nixpkgs/pkgs/development/interpreters/ruby/load-ruby-env.nix
Charles Strahan 845fed122a various fixes
2014-10-29 23:14:19 +00:00

37 lines
1,006 B
Nix

{ pkgs, lib, callPackage, gemFixes, fetchurl }:
{ gemset, ruby ? pkgs.ruby, fixes ? gemFixes }@args:
let
const = x: y: x;
buildRubyGem = callPackage ./gem.nix { inherit ruby; };
fetchers.gem = attrs: fetchurl {
url = "${attrs.src.source or "https://rubygems.org"}/downloads/${attrs.name}-${attrs.version}.gem";
inherit (attrs.src) sha256;
};
instantiate = (attrs:
let
gemPath = map (name: gemset''."${name}") (attrs.dependencies or []);
fixedAttrs = attrs // (fixes."${attrs.name}" or (const {})) attrs;
in
buildRubyGem (
fixedAttrs // {
name = "${attrs.name}-${attrs.version}";
src = fetchers."${attrs.src.type}" attrs;
inherit gemPath;
}
)
);
gemset' = if builtins.isAttrs gemset then gemset else callPackage gemset { };
gemset'' = lib.flip lib.mapAttrs gemset' (name: attrs:
if (lib.isDerivation attrs)
then attrs
else instantiate (attrs // { inherit name; })
);
in gemset''