From 5f0b1b803500f468a1d60217cc0fc81bb8fd58aa Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Fri, 30 Nov 2018 09:40:53 +0100
Subject: lib: add mapNixDir{,1}

---
 lib/default.nix | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'lib')

diff --git a/lib/default.nix b/lib/default.nix
index a40225c4..7b964b22 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -44,6 +44,23 @@ let
 
     indent = replaceChars ["\n"] ["\n  "];
 
+    mapNixDir = f: x: {
+      list = foldl' mergeAttrs {} (map (mapNixDir1 f) x);
+      path = mapNixDir1 f x;
+    }.${typeOf x};
+
+    mapNixDir1 = f: dirPath:
+      listToAttrs
+        (map
+          (relPath: let
+            name = removeSuffix ".nix" relPath;
+            path = dirPath + "/${relPath}";
+          in
+            nameValuePair name (f path))
+          (filter
+            (name: name != "default.nix" && !hasPrefix "." name)
+            (attrNames (readDir dirPath))));
+
     # https://tools.ietf.org/html/rfc5952
     normalize-ip6-addr =
       let
-- 
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