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xval-end-to-end #92

	name: Build & Publish to PyPI (main)

	on:
	push:
	branches: [ main ]

	jobs:
	build-and-publish:
	runs-on: ubuntu-latest
	environment: pypi
	permissions:
	id-token: write

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: "3.11"

	- name: Verify version is new on PyPI
	run: \|
	python - <<'PY'
	import json, sys, urllib.request, tomllib, pathlib
	pp = pathlib.Path("UnitMatchPy/pyproject.toml")
	data = tomllib.loads(pp.read_text(encoding="utf-8"))
	current = data["project"]["version"]
	pkg = data["project"]["name"]
	latest = None
	try:
	with urllib.request.urlopen(f"https://pypi.org/pypi/{pkg}/json", timeout=10) as r:
	info = json.load(r)
	latest = info["info"]["version"]
	except Exception:
	pass
	print(f"Current version: {current}; PyPI latest: {latest}")
	if latest is not None and current == latest:
	print(f"ERROR: {pkg} {current} already exists on PyPI. Bump [project].version in UnitMatchPy/pyproject.toml.", file=sys.stderr)
	sys.exit(1)
	PY

	- name: Install build tool
	run: python -m pip install --upgrade pip build

	- name: Build sdist/wheel (subdir)
	working-directory: UnitMatchPy
	run: python -m build

	- name: Publish to PyPI (OIDC)
	uses: pypa/gh-action-pypi-publish@release/v1
	with:
	packages-dir: UnitMatchPy/dist
	# Optional: keep this if you want success even when you forgot the bump
	# skip-existing: true