Add Test PyPI action to GitHub Publishing Workflow #14

	---
	name: Building & Publishing to Test PyPI

	on:
	push:
	branches: "main"
	pull_request:
	types: [ labeled ]

	permissions:
	contents: read

	jobs:
	make_tag_and_publish:
	runs-on: ubuntu-latest

	# We want a new tag to be made ONLY if we are ready to release to Test PyPI.
	# I.e. A MERGE has been made into @spacetelescope/astrocut/main
	if: github.event.pull_request.labels.*.name == 'publish-to-test' \|\| (github.repository_owner == 'spacetelescope' && github.event_name == 'push')
	steps:
	- name: Git checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Make the test.pypi release tag
	run: \|
	git config user.name github-actions
	git config user.email [email protected]
	git tag v0.10.0.dev3
	- uses: actions/setup-python@v2
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install setuptools wheel twine
	- name: Build and publish
	env:
	TWINE_USERNAME: __token__
	TWINE_PASSWORD: ${{ secrets.TEST_PYPI_TOKEN }}
	run: \|
	python setup.py sdist bdist_wheel
	twine upload --repository-url https://test.pypi.org/legacy/ dist/*

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