Re: Octave wants to run startup configuration "wizard" in --no-gui mode

[Pantxo Diribarne]

Le 13/06/2015 16:27, Pantxo Diribarne a écrit :
> Le 13/06/2015 14:58, Stefan Mahr a écrit :
> > > > > > > I think there has been a subtle change in Octave --no-gui 
> > > > > > > behavior in
> > > > > > > the past ten or twenty changesets that wants to run the "first time
> > > > > > > use"
> > > > > > > configuration wizard.  It may be this changeset:
> > > > > > >
> > > > > > > http://hg.savannah.gnu.org/hgweb/octave/rev/6fe746def1aa
> > > > > > > Also load settings and translations in --no-gui mode (bugs 
> > > > > > > #44222 and
> > > > > > > #45199)
> > > > > > Thanks for pointing to it. I wondered why my PPA build did not work,
> > > > > > but
> > > > > > locally everything was fine.
> > > > > >
> > > > > > Stefan
> > > > > Oups, I hadn't thought of this side effect. The configuration wizard
> > > > > is the
> > > > > only place where the user learns about where its settings will be
> > > > > stored.
> > > > > That's why I enabled it even in --no-gui where settings are now also
> > > > > used.
> > > > > On the other hand the only real configuration that this wizard 
> > > > > currently
> > > > > proposes is whether to show the news window, which is not relevant in
> > > > > --no-gui mode.
> > > > > I'll disable the wizard, until we find another solution (e.g. a
> > > > > --no-wizard
> > > > > flag).
> > > > >
> > > > > Pantxo
> > > > IMHO the --no-gui option always implies a --no-wizard flag.
> > > >
> > > > Stefan
> > > What if the wizard is ever used to configure settings that are also
> > > relevant in --no-gui mode (e.g. the language for the figure menus and
> > > tool-tips)?
> > I don't think many users that use the --no-gui option will care about
> > the language settings or tooltips, except they creating their own GUI
> > with qthandles. However, for getting language information on command
> > line, the common way is to check the environment variables.
> >
> > > I attached a patch that I'll push on stable if no one opposes.
> > > Note however that the criteria to launch the wizard is the presence of
> > > an Octave settings file. I you first run --no-gui mode without a  
> > > wizard,
> > > a settings file will be created anyway (because it is now needed). Now
> > > the first time you'll run octave in gui mode the wizard (and the
> > > configuration, information contained therein) won't show up as a
> > > configuration file already exists.
> > Why is it needed? It was not needed before your change (6fe746def1aa). I
> > can't find any setting that could be useful in no-gui mode. There's not
> > even a language setting in the config file.
> It is needed because the annotation dialog stores its last size and 
> position in the settings file (see the bugs mentioned in the title of 
> the changeset). It could be useful for storing the state of some other 
> figure attributes that don't have a counterpart in the figure properties.
>
> Now about the fact the there is "not even a language setting in the 
> config", it's true only if you don't change the default (=launching 
> terminal locale) in the preference manager. The gui language setting 
> could have (often has) a place in the welcome wizard and become useful 
> with or without the gui.
>
> We could have distinct settings file for figures and gui window (I 
> don't know if the ressource_manager can currently handle that) but I 
> don't imagine restricting the use of settings files to the gui mode 
> just because of a corner case.
>
> Regards,
>
> Pantxo
I pushed the patch on stable: 
http://hg.savannah.gnu.org/hgweb/octave/rev/36b32c07c045.
The hydra build currently fails most probably because of the wizard 
(timeout during tests), so I guess this will also be fixed.

Sorry for the annoyance,

Pantxo