update: v4.0.8.1 #9

	name: Publish on version change

	on:
	push:
	branches:
	- main
	paths:
	- pyproject.toml

	jobs:
	publish:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Detect version change
	id: version_check
	run: \|
	python - <<'PY'
	import os
	import subprocess
	import sys
	import tomllib

	def read_version_from_text(text: str) -> str:
	data = tomllib.loads(text)
	project = data.get("project", {})
	if "version" in project:
	return project["version"]
	tool_poetry = data.get("tool", {}).get("poetry", {})
	return tool_poetry["version"]

	with open("pyproject.toml", "rb") as f:
	current = read_version_from_text(f.read().decode("utf-8"))

	before = os.environ.get("GITHUB_EVENT_BEFORE", "")
	if not before or before == "0000000000000000000000000000000000000000":
	print("publish=true", file=open(os.environ["GITHUB_OUTPUT"], "a"))
	sys.exit(0)

	try:
	previous_text = subprocess.check_output(
	["git", "show", f"{before}:pyproject.toml"],
	text=True,
	)
	previous = read_version_from_text(previous_text)
	except Exception:
	print("publish=true", file=open(os.environ["GITHUB_OUTPUT"], "a"))
	sys.exit(0)

	publish = "true" if current != previous else "false"
	with open(os.environ["GITHUB_OUTPUT"], "a") as f:
	print(f"publish={publish}", file=f)
	PY
	env:
	GITHUB_EVENT_BEFORE: ${{ github.event.before }}
	- name: Install Poetry
	if: steps.version_check.outputs.publish == 'true'
	run: pipx install poetry
	- name: Publish
	if: steps.version_check.outputs.publish == 'true'
	env:
	POETRY_PYPI_TOKEN_PYPI: ${{ secrets.PYPI_TOKEN }}
	run: poetry publish --build

Provide feedback