cd nix-gui
nix develop
cd nixui
p=/nix/store/ip17r412b9by9nwb0ri0avrzhvv49ajc-source
export NIX_PATH=$p:nixpkgs=$p:nixos-config=$(readlink -f tests/sample/configuration.nix)
# workaround for https://github.com/nix-gui/nix-gui/issues/275
sed -i '/echo ${toString config.services.nix-serve.port}/d' tests/sample/configuration.nix
pytest -svv tests/test_api.py::test_get_option_tree
)
> raise NixEvalError(err_str)
E nixui.options.nix_eval.NixEvalError: NixEvalError("""
E error: attribute 'cycle' missing
E
E at /nix/store/ip17r412b9by9nwb0ri0avrzhvv49ajc-source/nixos/modules/tasks/filesystems.nix:259:119:
E
E 258| { assertion = ! (fileSystems' ? cycle);
E 259| message = "The ‘fileSystems’ option can't be topologically sorted: mountpoint dependency path ${ls " -> " fileSystems'.cycle} loops to ${ls ", " fileSystems'.loops}";
E | ^
E 260| }
https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/tasks/filesystems.nix#L277
###### implementation
config = {
assertions = let
ls = sep: concatMapStringsSep sep (x: x.mountPoint);
notAutoResizable = fs: fs.autoResize && !(hasPrefix "ext" fs.fsType || fs.fsType == "f2fs");
in [
{ assertion = ! (fileSystems' ? cycle);
message = "The ‘fileSystems’ option can't be topologically sorted: mountpoint dependency path ${ls " -> " fileSystems'.cycle} loops to ${ls ", " fileSystems'.loops}";
}
{ assertion = ! (any notAutoResizable fileSystems);
message = let
fs = head (filter notAutoResizable fileSystems);
in
"Mountpoint '${fs.mountPoint}': 'autoResize = true' is not supported for 'fsType = \"${fs.fsType}\"':${if fs.fsType == "auto" then " fsType has to be explicitly set and" else ""} only the ext filesystems and f2fs support it.";
}
];
https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/tasks/filesystems.nix#L277