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https://github.com/RGBCube/serenity
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pgrep: Add -n
option to display the newest matching process only
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parent
f95dccdb45
commit
47b530fa71
2 changed files with 10 additions and 4 deletions
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@ -28,6 +28,7 @@ ErrorOr<int> serenity_main(Main::Arguments args)
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bool list_process_name = false;
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bool invert_match = false;
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bool exact_match = false;
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bool newest_only = false;
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HashTable<uid_t> uids_to_filter_by;
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StringView pattern;
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@ -35,6 +36,7 @@ ErrorOr<int> serenity_main(Main::Arguments args)
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args_parser.add_option(display_number_of_matches, "Suppress normal output and print the number of matching processes", "count", 'c');
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args_parser.add_option(pid_delimiter, "Set the string used to delimit multiple pids", "delimiter", 'd', nullptr);
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args_parser.add_option(case_insensitive, "Make matches case-insensitive", "ignore-case", 'i');
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args_parser.add_option(newest_only, "Select the most recently created process only", "newest", 'n');
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args_parser.add_option(list_process_name, "List the process name in addition to its pid", "list-name", 'l');
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args_parser.add_option(Core::ArgsParser::Option {
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.argument_mode = Core::ArgsParser::OptionArgumentMode::Required,
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@ -95,8 +97,11 @@ ErrorOr<int> serenity_main(Main::Arguments args)
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if (display_number_of_matches) {
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outln("{}", matches.size());
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} else {
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quick_sort(matches, [](auto const& a, auto const& b) { return a.pid < b.pid; });
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} else if (!matches.is_empty()) {
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quick_sort(matches, [](auto const& a, auto const& b) { return a.creation_time < b.creation_time; });
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if (newest_only)
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matches = { matches.last() };
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auto displayed_at_least_one = false;
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for (auto& match : matches) {
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if (displayed_at_least_one)
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@ -114,5 +119,5 @@ ErrorOr<int> serenity_main(Main::Arguments args)
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outln();
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}
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return matches.size() > 0 ? 0 : 1;
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return matches.is_empty() ? 1 : 0;
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}
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