Re: Howto request multiple/parallel execs

On Tue, Dec 28, 2010 at 7:11 AM, Steven Zedeck <[email protected]> wrote:
> Hi,
>
> I’m using Cruisecontrol 2.8.4 under Linux.
>
> I need to execute multiple Perl scripts in parallel. Can this be done with
> the exec tag in build.xml? I can’t seem to find online somewhere what is the
> syntax of all the valid tags.

As I understand it, each exec is executed in sequence, and if any one
returns a bad exit code the build fails and the execs that follow it
do not get called.

If you want to run processes in parallel, you'll have to write your
own script to handle it.  The trickiest part would most likely be to
detect bad exit codes.  I don't know Perl very well, but if you have
Python, you could do something like this:

import sys
import subprocess

list_of_shell_commands = [...]
scripts = [subprocess.Popen(cmd=x, shell=True) for x in list_of_shell_commands]
sys.exit(sum([x.wait() for x in scripts]))


-- 
Lincoln Peters
<[email protected]>

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