name: Tangle Code

on:
  workflow_dispatch:
  push:
    paths:
      - 'README.org'

permissions:
      contents: write

jobs:
  tangle:
    runs-on: ubuntu-latest
    steps:
      - name: Setup Emacs
        uses: purcell/setup-emacs@master
        with:
          version: snapshot
      - name: Checkout
        uses: actions/checkout@v4
      - name: Tangle
        run: emacs README.org --batch --eval "(setq org-confirm-babel-evaluate nil)" --eval "(progn (require 'org) (org-babel-goto-named-src-block \"startup\") (org-babel-execute-src-block))" -f org-babel-tangle
      - name: Commit
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: Tangle files from the README.