Cabal question: Generated data files

Alfonso Acosta alfonso.acosta at
Wed Aug 20 08:15:01 EDT 2008

Hi Neil,

Probably you've already considered this option but, How about a cabal

a) detects if the database-generating program is present (I asume it's
only present in the darcs version)
b) if present, generates the databases and puts them in the location
supplied in the cabal file.

I'm not aware though, if configure would complain about the databases
not being present at first instance.

On Wed, Aug 20, 2008 at 9:49 AM, Neil Mitchell <ndmitchell at> wrote:
> Hi,
> First off, this list seems a bit off-topic for a question about Cabal,
> but its what the web page told me to do: -
> if this isn't the place for this email, could someone update the web
> page?
> The question is about generated data files, specifically for Hoogle.
> Hoogle generates search databases, which I want to be installed as
> read-only data, in datadir. For a release I want to bundle up these
> databases in the tarball, pregenerated. I don't want to include these
> databases in the darcs version (they are fairly specific to a
> particular version and regularly changing), but I do want people to be
> able to build the darcs version using cabal. To generate these
> databases requires a second Haskell program (included in the darcs
> repo), and an installed copy of the same version of Hoogle.
> So, I want to generate database files, which can only be done after
> install time, but which I then want to be installed. Is there any way
> to acheive this? Or some better idea? Currently I just generate the
> databases and have the .cabal file reference them, which means the
> darcs version can't be compiled with Cabal.
> Thanks
> Neil
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