ci.yml

name: CI

permissions:
  contents: read

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  build-native:
    name: Build and Test (Native)
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Set up Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Cache dependencies
        uses: Swatinem/rust-cache@v2

      - name: Build workspace
        run: cargo build --all-targets --workspace

      - name: Run tests
        run: cargo test --workspace

  doc:
    name: Deploy Docs to GitHub Pages
    runs-on: ubuntu-latest
    needs: build-native
    # Only publish from main; PRs are validated by build-native only.
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    permissions:
      contents: read
      pages: write
      id-token: write
    # Serialize Pages deployments without gating the rest of CI.
    concurrency:
      group: pages
      cancel-in-progress: false
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Set up Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Build Documentation
        run: cargo doc --workspace

      # Serve the rustdoc output under /docs/ to preserve existing URLs.
      - name: Stage site
        run: |
          mkdir -p _site/docs
          cp -r target/doc/. _site/docs/

      - name: Upload Pages artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: _site

      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4