# Global configuration for freetds environment. { config, lib, pkgs, ... }: with lib; let cfg = config.environment.freetds; in { ###### interface options = { environment.freetds = mkOption { type = types.attrsOf types.str; default = {}; example = literalExpression '' { MYDATABASE = ''' host = 10.0.2.100 port = 1433 tds version = 7.2 '''; } ''; description = lib.mdDoc '' Configure freetds database entries. Each attribute denotes a section within freetds.conf, and the value (a string) is the config content for that section. When at least one entry is configured the global environment variables FREETDSCONF, FREETDS and SYBASE will be configured to allow the programs that use freetds to find the library and config. ''; }; }; ###### implementation config = mkIf (length (attrNames cfg) > 0) { environment.variables.FREETDSCONF = "/etc/freetds.conf"; environment.variables.FREETDS = "/etc/freetds.conf"; environment.variables.SYBASE = "${pkgs.freetds}"; environment.etc."freetds.conf" = { text = (concatStrings (mapAttrsToList (name: value: '' [${name}] ${value} '' ) cfg)); }; }; }