Search through Eclipse jar files and images and resize them for HiDPI / Retina displays

scale_eclipse.sh

#!/bin/bash

# Original written by Redsandro in http://stackoverflow.com/a/29032397/168874

for J in *.jar
do
    d="`mktemp --directory`"
    trap 'rm -rf "$d"' EXIT
    f="`readlink -f \"$J\"`"

    echo "Extracting $J..."
    unzip -q "$f" -d "$d"

    echo "Processing images in $J..."
    find "$d" -name "*.gif" -exec sh -c "expr \$(identify -format \"%h\" {}) \<= 16 > /dev/null" \; -exec convert {} -resize 200% {} \; -printf "%f resized\n"

    echo "Compressing $J..."
    mv -f "$f" "$f.`date +%Y%m%d%H%M%S`.bak"
    pushd "$d" >/dev/null
    zip -qr "$f" .
    popd >/dev/null

    rm -rf "$d"
done

echo "Processing all images outside of jars..."
find -name "*.gif" -exec sh -c "expr \$(identify -format \"%h\" {}) \<= 16 > /dev/null" \; -exec convert {} -resize 200% {} \; -printf "%f resized\n"