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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 /// Helper functionality to make working with IO easier. | 5 /// Helper functionality to make working with IO easier. |
6 library io; | 6 library io; |
7 | 7 |
8 import 'dart:async'; | 8 import 'dart:async'; |
9 import 'dart:io'; | 9 import 'dart:io'; |
10 import 'dart:isolate'; | 10 import 'dart:isolate'; |
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358 streamToLines(wrapInputStream(stdin).toStringStream()); | 358 streamToLines(wrapInputStream(stdin).toStringStream()); |
359 | 359 |
360 /// Displays a message and reads a yes/no confirmation from the user. Returns | 360 /// Displays a message and reads a yes/no confirmation from the user. Returns |
361 /// a [Future] that completes to `true` if the user confirms or `false` if they | 361 /// a [Future] that completes to `true` if the user confirms or `false` if they |
362 /// do not. | 362 /// do not. |
363 /// | 363 /// |
364 /// This will automatically append " (y/n)?" to the message, so [message] | 364 /// This will automatically append " (y/n)?" to the message, so [message] |
365 /// should just be a fragment like, "Are you sure you want to proceed". | 365 /// should just be a fragment like, "Are you sure you want to proceed". |
366 Future<bool> confirm(String message) { | 366 Future<bool> confirm(String message) { |
367 log.fine('Showing confirm message: $message'); | 367 log.fine('Showing confirm message: $message'); |
368 stdoutSink.add("$message (y/n)? ".charCodes); | 368 stdoutSink.add("$message (y/n)? ".codeUnits); |
369 return streamFirst(stdinLines) | 369 return streamFirst(stdinLines) |
370 .then((line) => new RegExp(r"^[yY]").hasMatch(line)); | 370 .then((line) => new RegExp(r"^[yY]").hasMatch(line)); |
371 } | 371 } |
372 | 372 |
373 /// Reads and discards all output from [inputStream]. Returns a [Future] that | 373 /// Reads and discards all output from [inputStream]. Returns a [Future] that |
374 /// completes when the stream is closed. | 374 /// completes when the stream is closed. |
375 Future drainInputStream(InputStream inputStream) { | 375 Future drainInputStream(InputStream inputStream) { |
376 var completer = new Completer(); | 376 var completer = new Completer(); |
377 if (inputStream.closed) { | 377 if (inputStream.closed) { |
378 completer.complete(); | 378 completer.complete(); |
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860 const PubProcessResult(this.stdout, this.stderr, this.exitCode); | 860 const PubProcessResult(this.stdout, this.stderr, this.exitCode); |
861 | 861 |
862 bool get success => exitCode == 0; | 862 bool get success => exitCode == 0; |
863 } | 863 } |
864 | 864 |
865 /// Gets a [Uri] for [uri], which can either already be one, or be a [String]. | 865 /// Gets a [Uri] for [uri], which can either already be one, or be a [String]. |
866 Uri _getUri(uri) { | 866 Uri _getUri(uri) { |
867 if (uri is Uri) return uri; | 867 if (uri is Uri) return uri; |
868 return Uri.parse(uri); | 868 return Uri.parse(uri); |
869 } | 869 } |
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