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Userland+Terminal: Port to new CArgsParser API

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While at it, also add some niceties and fix some things.
This commit is contained in:
Sergey Bugaev 2020-01-27 20:25:36 +03:00 • committed by Andreas Kling
parent 9276582535
commit f983dfe319
Notes: sideshowbarker 2024-07-19 09:45:47 +09:00
22 changed files with 392 additions and 653 deletions
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46
Userland/pidof.cpp
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@ -24,8 +24,8 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/String.h>
#include <AK/HashMap.h>
#include <AK/String.h>
#include <AK/Vector.h>
#include <LibCore/CArgsParser.h>
#include <LibCore/CProcessStatisticsReader.h>
@ -60,33 +60,29 @@ static int pid_of(const String& process_name, bool single_shot, bool omit_pid, p
int main(int argc, char** argv)
{
CArgsParser args_parser("pidof");
bool single_shot = false;
const char* omit_pid_value = nullptr;
const char* process_name = nullptr;
args_parser.add_arg("s", "Single shot - this instructs the program to only return one pid");
args_parser.add_arg("o", "pid", "Tells pidof to omit processes with that pid. The special pid %PPID can be used to name the parent process of the pidof program.");
CArgsParser args_parser;
args_parser.add_option(single_shot, "Only return one pid", nullptr, 's');
args_parser.add_option(omit_pid_value, "Omit the given PID, or the parent process if the special value %PPID is passed", nullptr, 'o', "pid");
args_parser.add_positional_argument(process_name, "Process name to search for", "process-name");
CArgsParserResult args = args_parser.parse(argc, argv);
args_parser.parse(argc, argv);
bool s_arg = args.is_present("s");
bool o_arg = args.is_present("o");
pid_t pid = 0;
if (o_arg) {
bool ok = false;
String pid_str = args.get("o");
if (pid_str == "%PPID")
pid = getppid();
pid_t pid_to_omit = 0;
if (omit_pid_value) {
bool ok = true;
if (!strcmp(omit_pid_value, "%PPID"))
pid_to_omit = getppid();
else
pid = pid_str.to_uint(ok);
pid_to_omit = StringView(omit_pid_value).to_uint(ok);
if (!ok) {
fprintf(stderr, "Invalid value for -o\n");
args_parser.print_usage(stderr, argv[0]);
return 1;
}
}
// We should have one single value : the process name
Vector<String> values = args.get_single_values();
if (values.size() == 0) {
args_parser.print_usage();
return 0;
}
return pid_of(values[0], s_arg, o_arg, pid);
return pid_of(process_name, single_shot, omit_pid_value != nullptr, pid_to_omit);
}