Creates ICOs from the Faenza icon package

createICOs.sh

#!/bin/bash

# [!! WARNING]
# This script will remove some icons from the original set.
# It's probably best if you make a copy of the original

# USAGE:
# Run this script from the within the Faenza icon directory that contains
# each different category of icon (apps, categories, places, etc...)

# Depends on the ImageMagick convert tool

convert_icons()
{
	mkdir -p 128
	mkdir -p 256

	find 96/ -name "*.png" -type f -print0 | while read -d $'\0' icon
	do
		name="$(basename ${icon} .png)"

		# 128x128
		convert -background none -density 96 "scalable/${name}.svg" "128/${name}.png"

		# 256x256
		convert -background none -density 192 "scalable/${name}.svg" "256/${name}.png"
	done

	mkdir -p ico
	list="$(find {16,22,24,32,48,64,96,128,256}/*.png -type f -exec basename {} \; | sort | uniq)"

	for icon in ${list}
	do
		# Error messages are redirected to null since it's possible that the
		# icon doesn't exist in all of the size directories
		convert -quiet "./16/${icon}" "./22/${icon}" "./24/${icon}" "./32/${icon}" "./48/${icon}" "./64/${icon}" "./96/${icon}" "./128/${icon}" "./256/${icon}" "./ico/${icon%.*}.ico" 2> /dev/null
	done
}

# Remove duplicate icons
echo "Removing duplicate icons (symlinks)"
find . -type l -exec rm {} \;
echo

# Convert icon sets
for folder in actions apps categories devices emblems mimetypes places status stock
do
	cd ${folder}
	echo -e " \e[00;32m=>\e[00m Converting ${folder} to .ico files"
	convert_icons;
	cd ..
done