A macOS folder action that converts files to webp format

cweb_folder_action.sh

#!/usr/bin/env bash -x

export PATH="${PATH}:/opt/homebrew/bin"

for f in "$@"; do
  ABSOLUTE_F=$(readlink -f "$f")
  # Check if the file is an image
  MIME_TYPE=$(file --mime-type -b "$ABSOLUTE_F")

  EXT="${ABSOLUTE_F##*.}"
  BASENAME="${ABSOLUTE_F##*/}"

  # Define the WebP file path, relative to the source file's directory
  WEBP_DIR=$(dirname "$ABSOLUTE_F")
  WEBP_PATH="$WEBP_DIR/${BASENAME%.*}.webp"

  if [[ "$MIME_TYPE" == "image/heic" ]]; then
    convert "$ABSOLUTE_F" "$WEBP_PATH"
  fi

  if [[ "$MIME_TYPE" == "image/tiff" || "$MIME_TYPE" == "image/png" || "$MIME_TYPE" == "image/jpeg" ]]; then
    if [ ! -f "$WEBP_PATH" ]; then
      echo "Converting $f to WebP format..."
      cwebp "$f" -o "$WEBP_PATH"
    fi
  fi
done