Merge: nixos/postgresql: Add finalPackage attribute (#364261)

    touch $out

  '';

  groupAccessAvailable = versionAtLeast postgresql.version "11.0";

  groupAccessAvailable = versionAtLeast cfg.finalPackage.version "11.0";

  extensionNames = map getName postgresql.installedExtensions;

  extensionInstalled = extension: elem extension extensionNames;

        example = "postgresql_15";

      };

      finalPackage = mkOption {

        type = types.package;

        readOnly = true;

        default = postgresql;

        defaultText = "with config.services.postgresql; package.withPackages extensions";

        description = ''

          The postgresql package that will effectively be used in the system.

          It consists of the base package with plugins applied to it.

        '';

      };

      checkConfig = mkOption {

        type = types.bool;

        default = true;

    users.groups.postgres.gid = config.ids.gids.postgres;

    environment.systemPackages = [ postgresql ];

    environment.systemPackages = [ cfg.finalPackage ];

    environment.pathsToLink = [

      "/share/postgresql"

      environment.PGDATA = cfg.dataDir;

      path = [ postgresql ];

      path = [ cfg.finalPackage ];

      preStart = ''

        if ! test -e ${cfg.dataDir}/PG_VERSION; then

          # receiving systemd's SIGINT.

          TimeoutSec = 120;

          ExecStart = "${postgresql}/bin/postgres";

          ExecStart = "${cfg.finalPackage}/bin/postgres";

          # Hardening

          CapabilityBoundingSet = [ "" ];

      unitConfig.RequiresMountsFor = "${cfg.dataDir}";

    };

  };

  meta.doc = ./postgresql.md;