dart-lang/spark — pull request #61 by devoncarew (2013-10-17 22:52:59+00:00)
Title: partial fix to grind compile issue

* shell out to polymer builder instead of running the code in our process. they have a disturbing tendency to use up all our file handles
* when runCommandSync() fails, fail the build
* avoid changing the cwd when possible
* change the one use of async to sync (an sync inline call to polymer becomes a sync process exec call)

@dinhviethoa