add hash to tarballs so additional samples can be produced for an exi…

[harrypuuter]

…sting production tag

[nshadskiy]

This would work as long as the sample_types are different from the sample_types of all the previous productions, right?

[harrypuuter]

Yes, same sample types worked already before. I thought about this PR a bit more and I will implement it properly with multiple tarballs, split per era and sampletype to get a much cleaner implementation

[harrypuuter]

@nshadskiy If you could have a look again, now KingMaker keeps track of which builds are already done, and provides one tarball per sample / era. If new / other samples are requested, now only builds that are not there yet will be rebuild. I tested it for various setups and did not encounter any problems

[nshadskiy]

I think this looks fine.

[harrypuuter]

feel free to approve and merge then :)

[nshadskiy]

Sorry, made the comment at the wrong place. Looks fine :D