Method is_model_downloaded

src/pull/model_downloader.cpp:23–44

\brief Check if the model is downloaded \param model_tag the model tag \return true if the model is downloaded, false otherwise

/// \param model_tag the model tag
/// \return true if the model is downloaded, false otherwise
bool ModelDownloader::is_model_downloaded(const std::string& model_tag, bool sub_process_mode, bool fast_check) {
    auto missing_files = get_missing_files(model_tag);
    bool is_config_file_missing = std::find(missing_files.begin(), missing_files.end(), "config.json") != missing_files.end();
    if (!is_config_file_missing) {
        if (!check_model_compatibility(model_tag, sub_process_mode)) {
            if (!sub_process_mode)
                header_print("FLM", "Model " + model_tag + " is not compatible with the current FLM version. ");
            // Fast path: skip the expensive HF metadata fetch + per-file hash
            // verification. Caller (e.g. `flm list`) only needs the boolean
            // status; cleanup can happen later on `pull` / `check`.
            if (fast_check) {
                return false;
            }
            // Instead of removing all files wholesale, verify each file against
            // HuggingFace metadata and remove only corrupted ones (same logic
            // as check_model). Files that pass verification can be reused.
            verify_and_clean_files(model_tag, sub_process_mode);
            return false;
        }
    }
    return missing_files.empty();
}

/// \brief Check if the model is compatible with the current FLM version
/// \param model_tag the model tag