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- Committer: Martin Pool
- Date: 2005-08-23 00:42:04 UTC
- Revision ID: mbp@sourcefrog.net-20050823004204-7b310df0337eaaf3
- re-enable trace file (oops)
- files added:
- bzrlib/meta_store.py
- files removed:
- Makefile
- bzrlib/store
- bzrlib/transport
- files renamed:
- contrib/newinventory.py => bzrlib/newinventory.py
- bzrlib/store/__init__.py => bzrlib/store.py
- bzrlib/upgrade.py => tools/history2weaves.py
- bzrlib/selftest/test_weave.py => tools/testweave.py
- files modified:
- .bzrignore
- bzr *
added
removed
bzrlib/inventory.py
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# (C) 2005 Canonical Ltd
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#
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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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#
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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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#
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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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# 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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import os.path
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import re
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import sys
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import tarfile
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import types
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import sys, os.path, types, re
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import bzrlib
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from bzrlib.errors import BzrError, BzrCheckError
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from bzrlib.osutils import (pumpfile, quotefn, splitpath, joinpath,
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appendpath, sha_strings)
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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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from bzrlib.errors import NotVersionedError
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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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file_id
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name
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(within the parent directory)
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parent_id
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file_id of the parent directory, or ROOT_ID
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revision
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the revision_id in which this variation of this file was
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introduced.
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executable
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Indicates that this file should be executable on systems
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that support it.
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text_sha1
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sha-1 of the text of the file
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text_size
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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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* *file_id*
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* *name*: (only the basename within the directory, must not
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contain slashes)
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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.path2id('')
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'TREE_ROOT'
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>>> i.add(InventoryDirectory('123', 'src', ROOT_ID))
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InventoryDirectory('123', 'src', parent_id='TREE_ROOT')
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>>> i.add(InventoryFile('2323', 'hello.c', parent_id='123'))
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InventoryFile('2323', 'hello.c', parent_id='123')
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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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... print j
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...
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('src', InventoryDirectory('123', 'src', parent_id='TREE_ROOT'))
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('src/hello.c', InventoryFile('2323', 'hello.c', parent_id='123'))
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>>> i.add(InventoryFile('2323', 'bye.c', '123'))
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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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...
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BzrError: inventory already contains entry with id {2323}
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>>> i.add(InventoryFile('2324', 'bye.c', '123'))
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InventoryFile('2324', 'bye.c', parent_id='123')
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>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
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InventoryDirectory('2325', 'wibble', parent_id='123')
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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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'2325'
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>>> '2325' in i
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True
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>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
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InventoryFile('2326', 'wibble.c', parent_id='2325')
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>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
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>>> i['2326']
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InventoryFile('2326', 'wibble.c', parent_id='2325')
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>>> for path, entry in i.iter_entries():
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... print path.replace('\\\\', '/') # for win32 os.sep
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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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... print j[0]
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... assert i.path2id(j[0])
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...
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src
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src/bye.c
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src/hello.c
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src/wibble
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src/wibble/wibble.c
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>>> i.id2path('2326').replace('\\\\', '/')
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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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"""
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# TODO: split InventoryEntry into subclasses for files,
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# directories, etc etc.
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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']
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def _add_text_to_weave(self, new_lines, parents, weave_store, transaction):
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weave_store.add_text(self.file_id, self.revision, new_lines, parents,
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transaction)
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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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"""
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return False, False
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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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"""
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self._read_tree_state(tree)
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if to_entry:
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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)
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self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse)
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def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
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output_to, reverse=False):
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"""Perform a diff between two entries of the same kind."""
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def find_previous_heads(self, previous_inventories, entry_weave):
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"""Return the revisions and entries that directly preceed 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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"""
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def get_ancestors(weave, entry):
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return set(map(weave.idx_to_name,
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weave.inclusions([weave.lookup(entry.revision)])))
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heads = {}
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head_ancestors = {}
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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 heads:
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# fixup logic, there was a bug in revision updates.
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# with x bit support.
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try:
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if heads[ie.revision].executable != ie.executable:
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heads[ie.revision].executable = False
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ie.executable = False
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except AttributeError:
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pass
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assert heads[ie.revision] == ie
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else:
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# may want to add it.
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# may already be covered:
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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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if already_present:
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# an ancestor of a known head.
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continue
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# definately a head:
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ancestors = get_ancestors(entry_weave, 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 head is not really a head
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heads.pop(head)
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head_ancestors[ie.revision] = ancestors
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heads[ie.revision] = ie
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return heads
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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(os.path.join(root, dp))
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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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item.mtime = now
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fileobj = self._put_in_tar(item, tree)
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return item, fileobj
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def has_text(self):
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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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"""
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return False
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def __init__(self, file_id, name, parent_id, text_id=None):
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'text_id', 'parent_id', 'children', ]
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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.name
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'hello.c'
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>>> e.file_id
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'123'
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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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BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
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"""
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assert isinstance(name, basestring), name
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if '/' in name or '\\' in name:
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raise BzrCheckError('InventoryEntry name %r is invalid' % name)
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self.executable = False
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self.revision = None
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self.text_sha1 = None
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self.text_size = None
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self.file_id = file_id
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self.name = name
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self.kind = kind
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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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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', 'root_directory')
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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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"""
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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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"""
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fullpath = appendpath(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, 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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self.children = {}
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elif kind == 'file':
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pass
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else:
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raise BzrError("unhandled entry kind %r" % kind)
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def sorted_children(self):
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l = self.children.items()
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l.sort()
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return l
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@staticmethod
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def versionable_kind(kind):
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return kind in ('file', 'directory', 'symlink')
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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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tests.
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"""
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if self.parent_id != 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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(self.kind, rev_id))
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def copy(self):
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"""Clone this inventory entry."""
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raise NotImplementedError
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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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# others are added
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return other
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def _get_snapshot_change(self, previous_entries):
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if len(previous_entries) > 1:
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return 'merged'
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elif len(previous_entries) == 0:
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return 'added'
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else:
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return 'modified/renamed/reparented'
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def __repr__(self):
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return ("%s(%r, %r, parent_id=%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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self.file_id,
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self.name,
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self.kind,
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self.parent_id))
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def snapshot(self, revision, path, previous_entries,
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work_tree, weave_store, transaction):
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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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"""
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mutter('new parents of %s are %r', path, previous_entries)
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self._read_tree_state(work_tree)
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if len(previous_entries) == 1:
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# cannot be unchanged unless there is only one parent file rev.
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parent_ie = previous_entries.values()[0]
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if self._unchanged(parent_ie):
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mutter("found unchanged entry")
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self.revision = parent_ie.revision
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return "unchanged"
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return self.snapshot_revision(revision, previous_entries,
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work_tree, weave_store, transaction)
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def snapshot_revision(self, revision, previous_entries, work_tree,
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weave_store, transaction):
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"""Record this revision unconditionally."""
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mutter('new revision for {%s}', self.file_id)
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self.revision = revision
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change = self._get_snapshot_change(previous_entries)
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self._snapshot_text(previous_entries, work_tree, weave_store,
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transaction)
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return change
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def _snapshot_text(self, file_parents, work_tree, weave_store, transaction):
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"""Record the 'text' of this entry, whatever form that takes.
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This default implementation simply adds an empty text.
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"""
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mutter('storing file {%s} in revision {%s}',
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self.file_id, self.revision)
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self._add_text_to_weave([], file_parents, weave_store, transaction)
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def to_element(self):
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"""Convert to XML element"""
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from bzrlib.xml import Element
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e = Element('entry')
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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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v = getattr(self, f)
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if v != None:
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e.set(f, v)
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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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e.tail = '\n'
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return e
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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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## internally.
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parent_id = elt.get('parent_id')
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if parent_id == None:
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parent_id = ROOT_ID
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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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return self
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from_element = classmethod(from_element)
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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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)
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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 (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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def __ne__(self, other):
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return not (self == other)
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def __hash__(self):
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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 overriden in child classes.
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"""
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compatible = True
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# different inv parent
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if previous_ie.parent_id != self.parent_id:
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compatible = False
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# renamed
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elif previous_ie.name != self.name:
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compatible = False
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return compatible
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def _read_tree_state(self, 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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"""
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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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class RootEntry(InventoryEntry):
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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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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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def _check(self, checker, rev_id, tree):
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"""See InventoryEntry._check"""
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if self.text_sha1 != None or self.text_size != None or self.text_id != 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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def copy(self):
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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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# others are added
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return other
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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.children = {}
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self.kind = 'directory'
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
449
return '/'
450
451
def _put_in_tar(self, item, tree):
452
"""See InventoryEntry._put_in_tar."""
453
item.type = tarfile.DIRTYPE
454
fileobj = None
455
item.name += '/'
456
item.size = 0
457
item.mode = 0755
458
return fileobj
459
460
def _put_on_disk(self, fullpath, tree):
461
"""See InventoryEntry._put_on_disk."""
462
os.mkdir(fullpath)
463
464
465
class InventoryFile(InventoryEntry):
466
"""A file in an inventory."""
467
468
def _check(self, checker, rev_id, tree):
469
"""See InventoryEntry._check"""
470
revision = self.revision
471
t = (self.file_id, revision)
472
if t in checker.checked_texts:
473
prev_sha = checker.checked_texts[t]
474
if prev_sha != self.text_sha1:
475
raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
476
(self.file_id, rev_id))
477
else:
478
checker.repeated_text_cnt += 1
479
return
480
mutter('check version {%s} of {%s}', rev_id, self.file_id)
481
file_lines = tree.get_file_lines(self.file_id)
482
checker.checked_text_cnt += 1
483
if self.text_size != sum(map(len, file_lines)):
484
raise BzrCheckError('text {%s} wrong size' % self.text_id)
485
if self.text_sha1 != sha_strings(file_lines):
486
raise BzrCheckError('text {%s} wrong sha1' % self.text_id)
487
checker.checked_texts[t] = self.text_sha1
488
489
def copy(self):
490
other = InventoryFile(self.file_id, self.name, self.parent_id)
491
other.executable = self.executable
492
other.text_id = self.text_id
493
other.text_sha1 = self.text_sha1
494
other.text_size = self.text_size
495
other.revision = self.revision
496
return other
497
498
def detect_changes(self, old_entry):
499
"""See InventoryEntry.detect_changes."""
500
assert self.text_sha1 != None
501
assert old_entry.text_sha1 != None
502
text_modified = (self.text_sha1 != old_entry.text_sha1)
503
meta_modified = (self.executable != old_entry.executable)
504
return text_modified, meta_modified
505
506
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
507
output_to, reverse=False):
508
"""See InventoryEntry._diff."""
509
from_text = tree.get_file(self.file_id).readlines()
510
if to_entry:
511
to_text = to_tree.get_file(to_entry.file_id).readlines()
512
else:
513
to_text = []
514
if not reverse:
515
text_diff(from_label, from_text,
516
to_label, to_text, output_to)
517
else:
518
text_diff(to_label, to_text,
519
from_label, from_text, output_to)
520
521
def has_text(self):
522
"""See InventoryEntry.has_text."""
523
return True
524
525
def __init__(self, file_id, name, parent_id):
526
super(InventoryFile, self).__init__(file_id, name, parent_id)
527
self.kind = 'file'
528
529
def kind_character(self):
530
"""See InventoryEntry.kind_character."""
531
return ''
532
533
def _put_in_tar(self, item, tree):
534
"""See InventoryEntry._put_in_tar."""
535
item.type = tarfile.REGTYPE
536
fileobj = tree.get_file(self.file_id)
537
item.size = self.text_size
538
if tree.is_executable(self.file_id):
539
item.mode = 0755
540
else:
541
item.mode = 0644
542
return fileobj
543
544
def _put_on_disk(self, fullpath, tree):
545
"""See InventoryEntry._put_on_disk."""
546
pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
547
if tree.is_executable(self.file_id):
548
os.chmod(fullpath, 0755)
549
550
def _read_tree_state(self, work_tree):
551
"""See InventoryEntry._read_tree_state."""
552
self.text_sha1 = work_tree.get_file_sha1(self.file_id)
553
self.executable = work_tree.is_executable(self.file_id)
554
555
def _snapshot_text(self, file_parents, work_tree, weave_store, transaction):
556
"""See InventoryEntry._snapshot_text."""
557
mutter('storing file {%s} in revision {%s}',
558
self.file_id, self.revision)
559
# special case to avoid diffing on renames or
560
# reparenting
561
if (len(file_parents) == 1
562
and self.text_sha1 == file_parents.values()[0].text_sha1
563
and self.text_size == file_parents.values()[0].text_size):
564
previous_ie = file_parents.values()[0]
565
weave_store.add_identical_text(
566
self.file_id, previous_ie.revision,
567
self.revision, file_parents, transaction)
568
else:
569
new_lines = work_tree.get_file(self.file_id).readlines()
570
self._add_text_to_weave(new_lines, file_parents, weave_store,
571
transaction)
572
self.text_sha1 = sha_strings(new_lines)
573
self.text_size = sum(map(len, new_lines))
574
575
576
def _unchanged(self, previous_ie):
577
"""See InventoryEntry._unchanged."""
578
compatible = super(InventoryFile, self)._unchanged(previous_ie)
579
if self.text_sha1 != previous_ie.text_sha1:
580
compatible = False
581
else:
582
# FIXME: 20050930 probe for the text size when getting sha1
583
# in _read_tree_state
584
self.text_size = previous_ie.text_size
585
if self.executable != previous_ie.executable:
586
compatible = False
587
return compatible
588
589
590
class InventoryLink(InventoryEntry):
591
"""A file in an inventory."""
592
593
__slots__ = ['symlink_target']
594
595
def _check(self, checker, rev_id, tree):
596
"""See InventoryEntry._check"""
597
if self.text_sha1 != None or self.text_size != None or self.text_id != None:
598
raise BzrCheckError('symlink {%s} has text in revision {%s}'
599
% (self.file_id, rev_id))
600
if self.symlink_target == None:
601
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
602
% (self.file_id, rev_id))
603
604
def copy(self):
605
other = InventoryLink(self.file_id, self.name, self.parent_id)
606
other.symlink_target = self.symlink_target
607
other.revision = self.revision
608
return other
609
610
def detect_changes(self, old_entry):
611
"""See InventoryEntry.detect_changes."""
612
# FIXME: which _modified field should we use ? RBC 20051003
613
text_modified = (self.symlink_target != old_entry.symlink_target)
614
if text_modified:
615
mutter(" symlink target changed")
616
meta_modified = False
617
return text_modified, meta_modified
618
619
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
620
output_to, reverse=False):
621
"""See InventoryEntry._diff."""
622
from_text = self.symlink_target
623
if to_entry is not None:
624
to_text = to_entry.symlink_target
625
if reverse:
626
temp = from_text
627
from_text = to_text
628
to_text = temp
629
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
630
else:
631
if not reverse:
632
print >>output_to, '=== target was %r' % self.symlink_target
633
else:
634
print >>output_to, '=== target is %r' % self.symlink_target
635
636
def __init__(self, file_id, name, parent_id):
637
super(InventoryLink, self).__init__(file_id, name, parent_id)
638
self.kind = 'symlink'
639
640
def kind_character(self):
641
"""See InventoryEntry.kind_character."""
642
return ''
643
644
def _put_in_tar(self, item, tree):
645
"""See InventoryEntry._put_in_tar."""
646
iterm.type = tarfile.SYMTYPE
647
fileobj = None
648
item.size = 0
649
item.mode = 0755
650
item.linkname = self.symlink_target
651
return fileobj
652
653
def _put_on_disk(self, fullpath, tree):
654
"""See InventoryEntry._put_on_disk."""
655
try:
656
os.symlink(self.symlink_target, fullpath)
657
except OSError,e:
658
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
659
660
def _read_tree_state(self, work_tree):
661
"""See InventoryEntry._read_tree_state."""
662
self.symlink_target = work_tree.get_symlink_target(self.file_id)
663
664
def _unchanged(self, previous_ie):
665
"""See InventoryEntry._unchanged."""
666
compatible = super(InventoryLink, self)._unchanged(previous_ie)
667
if self.symlink_target != previous_ie.symlink_target:
668
compatible = False
669
return compatible
670
671
251
672
252
class Inventory(object):
673
253
"""Inventory of versioned files in a tree.
687
267
inserted, other than through the Inventory API.
688
268
689
269
>>> inv = Inventory()
690
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
691
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT')
270
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
692
271
>>> inv['123-123'].name
693
272
'hello.c'
694
273
704
283
>>> [x[0] for x in inv.iter_entries()]
705
284
['hello.c']
706
285
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
707
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
708
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678')
286
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
709
287
"""
710
288
def __init__(self, root_id=ROOT_ID):
711
289
"""Create or read an inventory.
717
295
The inventory is created with a default root directory, with
718
296
an id of None.
719
297
"""
720
# We are letting Branch.initialize() create a unique inventory
298
# We are letting Branch(init=True) create a unique inventory
721
299
# root id. Rather than generating a random one here.
722
300
#if root_id is None:
723
301
# root_id = bzrlib.branch.gen_file_id('TREE_ROOT')
725
303
self._byid = {self.root.file_id: self.root}
726
304
727
305
728
def copy(self):
729
other = Inventory(self.root.file_id)
730
# copy recursively so we know directories will be added before
731
# their children. There are more efficient ways than this...
732
for path, entry in self.iter_entries():
733
if entry == self.root:
734
continue
735
other.add(entry.copy())
736
return other
737
738
739
306
def __iter__(self):
740
307
return iter(self._byid)
741
308
803
370
"""True if this entry contains a file with given id.
804
371
805
372
>>> inv = Inventory()
806
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
807
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT')
373
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
808
374
>>> '123' in inv
809
375
True
810
376
>>> '456' in inv
817
383
"""Return the entry for given file_id.
818
384
819
385
>>> inv = Inventory()
820
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
821
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT')
386
>>> inv.add(InventoryEntry('123123', 'hello.c', 'file', ROOT_ID))
822
387
>>> inv['123123'].name
823
388
'hello.c'
824
389
"""
842
407
"""Add entry to inventory.
843
408
844
409
To add a file to a branch ready to be committed, use Branch.add,
845
which calls this.
846
847
Returns the new entry object.
848
"""
410
which calls this."""
849
411
if entry.file_id in self._byid:
850
412
raise BzrError("inventory already contains entry with id {%s}" % entry.file_id)
851
413
863
425
864
426
self._byid[entry.file_id] = entry
865
427
parent.children[entry.name] = entry
866
return entry
867
428
868
429
869
430
def add_path(self, relpath, kind, file_id=None):
870
431
"""Add entry from a path.
871
432
872
The immediate parent must already be versioned.
873
874
Returns the new entry object."""
433
The immediate parent must already be versioned"""
875
434
from bzrlib.branch import gen_file_id
876
435
877
436
parts = bzrlib.osutils.splitpath(relpath)
886
445
if parent_id == None:
887
446
raise NotVersionedError(parent_path)
888
447
889
if kind == 'directory':
890
ie = InventoryDirectory(file_id, parts[-1], parent_id)
891
elif kind == 'file':
892
ie = InventoryFile(file_id, parts[-1], parent_id)
893
elif kind == 'symlink':
894
ie = InventoryLink(file_id, parts[-1], parent_id)
895
else:
896
raise BzrError("unknown kind %r" % kind)
448
ie = InventoryEntry(file_id, parts[-1],
449
kind=kind, parent_id=parent_id)
897
450
return self.add(ie)
898
451
899
452
901
454
"""Remove entry by id.
902
455
903
456
>>> inv = Inventory()
904
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
905
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT')
457
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
906
458
>>> '123' in inv
907
459
True
908
460
>>> del inv['123']
924
476
del self[ie.parent_id].children[ie.name]
925
477
926
478
479
def to_element(self):
480
"""Convert to XML Element"""
481
from bzrlib.xml import Element
482
483
e = Element('inventory')
484
e.text = '\n'
485
if self.root.file_id not in (None, ROOT_ID):
486
e.set('file_id', self.root.file_id)
487
for path, ie in self.iter_entries():
488
e.append(ie.to_element())
489
return e
490
491
492
def from_element(cls, elt):
493
"""Construct from XML Element
494
495
>>> inv = Inventory()
496
>>> inv.add(InventoryEntry('foo.c-123981239', 'foo.c', 'file', ROOT_ID))
497
>>> elt = inv.to_element()
498
>>> inv2 = Inventory.from_element(elt)
499
>>> inv2 == inv
500
True
501
"""
502
# XXXX: doctest doesn't run this properly under python2.3
503
assert elt.tag == 'inventory'
504
root_id = elt.get('file_id') or ROOT_ID
505
o = cls(root_id)
506
for e in elt:
507
ie = InventoryEntry.from_element(e)
508
if ie.parent_id == ROOT_ID:
509
ie.parent_id = root_id
510
o.add(ie)
511
return o
512
513
from_element = classmethod(from_element)
514
515
927
516
def __eq__(self, other):
928
517
"""Compare two sets by comparing their contents.
929
518
931
520
>>> i2 = Inventory()
932
521
>>> i1 == i2
933
522
True
934
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
935
InventoryFile('123', 'foo', parent_id='TREE_ROOT')
523
>>> i1.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
936
524
>>> i1 == i2
937
525
False
938
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
939
InventoryFile('123', 'foo', parent_id='TREE_ROOT')
526
>>> i2.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
940
527
>>> i1 == i2
941
528
True
942
529
"""
951
538
952
539
953
540
def __ne__(self, other):
954
return not self.__eq__(other)
541
return not (self == other)
955
542
956
543
957
544
def __hash__(self):
958
545
raise ValueError('not hashable')
959
546
960
547
548
961
549
def get_idpath(self, file_id):
962
550
"""Return a list of file_ids for the path to an entry.
963
551
978
566
979
567
980
568
def id2path(self, file_id):
981
"""Return as a list the path to file_id.
982
983
>>> i = Inventory()
984
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
985
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
986
>>> print i.id2path('foo-id').replace(os.sep, '/')
987
src/foo.c
988
"""
569
"""Return as a list the path to file_id."""
570
989
571
# get all names, skipping root
990
572
p = [self._byid[fid].name for fid in self.get_idpath(file_id)[1:]]
991
573
return os.sep.join(p)
Loggerhead is a web-based interface for Breezy
Version: 2.0.1