Add FORCE_REBUILD make option

Jon Wayne Parrott · Jon Wayne Parrott · commit b34ebc309d9a · 2016-09-19T11:02:33.000-07:00
diff --git a/Makefile b/Makefile
@@ -1,9 +1,14 @@
+ifdef FORCE_REBUILD
+	DOCKER_FLAGS = --no-cache --pull
+endif
+
 .PHONY: build
 build: build-interpreters
-	docker build -t google/python .
+	docker build $(DOCKER_FLAGS) -t google/python .
 
 .PHONY: build-interpreters
 build-interpreters:
+	export DOCKER_FLAGS
 	make -C python-interpreter-builder build
 
 .PHONY: tests
diff --git a/python-interpreter-builder/Makefile b/python-interpreter-builder/Makefile
@@ -1,6 +1,6 @@
 .PHONY: build
 build:
-	docker build -t google/python-interpreter-builder .
+	docker build $(DOCKER_FLAGS) -t google/python-interpreter-builder .
 	# Extract the built interpreters
 	# This is needed because `docker cp` doesn't work on images, just containers.
 	docker run --name python-interpreter-builder google/python-interpreter-builder /bin/bash
