Function th_rmtree

tests/test_helpers.h:113–154

Remove a file or directory tree recursively. Cross-platform rm -rf. */

/* Remove a file or directory tree recursively. Cross-platform rm -rf. */
static inline int th_rmtree(const char *path) {
    /* The platform wrappers preserve UTF-8 and add the extended-length prefix
     * on Windows; narrow CRT stat() silently treats paths beyond MAX_PATH as
     * absent and leaves their parents nonempty. */
    if (!cbm_file_exists(path)) {
        return 0; /* doesn't exist — success */
    }

    if (!cbm_is_dir(path)) {
        return th_unlink_force(path);
    }

    /* Directory — recurse into children */
    cbm_dir_t *d = cbm_opendir(path);
    if (!d) {
        return -1;
    }

    cbm_dirent_t *entry;
    int rc = 0;
    while ((entry = cbm_readdir(d)) != NULL) {
        if (strcmp(entry->name, ".") == 0 || strcmp(entry->name, "..") == 0) {
            continue;
        }
        char child[1024];
        snprintf(child, sizeof(child), "%s/%s", path, entry->name);
        if (entry->is_dir) {
            if (th_rmtree(child) != 0) {
                rc = -1;
            }
        } else {
            if (th_unlink_force(child) != 0) {
                rc = -1;
            }
        }
    }
    cbm_closedir(d);
    if (cbm_rmdir(path) != 0) {
        rc = -1;
    }
    return rc;
}

/* ── Temp directory creation ──────────────────────────────────── */