Add a NOGIT option to avoid explicitly requiring devel/git if the

sources are obtained through a different mechanism.

Reported and tested by:	Ruslan Garipov
Sponsored by:	Rubicon Communications, LLC (netgate.com)

release/release.conf.sample

@@ -12,6 +12,8 @@
 ## Set the directory within which the release will be built.
 CHROOTDIR="/scratch"
 
+## Do not explicitly require the devel/git port to be installed.
+#NOGIT=1
 ## Set the version control system host.
 GITROOT="https://cgit-beta.freebsd.org/"
 GITSRC="src.git"

release/release.sh

@@ -65,7 +65,7 @@ env_setup() {
 		[ ! -z "${VCSCMD}" ] && break 2
 	done
 
-	if [ -z "${VCSCMD}" ]; then
+	if [ -z "${VCSCMD}" -a -z "${NOGIT}" ]; then
 		echo "*** The devel/git port/package is required."
 		exit 1
 	fi
@@ -275,6 +275,7 @@ extra_chroot_setup() {
 		cp ${SRC_CONF} ${CHROOTDIR}/${SRC_CONF}
 	fi
 
+	if [ -z "${NOGIT}" ]; then
 	# Install git from ports or packages if the ports tree is
 	# available and VCSCMD is unset.
 	_gitcmd="$(which git)"
@@ -300,6 +301,7 @@ extra_chroot_setup() {
 		eval chroot ${CHROOTDIR} env ASSUME_ALWAYS_YES=yes \
 			pkg clean -y
 	fi
+	fi
 	if [ -d ${CHROOTDIR}/usr/ports ]; then
 		# Trick the ports 'run-autotools-fixup' target to do the right
 		# thing.