Implicit restore for build, pack, publish, run and test.

src/dotnet/commands/RestoringCommand.cs

@@ -0,0 +1,40 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.DotNet.Tools.MSBuild;
+using Microsoft.DotNet.Tools.Restore;
+
+namespace Microsoft.DotNet.Tools
+{
+    public class RestoringCommand : MSBuildForwardingApp
+    {
+        private bool NoRestore { get; }
+
+        private IEnumerable<string> ArgsToForward { get; }
+
+        public RestoringCommand(IEnumerable<string> msbuildArgs, bool noRestore, string msbuildPath = null)
+            : base(msbuildArgs, msbuildPath)
+        {
+            NoRestore = noRestore;
+            ArgsToForward = msbuildArgs;
+        }
+
+        public override int Execute()
+        {
+            if (ShouldRunImplicitRestore)
+            {
+                int exitCode = RestoreCommand.Run(ArgsToForward.ToArray());
+                if (exitCode != 0)
+                {
+                    return exitCode;
+                }
+            }
+
+            return base.Execute();
+        }
+
+        private bool ShouldRunImplicitRestore => !NoRestore;
+    }
+}