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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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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.
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If a working directory is specified, the inventory is read
757
from there. If the file is specified, read from that. If not,
758
the inventory is created empty.
760
The inventory is created with a default root directory, with
763
if root_id is not None:
764
self._set_root(InventoryDirectory(root_id, u'', None))
768
self.revision_id = revision_id
771
return "<Inventory object at %x, contents=%r>" % (id(self), self._byid)
773
def apply_delta(self, delta):
774
"""Apply a delta to this inventory.
776
:param delta: A list of changes to apply. After all the changes are
777
applied the final inventory must be internally consistent, but it
778
is ok to supply changes which, if only half-applied would have an
779
invalid result - such as supplying two changes which rename two
780
files, 'A' and 'B' with each other : [('A', 'B', 'A-id', a_entry),
781
('B', 'A', 'B-id', b_entry)].
783
Each change is a tuple, of the form (old_path, new_path, file_id,
786
When new_path is None, the change indicates the removal of an entry
787
from the inventory and new_entry will be ignored (using None is
788
appropriate). If new_path is not None, then new_entry must be an
789
InventoryEntry instance, which will be incorporated into the
790
inventory (and replace any existing entry with the same file id).
792
When old_path is None, the change indicates the addition of
793
a new entry to the inventory.
795
When neither new_path nor old_path are None, the change is a
796
modification to an entry, such as a rename, reparent, kind change
799
The children attribute of new_entry is ignored. This is because
800
this method preserves children automatically across alterations to
801
the parent of the children, and cases where the parent id of a
802
child is changing require the child to be passed in as a separate
803
change regardless. E.g. in the recursive deletion of a directory -
804
the directory's children must be included in the delta, or the
805
final inventory will be invalid.
808
# Remove all affected items which were in the original inventory,
809
# starting with the longest paths, thus ensuring parents are examined
810
# after their children, which means that everything we examine has no
811
# modified children remaining by the time we examine it.
812
for old_path, file_id in sorted(((op, f) for op, np, f, e in delta
813
if op is not None), reverse=True):
814
if file_id not in self:
817
# Preserve unaltered children of file_id for later reinsertion.
818
file_id_children = getattr(self[file_id], 'children', {})
819
if len(file_id_children):
820
children[file_id] = file_id_children
821
# Remove file_id and the unaltered children. If file_id is not
822
# being deleted it will be reinserted back later.
823
self.remove_recursive_id(file_id)
824
# Insert all affected which should be in the new inventory, reattaching
825
# their children if they had any. This is done from shortest path to
826
# longest, ensuring that items which were modified and whose parents in
827
# the resulting inventory were also modified, are inserted after their
829
for new_path, new_entry in sorted((np, e) for op, np, f, e in
830
delta if np is not None):
831
if new_entry.kind == 'directory':
832
# Pop the child which to allow detection of children whose
833
# parents were deleted and which were not reattached to a new
835
new_entry.children = children.pop(new_entry.file_id, {})
838
# Get the parent id that was deleted
839
parent_id, children = children.popitem()
840
raise errors.InconsistentDelta("<deleted>", parent_id,
841
"The file id was deleted but its children were not deleted.")
843
def _set_root(self, ie):
845
self._byid = {self.root.file_id: self.root}
848
# TODO: jam 20051218 Should copy also copy the revision_id?
849
entries = self.iter_entries()
850
if self.root is None:
851
return Inventory(root_id=None)
852
other = Inventory(entries.next()[1].file_id)
853
# copy recursively so we know directories will be added before
854
# their children. There are more efficient ways than this...
855
for path, entry in entries:
856
other.add(entry.copy())
860
return iter(self._byid)
863
"""Returns number of entries."""
864
return len(self._byid)
866
def iter_entries(self, from_dir=None):
867
"""Return (path, entry) pairs, in order by name."""
869
if self.root is None:
873
elif isinstance(from_dir, basestring):
874
from_dir = self._byid[from_dir]
876
# unrolling the recursive called changed the time from
877
# 440ms/663ms (inline/total) to 116ms/116ms
878
children = from_dir.children.items()
880
children = collections.deque(children)
881
stack = [(u'', children)]
883
from_dir_relpath, children = stack[-1]
886
name, ie = children.popleft()
888
# we know that from_dir_relpath never ends in a slash
889
# and 'f' doesn't begin with one, we can do a string op, rather
890
# than the checks of pathjoin(), though this means that all paths
892
path = from_dir_relpath + '/' + name
896
if ie.kind != 'directory':
899
# But do this child first
900
new_children = ie.children.items()
902
new_children = collections.deque(new_children)
903
stack.append((path, new_children))
904
# Break out of inner loop, so that we start outer loop with child
907
# if we finished all children, pop it off the stack
910
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None,
911
yield_parents=False):
912
"""Iterate over the entries in a directory first order.
914
This returns all entries for a directory before returning
915
the entries for children of a directory. This is not
916
lexicographically sorted order, and is a hybrid between
917
depth-first and breadth-first.
919
:param yield_parents: If True, yield the parents from the root leading
920
down to specific_file_ids that have been requested. This has no
921
impact if specific_file_ids is None.
922
:return: This yields (path, entry) pairs
924
if specific_file_ids and not isinstance(specific_file_ids, set):
925
specific_file_ids = set(specific_file_ids)
926
# TODO? Perhaps this should return the from_dir so that the root is
927
# yielded? or maybe an option?
929
if self.root is None:
931
# Optimize a common case
932
if (not yield_parents and specific_file_ids is not None and
933
len(specific_file_ids) == 1):
934
file_id = list(specific_file_ids)[0]
936
yield self.id2path(file_id), self[file_id]
939
if (specific_file_ids is None or yield_parents or
940
self.root.file_id in specific_file_ids):
942
elif isinstance(from_dir, basestring):
943
from_dir = self._byid[from_dir]
945
if specific_file_ids is not None:
946
# TODO: jam 20070302 This could really be done as a loop rather
947
# than a bunch of recursive calls.
950
def add_ancestors(file_id):
951
if file_id not in byid:
953
parent_id = byid[file_id].parent_id
954
if parent_id is None:
956
if parent_id not in parents:
957
parents.add(parent_id)
958
add_ancestors(parent_id)
959
for file_id in specific_file_ids:
960
add_ancestors(file_id)
964
stack = [(u'', from_dir)]
966
cur_relpath, cur_dir = stack.pop()
969
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
971
child_relpath = cur_relpath + child_name
973
if (specific_file_ids is None or
974
child_ie.file_id in specific_file_ids or
975
(yield_parents and child_ie.file_id in parents)):
976
yield child_relpath, child_ie
978
if child_ie.kind == 'directory':
979
if parents is None or child_ie.file_id in parents:
980
child_dirs.append((child_relpath+'/', child_ie))
981
stack.extend(reversed(child_dirs))
983
def make_entry(self, kind, name, parent_id, file_id=None):
984
"""Simple thunk to bzrlib.inventory.make_entry."""
985
return make_entry(kind, name, parent_id, file_id)
988
"""Return list of (path, ie) for all entries except the root.
990
This may be faster than iter_entries.
993
def descend(dir_ie, dir_path):
994
kids = dir_ie.children.items()
996
for name, ie in kids:
997
child_path = osutils.pathjoin(dir_path, name)
998
accum.append((child_path, ie))
999
if ie.kind == 'directory':
1000
descend(ie, child_path)
1002
descend(self.root, u'')
1005
def directories(self):
1006
"""Return (path, entry) pairs for all directories, including the root.
1009
def descend(parent_ie, parent_path):
1010
accum.append((parent_path, parent_ie))
1012
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1015
for name, child_ie in kids:
1016
child_path = osutils.pathjoin(parent_path, name)
1017
descend(child_ie, child_path)
1018
descend(self.root, u'')
1021
def __contains__(self, file_id):
1022
"""True if this entry contains a file with given id.
1024
>>> inv = Inventory()
1025
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1026
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1032
return (file_id in self._byid)
1034
def __getitem__(self, file_id):
1035
"""Return the entry for given file_id.
1037
>>> inv = Inventory()
1038
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1039
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1040
>>> inv['123123'].name
1044
return self._byid[file_id]
1046
# really we're passing an inventory, not a tree...
1047
raise errors.NoSuchId(self, file_id)
1049
def get_file_kind(self, file_id):
1050
return self._byid[file_id].kind
1052
def get_child(self, parent_id, filename):
1053
return self[parent_id].children.get(filename)
1055
def _add_child(self, entry):
1056
"""Add an entry to the inventory, without adding it to its parent"""
1057
if entry.file_id in self._byid:
1058
raise BzrError("inventory already contains entry with id {%s}" %
1060
self._byid[entry.file_id] = entry
1061
for child in getattr(entry, 'children', {}).itervalues():
1062
self._add_child(child)
1065
def add(self, entry):
1066
"""Add entry to inventory.
1068
To add a file to a branch ready to be committed, use Branch.add,
1071
Returns the new entry object.
1073
if entry.file_id in self._byid:
1074
raise errors.DuplicateFileId(entry.file_id,
1075
self._byid[entry.file_id])
1077
if entry.parent_id is None:
1081
parent = self._byid[entry.parent_id]
1083
raise BzrError("parent_id {%s} not in inventory" %
1086
if entry.name in parent.children:
1087
raise BzrError("%s is already versioned" %
1088
osutils.pathjoin(self.id2path(parent.file_id),
1089
entry.name).encode('utf-8'))
1090
parent.children[entry.name] = entry
1091
return self._add_child(entry)
1093
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1094
"""Add entry from a path.
1096
The immediate parent must already be versioned.
1098
Returns the new entry object."""
1100
parts = osutils.splitpath(relpath)
1104
file_id = generate_ids.gen_root_id()
1105
self.root = InventoryDirectory(file_id, '', None)
1106
self._byid = {self.root.file_id: self.root}
1109
parent_path = parts[:-1]
1110
parent_id = self.path2id(parent_path)
1111
if parent_id is None:
1112
raise errors.NotVersionedError(path=parent_path)
1113
ie = make_entry(kind, parts[-1], parent_id, file_id)
1116
def __delitem__(self, file_id):
1117
"""Remove entry by id.
1119
>>> inv = Inventory()
1120
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1121
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1129
del self._byid[file_id]
1130
if ie.parent_id is not None:
1131
del self[ie.parent_id].children[ie.name]
1133
def __eq__(self, other):
1134
"""Compare two sets by comparing their contents.
1136
>>> i1 = Inventory()
1137
>>> i2 = Inventory()
1140
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1141
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1144
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1145
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1149
if not isinstance(other, Inventory):
1150
return NotImplemented
1152
return self._byid == other._byid
1154
def __ne__(self, other):
1155
return not self.__eq__(other)
1158
raise ValueError('not hashable')
1160
def _iter_file_id_parents(self, file_id):
1161
"""Yield the parents of file_id up to the root."""
1162
while file_id is not None:
1164
ie = self._byid[file_id]
1166
raise errors.NoSuchId(tree=None, file_id=file_id)
1168
file_id = ie.parent_id
1170
def get_idpath(self, file_id):
1171
"""Return a list of file_ids for the path to an entry.
1173
The list contains one element for each directory followed by
1174
the id of the file itself. So the length of the returned list
1175
is equal to the depth of the file in the tree, counting the
1176
root directory as depth 1.
1179
for parent in self._iter_file_id_parents(file_id):
1180
p.insert(0, parent.file_id)
1183
def id2path(self, file_id):
1184
"""Return as a string the path to file_id.
1187
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1188
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1189
>>> print i.id2path('foo-id')
1192
# get all names, skipping root
1193
return '/'.join(reversed(
1194
[parent.name for parent in
1195
self._iter_file_id_parents(file_id)][:-1]))
1197
def path2id(self, name):
1198
"""Walk down through directories to return entry of last component.
1200
names may be either a list of path components, or a single
1201
string, in which case it is automatically split.
1203
This returns the entry of the last component in the path,
1204
which may be either a file or a directory.
1206
Returns None IFF the path is not found.
1208
if isinstance(name, basestring):
1209
name = osutils.splitpath(name)
1211
# mutter("lookup path %r" % name)
1218
children = getattr(parent, 'children', None)
1219
if children is None:
1224
# or raise an error?
1227
return parent.file_id
1229
def has_filename(self, names):
1230
return bool(self.path2id(names))
1232
def has_id(self, file_id):
1233
return (file_id in self._byid)
1235
def remove_recursive_id(self, file_id):
1236
"""Remove file_id, and children, from the inventory.
1238
:param file_id: A file_id to remove.
1240
to_find_delete = [self._byid[file_id]]
1242
while to_find_delete:
1243
ie = to_find_delete.pop()
1244
to_delete.append(ie.file_id)
1245
if ie.kind == 'directory':
1246
to_find_delete.extend(ie.children.values())
1247
for file_id in reversed(to_delete):
1249
del self._byid[file_id]
1250
if ie.parent_id is not None:
1251
del self[ie.parent_id].children[ie.name]
1255
def rename(self, file_id, new_parent_id, new_name):
1256
"""Move a file within the inventory.
1258
This can change either the name, or the parent, or both.
1260
This does not move the working file.
1262
new_name = ensure_normalized_name(new_name)
1263
if not is_valid_name(new_name):
1264
raise BzrError("not an acceptable filename: %r" % new_name)
1266
new_parent = self._byid[new_parent_id]
1267
if new_name in new_parent.children:
1268
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1270
new_parent_idpath = self.get_idpath(new_parent_id)
1271
if file_id in new_parent_idpath:
1272
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1273
% (self.id2path(file_id), self.id2path(new_parent_id)))
1275
file_ie = self._byid[file_id]
1276
old_parent = self._byid[file_ie.parent_id]
1278
# TODO: Don't leave things messed up if this fails
1280
del old_parent.children[file_ie.name]
1281
new_parent.children[new_name] = file_ie
1283
file_ie.name = new_name
1284
file_ie.parent_id = new_parent_id
1286
def is_root(self, file_id):
1287
return self.root is not None and file_id == self.root.file_id
1291
'directory': InventoryDirectory,
1292
'file': InventoryFile,
1293
'symlink': InventoryLink,
1294
'tree-reference': TreeReference
1297
def make_entry(kind, name, parent_id, file_id=None):
1298
"""Create an inventory entry.
1300
:param kind: the type of inventory entry to create.
1301
:param name: the basename of the entry.
1302
:param parent_id: the parent_id of the entry.
1303
:param file_id: the file_id to use. if None, one will be created.
1306
file_id = generate_ids.gen_file_id(name)
1307
name = ensure_normalized_name(name)
1309
factory = entry_factory[kind]
1311
raise BzrError("unknown kind %r" % kind)
1312
return factory(file_id, name, parent_id)
1315
def ensure_normalized_name(name):
1318
:raises InvalidNormalization: When name is not normalized, and cannot be
1319
accessed on this platform by the normalized path.
1320
:return: The NFC normalised version of name.
1322
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1323
# keep them synchronised.
1324
# we dont import normalized_filename directly because we want to be
1325
# able to change the implementation at runtime for tests.
1326
norm_name, can_access = osutils.normalized_filename(name)
1327
if norm_name != name:
1331
# TODO: jam 20060701 This would probably be more useful
1332
# if the error was raised with the full path
1333
raise errors.InvalidNormalization(name)
1339
def is_valid_name(name):
1341
if _NAME_RE is None:
1342
_NAME_RE = re.compile(r'^[^/\\]+$')
1344
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
