/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_send_changeset(bzrlib.commands.Command):

    """Send a bundled up changset via mail.

    If no revision has been specified, the last commited change will

    be sent.

    Subject of the mail can be specified by the --subject option,

    otherwise information from the changeset log will be used.

    """

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

    takes_args = ['to?']

    def run(self, to=None, subject=None, revision=None, diff_options=None):

        from tempfile import TemporaryFile

        from bzrlib import find_branch

        from bzrlib.commands import BzrCommandError

        import gen_changeset

        import send_changeset

        import sys

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

            if len(revision) > 1:

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

            revision = revision[0]

        b = find_branch('.')

        if not to:

            try:

                to = b.controlfile('x-send-address', 'rb').read().strip('\n')

            except:

                raise BzrCommandError('destination address is not known')

        if not revision:

            revision = b.revno()

        rev = b.get_revision(b.lookup_revision(revision))

        if not subject:

            subject = rev.message.split('\n')[0]

        info = "Changset for revision %d by %s\n" % (revision, rev.committer)

        info += "with the following message:\n"

        for line in rev.message.split('\n'):

            info += "  " + line + "\n"

        message = bzrlib.osutils.get_text_message(info)

        # FIXME: StringIO instead of temporary file

        changeset_fp = TemporaryFile()

        gen_changeset.show_changeset(b, revision,

                                     external_diff_options=diff_options,

                                     to_file=changeset_fp)

        changeset_fp.seek(0)

        send_changeset.send_changeset(to, bzrlib.osutils._get_user_id(),

                                      subject, changeset_fp, message)

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']

    takes_args = []

    aliases = ['cset']

    def run(self, revision=None):

        from bzrlib import find_branch

        import gen_changeset

        import sys

        if not isinstance(revision, (list, tuple)):

            revision = [revision]

        b = find_branch('.')

        gen_changeset.show_changeset(b, revision,

                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)

bzrlib.commands.register_command(cmd_changeset)

bzrlib.commands.register_command(cmd_verify_changeset)

bzrlib.commands.register_command(cmd_apply_changeset)

bzrlib.commands.register_command(cmd_send_changeset)

bzrlib.commands.OPTIONS['subject'] = str

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')