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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, topo_sorted=False))
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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.kind != self.kind:
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# Can't be a candidate if the kind has changed.
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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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self.reference_revision = 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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and (self.reference_revision == other.reference_revision)
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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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elif previous_ie.kind != self.kind:
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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', 'reference_revision']
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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', 'reference_revision']
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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', 'reference_revision']
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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."""
742
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
743
'text_id', 'parent_id', 'children', 'executable',
744
'revision', 'symlink_target', 'reference_revision']
746
def _check(self, checker, rev_id, tree):
747
"""See InventoryEntry._check"""
748
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
749
raise BzrCheckError('symlink {%s} has text in revision {%s}'
750
% (self.file_id, rev_id))
751
if self.symlink_target is None:
752
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
753
% (self.file_id, rev_id))
756
other = InventoryLink(self.file_id, self.name, self.parent_id)
757
other.symlink_target = self.symlink_target
758
other.revision = self.revision
761
def detect_changes(self, old_entry):
762
"""See InventoryEntry.detect_changes."""
763
# FIXME: which _modified field should we use ? RBC 20051003
764
text_modified = (self.symlink_target != old_entry.symlink_target)
766
mutter(" symlink target changed")
767
meta_modified = False
768
return text_modified, meta_modified
770
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
771
output_to, reverse=False):
772
"""See InventoryEntry._diff."""
773
from_text = self.symlink_target
774
if to_entry is not None:
775
to_text = to_entry.symlink_target
780
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
783
print >>output_to, '=== target was %r' % self.symlink_target
785
print >>output_to, '=== target is %r' % self.symlink_target
787
def __init__(self, file_id, name, parent_id):
788
super(InventoryLink, self).__init__(file_id, name, parent_id)
789
self.kind = 'symlink'
791
def kind_character(self):
792
"""See InventoryEntry.kind_character."""
795
def _put_in_tar(self, item, tree):
796
"""See InventoryEntry._put_in_tar."""
797
item.type = tarfile.SYMTYPE
801
item.linkname = self.symlink_target
804
def _put_on_disk(self, fullpath, tree):
805
"""See InventoryEntry._put_on_disk."""
807
os.symlink(self.symlink_target, fullpath)
809
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
811
def _read_tree_state(self, path, work_tree):
812
"""See InventoryEntry._read_tree_state."""
813
self.symlink_target = work_tree.get_symlink_target(self.file_id)
815
def _forget_tree_state(self):
816
self.symlink_target = None
818
def _unchanged(self, previous_ie):
819
"""See InventoryEntry._unchanged."""
820
compatible = super(InventoryLink, self)._unchanged(previous_ie)
821
if self.symlink_target != previous_ie.symlink_target:
825
def _snapshot_text(self, file_parents, work_tree, commit_builder):
826
"""See InventoryEntry._snapshot_text."""
827
commit_builder.modified_link(
828
self.file_id, file_parents, self.symlink_target)
831
class TreeReference(InventoryEntry):
833
kind = 'tree-reference'
835
def __init__(self, file_id, name, parent_id, revision=None,
836
reference_revision=None):
837
InventoryEntry.__init__(self, file_id, name, parent_id)
838
self.revision = revision
839
self.reference_revision = reference_revision
842
return TreeReference(self.file_id, self.name, self.parent_id,
843
self.revision, self.reference_revision)
845
def _snapshot_text(self, file_parents, work_tree, commit_builder):
846
commit_builder.modified_reference(self.file_id, file_parents)
848
def _read_tree_state(self, path, work_tree):
849
"""Populate fields in the inventory entry from the given tree.
851
self.reference_revision = work_tree.get_reference_revision(
854
def _forget_tree_state(self):
855
self.reference_revision = None
858
class Inventory(object):
859
"""Inventory of versioned files in a tree.
861
This describes which file_id is present at each point in the tree,
862
and possibly the SHA-1 or other information about the file.
863
Entries can be looked up either by path or by file_id.
865
The inventory represents a typical unix file tree, with
866
directories containing files and subdirectories. We never store
867
the full path to a file, because renaming a directory implicitly
868
moves all of its contents. This class internally maintains a
869
lookup tree that allows the children under a directory to be
872
InventoryEntry objects must not be modified after they are
873
inserted, other than through the Inventory API.
875
>>> inv = Inventory()
876
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
877
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
878
>>> inv['123-123'].name
881
May be treated as an iterator or set to look up file ids:
883
>>> bool(inv.path2id('hello.c'))
888
May also look up by name:
890
>>> [x[0] for x in inv.iter_entries()]
892
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
893
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
894
Traceback (most recent call last):
895
BzrError: parent_id {TREE_ROOT} not in inventory
896
>>> inv.add(InventoryFile('123-123', 'hello.c', 'TREE_ROOT-12345678-12345678'))
897
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678', sha1=None, len=None)
899
def __init__(self, root_id=ROOT_ID, revision_id=None):
900
"""Create or read an inventory.
902
If a working directory is specified, the inventory is read
903
from there. If the file is specified, read from that. If not,
904
the inventory is created empty.
906
The inventory is created with a default root directory, with
909
if root_id is not None:
910
assert root_id.__class__ == str
911
self._set_root(InventoryDirectory(root_id, u'', None))
915
self.revision_id = revision_id
917
def _set_root(self, ie):
919
self._byid = {self.root.file_id: self.root}
922
# TODO: jam 20051218 Should copy also copy the revision_id?
923
entries = self.iter_entries()
924
other = Inventory(entries.next()[1].file_id)
925
# copy recursively so we know directories will be added before
926
# their children. There are more efficient ways than this...
927
for path, entry in entries():
928
other.add(entry.copy())
932
return iter(self._byid)
935
"""Returns number of entries."""
936
return len(self._byid)
938
def iter_entries(self, from_dir=None):
939
"""Return (path, entry) pairs, in order by name."""
941
if self.root is None:
945
elif isinstance(from_dir, basestring):
946
from_dir = self._byid[from_dir]
948
# unrolling the recursive called changed the time from
949
# 440ms/663ms (inline/total) to 116ms/116ms
950
children = from_dir.children.items()
952
children = collections.deque(children)
953
stack = [(u'', children)]
955
from_dir_relpath, children = stack[-1]
958
name, ie = children.popleft()
960
# we know that from_dir_relpath never ends in a slash
961
# and 'f' doesn't begin with one, we can do a string op, rather
962
# than the checks of pathjoin(), though this means that all paths
964
path = from_dir_relpath + '/' + name
968
if ie.kind != 'directory':
971
# But do this child first
972
new_children = ie.children.items()
974
new_children = collections.deque(new_children)
975
stack.append((path, new_children))
976
# Break out of inner loop, so that we start outer loop with child
979
# if we finished all children, pop it off the stack
982
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None):
983
"""Iterate over the entries in a directory first order.
985
This returns all entries for a directory before returning
986
the entries for children of a directory. This is not
987
lexicographically sorted order, and is a hybrid between
988
depth-first and breadth-first.
990
:return: This yields (path, entry) pairs
992
if specific_file_ids:
993
safe = osutils.safe_file_id
994
specific_file_ids = set(safe(fid) for fid in specific_file_ids)
995
# TODO? Perhaps this should return the from_dir so that the root is
996
# yielded? or maybe an option?
998
if self.root is None:
1000
# Optimize a common case
1001
if specific_file_ids is not None and len(specific_file_ids) == 1:
1002
file_id = list(specific_file_ids)[0]
1004
yield self.id2path(file_id), self[file_id]
1006
from_dir = self.root
1007
if (specific_file_ids is None or
1008
self.root.file_id in specific_file_ids):
1009
yield u'', self.root
1010
elif isinstance(from_dir, basestring):
1011
from_dir = self._byid[from_dir]
1013
if specific_file_ids is not None:
1014
# TODO: jam 20070302 This could really be done as a loop rather
1015
# than a bunch of recursive calls.
1018
def add_ancestors(file_id):
1019
if file_id not in byid:
1021
parent_id = byid[file_id].parent_id
1022
if parent_id is None:
1024
if parent_id not in parents:
1025
parents.add(parent_id)
1026
add_ancestors(parent_id)
1027
for file_id in specific_file_ids:
1028
add_ancestors(file_id)
1032
stack = [(u'', from_dir)]
1034
cur_relpath, cur_dir = stack.pop()
1037
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
1039
child_relpath = cur_relpath + child_name
1041
if (specific_file_ids is None or
1042
child_ie.file_id in specific_file_ids):
1043
yield child_relpath, child_ie
1045
if child_ie.kind == 'directory':
1046
if parents is None or child_ie.file_id in parents:
1047
child_dirs.append((child_relpath+'/', child_ie))
1048
stack.extend(reversed(child_dirs))
1050
def make_entry(self, kind, name, parent_id, file_id=None):
1051
"""Simple thunk to bzrlib.inventory.make_entry."""
1052
return make_entry(kind, name, parent_id, file_id)
1055
"""Return list of (path, ie) for all entries except the root.
1057
This may be faster than iter_entries.
1060
def descend(dir_ie, dir_path):
1061
kids = dir_ie.children.items()
1063
for name, ie in kids:
1064
child_path = osutils.pathjoin(dir_path, name)
1065
accum.append((child_path, ie))
1066
if ie.kind == 'directory':
1067
descend(ie, child_path)
1069
descend(self.root, u'')
1072
def directories(self):
1073
"""Return (path, entry) pairs for all directories, including the root.
1076
def descend(parent_ie, parent_path):
1077
accum.append((parent_path, parent_ie))
1079
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1082
for name, child_ie in kids:
1083
child_path = osutils.pathjoin(parent_path, name)
1084
descend(child_ie, child_path)
1085
descend(self.root, u'')
1088
def __contains__(self, file_id):
1089
"""True if this entry contains a file with given id.
1091
>>> inv = Inventory()
1092
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1093
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1099
file_id = osutils.safe_file_id(file_id)
1100
return (file_id in self._byid)
1102
def __getitem__(self, file_id):
1103
"""Return the entry for given file_id.
1105
>>> inv = Inventory()
1106
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1107
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1108
>>> inv['123123'].name
1111
file_id = osutils.safe_file_id(file_id)
1113
return self._byid[file_id]
1115
# really we're passing an inventory, not a tree...
1116
raise errors.NoSuchId(self, file_id)
1118
def get_file_kind(self, file_id):
1119
file_id = osutils.safe_file_id(file_id)
1120
return self._byid[file_id].kind
1122
def get_child(self, parent_id, filename):
1123
parent_id = osutils.safe_file_id(parent_id)
1124
return self[parent_id].children.get(filename)
1126
def _add_child(self, entry):
1127
"""Add an entry to the inventory, without adding it to its parent"""
1128
if entry.file_id in self._byid:
1129
raise BzrError("inventory already contains entry with id {%s}" %
1131
self._byid[entry.file_id] = entry
1132
for child in getattr(entry, 'children', {}).itervalues():
1133
self._add_child(child)
1136
def add(self, entry):
1137
"""Add entry to inventory.
1139
To add a file to a branch ready to be committed, use Branch.add,
1142
Returns the new entry object.
1144
if entry.file_id in self._byid:
1145
raise errors.DuplicateFileId(entry.file_id,
1146
self._byid[entry.file_id])
1148
if entry.parent_id is None:
1149
assert self.root is None and len(self._byid) == 0
1153
parent = self._byid[entry.parent_id]
1155
raise BzrError("parent_id {%s} not in inventory" %
1158
if entry.name in parent.children:
1159
raise BzrError("%s is already versioned" %
1160
osutils.pathjoin(self.id2path(parent.file_id),
1161
entry.name).encode('utf-8'))
1162
parent.children[entry.name] = entry
1163
return self._add_child(entry)
1165
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1166
"""Add entry from a path.
1168
The immediate parent must already be versioned.
1170
Returns the new entry object."""
1172
parts = osutils.splitpath(relpath)
1176
file_id = generate_ids.gen_root_id()
1178
file_id = osutils.safe_file_id(file_id)
1179
self.root = InventoryDirectory(file_id, '', None)
1180
self._byid = {self.root.file_id: self.root}
1183
parent_path = parts[:-1]
1184
parent_id = self.path2id(parent_path)
1185
if parent_id is None:
1186
raise errors.NotVersionedError(path=parent_path)
1187
ie = make_entry(kind, parts[-1], parent_id, file_id)
1190
def __delitem__(self, file_id):
1191
"""Remove entry by id.
1193
>>> inv = Inventory()
1194
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1195
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1202
file_id = osutils.safe_file_id(file_id)
1205
assert ie.parent_id is None or \
1206
self[ie.parent_id].children[ie.name] == ie
1208
del self._byid[file_id]
1209
if ie.parent_id is not None:
1210
del self[ie.parent_id].children[ie.name]
1212
def __eq__(self, other):
1213
"""Compare two sets by comparing their contents.
1215
>>> i1 = Inventory()
1216
>>> i2 = Inventory()
1219
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1220
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1223
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1224
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1228
if not isinstance(other, Inventory):
1229
return NotImplemented
1231
return self._byid == other._byid
1233
def __ne__(self, other):
1234
return not self.__eq__(other)
1237
raise ValueError('not hashable')
1239
def _iter_file_id_parents(self, file_id):
1240
"""Yield the parents of file_id up to the root."""
1241
file_id = osutils.safe_file_id(file_id)
1242
while file_id is not None:
1244
ie = self._byid[file_id]
1246
raise errors.NoSuchId(tree=None, file_id=file_id)
1248
file_id = ie.parent_id
1250
def get_idpath(self, file_id):
1251
"""Return a list of file_ids for the path to an entry.
1253
The list contains one element for each directory followed by
1254
the id of the file itself. So the length of the returned list
1255
is equal to the depth of the file in the tree, counting the
1256
root directory as depth 1.
1258
file_id = osutils.safe_file_id(file_id)
1260
for parent in self._iter_file_id_parents(file_id):
1261
p.insert(0, parent.file_id)
1264
def id2path(self, file_id):
1265
"""Return as a string the path to file_id.
1268
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1269
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1270
>>> print i.id2path('foo-id')
1273
file_id = osutils.safe_file_id(file_id)
1274
# get all names, skipping root
1275
return '/'.join(reversed(
1276
[parent.name for parent in
1277
self._iter_file_id_parents(file_id)][:-1]))
1279
def path2id(self, name):
1280
"""Walk down through directories to return entry of last component.
1282
names may be either a list of path components, or a single
1283
string, in which case it is automatically split.
1285
This returns the entry of the last component in the path,
1286
which may be either a file or a directory.
1288
Returns None IFF the path is not found.
1290
if isinstance(name, basestring):
1291
name = osutils.splitpath(name)
1293
# mutter("lookup path %r" % name)
1300
children = getattr(parent, 'children', None)
1301
if children is None:
1304
assert cie.name == f
1305
assert cie.parent_id == parent.file_id
1308
# or raise an error?
1311
return parent.file_id
1313
def has_filename(self, names):
1314
return bool(self.path2id(names))
1316
def has_id(self, file_id):
1317
file_id = osutils.safe_file_id(file_id)
1318
return (file_id in self._byid)
1320
def remove_recursive_id(self, file_id):
1321
"""Remove file_id, and children, from the inventory.
1323
:param file_id: A file_id to remove.
1325
file_id = osutils.safe_file_id(file_id)
1326
to_find_delete = [self._byid[file_id]]
1328
while to_find_delete:
1329
ie = to_find_delete.pop()
1330
to_delete.append(ie.file_id)
1331
if ie.kind == 'directory':
1332
to_find_delete.extend(ie.children.values())
1333
for file_id in reversed(to_delete):
1335
del self._byid[file_id]
1336
if ie.parent_id is not None:
1337
del self[ie.parent_id].children[ie.name]
1341
def rename(self, file_id, new_parent_id, new_name):
1342
"""Move a file within the inventory.
1344
This can change either the name, or the parent, or both.
1346
This does not move the working file.
1348
file_id = osutils.safe_file_id(file_id)
1349
if not is_valid_name(new_name):
1350
raise BzrError("not an acceptable filename: %r" % new_name)
1352
new_parent = self._byid[new_parent_id]
1353
if new_name in new_parent.children:
1354
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1356
new_parent_idpath = self.get_idpath(new_parent_id)
1357
if file_id in new_parent_idpath:
1358
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1359
% (self.id2path(file_id), self.id2path(new_parent_id)))
1361
file_ie = self._byid[file_id]
1362
old_parent = self._byid[file_ie.parent_id]
1364
# TODO: Don't leave things messed up if this fails
1366
del old_parent.children[file_ie.name]
1367
new_parent.children[new_name] = file_ie
1369
file_ie.name = new_name
1370
file_ie.parent_id = new_parent_id
1372
def is_root(self, file_id):
1373
file_id = osutils.safe_file_id(file_id)
1374
return self.root is not None and file_id == self.root.file_id
1378
'directory': InventoryDirectory,
1379
'file': InventoryFile,
1380
'symlink': InventoryLink,
1381
'tree-reference': TreeReference
1384
def make_entry(kind, name, parent_id, file_id=None):
1385
"""Create an inventory entry.
1387
:param kind: the type of inventory entry to create.
1388
:param name: the basename of the entry.
1389
:param parent_id: the parent_id of the entry.
1390
:param file_id: the file_id to use. if None, one will be created.
1393
file_id = generate_ids.gen_file_id(name)
1395
file_id = osutils.safe_file_id(file_id)
1397
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1398
# keep them synchronised.
1399
# we dont import normalized_filename directly because we want to be
1400
# able to change the implementation at runtime for tests.
1401
norm_name, can_access = osutils.normalized_filename(name)
1402
if norm_name != name:
1406
# TODO: jam 20060701 This would probably be more useful
1407
# if the error was raised with the full path
1408
raise errors.InvalidNormalization(name)
1411
factory = entry_factory[kind]
1413
raise BzrError("unknown kind %r" % kind)
1414
return factory(file_id, name, parent_id)
1419
def is_valid_name(name):
1421
if _NAME_RE is None:
1422
_NAME_RE = re.compile(r'^[^/\\]+$')
1424
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
