Remove protobuf source from repository (or whatever is making cloning slow) about protostan

[sakrejda]

The git call for removing everything matching PATTERN is something like:

git filter-branch --force --index-filter \
    'git rm --cached --ignore-unmatch PATTERN' \
      --prune-empty --tag-name-filter cat -- --all

There's another snippet that you can call to get a sorted list of big objects/etc.... so it takes a little while to figure out what's responsible. I can look into it in a few days if you don't get to it...

[sakrejda]

It'll screw up branches but I think the changes can be done on develop and merged back into branches. It's not like we have a lot of people using this at the moment.

[ariddell]

I think it'll speed up testing a lot. I wouldn't mind if you just reset history after you merge your branches.

[sakrejda]

I did this locally and I think I got it right... it's surprisingly hard to flush out all the packed files.

[ariddell]

ok! Feel free to force push.

[sakrejda]

I'm going to finish the writers branch before I do this. Working on it now...

[sakrejda]

Done.