add function to manipulate docker image

Makefile

 # a helper shell script
 # a helper shell script
-MAKE_VERSION=1.1.2
+MAKE_VERSION=1.1.3
 
 
 define MAKEFUNCTIONCODE
 define MAKEFUNCTIONCODE
 	function hasChanges() {
 	function hasChanges() {
@@ -106,8 +106,25 @@ TAG=$(shell . $(RELEASE_SUPPORT); getTag)
 RELEASE_SUPPORT := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))/.make-function
 RELEASE_SUPPORT := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))/.make-function
 export MAKEFUNCTIONCODE
 export MAKEFUNCTIONCODE
 
 
+
+# If the first argument is "run"...
+doit=
+ifeq (rmi,$(firstword $(MAKECMDGOALS)))
+	doit=true
+endif
+ifeq (images,$(firstword $(MAKECMDGOALS)))
+	doit=true
+endif
+ifdef doit
+  # use the rest as arguments for "run"
+  RMI_ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
+  # ...and turn them into do-nothing targets
+  $(eval $(RMI_ARGS):;@:)
+endif
+
+
 .PHONY: pre-build docker-build post-build build release patch-release minor-release major-release tag check-status check-release showtag show-tag \
 .PHONY: pre-build docker-build post-build build release patch-release minor-release major-release tag check-status check-release showtag show-tag \
-	push do-push post-push post-init update-make
+	push do-push post-push post-init update-make rmi images
 
 
 init:
 init:
 	@echo "$$MAKEFUNCTIONCODE" > ./.make-function
 	@echo "$$MAKEFUNCTIONCODE" > ./.make-function
@@ -141,6 +158,10 @@ release: check-status check-release build push
 
 
 push: init do-push post-push 
 push: init do-push post-push 
 
 
+rmi: delete-docker-image
+
+images: list-docker-image
+
 do-push: 
 do-push: 
 	docker push $(IMAGE):$(VERSION)
 	docker push $(IMAGE):$(VERSION)
 	docker push $(IMAGE):latest
 	docker push $(IMAGE):latest
@@ -200,3 +221,11 @@ update-make: init
 
 
 make-version:
 make-version:
 	@echo $(MAKE_VERSION)
 	@echo $(MAKE_VERSION)
+
+# awk to cut the column 3, xargs to run command passing arg from pipe
+delete-docker-image:
+	@docker images | grep $(RMI_ARGS) | awk '{print $$3}' | xargs docker rmi || true
+
+# || true to force exoit code to 0 otherwise if no line matched, make will show some error
+list-docker-image:
+	@docker images | grep $(RMI_ARGS) || true