Communication with Rgui.exe doesn't work

[jalvesaq]

As reported by @oktouerl, Rgui.exe as an external "terminal" doesn't work: #307 (comment)

[jalvesaq]

Is anybody using R.nvim with Rgui.exe? I plan to remove the option to run Rgui.exe at the end of February 2025...

[jalvesaq]

I started to remove the integration with Rgui.exe but realized it would be impossible not to break something because I don't have access to a Windows machine. I would need at least Windows running on a virtual machine, and I don't plan to install one anytime soon. So, I'm leaving this issue open.

[PMassicotte]

I could eventually test on wife's Windows machine.

[jalvesaq]

Thanks, but it would still be complicated. Ideally, I would make the changes and leave the code without known bugs. In this case, I would make the changes and leave the code with an unknown number of bugs. It could be a lot of work for both of us. It's better to let the junk code stay because, although useless, it causes no harm.

[DKBurns]

Hi All, I have to work on windows for work. Upon updating the plugin R no longer starts. Noice last line is:

   Warn  09:27:44 notify.warn R.nvim Cannot start R: rnvimserver not started yet.

I'm using a simple config:

return{
  {
    "R-nvim/R.nvim",
    lazy = false,
    opts = {
      -- Create a table with the options to be passed to setup()
      R_args = { "--quiet", "--no-save" },
      hook = {
        on_filetype = 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.
          vim.keymap.set("n", "<Enter>", "<Plug>RDSendLine", { buffer = true })
          vim.keymap.set("v", "<Enter>", "<Plug>RSendSelection", { buffer = true })

          local wk = require("which-key")
          wk.add({
            buffer = true,
            { "<localleader>a", group = "all" },
            { "<localleader>b", group = "between marks" },
            { "<localleader>c", group = "chunks" },
            { "<localleader>f", group = "functions" },
            { "<localleader>g", group = "goto" },
            { "<localleader>i", group = "install" },
            { "<localleader>k", group = "knit" },
            { "<localleader>p", group = "paragraph" },
            { "<localleader>q", group = "quarto" },
            { "<localleader>r", group = "r general" },
            { "<localleader>s", group = "split or send" },
            { "<localleader>t", group = "terminal" },
            { "<localleader>v", group = "view" },
          })
        end,
      },
      pdfviewer = "",
    },
    config = function(_, opts)
      vim.g.rout_follow_colorscheme = true
      require("r").setup(opts)
      require("r.pdf.generic").open = vim.ui.open
    end,
  },
}

I'm afraid I'm a bit of a noob so you might have to give me a little direction on giving you useful information!

For now it's fine, I'll just drag my heels back to Rstudio with vim bindings. I hope this info helps rather than confusing things...

EDIT: checkhealth results

==============================================================================
r: require("r.health").check()

Checking applications and plugins: ~
- OK Neovim version: 0.10.4+ge96f75a4e6
- OK C compiler (`gcc` or `clang`) found.
- OK `R-nvim/cmp-r` found.
- OK `nvim-treesitter/nvim-treesitter` found.

Checking tree-sitter parsers: ~
- OK `r`  found.
- OK `markdown`  found.
- OK `markdown_inline`  found.
- OK `rnoweb`  found.
- OK `latex`  found.
- OK `yaml`  found.

Checking language detection in a Quarto document: ~
- OK Correctly detected: `yaml`
- OK Correctly detected: `markdown`
- OK Correctly detected: `markdown_inline`
- OK Correctly detected: `chunk_header`
- OK Correctly detected: `r`
- OK Correctly detected: `chunk_end`

Checking language detection in an Rnoweb document: ~
- OK Correctly detected: `latex`
- OK Correctly detected: `chunk_header`
- OK Correctly detected: `r`
- OK Correctly detected: `chunk_end`

[jalvesaq]

This bug was reported on January 11, but I can't fix it because don't have access to a Windows machine. You can try this in your R.nvim config:

    external_term = ""

[jalvesaq]

What's the output of :RDebugInfo?

[DKBurns]

Hi Thanks for getting back. I printed the latter first:

I can't prevent there being a space in the path as my username is fixed. Possibility it's that?

nvimcom info:
  Rversion: 4.4.1
  home: C:/Users/<my user name with a space in it>/AppData/Local/R/win-library/4.4/nvimcom
  version: 0.9.63
Time:
  windows setup: 0.0721994
  check health (async): 0.0128711
  global setup: 0.154099

I put external_term = "" like so. Sorry if it's wrong I'm still learning how to manipulate config lua files:

  return {
    "R-nvim/R.nvim",
    lazy = false,
    opts = {
      -- Create a table with the options to be passed to setup()
      external_term = "",
      R_args = { "--quiet", "--no-save" },
      hook = {
        on_filetype = 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.
          vim.keymap.set("n", "<Enter>", "<Plug>RDSendLine", { buffer = true })
          vim.keymap.set("v", "<Enter>", "<Plug>RSendSelection", { buffer = true })

          local wk = require("which-key")
          wk.add({
            buffer = true,
            { "<localleader>a", group = "all" },
            { "<localleader>b", group = "between marks" },
            { "<localleader>c", group = "chunks" },
            { "<localleader>f", group = "functions" },
            { "<localleader>g", group = "goto" },
            { "<localleader>i", group = "install" },
            { "<localleader>k", group = "knit" },
            { "<localleader>p", group = "paragraph" },
            { "<localleader>q", group = "quarto" },
            { "<localleader>r", group = "r general" },
            { "<localleader>s", group = "split or send" },
            { "<localleader>t", group = "terminal" },
            { "<localleader>v", group = "view" },
          })
        end,
      },
      pdfviewer = "",
    },
    config = function(_, opts)
      vim.g.rout_follow_colorscheme = true
      require("r").setup(opts)
      require("r.pdf.generic").open = vim.ui.open
    end,
  }

Finally, I noticed some more optut in Noice which appears upon opening the R file:

11:26:03 msg_show ...ns/AppData/Local/nvim-data/lazy/R.nvim/lua/r/windows.lua:12: attempt to call field 'system' (a nil value)
11:26:03 msg_show stack traceback:
11:26:03 msg_show ^I...ns/AppData/Local/nvim-data/lazy/R.nvim/lua/r/windows.lua:12: in function 'set_R_home'
11:26:03 msg_show ^I...rns/AppData/Local/nvim-data/lazy/R.nvim/lua/r/server.lua:173: in function 'start_rnvimserver'
11:26:03 msg_show ^I...rns/AppData/Local/nvim-data/lazy/R.nvim/lua/r/server.lua:230: in function <...rns/AppData/Local/nvim-data/lazy/R.nvim/lua/r/server.lua:226>

I think this is because R is set to start up automatically when an .R or .Rmd file is opened in nvim.

Hopefully that provides some clues. Also, thank you very much for having a look at this.

[jalvesaq]

Please, try the branch "win_system". It should fix the bug

R.nvim/lua/r/windows.lua:12: attempt to call field 'system' (a nil value)

[DKBurns]

it worked! R is happily playing nice and console opened upon pressing <localleader>rf

For reference to any others that might be forced to work with windows, a working config as of 2025-02-24 (I will edit this if/when the branch is merged) is:

return {
  "R-nvim/R.nvim",
  branch = "main",
  lazy = false,
  opts = {
    -- Create a table with the options to be passed to setup()
    external_term = "",
    R_args = { "--quiet", "--no-save" },
    hook = {
      on_filetype = 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.
        vim.keymap.set("n", "<Enter>", "<Plug>RDSendLine", { buffer = true })
        vim.keymap.set("v", "<Enter>", "<Plug>RSendSelection", { buffer = true })

        local wk = require("which-key")
        wk.add({
          buffer = true,
          { "<localleader>a", group = "all" },
          { "<localleader>b", group = "between marks" },
          { "<localleader>c", group = "chunks" },
          { "<localleader>f", group = "functions" },
          { "<localleader>g", group = "goto" },
          { "<localleader>i", group = "install" },
          { "<localleader>k", group = "knit" },
          { "<localleader>p", group = "paragraph" },
          { "<localleader>q", group = "quarto" },
          { "<localleader>r", group = "r general" },
          { "<localleader>s", group = "split or send" },
          { "<localleader>t", group = "terminal" },
          { "<localleader>v", group = "view" },
        })
      end,
    },
    pdfviewer = "",
  },
  config = function(_, opts)
    vim.g.rout_follow_colorscheme = true
    require("r").setup(opts)
    require("r.pdf.generic").open = vim.ui.open
  end,
}

EDIT: following the merge, main branch is used. Confirmed the above config is functioning on windows, following removing the plugin reinstalling.

[jalvesaq]

Merged now.

[jalvesaq]

Note: I didn't close the issue because running R in Rgui.exe was reported as not working and I haven't fixed the bug yet.