main.yml

name: "Netlify Preview Deploy"

# Runs on all new PR actions
on:
  pull_request:
    types: ["opened", "edited", "synchronize"]
  push:
    branches:
      - main
  release:
    types: ["published"]

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          # Necessary to grab the HEAD commit from the source branch when
          # acting on a PR. Otherwise, `git log` will only contain the merge commit
          ref: ${{ github.event.pull_request.head.sha }}

      - uses: actions/setup-node@v1
        with:
          node-version: "16.x"

      - name: Build
        run: |
          yarn install --pure-lockfile --non-interactive
          yarn build

      - name: Create Deploy Message
        run: |
          # Grab branch path
          FULL_PATH_REF="${{ github.event.pull_request.head.ref || github.ref }}"

          # Strip "refs/heads/" from the start
          REF=${FULL_PATH_REF#refs\/heads\/}

          # Set it in env
          echo "REF=$REF" >> $GITHUB_ENV

          # Get the short form of the SHA
          SHA=$(git rev-parse --short ${{ github.event.pull_request.head.sha || github.sha }})

          # Set it in env
          echo "SHA=$SHA" >> $GITHUB_ENV

          # Yank the commit message from the log, using the SHA
          COMMIT_MSG=$(git log -n 1 --format=%s $SHA)

          # Set it in env
          echo "COMMIT_MSG=$COMMIT_MSG" >> $GITHUB_ENV

          # use the PR title or the commit message
          DEPLOY_MESSAGE="${{ github.event.pull_request.title || env.COMMIT_MSG }}"
          # Set it in env
          echo "DEPLOY_MESSAGE=$DEPLOY_MESSAGE" >> $GITHUB_ENV

        # Sets the branch name as environment variable
      - name: "Deploy"
        uses: nwtgck/actions-netlify@v1.2
        with:
          alias: deploy-preview-${{ github.head_ref }}-${{ env.SHA }}
          deploy-message: "${{ env.REF }}@${{ env.SHA }}: ${{ env.DEPLOY_MESSAGE }} (${{ github.workflow }} workflow)"
          github-token: ${{ secrets.GITHUB_TOKEN }}
          enable-commit-comment: true
          enable-pull-request-comment: true
          production-branch: "main"
          publish-dir: "_site_deploy"

        env:
          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}