pull-request.yml

name: CI
on:
  pull_request:
    types:
      # defaults
      - opened
      - synchronize
      - reopened
      - labeled
      - closed

permissions:
  contents: read
  pull-requests: write

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event.action == 'opened' }}
  cancel-in-progress: true

defaults:
  run:
    shell: bash

jobs:
# Build job
  build:
    name: Build Hugo
    runs-on: ubuntu-latest
    env:
      HUGO_VERSION: 0.100.1
    steps:
    - name: Install Hugo CLI
      if: ${{ github.event.pull_request.state != 'closed' }}
      run: |
        wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_Linux-64bit.deb \
        && sudo dpkg -i ${{ runner.temp }}/hugo.deb

    - name: Setup base URL env var
      run: |
        echo BASEURL="https://${{ github.repository_owner }}-${{ github.event.repository.name }}-${{ github.job }}-pr-${{ github.event.number }}.surge.sh" >> $GITHUB_ENV

    - name: Report base URL env var
      run: echo "${{ env.BASEURL }}"

    - name: Checkout
      if: ${{ github.event.pull_request.state != 'closed' }}
      uses: actions/checkout@v3
      with:
        submodules: recursive
        fetch-depth: 1

    - name: Build with Hugo
      if: ${{ github.event.pull_request.state != 'closed' }}
      env:
        # For maximum backward compatibility with Hugo modules
        HUGO_ENVIRONMENT: production
        HUGO_ENV: production
      run: |
        hugo \
          --baseURL "${{ env.BASEURL }}/"

    - uses: actions/setup-node@v3
      with:
        node-version: 16

    - run: npm install -g surge

    - name: Deploy to surge
      if: ${{ github.event.pull_request.state != 'closed' }}
      run: |
        surge ./public ${{ env.BASEURL }} --token ${{ secrets.SURGE_TOKEN }}

    - name: Remove from surge
      if: ${{ github.event.pull_request.state == 'closed' }}
      run: |
        surge teardown ${{ env.BASEURL }} --token ${{ secrets.SURGE_TOKEN }}

    - name: Run Summary
      if: ${{ github.event.pull_request.state != 'closed' }}
      run: echo "Preview available **[here](${{ env.BASEURL }})**" >> $GITHUB_STEP_SUMMARY

    - name: Add Comment to PR
      if: ${{ github.event.action == 'opened' || github.event.action == 'reopened' }}
      uses: actions/github-script@v6
      with:
        script: |
          github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: 'Preview available **[here](${{ env.BASEURL }})**'
          })