Maintenancetool and QProcess, --checkupdates argument
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Hi everyone,
I'm using the QtInstallerframework to distribut my program and keep it up to date. I'm quite happy with it, and it works well enough for my case.
I would now like to streamline the update, add and remove packages process for the user. I thought about downloading and parsing the xml files myself and downloading and decompressing the 7z files too, but I realised that the maintenancetool has nearly all features build in, and I could simply use QProcess and an argument string list.
But, I'm a bit confused about how it's working, take for example this code
QStringList args;args << "--checkupdates"; qDebug() << "####" << endl; int exitCode = QProcess::execute("C:/path//to/the/maintenancetool.exe", args); qDebug() << endl << "exitCode" << exitCode;
it returns, 1 when no updates are available, and 0 when there are some, easy enough.
However looking at the Applicationoutput console, I see this:
Where does the xml formated part come from !? oO And is there a way to catch that string for further evaluations? It would save me from parsing the generated
components.xml
fileGreetings.
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@sierdzio ah, I see!
So far my experience with QProcess is limited, so thanks for the given direction!
I was able to adjust the "process" with QProcess 😏
For what ever reason, I was forced to create the QProcess object on the heap and use start instead of execute.
Or the process would still send the output to the standartoutput.QStringList args;args << "--checkupdates"; qDebug() << "####" << endl; QProcess *process = new QProcess(this); qDebug() << process->processChannelMode(); process->setProcessChannelMode(QProcess::MergedChannels); qDebug() << process->processChannelMode(); process->start("C:/Path/To/the/maintenancetool.exe", args); connect(process, QOverload<int>::of(&QProcess::finished), this, [=](int exitCode){ qDebug() << endl << "exitCode" << exitCode; qDebug() << process->readAll() << endl; });
I can work with that, I think :)
thanks @sierdzio !
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@sierdzio ah, I see!
So far my experience with QProcess is limited, so thanks for the given direction!
I was able to adjust the "process" with QProcess 😏
For what ever reason, I was forced to create the QProcess object on the heap and use start instead of execute.
Or the process would still send the output to the standartoutput.QStringList args;args << "--checkupdates"; qDebug() << "####" << endl; QProcess *process = new QProcess(this); qDebug() << process->processChannelMode(); process->setProcessChannelMode(QProcess::MergedChannels); qDebug() << process->processChannelMode(); process->start("C:/Path/To/the/maintenancetool.exe", args); connect(process, QOverload<int>::of(&QProcess::finished), this, [=](int exitCode){ qDebug() << endl << "exitCode" << exitCode; qDebug() << process->readAll() << endl; });
I can work with that, I think :)
thanks @sierdzio !
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Thanks to you as well, for posting the solution. Maybe it will help somebody else, too :-)