If you want to run some vim script for a specific file type, don't make an
auto command, they get messy really quickly. Instead, you should use
ftpluginstands for file type plugin
To get the file type of the current file, just do:
It'll be automatically sourced when you open a file of that specific type.
Edit matching file
Most of the time, you'll find yourself wanting to edit the ftplugin file of the current filetype. So, here's a quick command to do this:
command! -nargs=? Ftedit execute "tabe ~/.vim/ftplugin/" . ("<args>" == "" ? &filetype : "<args>") . ".vim"
If you just type
:Ftedit, it'll open the ftplugin of the current file.
But it you give it an argument, it'll open the one with the given name.
:set filetype? python :Ftedit " opens ~/.vim/ftplugin/python.vim :Ftedit vim " opens ~/.vim/ftplugin/vim.vim