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remote.py
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
16
 
17
 
import bzrlib
18
17
from bzrlib import (
19
 
    branch,
 
18
    config,
 
19
    debug,
20
20
    tag,
 
21
    trace,
21
22
    ui,
22
23
    urlutils,
23
24
    )
24
25
from bzrlib.errors import (
25
26
    BzrError,
 
27
    InvalidRevisionId,
26
28
    NoSuchFile,
 
29
    NoSuchRevision,
27
30
    NotLocalUrl,
28
31
    )
29
 
from bzrlib.trace import (
30
 
    info,
31
 
    )
32
32
from bzrlib.transport import (
33
33
    Transport,
34
34
    )
48
48
from bzrlib.plugins.git.dir import (
49
49
    GitDir,
50
50
    )
 
51
from bzrlib.plugins.git.mapping import (
 
52
    mapping_registry,
 
53
    )
51
54
from bzrlib.plugins.git.repository import (
52
 
    GitRepositoryFormat,
53
55
    GitRepository,
54
56
    )
 
57
from bzrlib.plugins.git.refs import (
 
58
    extract_tags,
 
59
    branch_name_to_ref,
 
60
    )
55
61
 
56
62
import dulwich as git
57
63
from dulwich.errors import (
59
65
    )
60
66
from dulwich.pack import (
61
67
    Pack,
62
 
    PackData,
 
68
    ThinPackData,
63
69
    )
64
70
import os
65
71
import tempfile
66
72
import urllib
67
73
import urlparse
68
 
 
69
 
try:
70
 
    from dulwich.pack import load_pack_index
71
 
except ImportError:
72
 
    from dulwich.pack import PackIndex as load_pack_index
73
 
 
74
 
 
75
 
# Don't run any tests on GitSmartTransport as it is not intended to be 
 
74
urlparse.uses_netloc.extend(['git', 'git+ssh'])
 
75
 
 
76
from dulwich.pack import load_pack_index
 
77
 
 
78
 
 
79
# Don't run any tests on GitSmartTransport as it is not intended to be
76
80
# a full implementation of Transport
77
81
def get_test_permutations():
78
82
    return []
79
83
 
80
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
 
81
100
class GitSmartTransport(Transport):
82
101
 
83
102
    def __init__(self, url, _client=None):
84
103
        Transport.__init__(self, url)
85
 
        (scheme, _, loc, _, _) = urlparse.urlsplit(url)
86
 
        hostport, self._path = urllib.splithost(loc)
87
 
        (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)
88
109
        self._client = _client
89
110
 
 
111
    def external_url(self):
 
112
        return self.base
 
113
 
90
114
    def has(self, relpath):
91
115
        return False
92
116
 
93
 
    def _get_client(self):
 
117
    def _get_client(self, thin_packs):
94
118
        raise NotImplementedError(self._get_client)
95
119
 
 
120
    def _get_path(self):
 
121
        return self._path
 
122
 
96
123
    def fetch_pack(self, determine_wants, graph_walker, pack_data, progress=None):
97
124
        if progress is None:
98
125
            def progress(text):
99
 
                info("git: %s" % text)
100
 
        client = self._get_client()
 
126
                trace.info("git: %s" % text)
 
127
        client = self._get_client(thin_packs=False)
101
128
        try:
102
 
            client.fetch_pack(self._path, determine_wants, 
 
129
            return client.fetch_pack(self._get_path(), determine_wants,
103
130
                graph_walker, pack_data, progress)
104
131
        except GitProtocolError, e:
105
132
            raise BzrError(e)
106
133
 
 
134
    def send_pack(self, get_changed_refs, generate_pack_contents):
 
135
        client = self._get_client(thin_packs=False)
 
136
        try:
 
137
            return client.send_pack(self._get_path(), get_changed_refs,
 
138
                generate_pack_contents)
 
139
        except GitProtocolError, e:
 
140
            raise BzrError(e)
 
141
 
107
142
    def get(self, path):
108
143
        raise NoSuchFile(path)
109
144
 
124
159
 
125
160
    _scheme = 'git'
126
161
 
127
 
    def _get_client(self):
 
162
    def _get_client(self, thin_packs):
128
163
        if self._client is not None:
129
164
            ret = self._client
130
165
            self._client = None
131
166
            return ret
132
 
        return git.client.TCPGitClient(self._host, self._port, thin_packs=False,
133
 
            report_activity=self._report_activity)
 
167
        return git.client.TCPGitClient(self._host, self._port,
 
168
            thin_packs=thin_packs, report_activity=self._report_activity)
134
169
 
135
170
 
136
171
class SSHGitSmartTransport(GitSmartTransport):
137
172
 
138
173
    _scheme = 'git+ssh'
139
174
 
140
 
    def _get_client(self):
 
175
    def _get_path(self):
 
176
        if self._path.startswith("/~/"):
 
177
            return self._path[3:]
 
178
        return self._path
 
179
 
 
180
    def _get_client(self, thin_packs):
141
181
        if self._client is not None:
142
182
            ret = self._client
143
183
            self._client = None
144
184
            return ret
145
 
        return git.client.SSHGitClient(self._host, self._port, thin_packs=False,
146
 
            report_activity=self._report_activity)
 
185
        return git.client.SSHGitClient(self._host, self._port, self._username,
 
186
            thin_packs=thin_packs, report_activity=self._report_activity)
147
187
 
148
188
 
149
189
class RemoteGitDir(GitDir):
155
195
        self._lockfiles = lockfiles
156
196
        self._mode_check_done = None
157
197
 
 
198
    def _branch_name_to_ref(self, name):
 
199
        return branch_name_to_ref(name, default="HEAD")
 
200
 
158
201
    def open_repository(self):
159
202
        return RemoteGitRepository(self, self._lockfiles)
160
203
 
161
 
    def open_branch(self, ignore_fallbacks=False):
 
204
    def _open_branch(self, name=None, ignore_fallbacks=False, 
 
205
                    unsupported=False):
162
206
        repo = self.open_repository()
163
 
        # TODO: Support for multiple branches in one bzrdir in bzrlib!
164
 
        return RemoteGitBranch(self, repo, "HEAD", self._lockfiles)
 
207
        refname = self._branch_name_to_ref(name)
 
208
        return RemoteGitBranch(self, repo, refname, self._lockfiles)
165
209
 
166
 
    def open_workingtree(self):
 
210
    def open_workingtree(self, recommend_upgrade=False):
167
211
        raise NotLocalUrl(self.transport.base)
168
212
 
169
213
 
180
224
        self.resolve_ext_ref = resolve_ext_ref
181
225
 
182
226
    @property
183
 
    def idx(self):
 
227
    def data(self):
 
228
        if self._data is None:
 
229
            self._data = ThinPackData(self.resolve_ext_ref, self._data_path)
 
230
        return self._data
 
231
 
 
232
    @property
 
233
    def index(self):
184
234
        if self._idx is None:
185
 
            if self._data is None:
186
 
                self._data = PackData(self._data_path)
187
 
            pb = ui.ui_factory.nested_progress_bar()
188
 
            try:
189
 
                def report_progress(cur, total):
190
 
                    pb.update("generating index", cur, total)
191
 
                self._data.create_index_v2(self._idx_path, self.resolve_ext_ref,
192
 
                    progress=report_progress)
193
 
            finally:
194
 
                pb.finished()
 
235
            if not os.path.exists(self._idx_path):
 
236
                pb = ui.ui_factory.nested_progress_bar()
 
237
                try:
 
238
                    def report_progress(cur, total):
 
239
                        pb.update("generating index", cur, total)
 
240
                    self.data.create_index(self._idx_path, 
 
241
                        progress=report_progress)
 
242
                finally:
 
243
                    pb.finished()
195
244
            self._idx = load_pack_index(self._idx_path)
196
245
        return self._idx
197
246
 
198
247
    def __del__(self):
199
 
        os.remove(self._data_path)
200
 
        os.remove(self._idx_path)
 
248
        if self._idx is not None:
 
249
            self._idx.close()
 
250
            os.remove(self._idx_path)
 
251
        if self._data is not None:
 
252
            self._data.close()
 
253
            os.remove(self._data_path)
201
254
 
202
255
 
203
256
class RemoteGitRepository(GitRepository):
221
274
    def get_refs(self):
222
275
        if self._refs is not None:
223
276
            return self._refs
224
 
        def determine_wants(heads):
225
 
            self._refs = heads
226
 
            return []
227
 
        self.bzrdir.root_transport.fetch_pack(determine_wants, None, 
228
 
            lambda x: None, lambda x: mutter("git: %s" % x))
 
277
        self._refs = self.bzrdir.root_transport.fetch_pack(lambda x: [], None,
 
278
            lambda x: None, lambda x: trace.mutter("git: %s" % x))
229
279
        return self._refs
230
280
 
231
 
    def fetch_pack(self, determine_wants, graph_walker, pack_data, 
 
281
    def fetch_pack(self, determine_wants, graph_walker, pack_data,
232
282
                   progress=None):
233
 
        self._transport.fetch_pack(determine_wants, graph_walker, pack_data, 
234
 
            progress)
235
 
 
236
 
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref, progress=None):
 
283
        return self._transport.fetch_pack(determine_wants, graph_walker,
 
284
                                          pack_data, progress)
 
285
 
 
286
    def send_pack(self, get_changed_refs, generate_pack_contents):
 
287
        return self._transport.send_pack(get_changed_refs, generate_pack_contents)
 
288
 
 
289
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
 
290
                      progress=None):
237
291
        fd, path = tempfile.mkstemp(suffix=".pack")
238
 
        self.fetch_pack(determine_wants, graph_walker, lambda x: os.write(fd, x), progress)
 
292
        self.fetch_pack(determine_wants, graph_walker,
 
293
            lambda x: os.write(fd, x), progress)
239
294
        os.close(fd)
240
295
        if os.path.getsize(path) == 0:
241
296
            return EmptyObjectStoreIterator()
242
297
        return TemporaryPackIterator(path[:-len(".pack")], resolve_ext_ref)
243
298
 
 
299
    def lookup_bzr_revision_id(self, bzr_revid):
 
300
        # This won't work for any round-tripped bzr revisions, but it's a start..
 
301
        try:
 
302
            return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
 
303
        except InvalidRevisionId:
 
304
            raise NoSuchRevision(self, bzr_revid)
 
305
 
244
306
 
245
307
class RemoteGitTagDict(tag.BasicTags):
246
308
 
249
311
        self.repository = branch.repository
250
312
 
251
313
    def get_tag_dict(self):
252
 
        ret = {}
253
 
        refs = self.repository.get_refs()
254
 
        for k,v in refs.iteritems():
255
 
            if k.startswith("refs/tags/") and not k.endswith("^{}"):
256
 
                v = refs.get(k+"^{}", v)
257
 
                ret[k[len("refs/tags/"):]] = self.branch.mapping.revision_id_foreign_to_bzr(v)
258
 
        return ret
 
314
        tags = {}
 
315
        for k, v in extract_tags(self.repository.get_refs()).iteritems():
 
316
            tags[k] = self.branch.mapping.revision_id_foreign_to_bzr(v)
 
317
        return tags
259
318
 
260
319
    def set_tag(self, name, revid):
261
320
        # FIXME: Not supported yet, should do a push of a new ref
265
324
class RemoteGitBranch(GitBranch):
266
325
 
267
326
    def __init__(self, bzrdir, repository, name, lockfiles):
268
 
        heads = repository.get_refs()
269
 
        if not name in heads:
270
 
            raise NoSuchRef(name)
271
 
        self._ref = heads[name]
272
 
        super(RemoteGitBranch, self).__init__(bzrdir, repository, name, self._ref, lockfiles)
 
327
        self._ref = None
 
328
        super(RemoteGitBranch, self).__init__(bzrdir, repository, name,
 
329
                lockfiles)
273
330
 
274
331
    def revision_history(self):
275
332
        raise GitSmartRemoteNotSupported()
276
333
 
277
334
    def last_revision(self):
278
 
        return self.mapping.revision_id_foreign_to_bzr(self._ref)
 
335
        return self.mapping.revision_id_foreign_to_bzr(self.head)
 
336
 
 
337
    def _get_config(self):
 
338
        class EmptyConfig(object):
 
339
 
 
340
            def _get_configobj(self):
 
341
                return config.ConfigObj()
 
342
 
 
343
        return EmptyConfig()
 
344
 
 
345
    @property
 
346
    def head(self):
 
347
        if self._ref is not None:
 
348
            return self._ref
 
349
        heads = self.repository.get_refs()
 
350
        if self.name in heads:
 
351
            self._ref = heads[self.name]
 
352
        elif ("refs/heads/" + self.name) in heads:
 
353
            self._ref = heads["refs/heads/" + self.name]
 
354
        else:
 
355
            raise NoSuchRef(self.name)
 
356
        return self._ref
279
357
 
280
358
    def _synchronize_history(self, destination, revision_id):
281
359
        """See Branch._synchronize_history()."""
282
360
        destination.generate_revision_history(self.last_revision())
283
 
 
 
361
 
 
362
    def get_push_location(self):
 
363
        return None
 
364
 
 
365
    def set_push_location(self, url):
 
366
        pass