lib.strings.makeSearchPath: use concatMap rather than map and filter

2026-10-03 21:40:12 +00:00 · 2026-05-11 11:53:43 -04:00
parent ec879e646e
commit 25604d3e68
1 changed files with 5 additions and 1 deletions
--- a/lib/strings.nix
+++ b/lib/strings.nix
@@ -16,6 +16,7 @@ rec {

  inherit (builtins)
    compareVersions
+    concatMap
    elem
    elemAt
    filter
@@ -564,7 +565,10 @@ rec {
    :::
  */
  makeSearchPath =
-    subDir: paths: concatStringsSep ":" (map (path: path + "/" + subDir) (filter (x: x != null) paths));
+    subDir: paths:
+    concatStringsSep ":" (
+      concatMap (path: if path != null then [ (path + "/" + subDir) ] else [ ]) paths
+    );

  /**
    Construct a Unix-style search path by appending the given