Move packages under top-level 'src' folder

src/Microsoft.AspNet.SpaServices/.gitignore

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+/bin/

src/Microsoft.AspNet.SpaServices/Microsoft.AspNet.SpaServices.xproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.23107" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.23107</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>4624f728-6dff-44b6-93b5-3c7d9c94bf3f</ProjectGuid>
+    <RootNamespace>Microsoft.AspNet.SpaServices</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>

src/Microsoft.AspNet.SpaServices/SpaRouteConstraint.cs

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+using System;
+using System.Collections.Generic;
+using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Routing;
+
+namespace Microsoft.AspNet.SpaServices 
+{
+    internal class SpaRouteConstraint : IRouteConstraint
+    {
+        private readonly string clientRouteTokenName;
+    
+        public SpaRouteConstraint(string clientRouteTokenName) {
+            if (string.IsNullOrEmpty(clientRouteTokenName)) {
+                throw new ArgumentException("Value cannot be null or empty", "clientRouteTokenName");
+            }
+            
+            this.clientRouteTokenName = clientRouteTokenName;
+        }
+        
+        public bool Match(HttpContext httpContext, IRouter route, string routeKey, IDictionary<string, object> values, RouteDirection routeDirection)
+        {
+            var clientRouteValue = (values[this.clientRouteTokenName] as string) ?? string.Empty;
+            return !HasDotInLastSegment(clientRouteValue);
+        }
+    
+        private bool HasDotInLastSegment(string uri)
+        {
+            var lastSegmentStartPos = uri.LastIndexOf('/');
+            return uri.IndexOf('.', lastSegmentStartPos + 1) >= 0;
+        }
+    }
+}

src/Microsoft.AspNet.SpaServices/SpaRouteExtensions.cs

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+using System;
+using System.Collections.Generic;
+using Microsoft.AspNet.Routing;
+using Microsoft.AspNet.SpaServices;
+
+// Putting in this namespace so it's always available whenever MapRoute is
+namespace Microsoft.AspNet.Builder
+{
+    public static class SpaRouteExtensions
+    {
+        private const string ClientRouteTokenName = "clientRoute";
+
+        public static void MapSpaFallbackRoute(this IRouteBuilder routeBuilder, string name, object defaults, object constraints = null, object dataTokens = null)
+        {
+            MapSpaFallbackRoute(routeBuilder, name, /* templatePrefix */ (string)null, defaults, constraints, dataTokens);
+        }
+
+        public static void MapSpaFallbackRoute(this IRouteBuilder routeBuilder, string name, string templatePrefix, object defaults, object constraints = null, object dataTokens = null)
+        {
+            var template = CreateRouteTemplate(templatePrefix);
+
+            var constraintsDict = ObjectToDictionary(constraints);
+            constraintsDict.Add(ClientRouteTokenName, new SpaRouteConstraint(ClientRouteTokenName));
+
+            routeBuilder.MapRoute(name, template, defaults, constraintsDict, dataTokens);
+        }
+
+        private static string CreateRouteTemplate(string templatePrefix)
+        {
+            templatePrefix = templatePrefix ?? string.Empty;
+
+            if (templatePrefix.Contains("?")) {
+                // TODO: Consider supporting this. The {*clientRoute} part should be added immediately before the '?'
+                throw new ArgumentException("SPA fallback route templates don't support querystrings");
+            }
+            
+            if (templatePrefix.Contains("#")) {
+                throw new ArgumentException("SPA fallback route templates should not include # characters. The hash part of a URI does not get sent to the server.");
+            }
+            
+            if (templatePrefix != string.Empty && !templatePrefix.EndsWith("/")) {
+                templatePrefix += "/";
+            }
+
+            return templatePrefix + $"{{*{ ClientRouteTokenName }}}";
+        }
+        
+        private static IDictionary<string, object> ObjectToDictionary(object value)
+        {
+            return value as IDictionary<string, object> ?? new RouteValueDictionary(value);
+        }
+    }
+}

src/Microsoft.AspNet.SpaServices/project.json

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+{
+  "version": "1.0.0-alpha7-1",
+  "description": "Microsoft.AspNet.SpaServices",
+  "authors": [
+    "Microsoft"
+  ],
+  "tags": [
+    ""
+  ],
+  "projectUrl": "",
+  "licenseUrl": "",
+  "dependencies": {
+    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
+    "Microsoft.AspNet.Routing": "1.0.0-rc1-final"
+  },
+  "frameworks": {
+    "net451": { },
+    "dotnet5.4": {
+      "dependencies": {
+      }
+    }
+  }
+}