Alfred workflow that shows the size of a directory.
A specific directory can be specified in the workflow's
configuration sheet. Use keyword dirsize to show the
size of this directory.
There is also a “Show Size” File Action, which shows the size of any directory.
As the size of a directory is calculated on-the-fly, the workflow can be slow on large directory trees.
Under the hood, it uses du -h -d 0.
