blob: b078f4376143f3012e7ba107089938309307ff2b [file] [log] [blame]
// 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:async';
import 'dart:typed_data';
import 'package:meta/meta.dart';
import 'package:package_config/package_config.dart';
import '../base/common.dart';
import '../base/file_system.dart';
import '../base/logger.dart';
const String kPackagesFileName = '.packages';
// No touching!
String get globalPackagesPath => _globalPackagesPath ?? kPackagesFileName;
set globalPackagesPath(String value) {
_globalPackagesPath = value;
}
bool get isUsingCustomPackagesPath => _globalPackagesPath != null;
String _globalPackagesPath;
/// Load the package configuration from [file] or throws a [ToolExit]
/// if the operation would fail.
///
/// If [nonFatal] is true, in the event of an error an empty package
/// config is returned.
Future<PackageConfig> loadPackageConfigWithLogging(File file, {
@required Logger logger,
bool throwOnError = true,
}) async {
final FileSystem fileSystem = file.fileSystem;
bool didError = false;
final PackageConfig result = await loadPackageConfigUri(
file.absolute.uri,
loader: (Uri uri) {
final File configFile = fileSystem.file(uri);
if (!configFile.existsSync()) {
return null;
}
return Future<Uint8List>.value(configFile.readAsBytesSync());
},
onError: (dynamic error) {
if (!throwOnError) {
return;
}
logger.printTrace(error.toString());
String message = '${file.path} does not exist.';
final String pubspecPath = fileSystem.path.absolute(fileSystem.path.dirname(file.path), 'pubspec.yaml');
if (fileSystem.isFileSync(pubspecPath)) {
message += '\nDid you run "flutter pub get" in this directory?';
} else {
message += '\nDid you run this command from the same directory as your pubspec.yaml file?';
}
logger.printError(message);
didError = true;
}
);
if (didError) {
throwToolExit(null);
}
return result;
}