Hi Kenji,
The problem is not the daemonizing but the fact that your stdin is not
in fact hooked up to the remote end -- your Ctrl-C is not terminating
the remote end, but the local Fabric session. So foreground programs
like tail -f will also not exit cleanly, in addition to
daemonized-but-not-detached processes which hold up the spawning shell
from exiting.
Interaction like what you seem to have been expecting will be
available in Fabric 1.0 (though offhand I'm not sure whether we can
easily trap Ctrl-C itself, since it has special meaning for the local
end too -- but that's something that can be worked out). In the
meantime you'll have to write your Fab tasks in such a way that they
have some sort of halt condition not requiring interaction.
One "cheat" is to run something like e.g.
local('ssh %s "tail -f /path/to/file"' % env.host_string, capture=False)
which would use an "out-of-band" SSH connection in a local shell,
whose pipes *are* connected to your local ones. While the Ctrl-C
capturing Fabric does might still goof that up, it's worth a shot, and
will definitely work for other situations where Ctrl-C isn't the halt
method.
Best,
Jeff
On Mon, Jun 28, 2010 at 12:59 AM, Kenji Wellman <kenji.well...@gmail.com> wrote:
> Hello,
> To demonstrate a problem I'm having I pasted some code below. On my server
> (Ubuntu 9.10 64 bit) when I run this code, and exit with CTRL C the "tail
> -f" process keeps running, and I have to manually send a SIGTERM signal to
> end it.
>
> Since the process is a non-daemonized process I would expect it to close
> like in regular ssh session after it is closed. Is there any way to get
> functionality like that? Running processes in the foreground is useful to me
> when I'm staging a development version of my site.
>
> from fabric.api import run, env
>
> env.hosts = ['localhost']
>
> def test():
> run('tail -f /var/log/syslog')
>
>
> _______________________________________________
> Fab-user mailing list
> Fab-user@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/fab-user
>
>
--
Jeff Forcier
Unix sysadmin; Python/Ruby developer
http://bitprophet.org
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