name: fmt

on:
  pull_request:
    branches:
      - main
    paths-ignore:
      - ".cirrus.yml"
      - "docs/*"
      - "ci/build-docs.sh"
      - "ci/generate-docs.py"
      - "ci/subst-release-info.py"
      - ".github/workflows/pages.yml"
      - ".github/workflows/verify-pages.yml"
      - ".github/ISSUE_TEMPLATE/*"
      - "**/*.md"
  push:
    branches:
      - main
    paths-ignore:
      - ".cirrus.yml"
      - "docs/**"
      - "ci/build-docs.sh"
      - "ci/generate-docs.py"
      - "ci/subst-release-info.py"
      - ".github/workflows/pages.yml"
      - ".github/workflows/verify-pages.yml"
      - ".github/ISSUE_TEMPLATE/*"
      - "**/*.md"

jobs:
  check-code-formatting:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: "Install Rust"
        uses: actions-rs/toolchain@v1
        with:
          profile: "minimal"
          toolchain: "nightly"
          override: true
          components: rustfmt
        env:
          ACTIONS_ALLOW_UNSECURE_COMMANDS: "true"
      - name: Build
        run: |
          source $HOME/.cargo/env
          cargo +nightly fmt --all -- --check