#!/bin/bash
#$1=update to version
file=contao-$1
tar_file=$file.tar.gz
contao_src=/var/www/contao/
date=`date +%F`
 
cd $contao_src
#Backup all data
tar -czf /var/tmp/contao_full_$date.tar.gz *
tar -czf /var/tmp/contao_user_data_$date.tar.gz system/config/dcaconfig.php system/config/localconfig.php system/config/langconfig.php templates/* tl_files/*
 
cd /tmp
#Get the new file version
wget  http://prdownloads.sourceforge.net/typolight/$tar_file?download
if [ $? -ne 0 ]; then
	echo "Unable to download $tar_file. Aborting...";
	exit;
fi
 
#Extract archive and remove the original tar file
tar -xzf $tar_file
rm $tar_file
 
 
cd $file
#Get the new file list
list=`find . -path "./tl_files" -prune -o -path "./templates" -prune -o -print -type f`
 
for a in $list; do
 
   #Skipp some files
   if [ "$a" = "." -o "$a" = "./system/config/dcaconfig.php" -o "$a" = "./system/config/localconfig.php" -o "$a" = "./system/config/langconfig.php" ]; then
	   echo "$contao_src$a SKIPED!"
	   continue
   fi
 
   #Remove the "./" at the beginning
   a=${a:2}
 
   #Processing Directories
   if [ -d "$a" ]; then
	   if [ ! -d "$contao_src$a" ]; then
		   echo "$contao_src$a folder does not exist yet!"
		   cp -r --parents $a $contao_src
		   #echo "cp -r --parents $a $contao_src"
    	 	 continue
	   fi
	   echo "$contao_src$a folder exist. Skip..."
	   continue;
   fi
 
   #Processing Files
   if [ -f "$a" ]; then
	   if [ ! -f "$contao_src$a" ]; then
		   echo "$contao_src$a file does not exist yet!"
		   cp --parents $a $contao_src
		   #echo "cp --parents $a $contao_src"
    	 	 continue
	   fi
   fi
 
   # Diff the files - ignore the output...
   diff -q --exclude=.svn --exclude=dcaconfig.php --exclude=localconfig.php --exclude=langconfig.php \
              --exclude=templates --exclude=tl_files $a $contao_src$a > /dev/null 2>&1
 
   # ...but get the status
  status=$?
 
  case $status in
	0) # Files are identical - don't copy the file
	 	 #echo "$a unchanged"
	;;
	1) # Files differ - copy new file
		 echo "$a changed"
		 cp --parents $a $contao_src
	   	 #echo "cp --parents $a $contao_src"
	;;
	2) # Old file doesn't exist - copy new file
	   	 echo "old $a does not exist"
	   	 cp --parents $a $contao_src
     	   	 #echo "cp --parents $a $contao_src"
	;;
	*)
		echo "So, what to do with $a?"
	;;
  esac
done
 
echo "Updated to verstion $1"
echo "Please update your database by opening the contao install tool web page and scroll down to the database section and confirm the changes. "
 
exit;