[Conal Elliott] Re: getting cabal to pass more info to haddock

Conal Elliott conal at conal.net
Mon Feb 19 18:04:24 EST 2007

I love this idea.  Having to specify the local interface file is a major
defect of my solution.  I'd much rather specify just the URL for the
external library docs.  I'd also be happy to adopt some convention about
where to put such docs so they could be determined automatically.  Perhaps
via indirection where necessary.  Then my per-project makefile content would
vanish altogether.

Ross: I don't understand the last remark below about my requirements differ
from HackageDB's.

  - Conal

On 2/19/07, Ross Paterson <ross at soi.city.ac.uk> wrote:
> On Fri, Jan 19, 2007 at 05:18:07PM -0800, Conal Elliott wrote:
> > So now I have just a new pair of flags enable-use-packages &
> > disable-use-packages, which control whether haddock gets
> > automatically-generated --use-package flags.
> There's a similar (but simpler) problem with generating Haddock
> documentation for HackageDB.  The trouble is that --use-package is
> half right: it gives the interface file you want, but the wrong URL for
> cross-references.  (And there's no way to override it, because haddock
> doesn't know which package a --read-interface option relates to.)
> For HackageDB, I think the appropriate thing would be for Cabal to use
> ghc-pkg to get the haddock-interfaces field (instead of asking haddock to
> ask ghc-pkg for it), but for the user to be able to override the HTML URL
> at configure time.  For HackageDB, a suitable template would be
> http://hackage.haskell.org/packages/archive/$pkg/$pkgid.misc/doc/html
> or
> http://hackage.haskell.org/packages/archive/$pkg/latest.misc/doc/html
> That wouldn't work for Conal's situation, where the URLs for his own
> packages point at a different place than the ones distributed with GHC.
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