84 lines
2.8 KiB
Bash
84 lines
2.8 KiB
Bash
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#!/bin/bash
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if [ "$#" -ne 2 ]
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then
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maxwidth=800
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else
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maxwidth=$2
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fi
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check_replace(){
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# Si le thumbnail généré est plus gros que l'original (ça arrive régulièrement surtout avec les png) on garde l'original et on le copie comme si c'était le thumbnail.
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size_orig=$(stat -c %s $1)
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size_thumb=$(stat -c %s $2)
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if [ "$size_orig" -lt "$size_thumb" ]; then
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rm "$2"
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cp "$1" "$2"
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fi
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}
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thumbnail(){
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echo -en "Processing image \e[0;34m$2\e[0m :"
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extension="$(echo $2 | awk -F\. '{print $NF}')"
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thumbname="$(dirname $2)/$(basename -s .$extension $2).thumb.$extension"
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thumbwebpname="$(dirname $2)/$(basename -s .$extension $2).thumb.webp"
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thumbavifname="$(dirname $2)/$(basename -s .$extension $2).thumb.avif"
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maxwidth=$1
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jpegq=75
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webpq=55
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cavifq=35
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# Si une image est un thumbnail on la considère comme déjà bien traitée.
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if [[ $2 == *".thumb."* ]]; then
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echo -e " \e[0;31mest un thumb !\e[0m"
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return 0
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fi
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# Si une image a déjà un thumbnail, on la considère comme déjà traitée et donc on y retouche pas.
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if [ -f "$(dirname $2)/$(basename -s .$extension $2).thumb.$extension" ]; then
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echo -e " \e[0;31ma déjà un thumb !\e[0m"
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return 0
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fi
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case "$extension" in
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jpg | jpeg | JPG | JPEG )
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/usr/bin/convert -resize $maxwidth\> -quality 100 "$2" "$thumbname.LOSSLESS"
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/usr/bin/convert -quality $jpegq "$thumbname.LOSSLESS" "$thumbname"
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/usr/bin/convert -quality $webpq "$thumbname.LOSSLESS" "$thumbwebpname"
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/usr/bin/cavif --quiet --quality $cavifq "$thumbname.LOSSLESS" --output "$thumbavifname"
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rm "$thumbname.LOSSLESS"
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jpegoptim --quiet --strip-all "$2"
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check_replace "$2" "$thumbname"
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;;
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png | PNG)
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# Ce con de pngcrush a tendance à faire n'importe quoi si on lui dit de réécrire par dessus les images, du coup on passe par un fichier temporaire qu'on renomme par la suite.
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pngcrush -warn "$2" "$2.tmp"
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mv -f "$2.tmp" "$2"
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usr/bin/convert -resize $maxwidth\> "$2" "$thumbname"
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/usr/bin/convert -resize $maxwidth\> -quality $webpq "$2" "$thumbwebpname"
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pngcrush -warn "$thumbname" "$thumbname.tmp"
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mv -f "$thumbname.tmp" "$thumbname"
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check_replace "$2" "$thumbname"
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/usr/bin/convert -resize $maxwidth\> -quality 100 "$2" "$thumbname.LOSSLESS"
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/usr/bin/cavif --quiet --quality $cavifq "$thumbname.LOSSLESS" --output "$thumbavifname"
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rm "$thumbname.LOSSLESS"
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;;
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esac
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sizeorig=$(stat -c %s $2 | numfmt --to=iec --padding=3)
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sizethumb=$(stat -c %s $thumbname | numfmt --to=iec --padding=3)
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sizewebp=$(stat -c %s $thumbwebpname | numfmt --to=iec --padding=3)
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sizeavif=$(stat -c %s $thumbavifname | numfmt --to=iec --padding=3)
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echo -e "\e[0;32mOK\e[0;m : orig : $sizeorig > $sizethumb ; webp:$sizewebp ; avif:$sizeavif"
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}
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export -f thumbnail
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export -f check_replace
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find $1 -name '*.jpg' -or -name '*.jpeg' -or -name '*.JPG' -or -name '*.JPEG' -or -name '*.png' -or -name '*.PNG' | parallel --jobs 16 thumbnail $maxwidth
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