image.mk: Use previous version as cache

daa19a46 · Markus Frosch · a4f3ae49 · daa19a46
Commit daa19a46 authored 7 years ago by Markus Frosch
--- a/image.mk
+++ b/image.mk
@@ -22,7 +22,7 @@ pull:
 	docker pull "$(FROM)"

 build:
-	docker build -t "$(IMAGE)" .
+	docker build --cache-from "${IMAGE}" --tag "$(IMAGE)" .

 push:
 	docker push "$(IMAGE)"