name: test

concurrency:
  # For PRs, later CI runs preempt previous ones. e.g. a force push on a PR
  # cancels running CI jobs and starts all new ones.
  #
  # For non-PR pushes, concurrency.group needs to be unique for every distinct
  # CI run we want to have happen. Use run_id, which in practice means all
  # non-PR CI runs will be allowed to run without preempting each other.
  group: ${{ github.workflow }}-$${{ github.pull_request.number || github.run_id }}
  cancel-in-progress: true

on:
  pull_request:
    paths:
      - '**/*'
      - '!docs/**'
      - '!README.md'

jobs:
  changes:
    runs-on: ubuntu-latest
    outputs:
      changed: ${{ steps.changes.outputs.changed }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - id: changes
        run: |
          changed() {
            local BASE=${{ github.event.pull_request.base.sha }}
            local HEAD=${{ github.event.pull_request.head.sha }}
            local MERGE_BASE=$(git merge-base $BASE $HEAD)
            git diff-tree -r --no-commit-id --name-only "$MERGE_BASE" "$HEAD" \
              | xargs python3 -c "import sys; from pathlib import Path; print(any(Path(x).match(glob) for x in sys.argv[1:] for glob in '$*'.split(' ')))"
          }

          echo changed=$(changed 'llama/llama.cpp/**' 'ml/backend/ggml/ggml/**') | tee -a $GITHUB_OUTPUT

  linux:
    needs: [changes]
    if: ${{ needs.changes.outputs.changed == 'True' }}
    strategy:
      matrix:
        include:
          - container: nvidia/cuda:11.8.0-devel-ubuntu22.04
            preset: CUDA
          - container: rocm/dev-ubuntu-22.04:6.1.2
            preset: ROCm
            extra-packages: rocm-libs
    runs-on: ubuntu-latest
    container: ${{ matrix.container }}
    steps:
      - uses: actions/checkout@v4
      - run: |
          apt-get update
          apt-get install -y cmake pkg-config ${{ matrix.extra-packages }}
        env:
          DEBIAN_FRONTEND: noninteractive
      - run: |
          cmake --preset ${{ matrix.preset }}
          cmake --build --preset ${{ matrix.preset }} --parallel

  test:
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
    runs-on: ${{ matrix.os }}
    env:
      CGO_ENABLED: '1'
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
      - uses: golangci/golangci-lint-action@v6
        with:
          args: --timeout 10m0s -v
      - run: go test ./...

  patches:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Verify patches apply cleanly and do not change files
        run: |
          make -f Makefile2 clean checkout sync
          git diff --compact-summary --exit-code