Assert that fish configuration is enabled if any user has fish as the…

…ir shell. Suggested-By: matthiasbeyer
NixOS · Jan 19, 2023 · 59296fb · 59296fb
1 parent 486c531
commit 59296fb
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/nixos/modules/config/users-groups.nix b/nixos/modules/config/users-groups.nix
@@ -693,6 +693,16 @@ in {
               users.groups.${user.name} = {};
             '';
           }
+          {
+            assertion = (user.shell == pkgs.fish) -> (config.programs.fish.enable == true);
+            message = ''
+              users.users.${user.name}.shell is set to fish, but
+              programs.fish.enable is not true. This will cause the fish shell
+              to lack the basic nix directories in its PATH and might make
+              logging in as that user impossible. You can fix it with:
+              programs.fish.enable = true;
+            '';
+          }
         ]
     ));