> What is the reason why a user may want to specify them separately? > > * I want to use this layout when using plain vim but gvim is so > different that I want to use a different one from usability's > point of view. > > * The layout I want to use with plain vim, when fed to gvim or > nvim, would totally make them misbehave. I cannot reuse the same > layout even if I wanted to. > > * Depending on the kind of conflict I deal with, I want to use > different layouts, but there is no easy mechanism to choose > between multiple values I give to mergetool.vimdiff.layout, so I > use one layout for vimdiff and another for gvimdiff, and > depending on the layout I want to use, I switch between vimdiff > and gvimdiff. > > * Something else? > > If on the other hand, a user may want to stick to a single layout no > matter which variant of vim is used, it may make more sense to just > use a single mergetool.vimdiff.layout across all the different > variants of vim implementations, and possibly, have their own one > override the most generic "vimdiff" one. E.g. gvimdiff would use > mergetool.gvimdiff.layout if exists, or mergetool.vimdiff.layout > otherwise. I think I agree. From the three reasons you mention, only the third one makes some sense, and even that one is too weak to justify having different configuration option names. I'll only leave `mergetool.vimdiff.layout` in v7, which will affect all three variants.
