Temp

src/Microsoft.DotNet.Cli.Utils/CommandResolution/LockFilePathCalculator.cs

@@ -0,0 +1,52 @@
+// 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;
+using System.IO;
+using Microsoft.Build.Execution;
+using NuGet.ProjectModel;
+
+namespace Microsoft.DotNet.Cli.Utils
+{
+    internal class LockFilePathCalculator
+    {
+        public string GetLockFilePath(string projectDirectory)
+        {
+            return ResolveLockFilePathUsingCSProj(projectDirectory) ??
+                ReturnProjectLockJson(projectDirectory);
+        }
+
+        private string ResolveLockFilePathUsingCSProj(string projectDirectory)
+        {
+            string csProjPath = GetCSProjPath(projectDirectory);
+            if(csProjPath != null)
+            {
+                ProjectInstance projectInstance = new ProjectInstance(csProjPath, null, null);
+            }
+
+            return null;
+        }
+
+        private string ReturnProjectLockJson(string projectDirectory)
+        {
+            return Path.Combine(projectDirectory, LockFileFormat.LockFileName);
+        }
+
+        private string GetCSProjPath(string projectDirectory)
+        {
+            string[] projectFiles = Directory.GetFiles(projectDirectory, "*.*proj");
+
+            if (projectFiles.Length == 0)
+            {
+                return null;
+            }
+            else if (projectFiles.Length > 1)
+            {
+                throw new InvalidOperationException(
+                    $"Specify which project file to use because this '{projectDirectory}' contains more than one project file.");
+            }
+
+            return projectFiles[0];
+        }
+    }
+}

src/Microsoft.DotNet.Cli.Utils/CommandResolution/ProjectToolsCommandResolver.cs

@@ -7,7 +7,6 @@ using Microsoft.DotNet.ProjectModel;
 using Microsoft.DotNet.Tools.Common;
 using Microsoft.Extensions.DependencyModel;
 using NuGet.Frameworks;
-using NuGet.LibraryModel;
 using NuGet.ProjectModel;
 using NuGet.Versioning;
 using FileFormatException = Microsoft.DotNet.ProjectModel.FileFormatException;