#!/bin/bash
#
#  IRAF_UPDATE - Update the core IRAF system with a cumulative patch.

opt="all"
all=yes
src_only=no
list_only=no
core_only=no
noao_only=no
vo_only=no

if (( $#<1 )); then
    opt="all"
    all=yes
else

    # Process cmdline flags.
    while [ -n "$1" ]; do
      case "$1" in
      "-all")                          # clean all package .s
          all=yes
	  opt="all"
	  ;;
      "-src")                          # update only . code
          src_only=yes
	  opt="src"
	  ;;
      "-list")                         # list files needing updating
          list_only=yes
	  opt="list"

	  /bin/echo ""
	  util/check_update
	  if (( $?==0 )); then
	      /bin/echo "IRAF is up to date"
	  else
	      /bin/echo "An IRAF update is available"
	  fi
	  /bin/echo ""
	  (cd util; ${iraf}/util/pkgupdate -list)
	  exit 0
	  ;;
      "-core")                         # update only core system
          core_only=yes
	  opt="core"
	  ;;
      "-noao")                         # update only NOAO package
          noao_only=yes
	  opt="noao"
	  ;;
      "-vo")                           # update only VO package
          vo_only=yes
	  opt="vo"
	  ;;
      *)
          /bin/echo "Error: Unknown option '"$1"', quitting."
          exit 1
      esac

      shift
   done
fi


# Initialize the $iraf and environment.
if [ -z "$iraf" ]; then
  if [ -e "$FAKEHOME/setup.sh" ]; then
    source $FAKEHOME/setup.sh
  else
    source unix/hlib/setup.sh
  fi
else
    source $iraf/unix/hlib/setup.sh
fi


# Called from Makefile, iraf=true root.
source $iraf/unix/hlib/irafuser.sh
irafdir=$iraf


REPO=`${irafdir}/util/pkgrepo`
if [ -n "$IRAFARCH" ]; then
    arch=$IRAFARCH
else
    arch=`${irafdir}/unix/hlib/irafarch.sh -actual`
fi


#  Init the build scripts as the first update.
#/bin/echo "Updating build scripts ...."
#${iraf}/util/self_update


#  Execute the update.
/bin/echo "Updating IRAF system  ...."
util/iraf_latest $opt

if (( $? == 2 )); then
   /bin/echo -n "Update Status:    No updates necessary"
else if (( $? == 0 )); then
   /bin/echo -n "Update Status:    Successful	"
else
   /bin/echo -n "Update Status:    Fails	"
fi
/bin/echo ""

exit 0