Update conda lock files #82

	name: "Update conda lock files"

	on:
	schedule:
	- cron: "37 5 * * 1"
	workflow_dispatch:

	permissions:
	pull-requests: write
	contents: write

	jobs:
	update-conda-lock-files:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- uses: actions/setup-python@v4
	with:
	python-version: "3.x"

	- name: Install dependencies
	run: python3 -m pip install tox tox-conda

	- name: Update conda
	run: \|
	conda update -q conda
	# Install and use libmamba solver as it is much faster.
	conda install -q -n base conda-libmamba-solver
	conda config --set solver libmamba

	- name: Hash existing lock files
	run: sha256sum requirements/locks/*.txt > ${{ runner.temp }}/lock_file_hashes

	- name: Update lock files
	run: \|
	git config --local user.name "$GITHUB_ACTOR"
	git config --local user.email "[email protected]"
	git switch -c "conda-lock-$(sha256sum ${{ runner.temp }}/lock_file_hashes \| head -c 8)"
	tox -e py39-lock,py310-lock,py311-lock

	- name: Create pull requests
	env:
	GH_TOKEN: ${{ github.token }}
	run: \|
	if $(sha256sum --status -c ${{ runner.temp }}/lock_file_hashes); then
	echo "Lock files unchanged. Skipping pull request..."
	exit 0
	fi
	git add requirements/locks/*.txt
	git commit -m "[CI] Update conda lock files"
	git push --set-upstream origin "conda-lock-$(sha256sum ${{ runner.temp }}/lock_file_hashes \| head -c 8)"
	# Create PR on GitHub using GitHub CLI.
	gh pr create --base main --title "[CI] Update conda lock files" \
	--body "Created automatically by GitHub Actions."

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