Re: Weston headless backend - xvfb-run emulation

2019-01-03 Thread Martin Stransky

On 12/22/18 10:36 AM, Pekka Paalanen wrote:

On Fri, 21 Dec 2018 13:00:12 +0100
Martin Stransky  wrote:


Hi,

I'm working on Firefox/Wayland port on Fedora and there's a need to run
Wayland Firefox in headless Wayland session - it's used in build process
to perform PGO build, it's used for test runs and so. It's generally
what xvfb-run provides - a headless X11 server which launches a single
command and quit when the command finishes.

Is that possible with Weston and any of its backend? I haven't found any
reference how to launch firefox inside weston-headles backend
automatically so far.


Hi,

Weston doesn't have any kind of autolaunch feature, but there are
interested people at least for the desktop use case.

Weston's own test suite uses a custom plugin to launch test
clients, but it's not installed. That might be a better approach
for a test suite than a generic desktop app autolaunch, since you
can make the compositor quit and forward the test app exit code.

That plugin is at tests/weston-test.c, and it implements also a
test protocol, but the most relevant part for you is
idle_launch_client(). test_client_sigchld() handles quitting Weston.

We could think of some kind of arrangement to allow using
Weston/headless to run automated tests in other projects
out-of-the-box. Maybe the idle_launch_client() functionality could
be integrated in the headless backend directly... but then we need
more changes in Weston's test suite to allow running the tests with
different backends. Maybe that would be a slightly longer term plan.

Are you only looking for headless launching of apps, or would you
be interested in more features like screenshooting or fake input
events to drive and check tests?


Hello,

Mozilla uses xvfb as a frame buffer X server and launches x11vnc inside 
it. The Firefox itself is controlled by Marionette [1] so there's no 
need for fake input events (AFAIK). Also the screen capture is not 
necessary for now.


A good start would be to launch Firefox inside wayland headless session 
and I can work from this point further to investigate what's needed. If 
the plugin provides such functionality that will be fine for now.


Thanks,
ma.

[1] 
https://firefox-source-docs.mozilla.org/testing/marionette/marionette/index.html


___
wayland-devel mailing list
wayland-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/wayland-devel


Re: Weston headless backend - xvfb-run emulation

2018-12-22 Thread Pekka Paalanen
On Fri, 21 Dec 2018 13:00:12 +0100
Martin Stransky  wrote:

> Hi,
> 
> I'm working on Firefox/Wayland port on Fedora and there's a need to run 
> Wayland Firefox in headless Wayland session - it's used in build process 
> to perform PGO build, it's used for test runs and so. It's generally 
> what xvfb-run provides - a headless X11 server which launches a single 
> command and quit when the command finishes.
> 
> Is that possible with Weston and any of its backend? I haven't found any 
> reference how to launch firefox inside weston-headles backend 
> automatically so far.

Hi,

Weston doesn't have any kind of autolaunch feature, but there are
interested people at least for the desktop use case.

Weston's own test suite uses a custom plugin to launch test
clients, but it's not installed. That might be a better approach
for a test suite than a generic desktop app autolaunch, since you
can make the compositor quit and forward the test app exit code.

That plugin is at tests/weston-test.c, and it implements also a
test protocol, but the most relevant part for you is
idle_launch_client(). test_client_sigchld() handles quitting Weston.

We could think of some kind of arrangement to allow using
Weston/headless to run automated tests in other projects
out-of-the-box. Maybe the idle_launch_client() functionality could
be integrated in the headless backend directly... but then we need
more changes in Weston's test suite to allow running the tests with
different backends. Maybe that would be a slightly longer term plan.

Are you only looking for headless launching of apps, or would you
be interested in more features like screenshooting or fake input
events to drive and check tests?


Thanks,
pq


pgpsfJegW1lgA.pgp
Description: OpenPGP digital signature
___
wayland-devel mailing list
wayland-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/wayland-devel


Weston headless backend - xvfb-run emulation

2018-12-21 Thread Martin Stransky

Hi,

I'm working on Firefox/Wayland port on Fedora and there's a need to run 
Wayland Firefox in headless Wayland session - it's used in build process 
to perform PGO build, it's used for test runs and so. It's generally 
what xvfb-run provides - a headless X11 server which launches a single 
command and quit when the command finishes.


Is that possible with Weston and any of its backend? I haven't found any 
reference how to launch firefox inside weston-headles backend 
automatically so far.


Thanks,
ma.

___
wayland-devel mailing list
wayland-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/wayland-devel