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24 lines
545 B
24 lines
545 B
#!/bin/bash
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# Converts an image in a multi-resolution favicon
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# Requires Imagemagick
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# @link https://gist.github.com/lavoiesl/4113857
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if [[ "$#" != "2" ]]; then
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echo "Usage: $0 input.png output.ico" >&2
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exit 1
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fi
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input="$1"
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output="$2"
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sizes="16 32 64 128 256"
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tmp_dir=$(mktemp -d /tmp/favicon.XXXXXXXXXX)
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files=""
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for size in $sizes; do
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file="$tmp_dir/$size.png"
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convert "$input" -depth 8 -background transparent -flatten -resize "${size}x${size}" "$file"
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files="$files $file"
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done
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convert $files $output
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rm -R $tmp_dir
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