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Add logging of parsed command line options

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The recognized command line options are now being printed when Scylla is run,
together with the whole command used.
Fixes #4203.
This commit is contained in:
Kamil Braun
2019-07-01 16:55:38 +02:00
parent f155a2d334
commit 2f0f53ac72
1 changed files with 32 additions and 2 deletions
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34
main.cc
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@@ -384,6 +384,34 @@ static std::optional<std::vector<sstring>> parse_hinted_handoff_enabled(sstring
return dcs; return dcs;
} }
// Formats parsed program options into a string as follows:
// "[key1: value1_1 value1_2 ..., key2: value2_1 value 2_2 ..., (positional) value3, ...]"
std::string format_parsed_options(const std::vector<bpo::option>& opts) {
return fmt::format("[{}]",
boost::algorithm::join(opts | boost::adaptors::transformed([] (const bpo::option& opt) {
if (opt.value.empty()) {
return opt.string_key;
}
return (opt.string_key.empty() ? "(positional) " : fmt::format("{}: ", opt.string_key)) +
boost::algorithm::join(opt.value, " ");
}), ", ")
);
}
void print_starting_message(int ac, char** av, const bpo::parsed_options& opts) {
fmt::print("Scylla version {} starting ...\n", scylla_version());
if (ac) {
fmt::print("command used: \"{}", av[0]);
for (int i = 1; i < ac; ++i) {
fmt::print(" {}", av[i]);
}
fmt::print("\"\n");
}
fmt::print("parsed command line options: {}\n", format_parsed_options(opts.options));
}
int main(int ac, char** av) { int main(int ac, char** av) {
int return_value = 0; int return_value = 0;
try { try {
@@ -420,12 +448,15 @@ int main(int ac, char** av) {
// If --version is requested, print it out and exit immediately to avoid // If --version is requested, print it out and exit immediately to avoid
// Seastar-specific warnings that may occur when running the app // Seastar-specific warnings that may occur when running the app
bpo::variables_map vm; bpo::variables_map vm;
bpo::store(bpo::command_line_parser(ac, av).options(app.get_options_description()).allow_unregistered().run(), vm); auto parsed_opts = bpo::command_line_parser(ac, av).options(app.get_options_description()).allow_unregistered().run();
bpo::store(parsed_opts, vm);
if (vm["version"].as<bool>()) { if (vm["version"].as<bool>()) {
fmt::print("{}\n", scylla_version()); fmt::print("{}\n", scylla_version());
return 0; return 0;
} }
print_starting_message(ac, av, parsed_opts);
distributed<database> db; distributed<database> db;
seastar::sharded<service::cache_hitrate_calculator> cf_cache_hitrate_calculator; seastar::sharded<service::cache_hitrate_calculator> cf_cache_hitrate_calculator;
debug::db = &db; debug::db = &db;
@@ -440,7 +471,6 @@ int main(int ac, char** av) {
return app.run(ac, av, [&] () -> future<int> { return app.run(ac, av, [&] () -> future<int> {
fmt::print("Scylla version {} starting ...\n", scylla_version());
auto&& opts = app.configuration(); auto&& opts = app.configuration();
namespace sm = seastar::metrics; namespace sm = seastar::metrics;