adds file path source to pub

utils/pub/io.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.
 
 /// Helper functionality to make working with IO easier.
 library io;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:isolate';
@@ skipping 380 matching lines @@
 }
 
 /// Creates a new symlink that creates an alias from the `lib` directory of
 /// package [from] to [to], both of which can be a [String], [File], or
 /// [Directory]. Returns a [Future] which completes to the symlink file (i.e.
 /// [to]). If [from] does not have a `lib` directory, this shows a warning if
 /// appropriate and then does nothing.
 Future<File> createPackageSymlink(String name, from, to,
     {bool isSelfLink: false}) {
   // See if the package has a "lib" directory.
-  from = join(from, 'lib');
+  // Note(Sam): Relative paths causes issues when cwd is different.
+  //            also, absolute paths are safer when app is moved around.
+  from = getFullPath(join(from, 'lib'));
   return dirExists(from).then((exists) {
     log.fine("Creating ${isSelfLink ? "self" : ""}link for package '$name'.");
     if (exists) return createSymlink(from, to);
 
     // It's OK for the self link (i.e. the root package) to not have a lib
     // directory since it may just be a leaf application that only has
     // code in bin or web.
     if (!isSelfLink) {
       log.warning('Warning: Package "$name" does not have a "lib" directory so '
                   'you will not be able to import any libraries from it.');
@@ skipping 618 matching lines @@
 Directory _getDirectory(entry) {
   if (entry is Directory) return entry;
   return new Directory(entry);
 }
 
 /// Gets a [Uri] for [uri], which can either already be one, or be a [String].
 Uri _getUri(uri) {
   if (uri is Uri) return uri;
   return new Uri.fromString(uri);
 }