132 lines
2.3 KiB
C++
132 lines
2.3 KiB
C++
#include <BAN/String.h>
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#include <dirent.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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bool delete_recursive(const char* path)
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{
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struct stat st;
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if (stat(path, &st) == -1)
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{
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perror(path);
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return false;
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}
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bool ret = true;
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if (S_ISDIR(st.st_mode))
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{
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DIR* dir = opendir(path);
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while (struct dirent* dirent = readdir(dir))
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{
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if (strcmp(dirent->d_name, ".") == 0 || strcmp(dirent->d_name, "..") == 0)
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continue;
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BAN::String dirent_path;
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MUST(dirent_path.append(path));
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MUST(dirent_path.push_back('/'));
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MUST(dirent_path.append(dirent->d_name));
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if (dirent->d_type == DT_DIR)
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{
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if (!delete_recursive(dirent_path.data()))
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ret = false;
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}
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else
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{
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if (unlink(dirent_path.data()) == -1)
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{
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perror(dirent_path.data());
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ret = false;
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}
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}
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}
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closedir(dir);
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}
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if (remove(path) == -1)
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{
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perror(path);
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return false;
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}
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return ret;
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}
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void usage(const char* argv0, int ret)
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{
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FILE* out = (ret == 0) ? stdout : stderr;
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fprintf(out, "usage: %s [OPTIONS]... FILE...\n", argv0);
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fprintf(out, " remove each FILE\n");
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fprintf(out, "OPTIONS:\n");
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fprintf(out, " -r remove directories and their contents recursively\n");
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fprintf(out, " -h, --help show this message and exit\n");
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exit(ret);
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}
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int main(int argc, char** argv)
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{
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bool recursive = false;
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int i = 1;
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for (; i < argc; i++)
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{
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if (argv[i][0] != '-')
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break;
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if (strcmp(argv[i], "-r") == 0)
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recursive = true;
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else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0)
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usage(argv[0], 0);
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else
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{
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fprintf(stderr, "unrecognized argument %s. use --help for more information\n", argv[i]);
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return 1;
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}
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}
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if (i >= argc)
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{
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fprintf(stderr, "missing operand. use --help for more information\n");
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return 1;
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}
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int ret = 0;
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for (; i < argc; i++)
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{
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if (recursive)
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{
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if (!delete_recursive(argv[i]))
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ret = 1;
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}
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else
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{
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struct stat st;
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if (stat(argv[i], &st) == -1)
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{
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perror(argv[i]);
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ret = 1;
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continue;
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}
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if (S_ISDIR(st.st_mode))
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{
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fprintf(stderr, "%s: %s\n", argv[i], strerror(EISDIR));
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ret = 1;
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continue;
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}
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if (unlink(argv[i]) == -1)
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{
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perror(argv[i]);
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ret = 1;
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}
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}
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}
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return ret;
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}
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