Avoid thinning frameworks in iOS extensions (#64674)

dev/devicelab/bin/tasks/ios_app_with_extensions_test.dart

@@ -7,12 +7,14 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/framework/framework.dart';
+import 'package:flutter_devicelab/framework/ios.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:path/path.dart' as path;
+import 'package:meta/meta.dart';
 
 Future<void> main() async {
   await task(() async {
-    section('Copy test Flutter App with WatchOS Companion');
+    section('Copy test Flutter App with watchOS Companion');
 
     String watchDeviceID;
     String phoneDeviceID;
@@ -33,22 +35,54 @@ Future<void> main() async {
       await inDirectory(projectDir, () async {
         await flutter(
           'build',
-          options: <String>['ios', '--no-codesign'],
+          options: <String>['ios', '--no-codesign', '--release'],
         );
       });
 
-      final bool appReleaseBuilt = exists(Directory(path.join(
+      final String appBundle = Directory(path.join(
         projectDir.path,
         'build',
         'ios',
         'iphoneos',
         'Runner.app',
-      )));
+      )).path;
 
-      if (!appReleaseBuilt) {
-        return TaskResult.failure(
-            'Failed to build flutter iOS app with WatchOS companion in release mode.');
-      }
+      final String appFrameworkPath = path.join(
+        appBundle,
+        'Frameworks',
+        'App.framework',
+        'App',
+      );
+      final String flutterFrameworkPath = path.join(
+        appBundle,
+        'Frameworks',
+        'Flutter.framework',
+        'Flutter',
+      );
+
+      checkDirectoryExists(appBundle);
+      await _checkFlutterFrameworkArchs(appFrameworkPath, isSimulator: false);
+      await _checkFlutterFrameworkArchs(flutterFrameworkPath, isSimulator: false);
+
+      // Check the watch extension framework added in the Podfile
+      // is in place with the expected watch archs.
+      final String watchExtensionFrameworkPath = path.join(
+        appBundle,
+        'Watch',
+        'watch.app',
+        'PlugIns',
+        'watch Extension.appex',
+        'Frameworks',
+        'EFQRCode.framework',
+        'EFQRCode',
+      );
+      _checkWatchExtensionFrameworkArchs(watchExtensionFrameworkPath);
+
+      section('Clean build');
+
+      await inDirectory(projectDir, () async {
+        await flutter('clean');
+      });
 
       section('Create debug build');
 
@@ -59,20 +93,18 @@ Future<void> main() async {
         );
       });
 
-      final bool appDebugBuilt = exists(Directory(path.join(
-        projectDir.path,
-        'build',
-        'ios',
-        'iphoneos',
-        'Runner.app',
-      )));
+      checkDirectoryExists(appBundle);
+      await _checkFlutterFrameworkArchs(appFrameworkPath, isSimulator: false);
+      await _checkFlutterFrameworkArchs(flutterFrameworkPath, isSimulator: false);
+      _checkWatchExtensionFrameworkArchs(watchExtensionFrameworkPath);
 
-      if (!appDebugBuilt) {
-        return TaskResult.failure(
-            'Failed to build flutter iOS app with WatchOS companion in debug mode.');
-      }
+      section('Clean build');
+
+      await inDirectory(projectDir, () async {
+        await flutter('clean');
+      });
 
-      section('Create build for a simulator device');
+      section('Run app on simulator device');
 
       // Xcode 11.4 simctl create makes the runtime argument optional, and defaults to latest.
       // TODO(jmagman): Remove runtime parsing when devicelab upgrades to Xcode 11.4 https://github.com/flutter/flutter/issues/54889
@@ -160,34 +192,6 @@ Future<void> main() async {
         workingDirectory: flutterDirectory.path,
       );
 
-      await inDirectory(projectDir, () async {
-        await flutter(
-          'build',
-          options: <String>[
-            'ios',
-            '--debug',
-            '--no-codesign',
-            '-d',
-            phoneDeviceID
-          ],
-        );
-      });
-
-      final bool appSimulatorBuilt = exists(Directory(path.join(
-        projectDir.path,
-        'build',
-        'ios',
-        'iphoneos',
-        'Runner.app',
-      )));
-
-      if (!appSimulatorBuilt) {
-        return TaskResult.failure(
-            'Failed to build flutter iOS app with WatchOS companion in debug mode for simulated device.');
-      }
-
-      section('Run app on simulator device');
-
       // Boot simulator devices.
       await eval(
         'xcrun',
@@ -227,9 +231,36 @@ Future<void> main() async {
 
       final int exitCode = await process.exitCode;
 
-      if (exitCode != 0)
+      if (exitCode != 0) {
         return TaskResult.failure(
             'Failed to start flutter iOS app with WatchOS companion on simulated device.');
+      }
+
+      final String simulatorAppBundle = Directory(path.join(
+        projectDir.path,
+        'build',
+        'ios',
+        'iphonesimulator',
+        'Runner.app',
+      )).path;
+
+      checkDirectoryExists(simulatorAppBundle);
+
+      final String simulatorAppFrameworkPath = path.join(
+        simulatorAppBundle,
+        'Frameworks',
+        'App.framework',
+        'App',
+      );
+      final String simulatorFlutterFrameworkPath = path.join(
+        simulatorAppBundle,
+        'Frameworks',
+        'Flutter.framework',
+        'Flutter',
+      );
+
+      await _checkFlutterFrameworkArchs(simulatorAppFrameworkPath, isSimulator: true);
+      await _checkFlutterFrameworkArchs(simulatorFlutterFrameworkPath, isSimulator: true);
 
       return TaskResult.success(null);
     } catch (e) {
@@ -268,3 +299,35 @@ Future<void> main() async {
     }
   });
 }
+
+Future<void> _checkFlutterFrameworkArchs(String frameworkPath, {
+  @required bool isSimulator
+}) async {
+  checkFileExists(frameworkPath);
+
+  final String archs = await fileType(frameworkPath);
+  if (isSimulator == archs.contains('armv7')) {
+    throw TaskResult.failure('$frameworkPath armv7 architecture unexpected');
+  }
+
+  if (isSimulator == archs.contains('arm64')) {
+    throw TaskResult.failure('$frameworkPath arm64 architecture unexpected');
+  }
+
+  if (isSimulator != archs.contains('x86_64')) {
+    throw TaskResult.failure(
+        '$frameworkPath x86_64 architecture unexpected');
+  }
+}
+
+Future<void> _checkWatchExtensionFrameworkArchs(String frameworkPath) async {
+  checkFileExists(frameworkPath);
+  final String archs = await fileType(frameworkPath);
+  if (!archs.contains('armv7k')) {
+    throw TaskResult.failure('$frameworkPath armv7k architecture missing');
+  }
+
+  if (!archs.contains('arm64_32')) {
+    throw TaskResult.failure('$frameworkPath arm64_32 architecture missing');
+  }
+}

dev/integration_tests/ios_app_with_extensions/ios/Flutter/Debug.xcconfig

+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

dev/integration_tests/ios_app_with_extensions/ios/Flutter/Release.xcconfig

+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

dev/integration_tests/ios_app_with_extensions/ios/Podfile

+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+target 'watch Extension' do
+  platform :watchos
+  use_frameworks!
+  use_modular_headers!
+
+  pod 'EFQRCode/watchOS', '5.1.6'
+end

dev/integration_tests/ios_app_with_extensions/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -4,4 +4,7 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
 </Workspace>

packages/flutter_tools/bin/xcode_backend.sh

@@ -257,11 +257,10 @@ ThinFramework() {
 }
 
 ThinAppFrameworks() {
-  local app_path="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"
-  local frameworks_dir="${app_path}/Frameworks"
+  local xcode_frameworks_dir="${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
 
-  [[ -d "$frameworks_dir" ]] || return 0
-  find "${app_path}" -type d -name "*.framework" | while read framework_dir; do
+  [[ -d "${xcode_frameworks_dir}" ]] || return 0
+  find "${xcode_frameworks_dir}" -type d -name "*.framework" | while read framework_dir; do
     ThinFramework "$framework_dir" "$ARCHS"
   done
 }