add gh action: auto build and update changelog #1

	name: Build and Update Changelog

	on:
	push:
	branches:
	- '**'

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Use Node.js
	uses: actions/setup-node@v2
	with:
	node-version: '14'

	- name: Install dependencies
	run: yarn install

	- name: Build
	run: yarn build

	- name: Generate Changelog
	uses: github-changelog-generator/github-changelog-generator@master
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	output: CHANGELOG.md
	base: ''
	header-label: '# Changelog'
	unreleased: true
	compare-link: true
	future-release: vNext

	- name: Commit changes
	run: \|
	git config --local user.email "[email protected]"
	git config --local user.name "GitHub Action"
	git add CHANGELOG.md
	git commit -m "Update CHANGELOG.md" && git push origin \|\| echo "No changes to commit"

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