deploy.yml

name: Deploy VitePress

# 推到 main 即自动构建,产物作为一次性 artifact 部署到 GitHub Pages(不提交进任何分支)。
# 首次使用前:仓库 Settings → Pages → Source 必须选「GitHub Actions」(非 Deploy from a branch)。
on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write   # deploy-pages 经 OIDC 验证部署来源,必需

# 同一时间只跑一个部署,排队中的不取消,保证最新一次一定部署成功
concurrency:
  group: pages
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0   # lastUpdated: true 需要完整 git 历史

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 10

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: pnpm

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

      - name: Restore build cache
        uses: actions/cache@v4
        with:
          path: site/.vitepress/.build-cache
          key: vitepress-build-${{ runner.os }}-${{ hashFiles('documents/**', 'site/.vitepress/config/**', 'site/.vitepress/plugins/**', 'site/.vitepress/public/**', 'site/.vitepress/theme/**', 'scripts/build.ts', 'package.json', 'pnpm-lock.yaml') }}
          restore-keys: |
            vitepress-build-${{ runner.os }}-
            vitepress-build-

      - name: Setup Pages
        uses: actions/configure-pages@v5

      - name: Build
        run: pnpm build
        env:
          NODE_OPTIONS: --max-old-space-size=6144   # 分卷并行构建仍需较大堆,防 OOM
          BUILD_CONCURRENCY: 8

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: site/.vitepress/dist

  deploy:
    needs: build
    runs-on: ubuntu-latest
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4