[Haskell-cafe] cabal license check?

[Henk-Jan van Tuyl]

On Mon, 10 Oct 2011 16:53:29 +0200, Eric Y. Kow <eric.kow at gmail.com> wrote:

> Hi all,
>
> I'd like a tool that takes a .cabal file as input and produces a list of
> all dependencies (recursive, all the way to 'base') and some metadata
> for each (most importantly, LICENSE)
>
> Does this already exist, or will I to write it myself?
>
> I notice that there's a patch by Trevor Elliot to either Cabal or
> cabal-install that does something similar [1], and I know that Magnus
> Therning wrote a little tool that creates a GraphViz graph [2]... so it
> seems like all the pieces are there already.  But is there anything in
> some sort of ready-to-go just-works state, doing everything including
> interacting with hackage and sucking down the cabal files it needs, etc?

cab[0] can do that, for installed packages:
   cab deps -i -r -a vector
will generate a list of licenses for vector and the packages it depends  
upon, like this:
base 4.3.1.0 BSD3 ""
     ghc-prim 0.2.0.0 BSD3 ""
         rts 1.0 BSD3 ""
             ffi 1.0 BSD3 ""
     integer-gmp 0.2.0.3 BSD3 ""
         ghc-prim 0.2.0.0 BSD3 ""
             rts 1.0 BSD3 ""
                 ffi 1.0 BSD3 ""
     rts 1.0 BSD3 ""
         ffi 1.0 BSD3 ""
primitive 0.4.0.1 BSD3 "Roman Leshchinskiy <rl at cse.unsw.edu.au>"
     base 4.3.1.0 BSD3 ""
         ghc-prim 0.2.0.0 BSD3 ""
             rts 1.0 BSD3 ""
                 ffi 1.0 BSD3 ""
         integer-gmp 0.2.0.3 BSD3 ""
             ghc-prim 0.2.0.0 BSD3 ""
                 rts 1.0 BSD3 ""
                     ffi 1.0 BSD3 ""
         rts 1.0 BSD3 ""
             ffi 1.0 BSD3 ""
     ghc-prim 0.2.0.0 BSD3 ""
         rts 1.0 BSD3 ""
             ffi 1.0 BSD3 ""


Regards,
Henk-Jan van Tuyl

[0] http://hackage.haskell.org/package/cab


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