Handle situation when repo has moved

If user tries to open a repo dir that no longer exists, let them find and open the solution manually.
There is no need to reset the selected repo if opening solution fails.

src/GitHub.Exports/Services/VSServices.cs

@@ -83,6 +83,13 @@ namespace GitHub.Services
         /// <returns>True if a transient solution was successfully created in target directory (which should trigger opening of repository).</returns>
         public bool TryOpenRepository(string repoPath)
         {
+            var os = serviceProvider.TryGetService<IOperatingSystem>();
+            if (os == null)
+            {
+                VsOutputLogger.WriteLine("TryOpenRepository couldn't find IOperatingSystem service.");
+                return false;
+            }
+
             var dte = serviceProvider.TryGetService<DTE>();
             if (dte == null)
             {
@@ -90,12 +97,16 @@ namespace GitHub.Services
                 return false;
             }
 
-            bool solutionCreated = false;
-            const string slnName = TempSolutionName;
+            var repoDir = os.Directory.GetDirectory(repoPath);
+            if(!repoDir.Exists)
+            {
+                return false;
+            }
 
+            bool solutionCreated = false;
             try
             {
-                dte.Solution.Create(repoPath, slnName);
+                dte.Solution.Create(repoPath, TempSolutionName);
                 solutionCreated = true;
 
                 dte.Solution.Close(false); // Don't create a .sln file when we close.
@@ -106,21 +117,13 @@ namespace GitHub.Services
             }
             finally
             {
-                TryCleanupSolutionUserFiles(repoPath, slnName);
+                TryCleanupSolutionUserFiles(os, repoPath, TempSolutionName);
             }
-
             return solutionCreated;
         }
 
-        void TryCleanupSolutionUserFiles(string repoPath, string slnName)
+        void TryCleanupSolutionUserFiles(IOperatingSystem os, string repoPath, string slnName)
         {
-            var os = serviceProvider.TryGetService<IOperatingSystem>();
-            if (os == null)
-            {
-                VsOutputLogger.WriteLine("TryOpenRepository couldn't find IOperatingSystem service.");
-                return;
-            }
-
             var vsTempPath = Path.Combine(repoPath, ".vs", slnName);
             try
             {

src/GitHub.TeamFoundation.14/Connect/GitHubConnectSection.cs

@@ -353,11 +353,10 @@ namespace GitHub.VisualStudio.TeamExplorer.Connect
                 var opened = vsServices.TryOpenRepository(SelectedRepository.LocalPath);
                 if (!opened)
                 {
-                    // Fall back to making the user select a solution to open.
+                    // TryOpenRepository might fail because dir no longer exists. Let user find solution themselves.
                     opened = ErrorHandler.Succeeded(ServiceProvider.GetSolution().OpenSolutionViaDlg(SelectedRepository.LocalPath, 1));
                     if (!opened)
                     {
-                        SelectedRepository = old;
                         return false;
                     }
                 }

src/UnitTests/GitHub.Exports/VSServicesTests.cs

@@ -14,9 +14,10 @@ public class VSServicesTests
         [Fact]
         public void NoExceptions_ReturnsTrue()
         {
-            var target = CreateVSServices();
+            var repoDir = @"x:\repo";
+            var target = CreateVSServices(repoDir);
 
-            var success = target.TryOpenRepository("");
+            var success = target.TryOpenRepository(repoDir);
 
             Assert.True(success);
         }
@@ -24,16 +25,32 @@ public class VSServicesTests
         [Fact]
         public void SolutionCreateThrows_ReturnsFalse()
         {
+            var repoDir = @"x:\repo";
             var dte = Substitute.For<DTE>();
             dte.Solution.When(s => s.Create(Arg.Any<string>(), Arg.Any<string>())).Do(
                 ci => { throw new COMException(); });
-            var target = CreateVSServices(dte: dte);
+            var target = CreateVSServices(repoDir, dte: dte);
 
             var success = target.TryOpenRepository("");
 
             Assert.False(success);
         }
 
+        [Fact]
+        public void RepoDirExistsFalse_ReturnFalse()
+        {
+            var repoDir = @"x:\repo";
+            var os = Substitute.For<IOperatingSystem>();
+            //var directoryInfo = Substitute.For<IDirectoryInfo>();
+            //directoryInfo.Exists.Returns(false);
+            //os.Directory.GetDirectory(repoDir).Returns(directoryInfo);
+            var target = CreateVSServices(null, os: os);
+
+            var success = target.TryOpenRepository(repoDir);
+
+            Assert.False(success);
+        }
+
         [Fact]
         public void DeleteThrowsIOException_ReturnTrue()
         {
@@ -45,7 +62,7 @@ public class VSServicesTests
             os.Directory.GetDirectory(tempDir).Returns(directoryInfo);
             directoryInfo.When(di => di.Delete(true)).Do(
                 ci => { throw new IOException(); });
-            var target = CreateVSServices(os: os);
+            var target = CreateVSServices(repoDir, os: os);
 
             var success = target.TryOpenRepository(repoDir);
 
@@ -61,17 +78,25 @@ public class VSServicesTests
             var directoryInfo = Substitute.For<IDirectoryInfo>();
             directoryInfo.Exists.Returns(true);
             os.Directory.GetDirectory(tempDir).Returns(directoryInfo);
-            var target = CreateVSServices(os: os);
+            var target = CreateVSServices(repoDir, os: os);
 
             var success = target.TryOpenRepository(repoDir);
 
             directoryInfo.Received().Delete(true);
         }
 
-        VSServices CreateVSServices(IOperatingSystem os = null, DTE dte = null)
+        VSServices CreateVSServices(string repoDir, IOperatingSystem os = null, DTE dte = null)
         {
             os = os ?? Substitute.For<IOperatingSystem>();
             dte = dte ?? Substitute.For<DTE>();
+
+            if (repoDir != null)
+            {
+                var directoryInfo = Substitute.For<IDirectoryInfo>();
+                directoryInfo.Exists.Returns(true);
+                os.Directory.GetDirectory(repoDir).Returns(directoryInfo);
+            }
+
             var provider = Substitute.For<IGitHubServiceProvider>();
             provider.TryGetService<DTE>().Returns(dte);
             provider.TryGetService<IOperatingSystem>().Returns(os);