Automatic Knitting

[inakineitor]

Hi! I was wondering if there is a way to automatically knit a document as the .Rmd buffer is saved.

[PMassicotte]

It should be the case. It works for both qmd and rmd files on my side.

[jalvesaq]

<LocalLeader>kr already saves the buffer before sending to R the command to knit it. But what you want can be achieved with an autocmd in your ~/.config/nvim/init.lua:

vim.cmd.autocmd("BufWritePost", "*.Rmd", "lua require('r.rmd').make('default')")

Or in your R.nvim config (example for lazy.nvim):

{
  "R-nvim/R.nvim",
  config = function()
    local opts = {
      hook = {
        on_filetype = function()
          if vim.o.filetype == "rmd" then
            vim.cmd("autocmd BufWritePost <buffer> lua require('r.rmd').make('default')")
          end
        end,
      },
    }
    require("r").setup(opts)
  end,
},

[inakineitor]

Thank you!! For anyone else attempting to the same in MacOS, the default file loading with Skim opened a new window every time there was a knit, regardless of whether it was manually or automatically, so I set pdfviewer = "" in opts to get it to open with the OS default (Preview). Preview closes the previous view of a document if attempting to open a second time so the window will update and show the new content without creating excess instances.