Add a wrapper script for Makefile.bsdinstall that does the source

checkout/chroot/compile/release dance that the existing release Makefile
does for those who want a totally pristine release build.

release/generate-release.sh

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# generate-release.sh: check out source trees, and build release components with
+#  totally clean, fresh trees
+#
+#  Usage: generate-release.sh svn-branch scratch-dir
+#
+# Environment variables:
+#  CVSUP_HOST: Host of a cvsup server to obtain the ports tree. Must be set
+#   to include ports.
+#  CVSUP_TAG:  CVS tag for ports (HEAD by default)
+#  MAKE_FLAGS: optional flags to pass to make (e.g. -j)
+# 
+#  Note: Since this requires a chroot, release cross-builds will not work!
+#
+# $FreeBSD$
+#
+
+mkdir -p $2/usr/src
+svn co svn://svn.freebsd.org/base/$1 $2/usr/src || exit 1
+if [ ! -z $CVSUP_HOST ]; then
+	cat > $2/ports-supfile << EOF
+	*default host=$CVSUP_HOST
+	*default base=/var/db
+	*default prefix=/usr
+	*default release=cvs tag=${CVSUP_TAG:-.}
+	*default delete use-rel-suffix
+	*default compress
+	ports-all
+EOF
+else
+	RELEASE_FLAGS=-DNOPORTS
+fi
+
+cd $2/usr/src
+make $MAKE_FLAGS buildworld || exit 1
+make installworld distribution DESTDIR=$2 || exit 1
+mount -t devfs devfs $2/dev
+
+if [ ! -z $CVSUP_HOST ]; then 
+	cp /etc/resolv.conf $2/etc/resolv.conf
+	chroot $2 /usr/bin/csup /ports-supfile || exit 1
+fi
+chroot $2 /bin/sh -c "cd /usr/src && make $MAKE_FLAGS buildworld buildkernel" || exit 1
+mkdir $2/R
+chroot $2 /bin/sh -c "cd /usr/src/release && MAKEOBJDIR=/R make -f Makefile.bsdinstall release $RELEASE_FLAGS" || exit 1
+