Class ISlaveCommand

Create the Command. 'builder' is a reference to the parent buildbot.bot.SlaveBuilder instance, which will be used to send status updates (by calling builder.sendStatus). 'stepId' is a random string which helps correlate slave logs with the master. 'args' is a dict of arguments that comes from the master-side BuildStep, with contents that are specific to the individual Command subclass.

This method is not intended to be subclassed.

This method is provided for subclasses to override, to extract parameters from the 'args' dictionary. The default implemention does nothing. It will be called from __init__

Begin the command, and return a Deferred.

While the command runs, it should send status updates to the master-side BuildStep by calling self.sendStatus(status). The 'status' argument is typically a dict with keys like 'stdout', 'stderr', and 'rc'.

When the step completes, it should fire the Deferred (the results are not used). If an exception occurs during execution, it may also errback the deferred, however any reasonable errors should be trapped and indicated with a non-zero 'rc' status rather than raising an exception. Exceptions should indicate problems within the buildbot itself, not problems in the project being tested.

This is called to tell the Command that the build is being stopped and therefore the command should be terminated as quickly as possible. The command may continue to send status updates, up to and including an 'rc' end-of-command update (which should indicate an error condition). The Command's deferred should still be fired when the command has finally completed.

If the build is being stopped because the slave it shutting down or because the connection to the buildmaster has been lost, the status updates will simply be discarded. The Command does not need to be aware of this.

Child shell processes should be killed. Simple ShellCommand classes can just insert a header line indicating that the process will be killed, then os.kill() the child.

__iro__

Value:

(<InterfaceClass buildbot.slave.interfaces.ISlaveCommand>, <InterfaceClass zope.interface.Interface>)

__sro__

Value:

(<InterfaceClass buildbot.slave.interfaces.ISlaveCommand>, <InterfaceClass zope.interface.Interface>)