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Revise command-line show message condition

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Now when user specified 'help' or 'version' flag, the program will process them first and
ignore all other flags (even invalid flags).
This improves program usability since user will be able to consult the help description without
ensuring existing flags are all valid (or removing all flags). And user can refine the flags
after reading the help description.
This commit is contained in:
Chocobo1 2025-07-24 23:22:03 +08:00
commit 9aebb66dd4
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1 changed files with 15 additions and 25 deletions
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40
src/app/main.cpp
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@ -182,9 +182,6 @@ int main(int argc, char *argv[])
adjustFileDescriptorLimit();
#endif
// We must save it here because QApplication constructor may change it
const bool isOneArg = (argc == 2);
// `app` must be declared out of try block to allow display message box in case of exception
std::unique_ptr<Application> app;
try
@ -204,34 +201,27 @@ int main(int argc, char *argv[])
#endif
const QBtCommandLineParameters params = app->commandLineArgs();
// "show help/version" takes priority over other flags
if (params.showHelp)
{
displayUsage(QString::fromLocal8Bit(argv[0]));
return EXIT_SUCCESS;
}
#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
if (params.showVersion)
{
displayVersion();
return EXIT_SUCCESS;
}
#endif
if (!params.unknownParameter.isEmpty())
{
throw CommandLineParameterError(QCoreApplication::translate("Main", "%1 is an unknown command line parameter.",
"--random-parameter is an unknown command line parameter.")
.arg(params.unknownParameter));
}
#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
if (params.showVersion)
{
if (isOneArg)
{
displayVersion();
return EXIT_SUCCESS;
}
throw CommandLineParameterError(QCoreApplication::translate("Main", "%1 must be the single command line parameter.")
.arg(u"-v (or --version)"_s));
}
#endif
if (params.showHelp)
{
if (isOneArg)
{
displayUsage(QString::fromLocal8Bit(argv[0]));
return EXIT_SUCCESS;
}
throw CommandLineParameterError(QCoreApplication::translate("Main", "%1 must be the single command line parameter.")
.arg(u"-h (or --help)"_s));
}
// Check if qBittorrent is already running
if (app->hasAnotherInstance())