From e4813107c373b002dbf521745270ac299b3c2d4e Mon Sep 17 00:00:00 2001
From: Wroclaw <wroclaw223@outlook.com>
Date: Wed, 2 Oct 2024 01:44:58 +0200
Subject: [PATCH] pkgs/overlays/cosmic-packages: use unstable pinned in
 upstream.

---
 pkgs/overlays/cosmic-packages.nix | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/pkgs/overlays/cosmic-packages.nix b/pkgs/overlays/cosmic-packages.nix
index 8f2cff8..4026eae 100644
--- a/pkgs/overlays/cosmic-packages.nix
+++ b/pkgs/overlays/cosmic-packages.nix
@@ -7,14 +7,18 @@ let
   cosmicPkgsMainDir = builtins.readDir "${nixos-cosmic}/pkgs";
   cosmicPkgsDirs = builtins.filter (v: cosmicPkgsMainDir."${v}" == "directory") (builtins.attrNames cosmicPkgsMainDir);
 
-  # Pinned unstable nixpkgs
+  # Pinned unstable nixpkgs from cosmic-modules
+  cosmicModulesLock = builtins.fromJSON (builtins.readFile "${nixos-cosmic}/flake.lock");
+  pinnedNixpkgsRev = cosmicModulesLock.nodes.nixpkgs.locked.rev;
+  pinnedNixpkgsNarHash = cosmicModulesLock.nodes.nixpkgs.locked.narHash;
+
   futureNixpkgsSrc = builtins.fetchTarball {
     name = "nixpkgs";
-    url = "https://github.com/NixOS/nixpkgs/archive/c3aa7b8938b17aebd2deecf7be0636000d62a2b9.tar.gz";
-    sha256 = "1ds3yjcy52l8d3rkxr3b7h9c0c3nly079bgakjaasnfjj3xprrwr";
+    url = "https://github.com/NixOS/nixpkgs/archive/${pinnedNixpkgsRev}.tar.gz";
+    sha256 = pinnedNixpkgsNarHash;
   };
 
-  # Take rustPackages from staging nixpkgs
+  # Take rustPackages from pinned nixpkgs
   futureNixpkgs = import futureNixpkgsSrc {
     localSystem = self.stdenv.buildPlatform;
     config = self.config;