#!/usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2005 (ita)

"Module called for configuring, compiling and installing targets"

import os, sys, shutil, traceback, datetime, inspect, errno

import Utils, Configure, Build, Logs, Options, Environment, Task
from Logs import error, warn, info
from Constants import *

g_gz = 'bz2'
commands = []

def prepare_impl(t, cwd, ver, wafdir):
	Options.tooldir = [t]
	Options.launch_dir = cwd

	# some command-line options can be processed immediately
	if '--version' in sys.argv:
		opt_obj = Options.Handler()
		opt_obj.curdir = cwd
		opt_obj.parse_args()
		sys.exit(0)

	# now find the wscript file
	msg1 = 'Waf: Please run waf from a directory containing a file named "%s" or run distclean' % WSCRIPT_FILE

	# in theory projects can be configured in an autotool-like manner:
	# mkdir build && cd build && ../waf configure && ../waf
	build_dir_override = None
	candidate = None

	lst = os.listdir(cwd)

	search_for_candidate = True
	if WSCRIPT_FILE in lst:
		candidate = cwd

	elif 'configure' in sys.argv and not WSCRIPT_BUILD_FILE in lst:
		# autotool-like configuration
		calldir = os.path.abspath(os.path.dirname(sys.argv[0]))
		if WSCRIPT_FILE in os.listdir(calldir):
			candidate = calldir
			search_for_candidate = False
		else:
			error('arg[0] directory does not contain a wscript file')
			sys.exit(1)
		build_dir_override = cwd

	# climb up to find a script if it is not found
	while search_for_candidate:
		if len(cwd)