[squeak-dev] The Inbox: CommandLine-fbs.3.mcz

David T. Lewis lewis at mail.msen.com
Mon Dec 30 21:33:54 UTC 2013


On Mon, Dec 30, 2013 at 09:04:05PM +0100, Levente Uzonyi wrote:
> On Mon, 30 Dec 2013, Frank Shearar wrote:
> 
> >On 30 December 2013 19:14, Levente Uzonyi <leves at elte.hu> wrote:
> >>On Mon, 30 Dec 2013, Frank Shearar wrote:
> >>
> >>>On 30 December 2013 18:36,  <commits at source.squeak.org> wrote:
> >>>>
> >>>>A new version of CommandLine was added to project The Inbox:
> >>>>http://source.squeak.org/inbox/CommandLine-fbs.3.mcz
> >>>>
> >>>>==================== Summary ====================
> >>>>
> >>>>Name: CommandLine-fbs.3
> >>>>Author: fbs
> >>>>Time: 30 December 2013, 6:36:22.399 pm
> >>>>UUID: a8ce5a55-8bb5-ac4b-a112-eb308ce3bf53
> >>>>Ancestors: CommandLine-fbs.2
> >>>>
> >>>>If launched headless (with option -headless or -vm-display-null), use 
> >>>>the
> >>>>CommandLineToolSet instead of the StandardToolSet.
> >>>>
> >>>>We must startUp: before AutoStart because AutoStart triggers the
> >>>>processing of startup scripts (because it asks all registered
> >>>>AbstractLaunchers - in particular, ProjectLauncher - to do their thing).
> >>>>
> >>>>=============== Diff against CommandLine-fbs.2 ===============
> >>>
> >>>
> >>>This allows headless things to report bad things happening, like
> >>>dumping syntax error notifications to stdout and exiting.
> >>
> >>
> >>People who use RFB won't like this, because it quits the image on the 
> >>first
> >>error.
> >
> >Does RFB get used in a _headless_ manner? An alternative would be to
> 
> It depends. RFB can be used with -vm-display-null, or one can use xpra and 
> use -vm-display-x11. We start our images with xpra, but still connect to 
> them using RFB, because it's more responsive. xpra is still useful, 
> because it's not safe to press alt+. through RFB, because you can 
> interrupt the RFB process itself.

Our squeaksource.com image works this way. We run it as a headless image
with -vm-display-null, and the image has RFBServer to support interactive
access. It works very well, and I believe that this is a common configuration
for Seaside application servers.

Dave



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