[Fix] Added missing autosizer.sh script

autosizer.sh

@@ -0,0 +1,53 @@
+#!/bin/bash -e
+# Automatic Image file resizer
+# Written by SirLagz
+# http://sirlagz.net/2013/03/10/script-automatic-rpi-image-downsizer/
+strImgFile=$1
+extraSpaceMB=$2
+
+if [[ ! $(whoami) =~ "root" ]]; then
+echo ""
+echo "**********************************"
+echo "*** This should be run as root ***"
+echo "**********************************"
+echo ""
+exit
+fi
+
+if [[ -z $1 ]]; then
+echo "Usage: ./autosizer.sh <Image File>"
+exit
+fi
+
+if [[ -z $2 ]]; then
+extraSpaceMB=4
+fi
+
+if [[ ! -e $1 || ! $(file $1) =~ "boot sector" ]]; then
+echo "Error : Not an image file, or file doesn't exist"
+exit
+fi
+
+partinfo=`parted -s -m $1 unit B print`
+partnumber=`echo "$partinfo" | grep ext4 | awk -F: ' { print $1 } '`
+partstart=`echo "$partinfo" | grep ext4 | awk -F: ' { print substr($2,0,length($2)-1) } '`
+loopback=`losetup -f --show -o $partstart $1`
+e2fsck -f $loopback
+minsize=`resize2fs -P $loopback | awk -F': ' ' { print $2 } '`
+
+blocksize=$(dumpe2fs -h $loopback | grep 'Block size' | awk -F': ' ' { print $2 }')
+blocksize=${blocksize// /}
+
+let minsize=$minsize+$extraSpaceMB*1048576/$blocksize
+resize2fs -p $loopback $minsize
+
+sleep 1
+losetup -d $loopback
+
+let partnewsize=$minsize*$blocksize
+let newpartend=$partstart+$partnewsize
+
+part1=`parted -s $1 rm 2`
+part2=`parted -s $1 unit B mkpart primary $partstart $newpartend`
+endresult=`parted -s -m $1 unit B print free | tail -1 | awk -F: ' { print substr($2,0,length($2)-1) } '`
+truncate -s $endresult $1