nixpkgs/nixos/modules/config/unix-odbc-drivers.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

35 lines
920 B
Nix

{ config, lib, pkgs, ... }:
with lib;
# unixODBC drivers (this solution is not perfect.. Because the user has to
# ask the admin to add a driver.. but it's simple and works
{
###### interface
options = {
environment.unixODBCDrivers = mkOption {
default = [];
example = literalExample "map (x : x.ini) (with pkgs.unixODBCDrivers; [ mysql psql psqlng ] )";
description = ''
Specifies Unix ODBC drivers to be registered in
<filename>/etc/odbcinst.ini</filename>. You may also want to
add <literal>pkgs.unixODBC</literal> to the system path to get
a command line client to connnect to ODBC databases.
'';
};
};
###### implementation
config = mkIf (config.environment.unixODBCDrivers != []) {
environment.etc."odbcinst.ini".text =
let inis = config.environment.unixODBCDrivers;
in pkgs.lib.concatStringsSep "\n" inis;
};
}