/brz/remove-bazaar

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  • Committer: Robert Collins
  • Date: 2010-05-06 07:48:22 UTC
  • mto: This revision was merged to the branch mainline in revision 5223.
  • Revision ID: robertc@robertcollins.net-20100506074822-0bsgf2j4h8jx0xkk
Added ``bzrlib.tests.matchers`` as a place to put matchers, along with
our first in-tree matcher. See the module docstring for details.
(Robert Collins)

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branch.py
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# Copyright (C) 2007 Canonical Ltd
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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
5
 
# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
7
 
#
8
 
# This program is distributed in the hope that it will be useful,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 
# GNU General Public License for more details.
12
 
#
13
 
# You should have received a copy of the GNU General Public License
14
 
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
 
 
17
 
"""An adapter between a Git Branch and a Bazaar Branch"""
18
 
 
19
 
from bzrlib import (
20
 
    branch,
21
 
    config,
22
 
    revision,
23
 
    tag,
24
 
    )
25
 
from bzrlib.decorators import needs_read_lock
26
 
from bzrlib.trace import mutter
27
 
 
28
 
from bzrlib.plugins.git.foreign import ForeignBranch
29
 
from bzrlib.plugins.git.errors import LightWeightCheckoutsNotSupported
30
 
 
31
 
from dulwich.objects import (
32
 
        Commit,
33
 
        Tag,
34
 
        )
35
 
 
36
 
class GitTagDict(tag.BasicTags):
37
 
 
38
 
    def __init__(self, branch):
39
 
        self.branch = branch
40
 
        self.repository = branch.repository
41
 
 
42
 
    def get_tag_dict(self):
43
 
        ret = {}
44
 
        for k,v in self.repository._git.tags.iteritems():
45
 
            obj = self.repository._git.get_object(v)
46
 
            while isinstance(obj, Tag):
47
 
                v = obj.object[1]
48
 
                obj = self.repository._git.get_object(v)
49
 
            if not isinstance(obj, Commit):
50
 
                mutter("Tag %s points at object %r that is not a commit, ignoring", k, obj)
51
 
                continue
52
 
            ret[k] = self.branch.mapping.revision_id_foreign_to_bzr(v)
53
 
        return ret
54
 
 
55
 
    def set_tag(self, name, revid):
56
 
        self.repository._git.tags[name] = revid
57
 
 
58
 
 
59
 
class GitBranchConfig(config.BranchConfig):
60
 
    """BranchConfig that uses locations.conf in place of branch.conf"""
61
 
 
62
 
    def __init__(self, branch):
63
 
        config.BranchConfig.__init__(self, branch)
64
 
        # do not provide a BranchDataConfig
65
 
        self.option_sources = self.option_sources[0], self.option_sources[2]
66
 
 
67
 
    def set_user_option(self, name, value, store=config.STORE_BRANCH, warn_masked=False):
68
 
        """Force local to True"""
69
 
        config.BranchConfig.set_user_option(self, name, value, store=config.STORE_LOCATION, warn_masked=warn_masked)
70
 
 
71
 
 
72
 
class GitBranchFormat(branch.BranchFormat):
73
 
 
74
 
    def get_format_description(self):
75
 
        return 'Git Branch'
76
 
 
77
 
    def supports_tags(self):
78
 
        return True
79
 
 
80
 
 
81
 
class GitBranch(ForeignBranch):
82
 
    """An adapter to git repositories for bzr Branch objects."""
83
 
 
84
 
    def __init__(self, bzrdir, repository, name, head, lockfiles):
85
 
        self.repository = repository
86
 
        super(GitBranch, self).__init__(repository.get_mapping())
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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
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        self._format = GitBranchFormat()
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    def dpull(self, source, stop_revision=None):
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        if stop_revision is None:
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            stop_revision = source.last_revision()
97
 
        # FIXME: Check for diverged branches
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        revidmap = self.repository.dfetch(source.repository, stop_revision)
99
 
        self.head, self.mapping = self.mapping.revision_id_bzr_to_foreign(revidmap[stop_revision])
100
 
        return revidmap
101
 
 
102
 
    def lock_write(self):
103
 
        self.control_files.lock_write()
104
 
 
105
 
    def get_stacked_on_url(self):
106
 
        # Git doesn't do stacking (yet...)
107
 
        return None
108
 
 
109
 
    def get_parent(self):
110
 
        """See Branch.get_parent()."""
111
 
        return None
112
 
 
113
 
    def set_parent(self, url):
114
 
        pass
115
 
 
116
 
    def lock_read(self):
117
 
        self.control_files.lock_read()
118
 
 
119
 
    def unlock(self):
120
 
        self.control_files.unlock()
121
 
 
122
 
    def get_physical_lock_status(self):
123
 
        return False
124
 
 
125
 
 
126
 
class LocalGitBranch(GitBranch):
127
 
 
128
 
    @needs_read_lock
129
 
    def last_revision(self):
130
 
        # perhaps should escape this ?
131
 
        if self.head is None:
132
 
            return revision.NULL_REVISION
133
 
        return self.mapping.revision_id_foreign_to_bzr(self.head)
134
 
 
135
 
    def create_checkout(self, to_location, revision_id=None, 
136
 
                        lightweight=False, accelerator_tree=None, hardlink=False):
137
 
        if lightweight:
138
 
            raise LightWeightCheckoutsNotSupported()
139
 
        return self._create_heavyweight_checkout(to_location, revision_id, hardlink)
140
 
 
141
 
    def _create_heavyweight_checkout(self, to_location, revision_id=None, 
142
 
                                     hardlink=False):
143
 
        """Create a new heavyweight checkout of this branch.
144
 
 
145
 
        :param to_location: URL of location to create the new checkout in.
146
 
        :param revision_id: Revision that should be the tip of the checkout.
147
 
        :param hardlink: Whether to hardlink
148
 
        :return: WorkingTree object of checkout.
149
 
        """
150
 
        checkout_branch = BzrDir.create_branch_convenience(
151
 
            to_location, force_new_tree=False, format=get_rich_root_format())
152
 
        checkout = checkout_branch.bzrdir
153
 
        checkout_branch.bind(self)
154
 
        # pull up to the specified revision_id to set the initial 
155
 
        # branch tip correctly, and seed it with history.
156
 
        checkout_branch.pull(self, stop_revision=revision_id)
157
 
        return checkout.create_workingtree(revision_id, hardlink=hardlink)
158
 
 
159
 
    def _make_tags(self):
160
 
        return GitTagDict(self)
161
 
 
162
 
    def _gen_revision_history(self):
163
 
        if self.head is None:
164
 
            return []
165
 
        ret = list(self.repository.iter_reverse_revision_history(self.last_revision()))
166
 
        ret.reverse()
167
 
        return ret
168
 
 
169
 
    def get_config(self):
170
 
        return GitBranchConfig(self)
171
 
 
172
 
    def get_push_location(self):
173
 
        """See Branch.get_push_location."""
174
 
        push_loc = self.get_config().get_user_option('push_location')
175
 
        return push_loc
176
 
 
177
 
    def set_push_location(self, location):
178
 
        """See Branch.set_push_location."""
179
 
        self.get_config().set_user_option('push_location', location,
180
 
                                          store=config.STORE_LOCATION)
181
 
 
182
 
    def supports_tags(self):
183
 
        return True
184
 
 
185
 
    def sprout(self, to_bzrdir, revision_id=None):
186
 
        """See Branch.sprout()."""
187
 
        result = to_bzrdir.create_branch()
188
 
        self.copy_content_into(result, revision_id=revision_id)
189
 
        result.set_parent(self.bzrdir.root_transport.base)
190
 
        return result
191