bug#45404: closed (kiwix-desktop does not start)

[GNU bug Tracking System]

Your message dated Tue, 29 Dec 2020 21:29:40 +0100
with message-id 
<3815859d39110ee91c1938482e18415645cfacc8.camel@student.tugraz.at>
and subject line Re: [PATCH] gnu: kiwix-desktop: Fix program start.
has caused the debbugs.gnu.org bug report #45404,
regarding kiwix-desktop does not start
to be marked as done.

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-- 
45404: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=45404
GNU Bug Tracking System
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--- Begin Message --- Subject: kiwix-desktop does not start Date: Thu, 24 Dec 2020 13:33:24 +0100 User-agent: Evolution 3.34.2

Hello Guix,

kiwix-desktop doesn't start. Depending on the environment, I get
different error messages:

Variant #A (pure environment, in GDM session)
$ guix time-machine --commit=20a687bbfbc72ffcd802b4bc59db344ad4291577
environment --ad-hoc --pure kiwix-desktop -- kiwix-desktop

> No protocol specified
> qt.qpa.xcb: could not connect to display :1
> qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even
> though it was found.
> This application failed to start because no Qt platform plugin could
be initialized. Reinstalling the application may fix this problem.
>
> Available platform plugins are: eglfs, linuxfb, minimal, minimalegl,
> offscreen, vnc, xcb.
>
> Aborted

Not sure what's going on here, but here's a GDB backtrace:

Breakpoint 1, 0x00007fffed1e5a90 in abort ()
   from /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-
2.31/lib/libc.so.6
(gdb) bt
#0  0x00007fffed1e5a90 in abort ()
   from /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-
2.31/lib/libc.so.6
#1  0x00007fffed78ba2f in QMessageLogger::fatal(char const*, ...) const
()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Core.so.5
#2  0x00007fffee44c8f4 in
QGuiApplicationPrivate::createPlatformIntegration() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Gui.so.5
#3  0x00007fffee44cdbd in
QGuiApplicationPrivate::createEventDispatcher() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Gui.so.5
#4  0x00007fffed994905 in QCoreApplicationPrivate::init() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Core.so.5
#5  0x00007fffee44e95c in QGuiApplicationPrivate::init() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Gui.so.5
#6  0x00007fffeeb4832e in QApplicationPrivate::init() ()
   from /gnu/store/lg0pz5wvpfd5xq3qhmarq3p4nqi64hdd-qtbase-
5.14.2/lib/libQt5Widgets.so.5
#7  0x000000000045a84c in ?? ()
#8  0x00000000004333d6 in ?? ()
#9  0x0000000000422d30 in ?? ()
#10 0x00007fffed1d0a6d in __libc_start_main ()
   from /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-
2.31/lib/libc.so.6
#11 0x00000000004236ea in ?? ()

Variant #B (installed in user profile, in GDM session)

$ kiwix-desktop

> Could not find QtWebEngineProcess

Greetings,
Maxime

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--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: [PATCH] gnu: kiwix-desktop: Fix program start.
>
>
>
>
> Date: 
>
> Tue, 29 Dec 2020 21:29:40 +0100
>
>
>
>
> User-agent: 
>
> Evolution 3.34.2 
>
>
>
>
> Pushed, thanks!
>
> Small hint, if you want to use pure environments, don't forget
> to expose environment variables such as DISPLAY and XAUTHORITY.
>
> Regards,
> Leo 
>
> Am Freitag, den 25.12.2020, 17:36 +0100 schrieb Michael Rohleder:
> > Fixes <https://bugs.gnu.org/45404>;.
> > 
> > * gnu/packages/web.scm (kiwix-desktop)[arguments]: Add phase to wrap
> > QTWEBENGINEPROCESS_PATH.
> > ---
> >  gnu/packages/web.scm | 12 +++++++++++-
> >  1 file changed, 11 insertions(+), 1 deletion(-)
> > 
> > diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
> > index 8d7dfe2804..7486eb7f5b 100644
> > --- a/gnu/packages/web.scm
> > +++ b/gnu/packages/web.scm
> > @@ -7981,7 +7981,17 @@ It contains the code shared by all Kiwix
> > ports.")
> >             (lambda* (#:key inputs #:allow-other-keys)
> >               (substitute* "kiwix-desktop.pro"
> >                 (("webenginewidgets" all) (string-append all "
> > printsupport")))
> > -             #t)))))
> > +             #t))
> > +         (add-after 'install 'wrap-qt-process-path
> > +           (lambda* (#:key inputs outputs #:allow-other-keys)
> > +             (let* ((out (assoc-ref outputs "out"))
> > +                    (bin (string-append out "/bin/kiwix-desktop"))
> > +                    (qt-process-path (string-append
> > +                                      (assoc-ref inputs
> > "qtwebengine")
> > +                                      "/lib/qt5/libexec/QtWebEngineP
> > rocess")))
> > +               (wrap-program bin
> > +                 `("QTWEBENGINEPROCESS_PATH" = (,qt-process-path)))
> > +               #t))))))
> >      (inputs
> >       `(("curl" ,curl)
> >         ("icu4c" ,icu4c)
>
>
>
> --- End Message ---