#!/bin/bash
#
# Originally written by MJ Ray. (c) 2005 GNU GPL v2
# Updated by Nathan Middleton <nathan.middleton@gmail.com>
#
# updated:
#   * Disabled "RemoveProgram" suggestion for output
#   * Changed from zsh to bash script and reworked loop to be compatible
#   * Removed copyright banners and replaced with in-code notification
#   * Add verbose flag to toggle the display of program size information
#   * Consolidated output into a single echo statement at end
#
source ScriptFunctions
Import OptionParser

#
# parse options
scriptDescription="Check for non-current programs."
scriptCredits="Copyright 2005 MJ Ray. Released under GNU GPL v2."
helpOnNoArguments=""
scriptUsage=""
scriptExample=""
ScriptNotes="Provides a list of programs that are not linked to Current. It is not safe to assume these programs may be removed but rather they are not currently symlinked."
Parse_Options "$@"
#
#

# Iterate over installed programs, reading Current symlink
find ${goboPrograms}/ -maxdepth 2 -mindepth 2 -name Current -printf '%P/%l\n' | \
sort | sed -e 's|/| |g' | \
{
   updates=0
   output=""
   while read prog cur ver junk
   do
   export prog
   for cver in $(find ${goboPrograms}/$prog -maxdepth 1 -type d -printf '%P ')
   do
      # output a suggestion if a dir isn't the current version or a special
      case "$cver" in
      "$ver"|Settings|Current|Resources|Variable)
         ;;
      *)
         if [ "$output" ]
         then
            output="$output\n$prog $cver"
               else
                  output="$prog $cver"
               fi
         if Boolean "verbose"
               then
                  output="$output # (current: $ver) (space used: $(du -sh $goboPrograms/$prog/$ver 2>/dev/null|cut -f1))"
               fi

         updates=$(($updates + 1))
         ;;
      esac
   done
   done
   echo -e $output
   if Boolean "verbose"; then printf "%s are not current.\n" $updates; fi
}