#!/bin/sh
#
# $FreeBSD$
#

PAX=/bin/pax
ECHO_CMD=echo
MKDIR="/bin/mkdir -p"
RM=/bin/rm
BACKUPDIR=/var/backups

TOOLS="add check create delete info sign update version"

PREFIX=${PKG_PREFIX:-/usr/local}
if [ "${PREFIX}" = "/usr" ]; then
  MANPREFIX="${TARGETDIR}/share"
else
  MANPREFIX="${TARGETDIR}"
fi

case $2 in
PRE-INSTALL)
  if [ "${PREFIX}" = "/usr" ]; then
    if [ -e "${BACKUPDIR}/pkg_install.tgz" ]; then
      ${ECHO_CMD} "===>  Please remove \`\`${BACKUPDIR}/pkg_install.tgz'' manually."
      exit 1
    fi
    if [ "${PREFIX}" = "/usr" ]; then
      files=""
      for tool in ${TOOLS}; do
        if [ -e "${PREFIX}/sbin/pkg_${tool}" ]; then
          files="${files} ${PREFIX}/sbin/pkg_${tool}"
        fi
        if [ -e "${MANPREFIX}/man/man1/pkg_${tool}.1.gz" ]; then
          files="${files} ${MANPREFIX}/man/man1/pkg_${tool}.1.gz"
          ${RM} -f "${MANPREFIX}/man/cat1/pkg_${tool}.1.gz"
        fi
      done
      ${MKDIR} ${BACKUPDIR}
      ${PAX} -w -z -f "${BACKUPDIR}/pkg_install.tgz" ${files}
      ${RM} -f ${files}
      ${ECHO_CMD} "===>  Base pkg_install saved."
    fi
  fi
  ;;
esac