initial commit

Dockerfile

+FROM alpine:latest

Makefile

+# a helper shell script
+define MAKEFUNCTIONCODE
+	function hasChanges() {
+		test -n "$$(git status -s .)"
+	}
+
+	function getRelease() {
+		awk -F= '/^RELEASE=/{print $$2}' release.conf
+	}
+
+	function getBaseTag() {
+			sed -n -e "s/^tag=\(.*\)$$(getRelease)\$$/\1/p" release.conf
+	}
+
+	function getTag() {
+		if [ -z "$$1" ] ; then
+			awk -F= '/^tag/{print $$2}' release.conf
+		else
+			echo "$$(getBaseTag)$$1"
+		fi
+	}
+
+	function setRelease() {
+		if [ -n "$$1" ] ; then
+			sed -i.x -e "s/^tag=.*/tag=$$(getTag $$1)/" release.conf
+			sed -i.x -e "s/^RELEASE=.*/RELEASE=$$1/g" release.conf
+			rm -f release.conf.x
+			runPreTagCommand "$$1"
+		else
+			echo "ERROR: missing release version parameter " >&2
+			return 1
+		fi
+	}
+
+	function runPreTagCommand() {
+		if [ -n "$$1" ] ; then
+			COMMAND=$$(sed -n -e "s/@@RELEASE@@/$$1/g" -e 's/^pre_tag_command=\(.*\)/\1/p' release.conf)
+			if [ -n "$$COMMAND" ] ; then
+				if ! OUTPUT=$$(bash -c "$$COMMAND" 2>&1) ; then echo $$OUTPUT >&2 && exit 1 ; fi
+			fi
+		else
+			echo "ERROR: missing release version parameter " >&2
+			return 1
+		fi
+	}
+
+	function tagExists() {
+		tag=$${1:-$$(getTag)}
+		test -n "$$tag" && test -n "$$(git tag | grep "^$$tag\$$")"
+	}
+
+	function differsFromRelease() {
+		tag=$$(getTag)
+		! tagExists $$tag || test -n "$$(git diff --shortstat -r $$tag .)"
+	}
+
+	function getVersion() {
+		result=$$(getRelease)
+
+		if differsFromRelease; then
+			result="$$result-$$(git log -n 1 --format=%h .)"
+		fi
+
+		if hasChanges ; then
+			result="$$result-dirty"
+		fi
+		echo $$result
+	}
+
+	function nextPatchLevel() {
+		version=$${1:-$$(getRelease)}
+		major_and_minor=$$(echo $$version | cut -d. -f1,2)
+		patch=$$(echo $$version | cut -d. -f3)
+		version=$$(printf "%s.%d" $$major_and_minor $$(($$patch + 1)))
+		echo $$version
+	}
+
+	function nextMinorLevel() {
+		version=$${1:-$$(getRelease)}
+		major=$$(echo $$version | cut -d. -f1);
+		minor=$$(echo $$version | cut -d. -f2);
+		version=$$(printf "%d.%d.0" $$major $$(($$minor + 1))) ;
+		echo $$version
+	}
+
+	function nextMajorLevel() {
+		version=$${1:-$$(getRelease)}
+		major=$$(echo $$version | cut -d. -f1);
+		version=$$(printf "%d.0.0" $$(($$major + 1)))
+		echo $$version
+	}
+endef
+
+SHELL=/bin/bash
+
+include release.conf
+IMAGE=$(REGISTRY_HOST)/$(GROUPNAME)/$(PROJECTNAME)
+VERSION=$(shell . $(RELEASE_SUPPORT) ; getVersion)
+TAG=$(shell . $(RELEASE_SUPPORT); getTag)
+
+RELEASE_SUPPORT := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))/.make-function
+export MAKEFUNCTIONCODE
+
+.PHONY: pre-build docker-build post-build build release patch-release minor-release major-release tag check-status check-release showver \
+	push do-push post-push
+
+init:
+	@echo "$$MAKEFUNCTIONCODE" > ./.make-function
+
+build: init pre-build docker-build post-build
+
+pre-build:
+
+post-build:
+	@rm .make-function
+
+post-push:
+	@rm .make-function
+
+docker-build:
+	docker build -t $(IMAGE):$(VERSION) .
+	@DOCKER_MAJOR=$(shell docker -v | sed -e 's/.*version //' -e 's/,.*//' | cut -d\. -f1) ; \
+	DOCKER_MINOR=$(shell docker -v | sed -e 's/.*version //' -e 's/,.*//' | cut -d\. -f2) ; \
+	if [ $$DOCKER_MAJOR -eq 1 ] && [ $$DOCKER_MINOR -lt 10 ] ; then \
+		echo docker tag -f $(IMAGE):$(VERSION) $(IMAGE):latest ;\
+		docker tag -f $(IMAGE):$(VERSION) $(IMAGE):latest ;\
+	else \
+		echo docker tag $(IMAGE):$(VERSION) $(IMAGE):latest ;\
+		docker tag $(IMAGE):$(VERSION) $(IMAGE):latest ; \
+	fi
+
+release: check-status check-release build push
+
+push: init do-push post-push 
+
+do-push: 
+	docker push $(IMAGE):$(VERSION)
+	docker push $(IMAGE):latest
+
+snapshot: build push
+
+showver: init release.conf
+	@. $(RELEASE_SUPPORT); getVersion
+
+tag-patch-release: init
+	VERSION := $(shell . $(RELEASE_SUPPORT); nextPatchLevel)
+tag-patch-release: release.conf tag 
+
+tag-minor-release: init
+	VERSION := $(shell . $(RELEASE_SUPPORT); nextMinorLevel)
+tag-minor-release: release.conf tag 
+
+tag-major-release: init
+	VERSION := $(shell . $(RELEASE_SUPPORT); nextMajorLevel)
+tag-major-release: release.conf tag 
+
+patch-release: tag-patch-release release
+	@echo $(VERSION)
+
+minor-release: tag-minor-release release
+	@echo $(VERSION)
+
+major-release: tag-major-release release
+	@echo $(VERSION)
+
+tag: TAG=$(shell . $(RELEASE_SUPPORT); getTag $(VERSION))
+tag: check-status
+	@. $(RELEASE_SUPPORT) ; ! tagExists $(TAG) || (echo "ERROR: tag $(TAG) for version $(VERSION) already tagged in git" >&2 && exit 1) ;
+	@. $(RELEASE_SUPPORT) ; setRelease $(VERSION)
+	git add .
+	git commit -m "bumped to version $(VERSION)" ;
+	git tag $(TAG) ;
+	@ if [ -n "$(shell git remote -v)" ] ; then git push --tags ; else echo 'no remote to push tags to' ; fi
+
+check-status: init
+	@. $(RELEASE_SUPPORT) ; ! hasChanges || (echo "ERROR: there are still outstanding changes" >&2 && exit 1) ;
+
+check-release: init release.conf
+	@. $(RELEASE_SUPPORT) ; tagExists $(TAG) || (echo "ERROR: version not yet tagged in git. make [minor,major,patch]-release." >&2 && exit 1) ;
+	@. $(RELEASE_SUPPORT) ; ! differsFromRelease $(TAG) || (echo "ERROR: current directory differs from tagged $(TAG). make [minor,major,patch]-release." ; exit 1)

release.conf

+REGISTRY_HOST=dock.nexpie.com
+GROUPNAME=sample
+PROJECTNAME=docker-makefile-sample
+RELEASE=1.0.0