Merge pull request #2605 from sharwell/appveyor-cache

Enable AppVeyor caching for new-style NuGet packages

Author: sharwell

appveyor.yml

@@ -11,9 +11,9 @@ test_script:
 - .\packages\OpenCover.4.6.247-rc\tools\OpenCover.Console.exe -register:user -target:"%xunit20%\xunit.console.x86.exe" -targetargs:"C:\projects\stylecopanalyzers\StyleCop.Analyzers\StyleCop.Analyzers.Test\bin\Debug\net452\StyleCop.Analyzers.Test.dll -noshadow -appveyor" -returntargetcode -filter:"+[StyleCop*]*" -excludebyattribute:*.ExcludeFromCodeCoverage* -excludebyfile:*\*Designer.cs -hideskipped:All -output:.\StyleCopAnalyzers_coverage.xml
 - .\packages\OpenCover.4.6.247-rc\tools\OpenCover.Console.exe -register:user -target:"%xunit20%\xunit.console.x86.exe" -targetargs:"C:\projects\stylecopanalyzers\StyleCop.Analyzers\StyleCop.Analyzers.Test.CSharp7\bin\Debug\net46\StyleCop.Analyzers.Test.CSharp7.dll -noshadow -appveyor" -returntargetcode -filter:"+[StyleCop*]*" -excludebyattribute:*.ExcludeFromCodeCoverage* -excludebyfile:*\*Designer.cs -hideskipped:All -mergebyhash -mergeoutput -output:.\StyleCopAnalyzers_coverage.xml
 - .\packages\Codecov.1.0.1\tools\codecov.exe -f "StyleCopAnalyzers_coverage.xml"
-# preserve "packages" directory in the root of build folder but will reset it if packages.config is modified
 cache:
   - packages -> **\packages.config
+  - C:\Users\appveyor\.nuget\packages -> appveyor.yml
 artifacts:
 - path: 'StyleCop.Analyzers\**\*.vsix'
 - path: 'StyleCop.Analyzers\**\*.nupkg'