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#!/usr/bin/env python
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
'''Generates test_messages.js from an extension message json file.'''
import optparse
import sys
def Die(message):
'''Prints an error message and exit the program.'''
print >>sys.stderr, message
sys.exit(1)
# Tempalte for the test_messages.js.
_JS_TEMPLATE = '''// GENERATED FROM %(in_file)s
goog.provide('cvox.TestMessages');
cvox.TestMessages = %(json)s;
'''
def main():
parser = optparse.OptionParser(description=__doc__)
parser.add_option('-o', '--output_file', action='store',
metavar='SPEC',
help=('Where to output the generated deps file.'))
options, args = parser.parse_args()
if options.output_file is None:
Die('Output file not specified')
if len(args) != 1:
Die('Exactly one input file must be specified')
in_file_name = args[0];
with open(in_file_name) as in_file:
json = in_file.read().strip()
with open(options.output_file, 'w') as out_file:
out_file.write(_JS_TEMPLATE % {'in_file': in_file_name, 'json': json})
if __name__ == '__main__':
main()
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