From e99acbff72f2c258fb82e036d21e870a36da2c52 Mon Sep 17 00:00:00 2001
From: Michael Raskin <7c6f434c@mail.ru>
Date: Mon, 23 Nov 2009 19:18:53 +0000
Subject: Restore linkFarm trivial builder

svn path=/nixpkgs/trunk/; revision=18566
---
 pkgs/build-support/trivial-builders.nix | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'pkgs')

diff --git a/pkgs/build-support/trivial-builders.nix b/pkgs/build-support/trivial-builders.nix
index 1c9e7fc49f28..6a983c7ae017 100644
--- a/pkgs/build-support/trivial-builders.nix
+++ b/pkgs/build-support/trivial-builders.nix
@@ -68,4 +68,9 @@ rec {
       done < graph
     '';
 
+  # Quickly create a set of symlinks to derivations.
+  # entries is a list of attribute sets like { name = "name" ; path = "/nix/store/..."; }
+  linkFarm = name: entries: runCommand name {} ("mkdir -p $out; cd $out; \n" +
+    (lib.concatMapStrings (x: "ln -s '${x.path}' '${x.name}';\n") entries));
+
 }
-- 
cgit 1.4.1