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/* rmdir -- remove directories
Copyright (C) 1990, 1991, 1995 Free Software Foundation, Inc.
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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Options:
-p, --parent Remove any parent dirs that are explicitly mentioned
in an argument, if they become empty after the
argument file is removed.
David MacKenzie <djm@ai.mit.edu> */
#include <config.h>
#include <stdio.h>
#include <getopt.h>
#include <sys/types.h>
#include "system.h"
#include "version.h"
#include "error.h"
void strip_trailing_slashes ();
/* The name this program was run with. */
char *program_name;
/* If nonzero, remove empty parent directories. */
static int empty_paths;
/* If non-zero, display usage information and exit. */
static int show_help;
/* If non-zero, print the version on standard output and exit. */
static int show_version;
static struct option const longopts[] =
{
{"path", no_argument, &empty_paths, 1},
{"parents", no_argument, &empty_paths, 1},
{"help", no_argument, &show_help, 1},
{"version", no_argument, &show_version, 1},
{NULL, 0, NULL, 0}
};
/* Remove any empty parent directories of `path'.
Replaces '/' characters in `path' with NULs. */
static void
remove_parents (char *path)
{
char *slash;
do
{
slash = strrchr (path, '/');
if (slash == NULL)
break;
/* Remove any characters after the slash, skipping any extra
slashes in a row. */
while (slash > path && *slash == '/')
--slash;
slash[1] = 0;
}
while (rmdir (path) == 0);
}
static void
usage (int status)
{
if (status != 0)
fprintf (stderr, "Try `%s --help' for more information.\n",
program_name);
else
{
printf ("Usage: %s [OPTION]... DIRECTORY...\n", program_name);
printf ("\
Remove the DIRECTORY(ies), if they are empty.\n\
\n\
-p, --parents remove explicit parent directories if being emptied\n\
--help display this help and exit\n\
--version output version information and exit\n");
}
exit (status);
}
void
main (int argc, char **argv)
{
int errors = 0;
int optc;
program_name = argv[0];
empty_paths = 0;
while ((optc = getopt_long (argc, argv, "p", longopts, (int *) 0)) != EOF)
{
switch (optc)
{
case 0: /* Long option. */
break;
case 'p':
empty_paths = 1;
break;
default:
usage (1);
}
}
if (show_version)
{
printf ("rmdir - %s\n", version_string);
exit (0);
}
if (show_help)
usage (0);
if (optind == argc)
{
error (0, 0, "too few arguments");
usage (1);
}
for (; optind < argc; ++optind)
{
/* Stripping slashes is harmless for rmdir;
if the arg is not a directory, it will fail with ENOTDIR. */
strip_trailing_slashes (argv[optind]);
if (rmdir (argv[optind]) != 0)
{
error (0, errno, "%s", argv[optind]);
errors = 1;
}
else if (empty_paths)
remove_parents (argv[optind]);
}
exit (errors);
}
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