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