Add release.yaml GitHub action #2

	name: Release to PyPI

	on:
	push:
	tags:
	- "v*"

	jobs:
	release:
	name: Build and publish to PyPI
	runs-on: ubuntu-latest

	steps:
	- name: Check out code
	uses: actions/checkout@v4.2.2

	- name: Validate version matches tag
	run: \|
	TAG_VERSION="${GITHUB_REF#refs/tags/v}"
	echo "Tag version: $TAG_VERSION"

	FILE_VERSION=$(grep -Po '(?<=^version = ")[^"]+' pyproject.toml)
	echo "File version: $FILE_VERSION"

	if [ "$TAG_VERSION" != "$FILE_VERSION" ]; then
	echo "ERROR: Tag version ($TAG_VERSION) does not match pyproject.toml version ($FILE_VERSION)"
	exit 1
	fi

	- name: Set up Python
	uses: actions/setup-python@v5.4.0
	with:
	python-version: "3.12"

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

	- name: Build distribution
	run: python -m build

	- name: Publish to PyPI
	env:
	TWINE_USERNAME: __token__
	TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
	run: twine upload dist/*

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