Fix xcode command plugin

Plugins/SwiftFormatPlugin/SwiftFormatPluginXcode.swift

@@ -0,0 +1,52 @@
+//
+//  SwiftFormatPluginXcode.swift
+//  SwiftFormat
+//
+//  Created by Marco Eidinger
+//  Copyright 2022 Nick Lockwood
+//
+//  Distributed under the permissive MIT license
+//  Get the latest version from here:
+//
+//  https://github.com/nicklockwood/SwiftFormat
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import Foundation
+import PackagePlugin
+
+#if swift(>=5.6) && canImport(XcodeProjectPlugin)
+    import XcodeProjectPlugin
+
+    extension SwiftFormatPlugin: XcodeCommandPlugin {
+        /// This entry point is called when operating on an Xcode project.
+        func performCommand(context: XcodePluginContext, arguments: [String]) throws {
+            if arguments.contains("--verbose") {
+                print("Command plugin execution with arguments \(arguments.description) for Swift package \(context.xcodeProject.displayName). All target information: \(context.xcodeProject.targets.description)")
+                print("Plugin will run for directory: \(context.xcodeProject.directory.description)")
+            }
+
+            var argExtractor = ArgumentExtractor(arguments)
+            _ = argExtractor.extractOption(named: "target")
+
+            try formatCode(in: context.xcodeProject.directory, context: context, arguments: argExtractor.remainingArguments)
+        }
+    }
+#endif

Tests/SwiftFormatTests.swift

@@ -67,7 +67,7 @@ class SwiftFormatTests: XCTestCase {
             return { files.append(inputURL) }
         }
         XCTAssertEqual(errors.count, 0)
-        XCTAssertEqual(files.count, 66)
+        XCTAssertEqual(files.count, 67)
     }
 
     func testInputFilesMatchOutputFilesForSameOutput() {
@@ -78,7 +78,7 @@ class SwiftFormatTests: XCTestCase {
             return { files.append(inputURL) }
         }
         XCTAssertEqual(errors.count, 0)
-        XCTAssertEqual(files.count, 66)
+        XCTAssertEqual(files.count, 67)
     }
 
     func testInputFileNotEnumeratedWhenExcluded() {
@@ -93,7 +93,7 @@ class SwiftFormatTests: XCTestCase {
             return { files.append(inputURL) }
         }
         XCTAssertEqual(errors.count, 0)
-        XCTAssertEqual(files.count, 41)
+        XCTAssertEqual(files.count, 42)
     }
 
     // MARK: format function