Upgrade project style

SourceGit/App.xaml.cs

@@ -0,0 +1,134 @@
+using Microsoft.Win32;
+using System;
+using System.IO;
+using System.Windows;
+
+namespace SourceGit {
+
+    /// <summary>
+    ///     Application.
+    /// </summary>
+    public partial class App : Application {
+
+        /// <summary>
+        ///     Getter/Setter for Git preference.
+        /// </summary>
+        public static Git.Preference Preference {
+            get { return Git.Preference.Instance; }
+            set { Git.Preference.Instance = value; }
+        }
+
+        /// <summary>
+        ///     Check if GIT has been configured.
+        /// </summary>
+        public static bool IsGitConfigured {
+            get {
+                return !string.IsNullOrEmpty(Preference.GitExecutable)
+                    && File.Exists(Preference.GitExecutable);
+            }
+        }
+
+        /// <summary>
+        ///     Interactive rebase sequence file.
+        /// </summary>
+        public static string InteractiveRebaseScript {
+            get;
+            private set;
+        }
+
+        /// <summary>
+        ///     TODO file for interactive rebase.
+        /// </summary>
+        public static string InteractiveRebaseTodo {
+            get;
+            private set;
+        }
+
+        /// <summary>
+        ///     Error handler.
+        /// </summary>
+        public static Action<string> OnError {
+            get;
+            set;
+        }
+
+        /// <summary>
+        ///     Raise error message.
+        /// </summary>
+        /// <param name="message"></param>
+        public static void RaiseError(string message) {
+            OnError?.Invoke(message);
+        }
+
+        /// <summary>
+        ///     Startup event.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void OnAppStartup(object sender, StartupEventArgs e) {
+            // Try auto configure git via registry.
+            if (!IsGitConfigured) {
+                var root = RegistryKey.OpenBaseKey(
+                    RegistryHive.LocalMachine,
+                    Environment.Is64BitOperatingSystem ? RegistryView.Registry64 : RegistryView.Registry32);
+
+                var git = root.OpenSubKey("SOFTWARE\\GitForWindows");
+                if (git != null) {
+                    Preference.GitExecutable = Path.Combine(
+                        git.GetValue("InstallPath") as string, 
+                        "bin", 
+                        "git.exe");
+                }
+            }
+
+            // Files for interactive rebase.
+            InteractiveRebaseScript = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                "SourceGit",
+                "rebase.bat");
+            InteractiveRebaseTodo = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                "SourceGit",
+                "REBASE_TODO");
+            if (!File.Exists(InteractiveRebaseScript)) {
+                var folder = Path.GetDirectoryName(InteractiveRebaseScript);
+                if (!Directory.Exists(folder)) Directory.CreateDirectory(folder);
+
+                File.WriteAllText(InteractiveRebaseScript, $"@echo off\ntype \"{InteractiveRebaseTodo}\" > .git\\rebase-merge\\git-rebase-todo");
+                File.WriteAllText(InteractiveRebaseTodo, "");
+            }
+
+            // Apply themes
+            if (Preference.UIUseLightTheme) {
+                foreach (var rs in Current.Resources.MergedDictionaries) {
+                    if (rs.Source != null && rs.Source.OriginalString.StartsWith("pack://application:,,,/Resources/Themes/")) {
+                        rs.Source = new Uri("pack://application:,,,/Resources/Themes/Light.xaml", UriKind.Absolute);
+                        break;
+                    }
+                }
+            }
+
+            // Show main window
+            var launcher = new UI.Launcher();
+            launcher.Show();
+        }
+
+        /// <summary>
+        ///     Deactivated event.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void OnAppDeactivated(object sender, EventArgs e) {
+            GC.Collect();
+        }
+
+        /// <summary>
+        ///     Quit event.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void OnAppExit(object sender, ExitEventArgs e) {
+            Git.Preference.Save();
+        }
+    }
+}