/brz/remove-bazaar

#!/usr/bin/env python

"""\

This is an attempt to take the internal delta object, and represent

it as a single-file text-only changeset.

This should have commands for both generating a changeset,

and for applying a changeset.

"""

import bzrlib, bzrlib.commands

class cmd_changeset(bzrlib.commands.Command):

    """Generate a bundled up changeset.

    This changeset contains all of the meta-information of a

    diff, rather than just containing the patch information.

    Right now, rollup changesets, or working tree changesets are

    not supported. This will only generate a changeset that has been

    committed. You can use "--revision" to specify a certain change

    to display.

    """

    takes_options = ['revision', 'diff-options']

    takes_args = ['file*']

    aliases = ['cset']

    def run(self, revision=None, file_list=None, diff_options=None):

        from bzrlib import find_branch

        import gen_changeset

        import sys

        if isinstance(revision, (list, tuple)):

            if len(revision) > 1:

                raise BzrCommandError('We do not support rollup-changesets yet.')

            revision = revision[0]

        if file_list:

            b = find_branch(file_list[0])

            file_list = [b.relpath(f) for f in file_list]

            if file_list == ['']:

                # just pointing to top-of-tree

                file_list = None

        else:

            b = find_branch('.')

        gen_changeset.show_changeset(b, revision,

                specific_files=file_list,

                external_diff_options=diff_options,

                to_file=sys.stdout)

class cmd_verify_changeset(bzrlib.commands.Command):

    """Read a written changeset, and make sure it is valid.

    """

    takes_args = ['filename?']

    def run(self, filename=None):

        import sys, read_changeset

        if filename is None or filename == '-':

            f = sys.stdin

        else:

            f = open(filename, 'rb')

        cset_info = read_changeset.read_changeset(f)

        print cset_info

        cset = cset_info.get_changeset()

        print cset.entries

class cmd_apply_changeset(bzrlib.commands.Command):

    """Read in the given changeset, and apply it to the

    current tree.

    """

    takes_args = ['filename?']

    takes_options = []

    def run(self, filename=None, reverse=False, auto_commit=False):

        from bzrlib import find_branch

        import sys

        import apply_changeset

        b = find_branch('.') # Make sure we are in a branch

        if filename is None or filename == '-':

            f = sys.stdin

        else:

            f = open(filename, 'rb')

        apply_changeset.apply_changeset(b, f, reverse=reverse,

                auto_commit=auto_commit)

if hasattr(bzrlib.commands, 'register_plugin_command'):

    bzrlib.commands.register_plugin_command(cmd_changeset)

    bzrlib.commands.register_plugin_command(cmd_verify_changeset)

    bzrlib.commands.register_plugin_command(cmd_apply_changeset)

    bzrlib.commands.OPTIONS['reverse'] = None

    bzrlib.commands.OPTIONS['auto-commit'] = None

    cmd_apply_changeset.takes_options.append('reverse')

    cmd_apply_changeset.takes_options.append('auto-commit')