#!/bin/sh

PATCH_NAME=patch-src::exim_476_dsn_1_3.patch

echo -n > ${PATCH_NAME}

if [ -f /usr/ports/distfiles/exim/exim-4.76.tar.bz2 ] ; then

    [ -d exim-4.76 ] && rm -rf exim-4.76
    tar -xjf /usr/ports/distfiles/exim/exim-4.76.tar.bz2

    [ -d exim-4.76-dsn ] && rm -rf exim-4.76-dsn
    mv exim-4.76 exim-4.76-dsn
    patch < exim_476_dsn_1_3.patch

    mv README.DSN* exim-4.76-dsn/

    mkdir exim-4.76

    for f1 in `find exim-4.76-dsn/ -type f -name "*.orig"` ; do
	f1b=`echo $f1 | perl -p -e 's/^.+?\///;s/\.orig$//;s/^(.+?)\//$1.orig\//'`
	f2=`echo $f1 | perl -p -e 's/\.orig$//'`
	f2b=`echo $f2 | perl -p -e 's/^.+?\///;'`

	[ -d `dirname exim-4.76/$f1b` ] || mkdir -p `dirname exim-4.76/$f1b`
	echo "> cp -p $f1 exim-4.76/$f1b"
	cp -p $f1 exim-4.76/$f1b

	[ -d `dirname exim-4.76/$f2b` ] || mkdir -p `dirname exim-4.76/$f2b`
	echo "> cp -p $f2 exim-4.76/$f2b"
	cp -p $f2 exim-4.76/$f2b
    done
    touch exim-4.76/README.DSN.orig

    rm -rf exim-4.76-dsn

    echo -n > ${PATCH_NAME}
    cd exim-4.76
    for d_orig in `ls -1d *.orig` ; do
	d=`echo ${d_orig} | perl -p -e 's/\.orig//'`
	if [ -d ${d_orig} ] ; then
	    diff -urN ${d_orig}/ ${d}/ >> ../${PATCH_NAME}
	else
	    diff -urN ${d_orig} ${d} >> ../${PATCH_NAME}
	fi
    done
    cd ..
fi