1#! /usr/bin/env python
2
3# Copyright 2018 Google Inc.
4# Use of this source code is governed by a BSD-style license that can be
5# found in the LICENSE file.
6
7import argparse
8import os
9import sys
10
11fmt = '''
12target_cpu = "{arch}"
13is_debug = {debug}
14ndk = "{android_ndk_dir}"
15ndk_api = {api_level}
16skia_enable_fontmgr_empty = true
17skia_enable_pdf = false
18skia_skqp_global_error_tolerance = 8
19skia_use_dng_sdk = false
20skia_use_expat = false
21skia_use_icu = false
22skia_use_libheif = false
23skia_use_lua = false
24skia_use_piex = false
25skia_use_skcms = false
26skia_skqp_enable_driver_correctness_workarounds = {enable_workarounds}
27'''
28
29def parse_args():
30    parser = argparse.ArgumentParser(description='Generate args.gn file.')
31    parser.add_argument('target_build_dir')
32    parser.add_argument('android_ndk_dir' )
33    parser.add_argument('--arch',  metavar='architecture', default='arm',
34        help='defaults to "arm", valid values: "arm" "arm64" "x86" "x64"')
35    parser.add_argument('--api_level', type=int, metavar='api_level',
36        default=26, help='android API level, defaults to 26')
37    parser.add_argument('--enable_workarounds', default=False,
38        action='store_true', help="enable GPU work-arounds, defaults to false")
39    parser.add_argument('--debug', default=False, action='store_true',
40        help='compile native code in debug mode, defaults to false')
41
42    # parse the args and convert bools to strings.
43    args = parser.parse_args()
44    gn_bool = lambda b : 'true' if b else 'false'
45    args.enable_workarounds = gn_bool(args.enable_workarounds)
46    args.debug = gn_bool(args.debug)
47    args.android_ndk_dir = os.path.abspath(args.android_ndk_dir)
48    return args
49
50def make_args_gn(out_dir, args):
51    if not os.path.exists(out_dir):
52        os.makedirs(out_dir)
53    with open(os.path.join(out_dir, 'args.gn'), 'w') as o:
54        o.write(fmt.format(**args))
55
56if __name__ == '__main__':
57    args = parse_args()
58    make_args_gn(args.target_build_dir, vars(args))
59