SHELL = /bin/bash

REPOSITORY = https://github.com/cuthbertLab/music21.git

check_env_vars:
ifdef OUTPUT_PATH
OUTPUT_PATH := ${OUTPUT_PATH}/music21
else
	$(error OUTPUT_PATH is undefined)
endif

venv:
	python3 -m venv venv

repository:
	git clone ${REPOSITORY} repository

# For this to build the python notebooks into the documentation, it requires pandoc.
v8.3.0 v9.1.0: check_env_vars venv repository
	source venv/bin/activate
	cd repository
	git checkout tags/$@
	# --editable is required because it will add the current path to Python's modules
	# path instead of installing the files in the pip virtual environment.
	# The music21 build system is weird, and needs this path as root for looking
	# up some files. Installing in the virtual env. will not be able to find the files
	pip install --editable .
	pip install -r requirements_dev.txt
	cd documentation
	python3 make.py clean
	python3 make.py
	mkdir --parents "${OUTPUT_PATH}"
	cp --recursive build/html "${OUTPUT_PATH}/$@"

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