doc.yml

name: Deploy MkDocs with Mike

on:
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - name: Install Dependencies
        run: |
          pip install --upgrade pip
          pip install -e.[doc]

      - name: Extract Major Version
        id: version
        run: |
          python <<EOF > version.txt
          from grid_reducer.version import VERSION
          major = VERSION.split(".")[0]
          minor = VERSION.split(".")[1]
          print(f"{major}.{minor}")
          EOF
          echo "DOC_VERSION=$(cat version.txt)" >> $GITHUB_ENV

      - name: Configure Git
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "github-actions@github.com"

      - name: Delete Existing Version (If Exists)
        run: |
          git fetch origin gh-pages
          mike delete $DOC_VERSION --push || echo "No existing version $DOC_VERSION to delete"

      - name: Deploy Site with Mike
        run: |
          mike deploy --push --update-aliases $DOC_VERSION latest

      - name: Set Default Version (Optional)
        run: |
          mike set-default --push latest

      - name: Prune Old Versions (Keep Last 10)
        run: |
          mike list --json > versions.json || echo "⚠️ Warning: mike list failed or returned no data"
          cat versions.json
          python <<EOF
          import json
          import subprocess
          import os

          try:
            with open("versions.json") as f:
                versions = json.load(f)

            version_names = [v["version"] for v in versions if not v.get("alias", False)]

            if len(version_names) > 10:
                to_delete = version_names[:-10]
                for v in to_delete:
                    print(f"🗑️ Deleting old version: {v}")
                    subprocess.run(["mike", "delete", v, "--push"], check=False)
            else:
                print("✅ Less than or equal to 10 versions. No deletion needed.")
          except Exception as e:
              print("❌ Error during pruning:", str(e))
          EOF