local function keymap()
  if vim.o.iminsert == 1 then
    return 'RU'
  else
    return ''
  end
end

local function fileinfo()
  return string.format('%s[%s]', vim.bo.fileencoding, vim.bo.fileformat)
end

require('lualine').setup {
  options = {
    icons_enabled = true,
    theme = 'edge',
    component_separators = { left = '|', right = '|' },
    section_separators = {},
    globalstatus = true,
  },
  sections = {
    lualine_a = { 'mode', keymap },
    lualine_b = { 'FugitiveHead' },
    lualine_c = { 'filename' },
    lualine_x = { 'filetype', fileinfo },
    lualine_y = { 'progress' },
    lualine_z = { 'location' },
  },
  extensions = { 'quickfix', 'fugitive' },
}