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__init__.py
44
44
 
45
45
from bzrlib import (
46
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
 
47
    )
 
48
 
 
49
from bzrlib.controldir import (
 
50
    ControlDirFormat,
 
51
    Prober,
 
52
    format_registry,
 
53
    network_format_registry as controldir_network_format_registry,
 
54
    )
69
55
 
70
56
from bzrlib.foreign import (
71
57
    foreign_vcs_registry,
73
59
from bzrlib.help_topics import (
74
60
    topic_registry,
75
61
    )
76
 
from bzrlib.lockable_files import (
77
 
    TransportLock,
78
 
    )
79
62
from bzrlib.transport import (
80
63
    register_lazy_transport,
81
64
    register_transport_proto,
83
66
from bzrlib.commands import (
84
67
    plugin_cmds,
85
68
    )
86
 
from bzrlib.version_info_formats.format_rio import (
87
 
    RioVersionInfoBuilder,
88
 
    )
89
69
from bzrlib.send import (
90
70
    format_registry as send_format_registry,
91
71
    )
133
113
revspec_registry.register_lazy("git:", "bzrlib.plugins.git.revspec",
134
114
    "RevisionSpec_git")
135
115
 
136
 
try:
137
 
    from bzrlib.revisionspec import dwim_revspecs
138
 
except ImportError:
139
 
    pass
140
 
else:
 
116
from bzrlib.revisionspec import dwim_revspecs, RevisionSpec_dwim
 
117
if getattr(RevisionSpec_dwim, "append_possible_lazy_revspec", None):
 
118
    RevisionSpec_dwim.append_possible_lazy_revspec(
 
119
        "bzrlib.plugins.git.revspec", "RevisionSpec_git")
 
120
else: # bzr < 2.4
141
121
    from bzrlib.plugins.git.revspec import RevisionSpec_git
142
122
    dwim_revspecs.append(RevisionSpec_git)
143
123
 
144
124
 
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
125
class LocalGitProber(Prober):
162
126
 
163
127
    def probe_transport(self, transport):
164
128
        try:
165
 
            if not transport.has_any(['info/refs', '.git/branches',
166
 
                                      'branches']):
 
129
            if not transport.has_any(['.git/HEAD', 'HEAD', 'objects', '.git/objects']):
167
130
                raise bzr_errors.NotBranchError(path=transport.base)
168
131
        except bzr_errors.NoSuchFile:
169
132
            raise bzr_errors.NotBranchError(path=transport.base)
178
141
        except dulwich.errors.NotGitRepository, e:
179
142
            raise bzr_errors.NotBranchError(path=transport.base)
180
143
        else:
 
144
            from bzrlib.plugins.git.dir import (
 
145
                BareLocalGitControlDirFormat,
 
146
                LocalGitControlDirFormat,
 
147
                )
181
148
            if gitrepo.bare:
182
149
                return BareLocalGitControlDirFormat()
183
150
            else:
184
151
                return LocalGitControlDirFormat()
185
152
 
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)"
 
153
    @classmethod
 
154
    def known_formats(cls):
 
155
        from bzrlib.plugins.git.dir import (
 
156
            BareLocalGitControlDirFormat,
 
157
            LocalGitControlDirFormat,
 
158
            )
 
159
        return set([BareLocalGitControlDirFormat(), LocalGitControlDirFormat()])
243
160
 
244
161
 
245
162
class RemoteGitProber(Prober):
246
163
 
 
164
    def probe_http_transport(self, transport):
 
165
        from bzrlib import urlutils
 
166
        url = urlutils.join(transport.external_url(), "info/refs") + "?service=git-upload-pack"
 
167
        from bzrlib.transport.http._urllib import HttpTransport_urllib, Request
 
168
        if isinstance(transport, HttpTransport_urllib):
 
169
            req = Request('GET', url, accepted_errors=[200, 403, 404, 405],
 
170
                          headers={"Content-Type": "application/x-git-upload-pack-request"})
 
171
            req.follow_redirections = True
 
172
            resp = transport._perform(req)
 
173
            if resp.code == 404:
 
174
                raise bzr_errors.NotBranchError(transport.base)
 
175
            headers = resp.headers
 
176
        else:
 
177
            try:
 
178
                from bzrlib.transport.http._pycurl import PyCurlTransport
 
179
            except bzr_errors.DependencyNotPresent:
 
180
                raise bzr_errors.NotBranchError(transport.base)
 
181
            else:
 
182
                import pycurl
 
183
                from cStringIO import StringIO
 
184
                if isinstance(transport, PyCurlTransport):
 
185
                    conn = transport._get_curl()
 
186
                    conn.setopt(pycurl.URL, url)
 
187
                    transport._set_curl_options(conn)
 
188
                    conn.setopt(pycurl.HTTPGET, 1)
 
189
                    conn.setopt(pycurl.NOBODY, 1)
 
190
                    header = StringIO()
 
191
                    data = StringIO()
 
192
                    conn.setopt(pycurl.HEADERFUNCTION, header.write)
 
193
                    conn.setopt(pycurl.WRITEFUNCTION, data.write)
 
194
                    transport._curl_perform(conn, header,
 
195
                        ["Content-Type: application/x-git-upload-pack-request"])
 
196
                    code = conn.getinfo(pycurl.HTTP_CODE)
 
197
                    if code == 404:
 
198
                        raise bzr_errors.NotBranchError(transport.base)
 
199
                    headers = transport._parse_headers(header)
 
200
                else:
 
201
                    raise bzr_errors.NotBranchError(transport.base)
 
202
        ct = headers.getheader("Content-Type")
 
203
        if ct.startswith("application/x-git"):
 
204
            from bzrlib.plugins.git.remote import RemoteGitControlDirFormat
 
205
            return RemoteGitControlDirFormat()
 
206
        else:
 
207
            from bzrlib.plugins.git.dir import (
 
208
                BareLocalGitControlDirFormat,
 
209
                )
 
210
            return BareLocalGitControlDirFormat()
 
211
 
247
212
    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+")):
 
213
        try:
 
214
            external_url = transport.external_url()
 
215
        except bzr_errors.InProcessTransport:
 
216
            raise bzr_errors.NotBranchError(path=transport.base)
 
217
 
 
218
        if (external_url.startswith("http:") or
 
219
            external_url.startswith("https:")):
 
220
            return self.probe_http_transport(transport)
 
221
 
 
222
        if (not external_url.startswith("git://") and
 
223
            not external_url.startswith("git+")):
252
224
            raise bzr_errors.NotBranchError(transport.base)
 
225
 
253
226
        # 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
 
227
        from bzrlib.plugins.git.remote import (
 
228
            GitSmartTransport,
 
229
            RemoteGitControlDirFormat,
 
230
            )
 
231
        if isinstance(transport, GitSmartTransport):
 
232
            return RemoteGitControlDirFormat()
 
233
        raise bzr_errors.NotBranchError(path=transport.base)
265
234
 
266
235
    @classmethod
267
 
    def _known_formats(self):
 
236
    def known_formats(cls):
 
237
        from bzrlib.plugins.git.remote import RemoteGitControlDirFormat
268
238
        return set([RemoteGitControlDirFormat()])
269
239
 
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:
 
240
 
 
241
if not getattr(Prober, "known_formats", None): # bzr < 2.4
 
242
    from bzrlib.plugins.git.dir import (
 
243
        LocalGitControlDirFormat, BareLocalGitControlDirFormat,
 
244
        )
 
245
    from bzrlib.plugins.git.remote import RemoteGitControlDirFormat
301
246
    ControlDirFormat.register_format(LocalGitControlDirFormat())
302
247
    ControlDirFormat.register_format(BareLocalGitControlDirFormat())
303
248
    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)
 
249
    # Provide RevisionTree.get_file_revision, so various parts of bzr-svn
 
250
    # can avoid inventories.
 
251
    from bzrlib.revisiontree import RevisionTree
 
252
    def get_file_revision(tree, file_id, path=None):
 
253
        return tree.inventory[file_id].revision
 
254
    RevisionTree.get_file_revision = get_file_revision
 
255
 
 
256
ControlDirFormat.register_prober(LocalGitProber)
 
257
ControlDirFormat._server_probers.insert(0, RemoteGitProber)
310
258
 
311
259
register_transport_proto('git://',
312
260
        help="Access using the Git smart server protocol.")
319
267
                        'SSHGitSmartTransport')
320
268
 
321
269
foreign_vcs_registry.register_lazy("git",
322
 
    "bzrlib.plugins.git.mapping", "foreign_git", "Stupid content tracker")
 
270
    "bzrlib.plugins.git.mapping", "foreign_vcs_git", "Stupid content tracker")
323
271
 
324
272
plugin_cmds.register_lazy("cmd_git_import", [], "bzrlib.plugins.git.commands")
325
273
plugin_cmds.register_lazy("cmd_git_object", ["git-objects", "git-cat"],
327
275
plugin_cmds.register_lazy("cmd_git_refs", [], "bzrlib.plugins.git.commands")
328
276
plugin_cmds.register_lazy("cmd_git_apply", [], "bzrlib.plugins.git.commands")
329
277
 
 
278
def extract_git_foreign_revid(rev):
 
279
    try:
 
280
        foreign_revid = rev.foreign_revid
 
281
    except AttributeError:
 
282
        from bzrlib.plugins.git.mapping import mapping_registry
 
283
        foreign_revid, mapping = \
 
284
            mapping_registry.parse_revision_id(rev.revision_id)
 
285
        return foreign_revid
 
286
    else:
 
287
        from bzrlib.plugins.git.mapping import foreign_vcs_git
 
288
        if rev.mapping.vcs == foreign_vcs_git:
 
289
            return foreign_revid
 
290
        else:
 
291
            raise bzr_errors.InvalidRevisionId(rev.revision_id, None)
 
292
 
 
293
 
330
294
def update_stanza(rev, stanza):
331
295
    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)
 
296
    try:
 
297
        git_commit = extract_git_foreign_revid(rev)
 
298
    except bzr_errors.InvalidRevisionId:
 
299
        pass
 
300
    else:
 
301
        stanza.add("git-commit", git_commit)
 
302
 
 
303
try:
 
304
    from bzrlib.hooks import install_lazy_named_hook
 
305
except ImportError: # Compatibility with bzr < 2.4
 
306
    from bzrlib.version_info_formats.format_rio import (
 
307
        RioVersionInfoBuilder,
 
308
        )
 
309
    RioVersionInfoBuilder.hooks.install_named_hook('revision', update_stanza,
 
310
        "git commits")
 
311
else:
 
312
    install_lazy_named_hook("bzrlib.version_info_formats.format_rio",
 
313
        "RioVersionInfoBuilder.hooks", "revision", update_stanza,
 
314
        "git commits")
339
315
 
340
316
 
341
317
from bzrlib.transport import transport_server_registry
346
322
 
347
323
 
348
324
from bzrlib.repository import (
 
325
    format_registry as repository_format_registry,
349
326
    network_format_registry as repository_network_format_registry,
350
327
    )
351
328
repository_network_format_registry.register_lazy('git',
352
329
    'bzrlib.plugins.git.repository', 'GitRepositoryFormat')
353
330
 
354
331
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)
 
332
    register_extra_lazy_repository_format = getattr(repository_format_registry,
 
333
        "register_extra_lazy")
 
334
except AttributeError: # bzr < 2.4
 
335
    pass
 
336
else:
 
337
    register_extra_lazy_repository_format('bzrlib.plugins.git.repository',
 
338
        'GitRepositoryFormat')
 
339
 
 
340
from bzrlib.branch import (
 
341
    network_format_registry as branch_network_format_registry,
 
342
    )
 
343
branch_network_format_registry.register_lazy('git',
 
344
    'bzrlib.plugins.git.branch', 'GitBranchFormat')
 
345
 
 
346
try:
 
347
    from bzrlib.branch import (
 
348
        format_registry as branch_format_registry,
 
349
        )
 
350
except ImportError: # bzr < 2.4
 
351
    pass
 
352
else:
 
353
    branch_format_registry.register_extra_lazy(
 
354
        'bzrlib.plugins.git.branch',
 
355
        'GitBranchFormat',
 
356
        )
 
357
 
 
358
try:
 
359
    from bzrlib.workingtree import (
 
360
        format_registry as workingtree_format_registry,
 
361
        )
 
362
except ImportError: # bzr < 2.4
 
363
    pass
 
364
else:
 
365
    workingtree_format_registry.register_extra_lazy(
 
366
        'bzrlib.plugins.git.workingtree',
 
367
        'GitWorkingTreeFormat',
 
368
        )
 
369
 
 
370
controldir_network_format_registry.register_lazy('git',
 
371
    "bzrlib.plugins.git.dir", "GitControlDirFormat")
363
372
 
364
373
send_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
365
374
                                   'send_git', 'Git am-style diff format')
366
375
 
367
 
topic_registry.register_lazy('git',
368
 
                             'bzrlib.plugins.git.help',
369
 
                             'help_git', 'Using Bazaar with Git')
 
376
topic_registry.register_lazy('git', 'bzrlib.plugins.git.help', 'help_git',
 
377
    'Using Bazaar with Git')
 
378
 
 
379
from bzrlib.diff import format_registry as diff_format_registry
 
380
diff_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
 
381
    'GitDiffTree', 'Git am-style diff format')
 
382
 
 
383
 
 
384
def update_git_cache(repository, revid):
 
385
    """Update the git cache after a local commit."""
 
386
    if getattr(repository, "_git", None) is not None:
 
387
        return # No need to update cache for git repositories
 
388
 
 
389
    from bzrlib.plugins.git.object_store import BazaarObjectStore
 
390
    if not repository.control_transport.has("git"):
 
391
        return # No existing cache, don't bother updating
 
392
    store = BazaarObjectStore(repository)
 
393
    store.lock_write()
 
394
    try:
 
395
        parent_revisions = set(repository.get_parent_map([revid])[revid])
 
396
        missing_revisions = store._missing_revisions(parent_revisions)
 
397
        if not missing_revisions:
 
398
            # Only update if the cache was up to date previously
 
399
            store._update_sha_map_revision(revid)
 
400
    finally:
 
401
        store.unlock()
 
402
 
 
403
 
 
404
def post_commit_update_cache(local_branch, master_branch, old_revno, old_revid,
 
405
        new_revno, new_revid):
 
406
    if local_branch is not None:
 
407
        update_git_cache(local_branch.repository, new_revid)
 
408
    update_git_cache(master_branch.repository, new_revid)
 
409
 
370
410
 
371
411
try:
372
 
    from bzrlib.diff import format_registry as diff_format_registry
373
 
except ImportError:
 
412
    from bzrlib.hooks import install_lazy_named_hook
 
413
except ImportError: # Compatibility with bzr < 2.4
374
414
    pass
375
415
else:
376
 
    diff_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
377
 
        'GitDiffTree', 'Git am-style diff format')
 
416
    install_lazy_named_hook("bzrlib.branch",
 
417
        "Branch.hooks", "post_commit", post_commit_update_cache,
 
418
        "git cache")
 
419
 
378
420
 
379
421
def test_suite():
380
422
    from bzrlib.plugins.git import tests