mirror of
https://github.com/jiahaog/Nativefier
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72 lines
1.4 KiB
Bash
Executable File
72 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# USAGE
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# ./extractIco <input ico> <outp ico>
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# Make sure the output extension is '.ico'!
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# Example
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# ./extractIco.sh ~/SOME_MULTIPLE_ICO.png ~/Desktop/SINGLE.ico
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# Exec Paths
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IMAGEMAGICK_CONVERT=$(which convert)
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IMAGEMAGICK_IDENTIFY=$(which identify)
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if [ ! -x "${IMAGEMAGICK_CONVERT}" ]; then
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echo "Cannot find required ImageMagick Convert executable" >&2
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exit 1;
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fi
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if [ ! -x "${IMAGEMAGICK_IDENTIFY}" ]; then
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echo "Cannot find required ImageMagick Identify executable" >&2
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exit 1;
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fi
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# Parameters
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SOURCE=$1
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DEST=$2
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# Check source and destination arguments
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if [ -z "${SOURCE}" ]; then
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echo "No source image specified" >&2
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exit 1
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fi
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if [ -z "${DEST}" ]; then
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echo "No destination specified" >&2
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exit 1
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fi
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# check if source exists
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if [ ! -f "${SOURCE}" ]; then
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echo "Source file not found" >&2
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exit 1
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fi
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# File Infrastructure
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NAME=$(basename "${SOURCE}")
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EXT="${NAME##*.}"
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BASE="${NAME%.*}"
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TEMP_DIR="${BASE}.iconset"
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if [ "${EXT}" != "ico" ]; then
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echo "Source file is not a .ico" >&2
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exit 1
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fi
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# check if .ico is a sequence
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IS_ICO_SET="$(identify ${SOURCE} | grep -e "\w\.ico\[0")"
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if [ "${IS_ICO_SET}" ]; then
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mkdir "${TEMP_DIR}"
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# extract the largest(?) image from the set
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convert "${SOURCE}" "${TEMP_DIR}/${BASE}.png"
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convert "${TEMP_DIR}/${BASE}-0.png" "${DEST}"
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# Clean up the temp dir
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rm -rf "${TEMP_DIR}"
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else
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cp "${SOURCE}" "${DEST}"
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fi
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