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Unable to set path for QSettings generated config file

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  • P Offline
    P Offline
    PusRob
    wrote on last edited by PusRob
    #1

    Hi.

    I encountered a problem while trying to set the location of the config file generated by QSettings. Here's the code:

    int main(int argc, char *argv[])
    {
        QCoreApplication::setOrganizationName("MyAppOrg");
        QCoreApplication::setOrganizationDomain("myapp.org");
        QCoreApplication::setApplicationName("MyApp");
    
        QCoreApplication a(argc, argv);
    
        QSettings::setPath(QSettings::IniFormat, QSettings::UserScope, "/tmp");
        QSettings settings;
    
        qDebug() << settings.fileName();
    
        return a.exec();
    }
    

    As per the official docs, I call the static function before creating the QSettings object. The result however is the following (which is the default path, not what I provided):

    "/home/user/.config/MyAppOrg/MyApp.conf"
    

    No matter what path I try to set, the result above remains constant, never changes. I tried to set with SystemScope as well, but no change.

    If I try to use the following, still no joy:

    QSettings settings;
    settings.setPath(QSettings::IniFormat, QSettings::SystemScope, "/tmp");
    

    Could somebody else retry this to see if it truly is a bug? Or what am I doing wrong?

    I'm using:
    GCC 9.3.0
    Linux 5.4.38
    Qt 5.14.1

    Thanks in advance.

    jsulmJ 1 Reply Last reply
    0
    • B Offline
      B Offline
      Bonnie
      wrote on last edited by Bonnie
      #2

      The default format of the constructor you use is QSettings::NativeFormat, so I think you should set that format.
      Or use QSettings::defaultFormat().
      And is there any reason you must set path this way?
      Can't you just pass the full path to the constructor as we usually do?

      QSettings settings("/tmp/MyApp.conf", QSettings::IniFormat);
      
      P 1 Reply Last reply
      3
      • P PusRob

        Hi.

        I encountered a problem while trying to set the location of the config file generated by QSettings. Here's the code:

        int main(int argc, char *argv[])
        {
            QCoreApplication::setOrganizationName("MyAppOrg");
            QCoreApplication::setOrganizationDomain("myapp.org");
            QCoreApplication::setApplicationName("MyApp");
        
            QCoreApplication a(argc, argv);
        
            QSettings::setPath(QSettings::IniFormat, QSettings::UserScope, "/tmp");
            QSettings settings;
        
            qDebug() << settings.fileName();
        
            return a.exec();
        }
        

        As per the official docs, I call the static function before creating the QSettings object. The result however is the following (which is the default path, not what I provided):

        "/home/user/.config/MyAppOrg/MyApp.conf"
        

        No matter what path I try to set, the result above remains constant, never changes. I tried to set with SystemScope as well, but no change.

        If I try to use the following, still no joy:

        QSettings settings;
        settings.setPath(QSettings::IniFormat, QSettings::SystemScope, "/tmp");
        

        Could somebody else retry this to see if it truly is a bug? Or what am I doing wrong?

        I'm using:
        GCC 9.3.0
        Linux 5.4.38
        Qt 5.14.1

        Thanks in advance.

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #3

        @PusRob Can you try to call setPath before you create QCoreApplication instance?

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        P 1 Reply Last reply
        1
        • jsulmJ jsulm

          @PusRob Can you try to call setPath before you create QCoreApplication instance?

          P Offline
          P Offline
          PusRob
          wrote on last edited by
          #4

          @jsulm I tried it, but I still get the same (wrong) result.

          1 Reply Last reply
          0
          • B Bonnie

            The default format of the constructor you use is QSettings::NativeFormat, so I think you should set that format.
            Or use QSettings::defaultFormat().
            And is there any reason you must set path this way?
            Can't you just pass the full path to the constructor as we usually do?

            QSettings settings("/tmp/MyApp.conf", QSettings::IniFormat);
            
            P Offline
            P Offline
            PusRob
            wrote on last edited by
            #5

            @Bonnie If I use the constructor, then it works. But I thought the static function should work as well, hence the question at the end: is this a bug?

            B 1 Reply Last reply
            0
            • P PusRob

              @Bonnie If I use the constructor, then it works. But I thought the static function should work as well, hence the question at the end: is this a bug?

              B Offline
              B Offline
              Bonnie
              wrote on last edited by
              #6

              @PusRob
              Did you try my suggestion?

              QSettings::setPath(QSettings::defaultFormat(), QSettings::UserScope, "/tmp");
              
              P 1 Reply Last reply
              0
              • B Bonnie

                @PusRob
                Did you try my suggestion?

                QSettings::setPath(QSettings::defaultFormat(), QSettings::UserScope, "/tmp");
                
                P Offline
                P Offline
                PusRob
                wrote on last edited by PusRob
                #7

                @Bonnie I tried your solution as well, and it does seem to work with the default settings. Interesting. Maybe the documentation should be updated then. Thanks.

                p.s. Should I open a request ticket (to modifiy the docs) or bug report about this?

                B 1 Reply Last reply
                0
                • P PusRob

                  @Bonnie I tried your solution as well, and it does seem to work with the default settings. Interesting. Maybe the documentation should be updated then. Thanks.

                  p.s. Should I open a request ticket (to modifiy the docs) or bug report about this?

                  B Offline
                  B Offline
                  Bonnie
                  wrote on last edited by Bonnie
                  #8

                  @PusRob
                  Are you sure? I've tried in my Ubuntu.
                  I copied your code from the top post, only changed one line:

                  QSettings::setPath(QSettings::defaultFormat(), QSettings::UserScope, "/tmp");
                  

                  And the output is

                  "/tmp/MyAppOrg/MyApp.conf"
                  
                  1 Reply Last reply
                  1

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