gistfile1.txt

function yt {
        typeset vid file x
        if ! vid=$(xsel -o); then
                {
                        echo 'xsel failed'
                        typeset -p DISPLAY
                } >&2
                return 1
        elif ! file=$(youtube-dl --get-filename -- "$vid"); then
                echo 'Could not resolve file name from URL.' >&2
                return 1
        elif [[ -f $file ]]; then
                printf 'File already exists: %q\n' "$file" >&2
                return 1
        else
                {
                        inotifywait -e create . 2>&1 >&3 | {
                                while IFS= read -r x; do
                                        if [[ $x != 'Watches established.' ]]; then
                                                break
                                        fi
                                done
                                youtube-dl -f '[height <=? 720]' --no-part "$vid" <&4 >&2
                        }
                } 3>&1 | {
                        while IFS= read -r x && [[ $x != "./ CREATE ${file}" ]]
                        do :
                        done
                        smplayer "$file" <&4 >&2
                }
        fi 4<&0
}