[xmonad] Recommended setup for coding

[Ralph Hofmann]

Thanks for clearing this up, Quentin.

I have cabal-install already installed from hackage, but I am not yet
sure, how it plays together with darcs. When I enter "cabal list
xmonad", I get some xmonad packages. Is this already the darcs-version? 

By the way: How to remove packages correctly with cabal? There is no
uninstall.

Ralph

Am Samstag, den 23.01.2010, 12:20 +0100 schrieb Quentin Moser:
> If you aren't planning anything large-scale, you can use any XMonad
> install and create
> modules in your ~/.xmonad/lib directory, which is in the search path
> when XMonad compiles your config. So, for example:
> 
> ~/.xmonad/lib/XMonad/Layout/ANewLayout.hs
> ~/.xmonad/lib/XMonad/Util/SomeUtilityStuff.hs
> 
> You can import these in your xmonad.hs as if they were part of
> xmonad-contrib. Using the same hierarchy as the rest of XMonad also
> makes it easy to integrate your modules into the xmonad-contrib darcs
> repo if/when you think they're worth it.
> 
> 
> There are a number of problems with this simple method though:
> 
> * XMonad will recompile _all_ your imported lib/* modules on each
> recompile, so you can't keep too
>   much stuff in there. It will also compile them without optimizations
> to reduce the recompilation time,
>   and Haskell without optimization isn't really that fast anymore.
> 
> * You can't modify current modules in this way (unless you want to
> "overlay" them with a completely
>   new one).
> 
> * You still need to cabal-install the darcs version when you want to
> publish patches, since you need
>   to test them at least once against the current head.
> 
> 
> So if you find yourself writing a lot of modules, or sending patches
> to xmonad-contrib regularly, you'll need to work with cabal-install
> and the xmonad-contrib darcs repo. It's still fairly simple:
> 
> * Perform your modifications in the darcs directory.
> * Type "cabal install" at its top-level when you're done with a change.
> * "xmonad --recompile" to recompile your xmonad.hs using the new lib.
> * And you're working in a darcs repo, so you have version control handy.
> 
> As for the Haskell Platform, it contains cabal-install so if you can't
> find a cabal-install package for Ubuntu you can install that instead.,
> but there's nothing else you need in it.
> 
> 
> Hope it helps
> 
> Quentin
> 
> On Sat, Jan 23, 2010 at 10:50 AM, Ralph Hofmann <hofmann2004 at arcor.de> wrote:
> > I would like to try some haskell coding with xmonad. What is the best
> > xmonad install for this purpose?
> >
> > Is it essential to use the cabal version? What is your opinion about the
> > "Haskell Platform" instead of ghc -->
> > http://sporkcode.wordpress.com/2009/07/11/installing-the-haskell-platform-in-ubuntu/?
> >
> > So far i am using ghc/xmonad-0.9.1 from debian sid, installed on ubuntu
> > 9.10. If possible i would like to keep this unchanged, because
> > everything works fine.
> >
> >
> > Ralph
> >
> > _______________________________________________
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> > xmonad at haskell.org
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> >
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