Build and Publish Python Package #21

	name: Build and Publish Python Package

	on:
	workflow_dispatch:
	inputs:
	version:
	description: 'Version to release'
	required: true
	type: string

	jobs:
	build:
	name: Build Python distribution
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install build wheel twine

	- name: Build package
	run: python setup.py sdist bdist_wheel

	- name: Check if package version already exists
	run: \|
	PACKAGE_NAME=$(python setup.py --name)
	PACKAGE_VERSION=${{ github.event.inputs.version }}
	if twine check dist/*; then
	if pip install $PACKAGE_NAME==$PACKAGE_VERSION; then
	echo "Error: Version $PACKAGE_VERSION of $PACKAGE_NAME already exists on PyPI"
	exit 1
	else
	echo "Version $PACKAGE_VERSION of $PACKAGE_NAME does not exist on PyPI. Proceeding with upload."
	fi
	else
	echo "Error: Twine check failed."
	exit 1
	fi

	- name: Upload artifact
	uses: actions/upload-artifact@v3
	with:
	name: dist
	path: dist/

	approve-and-publish:
	needs: build
	runs-on: ubuntu-latest
	environment: release
	permissions:
	contents: read
	id-token: write

	steps:
	- name: Download artifact
	uses: actions/download-artifact@v3
	with:
	name: dist
	path: dist/

	- name: Publish package distributions to PyPI
	uses: pypa/gh-action-pypi-publish@release/v1
	with:
	verbose: true
	print-hash: true

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