lightline.vim

" https://github.com/itchyny/lightline.vim
let g:lightline = {
      \   'active': {
      \      'left': [ [ 'mode', 'paste' ],
      \                [ 'fugitive', 'readonly', 'filename', 'modified' ] ]
      \   },
      \   'component': {
      \       'readonly': '%{&readonly?"🔒":""}',
      \       'fugitive': '%{exists("*fugitive#head") ? fugitive#head(): ""}'
      \   },
      \   'component_visible_condition': {
      \       'fugitive': '(exists("*fugitive#head") && ""!=fugitive#head())'
      \   }
      \ }