source: trunk/debathena/config/printing-config/debathena/printing/simple.py @ 24763

"""A generator for simple printing utility wrapper scripts.

Given the command line options for the CUPS and LPRng forms of a
command, as well as the specific flag which specifies the print queue
to use, this module generates a main function for a wrapper script
around that command that appropriate dispatches invocations between
the CUPS and LPRng commands.
"""


import os
import sys

from debathena.printing import common


def simple(command, optinfo, queue_opt, args):
    args.pop(0)

    queue = common.get_default_printer()
    try:
        argstyle, options, arguments = common.parse_args(args, optinfo)

        # Find the last queue specified in the arguments
        queue_args, options = common.extract_opt(options, queue_opt)
        if queue_args:
            queue = queue_args[-1][-1]

        # Now that we've sliced up the arguments, put them back
        # together
        args = [o + a for o, a in options] + arguments
    except ValueError:
        # parse_args returned None, so we learned nothing. We'll just
        # go with the default queue
        pass

    if not queue:
        # We tried and couldn't figure it out, so not our problem
        common.error(2, ("\n"
                         "No default printer configured. Specify a %s option, or configure a\n"
                         "default printer via e.g. System | Administration | Printing.\n"
                         "\n" % queue_opt))

    system, server, queue = common.find_queue(queue)

    args.insert(0, '%s%s' % (queue_opt, queue))
    if server:
        os.environ['CUPS_SERVER'] = server

    common.dispatch_command(system, command, args)