[users at bb.net] Timestamp on stdio logs?

[Vasily]

If I remember correctly, this debug info goes to stderr while "normal"
output goes to stdout, so a possible workaround would be to redirect stderr
to stdout, e.g. by adding "2>&1" to the end of command line.
Also note that this debug option won't work too well for parallel builds.

P.S. Give a look at Parts extension for SCons, their logger might do
exactly what you need. Should be hosted at bitbucket.org/sconsparts or
something similar.

Thanks,
Vasily
13 сент. 2016 г. 18:45 пользователь "Long Vu" <long.vu at intelerad.com>
написал:

> Thanks Pierre !  This ts utility looks like what I need.
>
> I also gave the --debug=time a try, it is by far the easiest to
> implement.  So far it works great too but with possibly some weird
> buffering behavior.
>
> It seems that for built-in scons actions (ex: Delete, Mkdir) or
> commands that produce no stdout/stderr and is very fast (ex: ln,
> touch) , the "Command execution time" message seems to be buffered and
> I have a bunch of them stacked together so it is not exactly clear
> which "execution time" is for which command.
>
> However for slow commands (ex: the actually compilation) that produce
> output, then the immediately following "Command execution time" seems
> to be the matching one.  Although it can also be followed by a stack
> of other very short "Command execution time" from preceding quick
> actions.
>
> I think this could be a buffering problem.  Is there a way to turn off
> buffering?
>
>
>
> On Mon, Sep 12, 2016 at 3:44 PM, Pierre Tardy <tardyp at gmail.com> wrote:
> > Hello,
> > as per
> > http://unix.stackexchange.com/questions/26728/prepending-a-
> timestamp-to-each-line-of-output-from-a-command
> > you can use moreutils's ts to prepend timestamp to your commands:
> >
> >   scons <whatever>| ts '[%Y-%m-%d %H:%M:%S]'
> >
> > Le lun. 12 sept. 2016 à 21:36, Long Vu <long.vu at intelerad.com> a écrit :
> >>
> >> Thanks Vasily !  Not what we were looking for but could fill our needs.
> >>
> >> I am still hoping someone could propose an option (ex: in
> >> BuildmasterConfig) that we could turn on for all builders so we can
> >> have timestamps for anything, not just scons build step.
> >>
> >>
> >> On Mon, Sep 12, 2016 at 2:06 PM, Vasily <just.one.man at yandex.ru> wrote:
> >> > Hi,
> >> >
> >> > Just try --debug=time SCons option ;-)
> >> >
> >> > Thanks,
> >> > Vasily
> >> >
> >> > 12 сент. 2016 г. 20:01 пользователь "Long Vu" <long.vu at intelerad.com>
> >> > написал:
> >> >>
> >> >> Hi,
> >> >>
> >> >> Our buildbot calls scons which then calls the various commands that
> >> >> made up the build.
> >> >>
> >> >> We want to diagnose slow builds, specifically which of the commands
> is
> >> >> hogging build time.
> >> >>
> >> >> So is there a quick way to prefix timestamp on each log line
> collected
> >> >> by buildbot?
> >> >>
> >> >> The alternative would be to modify all the scons build file in all
> the
> >> >> source repository to prefix the timestamp, but that would means a lot
> >> >> of commits.
> >> >>
> >> >> We would prefer a centralized solution in buildbot that will also
> >> >> future proof all the new source repositories that we will add later.
> >> >>
> >> >> Thanks,
> >> >>
> >> >>
> >> >> --
> >> >> Long Vu | Build Controller | Intelerad | +1-514-931-6222 ext. 7743
> >> >>
> >> >> --
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> >> --
> >> Long Vu | Build Controller | Intelerad | +1-514-931-6222 ext. 7743
> >>
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> --
> Long Vu | Build Controller | Intelerad | +1-514-931-6222 ext. 7743
>
> --
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