first commit

rI.nix

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+{ lib }:
+
+let
+  inherit (lib) hasSuffix;
+  inherit (builtins) concatMap isPath filter readFileType;
+
+  expandIfFolder = elem:
+    if !isPath elem || readFileType elem != "directory"
+      then [ elem ]
+    else lib.filesystem.listFilesRecursive elem;
+
+in
+  list: filter
+    # Filter out any path that doesn't look like `*.nix`. Don't forget to use
+    # toString to prevent copying paths to the store unnecessarily
+    (elem: !isPath elem || hasSuffix ".nix" (toString elem))
+    # Expand any folder to all the files within it.
+    (concatMap expandIfFolder list)