Re: [Haskell-cafe] Does exist something like "data-files" in Cabal, which works at compile time?

16 Aug 2013

      Thanks Dag, I'll give it a spin. Btw, I've successfully solved my problem
with the following Setup.hs, I'm posting it here in case someone will find
this useful in the future:

#!/usr/bin/env runhaskell
...
import Distribution.Simple
import Distribution.PackageDescription
import Distribution.Package
import Distribution.Simple
import Distribution.Simple.LocalBuildInfo
import Distribution.Simple.Setup
import Distribution.Verbosity
import Distribution.Simple.Utils
import Paths_myproject
main :: IO ()
main = defaultMainWithHooks myHooks
  where myHooks = simpleUserHooks { preBuild = copyResources }
copyResources :: Args
                     -> BuildFlags
                     -> IO HookedBuildInfo
copyResources args flags = do
  installDir <- getDataDir
  installDirectoryContents verbose "resources" (installDir ++ "/resources")
  return emptyHookedBuildInfo
where "myproject" should be the name of your project, as in myproject.cabal.

On 16 August 2013 13:11, Dag Odenhall  wrote:
...
You want extra-source-files. They'll be included in the tarball, and
cabal always builds from the root of the package, so you can safely use
relative paths.
On Fri, Aug 16, 2013 at 11:58 AM, Alfredo Di Napoli <
alfredo.dinapoli@gmail.com> wrote:
...
Hello guys,
I'm pretty sure the answer is "no", but I was hoping to get some extra
insight / best practices. The problem can be summarised by this SO question
(not the OP, but I have the same problem):
http://stackoverflow.com/questions/15731170/cabal-how-to-add-text-file-as-a-...
As someone states, "data-files" in for run-time, whereas I need to tell
cabal "please copy these files in place before trying to compile", so at
compile-time.
Does something similar exist?
I think the best solution, unless someone prove me wrong, is to create a
small startup script which copies the files for me (I *think* yesod is
using something similar, namely a script called EmbeddedFiles.hs) and then
triggers "cabal install" the usual way. Can you come up with a better way?
Thanks in advance!
Alfredo
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