id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,difficulty,ghcversion,platform
889,Add option to list recursive dependencies of a package along with their licenses,joeyadams,,"It should be possible to list all of the dependencies of a package, including their licenses.  This would be useful for:

 * Developers writing proprietary applications.

 * Developers who don't want their liberally-licensed libraries to be ""upgraded"" to the GPL or similar by subtle dependencies.

Attached is a simple patch that makes cabal-install list this information when the verbosity level is 2 or higher.  Sample usage:

{{{
$ cabal install --verbose=2 --dry-run gnutls
Reading available packages...
Resolving dependencies...
base         BSD3
bytestring   BSD3
ffi          BSD3
ghc-prim     BSD3
gnutls       GPL (Just (Version {versionBranch = [3], versionTags = []}))
integer-gmp  BSD3
monads-tf    BSD3
rts          BSD3
transformers BSD3
In order, the following would be installed:
monads-tf-0.1.0.0 (new package)
gnutls-0.1 (new package)
}}}

This is a quick hack, as I am not familiar with the Cabal codebase.  This should probably be wrapped as a {{{--list-licenses}}} command line switch.  Pretty-printing licenses would be a plus.

I am already finding this feature useful, and hope others will too.",enhancement,new,normal,cabal-install-0.16,cabal-install tool,HEAD,normal,,,,unknown,,