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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.symbol_versioning import deprecated_in, deprecated_method
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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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>>> 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 between two entries of the same kind."""
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def parent_candidates(self, previous_inventories):
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"""Find possible per-file graph parents.
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This is currently defined by:
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- Select the last changed revision in the parent inventory.
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- Do deal with a short lived bug in bzr 0.8's development two entries
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that have the same last changed but different 'x' bit settings are
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# revision:ie mapping for each ie found in previous_inventories.
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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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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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# add this revision as a candidate.
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candidates[ie.revision] = ie
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@deprecated_method(deprecated_in((1, 6, 0)))
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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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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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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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@deprecated_method(deprecated_in((1, 6, 0)))
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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 __eq__(self, other):
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# For the case when objects are cached
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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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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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key = (self.file_id, self.revision)
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if key in checker.checked_texts:
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prev_sha = checker.checked_texts[key]
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if prev_sha != self.text_sha1:
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'mismatched sha1 on {%s} in {%s} (%s != %s) %r' %
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(self.file_id, tree_revision_id, prev_sha, self.text_sha1,
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checker.repeated_text_cnt += 1
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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 != tree._repository.texts.get_sha1s([key])[key]):
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raise BzrCheckError('text {%s} version {%s} wrong sha1' % key)
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checker.checked_texts[key] = 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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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 bzrlib.diff import DiffText
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from_file_id = self.file_id
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to_file_id = to_entry.file_id
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to_file_id, from_file_id = from_file_id, to_file_id
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tree, to_tree = to_tree, tree
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from_label, to_label = to_label, from_label
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differ = DiffText(tree, to_tree, output_to, 'utf-8', '', '',
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return differ.diff_text(from_file_id, to_file_id, from_label, to_label)
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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 _unchanged(self, previous_ie):
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"""See InventoryEntry._unchanged."""
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compatible = super(InventoryFile, self)._unchanged(previous_ie)
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if self.text_sha1 != previous_ie.text_sha1:
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# FIXME: 20050930 probe for the text size when getting sha1
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# in _read_tree_state
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self.text_size = previous_ie.text_size
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if self.executable != previous_ie.executable:
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class InventoryLink(InventoryEntry):
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"""A file in an inventory."""
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target', '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('symlink {%s} has text in revision {%s}'
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% (self.file_id, rev_id))
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if self.symlink_target is None:
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raise BzrCheckError('symlink {%s} has no target in revision {%s}'
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% (self.file_id, rev_id))
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other = InventoryLink(self.file_id, self.name, self.parent_id)
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other.symlink_target = self.symlink_target
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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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# FIXME: which _modified field should we use ? RBC 20051003
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text_modified = (self.symlink_target != old_entry.symlink_target)
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mutter(" symlink target changed")
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meta_modified = False
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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 bzrlib.diff import DiffSymlink
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old_target = self.symlink_target
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if to_entry is not None:
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new_target = to_entry.symlink_target
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new_target, old_target = old_target, new_target
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differ = DiffSymlink(old_tree, new_tree, output_to)
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return differ.diff_symlink(old_target, new_target)
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def __init__(self, file_id, name, parent_id):
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super(InventoryLink, self).__init__(file_id, name, parent_id)
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self.kind = 'symlink'
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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.SYMTYPE
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item.linkname = self.symlink_target
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def _put_on_disk(self, fullpath, tree):
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"""See InventoryEntry._put_on_disk."""
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os.symlink(self.symlink_target, fullpath)
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raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
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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.symlink_target = work_tree.get_symlink_target(self.file_id)
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def _forget_tree_state(self):
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self.symlink_target = None
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def _unchanged(self, previous_ie):
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"""See InventoryEntry._unchanged."""
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compatible = super(InventoryLink, self)._unchanged(previous_ie)
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if self.symlink_target != previous_ie.symlink_target:
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class TreeReference(InventoryEntry):
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kind = 'tree-reference'
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def __init__(self, file_id, name, parent_id, revision=None,
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reference_revision=None):
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InventoryEntry.__init__(self, file_id, name, parent_id)
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self.revision = revision
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self.reference_revision = reference_revision
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return TreeReference(self.file_id, self.name, self.parent_id,
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self.revision, self.reference_revision)
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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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self.reference_revision = work_tree.get_reference_revision(
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def _forget_tree_state(self):
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self.reference_revision = None
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def _unchanged(self, previous_ie):
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"""See InventoryEntry._unchanged."""
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compatible = super(TreeReference, self)._unchanged(previous_ie)
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if self.reference_revision != previous_ie.reference_revision:
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class Inventory(object):
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"""Inventory of versioned files in a tree.
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This describes which file_id is present at each point in the tree,
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and possibly the SHA-1 or other information about the file.
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Entries can be looked up either by path or by file_id.
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The inventory represents a typical unix file tree, with
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directories containing files and subdirectories. We never store
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the full path to a file, because renaming a directory implicitly
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moves all of its contents. This class internally maintains a
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lookup tree that allows the children under a directory to be
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InventoryEntry objects must not be modified after they are
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inserted, other than through the Inventory API.
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>>> inv = Inventory()
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>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
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InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
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>>> inv['123-123'].name
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May be treated as an iterator or set to look up file ids:
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>>> bool(inv.path2id('hello.c'))
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May also look up by name:
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>>> [x[0] for x in inv.iter_entries()]
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>>> inv = Inventory('TREE_ROOT-12345678-12345678')
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>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
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Traceback (most recent call last):
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BzrError: parent_id {TREE_ROOT} not in inventory
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>>> inv.add(InventoryFile('123-123', 'hello.c', 'TREE_ROOT-12345678-12345678'))
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InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678', sha1=None, len=None)
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def __init__(self, root_id=ROOT_ID, revision_id=None):
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"""Create or read an inventory.
759
If a working directory is specified, the inventory is read
760
from there. If the file is specified, read from that. If not,
761
the inventory is created empty.
763
The inventory is created with a default root directory, with
766
if root_id is not None:
767
self._set_root(InventoryDirectory(root_id, u'', None))
771
self.revision_id = revision_id
774
return "<Inventory object at %x, contents=%r>" % (id(self), self._byid)
776
def apply_delta(self, delta):
777
"""Apply a delta to this inventory.
779
:param delta: A list of changes to apply. After all the changes are
780
applied the final inventory must be internally consistent, but it
781
is ok to supply changes which, if only half-applied would have an
782
invalid result - such as supplying two changes which rename two
783
files, 'A' and 'B' with each other : [('A', 'B', 'A-id', a_entry),
784
('B', 'A', 'B-id', b_entry)].
786
Each change is a tuple, of the form (old_path, new_path, file_id,
789
When new_path is None, the change indicates the removal of an entry
790
from the inventory and new_entry will be ignored (using None is
791
appropriate). If new_path is not None, then new_entry must be an
792
InventoryEntry instance, which will be incorporated into the
793
inventory (and replace any existing entry with the same file id).
795
When old_path is None, the change indicates the addition of
796
a new entry to the inventory.
798
When neither new_path nor old_path are None, the change is a
799
modification to an entry, such as a rename, reparent, kind change
802
The children attribute of new_entry is ignored. This is because
803
this method preserves children automatically across alterations to
804
the parent of the children, and cases where the parent id of a
805
child is changing require the child to be passed in as a separate
806
change regardless. E.g. in the recursive deletion of a directory -
807
the directory's children must be included in the delta, or the
808
final inventory will be invalid.
810
Note that a file_id must only appear once within a given delta.
811
An AssertionError is raised otherwise.
813
# Check that the delta is legal. It would be nice if this could be
814
# done within the loops below but it's safer to validate the delta
815
# before starting to mutate the inventory.
816
unique_file_ids = set([f for _, _, f, _ in delta])
817
if len(unique_file_ids) != len(delta):
818
raise AssertionError("a file-id appears multiple times in %r"
823
# Remove all affected items which were in the original inventory,
824
# starting with the longest paths, thus ensuring parents are examined
825
# after their children, which means that everything we examine has no
826
# modified children remaining by the time we examine it.
827
for old_path, file_id in sorted(((op, f) for op, np, f, e in delta
828
if op is not None), reverse=True):
829
if file_id not in self:
832
# Preserve unaltered children of file_id for later reinsertion.
833
file_id_children = getattr(self[file_id], 'children', {})
834
if len(file_id_children):
835
children[file_id] = file_id_children
836
# Remove file_id and the unaltered children. If file_id is not
837
# being deleted it will be reinserted back later.
838
self.remove_recursive_id(file_id)
839
# Insert all affected which should be in the new inventory, reattaching
840
# their children if they had any. This is done from shortest path to
841
# longest, ensuring that items which were modified and whose parents in
842
# the resulting inventory were also modified, are inserted after their
844
for new_path, new_entry in sorted((np, e) for op, np, f, e in
845
delta if np is not None):
846
if new_entry.kind == 'directory':
847
# Pop the child which to allow detection of children whose
848
# parents were deleted and which were not reattached to a new
850
new_entry.children = children.pop(new_entry.file_id, {})
853
# Get the parent id that was deleted
854
parent_id, children = children.popitem()
855
raise errors.InconsistentDelta("<deleted>", parent_id,
856
"The file id was deleted but its children were not deleted.")
858
def _set_root(self, ie):
860
self._byid = {self.root.file_id: self.root}
863
# TODO: jam 20051218 Should copy also copy the revision_id?
864
entries = self.iter_entries()
865
if self.root is None:
866
return Inventory(root_id=None)
867
other = Inventory(entries.next()[1].file_id)
868
other.root.revision = self.root.revision
869
# copy recursively so we know directories will be added before
870
# their children. There are more efficient ways than this...
871
for path, entry in entries:
872
other.add(entry.copy())
876
return iter(self._byid)
879
"""Returns number of entries."""
880
return len(self._byid)
882
def iter_entries(self, from_dir=None):
883
"""Return (path, entry) pairs, in order by name."""
885
if self.root is None:
889
elif isinstance(from_dir, basestring):
890
from_dir = self._byid[from_dir]
892
# unrolling the recursive called changed the time from
893
# 440ms/663ms (inline/total) to 116ms/116ms
894
children = from_dir.children.items()
896
children = collections.deque(children)
897
stack = [(u'', children)]
899
from_dir_relpath, children = stack[-1]
902
name, ie = children.popleft()
904
# we know that from_dir_relpath never ends in a slash
905
# and 'f' doesn't begin with one, we can do a string op, rather
906
# than the checks of pathjoin(), though this means that all paths
908
path = from_dir_relpath + '/' + name
912
if ie.kind != 'directory':
915
# But do this child first
916
new_children = ie.children.items()
918
new_children = collections.deque(new_children)
919
stack.append((path, new_children))
920
# Break out of inner loop, so that we start outer loop with child
923
# if we finished all children, pop it off the stack
926
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None,
927
yield_parents=False):
928
"""Iterate over the entries in a directory first order.
930
This returns all entries for a directory before returning
931
the entries for children of a directory. This is not
932
lexicographically sorted order, and is a hybrid between
933
depth-first and breadth-first.
935
:param yield_parents: If True, yield the parents from the root leading
936
down to specific_file_ids that have been requested. This has no
937
impact if specific_file_ids is None.
938
:return: This yields (path, entry) pairs
940
if specific_file_ids and not isinstance(specific_file_ids, set):
941
specific_file_ids = set(specific_file_ids)
942
# TODO? Perhaps this should return the from_dir so that the root is
943
# yielded? or maybe an option?
945
if self.root is None:
947
# Optimize a common case
948
if (not yield_parents and specific_file_ids is not None and
949
len(specific_file_ids) == 1):
950
file_id = list(specific_file_ids)[0]
952
yield self.id2path(file_id), self[file_id]
955
if (specific_file_ids is None or yield_parents or
956
self.root.file_id in specific_file_ids):
958
elif isinstance(from_dir, basestring):
959
from_dir = self._byid[from_dir]
961
if specific_file_ids is not None:
962
# TODO: jam 20070302 This could really be done as a loop rather
963
# than a bunch of recursive calls.
966
def add_ancestors(file_id):
967
if file_id not in byid:
969
parent_id = byid[file_id].parent_id
970
if parent_id is None:
972
if parent_id not in parents:
973
parents.add(parent_id)
974
add_ancestors(parent_id)
975
for file_id in specific_file_ids:
976
add_ancestors(file_id)
980
stack = [(u'', from_dir)]
982
cur_relpath, cur_dir = stack.pop()
985
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
987
child_relpath = cur_relpath + child_name
989
if (specific_file_ids is None or
990
child_ie.file_id in specific_file_ids or
991
(yield_parents and child_ie.file_id in parents)):
992
yield child_relpath, child_ie
994
if child_ie.kind == 'directory':
995
if parents is None or child_ie.file_id in parents:
996
child_dirs.append((child_relpath+'/', child_ie))
997
stack.extend(reversed(child_dirs))
999
def make_entry(self, kind, name, parent_id, file_id=None):
1000
"""Simple thunk to bzrlib.inventory.make_entry."""
1001
return make_entry(kind, name, parent_id, file_id)
1004
"""Return list of (path, ie) for all entries except the root.
1006
This may be faster than iter_entries.
1009
def descend(dir_ie, dir_path):
1010
kids = dir_ie.children.items()
1012
for name, ie in kids:
1013
child_path = osutils.pathjoin(dir_path, name)
1014
accum.append((child_path, ie))
1015
if ie.kind == 'directory':
1016
descend(ie, child_path)
1018
descend(self.root, u'')
1021
def directories(self):
1022
"""Return (path, entry) pairs for all directories, including the root.
1025
def descend(parent_ie, parent_path):
1026
accum.append((parent_path, parent_ie))
1028
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1031
for name, child_ie in kids:
1032
child_path = osutils.pathjoin(parent_path, name)
1033
descend(child_ie, child_path)
1034
descend(self.root, u'')
1037
def __contains__(self, file_id):
1038
"""True if this entry contains a file with given id.
1040
>>> inv = Inventory()
1041
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1042
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1048
return (file_id in self._byid)
1050
def __getitem__(self, file_id):
1051
"""Return the entry for given file_id.
1053
>>> inv = Inventory()
1054
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1055
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1056
>>> inv['123123'].name
1060
return self._byid[file_id]
1062
# really we're passing an inventory, not a tree...
1063
raise errors.NoSuchId(self, file_id)
1065
def get_file_kind(self, file_id):
1066
return self._byid[file_id].kind
1068
def get_child(self, parent_id, filename):
1069
return self[parent_id].children.get(filename)
1071
def _add_child(self, entry):
1072
"""Add an entry to the inventory, without adding it to its parent"""
1073
if entry.file_id in self._byid:
1074
raise BzrError("inventory already contains entry with id {%s}" %
1076
self._byid[entry.file_id] = entry
1077
for child in getattr(entry, 'children', {}).itervalues():
1078
self._add_child(child)
1081
def add(self, entry):
1082
"""Add entry to inventory.
1084
To add a file to a branch ready to be committed, use Branch.add,
1087
Returns the new entry object.
1089
if entry.file_id in self._byid:
1090
raise errors.DuplicateFileId(entry.file_id,
1091
self._byid[entry.file_id])
1093
if entry.parent_id is None:
1097
parent = self._byid[entry.parent_id]
1099
raise BzrError("parent_id {%s} not in inventory" %
1102
if entry.name in parent.children:
1103
raise BzrError("%s is already versioned" %
1104
osutils.pathjoin(self.id2path(parent.file_id),
1105
entry.name).encode('utf-8'))
1106
parent.children[entry.name] = entry
1107
return self._add_child(entry)
1109
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1110
"""Add entry from a path.
1112
The immediate parent must already be versioned.
1114
Returns the new entry object."""
1116
parts = osutils.splitpath(relpath)
1120
file_id = generate_ids.gen_root_id()
1121
self.root = InventoryDirectory(file_id, '', None)
1122
self._byid = {self.root.file_id: self.root}
1125
parent_path = parts[:-1]
1126
parent_id = self.path2id(parent_path)
1127
if parent_id is None:
1128
raise errors.NotVersionedError(path=parent_path)
1129
ie = make_entry(kind, parts[-1], parent_id, file_id)
1132
def __delitem__(self, file_id):
1133
"""Remove entry by id.
1135
>>> inv = Inventory()
1136
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1137
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1145
del self._byid[file_id]
1146
if ie.parent_id is not None:
1147
del self[ie.parent_id].children[ie.name]
1149
def __eq__(self, other):
1150
"""Compare two sets by comparing their contents.
1152
>>> i1 = Inventory()
1153
>>> i2 = Inventory()
1156
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1157
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1160
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1161
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1165
if not isinstance(other, Inventory):
1166
return NotImplemented
1168
return self._byid == other._byid
1170
def __ne__(self, other):
1171
return not self.__eq__(other)
1174
raise ValueError('not hashable')
1176
def _iter_file_id_parents(self, file_id):
1177
"""Yield the parents of file_id up to the root."""
1178
while file_id is not None:
1180
ie = self._byid[file_id]
1182
raise errors.NoSuchId(tree=None, file_id=file_id)
1184
file_id = ie.parent_id
1186
def get_idpath(self, file_id):
1187
"""Return a list of file_ids for the path to an entry.
1189
The list contains one element for each directory followed by
1190
the id of the file itself. So the length of the returned list
1191
is equal to the depth of the file in the tree, counting the
1192
root directory as depth 1.
1195
for parent in self._iter_file_id_parents(file_id):
1196
p.insert(0, parent.file_id)
1199
def id2path(self, file_id):
1200
"""Return as a string the path to file_id.
1203
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1204
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1205
>>> print i.id2path('foo-id')
1208
# get all names, skipping root
1209
return '/'.join(reversed(
1210
[parent.name for parent in
1211
self._iter_file_id_parents(file_id)][:-1]))
1213
def path2id(self, name):
1214
"""Walk down through directories to return entry of last component.
1216
names may be either a list of path components, or a single
1217
string, in which case it is automatically split.
1219
This returns the entry of the last component in the path,
1220
which may be either a file or a directory.
1222
Returns None IFF the path is not found.
1224
if isinstance(name, basestring):
1225
name = osutils.splitpath(name)
1227
# mutter("lookup path %r" % name)
1234
children = getattr(parent, 'children', None)
1235
if children is None:
1240
# or raise an error?
1243
return parent.file_id
1245
def has_filename(self, names):
1246
return bool(self.path2id(names))
1248
def has_id(self, file_id):
1249
return (file_id in self._byid)
1251
def _make_delta(self, old):
1252
"""Make an inventory delta from two inventories."""
1253
old_getter = getattr(old, '_byid', old)
1254
new_getter = self._byid
1255
old_ids = set(old_getter)
1256
new_ids = set(new_getter)
1257
adds = new_ids - old_ids
1258
deletes = old_ids - new_ids
1259
if not adds and not deletes:
1262
common = old_ids.intersection(new_ids)
1264
for file_id in deletes:
1265
delta.append((old.id2path(file_id), None, file_id, None))
1266
for file_id in adds:
1267
delta.append((None, self.id2path(file_id), file_id, self[file_id]))
1268
for file_id in common:
1269
new_ie = new_getter[file_id]
1270
old_ie = old_getter[file_id]
1271
# If xml_serializer returns the cached InventoryEntries (rather
1272
# than always doing .copy()), inlining the 'is' check saves 2.7M
1273
# calls to __eq__. Under lsprof this saves 20s => 6s.
1274
# It is a minor improvement without lsprof.
1275
if old_ie is new_ie or old_ie == new_ie:
1278
delta.append((old.id2path(file_id), self.id2path(file_id),
1282
def remove_recursive_id(self, file_id):
1283
"""Remove file_id, and children, from the inventory.
1285
:param file_id: A file_id to remove.
1287
to_find_delete = [self._byid[file_id]]
1289
while to_find_delete:
1290
ie = to_find_delete.pop()
1291
to_delete.append(ie.file_id)
1292
if ie.kind == 'directory':
1293
to_find_delete.extend(ie.children.values())
1294
for file_id in reversed(to_delete):
1296
del self._byid[file_id]
1297
if ie.parent_id is not None:
1298
del self[ie.parent_id].children[ie.name]
1302
def rename(self, file_id, new_parent_id, new_name):
1303
"""Move a file within the inventory.
1305
This can change either the name, or the parent, or both.
1307
This does not move the working file.
1309
new_name = ensure_normalized_name(new_name)
1310
if not is_valid_name(new_name):
1311
raise BzrError("not an acceptable filename: %r" % new_name)
1313
new_parent = self._byid[new_parent_id]
1314
if new_name in new_parent.children:
1315
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1317
new_parent_idpath = self.get_idpath(new_parent_id)
1318
if file_id in new_parent_idpath:
1319
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1320
% (self.id2path(file_id), self.id2path(new_parent_id)))
1322
file_ie = self._byid[file_id]
1323
old_parent = self._byid[file_ie.parent_id]
1325
# TODO: Don't leave things messed up if this fails
1327
del old_parent.children[file_ie.name]
1328
new_parent.children[new_name] = file_ie
1330
file_ie.name = new_name
1331
file_ie.parent_id = new_parent_id
1333
def is_root(self, file_id):
1334
return self.root is not None and file_id == self.root.file_id
1338
'directory': InventoryDirectory,
1339
'file': InventoryFile,
1340
'symlink': InventoryLink,
1341
'tree-reference': TreeReference
1344
def make_entry(kind, name, parent_id, file_id=None):
1345
"""Create an inventory entry.
1347
:param kind: the type of inventory entry to create.
1348
:param name: the basename of the entry.
1349
:param parent_id: the parent_id of the entry.
1350
:param file_id: the file_id to use. if None, one will be created.
1353
file_id = generate_ids.gen_file_id(name)
1354
name = ensure_normalized_name(name)
1356
factory = entry_factory[kind]
1358
raise BzrError("unknown kind %r" % kind)
1359
return factory(file_id, name, parent_id)
1362
def ensure_normalized_name(name):
1365
:raises InvalidNormalization: When name is not normalized, and cannot be
1366
accessed on this platform by the normalized path.
1367
:return: The NFC normalised version of name.
1369
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1370
# keep them synchronised.
1371
# we dont import normalized_filename directly because we want to be
1372
# able to change the implementation at runtime for tests.
1373
norm_name, can_access = osutils.normalized_filename(name)
1374
if norm_name != name:
1378
# TODO: jam 20060701 This would probably be more useful
1379
# if the error was raised with the full path
1380
raise errors.InvalidNormalization(name)
1386
def is_valid_name(name):
1388
if _NAME_RE is None:
1389
_NAME_RE = re.compile(r'^[^/\\]+$')
1391
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
