80 lines
2.1 KiB
Nix
80 lines
2.1 KiB
Nix
{ lib
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, config
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, ...
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}:
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{
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imports = [
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./etc.nix
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./systemd.nix
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];
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options = {
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assertions = lib.mkOption {
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type = lib.types.listOf lib.types.unspecified;
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internal = true;
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default = [ ];
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example = [{ assertion = false; message = "you can't enable this for that reason"; }];
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description = lib.mdDoc ''
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This option allows modules to express conditions that must
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hold for the evaluation of the system configuration to
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succeed, along with associated error messages for the user.
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'';
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};
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warnings = lib.mkOption {
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internal = true;
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default = [ ];
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type = lib.types.listOf lib.types.str;
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example = [ "The `foo' service is deprecated and will go away soon!" ];
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description = lib.mdDoc ''
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This option allows modules to show warnings to users during
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the evaluation of the system configuration.
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'';
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};
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system-manager = {
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allowAnyDistro = lib.mkEnableOption "the usage of system-manager on untested distributions";
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preActivationAssertions = lib.mkOption {
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type = with lib.types; attrsOf (submodule ({ name, ... }: {
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options = {
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enable = lib.mkEnableOption "the assertion";
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name = lib.mkOption {
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type = lib.types.str;
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default = name;
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};
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script = lib.mkOption {
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type = lib.types.str;
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};
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};
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}));
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default = { };
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};
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};
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};
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config = {
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system-manager.preActivationAssertions = {
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osVersion =
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let
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supportedIds = [ "nixos" "ubuntu" ];
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in
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{
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enable = !config.system-manager.allowAnyDistro;
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script = ''
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source /etc/os-release
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${lib.concatStringsSep "\n" (lib.flip map supportedIds (supportedId: ''
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if [ $ID = "${supportedId}" ]; then
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exit 0
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fi
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''))}
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echo "This OS is not currently supported."
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echo "Supported OSs are: ${lib.concatStringsSep ", " supportedIds}"
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exit 1
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'';
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};
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};
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};
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}
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