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# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Builds Web IDL database.
Web IDL database is a Python object that supports a variety of accessors to
IDL definitions such as IDL interface and IDL attribute.
"""
import optparse
import sys
import web_idl
def parse_options():
parser = optparse.OptionParser()
parser.add_option(
'--output', type='string', help="filepath of the resulting database")
parser.add_option(
'--runtime_enabled_features',
type='string',
action='append',
help="filepath to runtime_enabled_features.json5")
options, args = parser.parse_args()
required_option_names = ('output', 'runtime_enabled_features')
for opt_name in required_option_names:
if getattr(options, opt_name) is None:
parser.error("--{} is a required option.".format(opt_name))
if not args:
parser.error("No argument specified.")
return options, args
def main():
options, filepaths = parse_options()
web_idl.init(
runtime_enabled_features_paths=options.runtime_enabled_features)
was_error_reported = [False]
def report_error(message):
was_error_reported[0] = True
sys.stderr.writelines([message, "\n"])
database = web_idl.build_database(
filepaths=filepaths, report_error=report_error)
if was_error_reported[0]:
sys.exit("Aborted due to error.")
database.write_to_file(options.output)
if __name__ == '__main__':
main()
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