can't get cmp-r to work with Lazyvim

[ssh352]

https://github.com/LazyVim/LazyVim/tree/main/lua/lazyvim/plugins/extras/lang lazyvim supports many programming languages out of the box. Each language has a single configuration file. Users need very little work to use it. But unfortunately it doesn't support R. I had a hard time configuring R.nvim in Layzvim framework by myself. Here is what I got but R lsp
completion still can't work, please help.

My old nvim-R vim script configuration still works nicely and has completion support from coc but I'd really want to switch to full Lua.

https://github.com/LazyVim/LazyVim/tree/main/lua/lazyvim/plugins/extras/lang it would be really nice we can have a r.lua config here in lazyvim repo and R users can just use R.nvim plugin out of the box, to make initial adoption easier.

return {
    {
        "hrsh7th/nvim-cmp",
        -- this breaks Rust completion
        config = function()
            require("cmp").setup({ sources = { { name = "cmp_r" } } })
            require("cmp_r").setup({})
        end,
    },
    -- {
    --     "R-nvim/cmp-r",
    -- },
    -- {
    --     "nvim-treesitter/nvim-treesitter",
    --     opts = function(_, opts)
    --         if type(opts.ensure_installed) == "table" then
    --             vim.list_extend(opts.ensure_installed, { "r", "rnoweb" })
    --         end
    --     end,
    -- },
    {
        "R-nvim/R.nvim",
        config = function()
            -- Create a table with the options to be passed to setup()
            local opts = {
                R_args = { "--quiet", "--no-save" },
                hook = {
                    after_config = function()
                        -- This function will be called at the FileType event
                        -- of files supported by R.nvim. This is an
                        -- opportunity to create mappings local to buffers.
                        if vim.o.syntax ~= "rbrowser" then
                            vim.api.nvim_buf_set_keymap(0, "n", "<Enter>", "<Plug>RDSendLine", {})
                            vim.api.nvim_buf_set_keymap(
                                0,
                                "v",
                                "<Enter>",
                                "<Plug>RSendSelection",
                                {}
                            )
                        end
                    end,
                },
                min_editor_width = 72,
                rconsole_width = 78,
                disable_cmds = {
                    "RClearConsole",
                    "RCustomStart",
                    "RSPlot",
                    "RSaveClose",
                },
                assign_map = "_",
            }
            -- Check if the environment variable "R_AUTO_START" exists.
            -- If using fish shell, you could put in your config.fish:
            -- alias r "R_AUTO_START=true nvim"
            if vim.env.R_AUTO_START == "true" then
                opts.auto_start = "on startup"
                opts.objbr_auto_start = true
            end
            require("r").setup(opts)
        end,
        lazy = false,
    },
}

[jalvesaq]

It seems that you have to uncomment this:

    -- {
    --     "R-nvim/cmp-r",
    -- },

And, perhaps, put it above "hrsh7th/nvim-cmp" to guarantee that it will be available when loading nvim-cmp.

[ssh352]

Thanks, indeed, a slight complication is that I try to make it work with lazyvim (the same author wrote lazy.nvim plugin manager). The following config now works ok but I still cannot get R snippets to work. Lazyvim has its own Luasnip configs. I am not sure how to make R.nvim work with Lazyvim Luasnips. https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/plugins/coding.lua#L96

return {
    {
        "R-nvim/R.nvim",
        config = function()
            -- Create a table with the options to be passed to setup()
            local opts = {
                R_args = { "--quiet", "--no-save" },
                hook = {
                    after_config = function()
                        -- This function will be called at the FileType event
                        -- of files supported by R.nvim. This is an
                        -- opportunity to create mappings local to buffers.
                        if vim.o.syntax ~= "rbrowser" then
                            vim.api.nvim_buf_set_keymap(0, "n", "<Enter>", "<Plug>RDSendLine", {})
                            vim.api.nvim_buf_set_keymap(
                                0,
                                "v",
                                "<Enter>",
                                "<Plug>RSendSelection",
                                {}
                            )
                        end
                    end,
                },
                min_editor_width = 72,
                rconsole_width = 78,
                disable_cmds = {
                    "RClearConsole",
                    "RCustomStart",
                    "RSPlot",
                    "RSaveClose",
                },
                assign_map = "_",
            }
            -- Check if the environment variable "R_AUTO_START" exists.
            -- If using fish shell, you could put in your config.fish:
            -- alias r "R_AUTO_START=true nvim"
            if vim.env.R_AUTO_START == "true" then
                opts.auto_start = "on startup"
                opts.objbr_auto_start = true
            end
            require("r").setup(opts)
        end,
        lazy = false,
    },
    {
        "nvim-treesitter/nvim-treesitter",
        opts = function(_, opts)
            if type(opts.ensure_installed) == "table" then
                vim.list_extend(opts.ensure_installed, { "r", "rnoweb" })
            end
        end,
    },
    {
        "nvim-cmp",
        dependencies = {
            {
                "R-nvim/cmp-r",
                opts = {},
            },
        },
        opts = function(_, opts)
            table.insert(opts.sources, 1, {
                name = "cmp_r",
                group_index = 1,
                priority = 100,
            })
        end,
    },
}