~drizzle-trunk/drizzle/development

/* Copyright (C) 2000 MySQL AB

   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; version 2 of the License.

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

/*

**  print_default.c:

**  Print all parameters in a default file that will be given to some program.

**

**  Written by Monty

*/

#include <my_global.h>

#include <my_sys.h>

#include <m_string.h>

#include <my_getopt.h>

const char *config_file="my";			/* Default config file */

uint verbose= 0, opt_defaults_file_used= 0;

const char *default_dbug_option="d:t:o,/tmp/my_print_defaults.trace";

static struct my_option my_long_options[] =

{

  /*

    NB: --config-file is troublesome, because get_defaults_options() doesn't

    know about it, but we pretend --config-file is like --defaults-file.  In

    fact they behave differently: see the comments at the top of

    mysys/default.c for how --defaults-file should behave.

    This --config-file option behaves as:

    - If it has a directory name part (absolute or relative), then only this

      file is read; no error is given if the file doesn't exist

    - If the file has no directory name part, the standard locations are

      searched for a file of this name (and standard filename extensions are

      added if the file has no extension)

  */

  {"config-file", 'c', "Deprecated, please use --defaults-file instead.  Name of config file to read; if no extension is given, default extension (e.g., .ini or .cnf) will be added",

   (uchar**) &config_file, (uchar**) &config_file, 0, GET_STR, REQUIRED_ARG,

   0, 0, 0, 0, 0, 0},

#ifdef DBUG_OFF

  {"debug", '#', "This is a non-debug version. Catch this and exit",

   0,0, 0, GET_DISABLED, OPT_ARG, 0, 0, 0, 0, 0, 0},

#else

  {"debug", '#', "Output debug log", (uchar**) &default_dbug_option,

   (uchar**) &default_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},

#endif

  {"defaults-file", 'c', "Like --config-file, except: if first option, then read this file only, do not read global or per-user config files; should be the first option",

   (uchar**) &config_file, (uchar**) &config_file, 0, GET_STR, REQUIRED_ARG,

   0, 0, 0, 0, 0, 0},

  {"defaults-extra-file", 'e',

   "Read this file after the global config file and before the config file in the users home directory; should be the first option",

   (uchar**) &my_defaults_extra_file, (uchar**) &my_defaults_extra_file, 0,

   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},

  {"defaults-group-suffix", 'g',

   "In addition to the given groups, read also groups with this suffix",

   (uchar**) &my_defaults_group_suffix, (uchar**) &my_defaults_group_suffix,

   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},

  {"extra-file", 'e',

   "Deprecated. Synonym for --defaults-extra-file.",

   (uchar**) &my_defaults_extra_file,

   (uchar**) &my_defaults_extra_file, 0, GET_STR,

   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},

  {"no-defaults", 'n', "Return an empty string (useful for scripts).",

   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},

  {"help", '?', "Display this help message and exit.",

   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},

  {"verbose", 'v', "Increase the output level",

   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},

  {"version", 'V', "Output version information and exit.",

   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},

  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}

};

#include <help_start.h>

static void usage(my_bool version)

{

  printf("%s  Ver 1.6 for %s at %s\n",my_progname,SYSTEM_TYPE,

	 MACHINE_TYPE);

  if (version)

    return;

  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");

  puts("Prints all arguments that is give to some program using the default files");

  printf("Usage: %s [OPTIONS] groups\n", my_progname);

  my_print_help(my_long_options);

  my_print_default_files(config_file);

  my_print_variables(my_long_options);

  printf("\nExample usage:\n%s --defaults-file=example.cnf client mysql\n", my_progname);

}

#include <help_end.h>

static my_bool

get_one_option(int optid, const struct my_option *opt __attribute__((unused)),

	       char *argument __attribute__((unused)))

{

  switch (optid) {

    case 'c':

      opt_defaults_file_used= 1;

      break;

    case 'n':

    exit(0);

    case 'I':

    case '?':

    usage(0);

    exit(0);

    case 'v':

      verbose++;

      break;

    case 'V':

    usage(1);

    exit(0);

    case '#':

      DBUG_PUSH(argument ? argument : default_dbug_option);

      break;

  }

  return 0;

}

static int get_options(int *argc,char ***argv)

{

  int ho_error;

  if ((ho_error=handle_options(argc, argv, my_long_options, get_one_option)))

    exit(ho_error);

  if (*argc < 1)

  {

    usage(0);

    return 1;

  }

  return 0;

}

int main(int argc, char **argv)

{

  int count, error, args_used;

  char **load_default_groups, *tmp_arguments[6];

  char **argument, **arguments, **org_argv;

  char *defaults, *extra_defaults, *group_suffix;

  MY_INIT(argv[0]);

  org_argv= argv;

  args_used= get_defaults_options(argc, argv, &defaults, &extra_defaults,

                                  &group_suffix);

  /* Copy defaults-xxx arguments & program name */

  count=args_used+1;

  arguments= tmp_arguments;

  memcpy((char*) arguments, (char*) org_argv, count * sizeof(*org_argv));

  arguments[count]= 0;

  /* Check out the args */

  if (!(load_default_groups=(char**) my_malloc((argc+1)*sizeof(char*),

					       MYF(MY_WME))))

    exit(1);

  if (get_options(&argc,&argv))

    exit(1);

  memcpy((char*) load_default_groups, (char*) argv, (argc + 1) * sizeof(*argv));

  if ((error= load_defaults(config_file, (const char **) load_default_groups,

			   &count, &arguments)))

  {

    if (verbose && opt_defaults_file_used)

    {

      if (error == 1)

	fprintf(stderr, "WARNING: Defaults file '%s' not found!\n",

		config_file);

      /* This error is not available now. For the future */

      if (error == 2)

	fprintf(stderr, "WARNING: Defaults file '%s' is not a regular file!\n",

		config_file);

    }

    error= 2;

  }

  for (argument= arguments+1 ; *argument ; argument++)

    puts(*argument);

  my_free((char*) load_default_groups,MYF(0));

  free_defaults(arguments);

  exit(error);

}