#!/bin/sh
set -e
repository=git.mit.edu:/git/krb5.git
dodoc=t
dosrc=t
checkout=t
multitar=nil
: ${TAR=tar}
while test $# -gt 2; do
	case $1 in
	--srconly)
		dodoc=nil;;
	--doconly)
		dosrc=nil;;
	--multi*)
		multitar=t;;
	--repository)
		shift; repository=$1;;
	--nocheckout)
		checkout=nil;;
	esac
	shift
done
if test $# -lt 2; then
	echo "usage: $0 [opts] release-tag release-dir"
	echo "	release-tag is relative to $repository/"
	exit 1
fi

reltag=$1
reldir=$2

relmajor=0
relminor=0
relpatch=0
relhead=
# reltail=
reldate=`date +%Y%m%d`

case "$reldir" in
*/*)
	echo "release-dir may not contain slashes."
	exit 1
	;;
*" "*|*"	"*)
	echo "release-dir may  not contain whitespace."
	exit 1
	;;
krb5-*.*.*-*)
	release=`echo $reldir|sed -e 's/krb5-//'`
	relhead=`echo $release|sed -e 's/-.*//'`
	reltail=`echo $release|sed -e 's/.*-//'`
	relmajor=`echo $relhead|awk -F. '{print $1}'`
	relminor=`echo $relhead|awk -F. '{print $2}'`
	relpatch=`echo $relhead|awk -F. '{print $3}'`
	;;
krb5-*.*.*)
	release=`echo $reldir|sed -e 's/krb5-//'`
	relmajor=`echo $release|awk -F. '{print $1}'`
	relminor=`echo $release|awk -F. '{print $2}'`
	relpatch=`echo $release|awk -F. '{print $3}'`
	;;
krb5-*.*-current)
	release=`echo $reldir|sed -e 's/krb5-//'`
	relhead=`echo $release|sed -e 's/-.*//'`
	relmajor=`echo $relhead|awk -F. '{print $1}'`
	relminor=`echo $relhead|awk -F. '{print $2}'`
	release=${relhead}-$reldate
	;;
krb5-*.*-*)
	release=`echo $reldir|sed -e 's/krb5-//'`
	relhead=`echo $release|sed -e 's/-.*//'`
	reltail=`echo $release|sed -e 's/.*-//'`
	relmajor=`echo $relhead|awk -F. '{print $1}'`
	relminor=`echo $relhead|awk -F. '{print $2}'`
	;;
krb5-*.*)
	release=`echo $reldir|sed -e 's/krb5-//'`
	relmajor=`echo $release|awk -F. '{print $1}'`
	relminor=`echo $release|awk -F. '{print $2}'`
	;;
krb5-current)
	release=current-$reldate
	;;
*)
	release="$reldir"
	;;
esac

echo "release=$release"
echo "major=$relmajor minor=$relminor patch=$relpatch"

# $release is used for send-pr
# $reltag, $release, $reldate are used for brand.c currently
# $relmajor, $relminor, $relpatch are used for patchlevel.h currently

if test $checkout = t; then
	echo "Checking out krb5 with tag $reltag into directory $reldir..."
	git clone -q -n $repository $reldir
	(cd $reldir && git checkout -q $reltag)
fi

#
# $newstyle = t if patchlevel.h is the master version stamp file.  If
# so, we don't edit it here.
#
if grep KRB5_RELDATE $reldir/src/patchlevel.h > /dev/null 2>&1; then
	newstyle=t;
else
	newstyle=nil;
fi

if test $newstyle = t; then
	echo "parsing new style patchlevel.h..."
	eval `sed -n 's/#define \([A-Z0-9_]*\)[ \t]*\(.*\)/\1=\2/p' < $reldir/src/patchlevel.h`
	if test "$KRB5_RELTAG" != $reltag && \
		test "$KRB5_RELTAG" != `echo $reltag|sed 's%[^/]*/%%'` ; then
		echo "WARNING: patchlevel.h '$KRB5_RELTAG' != $reltag"
	fi
	if test "$KRB5_MAJOR_RELEASE" != "$relmajor" || \
		test "$KRB5_MINOR_RELEASE" != "$relminor" || \
		test "$KRB5_PATCHLEVEL" != "$relpatch" || \
		( test -n "$reltail" && \
			test "$KRB5_RELTAIL" != "$reltail" ); then

		echo "WARNING: patchlevel.h $KRB5_MAJOR_RELEASE.$KRB5_MINOR_RELEASE.$KRB5_PATCHLEVEL${KRB5_RELTAIL+-$KRB5_RELTAIL} != $relmajor.$relminor.$relpatch${reltail+-$reltail}"
	fi
else
	echo "old style patchlevel.h"
fi

echo "Editing release-specific files..."

if test $newstyle = t; then 
	(cd $reldir/src && \
		sed -e '/#[a-z 	]*KRB5_RELDATE/c\
#define KRB5_RELDATE "'"$reldate"'"' patchlevel.h > patchlevel.h.new && \
		mv patchlevel.h.new patchlevel.h)
	if test $checkout = t; then
		(cd $reldir && git log --stat $reltag > doc/CHANGES)
	fi
else

	(cd $reldir/src/lib/krb5/krb && \
		sed -e '/static/s%KRB5_BRAND:[^"]*"%'"KRB5_BRAND: $reltag $release $reldate"'"%' \
			brand.c > brand.c.new && mv brand.c.new brand.c; \
		rm -f brand.c.new)

	(cd $reldir/src/util/send-pr && \
		sed -e 's%RELEASE=.*%RELEASE='"krb5-$release"'%' Makefile.in \
			> Makefile.in.new && mv Makefile.in.new Makefile.in)

	(cd $reldir/src && \
		cat > patchlevel.h <<EOF
#define KRB5_MAJOR_RELEASE $relmajor
#define KRB5_MINOR_RELEASE $relminor
#define KRB5_PATCHLEVEL    $relpatch
EOF
	)
fi

if test $dosrc = t; then
	if test -d $reldir/src/util/autoconf; then
		echo "Building autoconf..."
		(cd $reldir/src/util/autoconf
			M4=gm4 ./configure
			make)
	fi
	echo "Creating configure scripts..."
	(cd $reldir/src; util/reconf)

	if test -d $reldir/src/util/autoconf; then
		echo "Cleaning src/util/autoconf..."
		(cd $reldir/src/util/autoconf; make distclean)
	fi
fi

echo "Nuking unneeded files..."
find $reldir \( -name TODO -o -name todo -o -name .cvsignore \
	-o -name .gitignore -o -name BADSYMS -o -name .Sanitize \
	-o -name .rconf \) -print | xargs rm -f || true
find $reldir -type d \( -name autom4te.cache \
	-o -name \$ac_config_fragdir \) -exec rm -rf {} \; || true
rm -rf $reldir/.git || true

if test $dodoc = t; then
	echo "Building doc..."
	(cd $reldir/src/doc && make -f Makefile.in \
	    top_srcdir=.. srcdir=. SPHINX_ARGS=-W PYTHON=python html pdf)
	(cd $reldir/src/doc && make -f Makefile.in \
	    top_srcdir=.. srcdir=. SPHINX_ARGS=-W PYTHON=python clean)
fi

echo "Generating tarfiles..."
GZIP=-9; export GZIP
if test $multitar = t; then
	if test -d $reldir/src/lib/des425; then
		des425=$reldir/src/lib/des425
	fi
	if test -f $reldir/NOTICE;
		then notice=$reldir/NOTICE
	fi
	if test $dosrc = t; then
		$TAR --exclude $reldir/src/lib/crypto \
			--exclude $reldir/src/lib/des425 \
			--exclude $reldir/doc \
			-zcf ${reldir}.src.tar.gz $reldir

		$TAR zcf ${reldir}.crypto.tar.gz \
			$reldir/src/lib/crypto \
			$des425
	fi
	if test $dodoc = t; then
		$TAR zcf ${reldir}.doc.tar.gz $reldir/doc $reldir/README $notice
	fi
	ls -l ${reldir}.*.tar.gz
fi

$TAR zcf ${reldir}.tar.gz $reldir
ls -l ${reldir}.tar.gz

echo "Done."

exit 0