79 lines
1.8 KiB
C++
Executable File
79 lines
1.8 KiB
C++
Executable File
// Print date and time for i3 status bar.
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/* i3blocks config:
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* [time]
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* command=statustime
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* interval=persist
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* markup=pango
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*/
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#include <fmt/chrono.h>
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#include <fmt/core.h>
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#include <chrono>
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#include <csignal>
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#include <exception>
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#include <iostream>
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#include <locale>
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#include <thread>
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void signal_handler(int signum)
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{
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switch (signum)
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{
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case SIGTERM:
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case SIGINT:
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{
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std::cout << R"(<span color="red">Time script terminated.</span>)"
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<< std::endl;
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std::exit(signum); // NOLINT(concurrency-mt-unsafe)
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break;
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}
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default:
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{
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break;
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}
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}
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}
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int main()
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{
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using fmt::format;
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using std::cout;
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using std::endl;
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using clock = std::chrono::system_clock;
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using std::chrono::minutes;
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using namespace std::chrono_literals;
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// Set explicitly, because LC_TIME is en_DK.UTF-8.
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std::locale::global(std::locale("de_DE.UTF-8"));
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std::signal(SIGINT, signal_handler);
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std::signal(SIGTERM, signal_handler);
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try
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{
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while (true)
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{
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const auto now{clock::now()};
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cout << format(R"(<b><span color="orange">{0:%A}</span></b>, )"
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R"({0:%Y-%m-%d} )"
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R"(<span color="lightcyan">{0:%H:%M}</span>)",
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now)
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<< endl; // NOTE: Don't forget that we need to flush! 😊
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const auto next_minute{std::chrono::floor<minutes>(now + 1min)};
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std::this_thread::sleep_until(next_minute);
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}
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}
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catch (const std::exception &e)
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{
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cout << R"(<span color="red">Time script crashed.</span>)" << endl;
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std::cerr << e.what() << '\n';
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return 1;
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}
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}
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// Local Variables:
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// eval: (rainbow-mode 1)
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// End:
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