[Buildbot-devel] SourceBaseCommand.sourcedatafile location

Jorge Gonzalez gjorge at google.com
Sat Apr 21 20:35:12 UTC 2012

On Sat, Apr 21, 2012 at 6:31 AM, Marc-Antoine Ruel <maruel at chromium.org>wrote:

> Note that Jorge is using the chromium's version of buildbot, which is at
> 0.8.4p1.
Thanks, forgot mentioning what version I'm running. Actually, in this
particular case, I ran into this using 0.8.6

> I'm glad that sourcedata is going away. While an interesting optimization,
> it's much safer to gather actual status from the slave.
> M-A
> Le 20 avril 2012 22:44, Tom Prince <tom.prince at ualberta.net> a écrit :
>>  So, the sourcedata file was originally stored in the workdir. but this
>> was changed because various combinations of vcs+mode clobbered unknown
>> files in the workdir, and also to avoid poluting the build directory, in
>> case build scripts care about this.
> I see. That's actually a reasonable rationale.
In fact, now that I took a closer look, the file name itself is being
suffixed a hash of the srcdir, effectively creating a sourcedatafile per
My case is special and therefore probably doesn't merit a general change.

The reason that is still being a problem in my case is that I'm using
canonical directories for every repository, and all builders running on a
given slave use these exclusively. So every time I add a new builder (rare)
the first time around it won't have sourcedatafiles for any of the common
directories it will need to work on. This will clobber the workidr the
first time around, but after that, things should be good.

Not optimal, but it's a one-time inefficiency for a unusual use case which
would happen rarely, unless one's adding new builders all the time. I just
found a way to copy this file over to where it needs to be.

>> Looking at the master-side steps, it looks like none them store
>> sourcedata, instead extracting enough data from the repository.
>> Although it looks like cvs is currently broken in this respect (#2287).
>> I'm not sure what the proper resolution to this should be.
>>  Tom
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