Add git config option to automatically convert CRLF to LF (#8122)

diff --git a/dev/bots/test.dart b/dev/bots/test.dart
index ca445f1..964d5b0 100644
--- a/dev/bots/test.dart
+++ b/dev/bots/test.dart
@@ -1,167 +1,167 @@
-import 'dart:io';

-import 'dart:async';

-

-import 'package:path/path.dart' as p;

-

-String flutterRoot = p.dirname(p.dirname(p.dirname(p.fromUri(Platform.script))));

-String flutter = p.join(flutterRoot, 'bin', Platform.isWindows ? 'flutter.bat' : 'flutter');

-String dart = p.join(flutterRoot, 'bin', 'cache', 'dart-sdk', 'bin', Platform.isWindows ? 'dart.exe' : 'dart');

-String flutterTestArgs = Platform.environment['FLUTTER_TEST_ARGS'];

-

-/// When you call this, you can set FLUTTER_TEST_ARGS to pass custom

-/// arguments to flutter test. For example, you might want to call this

-/// script using FLUTTER_TEST_ARGS=--local-engine=host_debug_unopt to

-/// use your own build of the engine.

-Future<Null> main() async {

-  // Analyze all the Dart code in the repo.

-  await _runFlutterAnalyze(flutterRoot,

-      options: <String>['--flutter-repo'],

-  );

-

-  // Verify that the tests actually return failure on failure and success on success.

-  String automatedTests = p.join(flutterRoot, 'dev', 'automated_tests');

-  await _runFlutterTest(automatedTests,

-      script: p.join('test_smoke_test', 'fail_test.dart'),

-      expectFailure: true,

-      printOutput: false,

-  );

-  await _runFlutterTest(automatedTests,

-      script: p.join('test_smoke_test', 'pass_test.dart'),

-      printOutput: false,

-  );

-  await _runFlutterTest(automatedTests,

-      script: p.join('test_smoke_test', 'crash1_test.dart'),

-      expectFailure: true,

-      printOutput: false,

-  );

-  await _runFlutterTest(automatedTests,

-      script: p.join('test_smoke_test', 'crash2_test.dart'),

-      expectFailure: true,

-      printOutput: false,

-  );

-  await _runFlutterTest(automatedTests,

-      script: p.join('test_smoke_test', 'syntax_error_test.broken_dart'),

-      expectFailure: true,

-      printOutput: false,

-  );

-  await _runFlutterTest(automatedTests,

-      script: p.join('test_smoke_test', 'missing_import_test.broken_dart'),

-      expectFailure: true,

-      printOutput: false,

-  );

-  await _runCmd(flutter, <String>['drive', '--use-existing-app', '-t', p.join('test_driver', 'failure.dart')],

-      workingDirectory: p.join(flutterRoot, 'packages', 'flutter_driver'),

-      expectFailure: true,

-      printOutput: false,

-      skip: Platform.isWindows, // TODO(goderbauer): run on Windows when 'drive' command works

-  );

-

-  List<String> coverageFlags = <String>[];

-  if (Platform.environment['TRAVIS'] != null && Platform.environment['TRAVIS_PULL_REQUEST'] == 'false')

-    coverageFlags.add('--coverage');

-

-  // Run tests.

-  await _runFlutterTest(p.join(flutterRoot, 'packages', 'flutter'),

-      options: coverageFlags,

-  );

-  await _runAllDartTests(p.join(flutterRoot, 'packages', 'flutter_driver'));

-  await _runFlutterTest(p.join(flutterRoot, 'packages', 'flutter_test'));

-  await _runFlutterTest(p.join(flutterRoot, 'packages', 'flutter_markdown'));

-  await _runAllDartTests(p.join(flutterRoot, 'packages', 'flutter_tools'),

-      environment: <String, String>{ 'FLUTTER_ROOT': flutterRoot },

-  );

-

-  await _runAllDartTests(p.join(flutterRoot, 'dev', 'devicelab'));

-  await _runFlutterTest(p.join(flutterRoot, 'dev', 'manual_tests'));

-  await _runFlutterTest(p.join(flutterRoot, 'examples', 'hello_world'));

-  await _runFlutterTest(p.join(flutterRoot, 'examples', 'layers'));

-  await _runFlutterTest(p.join(flutterRoot, 'examples', 'stocks'));

-  await _runFlutterTest(p.join(flutterRoot, 'examples', 'flutter_gallery'));

-

-  await _runCmd(dart, <String>[p.join(flutterRoot, 'dev', 'tools', 'mega_gallery.dart')],

-      workingDirectory: flutterRoot,

-  );

-  await _runFlutterAnalyze(p.join(flutterRoot, 'dev', 'benchmarks', 'mega_gallery'),

-      options: <String>['--watch', '--benchmark'],

-  );

-

-  print('\x1B[32mDONE: All tests successful.\x1B[0m');

-}

-

-Future<Null> _runCmd(String executable, List<String> arguments, {

-    String workingDirectory,

-    Map<String, String> environment,

-    bool expectFailure: false,

-    bool printOutput: true,

-    bool skip: false,

-}) async {

-  String cmd = '${p.relative(executable)} ${arguments.join(' ')}';

-  String relativeWorkingDir = p.relative(workingDirectory);

-  if (skip) {

-    _printProgress('SKIPPING', relativeWorkingDir, cmd);

-    return null;

-  }

-  _printProgress('RUNNING', relativeWorkingDir, cmd);

-

-  Process process = await Process.start(executable, arguments,

-      workingDirectory: workingDirectory,

-      environment: environment,

-  );

-

-  if (printOutput) {

-    stdout.addStream(process.stdout);

-    stderr.addStream(process.stderr);

-  }

-

-  int exitCode = await process.exitCode;

-  if ((exitCode == 0) == expectFailure) {

-    print(

-        '\x1B[31m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\x1B[0m\n'

-        '\x1B[1mERROR:\x1B[31m Last command exited with $exitCode (expected: ${expectFailure ? 'non-zero' : 'zero'}).\x1B[0m\n'

-        '\x1B[31m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\x1B[0m'

-    );

-    exit(1);

-  }

-}

-

-Future<Null> _runFlutterTest(String workingDirectory, {

-    String script,

-    bool expectFailure: false,

-    bool printOutput: true,

-    List<String> options: const <String>[],

-    bool skip: false,

-}) {

-  List<String> args = <String>['test']..addAll(options);

-  if (flutterTestArgs != null)

-    args.add(flutterTestArgs);

-  if (script != null)

-    args.add(script);

-  return _runCmd(flutter, args,

-      workingDirectory: workingDirectory,

-      expectFailure: expectFailure,

-      printOutput: printOutput,

-      skip: skip || Platform.isWindows, // TODO(goderbauer): run on Windows when sky_shell is available

-  );

-}

-

-Future<Null> _runAllDartTests(String workingDirectory, {

-    Map<String, String> environment,

-}) {

-  List<String> args = <String>['--checked', p.join('test', 'all.dart')];

-  return _runCmd(dart, args,

-      workingDirectory: workingDirectory,

-      environment: environment,

-  );

-}

-

-Future<Null> _runFlutterAnalyze(String workingDirectory, {

-    List<String> options: const <String>[]

-}) {

-  return _runCmd(flutter, <String>['analyze']..addAll(options),

-      workingDirectory: workingDirectory,

-  );

-}

-

-void _printProgress(String action, String workingDir, String cmd) {

-  print('>>> $action in \x1B[36m$workingDir\x1B[0m: \x1B[33m$cmd\x1B[0m');

-}

+import 'dart:io';
+import 'dart:async';
+
+import 'package:path/path.dart' as p;
+
+String flutterRoot = p.dirname(p.dirname(p.dirname(p.fromUri(Platform.script))));
+String flutter = p.join(flutterRoot, 'bin', Platform.isWindows ? 'flutter.bat' : 'flutter');
+String dart = p.join(flutterRoot, 'bin', 'cache', 'dart-sdk', 'bin', Platform.isWindows ? 'dart.exe' : 'dart');
+String flutterTestArgs = Platform.environment['FLUTTER_TEST_ARGS'];
+
+/// When you call this, you can set FLUTTER_TEST_ARGS to pass custom
+/// arguments to flutter test. For example, you might want to call this
+/// script using FLUTTER_TEST_ARGS=--local-engine=host_debug_unopt to
+/// use your own build of the engine.
+Future<Null> main() async {
+  // Analyze all the Dart code in the repo.
+  await _runFlutterAnalyze(flutterRoot,
+      options: <String>['--flutter-repo'],
+  );
+
+  // Verify that the tests actually return failure on failure and success on success.
+  String automatedTests = p.join(flutterRoot, 'dev', 'automated_tests');
+  await _runFlutterTest(automatedTests,
+      script: p.join('test_smoke_test', 'fail_test.dart'),
+      expectFailure: true,
+      printOutput: false,
+  );
+  await _runFlutterTest(automatedTests,
+      script: p.join('test_smoke_test', 'pass_test.dart'),
+      printOutput: false,
+  );
+  await _runFlutterTest(automatedTests,
+      script: p.join('test_smoke_test', 'crash1_test.dart'),
+      expectFailure: true,
+      printOutput: false,
+  );
+  await _runFlutterTest(automatedTests,
+      script: p.join('test_smoke_test', 'crash2_test.dart'),
+      expectFailure: true,
+      printOutput: false,
+  );
+  await _runFlutterTest(automatedTests,
+      script: p.join('test_smoke_test', 'syntax_error_test.broken_dart'),
+      expectFailure: true,
+      printOutput: false,
+  );
+  await _runFlutterTest(automatedTests,
+      script: p.join('test_smoke_test', 'missing_import_test.broken_dart'),
+      expectFailure: true,
+      printOutput: false,
+  );
+  await _runCmd(flutter, <String>['drive', '--use-existing-app', '-t', p.join('test_driver', 'failure.dart')],
+      workingDirectory: p.join(flutterRoot, 'packages', 'flutter_driver'),
+      expectFailure: true,
+      printOutput: false,
+      skip: Platform.isWindows, // TODO(goderbauer): run on Windows when 'drive' command works
+  );
+
+  List<String> coverageFlags = <String>[];
+  if (Platform.environment['TRAVIS'] != null && Platform.environment['TRAVIS_PULL_REQUEST'] == 'false')
+    coverageFlags.add('--coverage');
+
+  // Run tests.
+  await _runFlutterTest(p.join(flutterRoot, 'packages', 'flutter'),
+      options: coverageFlags,
+  );
+  await _runAllDartTests(p.join(flutterRoot, 'packages', 'flutter_driver'));
+  await _runFlutterTest(p.join(flutterRoot, 'packages', 'flutter_test'));
+  await _runFlutterTest(p.join(flutterRoot, 'packages', 'flutter_markdown'));
+  await _runAllDartTests(p.join(flutterRoot, 'packages', 'flutter_tools'),
+      environment: <String, String>{ 'FLUTTER_ROOT': flutterRoot },
+  );
+
+  await _runAllDartTests(p.join(flutterRoot, 'dev', 'devicelab'));
+  await _runFlutterTest(p.join(flutterRoot, 'dev', 'manual_tests'));
+  await _runFlutterTest(p.join(flutterRoot, 'examples', 'hello_world'));
+  await _runFlutterTest(p.join(flutterRoot, 'examples', 'layers'));
+  await _runFlutterTest(p.join(flutterRoot, 'examples', 'stocks'));
+  await _runFlutterTest(p.join(flutterRoot, 'examples', 'flutter_gallery'));
+
+  await _runCmd(dart, <String>[p.join(flutterRoot, 'dev', 'tools', 'mega_gallery.dart')],
+      workingDirectory: flutterRoot,
+  );
+  await _runFlutterAnalyze(p.join(flutterRoot, 'dev', 'benchmarks', 'mega_gallery'),
+      options: <String>['--watch', '--benchmark'],
+  );
+
+  print('\x1B[32mDONE: All tests successful.\x1B[0m');
+}
+
+Future<Null> _runCmd(String executable, List<String> arguments, {
+    String workingDirectory,
+    Map<String, String> environment,
+    bool expectFailure: false,
+    bool printOutput: true,
+    bool skip: false,
+}) async {
+  String cmd = '${p.relative(executable)} ${arguments.join(' ')}';
+  String relativeWorkingDir = p.relative(workingDirectory);
+  if (skip) {
+    _printProgress('SKIPPING', relativeWorkingDir, cmd);
+    return null;
+  }
+  _printProgress('RUNNING', relativeWorkingDir, cmd);
+
+  Process process = await Process.start(executable, arguments,
+      workingDirectory: workingDirectory,
+      environment: environment,
+  );
+
+  if (printOutput) {
+    stdout.addStream(process.stdout);
+    stderr.addStream(process.stderr);
+  }
+
+  int exitCode = await process.exitCode;
+  if ((exitCode == 0) == expectFailure) {
+    print(
+        '\x1B[31m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\x1B[0m\n'
+        '\x1B[1mERROR:\x1B[31m Last command exited with $exitCode (expected: ${expectFailure ? 'non-zero' : 'zero'}).\x1B[0m\n'
+        '\x1B[31m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\x1B[0m'
+    );
+    exit(1);
+  }
+}
+
+Future<Null> _runFlutterTest(String workingDirectory, {
+    String script,
+    bool expectFailure: false,
+    bool printOutput: true,
+    List<String> options: const <String>[],
+    bool skip: false,
+}) {
+  List<String> args = <String>['test']..addAll(options);
+  if (flutterTestArgs != null)
+    args.add(flutterTestArgs);
+  if (script != null)
+    args.add(script);
+  return _runCmd(flutter, args,
+      workingDirectory: workingDirectory,
+      expectFailure: expectFailure,
+      printOutput: printOutput,
+      skip: skip || Platform.isWindows, // TODO(goderbauer): run on Windows when sky_shell is available
+  );
+}
+
+Future<Null> _runAllDartTests(String workingDirectory, {
+    Map<String, String> environment,
+}) {
+  List<String> args = <String>['--checked', p.join('test', 'all.dart')];
+  return _runCmd(dart, args,
+      workingDirectory: workingDirectory,
+      environment: environment,
+  );
+}
+
+Future<Null> _runFlutterAnalyze(String workingDirectory, {
+    List<String> options: const <String>[]
+}) {
+  return _runCmd(flutter, <String>['analyze']..addAll(options),
+      workingDirectory: workingDirectory,
+  );
+}
+
+void _printProgress(String action, String workingDir, String cmd) {
+  print('>>> $action in \x1B[36m$workingDir\x1B[0m: \x1B[33m$cmd\x1B[0m');
+}