copy-tiles

#!/usr/bin/env bash

FROM_DIR=$1
TO_DIR=$2

cd $FROM_DIR;
for jpg in `find -name "*.jpg"`; do
	fromJpg=$FROM_DIR/${jpg:2}
	toJpg=$TO_DIR/${jpg:2}
	fromJs=${fromJpg%.*}.js.gz
	toJs=${toJpg%.*}.js.gz
	
	fromJpgSize=$(stat -c%s "$fromJpg")
	fromJsSize=$(stat -c%s "$fromJs")
	
	if [ -f $toJpg ]; then	
		toJpgSize=$(stat -c%s "$toJpg")
		toJsSize=$(stat -c%s "$toJs")
	
		if [ "$fromJpgSize" -le 1700 ]; then 
			echo "Skiping $jpg"
		elif [ "$toJpgSize" -le 1700 ]; then 
			echo "Overwriting $jpg"
			cp -f $fromJpg $toJpg
			cp -f $fromJs $toJs
		else			
			
			convert "$fromJpg" -fuzz 6% -transparent  "#f5f5f5" "$fromJpg.png"
			convert "$toJpg" -fuzz 6% -transparent "#f5f5f5" "$toJpg.png"
			if [ "$fromJpgSize" -ge "$toJpgSize" ]; then 
				echo "Compositing $jpg to => from"
				composite "$fromJpg.png" "$toJpg.png" "$toJpg.composite.png"
				convert "$toJpg" -fuzz 25% +transparent "#000000" "$toJpg.black.png"
				composite "$toJpg.black.png" "$toJpg.composite.png" "$toJpg.composite.png"
				unlink "$toJpg.black.png"
				cp -f $fromJs $toJs
			else
				echo "Compositing $jpg from => to"
				composite "$toJpg.png" "$fromJpg.png" "$toJpg.composite.png"
				convert "$fromJpg" -fuzz 25% +transparent "#000000" "$fromJpg.black.png"
				composite "$fromJpg.black.png" "$toJpg.composite.png" "$toJpg.composite.png"
				unlink "$fromJpg.black.png"
			fi
			unlink "$toJpg"
			convert "$toJpg.composite.png" -background '#f5f5f5' -flatten "$toJpg"		
			unlink "$toJpg.composite.png"
			unlink "$toJpg.png"
			unlink "$fromJpg.png"
		fi
	else
		echo "Copying $jpg"
		mkdir -p `dirname $toJpg`		
		cp $fromJpg $toJpg
		cp $fromJs $toJs
	fi;	
	
		
	
done;