build-and-commit.yml

name: Build and commit PDFs

on: 
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Set up Git repository
        uses: actions/checkout@v2
        with:
          submodules: recursive
      - name: Compile LaTeX document
        uses: xu-cheng/texlive-action/full@v1
        with:
          run: |
            apk add make
            make all
      - name: Commit generated PDFs
        run: |
          mkdir -p docs
          cp lecture-notes.pdf docs/
          cp chapters/*.pdf docs/
          git add docs/*.pdf
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          git commit -m "Generated PDFs"
      - name: Commit changes
        uses: ad-m/github-push-action@master
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          branch: "pdf-build"
          force: true