refactor<*>: rewrite all codes...

src/Commands/Clone.cs

@@ -0,0 +1,26 @@
+using System;
+
+namespace SourceGit.Commands {
+
+    /// <summary>
+    ///     克隆
+    /// </summary>
+    public class Clone : Command {
+        private Action<string> handler = null;
+
+        public Clone(string path, string url, string localName, string extraArgs, Action<string> outputHandler) {
+            Cwd = path;
+            TraitErrorAsOutput = true;
+            Args = "-c credential.helper=manager clone --progress --verbose --recurse-submodules ";
+            handler = outputHandler;
+
+            if (!string.IsNullOrEmpty(extraArgs)) Args += $"{extraArgs} ";
+            Args += $"{url} ";
+            if (!string.IsNullOrEmpty(localName)) Args += localName;
+        }
+
+        public override void OnReadline(string line) {
+            handler?.Invoke(line);
+        }
+    }
+}