[flutter_tools] make verbose macOS builds actually verbose (#54320)

diff --git a/packages/flutter_tools/lib/src/commands/build_macos.dart b/packages/flutter_tools/lib/src/commands/build_macos.dart
index 8830260..f6aaf9c 100644
--- a/packages/flutter_tools/lib/src/commands/build_macos.dart
+++ b/packages/flutter_tools/lib/src/commands/build_macos.dart

@@ -54,6 +54,7 @@
       flutterProject: flutterProject,
       buildInfo: buildInfo,
       targetOverride: targetFile,
+      verboseLogging: globals.logger.isVerbose,
     );
     return FlutterCommandResult.success();
   }

diff --git a/packages/flutter_tools/lib/src/macos/build_macos.dart b/packages/flutter_tools/lib/src/macos/build_macos.dart
index 6f7cb3e..83c9849 100644
--- a/packages/flutter_tools/lib/src/macos/build_macos.dart
+++ b/packages/flutter_tools/lib/src/macos/build_macos.dart

@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:meta/meta.dart';
+
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/logger.dart';
@@ -18,6 +20,7 @@
   FlutterProject flutterProject,
   BuildInfo buildInfo,
   String targetOverride,
+  @required bool verboseLogging,
 }) async {
   if (!flutterProject.macos.xcodeWorkspace.existsSync()) {
     throwToolExit('No macOS desktop project configured. '
@@ -83,6 +86,8 @@
       '-derivedDataPath', flutterBuildDir.absolute.path,
       'OBJROOT=${globals.fs.path.join(flutterBuildDir.absolute.path, 'Build', 'Intermediates.noindex')}',
       'SYMROOT=${globals.fs.path.join(flutterBuildDir.absolute.path, 'Build', 'Products')}',
+      if (verboseLogging)
+        'VERBOSE_SCRIPT_LOGGING=YES',
       'COMPILER_INDEX_STORE_ENABLE=NO',
       ...environmentVariablesAsXcodeBuildSettings(globals.platform)
     ], trace: true);

diff --git a/packages/flutter_tools/lib/src/macos/macos_device.dart b/packages/flutter_tools/lib/src/macos/macos_device.dart
index 8f79081..ac22442 100644
--- a/packages/flutter_tools/lib/src/macos/macos_device.dart
+++ b/packages/flutter_tools/lib/src/macos/macos_device.dart

@@ -44,6 +44,7 @@
       flutterProject: FlutterProject.current(),
       buildInfo: buildInfo,
       targetOverride: mainPath,
+      verboseLogging: globals.logger.isVerbose,
     );
   }
 

diff --git a/packages/flutter_tools/test/commands.shard/hermetic/build_macos_test.dart b/packages/flutter_tools/test/commands.shard/hermetic/build_macos_test.dart
index 26c763d..86b3de2 100644
--- a/packages/flutter_tools/test/commands.shard/hermetic/build_macos_test.dart
+++ b/packages/flutter_tools/test/commands.shard/hermetic/build_macos_test.dart

@@ -69,7 +69,7 @@
 
   // Creates a FakeCommand for the xcodebuild call to build the app
   // in the given configuration.
-  FakeCommand setUpMockXcodeBuildHandler(String configuration) {
+  FakeCommand setUpMockXcodeBuildHandler(String configuration, { bool verbose = false }) {
     final FlutterProject flutterProject = FlutterProject.fromDirectory(fileSystem.currentDirectory);
     final Directory flutterBuildDir = fileSystem.directory(getMacOSBuildDirectory());
     return FakeCommand(
@@ -83,6 +83,8 @@
         '-derivedDataPath', flutterBuildDir.absolute.path,
         'OBJROOT=${fileSystem.path.join(flutterBuildDir.absolute.path, 'Build', 'Intermediates.noindex')}',
         'SYMROOT=${fileSystem.path.join(flutterBuildDir.absolute.path, 'Build', 'Products')}',
+        if (verbose)
+          'VERBOSE_SCRIPT_LOGGING=YES',
         'COMPILER_INDEX_STORE_ENABLE=NO',
       ],
       stdout: 'STDOUT STUFF',
@@ -159,6 +161,23 @@
     FeatureFlags: () => TestFeatureFlags(isMacOSEnabled: true),
   });
 
+  testUsingContext('macOS build invokes xcode build (debug) with verbosity', () async {
+    final BuildCommand command = BuildCommand();
+    createMinimalMockProjectFiles();
+
+    await createTestCommandRunner(command).run(
+      const <String>['build', 'macos', '--debug', '-v']
+    );
+  }, overrides: <Type, Generator>{
+    FileSystem: () => fileSystem,
+    ProcessManager: () => FakeProcessManager.list(<FakeCommand>[
+      setUpMockXcodeBuildHandler('Debug', verbose: true)
+    ]),
+    Platform: () => macosPlatform,
+    FeatureFlags: () => TestFeatureFlags(isMacOSEnabled: true),
+  });
+
+
   testUsingContext('macOS build invokes xcode build (profile)', () async {
     final BuildCommand command = BuildCommand();
     createMinimalMockProjectFiles();