.PHONY: build-all help environment-check release-all

# Use bash for inline if-statements in test target
SHELL:=bash
OWNER:=mikebirdgeneau

# need to list these manually because there's a dependency tree
ALL_STACKS:=jupyterlab

ALL_IMAGES:=$(ALL_STACKS)

GIT_MASTER_HEAD_SHA:=$(shell git rev-parse --short=12 --verify HEAD)

help:
# http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
	@echo "mikebirdgeneau/jupyterlab"
	@echo "====================="
	@echo "Replace % with a stack directory name (e.g., make build/jupyter)\n"
	@grep -E '^[a-zA-Z0-9_%/-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

build/%: DARGS?=
build/%: ## build the latest image for a stack
	docker build $(DARGS) --rm --force-rm -t $(OWNER)/$(notdir $@):latest ./$(notdir $@)

build-all: $(ALL_IMAGES:%=build/%) ## build all stacks
build-test-all: $(foreach I,$(ALL_IMAGES),build/$(I) test/$(I) )

dev/%: ARGS?=
dev/%: DARGS?=
dev/%: PORT?=8888
dev/%: ## run a foreground container for a stack
	docker run -it --rm -p $(PORT):8888 $(DARGS) $(OWNER)/$(notdir $@) $(ARGS)

environment-check:
	test -e ~/.docker-stacks-builder

push/%: ## push the latest and HEAD git SHA tags for a stack to Docker Hub
	docker push $(OWNER)/$(notdir $@):latest
	docker push $(OWNER)/$(notdir $@):$(GIT_MASTER_HEAD_SHA)

push-all: $(ALL_IMAGES:%=push/%) ## push all stacks

refresh/%: ## pull the latest image from Docker Hub for a stack
# skip if error: a stack might not be on dockerhub yet
	-docker pull $(OWNER)/$(notdir $@):latest

refresh-all: $(ALL_IMAGES:%=refresh/%) ## refresh all stacks

release-all: environment-check \
	refresh-all \
	build-test-all \
	tag-all \
	push-all
release-all: ## build, test, tag, and push all stacks

tag/%: ##tag the latest stack image with the HEAD git SHA
	docker tag -f $(OWNER)/$(notdir $@):latest $(OWNER)/$(notdir $@):$(GIT_MASTER_HEAD_SHA)

tag-all: $(ALL_IMAGES:%=tag/%) ## tag all stacks

test/%: ## run a stack container, check for jupyter server liveliness
	@-docker rm -f iut
	docker run -d --name iut $(OWNER)/$(notdir $@)
	@for i in $$(seq 0 9); do \
		sleep $$i; \
		docker exec iut bash -c 'wget http://localhost:8888 -O- | grep -i jupyter'; \
		if [[ $$? == 0 ]]; then break; fi; \
	done
	@docker rm -f iut

test-all: $(ALL_IMAGES:%=test/%) ## test all stacks