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Diffstat (limited to 'pkgs/top-level/default.nix')
-rw-r--r-- | pkgs/top-level/default.nix | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/pkgs/top-level/default.nix b/pkgs/top-level/default.nix index 10cf36d4d13e5..10d0c79b21296 100644 --- a/pkgs/top-level/default.nix +++ b/pkgs/top-level/default.nix @@ -49,6 +49,15 @@ let # Rename the function arguments in let lib = import ../../lib; + throwIfNot = b: msg: if b then x: x else throw msg; + + checked = + throwIfNot (lib.isList overlays) "The overlays argument to nixpkgs must be a list." + lib.foldr (x: throwIfNot (lib.isFunction x) "All overlays passed to nixpkgs must be functions.") (r: r) overlays + throwIfNot (lib.isList crossOverlays) "The crossOverlays argument to nixpkgs must be a list." + lib.foldr (x: throwIfNot (lib.isFunction x) "All crossOverlays passed to nixpkgs must be functions.") (r: r) crossOverlays + ; + localSystem = lib.systems.elaborate args.localSystem; # Condition preserves sharing which in turn affects equality. @@ -121,4 +130,4 @@ in let pkgs = boot stages; -in pkgs +in checked pkgs |