#!/usr/bin/env python

import os

import platform

import sys

try:

  import multiprocessing.synchronize

  gyp_parallel_support = True

except ImportError:

  gyp_parallel_support = False

CC = os.environ.get('CC', 'cc')

script_dir = os.path.dirname(__file__)

uv_root = os.path.normpath(script_dir)

output_dir = os.path.join(os.path.abspath(uv_root), 'out')

sys.path.insert(0, os.path.join(uv_root, 'build', 'gyp', 'pylib'))

try:

  import gyp

except ImportError:

  print('You need to install gyp in build/gyp first. See the README.')

  sys.exit(42)

def host_arch():

  machine = platform.machine()

  if machine == 'i386': return 'ia32'

  if machine == 'AMD64': return 'x64'

  if machine == 'x86_64': return 'x64'

  if machine.startswith('arm'): return 'arm'

  if machine.startswith('mips'): return 'mips'

  return machine  # Return as-is and hope for the best.

def run_gyp(args):

  rc = gyp.main(args)

  if rc != 0:

    print('Error running GYP')

    sys.exit(rc)

if __name__ == '__main__':

  args = sys.argv[1:]

  args.extend('-I common.gypi test/test.gyp'.split(' '))

  args.append('--depth=' + uv_root)

  # There's a bug with windows which doesn't allow this feature.

  if sys.platform != 'win32':

    if '-f' not in args:

      args.extend('-f make'.split())

    if 'eclipse' not in args and 'ninja' not in args:

      args.extend(['-Goutput_dir=' + output_dir])

      args.extend(['--generator-output', output_dir])

  if not any(a.startswith('-Dhost_arch=') for a in args):

    args.append('-Dhost_arch=%s' % host_arch())

  if not any(a.startswith('-Dtarget_arch=') for a in args):

    args.append('-Dtarget_arch=%s' % host_arch())

  if not any(a.startswith('-Duv_library=') for a in args):

    args.append('-Duv_library=static_library')

  # Some platforms (OpenBSD for example) don't have multiprocessing.synchronize

  # so gyp must be run with --no-parallel

  if not gyp_parallel_support:

    args.append('--no-parallel')

  gyp_args = list(args)

  print(gyp_args)

  run_gyp(gyp_args)