On Sun, May 6, 2012, Felipe Contreras wrote: > On Sun, May 6, 2012 at 12:39 PM, Matthieu Moy > <Matthieu.Moy@xxxxxxxxxxxxxxx> wrote: > > Jakub Narebski <jnareb@xxxxxxxxx> writes: > > > > > Actually Git porcelain does use 'the index' as a cache (computing), > > > i.e. as a place to store redundant information (stat data, sha-1 > > > for trees with DIRC dircache extension) for faster access. > > > > This is an implementation optimization, that is not supposed to be > > visible for the user. Commands refering to the "cache" are not about > > stat data cache (e.g. "git diff --cached" is really about the content, > > not the stat cache). > > Exactly; that's an implementation detail that doesn't affect how the > user actually interacts with the staging area. Well, it does (or hopefully just did) affect the user: _if it fails_, in the form of empty diff on no changes because of stat-dirtyness or racy-git :-P -- Jakub Narebski Poland -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html