Support relative paths in path dependencies.

utils/pub/lock_file.dart

 // Copyright (c) 2012, 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 lock_file;
 
 import 'dart:json' as json;
+import 'io.dart';
 import 'package.dart';
 import 'source_registry.dart';
 import 'utils.dart';
 import 'version.dart';
 import '../../pkg/yaml/lib/yaml.dart';
 
 /// A parsed and validated `pubspec.lock` file.
 class LockFile {
   /// The packages this lockfile pins.
   Map<String, PackageId> packages;
 
   LockFile._(this.packages);
 
   LockFile.empty()
     : packages = <String, PackageId>{};
 
+  /// Loads a lockfile from [filePath].
+  factory LockFile.load(String filePath, SourceRegistry sources) {
+    return LockFile._parse(filePath, readTextFile(filePath), sources);
+  }
+
+  /// Parses a lockfile whose text is [contents].
+  factory LockFile.parse(String contents, SourceRegistry sources) {
+    return LockFile._parse(null, contents, sources);
+  }
+
   /// Parses the lockfile whose text is [contents].
-  factory LockFile.parse(String contents, SourceRegistry sources) {
+  static LockFile _parse(String filePath, String contents,
+      SourceRegistry sources) {
     var packages = <String, PackageId>{};
 
     if (contents.trim() == '') return new LockFile.empty();
     var parsed = loadYaml(contents);
 
     if (parsed.containsKey('packages')) {
       var packageEntries = parsed['packages'];
 
       packageEntries.forEach((name, spec) {
         // Parse the version.
@@ skipping 11 matching lines @@
           throw new FormatException(
               'Could not find a source named $sourceName.');
         }
         var source = sources[sourceName];
 
         // Parse the description.
         if (!spec.containsKey('description')) {
           throw new FormatException('Package $name is missing a description.');
         }
         var description = spec['description'];
-        source.validateDescription(description, fromLockFile: true);
+        description = source.parseDescription(filePath, description,
+            fromLockFile: true);
 
         var id = new PackageId(name, source, version, description);
 
         // Validate the name.
         if (name != id.name) {
           throw new FormatException(
             "Package name $name doesn't match ${id.name}.");
         }
 
         packages[name] = id;
@@ skipping 15 matching lines @@
     });
 
     // TODO(nweiz): Serialize using the YAML library once it supports
     // serialization. For now, we use JSON, since it's a subset of YAML anyway.
     return '''
         # Generated by pub. See: http://pub.dartlang.org/doc/glossary.html#lockfile
          ${json.stringify({'packages': packagesObj})}
         ''';
   }
 }