refactor<*>: rewrite all codes...

src/Commands/RevisionObjects.cs

@@ -0,0 +1,41 @@
+using System.Collections.Generic;
+using System.Text.RegularExpressions;
+
+namespace SourceGit.Commands {
+    /// <summary>
+    ///     取出指定Revision下的文件列表
+    /// </summary>
+    public class RevisionObjects : Command {
+        private static readonly Regex REG_FORMAT = new Regex(@"^\d+\s+(\w+)\s+([0-9a-f]+)\s+(.*)$");
+        private List<Models.Object> objects = new List<Models.Object>();
+
+        public RevisionObjects(string cwd, string sha) {
+            Cwd = cwd;
+            Args = $"ls-tree -r {sha}";
+        }
+
+        public List<Models.Object> Result() {
+            Exec();
+            return objects;
+        }
+
+        public override void OnReadline(string line) {
+            var match = REG_FORMAT.Match(line);
+            if (!match.Success) return;
+
+            var obj = new Models.Object();
+            obj.SHA = match.Groups[2].Value;
+            obj.Type = Models.ObjectType.Blob;
+            obj.Path = match.Groups[3].Value;
+
+            switch (match.Groups[1].Value) {
+            case "blob": obj.Type = Models.ObjectType.Blob; break;
+            case "tree": obj.Type = Models.ObjectType.Tree; break;
+            case "tag": obj.Type = Models.ObjectType.Tag; break;
+            case "commit": obj.Type = Models.ObjectType.Commit; break;
+            }
+
+            objects.Add(obj);
+        }
+    }
+}