lib/versions: expose splitVersion

lib/default.nix

@@ -134,5 +134,7 @@ let
       mergeAttrsByFuncDefaultsClean mergeAttrBy
       fakeSha256 fakeSha512
       nixType imap;
+    inherit (versions)
+      splitVersion;
   });
 in lib

lib/versions.nix

@@ -1,13 +1,15 @@
 /* Version string functions. */
 { lib }:
 
-let
+rec {
 
-  splitVersion = builtins.splitVersion or (lib.splitString ".");
-
-in
+  /* Break a version string into its component parts.
 
-{
+     Example:
+       splitVersion "1.2.3"
+       => ["1" "2" "3"]
+  */
+  splitVersion = builtins.splitVersion or (lib.splitString ".");
 
   /* Get the major version string from a string.