Synnefo

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from django.core.management.base import BaseCommand, CommandError

from optparse import make_option

from util import pool_table_from_type

POOL_CHOICES = ['bridge', 'mac-prefix']

class Command(BaseCommand):

    args = "<pool ID>"

    help = "Moidfy a pool"

    output_transaction = True

    option_list = BaseCommand.option_list + (

        make_option('--type', dest='type',

                    choices=POOL_CHOICES,

                    help="Type of pool"

                    ),

        make_option('--offset', dest='offset'),

        make_option('--base', dest='base'),

        make_option('--add-reserved', dest='add-reserved-ips',

                    help="Comma-seperated list of values to reserve"),

        make_option('--remove-reserved', dest="remove-reserved-ips",

                    help="Comma-seperated list of values to release"),

    )

    def handle(self, *args, **options):

        type_ = options['type']

        offset = options['offset']

        base = options['base']

        add_reserved = options['add-reserved-ips']

        remove_reserved = options['remove-reserved-ips']

        if not type_:

            raise CommandError("Type of pool is mandatory")

        pool_table = pool_table_from_type(type_)

        try:

            pool_id = int(args[0])

            pool_row = pool_table.objects.get(id=pool_id)

        except (ValueError, pool_table.DoesNotExist):

            raise CommandError("Invalid pool ID")

        pool = pool_row.pool

        if add_reserved:

            reserved = add_reserved.split(',')

            for value in reserved:

                pool.reserve(value, external=True)

        if remove_reserved:

            released = remove_reserved.split(',')

            for value in released:

                pool.put(value, external=True)

        pool.save(db=False)

        if offset:

            pool_row.offset = offset

        if base:

            pool_row.base = base

        pool_row.save()