#! /usr/bin/env python
# encoding: utf-8
# WARNING! Do not edit! http://waf.googlecode.com/svn/docs/wafbook/single.html#_obtaining_the_waf_file

import sys
if sys.hexversion < 0x020400f0: from sets import Set as set
'''
To add the boost tool to the waf file:
$ ./waf-light --tools=compat15,boost
	or, if you have waf >= 1.6.2
$ ./waf update --files=boost

The wscript will look like:

def options(opt):
	opt.load('compiler_cxx boost')

def configure(conf):
	conf.load('compiler_cxx boost')
	conf.check_boost(lib='system filesystem', mt=True, static=True)

def build(bld):
	bld(source='main.cpp', target='app', use='BOOST')
'''
import sys
import re
from waflib import Utils,Logs
from waflib.Configure import conf
BOOST_LIBS=('/usr/lib','/usr/local/lib','/opt/local/lib','/sw/lib','/lib')
BOOST_INCLUDES=('/usr/include','/usr/local/include','/opt/local/include','/sw/include')
BOOST_VERSION_FILE='boost/version.hpp'
BOOST_VERSION_CODE='''
#include <iostream>
#include <boost/version.hpp>
int main() { std::cout << BOOST_LIB_VERSION << std::endl; }
'''
PLATFORM=Utils.unversioned_sys_platform()
detect_intel=lambda env:(PLATFORM=='win32')and'iw'or'il'
detect_clang=lambda env:(PLATFORM=='darwin')and'clang-darwin'or'clang'
detect_mingw=lambda env:(re.search('MinGW',env.CXX[0]))and'mgw'or'gcc'
BOOST_TOOLSETS={'borland':'bcb','clang':detect_clang,'como':'como','cw':'cw','darwin':'xgcc','edg':'edg','g++':detect_mingw,'gcc':detect_mingw,'icpc':detect_intel,'intel':detect_intel,'kcc':'kcc','kylix':'bck','mipspro':'mp','mingw':'mgw','msvc':'vc','qcc':'qcc','sun':'sw','sunc++':'sw','tru64cxx':'tru','vacpp':'xlc'}
def options(opt):
	opt.add_option('--boost-includes',type='string',default='',dest='boost_includes',help='''path to the boost directory where the includes are
				   e.g. /boost_1_45_0/include''')
	opt.add_option('--boost-libs',type='string',default='',dest='boost_libs',help='''path to the directory where the boost libs are
				   e.g. /boost_1_45_0/stage/lib''')
	opt.add_option('--boost-static',action='store_true',default=False,dest='boost_static',help='link static libraries')
	opt.add_option('--boost-mt',action='store_true',default=False,dest='boost_mt',help='select multi-threaded libraries')
	opt.add_option('--boost-abi',type='string',default='',dest='boost_abi',help='''select libraries with tags (dgsyp, d for debug),
				   see doc Boost, Getting Started, chapter 6.1''')
	opt.add_option('--boost-toolset',type='string',default='',dest='boost_toolset',help='force a toolset e.g. msvc, vc90, \
						gcc, mingw, mgw45 (default: auto)')
	py_version='%d%d'%(sys.version_info[0],sys.version_info[1])
	opt.add_option('--boost-python',type='string',default=py_version,dest='boost_python',help='select the lib python with this version \
						(default: %s)'%py_version)
def __boost_get_version_file(self,dir):
	try:
		return self.root.find_dir(dir).find_node(BOOST_VERSION_FILE)
	except:
		return None
def boost_get_version(self,dir):
	re_but=re.compile('^#define\\s+BOOST_LIB_VERSION\\s+"(.*)"$',re.M)
	try:
		val=re_but.search(self.__boost_get_version_file(dir).read()).group(1)
	except:
		val=self.check_cxx(fragment=BOOST_VERSION_CODE,includes=[dir],execute=True,define_ret=True)
	return val
def boost_get_includes(self,*k,**kw):
	includes=k and k[0]or kw.get('includes',None)
	if includes and self.__boost_get_version_file(includes):
		return includes
	for dir in BOOST_INCLUDES:
		if self.__boost_get_version_file(dir):
			return dir
	if includes:
		self.fatal('headers not found in %s'%includes)
	else:
		self.fatal('headers not found, use --boost-includes=/path/to/boost')
def boost_get_toolset(self,cc):
	toolset=cc
	if not cc:
		build_platform=Utils.unversioned_sys_platform()
		if build_platform in BOOST_TOOLSETS:
			cc=build_platform
		else:
			cc=self.env.CXX_NAME
	if cc in BOOST_TOOLSETS:
		toolset=BOOST_TOOLSETS[cc]
	return isinstance(toolset,str)and toolset or toolset(self.env)
def __boost_get_libs_path(self,*k,**kw):
	''' return the lib path and all the files in it '''
	if'files'in kw:
		return self.root.find_dir('.'),Utils.to_list(kw['files'])
	libs=k and k[0]or kw.get('libs',None)
	if libs:
		path=self.root.find_dir(libs)
		files=path.ant_glob('*boost_*')
	if not libs or not files:
		for dir in BOOST_LIBS:
			try:
				path=self.root.find_dir(dir)
				files=path.ant_glob('*boost_*')
				if files:
					break
				path=self.root.find_dir(dir+'64')
				files=path.ant_glob('*boost_*')
				if files:
					break
			except:
				path=None
	if not path:
		if libs:
			self.fatal('libs not found in %s'%libs)
		else:
			self.fatal('libs not found, \
					   use --boost-includes=/path/to/boost/lib')
	return path,files
def boost_get_libs(self,*k,**kw):
	'''
	return the lib path and the required libs
	according to the parameters
	'''
	path,files=self.__boost_get_libs_path(**kw)
	t=[]
	if kw.get('mt',False):
		t.append('mt')
	if kw.get('abi',None):
		t.append(kw['abi'])
	tags=t and'(-%s)+'%'-'.join(t)or''
	toolset='(-%s[0-9]{0,3})+'%self.boost_get_toolset(kw.get('toolset',''))
	version='(-%s)+'%self.env.BOOST_VERSION
	def find_lib(re_lib,files):
		for file in files:
			if re_lib.search(file.name):
				return file
		return None
	def format_lib_name(name):
		if name.startswith('lib'):
			name=name[3:]
		return name.split('.')[0]
	libs=[]
	for lib in Utils.to_list(k and k[0]or kw.get('lib',None)):
		py=(lib=='python')and'(-py%s)+'%kw['python']or''
		for pattern in['boost_%s%s%s%s%s'%(lib,toolset,tags,py,version),'boost_%s%s%s%s'%(lib,tags,py,version),'boost_%s%s%s'%(lib,tags,version),'boost_%s%s%s%s'%(lib,toolset,tags,py),'boost_%s%s%s'%(lib,tags,py),'boost_%s%s'%(lib,tags)]:
			file=find_lib(re.compile(pattern),files)
			if file:
				libs.append(format_lib_name(file.name))
				break
		else:
			self.fatal('lib %s not found in %s'%(lib,path))
	return path.abspath(),libs
def check_boost(self,*k,**kw):
	if not self.env['CXX']:
		self.fatal('load a c++ compiler first, conf.load("compiler_cxx")')
	params={'lib':k and k[0]or kw.get('lib',None)}
	for key,value in self.options.__dict__.items():
		if not key.startswith('boost_'):
			continue
		key=key[len('boost_'):]
		params[key]=value and value or kw.get(key,'')
	var=kw.get('uselib_store','BOOST')
	self.start_msg('Checking boost includes')
	self.env['INCLUDES_%s'%var]=self.boost_get_includes(**params)
	self.env.BOOST_VERSION=self.boost_get_version(self.env['INCLUDES_%s'%var])
	self.end_msg(self.env.BOOST_VERSION)
	if Logs.verbose:
		Logs.pprint('CYAN','	path : %s'%self.env['INCLUDES_%s'%var])
	if not params['lib']:
		return
	self.start_msg('Checking boost libs')
	suffix=params.get('static','ST')or''
	path,libs=self.boost_get_libs(**params)
	self.env['%sLIBPATH_%s'%(suffix,var)]=[path]
	self.env['%sLIB_%s'%(suffix,var)]=libs
	self.end_msg('ok')
	if Logs.verbose:
		Logs.pprint('CYAN','	path : %s'%path)
		Logs.pprint('CYAN','	libs : %s'%libs)

conf(__boost_get_version_file)
conf(boost_get_version)
conf(boost_get_includes)
conf(boost_get_toolset)
conf(__boost_get_libs_path)
conf(boost_get_libs)
conf(check_boost)