deploy-action.yml

name: 'Deploy App Workflow'
on:
  workflow_call:
    inputs:
      environment:
        required: true
        type: string
      branch:
        required: true
        type: string
    secrets:
      app_env:
        required: true
      vercel_token:
        required: true
      org_id:
        required: true
      project_id:
        required: true

jobs:
  deploy-app:
    runs-on: ubuntu-latest
    environment:
      name: ${{ inputs.environment }}
      url: ${{ steps.vercel_deploy.outputs.VERCEL_URL }}
    concurrency:
      cancel-in-progress: true
      group: ${{ inputs.environment }}
    env:
      VERCEL_ORG_ID: ${{ secrets.org_id }}
      VERCEL_PROJECT_ID: ${{ secrets.project_id }}
      VERCEL_DOMAIN: t3-stack-app.vercel.app
    steps:
      - name: Checkout ${{ inputs.branch }} branch
        uses: actions/checkout@v4
        with:
          ref: ${{ inputs.branch }}

      - uses: pnpm/action-setup@v2
        with:
          version: 7.0.1

      - uses: actions/setup-node@v4
        with:
          node-version: 16.15.0
          cache: 'pnpm'

      - name: Set node environment variables
        run: echo ${{ secrets.app_env }} | openssl base64 -d -A -out .env

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

      - name: Deploy to Vercel
        id: vercel_deploy
        run: |
          environment=""
          prod_flag=""
          vercel_url=""

          # set vercel_url based on environment
          if [[ "${{ inputs.environment }}" == "dev" ]]
          then
            vercel_url="develop-$VERCEL_DOMAIN"
          elif [[ "${{ inputs.environment }}" == "staging" ]]
          then
            vercel_url="staging-$VERCEL_DOMAIN"
          elif [[ "${{ inputs.environment }}" == "production" ]]
          then
            vercel_url="$VERCEL_DOMAIN"
            environment="--environment=production"
            prod_flag="--prod"
          fi

          # pull request deploy preview
          if [[ "${{ github.event_name }}" == "pull_request" ]] && [[ "${{ github.base_ref }}" == "develop" ]]
          then
            vercel_url="develop-${{ github.event.pull_request.number }}-$VERCEL_DOMAIN"
            environment="--environment=preview"

            # set PR deploy preview url
            echo "PR_PREVIEW_URL=https://${vercel_url}" >> $GITHUB_OUTPUT
          fi

          # show derived parameters
          echo environment: $environment
          echo prod_flag: $prod_flag
          echo vercel_url: $vercel_url

          # start vercel deployment

          pnpm vercel --token=${{ secrets.vercel_token }} pull --yes $environment

          # on project setup, override the following
          # - build command in vercel with `next build --no-lint` to disable linting or `pnpm build`
          # - install command as empty to disable installation in vercel build command
          pnpm vercel --token=${{ secrets.vercel_token }} build $prod_flag

          pnpm vercel --token=${{ secrets.vercel_token }} deploy --prebuilt $prod_flag > domain.txt

          # use --scope=$VERCEL_TEAM_ID if you're using vercel teams
          if [[ "${{ inputs.environment }}" != "production" ]]
          then
            pnpm vercel --token=${{ secrets.vercel_token }} alias set `cat domain.txt` $vercel_url
          fi

          # set vercel preview url as job output url
          if [[ "${{ github.event_name }}" != "pull_request" ]]
          then
            echo Set Environment URL
            echo "VERCEL_URL=https://${vercel_url}" >> $GITHUB_OUTPUT
          fi

      - name: Comment deploy preview URL
        uses: thollander/actions-comment-pull-request@v2
        if: |
          github.event_name == 'pull_request' &&
          github.base_ref == 'develop'
        with:
          message: |
            :white_check_mark: Preview
            ${{ steps.vercel_deploy.outputs.PR_PREVIEW_URL }}

            Built with commit ${{ github.event.pull_request.head.sha }}.
          comment_tag: execution
          pr_number: ${{ github.event.pull_request.number }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}