name: Verify Makefile
on:
  push:
    branches:
      - main
    paths:
      - README.md
      - README.tpl
      - src/main.rs
      - Cargo.toml
  pull_request:
    branches:
      - main
    paths:
      - README.md
      - README.tpl
      - src/main.rs
      - Cargo.toml
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          override: true
          profile: minimal
      - uses: actions-rs/install@v0.1
        with:
          crate: cargo-readme
          version: latest
          use-tool-cache: true
      - run: cargo readme --no-indent-headings --output README.md
      # This will verify that cargo readme did not do anything
      # If it did, the CI should fail, because the README is outdated
      - run: git diff --exit-code