Command line - improved error handling

This commit is contained in:
bubnikv 2019-03-17 14:35:54 +01:00
parent f5b30237ea
commit 2bb4b4e691
2 changed files with 11 additions and 9 deletions

View File

@ -713,11 +713,8 @@ bool DynamicConfig::read_cli(int argc, char** argv, t_config_option_keys* extra,
// Look for the cli -> option mapping.
const auto it = opts.find(token);
if (it == opts.end()) {
printf("Warning: unknown option --%s\n", token.c_str());
// instead of continuing, return false to caller
// to stop execution and print usage
boost::nowide::cerr << "Unknown option --" << token.c_str() << std::endl;
return false;
//continue;
}
const t_config_option_key opt_key = it->second;
const ConfigOptionDef &optdef = this->def()->options.at(opt_key);
@ -725,8 +722,8 @@ bool DynamicConfig::read_cli(int argc, char** argv, t_config_option_keys* extra,
// look for it in the next token.
if (optdef.type != coBool && optdef.type != coBools && value.empty()) {
if (i == (argc-1)) {
printf("No value supplied for --%s\n", token.c_str());
continue;
boost::nowide::cerr << "No value supplied for --" << token.c_str() << std::endl;
return false;
}
value = argv[++ i];
}
@ -759,7 +756,10 @@ bool DynamicConfig::read_cli(int argc, char** argv, t_config_option_keys* extra,
static_cast<ConfigOptionString*>(opt_base)->value = value;
} else {
// Any scalar value of a type different from Bool and String.
this->set_deserialize(opt_key, value, false);
if (! this->set_deserialize(opt_key, value, false)) {
boost::nowide::cerr << "Invalid value supplied for --" << token.c_str() << std::endl;
return false;
}
}
}
return true;

View File

@ -523,6 +523,8 @@ bool CLI::setup(int argc, char **argv)
// If any option is unsupported, print usage and abort immediately.
t_config_option_keys opt_order;
if (! m_config.read_cli(argc, argv, &m_input_files, &opt_order)) {
// Separate error message reported by the CLI parser from the help.
boost::nowide::cerr << std::endl;
this->print_help();
return false;
}
@ -615,7 +617,7 @@ std::string CLI::output_filepath(const Model &model, IO::ExportFormat format) co
};
auto proposed_path = boost::filesystem::path(model.propose_export_file_name_and_path(ext));
// use --output when available
std::string cmdline_param = m_config.opt_string("output", false);
std::string cmdline_param = m_config.opt_string("output");
if (! cmdline_param.empty()) {
// if we were supplied a directory, use it and append our automatically generated filename
boost::filesystem::path cmdline_path(cmdline_param);