Cabal and simultaneous installations of the same package

Michael Snoyman michael at
Wed Mar 25 07:17:15 UTC 2015

I replied on the GSoC proposal itself, but since it was cross-posted to the
mailing list, I'll include my comments here too:

I've reviewed this proposal, and I think it outlines a step in a good
direction. As I've discussed with Duncan in the past, my biggest concern
around a system like this is the complexity of the UI for a developer;
having to juggle different environments just to get basic work done could
be a significant hurdle. As long as attention is paid to ensuring no "UI
regression" for simple cases, I think this is worth pursuing.

On Tue, Mar 24, 2015 at 7:17 PM Vishal Agrawal 1<vishal4556 at>

> I am already planning to do a GSoC project based on it with a slightly
> larger aim. You can find my work in progress proposal at
> Also I have written a
> patch to make cabal non-destructive at
> Can you review the proposal and give me suggestions.
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