A tabline replacement for vim.
By default, each tab's name is a list of the buffers in the tab's window.
Tabs can be renamed with the tabbar#rename_current_tab()
function (when
called with no arguments, it opens an input dialog).
nnoremap <C-w>, :call tabbar#rename_current_tab()<cr>
Install with a plugin manager or copy directly into vim's runtime path.
Add this line to your vimrc:
set tabline=%!tabbar#tabline()