useVersion function added

svn path=/nixpkgs/trunk/; revision=9669
2007-11-14 21:57:26 +00:00 · 2007-11-14 21:57:26 +00:00 · c9560ff4b1
parent 1aa59d5407
commit c9560ff4b1
1 changed files with 7 additions and 0 deletions
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@ -147,6 +147,13 @@ rec {
  getVersion = name: alts: builtins.getAttr
    (getConfig [ "environment" "versions" name ] "default") alts;

+  # The same, another syntax.
+  # Warning: syntax for configuration.nix changed too
+  useVersion = name: f: f
+  {
+	  version = getConfig [ "environment" "versions" name ];
+  };
+
  # Whether user enabled given feature for the given package?
  getFlag = flag: package: default:
  getConfig [ "environment" "flags" package flag ]