ANN: Cabal 1.22 and cabal-install 1.22

[Johan Tibell]

Daniel,

Can you please file a bug at https://github.com/haskell/cabal/issues so we
can track this?

On Mon, Jan 5, 2015 at 10:27 AM, Daniel Trstenjak <
daniel.trstenjak at gmail.com> wrote:

>
> Hi,
>
> sorry that I couldn't test Cabal 1.22 earlier, but there seems to be a
> change regarding the handling and pretty printing of the
> 'GenericPackageDescription' in Cabal 1.22.
>
> Now parsing a cabal file with 'parsePackageDescription' and pretty
> printing it with 'showGenericPackageDescription' will result into
> a cabal file where every section contains the 'build-depends' field twice.
>
> Previously the dependencies have been resolved into
> 'CondNode.condTreeConstraints'
> and the field 'BuildInfo.targetBuildDepends' has been emptied.
>
> Now it seems that both - 'CondNode.condTreeConstraints' and
> 'BuildInfo.targetBuildDepends' -
> contain the dependencies and therefore they're output twice.
>
>
> The resolving into 'CondNode.condTreeConstraints' always seemed a bit
> like a hack to me, because there's already the distiction between
> 'GenericPackageDescription'
> and 'PackageDescription', and 'PackageDescription' already represeting the
> resolved state,
> so I'm wondering if it wouldn't be best to let
> 'CondNode.condTreeConstraints' just go,
> or as a first step, not using it anymore.
>
>
> Greetings,
> Daniel
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>
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