wither the Platform

[Roman Cheplyaka]

I also thought about it recently. IIRC ghc can already deal with any
number of stacked package dbs; we only need to expose this somehow
through cabal.

On 22/03/15 11:52, Herbert Valerio Riedel wrote:
> On 2015-03-21 at 18:54:26 +0100, Mark Lentczner wrote:
> 
> [...]
> 
>> The Platform arose in an era before sandboxes and before curated library
>> sets like Stackage and LTS. Last time we set direction was several years
>> ago. These new features and development have clearly changed the landscape
>> for use to reconsider what to do.
> 
> [...]
> 
>> Thoughts?
> 
> My biggest complaint about the current HP is that it pollutes the global
> package database with additional packages which leak into `cabal
> sandbox`es. This causes `cabal sandbox` to provide quite different
> sandbox environments for HP environments compared to a non-HP
> environment without those additional packages pre-installed.
> 
> Currently GHC/Cabal knows about a global package db and a user package
> db (the user pkg db is is what gets replaced/shadowed by cabal
> sandboxes). Maybe we need a 3rd package db sitting between the global
> and the user package db that interacts better with cabal sandboxes?
> 
> Cheers,
>   hvr
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