Automatically update requirements.txt with GitHub Actions #1

	# This GitHub Actions workflow automatically updates the pinned versions
	# in requirements.txt for all Python dependencies (including transitive dependencies)
	# whenever setup.cfg is modified.

	name: Resolve Python Dependencies

	on:
	push:
	branches:
	- "main"
	paths:
	- "setup.cfg"
	# Delete this before merging
	pull_request:
	paths:
	- "setup.cfg"

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.8"]
	steps:
	- name: Check out repository
	uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Load pip cache
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: pip-${{ hashFiles('requirements.txt') }}-${{ matrix.python-version }}
	restore-keys: \|
	pip-
	- name: Upgrade pip
	run: pip install --upgrade pip
	- name: Install dependencies
	run: pip install -e .[all]
	- name: Write dependencies to requirements.txt
	# sed is used to loosen the version matches for PyTorch and JAX libraries
	# so that any CUDA version matches
	run: pip freeze \| sed '/^torch\\|^jax/s/==/~=/' > requirements.txt
	- name: Create pull request
	uses: peter-evans/create-pull-request@v5
	with:
	commit-message: Update requirements.txt
	title: "Update requirements.txt"
	branch: actions/update-requirements
	delete-branch: true
	body: Auto-generated from GitHub Actions.

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