#!/bin/bash
set -euo pipefail
egrep -oh 'https://[^"]+\.js' "$@" | sort -u | while read url; do
    hash=$(curl -fsS "$url" | openssl dgst -sha384 -binary | openssl base64 -A)
    sed -i "\|$url| c\\    <script src=\"$url\" integrity=\"sha384-$hash\" crossorigin=\"anonymous\"></script>" "$@"
done
egrep -oh 'https://[^"]+\.css' "$@" | sort -u | while read url; do
    hash=$(curl -fsS "$url" | openssl dgst -sha384 -binary | openssl base64 -A)
    sed -i "\|$url| c\\    <link rel=\"stylesheet\" href=\"$url\" integrity=\"sha384-$hash\" crossorigin=\"anonymous\">" "$@"
done