On Sat, Nov 26, 2016 at 09:44:36PM -0500, Dun Peal wrote: > I'm using vimdiff as my mergetool, and have the following lines in > ~/.gitconfig: > > [merge] > tool = vimdiff > [mergetool "vimdiff"] > trustExitCode = true > > > My understanding from the docs is that this sets > mergetool.vimdiff.trustExitCode to true, thereby concluding that a > merge hasn't been successful if vimdiff's exit code is non-zero. > > Unfortunately, when I exit Vim using `:cq` - which returns code 1 - > the merge is still presumed to have succeeded. > > Is there a way to accomplish the desired effect, such that exiting > vimdiff with a non-zero code would prevent git from resolving the > conflict in the merged file? I don't use mergetool myself, but peeking at the code, it looks like trustExitCode is used only for a "user" tool, not for the builtin tool profiles. That sounds kind of confusing to me, but I'll leave discussion of that to people more interested in mergetool. However, I think you can work around it by defining your own tool that runs vimdiff: git config merge.tool foo git config mergetool.foo.cmd 'vimdiff "$LOCAL" "$BASE" "$REMOTE" "$MERGED"' git config mergetool.foo.trustExitCode true Though note that the builtin vimdiff invocation is a little more complicated than that. You may want to adapt what is in git.git's mergetools/vimdiff to your liking. -Peff