#!/bin/sh

[ -s exim-4.93.0.4.tar.bz2 ] || wget ftp://ftp.exim.org/pub/exim/exim4/fixes/exim-4.93.0.4.tar.bz2
[ ! -f exim-4.93.0.4.tar.bz2 ] && exit 255
[ -d exim-4.93.0.4 ] && rm -rf exim-4.93.0.4
tar -xjf exim-4.93.0.4.tar.bz2
[ -d exim-4.93.0.4.orig ] && rm -rf exim-4.93.0.4.orig
mv exim-4.93.0.4 exim-4.93.0.4.orig

[ -d exim-4.93+fixes ] || git clone --branch exim-4.93+fixes https://github.com/Exim/exim.git exim-4.93+fixes/

cd exim-4.93+fixes/src/src
../scripts/reversion
cd ../../..

mkdir exim-4.93.0.4

for F in exim-4.93.0.4.orig/* exim-4.93.0.4.orig/.[a-zA-Z0-9]* ; do
	F=$(basename $F)
	if [ -d exim-4.93+fixes/src/$F ] || [ -f exim-4.93+fixes/src/$F ] ; then
		echo "> rsync -av exim-4.93+fixes/src/${F} exim-4.93.0.4/"
		rsync -av exim-4.93+fixes/src/${F} exim-4.93.0.4/
	else
		echo "> rsync -av exim-4.93.0.4.orig/${F} exim-4.93.0.4/"
		rsync -av exim-4.93.0.4.orig/${F} exim-4.93.0.4/
	fi
done

. exim-4.93+fixes/src/src/version.sh

DIR=`ls -1d *.orig | perl -p -e 's/\.orig$//'`
PATCH=`pwd | xargs basename`
PATCH_CUR=exim-${EXIM_RELEASE_VERSION}

cd ${DIR}
diff -urN ../${DIR}.orig/ ./ > ../patch-src__${PATCH_CUR}.patch
cd ..

[ -h patch-src__${PATCH}.patch ] && rm patch-src__${PATCH}.patch
ln -s patch-src__${PATCH_CUR}.patch patch-src__${PATCH}.patch