rust.yml

# Inspired by:
# systemd/zram-generator CI - https://github.com/systemd/zram-generator/blob/main/.github/workflows/ci.yml
# aufover/aufover-benchmark CI - https://github.com/aufover/aufover-benchmark/blob/main/.github/workflows/fedora.yml
---

name: Rust CI
on:
  pull_request:
  push:
    branches: [ main ]
  # Every Monday at 04:00 AM
  schedule:
    - cron: 0 4 * * 1

env:
  CARGO_TERM_COLOR: always

permissions:
  contents: read

jobs:
  test:
    name: "[ Fedora ${{ matrix.fedora }} ] - Cargo Test ${{ matrix.coverage == true && '& Coverage ' || '' }}(rust ${{ matrix.rust }})"

    strategy:
      fail-fast: false
      matrix:
        rust: [ stable, nightly ]
        fedora: [ 39, 40, rawhide ]
        include:
          - rust: nightly
            fedora: 39
            coverage: true

    runs-on: ubuntu-latest
    container:
      image: fedora:${{ matrix.fedora }}
      # Docker seccomp policy incompatible with glibc 2.34
      # https://github.com/actions/runner-images/issues/3812
      options: --security-opt seccomp=unconfined

    steps:
      - uses: actions/checkout@v4

      - name: Install rust ${{ matrix.rust }}
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: ${{ matrix.rust }}

      - name: Install Development Tools packages
        # required to be able to build rust packages: Development Tools
        # https://trendoceans.com/fix-linker-cc-not-found/
        run: |
          sudo dnf groupinstall -y "Development Tools" || \
          sudo dnf5 group install -y development-tools || \
          sudo dnf5 group list

      - name: Test
        if: ${{ matrix.coverage != true }}
        run: |
          cargo test --all-features --no-fail-fast

      - name: Test + Coverage
        # -Z flag is available only on rust nightly
        if: ${{ matrix.coverage == true }}
        run: |
          cargo test --all-features --no-fail-fast
        env:
          CARGO_INCREMENTAL: '0'
          RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
          RUSTDOCFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'

      - name: Generate coverage data
        if: ${{ matrix.coverage == true }}
        id: coverage
        uses: actions-rs/grcov@v0.1

      - name: CodeCov - Upload coverage data
        if: ${{ matrix.coverage == true }}
        uses: codecov/codecov-action@v4
        with:
          files: ${{ steps.coverage.outputs.report }}
          fail_ci_if_error: false
          token: ${{ secrets.CODECOV_TOKEN }}

  rustfmt:
    name: Cargo Fmt
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install latest stable rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable
          components: rustfmt

      - name: Check format
        run: |
          cargo fmt -- --check

  clippy:
    name: Cargo Clippy
    runs-on: ubuntu-latest

    permissions:
      security-events: write

    steps:
      - uses: actions/checkout@v4

      - name: Install latest nightly rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: nightly
          components: clippy

      # https://github.com/psastras/sarif-rs
      - name: Install required cargo
        run: cargo install clippy-sarif sarif-fmt

      # Clippy doesn't return non-zero exit code on error
      # https://github.com/rust-lang/rust-clippy/issues/1209
      - name: Run Clippy
        continue-on-error: true
        run: >
          cargo clippy
          --no-deps
          --all-features
          --message-format=json | clippy-sarif | tee rust-clippy-results.sarif | sarif-fmt

      - name: Upload artifact with Clippy defects in SARIF format
        uses: actions/upload-artifact@v4
        with:
          name: Cargo Clippy SARIF
          path: rust-clippy-results.sarif

      - name: Upload analysis results to GitHub
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: rust-clippy-results.sarif

...