deploy.yml

name: Build and Deploy

on:
  push:
    branches:
      - main
  release:
    branch: main
    types: [released]

jobs:
  build-pyodide:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Check the Pyodide version
        run: |
          echo "PYODIDE_SHA_SHORT=$(git submodule status pyodide | cut -c 2-8)" >> $GITHUB_ENV

      - name: Cache the Pyodide build
        uses: actions/cache@v4
        with:
          path: ./pyodide
          key: pyodide-${{ github.ref }}-${{ env.PYODIDE_SHA_SHORT }}
          restore-keys: |
            pyodide-${{ github.ref }}-${{ env.PYODIDE_SHA_SHORT }}
            pyodide-${{ github.ref }}
            pyodide-refs/heads/main

      - name: Ensure that the Pyodide source files are fresh
        run: |
          cd pyodide
          git status
          git diff --name-only | xargs git checkout --
          git clean -df
          echo ======
          git status

      - name: Cache the Pyodide Docker image
        uses: ScribeMD/docker-cache@0.5.0
        with:
          key: docker-pyodide-${{ hashFiles('pyodide/Dockerfile') }}

      - name: Discover the cached Pyodide Docker image
        run: echo "PYODIDE_DOCKER_IMAGE=$(docker images climet-eu/pyodide --format '{{.ID}}')" >> $GITHUB_ENV

      - name: Build the Pyodide Docker image
        if: ${{ env.PYODIDE_DOCKER_IMAGE == '' }}
        run: |
          cd pyodide
          docker build -t climet-eu/pyodide .
          echo "PYODIDE_DOCKER_IMAGE=$(docker build . -q)" >> $GITHUB_ENV

      - name: Build Pyodide and all required packages
        run: |
          cd pyodide
          ./run_docker \
            --non-interactive \
            PYODIDE_PACKAGES="$(cat ../venv/packages.txt | paste -sd "," -)" \
            make

      - name: Clean up the Pyodide build
        run: |
          python tools/clean-dist.py pyodide/dist
          cd pyodide
          find . -name jupyter-lite.json -delete
          find . -name jupyter_lite_config.json -delete
          rm -f dist/tsconfig.tsbuildinfo
          mkdir -p packages/numpy/build
          touch packages/numpy/build/ls-success
          ls -d packages/*/build/* | xargs rm -r

      - name: Upload the pyodide-lock.json artifact
        uses: actions/upload-artifact@v4
        with:
          name: pyodide-lock.json
          path: pyodide/dist/pyodide-lock.json
          retention-days: 1

      - name: Upload the Pyodide distribution artifact
        uses: actions/upload-artifact@v4
        with:
          name: pyodide
          path: pyodide/dist
          retention-days: 1

      - name: Remove the uploaded Pyodide distribution
        run: rm -rf pyodide/dist

  build-pypa:
    runs-on: ubuntu-latest
    needs: build-pyodide
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Download the pyodide-lock.json artifact
        uses: actions/download-artifact@v4
        with:
          name: pyodide-lock.json
          path: pyodide/dist

      - name: Extract the PyPa simple repository API
        run: python tools/pypa-simple.py pypa/simple ../../../static/pyodide/

      - name: Upload the PyPa repository artifact
        uses: actions/upload-artifact@v4
        with:
          name: pypa
          path: pypa
          retention-days: 1

  build-lock:
    runs-on: ubuntu-latest
    needs: [build-pyodide, build-pypa]
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Cache the Pyodide Docker image
        uses: ScribeMD/docker-cache@0.5.0
        with:
          key: docker-pyodide-${{ hashFiles('pyodide/Dockerfile') }}
          read-only: true

      - name: Discover the cached Pyodide Docker image
        run: echo "PYODIDE_DOCKER_IMAGE=$(docker images climet-eu/pyodide --format '{{.ID}}')" >> $GITHUB_ENV

      - name: Download the Pyodide distribution artifact
        uses: actions/download-artifact@v4
        with:
          name: pyodide
          path: pyodide/static/pyodide

      - name: Download the PyPa repository artifact
        uses: actions/download-artifact@v4
        with:
          name: pypa
          path: pyodide/pypa

      - name: Extract the PyPi-enabled pyodide-lock.json
        run: |
          cp venv/requirements.txt pyodide/my-requirements.txt
          cp tools/pypi-lock.mjs pyodide/static/pyodide/pypi-lock.mjs
          cd pyodide
          ./run_docker --non-interactive python -m http.server "&" node static/pyodide/pypi-lock.mjs my-requirements.txt pyodide-lock.json

      - name: Upload the PyPi pyodide-lock.json artifact
        uses: actions/upload-artifact@v4
        with:
          name: pypi-pyodide-lock.json
          path: pyodide/pyodide-lock.json
          retention-days: 1

  check-venv:
    runs-on: ubuntu-latest
    needs: build-lock
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12.7"

      - name: Install PyYAML
        run: pip install PyYAML

      - name: Download the PyPi pyodide-lock.json artifact
        uses: actions/download-artifact@v4
        with:
          name: pypi-pyodide-lock.json
          path: pyodide/dist

      - name: Extract the requirements from the Pyodide build
        run: python tools/requirements.py

      - name: Check that the venv requirements are up-to-date
        run: git diff --exit-code ./venv/

      - name: Check the requirements.txt file
        continue-on-error: ${{ github.event_name != 'release' }}
        run: |
          python -m venv .venv
          source .venv/bin/activate
          pip install --upgrade pip
          pip install -r venv/requirements.txt --dry-run --ignore-installed
          deactivate
          rm -rf .venv

      - name: Check the validity of the constraints.txt and requirements.in files
        continue-on-error: ${{ github.event_name != 'release' }}
        run: |
          python -m venv .venv
          source .venv/bin/activate
          pip install --upgrade pip
          pip install -r venv/constraints.txt -r venv/requirements.in --dry-run --ignore-installed
          deactivate
          rm -rf .venv

  build-jupyterlite:
    runs-on: ubuntu-latest
    needs: [build-pyodide, build-pypa, build-lock]
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12.7"

      - name: Install the dependencies
        run: |
          pip install -r requirements.txt

      - name: Prepare the JupyterLite input files
        run: |
          mkdir -p files
          cp ./README.md files/
          cp venv/constraints.txt venv/requirements.in venv/requirements.txt files/

          mkdir -p static

      - name: Download the Pyodide distribution artifact
        uses: actions/download-artifact@v4
        with:
          name: pyodide
          path: static/pyodide

      - name: Download the PyPi pyodide-lock.json artifact
        uses: actions/download-artifact@v4
        with:
          name: pypi-pyodide-lock.json
          path: static/pyodide

      - name: Build the JupyterLite site
        run: |
          jupyter lite build --output-dir staging
          cp static/favicons/favicon.ico staging/
          find staging/ -name favicon.ico | xargs -L1 cp -f static/favicons/favicon.ico

      - name: Download the PyPa repository artifact
        uses: actions/download-artifact@v4
        with:
          name: pypa
          path: staging/pypa

      - name: Upload the JupyterLite artifact
        uses: actions/upload-artifact@v4
        with:
          name: jupyterlite
          path: staging
          retention-days: 1

  deploy:
    permissions:
      contents: write
    runs-on: ubuntu-latest
    needs: [build-jupyterlite, check-venv]
    steps:
      - name: Get the current branch name
        uses: tj-actions/branch-names@v8
        id: branch

      - name: Compute the current version name
        run: echo "CLIMETLAB_VERSION=${{ steps.branch.outputs.current_branch || steps.branch.outputs.tag }}" >> $GITHUB_ENV

      - name: Checkout the previous dist branch
        uses: actions/checkout@v4
        with:
          ref: dist
          path: dist
        continue-on-error: ${{ github.event_name != 'release' }}

      - name: Prepare merging the different dist versions
        run: |
          mkdir -p dist
          rm -rf dist/${{ env.CLIMETLAB_VERSION }}

      - name: Download the JupyterLite artifact into the dist
        uses: actions/download-artifact@v4
        with:
          name: jupyterlite
          path: dist/${{ env.CLIMETLAB_VERSION }}

      - name: Deploy to dist branch
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_branch: dist
          publish_dir: ./dist
          keep_files: false
          force_orphan: true