loadRubyEnv instantiates sources

This commit is contained in:
Alexander Flatter 2014-09-17 15:11:24 +02:00 committed by Charles Strahan
parent 2cb31d576a
commit 4d3932a29e

View file

@ -1,9 +1,38 @@
{rubyLibsWith, callPackage, lib}:
{rubyLibsWith, callPackage, lib, fetchurl, fetchgit}:
let
sourceInstantiators = {
# Many ruby people use `git ls-files` to compose their gemspecs.
git = (attrs: fetchgit { inherit (attrs) url rev sha256 leaveDotGit; });
url = (attrs: fetchurl { inherit (attrs) url sha256; });
};
in
{
# Loads a set containing a ruby environment definition. The set's `gemset`
# key is expected to contain a set of gems. Optionally, the `ruby_version`
# key can be set to a string. A gem definition looks like this:
#
# rack-test = {
# name = "rack-test-0.6.2";
# src = {
# type = "url";
# url = "https://rubygems.org/downloads/rack-test-0.6.2.gem";
# sha256 = "01mk715ab5qnqf6va8k3hjsvsmplrfqpz6g58qw4m3l8mim0p4ky";
# };
# dependencies = [ "rack" ];
# };
loadRubyEnv = path: config:
let
expr = callPackage path {};
expr = import path;
gemset = lib.mapAttrs (name: attrs:
attrs // {
src = (builtins.getAttr attrs.src.type sourceInstantiators) attrs.src;
dontBuild = !(attrs.src.type == "git");
}
) expr.gemset;
ruby = config.ruby;
rubyLibs = rubyLibsWith ruby;
gems = rubyLibs.importGems gemset (config.gemOverrides or (gemset: {}));