Merge branch 'master' into patch-1

.gitignore

@@ -29,3 +29,5 @@ YamlDotNet/Properties/AssemblyInfo.Generated.cs
 
 /.vs
 /YamlDotNet/Properties/AssemblyInfo.cs
+BenchmarkDotNet.Artifacts
+

CONTRIBUTING.md

@@ -20,7 +20,7 @@ All contributions should be submitted as pull requests.
 1. Always add one or more **unit tests** that prove that the feature / fix you are submitting is working correctly.
 
 1. Please **describe the motivation** behind the pull request. Explain what was the problem / requirement. Unless the implementation is self-explanatory, also describe the solution.
-  * Of course, there's no need to be too verbose. Usually one or two lines will be enough.
+   * Of course, there's no need to be too verbose. Usually one or two lines will be enough.
 
 ## Project organization
 

PerformanceTests/YamlDotNet.PerformanceTests.Builder/YamlDotNet.PerformanceTests.Builder.csproj

@@ -0,0 +1,22 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="Current">
+  <PropertyGroup>
+    <OldToolsVersion>2.0</OldToolsVersion>
+    <ProjectGuid>{2C86D85C-A483-4F17-8897-2B53DC1DBFA3}</ProjectGuid>
+    <Configurations>Release</Configurations>
+    <Platforms>AnyCPU</Platforms>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+  </PropertyGroup>
+  <Import Project="versions.props" />
+  <ItemGroup>
+    <None Include="versions.props" />
+  </ItemGroup>
+  <Target Name="Build" Outputs="%(TestVersions.Identity)">
+    <Message Importance="high" Text="BUILDING %(TestVersions.Identity)" />
+    <MSBuild Projects="..\YamlDotNet.PerformanceTests\YamlDotNet.PerformanceTests.csproj" Targets="Restore;Build" BuildInParallel="$(BuildInParallel)" Properties="Configuration=Release;TestVersion=%(TestVersions.Identity);BaseIntermediateOutputPath=obj\%(TestVersions.Identity)\;MSBuildProjectExtensionsPath=obj\%(TestVersions.Identity)\" />
+    <Message Importance="high" Text="&#xA;" />
+  </Target>
+  <Target Name="Clean">
+    <RemoveDir Directories="..\YamlDotNet.PerformanceTests\obj\%(TestVersions.Identity)" />
+  </Target>
+</Project>

PerformanceTests/YamlDotNet.PerformanceTests.Builder/versions.props

@@ -0,0 +1,12 @@
+<Project>
+	<ItemGroup>
+		<!-- After changing this file, you need to tell Visual Studio to reload the project! -->
+
+		<TestVersions Include="3.8.0" />
+		<TestVersions Include="4.0.0" />
+		<TestVersions Include="5.3.0" />
+		<TestVersions Include="8.0.0" />
+		<TestVersions Include="8.1.2" />
+		<TestVersions Include="latest" />
+	</ItemGroup>
+</Project>