abuild: support cross-invocation caching using named volumes

Signed-off-by: Richard Mortier <mort@cantab.net>

1 files changed, 11 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index e0befe9..fede06e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,23 +1,32 @@
 .DEFAULT: build
 
+IMG = mor1/abuild
+VOLS = bin etc lib sbin usr var
 TAGS := $(shell \
 	curl -s https://registry.hub.docker.com/v1/repositories/alpine/tags \
 	| jq -r '.[].name' \
 )
+TAGS = edge
 
 .PHONY: build
 build: $(patsubst %, build-%, $(TAGS))
+	sed 's/%%ALPINE_VOLUMES%%/$(VOLS)/' abuild.in >| abuild
 
 .PHONY: build-%
 build-%:
 	sed 's/%%ALPINE_TAG%%/$*/' Dockerfile.in >| Dockerfile
-	DOCKER_BUILDKIT=1 docker build $$DOCKER_FLAGS -t mor1/abuild:$* .
+	for v in $(VOLS) ; do docker volume create alpine-$*-$$v ; done
+	DOCKER_BUILDKIT=1 docker build $$DOCKER_FLAGS -t $(IMG):$* .
 	$(RM) Dockerfile
 
 .PHONY: push
 push: build
-	docker push $(DOCKER_FLAGS) mor1/abuild
+	docker push $(DOCKER_FLAGS) $(IMG)
 
 .PHONY: clean
 clean:
 	$(RM) Dockerfile
+
+.PHONY: distclean
+distclean: clean
+	docker rmi -f $$(docker images -q $(IMG))