Make FindContextFromUrl recognize repository URLs

Author: jcansdale

src/GitHub.App/Services/GitHubContextService.cs

@@ -124,7 +124,15 @@ public GitHubContext FindContextFromUrl(string url)
                 Url = uri
             };
 
-            var repositoryPrefix = uri.ToRepositoryUrl().ToString() + "/";
+            var repositoryUrl = uri.ToRepositoryUrl().ToString();
+            if (string.Equals(url, repositoryUrl, StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(url, repositoryUrl + ".git", StringComparison.OrdinalIgnoreCase))
+            {
+                context.LinkType = LinkType.Repository;
+                return context;
+            }
+
+            var repositoryPrefix = repositoryUrl + "/";
             if (!url.StartsWith(repositoryPrefix, StringComparison.OrdinalIgnoreCase))
             {
                 return context;

src/GitHub.Exports/Exports/ExportMetadata.cs

@@ -21,7 +21,8 @@ public enum LinkType
     {
         Unknown,
         Blob,
-        Blame
+        Blame,
+        Repository
     }
 
     /// <summary>

test/GitHub.App.UnitTests/Services/GitHubContextServiceTests.cs

@@ -133,6 +133,9 @@ public void Url_EqualTo(string url, string expectUrl)
             Assert.That(context.Url?.ToString(), Is.EqualTo(expectUrl));
         }
 
+        [TestCase("https://github.com/github/VisualStudio", LinkType.Repository)]
+        [TestCase("https://github.com/github/VisualStudio.git", LinkType.Repository)]
+        [TestCase("https://github.com/github/VisualStudio/unknown/master/README.md", LinkType.Unknown)]
         [TestCase("https://github.com/github/VisualStudio/blob/master/README.md", LinkType.Blob)]
         [TestCase("https://github.com/github/VisualStudio/unknown/master/README.md", LinkType.Unknown)]
         public void LinkType_EqualTo(string url, LinkType expectLinkType)