tree 0a964992d176fcb03183d78376a85f66cf90d0d0
parent 71d3509c2ff4ad304843b2c2f1851b24248c7d08
author Shane Farmer <safarmer@google.com> 1497456628 -0700
committer Shane Farmer <safarmer@google.com> 1497901788 -0700

AAPT2: Read config from disk

Implement the todo left from last change to read the contents of the
configuration file from disk. Since this is an operation that may fail
the API was changed to take return a Maybe to indicate errors reading
the file.

Test: unit test for error condition
Test: ran aapt2 optimize with the new code path wired in

Change-Id: I93d532b4a57af9520231225eee4fc5f2b1a046b9