Update build script and add cmd script

Author: AArnott

.travis.yml

@@ -20,7 +20,7 @@ install:
 
 # Build libgit2, LibGit2Sharp and run the tests
 script:
- - ./build.libgit2sharp.sh 'LEAKS_IDENTIFYING'
+ - ./buildandtest.sh 'LEAKS_IDENTIFYING'
 
 # Only watch the development branch
 branches:

buildandtest.cmd

@@ -0,0 +1,39 @@
+@ECHO OFF
+
+REM Sample usages:
+REM
+REM  Building and running tests
+REM  - build.libgit2sharp.cmd
+REM
+REM  Building and identifying potential leaks while running tests
+REM  - build.libgit2sharp.cmd "LEAKS_IDENTIFYING"
+
+SETLOCAL
+
+SET EXTRADEFINE=%~1
+
+where dotnet 1>nul 2>nul
+IF ERRORLEVEL 1 (
+    ECHO Cannot find dotnet.exe. Run from a VS2017 Developer Prompt.
+    EXIT /B 1
+)
+
+ECHO ON
+
+SET Configuration=Release
+
+:: Restore packages
+dotnet restore "%~dp0\"
+@IF ERRORLEVEL 1 EXIT /B %ERRORLEVEL%
+
+:: Build
+dotnet build "%~dp0\" /v:minimal /nologo /property:ExtraDefine="%EXTRADEFINE%"
+@IF ERRORLEVEL 1 EXIT /B %ERRORLEVEL%
+
+:: Run tests on Desktop and CoreCLR
+"%userprofile%\.nuget\packages\xunit.runner.console\2.2.0\tools\xunit.console.exe" "%~dp0bin\LibGit2Sharp.Tests\%Configuration%\net46\LibGit2Sharp.Tests.dll" -noshadow
+@IF ERRORLEVEL 1 EXIT /B %ERRORLEVEL%
+dotnet test "%~dp0LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj" --no-build -f netcoreapp1.0
+@IF ERRORLEVEL 1 EXIT /B %ERRORLEVEL%
+
+EXIT /B %ERRORLEVEL%