mutants.yml

name: Find mutants
on:
  push:
    branches: ["main"]
    paths-ignore: ["*.md", "*.png", "*.svg", "LICENSE-*"]
  pull_request:
    branches: ["main"]
    paths-ignore: ["*.md", "*.png", "*.svg", "LICENSE-*"]
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref_name }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  mutants:
    if: github.event_name == 'pull_request' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
        with:
          fetch-depth: 0

      - id: nss-version
        run: echo "minimum=$(cat neqo-crypto/min_version.txt)" >> "$GITHUB_OUTPUT"

      - uses: ./.github/actions/nss
        with:
          minimum-version: ${{ steps.nss-version.outputs.minimum }}

      - uses: ./.github/actions/rust
        with:
          tools: cargo-mutants
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Find incremental mutants
        if: github.event_name == 'pull_request'
        run: |
          git diff origin/${{ github.base_ref }}.. > pr.diff
          set -o pipefail
          cargo mutants --test-tool=nextest --no-shuffle -j 2 -vV --in-diff pr.diff | tee results.txt || true
          echo 'TITLE=Incremental Mutants' >> "$GITHUB_ENV"

      - name: Find mutants
        if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
        run: |
          set -o pipefail
          cargo mutants --test-tool=nextest -vV --in-place | tee results.txt || true
          echo 'TITLE=All Mutants' >> "$GITHUB_ENV"

      - name: Post step summary
        run: |
          {
            echo "### $TITLE"
            echo "See https://mutants.rs/using-results.html for more information."
            echo '```'
            sed 's/\x1b\[[0-9;]*[mGKHF]//g' results.txt || true
            echo '```'
          } > "$GITHUB_STEP_SUMMARY"

      - uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3
        with:
          name: mutants.out
          path: mutants.out