[Pkg-haskell-maintainers] Bug#578301: libghc6-type-level-dev: aliases slow down haddock index

[Tomáš Janoušek]

Hey Joachim,

On Fri, Jun 03, 2011 at 12:02:30AM +0200, Joachim Breitner wrote:
> here on my machine and with ghc-7.0.3, things are reasonably fast. Can
> you check whether it is still too slow for your, or whether maybe things
> have improved with the new ghc version?

Things are very fast indeed, because the documentation for type-level isn't
indexed. The reason for this is that:

$ dpkg -L libghc-type-level-dev | grep 'conf$'
/var/lib/ghc-7.0.3/package.conf.d/type-level-0.2.4.conf
$ grep haddock /var/lib/ghc-7.0.3/package.conf.d/type-level-0.2.4.conf
haddock-interfaces: /usr/lib/ghc-7.0.3/haddock/type-level-0.2.4/type-level.haddock
haddock-html: /usr/share/doc/libghc-type-level-doc/html/
$ dpkg -L libghc-type-level-doc | grep 'haddock$'
/usr/lib/ghc-7.0.2/haddock
/usr/lib/ghc-7.0.2/haddock/type-level-0.2.4/type-level.haddock

Notice that the files that should be in /usr/lib/ghc-7.0.3 are in /usr/lib/ghc-7.0.2.

If I modify /usr/lib/ghc-doc/gen_contents_index to replace the path for
type-level, then it gets slow again (24 seconds vs. 2 seconds if type-level is
ignored).

Regards,
-- 
Tomáš Janoušek, a.k.a. Liskni_si, http://work.lisk.in/