import sys
import subprocess

srcdir = '.'
blddir = 'build'
VERSION = '0.4.11'

def node_arch():
  if sys.platform != 'darwin':
    return
  cmd = [ 'node', '-e', 'console.log(process.arch)' ]
  p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  out = p.communicate()[0].split('\n')[0]
  return out

def set_options(opt):
  opt.tool_options('compiler_cxx')

def configure(conf):
  conf.check_tool('compiler_cxx')
  conf.check_tool('node_addon')
  flags = ['-O3']
  arch = node_arch()
  arch_mappings = {'ia32': 'i386', 'x64': 'x86_64'}
  if arch in arch_mappings:
    arch = arch_mappings[arch]
    flags += ['-arch', arch]
  conf.env.append_value('CCFLAGS', flags)
  conf.env.append_value('CXXFLAGS', flags)
  conf.env.append_value('LINKFLAGS', flags)

def build(bld):
  obj = bld.new_task_gen('cxx', 'shlib', 'node_addon')
  obj.target = 'validation'
  obj.source = 'src/validation.cc'
  obj2 = bld.new_task_gen('cxx', 'shlib', 'node_addon')
  obj2.target = 'bufferutil'
  obj2.source = 'src/bufferutil.cc'