, sub_tree):
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# use standard implementation, which calls back to self._add
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# So we don't store the reference_revision in the working dirstate,
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# it's just recorded at the moment of commit.
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self._add_reference(sub_tree)
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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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# if the dirstate is locked by an active process, reject the break lock
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if self._dirstate is None:
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state = self._current_dirstate()
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if state._lock_token is not None:
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# we already have it locked. sheese, cant break our own lock.
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raise errors.LockActive(self.basedir)
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# try for a write lock - need permission to get one anyhow
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except errors.LockContention:
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# oslocks fail when a process is still live: fail.
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# TODO: get the locked lockdir info and give to the user to
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# assist in debugging.
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raise errors.LockActive(self.basedir)
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self._dirstate = None
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self._control_files.break_lock()
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self.branch.break_lock()
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def _comparison_data(self, entry, path):
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kind, executable, stat_value = \
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WorkingTree3._comparison_data(self, entry, path)
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# it looks like a plain directory, but it's really a reference -- see
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if (self._repo_supports_tree_reference and kind == 'directory'
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and entry is not None and entry.kind == 'tree-reference'):
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kind = 'tree-reference'
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return kind, executable, stat_value
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def commit(self, message=None, revprops=None, *args, **kwargs):
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# mark the tree as dirty post commit - commit
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# can change the current versioned list by doing deletes.
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result = WorkingTree3.commit(self, message, revprops, *args, **kwargs)
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self._make_dirty(reset_inventory=True)
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def current_dirstate(self):
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"""Return the current dirstate object.
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This is not part of the tree interface and only exposed for ease of
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:raises errors.NotWriteLocked: when not in a lock.
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self._must_be_locked()
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return self._current_dirstate()
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def _current_dirstate(self):
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"""Internal function that does not check lock status.
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This is needed for break_lock which also needs the dirstate.
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if self._dirstate is not None:
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return self._dirstate
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local_path = self.bzrdir.get_workingtree_transport(None
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).local_abspath('dirstate')
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self._dirstate = dirstate.DirState.on_file(local_path,
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self._sha1_provider())
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return self._dirstate
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def _sha1_provider(self):
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"""A function that returns a SHA1Provider suitable for this tree.
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:return: None if content filtering is not supported by this tree.
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Otherwise, a SHA1Provider is returned that sha's the canonical
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form of files, i.e. after read filters are applied.
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if self.supports_content_filtering():
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return ContentFilterAwareSHA1Provider(self)
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def filter_unversioned_files(self, paths):
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"""Filter out paths that are versioned.
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:return: set of paths.
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# TODO: make a generic multi-bisect routine roughly that should list
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# the paths, then process one half at a time recursively, and feed the
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# results of each bisect in further still
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paths = sorted(paths)
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state = self.current_dirstate()
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# TODO we want a paths_to_dirblocks helper I think
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dirname, basename = os.path.split(path.encode('utf8'))
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_, _, _, path_is_versioned = state._get_block_entry_index(
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dirname, basename, 0)
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if not path_is_versioned:
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"""Write all cached data to disk."""
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if self._control_files._lock_mode != 'w':
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raise errors.NotWriteLocked(self)
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self.current_dirstate().save()
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self._inventory = None
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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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kinds[pos] = self._kind(f)
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def _generate_inventory(self):
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"""Create and set self.inventory from the dirstate object.
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This is relatively expensive: we have to walk the entire dirstate.
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Ideally we would not, and can deprecate this function.
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#: uncomment to trap on inventory requests.
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# import pdb;pdb.set_trace()
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state = self.current_dirstate()
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state._read_dirblocks_if_needed()
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root_key, current_entry = self._get_entry(path='')
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current_id = root_key[2]
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if not (current_entry[0][0] == 'd'): # directory
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raise AssertionError(current_entry)
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inv = Inventory(root_id=current_id)
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# Turn some things into local variables
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minikind_to_kind = dirstate.DirState._minikind_to_kind
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factory = entry_factory
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utf8_decode = cache_utf8._utf8_decode
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# we could do this straight out of the dirstate; it might be fast
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# and should be profiled - RBC 20070216
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parent_ies = {'' : inv.root}
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for block in state._dirblocks[1:]: # skip the root
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parent_ie = parent_ies[dirname]
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# all the paths in this block are not versioned in this tree
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for key, entry in block[1]:
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minikind, link_or_sha1, size, executable, stat = entry[0]
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if minikind in ('a', 'r'): # absent, relocated
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# a parent tree only entry
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name_unicode = utf8_decode(name)[0]
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kind = minikind_to_kind[minikind]
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inv_entry = factory[kind](file_id, name_unicode,
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# This is only needed on win32, where this is the only way
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# we know the executable bit.
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inv_entry.executable = executable
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# not strictly needed: working tree
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#inv_entry.text_size = size
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#inv_entry.text_sha1 = sha1
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elif kind == 'directory':
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# add this entry to the parent map.
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parent_ies[(dirname + '/' + name).strip('/')] = inv_entry
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elif kind == 'tree-reference':
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if not self._repo_supports_tree_reference:
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raise errors.UnsupportedOperation(
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self._generate_inventory,
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self.branch.repository)
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inv_entry.reference_revision = link_or_sha1 or None
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elif kind != 'symlink':
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raise AssertionError("unknown kind %r" % kind)
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# These checks cost us around 40ms on a 55k entry tree
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if file_id in inv_byid:
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raise AssertionError('file_id %s already in'
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' inventory as %s' % (file_id, inv_byid[file_id]))
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if name_unicode in parent_ie.children:
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raise AssertionError('name %r already in parent'
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inv_byid[file_id] = inv_entry
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parent_ie.children[name_unicode] = inv_entry
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self._inventory = inv
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def _get_entry(self, file_id=None, path=None):
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"""Get the dirstate row for file_id or path.
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If either file_id or path is supplied, it is used as the key to lookup.
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If both are supplied, the fastest lookup is used, and an error is
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raised if they do not both point at the same row.
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:param file_id: An optional unicode file_id to be looked up.
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:param path: An optional unicode path to be looked up.
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:return: The dirstate row tuple for path/file_id, or (None, None)
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if file_id is None and path is None:
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raise errors.BzrError('must supply file_id or path')
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state = self.current_dirstate()
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path = path.encode('utf8')
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return state._get_entry(0, fileid_utf8=file_id, path_utf8=path)
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def get_file_sha1(self, file_id, path=None, stat_value=None):
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# check file id is valid unconditionally.
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entry = self._get_entry(file_id=file_id, path=path)
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raise errors.NoSuchId(self, file_id)
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path = pathjoin(entry[0][0], entry[0][1]).decode('utf8')
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file_abspath = self.abspath(path)
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state = self.current_dirstate()
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if stat_value is None:
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stat_value = os.lstat(file_abspath)
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if e.errno == errno.ENOENT:
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link_or_sha1 = dirstate.update_entry(state, entry, file_abspath,
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stat_value=stat_value)
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if entry[1][0][0] == 'f':
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if link_or_sha1 is None:
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file_obj, statvalue = self.get_file_with_stat(file_id, path)
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sha1 = osutils.sha_file(file_obj)
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self._observed_sha1(file_id, path, (sha1, statvalue))
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def _get_inventory(self):
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"""Get the inventory for the tree. This is only valid within a lock."""
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if 'evil' in debug.debug_flags:
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trace.mutter_callsite(2,
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"accessing .inventory forces a size of tree translation.")
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if self._inventory is not None:
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return self._inventory
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self._must_be_locked()
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self._generate_inventory()
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return self._inventory
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inventory = property(_get_inventory,
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doc="Inventory of this Tree")
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def get_parent_ids(self):
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"""See Tree.get_parent_ids.
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This implementation requests the ids list from the dirstate file.
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return self.current_dirstate().get_parent_ids()
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def get_reference_revision(self, file_id, path=None):
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# referenced tree's revision is whatever's currently there
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return self.get_nested_tree(file_id, path).last_revision()
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def get_nested_tree(self, file_id, path=None):
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path = self.id2path(file_id)
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# else: check file_id is at path?
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return WorkingTree.open(self.abspath(path))
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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._get_entry(path='')[0][2]
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def has_id(self, file_id):
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state = self.current_dirstate()
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row, parents = self._get_entry(file_id=file_id)
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return osutils.lexists(pathjoin(
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self.basedir, row[0].decode('utf8'), row[1].decode('utf8')))
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def has_or_had_id(self, file_id):
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state = self.current_dirstate()
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row, parents = self._get_entry(file_id=file_id)
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return row is not None
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def id2path(self, file_id):
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"Convert a file-id to a path."
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state = self.current_dirstate()
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entry = self._get_entry(file_id=file_id)
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if entry == (None, None):
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raise errors.NoSuchId(tree=self, file_id=file_id)
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path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
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return path_utf8.decode('utf8')
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def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
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entry = self._get_entry(path=path)
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if entry == (None, None):
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return False # Missing entries are not executable
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return entry[1][0][3] # Executable?
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if not osutils.supports_executable():
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def is_executable(self, file_id, path=None):
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"""Test if a file is executable or not.
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Note: The caller is expected to take a read-lock before calling this.
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entry = self._get_entry(file_id=file_id, path=path)
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if entry == (None, None):
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return entry[1][0][3]
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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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"""Test if a file is executable or not.
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Note: The caller is expected to take a read-lock before calling this.
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self._must_be_locked()
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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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def all_file_ids(self):
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"""See Tree.iter_all_file_ids"""
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self._must_be_locked()
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for key, tree_details in self.current_dirstate()._iter_entries():
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if tree_details[0][0] in ('a', 'r'): # relocated
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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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for key, tree_details in self.current_dirstate()._iter_entries():
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if tree_details[0][0] in ('a', 'r'): # absent, relocated
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# not relevant to the working tree
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path = pathjoin(self.basedir, key[0].decode('utf8'), key[1].decode('utf8'))
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if osutils.lexists(path):
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result.append(key[2])
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def iter_references(self):
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if not self._repo_supports_tree_reference:
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# When the repo doesn't support references, we will have nothing to
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for key, tree_details in self.current_dirstate()._iter_entries():
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if tree_details[0][0] in ('a', 'r'): # absent, relocated
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# not relevant to the working tree
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# the root is not a reference.
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relpath = pathjoin(key[0].decode('utf8'), key[1].decode('utf8'))
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if self._kind(relpath) == 'tree-reference':
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yield relpath, key[2]
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except errors.NoSuchFile:
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# path is missing on disk.
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def _observed_sha1(self, file_id, path, (sha1, statvalue)):
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"""See MutableTree._observed_sha1."""
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state = self.current_dirstate()
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entry = self._get_entry(file_id=file_id, path=path)
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state._observed_sha1(entry, sha1, statvalue)
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def kind(self, file_id):
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"""Return the kind of a file.
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This is always the actual kind that's on disk, regardless of what it
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Note: The caller is expected to take a read-lock before calling this.
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relpath = self.id2path(file_id)
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raise AssertionError(
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"path for id {%s} is None!" % file_id)
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return self._kind(relpath)
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def _kind(self, relpath):
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abspath = self.abspath(relpath)
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kind = file_kind(abspath)
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if (self._repo_supports_tree_reference and kind == 'directory'):
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entry = self._get_entry(path=relpath)
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if entry[1] is not None:
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if entry[1][0][0] == 't':
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kind = 'tree-reference'
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def _last_revision(self):
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"""See Mutable.last_revision."""
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parent_ids = self.current_dirstate().get_parent_ids()
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return _mod_revision.NULL_REVISION
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"""See Branch.lock_read, and WorkingTree.unlock."""
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self.branch.lock_read()
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self._control_files.lock_read()
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state = self.current_dirstate()
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if not state._lock_token:
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# set our support for tree references from the repository in
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self._repo_supports_tree_reference = getattr(
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self.branch.repository._format, "supports_tree_reference",
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self._control_files.unlock()
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def _lock_self_write(self):
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"""This should be called after the branch is locked."""
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self._control_files.lock_write()
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state = self.current_dirstate()
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if not state._lock_token:
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# set our support for tree references from the repository in
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self._repo_supports_tree_reference = getattr(
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self.branch.repository._format, "supports_tree_reference",
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self._control_files.unlock()
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def lock_tree_write(self):
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"""See MutableTree.lock_tree_write, and WorkingTree.unlock."""
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self.branch.lock_read()
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self._lock_self_write()
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def lock_write(self):
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"""See MutableTree.lock_write, and WorkingTree.unlock."""
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self.branch.lock_write()
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self._lock_self_write()
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@needs_tree_write_lock
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def move(self, from_paths, to_dir, after=False):
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"""See WorkingTree.move()."""
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state = self.current_dirstate()
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if isinstance(from_paths, basestring):
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to_dir_utf8 = to_dir.encode('utf8')
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to_entry_dirname, to_basename = os.path.split(to_dir_utf8)
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id_index = state._get_id_index()
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# check destination directory
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# get the details for it
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to_entry_block_index, to_entry_entry_index, dir_present, entry_present = \
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state._get_block_entry_index(to_entry_dirname, to_basename, 0)
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if not entry_present:
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raise errors.BzrMoveFailedError('', to_dir,
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errors.NotVersionedError(to_dir))
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to_entry = state._dirblocks[to_entry_block_index][1][to_entry_entry_index]
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# get a handle on the block itself.
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to_block_index = state._ensure_block(
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to_entry_block_index, to_entry_entry_index, to_dir_utf8)
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to_block = state._dirblocks[to_block_index]
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to_abs = self.abspath(to_dir)
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if not isdir(to_abs):
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raise errors.BzrMoveFailedError('',to_dir,
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errors.NotADirectory(to_abs))
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if to_entry[1][0][0] != 'd':
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raise errors.BzrMoveFailedError('',to_dir,
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errors.NotADirectory(to_abs))
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if self._inventory is not None:
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update_inventory = True
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to_dir_id = to_entry[0][2]
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to_dir_ie = inv[to_dir_id]
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update_inventory = False
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def move_one(old_entry, from_path_utf8, minikind, executable,
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fingerprint, packed_stat, size,
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to_block, to_key, to_path_utf8):
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state._make_absent(old_entry)
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from_key = old_entry[0]
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lambda:state.update_minimal(from_key,
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executable=executable,
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fingerprint=fingerprint,
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packed_stat=packed_stat,
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path_utf8=from_path_utf8))
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state.update_minimal(to_key,
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executable=executable,
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fingerprint=fingerprint,
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packed_stat=packed_stat,
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path_utf8=to_path_utf8)
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added_entry_index, _ = state._find_entry_index(to_key, to_block[1])
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new_entry = to_block[1][added_entry_index]
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rollbacks.append(lambda:state._make_absent(new_entry))
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for from_rel in from_paths:
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# from_rel is 'pathinroot/foo/bar'
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from_rel_utf8 = from_rel.encode('utf8')
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from_dirname, from_tail = osutils.split(from_rel)
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from_dirname, from_tail_utf8 = osutils.split(from_rel_utf8)
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from_entry = self._get_entry(path=from_rel)
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if from_entry == (None, None):
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raise errors.BzrMoveFailedError(from_rel,to_dir,
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errors.NotVersionedError(path=from_rel))
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from_id = from_entry[0][2]
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to_rel = pathjoin(to_dir, from_tail)
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to_rel_utf8 = pathjoin(to_dir_utf8, from_tail_utf8)
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item_to_entry = self._get_entry(path=to_rel)
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if item_to_entry != (None, None):
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raise errors.BzrMoveFailedError(from_rel, to_rel,
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"Target is already versioned.")
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if from_rel == to_rel:
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raise errors.BzrMoveFailedError(from_rel, to_rel,
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"Source and target are identical.")
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from_missing = not self.has_filename(from_rel)
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to_missing = not self.has_filename(to_rel)
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raise errors.BzrMoveFailedError(from_rel, to_rel,
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errors.NoSuchFile(path=to_rel,
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extra="New file has not been created yet"))
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# neither path exists
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raise errors.BzrRenameFailedError(from_rel, to_rel,
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errors.PathsDoNotExist(paths=(from_rel, to_rel)))
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if from_missing: # implicitly just update our path mapping
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raise errors.RenameFailedFilesExist(from_rel, to_rel)
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def rollback_rename():
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"""A single rename has failed, roll it back."""
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# roll back everything, even if we encounter trouble doing one
736
# TODO: at least log the other exceptions rather than just
737
# losing them mbp 20070307
739
for rollback in reversed(rollbacks):
743
exc_info = sys.exc_info()
745
raise exc_info[0], exc_info[1], exc_info[2]
747
# perform the disk move first - its the most likely failure point.
749
from_rel_abs = self.abspath(from_rel)
750
to_rel_abs = self.abspath(to_rel)
752
osutils.rename(from_rel_abs, to_rel_abs)
754
raise errors.BzrMoveFailedError(from_rel, to_rel, e[1])
755
rollbacks.append(lambda: osutils.rename(to_rel_abs, from_rel_abs))
757
# perform the rename in the inventory next if needed: its easy
761
from_entry = inv[from_id]
762
current_parent = from_entry.parent_id
763
inv.rename(from_id, to_dir_id, from_tail)
765
lambda: inv.rename(from_id, current_parent, from_tail))
766
# finally do the rename in the dirstate, which is a little
767
# tricky to rollback, but least likely to need it.
768
old_block_index, old_entry_index, dir_present, file_present = \
769
state._get_block_entry_index(from_dirname, from_tail_utf8, 0)
770
old_block = state._dirblocks[old_block_index][1]
771
old_entry = old_block[old_entry_index]
772
from_key, old_entry_details = old_entry
773
cur_details = old_entry_details[0]
775
to_key = ((to_block[0],) + from_key[1:3])
776
minikind = cur_details[0]
777
move_one(old_entry, from_path_utf8=from_rel_utf8,
779
executable=cur_details[3],
780
fingerprint=cur_details[1],
781
packed_stat=cur_details[4],
785
to_path_utf8=to_rel_utf8)
788
def update_dirblock(from_dir, to_key, to_dir_utf8):
789
"""Recursively update all entries in this dirblock."""
791
raise AssertionError("renaming root not supported")
792
from_key = (from_dir, '')
793
from_block_idx, present = \
794
state._find_block_index_from_key(from_key)
796
# This is the old record, if it isn't present, then
797
# there is theoretically nothing to update.
798
# (Unless it isn't present because of lazy loading,
799
# but we don't do that yet)
801
from_block = state._dirblocks[from_block_idx]
802
to_block_index, to_entry_index, _, _ = \
803
state._get_block_entry_index(to_key[0], to_key[1], 0)
804
to_block_index = state._ensure_block(
805
to_block_index, to_entry_index, to_dir_utf8)
806
to_block = state._dirblocks[to_block_index]
808
# Grab a copy since move_one may update the list.
809
for entry in from_block[1][:]:
810
if not (entry[0][0] == from_dir):
811
raise AssertionError()
812
cur_details = entry[1][0]
813
to_key = (to_dir_utf8, entry[0][1], entry[0][2])
814
from_path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
815
to_path_utf8 = osutils.pathjoin(to_dir_utf8, entry[0][1])
816
minikind = cur_details[0]
818
# Deleted children of a renamed directory
819
# Do not need to be updated.
820
# Children that have been renamed out of this
821
# directory should also not be updated
823
move_one(entry, from_path_utf8=from_path_utf8,
825
executable=cur_details[3],
826
fingerprint=cur_details[1],
827
packed_stat=cur_details[4],
831
to_path_utf8=to_path_utf8)
833
# We need to move all the children of this
835
update_dirblock(from_path_utf8, to_key,
837
update_dirblock(from_rel_utf8, to_key, to_rel_utf8)
841
result.append((from_rel, to_rel))
842
state._dirblock_state = dirstate.DirState.IN_MEMORY_MODIFIED
843
self._make_dirty(reset_inventory=False)
847
def _must_be_locked(self):
848
if not self._control_files._lock_count:
849
raise errors.ObjectNotLocked(self)
852
"""Initialize the state in this tree to be a new tree."""
856
def path2id(self, path):
857
"""Return the id for path in this tree."""
858
path = path.strip('/')
859
entry = self._get_entry(path=path)
860
if entry == (None, None):
864
def paths2ids(self, paths, trees=[], require_versioned=True):
865
"""See Tree.paths2ids().
867
This specialisation fast-paths the case where all the trees are in the
872
parents = self.get_parent_ids()
874
if not (isinstance(tree, DirStateRevisionTree) and tree._revision_id in
876
return super(DirStateWorkingTree, self).paths2ids(paths,
877
trees, require_versioned)
878
search_indexes = [0] + [1 + parents.index(tree._revision_id) for tree in trees]
879
# -- make all paths utf8 --
882
paths_utf8.add(path.encode('utf8'))
884
# -- paths is now a utf8 path set --
885
# -- get the state object and prepare it.
886
state = self.current_dirstate()
887
if False and (state._dirblock_state == dirstate.DirState.NOT_IN_MEMORY
888
and '' not in paths):
889
paths2ids = self._paths2ids_using_bisect
891
paths2ids = self._paths2ids_in_memory
892
return paths2ids(paths, search_indexes,
893
require_versioned=require_versioned)
895
def _paths2ids_in_memory(self, paths, search_indexes,
896
require_versioned=True):
897
state = self.current_dirstate()
898
state._read_dirblocks_if_needed()
899
def _entries_for_path(path):
900
"""Return a list with all the entries that match path for all ids.
902
dirname, basename = os.path.split(path)
903
key = (dirname, basename, '')
904
block_index, present = state._find_block_index_from_key(key)
906
# the block which should contain path is absent.
909
block = state._dirblocks[block_index][1]
910
entry_index, _ = state._find_entry_index(key, block)
911
# we may need to look at multiple entries at this path: walk while the paths match.
912
while (entry_index < len(block) and
913
block[entry_index][0][0:2] == key[0:2]):
914
result.append(block[entry_index])
917
if require_versioned:
918
# -- check all supplied paths are versioned in a search tree. --
921
path_entries = _entries_for_path(path)
923
# this specified path is not present at all: error
924
all_versioned = False
926
found_versioned = False
927
# for each id at this path
928
for entry in path_entries:
930
for index in search_indexes:
931
if entry[1][index][0] != 'a': # absent
932
found_versioned = True
933
# all good: found a versioned cell
935
if not found_versioned:
936
# none of the indexes was not 'absent' at all ids for this
938
all_versioned = False
940
if not all_versioned:
941
raise errors.PathsNotVersionedError(paths)
942
# -- remove redundancy in supplied paths to prevent over-scanning --
943
search_paths = osutils.minimum_path_selection(paths)
945
# for all search_indexs in each path at or under each element of
946
# search_paths, if the detail is relocated: add the id, and add the
947
# relocated path as one to search if its not searched already. If the
948
# detail is not relocated, add the id.
949
searched_paths = set()
951
def _process_entry(entry):
952
"""Look at search_indexes within entry.
954
If a specific tree's details are relocated, add the relocation
955
target to search_paths if not searched already. If it is absent, do
956
nothing. Otherwise add the id to found_ids.
958
for index in search_indexes:
959
if entry[1][index][0] == 'r': # relocated
960
if not osutils.is_inside_any(searched_paths, entry[1][index][1]):
961
search_paths.add(entry[1][index][1])
962
elif entry[1][index][0] != 'a': # absent
963
found_ids.add(entry[0][2])
965
current_root = search_paths.pop()
966
searched_paths.add(current_root)
967
# process the entries for this containing directory: the rest will be
968
# found by their parents recursively.
969
root_entries = _entries_for_path(current_root)
971
# this specified path is not present at all, skip it.
973
for entry in root_entries:
974
_process_entry(entry)
975
initial_key = (current_root, '', '')
976
block_index, _ = state._find_block_index_from_key(initial_key)
977
while (block_index < len(state._dirblocks) and
978
osutils.is_inside(current_root, state._dirblocks[block_index][0])):
979
for entry in state._dirblocks[block_index][1]:
980
_process_entry(entry)
984
def _paths2ids_using_bisect(self, paths, search_indexes,
985
require_versioned=True):
986
state = self.current_dirstate()
989
split_paths = sorted(osutils.split(p) for p in paths)
990
found = state._bisect_recursive(split_paths)
992
if require_versioned:
993
found_dir_names = set(dir_name_id[:2] for dir_name_id in found)
994
for dir_name in split_paths:
995
if dir_name not in found_dir_names:
996
raise errors.PathsNotVersionedError(paths)
998
for dir_name_id, trees_info in found.iteritems():
999
for index in search_indexes:
1000
if trees_info[index][0] not in ('r', 'a'):
1001
found_ids.add(dir_name_id[2])
1004
def read_working_inventory(self):
1005
"""Read the working inventory.
1007
This is a meaningless operation for dirstate, but we obey it anyhow.
1009
return self.inventory
1012
def revision_tree(self, revision_id):
1013
"""See Tree.revision_tree.
1015
WorkingTree4 supplies revision_trees for any basis tree.
1017
dirstate = self.current_dirstate()
1018
parent_ids = dirstate.get_parent_ids()
1019
if revision_id not in parent_ids:
1020
raise errors.NoSuchRevisionInTree(self, revision_id)
1021
if revision_id in dirstate.get_ghosts():
1022
raise errors.NoSuchRevisionInTree(self, revision_id)
1023
return DirStateRevisionTree(dirstate, revision_id,
1024
self.branch.repository)
1026
@needs_tree_write_lock
1027
def set_last_revision(self, new_revision):
1028
"""Change the last revision in the working tree."""
1029
parents = self.get_parent_ids()
1030
if new_revision in (_mod_revision.NULL_REVISION, None):
1031
if len(parents) >= 2:
1032
raise AssertionError(
1033
"setting the last parent to none with a pending merge is "
1035
self.set_parent_ids([])
1037
self.set_parent_ids([new_revision] + parents[1:],
1038
allow_leftmost_as_ghost=True)
1040
@needs_tree_write_lock
1041
def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
1042
"""Set the parent ids to revision_ids.
1044
See also set_parent_trees. This api will try to retrieve the tree data
1045
for each element of revision_ids from the trees repository. If you have
1046
tree data already available, it is more efficient to use
1047
set_parent_trees rather than set_parent_ids. set_parent_ids is however
1048
an easier API to use.
1050
:param revision_ids: The revision_ids to set as the parent ids of this
1051
working tree. Any of these may be ghosts.
1054
for revision_id in revision_ids:
1056
revtree = self.branch.repository.revision_tree(revision_id)
1057
# TODO: jam 20070213 KnitVersionedFile raises
1058
# RevisionNotPresent rather than NoSuchRevision if a
1059
# given revision_id is not present. Should Repository be
1060
# catching it and re-raising NoSuchRevision?
1061
except (errors.NoSuchRevision, errors.RevisionNotPresent):
1063
trees.append((revision_id, revtree))
1064
self.set_parent_trees(trees,
1065
allow_leftmost_as_ghost=allow_leftmost_as_ghost)
1067
@needs_tree_write_lock
1068
def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
1069
"""Set the parents of the working tree.
1071
:param parents_list: A list of (revision_id, tree) tuples.
1072
If tree is None, then that element is treated as an unreachable
1073
parent tree - i.e. a ghost.
1075
dirstate = self.current_dirstate()
1076
if len(parents_list) > 0:
1077
if not allow_leftmost_as_ghost and parents_list[0][1] is None:
1078
raise errors.GhostRevisionUnusableHere(parents_list[0][0])
1082
parent_ids = [rev_id for rev_id, tree in parents_list]
1083
graph = self.branch.repository.get_graph()
1084
heads = graph.heads(parent_ids)
1085
accepted_revisions = set()
1087
# convert absent trees to the null tree, which we convert back to
1088
# missing on access.
1089
for rev_id, tree in parents_list:
1090
if len(accepted_revisions) > 0:
1091
# we always accept the first tree
1092
if rev_id in accepted_revisions or rev_id not in heads:
1093
# We have already included either this tree, or its
1094
# descendent, so we skip it.
1096
_mod_revision.check_not_reserved_id(rev_id)
1097
if tree is not None:
1098
real_trees.append((rev_id, tree))
1100
real_trees.append((rev_id,
1101
self.branch.repository.revision_tree(
1102
_mod_revision.NULL_REVISION)))
1103
ghosts.append(rev_id)
1104
accepted_revisions.add(rev_id)
1105
dirstate.set_parent_trees(real_trees, ghosts=ghosts)
1106
self._make_dirty(reset_inventory=False)
1108
def _set_root_id(self, file_id):
1109
"""See WorkingTree.set_root_id."""
1110
state = self.current_dirstate()
1111
state.set_path_id('', file_id)
1112
if state._dirblock_state == dirstate.DirState.IN_MEMORY_MODIFIED:
1113
self._make_dirty(reset_inventory=True)
1115
def _sha_from_stat(self, path, stat_result):
1116
"""Get a sha digest from the tree's stat cache.
1118
The default implementation assumes no stat cache is present.
1120
:param path: The path.
1121
:param stat_result: The stat result being looked up.
1123
return self.current_dirstate().sha1_from_stat(path, stat_result)
1126
def supports_tree_reference(self):
1127
return self._repo_supports_tree_reference
1130
"""Unlock in format 4 trees needs to write the entire dirstate."""
1131
# do non-implementation specific cleanup
1134
if self._control_files._lock_count == 1:
1135
# eventually we should do signature checking during read locks for
1137
if self._control_files._lock_mode == 'w':
1140
if self._dirstate is not None:
1141
# This is a no-op if there are no modifications.
1142
self._dirstate.save()
1143
self._dirstate.unlock()
1144
# TODO: jam 20070301 We shouldn't have to wipe the dirstate at this
1145
# point. Instead, it could check if the header has been
1146
# modified when it is locked, and if not, it can hang on to
1147
# the data it has in memory.
1148
self._dirstate = None
1149
self._inventory = None
1150
# reverse order of locking.
1152
return self._control_files.unlock()
1154
self.branch.unlock()
1156
@needs_tree_write_lock
1157
def unversion(self, file_ids):
1158
"""Remove the file ids in file_ids from the current versioned set.
1160
When a file_id is unversioned, all of its children are automatically
1163
:param file_ids: The file ids to stop versioning.
1164
:raises: NoSuchId if any fileid is not currently versioned.
1168
state = self.current_dirstate()
1169
state._read_dirblocks_if_needed()
1170
ids_to_unversion = set(file_ids)
1171
paths_to_unversion = set()
1173
# check if the root is to be unversioned, if so, assert for now.
1174
# walk the state marking unversioned things as absent.
1175
# if there are any un-unversioned ids at the end, raise
1176
for key, details in state._dirblocks[0][1]:
1177
if (details[0][0] not in ('a', 'r') and # absent or relocated
1178
key[2] in ids_to_unversion):
1179
# I haven't written the code to unversion / yet - it should be
1181
raise errors.BzrError('Unversioning the / is not currently supported')
1183
while block_index < len(state._dirblocks):
1184
# process one directory at a time.
1185
block = state._dirblocks[block_index]
1186
# first check: is the path one to remove - it or its children
1187
delete_block = False
1188
for path in paths_to_unversion:
1189
if (block[0].startswith(path) and
1190
(len(block[0]) == len(path) or
1191
block[0][len(path)] == '/')):
1192
# this entire block should be deleted - its the block for a
1193
# path to unversion; or the child of one
1196
# TODO: trim paths_to_unversion as we pass by paths
1198
# this block is to be deleted: process it.
1199
# TODO: we can special case the no-parents case and
1200
# just forget the whole block.
1202
while entry_index < len(block[1]):
1203
entry = block[1][entry_index]
1204
if entry[1][0][0] in 'ar':
1205
# don't remove absent or renamed entries
1208
# Mark this file id as having been removed
1209
ids_to_unversion.discard(entry[0][2])
1210
if not state._make_absent(entry):
1211
# The block has not shrunk.
1213
# go to the next block. (At the moment we dont delete empty
1218
while entry_index < len(block[1]):
1219
entry = block[1][entry_index]
1220
if (entry[1][0][0] in ('a', 'r') or # absent, relocated
1221
# ^ some parent row.
1222
entry[0][2] not in ids_to_unversion):
1223
# ^ not an id to unversion
1226
if entry[1][0][0] == 'd':
1227
paths_to_unversion.add(pathjoin(entry[0][0], entry[0][1]))
1228
if not state._make_absent(entry):
1230
# we have unversioned this id
1231
ids_to_unversion.remove(entry[0][2])
1233
if ids_to_unversion:
1234
raise errors.NoSuchId(self, iter(ids_to_unversion).next())
1235
self._make_dirty(reset_inventory=False)
1236
# have to change the legacy inventory too.
1237
if self._inventory is not None:
1238
for file_id in file_ids:
1239
self._inventory.remove_recursive_id(file_id)
1241
@needs_tree_write_lock
1242
def rename_one(self, from_rel, to_rel, after=False):
1243
"""See WorkingTree.rename_one"""
1245
WorkingTree.rename_one(self, from_rel, to_rel, after)
1247
@needs_tree_write_lock
1248
def apply_inventory_delta(self, changes):
1249
"""See MutableTree.apply_inventory_delta"""
1250
state = self.current_dirstate()
1251
state.update_by_delta(changes)
1252
self._make_dirty(reset_inventory=True)
1254
def update_basis_by_delta(self, new_revid, delta):
1255
"""See MutableTree.update_basis_by_delta."""
1256
if self.last_revision() == new_revid:
1257
raise AssertionError()
1258
self.current_dirstate().update_basis_by_delta(delta, new_revid)
1261
def _validate(self):
1262
self._dirstate._validate()
1264
@needs_tree_write_lock
1265
def _write_inventory(self, inv):
1266
"""Write inventory as the current inventory."""
1268
raise AssertionError("attempting to write an inventory when the "
1269
"dirstate is dirty will lose pending changes")
1270
had_inventory = self._inventory is not None
1271
# Setting self._inventory = None forces the dirstate to regenerate the
1272
# working inventory. We do this because self.inventory may be inv, or
1273
# may have been modified, and either case would prevent a clean delta
1275
self._inventory = None
1277
delta = inv._make_delta(self.inventory)
1279
self.apply_inventory_delta(delta)
1281
self._inventory = inv
1285
class ContentFilterAwareSHA1Provider(dirstate.SHA1Provider):
1287
def __init__(self, tree):
1290
def sha1(self, abspath):
1291
"""See dirstate.SHA1Provider.sha1()."""
1292
filters = self.tree._content_filter_stack(
1293
self.tree.relpath(osutils.safe_unicode(abspath)))
1294
return internal_size_sha_file_byname(abspath, filters)[1]
1296
def stat_and_sha1(self, abspath):
1297
"""See dirstate.SHA1Provider.stat_and_sha1()."""
1298
filters = self.tree._content_filter_stack(
1299
self.tree.relpath(osutils.safe_unicode(abspath)))
1300
file_obj = file(abspath, 'rb', 65000)
1302
statvalue = os.fstat(file_obj.fileno())
1304
file_obj = filtered_input_file(file_obj, filters)
1305
sha1 = osutils.size_sha_file(file_obj)[1]
1308
return statvalue, sha1
1311
class ContentFilteringDirStateWorkingTree(DirStateWorkingTree):
1312
"""Dirstate working tree that supports content filtering.
1314
The dirstate holds the hash and size of the canonical form of the file,
1315
and most methods must return that.
1318
def _file_content_summary(self, path, stat_result):
1319
# This is to support the somewhat obsolete path_content_summary method
1320
# with content filtering: see
1321
# <https://bugs.edge.launchpad.net/bzr/+bug/415508>.
1323
# If the dirstate cache is up to date and knows the hash and size,
1325
# Otherwise if there are no content filters, return the on-disk size
1326
# and leave the hash blank.
1327
# Otherwise, read and filter the on-disk file and use its size and
1330
# The dirstate doesn't store the size of the canonical form so we
1331
# can't trust it for content-filtered trees. We just return None.
1332
dirstate_sha1 = self._dirstate.sha1_from_stat(path, stat_result)
1333
executable = self._is_executable_from_path_and_stat(path, stat_result)
1334
return ('file', None, executable, dirstate_sha1)
1337
class WorkingTree4(DirStateWorkingTree):
1338
"""This is the Format 4 working tree.
1340
This differs from WorkingTree3 by:
1341
- Having a consolidated internal dirstate, stored in a
1342
randomly-accessible sorted file on disk.
1343
- Not having a regular inventory attribute. One can be synthesized
1344
on demand but this is expensive and should be avoided.
1346
This is new in bzr 0.15.
1350
class WorkingTree5(ContentFilteringDirStateWorkingTree):
1351
"""This is the Format 5 working tree.
1353
This differs from WorkingTree4 by:
1354
- Supporting content filtering.
1356
This is new in bzr 1.11.
1360
class WorkingTree6(ContentFilteringDirStateWorkingTree):
1361
"""This is the Format 6 working tree.
1363
This differs from WorkingTree5 by:
1364
- Supporting a current view that may mask the set of files in a tree
1365
impacted by most user operations.
1367
This is new in bzr 1.14.
1370
def _make_views(self):
1371
return views.PathBasedViews(self)
1374
class DirStateWorkingTreeFormat(WorkingTreeFormat3):
1375
def initialize(self, a_bzrdir, revision_id=None, from_branch=None,
1376
accelerator_tree=None, hardlink=False):
1377
"""See WorkingTreeFormat.initialize().
1379
:param revision_id: allows creating a working tree at a different
1380
revision than the branch is at.
1381
:param accelerator_tree: A tree which can be used for retrieving file
1382
contents more quickly than the revision tree, i.e. a workingtree.
1383
The revision tree will be used for cases where accelerator_tree's
1384
content is different.
1385
:param hardlink: If true, hard-link files from accelerator_tree,
1388
These trees get an initial random root id, if their repository supports
1389
rich root data, TREE_ROOT otherwise.
1391
if not isinstance(a_bzrdir.transport, LocalTransport):
1392
raise errors.NotLocalUrl(a_bzrdir.transport.base)
1393
transport = a_bzrdir.get_workingtree_transport(self)
1394
control_files = self._open_control_files(a_bzrdir)
1395
control_files.create_lock()
1396
control_files.lock_write()
1397
transport.put_bytes('format', self.get_format_string(),
1398
mode=a_bzrdir._get_file_mode())
1399
if from_branch is not None:
1400
branch = from_branch
1402
branch = a_bzrdir.open_branch()
1403
if revision_id is None:
1404
revision_id = branch.last_revision()
1405
local_path = transport.local_abspath('dirstate')
1406
# write out new dirstate (must exist when we create the tree)
1407
state = dirstate.DirState.initialize(local_path)
1410
wt = self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
1414
_control_files=control_files)
1416
wt.lock_tree_write()
1418
self._init_custom_control_files(wt)
1419
if revision_id in (None, _mod_revision.NULL_REVISION):
1420
if branch.repository.supports_rich_root():
1421
wt._set_root_id(generate_ids.gen_root_id())
1423
wt._set_root_id(ROOT_ID)
1426
# frequently, we will get here due to branching. The accelerator
1427
# tree will be the tree from the branch, so the desired basis
1428
# tree will often be a parent of the accelerator tree.
1429
if accelerator_tree is not None:
1431
basis = accelerator_tree.revision_tree(revision_id)
1432
except errors.NoSuchRevision:
1435
basis = branch.repository.revision_tree(revision_id)
1436
if revision_id == _mod_revision.NULL_REVISION:
1439
parents_list = [(revision_id, basis)]
1442
wt.set_parent_trees(parents_list, allow_leftmost_as_ghost=True)
1444
# if the basis has a root id we have to use that; otherwise we
1445
# use a new random one
1446
basis_root_id = basis.get_root_id()
1447
if basis_root_id is not None:
1448
wt._set_root_id(basis_root_id)
1450
if wt.supports_content_filtering():
1451
# The original tree may not have the same content filters
1452
# applied so we can't safely build the inventory delta from
1454
delta_from_tree = False
1456
delta_from_tree = True
1457
# delta_from_tree is safe even for DirStateRevisionTrees,
1458
# because wt4.apply_inventory_delta does not mutate the input
1459
# inventory entries.
1460
transform.build_tree(basis, wt, accelerator_tree,
1462
delta_from_tree=delta_from_tree)
1466
control_files.unlock()
1470
def _init_custom_control_files(self, wt):
1471
"""Subclasses with custom control files should override this method.
1473
The working tree and control files are locked for writing when this
1476
:param wt: the WorkingTree object
1479
def _open(self, a_bzrdir, control_files):
1480
"""Open the tree itself.
1482
:param a_bzrdir: the dir for the tree.
1483
:param control_files: the control files for the tree.
1485
return self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
1486
branch=a_bzrdir.open_branch(),
1489
_control_files=control_files)
1491
def __get_matchingbzrdir(self):
1492
return self._get_matchingbzrdir()
1494
def _get_matchingbzrdir(self):
1495
"""Overrideable method to get a bzrdir for testing."""
1496
# please test against something that will let us do tree references
1497
return bzrdir.format_registry.make_bzrdir(
1498
'dirstate-with-subtree')
1500
_matchingbzrdir = property(__get_matchingbzrdir)
1503
class WorkingTreeFormat4(DirStateWorkingTreeFormat):
1504
"""The first consolidated dirstate working tree format.
1507
- exists within a metadir controlling .bzr
1508
- includes an explicit version marker for the workingtree control
1509
files, separate from the BzrDir format
1510
- modifies the hash cache format
1511
- is new in bzr 0.15
1512
- uses a LockDir to guard access to it.
1515
upgrade_recommended = False
1517
_tree_class = WorkingTree4
1519
def get_format_string(self):
1520
"""See WorkingTreeFormat.get_format_string()."""
1521
return "Bazaar Working Tree Format 4 (bzr 0.15)\n"
1523
def get_format_description(self):
1524
"""See WorkingTreeFormat.get_format_description()."""
1525
return "Working tree format 4"
1528
class WorkingTreeFormat5(DirStateWorkingTreeFormat):
1529
"""WorkingTree format supporting content filtering.
1532
upgrade_recommended = False
1534
_tree_class = WorkingTree5
1536
def get_format_string(self):
1537
"""See WorkingTreeFormat.get_format_string()."""
1538
return "Bazaar Working Tree Format 5 (bzr 1.11)\n"
1540
def get_format_description(self):
1541
"""See WorkingTreeFormat.get_format_description()."""
1542
return "Working tree format 5"
1544
def supports_content_filtering(self):
1548
class WorkingTreeFormat6(DirStateWorkingTreeFormat):
1549
"""WorkingTree format supporting views.
1552
upgrade_recommended = False
1554
_tree_class = WorkingTree6
1556
def get_format_string(self):
1557
"""See WorkingTreeFormat.get_format_string()."""
1558
return "Bazaar Working Tree Format 6 (bzr 1.14)\n"
1560
def get_format_description(self):
1561
"""See WorkingTreeFormat.get_format_description()."""
1562
return "Working tree format 6"
1564
def _init_custom_control_files(self, wt):
1565
"""Subclasses with custom control files should override this method."""
1566
wt._transport.put_bytes('views', '', mode=wt.bzrdir._get_file_mode())
1568
def supports_content_filtering(self):
1571
def supports_views(self):
1575
class DirStateRevisionTree(Tree):
1576
"""A revision tree pulling the inventory from a dirstate.
1578
Note that this is one of the historical (ie revision) trees cached in the
1579
dirstate for easy access, not the workingtree.
1582
def __init__(self, dirstate, revision_id, repository):
1583
self._dirstate = dirstate
1584
self._revision_id = revision_id
1585
self._repository = repository
1586
self._inventory = None
1588
self._dirstate_locked = False
1589
self._repo_supports_tree_reference = getattr(
1590
repository._format, "supports_tree_reference",
1594
return "<%s of %s in %s>" % \
1595
(self.__class__.__name__, self._revision_id, self._dirstate)
1597
def annotate_iter(self, file_id,
1598
default_revision=_mod_revision.CURRENT_REVISION):
1599
"""See Tree.annotate_iter"""
1600
text_key = (file_id, self.inventory[file_id].revision)
1601
annotations = self._repository.texts.annotate(text_key)
1602
return [(key[-1], line) for (key, line) in annotations]
1604
def _get_ancestors(self, default_revision):
1605
return set(self._repository.get_ancestry(self._revision_id,
1607
def _comparison_data(self, entry, path):
1608
"""See Tree._comparison_data."""
1610
return None, False, None
1611
# trust the entry as RevisionTree does, but this may not be
1612
# sensible: the entry might not have come from us?
1613
return entry.kind, entry.executable, None
1615
def _file_size(self, entry, stat_value):
1616
return entry.text_size
1618
def filter_unversioned_files(self, paths):
1619
"""Filter out paths that are not versioned.
1621
:return: set of paths.
1623
pred = self.has_filename
1624
return set((p for p in paths if not pred(p)))
1626
def get_root_id(self):
1627
return self.path2id('')
1629
def id2path(self, file_id):
1630
"Convert a file-id to a path."
1631
entry = self._get_entry(file_id=file_id)
1632
if entry == (None, None):
1633
raise errors.NoSuchId(tree=self, file_id=file_id)
1634
path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
1635
return path_utf8.decode('utf8')
1637
def iter_references(self):
1638
if not self._repo_supports_tree_reference:
1639
# When the repo doesn't support references, we will have nothing to
1642
# Otherwise, fall back to the default implementation
1643
return super(DirStateRevisionTree, self).iter_references()
1645
def _get_parent_index(self):
1646
"""Return the index in the dirstate referenced by this tree."""
1647
return self._dirstate.get_parent_ids().index(self._revision_id) + 1
1649
def _get_entry(self, file_id=None, path=None):
1650
"""Get the dirstate row for file_id or path.
1652
If either file_id or path is supplied, it is used as the key to lookup.
1653
If both are supplied, the fastest lookup is used, and an error is
1654
raised if they do not both point at the same row.
1656
:param file_id: An optional unicode file_id to be looked up.
1657
:param path: An optional unicode path to be looked up.
1658
:return: The dirstate row tuple for path/file_id, or (None, None)
1660
if file_id is None and path is None:
1661
raise errors.BzrError('must supply file_id or path')
1662
if path is not None:
1663
path = path.encode('utf8')
1664
parent_index = self._get_parent_index()
1665
return self._dirstate._get_entry(parent_index, fileid_utf8=file_id, path_utf8=path)
1667
def _generate_inventory(self):
1668
"""Create and set self.inventory from the dirstate object.
1670
(So this is only called the first time the inventory is requested for
1671
this tree; it then remains in memory until it's out of date.)
1673
This is relatively expensive: we have to walk the entire dirstate.
1675
if not self._locked:
1676
raise AssertionError(
1677
'cannot generate inventory of an unlocked '
1678
'dirstate revision tree')
1679
# separate call for profiling - makes it clear where the costs are.
1680
self._dirstate._read_dirblocks_if_needed()
1681
if self._revision_id not in self._dirstate.get_parent_ids():
1682
raise AssertionError(
1683
'parent %s has disappeared from %s' % (
1684
self._revision_id, self._dirstate.get_parent_ids()))
1685
parent_index = self._dirstate.get_parent_ids().index(self._revision_id) + 1
1686
# This is identical now to the WorkingTree _generate_inventory except
1687
# for the tree index use.
1688
root_key, current_entry = self._dirstate._get_entry(parent_index, path_utf8='')
1689
current_id = root_key[2]
1690
if current_entry[parent_index][0] != 'd':
1691
raise AssertionError()
1692
inv = Inventory(root_id=current_id, revision_id=self._revision_id)
1693
inv.root.revision = current_entry[parent_index][4]
1694
# Turn some things into local variables
1695
minikind_to_kind = dirstate.DirState._minikind_to_kind
1696
factory = entry_factory
1697
utf8_decode = cache_utf8._utf8_decode
1698
inv_byid = inv._byid
1699
# we could do this straight out of the dirstate; it might be fast
1700
# and should be profiled - RBC 20070216
1701
parent_ies = {'' : inv.root}
1702
for block in self._dirstate._dirblocks[1:]: #skip root
1705
parent_ie = parent_ies[dirname]
1707
# all the paths in this block are not versioned in this tree
1709
for key, entry in block[1]:
1710
minikind, fingerprint, size, executable, revid = entry[parent_index]
1711
if minikind in ('a', 'r'): # absent, relocated
1715
name_unicode = utf8_decode(name)[0]
1717
kind = minikind_to_kind[minikind]
1718
inv_entry = factory[kind](file_id, name_unicode,
1720
inv_entry.revision = revid
1722
inv_entry.executable = executable
1723
inv_entry.text_size = size
1724
inv_entry.text_sha1 = fingerprint
1725
elif kind == 'directory':
1726
parent_ies[(dirname + '/' + name).strip('/')] = inv_entry
1727
elif kind == 'symlink':
1728
inv_entry.executable = False
1729
inv_entry.text_size = None
1730
inv_entry.symlink_target = utf8_decode(fingerprint)[0]
1731
elif kind == 'tree-reference':
1732
inv_entry.reference_revision = fingerprint or None
1734
raise AssertionError("cannot convert entry %r into an InventoryEntry"
1736
# These checks cost us around 40ms on a 55k entry tree
1737
if file_id in inv_byid:
1738
raise AssertionError('file_id %s already in'
1739
' inventory as %s' % (file_id, inv_byid[file_id]))
1740
if name_unicode in parent_ie.children:
1741
raise AssertionError('name %r already in parent'
1743
inv_byid[file_id] = inv_entry
1744
parent_ie.children[name_unicode] = inv_entry
1745
self._inventory = inv
1747
def get_file_mtime(self, file_id, path=None):
1748
"""Return the modification time for this record.
1750
We return the timestamp of the last-changed revision.
1752
# Make sure the file exists
1753
entry = self._get_entry(file_id, path=path)
1754
if entry == (None, None): # do we raise?
1756
parent_index = self._get_parent_index()
1757
last_changed_revision = entry[1][parent_index][4]
1759
rev = self._repository.get_revision(last_changed_revision)
1760
except errors.NoSuchRevision:
1761
raise errors.FileTimestampUnavailable(self.id2path(file_id))
1762
return rev.timestamp
1764
def get_file_sha1(self, file_id, path=None, stat_value=None):
1765
entry = self._get_entry(file_id=file_id, path=path)
1766
parent_index = self._get_parent_index()
1767
parent_details = entry[1][parent_index]
1768
if parent_details[0] == 'f':
1769
return parent_details[1]
1772
def get_file(self, file_id, path=None):
1773
return StringIO(self.get_file_text(file_id))
1775
def get_file_size(self, file_id):
1776
"""See Tree.get_file_size"""
1777
return self.inventory[file_id].text_size
1779
def get_file_text(self, file_id, path=None):
1780
_, content = list(self.iter_files_bytes([(file_id, None)]))[0]
1781
return ''.join(content)
1783
def get_reference_revision(self, file_id, path=None):
1784
return self.inventory[file_id].reference_revision
1786
def iter_files_bytes(self, desired_files):
1787
"""See Tree.iter_files_bytes.
1789
This version is implemented on top of Repository.iter_files_bytes"""
1790
parent_index = self._get_parent_index()
1791
repo_desired_files = []
1792
for file_id, identifier in desired_files:
1793
entry = self._get_entry(file_id)
1794
if entry == (None, None):
1795
raise errors.NoSuchId(self, file_id)
1796
repo_desired_files.append((file_id, entry[1][parent_index][4],
1798
return self._repository.iter_files_bytes(repo_desired_files)
1800
def get_symlink_target(self, file_id):
1801
entry = self._get_entry(file_id=file_id)
1802
parent_index = self._get_parent_index()
1803
if entry[1][parent_index][0] != 'l':
1806
target = entry[1][parent_index][1]
1807
target = target.decode('utf8')
1810
def get_revision_id(self):
1811
"""Return the revision id for this tree."""
1812
return self._revision_id
1814
def _get_inventory(self):
1815
if self._inventory is not None:
1816
return self._inventory
1817
self._must_be_locked()
1818
self._generate_inventory()
1819
return self._inventory
1821
inventory = property(_get_inventory,
1822
doc="Inventory of this Tree")
1824
def get_parent_ids(self):
1825
"""The parents of a tree in the dirstate are not cached."""
1826
return self._repository.get_revision(self._revision_id).parent_ids
1828
def has_filename(self, filename):
1829
return bool(self.path2id(filename))
1831
def kind(self, file_id):
1832
entry = self._get_entry(file_id=file_id)[1]
1834
raise errors.NoSuchId(tree=self, file_id=file_id)
1835
return dirstate.DirState._minikind_to_kind[entry[1][0]]
1837
def stored_kind(self, file_id):
1838
"""See Tree.stored_kind"""
1839
return self.kind(file_id)
1841
def path_content_summary(self, path):
1842
"""See Tree.path_content_summary."""
1843
id = self.inventory.path2id(path)
1845
return ('missing', None, None, None)
1846
entry = self._inventory[id]
1849
return (kind, entry.text_size, entry.executable, entry.text_sha1)
1850
elif kind == 'symlink':
1851
return (kind, None, None, entry.symlink_target)
1853
return (kind, None, None, None)
1855
def is_executable(self, file_id, path=None):
1856
ie = self.inventory[file_id]
1857
if ie.kind != "file":
1859
return ie.executable
1861
def list_files(self, include_root=False, from_dir=None, recursive=True):
1862
# We use a standard implementation, because DirStateRevisionTree is
1863
# dealing with one of the parents of the current state
1864
inv = self._get_inventory()
1865
if from_dir is None:
1868
from_dir_id = inv.path2id(from_dir)
1869
if from_dir_id is None:
1870
# Directory not versioned
1872
entries = inv.iter_entries(from_dir=from_dir_id, recursive=recursive)
1873
if inv.root is not None and not include_root and from_dir is None:
1875
for path, entry in entries:
1876
yield path, 'V', entry.kind, entry.file_id, entry
1878
def lock_read(self):
1879
"""Lock the tree for a set of operations."""
1880
if not self._locked:
1881
self._repository.lock_read()
1882
if self._dirstate._lock_token is None:
1883
self._dirstate.lock_read()
1884
self._dirstate_locked = True
1887
def _must_be_locked(self):
1888
if not self._locked:
1889
raise errors.ObjectNotLocked(self)
1892
def path2id(self, path):
1893
"""Return the id for path in this tree."""
1894
# lookup by path: faster than splitting and walking the ivnentory.
1895
entry = self._get_entry(path=path)
1896
if entry == (None, None):
1901
"""Unlock, freeing any cache memory used during the lock."""
1902
# outside of a lock, the inventory is suspect: release it.
1904
if not self._locked:
1905
self._inventory = None
1907
if self._dirstate_locked:
1908
self._dirstate.unlock()
1909
self._dirstate_locked = False
1910
self._repository.unlock()
1913
def supports_tree_reference(self):
1914
return self._repo_supports_tree_reference
1916
def walkdirs(self, prefix=""):
1917
# TODO: jam 20070215 This is the lazy way by using the RevisionTree
1918
# implementation based on an inventory.
1919
# This should be cleaned up to use the much faster Dirstate code
1920
# So for now, we just build up the parent inventory, and extract
1921
# it the same way RevisionTree does.
1922
_directory = 'directory'
1923
inv = self._get_inventory()
1924
top_id = inv.path2id(prefix)
1928
pending = [(prefix, top_id)]
1931
relpath, file_id = pending.pop()
1932
# 0 - relpath, 1- file-id
1934
relroot = relpath + '/'
1937
# FIXME: stash the node in pending
1938
entry = inv[file_id]
1939
for name, child in entry.sorted_children():
1940
toppath = relroot + name
1941
dirblock.append((toppath, name, child.kind, None,
1942
child.file_id, child.kind
1944
yield (relpath, entry.file_id), dirblock
1945
# push the user specified dirs from dirblock
1946
for dir in reversed(dirblock):
1947
if dir[2] == _directory:
1948
pending.append((dir[0], dir[4]))
1951
class InterDirStateTree(InterTree):
1952
"""Fast path optimiser for changes_from with dirstate trees.
1954
This is used only when both trees are in the dirstate working file, and
1955
the source is any parent within the dirstate, and the destination is
1956
the current working tree of the same dirstate.
1958
# this could be generalized to allow comparisons between any trees in the
1959
# dirstate, and possibly between trees stored in different dirstates.
1961
def __init__(self, source, target):
1962
super(InterDirStateTree, self).__init__(source, target)
1963
if not InterDirStateTree.is_compatible(source, target):
1964
raise Exception, "invalid source %r and target %r" % (source, target)
1967
def make_source_parent_tree(source, target):
1968
"""Change the source tree into a parent of the target."""
1969
revid = source.commit('record tree')
1970
target.branch.repository.fetch(source.branch.repository, revid)
1971
target.set_parent_ids([revid])
1972
return target.basis_tree(), target
1975
def make_source_parent_tree_python_dirstate(klass, test_case, source, target):
1976
result = klass.make_source_parent_tree(source, target)
1977
result[1]._iter_changes = dirstate.ProcessEntryPython
1981
def make_source_parent_tree_compiled_dirstate(klass, test_case, source,
1983
from bzrlib.tests.test__dirstate_helpers import \
1984
compiled_dirstate_helpers_feature
1985
test_case.requireFeature(compiled_dirstate_helpers_feature)
1986
from bzrlib._dirstate_helpers_pyx import ProcessEntryC
1987
result = klass.make_source_parent_tree(source, target)
1988
result[1]._iter_changes = ProcessEntryC
1991
_matching_from_tree_format = WorkingTreeFormat4()
1992
_matching_to_tree_format = WorkingTreeFormat4()
1995
def _test_mutable_trees_to_test_trees(klass, test_case, source, target):
1996
# This method shouldn't be called, because we have python and C
1997
# specific flavours.
1998
raise NotImplementedError
2000
def iter_changes(self, include_unchanged=False,
2001
specific_files=None, pb=None, extra_trees=[],
2002
require_versioned=True, want_unversioned=False):
2003
"""Return the changes from source to target.
2005
:return: An iterator that yields tuples. See InterTree.iter_changes
2007
:param specific_files: An optional list of file paths to restrict the
2008
comparison to. When mapping filenames to ids, all matches in all
2009
trees (including optional extra_trees) are used, and all children of
2010
matched directories are included.
2011
:param include_unchanged: An optional boolean requesting the inclusion of
2012
unchanged entries in the result.
2013
:param extra_trees: An optional list of additional trees to use when
2014
mapping the contents of specific_files (paths) to file_ids.
2015
:param require_versioned: If True, all files in specific_files must be
2016
versioned in one of source, target, extra_trees or
2017
PathsNotVersionedError is raised.
2018
:param want_unversioned: Should unversioned files be returned in the
2019
output. An unversioned file is defined as one with (False, False)
2020
for the versioned pair.
2022
# TODO: handle extra trees in the dirstate.
2023
if (extra_trees or specific_files == []):
2024
# we can't fast-path these cases (yet)
2025
return super(InterDirStateTree, self).iter_changes(
2026
include_unchanged, specific_files, pb, extra_trees,
2027
require_versioned, want_unversioned=want_unversioned)
2028
parent_ids = self.target.get_parent_ids()
2029
if not (self.source._revision_id in parent_ids
2030
or self.source._revision_id == _mod_revision.NULL_REVISION):
2031
raise AssertionError(
2032
"revision {%s} is not stored in {%s}, but %s "
2033
"can only be used for trees stored in the dirstate"
2034
% (self.source._revision_id, self.target, self.iter_changes))
2036
if self.source._revision_id == _mod_revision.NULL_REVISION:
2038
indices = (target_index,)
2040
if not (self.source._revision_id in parent_ids):
2041
raise AssertionError(
2042
"Failure: source._revision_id: %s not in target.parent_ids(%s)" % (
2043
self.source._revision_id, parent_ids))
2044
source_index = 1 + parent_ids.index(self.source._revision_id)
2045
indices = (source_index, target_index)
2046
# -- make all specific_files utf8 --
2048
specific_files_utf8 = set()
2049
for path in specific_files:
2050
# Note, if there are many specific files, using cache_utf8
2051
# would be good here.
2052
specific_files_utf8.add(path.encode('utf8'))
2053
specific_files = specific_files_utf8
2055
specific_files = set([''])
2056
# -- specific_files is now a utf8 path set --
2058
# -- get the state object and prepare it.
2059
state = self.target.current_dirstate()
2060
state._read_dirblocks_if_needed()
2061
if require_versioned:
2062
# -- check all supplied paths are versioned in a search tree. --
2064
for path in specific_files:
2065
path_entries = state._entries_for_path(path)
2066
if not path_entries:
2067
# this specified path is not present at all: error
2068
not_versioned.append(path)
2070
found_versioned = False
2071
# for each id at this path
2072
for entry in path_entries:
2074
for index in indices:
2075
if entry[1][index][0] != 'a': # absent
2076
found_versioned = True
2077
# all good: found a versioned cell
2079
if not found_versioned:
2080
# none of the indexes was not 'absent' at all ids for this
2082
not_versioned.append(path)
2083
if len(not_versioned) > 0:
2084
raise errors.PathsNotVersionedError(not_versioned)
2085
# -- remove redundancy in supplied specific_files to prevent over-scanning --
2086
search_specific_files = osutils.minimum_path_selection(specific_files)
2088
use_filesystem_for_exec = (sys.platform != 'win32')
2089
iter_changes = self.target._iter_changes(include_unchanged,
2090
use_filesystem_for_exec, search_specific_files, state,
2091
source_index, target_index, want_unversioned, self.target)
2092
return iter_changes.iter_changes()
2095
def is_compatible(source, target):
2096
# the target must be a dirstate working tree
2097
if not isinstance(target, DirStateWorkingTree):
2099
# the source must be a revtree or dirstate rev tree.
2100
if not isinstance(source,
2101
(revisiontree.RevisionTree, DirStateRevisionTree)):
2103
# the source revid must be in the target dirstate
2104
if not (source._revision_id == _mod_revision.NULL_REVISION or
2105
source._revision_id in target.get_parent_ids()):
2106
# TODO: what about ghosts? it may well need to
2107
# check for them explicitly.
2111
InterTree.register_optimiser(InterDirStateTree)
2114
class Converter3to4(object):
2115
"""Perform an in-place upgrade of format 3 to format 4 trees."""
2118
self.target_format = WorkingTreeFormat4()
2120
def convert(self, tree):
2121
# lock the control files not the tree, so that we dont get tree
2122
# on-unlock behaviours, and so that noone else diddles with the
2123
# tree during upgrade.
2124
tree._control_files.lock_write()
2126
tree.read_working_inventory()
2127
self.create_dirstate_data(tree)
2128
self.update_format(tree)
2129
self.remove_xml_files(tree)
2131
tree._control_files.unlock()
2133
def create_dirstate_data(self, tree):
2134
"""Create the dirstate based data for tree."""
2135
local_path = tree.bzrdir.get_workingtree_transport(None
2136
).local_abspath('dirstate')
2137
state = dirstate.DirState.from_tree(tree, local_path)
2141
def remove_xml_files(self, tree):
2142
"""Remove the oldformat 3 data."""
2143
transport = tree.bzrdir.get_workingtree_transport(None)
2144
for path in ['basis-inventory-cache', 'inventory', 'last-revision',
2145
'pending-merges', 'stat-cache']:
2147
transport.delete(path)
2148
except errors.NoSuchFile:
2149
# some files are optional - just deal.
2152
def update_format(self, tree):
2153
"""Change the format marker."""
2154
tree._transport.put_bytes('format',
2155
self.target_format.get_format_string(),
2156
mode=tree.bzrdir._get_file_mode())
2159
class Converter4to5(object):
2160
"""Perform an in-place upgrade of format 4 to format 5 trees."""
2163
self.target_format = WorkingTreeFormat5()
2165
def convert(self, tree):
2166
# lock the control files not the tree, so that we don't get tree
2167
# on-unlock behaviours, and so that no-one else diddles with the
2168
# tree during upgrade.
2169
tree._control_files.lock_write()
2171
self.update_format(tree)
2173
tree._control_files.unlock()
2175
def update_format(self, tree):
2176
"""Change the format marker."""
2177
tree._transport.put_bytes('format',
2178
self.target_format.get_format_string(),
2179
mode=tree.bzrdir._get_file_mode())
2182
class Converter4or5to6(object):
2183
"""Perform an in-place upgrade of format 4 or 5 to format 6 trees."""
2186
self.target_format = WorkingTreeFormat6()
2188
def convert(self, tree):
2189
# lock the control files not the tree, so that we don't get tree
2190
# on-unlock behaviours, and so that no-one else diddles with the
2191
# tree during upgrade.
2192
tree._control_files.lock_write()
2194
self.init_custom_control_files(tree)
2195
self.update_format(tree)
2197
tree._control_files.unlock()
2199
def init_custom_control_files(self, tree):
2200
"""Initialize custom control files."""
2201
tree._transport.put_bytes('views', '',
2202
mode=tree.bzrdir._get_file_mode())
2204
def update_format(self, tree):
2205
"""Change the format marker."""
2206
tree._transport.put_bytes('format',
2207
self.target_format.get_format_string(),
2208
mode=tree.bzrdir._get_file_mode())
added
removed
bzrlib/workingtree_4.py
