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utils-std

Collection of commonly available Unix tools git clone https://anongit.hacktivis.me/git/utils-std.git/

rmdir.c (2822B)

    

  1. // utils-std: Collection of commonly available Unix tools
  2. // SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
  3. // SPDX-License-Identifier: MPL-2.0
  5. #define _POSIX_C_SOURCE 200809L
  6. #include "../config.h" // HAS_*
  7. #include "../lib/getopt_nolong.h"
  9. #include <errno.h>
  10. #include <stdbool.h>
  11. #include <stdio.h>  // fprintf
  12. #include <stdlib.h> // abort
  13. #include <string.h> // strerror, strrchr
  14. #include <unistd.h> // getopt, rmdir
  15. #ifdef HAS_GETOPT_LONG
  16. #include <getopt.h>
  17. #endif
  19. const char *argv0 = "rmdir";
  21. static void
  22. usage(void)
  23. {
  24. #ifdef HAS_GETOPT_LONG
  25. 	fprintf(stderr, "Usage: rmdir [-pv] [--ignore-fail-on-non-empty] directory...\n");
  26. #else
  27. 	fprintf(stderr, "Usage: rmdir [-pv] directory...\n");
  28. #endif
  29. }
  31. int
  32. main(int argc, char *argv[])
  33. {
  34. 	bool parents = false, verbose = false, ign_enotempty = false;
  36. #ifdef HAS_GETOPT_LONG
  37. 	// clang-format off
  38. 	enum long_opt_vals {
  39. 		IGN_ENOTEMPTY = 1
  40. 	};
  41. 	static struct option opts[] = {
  42. 		{"ignore-fail-on-non-empty", no_argument, 0, IGN_ENOTEMPTY},
  43. 		{"parents", no_argument, 0, 'p'},
  44. 		{"verbose", no_argument, 0, 'v'},
  45. 		{0, 0, 0, 0},
  46. 	};
  47. 	// clang-format on
  49. 	// Need + as first character to get POSIX-style option parsing
  50. 	for(int c = -1; (c = getopt_long(argc, argv, "+:pv", opts, NULL)) != -1;)
  51. #else
  52. 	for(int c = -1; (c = getopt_nolong(argc, argv, ":pv")) != -1;)
  53. #endif
  54. 	{
  55. 		switch(c)
  56. 		{
  57. #ifdef HAS_GETOPT_LONG
  58. 		case IGN_ENOTEMPTY:
  59. 			ign_enotempty = true;
  60. 			break;
  61. #endif
  62. 		case 'p':
  63. 			parents = true;
  64. 			break;
  65. 		case 'v':
  66. 			verbose = true;
  67. 			break;
  68. 		case ':':
  69. 			fprintf(stderr, "rmdir: error: Missing operand for option: '-%c'\n", optopt);
  70. 			usage();
  71. 			return 1;
  72. 		case '?':
  73. 			if(!got_long_opt) fprintf(stderr, "rmdir: error: Unrecognised option: '-%c'\n", optopt);
  74. 			usage();
  75. 			return 1;
  76. 		default:
  77. 			abort();
  78. 		}
  79. 	}
  81. 	argc -= optind;
  82. 	argv += optind;
  84. 	if(argc == 0)
  85. 	{
  86. 		fprintf(stderr, "rmdir: error: missing operand\n");
  87. 		usage();
  88. 		return 1;
  89. 	}
  91. 	int err = 0;
  93. 	for(int i = 0; i < argc; i++)
  94. 	{
  95. 		errno = 0;
  97. 		char *path = argv[i];
  98. 		if(rmdir(path) < 0)
  99. 		{
  100. 			if(ign_enotempty && (errno == ENOTEMPTY || errno == EEXIST)) continue;
  102. 			fprintf(stderr, "rmdir: error: Failed removing '%s': %s\n", path, strerror(errno));
  103. 			err = 1;
  104. 			continue;
  105. 		}
  106. 		if(verbose) fprintf(stderr, "rmdir: Removed '%s'\n", path);
  108. 		if(!parents) continue;
  110. 		while(true)
  111. 		{
  112. 			char *sep = strrchr(path, '/');
  113. 			if(sep == NULL) break;
  115. 			*sep = 0;
  117. 			if(*path == 0) break;
  119. 			errno = 0;
  120. 			if(rmdir(path) < 0)
  121. 			{
  122. 				if(errno == ENOTDIR) break;
  123. 				if(ign_enotempty && (errno == ENOTEMPTY || errno == EEXIST)) break;
  125. 				fprintf(stderr, "rmdir: error: Failed removing '%s': %s\n", path, strerror(errno));
  126. 				err = 1;
  127. 				break;
  128. 			}
  129. 			if(verbose) fprintf(stderr, "rmdir: Removed '%s'\n", path);
  130. 		}
  131. 	}
  133. 	return err;
  134. }