128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2012 Jonas 'Sortie' Termansen.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* rmdir.c
|
|
* Remove an empty directory.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <errno.h>
|
|
#include <error.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
static void compact_arguments(int* argc, char*** argv)
|
|
{
|
|
for ( int i = 0; i < *argc; i++ )
|
|
{
|
|
while ( i < *argc && !(*argv)[i] )
|
|
{
|
|
for ( int n = i; n < *argc; n++ )
|
|
(*argv)[n] = (*argv)[n+1];
|
|
(*argc)--;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void help(FILE* fp, const char* argv0)
|
|
{
|
|
fprintf(fp, "Usage: %s [OPTION]... DIRECTORY...\n", argv0);
|
|
fprintf(fp, "Remove directories if they are empty.\n");
|
|
}
|
|
|
|
static void version(FILE* fp, const char* argv0)
|
|
{
|
|
fprintf(fp, "%s (Sortix) %s\n", argv0, VERSIONSTR);
|
|
}
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
const char* argv0 = argv[0];
|
|
bool ignore_non_empty = false;
|
|
bool parents = false;
|
|
bool verbose = false;
|
|
for ( int i = 1; i < argc; i++ )
|
|
{
|
|
const char* arg = argv[i];
|
|
if ( arg[0] != '-' || !arg[1] )
|
|
continue;
|
|
argv[i] = NULL;
|
|
if ( !strcmp(arg, "--") )
|
|
break;
|
|
if ( arg[1] != '-' )
|
|
{
|
|
char c;
|
|
while ( (c = *++arg) ) switch ( c )
|
|
{
|
|
case 'p': parents = true; break;
|
|
case 'v': verbose = true; break;
|
|
default:
|
|
fprintf(stderr, "%s: unknown option -- '%c'\n", argv0, c);
|
|
help(stderr, argv0);
|
|
exit(1);
|
|
}
|
|
}
|
|
else if ( !strcmp(arg, "--ignore-fail-on-non-empty") )
|
|
ignore_non_empty = true;
|
|
else if ( !strcmp(arg, "--parents") )
|
|
parents = true;
|
|
else if ( !strcmp(arg, "--verbose") )
|
|
verbose = true;
|
|
else if ( !strcmp(arg, "--help") )
|
|
help(stdout, argv0), exit(0);
|
|
else if ( !strcmp(arg, "--version") )
|
|
version(stdout, argv0), exit(0);
|
|
else
|
|
{
|
|
fprintf(stderr, "%s: unknown option: %s\n", argv0, arg);
|
|
help(stderr, argv0);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
compact_arguments(&argc, &argv);
|
|
|
|
if ( argc < 2 )
|
|
error(1, 0, "missing operand");
|
|
|
|
for ( int i = 1; i < argc; i++ )
|
|
{
|
|
const char* arg = argv[i];
|
|
// TODO: Support --parents option.
|
|
(void) parents;
|
|
int ret = rmdir(arg);
|
|
if ( ret < 0 )
|
|
{
|
|
if ( ignore_non_empty && errno == ENOTEMPTY )
|
|
{
|
|
if ( verbose )
|
|
fprintf(stderr, "%s: skipping non-empty directory `%s'\n", argv0, arg);
|
|
continue;
|
|
}
|
|
error(1, errno, "cannot remove directory `%s'", arg);
|
|
}
|
|
|
|
if ( verbose )
|
|
fprintf(stderr, "%s: removed directory `%s'\n", argv0, arg);
|
|
}
|
|
|
|
return 0;
|
|
}
|