refactor<*>: rewrite all codes...

src/Commands/Fetch.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace SourceGit.Commands {
+
+    /// <summary>
+    ///     拉取
+    /// </summary>
+    public class Fetch : Command {
+        private Action<string> handler = null;
+
+        public Fetch(string repo, string remote, bool prune, Action<string> outputHandler) {
+            Cwd = repo;
+            TraitErrorAsOutput = true;
+            Args = "-c credential.helper=manager fetch --progress --verbose ";
+            if (prune) Args += "--prune ";
+            Args += remote;
+            handler = outputHandler;
+            AutoFetch.MarkFetched(repo);
+        }
+
+        public override void OnReadline(string line) {
+            handler?.Invoke(line);
+        }
+    }
+
+    /// <summary>
+    ///     自动拉取（每隔10分钟）
+    /// </summary>
+    public class AutoFetch {
+        private static Dictionary<string, AutoFetch> jobs = new Dictionary<string, AutoFetch>();
+
+        private Fetch cmd = null;
+        private long nextFetchPoint = 0;
+        private Timer timer = null;
+
+        public static void Start(string repo) {
+            if (!Models.Preference.Instance.General.AutoFetchRemotes) return;
+
+            // 只自动更新加入管理列表中的仓库（子模块等不自动更新）
+            var exists = Models.Preference.Instance.FindRepository(repo);
+            if (exists == null) return;
+
+            var job = new AutoFetch(repo);
+            jobs.Add(repo, job);
+        }
+
+        public static void MarkFetched(string repo) {
+            if (!jobs.ContainsKey(repo)) return;
+            jobs[repo].nextFetchPoint = DateTime.Now.AddMinutes(1).ToFileTime();
+        }
+
+        public static void Stop(string repo) {
+            if (!jobs.ContainsKey(repo)) return;
+
+            jobs[repo].timer.Dispose();
+            jobs.Remove(repo);
+        }
+
+        public AutoFetch(string repo) {
+            cmd = new Fetch(repo, "--all", true, null);
+            nextFetchPoint = DateTime.Now.AddMinutes(1).ToFileTime();
+            timer = new Timer(OnTick, null, 60000, 10000);
+        }
+
+        private void OnTick(object o) {
+            var now = DateTime.Now.ToFileTime();
+            if (nextFetchPoint > now) return;
+            
+            Models.Watcher.SetEnabled(cmd.Cwd, false);
+            cmd.Exec();
+            nextFetchPoint = DateTime.Now.AddMinutes(1).ToFileTime();
+            Models.Watcher.SetEnabled(cmd.Cwd, true);
+        }
+    }
+}