feature: supports to scan custom directory (#1696)

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/Resources/Locales/en_US.axaml

@@ -733,6 +733,7 @@
   <x:String x:Key="Text.SaveAsPatchSuccess" xml:space="preserve">Patch has been saved successfully!</x:String>
   <x:String x:Key="Text.ScanRepositories" xml:space="preserve">Scan Repositories</x:String>
   <x:String x:Key="Text.ScanRepositories.RootDir" xml:space="preserve">Root Dir:</x:String>
+  <x:String x:Key="Text.ScanRepositories.UseCustomDir" xml:space="preserve">Scan another custom directory</x:String>
   <x:String x:Key="Text.SelfUpdate" xml:space="preserve">Check for Updates...</x:String>
   <x:String x:Key="Text.SelfUpdate.Available" xml:space="preserve">New version of this software is available: </x:String>
   <x:String x:Key="Text.SelfUpdate.Error" xml:space="preserve">Check for updates failed!</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -737,6 +737,7 @@
   <x:String x:Key="Text.SaveAsPatchSuccess" xml:space="preserve">补丁已成功保存！</x:String>
   <x:String x:Key="Text.ScanRepositories" xml:space="preserve">扫描仓库</x:String>
   <x:String x:Key="Text.ScanRepositories.RootDir" xml:space="preserve">根路径 ：</x:String>
+  <x:String x:Key="Text.ScanRepositories.UseCustomDir" xml:space="preserve">扫描其他自定义路径</x:String>
   <x:String x:Key="Text.SelfUpdate" xml:space="preserve">检测更新...</x:String>
   <x:String x:Key="Text.SelfUpdate.Available" xml:space="preserve">检测到软件有版本更新: </x:String>
   <x:String x:Key="Text.SelfUpdate.Error" xml:space="preserve">获取最新版本信息失败！</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -737,6 +737,7 @@
   <x:String x:Key="Text.SaveAsPatchSuccess" xml:space="preserve">修補檔已成功儲存!</x:String>
   <x:String x:Key="Text.ScanRepositories" xml:space="preserve">掃描存放庫</x:String>
   <x:String x:Key="Text.ScanRepositories.RootDir" xml:space="preserve">頂層目錄:</x:String>
+  <x:String x:Key="Text.ScanRepositories.UseCustomDir" xml:space="preserve">掃描其他自訂目錄</x:String>
   <x:String x:Key="Text.SelfUpdate" xml:space="preserve">檢查更新...</x:String>
   <x:String x:Key="Text.SelfUpdate.Available" xml:space="preserve">軟體有版本更新:</x:String>
   <x:String x:Key="Text.SelfUpdate.Error" xml:space="preserve">取得最新版本資訊失敗!</x:String>

src/ViewModels/ScanRepositories.cs

@@ -8,6 +8,18 @@ namespace SourceGit.ViewModels
 {
     public class ScanRepositories : Popup
     {
+        public bool UseCustomDir
+        {
+            get => _useCustomDir;
+            set => SetProperty(ref _useCustomDir, value);
+        }
+
+        public string CustomDir
+        {
+            get => _customDir;
+            set => SetProperty(ref _customDir, value);
+        }
+
         public List<Models.ScanDir> ScanDirs
         {
             get;
@@ -33,16 +45,28 @@ public ScanRepositories()
 
             if (ScanDirs.Count > 0)
                 _selected = ScanDirs[0];
+            else
+                _useCustomDir = true;
 
             GetManagedRepositories(Preferences.Instance.RepositoryNodes, _managed);
         }
 
         public override async Task<bool> Sure()
         {
-            ProgressDescription = $"Scan repositories under '{_selected.Path}' ...";
+            var selectedDir = _useCustomDir ? _customDir : _selected?.Path;
+            if (string.IsNullOrEmpty(selectedDir))
+            {
+                App.RaiseException(null, "Missing root directory to scan!");
+                return false;
+            }
+
+            if (!Directory.Exists(selectedDir))
+                return true;
+
+            ProgressDescription = $"Scan repositories under '{selectedDir}' ...";
 
             var minDelay = Task.Delay(500);
-            var rootDir = new DirectoryInfo(_selected.Path);
+            var rootDir = new DirectoryInfo(selectedDir);
             var found = new List<string>();
 
             await GetUnmanagedRepositoriesAsync(rootDir, found, new EnumerationOptions()
@@ -162,6 +186,8 @@ private RepositoryNode FindOrCreateGroup(List<RepositoryNode> collection, string
         }
 
         private HashSet<string> _managed = new();
+        private bool _useCustomDir = false;
+        private string _customDir = string.Empty;
         private Models.ScanDir _selected = null;
     }
 }

src/Views/ScanRepositories.axaml

@@ -11,7 +11,7 @@
     <TextBlock FontSize="18"
                Classes="bold"
                Text="{DynamicResource Text.ScanRepositories}"/>
-    <Grid Margin="0,16,0,0" RowDefinitions="32" ColumnDefinitions="120,*">
+    <Grid Margin="0,16,0,0" RowDefinitions="32,32" ColumnDefinitions="120,*">
       <TextBlock Grid.Row="0" Grid.Column="0"
                  HorizontalAlignment="Right" VerticalAlignment="Center"
                  Margin="0,0,8,0"
@@ -20,7 +20,8 @@
                 Height="28" Padding="4,0"
                 VerticalAlignment="Center" HorizontalAlignment="Stretch"
                 ItemsSource="{Binding ScanDirs, Mode=OneWay}"
-                SelectedItem="{Binding Selected, Mode=TwoWay}">
+                SelectedItem="{Binding Selected, Mode=TwoWay}"
+                IsVisible="{Binding !UseCustomDir, Mode=OneWay}">
         <ComboBox.ItemTemplate>
           <DataTemplate DataType="m:ScanDir">
             <Grid ColumnDefinitions="20,*,Auto">
@@ -38,6 +39,21 @@
           </DataTemplate>
         </ComboBox.ItemTemplate>
       </ComboBox>
+      <TextBox Grid.Row="0" Grid.Column="1"
+               Height="28"
+               CornerRadius="3"
+               Text="{Binding CustomDir, Mode=TwoWay}"
+               IsVisible="{Binding UseCustomDir, Mode=OneWay}">
+        <TextBox.InnerRightContent>
+          <Button Classes="icon_button" Width="30" Height="30" Click="OnSelectRootDir">
+            <Path Data="{StaticResource Icons.Folder.Open}" Fill="{DynamicResource Brush.FG1}"/>
+          </Button>
+        </TextBox.InnerRightContent>
+      </TextBox>
+
+      <CheckBox Grid.Row="1" Grid.Column="1"
+                Content="{DynamicResource Text.ScanRepositories.UseCustomDir}"
+                IsChecked="{Binding UseCustomDir, Mode=TwoWay}"/>
     </Grid>
   </StackPanel>
 </UserControl>

src/Views/ScanRepositories.axaml.cs

@@ -1,4 +1,8 @@
+using System;
+
 using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Platform.Storage;
 
 namespace SourceGit.Views
 {
@@ -8,5 +12,33 @@ public ScanRepositories()
         {
             InitializeComponent();
         }
+
+        private async void OnSelectRootDir(object _, RoutedEventArgs e)
+        {
+            var provider = TopLevel.GetTopLevel(this)?.StorageProvider;
+            if (provider == null)
+                return;
+
+            if (DataContext is not ViewModels.ScanRepositories vm)
+                return;
+
+            var options = new FolderPickerOpenOptions() { AllowMultiple = false };
+            try
+            {
+                var selected = await provider.OpenFolderPickerAsync(options);
+                if (selected.Count == 1)
+                {
+                    var folder = selected[0];
+                    var folderPath = folder is { Path: { IsAbsoluteUri: true } path } ? path.LocalPath : folder?.Path.ToString();
+                    vm.CustomDir = folderPath;
+                }
+            }
+            catch (Exception ex)
+            {
+                App.RaiseException(string.Empty, $"Failed to select root scanning directory: {ex.Message}");
+            }
+
+            e.Handled = true;
+        }
     }
 }