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More work on roundtrip push support.

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1
# Copyright (C) 2007 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
16
 
 
17
"""Tests for interfacing with a Git Repository"""
 
18
 
 
19
import dulwich
 
20
from dulwich.repo import (
 
21
    Repo as GitRepo,
 
22
    )
 
23
import os
 
24
 
 
25
from bzrlib import (
 
26
    errors,
 
27
    inventory,
 
28
    revision,
 
29
    )
 
30
from bzrlib.repository import (
 
31
    InterRepository,
 
32
    Repository,
 
33
    )
 
34
 
 
35
from bzrlib.plugins.git import (
 
36
    dir,
 
37
    repository,
 
38
    tests,
 
39
    )
 
40
from bzrlib.plugins.git.mapping import (
 
41
    default_mapping,
 
42
    )
 
43
from bzrlib.plugins.git.object_store import (
 
44
    BazaarObjectStore,
 
45
    )
 
46
from bzrlib.plugins.git.push import (
 
47
    MissingObjectsIterator,
 
48
    )
 
49
 
 
50
class TestGitRepositoryFeatures(tests.TestCaseInTempDir):
 
51
    """Feature tests for GitRepository."""
 
52
 
 
53
    def _do_commit(self):
 
54
        builder = tests.GitBranchBuilder()
 
55
        builder.set_file('a', 'text for a\n', False)
 
56
        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message')
 
57
        mapping = builder.finish()
 
58
        return mapping[commit_handle]
 
59
 
 
60
    def test_open_existing(self):
 
61
        GitRepo.init(self.test_dir)
 
62
 
 
63
        repo = Repository.open('.')
 
64
        self.assertIsInstance(repo, repository.GitRepository)
 
65
 
 
66
    def test_has_git_repo(self):
 
67
        GitRepo.init(self.test_dir)
 
68
 
 
69
        repo = Repository.open('.')
 
70
        self.assertIsInstance(repo._git, dulwich.repo.BaseRepo)
 
71
 
 
72
    def test_has_revision(self):
 
73
        GitRepo.init(self.test_dir)
 
74
        commit_id = self._do_commit()
 
75
        repo = Repository.open('.')
 
76
        self.assertFalse(repo.has_revision('foobar'))
 
77
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
78
        self.assertTrue(repo.has_revision(revid))
 
79
 
 
80
    def test_has_revisions(self):
 
81
        GitRepo.init(self.test_dir)
 
82
        commit_id = self._do_commit()
 
83
        repo = Repository.open('.')
 
84
        self.assertEquals(set(), repo.has_revisions(['foobar']))
 
85
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
86
        self.assertEquals(set([revid]), repo.has_revisions(['foobar', revid]))
 
87
 
 
88
    def test_get_revision(self):
 
89
        # GitRepository.get_revision gives a Revision object.
 
90
 
 
91
        # Create a git repository with a revision.
 
92
        GitRepo.init(self.test_dir)
 
93
        commit_id = self._do_commit()
 
94
 
 
95
        # Get the corresponding Revision object.
 
96
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
97
        repo = Repository.open('.')
 
98
        rev = repo.get_revision(revid)
 
99
        self.assertIsInstance(rev, revision.Revision)
 
100
 
 
101
    def test_get_revision_unknown(self):
 
102
        GitRepo.init(self.test_dir)
 
103
 
 
104
        repo = Repository.open('.')
 
105
        self.assertRaises(errors.NoSuchRevision, repo.get_revision, "bla")
 
106
 
 
107
    def simple_commit(self):
 
108
        # Create a git repository with some interesting files in a revision.
 
109
        GitRepo.init(self.test_dir)
 
110
        builder = tests.GitBranchBuilder()
 
111
        builder.set_file('data', 'text\n', False)
 
112
        builder.set_file('executable', 'content', True)
 
113
        builder.set_link('link', 'broken')
 
114
        builder.set_file('subdir/subfile', 'subdir text\n', False)
 
115
        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message',
 
116
            timestamp=1205433193)
 
117
        mapping = builder.finish()
 
118
        return mapping[commit_handle]
 
119
 
 
120
    def test_pack(self):
 
121
        commit_id = self.simple_commit()
 
122
        repo = Repository.open('.')
 
123
        repo.pack()
 
124
 
 
125
    def test_revision_tree(self):
 
126
        commit_id = self.simple_commit()
 
127
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
128
        repo = Repository.open('.')
 
129
        tree = repo.revision_tree(revid)
 
130
        self.assertEquals(tree.get_revision_id(), revid)
 
131
        self.assertEquals("text\n", tree.get_file_text(tree.path2id("data")))
 
132
 
 
133
    def test_get_inventory(self):
 
134
        # GitRepository.get_inventory gives a GitInventory object with
 
135
        # plausible entries for typical cases.
 
136
 
 
137
        commit_id = self.simple_commit()
 
138
 
 
139
        # Get the corresponding Inventory object.
 
140
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
141
        repo = Repository.open('.')
 
142
        inv = repo.get_inventory(revid)
 
143
        self.assertIsInstance(inv, inventory.Inventory)
 
144
        printed_inv = '\n'.join(
 
145
            repr((path, entry.executable, entry))
 
146
            for path, entry in inv.iter_entries())
 
147
        self.assertEqualDiff(
 
148
            printed_inv,
 
149
            "('', False, GitInventoryDirectory('TREE_ROOT', u'', parent_id=None,"
 
150
            " revision='"+default_mapping.revision_id_foreign_to_bzr("69c39cfa65962f3cf16b9b3eb08a15954e9d8590")+"'))\n"
 
151
            "(u'data', False, GitInventoryFile('data', u'data',"
 
152
            " parent_id='TREE_ROOT',"
 
153
            " sha1='aa785adca3fcdfe1884ae840e13c6d294a2414e8', len=5, revision="+default_mapping.revid_prefix+":69c39cfa65962f3cf16b9b3eb08a15954e9d8590))\n"
 
154
            "(u'executable', True, GitInventoryFile('executable', u'executable',"
 
155
            " parent_id='TREE_ROOT',"
 
156
            " sha1='040f06fd774092478d450774f5ba30c5da78acc8', len=7, revision="+default_mapping.revid_prefix+":69c39cfa65962f3cf16b9b3eb08a15954e9d8590))\n"
 
157
            "(u'link', False, GitInventoryLink('link', u'link',"
 
158
            " parent_id='TREE_ROOT', revision='"+default_mapping.revision_id_foreign_to_bzr("69c39cfa65962f3cf16b9b3eb08a15954e9d8590")+"'))\n"
 
159
            "(u'subdir', False, GitInventoryDirectory('subdir', u'subdir',"
 
160
            " parent_id='TREE_ROOT', revision='"+default_mapping.revision_id_foreign_to_bzr("69c39cfa65962f3cf16b9b3eb08a15954e9d8590")+"'))\n"
 
161
            "(u'subdir/subfile', False, GitInventoryFile('subdir/subfile',"
 
162
            " u'subfile', parent_id='subdir',"
 
163
            " sha1='67b75c3e49f31fcadddbf9df6a1d8be8c3e44290', len=12, revision="+default_mapping.revid_prefix+":69c39cfa65962f3cf16b9b3eb08a15954e9d8590))")
 
164
 
 
165
 
 
166
class TestGitRepository(tests.TestCaseWithTransport):
 
167
 
 
168
    def _do_commit(self):
 
169
        builder = tests.GitBranchBuilder()
 
170
        builder.set_file('a', 'text for a\n', False)
 
171
        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message')
 
172
        mapping = builder.finish()
 
173
        return mapping[commit_handle]
 
174
 
 
175
    def setUp(self):
 
176
        tests.TestCaseWithTransport.setUp(self)
 
177
        dulwich.repo.Repo.create(self.test_dir)
 
178
        self.git_repo = Repository.open(self.test_dir)
 
179
 
 
180
    def test_supports_rich_root(self):
 
181
        repo = self.git_repo
 
182
        self.assertEqual(repo.supports_rich_root(), True)
 
183
 
 
184
    def test_get_signature_text(self):
 
185
        self.assertRaises(errors.NoSuchRevision, self.git_repo.get_signature_text, revision.NULL_REVISION)
 
186
 
 
187
    def test_has_signature_for_revision_id(self):
 
188
        self.assertEquals(False, self.git_repo.has_signature_for_revision_id(revision.NULL_REVISION))
 
189
 
 
190
    def test_all_revision_ids_none(self):
 
191
        self.assertEquals(set([]), self.git_repo.all_revision_ids())
 
192
 
 
193
    def test_all_revision_ids(self):
 
194
        commit_id = self._do_commit()
 
195
        self.assertEquals(
 
196
                set([default_mapping.revision_id_foreign_to_bzr(commit_id)]),
 
197
                self.git_repo.all_revision_ids())
 
198
 
 
199
    def test_get_ancestry_null(self):
 
200
        self.assertEquals([None, revision.NULL_REVISION], self.git_repo.get_ancestry(revision.NULL_REVISION))
 
201
 
 
202
    def assertIsNullInventory(self, inv):
 
203
        self.assertEqual(inv.root, None)
 
204
        self.assertEqual(inv.revision_id, revision.NULL_REVISION)
 
205
        self.assertEqual(list(inv.iter_entries()), [])
 
206
 
 
207
    def test_get_inventory_none(self):
 
208
        # GitRepository.get_inventory(None) returns the null inventory.
 
209
        repo = self.git_repo
 
210
        inv = repo.get_inventory(revision.NULL_REVISION)
 
211
        self.assertIsNullInventory(inv)
 
212
 
 
213
    def test_revision_tree_none(self):
 
214
        # GitRepository.revision_tree(None) returns the null tree.
 
215
        repo = self.git_repo
 
216
        tree = repo.revision_tree(revision.NULL_REVISION)
 
217
        self.assertEqual(tree.get_revision_id(), revision.NULL_REVISION)
 
218
        self.assertIsNullInventory(tree.inventory)
 
219
 
 
220
    def test_get_parent_map_null(self):
 
221
        self.assertEquals({revision.NULL_REVISION: ()}, 
 
222
                           self.git_repo.get_parent_map([revision.NULL_REVISION]))
 
223
 
 
224
 
 
225
class GitRepositoryFormat(tests.TestCase):
 
226
 
 
227
    def setUp(self):
 
228
        super(GitRepositoryFormat, self).setUp()
 
229
        self.format = repository.GitRepositoryFormat()
 
230
 
 
231
    def test_get_format_description(self):
 
232
        self.assertEquals("Git Repository", self.format.get_format_description())
 
233
 
 
234
 
 
235
class RevisionGistImportTests(tests.TestCaseWithTransport):
 
236
 
 
237
    def setUp(self):
 
238
        tests.TestCaseWithTransport.setUp(self)
 
239
        self.git_path = os.path.join(self.test_dir, "git")
 
240
        os.mkdir(self.git_path)
 
241
        dulwich.repo.Repo.create(self.git_path)
 
242
        self.git_repo = Repository.open(self.git_path)
 
243
        self.bzr_tree = self.make_branch_and_tree("bzr")
 
244
 
 
245
    def get_inter(self):
 
246
        return InterRepository.get(self.bzr_tree.branch.repository, 
 
247
                                   self.git_repo)
 
248
 
 
249
    def object_iter(self):
 
250
        store = BazaarObjectStore(self.bzr_tree.branch.repository, default_mapping)
 
251
        store_iterator = MissingObjectsIterator(store, self.bzr_tree.branch.repository)
 
252
        return store, store_iterator
 
253
 
 
254
    def import_rev(self, revid, parent_lookup=None):
 
255
        store, store_iter = self.object_iter()
 
256
        store._cache.idmap.start_write_group()
 
257
        try:
 
258
            return store_iter.import_revision(revid, roundtrip=False)
 
259
        except:
 
260
            store._cache.idmap.abort_write_group()
 
261
            raise
 
262
        else:
 
263
            store._cache.idmap.commit_write_group()
 
264
 
 
265
    def test_pointless(self):
 
266
        revid = self.bzr_tree.commit("pointless", timestamp=1205433193,
 
267
                timezone=0,
 
268
                  committer="Jelmer Vernooij <jelmer@samba.org>")
 
269
        self.assertEquals("2caa8094a5b794961cd9bf582e3e2bb090db0b14", 
 
270
                self.import_rev(revid))
 
271
        self.assertEquals("2caa8094a5b794961cd9bf582e3e2bb090db0b14", 
 
272
                self.import_rev(revid))
 
273
 
 
274
 
 
275
class ForeignTestsRepositoryFactory(object):
 
276
 
 
277
    def make_repository(self, transport):
 
278
        return dir.LocalGitControlDirFormat().initialize_on_transport(transport).open_repository()