#!/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)

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 <

#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; autoreconf -v)

	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 -depth -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=python3 html pdf)

	(cd $reldir/src/doc && make -f Makefile.in \

	    top_srcdir=.. srcdir=. SPHINX_ARGS=-W PYTHON=python3 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