refactor<*>: rewrite all codes...

src/Commands/Commit.cs

@@ -0,0 +1,19 @@
+using System.IO;
+
+namespace SourceGit.Commands {
+    /// <summary>
+    ///     `git commit`命令
+    /// </summary>
+    public class Commit : Command {
+        private string msg = null;
+
+        public Commit(string repo, string message, bool amend) {
+            msg = Path.GetTempFileName();
+            File.WriteAllText(msg, message);
+
+            Cwd = repo;
+            Args = $"commit --file=\"{msg}\"";
+            if (amend) Args += " --amend --no-edit";
+        }
+    }
+}