publish.yml

name: Publish
on:
  push:
    branches:
      - master

jobs:
  publish_to_npm:
    name: Publish to NPM
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v1
        with:
          node-version: "10.x"
          registry-url: "https://registry.npmjs.org"

      - name: Check if version bump
        id: check
        uses: EndBug/version-check@v1.1.1

      - name: Log when unchanged
        if: steps.check.outputs.changed != 'true'
        run: echo "No version change"

      - name: Install deps
        if: steps.check.outputs.changed == 'true'
        run: yarn
        env:
          CI: true

      - name: Build
        if: steps.check.outputs.changed == 'true'
        run: yarn build
        env:
          CI: true

      - name: Set NPM Token
        if: steps.check.outputs.changed == 'true'
        uses: filipstefansson/set-npm-token-action@v1
        with:
          token: ${{ secrets.NPM_TOKEN }}

      - name: Publish new version
        if: steps.check.outputs.changed == 'true'
        run: npm publish
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}