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subparser: use full parser path instead of just parser name in usage() message

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This commit is contained in:
Even Rouault 2024-11-08 20:19:16 +01:00
parent b5cfa7ea46
commit 097bac1854
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GPG Key ID: 33EBBFC47B3DD87D
2 changed files with 27 additions and 1 deletions
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2
include/argparse/argparse.hpp
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@ -2067,7 +2067,7 @@ public:
std::stringstream stream; std::stringstream stream;
std::string curline("Usage: "); std::string curline("Usage: ");
curline += this->m_program_name; curline += this->m_parser_path;
const bool multiline_usage = const bool multiline_usage =
this->m_usage_max_line_width < (std::numeric_limits<std::size_t>::max)(); this->m_usage_max_line_width < (std::numeric_limits<std::size_t>::max)();
const size_t indent_size = curline.size(); const size_t indent_size = curline.size();

26
test/test_subparsers.cpp
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@ -280,3 +280,29 @@ TEST_CASE("Check set_suppress" * test_suite("subparsers")) {
REQUIRE(contains(program.help().str(), "command_2") == true); REQUIRE(contains(program.help().str(), "command_2") == true);
} }
} }
TEST_CASE("Help of subparsers" * test_suite("subparsers")) {
argparse::ArgumentParser program("test");
argparse::ArgumentParser command_1("add", "1.0", argparse::default_arguments::version);
std::stringstream buffer;
command_1.add_argument("--help")
.action([&](const auto &) { buffer << command_1; })
.default_value(false)
.implicit_value(true)
.nargs(0);
program.add_subparser(command_1);
REQUIRE(command_1.usage() == "Usage: test add [--version] [--help]");
REQUIRE(buffer.str().empty());
program.parse_args({"test", "add", "--help"});
REQUIRE(buffer.str() == "Usage: test add [--version] [--help]\n"
"\n"
"Optional arguments:\n"
" -v, --version prints version information and exits \n"
" --help \n");
}