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convertToIcns
executable file
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convertToIcns
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#!/bin/sh
### USAGE
# ./convertToIcns <input png> <outp icns>
# Example
# ./convertToIcns ~/sample.png ~/Desktop/converted.icns
# exit the shell script on error immediately
set -e
# import script as variable
CONVERT_TO_PNG="${BASH_SOURCE%/*}/convertToPng"
type convert >/dev/null 2>&1 || { echo >&2 "Cannot find required ImageMagick Convert executable"; exit 1; }
type iconutil >/dev/null 2>&1 || { echo >&2 "Cannot find required iconutil executable"; exit 1; }
# Parameters
SOURCE=$1
DEST=$2
# Check source and destination arguments
if [ -z "${SOURCE}" ]; then
echo "No source image specified"
exit 1
fi
if [ -z "${DEST}" ]; then
echo "No destination specified"
exit 1
fi
# File Infrastructure
NAME=$(basename "${SOURCE}")
EXT="${NAME##*.}"
BASE="${NAME%.*}"
TEMP_DIR="temp_icon"
ICONSET="${BASE}.iconset"
function cleanUp() {
rm -rf "${TEMP_DIR}"
rm -rf "${ICONSET}"
}
trap cleanUp EXIT
mkdir -p "${TEMP_DIR}"
mkdir -p "${ICONSET}"
PNG_PATH="${TEMP_DIR}/icon.png"
${CONVERT_TO_PNG} "${SOURCE}" "${PNG_PATH}"
# Resample image into iconset
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 16x16 "${ICONSET}/icon_16x16.png"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 32x32 "${ICONSET}/[email protected]"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 32x32 "${ICONSET}/icon_32x32.png"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 64x64 "${ICONSET}/[email protected]"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 128x128 "${ICONSET}/icon_128x128.png"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 256x256 "${ICONSET}/[email protected]"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 256x256 "${ICONSET}/icon_256x256.png"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 512x512 "${ICONSET}/[email protected]"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 512x512 "${ICONSET}/icon_512x512.png"
convert "${PNG_PATH}" -define png:big-depth=16 -define png:color-type=6 -sample 1024x1024 "${ICONSET}/[email protected]"
# Create an icns file lefrom the iconset
iconutil -c icns "${ICONSET}" -o "${DEST}"
trap - EXIT
cleanUp