[PATCH 2 of 2 V2] contrib: add a minimal extension enabling obsolescence

[Matt Mackall]

On Tue, 2013-01-22 at 03:36 +0100, Pierre-Yves David wrote:
> # HG changeset patch
> # User Pierre-Yves David <pierre-yves.david at logilab.fr>
> # Date 1358821461 -3600
> # Branch stable
> # Node ID e9421379b2f2ba7e5941d4b0361897c897d9c5ec
> # Parent  9f92ee2c969579d2c65cafaccffd938f82303982
> contrib: add a minimal extension enabling obsolescence
> 
> Changeset evolution is still not ready for prime time but we made huge progress
> toward it. The evolve extension is still necessary for daily usage client side,
> but a very simple extension in contrib will helps on two topics:
> 
> 1) setting up server:
> 
>    The evolve extension only adds new clients commands and UI message. It has no
>    added value for a server. Moreover, the evolve extension still have a
>    dependency to the debase extension that increase the amount of noise that an
>    administrator need to activate on a server.
> 
>    Having this little extensions available in contrib will help people to setup
>    server with obsolescence which is very valuable to find bug and collect
>     future statistics.
> 
> 2) testing:
> 
>    I expect a lot of third party codes and extensions to be incompatible with
>    filtering. Having this extension around will help to setup simple
>    instructions for testing them with this aspect of 2.5.

I'm afraid I don't get it. Why is this better than the evolve extension?
Because I don't have to download it onto my server to use it? Given that
I already have to do that to make my client go, that seems pretty minor.

This:

 [extensions]
 obs=/path/to/contrib/obs.py

is basically an equivalent but uglier version of the config switch I
rejected earlier.

-- 
Mathematics is the supreme nostalgia of our time.