shallow_clone: true

platform:
  - x86
  - x64

configuration:
  - Debug
  - Release

image:
  - Visual Studio 2015
  - Visual Studio 2017

environment:
  NINJA_TAG: v1.8.2
  NINJA_SHA512: 9B9CE248240665FCD6404B989F3B3C27ED9682838225E6DC9B67B551774F251E4FF8A207504F941E7C811E7A8BE1945E7BCB94472A335EF15E23A0200A32E6D5
  NINJA_PATH: C:\Tools\ninja\ninja-%NINJA_TAG%
  VCVAR2015: 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat'
  VCVAR2017: 'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat'
  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
  - C:\Tools\ninja

install:
  - ps: |
      if (![IO.File]::Exists("$env:NINJA_PATH\ninja.exe")) {
        Start-FileDownload `
          "https://github.com/ninja-build/ninja/releases/download/$env:NINJA_TAG/ninja-win.zip"
        $hash = (Get-FileHash ninja-win.zip -Algorithm SHA512).Hash
        if ($env:NINJA_SHA512 -eq $hash) {
          7z e -y ninja-win.zip -o"$env:NINJA_PATH"
        } else { Write-Warning "Ninja download hash changed!"; Write-Output "$hash" }
      }
      if ([IO.File]::Exists("$env:NINJA_PATH\ninja.exe")) {
        $env:PATH = "$env:NINJA_PATH;$env:PATH"
      } else { Write-Warning "Failed to find ninja.exe in expected location." }
      if ($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"
      }
      # Workaround for lld bug with vcpkg integration
      if ($env:USE_TOOLSET -eq "LLVM") {
        if (
          (Get-Content C:\Tools\vcpkg\toolsrc\VERSION.txt).Replace('.','').Trim('"') -lt 20181020
        ) {
          echo "Updating vcpkg..."
          cd C:\Tools\vcpkg
          git pull --quiet
          cd "$env:APPVEYOR_BUILD_FOLDER"
        } else {
          Write-Warning "vcpkg has been updated, please remove the workaround from appveyor.yml."
        }
      }

before_build:
  - ps: |
      mkdir build > $NULL
      cd build
      if ("$env:APPVEYOR_BUILD_WORKER_IMAGE" -eq "Visual Studio 2015") {
        $env:VCVARSALL = $env:VCVAR2015
      } else {
        $env:VCVARSALL = $env:VCVAR2017
      }
      $env:ARCHITECTURE = $env:PLATFORM
      if ("$env:USE_TOOLSET" -eq "LLVM") {
          $env:CC  = "clang-cl"
          $env:CXX = "clang-cl"
      } elseif ("$env:USE_TOOLSET" -ne "MSVC") {
        Write-Warning "Configuration error: Invalid value for 'USE_TOOLSET'. Assume MSVC"
      }

build_script:
  - call "%VCVARSALL%" %ARCHITECTURE%
  - cmake .. -G "Ninja" -DGSL_CXX_STANDARD="%GSL_CXX_STANDARD%"
  - cmake --build . --config %CONFIGURATION%

test_script:
  - ctest -j2

deploy: off