dmenu file opener

open.sh

#!/bin/sh
set -ef

cachedir=${XDG_CACHE_HOME:-$HOME/.cache}
cache=$cachedir/files.txt

getpaths() {
	[ ! -e "$cachedir" ] && mkdir -p "$cachedir"
	if [ -e "$cache" ]; then
		cat "$cache"
	else
		eval "find . \( ${FIND_PRUNE:--path '*.git/*'} \) -prune -o -print" | sort | tee "$cache"
	fi
}

cd ~
file=$({ echo '!refresh'; getpaths; } | dmenu -i -l 32 "$@")
case $file in
'!refresh')
	cd "$OLDPWD"
	rm -f "$cache"
	exec "$0" "$@" ;;
*) ;;
esac

cmd=$(dmenu_path | dmenu -p "open $(basename -- "$file") with" "$@")
if [ ! -t 1 ] && echo "$cmd" | grep -qFx mpv; then
	exec mpv --force-window --keep-open -- "$file"
else
	exec $cmd -- "$file"
fi