Is custom diff tool supported?

[roastduck]

Hi,

I have configured git to use a custom diff tool other than the system diff, by configurate in ~/.gitconfig to use difft.

[diff]
        external = difft

However, it seems vim-gitgutter is not aware of this configuration. Does vim-gitgutter follow ~/.gitconfig? If not, can I configure the diff tool explicitly?

[airblade]

You deliberately can't configure the diff tool because only plain git-diff makes sense for gitgutter. GitGutter uses the diff tool to get the patch headers, apply patches, etc.

difftastic's first "non-goal" is patching. It says:

Difftastic output is intended for human consumption, and it does not generate patches that you can apply later. Use diff if you need a patch.