corvée: optimise les images, nettoie les miniatures, màj le script de conversion

web/app/uploads/script.fish

@@ -0,0 +1,86 @@
+ #!/usr/bin/fish
+
+if type --query gm
+else
+  echo -e "GraphicsMagick is missing."
+  exit 1
+end
+if type --query cjxl
+else
+  echo -e "A JPEGXL encoder (cjxl) is missing."
+  exit 1
+end
+if type --query avifenc
+else
+  echo -e "An AVIF encoder (avifenc) is missing."
+  exit 1
+end
+
+ for jpg in **/*.{jpg,jpeg}
+     echo $jpg
+
+     set -f avif (path change-extension 'avif' "$jpg")
+     set -f jxl (path change-extension 'jxl' "$jpg")
+     set -f png (path change-extension 'png' "$jpg")
+
+    set -f dimensions (gm identify -format "%w-%h" $jpg)
+     set -f dimensions (string split "-" $dimensions)
+
+     if test $dimensions[1] -eq 1920 || test $dimensions[2] -eq 1920
+         set -f a_bonnes_dimensions true
+     else
+         set -f a_bonnes_dimensions false
+     end
+
+     if test -e $avif && test -e $jxl
+         echo -e "\tAll there."
+         continue
+     end
+
+    gm convert "$jpg" -resize 1920x1920\> "$png" >/dev/null
+
+     if ! test -e $jxl
+      # Si les dimensions ne sont pas bonnes, convertis l'image PNG en JPEGXL puis reconstruis une image JPEG.
+      # C'est une forme de redimensionnement lossless.
+      if test $a_bonnes_dimensions = false
+             cjxl \
+                 --allow_jpeg_reconstruction=1 \
+                 --brotli_effort=11 \
+                 --container=1 \
+                 --effort=9 \
+                 --lossless_jpeg=1 \
+                 --num_threads=-1 \
+                 --progressive \
+                 $png $jxl &>/dev/null
+
+             djxl \
+                 --num_threads=-1 \
+                 $jxl $jpg &>/dev/null
+         end
+
+         cjxl \
+             --allow_jpeg_reconstruction=0 \
+             --brotli_effort=11 \
+             --container=1 \
+             --effort=10 \
+             --quality=70 \
+             --lossless_jpeg=0 \
+             --num_threads=-1 \
+             --progressive \
+             $png $jxl &>/dev/null
+         echo -e "\t$jxl"
+
+         set -f avif (path change-extension 'avif' "$jpg")
+         if ! test -e $avif
+             avifenc \
+                 -q 70 \
+                 -s 0 \
+                 -c aom \
+                 -y 420 \
+                 "$png" "$avif" &>/dev/null
+             echo -e "\t$avif"
+         end
+
+         rm $png
+     end
+ end