[PATCH 0 of 6] Improve requirement error message

[Pierre-Yves David]

On 18 juin 2011, at 13:09, Pierre-Yves David wrote:

> This series propose several improvements to the error message raise by missing
> requirements.

I forget to include sample output

Before:

> abort: unknown repository format: requires feature 'dotencode' (upgrade Mercurial)

This series proposal:

> abort: Mercurial 1.6.4 can not read this local repository!
>        It requires features: 'dotencore', 'generaldelta'.
> (see http://mercurial.selenic.com/wiki/RequiresFile for details)

Variation people might prefer:

1) swap line

> abort: repository requires features: 'dotencore', 'generaldelta',
>       Mercurial 1.6.4 can not read this local repository.
> (see http://mercurial.selenic.com/wiki/RequiresFile for details)

2) Longer more explicite version

> Mercurial 1.6.4 can not read this local repository created with a newer mercurial version.

We may even add an informative file with the version of mercurial used when creating a repo to display

> Mercurial 1.6.4 can not read this local repository created with a newer mercurial version (1.9.1)

-- 
Pierre-Yves

ps: thanks for patches review.