From 1219a105928a50713d0d3ba156ac045d19f71f63 Mon Sep 17 00:00:00 2001
From: DavHau <hsngrmpf+github@gmail.com>
Date: Tue, 26 Oct 2021 20:53:29 +0700
Subject: [PATCH] overrides: allow passing functions for attributes

---
 src/utils/override.nix | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/utils/override.nix b/src/utils/override.nix
index 41d01299..47c8b85d 100644
--- a/src/utils/override.nix
+++ b/src/utils/override.nix
@@ -52,7 +52,19 @@ let
               (lib.filterAttrs (n: v: lib.hasPrefix "override" n) condOverride);
           in
             b.foldl'
-              (pkg: overrideFunc: pkg."${overrideFunc.funcName}" overrideFunc.func)
+              (pkg: overrideFunc:
+                pkg."${overrideFunc.funcName}"
+                (old:
+                  let
+                    updateAttrsFuncs = overrideFunc.func old;
+                  in
+                    lib.mapAttrs
+                      (attrName: maybeFunction:
+                        if b.isFunction maybeFunction then
+                          maybeFunction old."${attrName}"
+                        else
+                          maybeFunction)
+                      updateAttrsFuncs))
               pkg
               overrideFuncs;
       in