generateFaviconFromSVG.sh

generateFaviconFromSVG.sh

#!/bin/bash
# Sources:
# https://github.com/audreyr/favicon-cheat-sheet
# https://graphicdesign.stackexchange.com/questions/77359/how-to-convert-a-square-svg-to-all-size-ico

set -ex

svg=$1

size=(16 24 32 48 64 76 96 128 144 152 196)

echo "=== Making a Favicon by using PNGs generated from the the svg ${svg} === "
echo ""
echo "Generating PNGs..."

for i in ${size[@]}; do
  inkscape $svg --export-png="favicon-${i}x${i}.png" -w$i -h$i --without-gui
done

echo "Compressing..."
## Replace with your favorite (e.g. pngquant)
optipng -o7 favicon-*.png
# pngquant -f --ext .png favicon-*.png --posterize 4 --speed 1

echo "Converting to favicon.ico..."
convert $(ls -v favicon-*.png) favicon.ico

## Clean-up maybe?
# rm favicon-*.png