(* virt-sysprep
 * Copyright (C) 2012 FUJITSU LIMITED
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *)

open Sysprep_operation
open Sysprep_gettext.Gettext

module G = Guestfs

let package_manager_cache_perform g root =
  let packager = g#inspect_get_package_management root in
  let cache_dirs =
    match packager with
    | "zypper" ->
      Some (g#glob_expand "/var/cache/zypp*/*")
    | "yum" ->
      Some (g#glob_expand "/var/cache/yum/*")
    | "apt" ->
      Some (g#glob_expand "/var/cache/apt/archives/*")
    | _ -> None in
  match cache_dirs with
  | Some dirs -> Array.iter g#rm_rf dirs; []
  | _ -> []

let package_manager_cache_op = {
  name = "package-manager-cache";
  enabled_by_default = true;
  heading = s_"Remove package manager cache";
  pod_description = None;
  extra_args = [];
  perform_on_filesystems = Some package_manager_cache_perform;
  perform_on_devices = None;
}

let () = register_operation package_manager_cache_op