[Haskell-cafe] Version constraints and cabal.config files

Anthony Cowley acowley at seas.upenn.edu
Wed Mar 25 14:30:37 UTC 2015

On Wed, Mar 25, 2015 at 10:24 AM, Michael Snoyman <michael at snoyman.com> wrote:
> On Wed, Mar 25, 2015 at 4:17 PM Anthony Cowley <acowley at seas.upenn.edu>
> wrote:
>> The suggestion to use "cabal install --dependencies-only ..." instead
>> of "cabal freeze" in that issue is really nicely presented. "cabal
>> freeze" is close to the right thing, but it's just not as fully
>> featured as "cabal install" (e.g. taking flags).
>> As for Stackage, I think it would be helpful to cache the full build
>> plans computed for each package in Stackage. This is most of the work
>> my Nix tooling currently does, so it would be a big time saver.
> By "full build plans," do you mean the dist/setup-config file, or something
> else? That file would be problematic since it's Cabal-library-version
> specific IIRC. If you're looking for the full listing of deep dependencies
> and versions, we can extract that from the .yaml file using the technique I
> mentioned earlier.
> Michael

Yes, I meant the full listing of deep dependencies.


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