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/* wordsplit - a word splitter
   Copyright (C) 2009, 2010, 2011, 2017, 2019 Sergey Poznyakoff

   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 3 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, see <http://www.gnu.org/licenses/>. */

#include <config.h>
#include "wydawca.h"

char *progname;

void
usage (int code)
{
  FILE *fp = code ? stderr : stdout;

  fprintf (fp, "usage: %s [-no] [-simple] [-existing] [-numbered] [-suffix=S] FILE\n",
	   progname);
  exit (code);
}

int
main (int argc, char **argv)
{
  enum backup_type type = numbered_backups;
  char *file = NULL;
  char *backup;
  
  progname = argv[0];
  while (--argc)
    {
      char *arg = *++argv;
      if (strcmp (arg, "-no") == 0)
	type = no_backups;
      else if (strcmp (arg, "-simple") == 0)
	type = simple_backups;
      else if (strcmp (arg, "-existing") == 0)
	type = numbered_existing_backups;
      else if (strcmp (arg, "-numbered") == 0)
	type = numbered_backups;
      else if (strncmp (arg, "-suffix=", 8) == 0)
	simple_backup_suffix = arg + 8;
      else if (arg[0] == '-')
	usage (2);
      else
	{
	  if (argc != 1)
	    usage (2);
	  file = arg;
	}
    }

  if (!file)
    usage (2);
  backup = find_backup_file_name (file, type);
  if (!backup)
    {
      if (errno)
	{
	  perror (file);
	  exit (1);
	}
      printf ("no backup\n");
    }
  else
    printf ("%s\n", backup);
  free (backup);
  exit (0);
}

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