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#!/usr/bin/env python
# Copyright (c) 2012 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.
"""This script is used by chrome_tests.gypi's js2webui action to maintain the
argument lists and to generate inlinable tests.
"""
from __future__ import print_function
import json
import argparse
import os
import subprocess
import sys
import shutil
def HasSameContent(filename, content):
'''Returns true if the given file is readable and has the given content.'''
try:
with open(filename, 'rb') as file:
return file.read() == content
except:
# Ignore all errors and fall back on a safe bet.
return False
def main ():
parser = argparse.ArgumentParser()
parser.add_argument('v8_shell')
parser.add_argument('test_api_js')
parser.add_argument('js2webui_js')
parser.add_argument('test_type')
parser.add_argument('inputfile')
parser.add_argument('srcrootdir')
parser.add_argument('cxxoutfile')
parser.add_argument('jsoutfile')
parser.add_argument('-v', '--verbose', action='store_true')
parser.add_argument('-n',
'--impotent',
action='store_true',
help="don't execute; just print (as if verbose)")
parser.add_argument('--deps_js',
action="store",
help=("Path to deps.js for dependency resolution, " +
"optional."))
parser.add_argument('--external',
action='store',
help="Load V8's initial snapshot from " +
"external files (y/n)")
args = parser.parse_args()
cmd = [args.v8_shell]
arguments = [
args.js2webui_js, args.inputfile, args.srcrootdir, args.deps_js,
args.cxxoutfile, args.test_type
]
cmd.extend([
'-e', "arguments=" + json.dumps(arguments), args.test_api_js,
args.js2webui_js
])
if args.verbose or args.impotent:
print(cmd)
if not args.impotent:
try:
p = subprocess.Popen(
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=0)
out, err = p.communicate()
if p.returncode != 0:
sys.stderr.write((out + err).decode('utf-8'))
return 1
if not HasSameContent(args.cxxoutfile, out):
with open(args.cxxoutfile, 'wb') as f:
f.write(out)
shutil.copyfile(args.inputfile, args.jsoutfile)
except Exception as ex:
if os.path.exists(args.cxxoutfile):
os.remove(args.cxxoutfile)
if os.path.exists(args.jsoutfile):
os.remove(args.jsoutfile)
raise
if __name__ == '__main__':
sys.exit(main())
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