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remote.py
1
 
# Copyright (C) 2007-2008 Canonical Ltd
 
1
# Copyright (C) 2007-2009 Jelmer Vernooij <jelmer@samba.org>
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
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
 
from bzrlib import urlutils
19
 
from bzrlib.bzrdir import BzrDir, BzrDirFormat
20
 
from bzrlib.errors import NoSuchFile, NotLocalUrl
21
 
from bzrlib.lockable_files import TransportLock
22
 
from bzrlib.repository import Repository
23
 
from bzrlib.trace import info
24
 
from bzrlib.transport import Transport
 
17
from bzrlib import (
 
18
    config,
 
19
    tag,
 
20
    trace,
 
21
    ui,
 
22
    urlutils,
 
23
    )
 
24
from bzrlib.errors import (
 
25
    BzrError,
 
26
    InvalidRevisionId,
 
27
    NoSuchFile,
 
28
    NoSuchRevision,
 
29
    NotLocalUrl,
 
30
    )
 
31
from bzrlib.trace import (
 
32
    info,
 
33
    )
 
34
from bzrlib.transport import (
 
35
    Transport,
 
36
    )
25
37
 
26
 
from bzrlib.plugins.git import lazy_check_versions
 
38
from bzrlib.plugins.git import (
 
39
    lazy_check_versions,
 
40
    )
27
41
lazy_check_versions()
28
42
 
29
 
from bzrlib.plugins.git.branch import GitBranch
30
 
from bzrlib.plugins.git.errors import NoSuchRef
31
 
from bzrlib.plugins.git.dir import GitDir
32
 
from bzrlib.plugins.git.foreign import ForeignBranch
33
 
from bzrlib.plugins.git.repository import GitFormat, GitRepository
 
43
from bzrlib.plugins.git.branch import (
 
44
    GitBranch,
 
45
    extract_tags,
 
46
    )
 
47
from bzrlib.plugins.git.errors import (
 
48
    GitSmartRemoteNotSupported,
 
49
    NoSuchRef,
 
50
    )
 
51
from bzrlib.plugins.git.dir import (
 
52
    GitDir,
 
53
    )
 
54
from bzrlib.plugins.git.mapping import (
 
55
    mapping_registry,
 
56
    )
 
57
from bzrlib.plugins.git.repository import (
 
58
    GitRepository,
 
59
    )
34
60
 
 
61
import dulwich as git
 
62
from dulwich.errors import (
 
63
    GitProtocolError,
 
64
    )
 
65
from dulwich.pack import (
 
66
    Pack,
 
67
    PackData,
 
68
    )
35
69
import os
36
70
import tempfile
37
71
import urllib
38
72
import urlparse
39
73
 
40
 
import dulwich as git
41
 
from dulwich.pack import PackData, Pack, PackIndex
42
 
 
43
 
# Don't run any tests on GitSmartTransport as it is not intended to be 
 
74
from dulwich.pack import load_pack_index
 
75
 
 
76
 
 
77
# Don't run any tests on GitSmartTransport as it is not intended to be
44
78
# a full implementation of Transport
45
79
def get_test_permutations():
46
80
    return []
51
85
    def __init__(self, url, _client=None):
52
86
        Transport.__init__(self, url)
53
87
        (scheme, _, loc, _, _) = urlparse.urlsplit(url)
54
 
        assert scheme == "git"
55
 
        hostport, self._path = urllib.splithost(loc)
56
 
        (self._host, self._port) = urllib.splitnport(hostport, git.protocol.TCP_GIT_PORT)
 
88
        hostport, escaped_path = urllib.splithost(loc)
 
89
        self._path = urllib.unquote(escaped_path)
 
90
        (self._username, hostport) = urllib.splituser(hostport)
 
91
        (self._host, self._port) = urllib.splitnport(hostport, None)
57
92
        self._client = _client
58
93
 
59
 
    def _get_client(self):
60
 
        if self._client is not None:
61
 
            ret = self._client
62
 
            self._client = None
63
 
            return ret
64
 
        return git.client.TCPGitClient(self._host, self._port, 
65
 
            capabilities=["multi_ack", "side-band-64k", "ofs-delta", "side-band"])
 
94
    def external_url(self):
 
95
        return self.base
 
96
 
 
97
    def has(self, relpath):
 
98
        return False
 
99
 
 
100
    def _get_client(self, thin_packs):
 
101
        raise NotImplementedError(self._get_client)
 
102
 
 
103
    def _get_path(self):
 
104
        return self._path
66
105
 
67
106
    def fetch_pack(self, determine_wants, graph_walker, pack_data, progress=None):
68
107
        if progress is None:
69
108
            def progress(text):
70
109
                info("git: %s" % text)
71
 
        self._get_client().fetch_pack(self._path, determine_wants, 
72
 
            graph_walker, pack_data, progress)
 
110
        client = self._get_client(thin_packs=False)
 
111
        try:
 
112
            return client.fetch_pack(self._get_path(), determine_wants,
 
113
                graph_walker, pack_data, progress)
 
114
        except GitProtocolError, e:
 
115
            raise BzrError(e)
 
116
 
 
117
    def send_pack(self, get_changed_refs, generate_pack_contents):
 
118
        client = self._get_client(thin_packs=False)
 
119
        try:
 
120
            return client.send_pack(self._get_path(), get_changed_refs,
 
121
                generate_pack_contents)
 
122
        except GitProtocolError, e:
 
123
            raise BzrError(e)
73
124
 
74
125
    def get(self, path):
75
126
        raise NoSuchFile(path)
84
135
        else:
85
136
            newurl = urlutils.join(self.base, offset)
86
137
 
87
 
        return GitSmartTransport(newurl, self._client)
 
138
        return self.__class__(newurl, self._client)
 
139
 
 
140
 
 
141
class TCPGitSmartTransport(GitSmartTransport):
 
142
 
 
143
    _scheme = 'git'
 
144
 
 
145
    def _get_client(self, thin_packs):
 
146
        if self._client is not None:
 
147
            ret = self._client
 
148
            self._client = None
 
149
            return ret
 
150
        return git.client.TCPGitClient(self._host, self._port, thin_packs=thin_packs,
 
151
            report_activity=self._report_activity)
 
152
 
 
153
 
 
154
class SSHGitSmartTransport(GitSmartTransport):
 
155
 
 
156
    _scheme = 'git+ssh'
 
157
 
 
158
    def _get_path(self):
 
159
        if self._path.startswith("/~/"):
 
160
            return self._path[3:]
 
161
        return self._path
 
162
 
 
163
    def _get_client(self, thin_packs):
 
164
        if self._client is not None:
 
165
            ret = self._client
 
166
            self._client = None
 
167
            return ret
 
168
        return git.client.SSHGitClient(self._host, self._port, self._username,
 
169
            thin_packs=thin_packs, report_activity=self._report_activity)
88
170
 
89
171
 
90
172
class RemoteGitDir(GitDir):
94
176
        self.root_transport = transport
95
177
        self.transport = transport
96
178
        self._lockfiles = lockfiles
 
179
        self._mode_check_done = None
97
180
 
98
181
    def open_repository(self):
99
182
        return RemoteGitRepository(self, self._lockfiles)
100
183
 
101
 
    def open_branch(self, _unsupported=False):
 
184
    def open_branch(self, ignore_fallbacks=False):
102
185
        repo = self.open_repository()
103
186
        # TODO: Support for multiple branches in one bzrdir in bzrlib!
104
187
        return RemoteGitBranch(self, repo, "HEAD", self._lockfiles)
105
188
 
106
 
    def open_workingtree(self):
 
189
    def open_workingtree(self, recommend_upgrade=False):
107
190
        raise NotLocalUrl(self.transport.base)
108
191
 
109
192
 
116
199
class TemporaryPackIterator(Pack):
117
200
 
118
201
    def __init__(self, path, resolve_ext_ref):
 
202
        super(TemporaryPackIterator, self).__init__(path)
119
203
        self.resolve_ext_ref = resolve_ext_ref
120
 
        super(TemporaryPackIterator, self).__init__(path)
121
 
 
122
 
    @property
123
 
    def idx(self):
 
204
 
 
205
    @property
 
206
    def data(self):
 
207
        if self._data is None:
 
208
            self._data = PackData(self._data_path)
 
209
        return self._data
 
210
 
 
211
    @property
 
212
    def index(self):
124
213
        if self._idx is None:
125
 
            self._data.create_index_v2(self._idx_path, self.resolve_ext_ref)
126
 
            self._idx = PackIndex(self._idx_path)
 
214
            if not os.path.exists(self._idx_path):
 
215
                pb = ui.ui_factory.nested_progress_bar()
 
216
                try:
 
217
                    def report_progress(cur, total):
 
218
                        pb.update("generating index", cur, total)
 
219
                    self.data.create_index(self._idx_path, self.resolve_ext_ref,
 
220
                        progress=report_progress)
 
221
                finally:
 
222
                    pb.finished()
 
223
            self._idx = load_pack_index(self._idx_path)
127
224
        return self._idx
128
225
 
129
226
    def __del__(self):
130
 
        os.remove(self._data_path)
131
 
        os.remove(self._idx_path)
 
227
        if self._idx is not None:
 
228
            self._idx.close()
 
229
            os.remove(self._idx_path)
 
230
        if self._data is not None:
 
231
            self._data.close()
 
232
            os.remove(self._data_path)
132
233
 
133
234
 
134
235
class RemoteGitRepository(GitRepository):
135
236
 
136
237
    def __init__(self, gitdir, lockfiles):
137
238
        GitRepository.__init__(self, gitdir, lockfiles)
138
 
 
139
 
    def fetch_pack(self, determine_wants, graph_walker, pack_data, 
 
239
        self._refs = None
 
240
 
 
241
    @property
 
242
    def inventories(self):
 
243
        raise GitSmartRemoteNotSupported()
 
244
 
 
245
    @property
 
246
    def revisions(self):
 
247
        raise GitSmartRemoteNotSupported()
 
248
 
 
249
    @property
 
250
    def texts(self):
 
251
        raise GitSmartRemoteNotSupported()
 
252
 
 
253
    def get_refs(self):
 
254
        if self._refs is not None:
 
255
            return self._refs
 
256
        self._refs = self.bzrdir.root_transport.fetch_pack(lambda x: [], None,
 
257
            lambda x: None, lambda x: trace.mutter("git: %s" % x))
 
258
        return self._refs
 
259
 
 
260
    def fetch_pack(self, determine_wants, graph_walker, pack_data,
140
261
                   progress=None):
141
 
        self._transport.fetch_pack(determine_wants, graph_walker, pack_data, 
142
 
            progress)
143
 
 
144
 
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref, progress=None):
 
262
        return self._transport.fetch_pack(determine_wants, graph_walker,
 
263
                                          pack_data, progress)
 
264
 
 
265
    def send_pack(self, get_changed_refs, generate_pack_contents):
 
266
        return self._transport.send_pack(get_changed_refs, generate_pack_contents)
 
267
 
 
268
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
 
269
                      progress=None):
145
270
        fd, path = tempfile.mkstemp(suffix=".pack")
146
 
        self.fetch_pack(determine_wants, graph_walker, lambda x: os.write(fd, x), progress)
 
271
        self.fetch_pack(determine_wants, graph_walker,
 
272
            lambda x: os.write(fd, x), progress)
147
273
        os.close(fd)
148
274
        if os.path.getsize(path) == 0:
149
275
            return EmptyObjectStoreIterator()
150
276
        return TemporaryPackIterator(path[:-len(".pack")], resolve_ext_ref)
151
277
 
 
278
    def lookup_bzr_revision_id(self, bzr_revid):
 
279
        # This won't work for any round-tripped bzr revisions, but it's a start..
 
280
        try:
 
281
            return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
 
282
        except InvalidRevisionId:
 
283
            raise NoSuchRevision(self, bzr_revid)
 
284
 
 
285
 
 
286
class RemoteGitTagDict(tag.BasicTags):
 
287
 
 
288
    def __init__(self, branch):
 
289
        self.branch = branch
 
290
        self.repository = branch.repository
 
291
 
 
292
    def get_tag_dict(self):
 
293
        tags = {}
 
294
        for k, v in extract_tags(self.repository.get_refs()).iteritems():
 
295
            tags[k] = self.branch.mapping.revision_id_foreign_to_bzr(v)
 
296
        return tags
 
297
 
 
298
    def set_tag(self, name, revid):
 
299
        # FIXME: Not supported yet, should do a push of a new ref
 
300
        raise NotImplementedError(self.set_tag)
 
301
 
152
302
 
153
303
class RemoteGitBranch(GitBranch):
154
304
 
155
305
    def __init__(self, bzrdir, repository, name, lockfiles):
156
 
        def determine_wants(heads):
157
 
            if not name in heads:
158
 
                raise NoSuchRef(name)
159
 
            self._ref = heads[name]
160
 
        bzrdir.root_transport.fetch_pack(determine_wants, None, lambda x: None, 
161
 
                             lambda x: mutter("git: %s" % x))
162
 
        super(RemoteGitBranch, self).__init__(bzrdir, repository, name, self._ref, lockfiles)
 
306
        self._ref = None
 
307
        super(RemoteGitBranch, self).__init__(bzrdir, repository, name,
 
308
                lockfiles)
 
309
 
 
310
    def revision_history(self):
 
311
        raise GitSmartRemoteNotSupported()
163
312
 
164
313
    def last_revision(self):
165
 
        return self.mapping.revision_id_foreign_to_bzr(self._ref)
 
314
        return self.mapping.revision_id_foreign_to_bzr(self.head)
 
315
 
 
316
    def _get_config(self):
 
317
        class EmptyConfig(object):
 
318
 
 
319
            def _get_configobj(self):
 
320
                return config.ConfigObj()
 
321
 
 
322
        return EmptyConfig()
 
323
 
 
324
    @property
 
325
    def head(self):
 
326
        if self._ref is not None:
 
327
            return self._ref
 
328
        heads = self.repository.get_refs()
 
329
        if not self.name in heads:
 
330
            raise NoSuchRef(self.name)
 
331
        self._ref = heads[self.name]
 
332
        return self._ref
166
333
 
167
334
    def _synchronize_history(self, destination, revision_id):
168
335
        """See Branch._synchronize_history()."""
169
336
        destination.generate_revision_history(self.last_revision())
170
 
 
 
337
 
 
338
    def get_push_location(self):
 
339
        return None
 
340
 
 
341
    def set_push_location(self, url):
 
342
        pass