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# Copyright (C) 2005, 2006, 2007 Canonical Ltd
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# (C) 2005 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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ROOT_ID = "TREE_ROOT"
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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import sys, os.path, types, re
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from cElementTree import Element, ElementTree, SubElement
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from elementtree.ElementTree import Element, ElementTree, SubElement
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from xml import XMLMixin
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from errors import bailout, BzrError, BzrCheckError
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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.osutils import uuid, quotefn, splitpath, joinpath, appendpath
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from bzrlib.trace import mutter
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class InventoryEntry(object):
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class InventoryEntry(XMLMixin):
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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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* *name*: (only the basename within the directory, must not
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* *kind*: "directory" or "file"
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* *directory_id*: (if absent/null means the branch root directory)
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* *text_sha1*: only for files
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* *text_size*: in bytes, only for files
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* *text_id*: identifier for the text version, only for files
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InventoryEntries can also exist inside a WorkingTree
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inventory, in which case they are not yet bound to a
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particular revision of the file. In that case the text_sha1,
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text_size and text_id are absent.
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>>> i = Inventory()
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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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>>> i.add(InventoryEntry('123', 'src', 'directory', ROOT_ID))
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>>> i.add(InventoryEntry('2323', 'hello.c', 'file', parent_id='123'))
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>>> for j in i.iter_entries():
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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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('src', InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT'))
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('src/hello.c', InventoryEntry('2323', 'hello.c', kind='file', parent_id='123'))
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>>> i.add(InventoryEntry('2323', 'bye.c', 'file', '123'))
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Traceback (most recent call last):
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BzrError: ('inventory already contains entry with id {2323}', [])
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>>> i.add(InventoryEntry('2324', 'bye.c', 'file', '123'))
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>>> i.add(InventoryEntry('2325', 'wibble', 'directory', '123'))
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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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>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
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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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InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
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>>> for j in i.iter_entries():
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... assert i.path2id(j[0])
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src/wibble/wibble.c
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>>> i.id2path('2326')
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'src/wibble/wibble.c'
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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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# 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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# TODO: split InventoryEntry into subclasses for files,
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# directories, etc etc.
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def __init__(self, file_id, name, kind, 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 = InventoryEntry('123', 'hello.c', 'file', ROOT_ID)
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>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
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>>> e = InventoryEntry('123', 'src/hello.c', 'file', 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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BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
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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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raise BzrCheckError('InventoryEntry name %r is invalid' % name)
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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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if kind == 'directory':
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raise BzrError("unhandled entry kind %r" % 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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l = self.children.items()
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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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other = InventoryEntry(self.file_id, self.name, self.kind,
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self.parent_id, 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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# note that children are *not* copied; they're pulled across when
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def __repr__(self):
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return ("%s(%r, %r, parent_id=%r, revision=%r)"
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return ("%s(%r, %r, kind=%r, parent_id=%r)"
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% (self.__class__.__name__,
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def __eq__(self, other):
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def to_element(self):
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"""Convert to XML element"""
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e.set('name', self.name)
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e.set('file_id', self.file_id)
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e.set('kind', self.kind)
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if self.text_size != None:
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e.set('text_size', '%d' % self.text_size)
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for f in ['text_id', 'text_sha1']:
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# to be conservative, we don't externalize the root pointers
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# for now, leaving them as null in the xml form. in a future
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# version it will be implied by nested elements.
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if self.parent_id != ROOT_ID:
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assert isinstance(self.parent_id, basestring)
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e.set('parent_id', self.parent_id)
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def from_element(cls, elt):
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assert elt.tag == 'entry'
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## original format inventories don't have a parent_id for
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## nodes in the root directory, but it's cleaner to use one
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parent_id = elt.get('parent_id')
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if parent_id == None:
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self = cls(elt.get('file_id'), elt.get('name'), elt.get('kind'), parent_id)
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self.text_id = elt.get('text_id')
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self.text_sha1 = elt.get('text_sha1')
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## mutter("read inventoryentry: %r" % (elt.attrib))
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v = elt.get('text_size')
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self.text_size = v and int(v)
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from_element = classmethod(from_element)
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def __cmp__(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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return cmp(self.file_id, other.file_id) \
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or cmp(self.name, other.name) \
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or cmp(self.text_sha1, other.text_sha1) \
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or cmp(self.text_size, other.text_size) \
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or cmp(self.text_id, other.text_id) \
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or cmp(self.parent_id, other.parent_id) \
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or cmp(self.kind, other.kind)
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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.children = {}
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self.kind = 'directory'
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self.kind = 'root_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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def __cmp__(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):
538
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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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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'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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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
588
checker.checked_weaves[self.file_id] = True
590
w = tree._get_weave(self.file_id)
592
mutter('check version {%s} of {%s}', tree_revision_id, self.file_id)
593
checker.checked_text_cnt += 1
594
# We can't check the length, because Weave doesn't store that
595
# information, and the whole point of looking at the weave's
596
# sha1sum is that we don't have to extract the text.
597
if self.text_sha1 != w.get_sha1(self.revision):
598
raise BzrCheckError('text {%s} version {%s} wrong sha1'
599
% (self.file_id, self.revision))
600
checker.checked_texts[t] = self.text_sha1
603
other = InventoryFile(self.file_id, self.name, self.parent_id)
604
other.executable = self.executable
605
other.text_id = self.text_id
606
other.text_sha1 = self.text_sha1
607
other.text_size = self.text_size
608
other.revision = self.revision
611
def detect_changes(self, old_entry):
612
"""See InventoryEntry.detect_changes."""
613
assert self.text_sha1 is not None
614
assert old_entry.text_sha1 is not None
615
text_modified = (self.text_sha1 != old_entry.text_sha1)
616
meta_modified = (self.executable != old_entry.executable)
617
return text_modified, meta_modified
619
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
620
output_to, reverse=False):
621
"""See InventoryEntry._diff."""
623
from_text = tree.get_file(self.file_id).readlines()
625
to_text = to_tree.get_file(to_entry.file_id).readlines()
629
text_diff(from_label, from_text,
630
to_label, to_text, output_to)
632
text_diff(to_label, to_text,
633
from_label, from_text, output_to)
634
except errors.BinaryFile:
636
label_pair = (to_label, from_label)
638
label_pair = (from_label, to_label)
640
("Binary files %s and %s differ\n" % label_pair).encode('utf8'))
643
"""See InventoryEntry.has_text."""
646
def __init__(self, file_id, name, parent_id):
647
super(InventoryFile, self).__init__(file_id, name, parent_id)
650
def kind_character(self):
651
"""See InventoryEntry.kind_character."""
654
def _put_in_tar(self, item, tree):
655
"""See InventoryEntry._put_in_tar."""
656
item.type = tarfile.REGTYPE
657
fileobj = tree.get_file(self.file_id)
658
item.size = self.text_size
659
if tree.is_executable(self.file_id):
665
def _put_on_disk(self, fullpath, tree):
666
"""See InventoryEntry._put_on_disk."""
667
osutils.pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
668
if tree.is_executable(self.file_id):
669
os.chmod(fullpath, 0755)
671
def _read_tree_state(self, path, work_tree):
672
"""See InventoryEntry._read_tree_state."""
673
self.text_sha1 = work_tree.get_file_sha1(self.file_id, path=path)
674
# FIXME: 20050930 probe for the text size when getting sha1
675
# in _read_tree_state
676
self.executable = work_tree.is_executable(self.file_id, path=path)
679
return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s)"
680
% (self.__class__.__name__,
687
def _forget_tree_state(self):
688
self.text_sha1 = None
690
def _unchanged(self, previous_ie):
691
"""See InventoryEntry._unchanged."""
692
compatible = super(InventoryFile, self)._unchanged(previous_ie)
693
if self.text_sha1 != previous_ie.text_sha1:
696
# FIXME: 20050930 probe for the text size when getting sha1
697
# in _read_tree_state
698
self.text_size = previous_ie.text_size
699
if self.executable != previous_ie.executable:
704
class InventoryLink(InventoryEntry):
705
"""A file in an inventory."""
707
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
708
'text_id', 'parent_id', 'children', 'executable',
709
'revision', 'symlink_target', 'reference_revision']
711
def _check(self, checker, rev_id, tree):
712
"""See InventoryEntry._check"""
713
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
714
raise BzrCheckError('symlink {%s} has text in revision {%s}'
715
% (self.file_id, rev_id))
716
if self.symlink_target is None:
717
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
718
% (self.file_id, rev_id))
721
other = InventoryLink(self.file_id, self.name, self.parent_id)
722
other.symlink_target = self.symlink_target
723
other.revision = self.revision
726
def detect_changes(self, old_entry):
727
"""See InventoryEntry.detect_changes."""
728
# FIXME: which _modified field should we use ? RBC 20051003
729
text_modified = (self.symlink_target != old_entry.symlink_target)
731
mutter(" symlink target changed")
732
meta_modified = False
733
return text_modified, meta_modified
735
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
736
output_to, reverse=False):
737
"""See InventoryEntry._diff."""
738
from_text = self.symlink_target
739
if to_entry is not None:
740
to_text = to_entry.symlink_target
745
output_to.write('=== target changed %r => %r\n' % (from_text, to_text))
748
output_to.write('=== target was %r\n' % self.symlink_target)
750
output_to.write('=== target is %r\n' % self.symlink_target)
752
def __init__(self, file_id, name, parent_id):
753
super(InventoryLink, self).__init__(file_id, name, parent_id)
754
self.kind = 'symlink'
756
def kind_character(self):
757
"""See InventoryEntry.kind_character."""
760
def _put_in_tar(self, item, tree):
761
"""See InventoryEntry._put_in_tar."""
762
item.type = tarfile.SYMTYPE
766
item.linkname = self.symlink_target
769
def _put_on_disk(self, fullpath, tree):
770
"""See InventoryEntry._put_on_disk."""
772
os.symlink(self.symlink_target, fullpath)
774
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
776
def _read_tree_state(self, path, work_tree):
777
"""See InventoryEntry._read_tree_state."""
778
self.symlink_target = work_tree.get_symlink_target(self.file_id)
780
def _forget_tree_state(self):
781
self.symlink_target = None
783
def _unchanged(self, previous_ie):
784
"""See InventoryEntry._unchanged."""
785
compatible = super(InventoryLink, self)._unchanged(previous_ie)
786
if self.symlink_target != previous_ie.symlink_target:
791
class TreeReference(InventoryEntry):
793
kind = 'tree-reference'
795
def __init__(self, file_id, name, parent_id, revision=None,
796
reference_revision=None):
797
InventoryEntry.__init__(self, file_id, name, parent_id)
798
self.revision = revision
799
self.reference_revision = reference_revision
802
return TreeReference(self.file_id, self.name, self.parent_id,
803
self.revision, self.reference_revision)
805
def _read_tree_state(self, path, work_tree):
806
"""Populate fields in the inventory entry from the given tree.
808
self.reference_revision = work_tree.get_reference_revision(
811
def _forget_tree_state(self):
812
self.reference_revision = None
814
def _unchanged(self, previous_ie):
815
"""See InventoryEntry._unchanged."""
816
compatible = super(TreeReference, self)._unchanged(previous_ie)
817
if self.reference_revision != previous_ie.reference_revision:
822
class Inventory(object):
243
return cmp(self.file_id, other.file_id) \
244
or cmp(self.children, other.children)
248
class Inventory(XMLMixin):
823
249
"""Inventory of versioned files in a tree.
825
251
This describes which file_id is present at each point in the tree,
870
298
The inventory is created with a default root directory, with
873
if root_id is not None:
874
assert root_id.__class__ == str
875
self._set_root(InventoryDirectory(root_id, u'', None))
879
self.revision_id = revision_id
882
return "<Inventory object at %x, contents=%r>" % (id(self), self._byid)
884
def apply_delta(self, delta):
885
"""Apply a delta to this inventory.
887
:param delta: A list of changes to apply. After all the changes are
888
applied the final inventory must be internally consistent, but it
889
is ok to supply changes which, if only half-applied would have an
890
invalid result - such as supplying two changes which rename two
891
files, 'A' and 'B' with each other : [('A', 'B', 'A-id', a_entry),
892
('B', 'A', 'B-id', b_entry)].
894
Each change is a tuple, of the form (old_path, new_path, file_id,
897
When new_path is None, the change indicates the removal of an entry
898
from the inventory and new_entry will be ignored (using None is
899
appropriate). If new_path is not None, then new_entry must be an
900
InventoryEntry instance, which will be incorporated into the
901
inventory (and replace any existing entry with the same file id).
903
When old_path is None, the change indicates the addition of
904
a new entry to the inventory.
906
When neither new_path nor old_path are None, the change is a
907
modification to an entry, such as a rename, reparent, kind change
910
The children attribute of new_entry is ignored. This is because
911
this method preserves children automatically across alterations to
912
the parent of the children, and cases where the parent id of a
913
child is changing require the child to be passed in as a separate
914
change regardless. E.g. in the recursive deletion of a directory -
915
the directory's children must be included in the delta, or the
916
final inventory will be invalid.
919
# Remove all affected items which were in the original inventory,
920
# starting with the longest paths, thus ensuring parents are examined
921
# after their children, which means that everything we examine has no
922
# modified children remaining by the time we examine it.
923
for old_path, file_id in sorted(((op, f) for op, np, f, e in delta
924
if op is not None), reverse=True):
925
if file_id not in self:
928
# Preserve unaltered children of file_id for later reinsertion.
929
children[file_id] = getattr(self[file_id], 'children', {})
930
# Remove file_id and the unaltered children. If file_id is not
931
# being deleted it will be reinserted back later.
932
self.remove_recursive_id(file_id)
933
# Insert all affected which should be in the new inventory, reattaching
934
# their children if they had any. This is done from shortest path to
935
# longest, ensuring that items which were modified and whose parents in
936
# the resulting inventory were also modified, are inserted after their
938
for new_path, new_entry in sorted((np, e) for op, np, f, e in
939
delta if np is not None):
940
if new_entry.kind == 'directory':
941
new_entry.children = children.get(new_entry.file_id, {})
944
def _set_root(self, ie):
301
self.root = RootEntry(ROOT_ID)
946
302
self._byid = {self.root.file_id: self.root}
949
# TODO: jam 20051218 Should copy also copy the revision_id?
950
entries = self.iter_entries()
951
if self.root is None:
952
return Inventory(root_id=None)
953
other = Inventory(entries.next()[1].file_id)
954
# copy recursively so we know directories will be added before
955
# their children. There are more efficient ways than this...
956
for path, entry in entries:
957
other.add(entry.copy())
960
305
def __iter__(self):
961
306
return iter(self._byid)
963
309
def __len__(self):
964
310
"""Returns number of entries."""
965
311
return len(self._byid)
967
314
def iter_entries(self, from_dir=None):
968
315
"""Return (path, entry) pairs, in order by name."""
970
if self.root is None:
974
elif isinstance(from_dir, basestring):
975
from_dir = self._byid[from_dir]
977
# unrolling the recursive called changed the time from
978
# 440ms/663ms (inline/total) to 116ms/116ms
979
children = from_dir.children.items()
981
children = collections.deque(children)
982
stack = [(u'', children)]
984
from_dir_relpath, children = stack[-1]
987
name, ie = children.popleft()
989
# we know that from_dir_relpath never ends in a slash
990
# and 'f' doesn't begin with one, we can do a string op, rather
991
# than the checks of pathjoin(), though this means that all paths
993
path = from_dir_relpath + '/' + name
997
if ie.kind != 'directory':
1000
# But do this child first
1001
new_children = ie.children.items()
1003
new_children = collections.deque(new_children)
1004
stack.append((path, new_children))
1005
# Break out of inner loop, so that we start outer loop with child
1008
# if we finished all children, pop it off the stack
1011
def iter_entries_by_dir(self, from_dir=None, specific_file_ids=None,
1012
yield_parents=False):
1013
"""Iterate over the entries in a directory first order.
1015
This returns all entries for a directory before returning
1016
the entries for children of a directory. This is not
1017
lexicographically sorted order, and is a hybrid between
1018
depth-first and breadth-first.
1020
:param yield_parents: If True, yield the parents from the root leading
1021
down to specific_file_ids that have been requested. This has no
1022
impact if specific_file_ids is None.
1023
:return: This yields (path, entry) pairs
1025
if specific_file_ids and not isinstance(specific_file_ids, set):
1026
specific_file_ids = set(specific_file_ids)
1027
# TODO? Perhaps this should return the from_dir so that the root is
1028
# yielded? or maybe an option?
1029
if from_dir is None:
1030
if self.root is None:
1032
# Optimize a common case
1033
if (not yield_parents and specific_file_ids is not None and
1034
len(specific_file_ids) == 1):
1035
file_id = list(specific_file_ids)[0]
1037
yield self.id2path(file_id), self[file_id]
1039
from_dir = self.root
1040
if (specific_file_ids is None or yield_parents or
1041
self.root.file_id in specific_file_ids):
1042
yield u'', self.root
1043
elif isinstance(from_dir, basestring):
1044
from_dir = self._byid[from_dir]
1046
if specific_file_ids is not None:
1047
# TODO: jam 20070302 This could really be done as a loop rather
1048
# than a bunch of recursive calls.
1051
def add_ancestors(file_id):
1052
if file_id not in byid:
1054
parent_id = byid[file_id].parent_id
1055
if parent_id is None:
1057
if parent_id not in parents:
1058
parents.add(parent_id)
1059
add_ancestors(parent_id)
1060
for file_id in specific_file_ids:
1061
add_ancestors(file_id)
1065
stack = [(u'', from_dir)]
1067
cur_relpath, cur_dir = stack.pop()
1070
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
1072
child_relpath = cur_relpath + child_name
1074
if (specific_file_ids is None or
1075
child_ie.file_id in specific_file_ids or
1076
(yield_parents and child_ie.file_id in parents)):
1077
yield child_relpath, child_ie
1079
if child_ie.kind == 'directory':
1080
if parents is None or child_ie.file_id in parents:
1081
child_dirs.append((child_relpath+'/', child_ie))
1082
stack.extend(reversed(child_dirs))
1084
def make_entry(self, kind, name, parent_id, file_id=None):
1085
"""Simple thunk to bzrlib.inventory.make_entry."""
1086
return make_entry(kind, name, parent_id, file_id)
1089
"""Return list of (path, ie) for all entries except the root.
1091
This may be faster than iter_entries.
1094
def descend(dir_ie, dir_path):
1095
kids = dir_ie.children.items()
1097
for name, ie in kids:
1098
child_path = osutils.pathjoin(dir_path, name)
1099
accum.append((child_path, ie))
319
elif isinstance(from_dir, basestring):
320
from_dir = self._byid[from_dir]
322
kids = from_dir.children.items()
324
for name, ie in kids:
326
if ie.kind == 'directory':
327
for cn, cie in self.iter_entries(from_dir=ie.file_id):
328
yield os.path.join(name, cn), cie
332
def directories(self):
333
"""Return (path, entry) pairs for all directories.
335
def descend(parent_ie):
336
parent_name = parent_ie.name
337
yield parent_name, parent_ie
339
# directory children in sorted order
341
for ie in parent_ie.children.itervalues():
1100
342
if ie.kind == 'directory':
1101
descend(ie, child_path)
1103
descend(self.root, u'')
1106
def directories(self):
1107
"""Return (path, entry) pairs for all directories, including the root.
1110
def descend(parent_ie, parent_path):
1111
accum.append((parent_path, parent_ie))
343
dn.append((ie.name, ie))
1113
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
346
for name, child_ie in dn:
347
for sub_name, sub_ie in descend(child_ie):
348
yield appendpath(parent_name, sub_name), sub_ie
1116
for name, child_ie in kids:
1117
child_path = osutils.pathjoin(parent_path, name)
1118
descend(child_ie, child_path)
1119
descend(self.root, u'')
350
for name, ie in descend(self.root):
1122
355
def __contains__(self, file_id):
1123
356
"""True if this entry contains a file with given id.
1125
358
>>> inv = Inventory()
1126
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1127
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
359
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
1128
360
>>> '123' in inv
1130
362
>>> '456' in inv
1133
return (file_id in self._byid)
365
return file_id in self._byid
1135
368
def __getitem__(self, file_id):
1136
369
"""Return the entry for given file_id.
1138
371
>>> inv = Inventory()
1139
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1140
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
372
>>> inv.add(InventoryEntry('123123', 'hello.c', 'file', ROOT_ID))
1141
373
>>> inv['123123'].name
1145
377
return self._byid[file_id]
1146
378
except KeyError:
1147
# really we're passing an inventory, not a tree...
1148
raise errors.NoSuchId(self, file_id)
380
raise BzrError("can't look up file_id None")
382
raise BzrError("file_id {%s} not in inventory" % file_id)
1150
385
def get_file_kind(self, file_id):
1151
386
return self._byid[file_id].kind
added
removed
bzrlib/inventory.py
