[Haskell-cafe] Global Package Install

[Richard Eisenberg]

> On Mar 21, 2021, at 4:40 AM, Tom Ellis <tom-lists-haskell-cafe-2017 at jaguarpaw.co.uk> wrote:
> 
> So what are the benefits of the "global package database" workflow
> style?  Is it just that
> 
>  cabal -z repl --package QuickCheck --repl-options="whatever"
> 
> is more of a pain to type than
> 
>  ghci "whatever"
> 
> and that creating a .cabal file and running "cabal build" is more of a
> pain than typing "ghc", or is there something fundamental that the
> "global package database" supports that cabal v2-style does not?

Maybe it's superficial, but this is the big thing for me, yes. I also tend to have long-running ghci sessions, and so I don't always know what packages I'll want before launching.

Some of this is also, for me, philosophical: I don't want anything between me and GHC. That is, I want to know exactly what flags are being passed to GHC and to be able to control those flags myself. A tool that installs libraries should do that, and then get out of the way.

Richard
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