get_youtube_videos/fix_dir_dates.sh

#!/bin/bash
while read -r dir
do
    if [ -n "${dir}" ]; then
        echo "Checking dir '${dir}'..."
        last_file="${dir}/$(ls -ht -- "${dir}/" | grep \.webm\.download_info\.json | head -n1)"
        if [ "${last_file}" == "${dir}/" ]; then
            last_file="${dir}/$(ls -ht -- "${dir}/" | head -n1)"
        fi
        if [ "${last_file}" == "${dir}/" ]; then
            echo "Skipping, no file found in dir"
        else
            echo "Last modified file is '${last_file}'"
            filetime="$(jq '.info_dict.filetime' -- "${last_file}" )"
            if [ "${filetime}" != "null" ] && [ -n "${filetime}" ]; then
                last_file_time_formated=$(date -d "@${filetime}" +%Y%m%d%H%M.%S)
                echo "Setting times for '${dir}' to '${last_file_time_formated}'..."
                touch -t "${last_file_time_formated}" -- "${dir}"
            else
                echo "Setting times for '${dir}' to same as '${last_file}'..."
                touch -r "${last_file}" -- "${dir}"
            fi
        fi
    fi
done <<< "$(find . -mindepth 1 -maxdepth 1 -type d)"