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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_method, zero_ninetyone
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from bzrlib.trace import mutter
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class InventoryEntry(object):
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"""Description of a versioned file.
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An InventoryEntry has the following fields, which are also
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present in the XML inventory-entry element:
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(within the parent directory)
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file_id of the parent directory, or ROOT_ID
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the revision_id in which this variation of this file was
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Indicates that this file should be executable on systems
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sha-1 of the text of the file
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size in bytes of the text of the file
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(reading a version 4 tree created a text_id field.)
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>>> i.add(InventoryDirectory('123', 'src', ROOT_ID))
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InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None)
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>>> i.add(InventoryFile('2323', 'hello.c', parent_id='123'))
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InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None)
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>>> shouldbe = {0: '', 1: 'src', 2: 'src/hello.c'}
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>>> for ix, j in enumerate(i.iter_entries()):
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... print (j[0] == shouldbe[ix], j[1])
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(True, InventoryDirectory('TREE_ROOT', u'', parent_id=None, revision=None))
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(True, InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None))
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(True, InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None))
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>>> i.add(InventoryFile('2324', 'bye.c', '123'))
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InventoryFile('2324', 'bye.c', parent_id='123', sha1=None, len=None)
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>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
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InventoryDirectory('2325', 'wibble', parent_id='123', revision=None)
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>>> i.path2id('src/wibble')
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>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
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InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
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InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
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>>> for path, entry in i.iter_entries():
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... assert i.path2id(path)
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>>> i.id2path('2326')
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'src/wibble/wibble.c'
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# Constants returned by describe_change()
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# TODO: These should probably move to some kind of FileChangeDescription
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# class; that's like what's inside a TreeDelta but we want to be able to
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# generate them just for one file at a time.
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MODIFIED_AND_RENAMED = 'modified and renamed'
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def detect_changes(self, old_entry):
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"""Return a (text_modified, meta_modified) from this to old_entry.
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_read_tree_state must have been called on self and old_entry prior to
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calling detect_changes.
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def diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""Perform a diff from this to to_entry.
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text_diff will be used for textual difference calculation.
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This is a template method, override _diff in child classes.
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self._read_tree_state(tree.id2path(self.file_id), tree)
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# cannot diff from one kind to another - you must do a removal
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# and an addif they do not match.
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assert self.kind == to_entry.kind
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to_entry._read_tree_state(to_tree.id2path(to_entry.file_id),
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self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
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def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""Perform a diff between two entries of the same kind."""
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def 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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assert ie.file_id == self.file_id
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if ie.revision in candidates:
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# same revision value in two different inventories:
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# correct possible inconsistencies:
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# * there was a bug in revision updates with 'x' bit
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if candidates[ie.revision].executable != ie.executable:
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candidates[ie.revision].executable = False
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ie.executable = False
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except AttributeError:
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# must now be the same.
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assert candidates[ie.revision] == ie
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# add this revision as a candidate.
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candidates[ie.revision] = ie
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@deprecated_method(zero_ninetyone)
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def find_previous_heads(self, previous_inventories,
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versioned_file_store,
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"""Return the revisions and entries that directly precede this.
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Returned as a map from revision to inventory entry.
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This is a map containing the file revisions in all parents
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for which the file exists, and its revision is not a parent of
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any other. If the file is new, the set will be empty.
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:param versioned_file_store: A store where ancestry data on this
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file id can be queried.
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:param transaction: The transaction that queries to the versioned
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file store should be completed under.
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:param entry_vf: The entry versioned file, if its already available.
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candidates = self.parent_candidates(previous_inventories)
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# revision:ie mapping with one revision for each head.
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# common case optimisation
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if len(candidates) == 1:
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# if there is only one candidate revision found
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# then we can avoid opening the versioned file to access ancestry:
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# there cannot be any ancestors to eliminate when there is
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# only one revision available.
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# --- what follows is now encapsulated in repository.get_graph.heads(),
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# but that is not accessible from here as we have no repository
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# pointer. Note that the repository.get_graph.heads() call can return
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# different results *at the moment* because of the kind-changing check
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# we have in parent_candidates().
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# eliminate ancestors amongst the available candidates:
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# heads are those that are not an ancestor of any other candidate
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# - this provides convergence at a per-file level.
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def get_ancestors(weave, entry):
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return set(weave.get_ancestry(entry.revision, topo_sorted=False))
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# revision: ancestor list for each head
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for ie in candidates.values():
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# may be an ancestor of a known head:
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already_present = 0 != len(
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[head for head in heads
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if ie.revision in head_ancestors[head]])
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# an ancestor of an analyzed candidate.
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# not an ancestor of a known head:
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# load the versioned file for this file id if needed
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entry_vf = versioned_file_store.get_weave_or_empty(
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self.file_id, transaction)
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ancestors = get_ancestors(entry_vf, ie)
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# may knock something else out:
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check_heads = list(heads.keys())
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for head in check_heads:
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if head in ancestors:
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# this previously discovered 'head' is not
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# really a head - its an ancestor of the newly
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head_ancestors[ie.revision] = ancestors
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heads[ie.revision] = ie
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def get_tar_item(self, root, dp, now, tree):
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"""Get a tarfile item and a file stream for its content."""
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item = tarfile.TarInfo(osutils.pathjoin(root, dp).encode('utf8'))
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# TODO: would be cool to actually set it to the timestamp of the
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# revision it was last changed
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fileobj = self._put_in_tar(item, tree)
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"""Return true if the object this entry represents has textual data.
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Note that textual data includes binary content.
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Also note that all entries get weave files created for them.
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This attribute is primarily used when upgrading from old trees that
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did not have the weave index for all inventory entries.
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def __init__(self, file_id, name, parent_id, text_id=None):
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"""Create an InventoryEntry
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The filename must be a single component, relative to the
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parent directory; it cannot be a whole path or relative name.
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>>> e = InventoryFile('123', 'hello.c', ROOT_ID)
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>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
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Traceback (most recent call last):
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InvalidEntryName: Invalid entry name: src/hello.c
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assert isinstance(name, basestring), name
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if '/' in name or '\\' in name:
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raise errors.InvalidEntryName(name=name)
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self.executable = False
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self.text_sha1 = None
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self.text_size = None
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self.file_id = file_id
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assert isinstance(file_id, (str, None.__class__)), \
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'bad type %r for %r' % (type(file_id), file_id)
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self.text_id = text_id
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self.parent_id = parent_id
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self.symlink_target = None
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self.reference_revision = None
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def kind_character(self):
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"""Return a short kind indicator useful for appending to names."""
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raise BzrError('unknown kind %r' % self.kind)
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known_kinds = ('file', 'directory', 'symlink')
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def _put_in_tar(self, item, tree):
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"""populate item for stashing in a tar, and return the content stream.
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If no content is available, return None.
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raise BzrError("don't know how to export {%s} of kind %r" %
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(self.file_id, self.kind))
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def put_on_disk(self, dest, dp, tree):
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"""Create a representation of self on disk in the prefix dest.
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This is a template method - implement _put_on_disk in subclasses.
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fullpath = osutils.pathjoin(dest, dp)
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self._put_on_disk(fullpath, tree)
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# mutter(" export {%s} kind %s to %s", self.file_id,
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# self.kind, fullpath)
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def _put_on_disk(self, fullpath, tree):
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"""Put this entry onto disk at fullpath, from tree tree."""
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raise BzrError("don't know how to export {%s} of kind %r" % (self.file_id, self.kind))
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def sorted_children(self):
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return sorted(self.children.items())
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def versionable_kind(kind):
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return (kind in ('file', 'directory', 'symlink', 'tree-reference'))
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def check(self, checker, rev_id, inv, tree):
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"""Check this inventory entry is intact.
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This is a template method, override _check for kind specific
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:param checker: Check object providing context for the checks;
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can be used to find out what parts of the repository have already
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:param rev_id: Revision id from which this InventoryEntry was loaded.
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Not necessarily the last-changed revision for this file.
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:param inv: Inventory from which the entry was loaded.
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:param tree: RevisionTree for this entry.
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if self.parent_id is not None:
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if not inv.has_id(self.parent_id):
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raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
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% (self.parent_id, rev_id))
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self._check(checker, rev_id, tree)
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def _check(self, checker, rev_id, tree):
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"""Check this inventory entry for kind specific errors."""
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raise BzrCheckError('unknown entry kind %r in revision {%s}' %
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"""Clone this inventory entry."""
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raise NotImplementedError
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def describe_change(old_entry, new_entry):
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"""Describe the change between old_entry and this.
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This smells of being an InterInventoryEntry situation, but as its
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the first one, we're making it a static method for now.
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An entry with a different parent, or different name is considered
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to be renamed. Reparenting is an internal detail.
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Note that renaming the parent does not trigger a rename for the
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# TODO: Perhaps return an object rather than just a string
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if old_entry is new_entry:
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# also the case of both being None
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elif old_entry is None:
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elif new_entry is None:
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if old_entry.kind != new_entry.kind:
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text_modified, meta_modified = new_entry.detect_changes(old_entry)
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if text_modified or meta_modified:
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# TODO 20060511 (mbp, rbc) factor out 'detect_rename' here.
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if old_entry.parent_id != new_entry.parent_id:
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elif old_entry.name != new_entry.name:
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if renamed and not modified:
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return InventoryEntry.RENAMED
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if modified and not renamed:
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if modified and renamed:
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return InventoryEntry.MODIFIED_AND_RENAMED
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return ("%s(%r, %r, parent_id=%r, revision=%r)"
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% (self.__class__.__name__,
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def snapshot(self, revision, path, previous_entries,
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work_tree, commit_builder):
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"""Make a snapshot of this entry which may or may not have changed.
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This means that all its fields are populated, that it has its
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text stored in the text store or weave.
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:return: True if anything was recorded
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# cannot be unchanged unless there is only one parent file rev.
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self._read_tree_state(path, work_tree)
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if len(previous_entries) == 1:
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parent_ie = previous_entries.values()[0]
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if self._unchanged(parent_ie):
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self.revision = parent_ie.revision
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self.revision = revision
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return self._snapshot_text(previous_entries, work_tree, commit_builder)
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def _snapshot_text(self, file_parents, work_tree, commit_builder):
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"""Record the 'text' of this entry, whatever form that takes.
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:return: True if anything was recorded
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raise NotImplementedError(self._snapshot_text)
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def __eq__(self, other):
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if not isinstance(other, InventoryEntry):
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return NotImplemented
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return ((self.file_id == other.file_id)
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and (self.name == other.name)
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and (other.symlink_target == self.symlink_target)
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and (self.text_sha1 == other.text_sha1)
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and (self.text_size == other.text_size)
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and (self.text_id == other.text_id)
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and (self.parent_id == other.parent_id)
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and (self.kind == other.kind)
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and (self.revision == other.revision)
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and (self.executable == other.executable)
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and (self.reference_revision == other.reference_revision)
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def __ne__(self, other):
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return not (self == other)
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raise ValueError('not hashable')
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def _unchanged(self, previous_ie):
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"""Has this entry changed relative to previous_ie.
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This method should be overridden in child classes.
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# different inv parent
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if previous_ie.parent_id != self.parent_id:
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elif previous_ie.name != self.name:
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elif previous_ie.kind != self.kind:
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def _read_tree_state(self, path, work_tree):
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"""Populate fields in the inventory entry from the given tree.
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Note that this should be modified to be a noop on virtual trees
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as all entries created there are prepopulated.
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# TODO: Rather than running this manually, we should check the
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# working sha1 and other expensive properties when they're
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# first requested, or preload them if they're already known
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pass # nothing to do by default
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def _forget_tree_state(self):
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class RootEntry(InventoryEntry):
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target', 'reference_revision']
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def _check(self, checker, rev_id, tree):
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"""See InventoryEntry._check"""
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def __init__(self, file_id):
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self.file_id = file_id
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self.kind = 'directory'
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self.parent_id = None
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symbol_versioning.warn('RootEntry is deprecated as of bzr 0.10.'
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' Please use InventoryDirectory instead.',
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DeprecationWarning, stacklevel=2)
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def __eq__(self, other):
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if not isinstance(other, RootEntry):
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return NotImplemented
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return (self.file_id == other.file_id) \
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and (self.children == other.children)
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class InventoryDirectory(InventoryEntry):
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"""A directory in an inventory."""
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target', 'reference_revision']
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def _check(self, checker, rev_id, tree):
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"""See InventoryEntry._check"""
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if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
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raise BzrCheckError('directory {%s} has text in revision {%s}'
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% (self.file_id, rev_id))
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other = InventoryDirectory(self.file_id, self.name, self.parent_id)
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other.revision = self.revision
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# note that children are *not* copied; they're pulled across when
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def __init__(self, file_id, name, parent_id):
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super(InventoryDirectory, self).__init__(file_id, name, parent_id)
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self.kind = 'directory'
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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def _put_in_tar(self, item, tree):
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"""See InventoryEntry._put_in_tar."""
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item.type = tarfile.DIRTYPE
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def _put_on_disk(self, fullpath, tree):
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"""See InventoryEntry._put_on_disk."""
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def _snapshot_text(self, file_parents, work_tree, commit_builder):
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"""See InventoryEntry._snapshot_text."""
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commit_builder.modified_directory(self.file_id, file_parents)
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class InventoryFile(InventoryEntry):
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"""A file in an inventory."""
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__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
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'text_id', 'parent_id', 'children', 'executable',
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'revision', 'symlink_target', 'reference_revision']
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def _check(self, checker, tree_revision_id, tree):
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"""See InventoryEntry._check"""
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t = (self.file_id, self.revision)
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if t in checker.checked_texts:
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prev_sha = checker.checked_texts[t]
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if prev_sha != self.text_sha1:
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raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
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(self.file_id, tree_revision_id))
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checker.repeated_text_cnt += 1
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if self.file_id not in checker.checked_weaves:
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mutter('check weave {%s}', self.file_id)
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w = tree._get_weave(self.file_id)
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# Not passing a progress bar, because it creates a new
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# progress, which overwrites the current progress,
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# and doesn't look nice
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checker.checked_weaves[self.file_id] = True
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w = tree._get_weave(self.file_id)
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mutter('check version {%s} of {%s}', tree_revision_id, self.file_id)
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checker.checked_text_cnt += 1
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# We can't check the length, because Weave doesn't store that
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# information, and the whole point of looking at the weave's
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# sha1sum is that we don't have to extract the text.
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if self.text_sha1 != w.get_sha1(self.revision):
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raise BzrCheckError('text {%s} version {%s} wrong sha1'
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% (self.file_id, self.revision))
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checker.checked_texts[t] = self.text_sha1
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other = InventoryFile(self.file_id, self.name, self.parent_id)
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other.executable = self.executable
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other.text_id = self.text_id
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other.text_sha1 = self.text_sha1
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other.text_size = self.text_size
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other.revision = self.revision
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def detect_changes(self, old_entry):
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"""See InventoryEntry.detect_changes."""
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assert self.text_sha1 is not None
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assert old_entry.text_sha1 is not None
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text_modified = (self.text_sha1 != old_entry.text_sha1)
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meta_modified = (self.executable != old_entry.executable)
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return text_modified, meta_modified
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def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""See InventoryEntry._diff."""
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from_text = tree.get_file(self.file_id).readlines()
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to_text = to_tree.get_file(to_entry.file_id).readlines()
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text_diff(from_label, from_text,
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to_label, to_text, output_to)
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text_diff(to_label, to_text,
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from_label, from_text, output_to)
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except errors.BinaryFile:
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label_pair = (to_label, from_label)
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label_pair = (from_label, to_label)
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print >> output_to, \
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("Binary files %s and %s differ" % label_pair).encode('utf8')
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"""See InventoryEntry.has_text."""
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def __init__(self, file_id, name, parent_id):
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super(InventoryFile, self).__init__(file_id, name, parent_id)
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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def _put_in_tar(self, item, tree):
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"""See InventoryEntry._put_in_tar."""
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item.type = tarfile.REGTYPE
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fileobj = tree.get_file(self.file_id)
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item.size = self.text_size
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if tree.is_executable(self.file_id):
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def _put_on_disk(self, fullpath, tree):
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"""See InventoryEntry._put_on_disk."""
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osutils.pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
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if tree.is_executable(self.file_id):
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os.chmod(fullpath, 0755)
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def _read_tree_state(self, path, work_tree):
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"""See InventoryEntry._read_tree_state."""
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self.text_sha1 = work_tree.get_file_sha1(self.file_id, path=path)
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# FIXME: 20050930 probe for the text size when getting sha1
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# in _read_tree_state
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self.executable = work_tree.is_executable(self.file_id, path=path)
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return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s)"
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% (self.__class__.__name__,
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def _forget_tree_state(self):
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self.text_sha1 = None
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def snapshot(self, revision, path, previous_entries,
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work_tree, commit_builder):
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"""See InventoryEntry.snapshot."""
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# Note: We use a custom implementation of this method for files
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# because it's a performance critical part of commit.
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# If this is the initial commit for this file, we know the sha is
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# coming later so skip calculating it now (in _read_tree_state())
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if len(previous_entries) == 0:
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self.executable = work_tree.is_executable(self.file_id, path=path)
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self._read_tree_state(path, work_tree)
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# If nothing is changed from the sole parent, there's nothing to do
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if len(previous_entries) == 1:
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parent_ie = previous_entries.values()[0]
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if self._unchanged(parent_ie):
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self.revision = parent_ie.revision
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# Add the file to the repository
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self.revision = revision
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def get_content_byte_lines():
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return work_tree.get_file(self.file_id, path).readlines()
743
self.text_sha1, self.text_size = commit_builder.modified_file_text(
744
self.file_id, previous_entries, get_content_byte_lines,
745
self.text_sha1, self.text_size)
748
def _unchanged(self, previous_ie):
749
"""See InventoryEntry._unchanged."""
750
compatible = super(InventoryFile, self)._unchanged(previous_ie)
751
if self.text_sha1 != previous_ie.text_sha1:
754
# FIXME: 20050930 probe for the text size when getting sha1
755
# in _read_tree_state
756
self.text_size = previous_ie.text_size
757
if self.executable != previous_ie.executable:
762
class InventoryLink(InventoryEntry):
763
"""A file in an inventory."""
765
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
766
'text_id', 'parent_id', 'children', 'executable',
767
'revision', 'symlink_target', 'reference_revision']
769
def _check(self, checker, rev_id, tree):
770
"""See InventoryEntry._check"""
771
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
772
raise BzrCheckError('symlink {%s} has text in revision {%s}'
773
% (self.file_id, rev_id))
774
if self.symlink_target is None:
775
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
776
% (self.file_id, rev_id))
779
other = InventoryLink(self.file_id, self.name, self.parent_id)
780
other.symlink_target = self.symlink_target
781
other.revision = self.revision
784
def detect_changes(self, old_entry):
785
"""See InventoryEntry.detect_changes."""
786
# FIXME: which _modified field should we use ? RBC 20051003
787
text_modified = (self.symlink_target != old_entry.symlink_target)
789
mutter(" symlink target changed")
790
meta_modified = False
791
return text_modified, meta_modified
793
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
794
output_to, reverse=False):
795
"""See InventoryEntry._diff."""
796
from_text = self.symlink_target
797
if to_entry is not None:
798
to_text = to_entry.symlink_target
803
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
806
print >>output_to, '=== target was %r' % self.symlink_target
808
print >>output_to, '=== target is %r' % self.symlink_target
810
def __init__(self, file_id, name, parent_id):
811
super(InventoryLink, self).__init__(file_id, name, parent_id)
812
self.kind = 'symlink'
814
def kind_character(self):
815
"""See InventoryEntry.kind_character."""
818
def _put_in_tar(self, item, tree):
819
"""See InventoryEntry._put_in_tar."""
820
item.type = tarfile.SYMTYPE
824
item.linkname = self.symlink_target
827
def _put_on_disk(self, fullpath, tree):
828
"""See InventoryEntry._put_on_disk."""
830
os.symlink(self.symlink_target, fullpath)
832
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
834
def _read_tree_state(self, path, work_tree):
835
"""See InventoryEntry._read_tree_state."""
836
self.symlink_target = work_tree.get_symlink_target(self.file_id)
838
def _forget_tree_state(self):
839
self.symlink_target = None
841
def _unchanged(self, previous_ie):
842
"""See InventoryEntry._unchanged."""
843
compatible = super(InventoryLink, self)._unchanged(previous_ie)
844
if self.symlink_target != previous_ie.symlink_target:
848
def _snapshot_text(self, file_parents, work_tree, commit_builder):
849
"""See InventoryEntry._snapshot_text."""
850
commit_builder.modified_link(
851
self.file_id, file_parents, self.symlink_target)
855
class TreeReference(InventoryEntry):
857
kind = 'tree-reference'
859
def __init__(self, file_id, name, parent_id, revision=None,
860
reference_revision=None):
861
InventoryEntry.__init__(self, file_id, name, parent_id)
862
self.revision = revision
863
self.reference_revision = reference_revision
866
return TreeReference(self.file_id, self.name, self.parent_id,
867
self.revision, self.reference_revision)
869
def _snapshot_text(self, file_parents, work_tree, commit_builder):
870
commit_builder.modified_reference(self.file_id, file_parents)
873
def _read_tree_state(self, path, work_tree):
874
"""Populate fields in the inventory entry from the given tree.
876
self.reference_revision = work_tree.get_reference_revision(
879
def _forget_tree_state(self):
880
self.reference_revision = None
883
class Inventory(object):
884
"""Inventory of versioned files in a tree.
886
This describes which file_id is present at each point in the tree,
887
and possibly the SHA-1 or other information about the file.
888
Entries can be looked up either by path or by file_id.
890
The inventory represents a typical unix file tree, with
891
directories containing files and subdirectories. We never store
892
the full path to a file, because renaming a directory implicitly
893
moves all of its contents. This class internally maintains a
894
lookup tree that allows the children under a directory to be
897
InventoryEntry objects must not be modified after they are
898
inserted, other than through the Inventory API.
900
>>> inv = Inventory()
901
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
902
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
903
>>> inv['123-123'].name
906
May be treated as an iterator or set to look up file ids:
908
>>> bool(inv.path2id('hello.c'))
913
May also look up by name:
915
>>> [x[0] for x in inv.iter_entries()]
917
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
918
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
919
Traceback (most recent call last):
920
BzrError: parent_id {TREE_ROOT} not in inventory
921
>>> inv.add(InventoryFile('123-123', 'hello.c', 'TREE_ROOT-12345678-12345678'))
922
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678', sha1=None, len=None)
924
def __init__(self, root_id=ROOT_ID, revision_id=None):
925
"""Create or read an inventory.
927
If a working directory is specified, the inventory is read
928
from there. If the file is specified, read from that. If not,
929
the inventory is created empty.
931
The inventory is created with a default root directory, with
934
if root_id is not None:
935
assert root_id.__class__ == str
936
self._set_root(InventoryDirectory(root_id, u'', None))
940
self.revision_id = revision_id
942
def _set_root(self, ie):
944
self._byid = {self.root.file_id: self.root}
947
# TODO: jam 20051218 Should copy also copy the revision_id?
948
entries = self.iter_entries()
949
other = Inventory(entries.next()[1].file_id)
950
# copy recursively so we know directories will be added before
951
# their children. There are more efficient ways than this...
952
for path, entry in entries():
953
other.add(entry.copy())
957
return iter(self._byid)
960
"""Returns number of entries."""
961
return len(self._byid)
963
def iter_entries(self, from_dir=None):
964
"""Return (path, entry) pairs, in order by name."""
966
if self.root is None:
970
elif isinstance(from_dir, basestring):
971
from_dir = self._byid[from_dir]
973
# unrolling the recursive called changed the time from
974
# 440ms/663ms (inline/total) to 116ms/116ms
975
children = from_dir.children.items()
977
children = collections.deque(children)
978
stack = [(u'', children)]
980
from_dir_relpath, children = stack[-1]
983
name, ie = children.popleft()
985
# we know that from_dir_relpath never ends in a slash
986
# and 'f' doesn't begin with one, we can do a string op, rather
987
# than the checks of pathjoin(), though this means that all paths
989
path = from_dir_relpath + '/' + name
993
if ie.kind != 'directory':
996
# But do this child first
997
new_children = ie.children.items()
999
new_children = collections.deque(new_children)
1000
stack.append((path, new_children))
1001
# Break out of inner loop, so that we start outer loop with child
1004
# if we finished all children, pop it off the stack
1007
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None):
1008
"""Iterate over the entries in a directory first order.
1010
This returns all entries for a directory before returning
1011
the entries for children of a directory. This is not
1012
lexicographically sorted order, and is a hybrid between
1013
depth-first and breadth-first.
1015
:return: This yields (path, entry) pairs
1017
if specific_file_ids:
1018
safe = osutils.safe_file_id
1019
specific_file_ids = set(safe(fid) for fid in specific_file_ids)
1020
# TODO? Perhaps this should return the from_dir so that the root is
1021
# yielded? or maybe an option?
1022
if from_dir is None:
1023
if self.root is None:
1025
# Optimize a common case
1026
if specific_file_ids is not None and len(specific_file_ids) == 1:
1027
file_id = list(specific_file_ids)[0]
1029
yield self.id2path(file_id), self[file_id]
1031
from_dir = self.root
1032
if (specific_file_ids is None or
1033
self.root.file_id in specific_file_ids):
1034
yield u'', self.root
1035
elif isinstance(from_dir, basestring):
1036
from_dir = self._byid[from_dir]
1038
if specific_file_ids is not None:
1039
# TODO: jam 20070302 This could really be done as a loop rather
1040
# than a bunch of recursive calls.
1043
def add_ancestors(file_id):
1044
if file_id not in byid:
1046
parent_id = byid[file_id].parent_id
1047
if parent_id is None:
1049
if parent_id not in parents:
1050
parents.add(parent_id)
1051
add_ancestors(parent_id)
1052
for file_id in specific_file_ids:
1053
add_ancestors(file_id)
1057
stack = [(u'', from_dir)]
1059
cur_relpath, cur_dir = stack.pop()
1062
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
1064
child_relpath = cur_relpath + child_name
1066
if (specific_file_ids is None or
1067
child_ie.file_id in specific_file_ids):
1068
yield child_relpath, child_ie
1070
if child_ie.kind == 'directory':
1071
if parents is None or child_ie.file_id in parents:
1072
child_dirs.append((child_relpath+'/', child_ie))
1073
stack.extend(reversed(child_dirs))
1075
def make_entry(self, kind, name, parent_id, file_id=None):
1076
"""Simple thunk to bzrlib.inventory.make_entry."""
1077
return make_entry(kind, name, parent_id, file_id)
1080
"""Return list of (path, ie) for all entries except the root.
1082
This may be faster than iter_entries.
1085
def descend(dir_ie, dir_path):
1086
kids = dir_ie.children.items()
1088
for name, ie in kids:
1089
child_path = osutils.pathjoin(dir_path, name)
1090
accum.append((child_path, ie))
1091
if ie.kind == 'directory':
1092
descend(ie, child_path)
1094
descend(self.root, u'')
1097
def directories(self):
1098
"""Return (path, entry) pairs for all directories, including the root.
1101
def descend(parent_ie, parent_path):
1102
accum.append((parent_path, parent_ie))
1104
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
1107
for name, child_ie in kids:
1108
child_path = osutils.pathjoin(parent_path, name)
1109
descend(child_ie, child_path)
1110
descend(self.root, u'')
1113
def __contains__(self, file_id):
1114
"""True if this entry contains a file with given id.
1116
>>> inv = Inventory()
1117
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1118
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1124
file_id = osutils.safe_file_id(file_id)
1125
return (file_id in self._byid)
1127
def __getitem__(self, file_id):
1128
"""Return the entry for given file_id.
1130
>>> inv = Inventory()
1131
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1132
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
1133
>>> inv['123123'].name
1136
file_id = osutils.safe_file_id(file_id)
1138
return self._byid[file_id]
1140
# really we're passing an inventory, not a tree...
1141
raise errors.NoSuchId(self, file_id)
1143
def get_file_kind(self, file_id):
1144
file_id = osutils.safe_file_id(file_id)
1145
return self._byid[file_id].kind
1147
def get_child(self, parent_id, filename):
1148
parent_id = osutils.safe_file_id(parent_id)
1149
return self[parent_id].children.get(filename)
1151
def _add_child(self, entry):
1152
"""Add an entry to the inventory, without adding it to its parent"""
1153
if entry.file_id in self._byid:
1154
raise BzrError("inventory already contains entry with id {%s}" %
1156
self._byid[entry.file_id] = entry
1157
for child in getattr(entry, 'children', {}).itervalues():
1158
self._add_child(child)
1161
def add(self, entry):
1162
"""Add entry to inventory.
1164
To add a file to a branch ready to be committed, use Branch.add,
1167
Returns the new entry object.
1169
if entry.file_id in self._byid:
1170
raise errors.DuplicateFileId(entry.file_id,
1171
self._byid[entry.file_id])
1173
if entry.parent_id is None:
1174
assert self.root is None and len(self._byid) == 0
1178
parent = self._byid[entry.parent_id]
1180
raise BzrError("parent_id {%s} not in inventory" %
1183
if entry.name in parent.children:
1184
raise BzrError("%s is already versioned" %
1185
osutils.pathjoin(self.id2path(parent.file_id),
1186
entry.name).encode('utf-8'))
1187
parent.children[entry.name] = entry
1188
return self._add_child(entry)
1190
def add_path(self, relpath, kind, file_id=None, parent_id=None):
1191
"""Add entry from a path.
1193
The immediate parent must already be versioned.
1195
Returns the new entry object."""
1197
parts = osutils.splitpath(relpath)
1201
file_id = generate_ids.gen_root_id()
1203
file_id = osutils.safe_file_id(file_id)
1204
self.root = InventoryDirectory(file_id, '', None)
1205
self._byid = {self.root.file_id: self.root}
1208
parent_path = parts[:-1]
1209
parent_id = self.path2id(parent_path)
1210
if parent_id is None:
1211
raise errors.NotVersionedError(path=parent_path)
1212
ie = make_entry(kind, parts[-1], parent_id, file_id)
1215
def __delitem__(self, file_id):
1216
"""Remove entry by id.
1218
>>> inv = Inventory()
1219
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1220
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
1227
file_id = osutils.safe_file_id(file_id)
1230
assert ie.parent_id is None or \
1231
self[ie.parent_id].children[ie.name] == ie
1233
del self._byid[file_id]
1234
if ie.parent_id is not None:
1235
del self[ie.parent_id].children[ie.name]
1237
def __eq__(self, other):
1238
"""Compare two sets by comparing their contents.
1240
>>> i1 = Inventory()
1241
>>> i2 = Inventory()
1244
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
1245
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1248
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
1249
InventoryFile('123', 'foo', parent_id='TREE_ROOT', sha1=None, len=None)
1253
if not isinstance(other, Inventory):
1254
return NotImplemented
1256
return self._byid == other._byid
1258
def __ne__(self, other):
1259
return not self.__eq__(other)
1262
raise ValueError('not hashable')
1264
def _iter_file_id_parents(self, file_id):
1265
"""Yield the parents of file_id up to the root."""
1266
file_id = osutils.safe_file_id(file_id)
1267
while file_id is not None:
1269
ie = self._byid[file_id]
1271
raise errors.NoSuchId(tree=None, file_id=file_id)
1273
file_id = ie.parent_id
1275
def get_idpath(self, file_id):
1276
"""Return a list of file_ids for the path to an entry.
1278
The list contains one element for each directory followed by
1279
the id of the file itself. So the length of the returned list
1280
is equal to the depth of the file in the tree, counting the
1281
root directory as depth 1.
1283
file_id = osutils.safe_file_id(file_id)
1285
for parent in self._iter_file_id_parents(file_id):
1286
p.insert(0, parent.file_id)
1289
def id2path(self, file_id):
1290
"""Return as a string the path to file_id.
1293
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
1294
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
1295
>>> print i.id2path('foo-id')
1298
file_id = osutils.safe_file_id(file_id)
1299
# get all names, skipping root
1300
return '/'.join(reversed(
1301
[parent.name for parent in
1302
self._iter_file_id_parents(file_id)][:-1]))
1304
def path2id(self, name):
1305
"""Walk down through directories to return entry of last component.
1307
names may be either a list of path components, or a single
1308
string, in which case it is automatically split.
1310
This returns the entry of the last component in the path,
1311
which may be either a file or a directory.
1313
Returns None IFF the path is not found.
1315
if isinstance(name, basestring):
1316
name = osutils.splitpath(name)
1318
# mutter("lookup path %r" % name)
1325
children = getattr(parent, 'children', None)
1326
if children is None:
1329
assert cie.name == f
1330
assert cie.parent_id == parent.file_id
1333
# or raise an error?
1336
return parent.file_id
1338
def has_filename(self, names):
1339
return bool(self.path2id(names))
1341
def has_id(self, file_id):
1342
file_id = osutils.safe_file_id(file_id)
1343
return (file_id in self._byid)
1345
def remove_recursive_id(self, file_id):
1346
"""Remove file_id, and children, from the inventory.
1348
:param file_id: A file_id to remove.
1350
file_id = osutils.safe_file_id(file_id)
1351
to_find_delete = [self._byid[file_id]]
1353
while to_find_delete:
1354
ie = to_find_delete.pop()
1355
to_delete.append(ie.file_id)
1356
if ie.kind == 'directory':
1357
to_find_delete.extend(ie.children.values())
1358
for file_id in reversed(to_delete):
1360
del self._byid[file_id]
1361
if ie.parent_id is not None:
1362
del self[ie.parent_id].children[ie.name]
1366
def rename(self, file_id, new_parent_id, new_name):
1367
"""Move a file within the inventory.
1369
This can change either the name, or the parent, or both.
1371
This does not move the working file.
1373
file_id = osutils.safe_file_id(file_id)
1374
if not is_valid_name(new_name):
1375
raise BzrError("not an acceptable filename: %r" % new_name)
1377
new_parent = self._byid[new_parent_id]
1378
if new_name in new_parent.children:
1379
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
1381
new_parent_idpath = self.get_idpath(new_parent_id)
1382
if file_id in new_parent_idpath:
1383
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
1384
% (self.id2path(file_id), self.id2path(new_parent_id)))
1386
file_ie = self._byid[file_id]
1387
old_parent = self._byid[file_ie.parent_id]
1389
# TODO: Don't leave things messed up if this fails
1391
del old_parent.children[file_ie.name]
1392
new_parent.children[new_name] = file_ie
1394
file_ie.name = new_name
1395
file_ie.parent_id = new_parent_id
1397
def is_root(self, file_id):
1398
file_id = osutils.safe_file_id(file_id)
1399
return self.root is not None and file_id == self.root.file_id
1403
'directory': InventoryDirectory,
1404
'file': InventoryFile,
1405
'symlink': InventoryLink,
1406
'tree-reference': TreeReference
1409
def make_entry(kind, name, parent_id, file_id=None):
1410
"""Create an inventory entry.
1412
:param kind: the type of inventory entry to create.
1413
:param name: the basename of the entry.
1414
:param parent_id: the parent_id of the entry.
1415
:param file_id: the file_id to use. if None, one will be created.
1418
file_id = generate_ids.gen_file_id(name)
1420
file_id = osutils.safe_file_id(file_id)
1422
#------- This has been copied to bzrlib.dirstate.DirState.add, please
1423
# keep them synchronised.
1424
# we dont import normalized_filename directly because we want to be
1425
# able to change the implementation at runtime for tests.
1426
norm_name, can_access = osutils.normalized_filename(name)
1427
if norm_name != name:
1431
# TODO: jam 20060701 This would probably be more useful
1432
# if the error was raised with the full path
1433
raise errors.InvalidNormalization(name)
1436
factory = entry_factory[kind]
1438
raise BzrError("unknown kind %r" % kind)
1439
return factory(file_id, name, parent_id)
1444
def is_valid_name(name):
1446
if _NAME_RE is None:
1447
_NAME_RE = re.compile(r'^[^/\\]+$')
1449
return bool(_NAME_RE.match(name))
added
removed
bzrlib/inventory.py
