#!/bin/sh
#
# $FreeBSD: head/java/javavmwrapper/pkg-deinstall 340719 2014-01-22 15:52:06Z mat $

export PATH=/bin:/sbin:/usr/bin:/usr/sbin

# Run this script at the pre-deinstall stage
if [ "x${2}" != "xDEINSTALL" ]; then
    exit 0
fi

# The option configuration file
OPTION_CONF="${PKG_PREFIX}/etc/javavm_opts.conf"

# Remove the option configuration file if its identical to the
# distributed version.
if [ -f "${OPTION_CONF}" -a -f "${OPTION_CONF}.dist" ]; then
	if [ `sed -e '/^#/d' -e '/^\s*$/d' "${OPTION_CONF}" | sort | md5` = \
	     `sed -e '/^#/d' -e '/^\s*$/d' "${OPTION_CONF}.dist" | sort | md5` ]; then
		rm -f "${OPTION_CONF}"
	fi
fi

# Destroy the symbolic links that were created for every executable for a VM.
_excl_links='checkvms manvm registervm unregistervm'
_find_expr='-depth 1 -type l'
for i in ${_excl_links}; do
	_find_expr="${_find_expr} ! -name ${i}"
done
_javavm_path=`realpath ${PKG_PREFIX}/bin/javavm`
for i in `find ${PKG_PREFIX}/bin ${_find_expr}`; do
	if [ "${_javavm_path}" = `realpath ${i}` ]; then
		rm -f "${i}"
	fi
done

# The configuration file
CONF="${PKG_PREFIX}/etc/javavms"

# Ensure the configuration file exists
if [ ! -f "${CONF}" ]; then
    exit 0
fi

# Ensure the configuration file has the correct permissions
if [ ! -r "${CONF}" ]; then
    echo "error: can't read configuration file ${CONF}" 1>&2
    exit 1
fi

# Remove the configuration file.
rm -f "${CONF}"

exit 0