name: Build and Update GitHub Page Branch
on:
  push:
    branches:
      - "master"

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout gh-pages
        uses: actions/checkout@v2.3.1
        with:
          ref: gh-pages

      - name: Load submodules
        run: |
          git submodule set-url icons $GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git
          git submodule init
          git submodule update --recursive

      - name: Update submodule icons to the current commit
        run: |
          pushd icons
          git checkout ${{ github.sha }}
          git status
          popd

      - name: Build index.html (Icon List)
        run: |
          echo "::debug::Using `python3 -V`"
          python3 buildIconList.py

      - name: Perform npm install and gulp
        run: |
          pushd sources
          npm ci
          npx gulp
          popd

      - name: Commit and push
        run: |
          git fetch --all
          echo "::debug::Author: $GITHUB_ACTOR";
          echo "::debug::Author Email: `git show -s --format='%ae' ${{ github.sha }}`";
          git config --global user.name "$GITHUB_ACTOR"
          git config --global user.email `git show -s --format='%ae' ${{ github.sha }}`
          git commit -asm "GitHub Page Build for ${{ github.sha }}" --allow-empty
          git push origin gh-pages