feature: add -p:EnablePortable=true option for dotnet publish command to store app data portable (#834)

src/Native/OS.cs

@@ -1,5 +1,8 @@
 using System;
 using System.Collections.Generic;
+#if ENABLE_PORTABLE
+using System.Diagnostics;
+#endif
 using System.IO;
 
 using Avalonia;
@@ -55,6 +58,16 @@ namespace SourceGit.Native
 
         public static void SetupDataDir()
         {
+#if ENABLE_PORTABLE
+            if (OperatingSystem.IsWindows())
+            {
+                var execFile = Process.GetCurrentProcess().MainModule!.FileName;
+                DataDir = Path.Combine(Path.GetDirectoryName(execFile), "data");
+                if (!Directory.Exists(DataDir))
+                    Directory.CreateDirectory(DataDir);
+                return;
+            }
+#endif
             var osAppDataDir = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
             if (string.IsNullOrEmpty(osAppDataDir))
                 DataDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".sourcegit");

src/SourceGit.csproj

@@ -30,6 +30,10 @@
     <DefineConstants>$(DefineConstants);DISABLE_UPDATE_DETECTION</DefineConstants>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(EnablePortable)' == 'true'">
+    <DefineConstants>$(DefineConstants);ENABLE_PORTABLE</DefineConstants>
+  </PropertyGroup>
+
   <ItemGroup>
     <AvaloniaResource Include="App.ico" />
     <AvaloniaResource Include="Resources/Fonts/*" />