Store library paths relative to a given application root folder.

pkg/kernel/lib/repository.dart

 // Copyright (c) 2016, 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.
 library kernel.repository;
 
-import 'dart:io';
-
-import 'package:path/path.dart' as pathlib;
-
 import 'ast.dart';
 
 /// Keeps track of which [Library] objects have been created for a given URI.
 ///
 /// To load different files into the same IR, pass in the same repository
 /// object to the loaders.
 class Repository {
-  final String workingDirectory;
   final Map<Uri, Library> _uriToLibrary = <Uri, Library>{};
   final List<Library> libraries = <Library>[];
 
-  Repository({String workingDirectory})
-      : this.workingDirectory = workingDirectory ?? Directory.current.path;
-
-  /// Get the [Library] object for the library addresesd by [path]; possibly
-  /// as an external library.
-  ///
-  /// The [path] may be a relative or absolute file path, or a URI string with a
-  /// `dart:`, `package:` or `file:` scheme.
-  ///
-  /// Note that this method does not check if the library can be loaded at all.
-  Library getLibrary(String path) {
-    return getLibraryReference(normalizePath(path));
-  }
-
-  String normalizeFileExtension(String path) {
-    if (path.endsWith('.dill')) {
-      return path.substring(0, path.length - '.dill'.length) + '.dart';
-    } else {
-      return path;
-    }
-  }
-
-  /// Get the canonical URI for the library addressed by the given [path].
-  ///
-  /// The [path] may be a relative or absolute file path, or a URI string with a
-  /// `dart:`, `package:` or `file:` scheme.
-  Uri normalizePath(String path) {
-    var uri = Uri.parse(path);
-    if (!uri.hasScheme) {
-      if (!pathlib.isAbsolute(path)) {
-        path = pathlib.join(workingDirectory, path);
-      }
-      uri = new Uri(scheme: 'file', path: normalizeFileExtension(path));
-    } else if (uri.scheme == 'file') {
-      var path = normalizeFileExtension(uri.path);
-      if (!uri.hasAbsolutePath) {
-        uri = uri.replace(path: pathlib.join(workingDirectory, path));
-      } else {
-        uri = uri.replace(path: path);
-      }
-    }
-    return uri;
-  }
-
   Library getLibraryReference(Uri uri) {
     assert(uri.hasScheme);
-    assert(uri.scheme != 'file' || uri.hasAbsolutePath);
     return _uriToLibrary.putIfAbsent(uri, () => _buildLibraryReference(uri));
   }
 
   Library _buildLibraryReference(Uri uri) {
+    assert(uri.hasScheme);
     var library = new Library(uri, isExternal: true);
     libraries.add(library);
     return library;
   }
 }