libs_for_gcc = -lgnu
normal_libs =

foo: $(objects)
ifeq ($(CC),gcc)
        $(CC) -o foo $(objects) $(libs_for_gcc)
else
        $(CC) -o foo $(objects) $(normal_libs)
endif

.PHONY: help prepare-dev test lint run doc

VENV_NAME?=venv
VENV_ACTIVATE=.$(VENV_NAME)/bin/activate
PYTHON=${VENV_NAME}/bin/python3

.DEFAULT: help
help:
    @echo "make prepare-dev"
    @echo " prepare development environment, use only once"
    @echo "make test"
    @echo " run tests"
    @echo "make lint"
    @echo " run pylint and mypy"
    @echo "make run"
    @echo " run project"
    @echo "make doc"
    @echo " build sphinx documentation"

prepare-dev:
    sudo apt-get -y install python3.5 python3-pip
    python3 -m pip install virtualenv
    make venv

# Requirements are in setup.py, so whenever setup.py is changed, re-run installation of dependencies.
venv: $(VENV_PATH)/bin/activate
    $(VENV_NAME)/bin/activate: setup.py
    test -d $(VENV_PATH) || virtualenv -p python3 $(VENV_PATH)
    ${PYTHON} -m pip install -U pip
    ${PYTHON} -m pip install -e .
    touch $(VENV_PATH)/bin/activate

test: venv
    ${PYTHON} -m pytest

lint: venv
    ${PYTHON} -m pylint
    ${PYTHON} -m mypy

run: venv
    ${PYTHON} app.py

doc: venv
    $(VENV_ACTIVATE) && cd docs; make html