[Buildbot-devel] Get slave side full path workdir

[Yingshen Yu]

Hi,

I'm hacking a master-side P4 step, I met an issue when generating the p4 client spec on master side.
The client spec requires filling RootDir, which should be a full path from build slave side. 
In client-side P4 step, it is self.builder.basedir,  my question is how do I get the same information in master side step?

Thanks,

-Jonny