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__init__.py
1
 
# Copyright (C) 2006 Canonical Ltd
 
1
# Copyright (C) 2006-2009 Canonical Ltd
 
2
 
2
3
# Authors: Robert Collins <robert.collins@canonical.com>
 
4
#          Jelmer Vernooij <jelmer@samba.org>
 
5
#          John Carr <john.carr@unrouted.co.uk>
3
6
#
4
7
# This program is free software; you can redistribute it and/or modify
5
8
# it under the terms of the GNU General Public License as published by
18
21
 
19
22
"""A GIT branch and repository format implementation for bzr."""
20
23
 
21
 
try:
22
 
    import dulwich as git
23
 
except ImportError:
24
 
    import os, sys
25
 
    sys.path.insert(0, os.path.join(os.path.dirname(__file__), "dulwich"))
26
 
    import dulwich as git
27
 
from bzrlib import bzrdir
28
 
from bzrlib.foreign import ForeignVcs, VcsMappingRegistry, foreign_vcs_registry
29
 
from bzrlib.plugins.git.dir import LocalGitBzrDirFormat, RemoteGitBzrDirFormat
30
 
from bzrlib.transport import register_lazy_transport
31
 
from bzrlib.commands import Command, register_command
32
 
from bzrlib.option import Option
33
 
 
34
 
bzrdir.format_registry.register(
35
 
    'git', LocalGitBzrDirFormat,
36
 
    help='GIT repository.', 
37
 
    native=False, experimental=True,
38
 
    )
39
 
 
40
 
bzrdir.BzrDirFormat.register_control_format(LocalGitBzrDirFormat)
41
 
bzrdir.BzrDirFormat.register_control_format(RemoteGitBzrDirFormat)
 
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
from bzrlib.revisionspec import revspec_registry
 
127
revspec_registry.register_lazy("git:", "bzrlib.plugins.git.revspec",
 
128
    "RevisionSpec_git")
 
129
 
 
130
try:
 
131
    from bzrlib.revisionspec import dwim_revspecs
 
132
except ImportError:
 
133
    pass
 
134
else:
 
135
    from bzrlib.plugins.git.revspec import RevisionSpec_git
 
136
    dwim_revspecs.append(RevisionSpec_git)
 
137
 
 
138
 
 
139
class GitControlDirFormat(ControlDirFormat):
 
140
 
 
141
    _lock_class = TransportLock
 
142
 
 
143
    colocated_branches = True
 
144
 
 
145
    def __eq__(self, other):
 
146
        return type(self) == type(other)
 
147
 
 
148
    def is_supported(self):
 
149
        return True
 
150
 
 
151
    def network_name(self):
 
152
        return "git"
 
153
 
 
154
 
 
155
class LocalGitProber(Prober):
 
156
 
 
157
    def probe_transport(self, transport):
 
158
        try:
 
159
            if not transport.has_any(['info/refs', '.git/branches',
 
160
                                      'branches']):
 
161
                raise bzr_errors.NotBranchError(path=transport.base)
 
162
        except bzr_errors.NoSuchFile:
 
163
            raise bzr_errors.NotBranchError(path=transport.base)
 
164
        from bzrlib import urlutils
 
165
        if urlutils.split(transport.base)[1] == ".git":
 
166
            raise bzr_errors.NotBranchError(path=transport.base)
 
167
        lazy_check_versions()
 
168
        import dulwich
 
169
        format = LocalGitControlDirFormat()
 
170
        try:
 
171
            format.open(transport)
 
172
            return format
 
173
        except dulwich.errors.NotGitRepository, e:
 
174
            raise bzr_errors.NotBranchError(path=transport.base)
 
175
        raise bzr_errors.NotBranchError(path=transport.base)
 
176
 
 
177
 
 
178
class LocalGitControlDirFormat(GitControlDirFormat):
 
179
    """The .git directory control format."""
 
180
 
 
181
    @classmethod
 
182
    def _known_formats(self):
 
183
        return set([LocalGitControlDirFormat()])
 
184
 
 
185
    def open(self, transport, _found=None):
 
186
        """Open this directory.
 
187
 
 
188
        """
 
189
        lazy_check_versions()
 
190
        from bzrlib.plugins.git.transportgit import TransportRepo
 
191
        gitrepo = TransportRepo(transport)
 
192
        from bzrlib.plugins.git.dir import LocalGitDir, GitLockableFiles, GitLock
 
193
        lockfiles = GitLockableFiles(transport, GitLock())
 
194
        return LocalGitDir(transport, lockfiles, gitrepo, self)
 
195
 
 
196
    @classmethod
 
197
    def probe_transport(klass, transport):
 
198
        prober = LocalGitProber()
 
199
        return prober.probe_transport(transport)
 
200
 
 
201
    def get_format_description(self):
 
202
        return "Local Git Repository"
 
203
 
 
204
    def get_format_string(self):
 
205
        return "Local Git Repository"
 
206
 
 
207
    def initialize_on_transport(self, transport):
 
208
        from bzrlib.transport.local import LocalTransport
 
209
 
 
210
        if not isinstance(transport, LocalTransport):
 
211
            raise NotImplementedError(self.initialize,
 
212
                "Can't create Git Repositories/branches on "
 
213
                "non-local transports")
 
214
        lazy_check_versions()
 
215
        from dulwich.repo import Repo
 
216
        Repo.init(transport.local_abspath(".").encode(osutils._fs_enc))
 
217
        return self.open(transport)
 
218
 
 
219
    def is_supported(self):
 
220
        return True
 
221
 
 
222
 
 
223
class RemoteGitProber(Prober):
 
224
 
 
225
    def probe_transport(self, transport):
 
226
        url = transport.base
 
227
        if url.startswith('readonly+'):
 
228
            url = url[len('readonly+'):]
 
229
        if (not url.startswith("git://") and not url.startswith("git+")):
 
230
            raise bzr_errors.NotBranchError(transport.base)
 
231
        # little ugly, but works
 
232
        format = RemoteGitControlDirFormat()
 
233
        from bzrlib.plugins.git.remote import GitSmartTransport
 
234
        if not isinstance(transport, GitSmartTransport):
 
235
            raise bzr_errors.NotBranchError(transport.base)
 
236
        return format
 
237
 
 
238
 
 
239
 
 
240
class RemoteGitControlDirFormat(GitControlDirFormat):
 
241
    """The .git directory control format."""
 
242
 
 
243
    supports_workingtrees = False
 
244
 
 
245
    @classmethod
 
246
    def _known_formats(self):
 
247
        return set([RemoteGitControlDirFormat()])
 
248
 
 
249
    def open(self, transport, _found=None):
 
250
        """Open this directory.
 
251
 
 
252
        """
 
253
        # we dont grok readonly - git isn't integrated with transport.
 
254
        url = transport.base
 
255
        if url.startswith('readonly+'):
 
256
            url = url[len('readonly+'):]
 
257
        if (not url.startswith("git://") and not url.startswith("git+")):
 
258
            raise bzr_errors.NotBranchError(transport.base)
 
259
        from bzrlib.plugins.git.remote import RemoteGitDir, GitSmartTransport
 
260
        if not isinstance(transport, GitSmartTransport):
 
261
            raise bzr_errors.NotBranchError(transport.base)
 
262
        from bzrlib.plugins.git.dir import GitLockableFiles, GitLock
 
263
        lockfiles = GitLockableFiles(transport, GitLock())
 
264
        return RemoteGitDir(transport, lockfiles, self)
 
265
 
 
266
    @classmethod
 
267
    def probe_transport(klass, transport):
 
268
        """Our format is present if the transport ends in '.not/'."""
 
269
        prober = RemoteGitProber()
 
270
        return prober.probe_transport(transport)
 
271
 
 
272
    def get_format_description(self):
 
273
        return "Remote Git Repository"
 
274
 
 
275
    def get_format_string(self):
 
276
        return "Remote Git Repository"
 
277
 
 
278
    def initialize_on_transport(self, transport):
 
279
        raise bzr_errors.UninitializableFormat(self)
 
280
 
 
281
 
 
282
if has_controldir:
 
283
    ControlDirFormat.register_format(LocalGitControlDirFormat())
 
284
    ControlDirFormat.register_format(RemoteGitControlDirFormat())
 
285
    ControlDirFormat.register_prober(LocalGitProber)
 
286
    ControlDirFormat.register_prober(RemoteGitProber)
 
287
else:
 
288
    ControlDirFormat.register_control_format(LocalGitControlDirFormat)
 
289
    ControlDirFormat.register_control_format(RemoteGitControlDirFormat)
 
290
 
 
291
register_transport_proto('git://',
 
292
        help="Access using the Git smart server protocol.")
 
293
register_transport_proto('git+ssh://',
 
294
        help="Access using the Git smart server protocol over SSH.")
42
295
 
43
296
register_lazy_transport("git://", 'bzrlib.plugins.git.remote',
44
 
                        'GitSmartTransport')
45
 
 
46
 
 
47
 
class ForeignGit(ForeignVcs):
48
 
    """Foreign Git."""
49
 
 
50
 
 
51
 
git_mapping_registry = VcsMappingRegistry()
52
 
git_mapping_registry.register_lazy('git-experimental', "bzrlib.plugins.git.mapping",
53
 
                                   "BzrGitMappingExperimental")
54
 
foreign_vcs_registry.register("git", ForeignGit(git_mapping_registry), 
55
 
                                      "Stupid content tracker")
56
 
 
57
 
 
58
 
class cmd_git_serve(Command):
59
 
    """Provide access to a Bazaar branch using the git protocol.
60
 
 
61
 
    This command is experimental and doesn't do much yet.
62
 
    """
63
 
    takes_options = [
64
 
        Option('inet',
65
 
               help='serve on stdin/out for use from inetd or sshd'),
66
 
        Option('directory',
67
 
               help='serve contents of directory',
68
 
               type=unicode)
69
 
    ]
70
 
 
71
 
    def run(self, inet=None, port=None, directory=None):
72
 
        from dulwich.server import TCPGitServer
73
 
        from bzrlib.plugins.git.server import BzrBackend
74
 
        from bzrlib.trace import warning
75
 
        import os
76
 
 
77
 
        warning("server support in bzr-git is experimental.")
78
 
 
79
 
        if directory is None:
80
 
            directory = os.getcwd()
81
 
 
82
 
        backend = BzrBackend(directory)
83
 
 
84
 
        if inet:
85
 
            #def send_fn(data):
86
 
            #    sys.stdout.write(data)
87
 
            #    sys.stdout.flush()
88
 
            #server = GitServer(sys.stdin.read, send_fn)
89
 
            raise NotImplementedError
90
 
        else:
91
 
            server = TCPGitServer(backend, 'localhost')
92
 
            server.serve_forever()
93
 
 
94
 
register_command(cmd_git_serve)
95
 
 
 
297
                        'TCPGitSmartTransport')
 
298
register_lazy_transport("git+ssh://", 'bzrlib.plugins.git.remote',
 
299
                        'SSHGitSmartTransport')
 
300
 
 
301
foreign_vcs_registry.register_lazy("git",
 
302
    "bzrlib.plugins.git.mapping", "foreign_git", "Stupid content tracker")
 
303
 
 
304
plugin_cmds.register_lazy("cmd_git_import", [], "bzrlib.plugins.git.commands")
 
305
plugin_cmds.register_lazy("cmd_git_object", ["git-objects", "git-cat"],
 
306
    "bzrlib.plugins.git.commands")
 
307
plugin_cmds.register_lazy("cmd_git_refs", [], "bzrlib.plugins.git.commands")
 
308
plugin_cmds.register_lazy("cmd_git_apply", [], "bzrlib.plugins.git.commands")
 
309
 
 
310
def update_stanza(rev, stanza):
 
311
    mapping = getattr(rev, "mapping", None)
 
312
    if mapping is not None and mapping.revid_prefix.startswith("git-"):
 
313
        stanza.add("git-commit", rev.foreign_revid)
 
314
 
 
315
 
 
316
rio_hooks = getattr(RioVersionInfoBuilder, "hooks", None)
 
317
if rio_hooks is not None:
 
318
    rio_hooks.install_named_hook('revision', update_stanza, None)
 
319
 
 
320
 
 
321
from bzrlib.transport import transport_server_registry
 
322
transport_server_registry.register_lazy('git',
 
323
    'bzrlib.plugins.git.server',
 
324
    'serve_git',
 
325
    'Git Smart server protocol over TCP. (default port: 9418)')
 
326
 
 
327
 
 
328
from bzrlib.repository import (
 
329
    network_format_registry as repository_network_format_registry,
 
330
    )
 
331
repository_network_format_registry.register_lazy('git',
 
332
    'bzrlib.plugins.git.repository', 'GitRepositoryFormat')
 
333
 
 
334
try:
 
335
    from bzrlib.controldir import (
 
336
        network_format_registry as controldir_network_format_registry,
 
337
        )
 
338
except ImportError:
 
339
    from bzrlib.bzrdir import (
 
340
        network_format_registry as controldir_network_format_registry,
 
341
        )
 
342
controldir_network_format_registry.register('git', GitControlDirFormat)
 
343
 
 
344
send_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
 
345
                                   'send_git', 'Git am-style diff format')
 
346
 
 
347
topic_registry.register_lazy('git',
 
348
                             'bzrlib.plugins.git.help',
 
349
                             'help_git', 'Using Bazaar with Git')
 
350
 
 
351
try:
 
352
    from bzrlib.diff import format_registry as diff_format_registry
 
353
except ImportError:
 
354
    pass
 
355
else:
 
356
    diff_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
 
357
        'GitDiffTree', 'Git am-style diff format')
96
358
 
97
359
def test_suite():
98
360
    from bzrlib.plugins.git import tests