/brz/remove-bazaar

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Merge foreign branch utility code.

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branch.py
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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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    )
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from bzrlib.decorators import needs_read_lock
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from bzrlib.trace import mutter
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from bzrlib.plugins.git.foreign import ForeignBranch
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from bzrlib.plugins.git.errors import LightWeightCheckoutsNotSupported
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32
 
from dulwich.objects import (
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        Commit,
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        Tag,
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        )
 
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from bzrlib.plugins.git.mapping import default_mapping
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class GitTagDict(tag.BasicTags):
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    def get_tag_dict(self):
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        ret = {}
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        for k,v in self.repository._git.tags.iteritems():
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            obj = self.repository._git.get_object(v)
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            while isinstance(obj, Tag):
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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):
51
 
                mutter("Tag %s points at object %r that is not a commit, ignoring", k, obj)
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                continue
53
 
            ret[k] = self.branch.mapping.revision_id_foreign_to_bzr(v)
 
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        for tag in self.repository._git.tags:
 
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            ret[tag.name] = default_mapping.convert_revision_id_git_to_bzr(tag.commit.id)
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        return ret
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    def set_tag(self, name, revid):
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        self.repository._git.tags[name] = revid
 
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        raise NotImplementedError(self.set_tag)
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class GitBranchConfig(config.BranchConfig):
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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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52
 
68
 
    def set_user_option(self, name, value, store=config.STORE_BRANCH, warn_masked=False):
 
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    def set_user_option(self, name, value, local=False):
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        """Force local to True"""
70
 
        config.BranchConfig.set_user_option(self, name, value, store=config.STORE_LOCATION, warn_masked=warn_masked)
 
55
        config.BranchConfig.set_user_option(self, name, value, local=True)
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72
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class GitBranchFormat(branch.BranchFormat):
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        return True
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81
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82
 
class GitBranch(ForeignBranch):
 
67
class GitBranch(branch.Branch):
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    """An adapter to git repositories for bzr Branch objects."""
84
69
 
85
 
    def __init__(self, bzrdir, repository, name, head, lockfiles):
 
70
    def __init__(self, bzrdir, repository, head, base, lockfiles):
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        self.repository = repository
87
 
        super(GitBranch, self).__init__(repository.get_mapping())
 
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        super(GitBranch, self).__init__()
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        self.control_files = lockfiles
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        self.bzrdir = bzrdir
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        self.name = name
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        self.head = head
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        self.base = bzrdir.transport.base
 
76
        self.base = base
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        self._format = GitBranchFormat()
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95
 
    def dpull(self, source, stop_revision=None):
96
 
        if stop_revision is None:
97
 
            stop_revision = source.last_revision()
98
 
        # FIXME: Check for diverged branches
99
 
        revidmap = self.repository.dfetch(source.repository, stop_revision)
100
 
        self.head, self.mapping = self.mapping.revision_id_bzr_to_foreign(revidmap[stop_revision])
101
 
        return revidmap
102
 
 
103
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    def lock_write(self):
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        self.control_files.lock_write()
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81
 
106
 
    def get_stacked_on_url(self):
107
 
        # Git doesn't do stacking (yet...)
108
 
        return None
109
 
 
110
 
    def get_parent(self):
111
 
        """See Branch.get_parent()."""
112
 
        return None
113
 
 
114
 
    def set_parent(self, url):
115
 
        pass
116
 
 
117
 
    def lock_read(self):
118
 
        self.control_files.lock_read()
119
 
 
120
 
    def unlock(self):
121
 
        self.control_files.unlock()
122
 
 
123
 
    def get_physical_lock_status(self):
124
 
        return False
125
 
 
126
 
 
127
 
class LocalGitBranch(GitBranch):
128
 
 
129
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    @needs_read_lock
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    def last_revision(self):
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        # perhaps should escape this ?
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        if self.head is None:
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            return revision.NULL_REVISION
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        return self.mapping.revision_id_foreign_to_bzr(self.head)
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    def create_checkout(self, to_location, revision_id=None, 
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                        lightweight=False, accelerator_tree=None, hardlink=False):
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        if lightweight:
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            raise LightWeightCheckoutsNotSupported()
140
 
        return self._create_heavyweight_checkout(to_location, revision_id, hardlink)
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142
 
    def _create_heavyweight_checkout(self, to_location, revision_id=None, 
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                                     hardlink=False):
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        """Create a new heavyweight checkout of this branch.
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        :param to_location: URL of location to create the new checkout in.
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        :param revision_id: Revision that should be the tip of the checkout.
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        :param hardlink: Whether to hardlink
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        :return: WorkingTree object of checkout.
150
 
        """
151
 
        checkout_branch = BzrDir.create_branch_convenience(
152
 
            to_location, force_new_tree=False, format=get_rich_root_format())
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        checkout = checkout_branch.bzrdir
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        checkout_branch.bind(self)
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        # pull up to the specified revision_id to set the initial 
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        # branch tip correctly, and seed it with history.
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        checkout_branch.pull(self, stop_revision=revision_id)
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        return checkout.create_workingtree(revision_id, hardlink=hardlink)
 
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        return default_mapping.convert_revision_id_git_to_bzr(self.head)
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    def _make_tags(self):
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        return GitTagDict(self)
162
91
 
 
92
    def get_parent(self):
 
93
        """See Branch.get_parent()."""
 
94
        return None
 
95
 
 
96
    def get_stacked_on_url(self):
 
97
        return None
 
98
 
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    def _gen_revision_history(self):
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        if self.head is None:
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            return []
166
 
        ret = list(self.repository.iter_reverse_revision_history(self.last_revision()))
 
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        skip = 0
 
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        cms = None
 
104
        ret = []
 
105
        max_count = 1000
 
106
        nextid = self.head
 
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        while cms != []:
 
108
            cms = self.repository._git.commits(self.head, max_count=max_count, skip=skip)
 
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            skip += max_count
 
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            for cm in cms:
 
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                if cm.id == nextid:
 
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                    ret.append(default_mapping.convert_revision_id_git_to_bzr(cm.id))
 
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                    if cm.parents == []:
 
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                        nextid = None
 
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                    else:
 
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                        nextid = cm.parents[0].id
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        ret.reverse()
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        return ret
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170
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    def get_config(self):
171
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        return GitBranchConfig(self)
172
122
 
 
123
    def lock_read(self):
 
124
        self.control_files.lock_read()
 
125
 
 
126
    def unlock(self):
 
127
        self.control_files.unlock()
 
128
 
 
129
    def get_physical_lock_status(self):
 
130
        return False
 
131
 
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    def get_push_location(self):
174
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        """See Branch.get_push_location."""
175
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        push_loc = self.get_config().get_user_option('push_location')
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    def set_push_location(self, location):
179
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        """See Branch.set_push_location."""
180
139
        self.get_config().set_user_option('push_location', location,
181
 
                                          store=config.STORE_LOCATION)
 
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                                          local=True)
182
141
 
183
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    def supports_tags(self):
184
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        return True
190
149
        result.set_parent(self.bzrdir.root_transport.base)
191
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        return result
192
151
 
193
 
 
194
 
class InterGitGenericBranch(branch.InterBranch):
195
 
 
196
 
    @classmethod
197
 
    def is_compatible(self, source, target):
198
 
        return isinstance(source, GitBranch)
199
 
 
200
 
    def update_revisions(self, stop_revision=None, overwrite=False,
201
 
        graph=None):
202
 
        """See InterBranch.update_revisions()."""
203
 
        # TODO: stop_revision, overwrite
204
 
        interrepo = repository.InterRepository.get(self.source.repository, self.target.repository)
205
 
        self._last_revid = None
206
 
        def determine_wants(heads):
207
 
            if not self.source.name in heads:
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)
212
 
            if self.target.repository.has_revision(self._last_revid):
213
 
                return []
214
 
            return [head]
215
 
        interrepo.fetch_objects(determine_wants, self.source.mapping)
216
 
        self.target.generate_revision_history(self._last_revid)
217
 
 
218
 
 
219
 
branch.InterBranch.register_optimiser(InterGitGenericBranch)