Vi mode for kitty

[txtyash]

I had seen quite a few examples of scrollback piped to nvim.... They had me lost. Thanks to a guy from matrix named seandewar. I have really good vi mode inside kitty. The only thing missing is the syntax.

Create a .lua file. I made ~/.config/kitty/vi-mode.lua:

local api = vim.api
local orig_buf = api.nvim_get_current_buf()
local term_buf = api.nvim_create_buf(false, true)
api.nvim_set_current_buf(term_buf)
vim.bo.scrollback = 100000
local term_chan = api.nvim_open_term(0, {})
api.nvim_chan_send(term_chan, table.concat(api.nvim_buf_get_lines(orig_buf, 0, -1, true), "\r\n"))
vim.fn.chanclose(term_chan)
api.nvim_buf_set_lines(orig_buf, 0, -1, true, api.nvim_buf_get_lines(term_buf, 0, -1, true))
api.nvim_set_current_buf(orig_buf)
api.nvim_buf_delete(term_buf, { force = true })
vim.bo.modified = false
api.nvim_win_set_cursor(0, {api.nvim_buf_line_count(0), 0})

And in your kitty.conf:

scrollback_pager nvim +"source /home/zim/kitty/vi-mode.lua"
map alt+s show_scrollback

All done!

[mikesmithgh]

Very nice! I used this as part of my inspiration working on kitty-scrollback.nvim

😽 Open your Kitty scrollback buffer with Neovim. Ameowzing!

[folke]

You almost had the code to get proper syntax highlighting :)

To get the syntax highlighted, you can just use the terminal buffer:

function M.colorize()
  vim.wo.number = false
  vim.wo.relativenumber = false
  vim.wo.statuscolumn = ""
  vim.wo.signcolumn = "no"
  local orig_buf = vim.api.nvim_get_current_buf()
  local lines = vim.api.nvim_buf_get_lines(orig_buf, 0, -1, false)
  while #lines > 0 and vim.trim(lines[#lines]) == "" do
    lines[#lines] = nil
  end
  local buf = vim.api.nvim_create_buf(false, true)
  local channel = vim.api.nvim_open_term(buf, {})
  vim.api.nvim_chan_send(channel, table.concat(lines, "\r\n"))
  vim.api.nvim_set_current_buf(buf)
  vim.keymap.set("n", "q", "<cmd>qa!<cr>", { silent = true, buffer = buf })
  vim.api.nvim_create_autocmd("TermEnter", { buffer = buf, command = "stopinsert" })
  vim.defer_fn(function()
    -- go to the end of the terminal buffer
    vim.cmd.startinsert()
  end, 10)
end