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Diffstat (limited to 'src/rmdir.c')
| -rw-r--r-- | src/rmdir.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/rmdir.c b/src/rmdir.c new file mode 100644 index 0000000..39063b4 --- /dev/null +++ b/src/rmdir.c @@ -0,0 +1,226 @@ +/* rmdir -- remove directories + + Copyright (C) 90, 91, 1995-2002, 2004, 2005, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 "error.h" +#include "quotearg.h" + +/* The official name of this program (e.g., no `g' prefix). */ +#define PROGRAM_NAME "rmdir" + +#define AUTHORS "David MacKenzie" + +/* The name this program was run with. */ +char *program_name; + +/* If true, remove empty parent directories. */ +static bool remove_empty_parents; + +/* If true, don't treat failure to remove a nonempty directory + as an error. */ +static bool ignore_fail_on_non_empty; + +/* If true, output a diagnostic for every directory processed. */ +static bool verbose; + +/* For long options that have no equivalent short option, use a + non-character as a pseudo short option, starting with CHAR_MAX + 1. */ +enum +{ + IGNORE_FAIL_ON_NON_EMPTY_OPTION = CHAR_MAX + 1 +}; + +static struct option const longopts[] = +{ + /* Don't name this `--force' because it's not close enough in meaning + to e.g. rm's -f option. */ + {"ignore-fail-on-non-empty", no_argument, NULL, + IGNORE_FAIL_ON_NON_EMPTY_OPTION}, + + {"path", no_argument, NULL, 'p'}, /* Deprecated. */ + {"parents", no_argument, NULL, 'p'}, + {"verbose", no_argument, NULL, 'v'}, + {GETOPT_HELP_OPTION_DECL}, + {GETOPT_VERSION_OPTION_DECL}, + {NULL, 0, NULL, 0} +}; + +/* Return true if ERROR_NUMBER is one of the values associated + with a failed rmdir due to non-empty target directory. */ + +static bool +errno_rmdir_non_empty (int error_number) +{ + return (error_number == RMDIR_ERRNO_NOT_EMPTY); +} + +/* Remove any empty parent directories of DIR. + If DIR contains slash characters, at least one of them + (beginning with the rightmost) is replaced with a NUL byte. + Return true if successful. */ + +static bool +remove_parents (char *dir) +{ + char *slash; + bool ok = true; + + strip_trailing_slashes (dir); + while (1) + { + slash = strrchr (dir, '/'); + if (slash == NULL) + break; + /* Remove any characters after the slash, skipping any extra + slashes in a row. */ + while (slash > dir && *slash == '/') + --slash; + slash[1] = 0; + + /* Give a diagnostic for each attempted removal if --verbose. */ + if (verbose) + error (0, 0, _("removing directory, %s"), dir); + + ok = (rmdir (dir) == 0); + + if (!ok) + { + /* Stop quietly if --ignore-fail-on-non-empty. */ + if (ignore_fail_on_non_empty + && errno_rmdir_non_empty (errno)) + { + ok = true; + } + else + { + error (0, errno, "%s", quotearg_colon (dir)); + } + break; + } + } + return ok; +} + +void +usage (int status) +{ + if (status != EXIT_SUCCESS) + fprintf (stderr, _("Try `%s --help' for more information.\n"), + program_name); + else + { + printf (_("Usage: %s [OPTION]... DIRECTORY...\n"), program_name); + fputs (_("\ +Remove the DIRECTORY(ies), if they are empty.\n\ +\n\ + --ignore-fail-on-non-empty\n\ + ignore each failure that is solely because a directory\n\ + is non-empty\n\ +"), stdout); + fputs (_("\ + -p, --parents Remove DIRECTORY and its ancestors. E.g., `rmdir -p a/b/c' is\n\ + similar to `rmdir a/b/c a/b a'.\n\ + -v, --verbose output a diagnostic for every directory processed\n\ +"), stdout); + fputs (HELP_OPTION_DESCRIPTION, stdout); + fputs (VERSION_OPTION_DESCRIPTION, stdout); + printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT); + } + exit (status); +} + +int +main (int argc, char **argv) +{ + bool ok = true; + int optc; + + initialize_main (&argc, &argv); + program_name = argv[0]; + setlocale (LC_ALL, ""); + bindtextdomain (PACKAGE, LOCALEDIR); + textdomain (PACKAGE); + + atexit (close_stdout); + + remove_empty_parents = false; + + while ((optc = getopt_long (argc, argv, "pv", longopts, NULL)) != -1) + { + switch (optc) + { + case 'p': + remove_empty_parents = true; + break; + case IGNORE_FAIL_ON_NON_EMPTY_OPTION: + ignore_fail_on_non_empty = true; + break; + case 'v': + verbose = true; + break; + case_GETOPT_HELP_CHAR; + case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS); + default: + usage (EXIT_FAILURE); + } + } + + if (optind == argc) + { + error (0, 0, _("missing operand")); + usage (EXIT_FAILURE); + } + + for (; optind < argc; ++optind) + { + char *dir = argv[optind]; + + /* Give a diagnostic for each attempted removal if --verbose. */ + if (verbose) + error (0, 0, _("removing directory, %s"), dir); + + if (rmdir (dir) != 0) + { + if (ignore_fail_on_non_empty + && errno_rmdir_non_empty (errno)) + continue; + + error (0, errno, "%s", quotearg_colon (dir)); + ok = false; + } + else if (remove_empty_parents) + { + ok &= remove_parents (dir); + } + } + + exit (ok ? EXIT_SUCCESS : EXIT_FAILURE); +} |