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bd3eee75f3
The flutter tool is currently unable to detect missing permissions in gradle/gradle.bat that would cause a gradle build to fail via process exception. Rather than crashing and exiting, we can display the exception as an error message and tool exit. While linux/macOS are able to add the +x bit, this is not possible on windows with our current file system/OS API. These crashes represent a substantial amount of crash reporting, but are otherwise not actionable on our end.
54 lines
1.8 KiB
Dart
54 lines
1.8 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Hide the original utf8 [Codec] so that we can export our own implementation
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// which adds additional error handling.
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import 'dart:convert' hide utf8;
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import 'dart:convert' as cnv show utf8, Utf8Decoder;
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import 'base/common.dart';
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export 'dart:convert' hide utf8, Utf8Codec, Utf8Decoder;
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/// A [Codec] which reports malformed bytes when decoding.
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///
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/// Occasionally people end up in a situation where we try to decode bytes
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/// that aren't UTF-8 and we're not quite sure how this is happening.
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/// This tells people to report a bug when they see this.
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class Utf8Codec extends Encoding {
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const Utf8Codec();
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@override
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Converter<List<int>, String> get decoder => const Utf8Decoder();
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@override
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Converter<String, List<int>> get encoder => cnv.utf8.encoder;
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@override
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String get name => cnv.utf8.name;
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}
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const Encoding utf8 = Utf8Codec();
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class Utf8Decoder extends cnv.Utf8Decoder {
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const Utf8Decoder({this.reportErrors = true}) : super(allowMalformed: true);
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final bool reportErrors;
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@override
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String convert(List<int> codeUnits, [ int start = 0, int end ]) {
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final String result = super.convert(codeUnits, start, end);
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// Finding a unicode replacement character indicates that the input
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// was malformed.
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if (reportErrors && result.contains('\u{FFFD}')) {
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throwToolExit(
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'Bad UTF-8 encoding found while decoding string: $result. '
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'The Flutter team would greatly appreciate if you could file a bug explaining '
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'exactly what you were doing when this happened:\n'
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'https://github.com/flutter/flutter/issues/new/choose\n'
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'The source bytes were:\n$codeUnits\n\n');
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}
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return result;
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}
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}
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