Entering insert mode automatically when editing git commit messages

Question

If I do a git commit, when Vim opens, I want to be in insert mode straight away.

I noticed that the filetype is set to gitcommit w

Answer 1

This is probably a bit more complex than it needs to be, but you can do this with an individual filetype plugin:

$ mkdir -p ~/.vim/ftplugin/gitcommit
$ echo 'startinsert!' > !$/git-commit-insert.vim