/* test.c -- The test command..  */
/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2005  Free Software Foundation, Inc.
 *
 *  GRUB 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 GRUB; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <grub/normal.h>
#include <grub/dl.h>
#include <grub/arg.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/env.h>


static void
test_file_exists (const char *key, const char *var)
{
	char *p;

	grub_file_t file;

      file = grub_file_open (key);
      if (file)
	{
	  grub_printf (" %s", key);
	  grub_file_close (file);
	  grub_errno = GRUB_ERR_NONE;
	  return 0;
	}
      else
	{
	  grub_error (GRUB_ERR_FILE_NOT_FOUND, "File does not exists.");
	}
}


static const struct grub_arg_option options[] =
  {
    {"file", 'e', 0, "test if a file exists", 0, 0},
    {0, 0, 0, 0, 0, 0}
  };

static grub_err_t
grub_cmd_test (struct grub_arg_list *state, int argc, char **args)
{
  const char *var = 0;
  
  if (argc == 0)
    return grub_error (GRUB_ERR_INVALID_COMMAND, "no argument specified");

  if (state[0].set)
    test_file_exists (args[0], var);

  return grub_errno;
}


GRUB_MOD_INIT(test)
{
  (void)mod;			/* To stop warning. */
  grub_register_command ("[", grub_cmd_test, GRUB_COMMAND_FLAG_CMDLINE,
			 "[ EXPRESSION ]", "Evaluate an expression", 0);
  grub_register_command ("test", grub_cmd_test, GRUB_COMMAND_FLAG_CMDLINE,
			 "test EXPRESSION", "Evaluate an expression", 0);
}

GRUB_MOD_FINI(test)
{
  grub_unregister_command ("[");
  grub_unregister_command ("test");
}