release.yml

name: Release

on:
  push:
    branches:
      - master

jobs:
  release:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          # Fetch git history with a depth of 50 commits so that Changesets can generate
          # changelogs with the correct commits information.
          # Note: this means that if we have merged >50 PRs since the last release,
          # the changelogs might not contain all correct information.
          # We could set `fetch-depth: 0`, but that would cause the entire history
          # to be cloned. Using 50 seems like a good balance to start with.
          fetch-depth: 50
          # Pass a personal access token (using our `ct-release-bot` account) to be able to trigger
          # other workflows
          # https://help.github.com/en/actions/reference/events-that-trigger-workflows#triggering-new-workflows-using-a-personal-access-token
          # https://github.community/t/action-does-not-trigger-another-on-push-tag-action/17148/8
          token: ${{ secrets.RELEASE_GITHUB_TOKEN }}

      - name: Read .nvmrc
        run: echo ::set-output name=NVMRC::$(cat .nvmrc)
        id: nvm

      - name: Setup Node (uses version in .nvmrc)
        uses: actions/setup-node@v1
        with:
          node-version: '${{ steps.nvm.outputs.NVMRC }}'

      - name: Get yarn cache
        id: yarn-cache
        run: echo "::set-output name=dir::$(yarn cache dir)"

      - uses: actions/cache@v1
        with:
          path: ${{ steps.yarn-cache.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-

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

      - name: Creating .npmrc
        run: |
          cat << EOF > "$HOME/.npmrc"
            email=npmjs@commercetools.com
            //registry.npmjs.org/:_authToken=$NPM_TOKEN
          EOF
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

      - name: Building packages
        run: yarn build

      - name: Create Release Pull Request or Publish to npm
        id: changesets
        uses: changesets/action@master
        with:
          publish: yarn changeset publish
        env:
          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}

      # Publish canary releases only if the packages weren't published already
      - name: Publishing canary releases to npm registry
        if: steps.changesets.outputs.published != 'true'
        run: |
          git checkout master
          yarn changeset version --snapshot canary
          yarn changeset publish --tag canary
        env:
          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}