quick and dirty icon set creation

iconset.sh

i use `sips` for quick-and-dirty iconset creation with Xcode (new high-resolution icons from a PNG):

#!/bin/bash

i=0

sizes=(512 256 128 64 32 16)

iconset="${1%.*}".iconset

mkdir -p $iconset

cp $1 $iconset/icon_${sizes[$i]}x${sizes[$i]}@2x.png

while [ $i -lt ${#sizes[@]} ]; do

base=icon_${sizes[$i]}x${sizes[$i]}

cp $iconset/$base@2x.png $iconset/$base.png

sips —resampleHeightWidth ${sizes[$i]} ${sizes[$i]} $iconset/$base.png &>/dev/null

cp $iconset/$base.png $iconset/icon_${sizes[$i+1]}x${sizes[$i+1]}@2x.png

: $[ i++ ]

done

rm $iconset/icon_{x,6}*

iconutil -c icns $iconset

rm -rf $iconset