Merge pull request #69345 from joachifm/feat/split-version

Replace uses of splitString for splitting version strings

lib/default.nix

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

lib/tests/misc.nix

@@ -102,6 +102,21 @@ runTests {
     expected = [ "2001" "db8" "0" "0042" "" "8a2e" "370" "" ];
   };
 
+  testSplitVersionSingle = {
+    expr = versions.splitVersion "1";
+    expected = [ "1" ];
+  };
+
+  testSplitVersionDouble = {
+    expr = versions.splitVersion "1.2";
+    expected = [ "1" "2" ];
+  };
+
+  testSplitVersionTriple = {
+    expr = versions.splitVersion "1.2.3";
+    expected = [ "1" "2" "3" ];
+  };
+
   testIsStorePath =  {
     expr =
       let goodPath =

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: