/brz/remove-bazaar

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Avoid invoking git directly.

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branch.py
35
35
from bzrlib.decorators import (
36
36
    needs_read_lock,
37
37
    )
 
38
from bzrlib.revision import (
 
39
    NULL_REVISION,
 
40
    )
38
41
from bzrlib.trace import (
39
42
    is_quiet,
40
43
    mutter,
41
44
    )
42
45
 
43
 
from bzrlib.plugins.git import (
44
 
    get_rich_root_format,
45
 
    )
46
46
from bzrlib.plugins.git.config import (
47
47
    GitBranchConfig,
48
48
    )
60
60
 
61
61
 
62
62
class GitPullResult(branch.PullResult):
 
63
    """Result of a pull from a Git branch."""
63
64
 
64
65
    def _lookup_revno(self, revid):
65
66
        assert isinstance(revid, str), "was %r" % revid
97
98
                mutter("Tag %s points at object %r that is not a commit, "
98
99
                       "ignoring", k, obj)
99
100
                continue
100
 
            ret[k] = self.branch.mapping.revision_id_foreign_to_bzr(v)
 
101
            ret[k] = self.branch.lookup_foreign_revision_id(v)
101
102
        return ret
102
103
 
103
104
    def _set_tag_dict(self, to_dict):
110
111
        for name in extra:
111
112
            if name.startswith("refs/tags/"):
112
113
                del self.repository._git[name]
113
 
        
 
114
 
114
115
    def set_tag(self, name, revid):
115
116
        self.repository._git.refs[tag_name_to_ref(name)], _ = \
116
117
            self.branch.mapping.revision_id_bzr_to_foreign(revid)
149
150
            return LocalGitTagDict(branch)
150
151
 
151
152
 
 
153
class GitReadLock(object):
 
154
 
 
155
    def __init__(self, unlock):
 
156
        self.unlock = unlock
 
157
 
 
158
 
 
159
class GitWriteLock(object):
 
160
 
 
161
    def __init__(self, unlock):
 
162
        self.unlock = unlock
 
163
 
 
164
 
152
165
class GitBranch(ForeignBranch):
153
166
    """An adapter to git repositories for bzr Branch objects."""
154
167
 
169
182
        """Return the most suitable metadir for a checkout of this branch.
170
183
        Weaves are used if this branch's repository uses weaves.
171
184
        """
172
 
        return get_rich_root_format()
 
185
        return bzrdir.format_registry.make_bzrdir("default")
173
186
 
174
187
    def get_child_submit_format(self):
175
188
        """Return the preferred format of submissions to this branch."""
183
196
 
184
197
        :return: Branch nick
185
198
        """
186
 
        return self.name
 
199
        return self.name or "HEAD"
187
200
 
188
201
    def _set_nick(self, nick):
189
202
        raise NotImplementedError
192
205
 
193
206
    def __repr__(self):
194
207
        return "<%s(%r, %r)>" % (self.__class__.__name__, self.repository.base,
195
 
            self.ref)
 
208
            self.ref or "HEAD")
196
209
 
197
210
    def generate_revision_history(self, revid, old_revid=None):
198
211
        # FIXME: Check that old_revid is in the ancestry of revid
201
214
 
202
215
    def lock_write(self):
203
216
        self.control_files.lock_write()
 
217
        return GitWriteLock(self.unlock)
204
218
 
205
219
    def get_stacked_on_url(self):
206
220
        # Git doesn't do stacking (yet...)
217
231
 
218
232
    def lock_read(self):
219
233
        self.control_files.lock_read()
 
234
        return GitReadLock(self.unlock)
220
235
 
221
236
    def is_locked(self):
222
237
        return self.control_files.is_locked()
232
247
        # perhaps should escape this ?
233
248
        if self.head is None:
234
249
            return revision.NULL_REVISION
235
 
        return self.mapping.revision_id_foreign_to_bzr(self.head)
 
250
        return self.lookup_foreign_revision_id(self.head)
236
251
 
237
252
    def _basic_push(self, target, overwrite=False, stop_revision=None):
238
253
        return branch.InterBranch.get(self, target)._basic_push(
239
254
            overwrite, stop_revision)
240
255
 
 
256
    def lookup_foreign_revision_id(self, foreign_revid):
 
257
        return self.repository.lookup_foreign_revision_id(foreign_revid,
 
258
            self.mapping)
 
259
 
241
260
 
242
261
class LocalGitBranch(GitBranch):
243
262
    """A local Git branch."""
244
263
 
245
264
    def __init__(self, bzrdir, repository, name, lockfiles, tagsdict=None):
246
 
        super(LocalGitBranch, self).__init__(bzrdir, repository, name, 
 
265
        super(LocalGitBranch, self).__init__(bzrdir, repository, name,
247
266
              lockfiles, tagsdict)
248
 
        if not name in repository._git.get_refs().keys():
 
267
        refs = repository._git.get_refs()
 
268
        if not (name in refs.keys() or "HEAD" in refs.keys()):
249
269
            raise errors.NotBranchError(self.base)
250
270
 
251
271
    def create_checkout(self, to_location, revision_id=None, lightweight=False,
262
282
            return tree
263
283
        else:
264
284
            return self._create_heavyweight_checkout(to_location, revision_id,
265
 
            hardlink)
 
285
                hardlink)
266
286
 
267
287
    def _create_heavyweight_checkout(self, to_location, revision_id=None,
268
288
                                     hardlink=False):
274
294
        :return: WorkingTree object of checkout.
275
295
        """
276
296
        checkout_branch = bzrdir.BzrDir.create_branch_convenience(
277
 
            to_location, force_new_tree=False, format=get_rich_root_format())
 
297
            to_location, force_new_tree=False)
278
298
        checkout = checkout_branch.bzrdir
279
299
        checkout_branch.bind(self)
280
300
        # pull up to the specified revision_id to set the initial
292
312
 
293
313
    def _get_head(self):
294
314
        try:
295
 
            return self.repository._git.ref(self.ref)
 
315
            return self.repository._git.ref(self.ref or "HEAD")
296
316
        except KeyError:
297
317
            return None
298
318
 
305
325
 
306
326
    def _set_head(self, value):
307
327
        self._head = value
308
 
        self.repository._git.refs[self.ref] = self._head
 
328
        self.repository._git.refs[self.ref or "HEAD"] = self._head
309
329
        self._clear_cached_state()
310
330
 
311
331
    head = property(_get_head, _set_head)
329
349
 
330
350
class GitBranchPullResult(branch.PullResult):
331
351
 
 
352
    def __init__(self):
 
353
        super(GitBranchPullResult, self).__init__()
 
354
        self.new_git_head = None
 
355
        self._old_revno = None
 
356
        self._new_revno = None
 
357
 
332
358
    def report(self, to_file):
333
359
        if not is_quiet():
334
360
            if self.old_revid == self.new_revid:
340
366
                to_file.write('Now on revision %d.\n' % (self.new_revno,))
341
367
        self._show_tag_conficts(to_file)
342
368
 
 
369
    def _lookup_revno(self, revid):
 
370
        assert isinstance(revid, str), "was %r" % revid
 
371
        # Try in source branch first, it'll be faster
 
372
        try:
 
373
            return self.source_branch.revision_id_to_revno(revid)
 
374
        except errors.NoSuchRevision:
 
375
            # FIXME: Check using graph.find_distance_to_null() ?
 
376
            return self.target_branch.revision_id_to_revno(revid)
 
377
 
 
378
    def _get_old_revno(self):
 
379
        if self._old_revno is not None:
 
380
            return self._old_revno
 
381
        return self._lookup_revno(self.old_revid)
 
382
 
 
383
    def _set_old_revno(self, revno):
 
384
        self._old_revno = revno
 
385
 
 
386
    old_revno = property(_get_old_revno, _set_old_revno)
 
387
 
 
388
    def _get_new_revno(self):
 
389
        if self._new_revno is not None:
 
390
            return self._new_revno
 
391
        return self._lookup_revno(self.new_revid)
 
392
 
 
393
    def _set_new_revno(self, revno):
 
394
        self._new_revno = revno
 
395
 
 
396
    new_revno = property(_get_new_revno, _set_new_revno)
 
397
 
343
398
 
344
399
class GitBranchPushResult(branch.BranchPushResult):
345
400
 
385
440
        """
386
441
        interrepo = self._get_interrepo(self.source, self.target)
387
442
        def determine_wants(heads):
388
 
            if not self.source.ref in heads:
 
443
            if self.source.ref is not None and not self.source.ref in heads:
389
444
                raise NoSuchRef(self.source.ref, heads.keys())
390
445
            if stop_revision is not None:
391
446
                self._last_revid = stop_revision
392
447
                head, mapping = self.source.repository.lookup_bzr_revision_id(
393
448
                    stop_revision)
394
449
            else:
395
 
                head = heads[self.source.ref]
396
 
                self._last_revid = self.source.mapping.revision_id_foreign_to_bzr(
397
 
                    head)
 
450
                if self.source.ref is not None:
 
451
                    head = heads[self.source.ref]
 
452
                else:
 
453
                    head = heads["HEAD"]
 
454
                self._last_revid = self.source.lookup_foreign_revision_id(head)
398
455
            if self.target.repository.has_revision(self._last_revid):
399
456
                return []
400
457
            return [head]
401
458
        pack_hint, head = interrepo.fetch_objects(
402
459
            determine_wants, self.source.mapping, limit=limit)
403
 
        if pack_hint is not None and self.target.repository._format.pack_compresses:
 
460
        if (pack_hint is not None and
 
461
            self.target.repository._format.pack_compresses):
404
462
            self.target.repository.pack(hint=pack_hint)
405
463
        if head is not None:
406
 
            self._last_revid = self.source.mapping.revision_id_foreign_to_bzr(head)
 
464
            self._last_revid = self.source.lookup_foreign_revision_id(head)
407
465
        if overwrite:
408
466
            prev_last_revid = None
409
467
        else:
503
561
            stop_revision = self.source.last_revision()
504
562
        # FIXME: Check for diverged branches
505
563
        def get_changed_refs(old_refs):
506
 
            result.old_revid = self.target.mapping.revision_id_foreign_to_bzr(old_refs.get(self.target.ref, ZERO_SHA))
 
564
            result.old_revid = self.target.lookup_foreign_revision_id(old_refs.get(self.target.ref, ZERO_SHA))
507
565
            refs = { self.target.ref: self.source.repository.lookup_bzr_revision_id(stop_revision)[0] }
508
566
            result.new_revid = stop_revision
509
567
            for name, sha in self.source.repository._git.refs.as_dict("refs/tags").iteritems():
536
594
 
537
595
    def update_tags(self, refs):
538
596
        for name, v in extract_tags(refs).iteritems():
539
 
            revid = self.target.mapping.revision_id_foreign_to_bzr(v)
 
597
            revid = self.target.lookup_foreign_revision_id(v)
540
598
            self.target.tags.set_tag(name, revid)
541
599
 
542
600
    def update_refs(self, stop_revision=None):
543
601
        interrepo = repository.InterRepository.get(self.source.repository,
544
602
            self.target.repository)
545
603
        if stop_revision is None:
546
 
            refs = interrepo.fetch_refs(branches=["HEAD"])
547
 
            stop_revision = self.target.mapping.revision_id_foreign_to_bzr(refs["HEAD"])
 
604
            refs = interrepo.fetch(branches=["HEAD"])
 
605
            stop_revision = self.target.lookup_foreign_revision_id(refs["HEAD"])
548
606
        else:
549
 
            refs = interrepo.fetch_refs(revision_id=stop_revision)
 
607
            refs = interrepo.fetch(revision_id=stop_revision)
550
608
        return refs, stop_revision
551
609
 
552
610
    def pull(self, stop_revision=None, overwrite=False,
565
623
        return result
566
624
 
567
625
 
568
 
class InterToGitBranch(branch.InterBranch):
 
626
class InterToGitBranch(branch.GenericInterBranch):
569
627
    """InterBranch implementation that pulls from Git into bzr."""
570
628
 
 
629
    def __init__(self, source, target):
 
630
        super(InterToGitBranch, self).__init__(source, target)
 
631
        self.interrepo = repository.InterRepository.get(source.repository,
 
632
                                           target.repository)
 
633
 
571
634
    @staticmethod
572
635
    def _get_branch_formats_to_test():
573
 
        return None, None
 
636
        return []
574
637
 
575
638
    @classmethod
576
639
    def is_compatible(self, source, target):
580
643
    def update_revisions(self, *args, **kwargs):
581
644
        raise NoPushSupport()
582
645
 
583
 
    def push(self, overwrite=True, stop_revision=None,
 
646
    def _get_new_refs(self, stop_revision=None):
 
647
        if stop_revision is None:
 
648
            stop_revision = self.source.last_revision()
 
649
        assert type(stop_revision) is str
 
650
        main_ref = self.target.ref or "refs/heads/master"
 
651
        refs = { main_ref: (None, stop_revision) }
 
652
        for name, revid in self.source.tags.get_tag_dict().iteritems():
 
653
            if self.source.repository.has_revision(revid):
 
654
                refs[tag_name_to_ref(name)] = (None, revid)
 
655
        return refs, main_ref
 
656
 
 
657
    def pull(self, overwrite=False, stop_revision=None, local=False,
 
658
             possible_transports=None):
 
659
        from dulwich.protocol import ZERO_SHA
 
660
        result = GitBranchPullResult()
 
661
        result.source_branch = self.source
 
662
        result.target_branch = self.target
 
663
        new_refs, main_ref = self._get_new_refs(stop_revision)
 
664
        def update_refs(old_refs):
 
665
            refs = dict(old_refs)
 
666
            # FIXME: Check for diverged branches
 
667
            refs.update(new_refs)
 
668
            return refs
 
669
        old_refs, new_refs = self.interrepo.fetch_refs(update_refs)
 
670
        result.old_revid = self.target.lookup_foreign_revision_id(
 
671
            old_refs.get(main_ref, ZERO_SHA))
 
672
        result.new_revid = new_refs[main_ref]
 
673
        return result
 
674
 
 
675
    def push(self, overwrite=False, stop_revision=None,
584
676
             _override_hook_source_branch=None):
585
677
        from dulwich.protocol import ZERO_SHA
586
678
        result = GitBranchPushResult()
587
679
        result.source_branch = self.source
588
680
        result.target_branch = self.target
589
 
        if stop_revision is None:
590
 
            stop_revision = self.source.last_revision()
591
 
        # FIXME: Check for diverged branches
592
 
        refs = { self.target.ref: stop_revision }
593
 
        for name, revid in self.source.tags.get_tag_dict().iteritems():
594
 
            if self.source.repository.has_revision(revid):
595
 
                refs[tag_name_to_ref(name)] = revid
596
 
        old_refs = self.target.repository._git.get_refs()
597
 
        self.target.repository.fetch_refs(self.source.repository, refs)
598
 
        result.old_revid = self.target.mapping.revision_id_foreign_to_bzr(
599
 
            old_refs.get(self.target.ref, ZERO_SHA))
600
 
        result.new_revid = refs[self.target.ref]
 
681
        new_refs, main_ref = self._get_new_refs(stop_revision)
 
682
        def update_refs(old_refs):
 
683
            refs = dict(old_refs)
 
684
            # FIXME: Check for diverged branches
 
685
            refs.update(new_refs)
 
686
            return refs
 
687
        old_refs, new_refs = self.interrepo.fetch_refs(update_refs)
 
688
        result.old_revid = self.target.lookup_foreign_revision_id(
 
689
            old_refs.get(main_ref, ZERO_SHA))
 
690
        result.new_revid = new_refs[main_ref]
601
691
        return result
602
692
 
603
693
    def lossy_push(self, stop_revision=None):
604
 
        return self._push(stop_revision=stop_revision, roundtrip=False)
605
 
        from dulwich.protocol import ZERO_SHA
606
694
        result = GitBranchPushResult()
607
695
        result.source_branch = self.source
608
696
        result.target_branch = self.target
609
 
        if stop_revision is None:
610
 
            stop_revision = self.source.last_revision()
611
 
        # FIXME: Check for diverged branches
612
 
        refs = { self.target.ref: stop_revision }
613
 
        for name, revid in self.source.tags.get_tag_dict().iteritems():
614
 
            if self.source.repository.has_revision(revid):
615
 
                refs[tag_name_to_ref(name)] = revid
616
 
        revidmap, old_refs, new_refs = self.target.repository.dfetch_refs(
617
 
            self.source.repository, refs)
618
 
        result.revidmap = revidmap
619
 
        result.old_revid = self.target.mapping.revision_id_foreign_to_bzr(
620
 
            old_refs.get(self.target.ref, ZERO_SHA))
621
 
        result.new_revid = self.target.mapping.revision_id_foreign_to_bzr(
622
 
            new_refs[self.target.ref])
 
697
        new_refs, main_ref = self._get_new_refs(stop_revision)
 
698
        def update_refs(old_refs):
 
699
            refs = dict(old_refs)
 
700
            # FIXME: Check for diverged branches
 
701
            refs.update(new_refs)
 
702
            return refs
 
703
        result.revidmap, old_refs, new_refs = self.interrepo.dfetch_refs(
 
704
            update_refs)
 
705
        result.old_revid = old_refs.get(self.target.ref, (None, NULL_REVISION))[1]
 
706
        result.new_revid = new_refs[main_ref][1]
623
707
        return result
624
708
 
625
709