commit 6cb0b6a4d63bab23bb5cd460561bf60b701db48b · pyrox.dev/nixpkgs

+63 -8
nixos/modules/services/games/minetest-server.nix
···

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       with lib;

     

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       let

     

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       +
         CONTAINS_NEWLINE_RE = ".*\n.*";

     

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         # The following values are reserved as complete option values:

     

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         # { - start of a group.

     

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         # """ - start of a multi-line string.

     

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         RESERVED_VALUE_RE = "[[:space:]]*(\"\"\"|\\{)[[:space:]]*";

     

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         NEEDS_MULTILINE_RE = "${CONTAINS_NEWLINE_RE}|${RESERVED_VALUE_RE}";

     

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         # There is no way to encode """ on its own line in a Minetest config.

     

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         UNESCAPABLE_RE = ".*\n\"\"\"\n.*";

     

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         toConfMultiline = name: value:

     

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           assert lib.assertMsg

     

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             ((builtins.match UNESCAPABLE_RE value) == null)

     

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             ''""" can't be on its own line in a minetest config.'';

     

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           "${name} = \"\"\"\n${value}\n\"\"\"\n";

     

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         toConf = values:

     

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           lib.concatStrings

     

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             (lib.mapAttrsToList

     

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               (name: value: {

     

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                 bool = "${name} = ${toString value}\n";

     

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                 int = "${name} = ${toString value}\n";

     

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                 null = "";

     

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                 set = "${name} = {\n${toConf value}}\n";

     

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                 string =

     

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                   if (builtins.match NEEDS_MULTILINE_RE value) != null

     

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                   then toConfMultiline name value

     

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                   else "${name} = ${value}\n";

     

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               }.${builtins.typeOf value})

     

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               values);

     

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       +
       

     

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         cfg   = config.services.minetest-server;

     

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         flag  = val: name: optionalString (val != null) "--${name} ${toString val} ";

     

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         flag  = val: name: lib.optionals (val != null) ["--${name}" "${toString val}"];

     

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         flags = [

     

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           (flag cfg.gameId "gameid")

     

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           (flag cfg.world "world")

     

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           (flag cfg.configPath "config")

     

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           (flag cfg.logPath "logfile")

     

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           (flag cfg.port "port")

     

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         ];

     

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           "--server"

     

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         ]

     

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           ++ (

     

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             if cfg.configPath != null

     

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             then ["--config" cfg.configPath]

     

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             else ["--config" (builtins.toFile "minetest.conf" (toConf cfg.config))])

     

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           ++ (flag cfg.gameId "gameid")

     

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           ++ (flag cfg.world "world")

     

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           ++ (flag cfg.logPath "logfile")

     

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           ++ (flag cfg.port "port")

     

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           ++ cfg.extraArgs;

     

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       in

     

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       {

     

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         options = {

     
···

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               '';

     

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             };

     

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             config = mkOption {

     

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               type = types.attrsOf types.anything;

     

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               default = {};

     

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               description = lib.mdDoc ''

     

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                 Settings to add to the minetest config file.

     

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                 This option is ignored if `configPath` is set.

     

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               '';

     

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             };

     

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             logPath = mkOption {

     

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               type        = types.nullOr types.path;

     

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               default     = null;

     
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                 If set to null, the default 30000 will be used.

     

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               '';

     

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             };

     

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       +
       

     

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             extraArgs = mkOption {

     

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               type = types.listOf types.str;

     

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               default = [];

     

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               description = lib.mdDoc ''

     

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                 Additional command line flags to pass to the minetest executable.

     

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               '';

     

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             };

     

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           };

     

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         };

     

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             script = ''

     

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               cd /var/lib/minetest

     

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               exec ${pkgs.minetest}/bin/minetest --server ${concatStrings flags}

     

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               exec ${pkgs.minetest}/bin/minetest ${lib.escapeShellArgs flags}

     

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             '';

     

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           };

     

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         };