icon_conv

#!/bin/bash
#
# Convert an icon file in SVG to 3 sizes of PNG icon files.
#
# Usage:
#   icon_conv [win|mac] <svg file path> <base name of outputted files>
#
# Example:
#   The following command converts sync.svg and creates sync.png, sync@2x.png, and sync@3x.png for Windows:
#     $ icon_conv win sync.svg sync
#
set -x
MAC_BASE_SIZE=18
WIN_BASE_SIZE=32
BASE_SIZE=$MAC_BASE_SIZE

if [[ $1 == "win" ]]; then
    BASE_SIZE=$WIN_BASE_SIZE
fi

for size in 1 2 3; do
    SUFFIX=""
    if [[ $size -ne 1 ]]; then
        SUFFIX=@${size}x
    fi

    rsvg-convert -h $((size * BASE_SIZE)) "$2" > $3${SUFFIX}.png
done