Wouldn't it be better for version numbers to always exist? That way it's simple to know the exact version of your package that you're installing, even if it's just one package. I'd prefer for it not to be random.

On 16/05/2015 7:27 AM, Vladimír Čunát wrote:
Hi.

On 05/15/2015 11:09 PM, Amy de Buitléir wrote:
Q 1. Why do some packages have version numbers, and some don't? Are the ones
without version numbers some sort of "virtual" package?
Missing version should be considered a bug, I believe, at least in most
cases. I versioned dmenu2 in d41798321.

Q 2. Why can't I find some packages that I would expect to find? Are they
"hidden"? For example, I have the following in my /etc/nixos/configuration.nix:

   environment.systemPackages = with pkgs; [
     dmenu2
     dzen2
     haskellPackages.xmonad
     haskellPackages.xmonadContrib
     haskellPackages.xmonadExtras
     wget
     xsel
   ];

But if someone hadn't told me the names to put there, how could I have found
the names of the packages? Searching for them using nix-env didn't find them:
I consider that a bug, too.
Peti: I guess this would be because of haskellPackages missing
recurseIntoAttrs. I can't see it in there and no haskell packages are
shown for me on master.


Vladimir




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