Proposal: Make it possibly specify the component to build form the command line

Duncan Coutts duncan.coutts at
Fri Oct 7 02:20:37 CEST 2011

On Tue, 2011-10-04 at 19:27 -0700, Johan Tibell wrote:
> Hi,
> Here's a another proposal.
> Now when we start having more components in one package (library,
> executables, test suites, and soon benchmarks) it would be convient
> to specify what to build directly from the command line without having to
> reconfigure e.g.
>     cabal build my-test
> This would also allow one to enable all components e.g.
>     cabal configure --enable-tests --enable-benchmarks
> but only build one of them (for faster build times)
>     cabal build my-benchmark
> Would that work well with how Cabal keeps track of what to build?

Yeah, I hope to add this feature once I've integrated the cabal ghci
patches. For cabal ghci you need to be able to specify the component you
want to load, and we discussed extending this to cover build too.


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