36
51
An InventoryEntry has the following fields, which are also
37
52
present in the XML inventory-entry element:
40
* *name*: (only the basename within the directory, must not
42
* *kind*: "directory" or "file"
43
* *directory_id*: (if absent/null means the branch root directory)
44
* *text_sha1*: only for files
45
* *text_size*: in bytes, only for files
46
* *text_id*: identifier for the text version, only for files
48
InventoryEntries can also exist inside a WorkingTree
49
inventory, in which case they are not yet bound to a
50
particular revision of the file. In that case the text_sha1,
51
text_size and text_id are absent.
57
(within the parent directory)
60
file_id of the parent directory, or ROOT_ID
63
the revision_id in which this variation of this file was
67
Indicates that this file should be executable on systems
71
sha-1 of the text of the file
74
size in bytes of the text of the file
76
(reading a version 4 tree created a text_id field.)
54
78
>>> i = Inventory()
57
>>> i.add(InventoryEntry('123', 'src', 'directory', ROOT_ID))
58
>>> i.add(InventoryEntry('2323', 'hello.c', 'file', parent_id='123'))
59
>>> for j in i.iter_entries():
81
>>> i.add(InventoryDirectory('123', 'src', ROOT_ID))
82
InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None)
83
>>> i.add(InventoryFile('2323', 'hello.c', parent_id='123'))
84
InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None)
85
>>> shouldbe = {0: '', 1: 'src', 2: pathjoin('src','hello.c')}
86
>>> for ix, j in enumerate(i.iter_entries()):
87
... print (j[0] == shouldbe[ix], j[1])
62
('src', InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT'))
63
('src/hello.c', InventoryEntry('2323', 'hello.c', kind='file', parent_id='123'))
64
>>> i.add(InventoryEntry('2323', 'bye.c', 'file', '123'))
89
(True, InventoryDirectory('TREE_ROOT', '', parent_id=None, revision=None))
90
(True, InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None))
91
(True, InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None))
92
>>> i.add(InventoryFile('2323', 'bye.c', '123'))
65
93
Traceback (most recent call last):
67
95
BzrError: inventory already contains entry with id {2323}
68
>>> i.add(InventoryEntry('2324', 'bye.c', 'file', '123'))
69
>>> i.add(InventoryEntry('2325', 'wibble', 'directory', '123'))
96
>>> i.add(InventoryFile('2324', 'bye.c', '123'))
97
InventoryFile('2324', 'bye.c', parent_id='123', sha1=None, len=None)
98
>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
99
InventoryDirectory('2325', 'wibble', parent_id='123', revision=None)
70
100
>>> i.path2id('src/wibble')
74
>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
104
>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
105
InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
76
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
77
>>> for j in i.iter_entries():
79
... assert i.path2id(j[0])
107
InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
108
>>> for path, entry in i.iter_entries():
110
... assert i.path2id(path)
85
117
src/wibble/wibble.c
86
118
>>> i.id2path('2326')
87
119
'src/wibble/wibble.c'
89
TODO: Maybe also keep the full path of the entry, and the children?
90
But those depend on its position within a particular inventory, and
91
it would be nice not to need to hold the backpointer here.
94
# TODO: split InventoryEntry into subclasses for files,
95
# directories, etc etc.
97
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
98
'text_id', 'parent_id', 'children', ]
100
def __init__(self, file_id, name, kind, parent_id, text_id=None):
122
# Constants returned by describe_change()
124
# TODO: These should probably move to some kind of FileChangeDescription
125
# class; that's like what's inside a TreeDelta but we want to be able to
126
# generate them just for one file at a time.
128
MODIFIED_AND_RENAMED = 'modified and renamed'
132
def detect_changes(self, old_entry):
133
"""Return a (text_modified, meta_modified) from this to old_entry.
135
_read_tree_state must have been called on self and old_entry prior to
136
calling detect_changes.
140
def diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
141
output_to, reverse=False):
142
"""Perform a diff from this to to_entry.
144
text_diff will be used for textual difference calculation.
145
This is a template method, override _diff in child classes.
147
self._read_tree_state(tree.id2path(self.file_id), tree)
149
# cannot diff from one kind to another - you must do a removal
150
# and an addif they do not match.
151
assert self.kind == to_entry.kind
152
to_entry._read_tree_state(to_tree.id2path(to_entry.file_id),
154
self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
157
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
158
output_to, reverse=False):
159
"""Perform a diff between two entries of the same kind."""
161
def find_previous_heads(self, previous_inventories,
162
versioned_file_store,
165
"""Return the revisions and entries that directly precede this.
167
Returned as a map from revision to inventory entry.
169
This is a map containing the file revisions in all parents
170
for which the file exists, and its revision is not a parent of
171
any other. If the file is new, the set will be empty.
173
:param versioned_file_store: A store where ancestry data on this
174
file id can be queried.
175
:param transaction: The transaction that queries to the versioned
176
file store should be completed under.
177
:param entry_vf: The entry versioned file, if its already available.
179
def get_ancestors(weave, entry):
180
return set(weave.get_ancestry(entry.revision))
181
# revision:ie mapping for each ie found in previous_inventories.
183
# revision:ie mapping with one revision for each head.
185
# revision: ancestor list for each head
187
# identify candidate head revision ids.
188
for inv in previous_inventories:
189
if self.file_id in inv:
190
ie = inv[self.file_id]
191
assert ie.file_id == self.file_id
192
if ie.revision in candidates:
193
# same revision value in two different inventories:
194
# correct possible inconsistencies:
195
# * there was a bug in revision updates with 'x' bit
198
if candidates[ie.revision].executable != ie.executable:
199
candidates[ie.revision].executable = False
200
ie.executable = False
201
except AttributeError:
203
# must now be the same.
204
assert candidates[ie.revision] == ie
206
# add this revision as a candidate.
207
candidates[ie.revision] = ie
209
# common case optimisation
210
if len(candidates) == 1:
211
# if there is only one candidate revision found
212
# then we can opening the versioned file to access ancestry:
213
# there cannot be any ancestors to eliminate when there is
214
# only one revision available.
215
heads[ie.revision] = ie
218
# eliminate ancestors amongst the available candidates:
219
# heads are those that are not an ancestor of any other candidate
220
# - this provides convergence at a per-file level.
221
for ie in candidates.values():
222
# may be an ancestor of a known head:
223
already_present = 0 != len(
224
[head for head in heads
225
if ie.revision in head_ancestors[head]])
227
# an ancestor of an analyzed candidate.
229
# not an ancestor of a known head:
230
# load the versioned file for this file id if needed
232
entry_vf = versioned_file_store.get_weave_or_empty(
233
self.file_id, transaction)
234
ancestors = get_ancestors(entry_vf, ie)
235
# may knock something else out:
236
check_heads = list(heads.keys())
237
for head in check_heads:
238
if head in ancestors:
239
# this previously discovered 'head' is not
240
# really a head - its an ancestor of the newly
243
head_ancestors[ie.revision] = ancestors
244
heads[ie.revision] = ie
247
def get_tar_item(self, root, dp, now, tree):
248
"""Get a tarfile item and a file stream for its content."""
249
item = tarfile.TarInfo(pathjoin(root, dp).encode('utf8'))
250
# TODO: would be cool to actually set it to the timestamp of the
251
# revision it was last changed
253
fileobj = self._put_in_tar(item, tree)
257
"""Return true if the object this entry represents has textual data.
259
Note that textual data includes binary content.
261
Also note that all entries get weave files created for them.
262
This attribute is primarily used when upgrading from old trees that
263
did not have the weave index for all inventory entries.
267
def __init__(self, file_id, name, parent_id, text_id=None):
101
268
"""Create an InventoryEntry
103
270
The filename must be a single component, relative to the
104
271
parent directory; it cannot be a whole path or relative name.
106
>>> e = InventoryEntry('123', 'hello.c', 'file', ROOT_ID)
273
>>> e = InventoryFile('123', 'hello.c', ROOT_ID)
111
>>> e = InventoryEntry('123', 'src/hello.c', 'file', ROOT_ID)
278
>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
112
279
Traceback (most recent call last):
113
BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
280
InvalidEntryName: Invalid entry name: src/hello.c
282
assert isinstance(name, basestring), name
115
283
if '/' in name or '\\' in name:
116
raise BzrCheckError('InventoryEntry name %r is invalid' % name)
284
raise InvalidEntryName(name=name)
285
self.executable = False
118
287
self.text_sha1 = None
119
288
self.text_size = None
121
289
self.file_id = file_id
124
291
self.text_id = text_id
125
292
self.parent_id = parent_id
126
if kind == 'directory':
131
raise BzrError("unhandled entry kind %r" % kind)
293
self.symlink_target = None
295
def kind_character(self):
296
"""Return a short kind indicator useful for appending to names."""
297
raise BzrError('unknown kind %r' % self.kind)
299
known_kinds = ('file', 'directory', 'symlink')
301
def _put_in_tar(self, item, tree):
302
"""populate item for stashing in a tar, and return the content stream.
304
If no content is available, return None.
306
raise BzrError("don't know how to export {%s} of kind %r" %
307
(self.file_id, self.kind))
309
def put_on_disk(self, dest, dp, tree):
310
"""Create a representation of self on disk in the prefix dest.
312
This is a template method - implement _put_on_disk in subclasses.
314
fullpath = pathjoin(dest, dp)
315
self._put_on_disk(fullpath, tree)
316
# mutter(" export {%s} kind %s to %s", self.file_id,
317
# self.kind, fullpath)
319
def _put_on_disk(self, fullpath, tree):
320
"""Put this entry onto disk at fullpath, from tree tree."""
321
raise BzrError("don't know how to export {%s} of kind %r" % (self.file_id, self.kind))
135
323
def sorted_children(self):
136
l = self.children.items()
324
return sorted(self.children.items())
327
def versionable_kind(kind):
328
return (kind in ('file', 'directory', 'symlink'))
330
def check(self, checker, rev_id, inv, tree):
331
"""Check this inventory entry is intact.
333
This is a template method, override _check for kind specific
336
:param checker: Check object providing context for the checks;
337
can be used to find out what parts of the repository have already
339
:param rev_id: Revision id from which this InventoryEntry was loaded.
340
Not necessarily the last-changed revision for this file.
341
:param inv: Inventory from which the entry was loaded.
342
:param tree: RevisionTree for this entry.
344
if self.parent_id is not None:
345
if not inv.has_id(self.parent_id):
346
raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
347
% (self.parent_id, rev_id))
348
self._check(checker, rev_id, tree)
350
def _check(self, checker, rev_id, tree):
351
"""Check this inventory entry for kind specific errors."""
352
raise BzrCheckError('unknown entry kind %r in revision {%s}' %
142
other = InventoryEntry(self.file_id, self.name, self.kind,
143
self.parent_id, text_id=self.text_id)
144
other.text_sha1 = self.text_sha1
145
other.text_size = self.text_size
146
# note that children are *not* copied; they're pulled across when
356
"""Clone this inventory entry."""
357
raise NotImplementedError
360
def describe_change(old_entry, new_entry):
361
"""Describe the change between old_entry and this.
363
This smells of being an InterInventoryEntry situation, but as its
364
the first one, we're making it a static method for now.
366
An entry with a different parent, or different name is considered
367
to be renamed. Reparenting is an internal detail.
368
Note that renaming the parent does not trigger a rename for the
371
# TODO: Perhaps return an object rather than just a string
372
if old_entry is new_entry:
373
# also the case of both being None
375
elif old_entry is None:
377
elif new_entry is None:
379
text_modified, meta_modified = new_entry.detect_changes(old_entry)
380
if text_modified or meta_modified:
384
# TODO 20060511 (mbp, rbc) factor out 'detect_rename' here.
385
if old_entry.parent_id != new_entry.parent_id:
387
elif old_entry.name != new_entry.name:
391
if renamed and not modified:
392
return InventoryEntry.RENAMED
393
if modified and not renamed:
395
if modified and renamed:
396
return InventoryEntry.MODIFIED_AND_RENAMED
151
399
def __repr__(self):
152
return ("%s(%r, %r, kind=%r, parent_id=%r)"
400
return ("%s(%r, %r, parent_id=%r, revision=%r)"
153
401
% (self.__class__.__name__,
160
def to_element(self):
161
"""Convert to XML element"""
162
from bzrlib.xml import Element
166
e.set('name', self.name)
167
e.set('file_id', self.file_id)
168
e.set('kind', self.kind)
170
if self.text_size != None:
171
e.set('text_size', '%d' % self.text_size)
173
for f in ['text_id', 'text_sha1']:
178
# to be conservative, we don't externalize the root pointers
179
# for now, leaving them as null in the xml form. in a future
180
# version it will be implied by nested elements.
181
if self.parent_id != ROOT_ID:
182
assert isinstance(self.parent_id, basestring)
183
e.set('parent_id', self.parent_id)
190
def from_element(cls, elt):
191
assert elt.tag == 'entry'
193
## original format inventories don't have a parent_id for
194
## nodes in the root directory, but it's cleaner to use one
196
parent_id = elt.get('parent_id')
197
if parent_id == None:
200
self = cls(elt.get('file_id'), elt.get('name'), elt.get('kind'), parent_id)
201
self.text_id = elt.get('text_id')
202
self.text_sha1 = elt.get('text_sha1')
204
## mutter("read inventoryentry: %r" % (elt.attrib))
206
v = elt.get('text_size')
207
self.text_size = v and int(v)
212
from_element = classmethod(from_element)
407
def snapshot(self, revision, path, previous_entries,
408
work_tree, commit_builder):
409
"""Make a snapshot of this entry which may or may not have changed.
411
This means that all its fields are populated, that it has its
412
text stored in the text store or weave.
414
# mutter('new parents of %s are %r', path, previous_entries)
415
self._read_tree_state(path, work_tree)
416
# TODO: Where should we determine whether to reuse a
417
# previous revision id or create a new revision? 20060606
418
if len(previous_entries) == 1:
419
# cannot be unchanged unless there is only one parent file rev.
420
parent_ie = previous_entries.values()[0]
421
if self._unchanged(parent_ie):
422
# mutter("found unchanged entry")
423
self.revision = parent_ie.revision
425
return self._snapshot_into_revision(revision, previous_entries,
426
work_tree, commit_builder)
428
def _snapshot_into_revision(self, revision, previous_entries, work_tree,
430
"""Record this revision unconditionally into a store.
432
The entry's last-changed revision property (`revision`) is updated to
433
that of the new revision.
435
:param revision: id of the new revision that is being recorded.
437
:returns: String description of the commit (e.g. "merged", "modified"), etc.
439
# mutter('new revision {%s} for {%s}', revision, self.file_id)
440
self.revision = revision
441
self._snapshot_text(previous_entries, work_tree, commit_builder)
443
def _snapshot_text(self, file_parents, work_tree, commit_builder):
444
"""Record the 'text' of this entry, whatever form that takes.
446
This default implementation simply adds an empty text.
448
raise NotImplementedError(self._snapshot_text)
214
450
def __eq__(self, other):
215
451
if not isinstance(other, InventoryEntry):
216
452
return NotImplemented
218
return (self.file_id == other.file_id) \
219
and (self.name == other.name) \
220
and (self.text_sha1 == other.text_sha1) \
221
and (self.text_size == other.text_size) \
222
and (self.text_id == other.text_id) \
223
and (self.parent_id == other.parent_id) \
224
and (self.kind == other.kind)
454
return ((self.file_id == other.file_id)
455
and (self.name == other.name)
456
and (other.symlink_target == self.symlink_target)
457
and (self.text_sha1 == other.text_sha1)
458
and (self.text_size == other.text_size)
459
and (self.text_id == other.text_id)
460
and (self.parent_id == other.parent_id)
461
and (self.kind == other.kind)
462
and (self.revision == other.revision)
463
and (self.executable == other.executable)
227
466
def __ne__(self, other):
228
467
return not (self == other)
248
526
and (self.children == other.children)
529
class InventoryDirectory(InventoryEntry):
530
"""A directory in an inventory."""
532
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
533
'text_id', 'parent_id', 'children', 'executable',
534
'revision', 'symlink_target']
536
def _check(self, checker, rev_id, tree):
537
"""See InventoryEntry._check"""
538
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
539
raise BzrCheckError('directory {%s} has text in revision {%s}'
540
% (self.file_id, rev_id))
543
other = InventoryDirectory(self.file_id, self.name, self.parent_id)
544
other.revision = self.revision
545
# note that children are *not* copied; they're pulled across when
549
def __init__(self, file_id, name, parent_id):
550
super(InventoryDirectory, self).__init__(file_id, name, parent_id)
552
self.kind = 'directory'
554
def kind_character(self):
555
"""See InventoryEntry.kind_character."""
558
def _put_in_tar(self, item, tree):
559
"""See InventoryEntry._put_in_tar."""
560
item.type = tarfile.DIRTYPE
567
def _put_on_disk(self, fullpath, tree):
568
"""See InventoryEntry._put_on_disk."""
571
def _snapshot_text(self, file_parents, work_tree, commit_builder):
572
"""See InventoryEntry._snapshot_text."""
573
commit_builder.modified_directory(self.file_id, file_parents)
576
class InventoryFile(InventoryEntry):
577
"""A file in an inventory."""
579
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
580
'text_id', 'parent_id', 'children', 'executable',
581
'revision', 'symlink_target']
583
def _check(self, checker, tree_revision_id, tree):
584
"""See InventoryEntry._check"""
585
t = (self.file_id, self.revision)
586
if t in checker.checked_texts:
587
prev_sha = checker.checked_texts[t]
588
if prev_sha != self.text_sha1:
589
raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
590
(self.file_id, tree_revision_id))
592
checker.repeated_text_cnt += 1
595
if self.file_id not in checker.checked_weaves:
596
mutter('check weave {%s}', self.file_id)
597
w = tree.get_weave(self.file_id)
598
# Not passing a progress bar, because it creates a new
599
# progress, which overwrites the current progress,
600
# and doesn't look nice
602
checker.checked_weaves[self.file_id] = True
604
w = tree.get_weave(self.file_id)
606
mutter('check version {%s} of {%s}', tree_revision_id, self.file_id)
607
checker.checked_text_cnt += 1
608
# We can't check the length, because Weave doesn't store that
609
# information, and the whole point of looking at the weave's
610
# sha1sum is that we don't have to extract the text.
611
if self.text_sha1 != w.get_sha1(self.revision):
612
raise BzrCheckError('text {%s} version {%s} wrong sha1'
613
% (self.file_id, self.revision))
614
checker.checked_texts[t] = self.text_sha1
617
other = InventoryFile(self.file_id, self.name, self.parent_id)
618
other.executable = self.executable
619
other.text_id = self.text_id
620
other.text_sha1 = self.text_sha1
621
other.text_size = self.text_size
622
other.revision = self.revision
625
def detect_changes(self, old_entry):
626
"""See InventoryEntry.detect_changes."""
627
assert self.text_sha1 is not None
628
assert old_entry.text_sha1 is not None
629
text_modified = (self.text_sha1 != old_entry.text_sha1)
630
meta_modified = (self.executable != old_entry.executable)
631
return text_modified, meta_modified
633
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
634
output_to, reverse=False):
635
"""See InventoryEntry._diff."""
637
from_text = tree.get_file(self.file_id).readlines()
639
to_text = to_tree.get_file(to_entry.file_id).readlines()
643
text_diff(from_label, from_text,
644
to_label, to_text, output_to)
646
text_diff(to_label, to_text,
647
from_label, from_text, output_to)
650
label_pair = (to_label, from_label)
652
label_pair = (from_label, to_label)
653
print >> output_to, "Binary files %s and %s differ" % label_pair
656
"""See InventoryEntry.has_text."""
659
def __init__(self, file_id, name, parent_id):
660
super(InventoryFile, self).__init__(file_id, name, parent_id)
663
def kind_character(self):
664
"""See InventoryEntry.kind_character."""
667
def _put_in_tar(self, item, tree):
668
"""See InventoryEntry._put_in_tar."""
669
item.type = tarfile.REGTYPE
670
fileobj = tree.get_file(self.file_id)
671
item.size = self.text_size
672
if tree.is_executable(self.file_id):
678
def _put_on_disk(self, fullpath, tree):
679
"""See InventoryEntry._put_on_disk."""
680
pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
681
if tree.is_executable(self.file_id):
682
os.chmod(fullpath, 0755)
684
def _read_tree_state(self, path, work_tree):
685
"""See InventoryEntry._read_tree_state."""
686
self.text_sha1 = work_tree.get_file_sha1(self.file_id, path=path)
687
# FIXME: 20050930 probe for the text size when getting sha1
688
# in _read_tree_state
689
self.executable = work_tree.is_executable(self.file_id, path=path)
692
return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s)"
693
% (self.__class__.__name__,
700
def _forget_tree_state(self):
701
self.text_sha1 = None
703
def _snapshot_text(self, file_parents, work_tree, commit_builder):
704
"""See InventoryEntry._snapshot_text."""
705
def get_content_byte_lines():
706
return work_tree.get_file(self.file_id).readlines()
707
self.text_sha1, self.text_size = commit_builder.modified_file_text(
708
self.file_id, file_parents, get_content_byte_lines, self.text_sha1, self.text_size)
710
def _unchanged(self, previous_ie):
711
"""See InventoryEntry._unchanged."""
712
compatible = super(InventoryFile, self)._unchanged(previous_ie)
713
if self.text_sha1 != previous_ie.text_sha1:
716
# FIXME: 20050930 probe for the text size when getting sha1
717
# in _read_tree_state
718
self.text_size = previous_ie.text_size
719
if self.executable != previous_ie.executable:
724
class InventoryLink(InventoryEntry):
725
"""A file in an inventory."""
727
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
728
'text_id', 'parent_id', 'children', 'executable',
729
'revision', 'symlink_target']
731
def _check(self, checker, rev_id, tree):
732
"""See InventoryEntry._check"""
733
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
734
raise BzrCheckError('symlink {%s} has text in revision {%s}'
735
% (self.file_id, rev_id))
736
if self.symlink_target is None:
737
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
738
% (self.file_id, rev_id))
741
other = InventoryLink(self.file_id, self.name, self.parent_id)
742
other.symlink_target = self.symlink_target
743
other.revision = self.revision
746
def detect_changes(self, old_entry):
747
"""See InventoryEntry.detect_changes."""
748
# FIXME: which _modified field should we use ? RBC 20051003
749
text_modified = (self.symlink_target != old_entry.symlink_target)
751
mutter(" symlink target changed")
752
meta_modified = False
753
return text_modified, meta_modified
755
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
756
output_to, reverse=False):
757
"""See InventoryEntry._diff."""
758
from_text = self.symlink_target
759
if to_entry is not None:
760
to_text = to_entry.symlink_target
765
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
768
print >>output_to, '=== target was %r' % self.symlink_target
770
print >>output_to, '=== target is %r' % self.symlink_target
772
def __init__(self, file_id, name, parent_id):
773
super(InventoryLink, self).__init__(file_id, name, parent_id)
774
self.kind = 'symlink'
776
def kind_character(self):
777
"""See InventoryEntry.kind_character."""
780
def _put_in_tar(self, item, tree):
781
"""See InventoryEntry._put_in_tar."""
782
item.type = tarfile.SYMTYPE
786
item.linkname = self.symlink_target
789
def _put_on_disk(self, fullpath, tree):
790
"""See InventoryEntry._put_on_disk."""
792
os.symlink(self.symlink_target, fullpath)
794
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
796
def _read_tree_state(self, path, work_tree):
797
"""See InventoryEntry._read_tree_state."""
798
self.symlink_target = work_tree.get_symlink_target(self.file_id)
800
def _forget_tree_state(self):
801
self.symlink_target = None
803
def _unchanged(self, previous_ie):
804
"""See InventoryEntry._unchanged."""
805
compatible = super(InventoryLink, self)._unchanged(previous_ie)
806
if self.symlink_target != previous_ie.symlink_target:
810
def _snapshot_text(self, file_parents, work_tree, commit_builder):
811
"""See InventoryEntry._snapshot_text."""
812
commit_builder.modified_link(
813
self.file_id, file_parents, self.symlink_target)
252
816
class Inventory(object):
253
817
"""Inventory of versioned files in a tree.
295
864
The inventory is created with a default root directory, with
298
# We are letting Branch(init=True) create a unique inventory
299
# root id. Rather than generating a random one here.
301
# root_id = bzrlib.branch.gen_file_id('TREE_ROOT')
302
self.root = RootEntry(root_id)
867
if root_id is not None:
868
self._set_root(InventoryDirectory(root_id, '', None))
872
self.revision_id = revision_id
874
def _set_root(self, ie):
303
876
self._byid = {self.root.file_id: self.root}
879
# TODO: jam 20051218 Should copy also copy the revision_id?
880
entries = self.iter_entries()
881
other = Inventory(entries.next()[1].file_id)
882
# copy recursively so we know directories will be added before
883
# their children. There are more efficient ways than this...
884
for path, entry in entries():
885
other.add(entry.copy())
306
888
def __iter__(self):
307
889
return iter(self._byid)
310
891
def __len__(self):
311
892
"""Returns number of entries."""
312
893
return len(self._byid)
315
895
def iter_entries(self, from_dir=None):
316
896
"""Return (path, entry) pairs, in order by name."""
320
elif isinstance(from_dir, basestring):
321
from_dir = self._byid[from_dir]
323
kids = from_dir.children.items()
325
for name, ie in kids:
327
if ie.kind == 'directory':
328
for cn, cie in self.iter_entries(from_dir=ie.file_id):
329
yield os.path.join(name, cn), cie
898
if self.root is None:
902
elif isinstance(from_dir, basestring):
903
from_dir = self._byid[from_dir]
905
# unrolling the recursive called changed the time from
906
# 440ms/663ms (inline/total) to 116ms/116ms
907
children = from_dir.children.items()
909
children = collections.deque(children)
910
stack = [(u'', children)]
912
from_dir_relpath, children = stack[-1]
915
name, ie = children.popleft()
917
# we know that from_dir_relpath never ends in a slash
918
# and 'f' doesn't begin with one, we can do a string op, rather
919
# than the checks of pathjoin(), though this means that all paths
921
path = from_dir_relpath + '/' + name
925
if ie.kind != 'directory':
928
# But do this child first
929
new_children = ie.children.items()
931
new_children = collections.deque(new_children)
932
stack.append((path, new_children))
933
# Break out of inner loop, so that we start outer loop with child
936
# if we finished all children, pop it off the stack
939
def iter_entries_by_dir(self, from_dir=None):
940
"""Iterate over the entries in a directory first order.
942
This returns all entries for a directory before returning
943
the entries for children of a directory. This is not
944
lexicographically sorted order, and is a hybrid between
945
depth-first and breadth-first.
947
:return: This yields (path, entry) pairs
949
# TODO? Perhaps this should return the from_dir so that the root is
950
# yielded? or maybe an option?
952
if self.root is None:
956
elif isinstance(from_dir, basestring):
957
from_dir = self._byid[from_dir]
959
stack = [(u'', from_dir)]
961
cur_relpath, cur_dir = stack.pop()
964
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
966
child_relpath = cur_relpath + child_name
968
yield child_relpath, child_ie
970
if child_ie.kind == 'directory':
971
child_dirs.append((child_relpath+'/', child_ie))
972
stack.extend(reversed(child_dirs))
332
974
def entries(self):
333
975
"""Return list of (path, ie) for all entries except the root.
361
1002
for name, child_ie in kids:
362
child_path = os.path.join(parent_path, name)
1003
child_path = pathjoin(parent_path, name)
363
1004
descend(child_ie, child_path)
364
descend(self.root, '')
1005
descend(self.root, u'')
369
1008
def __contains__(self, file_id):
370
1009
"""True if this entry contains a file with given id.
372
1011
>>> inv = Inventory()
373
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
1012
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1013
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
374
1014
>>> '123' in inv
376
1016
>>> '456' in inv
379
return file_id in self._byid
1019
return (file_id in self._byid)
382
1021
def __getitem__(self, file_id):
383
1022
"""Return the entry for given file_id.
385
1024
>>> inv = Inventory()
386
>>> inv.add(InventoryEntry('123123', 'hello.c', 'file', ROOT_ID))
1025
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
1026
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT', sha1=None, len=None)
387
1027
>>> inv['123123'].name
391
1031
return self._byid[file_id]
392
1032
except KeyError:
394
1034
raise BzrError("can't look up file_id None")
396
1036
raise BzrError("file_id {%s} not in inventory" % file_id)
399
1038
def get_file_kind(self, file_id):
400
1039
return self._byid[file_id].kind
402
1041
def get_child(self, parent_id, filename):
403
1042
return self[parent_id].children.get(filename)
406
1044
def add(self, entry):
407
1045
"""Add entry to inventory.
409
1047
To add a file to a branch ready to be committed, use Branch.add,
1050
Returns the new entry object.
411
1052
if entry.file_id in self._byid:
412
1053
raise BzrError("inventory already contains entry with id {%s}" % entry.file_id)
414
if entry.parent_id == ROOT_ID or entry.parent_id is None:
415
entry.parent_id = self.root.file_id
1055
if entry.parent_id is None:
1056
assert self.root is None and len(self._byid) == 0
1057
self._set_root(entry)
418
1060
parent = self._byid[entry.parent_id]
419
1061
except KeyError:
420
1062
raise BzrError("parent_id {%s} not in inventory" % entry.parent_id)
422
if parent.children.has_key(entry.name):
1064
if entry.name in parent.children:
423
1065
raise BzrError("%s is already versioned" %
424
appendpath(self.id2path(parent.file_id), entry.name))
1066
pathjoin(self.id2path(parent.file_id), entry.name))
426
1068
self._byid[entry.file_id] = entry
427
1069
parent.children[entry.name] = entry
430
def add_path(self, relpath, kind, file_id=None):
1072
def add_path(self, relpath, kind, file_id=None, parent_id=None):
431
1073
"""Add entry from a path.
433
The immediate parent must already be versioned"""
434
from bzrlib.branch import gen_file_id
1075
The immediate parent must already be versioned.
1077
Returns the new entry object."""
436
parts = bzrlib.osutils.splitpath(relpath)
1079
parts = osutils.splitpath(relpath)
437
1081
if len(parts) == 0:
438
raise BzrError("cannot re-add root of inventory")
441
file_id = gen_file_id(relpath)
443
parent_path = parts[:-1]
444
parent_id = self.path2id(parent_path)
445
if parent_id == None:
446
raise NotVersionedError(parent_path)
448
ie = InventoryEntry(file_id, parts[-1],
449
kind=kind, parent_id=parent_id)
1083
file_id = bzrlib.workingtree.gen_root_id()
1084
self.root = InventoryDirectory(file_id, '', None)
1085
self._byid = {self.root.file_id: self.root}
1088
parent_path = parts[:-1]
1089
parent_id = self.path2id(parent_path)
1090
if parent_id is None:
1091
raise NotVersionedError(path=parent_path)
1092
ie = make_entry(kind, parts[-1], parent_id, file_id)
450
1093
return self.add(ie)
453
1095
def __delitem__(self, file_id):
454
1096
"""Remove entry by id.
456
1098
>>> inv = Inventory()
457
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
1099
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
1100
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT', sha1=None, len=None)
458
1101
>>> '123' in inv
460
1103
>>> del inv['123']
added
removed
bzrlib/inventory.py
