refactor<*>: rewrite all codes...

src/Commands/Command.cs

@@ -0,0 +1,161 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace SourceGit.Commands {
+
+    /// <summary>
+    ///     取消命令执行的对象
+    /// </summary>
+    public class Cancellable {
+        public bool IsCancelRequested { get; set; } = false;
+    }
+
+    /// <summary>
+    ///     命令接口
+    /// </summary>
+    public class Command {
+
+        /// <summary>
+        ///     读取全部输出时的结果
+        /// </summary>
+        public class ReadToEndResult {
+            public bool IsSuccess { get; set; }
+            public string Output { get; set; }
+            public string Error { get; set; }
+        }
+
+        /// <summary>
+        ///     运行路径
+        /// </summary>
+        public string Cwd { get; set; } = "";
+
+        /// <summary>
+        ///     参数
+        /// </summary>
+        public string Args { get; set; } = "";
+
+        /// <summary>
+        ///     使用标准错误输出
+        /// </summary>
+        public bool TraitErrorAsOutput { get; set; } = false;
+
+        /// <summary>
+        ///     用于取消命令指行的Token
+        /// </summary>
+        public Cancellable Token { get; set; } = null;
+
+        /// <summary>
+        ///     运行
+        /// </summary>
+        public bool Exec() {
+            var start = new ProcessStartInfo();
+            start.FileName = Models.Preference.Instance.Git.Path;
+            start.Arguments = "--no-pager -c core.quotepath=off " + Args;
+            start.UseShellExecute = false;
+            start.CreateNoWindow = true;
+            start.RedirectStandardOutput = true;
+            start.RedirectStandardError = true;
+            start.StandardOutputEncoding = Encoding.UTF8;
+            start.StandardErrorEncoding = Encoding.UTF8;
+
+            if (!string.IsNullOrEmpty(Cwd)) start.WorkingDirectory = Cwd;
+
+            var progressFilter = new Regex(@"\d+\%");
+            var errs = new List<string>();
+            var proc = new Process() { StartInfo = start };
+            var isCancelled = false;
+
+            proc.OutputDataReceived += (o, e) => {
+                if (Token != null && Token.IsCancelRequested) {
+                    isCancelled = true;
+                    proc.CancelErrorRead();
+                    proc.CancelOutputRead();
+#if NET48
+                    proc.Kill();
+#else
+                    proc.Kill(true);
+#endif
+                    return;
+                }
+
+                if (e.Data == null) return;
+                OnReadline(e.Data);
+            };
+            proc.ErrorDataReceived += (o, e) => {
+                if (Token != null && Token.IsCancelRequested) {
+                    isCancelled = true;
+                    proc.CancelErrorRead();
+                    proc.CancelOutputRead();
+#if NET48
+                    proc.Kill();
+#else
+                    proc.Kill(true);
+#endif
+                    return;
+                }
+
+                if (e.Data == null) return;
+                if (TraitErrorAsOutput) OnReadline(e.Data);
+                
+                if (string.IsNullOrEmpty(e.Data)) return;
+                if (progressFilter.IsMatch(e.Data)) return;
+                if (e.Data.StartsWith("remote: Counting objects:", StringComparison.Ordinal)) return;
+                errs.Add(e.Data);
+            };
+
+            proc.Start();
+            proc.BeginOutputReadLine();
+            proc.BeginErrorReadLine();
+            proc.WaitForExit();
+
+            int exitCode = proc.ExitCode;
+            proc.Close();
+
+            if (!isCancelled && exitCode != 0 && errs.Count > 0) {
+                Models.Exception.Raise(string.Join("\n", errs));
+                return false;
+            } else {
+                return true;
+            }
+        }
+
+        /// <summary>
+        ///     直接读取全部标准输出
+        /// </summary>
+        public ReadToEndResult ReadToEnd() {
+            var start = new ProcessStartInfo();
+            start.FileName = Models.Preference.Instance.Git.Path;
+            start.Arguments = "--no-pager -c core.quotepath=off " + Args;
+            start.UseShellExecute = false;
+            start.CreateNoWindow = true;
+            start.RedirectStandardOutput = true;
+            start.RedirectStandardError = true;
+            start.StandardOutputEncoding = Encoding.UTF8;
+            start.StandardErrorEncoding = Encoding.UTF8;
+
+            if (!string.IsNullOrEmpty(Cwd)) start.WorkingDirectory = Cwd;
+            
+            var proc = new Process() { StartInfo = start };
+            proc.Start();
+
+            var rs = new ReadToEndResult();
+            rs.Output = proc.StandardOutput.ReadToEnd();
+            rs.Error = proc.StandardError.ReadToEnd();
+
+            proc.WaitForExit();
+            rs.IsSuccess = proc.ExitCode == 0;
+            proc.Close();
+
+            return rs;
+        }
+
+        /// <summary>
+        ///     调用Exec时的读取函数
+        /// </summary>
+        /// <param name="line"></param>
+        public virtual void OnReadline(string line) {}
+    }
+}