#!/bin/bash
shopt -sq extglob

# NOTE: this uses a different algorithm
# for parsing the package name/version/release
# than setup.  However, it mostly works...
parseName() {
  REM=${1%%*([^-])}
  REL=${1##$REM}
  NEXT=${REM%%-}
  REM=${NEXT%%*([^-])}
  VER=${NEXT##$REM}
  PKG=${REM%%-}
}
do_uninstall () {
  DO_POSTSCRIPT=no
  while read line ; do
    case $line in
      etc/postuninstall/*) DO_POSTSCRIPT=$line
      ;;
      */) # ignore directories
      ;;
      *) rm -f /$line
      ;;
    esac
  done < /etc/setup/${PKG}.lst
  if [ "$DO_POSTSCRIPT" -ne "no" ] ; then
    `/$line`
    mv /$line /$line.done
  fi	
}


for fn in $* ; do
  case $fn in
    *-src.tar*) echo "I don't do -src packages" ;;
    *.tar.bz2) 
	   parseName ${fn%%.tar.bz2} 
		echo Unnstalling $PKG  Version $VER  Release $REL
	   gunzip /etc/setup/${PKG}.lst.gz
		do_uninstall
		rm /etc/setup/${PKG}.lst
		echo "$PKG $fn REMOVED" >> /etc/setup/installed.db
      ;;		
	 *.tar.gz)
	   parseName ${fn%%.tar.gz} 
		echo Uninstalling $PKG  Version $VER  Release $REL
	   gunzip /etc/setup/${PKG}.lst.gz
		do_uninstall
		rm /etc/setup/${PKG}.lst
		echo "$PKG $fn REMOVED" >> /etc/setup/installed.db
      ;;
	 *) echo bad filespec: $fn ;;
  esac
done

echo "It's up to you to remove the appropriate entries from"
echo "/etc/setup/installed.db"