#!/usr/bin/env sh
set -eu #o pipefail

cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
if [ -d "$cachedir" ]; then
    cache=$cachedir/run_list
else
    cache=$HOME/.run_list
fi

#if [ ! -f "$cache" ] || [ $(find "$cache" -mmin +180) = "$cache" ]; then
IFS=':'
if [ ! -f "$cache" ] || [ $(find $PATH -prune -cnewer "$cache" 2>/dev/null |\
    head -c1 | wc -c) -eq 1 ]; then

    find -L $PATH -maxdepth 1 -type f -executable -printf "%f\n" 2>/dev/null |\
        sort -u | tee "$cache"
else
    cat "$cache"
fi