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#!/usr/bin/env python

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"""

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    Extract a list of $INCLUDE paths from a zone file.

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"""

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import logging; log = logging.getLogger('pvl.dns-includes')

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import optparse

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import pvl.args

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import pvl.dns

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import pvl.dns.process

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def main (argv):

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    parser = optparse.OptionParser(main.__doc__)

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    parser.add_option_group(pvl.args.parser(parser))

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    parser.add_option_group(pvl.dns.process.optparser(parser))

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    parser.add_option('--include-path',         metavar='PATH',

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            help="Rewrite includes to given absolute path")

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    # input

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    options, args = pvl.args.parse(parser, argv)

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    # process

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    zone = list(pvl.dns.process.apply_zone(options, args))

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    if options.include_path:

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        log.info("Set zone include path: %s", options.include_path)

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        zone = list(pvl.dns.process.zone_includes_path(zone, options.include_path))

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    for include in pvl.dns.process.zone_includes(zone):

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        # output include path only

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        print include

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    return 0

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if __name__ == '__main__':

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    pvl.args.main(main)