name: Zola on GitHub Pages

on:
  push:
    branches:
      - master
    paths:
      - docs/**
  pull_request:
    paths:
      - docs/**

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/master'
    steps:
      - name: Checkout main
        uses: actions/checkout@v4
      - name: Build only 
        uses: shalzz/zola-deploy-action@v0.18.0
        env:
          BUILD_DIR: docs
          BUILD_ONLY: true
          BUILD_FLAGS: --drafts
          # A GitHub token is not necessary when BUILD_ONLY is true
          # GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          
  build_and_deploy:
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/master'
    permissions:
      # 推送 gh-pages 分支需要写权限
      contents: write
    steps:
      - name: Checkout main
        uses: actions/checkout@v4
      - name: Build and deploy
        uses: shalzz/zola-deploy-action@v0.18.0
        env:
          BUILD_DIR: docs
          PAGES_BRANCH: gh-pages
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}