/brz/remove-bazaar

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Viewing changes to commands.py

Fix some places where we were way too much memory for repositories with a large number of entries in the inventory and a large number of revisions.

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commands.py
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""Git-specific subcommands for Bazaar."""
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from bzrlib.commands import Command
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from bzrlib.option import Option
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class cmd_git_serve(Command):
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    """Provide access to a Bazaar branch using the git protocol.
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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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    ]
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    def run(self, directory=None):
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        lazy_check_versions()
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        from dulwich.server import TCPGitServer
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        from bzrlib.plugins.git.server import BzrBackend
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        from bzrlib.trace import warning
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        import os
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        warning("server support in bzr-git is experimental.")
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47
 
        if directory is None:
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            directory = os.getcwd()
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        backend = BzrBackend(directory)
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        server = TCPGitServer(backend, 'localhost')
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        server.serve_forever()
 
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from bzrlib.commands import (
 
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    Command,
 
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    display_command,
 
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    )
 
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from bzrlib.option import (
 
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    Option,
 
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    )
 
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from bzrlib.plugins.git import (
 
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    get_rich_root_format,
 
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    )
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class cmd_git_import(Command):
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    """Import all branches from a git repository.
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    """
59
39
 
60
 
    takes_args = ["src_location", "dest_location"]
61
 
 
62
 
    def run(self, src_location, dest_location):
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        from bzrlib.bzrdir import BzrDir, format_registry
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        from bzrlib.errors import NoRepositoryPresent, NotBranchError
65
 
        from bzrlib.repository import Repository
 
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    takes_args = ["src_location", "dest_location?"]
 
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    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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            )
 
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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 (
 
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            GitBranch,
 
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            extract_tags,
 
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            )
 
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        from bzrlib.plugins.git.repository import GitRepository
 
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        if dest_location is None:
 
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            dest_location = os.path.basename(src_location.rstrip("/\\"))
 
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        source_repo = Repository.open(src_location)
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        format = format_registry.make_bzrdir('rich-root-pack')
 
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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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            target_repo = target_bzrdir.find_repository()
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        except NoRepositoryPresent:
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            target_repo = target_bzrdir.create_repository(shared=True)
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        target_repo.fetch(source_repo)
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        for name, ref in source_repo._git.heads().iteritems():
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            head_loc = os.path.join(dest_location, name)
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            try:
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                head_bzrdir = BzrDir.open(head_loc)
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            except NotBranchError:
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                head_bzrdir = BzrDir.create(head_loc, format=format)
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            try:
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                head_branch = head_bzrdir.open_branch()
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            except NotBranchError:
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                head_branch = head_bzrdir.create_branch()
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            head_branch.generate_revision_history(source_repo.get_mapping().revision_id_foreign_to_bzr(ref))
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        if not target_repo.supports_rich_root():
 
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            raise BzrCommandError("Target repository doesn't support rich roots")
 
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        interrepo = InterRepository.get(source_repo, target_repo)
 
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        mapping = source_repo.get_mapping()
 
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        refs = interrepo.fetch_refs()
 
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        tags = {}
 
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        for k, v in extract_tags(refs).iteritems():
 
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            tags[k] = mapping.revision_id_foreign_to_bzr(v)
 
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        pb = ui.ui_factory.nested_progress_bar()
 
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        try:
 
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            for i, (name, ref) in enumerate(refs.iteritems()):
 
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                if name.startswith("refs/tags/"):
 
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                    continue
 
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                pb.update("creating branches", i, len(refs))
 
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                head_loc = os.path.join(dest_location, name)
 
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                try:
 
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                    head_bzrdir = BzrDir.open(head_loc)
 
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                except NotBranchError:
 
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                    parent_path = urlutils.dirname(head_loc)
 
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                    if not os.path.isdir(parent_path):
 
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                        os.makedirs(parent_path)
 
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                    head_bzrdir = BzrDir.create(head_loc, format=format)
 
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                try:
 
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                    head_branch = head_bzrdir.open_branch()
 
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                except NotBranchError:
 
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                    head_branch = head_bzrdir.create_branch()
 
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                revid = mapping.revision_id_foreign_to_bzr(ref)
 
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                source_branch = GitBranch(source_repo.bzrdir, source_repo, 
 
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                    name, None, tags)
 
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                source_branch.head = ref
 
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                if head_branch.last_revision() != revid:
 
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                    head_branch.generate_revision_history(revid)
 
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                source_branch.tags.merge_to(head_branch.tags)
 
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        finally:
 
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            pb.finished()
 
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119
 
 
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class cmd_git_object(Command):
 
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    """List or display Git objects by SHA.
 
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    Cat a particular object's Git representation if a SHA is specified.
 
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    List all available SHAs otherwise.
 
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    """
 
126
 
 
127
    hidden = True
 
128
 
 
129
    aliases = ["git-objects", "git-cat"]
 
130
    takes_args = ["sha1?"]
 
131
    takes_options = [Option('directory', 
 
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        short_name='d',
 
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        help='Location of repository.', type=unicode),
 
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        Option('pretty', help='Pretty-print objects.')]
 
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    encoding_type = 'exact'
 
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137
    @display_command
 
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    def run(self, sha1=None, directory=".", pretty=False):
 
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        from bzrlib.errors import (
 
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            BzrCommandError,
 
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            )
 
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        from bzrlib.bzrdir import (
 
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            BzrDir,
 
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            )
 
145
        bzrdir, _ = BzrDir.open_containing(directory)
 
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        repo = bzrdir.find_repository()
 
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        from bzrlib.plugins.git.object_store import (
 
148
            get_object_store,
 
149
            )
 
150
        object_store = get_object_store(repo)
 
151
        repo.lock_read()
 
152
        try:
 
153
            if sha1 is not None:
 
154
                try:
 
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                    obj = object_store[str(sha1)]
 
156
                except KeyError:
 
157
                    raise BzrCommandError("Object not found: %s" % sha1)
 
158
                if pretty:
 
159
                    text = obj.as_pretty_string()
 
160
                else:
 
161
                    text = obj.as_raw_string()
 
162
                self.outf.write(text)
 
163
            else:
 
164
                for sha1 in object_store:
 
165
                    self.outf.write("%s\n" % sha1)
 
166
        finally:
 
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            repo.unlock()