feature: allows to change DateTime format (#755)

src/Commands/Blame.cs

@@ -65,7 +65,7 @@ namespace SourceGit.Commands
             var commit = match.Groups[1].Value;
             var author = match.Groups[2].Value;
             var timestamp = int.Parse(match.Groups[3].Value);
-            var when = DateTime.UnixEpoch.AddSeconds(timestamp).ToLocalTime().ToString("yyyy/MM/dd");
+            var when = DateTime.UnixEpoch.AddSeconds(timestamp).ToLocalTime().ToString(_dateFormat);
 
             var info = new Models.BlameLineInfo()
             {
@@ -87,6 +87,7 @@ namespace SourceGit.Commands
 
         private readonly Models.BlameData _result = new Models.BlameData();
         private readonly StringBuilder _content = new StringBuilder();
+        private readonly string _dateFormat = Models.DateTimeFormat.Actived.DateOnly;
         private string _lastSHA = string.Empty;
         private bool _needUnifyCommitSHA = false;
         private int _minSHALen = 64;

src/Models/Commit.cs

@@ -31,9 +31,9 @@ namespace SourceGit.Models
         public List<Decorator> Decorators { get; set; } = new List<Decorator>();
         public bool HasDecorators => Decorators.Count > 0;
 
-        public string AuthorTimeStr => DateTime.UnixEpoch.AddSeconds(AuthorTime).ToLocalTime().ToString("yyyy/MM/dd HH:mm:ss");
+        public string AuthorTimeStr => DateTime.UnixEpoch.AddSeconds(AuthorTime).ToLocalTime().ToString(DateTimeFormat.Actived.DateTime);
-        public string CommitterTimeStr => DateTime.UnixEpoch.AddSeconds(CommitterTime).ToLocalTime().ToString("yyyy/MM/dd HH:mm:ss");
+        public string CommitterTimeStr => DateTime.UnixEpoch.AddSeconds(CommitterTime).ToLocalTime().ToString(DateTimeFormat.Actived.DateTime);
-        public string AuthorTimeShortStr => DateTime.UnixEpoch.AddSeconds(AuthorTime).ToLocalTime().ToString("yyyy/MM/dd");
+        public string AuthorTimeShortStr => DateTime.UnixEpoch.AddSeconds(AuthorTime).ToLocalTime().ToString(DateTimeFormat.Actived.DateOnly);
 
         public bool IsMerged { get; set; } = false;
         public bool IsCommitterVisible => !Author.Equals(Committer) || AuthorTime != CommitterTime;

src/Models/DateTimeFormat.cs

@@ -0,0 +1,45 @@
+using System.Collections.Generic;
+
+namespace SourceGit.Models
+{
+    public class DateTimeFormat
+    {
+        public string DisplayText { get; set; }
+        public string DateOnly { get; set; }
+        public string DateTime { get; set; }
+
+        public DateTimeFormat(string displayText, string dateOnly, string dateTime)
+        {
+            DisplayText = displayText;
+            DateOnly = dateOnly;
+            DateTime = dateTime;
+        }
+
+        public static int ActiveIndex
+        {
+            get;
+            set;
+        } = 0;
+
+        public static DateTimeFormat Actived
+        {
+            get => Supported[ActiveIndex];
+        }
+
+        public static readonly List<DateTimeFormat> Supported = new List<DateTimeFormat>
+        {
+            new DateTimeFormat("2025/01/31 08:00:00", "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss"),
+            new DateTimeFormat("2025.01.31 08:00:00", "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss"),
+            new DateTimeFormat("2025-01-31 08:00:00", "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss"),
+            new DateTimeFormat("01/31/2025 08:00:00", "MM/dd/yyyy", "MM/dd/yyyy HH:mm:ss"),
+            new DateTimeFormat("01.31.2025 08:00:00", "MM.dd.yyyy", "MM.dd.yyyy HH:mm:ss"),
+            new DateTimeFormat("01-31-2025 08:00:00", "MM-dd-yyyy", "MM-dd-yyyy HH:mm:ss"),
+            new DateTimeFormat("31/01/2025 08:00:00", "dd/MM/yyyy", "dd/MM/yyyy HH:mm:ss"),
+            new DateTimeFormat("31.01.2025 08:00:00", "dd.MM.yyyy", "dd.MM.yyyy HH:mm:ss"),
+            new DateTimeFormat("31-01-2025 08:00:00", "dd-MM-yyyy", "dd-MM-yyyy HH:mm:ss"),
+
+            new DateTimeFormat("Jun 31 2025 08:00:00", "MMM d yyyy", "MMM d yyyy HH:mm:ss"),
+            new DateTimeFormat("31 Jun 2025 08:00:00", "d MMM yyyy", "d MMM yyyy HH:mm:ss"),
+        };
+    }
+}

src/Models/Stash.cs

@@ -9,6 +9,6 @@ namespace SourceGit.Models
         public ulong Time { get; set; } = 0;
         public string Message { get; set; } = "";
 
-        public string TimeStr => DateTime.UnixEpoch.AddSeconds(Time).ToLocalTime().ToString("yyyy/MM/dd HH:mm:ss");
+        public string TimeStr => DateTime.UnixEpoch.AddSeconds(Time).ToLocalTime().ToString(DateTimeFormat.Actived.DateTime);
     }
 }

src/Resources/Locales/en_US.axaml

@@ -465,6 +465,7 @@
   <x:String x:Key="Text.Preference.DiffMerge.Type" xml:space="preserve">Tool</x:String>
   <x:String x:Key="Text.Preference.General" xml:space="preserve">GENERAL</x:String>
   <x:String x:Key="Text.Preference.General.Check4UpdatesOnStartup" xml:space="preserve">Check for updates on startup</x:String>
+  <x:String x:Key="Text.Preference.General.DateFormat" xml:space="preserve">Date Format</x:String>
   <x:String x:Key="Text.Preference.General.Locale" xml:space="preserve">Language</x:String>
   <x:String x:Key="Text.Preference.General.MaxHistoryCommits" xml:space="preserve">History Commits</x:String>
   <x:String x:Key="Text.Preference.General.ShowAuthorTime" xml:space="preserve">Show author time instead of commit time in graph</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -469,6 +469,7 @@
   <x:String x:Key="Text.Preference.DiffMerge.Type" xml:space="preserve">工具</x:String>
   <x:String x:Key="Text.Preference.General" xml:space="preserve">通用配置</x:String>
   <x:String x:Key="Text.Preference.General.Check4UpdatesOnStartup" xml:space="preserve">启动时检测软件更新</x:String>
+  <x:String x:Key="Text.Preference.General.DateFormat" xml:space="preserve">日期时间格式</x:String>
   <x:String x:Key="Text.Preference.General.Locale" xml:space="preserve">显示语言</x:String>
   <x:String x:Key="Text.Preference.General.MaxHistoryCommits" xml:space="preserve">最大历史提交数</x:String>
   <x:String x:Key="Text.Preference.General.ShowAuthorTime" xml:space="preserve">在提交路线图中显示修改时间而非提交时间</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -468,6 +468,7 @@
   <x:String x:Key="Text.Preference.DiffMerge.Type" xml:space="preserve">工具</x:String>
   <x:String x:Key="Text.Preference.General" xml:space="preserve">一般設定</x:String>
   <x:String x:Key="Text.Preference.General.Check4UpdatesOnStartup" xml:space="preserve">啟動時檢查軟體更新</x:String>
+  <x:String x:Key="Text.Preference.General.DateFormat" xml:space="preserve">日期時間格式</x:String>
   <x:String x:Key="Text.Preference.General.Locale" xml:space="preserve">顯示語言</x:String>
   <x:String x:Key="Text.Preference.General.MaxHistoryCommits" xml:space="preserve">最大歷史提交數</x:String>
   <x:String x:Key="Text.Preference.General.ShowAuthorTime" xml:space="preserve">在提交路線圖中顯示修改時間而非提交時間</x:String>

src/ViewModels/Preference.cs

@@ -129,6 +129,21 @@ namespace SourceGit.ViewModels
             set => SetProperty(ref _subjectGuideLength, value);
         }
 
+        public int DateTimeFormat
+        {
+            get => Models.DateTimeFormat.ActiveIndex;
+            set
+            {
+                if (value != Models.DateTimeFormat.ActiveIndex &&
+                    value >= 0 &&
+                    value < Models.DateTimeFormat.Supported.Count)
+                {
+                    Models.DateTimeFormat.ActiveIndex = value;
+                    OnPropertyChanged();
+                }
+            }
+        }
+
         public bool UseFixedTabWidth
         {
             get => _useFixedTabWidth;

src/Views/Blame.axaml.cs

@@ -37,6 +37,7 @@ namespace SourceGit.Views
                 {
                     var typeface = view.CreateTypeface();
                     var underlinePen = new Pen(Brushes.DarkOrange);
+                    var width = Bounds.Width;
 
                     foreach (var line in view.VisualLines)
                     {
@@ -64,16 +65,6 @@ namespace SourceGit.Views
                         context.DrawLine(underlinePen, new Point(x, y + shaLink.Baseline + 2), new Point(x + shaLink.Width, y + shaLink.Baseline + 2));
                         x += shaLink.Width + 8;
 
-                        var time = new FormattedText(
-                            info.Time,
-                            CultureInfo.CurrentCulture,
-                            FlowDirection.LeftToRight,
-                            typeface,
-                            _editor.FontSize,
-                            _editor.Foreground);
-                        context.DrawText(time, new Point(x, y));
-                        x += time.Width + 8;
-
                         var author = new FormattedText(
                             info.Author,
                             CultureInfo.CurrentCulture,
@@ -82,6 +73,15 @@ namespace SourceGit.Views
                             _editor.FontSize,
                             _editor.Foreground);
                         context.DrawText(author, new Point(x, y));
+
+                        var time = new FormattedText(
+                            info.Time,
+                            CultureInfo.CurrentCulture,
+                            FlowDirection.LeftToRight,
+                            typeface,
+                            _editor.FontSize,
+                            _editor.Foreground);
+                        context.DrawText(time, new Point(width - time.Width, y));
                     }
                 }
             }
@@ -116,15 +116,6 @@ namespace SourceGit.Views
                             Brushes.DarkOrange);
                         x += shaLink.Width + 8;
 
-                        var time = new FormattedText(
-                            info.Time,
-                            CultureInfo.CurrentCulture,
-                            FlowDirection.LeftToRight,
-                            typeface,
-                            _editor.FontSize,
-                            _editor.Foreground);
-                        x += time.Width + 8;
-
                         var author = new FormattedText(
                             info.Author,
                             CultureInfo.CurrentCulture,
@@ -132,7 +123,16 @@ namespace SourceGit.Views
                             typeface,
                             _editor.FontSize,
                             _editor.Foreground);
-                        x += author.Width;
+                        x += author.Width + 8;
+
+                        var time = new FormattedText(
+                            info.Time,
+                            CultureInfo.CurrentCulture,
+                            FlowDirection.LeftToRight,
+                            typeface,
+                            _editor.FontSize,
+                            _editor.Foreground);
+                        x += time.Width;
 
                         if (maxWidth < x)
                             maxWidth = x;

src/Views/FileHistories.axaml

@@ -78,7 +78,7 @@
           <DataTemplate DataType="m:Commit">
             <Border BorderBrush="{DynamicResource Brush.Border2}" BorderThickness="0,0,0,1" Padding="4">
               <Grid RowDefinitions="Auto,*">
-                <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto,Auto">
+                <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto,96">
                   <v:Avatar Grid.Column="0" Width="16" Height="16" VerticalAlignment="Center" IsHitTestVisible="False" User="{Binding Author}"/>
                   <TextBlock Grid.Column="1" Classes="primary" Text="{Binding Author.Name}" Margin="8,0,0,0" TextTrimming="CharacterEllipsis"/>
                   <TextBlock Grid.Column="2"
@@ -90,7 +90,7 @@
                              TextDecorations="Underline"
                              Margin="8,0,0,0"
                              PointerPressed="OnPressCommitSHA"/>
-                  <TextBlock Grid.Column="3" Classes="primary" Text="{Binding AuthorTimeShortStr}" Foreground="{DynamicResource Brush.FG2}" Margin="8,0,0,0"/>
+                  <TextBlock Grid.Column="3" Classes="primary" Text="{Binding AuthorTimeShortStr}" Foreground="{DynamicResource Brush.FG2}" HorizontalAlignment="Right"/>
                 </Grid>
 
                 <TextBlock Grid.Row="1" Classes="primary" Text="{Binding Subject}" VerticalAlignment="Bottom"/>

src/Views/Histories.axaml.cs

@@ -428,7 +428,7 @@ namespace SourceGit.Views
 
             var timestamp = UseAuthorTime ? commit.AuthorTime : commit.CommitterTime;
             if (ShowAsDateTime)
-                return DateTime.UnixEpoch.AddSeconds(timestamp).ToLocalTime().ToString("yyyy/MM/dd HH:mm:ss");
+                return DateTime.UnixEpoch.AddSeconds(timestamp).ToLocalTime().ToString(Models.DateTimeFormat.Actived.DateTime);
 
             var now = DateTime.Now;
             var localTime = DateTime.UnixEpoch.AddSeconds(timestamp).ToLocalTime();

src/Views/Preference.axaml

@@ -46,7 +46,7 @@
           <TabItem.Header>
             <TextBlock Classes="tab_header" Text="{DynamicResource Text.Preference.General}"/>
           </TabItem.Header>
-          <Grid Margin="8" RowDefinitions="32,32,32,32,32,32,Auto" ColumnDefinitions="Auto,*">
+          <Grid Margin="8" RowDefinitions="32,32,32,32,32,32,32,Auto" ColumnDefinitions="Auto,*">
             <TextBlock Grid.Row="0" Grid.Column="0"
                        Text="{DynamicResource Text.Preference.General.Locale}"
                        HorizontalAlignment="Right"
@@ -60,10 +60,27 @@
                       SelectedItem="{Binding Locale, Mode=TwoWay, Converter={x:Static c:StringConverters.ToLocale}}"/>
 
             <TextBlock Grid.Row="1" Grid.Column="0"
+                       Text="{DynamicResource Text.Preference.General.DateFormat}"
+                       HorizontalAlignment="Right"
+                       Margin="0,0,16,0"/>
+            <ComboBox Grid.Row="1" Grid.Column="1"
+                      MinHeight="28"
+                      Padding="8,0"
+                      HorizontalAlignment="Stretch"
+                      ItemsSource="{Binding Source={x:Static m:DateTimeFormat.Supported}}"
+                      SelectedIndex="{Binding DateTimeFormat, Mode=TwoWay}">
+              <ComboBox.ItemTemplate>
+                <DataTemplate x:DataType="{x:Type m:DateTimeFormat}">
+                  <TextBlock FontFamily="{DynamicResource Fonts.Monospace}" Text="{Binding DisplayText}"/>
+                </DataTemplate>
+              </ComboBox.ItemTemplate>
+            </ComboBox>
+            
+            <TextBlock Grid.Row="2" Grid.Column="0"
                        Text="{DynamicResource Text.Preference.Git.DefaultCloneDir}"
                        HorizontalAlignment="Right"
                        Margin="0,0,16,0"/>
-            <TextBox Grid.Row="1" Grid.Column="1"
+            <TextBox Grid.Row="2" Grid.Column="1"
                      Height="28"
                      CornerRadius="3"
                      Text="{Binding GitDefaultCloneDir, Mode=TwoWay}">
@@ -74,11 +91,11 @@
               </TextBox.InnerRightContent>
             </TextBox>
 
-            <TextBlock Grid.Row="2" Grid.Column="0"
+            <TextBlock Grid.Row="3" Grid.Column="0"
                        Text="{DynamicResource Text.Preference.General.SubjectGuideLength}"
                        HorizontalAlignment="Right"
                        Margin="0,0,16,0"/>
-            <NumericUpDown Grid.Row="2" Grid.Column="1"
+            <NumericUpDown Grid.Row="3" Grid.Column="1"
                            Minimum="50" Maximum="1000" Increment="1"
                            Height="28"
                            Padding="4"
@@ -87,11 +104,11 @@
                            CornerRadius="3"
                            Value="{Binding SubjectGuideLength, Mode=TwoWay}"/>
 
-            <TextBlock Grid.Row="3" Grid.Column="0"
+            <TextBlock Grid.Row="4" Grid.Column="0"
                        Text="{DynamicResource Text.Preference.General.MaxHistoryCommits}"
                        HorizontalAlignment="Right"
                        Margin="0,0,16,0"/>
-            <Grid Grid.Row="3" Grid.Column="1" ColumnDefinitions="*,64">
+            <Grid Grid.Row="4" Grid.Column="1" ColumnDefinitions="*,64">
               <Slider Grid.Column="0"
                       Minimum="5000" Maximum="100000"
                       TickPlacement="BottomRight" TickFrequency="5000"
@@ -106,17 +123,17 @@
                          Text="{Binding MaxHistoryCommits}"/>
             </Grid>
 
-            <CheckBox Grid.Row="4" Grid.Column="1"
+            <CheckBox Grid.Row="5" Grid.Column="1"
                       Height="32"
                       Content="{DynamicResource Text.Preference.General.ShowAuthorTime}"
                       IsChecked="{Binding Source={x:Static vm:Preference.Instance}, Path=ShowAuthorTimeInGraph, Mode=TwoWay}"/>
 
-            <CheckBox Grid.Row="5" Grid.Column="1"
+            <CheckBox Grid.Row="6" Grid.Column="1"
                       Height="32"
                       Content="{DynamicResource Text.Preference.General.ShowChildren}"
                       IsChecked="{Binding Source={x:Static vm:Preference.Instance}, Path=ShowChildren, Mode=TwoWay}"/>
 
-            <CheckBox Grid.Row="6" Grid.Column="1"
+            <CheckBox Grid.Row="7" Grid.Column="1"
                       Height="32"
                       Content="{DynamicResource Text.Preference.General.Check4UpdatesOnStartup}"
                       IsVisible="{x:Static s:App.IsCheckForUpdateCommandVisible}"