/brz/remove-bazaar

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branch.py
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# Copyright (C) 2007 Canonical Ltd
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# Copyright (C) 2009 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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"""An adapter between a Git Branch and a Bazaar Branch"""
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18
 
20
 
from dulwich.objects import (
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    Commit,
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    Tag,
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    )
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from bzrlib import (
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    branch,
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    config,
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    repository,
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    revision,
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    tag,
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    transport,
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    )
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from bzrlib.decorators import (
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    needs_read_lock,
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    )
36
 
from bzrlib.trace import (
37
 
    mutter,
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    )
39
 
 
40
 
from bzrlib.plugins.git.errors import (
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    NoSuchRef,
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    )
43
 
from bzrlib.plugins.git.foreign import (
44
 
    ForeignBranch,
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    )
46
 
 
47
 
 
48
 
class LocalGitTagDict(tag.BasicTags):
49
 
    """Dictionary with tags in a local repository."""
 
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    )
 
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from bzrlib.decorators import needs_read_lock
 
27
from bzrlib.trace import mutter
 
28
 
 
29
from bzrlib.plugins.git.foreign import ForeignBranch
 
30
from bzrlib.plugins.git.errors import LightWeightCheckoutsNotSupported
 
31
 
 
32
from dulwich.objects import (
 
33
        Commit,
 
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        Tag,
 
35
        )
 
36
 
 
37
class GitTagDict(tag.BasicTags):
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    def __init__(self, branch):
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        self.branch = branch
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                v = obj.object[1]
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                obj = self.repository._git.get_object(v)
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            if not isinstance(obj, Commit):
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                mutter("Tag %s points at object %r that is not a commit, "
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                       "ignoring", k, obj)
 
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                mutter("Tag %s points at object %r that is not a commit, ignoring", k, obj)
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                continue
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            ret[k] = self.branch.mapping.revision_id_foreign_to_bzr(v)
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        return ret
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        # do not provide a BranchDataConfig
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        self.option_sources = self.option_sources[0], self.option_sources[2]
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67
 
81
 
    def set_user_option(self, name, value, store=config.STORE_BRANCH,
82
 
            warn_masked=False):
 
68
    def set_user_option(self, name, value, store=config.STORE_BRANCH, warn_masked=False):
83
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        """Force local to True"""
84
 
        config.BranchConfig.set_user_option(self, name, value,
85
 
            store=config.STORE_LOCATION, warn_masked=warn_masked)
 
70
        config.BranchConfig.set_user_option(self, name, value, store=config.STORE_LOCATION, warn_masked=warn_masked)
86
71
 
87
72
 
88
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class GitBranchFormat(branch.BranchFormat):
93
78
    def supports_tags(self):
94
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        return True
95
80
 
96
 
    def make_tags(self, branch):
97
 
        if getattr(branch.repository, "get_refs", None) is not None:
98
 
            from bzrlib.plugins.git.remote import RemoteGitTagDict
99
 
            return RemoteGitTagDict(branch)
100
 
        else:
101
 
            return LocalGitTagDict(branch)
102
 
 
103
81
 
104
82
class GitBranch(ForeignBranch):
105
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    """An adapter to git repositories for bzr Branch objects."""
106
84
 
107
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    def __init__(self, bzrdir, repository, name, head, lockfiles):
108
86
        self.repository = repository
109
 
        self._format = GitBranchFormat()
 
87
        super(GitBranch, self).__init__(repository.get_mapping())
110
88
        self.control_files = lockfiles
111
89
        self.bzrdir = bzrdir
112
 
        super(GitBranch, self).__init__(repository.get_mapping())
113
90
        self.name = name
114
91
        self.head = head
115
92
        self.base = bzrdir.transport.base
116
 
 
117
 
    def _get_nick(self, local=False, possible_master_transports=None):
118
 
        """Find the nick name for this branch.
119
 
 
120
 
        :return: Branch nick
121
 
        """
122
 
        return self.name
123
 
 
124
 
    nick = property(_get_nick)
 
93
        self._format = GitBranchFormat()
125
94
 
126
95
    def dpull(self, source, stop_revision=None):
127
96
        if stop_revision is None:
128
97
            stop_revision = source.last_revision()
129
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        # FIXME: Check for diverged branches
130
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        revidmap = self.repository.dfetch(source.repository, stop_revision)
131
 
        self.head, self.mapping = self.mapping.revision_id_bzr_to_foreign(
132
 
            revidmap[stop_revision])
133
 
        self.repository._git.set_ref(self.name, self.head)
 
100
        self.head, self.mapping = self.mapping.revision_id_bzr_to_foreign(revidmap[stop_revision])
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101
        return revidmap
135
102
 
136
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    def lock_write(self):
142
109
 
143
110
    def get_parent(self):
144
111
        """See Branch.get_parent()."""
145
 
        # FIXME: Set "origin" url from .git/config ?
146
112
        return None
147
113
 
148
114
    def set_parent(self, url):
149
 
        # FIXME: Set "origin" url in .git/config ?
150
115
        pass
151
116
 
152
117
    def lock_read(self):
160
125
 
161
126
 
162
127
class LocalGitBranch(GitBranch):
163
 
    """A local Git branch."""
164
128
 
165
129
    @needs_read_lock
166
130
    def last_revision(self):
169
133
            return revision.NULL_REVISION
170
134
        return self.mapping.revision_id_foreign_to_bzr(self.head)
171
135
 
172
 
    def _get_checkout_format(self):
173
 
        """Return the most suitable metadir for a checkout of this branch.
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        Weaves are used if this branch's repository uses weaves.
175
 
        """
176
 
        format = self.repository.bzrdir.checkout_metadir()
177
 
        format.set_branch_format(self._format)
178
 
        return format
179
 
 
180
 
    def create_checkout(self, to_location, revision_id=None, lightweight=False,
181
 
        accelerator_tree=None, hardlink=False):
 
136
    def create_checkout(self, to_location, revision_id=None, 
 
137
                        lightweight=False, accelerator_tree=None, hardlink=False):
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        if lightweight:
183
 
            t = transport.get_transport(to_location)
184
 
            t.ensure_base()
185
 
            format = self._get_checkout_format()
186
 
            checkout = format.initialize_on_transport(t)
187
 
            from_branch = branch.BranchReferenceFormat().initialize(checkout, 
188
 
                self)
189
 
            tree = checkout.create_workingtree(revision_id,
190
 
                from_branch=from_branch, hardlink=hardlink)
191
 
            return tree
192
 
        else:
193
 
            return self._create_heavyweight_checkout(to_location, revision_id,
194
 
            hardlink)
 
139
            raise LightWeightCheckoutsNotSupported()
 
140
        return self._create_heavyweight_checkout(to_location, revision_id, hardlink)
195
141
 
196
142
    def _create_heavyweight_checkout(self, to_location, revision_id=None, 
197
143
                                     hardlink=False):
211
157
        checkout_branch.pull(self, stop_revision=revision_id)
212
158
        return checkout.create_workingtree(revision_id, hardlink=hardlink)
213
159
 
 
160
    def _make_tags(self):
 
161
        return GitTagDict(self)
 
162
 
214
163
    def _gen_revision_history(self):
215
164
        if self.head is None:
216
165
            return []
217
 
        ret = list(self.repository.iter_reverse_revision_history(
218
 
            self.last_revision()))
 
166
        ret = list(self.repository.iter_reverse_revision_history(self.last_revision()))
219
167
        ret.reverse()
220
168
        return ret
221
169
 
235
183
    def supports_tags(self):
236
184
        return True
237
185
 
 
186
    def sprout(self, to_bzrdir, revision_id=None):
 
187
        """See Branch.sprout()."""
 
188
        result = to_bzrdir.create_branch()
 
189
        self.copy_content_into(result, revision_id=revision_id)
 
190
        result.set_parent(self.bzrdir.root_transport.base)
 
191
        return result
 
192
 
238
193
 
239
194
class InterGitGenericBranch(branch.InterBranch):
240
 
    """InterBranch implementation that pulls from Git into bzr."""
241
195
 
242
196
    @classmethod
243
197
    def is_compatible(self, source, target):
246
200
    def update_revisions(self, stop_revision=None, overwrite=False,
247
201
        graph=None):
248
202
        """See InterBranch.update_revisions()."""
249
 
        interrepo = repository.InterRepository.get(self.source.repository, 
250
 
            self.target.repository)
 
203
        # TODO: stop_revision, overwrite
 
204
        interrepo = repository.InterRepository.get(self.source.repository, self.target.repository)
251
205
        self._last_revid = None
252
206
        def determine_wants(heads):
253
207
            if not self.source.name in heads:
254
 
                raise NoSuchRef(self.source.name, heads.keys())
255
 
            if stop_revision is not None:
256
 
                self._last_revid = stop_revision
257
 
                head, mapping = self.source.repository.lookup_git_revid(
258
 
                    stop_revision)
259
 
            else:
260
 
                head = heads[self.source.name]
261
 
                self._last_revid = \
262
 
                    self.source.mapping.revision_id_foreign_to_bzr(head)
 
208
                raise BzrError("No such remote branch '%s', found: %r" % (
 
209
                    self.source.name, heads.keys()))
 
210
            head = heads[self.source.name]
 
211
            self._last_revid = self.source.mapping.revision_id_foreign_to_bzr(head)
263
212
            if self.target.repository.has_revision(self._last_revid):
264
213
                return []
265
214
            return [head]
266
215
        interrepo.fetch_objects(determine_wants, self.source.mapping)
267
 
        if overwrite:
268
 
            prev_last_revid = None
269
 
        else:
270
 
            prev_last_revid = self.target.last_revision()
271
 
        self.target.generate_revision_history(self._last_revid, prev_last_revid)
 
216
        self.target.set_last_revision(last_revid)
272
217
 
273
218
 
274
219
branch.InterBranch.register_optimiser(InterGitGenericBranch)