This script recursively converts all images in the current/nested directory to WebP format with a specified quality level using the cwebp tool

cwebpx.sh

#!/bin/zsh
# you can install cwebp in mac with `brew install webp`

# Default quality value
quality=80

# Parse command-line options
while getopts "q:" opt; do
  case $opt in
    q) quality=$OPTARG ;;
    *) echo "Usage: $0 [-q quality]"; exit 1 ;;
  esac
done

# Define the image types to search for
image_types=("*.jpeg" "*.jpg" "*.tiff" "*.tif" "*.png")

# Iterate over each image type
for type in "${image_types[@]}"; do
  # Find files of the specified image type
  find . -type f -iname "$type" | while read -r IMAGE; do
    # Get the filename without extension
    filename_without_extension=${IMAGE%.*}
   
    # Convert the image to WebP format
    cwebp "$IMAGE" -o "${filename_without_extension}.webp" -q $quality

    echo "Converted $IMAGE to ${filename_without_extension}.webp with quality $quality"

    # rm -rf "$IMAGE";
  done
done

echo "Conversion complete."