Added index timestamp

src/NuGetGallery/Content/Site.css

@@ -476,6 +476,10 @@ fieldset.search {
 
 /* List Package */
 
+.package-list-lastupdated {
+    font-size: 14pt;
+}
+
 section.package {
     border-top: 1px solid #ccc;
     padding-top: 10px;

src/NuGetGallery/Controllers/CuratedFeedsController.cs

@@ -81,6 +81,7 @@ public virtual async Task<ActionResult> ListPackages(string curatedFeedName, str
 
             var viewModel = new PackageListViewModel(
                 results.Data,
+                results.IndexTimestampUtc,
                 q,
                 totalHits,
                 page - 1,

src/NuGetGallery/Controllers/PackagesController.cs

@@ -303,6 +303,7 @@ public virtual async Task<ActionResult> ListPackages(string q, int page = 1)
 
             var viewModel = new PackageListViewModel(
                 results.Data,
+                results.IndexTimestampUtc,
                 q,
                 totalHits,
                 page - 1,

src/NuGetGallery/ExtensionMethods.cs

@@ -23,6 +23,11 @@ namespace NuGetGallery
 {
     public static class ExtensionMethods
     {
+        public static string ToJavaScriptUTC(this DateTime self)
+        {
+            return self.ToString("yyyy-MM-dd HH:mm:ss UTC", CultureInfo.CurrentCulture);
+        }
+
         public static string ToNuGetShortDateTimeString(this DateTime self)
         {
             return self.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.CurrentCulture);

src/NuGetGallery/Infrastructure/Lucene/ExternalSearchService.cs

@@ -111,12 +111,13 @@ private async Task<SearchResults> SearchCore(SearchFilter filter, bool raw)
                 var content = await result.ReadContent();
                 if (filter.CountOnly || content.TotalHits == 0)
                 {
-                    results = new SearchResults(content.TotalHits);
+                    results = new SearchResults(content.TotalHits, content.IndexTimestamp);
                 }
                 else
                 {
                     results = new SearchResults(
                         content.TotalHits,
+                        content.IndexTimestamp,
                         content.Data.Select(ReadPackage).AsQueryable());
                 }
             }

src/NuGetGallery/Infrastructure/Lucene/LuceneSearchService.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using Lucene.Net.Analysis;
@@ -49,6 +50,9 @@ public Task<SearchResults> Search(SearchFilter searchFilter)
 
         private SearchResults SearchCore(SearchFilter searchFilter)
         {
+            // Get index timestamp
+            DateTime timestamp = File.GetLastWriteTimeUtc(LuceneCommon.GetIndexMetadataPath());
+
             int numRecords = searchFilter.Skip + searchFilter.Take;
 
             var searcher = new IndexSearcher(_directory, readOnly: true);
@@ -77,7 +81,7 @@ private SearchResults SearchCore(SearchFilter searchFilter)
 
             if (results.TotalHits == 0 || searchFilter.CountOnly)
             {
-                return new SearchResults(results.TotalHits);
+                return new SearchResults(results.TotalHits, timestamp);
             }
 
             var packages = results.ScoreDocs
@@ -86,6 +90,7 @@ private SearchResults SearchCore(SearchFilter searchFilter)
                                   .ToList();
             return new SearchResults(
                 results.TotalHits,
+                timestamp,
                 packages.AsQueryable());
         }
 

src/NuGetGallery/NuGetGallery.csproj

@@ -271,13 +271,13 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\packages\NuGet.Core.2.8.1\lib\net40-Client\NuGet.Core.dll</HintPath>
     </Reference>
-    <Reference Include="NuGet.Services.Platform.Client, Version=3.0.3.0, Culture=neutral, processorArchitecture=MSIL">
+    <Reference Include="NuGet.Services.Platform.Client, Version=3.0.11.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\NuGet.Services.Platform.Client.3.0.3-rel-0008\lib\portable-net45+wp80+win\NuGet.Services.Platform.Client.dll</HintPath>
+      <HintPath>..\..\packages\NuGet.Services.Platform.Client.3.0.11-r-master\lib\portable-net45+wp80+win\NuGet.Services.Platform.Client.dll</HintPath>
     </Reference>
-    <Reference Include="NuGet.Services.Search.Client, Version=3.0.3.0, Culture=neutral, processorArchitecture=MSIL">
+    <Reference Include="NuGet.Services.Search.Client, Version=3.0.16.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\NuGet.Services.Search.Client.3.0.3-rel-0015\lib\portable-net45+wp80+win\NuGet.Services.Search.Client.dll</HintPath>
+      <HintPath>..\..\packages\NuGet.Services.Search.Client.3.0.16-r-master\lib\portable-net45+wp80+win\NuGet.Services.Search.Client.dll</HintPath>
     </Reference>
     <Reference Include="ODataNullPropagationVisitor">
       <HintPath>..\..\packages\ODataNullPropagationVisitor.0.5.4237.2641\lib\net40\ODataNullPropagationVisitor.dll</HintPath>

src/NuGetGallery/Services/ISearchService.cs

@@ -1,4 +1,5 @@
-using System.Linq;
+using System;
+using System.Linq;
 using System.Threading.Tasks;
 
 namespace NuGetGallery
@@ -31,17 +32,19 @@ public interface IRawSearchService
     public class SearchResults
     {
         public int Hits { get; private set; }
+        public DateTime? IndexTimestampUtc { get; private set; }
         public IQueryable<Package> Data { get; private set; }
 
-        public SearchResults(int hits)
-            : this(hits, Enumerable.Empty<Package>().AsQueryable())
+        public SearchResults(int hits, DateTime? indexTimestampUtc)
+            : this(hits, indexTimestampUtc, Enumerable.Empty<Package>().AsQueryable())
         {
         }
 
-        public SearchResults(int hits, IQueryable<Package> data)
+        public SearchResults(int hits, DateTime? indexTimestampUtc, IQueryable<Package> data)
         {
             Hits = hits;
             Data = data;
+            IndexTimestampUtc = indexTimestampUtc;
         }
     }
 }

src/NuGetGallery/ViewModels/PackageListViewModel.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Web.Mvc;
 
@@ -8,6 +9,7 @@ public class PackageListViewModel
     {
         public PackageListViewModel(
             IQueryable<Package> packages,
+            DateTime? indexTimestampUtc,
             string searchTerm,
             int totalCount,
             int pageIndex,
@@ -17,6 +19,7 @@ public class PackageListViewModel
             // TODO: Implement actual sorting
             IEnumerable<ListPackageItemViewModel> items = packages.ToList().Select(pv => new ListPackageItemViewModel(pv));
             PageIndex = pageIndex;
+            IndexTimestampUtc = indexTimestampUtc;
             PageSize = pageSize;
             TotalCount = totalCount;
             SearchTerm = searchTerm;
@@ -49,5 +52,7 @@ public class PackageListViewModel
         public int PageIndex { get; private set; }
 
         public int PageSize { get; private set; }
+
+        public DateTime? IndexTimestampUtc { get; private set; }
     }
 }

src/NuGetGallery/Views/Shared/ListPackages.cshtml

@@ -27,10 +27,14 @@
                 <text>There are @Model.TotalCount packages</text>
             }</h1>
     }
-    @if (@Model.LastResultIndex > 0)
+    @if (Model.LastResultIndex > 0)
     {
         <h2>Displaying results @Model.FirstResultIndex - @Model.LastResultIndex.</h2>
     }
+    @if(Model.IndexTimestampUtc.HasValue) 
+    {
+        <h3 class="package-list-lastupdated">Search Index last updated <span class="s-localtime" data-utc="@Model.IndexTimestampUtc.Value.ToJavaScriptUTC()">@Model.IndexTimestampUtc.Value.ToJavaScriptUTC()</span></h3>
+    }
 </div>
 
 <span class="sorted-by">Sorted by Recent Installs</span>

src/NuGetGallery/packages.config

@@ -51,8 +51,8 @@
   <package id="Ninject.Web.Common" version="3.0.0.7" targetFramework="net45" />
   <package id="NuGet.Core" version="2.8.1" targetFramework="net45" />
   <package id="NuGet.Services.Build" version="3.0.4-rel-4" targetFramework="net45" developmentDependency="true" />
-  <package id="NuGet.Services.Platform.Client" version="3.0.3-rel-0008" targetFramework="net45" />
-  <package id="NuGet.Services.Search.Client" version="3.0.3-rel-0015" targetFramework="net45" />
+  <package id="NuGet.Services.Platform.Client" version="3.0.11-r-master" targetFramework="net45" />
+  <package id="NuGet.Services.Search.Client" version="3.0.16-r-master" targetFramework="net45" />
   <package id="ODataNullPropagationVisitor" version="0.5.4237.2641" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="PoliteCaptcha" version="0.4.0.0" targetFramework="net45" />

tests/NuGetGallery.Facts/Controllers/CuratedFeedsControllerFacts.cs

@@ -213,7 +213,7 @@ public async Task WillSearchForAPackage()
 
                 controller.StubSearchService
                     .Setup(stub => stub.Search(It.IsAny<SearchFilter>()))
-                    .Returns(Task.FromResult(new SearchResults(mockPackages.Count(), mockPackages)));
+                    .Returns(Task.FromResult(new SearchResults(mockPackages.Count(), DateTime.UtcNow, mockPackages)));
 
                 var mockHttpContext = new Mock<HttpContextBase>();
                 TestUtility.SetupHttpContextMockForUrlGeneration(mockHttpContext, controller);

tests/NuGetGallery.Facts/Controllers/PackagesControllerFacts.cs

@@ -108,7 +108,7 @@ private static Mock<ISearchService> CreateSearchService()
         {
             var searchService = new Mock<ISearchService>();
             searchService.Setup(s => s.Search(It.IsAny<SearchFilter>())).Returns(
-                (IQueryable<Package> p, string searchTerm) => Task.FromResult(new SearchResults(p.Count(), p)));
+                (IQueryable<Package> p, string searchTerm) => Task.FromResult(new SearchResults(p.Count(), DateTime.UtcNow, p)));
 
             return searchService;
         }
@@ -574,7 +574,7 @@ public async Task TrimsSearchTerm()
             {
                 var searchService = new Mock<ISearchService>();
                 searchService.Setup(s => s.Search(It.IsAny<SearchFilter>())).Returns(
-                    Task.FromResult(new SearchResults(0)));
+                    Task.FromResult(new SearchResults(0, DateTime.UtcNow)));
                 var controller = CreateController(searchService: searchService);
                 controller.SetCurrentUser(TestUtility.FakeUser);
 

tests/NuGetGallery.Facts/Services/FeedServiceFacts.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using System.Web;
@@ -83,7 +84,7 @@ public void V1FeedSearchDoesNotReturnPrereleasePackages()
                     configuration.Setup(c => c.GetSiteRoot(It.IsAny<bool>())).Returns("https://localhost:8081/");
                     var searchService = new Mock<ISearchService>(MockBehavior.Strict);
                     searchService.Setup(s => s.Search(It.IsAny<SearchFilter>())).Returns
-                        <IQueryable<Package>, string>((_, __) => Task.FromResult(new SearchResults(_.Count(), _)));
+                        <IQueryable<Package>, string>((_, __) => Task.FromResult(new SearchResults(_.Count(), DateTime.UtcNow, _)));
                     searchService.Setup(s => s.ContainsAllVersions).Returns(false);
                     var v1Service = new TestableV1Feed(repo.Object, configuration.Object, searchService.Object);