# ------------------------------------------------------------------------------
# OCCAM
#
# Copyright © 2011-2012, SRI International
#
#  All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# * Neither the name of SRI International nor the names of its contributors may
#   be used to endorse or promote products derived from this software without
#   specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ------------------------------------------------------------------------------

from occam import toolchain
from occam import target
from occam import driver
from occam.target import ArgError
import getopt

class WatchTool (target.Target):
    def opts(self, args):
        return getopt.getopt(args, 'o:', [])

    def usage(self):
        return "%s -o <output.bc> <input.bc> <watch.watch>+" % self.name
    def desc(self):
        return """  Watch the given module with the given watch specifications."""
    def args(self):
        return []

    def run(self, cfg, flags, args):
        if len(args) < 2:
            raise ArgError()

        input_file = args[0]
        interfaces = args[1:]
        output_file = target.flag(flags, '-o')
        if output_file is None:
            raise ArgError()
                
        return driver.previrt(input_file, output_file, 
                              ['-Pwatch2'] + 
                              driver.all_args('-Pwatch2-input',
                                              interfaces))

target.register('watch', WatchTool('watch'))
            
