GitPoller uses constant workdir by default leading to crash with other GitPoller instances when it is not overridden

[aliceinwire]

command ['init', '--bare', '/var/lib/buildbot/gitpoller-work'] in None on repourl
https://github.com/GKernelCI/linux-patches.git failed with exit code 128: error: 
could not lock config file /var/lib/buildbot/gitpoller-work/config: File exists

[p12tic]

Could it be that multiple gitpollers share the same directory?

[aliceinwire]

@p12tic the code is here https://github.com/GKernelCI/GBuildbot/blob/master/sources.py

[p12tic]

@aliceinwire Right, so if multiple gitpollers are used, you need to set the workdir to different paths otherwise multiple gitpollers will use the same directory which leads to the error you're seeing.

It's still a bug in Buildbot, we should do this by default.