109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
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#include "../command.h"
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static struct {
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bool prompt;
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bool dont_overwrite;
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bool refuse_if_dir;
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bool verbose;
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} flags;
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static void help(void) {
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printf("Usage: mv [-inT] SOURCE... DIRECTORY\n\n");
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printf("Rename SOURCE to DEST, or move SOURCEs to DIRECTORY\n");
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printf("\t-i\tInteractive, prompt before overwriting\n");
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printf("\t-n\tDon't overwrite an existing file\n");
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printf("\t-T\tRefuse to move if DEST is a directory\n");
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printf("\t-v\tVerbose\n");
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}
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static int short_arg(char c, char* next) {
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UNUSED(next);
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switch (c) {
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case 't':
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flags.prompt = true;
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break;
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case 'n':
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flags.dont_overwrite = true;
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break;
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case 'T':
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flags.refuse_if_dir = true;
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break;
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case 'v':
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flags.verbose = true;
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break;
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default:
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return ARG_UNUSED;
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}
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return ARG_USED;
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}
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static void mv_dir(bool exists) {
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if (exists && flags.dont_overwrite) {
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if (flags.verbose) output("skipping '%s'; overwrise is false", get_path_buffer_2());
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return;
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}
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if (exists && flags.prompt) {
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fprintf(stderr, "overwrite '%s'? ", get_path_buffer_2());
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fflush(stderr);
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char c = getchar();
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if (c != 'y' && c != 'Y') {
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if (flags.verbose) output("skipping...");
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return;
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}
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}
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if (rename(get_path_buffer(), get_path_buffer_2()) < 0) {
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error_s("cannot move '%s': %s", get_path_buffer(), strerror(errno));
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} else if (flags.verbose) {
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output("moved '%s'", get_path_buffer());
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}
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}
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COMMAND(mv) {
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flags.refuse_if_dir = false;
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flags.dont_overwrite = false;
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flags.prompt = false;
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flags.verbose = false;
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int start = parse_args(argc, argv, help, short_arg, NULL);
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if (argc - start < 2) {
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global_help(help);
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}
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push_path_buffer_2(argv[argc-1]);
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bool dest = true;
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struct stat s;
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if (lstat(get_path_buffer_2(), &s) < 0 && argc - start > 2) {
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dest = false;
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error("cannot stat '%s': %s", get_path_buffer_2(), strerror(errno));
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}
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if (dest && flags.refuse_if_dir) {
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if (S_ISDIR(s.st_mode)) {
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error("target '%s': Is A Directory", get_path_buffer_2());
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}
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}
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if (argc - start == 2) {
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push_path_buffer(argv[argc-2]);
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mv_dir(dest);
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return EXIT_SUCCESS;
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}
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if (dest && !S_ISDIR(s.st_mode)) {
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error("target '%s': Is Not A Directory", get_path_buffer_2());
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}
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for (int i = start; i < argc - 1; i++) {
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int save = push_path_buffer(argv[i]);
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bool exists = lstat(get_path_buffer(), &s) >= 0;
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mv_dir(exists);
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pop_path_buffer(save);
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}
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return EXIT_SUCCESS;
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}
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