lambda-discipline.github.io/.github/workflows/deploy.yml at master · lambda-discipline/lambda-discipline.github.io · GitHub

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name: Deploy

# Rebuilds the site and publishes it to GitHub Pages. The daily run only
# rebuilds when the language repository has a commit the live site wasn't
# built from (the site's /build.json records it); pushes here and manual runs
# always rebuild.
on:
  schedule:
    - cron: "17 3 * * *"
  push:
    branches: [master]
  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write

concurrency:
  group: pages
  cancel-in-progress: false

env:
  UPSTREAM: https://github.com/lambda-discipline/lambda-discipline
  UPSTREAM_BRANCH: master
  SITE: https://lambda-discipline.github.io

jobs:
  check:
    name: Check for changes
    runs-on: ubuntu-latest
    outputs:
      build: ${{ steps.compare.outputs.build }}
    steps:
      - id: compare
        run: |
          upstream=$(git ls-remote "$UPSTREAM" "refs/heads/$UPSTREAM_BRANCH" | cut -f1)
          deployed=$(curl -fsSL "$SITE/build.json" | jq -r '.commit // empty' || true)
          echo "upstream: $upstream"
          echo "deployed: ${deployed:-none}"
          if [ "$GITHUB_EVENT_NAME" != "schedule" ] || [ "$upstream" != "$deployed" ]; then
            echo "build=true" >> "$GITHUB_OUTPUT"
          else
            echo "build=false" >> "$GITHUB_OUTPUT"
            echo "The site is already up to date." >> "$GITHUB_STEP_SUMMARY"
          fi

  build:
    name: Build
    needs: check
    if: needs.check.outputs.build == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - name: Clone the language repository
        run: git clone --depth 1 --branch "$UPSTREAM_BRANCH" "$UPSTREAM" .cache/lambda-discipline

      - name: Install Rust
        # Installs the version the language repository's rust-toolchain.toml asks for.
        working-directory: .cache/lambda-discipline
        run: rustup toolchain install

      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: .cache/lambda-discipline

      - uses: actions/setup-python@v7
        with:
          python-version: "3.13"
          cache: pip

      - run: pip install -r requirements.txt

      - name: Build the site
        run: python build.py --no-update

      - uses: actions/upload-pages-artifact@v5
        with:
          path: _site

  deploy:
    name: Deploy
    needs: build
    runs-on: ubuntu-latest
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - id: deployment
        uses: actions/deploy-pages@v5