name: CI

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

env:
  CARGO_TERM_COLOR: always

jobs:
  pages:
    name: Building and Deployment
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          submodules: true
          fetch-depth: 1
      - name: Cache cargo binaries and registry
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/book.toml') }}
      - name: Install mdbook
        continue-on-error: true
        run: |
          cargo install mdbook || exit 0
      - name: Check toolchain version
        run: |
          rustc -V
          cargo -V
          mdbook -V
      - name: Build book
        run: |
          mdbook build
      - name: Copy metadata files
        run: |
          cp ./assets/CNAME ./book/
          cp ./assets/*.html ./book/
          cp ./assets/sitemap.xml ./book/
      - name: Deploy to Github Pages
        uses: peaceiris/actions-gh-pages@v3
        if: ${{ github.ref == 'refs/heads/main' }}
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./book
          force_orphan: true
          user_name: 'github-actions[bot]'
          user_email: 'github-actions[bot]@users.noreply.github.com'
          commit_message: ${{ github.event.head_commit.message }}