Squashed 'libs/protobuf/' content from commit fcd3b9a85

git-subtree-dir: libs/protobuf
git-subtree-split: fcd3b9a85ef36e46643dc30176cea1a7ad62e02b

appveyor.bat

@@ -0,0 +1,48 @@
+setlocal
+
+IF %platform%==MinGW GOTO build_mingw
+IF %language%==cpp GOTO build_cpp
+IF %language%==csharp GOTO build_csharp
+
+echo Unsupported language %language% and platform %platform%. Exiting.
+goto :error
+
+:build_mingw
+echo Building MinGW
+set PATH=C:\mingw-w64\x86_64-7.2.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH:C:\Program Files\Git\usr\bin;=%
+mkdir build_mingw
+cd build_mingw
+cmake -G "%generator%" -Dprotobuf_BUILD_SHARED_LIBS=%BUILD_DLL% -Dprotobuf_UNICODE=%UNICODE% -Dprotobuf_BUILD_TESTS=0 ../cmake
+mingw32-make -j8 all || goto error
+rem cd %configuration%
+rem tests.exe || goto error
+goto :EOF
+
+:build_cpp
+echo Building C++
+mkdir build_msvc
+cd build_msvc
+cmake -G "%generator%" -Dprotobuf_BUILD_SHARED_LIBS=%BUILD_DLL% -Dprotobuf_UNICODE=%UNICODE% ../cmake
+msbuild protobuf.sln /p:Platform=%vcplatform% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" || goto error
+cd %configuration%
+tests.exe || goto error
+goto :EOF
+
+:build_csharp
+echo Building C#
+cd csharp\src
+REM The platform environment variable is implicitly used by msbuild;
+REM we don't want it.
+set platform=
+dotnet restore
+dotnet build -c %configuration% || goto error
+
+echo Testing C#
+dotnet test -c %configuration% -f netcoreapp3.1 Google.Protobuf.Test\Google.Protobuf.Test.csproj || goto error
+dotnet test -c %configuration% -f net451 Google.Protobuf.Test\Google.Protobuf.Test.csproj || goto error
+
+goto :EOF
+
+:error
+echo Failed!
+EXIT /b %ERRORLEVEL%