[darcs-devel] darcs patch: Improve error messages in push_cmd

[Eric Y. Kow]

>   * Improve error messages in push_cmd
>   
>   I ran into this because MSYS was munging my repository directory in a
>   horrible way. This resulted in a bad repo directory getting passed into
>   darcs, which resulted in a fromJust error, which we all know makes the
>   baby Jesus cry. So, I at least refactored the code to give a better
>   error message, though there may well be a better solution.

Accepting this, thanks.

Controlled explosions does seem better than fromJust or head blowing up
by themselves.

-- 
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon français.
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