Implement dotnet remove proj

src/dotnet/commands/dotnet-remove/dotnet-remove-proj/Program.cs

@@ -0,0 +1,101 @@
+// 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 Microsoft.DotNet.Cli.CommandLine;
+using Microsoft.DotNet.Cli.Sln.Internal;
+using Microsoft.DotNet.Cli.Utils;
+using Microsoft.DotNet.Tools.Common;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Microsoft.DotNet.Tools.Remove;
+
+namespace Microsoft.DotNet.Tools.Remove.ProjectFromSolution
+{
+    public class RemoveProjectFromSolution : IRemoveSubCommand
+    {
+        private SlnFile _slnFile;
+
+        public RemoveProjectFromSolution(string fileOrDirectory)
+        {
+            _slnFile = SlnFileFactory.CreateFromFileOrDirectory(fileOrDirectory);
+        }
+
+        public void Remove(IList<string> projectPaths)
+        {
+            if (projectPaths.Count == 0)
+            {
+                throw new GracefulException(CommonLocalizableStrings.SpecifyAtLeastOneProjectToRemove);
+            }
+
+            var relativeProjectPaths = projectPaths.Select((p) =>
+                PathUtility.GetRelativePath(
+                    PathUtility.EnsureTrailingSlash(_slnFile.BaseDirectory),
+                    Path.GetFullPath(p))).ToList();
+
+            bool slnChanged = false;
+            foreach (var path in relativeProjectPaths)
+            {
+                slnChanged |= RemoveProject(_slnFile, path);
+            }
+
+            if (slnChanged)
+            {
+                _slnFile.Write();
+            }
+        }
+
+        private static bool RemoveProject(SlnFile slnFile, string projectPath)
+        {
+            var projectPathNormalized = PathUtility.GetPathWithBackSlashes(projectPath);
+
+            var projectsToRemove = slnFile.Projects.Where((p) =>
+                    string.Equals(p.FilePath, projectPathNormalized, StringComparison.OrdinalIgnoreCase)).ToList();
+
+            bool projectRemoved = false;
+            if (projectsToRemove.Count == 0)
+            {
+                Reporter.Output.WriteLine(string.Format(
+                    CommonLocalizableStrings.ProjectReferenceCouldNotBeFound,
+                    projectPath));
+            }
+            else
+            {
+                foreach (var slnProject in projectsToRemove)
+                {
+                    slnFile.Projects.Remove(slnProject);
+                    Reporter.Output.WriteLine(
+                        string.Format(CommonLocalizableStrings.ProjectReferenceRemoved, slnProject.FilePath));
+                }
+
+                projectRemoved = true;
+            }
+
+            return projectRemoved;
+        }
+    }
+
+    public class RemoveProjectFromSolutionCommand : RemoveSubCommandBase
+    {
+        protected override string CommandName => "project";
+        protected override string LocalizedDisplayName => LocalizableStrings.AppFullName;
+        protected override string LocalizedDescription => LocalizableStrings.AppDescription;
+        protected override string LocalizedHelpText => LocalizableStrings.AppHelpText;
+
+        internal override void AddCustomOptions(CommandLineApplication app)
+        {
+        }
+
+        protected override IRemoveSubCommand CreateIRemoveSubCommand(string fileOrDirectory)
+        {
+            return new RemoveProjectFromSolution(fileOrDirectory);
+        }
+
+        internal static CommandLineApplication CreateApplication(CommandLineApplication parentApp)
+        {
+            var removeSubCommand = new RemoveProjectFromSolutionCommand();
+            return removeSubCommand.Create(parentApp);
+        }
+    }
+}