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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# FIXME: This refactoring of the workingtree code doesn't seem to keep
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# the WorkingTree's copy of the inventory in sync with the branch. The
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# branch modifies its working inventory when it does a commit to make
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# missing files permanently removed.
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# TODO: Maybe also keep the full path of the entry, and the children?
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# But those depend on its position within a particular inventory, and
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# it would be nice not to need to hold the backpointer here.
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# This should really be an id randomly assigned when the tree is
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# created, but it's not for now.
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bzrlib.errors import (
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from bzrlib.trace import mutter
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class InventoryEntry(object):
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"""Description of a versioned file.
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An InventoryEntry has the following fields, which are also
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present in the XML inventory-entry element:
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(within the parent directory)
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file_id of the parent directory, or ROOT_ID
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the revision_id in which this variation of this file was
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Indicates that this file should be executable on systems
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sha-1 of the text of the file
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size in bytes of the text of the file
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(reading a version 4 tree created a text_id field.)
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>>> i.add(InventoryDirectory('123', 'src', ROOT_ID))
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InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None)
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>>> i.add(InventoryFile('2323', 'hello.c', parent_id='123'))
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InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None)
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>>> shouldbe = {0: '', 1: 'src', 2: 'src/hello.c'}
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>>> for ix, j in enumerate(i.iter_entries()):
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... print (j[0] == shouldbe[ix], j[1])
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(True, InventoryDirectory('TREE_ROOT', u'', parent_id=None, revision=None))
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(True, InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None))
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(True, InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None))
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>>> i.add(InventoryFile('2323', 'bye.c', '123'))
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Traceback (most recent call last):
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BzrError: inventory already contains entry with id {2323}
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>>> i.add(InventoryFile('2324', 'bye.c', '123'))
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InventoryFile('2324', 'bye.c', parent_id='123', sha1=None, len=None)
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>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
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InventoryDirectory('2325', 'wibble', parent_id='123', revision=None)
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>>> i.path2id('src/wibble')
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>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
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InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
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InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
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>>> for path, entry in i.iter_entries():
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... assert i.path2id(path)
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>>> i.id2path('2326')
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'src/wibble/wibble.c'
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# Constants returned by describe_change()
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# TODO: These should probably move to some kind of FileChangeDescription
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# class; that's like what's inside a TreeDelta but we want to be able to
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# generate them just for one file at a time.
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MODIFIED_AND_RENAMED = 'modified and renamed'
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def detect_changes(self, old_entry):
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"""Return a (text_modified, meta_modified) from this to old_entry.
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_read_tree_state must have been called on self and old_entry prior to
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calling detect_changes.
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def diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""Perform a diff from this to to_entry.
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text_diff will be used for textual difference calculation.
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This is a template method, override _diff in child classes.
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self._read_tree_state(tree.id2path(self.file_id), tree)
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# cannot diff from one kind to another - you must do a removal
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# and an addif they do not match.
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assert self.kind == to_entry.kind
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to_entry._read_tree_state(to_tree.id2path(to_entry.file_id),
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self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
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def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""Perform a diff between two entries of the same kind."""
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def find_previous_heads(self, previous_inventories,
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versioned_file_store,
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"""Return the revisions and entries that directly precede this.
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Returned as a map from revision to inventory entry.
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This is a map containing the file revisions in all parents
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for which the file exists, and its revision is not a parent of
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any other. If the file is new, the set will be empty.
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:param versioned_file_store: A store where ancestry data on this
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file id can be queried.
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:param transaction: The transaction that queries to the versioned
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file store should be completed under.
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:param entry_vf: The entry versioned file, if its already available.
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def get_ancestors(weave, entry):
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return set(weave.get_ancestry(entry.revision))
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# revision:ie mapping for each ie found in previous_inventories.
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# revision:ie mapping with one revision for each head.
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# revision: ancestor list for each head
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# identify candidate head revision ids.
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for inv in previous_inventories:
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if self.file_id in inv:
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ie = inv[self.file_id]
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assert ie.file_id == self.file_id
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if ie.revision in candidates:
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# same revision value in two different inventories:
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# correct possible inconsistencies:
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# * there was a bug in revision updates with 'x' bit
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if candidates[ie.revision].executable != ie.executable:
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candidates[ie.revision].executable = False
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ie.executable = False
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except AttributeError:
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# must now be the same.
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assert candidates[ie.revision] == ie
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# add this revision as a candidate.
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candidates[ie.revision] = ie
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# common case optimisation
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if len(candidates) == 1:
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# if there is only one candidate revision found
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# then we can opening the versioned file to access ancestry:
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# there cannot be any ancestors to eliminate when there is
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# only one revision available.
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heads[ie.revision] = ie
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# eliminate ancestors amongst the available candidates:
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# heads are those that are not an ancestor of any other candidate
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# - this provides convergence at a per-file level.
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for ie in candidates.values():
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# may be an ancestor of a known head:
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already_present = 0 != len(
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[head for head in heads
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if ie.revision in head_ancestors[head]])
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# an ancestor of an analyzed candidate.
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# not an ancestor of a known head:
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# load the versioned file for this file id if needed
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entry_vf = versioned_file_store.get_weave_or_empty(
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self.file_id, transaction)
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ancestors = get_ancestors(entry_vf, ie)
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# may knock something else out:
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check_heads = list(heads.keys())
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for head in check_heads:
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if head in ancestors:
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# this previously discovered 'head' is not
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# really a head - its an ancestor of the newly
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head_ancestors[ie.revision] = ancestors
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heads[ie.revision] = ie
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def get_tar_item(self, root, dp, now, tree):
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"""Get a tarfile item and a file stream for its content."""
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item = tarfile.TarInfo(osutils.pathjoin(root, dp).encode('utf8'))
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# TODO: would be cool to actually set it to the timestamp of the
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# revision it was last changed
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fileobj = self._put_in_tar(item, tree)
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"""Return true if the object this entry represents has textual data.
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Note that textual data includes binary content.
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Also note that all entries get weave files created for them.
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This attribute is primarily used when upgrading from old trees that
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did not have the weave index for all inventory entries.
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def __init__(self, file_id, name, parent_id, text_id=None):
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"""Create an InventoryEntry
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The filename must be a single component, relative to the
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parent directory; it cannot be a whole path or relative name.
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>>> e = InventoryFile('123', 'hello.c', ROOT_ID)
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>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
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Traceback (most recent call last):
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InvalidEntryName: Invalid entry name: src/hello.c
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assert isinstance(name, basestring), name
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if '/' in name or '\\' in name:
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raise errors.InvalidEntryName(name=name)
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self.executable = False
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self.text_sha1 = None
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self.text_size = None
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self.file_id = file_id
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assert isinstance(file_id, (str, None.__class__)), \
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'bad type %r for %r' % (type(file_id), file_id)
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self.text_id = text_id
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self.parent_id = parent_id
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self.symlink_target = None
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def kind_character(self):
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"""Return a short kind indicator useful for appending to names."""
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raise BzrError('unknown kind %r' % self.kind)
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known_kinds = ('file', 'directory', 'symlink')
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def _put_in_tar(self, item, tree):
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"""populate item for stashing in a tar, and return the content stream.
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If no content is available, return None.
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raise BzrError("don't know how to export {%s} of kind %r" %
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(self.file_id, self.kind))
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def put_on_disk(self, dest, dp, tree):
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"""Create a representation of self on disk in the prefix dest.
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This is a template method - implement _put_on_disk in subclasses.
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fullpath = osutils.pathjoin(dest, dp)
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self._put_on_disk(fullpath, tree)
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# mutter(" export {%s} kind %s to %s", self.file_id,
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# self.kind, fullpath)
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def _put_on_disk(self, fullpath, tree):
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"""Put this entry onto disk at fullpath, from tree tree."""
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raise BzrError("don't know how to export {%s} of kind %r" % (self.file_id, self.kind))
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def sorted_children(self):
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return sorted(self.children.items())
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def versionable_kind(kind):
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return (kind in ('file', 'directory', 'symlink'))
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def check(self, checker, rev_id, inv, tree):
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"""Check this inventory entry is intact.
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This is a template method, override _check for kind specific
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:param checker: Check object providing context for the checks;
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can be used to find out what parts of the repository have already
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:param rev_id: Revision id from which this InventoryEntry was loaded.
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Not necessarily the last-changed revision for this file.
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:param inv: Inventory from which the entry was loaded.
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:param tree: RevisionTree for this entry.
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if self.parent_id is not None:
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if not inv.has_id(self.parent_id):
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raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
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% (self.parent_id, rev_id))
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self._check(checker, rev_id, tree)
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def _check(self, checker, rev_id, tree):
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"""Check this inventory entry for kind specific errors."""
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raise BzrCheckError('unknown entry kind %r in revision {%s}' %
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"""Clone this inventory entry."""
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raise NotImplementedError
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def describe_change(old_entry, new_entry):
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"""Describe the change between old_entry and this.
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This smells of being an InterInventoryEntry situation, but as its
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the first one, we're making it a static method for now.
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An entry with a different parent, or different name is considered
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to be renamed. Reparenting is an internal detail.
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Note that renaming the parent does not trigger a rename for the
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# TODO: Perhaps return an object rather than just a string
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if old_entry is new_entry:
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# also the case of both being None
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elif old_entry is None:
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elif new_entry is None:
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if old_entry.kind != new_entry.kind:
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text_modified, meta_modified = new_entry.detect_changes(old_entry)
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if text_modified or meta_modified:
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# TODO 20060511 (mbp, rbc) factor out 'detect_rename' here.
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if old_entry.parent_id != new_entry.parent_id:
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elif old_entry.name != new_entry.name:
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if renamed and not modified:
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return InventoryEntry.RENAMED
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if modified and not renamed:
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if modified and renamed:
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return InventoryEntry.MODIFIED_AND_RENAMED
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return ("%s(%r, %r, parent_id=%r, revision=%r)"
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% (self.__class__.__name__,
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def snapshot(self, revision, path, previous_entries,
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work_tree, commit_builder):
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"""Make a snapshot of this entry which may or may not have changed.
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This means that all its fields are populated, that it has its
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text stored in the text store or weave.
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# mutter('new parents of %s are %r', path, previous_entries)
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self._read_tree_state(path, work_tree)
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# TODO: Where should we determine whether to reuse a
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# previous revision id or create a new revision? 20060606
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if len(previous_entries) == 1:
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# cannot be unchanged unless there is only one parent file rev.
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parent_ie = previous_entries.values()[0]
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if self._unchanged(parent_ie):
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# mutter("found unchanged entry")
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self.revision = parent_ie.revision
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return self._snapshot_into_revision(revision, previous_entries,
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work_tree, commit_builder)
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def _snapshot_into_revision(self, revision, previous_entries, work_tree,
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"""Record this revision unconditionally into a store.
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The entry's last-changed revision property (`revision`) is updated to
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that of the new revision.
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:param revision: id of the new revision that is being recorded.
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:returns: String description of the commit (e.g. "merged", "modified"), etc.
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# mutter('new revision {%s} for {%s}', revision, self.file_id)
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self.revision = revision
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self._snapshot_text(previous_entries, work_tree, commit_builder)
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def _snapshot_text(self, file_parents, work_tree, commit_builder):
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"""Record the 'text' of this entry, whatever form that takes.
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This default implementation simply adds an empty text.
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raise NotImplementedError(self._snapshot_text)
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def __eq__(self, other):
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if not isinstance(other, InventoryEntry):
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return NotImplemented
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return ((self.file_id == other.file_id)
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and (self.name == other.name)
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and (other.symlink_target == self.symlink_target)
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and (self.text_sha1 == other.text_sha1)
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and (self.text_size == other.text_size)
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and (self.text_id == other.text_id)
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and (self.parent_id == other.parent_id)
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and (self.kind == other.kind)
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and (self.revision == other.revision)
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and (self.executable == other.executable)
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def __ne__(self, other):
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return not (self == other)
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raise ValueError('not hashable')
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def _unchanged(self, previous_ie):
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"""Has this entry changed relative to previous_ie.
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This method should be overridden in child classes.
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# different inv parent
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if previous_ie.parent_id != self.parent_id:
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elif previous_ie.name != self.name:
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def _read_tree_state(self, path, work_tree):
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"""Populate fields in the inventory entry from the given tree.
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Note that this should be modified to be a noop on virtual trees
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as all entries created there are prepopulated.
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# TODO: Rather than running this manually, we should check the
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# working sha1 and other expensive properties when they're
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# first requested, or preload them if they're already known
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pass # nothing to do by default
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def _forget_tree_state(self):
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class RootEntry(InventoryEntry):
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target']
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def _check(self, checker, rev_id, tree):
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"""See InventoryEntry._check"""
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def __init__(self, file_id):
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self.file_id = file_id
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self.kind = 'directory'
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self.parent_id = None
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symbol_versioning.warn('RootEntry is deprecated as of bzr 0.10.'
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' Please use InventoryDirectory instead.',
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DeprecationWarning, stacklevel=2)
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def __eq__(self, other):
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if not isinstance(other, RootEntry):
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return NotImplemented
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return (self.file_id == other.file_id) \
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and (self.children == other.children)
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class InventoryDirectory(InventoryEntry):
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"""A directory in an inventory."""
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target']
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def _check(self, checker, rev_id, tree):
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"""See InventoryEntry._check"""
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if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
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raise BzrCheckError('directory {%s} has text in revision {%s}'
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% (self.file_id, rev_id))
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other = InventoryDirectory(self.file_id, self.name, self.parent_id)
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other.revision = self.revision
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# note that children are *not* copied; they're pulled across when
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def __init__(self, file_id, name, parent_id):
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super(InventoryDirectory, self).__init__(file_id, name, parent_id)
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self.kind = 'directory'
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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def _put_in_tar(self, item, tree):
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"""See InventoryEntry._put_in_tar."""
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item.type = tarfile.DIRTYPE
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def _put_on_disk(self, fullpath, tree):
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"""See InventoryEntry._put_on_disk."""
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def _snapshot_text(self, file_parents, work_tree, commit_builder):
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"""See InventoryEntry._snapshot_text."""
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commit_builder.modified_directory(self.file_id, file_parents)
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class InventoryFile(InventoryEntry):
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"""A file in an inventory."""
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target']
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def _check(self, checker, tree_revision_id, tree):
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"""See InventoryEntry._check"""
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t = (self.file_id, self.revision)
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if t in checker.checked_texts:
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prev_sha = checker.checked_texts[t]
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if prev_sha != self.text_sha1:
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raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
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(self.file_id, tree_revision_id))
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checker.repeated_text_cnt += 1
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if self.file_id not in checker.checked_weaves:
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mutter('check weave {%s}', self.file_id)
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w = tree.get_weave(self.file_id)
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# Not passing a progress bar, because it creates a new
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# progress, which overwrites the current progress,
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# and doesn't look nice
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checker.checked_weaves[self.file_id] = True
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w = tree.get_weave(self.file_id)
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mutter('check version {%s} of {%s}', tree_revision_id, self.file_id)
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checker.checked_text_cnt += 1
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# We can't check the length, because Weave doesn't store that
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# information, and the whole point of looking at the weave's
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# sha1sum is that we don't have to extract the text.
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if self.text_sha1 != w.get_sha1(self.revision):
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raise BzrCheckError('text {%s} version {%s} wrong sha1'
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% (self.file_id, self.revision))
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checker.checked_texts[t] = self.text_sha1
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other = InventoryFile(self.file_id, self.name, self.parent_id)
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other.executable = self.executable
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other.text_id = self.text_id
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other.text_sha1 = self.text_sha1
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other.text_size = self.text_size
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other.revision = self.revision
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def detect_changes(self, old_entry):
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"""See InventoryEntry.detect_changes."""
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assert self.text_sha1 is not None
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assert old_entry.text_sha1 is not None
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text_modified = (self.text_sha1 != old_entry.text_sha1)
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meta_modified = (self.executable != old_entry.executable)
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return text_modified, meta_modified
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def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""See InventoryEntry._diff."""
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from_text = tree.get_file(self.file_id).readlines()
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to_text = to_tree.get_file(to_entry.file_id).readlines()
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text_diff(from_label, from_text,
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to_label, to_text, output_to)
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text_diff(to_label, to_text,
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from_label, from_text, output_to)
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except errors.BinaryFile:
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label_pair = (to_label, from_label)
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label_pair = (from_label, to_label)
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print >> output_to, "Binary files %s and %s differ" % label_pair
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"""See InventoryEntry.has_text."""
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def __init__(self, file_id, name, parent_id):
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super(InventoryFile, self).__init__(file_id, name, parent_id)
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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def _put_in_tar(self, item, tree):
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"""See InventoryEntry._put_in_tar."""
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item.type = tarfile.REGTYPE
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fileobj = tree.get_file(self.file_id)
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item.size = self.text_size
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if tree.is_executable(self.file_id):
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def _put_on_disk(self, fullpath, tree):
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"""See InventoryEntry._put_on_disk."""
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osutils.pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
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if tree.is_executable(self.file_id):
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os.chmod(fullpath, 0755)
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def _read_tree_state(self, path, work_tree):
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"""See InventoryEntry._read_tree_state."""
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self.text_sha1 = work_tree.get_file_sha1(self.file_id, path=path)
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# FIXME: 20050930 probe for the text size when getting sha1
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# in _read_tree_state
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self.executable = work_tree.is_executable(self.file_id, path=path)
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return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s)"
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% (self.__class__.__name__,
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def _forget_tree_state(self):
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self.text_sha1 = None
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def _snapshot_text(self, file_parents, work_tree, commit_builder):
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"""See InventoryEntry._snapshot_text."""
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def get_content_byte_lines():
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return work_tree.get_file(self.file_id).readlines()
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self.text_sha1, self.text_size = commit_builder.modified_file_text(
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self.file_id, file_parents, get_content_byte_lines, self.text_sha1, self.text_size)
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def _unchanged(self, previous_ie):
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"""See InventoryEntry._unchanged."""
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compatible = super(InventoryFile, self)._unchanged(previous_ie)
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if self.text_sha1 != previous_ie.text_sha1:
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# FIXME: 20050930 probe for the text size when getting sha1
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# in _read_tree_state
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self.text_size = previous_ie.text_size
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if self.executable != previous_ie.executable:
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class InventoryLink(InventoryEntry):
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"""A file in an inventory."""
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target']
743
def _check(self, checker, rev_id, tree):
744
"""See InventoryEntry._check"""
745
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
746
raise BzrCheckError('symlink {%s} has text in revision {%s}'
747
% (self.file_id, rev_id))
748
if self.symlink_target is None:
749
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
750
% (self.file_id, rev_id))
753
other = InventoryLink(self.file_id, self.name, self.parent_id)
754
other.symlink_target = self.symlink_target
755
other.revision = self.revision
758
def detect_changes(self, old_entry):
759
"""See InventoryEntry.detect_changes."""
760
# FIXME: which _modified field should we use ? RBC 20051003
761
text_modified = (self.symlink_target != old_entry.symlink_target)
763
mutter(" symlink target changed")
764
meta_modified = False
765
return text_modified, meta_modified
767
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
768
output_to, reverse=False):
769
"""See InventoryEntry._diff."""
770
from_text = self.symlink_target
771
if to_entry is not None:
772
to_text = to_entry.symlink_target
777
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
780
print >>output_to, '=== target was %r' % self.symlink_target
782
print >>output_to, '=== target is %r' % self.symlink_target
784
def __init__(self, file_id, name, parent_id):
785
super(InventoryLink, self).__init__(file_id, name, parent_id)
786
self.kind = 'symlink'
788
def kind_character(self):
789
"""See InventoryEntry.kind_character."""
792
def _put_in_tar(self, item, tree):
793
"""See InventoryEntry._put_in_tar."""
794
item.type = tarfile.SYMTYPE
798
item.linkname = self.symlink_target
801
def _put_on_disk(self, fullpath, tree):
802
"""See InventoryEntry._put_on_disk."""
804
os.symlink(self.symlink_target, fullpath)
806
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
808
def _read_tree_state(self, path, work_tree):
809
"""See InventoryEntry._read_tree_state."""
810
self.symlink_target = work_tree.get_symlink_target(self.file_id)
812
def _forget_tree_state(self):
813
self.symlink_target = None
815
def _unchanged(self, previous_ie):
816
"""See InventoryEntry._unchanged."""
817
compatible = super(InventoryLink, self)._unchanged(previous_ie)
818
if self.symlink_target != previous_ie.symlink_target:
822
def _snapshot_text(self, file_parents, work_tree, commit_builder):
823
"""See InventoryEntry._snapshot_text."""
824
commit_builder.modified_link(
825
self.file_id, file_parents, self.symlink_target)
828
class Inventory(object):
829
"""Inventory of versioned files in a tree.
831
This describes which file_id is present at each point in the tree,
832
and possibly the SHA-1 or other information about the file.
833
Entries can be looked up either by path or by file_id.
835
The inventory represents a typical unix file tree, with
836
directories containing files and subdirectories. We never store
837
the full path to a file, because renaming a directory implicitly
838
moves all of its contents. This class internally maintains a
839
lookup tree that allows the children under a directory to be
842
InventoryEntry objects must not be modified after they are
843
inserted, other than through the Inventory API.
845
>>> inv = Inventory()
846
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
847
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
848
>>> inv['123-123'].name
851
May be treated as an iterator or set to look up file ids:
853
>>> bool(inv.path2id('hello.c'))
858
May also look up by name:
860
>>> [x[0] for x in inv.iter_entries()]
862
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
863
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
864
Traceback (most recent call last):
865
BzrError: parent_id {TREE_ROOT} not in inventory
866
>>> inv.add(InventoryFile('123-123', 'hello.c', 'TREE_ROOT-12345678-12345678'))
867
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678', sha1=None, len=None)
869
def __init__(self, root_id=ROOT_ID, revision_id=None):
870
"""Create or read an inventory.
872
If a working directory is specified, the inventory is read
873
from there. If the file is specified, read from that. If not,
874
the inventory is created empty.
876
The inventory is created with a default root directory, with
879
if root_id is not None:
880
assert root_id.__class__ == str
881
self._set_root(InventoryDirectory(root_id, u'', None))
885
self.revision_id = revision_id
887
def _set_root(self, ie):
889
self._byid = {self.root.file_id: self.root}
892
# TODO: jam 20051218 Should copy also copy the revision_id?
893
entries = self.iter_entries()
894
other = Inventory(entries.next()[1].file_id)
895
# copy recursively so we know directories will be added before
896
# their children. There are more efficient ways than this...
897
for path, entry in entries():
898
other.add(entry.copy())
902
return iter(self._byid)
905
"""Returns number of entries."""
906
return len(self._byid)
908
def iter_entries(self, from_dir=None):
909
"""Return (path, entry) pairs, in order by name."""
911
if self.root is None:
915
elif isinstance(from_dir, basestring):
916
from_dir = self._byid[from_dir]
918
# unrolling the recursive called changed the time from
919
# 440ms/663ms (inline/total) to 116ms/116ms
920
children = from_dir.children.items()
922
children = collections.deque(children)
923
stack = [(u'', children)]
925
from_dir_relpath, children = stack[-1]
928
name, ie = children.popleft()
930
# we know that from_dir_relpath never ends in a slash
931
# and 'f' doesn't begin with one, we can do a string op, rather
932
# than the checks of pathjoin(), though this means that all paths
934
path = from_dir_relpath + '/' + name
938
if ie.kind != 'directory':
941
# But do this child first
942
new_children = ie.children.items()
944
new_children = collections.deque(new_children)
945
stack.append((path, new_children))
946
# Break out of inner loop, so that we start outer loop with child
949
# if we finished all children, pop it off the stack
952
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None):
953
"""Iterate over the entries in a directory first order.
955
This returns all entries for a directory before returning
956
the entries for children of a directory. This is not
957
lexicographically sorted order, and is a hybrid between
958
depth-first and breadth-first.
960
:return: This yields (path, entry) pairs
962
if specific_file_ids:
963
specific_file_ids = [osutils.safe_file_id(fid)
964
for fid in specific_file_ids]
965
# TODO? Perhaps this should return the from_dir so that the root is
966
# yielded? or maybe an option?
968
if self.root is None:
970
# Optimize a common case
971
if specific_file_ids is not None and len(specific_file_ids) == 1:
972
file_id = list(specific_file_ids)[0]
974
yield self.id2path(file_id), self[file_id]
977
if (specific_file_ids is None or
978
self.root.file_id in specific_file_ids):
980
elif isinstance(from_dir, basestring):
981
from_dir = self._byid[from_dir]
983
if specific_file_ids is not None:
985
def add_ancestors(file_id):
986
if file_id not in self:
988
parent_id = self[file_id].parent_id
989
if parent_id is None:
991
if parent_id not in parents:
992
parents.add(parent_id)
993
add_ancestors(parent_id)
994
for file_id in specific_file_ids:
995
add_ancestors(file_id)
999
stack = [(u'', from_dir)]
1001
cur_relpath, cur_dir = stack.pop()
1004
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
1006
child_relpath = cur_relpath + child_name
1008
if (specific_file_ids is None or
1009
child_ie.file_id in specific_file_ids):
1010
yield child_relpath, child_ie
1012
if child_ie.kind == 'directory':
1013
if parents is None or child_ie.file_id in parents:
1014
child_dirs.append((child_relpath+'/', child_ie))
1015
stack.extend(reversed(child_dirs))
1018
"""Return list of (path, ie) for all entries except the root.
1020
This may be faster than iter_entries.
1023
def descend(dir_ie, dir_path):
1024
kids = dir_ie.children.items()
1026
for name, ie in kids:
1027
child_path = osutils.pathjoin(dir_path, name)
1028
accum.append((child_path, ie))
1029
if ie.kind == 'directory':
1030
descend(ie, child_path)
1032
descend(self.root, u'')
1035
def directories(self):
1036
"""Return (path, entry) pairs for all directories, including the root.
1039
def descend(parent_ie, parent_path):
1040
accum.append((parent_path, parent_ie))
1042
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1045
for name, child_ie in kids:
1046
child_path = osutils.pathjoin(parent_path, name)
1047
descend(child_ie, child_path)
1048
descend(self.root, u'')
1051
def __contains__(self, file_id):
1052
"""True if this entry contains a file with given id.
1054
>>> inv = Inventory()
1055
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1056
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1062
file_id = osutils.safe_file_id(file_id)
1063
return (file_id in self._byid)
1065
def __getitem__(self, file_id):
1066
"""Return the entry for given file_id.
1068
>>> inv = Inventory()
1069
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1070
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1071
>>> inv['123123'].name
1074
file_id = osutils.safe_file_id(file_id)
1076
return self._byid[file_id]
1078
# really we're passing an inventory, not a tree...
1079
raise errors.NoSuchId(self, file_id)
1081
def get_file_kind(self, file_id):
1082
file_id = osutils.safe_file_id(file_id)
1083
return self._byid[file_id].kind
1085
def get_child(self, parent_id, filename):
1086
parent_id = osutils.safe_file_id(parent_id)
1087
return self[parent_id].children.get(filename)
1089
def add(self, entry):
1090
"""Add entry to inventory.
1092
To add a file to a branch ready to be committed, use Branch.add,
1095
Returns the new entry object.
1097
if entry.file_id in self._byid:
1098
raise BzrError("inventory already contains entry with id {%s}" % entry.file_id)
1100
if entry.parent_id is None:
1101
assert self.root is None and len(self._byid) == 0
1102
self._set_root(entry)
1105
parent = self._byid[entry.parent_id]
1107
raise BzrError("parent_id {%s} not in inventory" % entry.parent_id)
1109
if entry.name in parent.children:
1110
raise BzrError("%s is already versioned" %
1111
osutils.pathjoin(self.id2path(parent.file_id), entry.name))
1113
self._byid[entry.file_id] = entry
1114
parent.children[entry.name] = entry
1117
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1118
"""Add entry from a path.
1120
The immediate parent must already be versioned.
1122
Returns the new entry object."""
1124
parts = osutils.splitpath(relpath)
1128
file_id = generate_ids.gen_root_id()
1130
file_id = osutils.safe_file_id(file_id)
1131
self.root = InventoryDirectory(file_id, '', None)
1132
self._byid = {self.root.file_id: self.root}
1135
parent_path = parts[:-1]
1136
parent_id = self.path2id(parent_path)
1137
if parent_id is None:
1138
raise errors.NotVersionedError(path=parent_path)
1139
ie = make_entry(kind, parts[-1], parent_id, file_id)
1142
def __delitem__(self, file_id):
1143
"""Remove entry by id.
1145
>>> inv = Inventory()
1146
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1147
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1154
file_id = osutils.safe_file_id(file_id)
1157
assert ie.parent_id is None or \
1158
self[ie.parent_id].children[ie.name] == ie
1160
del self._byid[file_id]
1161
if ie.parent_id is not None:
1162
del self[ie.parent_id].children[ie.name]
1164
def __eq__(self, other):
1165
"""Compare two sets by comparing their contents.
1167
>>> i1 = Inventory()
1168
>>> i2 = Inventory()
1171
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1172
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1175
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1176
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1180
if not isinstance(other, Inventory):
1181
return NotImplemented
1183
return self._byid == other._byid
1185
def __ne__(self, other):
1186
return not self.__eq__(other)
1189
raise ValueError('not hashable')
1191
def _iter_file_id_parents(self, file_id):
1192
"""Yield the parents of file_id up to the root."""
1193
file_id = osutils.safe_file_id(file_id)
1194
while file_id is not None:
1196
ie = self._byid[file_id]
1198
raise BzrError("file_id {%s} not found in inventory" % file_id)
1200
file_id = ie.parent_id
1202
def get_idpath(self, file_id):
1203
"""Return a list of file_ids for the path to an entry.
1205
The list contains one element for each directory followed by
1206
the id of the file itself. So the length of the returned list
1207
is equal to the depth of the file in the tree, counting the
1208
root directory as depth 1.
1210
file_id = osutils.safe_file_id(file_id)
1212
for parent in self._iter_file_id_parents(file_id):
1213
p.insert(0, parent.file_id)
1216
def id2path(self, file_id):
1217
"""Return as a string the path to file_id.
1220
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1221
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1222
>>> print i.id2path('foo-id')
1225
file_id = osutils.safe_file_id(file_id)
1226
# get all names, skipping root
1227
return '/'.join(reversed(
1228
[parent.name for parent in
1229
self._iter_file_id_parents(file_id)][:-1]))
1231
def path2id(self, name):
1232
"""Walk down through directories to return entry of last component.
1234
names may be either a list of path components, or a single
1235
string, in which case it is automatically split.
1237
This returns the entry of the last component in the path,
1238
which may be either a file or a directory.
1240
Returns None IFF the path is not found.
1242
if isinstance(name, basestring):
1243
name = osutils.splitpath(name)
1245
# mutter("lookup path %r" % name)
1252
children = getattr(parent, 'children', None)
1253
if children is None:
1256
assert cie.name == f
1257
assert cie.parent_id == parent.file_id
1260
# or raise an error?
1263
return parent.file_id
1265
def has_filename(self, names):
1266
return bool(self.path2id(names))
1268
def has_id(self, file_id):
1269
file_id = osutils.safe_file_id(file_id)
1270
return (file_id in self._byid)
1272
def remove_recursive_id(self, file_id):
1273
"""Remove file_id, and children, from the inventory.
1275
:param file_id: A file_id to remove.
1277
file_id = osutils.safe_file_id(file_id)
1278
to_find_delete = [self._byid[file_id]]
1280
while to_find_delete:
1281
ie = to_find_delete.pop()
1282
to_delete.append(ie.file_id)
1283
if ie.kind == 'directory':
1284
to_find_delete.extend(ie.children.values())
1285
for file_id in reversed(to_delete):
1287
del self._byid[file_id]
1288
if ie.parent_id is not None:
1289
del self[ie.parent_id].children[ie.name]
1291
def rename(self, file_id, new_parent_id, new_name):
1292
"""Move a file within the inventory.
1294
This can change either the name, or the parent, or both.
1296
This does not move the working file.
1298
file_id = osutils.safe_file_id(file_id)
1299
if not is_valid_name(new_name):
1300
raise BzrError("not an acceptable filename: %r" % new_name)
1302
new_parent = self._byid[new_parent_id]
1303
if new_name in new_parent.children:
1304
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1306
new_parent_idpath = self.get_idpath(new_parent_id)
1307
if file_id in new_parent_idpath:
1308
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1309
% (self.id2path(file_id), self.id2path(new_parent_id)))
1311
file_ie = self._byid[file_id]
1312
old_parent = self._byid[file_ie.parent_id]
1314
# TODO: Don't leave things messed up if this fails
1316
del old_parent.children[file_ie.name]
1317
new_parent.children[new_name] = file_ie
1319
file_ie.name = new_name
1320
file_ie.parent_id = new_parent_id
1322
def is_root(self, file_id):
1323
file_id = osutils.safe_file_id(file_id)
1324
return self.root is not None and file_id == self.root.file_id
1328
'directory':InventoryDirectory,
1329
'file':InventoryFile,
1330
'symlink':InventoryLink,
1333
def make_entry(kind, name, parent_id, file_id=None):
1334
"""Create an inventory entry.
1336
:param kind: the type of inventory entry to create.
1337
:param name: the basename of the entry.
1338
:param parent_id: the parent_id of the entry.
1339
:param file_id: the file_id to use. if None, one will be created.
1342
file_id = generate_ids.gen_file_id(name)
1344
file_id = osutils.safe_file_id(file_id)
1346
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1347
# keep them synchronised.
1348
# we dont import normalized_filename directly because we want to be
1349
# able to change the implementation at runtime for tests.
1350
norm_name, can_access = osutils.normalized_filename(name)
1351
if norm_name != name:
1355
# TODO: jam 20060701 This would probably be more useful
1356
# if the error was raised with the full path
1357
raise errors.InvalidNormalization(name)
1360
factory = entry_factory[kind]
1362
raise BzrError("unknown kind %r" % kind)
1363
return factory(file_id, name, parent_id)
1368
def is_valid_name(name):
1370
if _NAME_RE is None:
1371
_NAME_RE = re.compile(r'^[^/\\]+$')
1373
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
