cmps InsertEnter autocmd triggers BufReadPost

[AckslD]

For some reason the InsertEnter autocmd that cmp adds triggers for some reason BufReadPost with my config. I tried to reproduce this with a minimal config but haven't been able to yet. But wanted to see if someone has some idea of what's going on here.

What I've done so far to track down the problem is to add a new autocmd:

autocmd BufReadPost * echomsg 'hello'

and when I then enter insert mode for the first time I get the message hello.

However if I just before remove the autocmd from cmp it doesn't happen (with autocmd! InsertEnter ___cmp___) then I don't get hello.

So for some reason it seems like lua require'cmp.utils.autocmd'.emit('InsertEnter') triggers BufReadPost. But it doesn't happen with the minimal config.

Does anyone know what the emit function does?

[AckslD]

Okay finally figured it out!

So I'm using packer and setup so that luasnip is lazy loaded by module. Now since luasnip has a ftdetect and ftplugin folders, packer will execute a BufRead event when loading luasnip.

So when entering insert mode the InsertEnter autocmd triggers the function to setup cmp which in turn calls the luasnip module which makes packer load luasnip and therefore trigger BufRead again.

Opened a PR to be able to manually be able to set if BufRead is needed in packer here: wbthomason/packer.nvim#769

Puh!