How to configure in neovim? - uses GetOCamlIndent by default

[gaborigloi]

For some reason, by default neovim uses indentexpr=GetOCamlIndent(), even if ocp-indent is enabled.
If I manually comment out the first few lines of the vim file, it switches to ocp-indent:

" Only load this indent file when no other was loaded.                                                                                                                           
"if exists("b:did_indent")                                                                                                                                                       
"  finish                                                                                                                                                                        
"endif                                                                                                                                                                           
"let b:did_indent = 1 

My neovim configuration is here

[Villetaneuse]

I just had this problem and found out a temporary fix.
The thing is that the system's nvim files are read before, even if one changes the rtp inside ~/.config/nvim/init.{lua,vim}.
The system's indent/ocaml.vim defines b:did_indent, as it should.

Making ocp-indent into a package solves this somehow:

$ mkdir -p ~/.config/nvim/pack/mypack/start
$ ln -s "$(opam var share)/ocp-indent/vim" ~/.config/nvim/pack/mypack/start/ocp-indent

It's far from perfect since it's vulnerable to opam switching but maybe this indent file isn't supposed to change too much anyway.