Execute "ManipulatePipes" command in LazyVim

elixir.lua

--[[
Triggering these keymaps will transform code that uses the pipe operator to a regular call, and back again.
It's implemented by the command "manipulatePipes" that ElixirLS exposes through the executeCommand interface.

Add this code to a new or existing file under `lua/config/plugins` so it's picked up by LazyVim.
Change the triggering key combinations to your liking.
]]--

local get_cursor_position = function()
  local row, col = unpack(vim.api.nvim_win_get_cursor(0))

  -- vim.api.nvim_win_get_cursor() returns a (1,0)-indexed, buffer-relative cursor position for a given window
  -- i.e. rows are 1-based, cols are 0-based
  -- while the LSP expects a 0-based cursor position
  return row - 1, col
end

local manipulate_pipes = function(direction)
  return function()
    local row, col = get_cursor_position()
    vim.lsp.buf.execute_command({
      command = "manipulatePipes:serverid",
      arguments = { direction, "file://" .. vim.api.nvim_buf_get_name(0), row, col },
    })
  end
end

return {
  {
    "neovim/nvim-lspconfig",
    opts = {
      servers = {
        elixirls = {
          keys = {
            { "<leader>cp", manipulate_pipes("toPipe"), desc = "To Pipe" },
            { "<leader>cP", manipulate_pipes("fromPipe"), desc = "From Pipe" },
          },
        },
      },
    },
  },
}