build-windows.yml

name: Build Windows

on:
  push:
    branches: [ master, development ]
  pull_request:

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

jobs:
  build:

    runs-on: windows-latest
    permissions:
      contents: read

    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      # The LLVM/Clang dev toolchain is provisioned by setup.ps1 itself
      # (LLVM.PREBUILT, see scripts/setup/setup_llvm.ps1) into deps/llvm-conda,
      # which the deps cache below picks up.
      - name: Setup sccache
        uses: hendrikmuhs/ccache-action@v1.2
        with:
          variant: sccache
          key: ${{ github.job }}-${{ runner.os }}
          max-size: 2G

      - name: Cache AnyDSL toolchain (thorin/artic/runtime)
        uses: actions/cache@v4
        with:
          path: deps
          # v2: setup.ps1 provisions LLVM into deps/llvm-conda itself; caches
          # from the setup-micromamba era bake dead env paths into the AnyDSL
          # cmake exports and must never be restored.
          key: anydsl-deps-v2-${{ runner.os }}-${{ hashFiles('scripts/setup/config.json', 'scripts/setup/*.ps1') }}
          restore-keys: |
            anydsl-deps-v2-${{ runner.os }}-

      - name: Cache CPM sources
        uses: actions/cache@v4
        with:
          path: .cpm-cache
          key: cpm-${{ runner.os }}-${{ hashFiles('cmake/Dependencies.cmake') }}
          restore-keys: |
            cpm-${{ runner.os }}-

      - name: Generate CI setup config
        shell: pwsh
        run: |
          $cfg = Get-Content scripts/setup/config.json -Raw | ConvertFrom-Json
          # Keep the dependency tree inside the workspace so it can be cached.
          $cfg.LOCATION = "$env:GITHUB_WORKSPACE/deps"
          $cfg.CMAKE.EXTRA_ARGS += "-DCMAKE_C_COMPILER_LAUNCHER=sccache"
          $cfg.CMAKE.EXTRA_ARGS += "-DCMAKE_CXX_COMPILER_LAUNCHER=sccache"
          # zlib ships in the prebuilt LLVM env (LLVM.PREBUILT_PACKAGES), so skip
          # the flaky from-source build; setup_llvm.ps1 puts the env on
          # CMAKE_PREFIX_PATH and Ignis resolves it from there.
          $cfg.ZLIB.ENABLED = $false
          $cfg | ConvertTo-Json -Depth 16 | Set-Content scripts/setup/config.ci.json

      - name: Setup dependencies and build Ignis
        shell: pwsh
        run: |
          $env:CPM_SOURCE_CACHE = "$env:GITHUB_WORKSPACE/.cpm-cache"
          ./scripts/setup/setup.ps1 -config_file scripts/setup/config.ci.json

      - name: Run tests
        shell: pwsh
        run: ctest --test-dir build/Release --output-on-failure -E "(ignis_test_integrator)|(ignis_test_multiple_runtimes)"