36
48
An InventoryEntry has the following fields, which are also
37
49
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.
54
(within the parent directory)
57
file_id of the parent directory, or ROOT_ID
60
the revision_id in which this variation of this file was
64
Indicates that this file should be executable on systems
68
sha-1 of the text of the file
71
size in bytes of the text of the file
73
(reading a version 4 tree created a text_id field.)
54
75
>>> i = Inventory()
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():
78
>>> i.add(InventoryDirectory('123', 'src', ROOT_ID))
79
InventoryDirectory('123', 'src', parent_id='TREE_ROOT')
80
>>> i.add(InventoryFile('2323', 'hello.c', parent_id='123'))
81
InventoryFile('2323', 'hello.c', parent_id='123')
82
>>> shouldbe = {0: 'src', 1: os.path.join('src','hello.c')}
83
>>> for ix, j in enumerate(i.iter_entries()):
84
... print (j[0] == shouldbe[ix], j[1])
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'))
86
(True, InventoryDirectory('123', 'src', parent_id='TREE_ROOT'))
87
(True, InventoryFile('2323', 'hello.c', parent_id='123'))
88
>>> i.add(InventoryFile('2323', 'bye.c', '123'))
67
89
Traceback (most recent call last):
69
91
BzrError: inventory already contains entry with id {2323}
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')
92
>>> i.add(InventoryFile('2324', 'bye.c', '123'))
93
InventoryFile('2324', 'bye.c', parent_id='123')
94
>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
95
InventoryDirectory('2325', 'wibble', parent_id='123')
74
96
>>> i.path2id('src/wibble')
78
>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
79
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
100
>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
101
InventoryFile('2326', 'wibble.c', parent_id='2325')
81
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
82
>>> for j in i.iter_entries():
84
... assert i.path2id(j[0])
103
InventoryFile('2326', 'wibble.c', parent_id='2325')
104
>>> for path, entry in i.iter_entries():
105
... print path.replace('\\\\', '/') # for win32 os.sep
106
... assert i.path2id(path)
90
112
src/wibble/wibble.c
113
>>> i.id2path('2326').replace('\\\\', '/')
92
114
'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.
99
# TODO: split InventoryEntry into subclasses for files,
100
# directories, etc etc.
102
117
__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):
118
'text_id', 'parent_id', 'children', 'executable',
121
def _add_text_to_weave(self, new_lines, parents, weave_store, transaction):
122
weave_store.add_text(self.file_id, self.revision, new_lines, parents,
125
def detect_changes(self, old_entry):
126
"""Return a (text_modified, meta_modified) from this to old_entry.
128
_read_tree_state must have been called on self and old_entry prior to
129
calling detect_changes.
133
def diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
134
output_to, reverse=False):
135
"""Perform a diff from this to to_entry.
137
text_diff will be used for textual difference calculation.
138
This is a template method, override _diff in child classes.
140
self._read_tree_state(tree.id2path(self.file_id), tree)
142
# cannot diff from one kind to another - you must do a removal
143
# and an addif they do not match.
144
assert self.kind == to_entry.kind
145
to_entry._read_tree_state(to_tree.id2path(to_entry.file_id),
147
self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
150
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
151
output_to, reverse=False):
152
"""Perform a diff between two entries of the same kind."""
154
def find_previous_heads(self, previous_inventories, entry_weave):
155
"""Return the revisions and entries that directly preceed this.
157
Returned as a map from revision to inventory entry.
159
This is a map containing the file revisions in all parents
160
for which the file exists, and its revision is not a parent of
161
any other. If the file is new, the set will be empty.
163
def get_ancestors(weave, entry):
164
return set(map(weave.idx_to_name,
165
weave.inclusions([weave.lookup(entry.revision)])))
168
for inv in previous_inventories:
169
if self.file_id in inv:
170
ie = inv[self.file_id]
171
assert ie.file_id == self.file_id
172
if ie.revision in heads:
173
# fixup logic, there was a bug in revision updates.
174
# with x bit support.
176
if heads[ie.revision].executable != ie.executable:
177
heads[ie.revision].executable = False
178
ie.executable = False
179
except AttributeError:
181
assert heads[ie.revision] == ie
183
# may want to add it.
184
# may already be covered:
185
already_present = 0 != len(
186
[head for head in heads
187
if ie.revision in head_ancestors[head]])
189
# an ancestor of a known head.
192
ancestors = get_ancestors(entry_weave, ie)
193
# may knock something else out:
194
check_heads = list(heads.keys())
195
for head in check_heads:
196
if head in ancestors:
197
# this head is not really a head
199
head_ancestors[ie.revision] = ancestors
200
heads[ie.revision] = ie
203
def get_tar_item(self, root, dp, now, tree):
204
"""Get a tarfile item and a file stream for its content."""
205
item = tarfile.TarInfo(os.path.join(root, dp))
206
# TODO: would be cool to actually set it to the timestamp of the
207
# revision it was last changed
209
fileobj = self._put_in_tar(item, tree)
213
"""Return true if the object this entry represents has textual data.
215
Note that textual data includes binary content.
217
Also note that all entries get weave files created for them.
218
This attribute is primarily used when upgrading from old trees that
219
did not have the weave index for all inventory entries.
223
def __init__(self, file_id, name, parent_id, text_id=None):
106
224
"""Create an InventoryEntry
108
226
The filename must be a single component, relative to the
109
227
parent directory; it cannot be a whole path or relative name.
111
>>> e = InventoryEntry('123', 'hello.c', 'file', ROOT_ID)
229
>>> e = InventoryFile('123', 'hello.c', ROOT_ID)
116
>>> e = InventoryEntry('123', 'src/hello.c', 'file', ROOT_ID)
234
>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
117
235
Traceback (most recent call last):
118
BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
236
InvalidEntryName: Invalid entry name: src/hello.c
238
assert isinstance(name, basestring), name
120
239
if '/' in name or '\\' in name:
121
raise BzrCheckError('InventoryEntry name %r is invalid' % name)
240
raise InvalidEntryName(name=name)
241
self.executable = False
123
243
self.text_sha1 = None
124
244
self.text_size = None
126
245
self.file_id = file_id
129
247
self.text_id = text_id
130
248
self.parent_id = parent_id
131
if kind == 'directory':
136
raise BzrError("unhandled entry kind %r" % kind)
249
self.symlink_target = None
251
def kind_character(self):
252
"""Return a short kind indicator useful for appending to names."""
253
raise BzrError('unknown kind %r' % self.kind)
255
known_kinds = ('file', 'directory', 'symlink', 'root_directory')
257
def _put_in_tar(self, item, tree):
258
"""populate item for stashing in a tar, and return the content stream.
260
If no content is available, return None.
262
raise BzrError("don't know how to export {%s} of kind %r" %
263
(self.file_id, self.kind))
265
def put_on_disk(self, dest, dp, tree):
266
"""Create a representation of self on disk in the prefix dest.
268
This is a template method - implement _put_on_disk in subclasses.
270
fullpath = appendpath(dest, dp)
271
self._put_on_disk(fullpath, tree)
272
mutter(" export {%s} kind %s to %s", self.file_id,
275
def _put_on_disk(self, fullpath, tree):
276
"""Put this entry onto disk at fullpath, from tree tree."""
277
raise BzrError("don't know how to export {%s} of kind %r" % (self.file_id, self.kind))
140
279
def sorted_children(self):
141
280
l = self.children.items()
285
def versionable_kind(kind):
286
return kind in ('file', 'directory', 'symlink')
288
def check(self, checker, rev_id, inv, tree):
289
"""Check this inventory entry is intact.
291
This is a template method, override _check for kind specific
294
if self.parent_id != None:
295
if not inv.has_id(self.parent_id):
296
raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
297
% (self.parent_id, rev_id))
298
self._check(checker, rev_id, tree)
300
def _check(self, checker, rev_id, tree):
301
"""Check this inventory entry for kind specific errors."""
302
raise BzrCheckError('unknown entry kind %r in revision {%s}' %
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
307
"""Clone this inventory entry."""
308
raise NotImplementedError
310
def _get_snapshot_change(self, previous_entries):
311
if len(previous_entries) > 1:
313
elif len(previous_entries) == 0:
316
return 'modified/renamed/reparented'
156
318
def __repr__(self):
157
return ("%s(%r, %r, kind=%r, parent_id=%r)"
319
return ("%s(%r, %r, parent_id=%r)"
158
320
% (self.__class__.__name__,
325
def snapshot(self, revision, path, previous_entries,
326
work_tree, weave_store, transaction):
327
"""Make a snapshot of this entry which may or may not have changed.
329
This means that all its fields are populated, that it has its
330
text stored in the text store or weave.
332
mutter('new parents of %s are %r', path, previous_entries)
333
self._read_tree_state(path, work_tree)
334
if len(previous_entries) == 1:
335
# cannot be unchanged unless there is only one parent file rev.
336
parent_ie = previous_entries.values()[0]
337
if self._unchanged(parent_ie):
338
mutter("found unchanged entry")
339
self.revision = parent_ie.revision
341
return self.snapshot_revision(revision, previous_entries,
342
work_tree, weave_store, transaction)
344
def snapshot_revision(self, revision, previous_entries, work_tree,
345
weave_store, transaction):
346
"""Record this revision unconditionally."""
347
mutter('new revision for {%s}', self.file_id)
348
self.revision = revision
349
change = self._get_snapshot_change(previous_entries)
350
self._snapshot_text(previous_entries, work_tree, weave_store,
354
def _snapshot_text(self, file_parents, work_tree, weave_store, transaction):
355
"""Record the 'text' of this entry, whatever form that takes.
357
This default implementation simply adds an empty text.
359
mutter('storing file {%s} in revision {%s}',
360
self.file_id, self.revision)
361
self._add_text_to_weave([], file_parents, weave_store, transaction)
165
363
def __eq__(self, other):
166
364
if not isinstance(other, InventoryEntry):
167
365
return NotImplemented
169
return (self.file_id == other.file_id) \
170
and (self.name == other.name) \
171
and (self.text_sha1 == other.text_sha1) \
172
and (self.text_size == other.text_size) \
173
and (self.text_id == other.text_id) \
174
and (self.parent_id == other.parent_id) \
175
and (self.kind == other.kind)
367
return ((self.file_id == other.file_id)
368
and (self.name == other.name)
369
and (other.symlink_target == self.symlink_target)
370
and (self.text_sha1 == other.text_sha1)
371
and (self.text_size == other.text_size)
372
and (self.text_id == other.text_id)
373
and (self.parent_id == other.parent_id)
374
and (self.kind == other.kind)
375
and (self.revision == other.revision)
376
and (self.executable == other.executable)
178
379
def __ne__(self, other):
179
380
return not (self == other)
199
428
and (self.children == other.children)
431
class InventoryDirectory(InventoryEntry):
432
"""A directory in an inventory."""
434
def _check(self, checker, rev_id, tree):
435
"""See InventoryEntry._check"""
436
if self.text_sha1 != None or self.text_size != None or self.text_id != None:
437
raise BzrCheckError('directory {%s} has text in revision {%s}'
438
% (self.file_id, rev_id))
441
other = InventoryDirectory(self.file_id, self.name, self.parent_id)
442
other.revision = self.revision
443
# note that children are *not* copied; they're pulled across when
447
def __init__(self, file_id, name, parent_id):
448
super(InventoryDirectory, self).__init__(file_id, name, parent_id)
450
self.kind = 'directory'
452
def kind_character(self):
453
"""See InventoryEntry.kind_character."""
456
def _put_in_tar(self, item, tree):
457
"""See InventoryEntry._put_in_tar."""
458
item.type = tarfile.DIRTYPE
465
def _put_on_disk(self, fullpath, tree):
466
"""See InventoryEntry._put_on_disk."""
470
class InventoryFile(InventoryEntry):
471
"""A file in an inventory."""
473
def _check(self, checker, rev_id, tree):
474
"""See InventoryEntry._check"""
475
revision = self.revision
476
t = (self.file_id, revision)
477
if t in checker.checked_texts:
478
prev_sha = checker.checked_texts[t]
479
if prev_sha != self.text_sha1:
480
raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
481
(self.file_id, rev_id))
483
checker.repeated_text_cnt += 1
485
mutter('check version {%s} of {%s}', rev_id, self.file_id)
486
file_lines = tree.get_file_lines(self.file_id)
487
checker.checked_text_cnt += 1
488
if self.text_size != sum(map(len, file_lines)):
489
raise BzrCheckError('text {%s} wrong size' % self.text_id)
490
if self.text_sha1 != sha_strings(file_lines):
491
raise BzrCheckError('text {%s} wrong sha1' % self.text_id)
492
checker.checked_texts[t] = self.text_sha1
495
other = InventoryFile(self.file_id, self.name, self.parent_id)
496
other.executable = self.executable
497
other.text_id = self.text_id
498
other.text_sha1 = self.text_sha1
499
other.text_size = self.text_size
500
other.revision = self.revision
503
def detect_changes(self, old_entry):
504
"""See InventoryEntry.detect_changes."""
505
assert self.text_sha1 != None
506
assert old_entry.text_sha1 != None
507
text_modified = (self.text_sha1 != old_entry.text_sha1)
508
meta_modified = (self.executable != old_entry.executable)
509
return text_modified, meta_modified
511
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
512
output_to, reverse=False):
513
"""See InventoryEntry._diff."""
514
from_text = tree.get_file(self.file_id).readlines()
516
to_text = to_tree.get_file(to_entry.file_id).readlines()
520
text_diff(from_label, from_text,
521
to_label, to_text, output_to)
523
text_diff(to_label, to_text,
524
from_label, from_text, output_to)
527
"""See InventoryEntry.has_text."""
530
def __init__(self, file_id, name, parent_id):
531
super(InventoryFile, self).__init__(file_id, name, parent_id)
534
def kind_character(self):
535
"""See InventoryEntry.kind_character."""
538
def _put_in_tar(self, item, tree):
539
"""See InventoryEntry._put_in_tar."""
540
item.type = tarfile.REGTYPE
541
fileobj = tree.get_file(self.file_id)
542
item.size = self.text_size
543
if tree.is_executable(self.file_id):
549
def _put_on_disk(self, fullpath, tree):
550
"""See InventoryEntry._put_on_disk."""
551
pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
552
if tree.is_executable(self.file_id):
553
os.chmod(fullpath, 0755)
555
def _read_tree_state(self, path, work_tree):
556
"""See InventoryEntry._read_tree_state."""
557
self.text_sha1 = work_tree.get_file_sha1(self.file_id)
558
self.executable = work_tree.is_executable(self.file_id)
560
def _snapshot_text(self, file_parents, work_tree, weave_store, transaction):
561
"""See InventoryEntry._snapshot_text."""
562
mutter('storing file {%s} in revision {%s}',
563
self.file_id, self.revision)
564
# special case to avoid diffing on renames or
566
if (len(file_parents) == 1
567
and self.text_sha1 == file_parents.values()[0].text_sha1
568
and self.text_size == file_parents.values()[0].text_size):
569
previous_ie = file_parents.values()[0]
570
weave_store.add_identical_text(
571
self.file_id, previous_ie.revision,
572
self.revision, file_parents, transaction)
574
new_lines = work_tree.get_file(self.file_id).readlines()
575
self._add_text_to_weave(new_lines, file_parents, weave_store,
577
self.text_sha1 = sha_strings(new_lines)
578
self.text_size = sum(map(len, new_lines))
581
def _unchanged(self, previous_ie):
582
"""See InventoryEntry._unchanged."""
583
compatible = super(InventoryFile, self)._unchanged(previous_ie)
584
if self.text_sha1 != previous_ie.text_sha1:
587
# FIXME: 20050930 probe for the text size when getting sha1
588
# in _read_tree_state
589
self.text_size = previous_ie.text_size
590
if self.executable != previous_ie.executable:
595
class InventoryLink(InventoryEntry):
596
"""A file in an inventory."""
598
__slots__ = ['symlink_target']
600
def _check(self, checker, rev_id, tree):
601
"""See InventoryEntry._check"""
602
if self.text_sha1 != None or self.text_size != None or self.text_id != None:
603
raise BzrCheckError('symlink {%s} has text in revision {%s}'
604
% (self.file_id, rev_id))
605
if self.symlink_target == None:
606
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
607
% (self.file_id, rev_id))
610
other = InventoryLink(self.file_id, self.name, self.parent_id)
611
other.symlink_target = self.symlink_target
612
other.revision = self.revision
615
def detect_changes(self, old_entry):
616
"""See InventoryEntry.detect_changes."""
617
# FIXME: which _modified field should we use ? RBC 20051003
618
text_modified = (self.symlink_target != old_entry.symlink_target)
620
mutter(" symlink target changed")
621
meta_modified = False
622
return text_modified, meta_modified
624
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
625
output_to, reverse=False):
626
"""See InventoryEntry._diff."""
627
from_text = self.symlink_target
628
if to_entry is not None:
629
to_text = to_entry.symlink_target
634
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
637
print >>output_to, '=== target was %r' % self.symlink_target
639
print >>output_to, '=== target is %r' % self.symlink_target
641
def __init__(self, file_id, name, parent_id):
642
super(InventoryLink, self).__init__(file_id, name, parent_id)
643
self.kind = 'symlink'
645
def kind_character(self):
646
"""See InventoryEntry.kind_character."""
649
def _put_in_tar(self, item, tree):
650
"""See InventoryEntry._put_in_tar."""
651
item.type = tarfile.SYMTYPE
655
item.linkname = self.symlink_target
658
def _put_on_disk(self, fullpath, tree):
659
"""See InventoryEntry._put_on_disk."""
661
os.symlink(self.symlink_target, fullpath)
663
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
665
def _read_tree_state(self, path, work_tree):
666
"""See InventoryEntry._read_tree_state."""
667
self.symlink_target = work_tree.get_symlink_target(self.file_id)
669
def _unchanged(self, previous_ie):
670
"""See InventoryEntry._unchanged."""
671
compatible = super(InventoryLink, self)._unchanged(previous_ie)
672
if self.symlink_target != previous_ie.symlink_target:
203
677
class Inventory(object):
204
678
"""Inventory of versioned files in a tree.