c-cpp.yml

name: C/C++ CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

jobs:
  build:
    runs-on: ${{ matrix.sys.os }}
    strategy:
      matrix:
        sys:
          - { os: ubuntu-latest,  shell: bash }
          - { os: macos-latest,   shell: bash }
          - { os: windows-latest, shell: 'msys2 {0}' }
    defaults:
      run:
        shell: ${{ matrix.sys.shell }}
    steps:
      - uses: actions/checkout@v4
      - if: ${{ runner.os == 'Windows' }}
        # Based on https://www.msys2.org/docs/ci/
        uses: msys2/setup-msys2@v2
        with:
          msystem: UCRT64
          update: true
          install: git mingw-w64-ucrt-x86_64-gcc make
      - name: make
        run: make clean && make -j
      - name: make check
        run: |
          # Test output is too verbose, so just show last N lines.
          testout="$(make check -j 2>&1)" &&
          (printf '[...beginning of test output omitted...]\n' &&
           printf '%s\n' "$testout" | tail -n100) ||
          (printf '%s\n' "$testout" | tail -n500; exit 1)