[flutter_tools] Restore base/platform.dart (#56410)

packages/flutter_tools/lib/src/android/android_sdk.dart

@@ -3,11 +3,11 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/os.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/version.dart';
 import '../convert.dart';

packages/flutter_tools/lib/src/android/android_workflow.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/common.dart';
@@ -14,6 +13,7 @@ import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/os.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/user_messages.dart';
 import '../base/utils.dart';

packages/flutter_tools/lib/src/artifacts.dart

@@ -3,10 +3,10 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import 'base/file_system.dart';
+import 'base/platform.dart';
 import 'base/utils.dart';
 import 'build_info.dart';
 import 'cache.dart';

packages/flutter_tools/lib/src/base/bot_detector.dart

@@ -5,11 +5,11 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../persistent_tool_state.dart';
 import 'io.dart';
 import 'net.dart';
+import 'platform.dart';
 
 class BotDetector {
   BotDetector({

packages/flutter_tools/lib/src/base/command_help.dart

@@ -5,9 +5,9 @@
 import 'dart:math' as math;
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import 'logger.dart';
+import 'platform.dart';
 import 'terminal.dart';
 
 // ignore_for_file: non_constant_identifier_names

packages/flutter_tools/lib/src/base/config.dart

@@ -3,11 +3,11 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../convert.dart';
 import 'file_system.dart';
 import 'logger.dart';
+import 'platform.dart';
 import 'utils.dart';
 
 /// A class to abstract configuration files.

packages/flutter_tools/lib/src/base/error_handling_file_system.dart

@@ -8,9 +8,9 @@ import 'dart:io' as io show Directory, File, Link;
 import 'package:file/file.dart';
 import 'package:meta/meta.dart';
 import 'package:path/path.dart' as p; // ignore: package_path_import
-import 'package:platform/platform.dart';
 
 import 'common.dart' show throwToolExit;
+import 'platform.dart';
 
 // The Flutter tool hits file system errors that only the end-user can address.
 // We would like these errors to not hit crash logging. In these cases, we

packages/flutter_tools/lib/src/base/file_system.dart

@@ -4,9 +4,9 @@
 
 import 'package:file/file.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import 'common.dart' show throwToolExit;
+import 'platform.dart';
 
 export 'package:file/file.dart';
 export 'package:file/local.dart';

packages/flutter_tools/lib/src/base/net.dart

@@ -5,13 +5,13 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../convert.dart';
 import 'common.dart';
 import 'file_system.dart';
 import 'io.dart';
 import 'logger.dart';
+import 'platform.dart';
 
 const int kNetworkProblemExitCode = 50;
 

packages/flutter_tools/lib/src/base/os.dart

@@ -5,13 +5,13 @@
 import 'package:archive/archive.dart';
 import 'package:file/file.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../globals.dart' as globals;
 import 'file_system.dart';
 import 'io.dart';
 import 'logger.dart';
+import 'platform.dart';
 import 'process.dart';
 
 abstract class OperatingSystemUtils {

packages/flutter_tools/lib/src/base/platform.dart

@@ -0,0 +1,262 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:io' as io show Platform, stdin, stdout;
+
+/// Provides API parity with the `Platform` class in `dart:io`, but using
+/// instance properties rather than static properties. This difference enables
+/// the use of these APIs in tests, where you can provide mock implementations.
+abstract class Platform {
+  /// Creates a new [Platform].
+  const Platform();
+
+  /// The number of processors of the machine.
+  int get numberOfProcessors;
+
+  /// The path separator used by the operating system to separate
+  /// components in file paths.
+  String get pathSeparator;
+
+  /// A string (`linux`, `macos`, `windows`, `android`, `ios`, or `fuchsia`)
+  /// representing the operating system.
+  String get operatingSystem;
+
+  /// A string representing the version of the operating system or platform.
+  String get operatingSystemVersion;
+
+  /// Get the local hostname for the system.
+  String get localHostname;
+
+  /// True if the operating system is Linux.
+  bool get isLinux => operatingSystem == 'linux';
+
+  /// True if the operating system is OS X.
+  bool get isMacOS => operatingSystem == 'macos';
+
+  /// True if the operating system is Windows.
+  bool get isWindows => operatingSystem == 'windows';
+
+  /// True if the operating system is Android.
+  bool get isAndroid => operatingSystem == 'android';
+
+  /// True if the operating system is iOS.
+  bool get isIOS => operatingSystem == 'ios';
+
+  /// True if the operating system is Fuchsia
+  bool get isFuchsia => operatingSystem == 'fuchsia';
+
+  /// The environment for this process.
+  ///
+  /// The returned environment is an unmodifiable map whose content is
+  /// retrieved from the operating system on its first use.
+  ///
+  /// Environment variables on Windows are case-insensitive. The map
+  /// returned on Windows is therefore case-insensitive and will convert
+  /// all keys to upper case. On other platforms the returned map is
+  /// a standard case-sensitive map.
+  Map<String, String> get environment;
+
+  /// The path of the executable used to run the script in this isolate.
+  ///
+  /// The path returned is the literal path used to run the script. This
+  /// path might be relative or just be a name from which the executable
+  /// was found by searching the `PATH`.
+  ///
+  /// To get the absolute path to the resolved executable use
+  /// [resolvedExecutable].
+  String get executable;
+
+  /// The path of the executable used to run the script in this
+  /// isolate after it has been resolved by the OS.
+  ///
+  /// This is the absolute path, with all symlinks resolved, to the
+  /// executable used to run the script.
+  String get resolvedExecutable;
+
+  /// The absolute URI of the script being run in this
+  /// isolate.
+  ///
+  /// If the script argument on the command line is relative,
+  /// it is resolved to an absolute URI before fetching the script, and
+  /// this absolute URI is returned.
+  ///
+  /// URI resolution only does string manipulation on the script path, and this
+  /// may be different from the file system's path resolution behavior. For
+  /// example, a symbolic link immediately followed by '..' will not be
+  /// looked up.
+  ///
+  /// If the executable environment does not support [script] an empty
+  /// [Uri] is returned.
+  Uri get script;
+
+  /// The flags passed to the executable used to run the script in this
+  /// isolate. These are the command-line flags between the executable name
+  /// and the script name. Each fetch of `executableArguments` returns a new
+  /// list containing the flags passed to the executable.
+  List<String> get executableArguments;
+
+  /// The value of the `--packages` flag passed to the executable
+  /// used to run the script in this isolate. This is the configuration which
+  /// specifies how Dart packages are looked up.
+  ///
+  /// If there is no `--packages` flag, `null` is returned.
+  String get packageConfig;
+
+  /// The version of the current Dart runtime.
+  ///
+  /// The returned `String` is formatted as the [semver](http://semver.org)
+  /// version string of the current dart runtime, possibly followed by
+  /// whitespace and other version and build details.
+  String get version;
+
+  /// When stdin is connected to a terminal, whether ANSI codes are supported.
+  bool get stdinSupportsAnsi;
+
+  /// When stdout is connected to a terminal, whether ANSI codes are supported.
+  bool get stdoutSupportsAnsi;
+
+  /// Get the name of the current locale.
+  String get localeName;
+}
+
+/// `Platform` implementation that delegates directly to `dart:io`.
+class LocalPlatform extends Platform {
+  /// Creates a new [LocalPlatform].
+  const LocalPlatform();
+
+  @override
+  int get numberOfProcessors => io.Platform.numberOfProcessors;
+
+  @override
+  String get pathSeparator => io.Platform.pathSeparator;
+
+  @override
+  String get operatingSystem => io.Platform.operatingSystem;
+
+  @override
+  String get operatingSystemVersion => io.Platform.operatingSystemVersion;
+
+  @override
+  String get localHostname => io.Platform.localHostname;
+
+  @override
+  Map<String, String> get environment => io.Platform.environment;
+
+  @override
+  String get executable => io.Platform.executable;
+
+  @override
+  String get resolvedExecutable => io.Platform.resolvedExecutable;
+
+  @override
+  Uri get script => io.Platform.script;
+
+  @override
+  List<String> get executableArguments => io.Platform.executableArguments;
+
+  @override
+  String get packageConfig => io.Platform.packageConfig;
+
+  @override
+  String get version => io.Platform.version;
+
+  @override
+  bool get stdinSupportsAnsi => io.stdin.supportsAnsiEscapes;
+
+  @override
+  bool get stdoutSupportsAnsi => io.stdout.supportsAnsiEscapes;
+
+  @override
+  String get localeName => io.Platform.localeName;
+}
+
+/// Provides a mutable implementation of the [Platform] interface.
+class FakePlatform extends Platform {
+  /// Creates a new [FakePlatform] with the specified properties.
+  ///
+  /// Unspecified properties will *not* be assigned default values (they will
+  /// remain `null`).
+  FakePlatform({
+    this.numberOfProcessors,
+    this.pathSeparator,
+    this.operatingSystem,
+    this.operatingSystemVersion,
+    this.localHostname,
+    this.environment,
+    this.executable,
+    this.resolvedExecutable,
+    this.script,
+    this.executableArguments,
+    this.packageConfig,
+    this.version,
+    this.stdinSupportsAnsi,
+    this.stdoutSupportsAnsi,
+    this.localeName,
+  });
+
+  /// Creates a new [FakePlatform] with properties whose initial values mirror
+  /// the specified [platform].
+  FakePlatform.fromPlatform(Platform platform)
+      : numberOfProcessors = platform.numberOfProcessors,
+        pathSeparator = platform.pathSeparator,
+        operatingSystem = platform.operatingSystem,
+        operatingSystemVersion = platform.operatingSystemVersion,
+        localHostname = platform.localHostname,
+        environment = Map<String, String>.from(platform.environment),
+        executable = platform.executable,
+        resolvedExecutable = platform.resolvedExecutable,
+        script = platform.script,
+        executableArguments =
+            List<String>.from(platform.executableArguments),
+        packageConfig = platform.packageConfig,
+        version = platform.version,
+        stdinSupportsAnsi = platform.stdinSupportsAnsi,
+        stdoutSupportsAnsi = platform.stdoutSupportsAnsi,
+        localeName = platform.localeName;
+
+  @override
+  int numberOfProcessors;
+
+  @override
+  String pathSeparator;
+
+  @override
+  String operatingSystem;
+
+  @override
+  String operatingSystemVersion;
+
+  @override
+  String localHostname;
+
+  @override
+  Map<String, String> environment;
+
+  @override
+  String executable;
+
+  @override
+  String resolvedExecutable;
+
+  @override
+  Uri script;
+
+  @override
+  List<String> executableArguments;
+
+  @override
+  String packageConfig;
+
+  @override
+  String version;
+
+  @override
+  bool stdinSupportsAnsi;
+
+  @override
+  bool stdoutSupportsAnsi;
+
+  @override
+  String localeName;
+}

packages/flutter_tools/lib/src/base/terminal.dart

@@ -5,12 +5,12 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../convert.dart';
 import '../globals.dart' as globals;
 import 'io.dart' as io;
 import 'logger.dart';
+import 'platform.dart';
 
 enum TerminalColor {
   red,

packages/flutter_tools/lib/src/base/user_messages.dart

@@ -2,9 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:platform/platform.dart';
-
 import 'context.dart';
+import 'platform.dart';
 
 UserMessages get userMessages => context.get<UserMessages>();
 

packages/flutter_tools/lib/src/build_system/build_system.dart

@@ -8,13 +8,13 @@ import 'package:async/async.dart';
 import 'package:convert/convert.dart';
 import 'package:crypto/crypto.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:pool/pool.dart';
 import 'package:process/process.dart';
 
 import '../artifacts.dart';
 import '../base/file_system.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/utils.dart';
 import '../cache.dart';
 import '../convert.dart';

packages/flutter_tools/lib/src/cache.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import 'android/gradle_utils.dart';
 import 'base/common.dart';
@@ -14,6 +13,7 @@ import 'base/io.dart' show SocketException;
 import 'base/logger.dart';
 import 'base/net.dart';
 import 'base/os.dart' show OperatingSystemUtils;
+import 'base/platform.dart';
 import 'base/process.dart';
 import 'features.dart';
 import 'globals.dart' as globals;

packages/flutter_tools/lib/src/commands/analyze.dart

@@ -5,11 +5,11 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/file_system.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/terminal.dart';
 import '../globals.dart' as globals;
 import '../runner/flutter_command.dart';

packages/flutter_tools/lib/src/commands/analyze_base.dart

@@ -6,13 +6,13 @@ import 'dart:async';
 
 import 'package:args/args.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 import 'package:yaml/yaml.dart' as yaml;
 
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/terminal.dart';
 import '../base/utils.dart';
 import '../cache.dart';

packages/flutter_tools/lib/src/commands/analyze_continuously.dart

@@ -6,13 +6,13 @@ import 'dart:async';
 
 import 'package:args/args.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/terminal.dart';
 import '../base/utils.dart';
 import '../cache.dart';

packages/flutter_tools/lib/src/commands/analyze_once.dart

@@ -6,12 +6,12 @@ import 'dart:async';
 
 import 'package:args/args.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/terminal.dart';
 import '../base/utils.dart';
 import '../cache.dart';

packages/flutter_tools/lib/src/commands/build_ios_framework.dart

@@ -6,12 +6,12 @@ import 'dart:async';
 
 import 'package:file/file.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../artifacts.dart';
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/utils.dart';
 import '../build_info.dart';

packages/flutter_tools/lib/src/dart/analysis.dart

@@ -6,13 +6,13 @@ import 'dart:async';
 import 'dart:math' as math;
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/terminal.dart';
 import '../base/utils.dart';
 import '../convert.dart';

packages/flutter_tools/lib/src/dart/pub.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/bot_detector.dart';
@@ -14,6 +13,7 @@ import '../base/context.dart';
 import '../base/file_system.dart';
 import '../base/io.dart' as io;
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../cache.dart';
 import '../reporting/reporting.dart';

packages/flutter_tools/lib/src/fuchsia/fuchsia_device.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:vm_service/vm_service.dart' as vm_service;
 
 import '../application_package.dart';
@@ -16,6 +15,7 @@ import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/net.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/time.dart';
 import '../build_info.dart';

packages/flutter_tools/lib/src/fuchsia/fuchsia_sdk.dart

@@ -4,11 +4,10 @@
 
 import 'dart:async';
 
-import 'package:platform/platform.dart';
-
 import '../base/context.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
+import '../base/platform.dart';
 import '../convert.dart';
 import '../globals.dart' as globals;
 

packages/flutter_tools/lib/src/globals.dart

@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import 'android/android_sdk.dart';
@@ -17,6 +16,7 @@ import 'base/io.dart';
 import 'base/logger.dart';
 import 'base/net.dart';
 import 'base/os.dart';
+import 'base/platform.dart';
 import 'base/template.dart';
 import 'base/terminal.dart';
 import 'base/user_messages.dart';

packages/flutter_tools/lib/src/ios/devices.dart

@@ -6,7 +6,6 @@ import 'dart:async';
 import 'dart:math' as math;
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:vm_service/vm_service.dart' as vm_service;
 import 'package:process/process.dart';
 
@@ -15,6 +14,7 @@ import '../artifacts.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../build_info.dart';
 import '../convert.dart';

packages/flutter_tools/lib/src/ios/ios_deploy.dart

@@ -5,11 +5,11 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../artifacts.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../build_info.dart';
 import '../cache.dart';

packages/flutter_tools/lib/src/ios/xcodeproj.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../artifacts.dart';
@@ -13,6 +12,7 @@ import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/terminal.dart';
 import '../base/utils.dart';

packages/flutter_tools/lib/src/linux/linux_device.dart

@@ -3,8 +3,8 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
+import '../base/platform.dart';
 import '../build_info.dart';
 import '../desktop_device.dart';
 import '../device.dart';

packages/flutter_tools/lib/src/linux/linux_workflow.dart

@@ -3,8 +3,8 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
+import '../base/platform.dart';
 import '../doctor.dart';
 import '../features.dart';
 

packages/flutter_tools/lib/src/macos/cocoapods.dart

@@ -6,13 +6,13 @@ import 'dart:async';
 
 import 'package:file/file.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/version.dart';
 import '../cache.dart';

packages/flutter_tools/lib/src/macos/xcode.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../artifacts.dart';
@@ -13,6 +12,7 @@ import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../build_info.dart';
 import '../cache.dart';

packages/flutter_tools/lib/src/persistent_tool_state.dart

@@ -3,12 +3,12 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import 'base/config.dart';
 import 'base/context.dart';
 import 'base/file_system.dart';
 import 'base/logger.dart';
+import 'base/platform.dart';
 import 'version.dart';
 
 /// A class that represents global (non-project-specific) internal state that

packages/flutter_tools/lib/src/reporting/reporting.dart

@@ -10,13 +10,13 @@ import 'package:file/file.dart';
 import 'package:http/http.dart' as http;
 import 'package:intl/intl.dart';
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:usage/usage_io.dart';
 
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/os.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../base/time.dart';
 import '../build_system/exceptions.dart';

packages/flutter_tools/lib/src/run_hot.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 import 'package:package_config/package_config.dart';
 import 'package:vm_service/vm_service.dart' as vm_service;
-import 'package:platform/platform.dart';
 import 'package:meta/meta.dart';
 import 'package:pool/pool.dart';
 import 'base/async_guard.dart';
@@ -13,6 +12,7 @@ import 'base/async_guard.dart';
 import 'base/context.dart';
 import 'base/file_system.dart';
 import 'base/logger.dart';
+import 'base/platform.dart';
 import 'base/utils.dart';
 import 'build_info.dart';
 import 'bundle.dart';

packages/flutter_tools/lib/src/web/chrome.dart

@@ -5,7 +5,6 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 import 'package:webkit_inspection_protocol/webkit_inspection_protocol.dart';
 
@@ -14,6 +13,7 @@ import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/os.dart';
+import '../base/platform.dart';
 import '../convert.dart';
 import '../globals.dart' as globals;
 

packages/flutter_tools/lib/src/web/web_device.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../application_package.dart';
@@ -11,6 +10,7 @@ import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/os.dart';
+import '../base/platform.dart';
 import '../build_info.dart';
 import '../device.dart';
 import '../features.dart';

packages/flutter_tools/lib/src/web/web_validator.dart

@@ -3,8 +3,8 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
+import '../base/platform.dart';
 import '../doctor.dart';
 import 'chrome.dart';
 

packages/flutter_tools/lib/src/web/workflow.dart

@@ -3,8 +3,8 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
+import '../base/platform.dart';
 import '../doctor.dart';
 import '../features.dart';
 

packages/flutter_tools/lib/src/windows/visual_studio.dart

@@ -3,12 +3,12 @@
 // found in the LICENSE file.
 
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
+import '../base/platform.dart';
 import '../base/process.dart';
 import '../convert.dart';
 

packages/flutter_tools/test/commands.shard/hermetic/analyze_continuously_test.dart

@@ -8,14 +8,14 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/dart/analysis.dart';
 import 'package:flutter_tools/src/dart/pub.dart';
 import 'package:flutter_tools/src/dart/sdk.dart';
-import 'package:flutter_tools/src/runner/flutter_command_runner.dart';
-import 'package:platform/platform.dart';
-import 'package:process/process.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/runner/flutter_command_runner.dart';
+import 'package:process/process.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/commands.shard/hermetic/attach_test.dart

@@ -5,27 +5,26 @@
 import 'dart:async';
 
 import 'package:file/memory.dart';
-import 'package:meta/meta.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
-import 'package:process/process.dart';
-import 'package:vm_service/vm_service.dart' as vm_service;
-
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/attach.dart';
 import 'package:flutter_tools/src/device.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/ios/devices.dart';
 import 'package:flutter_tools/src/mdns_discovery.dart';
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/resident_runner.dart';
 import 'package:flutter_tools/src/run_hot.dart';
 import 'package:flutter_tools/src/vmservice.dart';
-import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:meta/meta.dart';
+import 'package:mockito/mockito.dart';
+import 'package:process/process.dart';
+import 'package:vm_service/vm_service.dart' as vm_service;
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/commands.shard/hermetic/build_fuchsia_test.dart

@@ -4,9 +4,8 @@
 
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build.dart';

packages/flutter_tools/test/commands.shard/hermetic/build_ios_framework_test.dart

@@ -5,16 +5,16 @@
 import 'dart:io';
 
 import 'package:file/memory.dart';
+import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/bundle.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build_ios_framework.dart';
-import 'package:flutter_tools/src/base/file_system.dart';
-import 'package:flutter_tools/src/version.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/commands.shard/hermetic/build_linux_test.dart

@@ -5,16 +5,15 @@
 import 'package:args/command_runner.dart';
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
-import 'package:platform/platform.dart';
-import 'package:process/process.dart';
-
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build.dart';
 import 'package:flutter_tools/src/commands/build_linux.dart';
 import 'package:flutter_tools/src/features.dart';
 import 'package:flutter_tools/src/linux/makefile.dart';
 import 'package:flutter_tools/src/project.dart';
+import 'package:process/process.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/commands.shard/hermetic/build_macos_test.dart

@@ -4,8 +4,8 @@
 
 import 'package:args/command_runner.dart';
 import 'package:file/memory.dart';
-import 'package:platform/platform.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build.dart';

packages/flutter_tools/test/commands.shard/hermetic/build_web_test.dart

@@ -5,8 +5,7 @@
 import 'package:args/command_runner.dart';
 import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
-import 'package:platform/platform.dart';
-
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/cache.dart';

packages/flutter_tools/test/commands.shard/hermetic/build_windows_test.dart

@@ -4,10 +4,9 @@
 
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build_windows.dart';
 import 'package:flutter_tools/src/convert.dart';

packages/flutter_tools/test/commands.shard/hermetic/clean_test.dart

@@ -3,10 +3,9 @@
 // found in the LICENSE file.
 
 import 'package:file/memory.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/commands/clean.dart';
 import 'package:flutter_tools/src/ios/xcodeproj.dart';
 import 'package:flutter_tools/src/macos/xcode.dart';

packages/flutter_tools/test/commands.shard/hermetic/doctor_test.dart

@@ -10,8 +10,8 @@ import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
-
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/base/user_messages.dart';
 import 'package:flutter_tools/src/cache.dart';
@@ -21,14 +21,13 @@ import 'package:flutter_tools/src/features.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/proxy_validator.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
+import 'package:flutter_tools/src/version.dart';
 import 'package:flutter_tools/src/vscode/vscode.dart';
 import 'package:flutter_tools/src/vscode/vscode_validator.dart';
 import 'package:flutter_tools/src/web/workflow.dart';
-import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
 import 'package:quiver/testing/async.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/commands.shard/hermetic/drive_test.dart

@@ -5,18 +5,17 @@
 import 'dart:async';
 
 import 'package:file/memory.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/android/android_device.dart';
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/drive.dart';
 import 'package:flutter_tools/src/device.dart';
-import 'package:flutter_tools/src/build_info.dart';
-import 'package:mockito/mockito.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:mockito/mockito.dart';
 import 'package:webdriver/sync_io.dart' as sync_io;
 
 import '../../src/common.dart';

packages/flutter_tools/test/commands.shard/hermetic/precache_test.dart

@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/precache.dart';
 import 'package:flutter_tools/src/features.dart';
 import 'package:flutter_tools/src/runner/flutter_command.dart';
 import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/commands.shard/permeable/analyze_once_test.dart

@@ -4,12 +4,11 @@
 
 import 'dart:async';
 
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/analyze.dart';

packages/flutter_tools/test/commands.shard/permeable/create_test.dart

@@ -7,20 +7,18 @@ import 'dart:convert';
 import 'dart:typed_data';
 
 import 'package:args/command_runner.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/net.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/create.dart';
 import 'package:flutter_tools/src/dart/pub.dart';
 import 'package:flutter_tools/src/dart/sdk.dart';
 import 'package:flutter_tools/src/features.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/version.dart';
-import 'package:flutter_tools/src/globals.dart' as globals;
-
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
 import 'package:pubspec_parse/pubspec_parse.dart';

packages/flutter_tools/test/commands.shard/permeable/upgrade_test.dart

@@ -4,17 +4,16 @@
 
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
-
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/upgrade.dart';
 import 'package:flutter_tools/src/convert.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/persistent_tool_state.dart';
 import 'package:flutter_tools/src/runner/flutter_command.dart';
 import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
-import 'package:flutter_tools/src/globals.dart' as globals;
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/analytics_test.dart

@@ -7,6 +7,7 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/config.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/time.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build.dart';
@@ -19,7 +20,6 @@ import 'package:flutter_tools/src/reporting/reporting.dart';
 import 'package:flutter_tools/src/runner/flutter_command.dart';
 import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:usage/usage_io.dart';
 
 import '../src/common.dart';

packages/flutter_tools/test/general.shard/android/android_device_test.dart

@@ -12,13 +12,13 @@ import 'package:flutter_tools/src/android/android_device.dart';
 import 'package:flutter_tools/src/application_package.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/device.dart';
-import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/project.dart';
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/android/android_sdk_test.dart

@@ -6,9 +6,9 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/android/android_sdk.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart' show ProcessResult;
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/android/android_studio_test.dart

@@ -5,11 +5,10 @@
 import 'package:file/memory.dart';
 import 'package:flutter_tools/src/android/android_studio.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
-import 'package:flutter_tools/src/ios/plist_parser.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
-
+import 'package:flutter_tools/src/ios/plist_parser.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/android/android_studio_validator_test.dart

@@ -3,13 +3,13 @@
 // found in the LICENSE file.
 
 import 'package:file/memory.dart';
+import 'package:flutter_tools/src/android/android_studio_validator.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/doctor.dart';
-import 'package:flutter_tools/src/android/android_studio_validator.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/android/android_workflow_test.dart

@@ -5,19 +5,18 @@
 import 'dart:async';
 
 import 'package:file/memory.dart';
-import 'package:flutter_tools/src/base/file_system.dart';
-import 'package:flutter_tools/src/base/io.dart';
-import 'package:flutter_tools/src/base/os.dart';
 import 'package:flutter_tools/src/android/android_sdk.dart';
 import 'package:flutter_tools/src/android/android_workflow.dart';
+import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart' show AnsiTerminal, OutputPreferences;
 import 'package:flutter_tools/src/base/user_messages.dart';
 import 'package:flutter_tools/src/base/version.dart';
 import 'package:flutter_tools/src/doctor.dart';
-
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/android/gradle_errors_test.dart

@@ -8,13 +8,11 @@ import 'package:flutter_tools/src/android/gradle_utils.dart';
 import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
-
+import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
-import 'package:flutter_tools/src/globals.dart' as globals;
-
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/android/gradle_test.dart

@@ -8,23 +8,23 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/android/android_sdk.dart';
 import 'package:flutter_tools/src/android/android_studio.dart';
 import 'package:flutter_tools/src/android/gradle.dart';
-import 'package:flutter_tools/src/android/gradle_utils.dart';
 import 'package:flutter_tools/src/android/gradle_errors.dart';
+import 'package:flutter_tools/src/android/gradle_utils.dart';
 import 'package:flutter_tools/src/artifacts.dart';
-import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/common.dart';
+import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/cache.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/ios/xcodeproj.dart';
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
-import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/application_package_test.dart

@@ -12,15 +12,15 @@ import 'package:flutter_tools/src/application_package.dart';
 import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/fuchsia/application_package.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/ios/plist_parser.dart';
 import 'package:flutter_tools/src/project.dart';
-import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/artifacts_test.dart

@@ -3,15 +3,14 @@
 // found in the LICENSE file.
 
 import 'package:file/memory.dart';
-import 'package:flutter_tools/src/base/logger.dart';
-import 'package:flutter_tools/src/base/os.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/cache.dart';
+import 'package:mockito/mockito.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/asset_bundle_test.dart

@@ -6,15 +6,14 @@ import 'dart:convert';
 
 import 'package:file/file.dart';
 import 'package:file/memory.dart';
-
 import 'package:flutter_tools/src/asset.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/bundle.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/devfs.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/base/bot_detector_test.dart

@@ -8,9 +8,9 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/bot_detector.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/persistent_tool_state.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:quiver/testing/async.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/base/build_test.dart

@@ -3,17 +3,16 @@
 // found in the LICENSE file.
 
 import 'package:file/memory.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/artifacts.dart';
+import 'package:flutter_tools/src/base/build.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_info.dart';
-import 'package:flutter_tools/src/base/build.dart';
 import 'package:flutter_tools/src/ios/xcodeproj.dart';
 import 'package:flutter_tools/src/macos/xcode.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
+import 'package:mockito/mockito.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/base/command_help_test.dart

@@ -4,9 +4,9 @@
 
 import 'package:flutter_tools/src/base/command_help.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart' show AnsiTerminal, OutputPreferences;
 import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/mocks.dart' show MockStdio;

packages/flutter_tools/test/general.shard/base/error_handling_file_system_test.dart

@@ -5,8 +5,8 @@
 import 'package:file/file.dart';
 import 'package:flutter_tools/src/base/error_handling_file_system.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:path/path.dart' as path; // ignore: package_path_import
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/base/file_system_test.dart

@@ -4,8 +4,8 @@
 
 import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 

packages/flutter_tools/test/general.shard/base/fingerprint_test.dart

@@ -5,13 +5,13 @@
 import 'dart:convert' show json;
 
 import 'package:file/memory.dart';
-import 'package:platform/platform.dart';
-import 'package:flutter_tools/src/base/utils.dart';
-import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/fingerprint.dart';
-import 'package:flutter_tools/src/version.dart';
+import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/base/utils.dart';
+import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/base/logger_test.dart

@@ -5,9 +5,9 @@
 import 'dart:async';
 import 'dart:convert' show jsonEncode;
 
-import 'package:platform/platform.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:mockito/mockito.dart';
 import 'package:quiver/testing/async.dart';

packages/flutter_tools/test/general.shard/base/net_test.dart

@@ -11,8 +11,8 @@ import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart' as io;
 import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/base/net.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
-import 'package:platform/platform.dart';
 import 'package:quiver/testing/async.dart';
 
 import '../../src/common.dart';

packages/flutter_tools/test/general.shard/base/os_test.dart

@@ -6,13 +6,13 @@ import 'dart:typed_data';
 
 import 'package:file/file.dart';
 import 'package:file/memory.dart';
-import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/base/platform_test.dart

@@ -0,0 +1,54 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_tools/src/base/platform.dart';
+
+import '../../src/common.dart';
+
+void _expectPlatformsEqual(Platform actual, Platform expected) {
+  expect(actual.numberOfProcessors, expected.numberOfProcessors);
+  expect(actual.pathSeparator, expected.pathSeparator);
+  expect(actual.operatingSystem, expected.operatingSystem);
+  expect(actual.operatingSystemVersion, expected.operatingSystemVersion);
+  expect(actual.localHostname, expected.localHostname);
+  expect(actual.environment, expected.environment);
+  expect(actual.executable, expected.executable);
+  expect(actual.resolvedExecutable, expected.resolvedExecutable);
+  expect(actual.script, expected.script);
+  expect(actual.executableArguments, expected.executableArguments);
+  expect(actual.packageConfig, expected.packageConfig);
+  expect(actual.version, expected.version);
+  expect(actual.localeName, expected.localeName);
+}
+
+void main() {
+  group('FakePlatform.fromPlatform', () {
+    FakePlatform fake;
+    LocalPlatform local;
+
+    setUp(() {
+      local = const LocalPlatform();
+      fake = FakePlatform.fromPlatform(local);
+    });
+
+    testWithoutContext('copiesAllProperties', () {
+      _expectPlatformsEqual(fake, local);
+    });
+
+    testWithoutContext('convertsPropertiesToMutable', () {
+      final String key = fake.environment.keys.first;
+
+      expect(fake.environment[key], local.environment[key]);
+      fake.environment[key] = 'FAKE';
+      expect(fake.environment[key], 'FAKE');
+
+      expect(
+        fake.executableArguments.length,
+        local.executableArguments.length,
+      );
+      fake.executableArguments.add('ARG');
+      expect(fake.executableArguments.last, 'ARG');
+    });
+  });
+}

packages/flutter_tools/test/general.shard/base/process_test.dart

@@ -4,9 +4,9 @@
 
 import 'dart:async';
 
-import 'package:platform/platform.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/process.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:mockito/mockito.dart';

packages/flutter_tools/test/general.shard/base/terminal_test.dart

@@ -4,9 +4,9 @@
 
 import 'dart:async';
 
-import 'package:flutter_tools/src/base/logger.dart';
-import 'package:platform/platform.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';

packages/flutter_tools/test/general.shard/base/user_messages_test.dart

@@ -2,9 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/user_messages.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 

packages/flutter_tools/test/general.shard/build_system/build_system_test.dart

@@ -5,14 +5,14 @@
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
 import 'package:flutter_tools/src/artifacts.dart';
-import 'package:flutter_tools/src/base/logger.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/utils.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/exceptions.dart';
 import 'package:flutter_tools/src/convert.dart';
+import 'package:mockito/mockito.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/build_system/source_test.dart

@@ -4,14 +4,13 @@
 
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
-
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/exceptions.dart';
 import 'package:flutter_tools/src/build_system/source.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/build_system/targets/android_test.dart

@@ -5,16 +5,16 @@
 import 'package:file_testing/file_testing.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/targets/android.dart';
 import 'package:flutter_tools/src/build_system/targets/assets.dart';
 import 'package:flutter_tools/src/build_system/targets/dart.dart';
+import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/convert.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
-import 'package:flutter_tools/src/cache.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../../src/common.dart';
 import '../../../src/fake_process_manager.dart';
@@ -256,4 +256,4 @@ void main() {
   });
 }
 
-class MockArtifacts extends Mock implements Artifacts {}
+class MockArtifacts extends Mock implements Artifacts {}

packages/flutter_tools/test/general.shard/build_system/targets/assets_test.dart

@@ -7,6 +7,7 @@ import 'package:file_testing/file_testing.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/depfile.dart';
@@ -14,7 +15,6 @@ import 'package:flutter_tools/src/build_system/targets/assets.dart';
 import 'package:flutter_tools/src/convert.dart';
 import 'package:flutter_tools/src/devfs.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../../src/common.dart';
 import '../../../src/context.dart';

packages/flutter_tools/test/general.shard/build_system/targets/dart_test.dart

@@ -5,6 +5,7 @@
 import 'package:file/memory.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/exceptions.dart';
@@ -13,7 +14,6 @@ import 'package:flutter_tools/src/build_system/targets/ios.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/compile.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
-import 'package:platform/platform.dart';
 import 'package:process/process.dart';
 
 import '../../../src/common.dart';

packages/flutter_tools/test/general.shard/build_system/targets/icon_tree_shaker_test.dart

@@ -10,6 +10,7 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/targets/dart.dart';
@@ -17,7 +18,6 @@ import 'package:flutter_tools/src/build_system/targets/icon_tree_shaker.dart';
 import 'package:flutter_tools/src/devfs.dart';
 import 'package:meta/meta.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../../../src/common.dart';
 import '../../../src/context.dart';

packages/flutter_tools/test/general.shard/build_system/targets/macos_test.dart

@@ -7,15 +7,15 @@ import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/build.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/targets/dart.dart';
 import 'package:flutter_tools/src/build_system/targets/macos.dart';
 import 'package:flutter_tools/src/cache.dart';
-import 'package:flutter_tools/src/macos/xcode.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/macos/xcode.dart';
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../../../src/common.dart';
 import '../../../src/fake_process_manager.dart';

packages/flutter_tools/test/general.shard/build_system/targets/web_test.dart

@@ -5,7 +5,7 @@
 import 'package:file_testing/file_testing.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
-
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
 import 'package:flutter_tools/src/build_system/depfile.dart';
 import 'package:flutter_tools/src/build_system/targets/dart.dart';
@@ -14,7 +14,6 @@ import 'package:flutter_tools/src/dart/package_map.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../../../src/common.dart';
 import '../../../src/context.dart';

packages/flutter_tools/test/general.shard/build_system/targets/windows_test.dart

@@ -4,15 +4,15 @@
 
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
-import 'package:flutter_tools/src/build_system/targets/dart.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 import 'package:flutter_tools/src/artifacts.dart';
-import 'package:flutter_tools/src/base/logger.dart';
-import 'package:flutter_tools/src/build_system/depfile.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/build_system/build_system.dart';
+import 'package:flutter_tools/src/build_system/depfile.dart';
+import 'package:flutter_tools/src/build_system/targets/dart.dart';
 import 'package:flutter_tools/src/build_system/targets/windows.dart';
+import 'package:mockito/mockito.dart';
 
 import '../../../src/common.dart';
 import '../../../src/context.dart';

packages/flutter_tools/test/general.shard/cache_test.dart

@@ -5,20 +5,18 @@
 import 'package:file/file.dart';
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
-
-import 'package:meta/meta.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
-import 'package:process/process.dart';
-
 import 'package:flutter_tools/src/android/gradle_utils.dart';
-import 'package:flutter_tools/src/base/io.dart';
-import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart' show InternetAddress, SocketException;
+import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/net.dart';
 import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:meta/meta.dart';
+import 'package:mockito/mockito.dart';
+import 'package:process/process.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/cold_test.dart

@@ -7,6 +7,7 @@ import 'dart:async';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/compile.dart';
@@ -16,7 +17,6 @@ import 'package:flutter_tools/src/run_cold.dart';
 import 'package:flutter_tools/src/vmservice.dart';
 import 'package:meta/meta.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/compile_batch_test.dart

@@ -5,7 +5,7 @@
 import 'dart:async';
 
 import 'package:flutter_tools/src/base/io.dart';
-
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/compile.dart';
@@ -13,7 +13,6 @@ import 'package:flutter_tools/src/convert.dart';
 import 'package:mockito/mockito.dart';
 import 'package:package_config/package_config.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/compile_expression_test.dart

@@ -6,6 +6,7 @@ import 'dart:async';
 
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/compile.dart';
@@ -14,7 +15,6 @@ import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:mockito/mockito.dart';
 import 'package:package_config/package_config.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/compile_incremental_test.dart

@@ -6,6 +6,7 @@ import 'dart:async';
 
 import 'package:flutter_tools/src/base/async_guard.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/compile.dart';
@@ -13,7 +14,6 @@ import 'package:flutter_tools/src/convert.dart';
 import 'package:mockito/mockito.dart';
 import 'package:package_config/package_config.dart';
 import 'package:process/process.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/config_test.dart

@@ -6,8 +6,8 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/config.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/terminal.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 

packages/flutter_tools/test/general.shard/crash_reporting_test.dart

@@ -10,13 +10,13 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/doctor.dart';
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
 import 'package:http/http.dart';
 import 'package:http/testing.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/context.dart';

packages/flutter_tools/test/general.shard/dart/pub_get_test.dart

@@ -6,19 +6,18 @@ import 'dart:async';
 
 import 'package:file/file.dart';
 import 'package:file/memory.dart';
-import 'package:mockito/mockito.dart';
-import 'package:process/process.dart';
-import 'package:quiver/testing/async.dart';
-import 'package:platform/platform.dart';
-
 import 'package:flutter_tools/src/base/bot_detector.dart';
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/dart/pub.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
+import 'package:mockito/mockito.dart';
+import 'package:process/process.dart';
+import 'package:quiver/testing/async.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';

packages/flutter_tools/test/general.shard/features_test.dart

@@ -3,10 +3,10 @@
 // found in the LICENSE file.
 
 import 'package:flutter_tools/src/base/config.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/features.dart';
 import 'package:flutter_tools/src/version.dart';
 import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
 
 import '../src/common.dart';
 import '../src/testbed.dart';

packages/flutter_tools/test/general.shard/flutter_platform_test.dart

@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/test/flutter_platform.dart';
 import 'package:meta/meta.dart';
-
-import 'package:platform/platform.dart';
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
 import 'package:test_core/backend.dart'; // ignore: deprecated_member_use

packages/flutter_tools/test/general.shard/forbidden_imports_test.dart

@@ -61,6 +61,7 @@ void main() {
   test('no unauthorized imports of dart:io', () {
     final List<String> whitelistedPaths = <String>[
       globals.fs.path.join(flutterTools, 'lib', 'src', 'base', 'io.dart'),
+      globals.fs.path.join(flutterTools, 'lib', 'src', 'base', 'platform.dart'),
       globals.fs.path.join(flutterTools, 'lib', 'src', 'base', 'error_handling_file_system.dart'),
     ];
     bool _isNotWhitelisted(FileSystemEntity entity) => whitelistedPaths.every((String path) => path != entity.path);

packages/flutter_tools/test/general.shard/fuchsia/fuchsia_device_test.dart

@@ -6,35 +6,34 @@ import 'dart:async';
 import 'dart:convert';
 
 import 'package:file/memory.dart';
-import 'package:flutter_tools/src/base/logger.dart';
-import 'package:flutter_tools/src/fuchsia/fuchsia_workflow.dart';
-import 'package:vm_service/vm_service.dart' as vm_service;
-import 'package:meta/meta.dart';
-import 'package:mockito/mockito.dart';
-import 'package:platform/platform.dart';
-import 'package:process/process.dart';
-
 import 'package:flutter_tools/src/application_package.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
+import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/base/os.dart';
+import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/time.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/device.dart';
-import 'package:flutter_tools/src/fuchsia/application_package.dart';
 import 'package:flutter_tools/src/fuchsia/amber_ctl.dart';
-import 'package:flutter_tools/src/fuchsia/fuchsia_device.dart';
+import 'package:flutter_tools/src/fuchsia/application_package.dart';
 import 'package:flutter_tools/src/fuchsia/fuchsia_dev_finder.dart';
+import 'package:flutter_tools/src/fuchsia/fuchsia_device.dart';
 import 'package:flutter_tools/src/fuchsia/fuchsia_kernel_compiler.dart';
 import 'package:flutter_tools/src/fuchsia/fuchsia_pm.dart';
 import 'package:flutter_tools/src/fuchsia/fuchsia_sdk.dart';
+import 'package:flutter_tools/src/fuchsia/fuchsia_workflow.dart';
 import 'package:flutter_tools/src/fuchsia/tiles_ctl.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/vmservice.dart';
+import 'package:meta/meta.dart';
+import 'package:mockito/mockito.dart';
+import 'package:process/process.dart';
+import 'package:vm_service/vm_service.dart' as vm_service;
 
 import '../../src/common.dart';
 import '../../src/context.dart';