oozoofrog · oozoofrog · Feb 14, 2026 · Feb 14, 2026
diff --git a/Package.swift b/Package.swift
@@ -0,0 +1,17 @@
+// swift-tools-version: 6.0
+import PackageDescription
+
+let package = Package(
+    name: "ModernizationSupport",
+    platforms: [
+        .iOS("26.0"),
+        .macOS("26.0")
+    ],
+    products: [
+        .library(name: "ModernizationSupport", targets: ["ModernizationSupport"])
+    ],
+    targets: [
+        .target(name: "ModernizationSupport"),
+        .testTarget(name: "ModernizationSupportTests", dependencies: ["ModernizationSupport"])
+    ]
+)
diff --git a/README.md b/README.md
@@ -48,3 +48,8 @@ SDL2.0 + ffmpeg 3.1.1 + swift is different from olds
 
 
 now working on tutorial4
+
+
+## Modernization checks
+- Run Swift package tests for modernization utilities:
+  - `swift test`
diff --git a/Sources/ModernizationSupport/DocumentPathResolver.swift b/Sources/ModernizationSupport/DocumentPathResolver.swift
@@ -0,0 +1,18 @@
+import Foundation
+
+public enum DocumentPathResolver {
+    public static func userDocumentRoot(from absoluteDocumentPath: String) -> String? {
+        let components = absoluteDocumentPath.split(separator: "/").map(String.init)
+        guard components.count >= 3 else { return nil }
+        return "/" + components[0...2].joined(separator: "/") + "/Documents"
+    }
+
+    public static func appScopedDocumentAliasRoot(from absoluteDocumentPath: String, appName: String = "ffmpeg_tutorial") -> String? {
+        guard let root = userDocumentRoot(from: absoluteDocumentPath) else { return nil }
+        return root + "/" + appName
+    }
+
+    public static func needsSymlinkRefresh(currentLinkTarget: String?, expectedTarget: String) -> Bool {
+        return currentLinkTarget != expectedTarget
+    }
+}
diff --git a/SwiftPlayer/SwiftPlayer.xcodeproj/project.pbxproj b/SwiftPlayer/SwiftPlayer.xcodeproj/project.pbxproj
@@ -247,7 +247,7 @@
 		D848FE6B1D745F4D0058E322 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastSwiftUpdateCheck = 0800;
+				LastSwiftUpdateCheck = 1600;
 				LastUpgradeCheck = 0800;
 				ORGANIZATIONNAME = "Kwanghoon Choi";
 				TargetAttributes = {
@@ -392,7 +392,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 26.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -436,7 +436,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 26.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
@@ -456,7 +456,7 @@
 					"\"$(SRCROOT)/../SDL-iOS/include\"",
 				);
 				INFOPLIST_FILE = SwiftPlayer/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 26.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				LIBRARY_SEARCH_PATHS = (
 					"\"$(SRCROOT)/../ffmpeg/lib\"",
@@ -466,7 +466,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "SwiftPlayer/SwiftPlayer-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -481,7 +481,7 @@
 					"\"$(SRCROOT)/../SDL-iOS/include\"",
 				);
 				INFOPLIST_FILE = SwiftPlayer/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 26.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				LIBRARY_SEARCH_PATHS = (
 					"\"$(SRCROOT)/../ffmpeg/lib\"",
@@ -490,7 +490,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.ngenii.SwiftPlayer;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "SwiftPlayer/SwiftPlayer-Bridging-Header.h";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};

diff --git a/SwiftPlayer/SwiftPlayer/AppDelegate.swift b/SwiftPlayer/SwiftPlayer/AppDelegate.swift
@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     var window: UIWindow?
 
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.
 
 
@@ -83,31 +83,22 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     }
 
     func createSymbolickLinkForDocuments() {
-        if let attributes = try? FileManager.default.attributesOfItem(atPath: self.documentPathForUserWithAppName), let type: FileAttributeType = attributes[.type] as? FileAttributeType {
-            if type == .typeSymbolicLink && (self.docPath as String) == self.linkOfDocumentPathForUserWithAppName {
-                return
-            }
+        let destinationPath = self.docPath as String
+
+        if let attributes = try? FileManager.default.attributesOfItem(atPath: self.documentPathForUserWithAppName),
+           let type = attributes[.type] as? FileAttributeType,
+           type == .typeSymbolicLink,
+           destinationPath == self.linkOfDocumentPathForUserWithAppName {
+            return
         }
+
         do {
-            let attributes = try? FileManager.default.attributesOfItem(atPath: self.documentPathForUserWithAppName)
-            if let attributes = attributes {
-
-                let type: FileAttributeType = attributes[.type] as! FileAttributeType
-                if type == .typeSymbolicLink {
-                    try FileManager.default.removeItem(atPath: self.documentPathForUserWithAppName)
-                    try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: self.docPath as String)
-                }
-                else {
-                    try FileManager.default.removeItem(atPath: self.documentPathForUserWithAppName)
-                    try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: self.docPath as String)
-                }
-            } else {
-                try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: self.docPath as String)
+            if FileManager.default.fileExists(atPath: self.documentPathForUserWithAppName) {
+                try FileManager.default.removeItem(atPath: self.documentPathForUserWithAppName)
             }
-
-        } catch let err as NSError {
-            assertionFailure(err.localizedDescription)
+            try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: destinationPath)
+        } catch {
+            assertionFailure(error.localizedDescription)
         }
     }
 }
-
diff --git a/SwiftPlayer/SwiftPlayer/ViewController.swift b/SwiftPlayer/SwiftPlayer/ViewController.swift
@@ -24,8 +24,7 @@ class ViewController: UIViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
-        let prevIO = UIApplication.shared.statusBarOrientation
-        if UIInterfaceOrientationIsPortrait(prevIO) {
+        if UIDevice.current.orientation.isPortrait || UIDevice.current.orientation == .unknown {
             UIDevice.current.setValue(UIDeviceOrientation.landscapeLeft.rawValue, forKey: "orientation")
         }
     }
@@ -37,25 +36,30 @@ class ViewController: UIViewController {
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
 
-        weak var weakSelf = self
-        if let path = self.path, 0 < path.lengthOfBytes(using: .utf8) {
-            self.player = Player(path: path)
-
-            self.player?.start(start: { 
-                DispatchQueue.main.async {
-                    guard weakSelf?.setupSDL(player: weakSelf!.player!) ?? false else {
-                        weakSelf?.player?.cancel()
-                        return
-                    }
-
-                    weakSelf?.displayLink = CADisplayLink(target: self, selector: #selector(ViewController.update(link:)))
-                    weakSelf?.displayLink?.add(to: RunLoop.current, forMode: RunLoopMode.defaultRunLoopMode)
-                }
-                }, stop: {
-                    var event = SDL_Event(quit: SDL_QuitEvent(type: SDL_QUIT.rawValue, timestamp: 0))
-                    SDL_PushEvent(&event)
-            })
+        guard let path = self.path, 0 < path.lengthOfBytes(using: .utf8) else {
+            return
         }
+
+        self.player = Player(path: path)
+
+        self.player?.start(start: { [weak self] in
+            DispatchQueue.main.async {
+                guard let self else {
+                    return
+                }
+
+                guard let player = self.player, self.setupSDL(player: player) else {
+                    self.player?.cancel()
+                    return
+                }
+
+                self.displayLink = CADisplayLink(target: self, selector: #selector(ViewController.update(link:)))
+                self.displayLink?.add(to: .current, forMode: .default)
+            }
+        }, stop: {
+            var event = SDL_Event(quit: SDL_QuitEvent(type: SDL_QUIT.rawValue, timestamp: 0))
+            SDL_PushEvent(&event)
+        })
     }
 
     override func viewDidDisappear(_ animated: Bool) {
@@ -69,7 +73,7 @@ class ViewController: UIViewController {
     }
 
     var start: Double = 0
-    func update(link: CADisplayLink) {
+    @objc func update(link: CADisplayLink) {
         if 0 == start {
             start = link.timestamp
         }

diff --git a/Tests/ModernizationSupportTests/DocumentPathResolverTests.swift b/Tests/ModernizationSupportTests/DocumentPathResolverTests.swift
@@ -0,0 +1,29 @@
+import XCTest
+@testable import ModernizationSupport
+
+final class DocumentPathResolverTests: XCTestCase {
+    func testUserDocumentRootFromSimulatorPath() {
+        let path = "/Users/test/Library/Developer/CoreSimulator/Devices/abc/data/Containers/Data/Application/xyz/Documents"
+        XCTAssertEqual(
+            DocumentPathResolver.userDocumentRoot(from: path),
+            "/Users/test/Library/Documents"
+        )
+    }
+
+    func testUserDocumentRootWithInvalidPathReturnsNil() {
+        XCTAssertNil(DocumentPathResolver.userDocumentRoot(from: "/tmp"))
+    }
+
+    func testAppScopedDocumentAliasRootUsesDefaultAppName() {
+        let path = "/Users/test/Library/Developer/CoreSimulator/Devices/abc/data"
+        XCTAssertEqual(
+            DocumentPathResolver.appScopedDocumentAliasRoot(from: path),
+            "/Users/test/Library/Documents/ffmpeg_tutorial"
+        )
+    }
+
+    func testNeedsSymlinkRefreshWhenTargetsDiffer() {
+        XCTAssertTrue(DocumentPathResolver.needsSymlinkRefresh(currentLinkTarget: "/old", expectedTarget: "/new"))
+        XCTAssertFalse(DocumentPathResolver.needsSymlinkRefresh(currentLinkTarget: "/same", expectedTarget: "/same"))
+    }
+}
diff --git a/tutorial/tutorial.xcodeproj/project.pbxproj b/tutorial/tutorial.xcodeproj/project.pbxproj
@@ -448,7 +448,7 @@
 		A96D16E81D5860C5009F7AC2 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastSwiftUpdateCheck = 0800;
+				LastSwiftUpdateCheck = 1600;
 				LastUpgradeCheck = 0800;
 				ORGANIZATIONNAME = gretech;
 				TargetAttributes = {
@@ -603,7 +603,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 26.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -644,7 +644,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 26.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				VALIDATE_PRODUCT = YES;
@@ -680,7 +680,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SWIFT_OBJC_BRIDGING_HEADER = "tutorial/tutorial-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -712,7 +712,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "tutorial/tutorial-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
@@ -736,12 +736,12 @@
 					/usr/local/Cellar/sdl2/2.0.4/lib,
 					/usr/local/Cellar/ffmpeg/3.1.3/lib,
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 26.0;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "tutorial6/tutorial6-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -764,11 +764,11 @@
 					/usr/local/Cellar/sdl2/2.0.4/lib,
 					/usr/local/Cellar/ffmpeg/3.1.3/lib,
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 26.0;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "tutorial6/tutorial6-Bridging-Header.h";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};

diff --git a/tutorial/tutorial/AppDelegate.swift b/tutorial/tutorial/AppDelegate.swift
@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     var window: UIWindow?
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
         // Override point for customization after application launch.
 
         av_register_all()
@@ -87,30 +87,22 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     }
 
     func createSymbolickLinkForDocuments() {
-        if let attributes = try? FileManager.default.attributesOfItem(atPath: self.documentPathForUserWithAppName), let type: FileAttributeType = attributes[.type] as? FileAttributeType {
-            if type == .typeSymbolicLink && (self.docPath as String) == self.linkOfDocumentPathForUserWithAppName {
-                return
-            }
+        let destinationPath = self.docPath as String
+
+        if let attributes = try? FileManager.default.attributesOfItem(atPath: self.documentPathForUserWithAppName),
+           let type = attributes[.type] as? FileAttributeType,
+           type == .typeSymbolicLink,
+           destinationPath == self.linkOfDocumentPathForUserWithAppName {
+            return
         }
+
         do {
-            let attributes = try? FileManager.default.attributesOfItem(atPath: self.documentPathForUserWithAppName)
-            if let attributes = attributes {
-
-                let type: FileAttributeType = attributes[.type] as! FileAttributeType
-                if type == .typeSymbolicLink {
-                    try FileManager.default.removeItem(atPath: self.documentPathForUserWithAppName)
-                    try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: self.docPath as String)
-                }
-                else {
-                    try FileManager.default.removeItem(atPath: self.documentPathForUserWithAppName)
-                    try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: self.docPath as String)
-                }
-            } else {
-                try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: self.docPath as String)
+            if FileManager.default.fileExists(atPath: self.documentPathForUserWithAppName) {
+                try FileManager.default.removeItem(atPath: self.documentPathForUserWithAppName)
             }
-
-        } catch let err as NSError {
-            assertionFailure(err.localizedDescription)
+            try FileManager.default.createSymbolicLink(atPath: self.documentPathForUserWithAppName, withDestinationPath: destinationPath)
+        } catch {
+            assertionFailure(error.localizedDescription)
         }
     }