Publish to npm #1

	name: Publish to npm

	on:
	release:
	types: [published]

	concurrency:
	group: npm-publish-${{ github.event.release.tag_name }}
	cancel-in-progress: false

	permissions:
	contents: read
	id-token: write

	jobs:
	publish:
	runs-on: ubuntu-latest

	steps:
	- name: Check out repository
	uses: actions/checkout@v5

	- name: Set up Node.js
	uses: actions/setup-node@v6
	with:
	node-version: 22.22.1
	registry-url: https://registry.npmjs.org
	cache: yarn

	- name: Set up Yarn
	run: \|
	corepack enable
	corepack prepare yarn@1.22.22 --activate

	- name: Upgrade npm
	run: npm install -g npm@latest

	- name: Show tool versions
	run: \|
	node --version
	npm --version
	yarn --version

	- name: Verify release tag matches package.json version
	shell: bash
	run: \|
	PKG_VERSION=$(node -p "require('./package.json').version")
	TAG_VERSION="${GITHUB_REF_NAME#v}"

	echo "package.json: $PKG_VERSION"
	echo "release tag: $TAG_VERSION"

	test "$PKG_VERSION" = "$TAG_VERSION"

	- name: Check if version already exists on npm
	shell: bash
	run: \|
	PACKAGE_NAME=$(node -p "require('./package.json').name")
	PACKAGE_VERSION=$(node -p "require('./package.json').version")

	if npm view "${PACKAGE_NAME}@${PACKAGE_VERSION}" version >/dev/null 2>&1; then
	echo "Version already published: ${PACKAGE_NAME}@${PACKAGE_VERSION}"
	exit 1
	fi

	- name: Install dependencies
	run: yarn install --frozen-lockfile

	- name: Build package
	run: yarn build

	- name: Inspect publish contents
	run: npm pack --dry-run

	- name: Publish package
	run: npm publish --access public

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