Build with MaxCpuCount to speed up windows builds

Author: Redth

build.cake

@@ -6,7 +6,7 @@
 #addin nuget:?package=Cake.Json
 #addin nuget:?package=Cake.XCode
 #addin nuget:?package=Cake.Xamarin
-#addin nuget:?package=Cake.Xamarin.Build
+#addin nuget:?package=Cake.Xamarin.Build&version=1.0.25
 #addin nuget:?package=Cake.FileHelpers
 #addin nuget:?package=Cake.MonoApiTools
 
@@ -28,6 +28,8 @@ var RENDERSCRIPT_FOLDER = "android-7.1.1";
 // We grab the previous release's api-info.xml to use as a comparison for this build's generated info to make an api-diff
 var BASE_API_INFO_URL = "https://github.com/xamarin/AndroidSupportComponents/releases/download/24.2.1/api-info.xml";
 
+var CPU_COUNT = System.Environment.ProcessorCount;
+
 var AAR_INFOS = new [] {
 	new AarInfo ("support-v4", "v4", "Xamarin.Android.Support.v4", AAR_VERSION, NUGET_VERSION, COMPONENT_VERSION),
 	new AarInfo ("support-v13", "v13", "Xamarin.Android.Support.v13", AAR_VERSION, NUGET_VERSION, COMPONENT_VERSION),
@@ -104,6 +106,7 @@ var buildSpec = new BuildSpec {
 		new DefaultSolutionBuilder {
 			SolutionPath = "./AndroidSupport.sln",
 			BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac,
+			MaxCpuCount = CPU_COUNT,
 			OutputFiles = new [] {
 				new OutputFileCopy { FromFile = "./customtabs/source/bin/Release/Xamarin.Android.Support.CustomTabs.dll" },
 				new OutputFileCopy { FromFile = "./design/source/bin/Release/Xamarin.Android.Support.Design.dll" },
@@ -136,23 +139,23 @@ var buildSpec = new BuildSpec {
 	},
 
 	Samples = new [] {
-		new DefaultSolutionBuilder { SolutionPath = "./customtabs/samples/ChromeCustomTabsSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./design/samples/Cheesesquare.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./percent/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./recommendation/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v4/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-appcompat/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-cardview/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-gridlayout/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-mediarouter/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-palette/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-preference/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v7-recyclerview/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v8-renderscript/samples/RenderScriptSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v13/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./v17-leanback/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./vector-drawable/samples/VectorDrawableSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
-		new DefaultSolutionBuilder { SolutionPath = "./animated-vector-drawable/samples/VectorDrawableSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac },
+		new DefaultSolutionBuilder { SolutionPath = "./customtabs/samples/ChromeCustomTabsSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./design/samples/Cheesesquare.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./percent/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./recommendation/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v4/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-appcompat/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-cardview/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-gridlayout/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-mediarouter/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-palette/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-preference/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v7-recyclerview/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v8-renderscript/samples/RenderScriptSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v13/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./v17-leanback/samples/AndroidSupportSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./vector-drawable/samples/VectorDrawableSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
+		new DefaultSolutionBuilder { SolutionPath = "./animated-vector-drawable/samples/VectorDrawableSample.sln", BuildsOn = BuildPlatforms.Windows | BuildPlatforms.Mac, MaxCpuCount = CPU_COUNT },
 	},
 
 	NuGets = new [] {