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# Copyright (C) 2006-2010 Canonical Ltd
2
 
#
3
 
# This program is free software; you can redistribute it and/or modify
4
 
# it under the terms of the GNU General Public License as published by
5
 
# the Free Software Foundation; either version 2 of the License, or
6
 
# (at your option) any later version.
7
 
#
8
 
# This program is distributed in the hope that it will be useful,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 
# GNU General Public License for more details.
12
 
#
13
 
# You should have received a copy of the GNU General Public License
14
 
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
 
 
17
 
 
18
 
"""Black-box tests for bzr branch."""
19
 
 
20
 
import os
21
 
 
22
 
from bzrlib import (
23
 
    branch,
24
 
    bzrdir,
25
 
    errors,
26
 
    repository,
27
 
    revision as _mod_revision,
28
 
    )
29
 
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit1
30
 
from bzrlib.tests.blackbox import ExternalBase
31
 
from bzrlib.tests import (
32
 
    KnownFailure,
33
 
    HardlinkFeature,
34
 
    test_server,
35
 
    )
36
 
from bzrlib.tests.test_sftp_transport import TestCaseWithSFTPServer
37
 
from bzrlib.urlutils import local_path_to_url, strip_trailing_slash
38
 
from bzrlib.workingtree import WorkingTree
39
 
 
40
 
 
41
 
class TestBranch(ExternalBase):
42
 
 
43
 
    def example_branch(self, path='.'):
44
 
        tree = self.make_branch_and_tree(path)
45
 
        self.build_tree_contents([(path + '/hello', 'foo')])
46
 
        tree.add('hello')
47
 
        tree.commit(message='setup')
48
 
        self.build_tree_contents([(path + '/goodbye', 'baz')])
49
 
        tree.add('goodbye')
50
 
        tree.commit(message='setup')
51
 
 
52
 
    def test_branch(self):
53
 
        """Branch from one branch to another."""
54
 
        self.example_branch('a')
55
 
        self.run_bzr('branch a b')
56
 
        b = branch.Branch.open('b')
57
 
        self.run_bzr('branch a c -r 1')
58
 
        # previously was erroneously created by branching
59
 
        self.assertFalse(b._transport.has('branch-name'))
60
 
        b.bzrdir.open_workingtree().commit(message='foo', allow_pointless=True)
61
 
 
62
 
    def test_branch_switch_no_branch(self):
63
 
        # No branch in the current directory:
64
 
        #  => new branch will be created, but switch fails
65
 
        self.example_branch('a')
66
 
        self.make_repository('current')
67
 
        self.run_bzr_error(['No WorkingTree exists for'],
68
 
            'branch --switch ../a ../b', working_dir='current')
69
 
        a = branch.Branch.open('a')
70
 
        b = branch.Branch.open('b')
71
 
        self.assertEqual(a.last_revision(), b.last_revision())
72
 
 
73
 
    def test_branch_switch_no_wt(self):
74
 
        # No working tree in the current directory:
75
 
        #  => new branch will be created, but switch fails and the current
76
 
        #     branch is unmodified
77
 
        self.example_branch('a')
78
 
        self.make_branch('current')
79
 
        self.run_bzr_error(['No WorkingTree exists for'],
80
 
            'branch --switch ../a ../b', working_dir='current')
81
 
        a = branch.Branch.open('a')
82
 
        b = branch.Branch.open('b')
83
 
        self.assertEqual(a.last_revision(), b.last_revision())
84
 
        work = branch.Branch.open('current')
85
 
        self.assertEqual(work.last_revision(), _mod_revision.NULL_REVISION)
86
 
 
87
 
    def test_branch_switch_no_checkout(self):
88
 
        # Standalone branch in the current directory:
89
 
        #  => new branch will be created, but switch fails and the current
90
 
        #     branch is unmodified
91
 
        self.example_branch('a')
92
 
        self.make_branch_and_tree('current')
93
 
        self.run_bzr_error(['Cannot switch a branch, only a checkout'],
94
 
            'branch --switch ../a ../b', working_dir='current')
95
 
        a = branch.Branch.open('a')
96
 
        b = branch.Branch.open('b')
97
 
        self.assertEqual(a.last_revision(), b.last_revision())
98
 
        work = branch.Branch.open('current')
99
 
        self.assertEqual(work.last_revision(), _mod_revision.NULL_REVISION)
100
 
 
101
 
    def test_branch_switch_checkout(self):
102
 
        # Checkout in the current directory:
103
 
        #  => new branch will be created and checkout bound to the new branch
104
 
        self.example_branch('a')
105
 
        self.run_bzr('checkout a current')
106
 
        out, err = self.run_bzr('branch --switch ../a ../b', working_dir='current')
107
 
        a = branch.Branch.open('a')
108
 
        b = branch.Branch.open('b')
109
 
        self.assertEqual(a.last_revision(), b.last_revision())
110
 
        work = WorkingTree.open('current')
111
 
        self.assertEndsWith(work.branch.get_bound_location(), '/b/')
112
 
        self.assertContainsRe(err, "Switched to branch: .*/b/")
113
 
 
114
 
    def test_branch_switch_lightweight_checkout(self):
115
 
        # Lightweight checkout in the current directory:
116
 
        #  => new branch will be created and lightweight checkout pointed to
117
 
        #     the new branch
118
 
        self.example_branch('a')
119
 
        self.run_bzr('checkout --lightweight a current')
120
 
        out, err = self.run_bzr('branch --switch ../a ../b', working_dir='current')
121
 
        a = branch.Branch.open('a')
122
 
        b = branch.Branch.open('b')
123
 
        self.assertEqual(a.last_revision(), b.last_revision())
124
 
        work = WorkingTree.open('current')
125
 
        self.assertEndsWith(work.branch.base, '/b/')
126
 
        self.assertContainsRe(err, "Switched to branch: .*/b/")
127
 
 
128
 
    def test_branch_only_copies_history(self):
129
 
        # Knit branches should only push the history for the current revision.
130
 
        format = bzrdir.BzrDirMetaFormat1()
131
 
        format.repository_format = RepositoryFormatKnit1()
132
 
        shared_repo = self.make_repository('repo', format=format, shared=True)
133
 
        shared_repo.set_make_working_trees(True)
134
 
 
135
 
        def make_shared_tree(path):
136
 
            shared_repo.bzrdir.root_transport.mkdir(path)
137
 
            shared_repo.bzrdir.create_branch_convenience('repo/' + path)
138
 
            return WorkingTree.open('repo/' + path)
139
 
        tree_a = make_shared_tree('a')
140
 
        self.build_tree(['repo/a/file'])
141
 
        tree_a.add('file')
142
 
        tree_a.commit('commit a-1', rev_id='a-1')
143
 
        f = open('repo/a/file', 'ab')
144
 
        f.write('more stuff\n')
145
 
        f.close()
146
 
        tree_a.commit('commit a-2', rev_id='a-2')
147
 
 
148
 
        tree_b = make_shared_tree('b')
149
 
        self.build_tree(['repo/b/file'])
150
 
        tree_b.add('file')
151
 
        tree_b.commit('commit b-1', rev_id='b-1')
152
 
 
153
 
        self.assertTrue(shared_repo.has_revision('a-1'))
154
 
        self.assertTrue(shared_repo.has_revision('a-2'))
155
 
        self.assertTrue(shared_repo.has_revision('b-1'))
156
 
 
157
 
        # Now that we have a repository with shared files, make sure
158
 
        # that things aren't copied out by a 'branch'
159
 
        self.run_bzr('branch repo/b branch-b')
160
 
        pushed_tree = WorkingTree.open('branch-b')
161
 
        pushed_repo = pushed_tree.branch.repository
162
 
        self.assertFalse(pushed_repo.has_revision('a-1'))
163
 
        self.assertFalse(pushed_repo.has_revision('a-2'))
164
 
        self.assertTrue(pushed_repo.has_revision('b-1'))
165
 
 
166
 
    def test_branch_hardlink(self):
167
 
        self.requireFeature(HardlinkFeature)
168
 
        source = self.make_branch_and_tree('source')
169
 
        self.build_tree(['source/file1'])
170
 
        source.add('file1')
171
 
        source.commit('added file')
172
 
        out, err = self.run_bzr(['branch', 'source', 'target', '--hardlink'])
173
 
        source_stat = os.stat('source/file1')
174
 
        target_stat = os.stat('target/file1')
175
 
        self.assertEqual(source_stat, target_stat)
176
 
 
177
 
    def test_branch_standalone(self):
178
 
        shared_repo = self.make_repository('repo', shared=True)
179
 
        self.example_branch('source')
180
 
        self.run_bzr('branch --standalone source repo/target')
181
 
        b = branch.Branch.open('repo/target')
182
 
        expected_repo_path = os.path.abspath('repo/target/.bzr/repository')
183
 
        self.assertEqual(strip_trailing_slash(b.repository.base),
184
 
            strip_trailing_slash(local_path_to_url(expected_repo_path)))
185
 
 
186
 
    def test_branch_no_tree(self):
187
 
        self.example_branch('source')
188
 
        self.run_bzr('branch --no-tree source target')
189
 
        self.failIfExists('target/hello')
190
 
        self.failIfExists('target/goodbye')
191
 
 
192
 
    def test_branch_into_existing_dir(self):
193
 
        self.example_branch('a')
194
 
        # existing dir with similar files but no .bzr dir
195
 
        self.build_tree_contents([('b/',)])
196
 
        self.build_tree_contents([('b/hello', 'bar')])  # different content
197
 
        self.build_tree_contents([('b/goodbye', 'baz')])# same content
198
 
        # fails without --use-existing-dir
199
 
        out,err = self.run_bzr('branch a b', retcode=3)
200
 
        self.assertEqual('', out)
201
 
        self.assertEqual('bzr: ERROR: Target directory "b" already exists.\n',
202
 
            err)
203
 
        # force operation
204
 
        self.run_bzr('branch a b --use-existing-dir')
205
 
        # check conflicts
206
 
        self.failUnlessExists('b/hello.moved')
207
 
        self.failIfExists('b/godbye.moved')
208
 
        # we can't branch into branch
209
 
        out,err = self.run_bzr('branch a b --use-existing-dir', retcode=3)
210
 
        self.assertEqual('', out)
211
 
        self.assertEqual('bzr: ERROR: Already a branch: "b".\n', err)
212
 
 
213
 
    def test_branch_bind(self):
214
 
        self.example_branch('a')
215
 
        out, err = self.run_bzr('branch a b --bind')
216
 
        self.assertEndsWith(err, "New branch bound to a\n")
217
 
        b = branch.Branch.open('b')
218
 
        self.assertEndsWith(b.get_bound_location(), '/a/')
219
 
 
220
 
 
221
 
class TestBranchStacked(ExternalBase):
222
 
    """Tests for branch --stacked"""
223
 
 
224
 
    def assertRevisionInRepository(self, repo_path, revid):
225
 
        """Check that a revision is in a repository, disregarding stacking."""
226
 
        repo = bzrdir.BzrDir.open(repo_path).open_repository()
227
 
        self.assertTrue(repo.has_revision(revid))
228
 
 
229
 
    def assertRevisionNotInRepository(self, repo_path, revid):
230
 
        """Check that a revision is not in a repository, disregarding stacking."""
231
 
        repo = bzrdir.BzrDir.open(repo_path).open_repository()
232
 
        self.assertFalse(repo.has_revision(revid))
233
 
 
234
 
    def assertRevisionsInBranchRepository(self, revid_list, branch_path):
235
 
        repo = branch.Branch.open(branch_path).repository
236
 
        self.assertEqual(set(revid_list),
237
 
            repo.has_revisions(revid_list))
238
 
 
239
 
    def test_branch_stacked_branch_not_stacked(self):
240
 
        """Branching a stacked branch is not stacked by default"""
241
 
        # We have a mainline
242
 
        trunk_tree = self.make_branch_and_tree('target',
243
 
            format='1.9')
244
 
        trunk_tree.commit('mainline')
245
 
        # and a branch from it which is stacked
246
 
        branch_tree = self.make_branch_and_tree('branch',
247
 
            format='1.9')
248
 
        branch_tree.branch.set_stacked_on_url(trunk_tree.branch.base)
249
 
        # with some work on it
250
 
        work_tree = trunk_tree.branch.bzrdir.sprout('local').open_workingtree()
251
 
        work_tree.commit('moar work plz')
252
 
        work_tree.branch.push(branch_tree.branch)
253
 
        # branching our local branch gives us a new stacked branch pointing at
254
 
        # mainline.
255
 
        out, err = self.run_bzr(['branch', 'branch', 'newbranch'])
256
 
        self.assertEqual('', out)
257
 
        self.assertEqual('Branched 2 revision(s).\n',
258
 
            err)
259
 
        # it should have preserved the branch format, and so it should be
260
 
        # capable of supporting stacking, but not actually have a stacked_on
261
 
        # branch configured
262
 
        self.assertRaises(errors.NotStacked,
263
 
            bzrdir.BzrDir.open('newbranch').open_branch().get_stacked_on_url)
264
 
 
265
 
    def test_branch_stacked_branch_stacked(self):
266
 
        """Asking to stack on a stacked branch does work"""
267
 
        # We have a mainline
268
 
        trunk_tree = self.make_branch_and_tree('target',
269
 
            format='1.9')
270
 
        trunk_revid = trunk_tree.commit('mainline')
271
 
        # and a branch from it which is stacked
272
 
        branch_tree = self.make_branch_and_tree('branch',
273
 
            format='1.9')
274
 
        branch_tree.branch.set_stacked_on_url(trunk_tree.branch.base)
275
 
        # with some work on it
276
 
        work_tree = trunk_tree.branch.bzrdir.sprout('local').open_workingtree()
277
 
        branch_revid = work_tree.commit('moar work plz')
278
 
        work_tree.branch.push(branch_tree.branch)
279
 
        # you can chain branches on from there
280
 
        out, err = self.run_bzr(['branch', 'branch', '--stacked', 'branch2'])
281
 
        self.assertEqual('', out)
282
 
        self.assertEqual('Created new stacked branch referring to %s.\n' %
283
 
            branch_tree.branch.base, err)
284
 
        self.assertEqual(branch_tree.branch.base,
285
 
            branch.Branch.open('branch2').get_stacked_on_url())
286
 
        branch2_tree = WorkingTree.open('branch2')
287
 
        branch2_revid = work_tree.commit('work on second stacked branch')
288
 
        work_tree.branch.push(branch2_tree.branch)
289
 
        self.assertRevisionInRepository('branch2', branch2_revid)
290
 
        self.assertRevisionsInBranchRepository(
291
 
            [trunk_revid, branch_revid, branch2_revid],
292
 
            'branch2')
293
 
 
294
 
    def test_branch_stacked(self):
295
 
        # We have a mainline
296
 
        trunk_tree = self.make_branch_and_tree('mainline',
297
 
            format='1.9')
298
 
        original_revid = trunk_tree.commit('mainline')
299
 
        self.assertRevisionInRepository('mainline', original_revid)
300
 
        # and a branch from it which is stacked
301
 
        out, err = self.run_bzr(['branch', '--stacked', 'mainline',
302
 
            'newbranch'])
303
 
        self.assertEqual('', out)
304
 
        self.assertEqual('Created new stacked branch referring to %s.\n' %
305
 
            trunk_tree.branch.base, err)
306
 
        self.assertRevisionNotInRepository('newbranch', original_revid)
307
 
        new_branch = branch.Branch.open('newbranch')
308
 
        self.assertEqual(trunk_tree.branch.base, new_branch.get_stacked_on_url())
309
 
 
310
 
    def test_branch_stacked_from_smart_server(self):
311
 
        # We can branch stacking on a smart server
312
 
        self.transport_server = test_server.SmartTCPServer_for_testing
313
 
        trunk = self.make_branch('mainline', format='1.9')
314
 
        out, err = self.run_bzr(
315
 
            ['branch', '--stacked', self.get_url('mainline'), 'shallow'])
316
 
 
317
 
    def test_branch_stacked_from_non_stacked_format(self):
318
 
        """The origin format doesn't support stacking"""
319
 
        trunk = self.make_branch('trunk', format='pack-0.92')
320
 
        out, err = self.run_bzr(
321
 
            ['branch', '--stacked', 'trunk', 'shallow'])
322
 
        # We should notify the user that we upgraded their format
323
 
        self.assertEqualDiff(
324
 
            'Source repository format does not support stacking, using format:\n'
325
 
            '  Packs 5 (adds stacking support, requires bzr 1.6)\n'
326
 
            'Source branch format does not support stacking, using format:\n'
327
 
            '  Branch format 7\n'
328
 
            'Created new stacked branch referring to %s.\n' % (trunk.base,),
329
 
            err)
330
 
 
331
 
    def test_branch_stacked_from_rich_root_non_stackable(self):
332
 
        trunk = self.make_branch('trunk', format='rich-root-pack')
333
 
        out, err = self.run_bzr(
334
 
            ['branch', '--stacked', 'trunk', 'shallow'])
335
 
        # We should notify the user that we upgraded their format
336
 
        self.assertEqualDiff(
337
 
            'Source repository format does not support stacking, using format:\n'
338
 
            '  Packs 5 rich-root (adds stacking support, requires bzr 1.6.1)\n'
339
 
            'Source branch format does not support stacking, using format:\n'
340
 
            '  Branch format 7\n'
341
 
            'Created new stacked branch referring to %s.\n' % (trunk.base,),
342
 
            err)
343
 
 
344
 
 
345
 
class TestSmartServerBranching(ExternalBase):
346
 
 
347
 
    def test_branch_from_trivial_branch_to_same_server_branch_acceptance(self):
348
 
        self.setup_smart_server_with_call_log()
349
 
        t = self.make_branch_and_tree('from')
350
 
        for count in range(9):
351
 
            t.commit(message='commit %d' % count)
352
 
        self.reset_smart_call_log()
353
 
        out, err = self.run_bzr(['branch', self.get_url('from'),
354
 
            self.get_url('target')])
355
 
        # This figure represent the amount of work to perform this use case. It
356
 
        # is entirely ok to reduce this number if a test fails due to rpc_count
357
 
        # being too low. If rpc_count increases, more network roundtrips have
358
 
        # become necessary for this use case. Please do not adjust this number
359
 
        # upwards without agreement from bzr's network support maintainers.
360
 
        self.assertLength(38, self.hpss_calls)
361
 
 
362
 
    def test_branch_from_trivial_branch_streaming_acceptance(self):
363
 
        self.setup_smart_server_with_call_log()
364
 
        t = self.make_branch_and_tree('from')
365
 
        for count in range(9):
366
 
            t.commit(message='commit %d' % count)
367
 
        self.reset_smart_call_log()
368
 
        out, err = self.run_bzr(['branch', self.get_url('from'),
369
 
            'local-target'])
370
 
        # This figure represent the amount of work to perform this use case. It
371
 
        # is entirely ok to reduce this number if a test fails due to rpc_count
372
 
        # being too low. If rpc_count increases, more network roundtrips have
373
 
        # become necessary for this use case. Please do not adjust this number
374
 
        # upwards without agreement from bzr's network support maintainers.
375
 
        self.assertLength(10, self.hpss_calls)
376
 
 
377
 
    def test_branch_from_trivial_stacked_branch_streaming_acceptance(self):
378
 
        self.setup_smart_server_with_call_log()
379
 
        t = self.make_branch_and_tree('trunk')
380
 
        for count in range(8):
381
 
            t.commit(message='commit %d' % count)
382
 
        tree2 = t.branch.bzrdir.sprout('feature', stacked=True
383
 
            ).open_workingtree()
384
 
        local_tree = t.branch.bzrdir.sprout('local-working').open_workingtree()
385
 
        local_tree.commit('feature change')
386
 
        local_tree.branch.push(tree2.branch)
387
 
        self.reset_smart_call_log()
388
 
        out, err = self.run_bzr(['branch', self.get_url('feature'),
389
 
            'local-target'])
390
 
        # This figure represent the amount of work to perform this use case. It
391
 
        # is entirely ok to reduce this number if a test fails due to rpc_count
392
 
        # being too low. If rpc_count increases, more network roundtrips have
393
 
        # become necessary for this use case. Please do not adjust this number
394
 
        # upwards without agreement from bzr's network support maintainers.
395
 
        self.assertLength(15, self.hpss_calls)
396
 
 
397
 
 
398
 
class TestRemoteBranch(TestCaseWithSFTPServer):
399
 
 
400
 
    def setUp(self):
401
 
        super(TestRemoteBranch, self).setUp()
402
 
        tree = self.make_branch_and_tree('branch')
403
 
        self.build_tree_contents([('branch/file', 'file content\n')])
404
 
        tree.add('file')
405
 
        tree.commit('file created')
406
 
 
407
 
    def test_branch_local_remote(self):
408
 
        self.run_bzr(['branch', 'branch', self.get_url('remote')])
409
 
        t = self.get_transport()
410
 
        # Ensure that no working tree what created remotely
411
 
        self.assertFalse(t.has('remote/file'))
412
 
 
413
 
    def test_branch_remote_remote(self):
414
 
        # Light cheat: we access the branch remotely
415
 
        self.run_bzr(['branch', self.get_url('branch'),
416
 
                      self.get_url('remote')])
417
 
        t = self.get_transport()
418
 
        # Ensure that no working tree what created remotely
419
 
        self.assertFalse(t.has('remote/file'))
420