name: lint

on:
  pull_request:
  merge_group:
  push:
    branches: [main]

env:
  CARGO_TERM_COLOR: always

jobs:
  clippy:
    name: clippy
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@clippy
        with:
          toolchain: nightly-2023-10-29
      - uses: Swatinem/rust-cache@v2
        with:
          cache-on-failure: true
      - run: cargo clippy --workspace --all-targets --all-features
        env:
          RUSTFLAGS: -D warnings

  docs:
    name: docs
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
      - uses: Swatinem/rust-cache@v2
        with:
          cache-on-failure: true
      - run: cargo docs --document-private-items
        env:
          # Keep in sync with ./book.yml:jobs.build
          # This should only add `-D warnings`
          RUSTDOCFLAGS:
            --cfg docsrs --show-type-layout --generate-link-to-definition --enable-index-page
            -Zunstable-options -D warnings

  fmt:
    name: fmt
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
        with:
          components: rustfmt
      - run: cargo fmt --all --check

  grafana:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4
      - name: Check dashboard JSON with jq
        uses: sergeysova/jq-action@v2
        with:
          cmd: jq empty etc/grafana/dashboards/overview.json

  lint-success:
    name: lint success
    runs-on: ubuntu-latest
    if: always()
    needs: [clippy, docs, fmt, grafana]
    timeout-minutes: 30
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@release/v1
        with:
          jobs: ${{ toJSON(needs) }}