From fd3052901c13af372228502350c444dddc21cb6e Mon Sep 17 00:00:00 2001
From: Joachim Fasting <joachifm@fastmail.fm>
Date: Tue, 24 Sep 2019 10:47:34 +0200
Subject: [PATCH] lib/versions: expose splitVersion

---
 lib/default.nix  |  2 ++
 lib/versions.nix | 12 +++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/lib/default.nix b/lib/default.nix
index 18d2dfae1e18..f293a1defb11 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -134,5 +134,7 @@ let
       mergeAttrsByFuncDefaultsClean mergeAttrBy
       fakeSha256 fakeSha512
       nixType imap;
+    inherit (versions)
+      splitVersion;
   });
 in lib
diff --git a/lib/versions.nix b/lib/versions.nix
index 2c05445b3dd0..0e9d81ac78b1 100644
--- a/lib/versions.nix
+++ b/lib/versions.nix
@@ -1,14 +1,16 @@
 /* Version string functions. */
 { lib }:
 
-let
+rec {
 
+  /* Break a version string into its component parts.
+
+     Example:
+       splitVersion "1.2.3"
+       => ["1" "2" "3"]
+  */
   splitVersion = builtins.splitVersion or (lib.splitString ".");
 
-in
-
-{
-
   /* Get the major version string from a string.
 
     Example: