DEPLOY_HOST=halibut.cworth.org
DEPLOY_DIR=/srv/halibut.cworth.org/turbot
export DEPLOY_DIR
DO_NOT_DEPLOY=env .gitignore
DO_NOT_DELETE=.turbot.env

help:
	@echo "Available targets (in rough order of expected use):"
	@echo
	@echo "	make bootstrap	Setup python virtual environment"
	@echo "	make reqs	Install dependencies into venv"
	@echo "	make run	Run a local server for testing"
	@echo "	make deploy	Deploy code to production"
	@echo

.PHONY: require-venv
require-venv:
ifeq (, $(wildcard env))
	$(error "No virtualenv found. Try 'make bootstrap'")
endif
ifndef VIRTUAL_ENV
	$(error "No virtualenv active. Try '. ./env/bin/activate'")
endif

.PHONY: bootstrap
bootstrap:
	@echo "=== Creating python virtual environment ==="
	python3 -m virtualenv env

	@echo
	@echo "=== Installing pip-tools (to compile dependency list) ==="
	(. ./env/bin/activate && pip install pip-tools)

	@echo
	@echo "Virtual environment is now available."
	@echo "You must activate it by sourcing the activation script, such as:"
	@echo
	@echo "	. ./env/bin/activate"
	@echo
	@echo "After that you can run 'make reqs' to install dependencies"

.PHONY: reqs
reqs: require-venv requirements.txt
	pip install --require-hashes --upgrade -r requirements.txt
	@echo
	@echo "Dependencies are now installed. You can now do 'make run' or 'make deploy'"

requirements.txt: requirements.in
ifeq (, $(shell which pip-compile))
	$(error "No pip-compile found. Try 'make bootstrap'")
endif
	pip-compile --no-index --generate-hashes --allow-unsafe

run: require-venv
	FLASK_APP=turbot FLASK_DEBUG=true flask run

turbot.wsgi: turbot.wsgi.in Makefile
	envsubst < turbot.wsgi.in > turbot.wsgi

deploy:
	rm -rf .deploy-source
	git clone . .deploy-source
	rm -rf .deploy-source/.git
	make -C .deploy-source turbot.wsgi
	(cd .deploy-source; rsync -avz \
		$(DO_NOT_DEPLOY:%=--exclude=%) \
		--exclude=$(DO_NOT_DELETE) \
		--delete \
		--delete-after \
		./ $(DEPLOY_HOST):$(DEPLOY_DIR) )
	rm -rf .deploy-source
	ssh $(DEPLOY_HOST) '(cd $(DEPLOY_DIR); make bootstrap; . env/bin/activate; make reqs)'