I can't sort out how to use custom styles

[justinmcgrath]

Following the example on the main README, I have this in my .Rprofile file:

options(languageserver.formatting_style = function(options) {
    style <- styler::tidyverse_style(indent_by = options$tabSize)
    style$token$force_assignment_op <- NULL
    style
})

I have configured the LSP in NeoVim using this:

local lspconfig = require'lspconfig'
lspconfig.r_language_server.setup {
cmd = {"R", "--slave", "-e", "languageserver::run()"
    },
    filetypes = {"r", "rmd"},
    root_dir = function(fname)
        return lspconfig.util.find_git_ancestor(fname)
    end,
    settings = {},
}

However, it still gives messages about using <- instead of =.

I can't find a way to check whether the R instance used for the LSP is loading Rprofile, but when I start R normally, languageserver.formatting_style is being set correctly. That makes me think it should be reading it in the LSP instance too.

I tried something like this:

cmd = {"R", "--slave", "-e", "{options(languageserver.formatting_style = function(options) { style <- styler::tidyverse_style(indent_by = options$tabSize); style$token$force_assignment_op <- NULL; style }); languageserver::run()}"

That should definitely set the option, even if for whatever reason it's not finding .Rprofile, but that still gives messages about <- too.

Is there something that I'm doing wrong here?