Multiple executions of actionsequence content

[paguerlais]

Hi all,

trying to debug some cfengine script, I discovered that the content of
actionsequence from cfagent.conf can be executed twice, whereas
actionsequence from update.conf is executed only once.
I can't figure out why this has been done so. And it has bad consequences
on my script, because some actions are executed twice.

It's not an elementary script, but rather something like :
<cut>
control:
      AddInstallable    = ( ok1 ok2 )
      actionsequence = ( module:my_module ok1 )       # Sets ok1 if it's
execution is ok

      ok1::
            actionsequence = ( module:my_module ok2 ) # Sets ok2 if
execution ok

      ok1.ok2::
            actionsequence = ( shellcommands )

shellcomands:
      "some shell commands"
</cut>

The idea behind this script is to execute the minimum amount of code in
case of failure : do not execute my_module the second time if the first
failed, execute the shell commands only if my_module succeed twice, ... Of
course I could have set ok1.ok2 in the shellcommands section, but it
changes nothing.
Looking at the traces of a verbose execution, I can see that all three
actions (my_module #1, my_module #2, shellcommands) are executed twice.
This can be very dangerous, depending on the purpose of the modules,
commands, ...
I discovered this in my current cfengine version (2.0.1, executed by root),
and checked the sources of both 2.0.1 and 2.0.3, they are similar.

Can somebody explain me what's going on and why ?
Thanks
Patrice






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