Refactored CLI command running.

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectModification/ProjectNpmPackageAdder.cs

@@ -1,8 +1,8 @@
-using System.Diagnostics;
-using System.IO;
+using System.IO;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
+using Volo.Abp.Cli.Utils;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.IO;
 
@@ -29,13 +29,11 @@ namespace Volo.Abp.Cli.ProjectModification
 
             using (DirectoryHelper.ChangeCurrentDirectory(directory))
             {
-                Logger.LogInformation("yarn add " + npmPackage.Name + "... " + Directory.GetCurrentDirectory());
-                var procStartInfo = new ProcessStartInfo("cmd.exe", "/C yarn add " + npmPackage.Name);
-                Process.Start(procStartInfo).WaitForExit();
+                Logger.LogInformation("yarn add " + npmPackage.Name);
+                CmdHelper.RunCmd("yarn add " + npmPackage.Name);
 
-                Logger.LogInformation("gulp... " + Directory.GetCurrentDirectory());
-                procStartInfo = new ProcessStartInfo("cmd.exe", "/C gulp");
-                Process.Start(procStartInfo).WaitForExit();
+                Logger.LogInformation("gulp");
+                CmdHelper.RunCmd("gulp");
             }
 
             return Task.CompletedTask;

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectModification/ProjectNugetPackageAdder.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Net;
@@ -8,6 +7,7 @@ using System.Net.Http;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
+using Volo.Abp.Cli.Utils;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.IO;
 using Volo.Abp.Json;
@@ -50,8 +50,7 @@ namespace Volo.Abp.Cli.ProjectModification
             {
                 Logger.LogInformation($"Installing '{package.Name}' package to the project '{Path.GetFileNameWithoutExtension(projectFile)}'...");
 
-                var procStartInfo = new ProcessStartInfo("dotnet", "add package " + package.Name);
-                Process.Start(procStartInfo).WaitForExit();
+                CmdHelper.Run("dotnet", "add package " + package.Name);
 
                 var moduleFiles = ModuleClassFinder.Find(projectFile);
                 if (moduleFiles.Count == 0)

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/Utils/CmdHelper.cs

@@ -0,0 +1,19 @@
+using System.Diagnostics;
+
+namespace Volo.Abp.Cli.Utils
+{
+    public static class CmdHelper
+    {
+        public static void Run(string file, string arguments)
+        {
+            var procStartInfo = new ProcessStartInfo(file, arguments);
+            Process.Start(procStartInfo).WaitForExit();
+        }
+
+        public static void RunCmd(string command)
+        {
+            var procStartInfo = new ProcessStartInfo("cmd.exe", "/C " + command);
+            Process.Start(procStartInfo).WaitForExit();
+        }
+    }
+}

framework/src/Volo.Abp.Core/Volo/Abp/Check.cs

@@ -122,7 +122,7 @@ namespace Volo.Abp
         }
 
         public static string Length(
-            string value, 
+            [CanBeNull] string value,
             [InvokerParameterName] [NotNull] string parameterName, 
             int maxLength, 
             int minLength = 0)