Merge pull request #41 from walterlv/t/lindexi/PackageDirectory

删除文件夹时判断系统以及防止多次删除

src/Utils/Walterlv.IO.PackageManagement/PackageDirectory.cs

@@ -357,11 +357,7 @@ public static IOResult Delete(DirectoryInfo directory)
             var logger = new IOResult();
             logger.Log($"删除目录“{directory.FullName}”。");
 
-            if (JunctionPoint.Exists(directory.FullName))
-            {
-                JunctionPoint.Delete(directory.FullName);
-            }
-            else if (!Directory.Exists(directory.FullName))
+            if (!Directory.Exists(directory.FullName))
             {
                 logger.Log($"要删除的目录“{directory.FullName}”不存在。");
                 return logger;
@@ -371,14 +367,22 @@ public static IOResult Delete(DirectoryInfo directory)
 
             static void Delete(DirectoryInfo directory, int depth, IOResult logger)
             {
-                if (JunctionPoint.Exists(directory.FullName))
+                if
+                (
+#if NET6_0_OR_GREATER
+                    OperatingSystem.IsWindows() &&
+#endif
+                    JunctionPoint.Exists(directory.FullName)
+                )
                 {
                     JunctionPoint.Delete(directory.FullName);
+                    return;
                 }
 #if NET6_0_OR_GREATER
                 else if(directory.LinkTarget != null)
                 {
                     directory.Delete();
+                    return;
                 }
 #endif
                 else if (!Directory.Exists(directory.FullName))
@@ -395,7 +399,7 @@ static void Delete(DirectoryInfo directory, int depth, IOResult logger)
 
                     foreach (var directoryInfo in directory.EnumerateDirectories("*", SearchOption.TopDirectoryOnly))
                     {
-                        var back = string.Join("\\", Enumerable.Repeat("..", depth));
+                        //var back = string.Join("\\", Enumerable.Repeat("..", depth));
                         Delete(directoryInfo, depth + 1, logger);
                     }