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Viewing changes to bzrlib/selftest/testconfig.py

  • 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.

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bzrlib/selftest/testconfig.py
 
1
# Copyright (C) 2005 by Canonical Ltd
 
2
#   Authors: Robert Collins <robert.collins@canonical.com>
 
3
#
 
4
# This program is free software; you can redistribute it and/or modify
 
5
# it under the terms of the GNU General Public License as published by
 
6
# the Free Software Foundation; either version 2 of the License, or
 
7
# (at your option) any later version.
 
8
#
 
9
# This program is distributed in the hope that it will be useful,
 
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
12
# GNU General Public License for more details.
 
13
#
 
14
# You should have received a copy of the GNU General Public License
 
15
# along with this program; if not, write to the Free Software
 
16
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
17
 
 
18
"""Tests for finding and reading the bzr config file[s]."""
 
19
# import system imports here
 
20
from bzrlib.util.configobj.configobj import ConfigObj, ConfigObjError
 
21
from cStringIO import StringIO
 
22
import os
 
23
import sys
 
24
 
 
25
#import bzrlib specific imports here
 
26
import bzrlib.config as config
 
27
import bzrlib.errors as errors
 
28
from bzrlib.selftest import TestCase, TestCaseInTempDir
 
29
 
 
30
 
 
31
sample_config_text = ("[DEFAULT]\n"
 
32
                      "email=Robert Collins <robertc@example.com>\n"
 
33
                      "editor=vim\n"
 
34
                      "gpg_signing_command=gnome-gpg\n"
 
35
                      "user_global_option=something\n")
 
36
 
 
37
 
 
38
sample_always_signatures = ("[DEFAULT]\n"
 
39
                            "check_signatures=require\n")
 
40
 
 
41
 
 
42
sample_ignore_signatures = ("[DEFAULT]\n"
 
43
                            "check_signatures=ignore\n")
 
44
 
 
45
 
 
46
sample_maybe_signatures = ("[DEFAULT]\n"
 
47
                            "check_signatures=check-available\n")
 
48
 
 
49
 
 
50
sample_branches_text = ("[http://www.example.com]\n"
 
51
                        "# Top level policy\n"
 
52
                        "email=Robert Collins <robertc@example.org>\n"
 
53
                        "[http://www.example.com/useglobal]\n"
 
54
                        "# different project, forces global lookup\n"
 
55
                        "recurse=false\n"
 
56
                        "[/b/]\n"
 
57
                        "check_signatures=require\n"
 
58
                        "# test trailing / matching with no children\n"
 
59
                        "[/a/]\n"
 
60
                        "check_signatures=check-available\n"
 
61
                        "gpg_signing_command=false\n"
 
62
                        "user_local_option=local\n"
 
63
                        "# test trailing / matching\n"
 
64
                        "[/a/*]\n"
 
65
                        "#subdirs will match but not the parent\n"
 
66
                        "recurse=False\n"
 
67
                        "[/a/c]\n"
 
68
                        "check_signatures=ignore\n"
 
69
                        "post_commit=bzrlib.selftest.testconfig.post_commit\n"
 
70
                        "#testing explicit beats globs\n")
 
71
 
 
72
 
 
73
class InstrumentedConfigObj(object):
 
74
    """A config obj look-enough-alike to record calls made to it."""
 
75
 
 
76
    def __contains__(self, thing):
 
77
        self._calls.append(('__contains__', thing))
 
78
        return False
 
79
 
 
80
    def __getitem__(self, key):
 
81
        self._calls.append(('__getitem__', key))
 
82
        return self
 
83
 
 
84
    def __init__(self, input):
 
85
        self._calls = [('__init__', input)]
 
86
 
 
87
    def __setitem__(self, key, value):
 
88
        self._calls.append(('__setitem__', key, value))
 
89
 
 
90
    def write(self):
 
91
        self._calls.append(('write',))
 
92
 
 
93
 
 
94
class FakeBranch(object):
 
95
 
 
96
    def __init__(self):
 
97
        self.base = "http://example.com/branches/demo"
 
98
        self.email = 'Robert Collins <robertc@example.net>\n'
 
99
 
 
100
    def controlfile(self, filename, mode):
 
101
        if filename != 'email':
 
102
            raise NotImplementedError
 
103
        if self.email is not None:
 
104
            return StringIO(self.email)
 
105
        raise errors.NoSuchFile
 
106
 
 
107
 
 
108
class InstrumentedConfig(config.Config):
 
109
    """An instrumented config that supplies stubs for template methods."""
 
110
    
 
111
    def __init__(self):
 
112
        super(InstrumentedConfig, self).__init__()
 
113
        self._calls = []
 
114
        self._signatures = config.CHECK_NEVER
 
115
 
 
116
    def _get_user_id(self):
 
117
        self._calls.append('_get_user_id')
 
118
        return "Robert Collins <robert.collins@example.org>"
 
119
 
 
120
    def _get_signature_checking(self):
 
121
        self._calls.append('_get_signature_checking')
 
122
        return self._signatures
 
123
 
 
124
 
 
125
class TestConfig(TestCase):
 
126
 
 
127
    def test_constructs(self):
 
128
        config.Config()
 
129
 
 
130
    def test_no_default_editor(self):
 
131
        self.assertRaises(NotImplementedError, config.Config().get_editor)
 
132
 
 
133
    def test_user_email(self):
 
134
        my_config = InstrumentedConfig()
 
135
        self.assertEqual('robert.collins@example.org', my_config.user_email())
 
136
        self.assertEqual(['_get_user_id'], my_config._calls)
 
137
 
 
138
    def test_username(self):
 
139
        my_config = InstrumentedConfig()
 
140
        self.assertEqual('Robert Collins <robert.collins@example.org>',
 
141
                         my_config.username())
 
142
        self.assertEqual(['_get_user_id'], my_config._calls)
 
143
 
 
144
    def test_signatures_default(self):
 
145
        my_config = config.Config()
 
146
        self.assertEqual(config.CHECK_IF_POSSIBLE,
 
147
                         my_config.signature_checking())
 
148
 
 
149
    def test_signatures_template_method(self):
 
150
        my_config = InstrumentedConfig()
 
151
        self.assertEqual(config.CHECK_NEVER, my_config.signature_checking())
 
152
        self.assertEqual(['_get_signature_checking'], my_config._calls)
 
153
 
 
154
    def test_signatures_template_method_none(self):
 
155
        my_config = InstrumentedConfig()
 
156
        my_config._signatures = None
 
157
        self.assertEqual(config.CHECK_IF_POSSIBLE,
 
158
                         my_config.signature_checking())
 
159
        self.assertEqual(['_get_signature_checking'], my_config._calls)
 
160
 
 
161
    def test_gpg_signing_command_default(self):
 
162
        my_config = config.Config()
 
163
        self.assertEqual('gpg', my_config.gpg_signing_command())
 
164
 
 
165
    def test_get_user_option_default(self):
 
166
        my_config = config.Config()
 
167
        self.assertEqual(None, my_config.get_user_option('no_option'))
 
168
 
 
169
    def test_post_commit_default(self):
 
170
        my_config = config.Config()
 
171
        self.assertEqual(None, my_config.post_commit())
 
172
 
 
173
 
 
174
class TestConfigPath(TestCase):
 
175
 
 
176
    def setUp(self):
 
177
        super(TestConfigPath, self).setUp()
 
178
        self.oldenv = os.environ.get('HOME', None)
 
179
        os.environ['HOME'] = '/home/bogus'
 
180
 
 
181
    def tearDown(self):
 
182
        os.environ['HOME'] = self.oldenv
 
183
        super(TestConfigPath, self).tearDown()
 
184
    
 
185
    def test_config_dir(self):
 
186
        self.assertEqual(config.config_dir(), '/home/bogus/.bazaar')
 
187
 
 
188
    def test_config_filename(self):
 
189
        self.assertEqual(config.config_filename(),
 
190
                         '/home/bogus/.bazaar/bazaar.conf')
 
191
 
 
192
    def test_branches_config_filename(self):
 
193
        self.assertEqual(config.branches_config_filename(),
 
194
                         '/home/bogus/.bazaar/branches.conf')
 
195
 
 
196
class TestIniConfig(TestCase):
 
197
 
 
198
    def test_contructs(self):
 
199
        my_config = config.IniBasedConfig("nothing")
 
200
 
 
201
    def test_from_fp(self):
 
202
        config_file = StringIO(sample_config_text)
 
203
        my_config = config.IniBasedConfig(None)
 
204
        self.failUnless(
 
205
            isinstance(my_config._get_parser(file=config_file),
 
206
                        ConfigObj))
 
207
 
 
208
    def test_cached(self):
 
209
        config_file = StringIO(sample_config_text)
 
210
        my_config = config.IniBasedConfig(None)
 
211
        parser = my_config._get_parser(file=config_file)
 
212
        self.failUnless(my_config._get_parser() is parser)
 
213
 
 
214
 
 
215
class TestGetConfig(TestCase):
 
216
 
 
217
    def test_constructs(self):
 
218
        my_config = config.GlobalConfig()
 
219
 
 
220
    def test_calls_read_filenames(self):
 
221
        # replace the class that is constructured, to check its parameters
 
222
        oldparserclass = config.ConfigObj
 
223
        config.ConfigObj = InstrumentedConfigObj
 
224
        my_config = config.GlobalConfig()
 
225
        try:
 
226
            parser = my_config._get_parser()
 
227
        finally:
 
228
            config.ConfigObj = oldparserclass
 
229
        self.failUnless(isinstance(parser, InstrumentedConfigObj))
 
230
        self.assertEqual(parser._calls, [('__init__', config.config_filename())])
 
231
 
 
232
 
 
233
class TestBranchConfig(TestCaseInTempDir):
 
234
 
 
235
    def test_constructs(self):
 
236
        branch = FakeBranch()
 
237
        my_config = config.BranchConfig(branch)
 
238
        self.assertRaises(TypeError, config.BranchConfig)
 
239
 
 
240
    def test_get_location_config(self):
 
241
        branch = FakeBranch()
 
242
        my_config = config.BranchConfig(branch)
 
243
        location_config = my_config._get_location_config()
 
244
        self.assertEqual(branch.base, location_config.location)
 
245
        self.failUnless(location_config is my_config._get_location_config())
 
246
 
 
247
 
 
248
class TestGlobalConfigItems(TestCase):
 
249
 
 
250
    def test_user_id(self):
 
251
        config_file = StringIO(sample_config_text)
 
252
        my_config = config.GlobalConfig()
 
253
        my_config._parser = my_config._get_parser(file=config_file)
 
254
        self.assertEqual("Robert Collins <robertc@example.com>",
 
255
                         my_config._get_user_id())
 
256
 
 
257
    def test_absent_user_id(self):
 
258
        config_file = StringIO("")
 
259
        my_config = config.GlobalConfig()
 
260
        my_config._parser = my_config._get_parser(file=config_file)
 
261
        self.assertEqual(None, my_config._get_user_id())
 
262
 
 
263
    def test_configured_editor(self):
 
264
        config_file = StringIO(sample_config_text)
 
265
        my_config = config.GlobalConfig()
 
266
        my_config._parser = my_config._get_parser(file=config_file)
 
267
        self.assertEqual("vim", my_config.get_editor())
 
268
 
 
269
    def test_signatures_always(self):
 
270
        config_file = StringIO(sample_always_signatures)
 
271
        my_config = config.GlobalConfig()
 
272
        my_config._parser = my_config._get_parser(file=config_file)
 
273
        self.assertEqual(config.CHECK_ALWAYS,
 
274
                         my_config.signature_checking())
 
275
        self.assertEqual(True, my_config.signature_needed())
 
276
 
 
277
    def test_signatures_if_possible(self):
 
278
        config_file = StringIO(sample_maybe_signatures)
 
279
        my_config = config.GlobalConfig()
 
280
        my_config._parser = my_config._get_parser(file=config_file)
 
281
        self.assertEqual(config.CHECK_IF_POSSIBLE,
 
282
                         my_config.signature_checking())
 
283
        self.assertEqual(False, my_config.signature_needed())
 
284
 
 
285
    def test_signatures_ignore(self):
 
286
        config_file = StringIO(sample_ignore_signatures)
 
287
        my_config = config.GlobalConfig()
 
288
        my_config._parser = my_config._get_parser(file=config_file)
 
289
        self.assertEqual(config.CHECK_NEVER,
 
290
                         my_config.signature_checking())
 
291
        self.assertEqual(False, my_config.signature_needed())
 
292
 
 
293
    def _get_sample_config(self):
 
294
        config_file = StringIO(sample_config_text)
 
295
        my_config = config.GlobalConfig()
 
296
        my_config._parser = my_config._get_parser(file=config_file)
 
297
        return my_config
 
298
 
 
299
    def test_gpg_signing_command(self):
 
300
        my_config = self._get_sample_config()
 
301
        self.assertEqual("gnome-gpg", my_config.gpg_signing_command())
 
302
        self.assertEqual(False, my_config.signature_needed())
 
303
 
 
304
    def _get_empty_config(self):
 
305
        config_file = StringIO("")
 
306
        my_config = config.GlobalConfig()
 
307
        my_config._parser = my_config._get_parser(file=config_file)
 
308
        return my_config
 
309
 
 
310
    def test_gpg_signing_command_unset(self):
 
311
        my_config = self._get_empty_config()
 
312
        self.assertEqual("gpg", my_config.gpg_signing_command())
 
313
 
 
314
    def test_get_user_option_default(self):
 
315
        my_config = self._get_empty_config()
 
316
        self.assertEqual(None, my_config.get_user_option('no_option'))
 
317
 
 
318
    def test_get_user_option_global(self):
 
319
        my_config = self._get_sample_config()
 
320
        self.assertEqual("something",
 
321
                         my_config.get_user_option('user_global_option'))
 
322
        
 
323
    def test_post_commit_default(self):
 
324
        my_config = self._get_sample_config()
 
325
        self.assertEqual(None, my_config.post_commit())
 
326
 
 
327
 
 
328
 
 
329
class TestLocationConfig(TestCase):
 
330
 
 
331
    def test_constructs(self):
 
332
        my_config = config.LocationConfig('http://example.com')
 
333
        self.assertRaises(TypeError, config.LocationConfig)
 
334
 
 
335
    def test_branch_calls_read_filenames(self):
 
336
        # This is testing the correct file names are provided.
 
337
        # TODO: consolidate with the test for GlobalConfigs filename checks.
 
338
        #
 
339
        # replace the class that is constructured, to check its parameters
 
340
        oldparserclass = config.ConfigObj
 
341
        config.ConfigObj = InstrumentedConfigObj
 
342
        my_config = config.LocationConfig('http://www.example.com')
 
343
        try:
 
344
            parser = my_config._get_parser()
 
345
        finally:
 
346
            config.ConfigObj = oldparserclass
 
347
        self.failUnless(isinstance(parser, InstrumentedConfigObj))
 
348
        self.assertEqual(parser._calls,
 
349
                         [('__init__', config.branches_config_filename())])
 
350
 
 
351
    def test_get_global_config(self):
 
352
        my_config = config.LocationConfig('http://example.com')
 
353
        global_config = my_config._get_global_config()
 
354
        self.failUnless(isinstance(global_config, config.GlobalConfig))
 
355
        self.failUnless(global_config is my_config._get_global_config())
 
356
 
 
357
    def test__get_section_no_match(self):
 
358
        self.get_location_config('/')
 
359
        self.assertEqual(None, self.my_config._get_section())
 
360
        
 
361
    def test__get_section_exact(self):
 
362
        self.get_location_config('http://www.example.com')
 
363
        self.assertEqual('http://www.example.com',
 
364
                         self.my_config._get_section())
 
365
   
 
366
    def test__get_section_suffix_does_not(self):
 
367
        self.get_location_config('http://www.example.com-com')
 
368
        self.assertEqual(None, self.my_config._get_section())
 
369
 
 
370
    def test__get_section_subdir_recursive(self):
 
371
        self.get_location_config('http://www.example.com/com')
 
372
        self.assertEqual('http://www.example.com',
 
373
                         self.my_config._get_section())
 
374
 
 
375
    def test__get_section_subdir_matches(self):
 
376
        self.get_location_config('http://www.example.com/useglobal')
 
377
        self.assertEqual('http://www.example.com/useglobal',
 
378
                         self.my_config._get_section())
 
379
 
 
380
    def test__get_section_subdir_nonrecursive(self):
 
381
        self.get_location_config(
 
382
            'http://www.example.com/useglobal/childbranch')
 
383
        self.assertEqual('http://www.example.com',
 
384
                         self.my_config._get_section())
 
385
 
 
386
    def test__get_section_subdir_trailing_slash(self):
 
387
        self.get_location_config('/b')
 
388
        self.assertEqual('/b/', self.my_config._get_section())
 
389
 
 
390
    def test__get_section_subdir_child(self):
 
391
        self.get_location_config('/a/foo')
 
392
        self.assertEqual('/a/*', self.my_config._get_section())
 
393
 
 
394
    def test__get_section_subdir_child_child(self):
 
395
        self.get_location_config('/a/foo/bar')
 
396
        self.assertEqual('/a/', self.my_config._get_section())
 
397
 
 
398
    def test__get_section_trailing_slash_with_children(self):
 
399
        self.get_location_config('/a/')
 
400
        self.assertEqual('/a/', self.my_config._get_section())
 
401
 
 
402
    def test__get_section_explicit_over_glob(self):
 
403
        self.get_location_config('/a/c')
 
404
        self.assertEqual('/a/c', self.my_config._get_section())
 
405
 
 
406
    def get_location_config(self, location, global_config=None):
 
407
        if global_config is None:
 
408
            global_file = StringIO(sample_config_text)
 
409
        else:
 
410
            global_file = StringIO(global_config)
 
411
        branches_file = StringIO(sample_branches_text)
 
412
        self.my_config = config.LocationConfig(location)
 
413
        self.my_config._get_parser(branches_file)
 
414
        self.my_config._get_global_config()._get_parser(global_file)
 
415
 
 
416
    def test_location_without_username(self):
 
417
        self.get_location_config('http://www.example.com/useglobal')
 
418
        self.assertEqual('Robert Collins <robertc@example.com>',
 
419
                         self.my_config.username())
 
420
 
 
421
    def test_location_not_listed(self):
 
422
        self.get_location_config('/home/robertc/sources')
 
423
        self.assertEqual('Robert Collins <robertc@example.com>',
 
424
                         self.my_config.username())
 
425
 
 
426
    def test_overriding_location(self):
 
427
        self.get_location_config('http://www.example.com/foo')
 
428
        self.assertEqual('Robert Collins <robertc@example.org>',
 
429
                         self.my_config.username())
 
430
 
 
431
    def test_signatures_not_set(self):
 
432
        self.get_location_config('http://www.example.com',
 
433
                                 global_config=sample_ignore_signatures)
 
434
        self.assertEqual(config.CHECK_NEVER,
 
435
                         self.my_config.signature_checking())
 
436
 
 
437
    def test_signatures_never(self):
 
438
        self.get_location_config('/a/c')
 
439
        self.assertEqual(config.CHECK_NEVER,
 
440
                         self.my_config.signature_checking())
 
441
        
 
442
    def test_signatures_when_available(self):
 
443
        self.get_location_config('/a/', global_config=sample_ignore_signatures)
 
444
        self.assertEqual(config.CHECK_IF_POSSIBLE,
 
445
                         self.my_config.signature_checking())
 
446
        
 
447
    def test_signatures_always(self):
 
448
        self.get_location_config('/b')
 
449
        self.assertEqual(config.CHECK_ALWAYS,
 
450
                         self.my_config.signature_checking())
 
451
        
 
452
    def test_gpg_signing_command(self):
 
453
        self.get_location_config('/b')
 
454
        self.assertEqual("gnome-gpg", self.my_config.gpg_signing_command())
 
455
 
 
456
    def test_gpg_signing_command_missing(self):
 
457
        self.get_location_config('/a')
 
458
        self.assertEqual("false", self.my_config.gpg_signing_command())
 
459
 
 
460
    def test_get_user_option_global(self):
 
461
        self.get_location_config('/a')
 
462
        self.assertEqual('something',
 
463
                         self.my_config.get_user_option('user_global_option'))
 
464
 
 
465
    def test_get_user_option_local(self):
 
466
        self.get_location_config('/a')
 
467
        self.assertEqual('local',
 
468
                         self.my_config.get_user_option('user_local_option'))
 
469
        
 
470
    def test_post_commit_default(self):
 
471
        self.get_location_config('/a/c')
 
472
        self.assertEqual('bzrlib.selftest.testconfig.post_commit',
 
473
                         self.my_config.post_commit())
 
474
 
 
475
    def test_set_user_setting_sets_and_saves(self):
 
476
        # TODO RBC 20051029 test hat mkdir ~/.bazaar is called ..
 
477
        self.get_location_config('/a/c')
 
478
        record = InstrumentedConfigObj("foo")
 
479
        self.my_config._parser = record
 
480
        self.my_config.set_user_option('foo', 'bar')
 
481
        self.assertEqual([('__contains__', '/a/c'),
 
482
                          ('__contains__', '/a/c/'),
 
483
                          ('__setitem__', '/a/c', {}),
 
484
                          ('__getitem__', '/a/c'),
 
485
                          ('__setitem__', 'foo', 'bar'),
 
486
                          ('write',)],
 
487
                         record._calls[1:])
 
488
 
 
489
 
 
490
class TestBranchConfigItems(TestCase):
 
491
 
 
492
    def test_user_id(self):
 
493
        branch = FakeBranch()
 
494
        my_config = config.BranchConfig(branch)
 
495
        self.assertEqual("Robert Collins <robertc@example.net>",
 
496
                         my_config._get_user_id())
 
497
        branch.email = "John"
 
498
        self.assertEqual("John", my_config._get_user_id())
 
499
 
 
500
    def test_not_set_in_branch(self):
 
501
        branch = FakeBranch()
 
502
        my_config = config.BranchConfig(branch)
 
503
        branch.email = None
 
504
        config_file = StringIO(sample_config_text)
 
505
        (my_config._get_location_config().
 
506
            _get_global_config()._get_parser(config_file))
 
507
        self.assertEqual("Robert Collins <robertc@example.com>",
 
508
                         my_config._get_user_id())
 
509
        branch.email = "John"
 
510
        self.assertEqual("John", my_config._get_user_id())
 
511
 
 
512
    def test_BZREMAIL_OVERRIDES(self):
 
513
        os.environ['BZREMAIL'] = "Robert Collins <robertc@example.org>"
 
514
        branch = FakeBranch()
 
515
        my_config = config.BranchConfig(branch)
 
516
        self.assertEqual("Robert Collins <robertc@example.org>",
 
517
                         my_config.username())
 
518
    
 
519
    def test_signatures_forced(self):
 
520
        branch = FakeBranch()
 
521
        my_config = config.BranchConfig(branch)
 
522
        config_file = StringIO(sample_always_signatures)
 
523
        (my_config._get_location_config().
 
524
            _get_global_config()._get_parser(config_file))
 
525
        self.assertEqual(config.CHECK_ALWAYS, my_config.signature_checking())
 
526
 
 
527
    def test_gpg_signing_command(self):
 
528
        branch = FakeBranch()
 
529
        my_config = config.BranchConfig(branch)
 
530
        config_file = StringIO(sample_config_text)
 
531
        (my_config._get_location_config().
 
532
            _get_global_config()._get_parser(config_file))
 
533
        self.assertEqual('gnome-gpg', my_config.gpg_signing_command())
 
534
 
 
535
    def test_get_user_option_global(self):
 
536
        branch = FakeBranch()
 
537
        my_config = config.BranchConfig(branch)
 
538
        config_file = StringIO(sample_config_text)
 
539
        (my_config._get_location_config().
 
540
            _get_global_config()._get_parser(config_file))
 
541
        self.assertEqual('something',
 
542
                         my_config.get_user_option('user_global_option'))
 
543
 
 
544
    def test_post_commit_default(self):
 
545
        branch = FakeBranch()
 
546
        branch.base='/a/c'
 
547
        my_config = config.BranchConfig(branch)
 
548
        config_file = StringIO(sample_config_text)
 
549
        (my_config._get_location_config().
 
550
            _get_global_config()._get_parser(config_file))
 
551
        branch_file = StringIO(sample_branches_text)
 
552
        my_config._get_location_config()._get_parser(branch_file)
 
553
        self.assertEqual('bzrlib.selftest.testconfig.post_commit',
 
554
                         my_config.post_commit())