ghc-pkg query feature request
brianlsmith at gmail.com
Tue Jul 26 20:13:19 EDT 2005
On 7/26/05, Simon Marlow <simonmar at microsoft.com> wrote:
> On 26 July 2005 09:23, Lennart Kolmodin wrote:
> > When working with multiple versions of a package you often want to use
> > the most recent version.
> > A feature that would help for package systems is to be able to query
> > ghc-pkg for the best version, or to list the versions in increasing
> > version order.
> > Something like:
> > $ ghc-pkg best_version Cabal
> > Cabal-1.1.1
> > $ ghc-pkg versions Cabal
> > Cabal-1.0 Cabal-1.1.1
> > You get the picture. Obviously, this feature isn't critical since we
> > could use 'ghc-pkg list' and work our way from there, but it would be
> > nice. If you like the idea we might send you a patch.
> > What do you think?
> Sure, I'll commit a patch if you send one. Perhaps
> $ ghc-pkg list Cabal
> Cabal-1.0 Cabal-1.1.1
> would be the simplest extension?
Also, it would be nice if the package list was sorted, so that
(Cabal-1.0) comes immediately before (Cabal-1.1.1) immediately before
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