105 lines
2.7 KiB
Bash
Executable File
105 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# global
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source=$(dirname `realpath $0`)
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quality=90
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size=800
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borderWidth=10
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border=0
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sign=1
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# function
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prepare()
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{
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local img="$1"
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local size="$2"
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local border="$3"
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local sign="$4"
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local quality="$5"
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echo "Preparing ${img} for web"
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local path=`dirname "${img}"`
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local base=`basename "${img}"`
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local basepng=${base/.jpg/.png}
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local basejpg=${base/.png/.jpg}
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local realSize=${size}
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local convertOpt=""
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local composeOpt=""
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if [ ${border} -gt 0 ]
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then
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realSize=$((${size}-2*${border}))
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convertOpt="-bordercolor white -border ${border}"
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composeOpt="-geometry +${border}+${border}"
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fi
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# check the file
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# Build subdir
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mkdir -p "${path}/${size}"
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# check if there is an embedded profile
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profile=
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convert -define jpeg:size=64x64 "${img}" icc:/dev/null 2> /dev/null
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if [ $? -eq 0 ]
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then
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profile="-profile ${source}/RT_sRGB.icm +profile icc"
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fi
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# resize with the least quality loss as possible and remove profile data (assume sRGB)
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convert "${img}" -filter Lanczos -resize ${realSize}x${realSize} -unsharp 2x0.7+0.6+.03 ${convertOpt} ${profile} "${path}/${size}/${basepng}"
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# logo
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if [ ${sign} -ne 0 ]
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then
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convert "${path}/${size}/${basepng}" ${source}/signature.png -compose src-atop -gravity SouthEast ${composeOpt} -composite "${path}/${size}/${basepng}"
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fi
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# compress for web
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convert "${path}/${size}/${basepng}" -interlace Line -quality ${quality} "${path}/${size}/${basejpg}"
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rm -f "${path}/${size}/${basepng}"
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}
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while getopts "bhnq:s:" flag
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do
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case $flag in
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b)
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border=${borderWidth}
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if [ ${border} -gt 0 ]
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then
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echo "Border support enabled (${border}px)"
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fi
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;;
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h)
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echo "Usage: $0 [options] <fichier(s)>"
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echo "-b : enable ${borderWidth}px white border"
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echo "-n : disable signature"
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echo "-q <int> : set jpg quality (default : ${quality})"
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echo "-s <int> : change the output size (default : ${size})"
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exit
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;;
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n)
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sign=0
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if [ $sign -eq 0 ]
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then
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echo "Signature disabled"
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fi
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;;
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q)
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quality=${OPTARG}
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;;
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s)
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size=${OPTARG}
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;;
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esac
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done
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shift "$((OPTIND-1))"
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echo "Output size set to ${size}"
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echo "Output jpeg quality set to ${quality}"
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for img in "$@"
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do
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if [ -f "${img}" ]
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then
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prepare "${img}" $size $border $sign $quality
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else
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echo "warning : ${img} does not exists"
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fi
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done
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