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0e671286fc
Add support for parsing command line options with GApplication. You can add GOptionGroup and GOptionEntry using two new APIs: g_application_add_option_group() and g_application_add_main_option_entries(). Also add a "handle-local-options" signal that allows handling of commandline arguments in the local process without having to override local_command_line. As a special feature, you can have a %NULL @arg_data in a GOptionEntry which will cause the argument to be stored in a GVariantDict. This dictionary is available for inspection and modification by the "handle-local-options" signal and can be forwarded to the primary instance in cases of command line invocation (where it can be fetched using g_application_command_line_get_options()). https://bugzilla.gnome.org/show_bug.cgi?id=721977
