#!/bin/bash (source)

Import Directories
Import File

function Run_PostInstall() {
   local app_name app_ver sandbox_list map_list chroot_dir
   Parameters "$@" app_name app_ver sandbox_list map_list chroot_dir

   unset chroot_cmd
   if [ "$chroot_dir" != "" ]
   then
	  local chroot_cmd="chroot $chroot_dir"
   fi
   local program_dir=`Get_Dir runtime "$app_name" "$app_ver"`
   local program_set=`Get_Dir runtimeSettings "$app_name" "$app_ver"`
   local rw_dest="${program_dir}/.PostInstall_Root"

   Exists "${program_dir}/Resources/PostInstall" || return 0

   if ! Is_Executable "${program_dir}/Resources/PostInstall"
   then
      Log_Error "PostInstall not executable!"
      return 0
   fi

   local sandbox_options="--sandbox $program_dir"
   Is_Directory "$program_set" && sandbox_options="${sandbox_options}:${program_set}"
   [ "$sandbox_list" != "" ] && sandbox_options="${sandbox_options}:${sandbox_list}"
   [ "$map_list" = "" ] || local map_options="--map $map_list"

   Log_Normal "Running PostInstall for $app_name"
   if [ "$chroot_cmd" == "" ]
   then
      Assert_Dir "/$rw_dest"
      target="$program_dir" settings_target="$program_set" \
         UnionSandbox --writedir "$rw_dest" --directory "$program_dir" \
         $sandbox_options $map_options -- ${program_dir}/Resources/PostInstall

      #Postprocess $rw_dest
      Log_Normal "Postprocessing PostInstall changes."
      local leftovers=`(cd "/$rw_dest"; find *) 2>/dev/null`
      [ "$leftovers" ] && Log_Normal "PostInstall tried to change:\n$leftovers" 
      Quiet $sudo_exec rmdir "/$rw_dest"
   else
      target="$program_dir" settings_target="$program_set" \
         ${chroot_cmd} ${program_dir}/Resources/PostInstall
   fi

}