From 1c950d59bb56349f7402a9d57eab90e350dc21e4 Mon Sep 17 00:00:00 2001
From: Felix Weiglhofer <weiglhofer@fias.uni-frankfurt.de>
Date: Wed, 7 Jun 2023 14:06:36 +0000
Subject: [PATCH] algo::Options: Print help message on unknown option.
---
algo/base/Options.cxx | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/algo/base/Options.cxx b/algo/base/Options.cxx
index 4ac19dc780..36e2c1eda8 100644
--- a/algo/base/Options.cxx
+++ b/algo/base/Options.cxx
@@ -73,11 +73,19 @@ Options::Options(int argc, char** argv)
po::variables_map vm;
po::command_line_parser parser {argc, argv};
parser.options(cmdline_options);
- po::store(parser.run(), vm);
+ try {
+ auto result = parser.run();
+ po::store(result, vm);
+ }
+ catch (const boost::wrapexcept<po::unknown_option>& e) {
+ std::cerr << "Error: " << e.what() << std::endl;
+ std::cerr << cmdline_options << std::endl;
+ std::exit(EXIT_FAILURE);
+ }
if (vm.count("help")) {
std::cerr << cmdline_options << std::endl;
- std::exit(0);
+ std::exit(EXIT_SUCCESS);
}
try {
@@ -86,6 +94,6 @@ Options::Options(int argc, char** argv)
catch (const po::required_option& e) {
std::cerr << "Error: " << e.what() << std::endl;
std::cerr << cmdline_options << std::endl;
- std::exit(1);
+ std::exit(EXIT_FAILURE);
}
}
--
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