feat: optional xblocks #330

	name: Lint Python Imports

	on:
	pull_request:
	push:
	branches:
	- master

	jobs:

	lint-imports:
	name: Lint Python Imports
	runs-on: ubuntu-20.04

	steps:
	- name: Check out branch
	uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.8'

	- name: Install system requirements
	run: sudo apt update && sudo apt install -y libxmlsec1-dev

	- name: Install pip
	run: python -m pip install -r requirements/pip.txt

	- name: Get pip cache dir
	id: pip-cache-dir
	run: echo "::set-output name=dir::$(pip cache dir)"

	- name: Cache pip dependencies
	id: cache-dependencies
	uses: actions/cache@v2
	with:
	path: ${{ steps.pip-cache-dir.outputs.dir }}
	key: ${{ runner.os }}-pip-${{ hashFiles('requirements/edx/development.txt') }}
	restore-keys: ${{ runner.os }}-pip-

	- name: Install python dependencies
	run: pip install -r requirements/edx/development.txt

	# As long there are sub-projects[1] in edx-platform, we analyze each
	# project separately here, in order to make import-linting errors easier
	# to pinpoint.
	#
	# [1] https://openedx.atlassian.net/browse/BOM-2579

	- name: Analyze imports (repo root)
	run: make lint-imports

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