diff -r 000000000000 -r 8e044e762a6c self-extract.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/self-extract.sh	Tue Jun 23 09:18:34 2009 -0400
@@ -0,0 +1,137 @@
+#!/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