simple python Makefile

autopep8.docker

FROM debian:buster-slim

RUN apt-get update && \
    apt-get install -y python3-pip && \
    pip3 install autopep8

Makefile

.DEFAULT_GOAL := push
DIR = $(shell pwd)
MAKEFLAGS += --no-builtin-rules
MAKEFLAGS += --no-builtin-variables

base_img := debian:buster-slim
img := abc

build: pull
	docker build -t ${img} .

pull:
	docker pull ${base_img}

push: build
	docker push ${img}

fmt: ${DIR}/*.py
	docker build -t autopep8 -f autopep8.docker .
	for f in $^ ; do \
		docker run \
			--rm \
			-v ${DIR}:${DIR} \
			autopep8 \
			autopep8 --in-place $${f} ; \
	done