dmenu_apps

#!/bin/bash
DESKTOP_PATHS="/usr/share/applications/*.desktop /usr/local/share/applications/*.desktop"

function exit_on_empty() {
  if [ "x$1" == "x" ]; then
    exit 1
  fi
}

while [ 1 ]; do
  category=`find /usr/share/applications/ $DESKTOP_PATHS -iname *.desktop | xargs grep 'Categories=' | cut -d '=' -f2 | tr ';' '\n' | cut -d ';' -f2 | sort | uniq | grep -v '^$' | dmenu $@ -i`
  if [ "x$category" == "x" ]; then
    exit 1 #Exit menu
  fi

  while [ 1 ]; do
    name=`grep -H -R '^Name[=]\|^Categories[=]' $DESKTOP_PATHS | grep $category | cut -d ':' -f1 | xargs grep -m 1 '^Name=' | cut -d '=' -f2 | sort | uniq | grep -v '^$' | dmenu $@ -i`
    if [ "x$name" == "x" ]; then
      break; #Go back to top level menu
    fi
 
    exec=`grep -H -R -m 1 '^Name='"$name"'$' $DESKTOP_PATHS | cut -d ':' -f1 | xargs grep -m1 '^Exec=' | cut -d '=' -f2 | cut -d '%' -f1 | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | head -1`
    if [ "x$exec" == "x" ]; then
      continue; #Return to names menu
    fi

    nohup $exec &
    exit 0 #exit menu successfully
  done
done