On 02/27, Jonathan Nieder wrote: > If I share my .gitconfig or .git/config file between multiple machines > (or between multiple Git versions on a single machine) and set > > [protocol] > version = 2 > > then running "git fetch" with a Git version that does not support > protocol v2 errors out with > > fatal: unknown value for config 'protocol.version': 2 > > In the spirit of v1.7.6-rc0~77^2~1 (Improve error handling when > parsing dirstat parameters, 2011-04-29), it is better to (perhaps > after warning the user) ignore the unrecognized protocol version. > After all, future Git versions might add even more protocol versions, > and using two different Git versions with the same Git repo, machine, > or home directory should not cripple the older Git version just > because of a parameter that is only understood by a more recent Git > version. > > So ignore the unrecognized value. It may be useful for spell checking > (for instance, if I put "version = v1" intending "version = 1") to > warn about such settings, but this patch does not, since at least in > these early days for protocol v2 it is expected for configurations > that want to opportunistically use protocol v2 if available not to be > unusual. > > Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx> > --- > Google has been running with a patch like this internally for a while, > since we have been changing the protocol.version number to a new value > like 20180226 each time a minor tweak to the protocolv2 RFC occured. > > The bit I have doubts about is whether to warn. What do you think? Patch looks good to me. And I don't have a strong preference either way for whether to warn or not. -- Brandon Williams
