actionpack 0.5.5

a lib for describing Actions and how they should be performed

actionpack

a lib for describing Actions and how they should be performed

Overview

Side effects are annoying. Verification of intended outcome is often difficult and can depend on the system's state at runtime. Questions like "Is the file going to be present when data is written?" or "Will that service be available?" come to mind. Keeping track of external system state is just impractical, but declaring intent and encapsulating its disposition is doable.

Usage

>>> action = ReadBytes('path/to/some/file')
...
>>> actions = [action,
...            ReadBytes('path/to/some/other/file'),
...            ReadInput('>>> how goes? <<<\n  > '),
...            MakeRequest('GET', 'http://google.com'),
...            RetryPolicy(MakeRequest('GET', 'http://bad-connectivity.com'),
...                        max_retries=2,
...                        delay_between_attempts=2)
...            WriteBytes('path/to/yet/another/file', b'sup')]
...
>>> procedure = Procedure(*actions, sync=False)
>>> procedure.execute()