Added files option

README.md

@@ -46,6 +46,7 @@ Options:
                      diag[nostic]
   --dry-run          Format files, but do not save changes to disk.
   --check            Terminate with non-zero exit code if any files need to be formatted in the workspace.
+  --files            The files to operate on. If none specified, all files in workspace will be operated on.
   --version          Display version information
 ```
 

src/CodeFormatter.cs

@@ -1,10 +1,11 @@
-// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the MIT license.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the MIT license.  See License.txt in the project root for license information.
 
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.CodeStyle;
@@ -22,7 +23,7 @@ internal static class CodeFormatter
     {
         private const int MaxLoggedWorkspaceWarnings = 5;
 
-        public static async Task<WorkspaceFormatResult> FormatWorkspaceAsync(ILogger logger, string solutionOrProjectPath, bool isSolution, bool logAllWorkspaceWarnings, bool saveFormattedFiles, CancellationToken cancellationToken)
+        public static async Task<WorkspaceFormatResult> FormatWorkspaceAsync(ILogger logger, string solutionOrProjectPath, bool isSolution, bool logAllWorkspaceWarnings, bool saveFormattedFiles, string[] filesToFormat, CancellationToken cancellationToken)
         {
             logger.LogInformation(string.Format(Resources.Formatting_code_files_in_workspace_0, solutionOrProjectPath));
 
@@ -74,7 +75,7 @@ public static async Task<WorkspaceFormatResult> FormatWorkspaceAsync(ILogger log
                 logger.LogTrace(Resources.Workspace_loaded_in_0_ms, workspaceStopwatch.ElapsedMilliseconds);
                 workspaceStopwatch.Restart();
 
-                (formatResult.ExitCode, formatResult.FileCount, formatResult.FilesFormatted) = await FormatFilesInWorkspaceAsync(logger, workspace, projectPath, codingConventionsManager, saveFormattedFiles, cancellationToken).ConfigureAwait(false);
+                (formatResult.ExitCode, formatResult.FileCount, formatResult.FilesFormatted) = await FormatFilesInWorkspaceAsync(logger, workspace, projectPath, codingConventionsManager, saveFormattedFiles, filesToFormat, cancellationToken).ConfigureAwait(false);
 
                 logger.LogDebug(Resources.Formatted_0_of_1_files_in_2_ms, formatResult.FilesFormatted, formatResult.FileCount, workspaceStopwatch.ElapsedMilliseconds);
             }
@@ -105,7 +106,7 @@ void LogWorkspaceWarnings(object sender, WorkspaceDiagnosticEventArgs args)
             }
         }
 
-        private static async Task<(int status, int fileCount, int filesFormatted)> FormatFilesInWorkspaceAsync(ILogger logger, Workspace workspace, string projectPath, ICodingConventionsManager codingConventionsManager, bool saveFormattedFiles, CancellationToken cancellationToken)
+        private static async Task<(int status, int fileCount, int filesFormatted)> FormatFilesInWorkspaceAsync(ILogger logger, Workspace workspace, string projectPath, ICodingConventionsManager codingConventionsManager, bool saveFormattedFiles, string[] filesToFormat, CancellationToken cancellationToken)
         {
             var projectIds = workspace.CurrentSolution.ProjectIds.ToImmutableArray();
             var optionsApplier = new EditorConfigOptionsApplier();
@@ -129,7 +130,7 @@ void LogWorkspaceWarnings(object sender, WorkspaceDiagnosticEventArgs args)
 
                 logger.LogInformation(Resources.Formatting_code_files_in_project_0, project.Name);
 
-                var (formattedSolution, filesFormatted) = await FormatFilesInProjectAsync(logger, project, codingConventionsManager, optionsApplier, cancellationToken).ConfigureAwait(false);
+                var (formattedSolution, filesFormatted) = await FormatFilesInProjectAsync(logger, project, codingConventionsManager, optionsApplier, filesToFormat, cancellationToken).ConfigureAwait(false);
                 totalFileCount += project.DocumentIds.Count;
                 totalFilesFormatted += filesFormatted;
                 if (saveFormattedFiles && !workspace.TryApplyChanges(formattedSolution))
@@ -142,7 +143,7 @@ void LogWorkspaceWarnings(object sender, WorkspaceDiagnosticEventArgs args)
             return (0, totalFileCount, totalFilesFormatted);
         }
 
-        private static async Task<(Solution solution, int filesFormatted)> FormatFilesInProjectAsync(ILogger logger, Project project, ICodingConventionsManager codingConventionsManager, EditorConfigOptionsApplier optionsApplier, CancellationToken cancellationToken)
+        private static async Task<(Solution solution, int filesFormatted)> FormatFilesInProjectAsync(ILogger logger, Project project, ICodingConventionsManager codingConventionsManager, EditorConfigOptionsApplier optionsApplier, string[] filesToFormat, CancellationToken cancellationToken)
         {
             var isCommentTrivia = project.Language == LanguageNames.CSharp
                 ? IsCSharpCommentTrivia
@@ -157,6 +158,18 @@ void LogWorkspaceWarnings(object sender, WorkspaceDiagnosticEventArgs args)
                     continue;
                 }
 
+                if (filesToFormat != null)
+                {
+                    var fileInArgumentList = filesToFormat
+                        .Select(path => Path.GetRelativePath(Environment.CurrentDirectory, path))
+                        .Any(relativePath => document.FilePath.EndsWith(relativePath, StringComparison.OrdinalIgnoreCase));
+
+                    if (!fileInArgumentList)
+                    {
+                        continue;
+                    }
+                }
+
                 var formatTask = Task.Run(async () =>
                 {
                     var syntaxTree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);

src/Program.cs

@@ -33,13 +33,14 @@ private static async Task<int> Main(string[] args)
                 .AddOption(new Option(new[] { "-v", "--verbosity" }, Resources.Set_the_verbosity_level_Allowed_values_are_quiet_minimal_normal_detailed_and_diagnostic, new Argument<string>() { Arity = ArgumentArity.ExactlyOne }.FromAmong(_verbosityLevels)))
                 .AddOption(new Option(new[] { "--dry-run" }, Resources.Format_files_but_do_not_save_changes_to_disk, new Argument<bool>()))
                 .AddOption(new Option(new[] { "--check" }, Resources.Terminate_with_non_zero_exit_code_if_any_files_need_to_be_formatted_in_the_workspace, new Argument<bool>()))
+                .AddOption(new Option(new[] { "--files" }, Resources.The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on, new Argument<string>(() => null)))
                 .UseVersionOption()
                 .Build();
 
             return await parser.InvokeAsync(args).ConfigureAwait(false);
         }
 
-        public static async Task<int> Run(string workspace, string verbosity, bool dryRun, bool check, IConsole console = null)
+        public static async Task<int> Run(string workspace, string verbosity, bool dryRun, bool check, string files, IConsole console = null)
         {
             var serviceCollection = new ServiceCollection();
             var logLevel = GetLogLevel(verbosity);
@@ -70,6 +71,8 @@ public static async Task<int> Run(string workspace, string verbosity, bool dryRu
                 var workspaceDirectory = Path.GetDirectoryName(workspacePath);
                 Environment.CurrentDirectory = workingDirectory;
 
+                var fileList = GetFileList(files);
+
                 // Since we are running as a dotnet tool we should be able to find an instance of
                 // MSBuild in a .NET Core SDK.
                 var msBuildInstance = Build.Locator.MSBuildLocator.QueryVisualStudioInstances().First();
@@ -88,6 +91,7 @@ public static async Task<int> Run(string workspace, string verbosity, bool dryRu
                     isSolution,
                     logAllWorkspaceWarnings: logLevel == LogLevel.Trace,
                     saveFormattedFiles: !dryRun,
+                    filesToFormat: fileList,
                     cancellationTokenSource.Token).ConfigureAwait(false);
 
                 return GetExitCode(formatResult, check);
@@ -142,5 +146,10 @@ private static void ConfigureServices(ServiceCollection serviceCollection, ICons
             serviceCollection.AddSingleton(new LoggerFactory().AddSimpleConsole(console, logLevel));
             serviceCollection.AddLogging();
         }
+
+        private static string[] GetFileList(string files)
+        {
+            return files?.Split(',');
+        }
     }
 }

src/Resources.resx

@@ -186,4 +186,7 @@
   <data name="Terminate_with_non_zero_exit_code_if_any_files_need_to_be_formatted_in_the_workspace" xml:space="preserve">
     <value>Terminate with non-zero exit code if any files need to be formatted in the workspace.</value>
   </data>
+  <data name="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on" xml:space="preserve">
+    <value>The files to operate on. If none specified, all files in workspace will be operated on.</value>
+  </data>
 </root>

src/xlf/Resources.cs.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Pracovní prostor se načetl za {0} ms.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.de.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Arbeitsbereich in {0} ms geladen.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.es.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Espacio de trabajo cargado en {0} ms.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.fr.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Espace de travail chargé en {0} ms.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.it.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Area di lavoro caricata in {0} ms.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.ja.xlf

@@ -117,6 +117,11 @@
         <target state="translated">ワークスペース {0} ミリ秒で読み込まれます。</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.ko.xlf

@@ -117,6 +117,11 @@
         <target state="translated">작업 영역이 {0}밀리초 안에 로드되었습니다.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.pl.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Obszar roboczy załadowano w {0} ms.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.pt-BR.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Espaço de trabalho carregado em {0}ms.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.ru.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Рабочая область загружена за {0} мс.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.tr.xlf

@@ -117,6 +117,11 @@
         <target state="translated">Çalışma alanı {0} ms yüklü.</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.zh-Hans.xlf

@@ -117,6 +117,11 @@
         <target state="translated">工作区已在 {0} 毫秒内加载完毕。</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>

src/xlf/Resources.zh-Hant.xlf

@@ -117,6 +117,11 @@
         <target state="translated">{0} 毫秒內載入的工作區。</target>
         <note />
       </trans-unit>
+      <trans-unit id="The_files_to_operate_on_If_none_specified_all_files_in_workspace_will_be_operated_on">
+        <source>The files to operate on. If none specified, all files in workspace will be operated on.</source>
+        <target state="new">The files to operate on. If none specified, all files in workspace will be operated on.</target>
+        <note />
+      </trans-unit>
     </body>
   </file>
 </xliff>