429 lines
17 KiB
Plaintext
429 lines
17 KiB
Plaintext
*airline.txt* Lean and mean statusline that's light as air
|
||
_ _ _ _ ~
|
||
__ _(_)_ __ ___ __ _(_)_ __| (_)_ __ ___ ~
|
||
\ \ / / | '_ ` _ \ _____ / _` | | '__| | | '_ \ / _ \ ~
|
||
\ V /| | | | | | |_____| (_| | | | | | | | | | __/ ~
|
||
\_/ |_|_| |_| |_| \__,_|_|_| |_|_|_| |_|\___| ~
|
||
~
|
||
==============================================================================
|
||
INTRODUCTION *airline*
|
||
|
||
vim-airline is a fast and lightweight alternative to powerline, written
|
||
in 100% vimscript with no outside dependencies.
|
||
|
||
==============================================================================
|
||
FEATURES *airline-features*
|
||
|
||
* tiny core written with extensibility in mind.
|
||
* integrates with many popular plugins.
|
||
* looks good with regular fonts, and provides configuration points so you
|
||
can use unicode or powerline symbols.
|
||
* optimized for speed; it loads in under a millisecond.
|
||
* fully customizable; if you know a little |statusline| syntax you can
|
||
tweak it to your needs.
|
||
* extremely easy to write themes.
|
||
|
||
==============================================================================
|
||
NAME *airline-name*
|
||
|
||
Where did the name come from?
|
||
|
||
I wrote this on an airplane, and since it's light as air it turned out to be a
|
||
good name :-)
|
||
|
||
==============================================================================
|
||
CONFIGURATION *airline-configuration*
|
||
|
||
There are a couple configuration values available (shown with their default
|
||
values):
|
||
|
||
* the separator used on the left side >
|
||
let g:airline_left_sep='>'
|
||
<
|
||
* the separator used on the right side >
|
||
let g:airline_right_sep='<'
|
||
<
|
||
* enable modified detection >
|
||
let g:airline_detect_modified=1
|
||
|
||
* enable iminsert detection >
|
||
let g:airline_detect_iminsert=1
|
||
<
|
||
* determine whether inactive windows should have the left section collapsed to
|
||
only the filename of that buffer. >
|
||
let g:airline_inactive_collapse=1
|
||
<
|
||
* themes are automatically selected based on the matching colorscheme. this
|
||
can be overridden by defining a value. >
|
||
let g:airline_theme=
|
||
<
|
||
* if you want to patch the airline theme before it gets applied, you can
|
||
supply the name of a function where you can modify the palette. >
|
||
let g:airline_theme_patch_func = 'AirlineThemePatch'
|
||
function! AirlineThemePatch(palette)
|
||
if g:airline_theme == 'badwolf'
|
||
for colors in values(a:palette.inactive)
|
||
let colors[3] = 245
|
||
endfor
|
||
endif
|
||
endfunction
|
||
<
|
||
* enable/disable usage of patched powerline font symbols >
|
||
let g:airline_powerline_fonts=0
|
||
<
|
||
* define the set of text to display for each mode. >
|
||
let g:airline_mode_map = {} " see source for the defaults
|
||
|
||
" or copy paste the following into your vimrc for shortform text
|
||
let g:airline_mode_map = {
|
||
\ '__' : '-',
|
||
\ 'n' : 'N',
|
||
\ 'i' : 'I',
|
||
\ 'R' : 'R',
|
||
\ 'c' : 'C',
|
||
\ 'v' : 'V',
|
||
\ 'V' : 'V',
|
||
\ '' : 'V',
|
||
\ 's' : 'S',
|
||
\ 'S' : 'S',
|
||
\ '' : 'S',
|
||
\ }
|
||
<
|
||
* define the set of filename match queries which excludes a window from having
|
||
its statusline modified >
|
||
let g:airline_exclude_filenames = [] " see source for current list
|
||
<
|
||
* define the set of filetypes which are excluded from having its window
|
||
statusline modified >
|
||
let g:airline_exclude_filetypes = [] " see source for current list
|
||
<
|
||
* defines whether the preview window should be excluded from have its window
|
||
statusline modified (may help with plugins which use the preview window
|
||
heavily) >
|
||
let g:airline_exclude_preview = 0
|
||
<
|
||
==============================================================================
|
||
COMMANDS *airline-commands*
|
||
|
||
:AirlineTheme {theme-name} *:AirlineTheme*
|
||
Displays or changes the current theme.
|
||
|
||
:AirlineToggleWhitespace *:AirlineToggleWhitespace*
|
||
Toggles whitespace detection.
|
||
|
||
:AirlineToggle *:AirlineToggle*
|
||
Toggles between the standard `statusline`
|
||
|
||
==============================================================================
|
||
CUSTOMIZATION *airline-customization*
|
||
|
||
The following are some unicode symbols for customizing the left/right
|
||
separators, as well as the powerline font glyths.
|
||
>
|
||
" unicode symbols
|
||
let g:airline_left_sep = '»'
|
||
let g:airline_left_sep = '▶'
|
||
let g:airline_right_sep = '«'
|
||
let g:airline_right_sep = '◀'
|
||
let g:airline_linecolumn_prefix = '␊ '
|
||
let g:airline_linecolumn_prefix = ' '
|
||
let g:airline_linecolumn_prefix = '¶ '
|
||
let g:airline#extensions#branch#symbol = '⎇ '
|
||
let g:airline#fragments#symbols.paste = 'ρ'
|
||
let g:airline#fragments#symbols.paste = 'Þ'
|
||
let g:airline#fragments#symbols.paste = '∥'
|
||
let g:airline#extensions#whitespace#symbol = 'Ξ'
|
||
|
||
" powerline symbols
|
||
let g:airline_left_sep = ''
|
||
let g:airline_left_alt_sep = ''
|
||
let g:airline_right_sep = ''
|
||
let g:airline_right_alt_sep = ''
|
||
let g:airline#extensions#branch#symbol = ' '
|
||
let g:airline#extensions#readonly#symbol = ''
|
||
let g:airline_linecolumn_prefix = ' '
|
||
|
||
" old vim-powerline symbols
|
||
let g:airline_left_sep = '⮀'
|
||
let g:airline_left_alt_sep = '⮁'
|
||
let g:airline_right_sep = '⮂'
|
||
let g:airline_right_alt_sep = '⮃'
|
||
let g:airline#extensions#branch#symbol = '⭠'
|
||
let g:airline#extensions#readonly#symbol = '⭤'
|
||
let g:airline_linecolumn_prefix = '⭡'
|
||
<
|
||
|
||
For more intricate customizations, you can replace the predefined sections
|
||
with the usual statusline syntax.
|
||
|
||
Note: Many of these settings can also be controlled with |airline-configuration|
|
||
variables, which is useful for sections which by default host more than one
|
||
extension.
|
||
>
|
||
variable names default contents
|
||
----------------------------------------------------------------------------
|
||
let g:airline_section_a (the mode/paste indicator)
|
||
let g:airline_section_b (the fugitive/lawrencium branch indicator)
|
||
let g:airline_section_c (bufferline or filename)
|
||
let g:airline_section_gutter (readonly, csv)
|
||
let g:airline_section_x (tagbar, virtualenv, filetype)
|
||
let g:airline_section_y (fileencoding, fileformat)
|
||
let g:airline_section_z (percentage, line number, column number)
|
||
let g:airline_section_warning (syntastic, whitespace)
|
||
|
||
" here is an example of how you could replace the branch indicator with
|
||
" the current working directory, followed by the filename.
|
||
let g:airline_section_b = '%{getcwd()}'
|
||
let g:airline_section_c = '%t'
|
||
<
|
||
==============================================================================
|
||
EXTENSIONS *airline-extensions*
|
||
|
||
Most extensions are enabled by default and lazily loaded when the
|
||
corresponding plugin (if any) is detected.
|
||
|
||
*airline-default*
|
||
The default extension understands all of the `g:` variables in the
|
||
|airline-configuration| section, however it also has some more fine-tuned
|
||
configuration values that you can use.
|
||
|
||
* control which sections get truncated and at what width. >
|
||
let g:airline#extensions#default#section_truncate_width = {
|
||
\ 'b': 90,
|
||
\ 'y': 90,
|
||
\ })
|
||
<
|
||
*airline-branch*
|
||
fugitive.vim <https://github.com/tpope/vim-fugitive>
|
||
lawrencium <https://bitbucket.org/ludovicchabant/vim-lawrencium>
|
||
|
||
* enable/disable fugitive/lawrencium integration >
|
||
let g:airline#extensions#branch#enabled = 1
|
||
<
|
||
* change the text for when no branch is detected >
|
||
let g:airline#extensions#branch#empty_message = ''
|
||
<
|
||
*airline-syntastic*
|
||
syntastic <https://github.com/scrooloose/syntastic>
|
||
|
||
* enable/disable syntastic integration >
|
||
let g:airline#extensions#syntastic#enabled = 1
|
||
<
|
||
*airline-tagbar*
|
||
tagbar <https://github.com/majutsushi/>
|
||
|
||
* enable/disable tagbar integration >
|
||
let g:airline#extensions#tagbar#enabled = 1
|
||
<
|
||
*airline-csv*
|
||
csv.vim <https://github.com/chrisbra/csv.vim>
|
||
|
||
* enable/disable csv integration for displaying the current column. >
|
||
let g:airline#extensions#csv#enabled = 1
|
||
<
|
||
* change how columns are displayed. >
|
||
let g:airline#extensions#csv#column_display = 'Number' (default)
|
||
let g:airline#extensions#csv#column_display = 'Name'
|
||
<
|
||
*airline-hunks*
|
||
vim-gitgutter <https://github.com/airblade/vim-gitgutter>
|
||
vim-signify <https://github.com/mhinz/vim-signify>
|
||
|
||
* enable/disable showing a summary of changed hunks under source control.
|
||
let g:airline#extensions#hunks#enabled = 1
|
||
<
|
||
* enable/disable showing only non-zero hunks. >
|
||
let g:airline#extensions#hunks#non_zero_only = 0
|
||
<
|
||
* set hunk count symbols. >
|
||
let g:airline#extensions#hunks#hunk_symbols = ['+', '~', '-']
|
||
<
|
||
*airline-whitespace*
|
||
* enable/disable detection of whitespace errors. >
|
||
let g:airline#extensions#whitespace#enabled = 1
|
||
<
|
||
* customize the whitespace symbol. >
|
||
let g:airline#extensions#whitespace#symbol = '!'
|
||
<
|
||
* configure which whitespace checks to enable. >
|
||
let g:airline#extensions#whitespace#checks = [ 'indent', 'trailing' ]
|
||
<
|
||
* configure whether a message should be displayed. >
|
||
let g:airline#extensions#whitespace#show_message = 1
|
||
<
|
||
* configure the formatting of the warning messages. >
|
||
let g:airline#extensions#whitespace#trailing_format = 'trailing[%s]'
|
||
let g:airline#extensions#whitespace#mixed_indent_format = 'mixed-indent[%s]'
|
||
<
|
||
*airline-ctrlp*
|
||
ctrlp <https://github.com/kien/ctrlp.vim>
|
||
|
||
* configure which mode colors should ctrlp window use (takes effect
|
||
only if the active airline theme doesn't define ctrlp colors) >
|
||
let g:airline#extensions#ctrlp#color_template = 'insert' (default)
|
||
let g:airline#extensions#ctrlp#color_template = 'normal'
|
||
let g:airline#extensions#ctrlp#color_template = 'visual'
|
||
let g:airline#extensions#ctrlp#color_template = 'replace'
|
||
<
|
||
*airline-virtualenv*
|
||
|
||
virtualenv <https://github.com/jmcantrell/vim-virtualenv>
|
||
|
||
* enable/disable virtualenv integration >
|
||
let g:airline#extensions#virtualenv#enabled = 1
|
||
|
||
==============================================================================
|
||
FUNCREFS *airline-funcrefs*
|
||
|
||
vim-airline internally uses funcrefs to integrate with third party plugins,
|
||
and you can tap into this functionality to extend it for you needs.
|
||
|
||
*add_statusline_func*
|
||
The following is an example of how you can extend vim-airline to support a
|
||
new plugin. >
|
||
function! MyPlugin(...)
|
||
if &filetype == 'MyPluginFileType'
|
||
let w:airline_section_a = 'MyPlugin'
|
||
let w:airline_section_b = '%f'
|
||
let w:airline_section_c = '%{MyPlugin#function()}'
|
||
let g:airline_variable_referenced_in_statusline = 'foo'
|
||
endif
|
||
endfunction
|
||
call airline#add_statusline_func('MyPlugin')
|
||
<
|
||
*remove_statusline_func*
|
||
You can also remove a function as well, which is useful for when you want a
|
||
temporary override. >
|
||
call airline#remove_statusline_func('MyPlugin')
|
||
<
|
||
|
||
==============================================================================
|
||
PIPELINE *airline-pipeline*
|
||
|
||
Sometimes you want to do more than just use overrides. The statusline funcref
|
||
is invoked and passed a bunch of arguments. The first of these arguments is
|
||
the statusline builder. You can use this to build completely custom
|
||
statuslines to your liking. Here is an example: >
|
||
>
|
||
function! MyPlugin(...)
|
||
" first variable is the statusline builder
|
||
let builder = a:1
|
||
|
||
" build and set the statusline
|
||
" WARNING: the API for the builder is not finalized and may change
|
||
call builder.add_section('Normal', '%f')
|
||
call builder.add_section('WarningMsg', '%{getcwd()}')
|
||
call setwinvar(winnr(), '&statusline', builder.build())
|
||
|
||
return -1
|
||
endfunction
|
||
<
|
||
The second variable is the context, which is a dictionary containing various
|
||
values such as whether the statusline is active or not, and the window number.
|
||
>
|
||
context = {
|
||
'winnr': 'the window number for the statusline',
|
||
'active': 'whether the window is active or not',
|
||
}
|
||
<
|
||
|
||
*airline-pipeline-return-codes*
|
||
The pipeline accepts various return codes and can be used to determine the
|
||
next action. The following are the supported codes: >
|
||
0 the default, continue on with the next funcref
|
||
-1 do not modify the statusline
|
||
1 modify the statusline with the current contents of the builder
|
||
<
|
||
Note: Any value other than 0 will halt the pipeline and prevent the next
|
||
funcref from executing.
|
||
|
||
==============================================================================
|
||
WRITING EXTENSIONS *airline-writing-extensions*
|
||
|
||
The basic idea is that the statusline is rendered with a series of overrides.
|
||
For each section that the algorithm encounters, it will first check to see if
|
||
there is a window-local variable of the section. If it exists, the value will
|
||
be used, otherwise, the global variable of the section will be used. This
|
||
means it is possible to override only one or two sections of the statusline.
|
||
See |add_statusline_func| for an example of a simple extension.
|
||
|
||
For contributions into the plugin, here are the following guidelines:
|
||
|
||
1. For simple |&filetype| checks, they can be added directly into the
|
||
`extensions.vim` file.
|
||
|
||
2. Pretty much everything else should live as a separate file under the
|
||
`extensions/` directory.
|
||
|
||
a. Inside `extensions.vim`, add a check for some variable or command that
|
||
is always available (these must be defined in `plugin`, and _not_
|
||
`autoload` of the other plugin). If it exists, then initialize the
|
||
extension. This ensures that the extension is loaded if and only if the
|
||
user has the other plugin installed. Also, a check to
|
||
`airline#extensions#foo_plugin#enabled` should be performed to allow the
|
||
user to disable it.
|
||
|
||
b. Configuration variables for the extension should reside in the
|
||
extension, e.g. `g:airline#extensions#foo_plugin#bar_variable`.
|
||
|
||
See the source of |example.vim| for a working extension.
|
||
|
||
==============================================================================
|
||
WRITING THEMES *airline-themes*
|
||
|
||
Themes are written "close to the metal" -- you will need to know some basic
|
||
VimL syntax to write a theme, but if you've written in any programming
|
||
language before it will be easy to pick up.
|
||
|
||
The |dark.vim| theme fully documents this procedure and will guide you through
|
||
the process. The |jellybeans.vim| theme is another example of how to write a
|
||
theme, but instead of manually declaring colors, it extracts the values from
|
||
highlight groups.
|
||
|
||
==============================================================================
|
||
TROUBLESHOOTING *airline-troubleshooting*
|
||
|
||
Q. There are no colors.
|
||
A. You need to set up your terminal correctly. For more details, see
|
||
<http://vim.wikia.com/wiki/256_colors_in_vim>. Alternatively, if you want
|
||
to bypass the automatic detection of terminal colors, you can force Vim
|
||
into 256 color mode with this: >
|
||
set t_Co=256
|
||
<
|
||
Q. The statusline does not appear until I create a split.
|
||
A. This is the default setting of |laststatus|. If you want it to appear all
|
||
the time, add the following to your vimrc: >
|
||
set laststatus=2
|
||
<
|
||
Q. Powerline symbols are not showing up.
|
||
A. First, you must install patched powerline fonts. Second, you must enable
|
||
unicode in vim. >
|
||
set encoding=utf-8
|
||
<
|
||
Q. There is a pause when leaving insert mode.
|
||
A. Add the following to your vimrc. >
|
||
set ttimeoutlen=50
|
||
<
|
||
Q. The colors look a little off for some themes.
|
||
A. Certain themes are derived from the active colorscheme by extracting colors
|
||
from predefined highlight groups. These airline themes will look good for
|
||
their intended matching colorschemes, but will be hit or miss when loaded
|
||
with other colorschemes.
|
||
|
||
|
||
Solutions to other common problems can be found in the Wiki:
|
||
<https://github.com/bling/vim-airline/wiki/FAQ>
|
||
|
||
==============================================================================
|
||
CONTRIBUTIONS *airline-contributions*
|
||
|
||
Contributions and pull requests are welcome.
|
||
|
||
==============================================================================
|
||
LICENSE *airline-license*
|
||
|
||
MIT License. Copyright © 2013 Bailey Ling.
|
||
|
||
|
||
vim:tw=78:ts=8:ft=help:norl:
|