Remove Nix files in copyPathToStore

Nix files shouldn't be considered part of the sources, and so they
should be filtered out.  This way, changes to them (that don't change
their meaning) won't force rebuilds.

1 files changed, 4 insertions, 2 deletions

diff --git a/img/live/default.nix b/img/live/default.nix
index bebc1c1..770b03b 100644
--- a/img/live/default.nix
+++ b/img/live/default.nix
@@ -4,7 +4,7 @@
 { pkgs ? import <nixpkgs> {} }:
 
 let
-  inherit (pkgs.lib) cleanSource cleanSourceWith;
+  inherit (pkgs.lib) cleanSource cleanSourceWith hasSuffix;
 
   extfs = pkgs.pkgsStatic.callPackage ../../host/initramfs/extfs.nix {
     inherit pkgs;
@@ -20,7 +20,9 @@ stdenv.mkDerivation {
   name = "spectrum-live.img";
 
   src = cleanSourceWith {
-    filter = name: _type: name != "${toString ./.}/build";
+    filter = name: _type:
+      name != "${toString ./.}/build" &&
+      !(hasSuffix ".nix" name);
     src = cleanSource ./.;
   };