« back to all changes in this revision
Viewing changes to bzrlib/inventory.py
- browse files at revision 1491
- compare with another revision
- download diff
- download tarball
- view history from revision 1491
- Committer: Robert Collins
- Date: 2005-10-30 00:00:09 UTC
- mfrom: (1185.16.134)
- Revision ID: robertc@robertcollins.net-20051030000009-9db99a338a0dfdac
Merge from Martin.
- files added:
- HACKING
- bzrlib/store
- bzrlib/transport
- bzrlib/util
- bzrlib/util/configobj
- bzrlib/util/configobj/docs
- contrib/emacs
- tools
- files removed:
- bzrlib/meta_store.py
- plugins/changeset
- plugins/rsync
- files renamed:
- plugins/ => bzrlib/plugins/
- bzrlib/selftest/plugins.py => bzrlib/selftest/testplugins.py
- bzrlib/store.py => bzrlib/store/__init__.py
- effbot/ => bzrlib/util/effbot/
- elementtree/ => bzrlib/util/elementtree/
- urlgrabber/ => bzrlib/util/urlgrabber/
- bzrlib/newinventory.py => contrib/newinventory.py
- files modified:
- .bzrignore
- bzr *
- setup.py *
added
removed
bzrlib/inventory.py
1
1
# (C) 2005 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
5
5
# the Free Software Foundation; either version 2 of the License, or
6
6
# (at your option) any later version.
7
7
#
8
8
# This program is distributed in the hope that it will be useful,
9
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
11
# GNU General Public License for more details.
12
12
#
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16
16
17
# FIXME: This refactoring of the workingtree code doesn't seem to keep
18
# the WorkingTree's copy of the inventory in sync with the branch. The
19
# branch modifies its working inventory when it does a commit to make
20
# missing files permanently removed.
21
22
# TODO: Maybe also keep the full path of the entry, and the children?
23
# But those depend on its position within a particular inventory, and
24
# it would be nice not to need to hold the backpointer here.
17
25
18
26
# This should really be an id randomly assigned when the tree is
19
27
# created, but it's not for now.
20
28
ROOT_ID = "TREE_ROOT"
21
29
22
30
23
import sys, os.path, types, re
31
import os.path
32
import re
33
import sys
34
import tarfile
35
import types
24
36
25
37
import bzrlib
26
from bzrlib.errors import BzrError, BzrCheckError
27
28
from bzrlib.osutils import uuid, quotefn, splitpath, joinpath, appendpath
38
from bzrlib.osutils import (pumpfile, quotefn, splitpath, joinpath,
39
appendpath, sha_strings)
29
40
from bzrlib.trace import mutter
41
from bzrlib.errors import (NotVersionedError, InvalidEntryName,
42
BzrError, BzrCheckError)
43
30
44
31
45
class InventoryEntry(object):
32
46
"""Description of a versioned file.
34
48
An InventoryEntry has the following fields, which are also
35
49
present in the XML inventory-entry element:
36
50
37
* *file_id*
38
* *name*: (only the basename within the directory, must not
39
contain slashes)
40
* *kind*: "directory" or "file"
41
* *directory_id*: (if absent/null means the branch root directory)
42
* *text_sha1*: only for files
43
* *text_size*: in bytes, only for files
44
* *text_id*: identifier for the text version, only for files
45
46
InventoryEntries can also exist inside a WorkingTree
47
inventory, in which case they are not yet bound to a
48
particular revision of the file. In that case the text_sha1,
49
text_size and text_id are absent.
50
51
file_id
52
53
name
54
(within the parent directory)
55
56
parent_id
57
file_id of the parent directory, or ROOT_ID
58
59
revision
60
the revision_id in which this variation of this file was
61
introduced.
62
63
executable
64
Indicates that this file should be executable on systems
65
that support it.
66
67
text_sha1
68
sha-1 of the text of the file
69
70
text_size
71
size in bytes of the text of the file
72
73
(reading a version 4 tree created a text_id field.)
51
74
52
75
>>> i = Inventory()
53
76
>>> i.path2id('')
54
77
'TREE_ROOT'
55
>>> i.add(InventoryEntry('123', 'src', 'directory', ROOT_ID))
56
>>> i.add(InventoryEntry('2323', 'hello.c', 'file', parent_id='123'))
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')
57
82
>>> for j in i.iter_entries():
58
83
... print j
59
84
...
60
('src', InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT'))
61
('src/hello.c', InventoryEntry('2323', 'hello.c', kind='file', parent_id='123'))
62
>>> i.add(InventoryEntry('2323', 'bye.c', 'file', '123'))
85
('src', InventoryDirectory('123', 'src', parent_id='TREE_ROOT'))
86
('src/hello.c', InventoryFile('2323', 'hello.c', parent_id='123'))
87
>>> i.add(InventoryFile('2323', 'bye.c', '123'))
63
88
Traceback (most recent call last):
64
89
...
65
90
BzrError: inventory already contains entry with id {2323}
66
>>> i.add(InventoryEntry('2324', 'bye.c', 'file', '123'))
67
>>> i.add(InventoryEntry('2325', 'wibble', 'directory', '123'))
91
>>> i.add(InventoryFile('2324', 'bye.c', '123'))
92
InventoryFile('2324', 'bye.c', parent_id='123')
93
>>> i.add(InventoryDirectory('2325', 'wibble', '123'))
94
InventoryDirectory('2325', 'wibble', parent_id='123')
68
95
>>> i.path2id('src/wibble')
69
96
'2325'
70
97
>>> '2325' in i
71
98
True
72
>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
99
>>> i.add(InventoryFile('2326', 'wibble.c', '2325'))
100
InventoryFile('2326', 'wibble.c', parent_id='2325')
73
101
>>> i['2326']
74
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
75
>>> for j in i.iter_entries():
76
... print j[0]
77
... assert i.path2id(j[0])
102
InventoryFile('2326', 'wibble.c', parent_id='2325')
103
>>> for path, entry in i.iter_entries():
104
... print path.replace('\\\\', '/') # for win32 os.sep
105
... assert i.path2id(path)
78
106
...
79
107
src
80
108
src/bye.c
81
109
src/hello.c
82
110
src/wibble
83
111
src/wibble/wibble.c
84
>>> i.id2path('2326')
112
>>> i.id2path('2326').replace('\\\\', '/')
85
113
'src/wibble/wibble.c'
86
87
TODO: Maybe also keep the full path of the entry, and the children?
88
But those depend on its position within a particular inventory, and
89
it would be nice not to need to hold the backpointer here.
90
114
"""
91
92
# TODO: split InventoryEntry into subclasses for files,
93
# directories, etc etc.
94
95
text_sha1 = None
96
text_size = None
97
115
98
def __init__(self, file_id, name, kind, parent_id, text_id=None):
116
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
117
'text_id', 'parent_id', 'children', 'executable',
118
'revision']
119
120
def _add_text_to_weave(self, new_lines, parents, weave_store, transaction):
121
weave_store.add_text(self.file_id, self.revision, new_lines, parents,
122
transaction)
123
124
def detect_changes(self, old_entry):
125
"""Return a (text_modified, meta_modified) from this to old_entry.
126
127
_read_tree_state must have been called on self and old_entry prior to
128
calling detect_changes.
129
"""
130
return False, False
131
132
def diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
133
output_to, reverse=False):
134
"""Perform a diff from this to to_entry.
135
136
text_diff will be used for textual difference calculation.
137
This is a template method, override _diff in child classes.
138
"""
139
self._read_tree_state(tree.id2path(self.file_id), tree)
140
if to_entry:
141
# cannot diff from one kind to another - you must do a removal
142
# and an addif they do not match.
143
assert self.kind == to_entry.kind
144
to_entry._read_tree_state(to_tree.id2path(to_entry.file_id),
145
to_tree)
146
self._diff(text_diff, from_label, tree, to_label, to_entry, to_tree,
147
output_to, reverse)
148
149
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
150
output_to, reverse=False):
151
"""Perform a diff between two entries of the same kind."""
152
153
def find_previous_heads(self, previous_inventories, entry_weave):
154
"""Return the revisions and entries that directly preceed this.
155
156
Returned as a map from revision to inventory entry.
157
158
This is a map containing the file revisions in all parents
159
for which the file exists, and its revision is not a parent of
160
any other. If the file is new, the set will be empty.
161
"""
162
def get_ancestors(weave, entry):
163
return set(map(weave.idx_to_name,
164
weave.inclusions([weave.lookup(entry.revision)])))
165
heads = {}
166
head_ancestors = {}
167
for inv in previous_inventories:
168
if self.file_id in inv:
169
ie = inv[self.file_id]
170
assert ie.file_id == self.file_id
171
if ie.revision in heads:
172
# fixup logic, there was a bug in revision updates.
173
# with x bit support.
174
try:
175
if heads[ie.revision].executable != ie.executable:
176
heads[ie.revision].executable = False
177
ie.executable = False
178
except AttributeError:
179
pass
180
assert heads[ie.revision] == ie
181
else:
182
# may want to add it.
183
# may already be covered:
184
already_present = 0 != len(
185
[head for head in heads
186
if ie.revision in head_ancestors[head]])
187
if already_present:
188
# an ancestor of a known head.
189
continue
190
# definately a head:
191
ancestors = get_ancestors(entry_weave, ie)
192
# may knock something else out:
193
check_heads = list(heads.keys())
194
for head in check_heads:
195
if head in ancestors:
196
# this head is not really a head
197
heads.pop(head)
198
head_ancestors[ie.revision] = ancestors
199
heads[ie.revision] = ie
200
return heads
201
202
def get_tar_item(self, root, dp, now, tree):
203
"""Get a tarfile item and a file stream for its content."""
204
item = tarfile.TarInfo(os.path.join(root, dp))
205
# TODO: would be cool to actually set it to the timestamp of the
206
# revision it was last changed
207
item.mtime = now
208
fileobj = self._put_in_tar(item, tree)
209
return item, fileobj
210
211
def has_text(self):
212
"""Return true if the object this entry represents has textual data.
213
214
Note that textual data includes binary content.
215
216
Also note that all entries get weave files created for them.
217
This attribute is primarily used when upgrading from old trees that
218
did not have the weave index for all inventory entries.
219
"""
220
return False
221
222
def __init__(self, file_id, name, parent_id, text_id=None):
99
223
"""Create an InventoryEntry
100
224
101
225
The filename must be a single component, relative to the
102
226
parent directory; it cannot be a whole path or relative name.
103
227
104
>>> e = InventoryEntry('123', 'hello.c', 'file', ROOT_ID)
228
>>> e = InventoryFile('123', 'hello.c', ROOT_ID)
105
229
>>> e.name
106
230
'hello.c'
107
231
>>> e.file_id
108
232
'123'
109
>>> e = InventoryEntry('123', 'src/hello.c', 'file', ROOT_ID)
233
>>> e = InventoryFile('123', 'src/hello.c', ROOT_ID)
110
234
Traceback (most recent call last):
111
BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
235
InvalidEntryName: Invalid entry name: src/hello.c
112
236
"""
237
assert isinstance(name, basestring), name
113
238
if '/' in name or '\\' in name:
114
raise BzrCheckError('InventoryEntry name %r is invalid' % name)
115
239
raise InvalidEntryName(name=name)
240
self.executable = False
241
self.revision = None
242
self.text_sha1 = None
243
self.text_size = None
116
244
self.file_id = file_id
117
245
self.name = name
118
self.kind = kind
119
246
self.text_id = text_id
120
247
self.parent_id = parent_id
121
if kind == 'directory':
122
self.children = {}
123
elif kind == 'file':
124
pass
125
else:
126
raise BzrError("unhandled entry kind %r" % kind)
127
128
248
self.symlink_target = None
249
250
def kind_character(self):
251
"""Return a short kind indicator useful for appending to names."""
252
raise BzrError('unknown kind %r' % self.kind)
253
254
known_kinds = ('file', 'directory', 'symlink', 'root_directory')
255
256
def _put_in_tar(self, item, tree):
257
"""populate item for stashing in a tar, and return the content stream.
258
259
If no content is available, return None.
260
"""
261
raise BzrError("don't know how to export {%s} of kind %r" %
262
(self.file_id, self.kind))
263
264
def put_on_disk(self, dest, dp, tree):
265
"""Create a representation of self on disk in the prefix dest.
266
267
This is a template method - implement _put_on_disk in subclasses.
268
"""
269
fullpath = appendpath(dest, dp)
270
self._put_on_disk(fullpath, tree)
271
mutter(" export {%s} kind %s to %s" % (self.file_id, self.kind, fullpath))
272
273
def _put_on_disk(self, fullpath, tree):
274
"""Put this entry onto disk at fullpath, from tree tree."""
275
raise BzrError("don't know how to export {%s} of kind %r" % (self.file_id, self.kind))
129
276
130
277
def sorted_children(self):
131
278
l = self.children.items()
132
279
l.sort()
133
280
return l
134
281
282
@staticmethod
283
def versionable_kind(kind):
284
return kind in ('file', 'directory', 'symlink')
285
286
def check(self, checker, rev_id, inv, tree):
287
"""Check this inventory entry is intact.
288
289
This is a template method, override _check for kind specific
290
tests.
291
"""
292
if self.parent_id != None:
293
if not inv.has_id(self.parent_id):
294
raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
295
% (self.parent_id, rev_id))
296
self._check(checker, rev_id, tree)
297
298
def _check(self, checker, rev_id, tree):
299
"""Check this inventory entry for kind specific errors."""
300
raise BzrCheckError('unknown entry kind %r in revision {%s}' %
301
(self.kind, rev_id))
302
135
303
136
304
def copy(self):
137
other = InventoryEntry(self.file_id, self.name, self.kind,
138
self.parent_id, text_id=self.text_id)
139
other.text_sha1 = self.text_sha1
140
other.text_size = self.text_size
141
# note that children are *not* copied; they're pulled across when
142
# others are added
143
return other
305
"""Clone this inventory entry."""
306
raise NotImplementedError
144
307
308
def _get_snapshot_change(self, previous_entries):
309
if len(previous_entries) > 1:
310
return 'merged'
311
elif len(previous_entries) == 0:
312
return 'added'
313
else:
314
return 'modified/renamed/reparented'
145
315
146
316
def __repr__(self):
147
return ("%s(%r, %r, kind=%r, parent_id=%r)"
317
return ("%s(%r, %r, parent_id=%r)"
148
318
% (self.__class__.__name__,
149
319
self.file_id,
150
320
self.name,
151
self.kind,
152
321
self.parent_id))
153
322
154
155
def to_element(self):
156
"""Convert to XML element"""
157
from bzrlib.xml import Element
158
159
e = Element('entry')
160
161
e.set('name', self.name)
162
e.set('file_id', self.file_id)
163
e.set('kind', self.kind)
164
165
if self.text_size != None:
166
e.set('text_size', '%d' % self.text_size)
167
168
for f in ['text_id', 'text_sha1']:
169
v = getattr(self, f)
170
if v != None:
171
e.set(f, v)
172
173
# to be conservative, we don't externalize the root pointers
174
# for now, leaving them as null in the xml form. in a future
175
# version it will be implied by nested elements.
176
if self.parent_id != ROOT_ID:
177
assert isinstance(self.parent_id, basestring)
178
e.set('parent_id', self.parent_id)
179
180
e.tail = '\n'
181
182
return e
183
184
185
def from_element(cls, elt):
186
assert elt.tag == 'entry'
187
188
## original format inventories don't have a parent_id for
189
## nodes in the root directory, but it's cleaner to use one
190
## internally.
191
parent_id = elt.get('parent_id')
192
if parent_id == None:
193
parent_id = ROOT_ID
194
195
self = cls(elt.get('file_id'), elt.get('name'), elt.get('kind'), parent_id)
196
self.text_id = elt.get('text_id')
197
self.text_sha1 = elt.get('text_sha1')
198
199
## mutter("read inventoryentry: %r" % (elt.attrib))
200
201
v = elt.get('text_size')
202
self.text_size = v and int(v)
203
204
return self
205
206
207
from_element = classmethod(from_element)
323
def snapshot(self, revision, path, previous_entries,
324
work_tree, weave_store, transaction):
325
"""Make a snapshot of this entry which may or may not have changed.
326
327
This means that all its fields are populated, that it has its
328
text stored in the text store or weave.
329
"""
330
mutter('new parents of %s are %r', path, previous_entries)
331
self._read_tree_state(path, work_tree)
332
if len(previous_entries) == 1:
333
# cannot be unchanged unless there is only one parent file rev.
334
parent_ie = previous_entries.values()[0]
335
if self._unchanged(parent_ie):
336
mutter("found unchanged entry")
337
self.revision = parent_ie.revision
338
return "unchanged"
339
return self.snapshot_revision(revision, previous_entries,
340
work_tree, weave_store, transaction)
341
342
def snapshot_revision(self, revision, previous_entries, work_tree,
343
weave_store, transaction):
344
"""Record this revision unconditionally."""
345
mutter('new revision for {%s}', self.file_id)
346
self.revision = revision
347
change = self._get_snapshot_change(previous_entries)
348
self._snapshot_text(previous_entries, work_tree, weave_store,
349
transaction)
350
return change
351
352
def _snapshot_text(self, file_parents, work_tree, weave_store, transaction):
353
"""Record the 'text' of this entry, whatever form that takes.
354
355
This default implementation simply adds an empty text.
356
"""
357
mutter('storing file {%s} in revision {%s}',
358
self.file_id, self.revision)
359
self._add_text_to_weave([], file_parents, weave_store, transaction)
208
360
209
361
def __eq__(self, other):
210
362
if not isinstance(other, InventoryEntry):
211
363
return NotImplemented
212
364
213
return (self.file_id == other.file_id) \
214
and (self.name == other.name) \
215
and (self.text_sha1 == other.text_sha1) \
216
and (self.text_size == other.text_size) \
217
and (self.text_id == other.text_id) \
218
and (self.parent_id == other.parent_id) \
219
and (self.kind == other.kind)
220
365
return ((self.file_id == other.file_id)
366
and (self.name == other.name)
367
and (other.symlink_target == self.symlink_target)
368
and (self.text_sha1 == other.text_sha1)
369
and (self.text_size == other.text_size)
370
and (self.text_id == other.text_id)
371
and (self.parent_id == other.parent_id)
372
and (self.kind == other.kind)
373
and (self.revision == other.revision)
374
and (self.executable == other.executable)
375
)
221
376
222
377
def __ne__(self, other):
223
378
return not (self == other)
225
380
def __hash__(self):
226
381
raise ValueError('not hashable')
227
382
383
def _unchanged(self, previous_ie):
384
"""Has this entry changed relative to previous_ie.
385
386
This method should be overriden in child classes.
387
"""
388
compatible = True
389
# different inv parent
390
if previous_ie.parent_id != self.parent_id:
391
compatible = False
392
# renamed
393
elif previous_ie.name != self.name:
394
compatible = False
395
return compatible
396
397
def _read_tree_state(self, path, work_tree):
398
"""Populate fields in the inventory entry from the given tree.
399
400
Note that this should be modified to be a noop on virtual trees
401
as all entries created there are prepopulated.
402
"""
403
# TODO: Rather than running this manually, we should check the
404
# working sha1 and other expensive properties when they're
405
# first requested, or preload them if they're already known
406
pass # nothing to do by default
228
407
229
408
230
409
class RootEntry(InventoryEntry):
410
411
def _check(self, checker, rev_id, tree):
412
"""See InventoryEntry._check"""
413
231
414
def __init__(self, file_id):
232
415
self.file_id = file_id
233
416
self.children = {}
243
426
and (self.children == other.children)
244
427
245
428
429
class InventoryDirectory(InventoryEntry):
430
"""A directory in an inventory."""
431
432
def _check(self, checker, rev_id, tree):
433
"""See InventoryEntry._check"""
434
if self.text_sha1 != None or self.text_size != None or self.text_id != None:
435
raise BzrCheckError('directory {%s} has text in revision {%s}'
436
% (self.file_id, rev_id))
437
438
def copy(self):
439
other = InventoryDirectory(self.file_id, self.name, self.parent_id)
440
other.revision = self.revision
441
# note that children are *not* copied; they're pulled across when
442
# others are added
443
return other
444
445
def __init__(self, file_id, name, parent_id):
446
super(InventoryDirectory, self).__init__(file_id, name, parent_id)
447
self.children = {}
448
self.kind = 'directory'
449
450
def kind_character(self):
451
"""See InventoryEntry.kind_character."""
452
return '/'
453
454
def _put_in_tar(self, item, tree):
455
"""See InventoryEntry._put_in_tar."""
456
item.type = tarfile.DIRTYPE
457
fileobj = None
458
item.name += '/'
459
item.size = 0
460
item.mode = 0755
461
return fileobj
462
463
def _put_on_disk(self, fullpath, tree):
464
"""See InventoryEntry._put_on_disk."""
465
os.mkdir(fullpath)
466
467
468
class InventoryFile(InventoryEntry):
469
"""A file in an inventory."""
470
471
def _check(self, checker, rev_id, tree):
472
"""See InventoryEntry._check"""
473
revision = self.revision
474
t = (self.file_id, revision)
475
if t in checker.checked_texts:
476
prev_sha = checker.checked_texts[t]
477
if prev_sha != self.text_sha1:
478
raise BzrCheckError('mismatched sha1 on {%s} in {%s}' %
479
(self.file_id, rev_id))
480
else:
481
checker.repeated_text_cnt += 1
482
return
483
mutter('check version {%s} of {%s}', rev_id, self.file_id)
484
file_lines = tree.get_file_lines(self.file_id)
485
checker.checked_text_cnt += 1
486
if self.text_size != sum(map(len, file_lines)):
487
raise BzrCheckError('text {%s} wrong size' % self.text_id)
488
if self.text_sha1 != sha_strings(file_lines):
489
raise BzrCheckError('text {%s} wrong sha1' % self.text_id)
490
checker.checked_texts[t] = self.text_sha1
491
492
def copy(self):
493
other = InventoryFile(self.file_id, self.name, self.parent_id)
494
other.executable = self.executable
495
other.text_id = self.text_id
496
other.text_sha1 = self.text_sha1
497
other.text_size = self.text_size
498
other.revision = self.revision
499
return other
500
501
def detect_changes(self, old_entry):
502
"""See InventoryEntry.detect_changes."""
503
assert self.text_sha1 != None
504
assert old_entry.text_sha1 != None
505
text_modified = (self.text_sha1 != old_entry.text_sha1)
506
meta_modified = (self.executable != old_entry.executable)
507
return text_modified, meta_modified
508
509
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
510
output_to, reverse=False):
511
"""See InventoryEntry._diff."""
512
from_text = tree.get_file(self.file_id).readlines()
513
if to_entry:
514
to_text = to_tree.get_file(to_entry.file_id).readlines()
515
else:
516
to_text = []
517
if not reverse:
518
text_diff(from_label, from_text,
519
to_label, to_text, output_to)
520
else:
521
text_diff(to_label, to_text,
522
from_label, from_text, output_to)
523
524
def has_text(self):
525
"""See InventoryEntry.has_text."""
526
return True
527
528
def __init__(self, file_id, name, parent_id):
529
super(InventoryFile, self).__init__(file_id, name, parent_id)
530
self.kind = 'file'
531
532
def kind_character(self):
533
"""See InventoryEntry.kind_character."""
534
return ''
535
536
def _put_in_tar(self, item, tree):
537
"""See InventoryEntry._put_in_tar."""
538
item.type = tarfile.REGTYPE
539
fileobj = tree.get_file(self.file_id)
540
item.size = self.text_size
541
if tree.is_executable(self.file_id):
542
item.mode = 0755
543
else:
544
item.mode = 0644
545
return fileobj
546
547
def _put_on_disk(self, fullpath, tree):
548
"""See InventoryEntry._put_on_disk."""
549
pumpfile(tree.get_file(self.file_id), file(fullpath, 'wb'))
550
if tree.is_executable(self.file_id):
551
os.chmod(fullpath, 0755)
552
553
def _read_tree_state(self, path, work_tree):
554
"""See InventoryEntry._read_tree_state."""
555
self.text_sha1 = work_tree.get_file_sha1(self.file_id)
556
self.executable = work_tree.is_executable(self.file_id)
557
558
def _snapshot_text(self, file_parents, work_tree, weave_store, transaction):
559
"""See InventoryEntry._snapshot_text."""
560
mutter('storing file {%s} in revision {%s}',
561
self.file_id, self.revision)
562
# special case to avoid diffing on renames or
563
# reparenting
564
if (len(file_parents) == 1
565
and self.text_sha1 == file_parents.values()[0].text_sha1
566
and self.text_size == file_parents.values()[0].text_size):
567
previous_ie = file_parents.values()[0]
568
weave_store.add_identical_text(
569
self.file_id, previous_ie.revision,
570
self.revision, file_parents, transaction)
571
else:
572
new_lines = work_tree.get_file(self.file_id).readlines()
573
self._add_text_to_weave(new_lines, file_parents, weave_store,
574
transaction)
575
self.text_sha1 = sha_strings(new_lines)
576
self.text_size = sum(map(len, new_lines))
577
578
579
def _unchanged(self, previous_ie):
580
"""See InventoryEntry._unchanged."""
581
compatible = super(InventoryFile, self)._unchanged(previous_ie)
582
if self.text_sha1 != previous_ie.text_sha1:
583
compatible = False
584
else:
585
# FIXME: 20050930 probe for the text size when getting sha1
586
# in _read_tree_state
587
self.text_size = previous_ie.text_size
588
if self.executable != previous_ie.executable:
589
compatible = False
590
return compatible
591
592
593
class InventoryLink(InventoryEntry):
594
"""A file in an inventory."""
595
596
__slots__ = ['symlink_target']
597
598
def _check(self, checker, rev_id, tree):
599
"""See InventoryEntry._check"""
600
if self.text_sha1 != None or self.text_size != None or self.text_id != None:
601
raise BzrCheckError('symlink {%s} has text in revision {%s}'
602
% (self.file_id, rev_id))
603
if self.symlink_target == None:
604
raise BzrCheckError('symlink {%s} has no target in revision {%s}'
605
% (self.file_id, rev_id))
606
607
def copy(self):
608
other = InventoryLink(self.file_id, self.name, self.parent_id)
609
other.symlink_target = self.symlink_target
610
other.revision = self.revision
611
return other
612
613
def detect_changes(self, old_entry):
614
"""See InventoryEntry.detect_changes."""
615
# FIXME: which _modified field should we use ? RBC 20051003
616
text_modified = (self.symlink_target != old_entry.symlink_target)
617
if text_modified:
618
mutter(" symlink target changed")
619
meta_modified = False
620
return text_modified, meta_modified
621
622
def _diff(self, text_diff, from_label, tree, to_label, to_entry, to_tree,
623
output_to, reverse=False):
624
"""See InventoryEntry._diff."""
625
from_text = self.symlink_target
626
if to_entry is not None:
627
to_text = to_entry.symlink_target
628
if reverse:
629
temp = from_text
630
from_text = to_text
631
to_text = temp
632
print >>output_to, '=== target changed %r => %r' % (from_text, to_text)
633
else:
634
if not reverse:
635
print >>output_to, '=== target was %r' % self.symlink_target
636
else:
637
print >>output_to, '=== target is %r' % self.symlink_target
638
639
def __init__(self, file_id, name, parent_id):
640
super(InventoryLink, self).__init__(file_id, name, parent_id)
641
self.kind = 'symlink'
642
643
def kind_character(self):
644
"""See InventoryEntry.kind_character."""
645
return ''
646
647
def _put_in_tar(self, item, tree):
648
"""See InventoryEntry._put_in_tar."""
649
iterm.type = tarfile.SYMTYPE
650
fileobj = None
651
item.size = 0
652
item.mode = 0755
653
item.linkname = self.symlink_target
654
return fileobj
655
656
def _put_on_disk(self, fullpath, tree):
657
"""See InventoryEntry._put_on_disk."""
658
try:
659
os.symlink(self.symlink_target, fullpath)
660
except OSError,e:
661
raise BzrError("Failed to create symlink %r -> %r, error: %s" % (fullpath, self.symlink_target, e))
662
663
def _read_tree_state(self, path, work_tree):
664
"""See InventoryEntry._read_tree_state."""
665
self.symlink_target = work_tree.get_symlink_target(self.file_id)
666
667
def _unchanged(self, previous_ie):
668
"""See InventoryEntry._unchanged."""
669
compatible = super(InventoryLink, self)._unchanged(previous_ie)
670
if self.symlink_target != previous_ie.symlink_target:
671
compatible = False
672
return compatible
673
246
674
247
675
class Inventory(object):
248
676
"""Inventory of versioned files in a tree.
262
690
inserted, other than through the Inventory API.
263
691
264
692
>>> inv = Inventory()
265
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
693
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
694
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT')
266
695
>>> inv['123-123'].name
267
696
'hello.c'
268
697
277
706
278
707
>>> [x[0] for x in inv.iter_entries()]
279
708
['hello.c']
709
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
710
>>> inv.add(InventoryFile('123-123', 'hello.c', ROOT_ID))
711
InventoryFile('123-123', 'hello.c', parent_id='TREE_ROOT-12345678-12345678')
280
712
"""
281
def __init__(self):
713
def __init__(self, root_id=ROOT_ID):
282
714
"""Create or read an inventory.
283
715
284
716
If a working directory is specified, the inventory is read
288
720
The inventory is created with a default root directory, with
289
721
an id of None.
290
722
"""
291
self.root = RootEntry(ROOT_ID)
723
# We are letting Branch.initialize() create a unique inventory
724
# root id. Rather than generating a random one here.
725
#if root_id is None:
726
# root_id = bzrlib.branch.gen_file_id('TREE_ROOT')
727
self.root = RootEntry(root_id)
292
728
self._byid = {self.root.file_id: self.root}
293
729
294
730
731
def copy(self):
732
other = Inventory(self.root.file_id)
733
# copy recursively so we know directories will be added before
734
# their children. There are more efficient ways than this...
735
for path, entry in self.iter_entries():
736
if entry == self.root:
737
continue
738
other.add(entry.copy())
739
return other
740
741
295
742
def __iter__(self):
296
743
return iter(self._byid)
297
744
359
806
"""True if this entry contains a file with given id.
360
807
361
808
>>> inv = Inventory()
362
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
809
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
810
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT')
363
811
>>> '123' in inv
364
812
True
365
813
>>> '456' in inv
372
820
"""Return the entry for given file_id.
373
821
374
822
>>> inv = Inventory()
375
>>> inv.add(InventoryEntry('123123', 'hello.c', 'file', ROOT_ID))
823
>>> inv.add(InventoryFile('123123', 'hello.c', ROOT_ID))
824
InventoryFile('123123', 'hello.c', parent_id='TREE_ROOT')
376
825
>>> inv['123123'].name
377
826
'hello.c'
378
827
"""
396
845
"""Add entry to inventory.
397
846
398
847
To add a file to a branch ready to be committed, use Branch.add,
399
which calls this."""
848
which calls this.
849
850
Returns the new entry object.
851
"""
400
852
if entry.file_id in self._byid:
401
853
raise BzrError("inventory already contains entry with id {%s}" % entry.file_id)
402
854
855
if entry.parent_id == ROOT_ID or entry.parent_id is None:
856
entry.parent_id = self.root.file_id
857
403
858
try:
404
859
parent = self._byid[entry.parent_id]
405
860
except KeyError:
411
866
412
867
self._byid[entry.file_id] = entry
413
868
parent.children[entry.name] = entry
869
return entry
414
870
415
871
416
872
def add_path(self, relpath, kind, file_id=None):
417
873
"""Add entry from a path.
418
874
419
The immediate parent must already be versioned"""
420
from bzrlib.errors import NotVersionedError
875
The immediate parent must already be versioned.
876
877
Returns the new entry object."""
878
from bzrlib.branch import gen_file_id
421
879
422
880
parts = bzrlib.osutils.splitpath(relpath)
423
881
if len(parts) == 0:
424
882
raise BzrError("cannot re-add root of inventory")
425
883
426
884
if file_id == None:
427
from bzrlib.branch import gen_file_id
428
885
file_id = gen_file_id(relpath)
429
886
430
887
parent_path = parts[:-1]
431
888
parent_id = self.path2id(parent_path)
432
889
if parent_id == None:
433
raise NotVersionedError(parent_path)
434
435
ie = InventoryEntry(file_id, parts[-1],
436
kind=kind, parent_id=parent_id)
890
raise NotVersionedError(path=parent_path)
891
if kind == 'directory':
892
ie = InventoryDirectory(file_id, parts[-1], parent_id)
893
elif kind == 'file':
894
ie = InventoryFile(file_id, parts[-1], parent_id)
895
elif kind == 'symlink':
896
ie = InventoryLink(file_id, parts[-1], parent_id)
897
else:
898
raise BzrError("unknown kind %r" % kind)
437
899
return self.add(ie)
438
900
439
901
441
903
"""Remove entry by id.
442
904
443
905
>>> inv = Inventory()
444
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
906
>>> inv.add(InventoryFile('123', 'foo.c', ROOT_ID))
907
InventoryFile('123', 'foo.c', parent_id='TREE_ROOT')
445
908
>>> '123' in inv
446
909
True
447
910
>>> del inv['123']
463
926
del self[ie.parent_id].children[ie.name]
464
927
465
928
466
def to_element(self):
467
"""Convert to XML Element"""
468
from bzrlib.xml import Element
469
470
e = Element('inventory')
471
e.text = '\n'
472
for path, ie in self.iter_entries():
473
e.append(ie.to_element())
474
return e
475
476
477
def from_element(cls, elt):
478
"""Construct from XML Element
479
480
>>> inv = Inventory()
481
>>> inv.add(InventoryEntry('foo.c-123981239', 'foo.c', 'file', ROOT_ID))
482
>>> elt = inv.to_element()
483
>>> inv2 = Inventory.from_element(elt)
484
>>> inv2 == inv
485
True
486
"""
487
assert elt.tag == 'inventory'
488
o = cls()
489
for e in elt:
490
o.add(InventoryEntry.from_element(e))
491
return o
492
493
from_element = classmethod(from_element)
494
495
496
929
def __eq__(self, other):
497
930
"""Compare two sets by comparing their contents.
498
931
500
933
>>> i2 = Inventory()
501
934
>>> i1 == i2
502
935
True
503
>>> i1.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
936
>>> i1.add(InventoryFile('123', 'foo', ROOT_ID))
937
InventoryFile('123', 'foo', parent_id='TREE_ROOT')
504
938
>>> i1 == i2
505
939
False
506
>>> i2.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
940
>>> i2.add(InventoryFile('123', 'foo', ROOT_ID))
941
InventoryFile('123', 'foo', parent_id='TREE_ROOT')
507
942
>>> i1 == i2
508
943
True
509
944
"""
518
953
519
954
520
955
def __ne__(self, other):
521
return not (self == other)
956
return not self.__eq__(other)
522
957
523
958
524
959
def __hash__(self):
525
960
raise ValueError('not hashable')
526
961
527
962
528
529
963
def get_idpath(self, file_id):
530
964
"""Return a list of file_ids for the path to an entry.
531
965
546
980
547
981
548
982
def id2path(self, file_id):
549
"""Return as a list the path to file_id."""
550
983
"""Return as a list the path to file_id.
984
985
>>> i = Inventory()
986
>>> e = i.add(InventoryDirectory('src-id', 'src', ROOT_ID))
987
>>> e = i.add(InventoryFile('foo-id', 'foo.c', parent_id='src-id'))
988
>>> print i.id2path('foo-id').replace(os.sep, '/')
989
src/foo.c
990
"""
551
991
# get all names, skipping root
552
p = [self[fid].name for fid in self.get_idpath(file_id)[1:]]
992
p = [self._byid[fid].name for fid in self.get_idpath(file_id)[1:]]
553
993
return os.sep.join(p)
554
994
555
995
624
1064
625
1065
626
1066
627
_NAME_RE = re.compile(r'^[^/\\]+$')
1067
_NAME_RE = None
628
1068
629
1069
def is_valid_name(name):
1070
global _NAME_RE
1071
if _NAME_RE == None:
1072
_NAME_RE = re.compile(r'^[^/\\]+$')
1073
630
1074
return bool(_NAME_RE.match(name))
Loggerhead is a web-based interface for Breezy
Version: 2.0.1