#!/bin/sh

#
# pre-install script for the MacOS X package installer
#
# As per Apple's Softwre Delivery Guide:
#
# This script is invoked with four arguments
#   $1 = full path to the package being processed
#   $2 = full path to the installation destination (should be /usr/local)
#   $3 = installation volume (mountpoint)
#   $4 = root directory for the file system
#
# The following environment variables are set
#   $SCRIPT_NAME = filename for this script
#   $PACKAGE_PATH = same as $1
#   $INSTALLER_TEMP = a directory for temporary files
#   $RECEIPT_PATH = subdectory of $INSTALLER_TEMP
#
# This script checks whether the install dir is /usr/local
# If the location does not exist, it is created with 
# owner = root, group = wheel, and permissions = rwxr-xr-x
#

INSTALL_DIR=$2

if test "$INSTALL_DIR" = "/usr/local" ; then
  { test -d "$INSTALL_DIR" ; } || 
  { echo "$SCRIPT_NAME: creating $INSTALL_DIR" &&
    mkdir "$INSTALL_DIR" &&
    chown root:wheel "$INSTALL_DIR" &&
    chmod og+rx "$INSTALL_DIR" &&
    exit 0 ; } ||
  { echo "$SCRIPT_NAME: failed to create $INSTALL_DIR" ; 
    exit 1 ; }
fi

exit 0