#!/bin/bash

if test -z "$BASH"; then

	cmd="$0"

	if test "`basename $0`" = "$0"; then

		cmd="./$0"

	fi

	echo "This script is designed to be run using GNU bash."

	echo "Try: chmod +x $0 && $cmd"

	exit 1

fi

my_which_real()

{

	test -n "$1" || return 1

	local i

	local part

	for (( i=1; ; i++ )); do

		part=`echo "$PATH" | cut -d ':' -f $i`

		test -n "$part" || return 1

		if test -x "$part/$1"; then echo "$part/$1"; return 0; fi

	done

}

my_which()

{

	local out

	local r

	out=`my_which_real "$1"`

	r=$?

	if test -z "$out" -o $r = 1 ; then echo "ERROR: $1 command not found on system" 1>&2;exit 1;fi

	echo $out

	return $r

}

progressbit()

{

	local i

	local pbar

	local line

	i=0

  pbar="-\\|/"

  while read line; do

    ((i++))

    j=$(($i % ${#pbar}))

    echo -ne "\r${pbar:$j:1} Extracting..."

  done

}

mktempdir()

{

	local tempdir

	tempdir=/tmp/ext`$dd if=/dev/urandom bs=128 count=1 2>/dev/null | $md5sum - | cut -c 1-6`

	echo $tempdir

	return 0

}

getdata()

{

	offset=`$cat $0 | $grep -an '^##DATA' | cut -d ':' -f 1 || exit 1`

	offset=$((offset + 1))

	$cat $0 | $tail -n+$offset

}

for cmd in bzip2 tar grep tail cat wc dd md5sum; do

	my_which $cmd>/dev/null || exit 1

	eval $cmd=`my_which $cmd`

	if test x$? = x1; then

		exit 1

	fi

done

tempdir=""

extractonly=0

while test -n "$1"; do

	case "$1" in

	-x)

		extractonly=1

		if test -n "$2"; then

      tempdir=$2

    else

      tempdir=`echo $0 | sed -re 's/\.[a-z0-9_-]{1,5}$//'`

    fi

		;;

	esac

	shift

done

test -n "$tempdir" || tempdir=`mktempdir`

if test -d "$tempdir"; then

if test $extractonly = 1; then

	i=0

  basetemp="$tempdir"

  while test -d "$tempdir"; do

    tempdir="${basetemp}${i}"

    ((i++))

  done

else

	while test -d "$tempdir"; do

    tempdir=`mktempdir`

  done

fi

fi

mkdir "$tempdir" || exit 1

echo -ne "\e[?25l- Extracting..."

getdata | $bzip2 -dc | $tar xvCf $tempdir - | progressbit \

  || (

      rm -rf $tempdir

      echo -ne "\e[?25h"

      exit 1

     )

echo -ne "\r\e[?25h"

# trap exits so we can clean up if the script is interrupted

handle_interrupt()

{

  rm -rf $tempdir

}

trap handle_interrupt 0

if test -x $tempdir/autorun.sh && test $extractonly != 1; then

	$tempdir/autorun.sh

	ret=$?

	rm -rf $tempdir

	exit $ret

else

	echo "Contents extracted to $tempdir."

fi

trap "exit 0;" 0

exit 0

##DATA