shallow_clone: true

platform:
  - x86
  - x64

configuration:
  - Debug
  - Release

image:
  - Visual Studio 2015
  - Visual Studio 2017

environment:
  matrix:
    #- GSL_CXX_STANDARD: 14
    #  USE_TOOLSET: MSVC
    #- GSL_CXX_STANDARD: 17
    #  USE_TOOLSET: MSVC
    #- GSL_CXX_STANDARD: 14
    #  USE_TOOLSET: LLVM
    - GSL_CXX_STANDARD: 17
      USE_TOOLSET: LLVM

matrix:
    exclude:
    - image: Visual Studio 2015
      GSL_CXX_STANDARD: 17
    - image: Visual Studio 2015
      USE_TOOLSET: LLVM

cache:
  - C:\cmake-3.8.0-win32-x86

install:
  - ps: |
      if ($env:USE_TOOLSET -ne "LLVM") {
        if (![IO.File]::Exists("C:\cmake-3.8.0-win32-x86\bin\cmake.exe")) {
          Start-FileDownload 'https://cmake.org/files/v3.8/cmake-3.8.0-win32-x86.zip'
          7z x -y cmake-3.8.0-win32-x86.zip -oC:\
        }
        $env:PATH="C:\cmake-3.8.0-win32-x86\bin;$env:PATH"
      }

before_build:
  - ps: |
      mkdir build
      cd build
      if ("$env:APPVEYOR_JOB_NAME" -match "Image: Visual Studio 2015") {
          $env:generator="Visual Studio 14 2015"
      } else {
          $env:generator="Visual Studio 15 2017"
      }
      if ($env:PLATFORM -eq "x64") {
          $env:generator="$env:generator Win64"
      }
      echo generator="$env:generator"
      if ($env:USE_TOOLSET -eq "LLVM") {
          $COMPILER = "C:\\Program Files\\LLVM\\bin\\clang-cl.exe"
          $LINKER = "lld-link"
          # Workaround for lld bug with vcpkg integration
          if ((Get-Content C:\Tools\vcpkg\toolsrc\VERSION.txt).Replace('.','').Trim('"') -lt 20181020) {
              echo "Fallback to MSVC linker."
              cmd /c '"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM% && PATH > path.txt'
              $env:PATH = (Get-Content .\path.txt).Remove(0,5) # "PATH="
              $LINKER = "link.exe"
          } else { echo "==> vcpkg has been updated, please remove the workaround from appvayor.yml." }
          # /Workaround
          clang-cl --version
          echo $env:PATH
          cmake .. -G "$env:generator" -T llvm -DGSL_CXX_STANDARD="$env:GSL_CXX_STANDARD" -DCMAKE_CXX_COMPILER="$COMPILER" -DCMAKE_LINKER="$LINKER"
      }
      else {
          cmake .. -G "$env:generator" -DGSL_CXX_STANDARD="$env:GSL_CXX_STANDARD"
      }

build_script:
  - cmake --build . --config %CONFIGURATION% -- /m /v:minimal

test_script:
  - ctest -j2

deploy: off