name: "On README change"

on:
  push:
    branches:
      - master
    paths:
      - "README.md"

jobs:

  build10:
    name: "Check TOC, autogenerate and commit it into the PR"
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
      - name: "Install doctoc"
        run: |
          sudo npm install -g doctoc
      - uses: actions/checkout@v2
        with:
          # 2020-09-29: Official doc:
          # "In non-push events, such as pull_request, make sure to specify the ref to checkout:'
          ref: ${{ github.head_ref }}
      - name: "Generate the idenpotent TOC"
        run: |
          doctoc --github --notitle README.md
      - name: "Commit and push changes"
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_author: "Anton Latukha <anton@latukha.com>"
          commit_message: "[auto] upd README TOC"
          file_pattern: "README.md"