57
36
An InventoryEntry has the following fields, which are also
58
37
present in the XML inventory-entry element:
63
(within the parent directory)
66
file_id of the parent directory, or ROOT_ID
69
the revision_id in which this variation of this file was
73
Indicates that this file should be executable on systems
77
sha-1 of the text of the file
80
size in bytes of the text of the file
82
(reading a version 4 tree created a text_id field.)
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.
84
54
>>> i = Inventory()
87
>>> i.add(InventoryDirectory('123', 'src', ROOT_ID))
88
InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None)
89
>>> i.add(InventoryFile('2323', 'hello.c', parent_id='123'))
90
InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None)
91
>>> shouldbe = {0: '', 1: 'src', 2: 'src/hello.c'}
92
>>> for ix, j in enumerate(i.iter_entries()):
93
... print (j[0] == shouldbe[ix], j[1])
57
>>> i.add(InventoryEntry('123', 'src', 'directory', ROOT_ID))
58
InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT')
59
>>> i.add(InventoryEntry('2323', 'hello.c', 'file', parent_id='123'))
60
InventoryEntry('2323', 'hello.c', kind='file', parent_id='123')
61
>>> for j in i.iter_entries():
95
(True, InventoryDirectory('TREE_ROOT', '', parent_id=None, revision=None))
96
(True, InventoryDirectory('123', 'src', parent_id='TREE_ROOT', revision=None))
97
(True, InventoryFile('2323', 'hello.c', parent_id='123', sha1=None, len=None))
98
>>> i.add(InventoryFile('2323', 'bye.c', '123'))
64
('src', InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT'))
65
('src/hello.c', InventoryEntry('2323', 'hello.c', kind='file', parent_id='123'))
66
>>> i.add(InventoryEntry('2323', 'bye.c', 'file', '123'))
99
67
Traceback (most recent call last):
101
69
BzrError: inventory already contains entry with id {2323}
102
>>> i.add(InventoryFile('2324', 'bye.c', '123'))
103
InventoryFile('2324', 'bye.c', parent_id='123', sha1=None, len=None)
104
>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
105
InventoryDirectory('2325', 'wibble', parent_id='123', revision=None)
70
>>> i.add(InventoryEntry('2324', 'bye.c', 'file', '123'))
71
InventoryEntry('2324', 'bye.c', kind='file', parent_id='123')
72
>>> i.add(InventoryEntry('2325', 'wibble', 'directory', '123'))
73
InventoryEntry('2325', 'wibble', kind='directory', parent_id='123')
106
74
>>> i.path2id('src/wibble')
110
>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
111
InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
78
>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
79
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
113
InventoryFile('2326', 'wibble.c', parent_id='2325', sha1=None, len=None)
114
>>> for path, entry in i.iter_entries():
116
... assert i.path2id(path)
81
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
82
>>> for j in i.iter_entries():
84
... assert i.path2id(j[0])
123
90
src/wibble/wibble.c
124
91
>>> i.id2path('2326')
125
92
'src/wibble/wibble.c'
94
TODO: Maybe also keep the full path of the entry, and the children?
95
But those depend on its position within a particular inventory, and
96
it would be nice not to need to hold the backpointer here.
128
# Constants returned by describe_change()
130
# TODO: These should probably move to some kind of FileChangeDescription
131
# class; that's like what's inside a TreeDelta but we want to be able to
132
# generate them just for one file at a time.
134
MODIFIED_AND_RENAMED = 'modified and renamed'
138
def detect_changes(self, old_entry):
139
"""Return a (text_modified, meta_modified) from this to old_entry.
141
_read_tree_state must have been called on self and old_entry prior to
142
calling detect_changes.
146
def diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
147
output_to, reverse=False):
148
"""Perform a diff from this to to_entry.
150
text_diff will be used for textual difference calculation.
151
This is a template method, override _diff in child classes.
153
self._read_tree_state(tree.id2path(self.file_id), tree)
155
# cannot diff from one kind to another - you must do a removal
156
# and an addif they do not match.
157
assert self.kind == to_entry.kind
158
to_entry._read_tree_state(to_tree.id2path(to_entry.file_id),
160
self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
163
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
164
output_to, reverse=False):
165
"""Perform a diff between two entries of the same kind."""
167
def find_previous_heads(self, previous_inventories,
168
versioned_file_store,
171
"""Return the revisions and entries that directly precede this.
173
Returned as a map from revision to inventory entry.
175
This is a map containing the file revisions in all parents
176
for which the file exists, and its revision is not a parent of
177
any other. If the file is new, the set will be empty.
179
:param versioned_file_store: A store where ancestry data on this
180
file id can be queried.
181
:param transaction: The transaction that queries to the versioned
182
file store should be completed under.
183
:param entry_vf: The entry versioned file, if its already available.
185
def get_ancestors(weave, entry):
186
return set(weave.get_ancestry(entry.revision))
187
# revision:ie mapping for each ie found in previous_inventories.
189
# revision:ie mapping with one revision for each head.
191
# revision: ancestor list for each head
193
# identify candidate head revision ids.
194
for inv in previous_inventories:
195
if self.file_id in inv:
196
ie = inv[self.file_id]
197
assert ie.file_id == self.file_id
198
if ie.revision in candidates:
199
# same revision value in two different inventories:
200
# correct possible inconsistencies:
201
# * there was a bug in revision updates with 'x' bit
204
if candidates[ie.revision].executable != ie.executable:
205
candidates[ie.revision].executable = False
206
ie.executable = False
207
except AttributeError:
209
# must now be the same.
210
assert candidates[ie.revision] == ie
212
# add this revision as a candidate.
213
candidates[ie.revision] = ie
215
# common case optimisation
216
if len(candidates) == 1:
217
# if there is only one candidate revision found
218
# then we can opening the versioned file to access ancestry:
219
# there cannot be any ancestors to eliminate when there is
220
# only one revision available.
221
heads[ie.revision] = ie
224
# eliminate ancestors amongst the available candidates:
225
# heads are those that are not an ancestor of any other candidate
226
# - this provides convergence at a per-file level.
227
for ie in candidates.values():
228
# may be an ancestor of a known head:
229
already_present = 0 != len(
230
[head for head in heads
231
if ie.revision in head_ancestors[head]])
233
# an ancestor of an analyzed candidate.
235
# not an ancestor of a known head:
236
# load the versioned file for this file id if needed
238
entry_vf = versioned_file_store.get_weave_or_empty(
239
self.file_id, transaction)
240
ancestors = get_ancestors(entry_vf, ie)
241
# may knock something else out:
242
check_heads = list(heads.keys())
243
for head in check_heads:
244
if head in ancestors:
245
# this previously discovered 'head' is not
246
# really a head - its an ancestor of the newly
249
head_ancestors[ie.revision] = ancestors
250
heads[ie.revision] = ie
253
def get_tar_item(self, root, dp, now, tree):
254
"""Get a tarfile item and a file stream for its content."""
255
item = tarfile.TarInfo(osutils.pathjoin(root, dp).encode('utf8'))
256
# TODO: would be cool to actually set it to the timestamp of the
257
# revision it was last changed
259
fileobj = self._put_in_tar(item, tree)
263
"""Return true if the object this entry represents has textual data.
265
Note that textual data includes binary content.
267
Also note that all entries get weave files created for them.
268
This attribute is primarily used when upgrading from old trees that
269
did not have the weave index for all inventory entries.
273
def __init__(self, file_id, name, parent_id, text_id=None):
99
# TODO: split InventoryEntry into subclasses for files,
100
# directories, etc etc.
102
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
103
'text_id', 'parent_id', 'children', ]
105
def __init__(self, file_id, name, kind, parent_id, text_id=None):
274
106
"""Create an InventoryEntry
276
108
The filename must be a single component, relative to the
277
109
parent directory; it cannot be a whole path or relative name.
279
>>> e = InventoryFile('123', 'hello.c', ROOT_ID)
111
>>> e = InventoryEntry('123', 'hello.c', 'file', ROOT_ID)
284
>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
116
>>> e = InventoryEntry('123', 'src/hello.c', 'file', ROOT_ID)
285
117
Traceback (most recent call last):
286
InvalidEntryName: Invalid entry name: src/hello.c
118
BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
288
assert isinstance(name, basestring), name
289
120
if '/' in name or '\\' in name:
290
raise errors.InvalidEntryName(name=name)
291
self.executable = False
121
raise BzrCheckError('InventoryEntry name %r is invalid' % name)
293
123
self.text_sha1 = None
294
124
self.text_size = None
295
126
self.file_id = file_id
297
129
self.text_id = text_id
298
130
self.parent_id = parent_id
299
self.symlink_target = None
301
def kind_character(self):
302
"""Return a short kind indicator useful for appending to names."""
303
raise BzrError('unknown kind %r' % self.kind)
305
known_kinds = ('file', 'directory', 'symlink')
307
def _put_in_tar(self, item, tree):
308
"""populate item for stashing in a tar, and return the content stream.
310
If no content is available, return None.
312
raise BzrError("don't know how to export {%s} of kind %r" %
313
(self.file_id, self.kind))
315
def put_on_disk(self, dest, dp, tree):
316
"""Create a representation of self on disk in the prefix dest.
318
This is a template method - implement _put_on_disk in subclasses.
320
fullpath = osutils.pathjoin(dest, dp)
321
self._put_on_disk(fullpath, tree)
322
# mutter(" export {%s} kind %s to %s", self.file_id,
323
# self.kind, fullpath)
325
def _put_on_disk(self, fullpath, tree):
326
"""Put this entry onto disk at fullpath, from tree tree."""
327
raise BzrError("don't know how to export {%s} of kind %r" % (self.file_id, self.kind))
131
if kind == 'directory':
136
raise BzrError("unhandled entry kind %r" % kind)
329
140
def sorted_children(self):
330
return sorted(self.children.items())
333
def versionable_kind(kind):
334
return (kind in ('file', 'directory', 'symlink'))
336
def check(self, checker, rev_id, inv, tree):
337
"""Check this inventory entry is intact.
339
This is a template method, override _check for kind specific
342
:param checker: Check object providing context for the checks;
343
can be used to find out what parts of the repository have already
345
:param rev_id: Revision id from which this InventoryEntry was loaded.
346
Not necessarily the last-changed revision for this file.
347
:param inv: Inventory from which the entry was loaded.
348
:param tree: RevisionTree for this entry.
350
if self.parent_id is not None:
351
if not inv.has_id(self.parent_id):
352
raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
353
% (self.parent_id, rev_id))
354
self._check(checker, rev_id, tree)
356
def _check(self, checker, rev_id, tree):
357
"""Check this inventory entry for kind specific errors."""
358
raise BzrCheckError('unknown entry kind %r in revision {%s}' %
141
l = self.children.items()
362
"""Clone this inventory entry."""
363
raise NotImplementedError
366
def describe_change(old_entry, new_entry):
367
"""Describe the change between old_entry and this.
369
This smells of being an InterInventoryEntry situation, but as its
370
the first one, we're making it a static method for now.
372
An entry with a different parent, or different name is considered
373
to be renamed. Reparenting is an internal detail.
374
Note that renaming the parent does not trigger a rename for the
377
# TODO: Perhaps return an object rather than just a string
378
if old_entry is new_entry:
379
# also the case of both being None
381
elif old_entry is None:
383
elif new_entry is None:
385
text_modified, meta_modified = new_entry.detect_changes(old_entry)
386
if text_modified or meta_modified:
390
# TODO 20060511 (mbp, rbc) factor out 'detect_rename' here.
391
if old_entry.parent_id != new_entry.parent_id:
393
elif old_entry.name != new_entry.name:
397
if renamed and not modified:
398
return InventoryEntry.RENAMED
399
if modified and not renamed:
401
if modified and renamed:
402
return InventoryEntry.MODIFIED_AND_RENAMED
147
other = InventoryEntry(self.file_id, self.name, self.kind,
148
self.parent_id, text_id=self.text_id)
149
other.text_sha1 = self.text_sha1
150
other.text_size = self.text_size
151
# note that children are *not* copied; they're pulled across when
405
156
def __repr__(self):
406
return ("%s(%r, %r, parent_id=%r, revision=%r)"
157
return ("%s(%r, %r, kind=%r, parent_id=%r)"
407
158
% (self.__class__.__name__,
413
def snapshot(self, revision, path, previous_entries,
414
work_tree, commit_builder):
415
"""Make a snapshot of this entry which may or may not have changed.
417
This means that all its fields are populated, that it has its
418
text stored in the text store or weave.
420
# mutter('new parents of %s are %r', path, previous_entries)
421
self._read_tree_state(path, work_tree)
422
# TODO: Where should we determine whether to reuse a
423
# previous revision id or create a new revision? 20060606
424
if len(previous_entries) == 1:
425
# cannot be unchanged unless there is only one parent file rev.
426
parent_ie = previous_entries.values()[0]
427
if self._unchanged(parent_ie):
428
# mutter("found unchanged entry")
429
self.revision = parent_ie.revision
431
return self._snapshot_into_revision(revision, previous_entries,
432
work_tree, commit_builder)
434
def _snapshot_into_revision(self, revision, previous_entries, work_tree,
436
"""Record this revision unconditionally into a store.
438
The entry's last-changed revision property (`revision`) is updated to
439
that of the new revision.
441
:param revision: id of the new revision that is being recorded.
443
:returns: String description of the commit (e.g. "merged", "modified"), etc.
445
# mutter('new revision {%s} for {%s}', revision, self.file_id)
446
self.revision = revision
447
self._snapshot_text(previous_entries, work_tree, commit_builder)
449
def _snapshot_text(self, file_parents, work_tree, commit_builder):
450
"""Record the 'text' of this entry, whatever form that takes.
452
This default implementation simply adds an empty text.
454
raise NotImplementedError(self._snapshot_text)
165
def to_element(self):
166
"""Convert to XML element"""
167
from bzrlib.xml import Element
171
e.set('name', self.name)
172
e.set('file_id', self.file_id)
173
e.set('kind', self.kind)
175
if self.text_size != None:
176
e.set('text_size', '%d' % self.text_size)
178
for f in ['text_id', 'text_sha1']:
183
# to be conservative, we don't externalize the root pointers
184
# for now, leaving them as null in the xml form. in a future
185
# version it will be implied by nested elements.
186
if self.parent_id != ROOT_ID:
187
assert isinstance(self.parent_id, basestring)
188
e.set('parent_id', self.parent_id)
195
def from_element(cls, elt):
196
assert elt.tag == 'entry'
198
## original format inventories don't have a parent_id for
199
## nodes in the root directory, but it's cleaner to use one
201
parent_id = elt.get('parent_id')
202
if parent_id == None:
205
self = cls(elt.get('file_id'), elt.get('name'), elt.get('kind'), parent_id)
206
self.text_id = elt.get('text_id')
207
self.text_sha1 = elt.get('text_sha1')
209
## mutter("read inventoryentry: %r" % (elt.attrib))
211
v = elt.get('text_size')
212
self.text_size = v and int(v)
217
from_element = classmethod(from_element)
456
219
def __eq__(self, other):
457
220
if not isinstance(other, InventoryEntry):
458
221
return NotImplemented
460
return ((self.file_id == other.file_id)
461
and (self.name == other.name)
462
and (other.symlink_target == self.symlink_target)
463
and (self.text_sha1 == other.text_sha1)
464
and (self.text_size == other.text_size)
465
and (self.text_id == other.text_id)
466
and (self.parent_id == other.parent_id)
467
and (self.kind == other.kind)
468
and (self.revision == other.revision)
469
and (self.executable == other.executable)
223
return (self.file_id == other.file_id) \
224
and (self.name == other.name) \
225
and (self.text_sha1 == other.text_sha1) \
226
and (self.text_size == other.text_size) \
227
and (self.text_id == other.text_id) \
228
and (self.parent_id == other.parent_id) \
229
and (self.kind == other.kind)
472
232
def __ne__(self, other):
473
233
return not (self == other)
532
253
and (self.children == other.children)
535
class InventoryDirectory(InventoryEntry):
536
"""A directory in an inventory."""
538
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
539
'text_id', 'parent_id', 'children', 'executable',
540
'revision', 'symlink_target']
542
def _check(self, checker, rev_id, tree):
543
"""See InventoryEntry._check"""
544
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
545
raise BzrCheckError('directory {%s} has text in revision {%s}'
546
% (self.file_id, rev_id))
549
other = InventoryDirectory(self.file_id, self.name, self.parent_id)
550
other.revision = self.revision
551
# note that children are *not* copied; they're pulled across when
555
def __init__(self, file_id, name, parent_id):
556
super(InventoryDirectory, self).__init__(file_id, name, parent_id)
558
self.kind = 'directory'
560
def kind_character(self):
561
"""See InventoryEntry.kind_character."""
564
def _put_in_tar(self, item, tree):
565
"""See InventoryEntry._put_in_tar."""
566
item.type = tarfile.DIRTYPE
573
def _put_on_disk(self, fullpath, tree):
574
"""See InventoryEntry._put_on_disk."""
577
def _snapshot_text(self, file_parents, work_tree, commit_builder):
578
"""See InventoryEntry._snapshot_text."""
579
commit_builder.modified_directory(self.file_id, file_parents)
582
class InventoryFile(InventoryEntry):
583
"""A file in an inventory."""
585
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
586
'text_id', 'parent_id', 'children', 'executable',
587
'revision', 'symlink_target']
589
def _check(self, checker, tree_revision_id, tree):
590
"""See InventoryEntry._check"""
591
t = (self.file_id, self.revision)
592
if t in checker.checked_texts:
593
prev_sha = checker.checked_texts[t]
594
if prev_sha != self.text_sha1:
595
raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
596
(self.file_id, tree_revision_id))
598
checker.repeated_text_cnt += 1
601
if self.file_id not in checker.checked_weaves:
602
mutter('check weave {%s}', self.file_id)
603
w = tree.get_weave(self.file_id)
604
# Not passing a progress bar, because it creates a new
605
# progress, which overwrites the current progress,
606
# and doesn't look nice
608
checker.checked_weaves[self.file_id] = True
610
w = tree.get_weave(self.file_id)
612
mutter('check version {%s} of {%s}', tree_revision_id, self.file_id)
613
checker.checked_text_cnt += 1
614
# We can't check the length, because Weave doesn't store that
615
# information, and the whole point of looking at the weave's
616
# sha1sum is that we don't have to extract the text.
617
if self.text_sha1 != w.get_sha1(self.revision):
618
raise BzrCheckError('text {%s} version {%s} wrong sha1'
619
% (self.file_id, self.revision))
620
checker.checked_texts[t] = self.text_sha1
623
other = InventoryFile(self.file_id, self.name, self.parent_id)
624
other.executable = self.executable
625
other.text_id = self.text_id
626
other.text_sha1 = self.text_sha1
627
other.text_size = self.text_size
628
other.revision = self.revision
631
def detect_changes(self, old_entry):
632
"""See InventoryEntry.detect_changes."""
633
assert self.text_sha1 is not None
634
assert old_entry.text_sha1 is not None
635
text_modified = (self.text_sha1 != old_entry.text_sha1)
636
meta_modified = (self.executable != old_entry.executable)
637
return text_modified, meta_modified
639
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
640
output_to, reverse=False):
641
"""See InventoryEntry._diff."""
643
from_text = tree.get_file(self.file_id).readlines()
645
to_text = to_tree.get_file(to_entry.file_id).readlines()
649
text_diff(from_label, from_text,
650
to_label, to_text, output_to)
652
text_diff(to_label, to_text,
653
from_label, from_text, output_to)
654
except errors.BinaryFile:
656
label_pair = (to_label, from_label)
658
label_pair = (from_label, to_label)
659
print >> output_to, "Binary files %s and %s differ" % label_pair
662
"""See InventoryEntry.has_text."""
665
def __init__(self, file_id, name, parent_id):
666
super(InventoryFile, self).__init__(file_id, name, parent_id)
669
def kind_character(self):
670
"""See InventoryEntry.kind_character."""
673
def _put_in_tar(self, item, tree):
674
"""See InventoryEntry._put_in_tar."""
675
item.type = tarfile.REGTYPE
676
fileobj = tree.get_file(self.file_id)
677
item.size = self.text_size
678
if tree.is_executable(self.file_id):
684
def _put_on_disk(self, fullpath, tree):
685
"""See InventoryEntry._put_on_disk."""
686
osutils.pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
687
if tree.is_executable(self.file_id):
688
os.chmod(fullpath, 0755)
690
def _read_tree_state(self, path, work_tree):
691
"""See InventoryEntry._read_tree_state."""
692
self.text_sha1 = work_tree.get_file_sha1(self.file_id, path=path)
693
# FIXME: 20050930 probe for the text size when getting sha1
694
# in _read_tree_state
695
self.executable = work_tree.is_executable(self.file_id, path=path)
698
return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s)"
699
% (self.__class__.__name__,
706
def _forget_tree_state(self):
707
self.text_sha1 = None
709
def _snapshot_text(self, file_parents, work_tree, commit_builder):
710
"""See InventoryEntry._snapshot_text."""
711
def get_content_byte_lines():
712
return work_tree.get_file(self.file_id).readlines()
713
self.text_sha1, self.text_size = commit_builder.modified_file_text(
714
self.file_id, file_parents, get_content_byte_lines, self.text_sha1, self.text_size)
716
def _unchanged(self, previous_ie):
717
"""See InventoryEntry._unchanged."""
718
compatible = super(InventoryFile, self)._unchanged(previous_ie)
719
if self.text_sha1 != previous_ie.text_sha1:
722
# FIXME: 20050930 probe for the text size when getting sha1
723
# in _read_tree_state
724
self.text_size = previous_ie.text_size
725
if self.executable != previous_ie.executable:
730
class InventoryLink(InventoryEntry):
731
"""A file in an inventory."""
733
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
734
'text_id', 'parent_id', 'children', 'executable',
735
'revision', 'symlink_target']
737
def _check(self, checker, rev_id, tree):
738
"""See InventoryEntry._check"""
739
if self.text_sha1 is not None or self.text_size is not None or self.text_id is not None:
740
raise BzrCheckError('symlink {%s} has text in revision {%s}'
741
% (self.file_id, rev_id))
742
if self.symlink_target is None:
743
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
744
% (self.file_id, rev_id))
747
other = InventoryLink(self.file_id, self.name, self.parent_id)
748
other.symlink_target = self.symlink_target
749
other.revision = self.revision
752
def detect_changes(self, old_entry):
753
"""See InventoryEntry.detect_changes."""
754
# FIXME: which _modified field should we use ? RBC 20051003
755
text_modified = (self.symlink_target != old_entry.symlink_target)
757
mutter(" symlink target changed")
758
meta_modified = False
759
return text_modified, meta_modified
761
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
762
output_to, reverse=False):
763
"""See InventoryEntry._diff."""
764
from_text = self.symlink_target
765
if to_entry is not None:
766
to_text = to_entry.symlink_target
771
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
774
print >>output_to, '=== target was %r' % self.symlink_target
776
print >>output_to, '=== target is %r' % self.symlink_target
778
def __init__(self, file_id, name, parent_id):
779
super(InventoryLink, self).__init__(file_id, name, parent_id)
780
self.kind = 'symlink'
782
def kind_character(self):
783
"""See InventoryEntry.kind_character."""
786
def _put_in_tar(self, item, tree):
787
"""See InventoryEntry._put_in_tar."""
788
item.type = tarfile.SYMTYPE
792
item.linkname = self.symlink_target
795
def _put_on_disk(self, fullpath, tree):
796
"""See InventoryEntry._put_on_disk."""
798
os.symlink(self.symlink_target, fullpath)
800
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
802
def _read_tree_state(self, path, work_tree):
803
"""See InventoryEntry._read_tree_state."""
804
self.symlink_target = work_tree.get_symlink_target(self.file_id)
806
def _forget_tree_state(self):
807
self.symlink_target = None
809
def _unchanged(self, previous_ie):
810
"""See InventoryEntry._unchanged."""
811
compatible = super(InventoryLink, self)._unchanged(previous_ie)
812
if self.symlink_target != previous_ie.symlink_target:
816
def _snapshot_text(self, file_parents, work_tree, commit_builder):
817
"""See InventoryEntry._snapshot_text."""
818
commit_builder.modified_link(
819
self.file_id, file_parents, self.symlink_target)
822
257
class Inventory(object):
823
258
"""Inventory of versioned files in a tree.
870
302
The inventory is created with a default root directory, with
873
if root_id is not None:
874
self._set_root(InventoryDirectory(root_id, '', None))
878
self.revision_id = revision_id
880
def _set_root(self, ie):
305
# We are letting Branch(init=True) create a unique inventory
306
# root id. Rather than generating a random one here.
308
# root_id = bzrlib.branch.gen_file_id('TREE_ROOT')
309
self.root = RootEntry(root_id)
882
310
self._byid = {self.root.file_id: self.root}
885
# TODO: jam 20051218 Should copy also copy the revision_id?
886
entries = self.iter_entries()
887
other = Inventory(entries.next()[1].file_id)
888
# copy recursively so we know directories will be added before
889
# their children. There are more efficient ways than this...
890
for path, entry in entries():
891
other.add(entry.copy())
894
313
def __iter__(self):
895
314
return iter(self._byid)
897
317
def __len__(self):
898
318
"""Returns number of entries."""
899
319
return len(self._byid)
901
322
def iter_entries(self, from_dir=None):
902
323
"""Return (path, entry) pairs, in order by name."""
904
if self.root is None:
908
elif isinstance(from_dir, basestring):
909
from_dir = self._byid[from_dir]
911
# unrolling the recursive called changed the time from
912
# 440ms/663ms (inline/total) to 116ms/116ms
913
children = from_dir.children.items()
915
children = collections.deque(children)
916
stack = [(u'', children)]
918
from_dir_relpath, children = stack[-1]
921
name, ie = children.popleft()
923
# we know that from_dir_relpath never ends in a slash
924
# and 'f' doesn't begin with one, we can do a string op, rather
925
# than the checks of pathjoin(), though this means that all paths
927
path = from_dir_relpath + '/' + name
931
if ie.kind != 'directory':
934
# But do this child first
935
new_children = ie.children.items()
937
new_children = collections.deque(new_children)
938
stack.append((path, new_children))
939
# Break out of inner loop, so that we start outer loop with child
942
# if we finished all children, pop it off the stack
945
def iter_entries_by_dir(self, from_dir=None):
946
"""Iterate over the entries in a directory first order.
948
This returns all entries for a directory before returning
949
the entries for children of a directory. This is not
950
lexicographically sorted order, and is a hybrid between
951
depth-first and breadth-first.
953
:return: This yields (path, entry) pairs
955
# TODO? Perhaps this should return the from_dir so that the root is
956
# yielded? or maybe an option?
958
if self.root is None:
962
elif isinstance(from_dir, basestring):
963
from_dir = self._byid[from_dir]
965
stack = [(u'', from_dir)]
967
cur_relpath, cur_dir = stack.pop()
970
for child_name, child_ie in sorted(cur_dir.children.iteritems()):
972
child_relpath = cur_relpath + child_name
974
yield child_relpath, child_ie
976
if child_ie.kind == 'directory':
977
child_dirs.append((child_relpath+'/', child_ie))
978
stack.extend(reversed(child_dirs))
327
elif isinstance(from_dir, basestring):
328
from_dir = self._byid[from_dir]
330
kids = from_dir.children.items()
332
for name, ie in kids:
334
if ie.kind == 'directory':
335
for cn, cie in self.iter_entries(from_dir=ie.file_id):
336
yield os.path.join(name, cn), cie
980
339
def entries(self):
981
340
"""Return list of (path, ie) for all entries except the root.
added
removed
bzrlib/inventory.py
