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  • Committer: Gustav Hartvigsson
  • Date: 2021-01-09 21:36:27 UTC
  • Revision ID: gustav.hartvigsson@gmail.com-20210109213627-h1xwcutzy9m7a99b
Added 'Case Preserving Working Tree Use Cases' from Canonical Wiki

* Addod a page from the Canonical Bazaar wiki
  with information on the scmeatics of case
  perserving filesystems an a case insensitive
  filesystem works.
  
  * Needs re-work, but this will do as it is the
    same inforamoton as what was on the linked
    page in the currint documentation.

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breezy/tests/test_upgrade.py
 
1
# Copyright (C) 2005-2011 Canonical Ltd
 
2
#
 
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# This program is free software; you can redistribute it and/or modify
 
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# 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
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# 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
"""Tests for upgrade of old trees.
 
18
 
 
19
This file contains canned versions of some old trees, which are instantiated
 
20
and then upgraded to the new format."""
 
21
 
 
22
# TODO queue for upgrade:
 
23
# test the error message when upgrading an unknown BzrDir format.
 
24
 
 
25
from .. import (
 
26
    branch,
 
27
    controldir,
 
28
    tests,
 
29
    upgrade,
 
30
    )
 
31
from ..bzr import (
 
32
    branch as bzrbranch,
 
33
    workingtree,
 
34
    workingtree_4,
 
35
    )
 
36
 
 
37
 
 
38
class TestUpgrade(tests.TestCaseWithTransport):
 
39
 
 
40
    def test_upgrade_rich_root(self):
 
41
        tree = self.make_branch_and_tree('tree', format='rich-root')
 
42
        tree.commit('first post')
 
43
        upgrade.upgrade('tree')
 
44
 
 
45
    def test_convert_branch5_branch6(self):
 
46
        b = self.make_branch('branch', format='knit')
 
47
        b._set_revision_history([b'CD'])
 
48
        b.set_parent('file:///EF')
 
49
        b.set_bound_location('file:///GH')
 
50
        b.set_push_location('file:///IJ')
 
51
        target = controldir.format_registry.make_controldir(
 
52
            'dirstate-with-subtree')
 
53
        converter = b.controldir._format.get_converter(target)
 
54
        converter.convert(b.controldir, None)
 
55
        new_branch = branch.Branch.open(self.get_url('branch'))
 
56
        self.assertIs(new_branch.__class__, bzrbranch.BzrBranch6)
 
57
        self.assertEqual(b'CD', new_branch.last_revision())
 
58
        self.assertEqual('file:///EF', new_branch.get_parent())
 
59
        self.assertEqual('file:///GH', new_branch.get_bound_location())
 
60
        branch_config = new_branch.get_config_stack()
 
61
        self.assertEqual('file:///IJ', branch_config.get('push_location'))
 
62
 
 
63
        b2 = self.make_branch('branch2', format='knit')
 
64
        converter = b2.controldir._format.get_converter(target)
 
65
        converter.convert(b2.controldir, None)
 
66
        b2 = branch.Branch.open(self.get_url('branch'))
 
67
        self.assertIs(b2.__class__, bzrbranch.BzrBranch6)
 
68
 
 
69
    def test_convert_branch7_branch8(self):
 
70
        b = self.make_branch('branch', format='1.9')
 
71
        target = controldir.format_registry.make_controldir('1.9')
 
72
        target.set_branch_format(bzrbranch.BzrBranchFormat8())
 
73
        converter = b.controldir._format.get_converter(target)
 
74
        converter.convert(b.controldir, None)
 
75
        b = branch.Branch.open(self.get_url('branch'))
 
76
        self.assertIs(b.__class__, bzrbranch.BzrBranch8)
 
77
        self.assertEqual({}, b._get_all_reference_info())
 
78
 
 
79
    def test_convert_knit_dirstate_empty(self):
 
80
        # test that asking for an upgrade from knit to dirstate works.
 
81
        tree = self.make_branch_and_tree('tree', format='knit')
 
82
        target = controldir.format_registry.make_controldir('dirstate')
 
83
        converter = tree.controldir._format.get_converter(target)
 
84
        converter.convert(tree.controldir, None)
 
85
        new_tree = workingtree.WorkingTree.open('tree')
 
86
        self.assertIs(new_tree.__class__, workingtree_4.WorkingTree4)
 
87
        self.assertEqual(b'null:', new_tree.last_revision())
 
88
 
 
89
    def test_convert_knit_dirstate_content(self):
 
90
        # smoke test for dirstate conversion: we call dirstate primitives,
 
91
        # and its there that the core logic is tested.
 
92
        tree = self.make_branch_and_tree('tree', format='knit')
 
93
        self.build_tree(['tree/file'])
 
94
        tree.add(['file'], [b'file-id'])
 
95
        target = controldir.format_registry.make_controldir('dirstate')
 
96
        converter = tree.controldir._format.get_converter(target)
 
97
        converter.convert(tree.controldir, None)
 
98
        new_tree = workingtree.WorkingTree.open('tree')
 
99
        self.assertIs(new_tree.__class__, workingtree_4.WorkingTree4)
 
100
        self.assertEqual(b'null:', new_tree.last_revision())
 
101
 
 
102
    def test_convert_knit_one_parent_dirstate(self):
 
103
        # test that asking for an upgrade from knit to dirstate works.
 
104
        tree = self.make_branch_and_tree('tree', format='knit')
 
105
        rev_id = tree.commit('first post')
 
106
        target = controldir.format_registry.make_controldir('dirstate')
 
107
        converter = tree.controldir._format.get_converter(target)
 
108
        converter.convert(tree.controldir, None)
 
109
        new_tree = workingtree.WorkingTree.open('tree')
 
110
        self.assertIs(new_tree.__class__, workingtree_4.WorkingTree4)
 
111
        self.assertEqual(rev_id, new_tree.last_revision())
 
112
        for path in ['basis-inventory-cache', 'inventory', 'last-revision',
 
113
                     'pending-merges', 'stat-cache']:
 
114
            self.assertPathDoesNotExist('tree/.bzr/checkout/' + path)
 
115
 
 
116
    def test_convert_knit_merges_dirstate(self):
 
117
        tree = self.make_branch_and_tree('tree', format='knit')
 
118
        tree.commit('first post')
 
119
        merge_tree = tree.controldir.sprout('tree2').open_workingtree()
 
120
        rev_id2 = tree.commit('second post')
 
121
        rev_id3 = merge_tree.commit('second merge post')
 
122
        tree.merge_from_branch(merge_tree.branch)
 
123
        target = controldir.format_registry.make_controldir('dirstate')
 
124
        converter = tree.controldir._format.get_converter(target)
 
125
        converter.convert(tree.controldir, None)
 
126
        new_tree = workingtree.WorkingTree.open('tree')
 
127
        self.assertIs(new_tree.__class__, workingtree_4.WorkingTree4)
 
128
        self.assertEqual(rev_id2, new_tree.last_revision())
 
129
        self.assertEqual([rev_id2, rev_id3], new_tree.get_parent_ids())
 
130
        for path in ['basis-inventory-cache', 'inventory', 'last-revision',
 
131
                     'pending-merges', 'stat-cache']:
 
132
            self.assertPathDoesNotExist('tree/.bzr/checkout/' + path)
 
133
 
 
134
 
 
135
class TestSmartUpgrade(tests.TestCaseWithTransport):
 
136
 
 
137
    from_format = controldir.format_registry.make_controldir("pack-0.92")
 
138
    to_format = controldir.format_registry.make_controldir("2a")
 
139
 
 
140
    def make_standalone_branch(self):
 
141
        wt = self.make_branch_and_tree("branch1", format=self.from_format)
 
142
        return wt.controldir
 
143
 
 
144
    def test_upgrade_standalone_branch(self):
 
145
        control = self.make_standalone_branch()
 
146
        tried, worked, issues = upgrade.smart_upgrade(
 
147
            [control], format=self.to_format)
 
148
        self.assertLength(1, tried)
 
149
        self.assertEqual(tried[0], control)
 
150
        self.assertLength(1, worked)
 
151
        self.assertEqual(worked[0], control)
 
152
        self.assertLength(0, issues)
 
153
        self.assertPathExists('branch1/backup.bzr.~1~')
 
154
        self.assertEqual(control.open_repository()._format,
 
155
                         self.to_format._repository_format)
 
156
 
 
157
    def test_upgrade_standalone_branch_cleanup(self):
 
158
        control = self.make_standalone_branch()
 
159
        tried, worked, issues = upgrade.smart_upgrade(
 
160
            [control], format=self.to_format, clean_up=True)
 
161
        self.assertLength(1, tried)
 
162
        self.assertEqual(tried[0], control)
 
163
        self.assertLength(1, worked)
 
164
        self.assertEqual(worked[0], control)
 
165
        self.assertLength(0, issues)
 
166
        self.assertPathExists('branch1')
 
167
        self.assertPathExists('branch1/.bzr')
 
168
        self.assertPathDoesNotExist('branch1/backup.bzr.~1~')
 
169
        self.assertEqual(control.open_repository()._format,
 
170
                         self.to_format._repository_format)
 
171
 
 
172
    def make_repo_with_branches(self):
 
173
        repo = self.make_repository('repo', shared=True,
 
174
                                    format=self.from_format)
 
175
        # Note: self.make_branch() always creates a new repo at the location
 
176
        # so we need to avoid using that here ...
 
177
        controldir.ControlDir.create_branch_convenience(
 
178
            "repo/branch1", format=self.from_format)
 
179
        b2 = controldir.ControlDir.create_branch_convenience(
 
180
            "repo/branch2", format=self.from_format)
 
181
        return repo.controldir
 
182
 
 
183
    def test_upgrade_repo_with_branches(self):
 
184
        control = self.make_repo_with_branches()
 
185
        tried, worked, issues = upgrade.smart_upgrade(
 
186
            [control], format=self.to_format)
 
187
        self.assertLength(3, tried)
 
188
        self.assertEqual(tried[0], control)
 
189
        self.assertLength(3, worked)
 
190
        self.assertEqual(worked[0], control)
 
191
        self.assertLength(0, issues)
 
192
        self.assertPathExists('repo/backup.bzr.~1~')
 
193
        self.assertPathExists('repo/branch1/backup.bzr.~1~')
 
194
        self.assertPathExists('repo/branch2/backup.bzr.~1~')
 
195
        self.assertEqual(control.open_repository()._format,
 
196
                         self.to_format._repository_format)
 
197
        b1 = branch.Branch.open('repo/branch1')
 
198
        self.assertEqual(b1._format, self.to_format._branch_format)
 
199
 
 
200
    def test_upgrade_repo_with_branches_cleanup(self):
 
201
        control = self.make_repo_with_branches()
 
202
        tried, worked, issues = upgrade.smart_upgrade(
 
203
            [control], format=self.to_format, clean_up=True)
 
204
        self.assertLength(3, tried)
 
205
        self.assertEqual(tried[0], control)
 
206
        self.assertLength(3, worked)
 
207
        self.assertEqual(worked[0], control)
 
208
        self.assertLength(0, issues)
 
209
        self.assertPathExists('repo')
 
210
        self.assertPathExists('repo/.bzr')
 
211
        self.assertPathDoesNotExist('repo/backup.bzr.~1~')
 
212
        self.assertPathDoesNotExist('repo/branch1/backup.bzr.~1~')
 
213
        self.assertPathDoesNotExist('repo/branch2/backup.bzr.~1~')
 
214
        self.assertEqual(control.open_repository()._format,
 
215
                         self.to_format._repository_format)
 
216
        b1 = branch.Branch.open('repo/branch1')
 
217
        self.assertEqual(b1._format, self.to_format._branch_format)