Sorry. I thought empty patches were made to work in other cases. 'git-p4' needs to skip these. Wrong mailing list then. On Tue, Jun 9, 2015 at 1:52 PM, Jens Lehmann <Jens.Lehmann@xxxxxx> wrote: > Am 05.06.2015 um 01:20 schrieb Christopher Dunn: >> >> (Seen in git versions: 2.1.0 and 1.9.3 et al.) >> >> $ git format-patch --stdout X^..X | git apply check - >> fatal: unrecognized input >> >> This fails when the commit consists of nothing but a submodule change >> (as in 'git add submodule foo'), but it passes when a file change is >> added to the same commit. >> >> There used to be a similar problem for empty commits, but that was >> fixed around git-1.8: >> >> >> http://stackoverflow.com/questions/20775132/cannot-apply-git-patch-replacing-a-file-with-a-link >> >> Now, 'git format-patch' outputs nothing for an empty commit. I suppose >> that needs to be the behavior also when only submodules are changed, >> since in that case there is no 'diff' section from 'format-patch'. >> >> Use-case: git-p4 >> >> Of course, we do not plan to add the submodule into Perforce, but we >> would like this particular command to behave the same whether there >> are other diffs or not. > > > Hmm, I'm not sure that this is a bug. It looks to me like doing a > > $ git format-patch --stdout X^..X | git apply check - > > when nothing is changed except submodules and expecting it to work > is the cause of the problem. > > I get the same error when I do: > > $git format-patch --stdout master..master | git apply --check - > fatal: unrecognized input > > No submodules involved, just an empty patch. > > I assume you want to ignore all submodule changes, so you should > check if e.g. "git diff --ignore-submodules X^..X" returns anything > before applying that? (From the command you ran I assume you might > be able to drop the --ignore-submodules because you already did set > "diff.ignoreSubmodules" to "all"?) -- 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