Get MacPorts checksums for macOS Finder Services menu (based on https://superuser.com/a/876122/414616)

Run AppleScript section

on run {input, parameters}
	with timeout of 360 seconds
		tell application "System Events"
			activate
			display dialog input buttons {"OK"} default button 1 with title "MacPorts checksums" giving up after 300 --seconds
		end tell
	end timeout
end run

Run Shell Script section

    for file; do
      if [[ -d "$file" ]]; then
        echo "$(basename "$file") is a directory"
      else
        cd "$(dirname "$file")"
        echo -e "$(basename "$file")\r"
        echo -e "checksums           rmd160  $(/usr/bin/openssl dgst -rmd160 "$(basename "$file")" | egrep -o [a-f0-9]{40}) \\"
        echo -e "                    sha256  $(/usr/bin/openssl dgst -sha256 "$(basename "$file")" | egrep -o [a-f0-9]{64}) \\"
        echo -e "                    size    $(stat -f %z "$file")"
      fi
    done | tr "\n" "\r"