ci.yml

name: CI

on:
  merge_group:
  pull_request:
  workflow_dispatch:

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always

jobs:
  maybe-expedite:
    outputs:
      value: ${{ steps.expedite.outputs.value }}

    runs-on: ubuntu-latest

    steps:
      - name: Log github refs
        run: |
          echo '```' >> "$GITHUB_STEP_SUMMARY"
          echo 'github.ref: ${{ github.ref }}' >> "$GITHUB_STEP_SUMMARY"
          echo 'github.sha: ${{ github.sha }}' >> "$GITHUB_STEP_SUMMARY"
          echo '```' >> "$GITHUB_STEP_SUMMARY"

      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check if merging an up-to-date branch
        if: ${{ github.event_name == 'merge_group' }}
        id: expedite
        run: |
          N="$(expr "${{ github.ref }}" : '.*-\([0-9]\+\)-[^-]*$')"
          BASE_SHA="$(gh api /repos/${{ github.repository }}/pulls/"$N" | jq -r '.base.sha')"
          if git diff --quiet ${{ github.event.merge_group.base_sha }} "$BASE_SHA"; then
            echo "value=1" >> "$GITHUB_OUTPUT"
          fi
        env:
          GH_TOKEN: ${{ github.token }}

  test:
    needs: [maybe-expedite]

    if: ${{ ! needs.maybe-expedite.outputs.value }}

    strategy:
      fail-fast: ${{ github.event_name == 'merge_group' }}
      matrix:
        environment: [ubuntu-latest, macos-latest]

    runs-on: ${{ matrix.environment }}

    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

      - name: Install tools
        run: |
          rustup install nightly
          rustup +nightly component add clippy
          cargo install cargo-dylint dylint-link || true
          cargo install cargo-hack               || true
          cargo install cargo-udeps --locked     || true
          cargo install group-runner             || true

      - name: Build
        run: cargo test --no-run

      - name: Test
        run: cargo test --config "target.'cfg(all())'.runner = 'group-runner'"

  all-checks:
    needs: [test]

    if: ${{ always() }}

    runs-on: ubuntu-latest

    steps:
      - name: Check results
        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
        run: exit 1