[ovirt-devel] execCmd() and storing stdout and stderr in log file

[Tomáš Golembiovský]

On Thu, 14 Jul 2016 17:25:28 +0300
Nir Soffer <nsoffer at redhat.com> wrote:

> After https://gerrit.ovirt.org/#/c/46733/ you should be able to create
> the pipeline in python like this:
> 
>     v2v = Popen(["virt-v2v", ...], stdout=PIPE, stderr=STDOUT)
>     tee = Popen(["tee", "-a", logfile], stdin=v2v.stdout, stdout=PIPE,
> stderr=PIPE)
> 
> Now we can read output from tee.stdout, and when tee is finished, we can wait
> for v2v to get the exit code.
> 
> Since all output would go to tee stdout and stderr may only contain tee usage
> errors, we don't need to use AsyncProc, making this code python 3 compatible.


Yes, this may actualy work. And do we plan to adopt the cpopen 1.4.1, where
this is fixed, in VDSM?


-- 
Tomáš Golembiovský <tgolembi at redhat.com>