I broke up with neovim....vim is my best friend now

dot_vim/plugged/vim-airline/autoload/airline/extensions/capslock.vim

@@ -0,0 +1,17 @@
+" MIT License. Copyright (c) 2014-2021 Mathias Andersson et al.
+" Plugin: https://github.com/tpope/vim-capslock
+" vim: et ts=2 sts=2 sw=2
+
+scriptencoding utf-8
+
+if !exists('*CapsLockStatusline')
+  finish
+endif
+
+function! airline#extensions#capslock#status()
+  return tolower(CapsLockStatusline()) ==# '[caps]' ? get(g:, 'airline#extensions#capslock#symbol', 'CAPS') : ''
+endfunction
+
+function! airline#extensions#capslock#init(ext)
+  call airline#parts#define_function('capslock', 'airline#extensions#capslock#status')
+endfunction