Enabled selecting repository

SeeGitApp/Extensions/WindowsExtensions.cs

@@ -0,0 +1,21 @@
+using Microsoft.WindowsAPICodePack.Dialogs;
+
+namespace SeeGit
+{
+    public static class WindowsExtensions
+    {
+        public static string BrowseForFolder(string startingPath)
+        {
+            var cfd = new CommonOpenFileDialog
+                      {
+                          DefaultFileName = startingPath,
+                          IsFolderPicker = true,
+                      };
+
+            if (cfd.ShowDialog() != CommonFileDialogResult.Ok) return null;
+
+            var ret = cfd.FileName;
+            return ret;
+        }
+    }
+}

SeeGitApp/MainWindow.xaml

@@ -31,8 +31,9 @@
         <Label VerticalAlignment="Center" VerticalContentAlignment="Center" Foreground="White" FontSize="10"
                FontFamily="Verdana" FontWeight="Bold" Margin="0,0,0,0" Content="Repository Path:" />
         <Label VerticalAlignment="Center" VerticalContentAlignment="Center" Foreground="White" FontSize="10"
-               FontFamily="Verdana" FontWeight="Bold" Margin="0,0,0,0" Content="c:\dev\git\Test" />
-      </StackPanel>
+               FontFamily="Verdana" FontWeight="Bold" Margin="0,0,0,0" Content="{Binding Path=RepositoryPath}" />
+                <Button Background="Gray" Foreground="White" HorizontalAlignment="Right" Margin="10 2 0 2" Padding="3" Click="OnChooseRepository">Browse For a Repository...</Button>
+            </StackPanel>
     </StackPanel>
 
     <zoom:ZoomControl Grid.Row="1" Zoom="0.2" ZoomBoxOpacity="0.5" Background="#ff656565">

SeeGitApp/MainWindow.xaml.cs

@@ -6,17 +6,52 @@ namespace SeeGit
 {
     public partial class MainWindow : Window
     {
-        private readonly FileSystemWatcher _watcher;
-        private readonly MainWindowViewModel _viewModel;
+        private FileSystemWatcher _watcher;
+        private MainWindowViewModel _viewModel;
+        private string _gitRepositoryPath;
 
         public MainWindow()
         {
-            const string gitRepositoryPath = @"C:\dev\git\Test";
+            InitializeComponent();
+        }
+
+        private void OnChooseRepository(object sender, RoutedEventArgs args)
+        {
+            DisposeWatcher();
 
-            var graphBuilder = new RepositoryGraphBuilder(gitRepositoryPath);
-            DataContext = _viewModel = new MainWindowViewModel(graphBuilder);
+            _gitRepositoryPath = WindowsExtensions.BrowseForFolder(@"c:\dev\git");
+
+            SetupGraphBuilder();
+
+            string gitDirectory = Path.Combine(_gitRepositoryPath, ".git");
+            if (Directory.Exists(gitDirectory))
+            {
+                SetupGitRepositoryWatcher(gitDirectory);
+            }
+            else
+            {
+                _watcher = new FileSystemWatcher(_gitRepositoryPath)
+                           {
+                               IncludeSubdirectories = true,
+                               EnableRaisingEvents = true,
+                               NotifyFilter =
+                                   NotifyFilters.CreationTime | NotifyFilters.DirectoryName 
+
+                           };
+
+                _watcher.Changed += (o, e) =>
+                                    {
+                                        if (!Directory.Exists(gitDirectory)) return;
+                                        DisposeWatcher();
+                                        Dispatcher.Invoke(new Action(SetupGraphBuilder));
+                                        SetupGitRepositoryWatcher(gitDirectory);
+                                    };
+            }
+        }
 
-            _watcher = new FileSystemWatcher(Path.Combine(gitRepositoryPath, ".git"))
+        private void SetupGitRepositoryWatcher(string gitDirectory)
+        {
+            _watcher = new FileSystemWatcher(gitDirectory)
                        {
                            IncludeSubdirectories = true,
                            EnableRaisingEvents = true,
@@ -29,8 +64,21 @@ public MainWindow()
                                     var vm = _viewModel;
                                     Dispatcher.Invoke(new Action(vm.Refresh), null);
                                 };
+        }
 
-            InitializeComponent();
+        private void SetupGraphBuilder()
+        {
+            var graphBuilder = new RepositoryGraphBuilder(_gitRepositoryPath);
+            DataContext = _viewModel = new MainWindowViewModel(graphBuilder, _gitRepositoryPath);
+        }
+
+        private void DisposeWatcher()
+        {
+            var oldWatcher = _watcher;
+            if (oldWatcher != null)
+            {
+                oldWatcher.Dispose();
+            }
         }
     }
 }

SeeGitApp/Models/IRepositoryGraphBuilder.cs

@@ -1,12 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
-namespace SeeGit
+namespace SeeGit
 {
     public interface IRepositoryGraphBuilder
     {
         RepositoryGraph Graph();
     }
-}
+}

SeeGitApp/Models/RepositoryGraphBuilder.cs

@@ -13,16 +13,29 @@ public class RepositoryGraphBuilder : IRepositoryGraphBuilder
         public RepositoryGraphBuilder(string gitRepositoryPath)
         {
             GitRepositoryPath = gitRepositoryPath;
-            _repository = new Repository(GitRepositoryPath);
+            try
+            {
+                _repository = new Repository(GitRepositoryPath);
+            }
+            catch (LibGit2Exception)
+            {
+            }
         }
 
         public string GitRepositoryPath { get; private set; }
 
         public RepositoryGraph Graph()
         {
+            if (_repository == null) return new RepositoryGraph();
+
             var commits =
                 _repository.Commits.QueryBy(new Filter {SortBy = GitSortOptions.Topological | GitSortOptions.Time});
 
+            if (!commits.Any())
+            {
+                _graph.Clear();
+                return _graph;
+            }
             AddCommitsToGraph(commits.First(), null);
 
             foreach (var branch in _repository.Branches.Where(branch => branch.Commits.Any()))

SeeGitApp/SeeGitApp.csproj

@@ -40,27 +40,36 @@
   <ItemGroup>
     <Reference Include="GraphSharp, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>Lib\GraphSharp.dll</HintPath>
+      <HintPath>..\Lib\GraphSharp.dll</HintPath>
     </Reference>
     <Reference Include="GraphSharp.Contracts, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>Lib\GraphSharp.Contracts.dll</HintPath>
+      <HintPath>..\Lib\GraphSharp.Contracts.dll</HintPath>
     </Reference>
     <Reference Include="GraphSharp.Controls, Version=1.0.4115.29430, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>Lib\GraphSharp.Controls.dll</HintPath>
+      <HintPath>..\Lib\GraphSharp.Controls.dll</HintPath>
     </Reference>
     <Reference Include="LibGit2Sharp">
       <HintPath>..\packages\LibGit2Sharp.0.8\lib\net35\LibGit2Sharp.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.Contracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=736440c9b414ea16, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>Lib\Microsoft.Contracts.dll</HintPath>
+      <HintPath>..\Lib\Microsoft.Contracts.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.Expression.Interactions" />
+    <Reference Include="Microsoft.Windows.Shell">
+      <HintPath>..\Lib\Microsoft.Windows.Shell.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.WindowsAPICodePack">
+      <HintPath>..\Lib\Microsoft.WindowsAPICodePack.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.WindowsAPICodePack.Shell">
+      <HintPath>..\Lib\Microsoft.WindowsAPICodePack.Shell.dll</HintPath>
+    </Reference>
     <Reference Include="QuickGraph, Version=3.2.40122.0, Culture=neutral, PublicKeyToken=f3fb40175eec2af3, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>Lib\QuickGraph.dll</HintPath>
+      <HintPath>..\Lib\QuickGraph.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
@@ -88,6 +97,7 @@
     </ApplicationDefinition>
     <Compile Include="Extensions\CaAdornerBehavior.cs" />
     <Compile Include="Extensions\ModelExtensions.cs" />
+    <Compile Include="Extensions\WindowsExtensions.cs" />
     <Compile Include="Models\IRepositoryGraphBuilder.cs" />
     <Compile Include="Models\RepositoryGraphBuilder.cs" />
     <Compile Include="Models\RepositoryGraphLayout.cs" />
@@ -142,14 +152,6 @@
     </None>
     <AppDesigner Include="Properties\" />
   </ItemGroup>
-  <ItemGroup>
-    <Content Include="Lib\GraphSharp.Contracts.dll" />
-    <Content Include="Lib\GraphSharp.Controls.dll" />
-    <Content Include="Lib\GraphSharp.dll" />
-    <Content Include="Lib\Microsoft.Contracts.dll" />
-    <Content Include="Lib\QuickGraph.dll" />
-    <Content Include="Lib\WPFExtensions.dll" />
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PostBuildEvent>

SeeGitApp/ViewModels/DesignTimeMainWindowViewModel.cs

@@ -4,7 +4,7 @@ namespace SeeGit
 {
     public class DesignTimeMainWindowViewModel : MainWindowViewModel
     {
-        public DesignTimeMainWindowViewModel() : base(new DesignTimeGraphBuilder())
+        public DesignTimeMainWindowViewModel() : base(new DesignTimeGraphBuilder(), @"c:\dev\git\fake")
         {
         }
     }

SeeGitApp/ViewModels/MainWindowViewModel.cs

@@ -8,11 +8,12 @@ public class MainWindowViewModel : INotifyPropertyChanged
         private RepositoryGraph _graph;
         private readonly IRepositoryGraphBuilder _graphBuilder;
 
-        public MainWindowViewModel(IRepositoryGraphBuilder graphBuilder)
+        public MainWindowViewModel(IRepositoryGraphBuilder graphBuilder, string repositoryPath)
         {
             _graphBuilder = graphBuilder;
+            RepositoryPath = repositoryPath;
             Graph = _graphBuilder.Graph();
-            LayoutAlgorithmType = "EfficientSugiyama";
+            LayoutAlgorithmType = "Tree";
                 // Tree, LinLog, KK, ISOM, EfficientSugiyama, FR, CompoundFDP, BoundedFR, Circular
         }
 
@@ -28,6 +29,8 @@ public RepositoryGraph Graph
             }
         }
 
+        public string RepositoryPath { get; private set;}
+
         public void Refresh()
         {
             Graph = _graphBuilder.Graph();