feat: extract text editor tools (#1726)

lua/avante/llm_tools/helpers.lua

@@ -72,4 +72,17 @@ function M.already_in_context(path)
   return false
 end
 
+---@param abs_path string
+---@return integer bufnr
+---@return string | nil error
+function M.get_bufnr(abs_path)
+  local sidebar = require("avante").get()
+  if not sidebar then return 0, "Avante sidebar not found" end
+  local current_winid = vim.api.nvim_get_current_win()
+  vim.api.nvim_set_current_win(sidebar.code.winid)
+  local bufnr = Utils.get_or_create_buffer_with_filepath(abs_path)
+  vim.api.nvim_set_current_win(current_winid)
+  return bufnr, nil
+end
+
 return M