ubuntu-phone team mailing list archive

[Alex Chiang <achiang@xxxxxxxxxxxxx>]

How do you set environment variables in your desktop file? That's how apps
get launched on the device and my experiments of adding command line
envvars to the Exec= line were unsuccessful.

On Tuesday, August 5, 2014, Christian Dywan <christian.dywan@xxxxxxxxxxxxx>
wrote:

> On 06.08.2014 01:53, Alejandro J. Cura wrote:
> > On Tue, Aug 5, 2014 at 8:02 PM, Alex Chiang <achiang@xxxxxxxxxxxxx
> <javascript:;>> wrote:
> >> On Tue, Aug 5, 2014 at 11:10 AM, Zoltán Balogh
> >> <zoltan.balogh@xxxxxxxxxxxxx <javascript:;>> wrote:
> >>> Hi all,
> >>>
> >>> Exciting news from the SDK Lab!
> >>>
> >>> If you like it short just read this ->
> >>>
> >>> UI ToolKit:
> >>> 1) We have a decision to go with the Qt.Labs Settings API,  the QML
> API will
> >>> be released on the image and in the click chroots soon
> >> Hopefully docs will be updated too. If you attempt to use this module
> >> in an app today, it will attempt to store the app's config in:
> >>
> >> ~/.config/qt-labs.org/applicationName.conf
> >>
> >> (as observed on 14.10 desktop)
> >>
> >> Of course, this is not allowed on the phone due to AppArmor confinement.
> >>
> >> The documentation here:
> >> http://qt-project.org/doc/qt-5/qsettings.html#platform-specific-notes
> >>
> >> makes it seem like we should be hitting case #2 for Unix:
> >> $HOME/.config/MySoft.conf
> >>
> >> but that is not what I observe.
> >>
> >> Additionally, I can't seem to set my app's organization either, to try
> >> and make it hit case #1:
> >>
> >> Qt.application.organization: "com.canonical.achiang"
> >>
> >> But then I see an error on the console:
> >>
> >> Non-existent attached object
> >>
> >> Finally, in general, it would be nice if the SDK provided some way for
> >> Ubuntu apps to work better with AppArmor settings. As per:
> >>
> >>
> http://developer.ubuntu.com/publish/apps/security-policy-for-click-packages/
> >>
> >> ---
> >> The application will have read/write access files in the standard XDG
> >> base directories. Specifically:
> >>
> >> XDG_CACHE_HOME/<APP_PKGNAME>
> >> XDG_CONFIG_HOME/<APP_PKGNAME>
> >> XDG_DATA_HOME/<APP_PKGNAME>
> >> XDG_RUNTIME_DIR/confined/<APP_PKGNAME>
> >> ---
> >>
> >> However, reading environment variables from QML is prohibitively hard
> >> (requires a C++ plugin). It would be better if the SDK provided
> >> helpers for those specific variables so apps don't have to write a
> >> plugin just to read those variables.
> >>
> > I find it weird that this would need to be done by manually reading
> > env vars, and that Qt.Labs.Settings is not using
> > QStandardPaths::ConfigLocation, which already takes XDG_* env vars
> > into account.
> > Perhaps it's a missing feature there?
> >
> > cheers,
> I'm a very practical person. Just try this (example attached):
>
> env APP_ID=uitk XDG_CONFIG_HOME=/tmp qmlscene settings.qml
>
> Et voilá the settings go where you expect them.
>
> For the same reason there's no issue with apparmor.
>
> ciao,
>     Christian
>