change components.sh to run only the selected comoponent

Currently components.sh goes over all components and bumps if needed.
Let's add a new parameter COMPONENTS to run with make bump-components.
Also, bump-components.sh is changed to work only per this component.

Signed-off-by: Ram Lavi <ralavi@redhat.com>

Makefile

@@ -156,8 +156,8 @@ gen-k8s-check: $(apis_sources)
 	./hack/verify-codegen.sh
 	touch $@
 
-bump-all:
-	./hack/components/bump-all.sh
+bump-components:
+	COMPONENTS="${COMPONENTS}" ./hack/components/bump-components.sh
 
 bump-kubevirtci:
 	rm -rf _kubevirtci

hack/components/bump-components.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+set -xeo pipefail
+
+CNAO_VERSION=${VERSION} # Exported from Makefile
+
+echo 'Setup temporary Go path'
+export GOPATH=${PWD}/_components/go
+mkdir -p $GOPATH
+export PATH=${GOPATH}/bin:${PATH}
+
+function usage() {
+	echo "Usage: COMPONENTS='<component> <component>...' components.sh\n"
+	echo "supported components are knmstate|kubemacpool|macvtap|all"
+	echo "where all will select all components"
+}
+
+function bump_component() {
+	local component=$1
+	echo $component
+	source hack/components/bump-${component}.sh
+}
+
+if [ -z "${COMPONENTS}" ]; then
+	echo "Error, no component chosen"
+	usage
+	exit
+fi
+
+#input parameter parsing
+for component in ${COMPONENTS}; do
+	echo component=${component}
+	case "${component}" in
+		knmstate)
+				bump_component knmstate
+				;;
+		kubemacpool)
+				bump_component kubemacpool
+				;;
+		macvtap)
+				bump_component macvtap
+				;;
+		all)
+				bump_component knmstate
+				bump_component kubemacpool
+				bump_component macvtap
+				exit
+				;;
+		*)
+				echo "Error, non valid component chosen"
+				usage
+				shift
+				;;
+	esac
+done