From 10d74af2f640f29b134427002f6c623ae00c864d Mon Sep 17 00:00:00 2001
From: Nicolas Pierron <nicolas.b.pierron@gmail.com>
Date: Sat, 7 Nov 2009 01:58:56 +0000
Subject: * Add a type to handle environment variables with the usual string  
 separator ":".

svn path=/nixpkgs/trunk/; revision=18239
---
 pkgs/lib/types.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'pkgs/lib/types.nix')

diff --git a/pkgs/lib/types.nix b/pkgs/lib/types.nix
index 01a5d98fca6..c806e922e35 100644
--- a/pkgs/lib/types.nix
+++ b/pkgs/lib/types.nix
@@ -40,7 +40,7 @@ rec {
     };
 
     
-  types = {
+  types = rec {
 
     inferred = mkOptionType {
       name = "inferred type";
@@ -63,6 +63,12 @@ rec {
       merge = lib.concatStrings;
     };
 
+    envVar = mkOptionType {
+      name = "environment variable";
+      inherit (string) check;
+      merge = lib.concatStringsSep ":";
+    };
+
     attrs = mkOptionType {
       name = "attribute set";
       check = lib.traceValIfNot builtins.isAttrs;
-- 
cgit 1.4.1