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Editorial Team
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Asked: 2026-05-16T15:04:25+00:00

Is it possible to set Git up so that I can use the three-way

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Is it possible to set Git up so that I can use the three-way compare in KDiff3?

I have two branches that are far too different to auto-merge them, I simply have to check each merge point and I think the best way would be to check out the branch I want the changes from the other branch and say

git difftool HEAD_OF_OTHER_BRANCH -- .

And then select Merge File in KDiff3. After having gone through the files I’d just commit.

I have set up merge.conflictstyle and diff.conflictstyle to diff3 but KDiff3 still starts with a two-way diff. Is this possible? I guess if Git also sends the common ancestor’s hash as a parameter, this is possible, but does it?

There is discussion about how to do this with SVN and BC3, but I couldn’t find anything for Git and KDiff3.

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1 Answer

  1. Editorial Team

    It seems that git diff do only a 2-way diff (which make sense to generate patch etc) except in a merging state , you have to do a merge for that. I was in a similar situation the other day and I ended up mergin using the ours strategy. That worked but wasn’t ideal. Maybe we need a ‘nonresolve’ merging strategy which doesn’t try to resolve any conflicts. You might be able to emulate that by tweaking the .git/MERGE_* files and set all the files as conflicted.
    Otherwise the obvious solution is to checkout 3 different directory and run kdiff3 , but I guess you are looking for a more elegant solution

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