img-optimize/optimize.sh
2018-08-09 21:45:12 +02:00

80 lines
2.1 KiB
Bash

#!/bin/bash
CSI='\033['
CEND="${CSI}0m"
CGREEN="${CSI}1;32m"
##################################
# Welcome
##################################
echo ""
echo "Welcome to optimize.sh image optimization script."
echo ""
echo ""
echo "Do you want to optimize all jpg images in $1 ? (y/n)"
while [[ $jpg != "y" && $jpg != "n" ]]; do
read -p "Select an option [y/n]: " jpg
done
echo ""
echo "Do you want to optimize all png images in $1 (it may take a while) ? (y/n)"
while [[ $png != "y" && $png != "n" ]]; do
read -p "Select an option [y/n]: " png
done
echo ""
echo "Do you want to convert all jpg & png images to WebP in $1 ? (y/n)"
while [[ $webp != "y" && $webp != "n" ]]; do
read -p "Select an option [y/n]: " webp
done
# optimize jpg
jpg_optimize() {
find "$1" -type f \( -iname "*.jpg" -o -iname "*.jpeg" \) -print0 | xargs -0 jpegoptim --preserve --quiet --strip-all -m82
echo -ne " jpg optimization [${CGREEN}OK${CEND}]\\r"
echo -ne '\n'
}
# optimize png
png_optimize() {
find "$1" -type f -iname '*.png' -print0 | xargs -0 optipng -o7 -strip all -quiet
echo -ne " png optimization [${CGREEN}OK${CEND}]\\r"
echo -ne '\n'
}
# convert png to webp
webp_convert_images() {
find "$1" -type f -iname "*.png" -print0 | xargs -0 -I {} \
bash -c 'webp_version="$0".webp
if [ ! -f "$webp_version" ]; then
{ cwebp -quiet -z 9 -mt {} -o {}.webp; }
fi'
echo -ne " png to webp conversion [${CGREEN}OK${CEND}]\\r"
echo -ne '\n'
# convert jpg to webp
find "$1" -type f \( -iname "*.jpg" -o -iname "*.jpeg" \) -print0 | xargs -0 -I {} \
bash -c 'webp_version="$0".webp
if [ ! -f "$webp_version" ]; then
{ cwebp -quiet -q 82 -mt {} -o {}.webp; }
fi'
echo -ne " jpg to webp conversion [${CGREEN}OK${CEND}]\\r"
echo -ne '\n'
}
if [ "$jpg" = "y" ]; then
jpg_optimize "$@"
fi
if [ "$png" = "y" ]; then
png_optimize "$@"
fi
if [ "$webp" = "y" ]; then
webp_convert_images "$@"
fi
# We're done !
echo ""
echo -e " ${CGREEN}Image optimization performed successfully !${CEND}"
echo ""