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cpp-utilities
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Suppress "Available top-level options:" if none available

This commit is contained in:
Martchus 2019-09-14 20:52:35 +02:00
parent 5c098df8d7
commit 9cc6be4d4c
1 changed files with 13 additions and 7 deletions
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20
application/argumentparser.cpp
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@ -814,10 +814,14 @@ void ArgumentParser::printHelp(ostream &os) const
} }
if (!m_mainArgs.empty()) { if (!m_mainArgs.empty()) {
bool hasOperations = false; bool hasOperations = false, hasTopLevelOptions = false;
for (const Argument *const arg : m_mainArgs) { for (const Argument *const arg : m_mainArgs) {
if (arg->denotesOperation()) { if (arg->denotesOperation()) {
hasOperations = true; hasOperations = true;
} else if (strcmp(arg->name(), "help")) {
hasTopLevelOptions = true;
}
if (hasOperations && hasTopLevelOptions) {
break; break;
} }
} }
@ -833,13 +837,15 @@ void ArgumentParser::printHelp(ostream &os) const
os << '\n'; os << '\n';
arg->printInfo(os); arg->printInfo(os);
} }
os << "\nAvailable top-level options:"; if (hasTopLevelOptions) {
for (const Argument *const arg : m_mainArgs) { os << "\nAvailable top-level options:";
if (arg->denotesOperation() || arg->isDeprecated() || !strcmp(arg->name(), "help")) { for (const Argument *const arg : m_mainArgs) {
continue; if (arg->denotesOperation() || arg->isDeprecated() || !strcmp(arg->name(), "help")) {
continue;
}
os << '\n';
arg->printInfo(os);
} }
os << '\n';
arg->printInfo(os);
} }
} else { } else {
// just show all args if no operations are available // just show all args if no operations are available