SHELL = /bin/bash

REPOSITORY = https://github.com/dabeaz/curio.git

check_env_vars:
ifdef OUTPUT_PATH
OUTPUT_PATH := ${OUTPUT_PATH}/python-curio
else
	$(error OUTPUT_PATH is undefined)
endif

venv:
	export PYENV_VERSION=3.7
	python3 -m venv venv

repository:
	git clone ${REPOSITORY} repository

v0.1 0.2 0.3 0.4 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6: check_env_vars venv repository
	source venv/bin/activate
	cd repository
	git checkout tags/$@
	pip install .
	# Lock versions or it won't compile
	pip install "sphinx < 4" "jinja2 < 3.1"
	cd docs
	make clean dirhtml
	mkdir --parents "${OUTPUT_PATH}"
	cp --recursive _build/dirhtml "${OUTPUT_PATH}/$@"

.ONESHELL:
.SUFFIXES:
.PHONY:
.DELETE_ON_ERROR: