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remote.py
1
 
# Copyright (C) 2007-2009 Jelmer Vernooij <jelmer@samba.org>
 
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# Copyright (C) 2007-2010 Jelmer Vernooij <jelmer@samba.org>
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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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# 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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17
 
import bzrlib
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from bzrlib import (
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    config,
 
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    debug,
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    tag,
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    trace,
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    ui,
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    NoSuchRevision,
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    NotLocalUrl,
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    )
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from bzrlib.trace import (
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    info,
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    )
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32
from bzrlib.transport import (
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    Transport,
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    )
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44
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from bzrlib.plugins.git.branch import (
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    GitBranch,
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    extract_tags,
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    )
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from bzrlib.plugins.git.errors import (
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    GitSmartRemoteNotSupported,
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from bzrlib.plugins.git.repository import (
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    GitRepository,
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    )
 
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from bzrlib.plugins.git.refs import (
 
58
    extract_tags,
 
59
    branch_name_to_ref,
 
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    )
61
61
 
62
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import dulwich as git
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from dulwich.errors import (
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    )
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from dulwich.pack import (
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    Pack,
68
 
    PackData,
 
68
    ThinPackData,
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    )
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import os
71
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import tempfile
72
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import urllib
73
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import urlparse
 
74
urlparse.uses_netloc.extend(['git', 'git+ssh'])
74
75
 
75
76
from dulwich.pack import load_pack_index
76
77
 
77
78
 
78
 
# Don't run any tests on GitSmartTransport as it is not intended to be 
 
79
# Don't run any tests on GitSmartTransport as it is not intended to be
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# a full implementation of Transport
80
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def get_test_permutations():
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    return []
82
83
 
83
84
 
 
85
def split_git_url(url):
 
86
    """Split a Git URL.
 
87
 
 
88
    :param url: Git URL
 
89
    :return: Tuple with host, port, username, path.
 
90
    """
 
91
    (scheme, netloc, loc, _, _) = urlparse.urlsplit(url)
 
92
    path = urllib.unquote(loc)
 
93
    if path.startswith("/~"):
 
94
        path = path[1:]
 
95
    (username, hostport) = urllib.splituser(netloc)
 
96
    (host, port) = urllib.splitnport(hostport, None)
 
97
    return (host, port, username, path)
 
98
 
 
99
 
84
100
class GitSmartTransport(Transport):
85
101
 
86
102
    def __init__(self, url, _client=None):
87
103
        Transport.__init__(self, url)
88
 
        (scheme, _, loc, _, _) = urlparse.urlsplit(url)
89
 
        hostport, self._path = urllib.splithost(loc)
90
 
        (self._username, hostport) = urllib.splituser(hostport)
91
 
        (self._host, self._port) = urllib.splitnport(hostport, None)
 
104
        (self._host, self._port, self._username, self._path) = \
 
105
            split_git_url(url)
 
106
        if 'transport' in debug.debug_flags:
 
107
            trace.mutter('host: %r, user: %r, port: %r, path: %r',
 
108
                         self._host, self._username, self._port, self._path)
92
109
        self._client = _client
93
110
 
94
111
    def external_url(self):
106
123
    def fetch_pack(self, determine_wants, graph_walker, pack_data, progress=None):
107
124
        if progress is None:
108
125
            def progress(text):
109
 
                info("git: %s" % text)
 
126
                trace.info("git: %s" % text)
110
127
        client = self._get_client(thin_packs=False)
111
128
        try:
112
 
            return client.fetch_pack(self._get_path(), determine_wants, 
 
129
            return client.fetch_pack(self._get_path(), determine_wants,
113
130
                graph_walker, pack_data, progress)
114
131
        except GitProtocolError, e:
115
132
            raise BzrError(e)
117
134
    def send_pack(self, get_changed_refs, generate_pack_contents):
118
135
        client = self._get_client(thin_packs=False)
119
136
        try:
120
 
            return client.send_pack(self._get_path(), get_changed_refs, 
 
137
            return client.send_pack(self._get_path(), get_changed_refs,
121
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                generate_pack_contents)
122
139
        except GitProtocolError, e:
123
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            raise BzrError(e)
147
164
            ret = self._client
148
165
            self._client = None
149
166
            return ret
150
 
        return git.client.TCPGitClient(self._host, self._port, thin_packs=thin_packs,
151
 
            report_activity=self._report_activity)
 
167
        return git.client.TCPGitClient(self._host, self._port,
 
168
            thin_packs=thin_packs, report_activity=self._report_activity)
152
169
 
153
170
 
154
171
class SSHGitSmartTransport(GitSmartTransport):
165
182
            ret = self._client
166
183
            self._client = None
167
184
            return ret
168
 
        return git.client.SSHGitClient(self._host, self._port, self._username,
 
185
        location_config = config.LocationConfig(self.base)
 
186
        client = git.client.SSHGitClient(self._host, self._port, self._username,
169
187
            thin_packs=thin_packs, report_activity=self._report_activity)
 
188
        # Set up alternate pack program paths
 
189
        upload_pack = location_config.get_user_option('git_upload_pack')
 
190
        if upload_pack:
 
191
            client.alternative_paths["upload-pack"] = upload_pack
 
192
        receive_pack = location_config.get_user_option('git_receive_pack')
 
193
        if receive_pack:
 
194
            client.alternative_paths["receive-pack"] = receive_pack
 
195
        return client
170
196
 
171
197
 
172
198
class RemoteGitDir(GitDir):
178
204
        self._lockfiles = lockfiles
179
205
        self._mode_check_done = None
180
206
 
 
207
    def _branch_name_to_ref(self, name, default=None):
 
208
        return branch_name_to_ref(name, default=default)
 
209
 
181
210
    def open_repository(self):
182
211
        return RemoteGitRepository(self, self._lockfiles)
183
212
 
184
 
    def open_branch(self, ignore_fallbacks=False):
 
213
    def _open_branch(self, name=None, ignore_fallbacks=False, 
 
214
                    unsupported=False):
185
215
        repo = self.open_repository()
186
 
        # TODO: Support for multiple branches in one bzrdir in bzrlib!
187
 
        return RemoteGitBranch(self, repo, "HEAD", self._lockfiles)
 
216
        refname = self._branch_name_to_ref(name)
 
217
        return RemoteGitBranch(self, repo, refname, self._lockfiles)
188
218
 
189
219
    def open_workingtree(self, recommend_upgrade=False):
190
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        raise NotLocalUrl(self.transport.base)
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    @property
206
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    def data(self):
207
237
        if self._data is None:
208
 
            self._data = PackData(self._data_path)
 
238
            self._data = ThinPackData(self.resolve_ext_ref, self._data_path)
209
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        return self._data
210
240
 
211
241
    @property
216
246
                try:
217
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                    def report_progress(cur, total):
218
248
                        pb.update("generating index", cur, total)
219
 
                    self.data.create_index(self._idx_path, self.resolve_ext_ref,
 
249
                    self.data.create_index(self._idx_path, 
220
250
                        progress=report_progress)
221
251
                finally:
222
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                    pb.finished()
253
283
    def get_refs(self):
254
284
        if self._refs is not None:
255
285
            return self._refs
256
 
        self._refs = self.bzrdir.root_transport.fetch_pack(lambda x: [], None, 
 
286
        self._refs = self.bzrdir.root_transport.fetch_pack(lambda x: [], None,
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287
            lambda x: None, lambda x: trace.mutter("git: %s" % x))
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288
        return self._refs
259
289
 
260
 
    def fetch_pack(self, determine_wants, graph_walker, pack_data, 
 
290
    def fetch_pack(self, determine_wants, graph_walker, pack_data,
261
291
                   progress=None):
262
292
        return self._transport.fetch_pack(determine_wants, graph_walker,
263
293
                                          pack_data, progress)
265
295
    def send_pack(self, get_changed_refs, generate_pack_contents):
266
296
        return self._transport.send_pack(get_changed_refs, generate_pack_contents)
267
297
 
268
 
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref, progress=None):
 
298
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
 
299
                      progress=None):
269
300
        fd, path = tempfile.mkstemp(suffix=".pack")
270
 
        self.fetch_pack(determine_wants, graph_walker, lambda x: os.write(fd, x), progress)
 
301
        self.fetch_pack(determine_wants, graph_walker,
 
302
            lambda x: os.write(fd, x), progress)
271
303
        os.close(fd)
272
304
        if os.path.getsize(path) == 0:
273
305
            return EmptyObjectStoreIterator()
280
312
        except InvalidRevisionId:
281
313
            raise NoSuchRevision(self, bzr_revid)
282
314
 
 
315
    def lookup_foreign_revision_id(self, foreign_revid, mapping=None):
 
316
        """Lookup a revision id.
 
317
 
 
318
        """
 
319
        if mapping is None:
 
320
            mapping = self.get_mapping()
 
321
        # Not really an easy way to parse foreign revids here..
 
322
        return mapping.revision_id_foreign_to_bzr(foreign_revid)
 
323
 
283
324
 
284
325
class RemoteGitTagDict(tag.BasicTags):
285
326
 
301
342
class RemoteGitBranch(GitBranch):
302
343
 
303
344
    def __init__(self, bzrdir, repository, name, lockfiles):
304
 
        self._ref = None
305
 
        super(RemoteGitBranch, self).__init__(bzrdir, repository, name, 
 
345
        self._sha = None
 
346
        super(RemoteGitBranch, self).__init__(bzrdir, repository, name,
306
347
                lockfiles)
307
348
 
308
349
    def revision_history(self):
309
350
        raise GitSmartRemoteNotSupported()
310
351
 
311
352
    def last_revision(self):
312
 
        return self.mapping.revision_id_foreign_to_bzr(self.head)
 
353
        return self.lookup_foreign_revision_id(self.head)
313
354
 
314
355
    def _get_config(self):
315
356
        class EmptyConfig(object):
321
362
 
322
363
    @property
323
364
    def head(self):
324
 
        if self._ref is not None:
325
 
            return self._ref
 
365
        if self._sha is not None:
 
366
            return self._sha
326
367
        heads = self.repository.get_refs()
327
 
        if not self.name in heads:
 
368
        name = self.bzrdir._branch_name_to_ref(self.name, "HEAD")
 
369
        if name in heads:
 
370
            self._sha = heads[name]
 
371
        else:
328
372
            raise NoSuchRef(self.name)
329
 
        self._ref = heads[self.name]
330
 
        return self._ref
 
373
        return self._sha
331
374
 
332
375
    def _synchronize_history(self, destination, revision_id):
333
376
        """See Branch._synchronize_history()."""
334
377
        destination.generate_revision_history(self.last_revision())
335
 
 
 
378
 
336
379
    def get_push_location(self):
337
380
        return None
338
381