ci: simplify nix hash updates (#9309)

1 files changed, 22 insertions, 2 deletions

diff --git a/flake.nix b/flake.nix
index 20833fc49..0f4250937 100644
--- a/flake.nix
+++ b/flake.nix
@@ -33,17 +33,37 @@
       packages = forEachSystem (
         pkgs:
         let
-          opencode = pkgs.callPackage ./nix/opencode.nix {
+          node_modules = pkgs.callPackage ./nix/node_modules.nix {
             inherit rev;
           };
+          opencode = pkgs.callPackage ./nix/opencode.nix {
+            inherit node_modules;
+          };
           desktop = pkgs.callPackage ./nix/desktop.nix {
             inherit opencode;
           };
+          # nixpkgs cpu naming to bun cpu naming
+          cpuMap = { x86_64 = "x64"; aarch64 = "arm64"; };
+          # matrix of node_modules builds - these will always fail due to fakeHash usage
+          # but allow computation of the correct hash from any build machine for any cpu/os
+          # see the update-nix-hashes workflow for usage
+          moduleUpdaters = pkgs.lib.listToAttrs (
+            pkgs.lib.concatMap (cpu:
+              map (os: {
+                name = "${cpu}_${os}_node_modules";
+                value = node_modules.override {
+                  bunCpu = cpuMap.${cpu};
+                  bunOs = os;
+                  hash = pkgs.lib.fakeHash;
+                };
+              }) [ "linux" "darwin" ]
+            ) [ "x86_64" "aarch64" ]
+          );
         in
         {
           default = opencode;
           inherit opencode desktop;
-        }
+        } // moduleUpdaters
       );
     };
 }