name: Clippy Test

on:
  pull_request:

env:
  RUST_BACKTRACE: 1
  CARGO_TARGET_DIR: '${{ github.workspace }}/target'
  NO_FMT_TEST: 1
  CARGO_INCREMENTAL: 0
  RUSTFLAGS: -D warnings

concurrency:
  # For a given workflow, if we push to the same PR, cancel all previous builds on that PR.
  # If the push is not attached to a PR, we will cancel all builds on the same branch.
  group: "${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}"
  cancel-in-progress: true

jobs:
  base:
    # NOTE: If you modify this job, make sure you copy the changes to clippy_mq.yml
    runs-on: ubuntu-latest

    steps:
    # Setup
    - name: Checkout
      uses: actions/checkout@v4
      with:
        # Unsetting this would make so that any malicious package could get our Github Token
        persist-credentials: false

    - name: Install toolchain
      run: |
        # Use a way compatible with Rustup pre-1.28.0 and Rustup 1.28.0
        rustup show active-toolchain || rustup toolchain install

    # Run
    - name: Build
      run: cargo build --tests --features internal

    - name: Test
      run: cargo test --features internal

    - name: Test clippy_lints
      run: cargo test
      working-directory: clippy_lints

    - name: Test clippy_utils
      run: cargo test
      working-directory: clippy_utils

    - name: Test rustc_tools_util
      run: cargo test
      working-directory: rustc_tools_util

    - name: Test clippy_dev
      run: cargo test
      working-directory: clippy_dev

    - name: Test clippy-driver
      run: .github/driver.sh
      env:
        OS: ${{ runner.os }}

  # We need to have the "conclusion" job also on PR CI, to make it possible
  # to add PRs to a merge queue.
  conclusion:
    needs: [ base ]
    # We need to ensure this job does *not* get skipped if its dependencies fail,
    # because a skipped job is considered a success by GitHub. So we have to
    # overwrite `if:`. We use `!cancelled()` to ensure the job does still not get run
    # when the workflow is canceled manually.
    #
    # ALL THE PREVIOUS JOBS NEED TO BE ADDED TO THE `needs` SECTION OF THIS JOB!
    if: ${{ !cancelled() }}
    runs-on: ubuntu-latest
    steps:
      # Manually check the status of all dependencies. `if: failure()` does not work.
      - name: Conclusion
        run: |
          # Print the dependent jobs to see them in the CI log
          jq -C <<< '${{ toJson(needs) }}'
          # Check if all jobs that we depend on (in the needs array) were successful.
          jq --exit-status 'all(.result == "success")' <<< '${{ toJson(needs) }}'
