Tabline

Vim plugin providing a simple black-and-white "tabline" that looks something like this:

··· 2|file2.ext [+]  3|file3.ext  4|·ry_long_file_name.e· [!]  5|file5.ext [~][:] ···

Each tab title is determined as follows:

The "main" file name is always used, i.e. the first window in the tab whose filetype is not present in g:tabline_skip_filetypes (default ['diff', 'help', 'man', 'qf']). The directory is always omitted.
If the file name has more than g:tabline_maxlength characters (default 13), the tab title is truncated and the ends are replaced with ·.
If there are too many tabs open for the window width, the leading and trailing tab titles surrounding the current tab are truncated and replaced with ···.
If the "main" file buffer has been modified since the file was last saved, a [+] is appended to the tab title (similar to the default behavior).
If the "main" file was changed on the disk since it was last loaded into the buffer, a [!] is appended to the tab title (uses au FileChangedShell).
If the "main" file is in a git repository and has unstaged changes, a [~] is appended to the tab title (uses au User FugitiveChanged).
If the "main" file is in a git repository and has uncommitted staged changes, a [:] is appended to the tab title (uses au User FugitiveChanged).

The staged changes flag [~] requires the plugins vim-fugitive and vim-gitgutter.

Installation

Install with your favorite plugin manager. I highly recommend the vim-plug manager. To install with vim-plug, add

Plug 'lukelbd/vim-tabline'

to your ~/.vimrc.