132 lines
4 KiB
Nix
132 lines
4 KiB
Nix
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{
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config,
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lib,
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pkgs,
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utils,
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...
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}:
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let
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cfg = config.services.artalk;
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settingsFormat = pkgs.formats.json { };
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in
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{
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meta = {
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maintainers = with lib.maintainers; [ moraxyc ];
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};
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options = {
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services.artalk = {
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enable = lib.mkEnableOption "artalk, a comment system";
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configFile = lib.mkOption {
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type = lib.types.str;
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default = "/etc/artalk/config.yml";
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description = "Artalk config file path. If it is not exist, Artalk will generate one.";
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};
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allowModify = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = "allow Artalk store the settings to config file persistently";
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};
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workdir = lib.mkOption {
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type = lib.types.str;
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default = "/var/lib/artalk";
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description = "Artalk working directory";
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};
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user = lib.mkOption {
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type = lib.types.str;
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default = "artalk";
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description = "Artalk user name.";
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};
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group = lib.mkOption {
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type = lib.types.str;
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default = "artalk";
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description = "Artalk group name.";
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};
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package = lib.mkPackageOption pkgs "artalk" { };
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settings = lib.mkOption {
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type = lib.types.submodule {
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freeformType = settingsFormat.type;
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options = {
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host = lib.mkOption {
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type = lib.types.str;
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default = "0.0.0.0";
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description = ''
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Artalk server listen host
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'';
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};
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port = lib.mkOption {
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type = lib.types.port;
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default = 23366;
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description = ''
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Artalk server listen port
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'';
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};
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};
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};
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default = { };
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description = ''
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The artalk configuration.
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If you set allowModify to true, Artalk will be able to store the settings in the config file persistently. This section's content will update in the config file after the service restarts.
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Options containing secret data should be set to an attribute set
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containing the attribute `_secret` - a string pointing to a file
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containing the value the option should be set to.
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'';
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};
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};
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};
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config = lib.mkIf cfg.enable {
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users.users.artalk = lib.optionalAttrs (cfg.user == "artalk") {
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description = "artalk user";
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isSystemUser = true;
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group = cfg.group;
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};
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users.groups.artalk = lib.optionalAttrs (cfg.group == "artalk") { };
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environment.systemPackages = [ cfg.package ];
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systemd.services.artalk = {
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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preStart =
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''
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umask 0077
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${utils.genJqSecretsReplacementSnippet cfg.settings "/run/artalk/new"}
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''
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+ (
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if cfg.allowModify then
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''
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[ -e "${cfg.configFile}" ] || ${lib.getExe cfg.package} gen config "${cfg.configFile}"
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cat "${cfg.configFile}" | ${lib.getExe pkgs.yj} > "/run/artalk/old"
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${lib.getExe pkgs.jq} -s '.[0] * .[1]' "/run/artalk/old" "/run/artalk/new" > "/run/artalk/result"
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cat "/run/artalk/result" | ${lib.getExe pkgs.yj} -r > "${cfg.configFile}"
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rm /run/artalk/{old,new,result}
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''
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else
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''
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cat /run/artalk/new | ${lib.getExe pkgs.yj} -r > "${cfg.configFile}"
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rm /run/artalk/new
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''
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);
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serviceConfig = {
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User = cfg.user;
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Group = cfg.group;
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Type = "simple";
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ExecStart = "${lib.getExe cfg.package} server --config ${cfg.configFile} --workdir ${cfg.workdir} --host ${cfg.settings.host} --port ${builtins.toString cfg.settings.port}";
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Restart = "on-failure";
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RestartSec = "5s";
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ConfigurationDirectory = [ "artalk" ];
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StateDirectory = [ "artalk" ];
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RuntimeDirectory = [ "artalk" ];
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AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
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ProtectHome = "yes";
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};
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};
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};
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}
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