[Nix-dev] fixed-output derivation that *also* depend on (some of) its inputs?

[Vladimír Čunát]

Hi.

On 09/20/2014 08:34 PM, Bjørn Forsman wrote:
> IMHO, something like this could also be useful for fetchurl: Let's say
> we made it also depend on the*basename*  of url, then it'd re-download
> on package bumps but*not*  on mirror updates. (The fact that fetchurl
> ignores package bumps is slightly confusing.)

I don't have a clue what you want. If you need to download a different 
file, then the hash *will* change, and you have to rewrite it in the 
expression anyway.


Vladimir


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