👷 Add CI pipeline for package publishing #1

	name: Build and publish npm package

	on:
	push:
	branches:
	- main
	tags:
	- '*'
	pull_request:
	workflow_dispatch:

	jobs:
	build:
	name: Create build
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v3
	with:
	node-version-file: '.nvmrc'
	cache: npm

	- name: Install dependencies
	run: npm ci

	- name: Build library
	run: \|
	npm run build

	- name: Store build artifact
	uses: actions/upload-artifact@v3
	with:
	name: build
	path: build/
	retention-days: 1

	publish:
	name: Publish the NPM package
	runs-on: ubuntu-latest
	needs:
	- build

	# do not publish in forks or non-tag pushes
	if: startsWith(github.ref, 'refs/tags/') && github.repository_owner == 'open-formulieren'

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v3
	with:
	node-version-file: '.nvmrc'
	cache: npm
	registry-url: 'https://registry.npmjs.org'
	scope: '@open-formulieren'

	- name: Download build artifact
	uses: actions/download-artifact@v3
	with:
	name: build
	path: build/

	- name: Publish package to NPM
	run: \|
	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')

	npm publish --access public --new-version=$VERSION
	env:
	NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

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