forked from M-Labs/nix-scripts
93 lines
2.3 KiB
Nix
93 lines
2.3 KiB
Nix
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{ config, pkgs, lib, ... }:
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with lib;
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let
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homu = pkgs.callPackage ./pkg.nix {};
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toToml = key: value:
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let valueString =
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if builtins.isString value
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then "\"" + (builtins.replaceStrings ["\"" "\\"] ["\\\"" "\\\\"] value) + "\""
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else toString value;
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in "${key} = ${valueString}\n";
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defaultConfig = {
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db = {
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file = "/var/db/homu/main.db";
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};
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};
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cfg = config.services.homu;
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homuConfig = defaultConfig // cfg.config;
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configFilter = f:
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filterAttrs (key: value: f value) homuConfig;
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topLevelConfig =
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configFilter (value: ! builtins.isAttrs value);
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configSections =
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configFilter (value: builtins.isAttrs value);
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configFile = builtins.toFile "config.toml" (
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builtins.concatStringsSep "" (
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(attrsets.mapAttrsToList toToml topLevelConfig) ++
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(builtins.concatLists (attrsets.mapAttrsToList
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(sectionName: sectionConfig:
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[ "[${sectionName}]\n" ] ++
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(attrsets.mapAttrsToList toToml sectionConfig)
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) configSections)
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))
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);
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dbFile = homuConfig.db.file;
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in
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{
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options.services.homu = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Enable the bot";
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};
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user = mkOption {
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type = types.str;
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default = "nobody";
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};
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group = mkOption {
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type = types.str;
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default = "nogroup";
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};
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config = mkOption {
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description = "Structured data for config.toml";
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type = with types; attrsOf unspecified;
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};
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};
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config = mkIf cfg.enable {
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systemd.services.homu-dbdir = {
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description = "Homu bot database directory";
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serviceConfig = {
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Type = "oneshot";
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ExecStart = [
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"${pkgs.coreutils}/bin/mkdir -p ${dirOf dbFile}"
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"${pkgs.coreutils}/bin/chown -R ${cfg.user}:${cfg.group} ${dirOf dbFile}"
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];
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};
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};
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systemd.services.homu = {
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description = "Homu bot";
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wantedBy = [ "multi-user.target" ];
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requires = [ "homu-dbdir.service" ];
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after = [ "network.target" ];
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serviceConfig = {
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Type = "simple";
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ExecStart = "${homu}/bin/homu -c ${configFile}";
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Restart = "always";
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RestartSec = "5sec";
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User = cfg.user;
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Group = cfg.group;
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};
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};
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};
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}
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