locking mechanism for git

Hello pushok!

We would like to use gitscc with SAP Powerbuilder on a central git
repository.
We would also like to prevent merge conflicts somehow.
One option we investigated was gitolite locking¹, but to do this we would
need to execute a custom command on "checkout" in Powerbuilder. Is this
somehow possible? Can we somehow configure gitscc to execute "git lock ..."
(a custom command would be nice) on checkout?

We can configure a hit hook to unlock and push changes on "checkin" (a
post-commit hook), but of course there is no git hook for "checkout",
because there is no "checkout" command in git.

Would be awesome if we could somehow do this.

Thanks,
Simon




¹ http://gitolite.com/gitolite/locking.html