From 82e48e256725f4865dd92a307786b4713e551af7 Mon Sep 17 00:00:00 2001
From: Someone Serge <sergei.kozlukov@aalto.fi>
Date: Tue, 26 Dec 2023 22:20:07 +0000
Subject: [PATCH] nix: clean sources more thoroughly

...this way outPaths change less frequently,
and so there are fewer rebuilds
---
 .devops/nix/package.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/.devops/nix/package.nix b/.devops/nix/package.nix
index c54a7c3c6..2d0099457 100644
--- a/.devops/nix/package.nix
+++ b/.devops/nix/package.nix
@@ -112,7 +112,16 @@ effectiveStdenv.mkDerivation (
     pname = "llama-cpp${pnameSuffix}";
     version = llamaVersion;
 
-    src = lib.cleanSource ../../.;
+    src = lib.cleanSourceWith {
+      filter =
+        name: type:
+        !(builtins.any (_: _) [
+          (lib.hasSuffix ".nix" name) # Ignore *.nix files when computing outPaths
+          (name == "README.md") # Ignore *.md changes whe computing outPaths
+          (lib.hasPrefix "." name) # Skip hidden files and directories
+        ]);
+      src = lib.cleanSource ../../.;
+    };
 
     postPatch = ''
       substituteInPlace ./ggml-metal.m \