/brz/remove-bazaar

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  • Committer: Robert Collins
  • Date: 2010-05-06 11:08:10 UTC
  • mto: This revision was merged to the branch mainline in revision 5223.
  • Revision ID: robertc@robertcollins.net-20100506110810-h3j07fh5gmw54s25
Cleaner matcher matching revised unlocking protocol.

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1
 
# Copyright (C) 2006-2009 Canonical Ltd
2
 
 
3
 
# Authors: Robert Collins <robert.collins@canonical.com>
4
 
#          Jelmer Vernooij <jelmer@samba.org>
5
 
#          John Carr <john.carr@unrouted.co.uk>
6
 
#
7
 
# This program is free software; you can redistribute it and/or modify
8
 
# it under the terms of the GNU General Public License as published by
9
 
# the Free Software Foundation; either version 2 of the License, or
10
 
# (at your option) any later version.
11
 
#
12
 
# This program is distributed in the hope that it will be useful,
13
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
 
# GNU General Public License for more details.
16
 
#
17
 
# You should have received a copy of the GNU General Public License
18
 
# along with this program; if not, write to the Free Software
19
 
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20
 
 
21
 
 
22
 
"""A GIT branch and repository format implementation for bzr."""
23
 
 
24
 
import os
25
 
import sys
26
 
 
27
 
import bzrlib
28
 
import bzrlib.api
29
 
 
30
 
from info import (
31
 
    bzr_compatible_versions,
32
 
    bzr_plugin_version as version_info,
33
 
    dulwich_minimum_version,
34
 
    )
35
 
 
36
 
if version_info[3] == 'final':
37
 
    version_string = '%d.%d.%d' % version_info[:3]
38
 
else:
39
 
    version_string = '%d.%d.%d%s%d' % version_info
40
 
__version__ = version_string
41
 
 
42
 
bzrlib.api.require_any_api(bzrlib, bzr_compatible_versions)
43
 
 
44
 
 
45
 
from bzrlib import (
46
 
    errors as bzr_errors,
47
 
    osutils,
48
 
    )
49
 
try:
50
 
    from bzrlib.controldir import (
51
 
        ControlDirFormat,
52
 
        ControlDir,
53
 
        Prober,
54
 
        format_registry,
55
 
        )
56
 
except ImportError:
57
 
    # bzr < 2.3
58
 
    from bzrlib.bzrdir import (
59
 
        BzrDirFormat,
60
 
        BzrDir,
61
 
        format_registry,
62
 
        )
63
 
    ControlDir = BzrDir
64
 
    ControlDirFormat = BzrDirFormat
65
 
    Prober = object
66
 
    has_controldir = False
67
 
else:
68
 
    has_controldir = True
69
 
 
70
 
from bzrlib.foreign import (
71
 
    foreign_vcs_registry,
72
 
    )
73
 
from bzrlib.help_topics import (
74
 
    topic_registry,
75
 
    )
76
 
from bzrlib.lockable_files import (
77
 
    TransportLock,
78
 
    )
79
 
from bzrlib.transport import (
80
 
    register_lazy_transport,
81
 
    register_transport_proto,
82
 
    )
83
 
from bzrlib.commands import (
84
 
    plugin_cmds,
85
 
    )
86
 
from bzrlib.version_info_formats.format_rio import (
87
 
    RioVersionInfoBuilder,
88
 
    )
89
 
from bzrlib.send import (
90
 
    format_registry as send_format_registry,
91
 
    )
92
 
 
93
 
 
94
 
if getattr(sys, "frozen", None):
95
 
    # allow import additional libs from ./_lib for bzr.exe only
96
 
    sys.path.append(os.path.normpath(
97
 
        os.path.join(os.path.dirname(__file__), '_lib')))
98
 
 
99
 
 
100
 
def import_dulwich():
101
 
    try:
102
 
        from dulwich import __version__ as dulwich_version
103
 
    except ImportError:
104
 
        raise bzr_errors.DependencyNotPresent("dulwich",
105
 
            "bzr-git: Please install dulwich, https://launchpad.net/dulwich")
106
 
    else:
107
 
        if dulwich_version < dulwich_minimum_version:
108
 
            raise bzr_errors.DependencyNotPresent("dulwich",
109
 
                "bzr-git: Dulwich is too old; at least %d.%d.%d is required" %
110
 
                    dulwich_minimum_version)
111
 
 
112
 
 
113
 
_versions_checked = False
114
 
def lazy_check_versions():
115
 
    global _versions_checked
116
 
    if _versions_checked:
117
 
        return
118
 
    import_dulwich()
119
 
    _versions_checked = True
120
 
 
121
 
format_registry.register_lazy('git',
122
 
    "bzrlib.plugins.git.dir", "LocalGitControlDirFormat",
123
 
    help='GIT repository.', native=False, experimental=False,
124
 
    )
125
 
 
126
 
format_registry.register_lazy('git-bare',
127
 
    "bzrlib.plugins.git.dir", "BareLocalGitControlDirFormat",
128
 
    help='Bare GIT repository (no working tree).', native=False,
129
 
    experimental=False,
130
 
    )
131
 
 
132
 
from bzrlib.revisionspec import revspec_registry
133
 
revspec_registry.register_lazy("git:", "bzrlib.plugins.git.revspec",
134
 
    "RevisionSpec_git")
135
 
 
136
 
try:
137
 
    from bzrlib.revisionspec import dwim_revspecs
138
 
except ImportError:
139
 
    pass
140
 
else:
141
 
    from bzrlib.plugins.git.revspec import RevisionSpec_git
142
 
    dwim_revspecs.append(RevisionSpec_git)
143
 
 
144
 
 
145
 
class GitControlDirFormat(ControlDirFormat):
146
 
 
147
 
    _lock_class = TransportLock
148
 
 
149
 
    colocated_branches = True
150
 
 
151
 
    def __eq__(self, other):
152
 
        return type(self) == type(other)
153
 
 
154
 
    def is_supported(self):
155
 
        return True
156
 
 
157
 
    def network_name(self):
158
 
        return "git"
159
 
 
160
 
 
161
 
class LocalGitProber(Prober):
162
 
 
163
 
    def probe_transport(self, transport):
164
 
        try:
165
 
            if not transport.has_any(['info/refs', '.git/branches',
166
 
                                      'branches']):
167
 
                raise bzr_errors.NotBranchError(path=transport.base)
168
 
        except bzr_errors.NoSuchFile:
169
 
            raise bzr_errors.NotBranchError(path=transport.base)
170
 
        from bzrlib import urlutils
171
 
        if urlutils.split(transport.base)[1] == ".git":
172
 
            raise bzr_errors.NotBranchError(path=transport.base)
173
 
        lazy_check_versions()
174
 
        import dulwich
175
 
        from bzrlib.plugins.git.transportgit import TransportRepo
176
 
        try:
177
 
            gitrepo = TransportRepo(transport)
178
 
        except dulwich.errors.NotGitRepository, e:
179
 
            raise bzr_errors.NotBranchError(path=transport.base)
180
 
        else:
181
 
            if gitrepo.bare:
182
 
                return BareLocalGitControlDirFormat()
183
 
            else:
184
 
                return LocalGitControlDirFormat()
185
 
 
186
 
 
187
 
class LocalGitControlDirFormat(GitControlDirFormat):
188
 
    """The .git directory control format."""
189
 
 
190
 
    bare = False
191
 
 
192
 
    @classmethod
193
 
    def _known_formats(self):
194
 
        return set([LocalGitControlDirFormat()])
195
 
 
196
 
    def open(self, transport, _found=None):
197
 
        """Open this directory.
198
 
 
199
 
        """
200
 
        lazy_check_versions()
201
 
        from bzrlib.plugins.git.transportgit import TransportRepo
202
 
        gitrepo = TransportRepo(transport)
203
 
        from bzrlib.plugins.git.dir import LocalGitDir, GitLockableFiles, GitLock
204
 
        lockfiles = GitLockableFiles(transport, GitLock())
205
 
        return LocalGitDir(transport, lockfiles, gitrepo, self)
206
 
 
207
 
    @classmethod
208
 
    def probe_transport(klass, transport):
209
 
        prober = LocalGitProber()
210
 
        return prober.probe_transport(transport)
211
 
 
212
 
    def get_format_description(self):
213
 
        return "Local Git Repository"
214
 
 
215
 
    def initialize_on_transport(self, transport):
216
 
        from bzrlib.transport.local import LocalTransport
217
 
 
218
 
        if not isinstance(transport, LocalTransport):
219
 
            raise NotImplementedError(self.initialize,
220
 
                "Can't create Git Repositories/branches on "
221
 
                "non-local transports")
222
 
        lazy_check_versions()
223
 
        from dulwich.repo import Repo
224
 
        Repo.init(transport.local_abspath(".").encode(osutils._fs_enc),
225
 
            bare=self.bare)
226
 
        return self.open(transport)
227
 
 
228
 
    def is_supported(self):
229
 
        return True
230
 
 
231
 
 
232
 
class BareLocalGitControlDirFormat(LocalGitControlDirFormat):
233
 
 
234
 
    bare = True
235
 
    supports_workingtrees = False
236
 
 
237
 
    @classmethod
238
 
    def _known_formats(self):
239
 
        return set([RemoteGitControlDirFormat()])
240
 
 
241
 
    def get_format_description(self):
242
 
        return "Local Git Repository (bare)"
243
 
 
244
 
 
245
 
class RemoteGitProber(Prober):
246
 
 
247
 
    def probe_transport(self, transport):
248
 
        url = transport.base
249
 
        if url.startswith('readonly+'):
250
 
            url = url[len('readonly+'):]
251
 
        if (not url.startswith("git://") and not url.startswith("git+")):
252
 
            raise bzr_errors.NotBranchError(transport.base)
253
 
        # little ugly, but works
254
 
        from bzrlib.plugins.git.remote import GitSmartTransport
255
 
        if not isinstance(transport, GitSmartTransport):
256
 
            raise bzr_errors.NotBranchError(transport.base)
257
 
        return RemoteGitControlDirFormat()
258
 
 
259
 
 
260
 
 
261
 
class RemoteGitControlDirFormat(GitControlDirFormat):
262
 
    """The .git directory control format."""
263
 
 
264
 
    supports_workingtrees = False
265
 
 
266
 
    @classmethod
267
 
    def _known_formats(self):
268
 
        return set([RemoteGitControlDirFormat()])
269
 
 
270
 
    def open(self, transport, _found=None):
271
 
        """Open this directory.
272
 
 
273
 
        """
274
 
        # we dont grok readonly - git isn't integrated with transport.
275
 
        url = transport.base
276
 
        if url.startswith('readonly+'):
277
 
            url = url[len('readonly+'):]
278
 
        if (not url.startswith("git://") and not url.startswith("git+")):
279
 
            raise bzr_errors.NotBranchError(transport.base)
280
 
        from bzrlib.plugins.git.remote import RemoteGitDir, GitSmartTransport
281
 
        if not isinstance(transport, GitSmartTransport):
282
 
            raise bzr_errors.NotBranchError(transport.base)
283
 
        from bzrlib.plugins.git.dir import GitLockableFiles, GitLock
284
 
        lockfiles = GitLockableFiles(transport, GitLock())
285
 
        return RemoteGitDir(transport, lockfiles, self)
286
 
 
287
 
    @classmethod
288
 
    def probe_transport(klass, transport):
289
 
        """Our format is present if the transport ends in '.not/'."""
290
 
        prober = RemoteGitProber()
291
 
        return prober.probe_transport(transport)
292
 
 
293
 
    def get_format_description(self):
294
 
        return "Remote Git Repository"
295
 
 
296
 
    def initialize_on_transport(self, transport):
297
 
        raise bzr_errors.UninitializableFormat(self)
298
 
 
299
 
 
300
 
if has_controldir:
301
 
    ControlDirFormat.register_format(LocalGitControlDirFormat())
302
 
    ControlDirFormat.register_format(BareLocalGitControlDirFormat())
303
 
    ControlDirFormat.register_format(RemoteGitControlDirFormat())
304
 
    ControlDirFormat.register_prober(LocalGitProber)
305
 
    ControlDirFormat.register_prober(RemoteGitProber)
306
 
else:
307
 
    ControlDirFormat.register_control_format(LocalGitControlDirFormat)
308
 
    ControlDirFormat.register_control_format(BareLocalGitControlDirFormat)
309
 
    ControlDirFormat.register_control_format(RemoteGitControlDirFormat)
310
 
 
311
 
register_transport_proto('git://',
312
 
        help="Access using the Git smart server protocol.")
313
 
register_transport_proto('git+ssh://',
314
 
        help="Access using the Git smart server protocol over SSH.")
315
 
 
316
 
register_lazy_transport("git://", 'bzrlib.plugins.git.remote',
317
 
                        'TCPGitSmartTransport')
318
 
register_lazy_transport("git+ssh://", 'bzrlib.plugins.git.remote',
319
 
                        'SSHGitSmartTransport')
320
 
 
321
 
foreign_vcs_registry.register_lazy("git",
322
 
    "bzrlib.plugins.git.mapping", "foreign_git", "Stupid content tracker")
323
 
 
324
 
plugin_cmds.register_lazy("cmd_git_import", [], "bzrlib.plugins.git.commands")
325
 
plugin_cmds.register_lazy("cmd_git_object", ["git-objects", "git-cat"],
326
 
    "bzrlib.plugins.git.commands")
327
 
plugin_cmds.register_lazy("cmd_git_refs", [], "bzrlib.plugins.git.commands")
328
 
plugin_cmds.register_lazy("cmd_git_apply", [], "bzrlib.plugins.git.commands")
329
 
 
330
 
def update_stanza(rev, stanza):
331
 
    mapping = getattr(rev, "mapping", None)
332
 
    if mapping is not None and mapping.revid_prefix.startswith("git-"):
333
 
        stanza.add("git-commit", rev.foreign_revid)
334
 
 
335
 
 
336
 
rio_hooks = getattr(RioVersionInfoBuilder, "hooks", None)
337
 
if rio_hooks is not None:
338
 
    rio_hooks.install_named_hook('revision', update_stanza, None)
339
 
 
340
 
 
341
 
from bzrlib.transport import transport_server_registry
342
 
transport_server_registry.register_lazy('git',
343
 
    'bzrlib.plugins.git.server',
344
 
    'serve_git',
345
 
    'Git Smart server protocol over TCP. (default port: 9418)')
346
 
 
347
 
 
348
 
from bzrlib.repository import (
349
 
    network_format_registry as repository_network_format_registry,
350
 
    )
351
 
repository_network_format_registry.register_lazy('git',
352
 
    'bzrlib.plugins.git.repository', 'GitRepositoryFormat')
353
 
 
354
 
try:
355
 
    from bzrlib.controldir import (
356
 
        network_format_registry as controldir_network_format_registry,
357
 
        )
358
 
except ImportError:
359
 
    from bzrlib.bzrdir import (
360
 
        network_format_registry as controldir_network_format_registry,
361
 
        )
362
 
controldir_network_format_registry.register('git', GitControlDirFormat)
363
 
 
364
 
send_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
365
 
                                   'send_git', 'Git am-style diff format')
366
 
 
367
 
topic_registry.register_lazy('git',
368
 
                             'bzrlib.plugins.git.help',
369
 
                             'help_git', 'Using Bazaar with Git')
370
 
 
371
 
try:
372
 
    from bzrlib.diff import format_registry as diff_format_registry
373
 
except ImportError:
374
 
    pass
375
 
else:
376
 
    diff_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
377
 
        'GitDiffTree', 'Git am-style diff format')
378
 
 
379
 
def test_suite():
380
 
    from bzrlib.plugins.git import tests
381
 
    return tests.test_suite()