blob: 0e9474639420d7552a6f0d524cfd05f71b161121 [file] [log] [blame]
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// Implementations of [Packages] that can only be used in server based
/// applications.
library package_config.packages_io_impl;
import "dart:collection" show UnmodifiableMapView;
import "dart:io" show Directory;
import "package:path/path.dart" as path;
import "packages_impl.dart";
/// A [Packages] implementation based on a local directory.
class FilePackagesDirectoryPackages extends PackagesBase {
final Directory _packageDir;
final Map<String, Uri> _packageToBaseUriMap = <String, Uri>{};
Uri getBase(String packageName) {
return _packageToBaseUriMap.putIfAbsent(packageName, () {
return new Uri.file(path.join(_packageDir.path, packageName, '.'));
Iterable<String> _listPackageNames() {
return _packageDir
.where((e) => e is Directory)
.map((e) => path.basename(e.path));
Iterable<String> get packages => _listPackageNames();
Map<String, Uri> asMap() {
var result = <String, Uri>{};
for (var packageName in _listPackageNames()) {
result[packageName] = getBase(packageName);
return new UnmodifiableMapView<String, Uri>(result);