lualine.nvim/lua/lualine/components/branch/init.lua

-- Copyright (c) 2020-2021 shadmansaleh
-- MIT license, see LICENSE for more details.
local M = require('lualine.component'):extend()
local require = require('lualine_require').require
local git_branch = require('lualine.components.branch.git_branch')

-- Initilizer
M.init = function(self, options)
  M.super.init(self, options)
  if not self.options.icon then
    self.options.icon = '' -- e0a0
  end
  git_branch.init()
end

M.update_status = function(_, is_focused)
  return git_branch.get_branch((not is_focused and vim.api.nvim_get_current_buf()))
end

return M