Pass absolute path to git (redux).

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:io';
@@ skipping 355 matching lines @@
           printError(
               'Warning: Package "$name" does not have a "lib" directory.');
         }
 
         return new Future.immediate(to);
       }
     });
   });
 }
 
-/**
- * Given [entry] which may be a [String], [File], or [Directory] relative to
- * the current working directory, returns its full canonicalized path.
- */
-// TODO(rnystrom): Should this be async?
-String getFullPath(entry) => new File(_getPath(entry)).fullPathSync();
+/// Given [entry] which may be a [String], [File], or [Directory] relative to
+/// the current working directory, returns its full canonicalized path.
+String getFullPath(entry) {
+  var path = new Path(_getPath(entry));
+
+  // Don't do anything if it's already absolute.
+  if (path.isAbsolute) return path.toNativePath();
+
+  // Using Path.join here instead of File().fullPathSync() because the former
+  // does not require an actual file to exist at that path.
+  return new Path.fromNative(workingDir).join(path).toNativePath();
+}
 
 // TODO(nweiz): make this configurable
 /**
  * The amount of time in milliseconds to allow HTTP requests before assuming
  * they've failed.
  */
 final HTTP_TIMEOUT = 30 * 1000;
 
 /**
  * Opens an input stream for a HTTP GET request to [uri], which may be a
@@ skipping 369 matching lines @@
   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);
 }