[Fab-user] awk's BEGIN/END in Fabric?

[Dmitry Makovey]

Hi,

Is there a way to code certain tasks in Fabric to be executed **always** at 
the start (prior to all tasks) and then certain other tasks **always** in the 
end (after all tasks finished).

One of the usecases would be timing of entire chain of executed tasks. 
Consider this:

$ fab task1 task2 task3
...
Total Time: 1m13s

$ fab task3 task1 task4
...
Total Time: 1m20s

I know I can just use:

$ time fab ...

Or wrap each task with a timing decorator, but then how do I print summary? 
How do I make sure all operations have been timed? etc.

but for that I have to remember to type that in every time, I can also do an 
alias "fab=time fab" but that's again something else. 

Something like a global context manager... but I can't find any reference to 
such machinery either in Fabric or in generic Python docs. Did anybody ever 
have to solve this kind of problem? How did you solve it?

-- 
Dmitry Makovey
Web Systems Administrator
Athabasca University
(780) 675-6245
---
Confidence is what you have before you understand the problem
    Woody Allen

When in trouble when in doubt run in circles scream and shout 
     http://www.wordwizard.com/phpbb3/viewtopic.php?f=16&t=19330


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