ignore prompt if it is empty in addition to NULL

[dmenu.git] / dmenu_run

diff --git a/dmenu_run b/dmenu_run
index 1cecc1622a9b3b8ad5e64c703f495ebe1bb04f91..052e51b3864a510c44d2b73b8405c7064938fb21 100755 (executable)
--- a/dmenu_run
+++ b/dmenu_run
@@ -1,2 +1,15 @@
 #!/bin/sh
-exe=`dmenu_path | dmenu $*` && exec $exe
+cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
+if [ -d "$cachedir" ]; then
+       cache=$cachedir/dmenu_run
+else
+       cache=$HOME/.dmenu_cache # if no xdg dir, fall back to dotfile in ~
+fi
+(
+       IFS=:
+       if stest -dqr -n "$cache" $PATH; then
+               stest -flx $PATH | sort -u | tee "$cache" | dmenu "$@"
+       else
+               dmenu "$@" < "$cache"
+       fi
+) | ${SHELL:-"/bin/sh"} &