How do I make Git use the editor of my choice for commits?

Question

I would prefer to write my commit messages in Vim, but it is opening them in Emacs.

How do I configure Git to always use Vim? Note that I want to do this globally,

Answer 1

Mvim as your git editor

Like all the other GUI applications, you have to launch mvim with the wait flag.

git config --global core.editor "mvim --remote-wait"