mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-04 05:20:30 +00:00
53 lines
2 KiB
C++
53 lines
2 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2022, Karol Kosek <krkk@serenityos.org>
|
|
* Copyright (c) 2024, Sam Atkins <atkinssj@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/NumberFormat.h>
|
|
#include <LibCore/ArgsParser.h>
|
|
#include <LibCore/DateTime.h>
|
|
#include <LibCore/File.h>
|
|
#include <LibCore/System.h>
|
|
#include <LibMain/Main.h>
|
|
|
|
ErrorOr<int> serenity_main(Main::Arguments arguments)
|
|
{
|
|
TRY(Core::System::pledge("stdio rpath"));
|
|
|
|
bool pretty_output = false;
|
|
bool output_since = false;
|
|
|
|
Core::ArgsParser args_parser;
|
|
args_parser.add_option(pretty_output, "Output only the uptime, in human-readable format", "pretty", 'p');
|
|
args_parser.add_option(output_since, "Show when the system is up since, in yyyy-mm-dd HH:MM:SS format", "since", 's');
|
|
args_parser.parse(arguments);
|
|
|
|
auto file = TRY(Core::File::open("/sys/kernel/uptime"sv, Core::File::OpenMode::Read));
|
|
|
|
TRY(Core::System::pledge("stdio"));
|
|
|
|
Array<u8, BUFSIZ> buffer;
|
|
auto read_buffer = TRY(file->read_some(buffer));
|
|
auto maybe_seconds = AK::StringUtils::convert_to_uint(StringView(read_buffer));
|
|
if (!maybe_seconds.has_value())
|
|
return Error::from_string_literal("Couldn't convert to number");
|
|
auto seconds = maybe_seconds.release_value();
|
|
|
|
if (output_since) {
|
|
auto since_timestamp = Core::DateTime::now().timestamp() - seconds;
|
|
auto since_time = TRY(Core::DateTime::from_timestamp(since_timestamp).to_string());
|
|
outln("{}", since_time);
|
|
} else if (pretty_output) {
|
|
outln("Up {}", human_readable_time(seconds));
|
|
} else {
|
|
auto current_time = TRY(Core::DateTime::now().to_string());
|
|
// FIXME: To match Linux and the BSDs, we should also include the number of current users,
|
|
// and some load averages, but these don't seem to be available yet.
|
|
outln("{} up {}", current_time, human_readable_digital_time(seconds));
|
|
}
|
|
|
|
return 0;
|
|
}
|