#!/bin/sh
#
# $FreeBSD$

PKGNAME=$1
PKG_DBDIR=${PKG_DBDIR:-/var/db/pkg}

die () {
    echo $* >&2
    exit 1
}

delete_modules () {
    modules="
	dl
	erb
	fileutils
	fnmatch
	optparse
	racc-runtime
	strscan
    "

    echo "Deinstalling modules being replaced by $PKGNAME..."

    cd $PKG_DBDIR || die "$PKG_DBDIR is not found"

    for portname in $modules; do
	for pkg in $RUBY_PKGNAMEPREFIX$portname-*; do
	    if [ -d $pkg ]; then
		echo "---> $pkg"
		/usr/sbin/pkg_delete -f $pkg
	    fi
	done
    done
}

RUBY_PKGNAMEPREFIX=$(expr "$PKGNAME" : '\([^-]*-\)')

if [ -z $RUBY_PKGNAMEPREFIX ]; then
    die "Cannot determine RUBY_PKGNAMEPREFIX from '$PKGNAME'."
fi

case $2 in
    PRE-INSTALL)
	delete_modules
	;;
    POST-INSTALL)
	;;
    *)
	die "usage: sh $0 \$PKGNAME { PRE-INSTALL | POST-INSTALL }"
	;;
esac

exit 0