generate_config_gypi.py

# Copyright (c) 2013-2019 GitHub Inc.
# Copyright 2019 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import re
import os
import subprocess
import sys

root_dir = os.path.dirname(os.path.dirname(__file__))
sys.path.append(os.path.join(root_dir, 'node', 'tools'))
import getmoduleversion

GN_RE = re.compile(r'(\w+)\s+=\s+(.*?)$', re.MULTILINE)

def bool_string_to_number(v):
  return 1 if v == 'true' else 0

def string_to_number(v):
  return int(v)

def translate_config(config):
  if sys.platform == 'darwin':
    shlib_suffix = 'dylib'
  else:
    shlib_suffix = 'so'

  return {
    'target_defaults': {
      'default_configuration':
          'Debug' if config['is_debug'] == 'true' else 'Release',
    },
    'variables': {
      'asan': bool_string_to_number(config['is_asan']),
      'node_module_version': string_to_number(config['node_module_version']),
      'node_report': config['node_report'],
      'node_shared': bool_string_to_number(config['is_component_build']),
      'node_code_cache_path':
          'node_code_cache.cc' if config['node_use_code_cache'] else '',
      'shlib_suffix': shlib_suffix,
      # v8_enable_inspector is actually a misnomer, and only affects node.
      'v8_enable_inspector':
          bool_string_to_number(config['node_enable_inspector']),
      'v8_enable_i18n_support':
          bool_string_to_number(config['v8_enable_i18n_support']),
      # introduced for building addons.
      'node_use_openssl': config['node_use_openssl'],
      'build_v8_with_gn': 'false',
      'enable_lto': 'false',
      'openssl_fips': '',
    }
  }

def main(jinja_dir, gn_out_dir, output_file, depfile):
  # Get GN config and parse into a dictionary.
  gnconfig = subprocess.check_output(
                 ['gn', 'args', '--list', '--short', '-C', gn_out_dir])
  config = dict(re.findall(GN_RE, gnconfig))
  config['node_module_version'] = getmoduleversion.get_version()

  # Write output.
  with open(output_file, 'w') as f:
    f.write(repr(translate_config(config)))

  # Write depfile. Force regenerating config.gypi when GN configs change.
  with open(depfile, 'w') as f:
    dot_gn = os.path.abspath(os.path.join(root_dir, '.gn'))
    args_gn = os.path.abspath(os.path.join(gn_out_dir, 'args.gn'))
    if not os.path.exists(args_gn):
      with open(args_gn, 'w') as args_file:
        args_file.write('# Dummy args.gn file')
    f.write('%s: %s %s' %(output_file, dot_gn, args_gn))

if __name__ == '__main__':
  main(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4])