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#!/usr/bin/env python3
# Copyright 2023 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# This utility minifies JS files with terser.
#
# Instance of 'node' has no 'RunNode' member (no-member)
# pylint: disable=no-member
import argparse
import os
import sys
_HERE_PATH = os.path.dirname(__file__)
_SRC_PATH = os.path.normpath(os.path.join(_HERE_PATH, '..', '..', '..', '..'))
_CWD = os.getcwd()
sys.path.append(os.path.join(_SRC_PATH, 'third_party', 'node'))
import node
import node_modules
def MinifyFile(input_file, output_file):
node.RunNode([
node_modules.PathToTerser(), input_file, '--mangle', '--compress',
'--comments', 'false', '--output', output_file
])
def main(argv):
parser = argparse.ArgumentParser()
parser.add_argument('--input', required=True)
parser.add_argument('--output', required=True)
args = parser.parse_args(argv)
# Delete the output file if it already exists. It may be a sym link to the
# input, because in non-optimized/pre-Terser builds the input file is copied
# to the output location with gn copy().
out_path = os.path.join(_CWD, args.output)
if (os.path.exists(out_path)):
os.remove(out_path)
MinifyFile(os.path.join(_CWD, args.input), out_path)
if __name__ == '__main__':
main(sys.argv[1:])
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