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# Copyright (C) 2005, 2006, 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# 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('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', 'tree-reference'))
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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']
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def _check(self, checker, rev_id, tree):
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"""See InventoryEntry._check"""
741
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
742
raise BzrCheckError('symlink {%s} has text in revision {%s}'
743
% (self.file_id, rev_id))
744
if self.symlink_target is None:
745
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
746
% (self.file_id, rev_id))
749
other = InventoryLink(self.file_id, self.name, self.parent_id)
750
other.symlink_target = self.symlink_target
751
other.revision = self.revision
754
def detect_changes(self, old_entry):
755
"""See InventoryEntry.detect_changes."""
756
# FIXME: which _modified field should we use ? RBC 20051003
757
text_modified = (self.symlink_target != old_entry.symlink_target)
759
mutter(" symlink target changed")
760
meta_modified = False
761
return text_modified, meta_modified
763
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
764
output_to, reverse=False):
765
"""See InventoryEntry._diff."""
766
from_text = self.symlink_target
767
if to_entry is not None:
768
to_text = to_entry.symlink_target
773
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
776
print >>output_to, '=== target was %r' % self.symlink_target
778
print >>output_to, '=== target is %r' % self.symlink_target
780
def __init__(self, file_id, name, parent_id):
781
super(InventoryLink, self).__init__(file_id, name, parent_id)
782
self.kind = 'symlink'
784
def kind_character(self):
785
"""See InventoryEntry.kind_character."""
788
def _put_in_tar(self, item, tree):
789
"""See InventoryEntry._put_in_tar."""
790
item.type = tarfile.SYMTYPE
794
item.linkname = self.symlink_target
797
def _put_on_disk(self, fullpath, tree):
798
"""See InventoryEntry._put_on_disk."""
800
os.symlink(self.symlink_target, fullpath)
802
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
804
def _read_tree_state(self, path, work_tree):
805
"""See InventoryEntry._read_tree_state."""
806
self.symlink_target = work_tree.get_symlink_target(self.file_id)
808
def _forget_tree_state(self):
809
self.symlink_target = None
811
def _unchanged(self, previous_ie):
812
"""See InventoryEntry._unchanged."""
813
compatible = super(InventoryLink, self)._unchanged(previous_ie)
814
if self.symlink_target != previous_ie.symlink_target:
818
def _snapshot_text(self, file_parents, work_tree, commit_builder):
819
"""See InventoryEntry._snapshot_text."""
820
commit_builder.modified_link(
821
self.file_id, file_parents, self.symlink_target)
824
class TreeReference(InventoryEntry):
826
kind = 'tree-reference'
828
def __init__(self, file_id, name, parent_id, revision=None,
829
reference_revision=None):
830
InventoryEntry.__init__(self, file_id, name, parent_id)
831
self.revision = revision
832
self.reference_revision = reference_revision
835
return TreeReference(self.file_id, self.name, self.parent_id,
836
self.revision, self.reference_revision)
838
def _snapshot_text(self, file_parents, work_tree, commit_builder):
839
commit_builder.modified_reference(self.file_id, file_parents)
841
def _read_tree_state(self, path, work_tree):
842
"""Populate fields in the inventory entry from the given tree.
844
self.reference_revision = work_tree.get_reference_revision(self, path)
846
def _forget_tree_state(self):
847
self.reference_revision = None
850
class Inventory(object):
851
"""Inventory of versioned files in a tree.
853
This describes which file_id is present at each point in the tree,
854
and possibly the SHA-1 or other information about the file.
855
Entries can be looked up either by path or by file_id.
857
The inventory represents a typical unix file tree, with
858
directories containing files and subdirectories. We never store
859
the full path to a file, because renaming a directory implicitly
860
moves all of its contents. This class internally maintains a
861
lookup tree that allows the children under a directory to be
864
InventoryEntry objects must not be modified after they are
865
inserted, other than through the Inventory API.
867
>>> inv = Inventory()
868
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
869
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
870
>>> inv['123-123'].name
873
May be treated as an iterator or set to look up file ids:
875
>>> bool(inv.path2id('hello.c'))
880
May also look up by name:
882
>>> [x[0] for x in inv.iter_entries()]
884
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
885
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
886
Traceback (most recent call last):
887
BzrError: parent_id {TREE_ROOT} not in inventory
888
>>> inv.add(InventoryFile('123-123', 'hello.c', 'TREE_ROOT-12345678-12345678'))
889
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678', sha1=None, len=None)
891
def __init__(self, root_id=ROOT_ID, revision_id=None):
892
"""Create or read an inventory.
894
If a working directory is specified, the inventory is read
895
from there. If the file is specified, read from that. If not,
896
the inventory is created empty.
898
The inventory is created with a default root directory, with
901
if root_id is not None:
902
assert root_id.__class__ == str
903
self._set_root(InventoryDirectory(root_id, u'', None))
907
self.revision_id = revision_id
909
def _set_root(self, ie):
911
self._byid = {self.root.file_id: self.root}
914
# TODO: jam 20051218 Should copy also copy the revision_id?
915
entries = self.iter_entries()
916
other = Inventory(entries.next()[1].file_id)
917
# copy recursively so we know directories will be added before
918
# their children. There are more efficient ways than this...
919
for path, entry in entries():
920
other.add(entry.copy())
924
return iter(self._byid)
927
"""Returns number of entries."""
928
return len(self._byid)
930
def iter_entries(self, from_dir=None):
931
"""Return (path, entry) pairs, in order by name."""
933
if self.root is None:
937
elif isinstance(from_dir, basestring):
938
from_dir = self._byid[from_dir]
940
# unrolling the recursive called changed the time from
941
# 440ms/663ms (inline/total) to 116ms/116ms
942
children = from_dir.children.items()
944
children = collections.deque(children)
945
stack = [(u'', children)]
947
from_dir_relpath, children = stack[-1]
950
name, ie = children.popleft()
952
# we know that from_dir_relpath never ends in a slash
953
# and 'f' doesn't begin with one, we can do a string op, rather
954
# than the checks of pathjoin(), though this means that all paths
956
path = from_dir_relpath + '/' + name
960
if ie.kind != 'directory':
963
# But do this child first
964
new_children = ie.children.items()
966
new_children = collections.deque(new_children)
967
stack.append((path, new_children))
968
# Break out of inner loop, so that we start outer loop with child
971
# if we finished all children, pop it off the stack
974
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None):
975
"""Iterate over the entries in a directory first order.
977
This returns all entries for a directory before returning
978
the entries for children of a directory. This is not
979
lexicographically sorted order, and is a hybrid between
980
depth-first and breadth-first.
982
:return: This yields (path, entry) pairs
984
if specific_file_ids:
985
safe = osutils.safe_file_id
986
specific_file_ids = set(safe(fid) for fid in specific_file_ids)
987
# TODO? Perhaps this should return the from_dir so that the root is
988
# yielded? or maybe an option?
990
if self.root is None:
992
# Optimize a common case
993
if specific_file_ids is not None and len(specific_file_ids) == 1:
994
file_id = list(specific_file_ids)[0]
996
yield self.id2path(file_id), self[file_id]
999
if (specific_file_ids is None or
1000
self.root.file_id in specific_file_ids):
1001
yield u'', self.root
1002
elif isinstance(from_dir, basestring):
1003
from_dir = self._byid[from_dir]
1005
if specific_file_ids is not None:
1007
def add_ancestors(file_id):
1008
if file_id not in self:
1010
parent_id = self[file_id].parent_id
1011
if parent_id is None:
1013
if parent_id not in parents:
1014
parents.add(parent_id)
1015
add_ancestors(parent_id)
1016
for file_id in specific_file_ids:
1017
add_ancestors(file_id)
1021
stack = [(u'', from_dir)]
1023
cur_relpath, cur_dir = stack.pop()
1026
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
1028
child_relpath = cur_relpath + child_name
1030
if (specific_file_ids is None or
1031
child_ie.file_id in specific_file_ids):
1032
yield child_relpath, child_ie
1034
if child_ie.kind == 'directory':
1035
if parents is None or child_ie.file_id in parents:
1036
child_dirs.append((child_relpath+'/', child_ie))
1037
stack.extend(reversed(child_dirs))
1040
"""Return list of (path, ie) for all entries except the root.
1042
This may be faster than iter_entries.
1045
def descend(dir_ie, dir_path):
1046
kids = dir_ie.children.items()
1048
for name, ie in kids:
1049
child_path = osutils.pathjoin(dir_path, name)
1050
accum.append((child_path, ie))
1051
if ie.kind == 'directory':
1052
descend(ie, child_path)
1054
descend(self.root, u'')
1057
def directories(self):
1058
"""Return (path, entry) pairs for all directories, including the root.
1061
def descend(parent_ie, parent_path):
1062
accum.append((parent_path, parent_ie))
1064
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1067
for name, child_ie in kids:
1068
child_path = osutils.pathjoin(parent_path, name)
1069
descend(child_ie, child_path)
1070
descend(self.root, u'')
1073
def __contains__(self, file_id):
1074
"""True if this entry contains a file with given id.
1076
>>> inv = Inventory()
1077
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1078
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1084
file_id = osutils.safe_file_id(file_id)
1085
return (file_id in self._byid)
1087
def __getitem__(self, file_id):
1088
"""Return the entry for given file_id.
1090
>>> inv = Inventory()
1091
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1092
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1093
>>> inv['123123'].name
1096
file_id = osutils.safe_file_id(file_id)
1098
return self._byid[file_id]
1100
# really we're passing an inventory, not a tree...
1101
raise errors.NoSuchId(self, file_id)
1103
def get_file_kind(self, file_id):
1104
file_id = osutils.safe_file_id(file_id)
1105
return self._byid[file_id].kind
1107
def get_child(self, parent_id, filename):
1108
parent_id = osutils.safe_file_id(parent_id)
1109
return self[parent_id].children.get(filename)
1111
def _add_child(self, entry):
1112
"""Add an entry to the inventory, without adding it to its parent"""
1113
if entry.file_id in self._byid:
1114
raise BzrError("inventory already contains entry with id {%s}" %
1116
self._byid[entry.file_id] = entry
1117
for child in getattr(entry, 'children', {}).itervalues():
1118
self._add_child(child)
1121
def add(self, entry):
1122
"""Add entry to inventory.
1124
To add a file to a branch ready to be committed, use Branch.add,
1127
Returns the new entry object.
1129
if entry.file_id in self._byid:
1130
raise errors.DuplicateFileId(entry.file_id,
1131
self._byid[entry.file_id])
1133
if entry.parent_id is None:
1134
assert self.root is None and len(self._byid) == 0
1138
parent = self._byid[entry.parent_id]
1140
raise BzrError("parent_id {%s} not in inventory" %
1143
if entry.name in parent.children:
1144
raise BzrError("%s is already versioned" %
1145
osutils.pathjoin(self.id2path(parent.file_id),
1147
parent.children[entry.name] = entry
1148
return self._add_child(entry)
1150
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1151
"""Add entry from a path.
1153
The immediate parent must already be versioned.
1155
Returns the new entry object."""
1157
parts = osutils.splitpath(relpath)
1161
file_id = generate_ids.gen_root_id()
1163
file_id = osutils.safe_file_id(file_id)
1164
self.root = InventoryDirectory(file_id, '', None)
1165
self._byid = {self.root.file_id: self.root}
1168
parent_path = parts[:-1]
1169
parent_id = self.path2id(parent_path)
1170
if parent_id is None:
1171
raise errors.NotVersionedError(path=parent_path)
1172
ie = make_entry(kind, parts[-1], parent_id, file_id)
1175
def __delitem__(self, file_id):
1176
"""Remove entry by id.
1178
>>> inv = Inventory()
1179
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1180
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1187
file_id = osutils.safe_file_id(file_id)
1190
assert ie.parent_id is None or \
1191
self[ie.parent_id].children[ie.name] == ie
1193
del self._byid[file_id]
1194
if ie.parent_id is not None:
1195
del self[ie.parent_id].children[ie.name]
1197
def __eq__(self, other):
1198
"""Compare two sets by comparing their contents.
1200
>>> i1 = Inventory()
1201
>>> i2 = Inventory()
1204
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1205
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1208
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1209
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1213
if not isinstance(other, Inventory):
1214
return NotImplemented
1216
return self._byid == other._byid
1218
def __ne__(self, other):
1219
return not self.__eq__(other)
1222
raise ValueError('not hashable')
1224
def _iter_file_id_parents(self, file_id):
1225
"""Yield the parents of file_id up to the root."""
1226
file_id = osutils.safe_file_id(file_id)
1227
while file_id is not None:
1229
ie = self._byid[file_id]
1231
raise errors.NoSuchId(tree=None, file_id=file_id)
1233
file_id = ie.parent_id
1235
def get_idpath(self, file_id):
1236
"""Return a list of file_ids for the path to an entry.
1238
The list contains one element for each directory followed by
1239
the id of the file itself. So the length of the returned list
1240
is equal to the depth of the file in the tree, counting the
1241
root directory as depth 1.
1243
file_id = osutils.safe_file_id(file_id)
1245
for parent in self._iter_file_id_parents(file_id):
1246
p.insert(0, parent.file_id)
1249
def id2path(self, file_id):
1250
"""Return as a string the path to file_id.
1253
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1254
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1255
>>> print i.id2path('foo-id')
1258
file_id = osutils.safe_file_id(file_id)
1259
# get all names, skipping root
1260
return '/'.join(reversed(
1261
[parent.name for parent in
1262
self._iter_file_id_parents(file_id)][:-1]))
1264
def path2id(self, name):
1265
"""Walk down through directories to return entry of last component.
1267
names may be either a list of path components, or a single
1268
string, in which case it is automatically split.
1270
This returns the entry of the last component in the path,
1271
which may be either a file or a directory.
1273
Returns None IFF the path is not found.
1275
if isinstance(name, basestring):
1276
name = osutils.splitpath(name)
1278
# mutter("lookup path %r" % name)
1285
children = getattr(parent, 'children', None)
1286
if children is None:
1289
assert cie.name == f
1290
assert cie.parent_id == parent.file_id
1293
# or raise an error?
1296
return parent.file_id
1298
def has_filename(self, names):
1299
return bool(self.path2id(names))
1301
def has_id(self, file_id):
1302
file_id = osutils.safe_file_id(file_id)
1303
return (file_id in self._byid)
1305
def remove_recursive_id(self, file_id):
1306
"""Remove file_id, and children, from the inventory.
1308
:param file_id: A file_id to remove.
1310
file_id = osutils.safe_file_id(file_id)
1311
to_find_delete = [self._byid[file_id]]
1313
while to_find_delete:
1314
ie = to_find_delete.pop()
1315
to_delete.append(ie.file_id)
1316
if ie.kind == 'directory':
1317
to_find_delete.extend(ie.children.values())
1318
for file_id in reversed(to_delete):
1320
del self._byid[file_id]
1321
if ie.parent_id is not None:
1322
del self[ie.parent_id].children[ie.name]
1324
def rename(self, file_id, new_parent_id, new_name):
1325
"""Move a file within the inventory.
1327
This can change either the name, or the parent, or both.
1329
This does not move the working file.
1331
file_id = osutils.safe_file_id(file_id)
1332
if not is_valid_name(new_name):
1333
raise BzrError("not an acceptable filename: %r" % new_name)
1335
new_parent = self._byid[new_parent_id]
1336
if new_name in new_parent.children:
1337
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1339
new_parent_idpath = self.get_idpath(new_parent_id)
1340
if file_id in new_parent_idpath:
1341
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1342
% (self.id2path(file_id), self.id2path(new_parent_id)))
1344
file_ie = self._byid[file_id]
1345
old_parent = self._byid[file_ie.parent_id]
1347
# TODO: Don't leave things messed up if this fails
1349
del old_parent.children[file_ie.name]
1350
new_parent.children[new_name] = file_ie
1352
file_ie.name = new_name
1353
file_ie.parent_id = new_parent_id
1355
def is_root(self, file_id):
1356
file_id = osutils.safe_file_id(file_id)
1357
return self.root is not None and file_id == self.root.file_id
1361
'directory': InventoryDirectory,
1362
'file': InventoryFile,
1363
'symlink': InventoryLink,
1364
'tree-reference': TreeReference
1367
def make_entry(kind, name, parent_id, file_id=None):
1368
"""Create an inventory entry.
1370
:param kind: the type of inventory entry to create.
1371
:param name: the basename of the entry.
1372
:param parent_id: the parent_id of the entry.
1373
:param file_id: the file_id to use. if None, one will be created.
1376
file_id = generate_ids.gen_file_id(name)
1378
file_id = osutils.safe_file_id(file_id)
1380
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1381
# keep them synchronised.
1382
# we dont import normalized_filename directly because we want to be
1383
# able to change the implementation at runtime for tests.
1384
norm_name, can_access = osutils.normalized_filename(name)
1385
if norm_name != name:
1389
# TODO: jam 20060701 This would probably be more useful
1390
# if the error was raised with the full path
1391
raise errors.InvalidNormalization(name)
1394
factory = entry_factory[kind]
1396
raise BzrError("unknown kind %r" % kind)
1397
return factory(file_id, name, parent_id)
1402
def is_valid_name(name):
1404
if _NAME_RE is None:
1405
_NAME_RE = re.compile(r'^[^/\\]+$')
1407
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
