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#!/usr/bin/env python3
# Copyright 2014 The Chromium Authors
# 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 gzip
import io
import optparse
import sys
logfp = open('/tmp/pylog.txt', 'a+')
logfp.write('generate_test_messages.py ' + sys.version + '\n')
logfp.close()
def Die(message):
'''Prints an error message and exit the program.'''
print(message, file=sys.stderr)
sys.exit(1)
# Tempalte for the test_messages.js.
_JS_TEMPLATE = '''// GENERATED FROM %(in_file)s
goog.provide('TestMessages');
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]
def _OpenFile(filename):
if filename.endswith('.gz'):
return gzip.open(filename)
return open(filename, 'rb')
with _OpenFile(in_file_name) as in_file:
json = in_file.read().decode('utf-8').strip()
with io.open(options.output_file, 'w', encoding='utf-8') as out_file:
out_file.write(_JS_TEMPLATE % {'in_file': in_file_name, 'json': json})
if __name__ == '__main__':
main()
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