ci: Use Ninja generator on AppVeyor

Author: chfast

appveyor.yml

@@ -1,4 +1,6 @@
 version: "{build}"
+image: Visual Studio 2017
+
 branches:
   only:
   - master
@@ -10,28 +12,29 @@ environment:
   HUNTER_CACHE_TOKEN:
     secure: agYfiC1OKfHnGOJQolOBorIRovVTgDW3TJ8JOb2+0XZiAnNwbrtPegxaaFM8/VWu
   matrix:
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      GENERATOR: "Visual Studio 15 2017 Win64"
+    - ARCH: amd64
       CONFIGURATION: Debug
-
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      GENERATOR: "Visual Studio 15 2017"
-
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      GENERATOR: "Visual Studio 14 2015 Win64"
+    - ARCH: x86
+    - ARCH: amd64
 
 install:
   # Python 3
-  - set PATH=C:\Python36-x64;C:\Python36-x64\Scripts;%PATH%
+  - set PATH_ORIG=%PATH%
+  - set PATH=C:\Python36-x64;C:\Python36-x64\Scripts;%PATH_ORIG%
   - pip install requests
 
-before_build: |
-  if not exist build mkdir build
-  cd build
-  cmake -G "%GENERATOR%" .. -DHUNTER_CONFIGURATION_TYPES=%CONFIGURATION%
+before_build:
+  - call "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\Common7\Tools\vsdevcmd" -arch=%ARCH%
+  - if not exist build mkdir build
+  - cd build
+  - cmake -GNinja .. -DCMAKE_INSTALL_PREFIX=../dist -DCMAKE_BUILD_TYPE=%CONFIGURATION% -DHUNTER_CONFIGURATION_TYPES=%CONFIGURATION%
+
+build_script:
+  - cmake --build . --target install
 
-build_script: |
-  cmake --build . --config %CONFIGURATION%
+test_script:
+  - if %CONFIGURATION%==Release C:\projects\ethash\build\test\ethash-test.exe
 
-test_script: |
-  if %CONFIGURATION%==Release C:\projects\ethash\build\test\%CONFIGURATION%\ethash-test.exe
+artifacts:
+  - path: dist
+    name: dist