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# Copyright (C) 2007 Canonical Ltd
 
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#
 
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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
 
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# 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
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for interfacing with a Git Repository"""
 
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import dulwich
 
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from dulwich.repo import (
 
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    Repo as GitRepo,
 
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    )
 
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import os
 
24
 
 
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from bzrlib import (
 
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    errors,
 
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    revision,
 
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    )
 
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from bzrlib.repository import (
 
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    InterRepository,
 
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    Repository,
 
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    )
 
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from bzrlib.plugins.git import (
 
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    dir,
 
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    repository,
 
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    tests,
 
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    )
 
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from bzrlib.plugins.git.mapping import (
 
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    default_mapping,
 
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    )
 
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from bzrlib.plugins.git.object_store import (
 
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    BazaarObjectStore,
 
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    )
 
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from bzrlib.plugins.git.push import (
 
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    MissingObjectsIterator,
 
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    )
 
48
 
 
49
class TestGitRepositoryFeatures(tests.TestCaseInTempDir):
 
50
    """Feature tests for GitRepository."""
 
51
 
 
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    def _do_commit(self):
 
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        builder = tests.GitBranchBuilder()
 
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        builder.set_file('a', 'text for a\n', False)
 
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        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message')
 
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        mapping = builder.finish()
 
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        return mapping[commit_handle]
 
58
 
 
59
    def test_open_existing(self):
 
60
        GitRepo.init(self.test_dir)
 
61
 
 
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        repo = Repository.open('.')
 
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        self.assertIsInstance(repo, repository.GitRepository)
 
64
 
 
65
    def test_has_git_repo(self):
 
66
        GitRepo.init(self.test_dir)
 
67
 
 
68
        repo = Repository.open('.')
 
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        self.assertIsInstance(repo._git, dulwich.repo.BaseRepo)
 
70
 
 
71
    def test_has_revision(self):
 
72
        GitRepo.init(self.test_dir)
 
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        commit_id = self._do_commit()
 
74
        repo = Repository.open('.')
 
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        self.assertFalse(repo.has_revision('foobar'))
 
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        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
77
        self.assertTrue(repo.has_revision(revid))
 
78
 
 
79
    def test_has_revisions(self):
 
80
        GitRepo.init(self.test_dir)
 
81
        commit_id = self._do_commit()
 
82
        repo = Repository.open('.')
 
83
        self.assertEquals(set(), repo.has_revisions(['foobar']))
 
84
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
85
        self.assertEquals(set([revid]), repo.has_revisions(['foobar', revid]))
 
86
 
 
87
    def test_get_revision(self):
 
88
        # GitRepository.get_revision gives a Revision object.
 
89
 
 
90
        # Create a git repository with a revision.
 
91
        GitRepo.init(self.test_dir)
 
92
        commit_id = self._do_commit()
 
93
 
 
94
        # Get the corresponding Revision object.
 
95
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
96
        repo = Repository.open('.')
 
97
        rev = repo.get_revision(revid)
 
98
        self.assertIsInstance(rev, revision.Revision)
 
99
 
 
100
    def test_get_revision_unknown(self):
 
101
        GitRepo.init(self.test_dir)
 
102
 
 
103
        repo = Repository.open('.')
 
104
        self.assertRaises(errors.NoSuchRevision, repo.get_revision, "bla")
 
105
 
 
106
    def simple_commit(self):
 
107
        # Create a git repository with some interesting files in a revision.
 
108
        GitRepo.init(self.test_dir)
 
109
        builder = tests.GitBranchBuilder()
 
110
        builder.set_file('data', 'text\n', False)
 
111
        builder.set_file('executable', 'content', True)
 
112
        builder.set_link('link', 'broken')
 
113
        builder.set_file('subdir/subfile', 'subdir text\n', False)
 
114
        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message',
 
115
            timestamp=1205433193)
 
116
        mapping = builder.finish()
 
117
        return mapping[commit_handle]
 
118
 
 
119
    def test_pack(self):
 
120
        commit_id = self.simple_commit()
 
121
        repo = Repository.open('.')
 
122
        repo.pack()
 
123
 
 
124
    def test_revision_tree(self):
 
125
        commit_id = self.simple_commit()
 
126
        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)
 
127
        repo = Repository.open('.')
 
128
        tree = repo.revision_tree(revid)
 
129
        self.assertEquals(tree.get_revision_id(), revid)
 
130
        self.assertEquals("text\n", tree.get_file_text(tree.path2id("data")))
 
131
 
 
132
 
 
133
class TestGitRepository(tests.TestCaseWithTransport):
 
134
 
 
135
    def _do_commit(self):
 
136
        builder = tests.GitBranchBuilder()
 
137
        builder.set_file('a', 'text for a\n', False)
 
138
        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message')
 
139
        mapping = builder.finish()
 
140
        return mapping[commit_handle]
 
141
 
 
142
    def setUp(self):
 
143
        tests.TestCaseWithTransport.setUp(self)
 
144
        dulwich.repo.Repo.create(self.test_dir)
 
145
        self.git_repo = Repository.open(self.test_dir)
 
146
 
 
147
    def test_supports_rich_root(self):
 
148
        repo = self.git_repo
 
149
        self.assertEqual(repo.supports_rich_root(), True)
 
150
 
 
151
    def test_get_signature_text(self):
 
152
        self.assertRaises(errors.NoSuchRevision, self.git_repo.get_signature_text, revision.NULL_REVISION)
 
153
 
 
154
    def test_has_signature_for_revision_id(self):
 
155
        self.assertEquals(False, self.git_repo.has_signature_for_revision_id(revision.NULL_REVISION))
 
156
 
 
157
    def test_all_revision_ids_none(self):
 
158
        self.assertEquals(set([]), self.git_repo.all_revision_ids())
 
159
 
 
160
    def test_get_known_graph_ancestry(self):
 
161
        cid = self._do_commit()
 
162
        revid = default_mapping.revision_id_foreign_to_bzr(cid)
 
163
        g = self.git_repo.get_known_graph_ancestry([revid])
 
164
        self.assertEquals(frozenset([revid]),
 
165
            g.heads([revid]))
 
166
        self.assertEqual([(revid, 0, (1,), True)],
 
167
            [(n.key, n.merge_depth, n.revno, n.end_of_merge)
 
168
                 for n in g.merge_sort(revid)])
 
169
 
 
170
    def test_all_revision_ids(self):
 
171
        commit_id = self._do_commit()
 
172
        self.assertEquals(
 
173
                set([default_mapping.revision_id_foreign_to_bzr(commit_id)]),
 
174
                self.git_repo.all_revision_ids())
 
175
 
 
176
    def assertIsNullInventory(self, inv):
 
177
        self.assertEqual(inv.root, None)
 
178
        self.assertEqual(inv.revision_id, revision.NULL_REVISION)
 
179
        self.assertEqual(list(inv.iter_entries()), [])
 
180
 
 
181
    def test_revision_tree_none(self):
 
182
        # GitRepository.revision_tree(None) returns the null tree.
 
183
        repo = self.git_repo
 
184
        tree = repo.revision_tree(revision.NULL_REVISION)
 
185
        self.assertEqual(tree.get_revision_id(), revision.NULL_REVISION)
 
186
 
 
187
    def test_get_parent_map_null(self):
 
188
        self.assertEquals({revision.NULL_REVISION: ()}, 
 
189
                           self.git_repo.get_parent_map([revision.NULL_REVISION]))
 
190
 
 
191
 
 
192
class GitRepositoryFormat(tests.TestCase):
 
193
 
 
194
    def setUp(self):
 
195
        super(GitRepositoryFormat, self).setUp()
 
196
        self.format = repository.GitRepositoryFormat()
 
197
 
 
198
    def test_get_format_description(self):
 
199
        self.assertEquals("Git Repository", self.format.get_format_description())
 
200
 
 
201
 
 
202
class RevisionGistImportTests(tests.TestCaseWithTransport):
 
203
 
 
204
    def setUp(self):
 
205
        tests.TestCaseWithTransport.setUp(self)
 
206
        self.git_path = os.path.join(self.test_dir, "git")
 
207
        os.mkdir(self.git_path)
 
208
        dulwich.repo.Repo.create(self.git_path)
 
209
        self.git_repo = Repository.open(self.git_path)
 
210
        self.bzr_tree = self.make_branch_and_tree("bzr")
 
211
 
 
212
    def get_inter(self):
 
213
        return InterRepository.get(self.bzr_tree.branch.repository, 
 
214
                                   self.git_repo)
 
215
 
 
216
    def object_iter(self):
 
217
        store = BazaarObjectStore(self.bzr_tree.branch.repository, default_mapping)
 
218
        store_iterator = MissingObjectsIterator(store, self.bzr_tree.branch.repository)
 
219
        return store, store_iterator
 
220
 
 
221
    def import_rev(self, revid, parent_lookup=None):
 
222
        store, store_iter = self.object_iter()
 
223
        store._cache.idmap.start_write_group()
 
224
        try:
 
225
            return store_iter.import_revision(revid, roundtrip=False)
 
226
        except:
 
227
            store._cache.idmap.abort_write_group()
 
228
            raise
 
229
        else:
 
230
            store._cache.idmap.commit_write_group()
 
231
 
 
232
    def test_pointless(self):
 
233
        revid = self.bzr_tree.commit("pointless", timestamp=1205433193,
 
234
                timezone=0,
 
235
                  committer="Jelmer Vernooij <jelmer@samba.org>")
 
236
        self.assertEquals("2caa8094a5b794961cd9bf582e3e2bb090db0b14", 
 
237
                self.import_rev(revid))
 
238
        self.assertEquals("2caa8094a5b794961cd9bf582e3e2bb090db0b14", 
 
239
                self.import_rev(revid))
 
240
 
 
241
 
 
242
class ForeignTestsRepositoryFactory(object):
 
243
 
 
244
    def make_repository(self, transport):
 
245
        return dir.LocalGitControlDirFormat().initialize_on_transport(transport).open_repository()