Re: [Haskell-cafe] Re: GSoC: Improving Cabal's Test Support

As I understand it, there is only one place in the Cabal package where *build* dependencies appear, in contrast to lines in the Library and Executable sections where the *install* dependencies appear (i.e., you might not need all of the build dependences around merely to use the library or programs). So there would need to be a way of specifying in the .cabal file in a convenient way (i.e., hopefully without having the package writer manually specify conditionals) that some of the *build* dependencies only apply if one is building the test packages. Cheers, Greg On Apr 6, 2010, at 6:37 PM, Thomas Tuegel wrote:

On Tue, Apr 6, 2010 at 9:00 PM, Gregory Crosswhite wrote:

...

Sounds like a good plan to me!

You still need some way to separate out the test dependencies from the main build dependencies, though. Perhaps as a separate line in the main Cabal header section?

I think I can implement this inside Cabal in the conversion from GenericPackageDescription to PackageDescription, as if it were implemented all in terms of conditionals. So, if tests are enabled, the test executables are in the PackageDescription and their dependencies get pulled in; if tests are disabled, the executables get cut from the PackageDescription. Am I missing something?

-- Thomas Tuegel