add Makefile for easy local testing

Makefile

@@ -0,0 +1,32 @@
+dcmd = docker
+dfile = Dockerfile
+dtag = immawanderer/archlinux:testbuild
+dargs = build -t $(dtag) --no-cache --pull - < $(dfile)
+cleanargs = image rm -f $(dtag)
+pruneargs = system prune -af
+dargskaniko = run --rm -it -w=$(kanikowdir) -v $$PWD:$(kanikowdir)
+kanikoexecutorimg = gcr.io/kaniko-project/executor@sha256:6ecc43ae139ad8cfa11604b592aaedddcabff8cef469eda303f1fb5afe5e3034
+kanikowdir = /src
+kanikocontext = .
+kanikoargs = -f=$(dfile) -c=$(kanikocontext) --use-new-run --snapshotMode=redo --no-push
+hadolintimg = hadolint/hadolint:v2.7.0-alpine
+hadolintargs = run --rm -i -v $$PWD/.hadolint.yaml:/root/.config/hadolint.yaml
+
+.PHONY: hadolint build kaniko clean test prune
+
+hadolint:
+	$(dcmd) $(hadolintargs) $(hadolintimg) < $(dfile)
+
+kaniko:
+	$(dcmd) $(dargskaniko) $(kanikoexecutorimg) $(kanikoargs)
+
+build:
+	$(dcmd) $(dargs)
+
+clean:
+	$(dcmd) $(cleanargs)
+
+test: hadolint build kaniko
+
+prune:
+	$(dcmd) $(pruneargs)