From 6afe4305b4061d42bf3d226914431d295b4bd5fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Fri, 27 Jun 2025 19:12:44 +0200
Subject: [PATCH] select: drop unused nixpkgs fallback

---
 pkgs/clan-cli/clan_lib/flake/flake.py | 16 +---------------
 pkgs/clan-cli/default.nix             |  1 -
 2 files changed, 1 insertion(+), 16 deletions(-)

diff --git a/pkgs/clan-cli/clan_lib/flake/flake.py b/pkgs/clan-cli/clan_lib/flake/flake.py
index 4ed762e3e..f7cd1440b 100644
--- a/pkgs/clan-cli/clan_lib/flake/flake.py
+++ b/pkgs/clan-cli/clan_lib/flake/flake.py
@@ -720,7 +720,7 @@ class Flake:
             AssertionError: If the cache or flake cache path is not properly initialized.
         """
         from clan_lib.cmd import Log, RunOpts, run
-        from clan_lib.dirs import nixpkgs_source, select_source
+        from clan_lib.dirs import select_source
         from clan_lib.nix import (
             nix_build,
             nix_config,
@@ -739,20 +739,6 @@ class Flake:
 
         config = nix_config()
 
-        # these hashes should be filled in by `nix build`
-        # if we run this Python code directly then we use a fallback
-        # method to getting the NAR hash
-        fallback_nixpkgs_hash = "@fallback_nixpkgs_hash@"
-        if not fallback_nixpkgs_hash.startswith("sha256-"):
-            fallback_nixpkgs = Flake(
-                str(nixpkgs_source()), nix_options=self.nix_options
-            )
-            fallback_nixpkgs.invalidate_cache()
-            assert fallback_nixpkgs.hash is not None, (
-                "this should be impossible as invalidate_cache() should always set `hash`"
-            )
-            fallback_nixpkgs_hash = fallback_nixpkgs.hash
-
         select_hash = "@select_hash@"
         if not select_hash.startswith("sha256-"):
             select_flake = Flake(str(select_source()), nix_options=self.nix_options)
diff --git a/pkgs/clan-cli/default.nix b/pkgs/clan-cli/default.nix
index d35dd7a6c..a4c0c981a 100644
--- a/pkgs/clan-cli/default.nix
+++ b/pkgs/clan-cli/default.nix
@@ -70,7 +70,6 @@ let
         rm -f $out/clan_lib/select
 
         substituteInPlace $out/clan_lib/flake/flake.py \
-          --replace-fail '@fallback_nixpkgs_hash@' "$(jq -r '.nodes.nixpkgs.locked.narHash' ${nixpkgs'}/flake.lock)" \
           --replace-fail '@select_hash@' "$(jq -r '.nodes."nix-select".locked.narHash' ${../../flake.lock})"
         ln -sf ${nixpkgs'} $out/clan_lib/nixpkgs
         ln -sf ${nix-select} $out/clan_lib/select