Merge pull request #86 from llblab/dev #28

	name: Release

	on:
	push:
	tags:
	- "v..*"

	permissions:
	contents: write

	jobs:
	release:
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Build release notes from changelog
	env:
	TAG_NAME: ${{ github.ref_name }}
	run: \|
	node --input-type=module <<'NODE'
	import { readFileSync, writeFileSync } from "node:fs";
	const tagName = process.env.TAG_NAME;
	const version = tagName?.replace(/^v/, "");
	if (!version) throw new Error("Missing release tag name.");
	const packageJson = JSON.parse(readFileSync("package.json", "utf8"));
	if (packageJson.version !== version) {
	throw new Error(`Tag ${tagName} does not match package.json version ${packageJson.version}.`);
	}
	const changelog = readFileSync("CHANGELOG.md", "utf8");
	const escapedVersion = version.replace(/[.*+?^${}()\|[\]\\]/g, "\\$&");
	const pattern = new RegExp(`^##\\s+(${escapedVersion}(?:[^\\n])?)\\n([\\s\\S]?)(?=^##\\s+\|(?![\\s\\S]))`, "m");
	const match = changelog.match(pattern);
	if (!match) throw new Error(`CHANGELOG.md has no section for ${version}.`);
	const title = match[1].trim();
	const notes = match[2].trim();
	if (!notes) throw new Error(`CHANGELOG.md section for ${version} is empty.`);
	writeFileSync("release-title.txt", `${title}\n`);
	writeFileSync("release-notes.md", `${notes}\n`);
	NODE
	- name: Publish GitHub release
	env:
	GH_TOKEN: ${{ github.token }}
	TAG_NAME: ${{ github.ref_name }}
	run: \|
	gh release create "$TAG_NAME" \
	--title "$(cat release-title.txt)" \
	--notes-file release-notes.md \
	--verify-tag

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