backend/llama.cpp/.github/workflows/build-msys.yml

name: CI (msys)

on:
  # only manual triggers due to low-importance of the workflows
  # TODO: for regular runs, provision dedicated self-hosted runners
  workflow_dispatch:
  # run once every week
  schedule:
    - cron: '0 0 * * 0'

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
  cancel-in-progress: true

env:
  GGML_NLOOP: 3
  GGML_N_THREADS: 1
  LLAMA_ARG_LOG_COLORS: 1
  LLAMA_ARG_LOG_PREFIX: 1
  LLAMA_ARG_LOG_TIMESTAMPS: 1

jobs:
  windows-msys2:
    runs-on: windows-2025

    strategy:
      fail-fast: false
      matrix:
        include:
          - { sys: UCRT64,  env: ucrt-x86_64,  compiler: gcc,   build: Release }
          - { sys: CLANG64, env: clang-x86_64, compiler: clang, build: Release }

    steps:
      - name: Clone
        uses: actions/checkout@v6

      #- name: ccache
      #  uses: ggml-org/ccache-action@v1.2.16
      #  with:
      #    key: msys-windows-2025-x64
      #    variant: ccache
      #    evict-old-files: 1d
      #    save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}

      - name: Setup ${{ matrix.sys }}
        uses: msys2/setup-msys2@cafece8e6baf9247cf9b1bf95097b0b983cc558d # v2
        with:
          update: true
          msystem: ${{matrix.sys}}
          install: >-
            mingw-w64-${{matrix.env}}-${{matrix.compiler}}
            mingw-w64-${{matrix.env}}-cmake
            mingw-w64-${{matrix.env}}-openblas

      - name: Build using CMake
        shell: msys2 {0}
        run: |
            cmake -B build
            cmake --build build --config ${{ matrix.build }} -j $(nproc)

      - name: Clean after building using CMake
        shell: msys2 {0}
        run: |
            rm -rf build

      - name: Build using CMake w/ OpenBLAS
        shell: msys2 {0}
        run: |
            cmake -B build -DGGML_BLAS=ON -DGGML_BLAS_VENDOR=OpenBLAS
            cmake --build build --config ${{ matrix.build }} -j $(nproc)