Re: Question about possible git races

Radoslaw Szkodzinski <astralstorm@o2.pl> writes:

Does anything other than git-send-pack call git-receive-pack?

For fetch, git-fetch-pack is called from the core level, but it does not update refs itself. It writes out enough information to its standard output so that the script calling it can update the refs. So at the core level there cannot be any race, but that does not necessarily mean existing scripts are race free.

Our barebone Porcelainish scripts _do_ use update-ref to do the same lock - re-read - rename-to-update cycle when updating the refs using that information, but that is something you explicitly said you are not interested in ;-).