vim-airline

Lean & mean statusline for vim that's light as air.

Rationale

There's already powerline, why yet another statusline?

• it's 100% vimscript; no python needed.
• it's small. i want the core plugin to be less than 200 lines as a rule (specifically adhering to the open/closed principle).
• despite the small size, it is fully featured and already integrates with: vim-bufferline, fugitive, unite, ctrlp, minibufexpl, gundo, undotree, nerdtree, tagbar and syntastic.
• it looks good with regular fonts, and provides configuration points so you can use unicode or powerline symbols.
• it's fast to load, taking roughly 1ms. by comparison, powerline needs 60ms on the same machine.
• it's fully customizable; if you know a little statusline syntax you can tweak it to your needs.
• it's trivial to write colorschemes; for a minimal theme you need to edit 9 lines of colors. (please send pull requests if you create new themes!)

What about old powerline?

• the old version still works well, but since it's deprecated new features won't get added
• it uses different font codes, which makes it incompatible with other powerline bindings in the same terminal (e.g. bash, zsh, tmux, etc.)

Why's it called airline?

I wrote the initial version on an airplane, and since it's light as air it turned out to be a good name. Thanks for flying vim!

Installation

This plugin follows the standard runtime path structure, and as such it can be installed with a variety of plugin managers:

• pathogen
• git clone https://github.com/bling/vim-airline ~/.vim/bundle/vim-airline
• neobundle
• NeoBundle 'bling/vim-airline'
• vundle
• Bundle 'bling/vim-airline'
• manual
• copy all of the files into your ~/.vim directory

Configuration

:help airline

Integrating with powerline fonts

For the nice looking powerline symbols to appear, you will need to install a patched font. Instructions can be found in the official powerline documentation. Prepatched fonts can be found in the powerine-fonts repository.

Finally, enable them in vim-airline by adding let g:airline_powerline_fonts = 1 to your vimrc.

FAQ/Troubleshooting

• the powerline font symbols are not showing up
• the older deprecated vim-powerline uses different font codes; ensure you are using v2 fonts.
• there is a pause when leaving insert mode
• you need to set ttimeoutlen to a low number; 50 is recommended
• you don't see any colors
• all of the themes use a 256 terminal color palette. it's likely that the value of t_Co is misconfigured. please see this article on how to configure your terminal. pull requests for 8 and 16 color terminals are welcome.
• you get the error Unknown function: fugitive#head
• you are probably using version 1.2, which is very old...download v2 from the project page.
• airline doesn't appear until i create a new split
• add set laststatus=2 to your vimrc
• bufferline is printing to the statusline as well as the command bar
• you can disable automatic echoing by adding let g:bufferline_echo = 0 to your vimrc
• the statusline wraps
• you are probably using iTerm with double-width characters enabled. either disable this, or set ambiwidth=double in your vimrc.
• how do i get rid of the default mode indicator?
• add set noshowmode to your vimrc

Bugs

If you encounter a bug, please do the following:

• reproduce it with this minivimrc repository to rule out any configuration conflicts.
• specify your version and patch level, as well as operating system (found with :version).
• a link to a gist or your vimrc where it can be reproduced.

Screenshots

A full list of screenshots can be found in the Wiki.

Contributions

Contributions and pull requests are welcome. Please take note of the following guidelines:

• adhere to the existing style as much as possible; notably, 2 space indents and long-form keywords.
• keep the history clean! squash your branches before you submit a pull request. pull --rebase is your friend.
• this plugin got a lot more popular than i initially expected, if you make changes to the core, please test on as many versions of vim as possible.

License

Distributed under the same terms as the Vim license. See :help license.