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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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:return: True if anything was recorded
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# cannot be unchanged unless there is only one parent file rev.
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self._read_tree_state(path, work_tree)
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if len(previous_entries) == 1:
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parent_ie = previous_entries.values()[0]
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if self._unchanged(parent_ie):
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self.revision = parent_ie.revision
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self.revision = revision
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return 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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:return: True if anything was recorded
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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, \
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("Binary files %s and %s differ" % label_pair).encode('utf8')
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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(self, revision, path, previous_entries,
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work_tree, commit_builder):
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"""See InventoryEntry.snapshot."""
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# Note: We use a custom implementation of this method for files
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# because it's a performance critical part of commit.
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# If this is the initial commit for this file, we know the sha is
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# coming later so skip caluculating it now (in _read_tree_state())
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if len(previous_entries) == 0:
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self.executable = work_tree.is_executable(self.file_id, path=path)
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self._read_tree_state(path, work_tree)
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# If nothing is changed from the sole parent, there's nothing to do
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if len(previous_entries) == 1:
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parent_ie = previous_entries.values()[0]
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if self._unchanged(parent_ie):
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self.revision = parent_ie.revision
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# Add the file to the repository
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self.revision = revision
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def get_content_byte_lines():
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return work_tree.get_file(self.file_id, path).readlines()
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self.text_sha1, self.text_size = commit_builder.modified_file_text(
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self.file_id, previous_entries, get_content_byte_lines,
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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:
746
class InventoryLink(InventoryEntry):
747
"""A file in an inventory."""
749
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
750
'text_id', 'parent_id', 'children', 'executable',
751
'revision', 'symlink_target', 'reference_revision']
753
def _check(self, checker, rev_id, tree):
754
"""See InventoryEntry._check"""
755
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
756
raise BzrCheckError('symlink {%s} has text in revision {%s}'
757
% (self.file_id, rev_id))
758
if self.symlink_target is None:
759
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
760
% (self.file_id, rev_id))
763
other = InventoryLink(self.file_id, self.name, self.parent_id)
764
other.symlink_target = self.symlink_target
765
other.revision = self.revision
768
def detect_changes(self, old_entry):
769
"""See InventoryEntry.detect_changes."""
770
# FIXME: which _modified field should we use ? RBC 20051003
771
text_modified = (self.symlink_target != old_entry.symlink_target)
773
mutter(" symlink target changed")
774
meta_modified = False
775
return text_modified, meta_modified
777
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
778
output_to, reverse=False):
779
"""See InventoryEntry._diff."""
780
from_text = self.symlink_target
781
if to_entry is not None:
782
to_text = to_entry.symlink_target
787
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
790
print >>output_to, '=== target was %r' % self.symlink_target
792
print >>output_to, '=== target is %r' % self.symlink_target
794
def __init__(self, file_id, name, parent_id):
795
super(InventoryLink, self).__init__(file_id, name, parent_id)
796
self.kind = 'symlink'
798
def kind_character(self):
799
"""See InventoryEntry.kind_character."""
802
def _put_in_tar(self, item, tree):
803
"""See InventoryEntry._put_in_tar."""
804
item.type = tarfile.SYMTYPE
808
item.linkname = self.symlink_target
811
def _put_on_disk(self, fullpath, tree):
812
"""See InventoryEntry._put_on_disk."""
814
os.symlink(self.symlink_target, fullpath)
816
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
818
def _read_tree_state(self, path, work_tree):
819
"""See InventoryEntry._read_tree_state."""
820
self.symlink_target = work_tree.get_symlink_target(self.file_id)
822
def _forget_tree_state(self):
823
self.symlink_target = None
825
def _unchanged(self, previous_ie):
826
"""See InventoryEntry._unchanged."""
827
compatible = super(InventoryLink, self)._unchanged(previous_ie)
828
if self.symlink_target != previous_ie.symlink_target:
832
def _snapshot_text(self, file_parents, work_tree, commit_builder):
833
"""See InventoryEntry._snapshot_text."""
834
commit_builder.modified_link(
835
self.file_id, file_parents, self.symlink_target)
839
class TreeReference(InventoryEntry):
841
kind = 'tree-reference'
843
def __init__(self, file_id, name, parent_id, revision=None,
844
reference_revision=None):
845
InventoryEntry.__init__(self, file_id, name, parent_id)
846
self.revision = revision
847
self.reference_revision = reference_revision
850
return TreeReference(self.file_id, self.name, self.parent_id,
851
self.revision, self.reference_revision)
853
def _snapshot_text(self, file_parents, work_tree, commit_builder):
854
commit_builder.modified_reference(self.file_id, file_parents)
857
def _read_tree_state(self, path, work_tree):
858
"""Populate fields in the inventory entry from the given tree.
860
self.reference_revision = work_tree.get_reference_revision(
863
def _forget_tree_state(self):
864
self.reference_revision = None
867
class Inventory(object):
868
"""Inventory of versioned files in a tree.
870
This describes which file_id is present at each point in the tree,
871
and possibly the SHA-1 or other information about the file.
872
Entries can be looked up either by path or by file_id.
874
The inventory represents a typical unix file tree, with
875
directories containing files and subdirectories. We never store
876
the full path to a file, because renaming a directory implicitly
877
moves all of its contents. This class internally maintains a
878
lookup tree that allows the children under a directory to be
881
InventoryEntry objects must not be modified after they are
882
inserted, other than through the Inventory API.
884
>>> inv = Inventory()
885
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
886
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
887
>>> inv['123-123'].name
890
May be treated as an iterator or set to look up file ids:
892
>>> bool(inv.path2id('hello.c'))
897
May also look up by name:
899
>>> [x[0] for x in inv.iter_entries()]
901
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
902
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
903
Traceback (most recent call last):
904
BzrError: parent_id {TREE_ROOT} not in inventory
905
>>> inv.add(InventoryFile('123-123', 'hello.c', 'TREE_ROOT-12345678-12345678'))
906
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678', sha1=None, len=None)
908
def __init__(self, root_id=ROOT_ID, revision_id=None):
909
"""Create or read an inventory.
911
If a working directory is specified, the inventory is read
912
from there. If the file is specified, read from that. If not,
913
the inventory is created empty.
915
The inventory is created with a default root directory, with
918
if root_id is not None:
919
assert root_id.__class__ == str
920
self._set_root(InventoryDirectory(root_id, u'', None))
924
self.revision_id = revision_id
926
def _set_root(self, ie):
928
self._byid = {self.root.file_id: self.root}
931
# TODO: jam 20051218 Should copy also copy the revision_id?
932
entries = self.iter_entries()
933
other = Inventory(entries.next()[1].file_id)
934
# copy recursively so we know directories will be added before
935
# their children. There are more efficient ways than this...
936
for path, entry in entries():
937
other.add(entry.copy())
941
return iter(self._byid)
944
"""Returns number of entries."""
945
return len(self._byid)
947
def iter_entries(self, from_dir=None):
948
"""Return (path, entry) pairs, in order by name."""
950
if self.root is None:
954
elif isinstance(from_dir, basestring):
955
from_dir = self._byid[from_dir]
957
# unrolling the recursive called changed the time from
958
# 440ms/663ms (inline/total) to 116ms/116ms
959
children = from_dir.children.items()
961
children = collections.deque(children)
962
stack = [(u'', children)]
964
from_dir_relpath, children = stack[-1]
967
name, ie = children.popleft()
969
# we know that from_dir_relpath never ends in a slash
970
# and 'f' doesn't begin with one, we can do a string op, rather
971
# than the checks of pathjoin(), though this means that all paths
973
path = from_dir_relpath + '/' + name
977
if ie.kind != 'directory':
980
# But do this child first
981
new_children = ie.children.items()
983
new_children = collections.deque(new_children)
984
stack.append((path, new_children))
985
# Break out of inner loop, so that we start outer loop with child
988
# if we finished all children, pop it off the stack
991
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None):
992
"""Iterate over the entries in a directory first order.
994
This returns all entries for a directory before returning
995
the entries for children of a directory. This is not
996
lexicographically sorted order, and is a hybrid between
997
depth-first and breadth-first.
999
:return: This yields (path, entry) pairs
1001
if specific_file_ids:
1002
safe = osutils.safe_file_id
1003
specific_file_ids = set(safe(fid) for fid in specific_file_ids)
1004
# TODO? Perhaps this should return the from_dir so that the root is
1005
# yielded? or maybe an option?
1006
if from_dir is None:
1007
if self.root is None:
1009
# Optimize a common case
1010
if specific_file_ids is not None and len(specific_file_ids) == 1:
1011
file_id = list(specific_file_ids)[0]
1013
yield self.id2path(file_id), self[file_id]
1015
from_dir = self.root
1016
if (specific_file_ids is None or
1017
self.root.file_id in specific_file_ids):
1018
yield u'', self.root
1019
elif isinstance(from_dir, basestring):
1020
from_dir = self._byid[from_dir]
1022
if specific_file_ids is not None:
1023
# TODO: jam 20070302 This could really be done as a loop rather
1024
# than a bunch of recursive calls.
1027
def add_ancestors(file_id):
1028
if file_id not in byid:
1030
parent_id = byid[file_id].parent_id
1031
if parent_id is None:
1033
if parent_id not in parents:
1034
parents.add(parent_id)
1035
add_ancestors(parent_id)
1036
for file_id in specific_file_ids:
1037
add_ancestors(file_id)
1041
stack = [(u'', from_dir)]
1043
cur_relpath, cur_dir = stack.pop()
1046
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
1048
child_relpath = cur_relpath + child_name
1050
if (specific_file_ids is None or
1051
child_ie.file_id in specific_file_ids):
1052
yield child_relpath, child_ie
1054
if child_ie.kind == 'directory':
1055
if parents is None or child_ie.file_id in parents:
1056
child_dirs.append((child_relpath+'/', child_ie))
1057
stack.extend(reversed(child_dirs))
1059
def make_entry(self, kind, name, parent_id, file_id=None):
1060
"""Simple thunk to bzrlib.inventory.make_entry."""
1061
return make_entry(kind, name, parent_id, file_id)
1064
"""Return list of (path, ie) for all entries except the root.
1066
This may be faster than iter_entries.
1069
def descend(dir_ie, dir_path):
1070
kids = dir_ie.children.items()
1072
for name, ie in kids:
1073
child_path = osutils.pathjoin(dir_path, name)
1074
accum.append((child_path, ie))
1075
if ie.kind == 'directory':
1076
descend(ie, child_path)
1078
descend(self.root, u'')
1081
def directories(self):
1082
"""Return (path, entry) pairs for all directories, including the root.
1085
def descend(parent_ie, parent_path):
1086
accum.append((parent_path, parent_ie))
1088
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1091
for name, child_ie in kids:
1092
child_path = osutils.pathjoin(parent_path, name)
1093
descend(child_ie, child_path)
1094
descend(self.root, u'')
1097
def __contains__(self, file_id):
1098
"""True if this entry contains a file with given id.
1100
>>> inv = Inventory()
1101
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1102
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1108
file_id = osutils.safe_file_id(file_id)
1109
return (file_id in self._byid)
1111
def __getitem__(self, file_id):
1112
"""Return the entry for given file_id.
1114
>>> inv = Inventory()
1115
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1116
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1117
>>> inv['123123'].name
1120
file_id = osutils.safe_file_id(file_id)
1122
return self._byid[file_id]
1124
# really we're passing an inventory, not a tree...
1125
raise errors.NoSuchId(self, file_id)
1127
def get_file_kind(self, file_id):
1128
file_id = osutils.safe_file_id(file_id)
1129
return self._byid[file_id].kind
1131
def get_child(self, parent_id, filename):
1132
parent_id = osutils.safe_file_id(parent_id)
1133
return self[parent_id].children.get(filename)
1135
def _add_child(self, entry):
1136
"""Add an entry to the inventory, without adding it to its parent"""
1137
if entry.file_id in self._byid:
1138
raise BzrError("inventory already contains entry with id {%s}" %
1140
self._byid[entry.file_id] = entry
1141
for child in getattr(entry, 'children', {}).itervalues():
1142
self._add_child(child)
1145
def add(self, entry):
1146
"""Add entry to inventory.
1148
To add a file to a branch ready to be committed, use Branch.add,
1151
Returns the new entry object.
1153
if entry.file_id in self._byid:
1154
raise errors.DuplicateFileId(entry.file_id,
1155
self._byid[entry.file_id])
1157
if entry.parent_id is None:
1158
assert self.root is None and len(self._byid) == 0
1162
parent = self._byid[entry.parent_id]
1164
raise BzrError("parent_id {%s} not in inventory" %
1167
if entry.name in parent.children:
1168
raise BzrError("%s is already versioned" %
1169
osutils.pathjoin(self.id2path(parent.file_id),
1170
entry.name).encode('utf-8'))
1171
parent.children[entry.name] = entry
1172
return self._add_child(entry)
1174
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1175
"""Add entry from a path.
1177
The immediate parent must already be versioned.
1179
Returns the new entry object."""
1181
parts = osutils.splitpath(relpath)
1185
file_id = generate_ids.gen_root_id()
1187
file_id = osutils.safe_file_id(file_id)
1188
self.root = InventoryDirectory(file_id, '', None)
1189
self._byid = {self.root.file_id: self.root}
1192
parent_path = parts[:-1]
1193
parent_id = self.path2id(parent_path)
1194
if parent_id is None:
1195
raise errors.NotVersionedError(path=parent_path)
1196
ie = make_entry(kind, parts[-1], parent_id, file_id)
1199
def __delitem__(self, file_id):
1200
"""Remove entry by id.
1202
>>> inv = Inventory()
1203
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1204
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1211
file_id = osutils.safe_file_id(file_id)
1214
assert ie.parent_id is None or \
1215
self[ie.parent_id].children[ie.name] == ie
1217
del self._byid[file_id]
1218
if ie.parent_id is not None:
1219
del self[ie.parent_id].children[ie.name]
1221
def __eq__(self, other):
1222
"""Compare two sets by comparing their contents.
1224
>>> i1 = Inventory()
1225
>>> i2 = Inventory()
1228
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1229
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1232
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1233
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1237
if not isinstance(other, Inventory):
1238
return NotImplemented
1240
return self._byid == other._byid
1242
def __ne__(self, other):
1243
return not self.__eq__(other)
1246
raise ValueError('not hashable')
1248
def _iter_file_id_parents(self, file_id):
1249
"""Yield the parents of file_id up to the root."""
1250
file_id = osutils.safe_file_id(file_id)
1251
while file_id is not None:
1253
ie = self._byid[file_id]
1255
raise errors.NoSuchId(tree=None, file_id=file_id)
1257
file_id = ie.parent_id
1259
def get_idpath(self, file_id):
1260
"""Return a list of file_ids for the path to an entry.
1262
The list contains one element for each directory followed by
1263
the id of the file itself. So the length of the returned list
1264
is equal to the depth of the file in the tree, counting the
1265
root directory as depth 1.
1267
file_id = osutils.safe_file_id(file_id)
1269
for parent in self._iter_file_id_parents(file_id):
1270
p.insert(0, parent.file_id)
1273
def id2path(self, file_id):
1274
"""Return as a string the path to file_id.
1277
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1278
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1279
>>> print i.id2path('foo-id')
1282
file_id = osutils.safe_file_id(file_id)
1283
# get all names, skipping root
1284
return '/'.join(reversed(
1285
[parent.name for parent in
1286
self._iter_file_id_parents(file_id)][:-1]))
1288
def path2id(self, name):
1289
"""Walk down through directories to return entry of last component.
1291
names may be either a list of path components, or a single
1292
string, in which case it is automatically split.
1294
This returns the entry of the last component in the path,
1295
which may be either a file or a directory.
1297
Returns None IFF the path is not found.
1299
if isinstance(name, basestring):
1300
name = osutils.splitpath(name)
1302
# mutter("lookup path %r" % name)
1309
children = getattr(parent, 'children', None)
1310
if children is None:
1313
assert cie.name == f
1314
assert cie.parent_id == parent.file_id
1317
# or raise an error?
1320
return parent.file_id
1322
def has_filename(self, names):
1323
return bool(self.path2id(names))
1325
def has_id(self, file_id):
1326
file_id = osutils.safe_file_id(file_id)
1327
return (file_id in self._byid)
1329
def remove_recursive_id(self, file_id):
1330
"""Remove file_id, and children, from the inventory.
1332
:param file_id: A file_id to remove.
1334
file_id = osutils.safe_file_id(file_id)
1335
to_find_delete = [self._byid[file_id]]
1337
while to_find_delete:
1338
ie = to_find_delete.pop()
1339
to_delete.append(ie.file_id)
1340
if ie.kind == 'directory':
1341
to_find_delete.extend(ie.children.values())
1342
for file_id in reversed(to_delete):
1344
del self._byid[file_id]
1345
if ie.parent_id is not None:
1346
del self[ie.parent_id].children[ie.name]
1350
def rename(self, file_id, new_parent_id, new_name):
1351
"""Move a file within the inventory.
1353
This can change either the name, or the parent, or both.
1355
This does not move the working file.
1357
file_id = osutils.safe_file_id(file_id)
1358
if not is_valid_name(new_name):
1359
raise BzrError("not an acceptable filename: %r" % new_name)
1361
new_parent = self._byid[new_parent_id]
1362
if new_name in new_parent.children:
1363
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1365
new_parent_idpath = self.get_idpath(new_parent_id)
1366
if file_id in new_parent_idpath:
1367
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1368
% (self.id2path(file_id), self.id2path(new_parent_id)))
1370
file_ie = self._byid[file_id]
1371
old_parent = self._byid[file_ie.parent_id]
1373
# TODO: Don't leave things messed up if this fails
1375
del old_parent.children[file_ie.name]
1376
new_parent.children[new_name] = file_ie
1378
file_ie.name = new_name
1379
file_ie.parent_id = new_parent_id
1381
def is_root(self, file_id):
1382
file_id = osutils.safe_file_id(file_id)
1383
return self.root is not None and file_id == self.root.file_id
1387
'directory': InventoryDirectory,
1388
'file': InventoryFile,
1389
'symlink': InventoryLink,
1390
'tree-reference': TreeReference
1393
def make_entry(kind, name, parent_id, file_id=None):
1394
"""Create an inventory entry.
1396
:param kind: the type of inventory entry to create.
1397
:param name: the basename of the entry.
1398
:param parent_id: the parent_id of the entry.
1399
:param file_id: the file_id to use. if None, one will be created.
1402
file_id = generate_ids.gen_file_id(name)
1404
file_id = osutils.safe_file_id(file_id)
1406
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1407
# keep them synchronised.
1408
# we dont import normalized_filename directly because we want to be
1409
# able to change the implementation at runtime for tests.
1410
norm_name, can_access = osutils.normalized_filename(name)
1411
if norm_name != name:
1415
# TODO: jam 20060701 This would probably be more useful
1416
# if the error was raised with the full path
1417
raise errors.InvalidNormalization(name)
1420
factory = entry_factory[kind]
1422
raise BzrError("unknown kind %r" % kind)
1423
return factory(file_id, name, parent_id)
1428
def is_valid_name(name):
1430
if _NAME_RE is None:
1431
_NAME_RE = re.compile(r'^[^/\\]+$')
1433
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
