/brz/remove-bazaar

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Viewing changes to commands.py

'bzr git-object' without arguments now prints the available git objects.

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commands.py
 
1
# Copyright (C) 2006-2009 Canonical Ltd
 
2
 
 
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# Authors: Robert Collins <robert.collins@canonical.com>
 
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#          Jelmer Vernooij <jelmer@samba.org>
 
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#          John Carr <john.carr@unrouted.co.uk>
 
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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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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
16
#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
19
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
20
 
 
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"""Git-specific subcommands for Bazaar."""
 
22
 
 
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from bzrlib.commands import (
 
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    Command,
 
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    )
 
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from bzrlib.option import (
 
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    Option,
 
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    )
 
29
 
 
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from bzrlib.plugins.git import (
 
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    get_rich_root_format,
 
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    )
 
33
 
 
34
class cmd_git_serve(Command):
 
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    """Provide access to a Bazaar branch using the git protocol.
 
36
 
 
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    This command is experimental and doesn't do much yet.
 
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    """
 
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    takes_options = [
 
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        Option('directory',
 
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               help='serve contents of directory',
 
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               type=unicode)
 
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    ]
 
44
 
 
45
    def run(self, directory=None):
 
46
        lazy_check_versions()
 
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        from dulwich.server import TCPGitServer
 
48
        from bzrlib.plugins.git.server import BzrBackend
 
49
        from bzrlib.trace import warning
 
50
        import os
 
51
 
 
52
        warning("server support in bzr-git is experimental.")
 
53
 
 
54
        if directory is None:
 
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            directory = os.getcwd()
 
56
 
 
57
        backend = BzrBackend(directory)
 
58
 
 
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        server = TCPGitServer(backend, 'localhost')
 
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        server.serve_forever()
 
61
 
 
62
 
 
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class cmd_git_import(Command):
 
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    """Import all branches from a git repository.
 
65
 
 
66
    """
 
67
 
 
68
    takes_args = ["src_location", "dest_location?"]
 
69
 
 
70
    def run(self, src_location, dest_location=None):
 
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        import os
 
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        from bzrlib import (
 
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            ui,
 
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            urlutils,
 
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            )
 
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        from bzrlib.bzrdir import (
 
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            BzrDir,
 
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            format_registry,
 
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            )
 
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        from bzrlib.errors import (
 
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            BzrCommandError,
 
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            NoRepositoryPresent,
 
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            NotBranchError,
 
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            )
 
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        from bzrlib.repository import (
 
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            InterRepository,
 
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            Repository,
 
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            )
 
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        from bzrlib.plugins.git.branch import GitBranch
 
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        from bzrlib.plugins.git.repository import GitRepository
 
91
 
 
92
        if dest_location is None:
 
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            dest_location = os.path.basename(src_location.rstrip("/\\"))
 
94
 
 
95
        source_repo = Repository.open(src_location)
 
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        if not isinstance(source_repo, GitRepository):
 
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            raise BzrCommandError("%r is not a git repository" % src_location)
 
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        format = get_rich_root_format()
 
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        try:
 
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            target_bzrdir = BzrDir.open(dest_location)
 
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        except NotBranchError:
 
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            target_bzrdir = BzrDir.create(dest_location, format=format)
 
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        try:
 
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            target_repo = target_bzrdir.open_repository()
 
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        except NoRepositoryPresent:
 
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            target_repo = target_bzrdir.create_repository(shared=True)
 
107
 
 
108
        interrepo = InterRepository.get(source_repo, target_repo)
 
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        mapping = source_repo.get_mapping()
 
110
        refs = interrepo.fetch_refs()
 
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        pb = ui.ui_factory.nested_progress_bar()
 
112
        try:
 
113
            for i, (name, ref) in enumerate(refs.iteritems()):
 
114
                if name.startswith("refs/tags/"):
 
115
                    continue
 
116
                pb.update("creating branches", i, len(refs))
 
117
                head_loc = os.path.join(dest_location, name)
 
118
                try:
 
119
                    head_bzrdir = BzrDir.open(head_loc)
 
120
                except NotBranchError:
 
121
                    parent_path = urlutils.dirname(head_loc)
 
122
                    if not os.path.isdir(parent_path):
 
123
                        os.makedirs(parent_path)
 
124
                    head_bzrdir = BzrDir.create(head_loc, format=format)
 
125
                try:
 
126
                    head_branch = head_bzrdir.open_branch()
 
127
                except NotBranchError:
 
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                    head_branch = head_bzrdir.create_branch()
 
129
                revid = mapping.revision_id_foreign_to_bzr(ref)
 
130
                source_branch = GitBranch(source_repo.bzrdir, source_repo, 
 
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                    name, ref, None)
 
132
                head_branch.generate_revision_history(revid)
 
133
                source_branch.tags.merge_to(head_branch.tags)
 
134
        finally:
 
135
            pb.finished()
 
136
 
 
137
 
 
138
def repo_get_object_store(repo):
 
139
    from bzrlib.plugins.git.converter import (
 
140
        BazaarObjectStore,
 
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        )
 
142
    from bzrlib.plugins.git.mapping import (
 
143
        default_mapping,
 
144
        )
 
145
    from bzrlib.plugins.git.repository import (
 
146
        GitRepository,
 
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        )
 
148
    if isinstance(repo, GitRepository):
 
149
        return repo._git.object_store
 
150
    else:
 
151
        return BazaarObjectStore(repo, default_mapping)
 
152
 
 
153
 
 
154
class cmd_git_object(Command):
 
155
    """List or display Git objects by SHA.
 
156
    
 
157
    Cat a particular object's Git representation if a SHA is specified.
 
158
    List all available SHAs otherwise.
 
159
    """
 
160
 
 
161
    hidden = True
 
162
 
 
163
    aliases = ["git-objects", "git-cat"]
 
164
    takes_args = ["sha1?"]
 
165
    takes_options = [Option('directory', 
 
166
        help='location of repository', type=unicode)]
 
167
 
 
168
    def run(self, sha1=None, directory="."):
 
169
        from bzrlib.errors import (
 
170
            BzrCommandError,
 
171
            )
 
172
        from bzrlib.bzrdir import (
 
173
            BzrDir,
 
174
            )
 
175
        bzrdir, _ = BzrDir.open_containing(directory)
 
176
        repo = bzrdir.find_repository()
 
177
        object_store = repo_get_object_store(repo)
 
178
        repo.lock_read()
 
179
        try:
 
180
            if sha1 is not None:
 
181
                try:
 
182
                    obj = object_store[sha1]
 
183
                except KeyError:
 
184
                    raise BzrCommandError("Object not found: %s" % sha1)
 
185
                self.outf.write(obj.as_raw_string())
 
186
            else:
 
187
                for sha1 in object_store:
 
188
                    self.outf.write("%s\n" % sha1)
 
189
        finally:
 
190
            repo.unlock()