[Nix-dev] Meta information for packages?

[Marc Weber]

Most packaging systems do provide some short additional information
about packages

In gentoo you can get this (arbitrarely taken) record

*  sys-apps/ucspi-unix
      Latest version available: 0.36-r1
      Latest version installed: [ Not Installed ]
      Size of downloaded files: 41 kB
      Homepage:    http://untroubled.org/ucspi-unix/
      Description: A ucspi implementation for unix sockets
      License:     GPL-2

Do you mind me adding some support for meta information?

How should this look like?

I think just
stdenv.mkDerivation {
  meta = { author = "..."
         ; description = "..."
         ; homepage = "..."
         ; ....
         }
  }
  ...
}

and adding some possibility to query it from nix-env 
  nix-env --show-meta <package-name>

would be enough.

Any comments?

Marc