include src/options.mk

PYTHON = python

# Checking Python version
PYTHON_EXE := $(shell command -v $(PYTHON) 2> /dev/null)

ifndef PYTHON_EXE
  $(error Unable to find the $(PYTHON) executable!)
endif

PYTHON_VERSION_MAJOR := $(shell $(PYTHON_EXE) --version 2>&1 | cut -d" " -f2 | cut -d. -f1)
PYTHON_VERSION_MINOR := $(shell $(PYTHON_EXE) --version 2>&1 | cut -d" " -f2 | cut -d. -f2)

ifneq ($(shell test $(PYTHON_VERSION_MAJOR) -ge 3 -a $(PYTHON_VERSION_MINOR) -ge 6; echo $$?),0)
  $(error Python version >= 3.6 is needed!)
endif


.PHONY: pybinding install devel venv doc clean


pybinding:
	@+$(MAKE) -C src pybinding


venv:
	virtualenv --python=$(PYTHON_EXE) --prompt="(msspec-$(VERSION)) " $(VENV_PATH)
	. $(VENV_PATH)/bin/activate && pip install --upgrade pip && pip install -r src/pip.freeze


install: pybinding venv
	@+$(MAKE) -C src sdist
	@+$(MAKE) -C src frontend
	@. $(VENV_PATH)/bin/activate && pip install src/dist/msspec-$(VERSION).tar.gz


devel: VENV_PATH = ./_venv
devel: pybinding venv
	@. $(VENV_PATH)/bin/activate && pip install -e src/


doc:
	@echo "Building pdf and html documentation..."
	@mkdir -p package/
	@+$(MAKE) -C doc/ latexpdf
	@rm -rf package/*.pdf
	@cp "doc/build/latex/MsSpec-python.pdf" "./package/MsSpec-$(VERSION).pdf"
	@+$(MAKE) -C doc/ html


clean::
	@+$(MAKE) -C src/ clean


help:
	@echo "Top Makefile help message"