mirror of
https://github.com/vim-airline/vim-airline.git
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434 lines
17 KiB
Plaintext
434 lines
17 KiB
Plaintext
*airline.txt* Lean and mean statusline that's light as air
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_ _ _ _ ~
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__ _(_)_ __ ___ __ _(_)_ __| (_)_ __ ___ ~
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\ \ / / | '_ ` _ \ _____ / _` | | '__| | | '_ \ / _ \ ~
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\ V /| | | | | | |_____| (_| | | | | | | | | | __/ ~
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\_/ |_|_| |_| |_| \__,_|_|_| |_|_|_| |_|\___| ~
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~
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==============================================================================
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INTRODUCTION *airline*
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vim-airline is a fast and lightweight alternative to powerline, written
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in 100% vimscript with no outside dependencies.
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==============================================================================
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FEATURES *airline-features*
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* tiny core written with extensibility in mind.
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* integrates with many popular plugins.
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* looks good with regular fonts, and provides configuration points so you
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can use unicode or powerline symbols.
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* optimized for speed; it loads in under a millisecond.
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* fully customizable; if you know a little |statusline| syntax you can
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tweak it to your needs.
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* extremely easy to write themes.
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==============================================================================
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NAME *airline-name*
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Where did the name come from?
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I wrote this on an airplane, and since it's light as air it turned out to be a
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good name :-)
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==============================================================================
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CONFIGURATION *airline-configuration*
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There are a couple configuration values available (shown with their default
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values):
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* the separator used on the left side >
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let g:airline_left_sep='>'
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<
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* the separator used on the right side >
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let g:airline_right_sep='<'
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<
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* enable modified detection >
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let g:airline_detect_modified=1
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* enable paste detection >
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let g:airline_detect_paste=1
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<
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* enable iminsert detection >
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let g:airline_detect_iminsert=0
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<
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* determine whether inactive windows should have the left section collapsed to
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only the filename of that buffer. >
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let g:airline_inactive_collapse=1
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<
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* themes are automatically selected based on the matching colorscheme. this
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can be overridden by defining a value. >
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let g:airline_theme=
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<
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* if you want to patch the airline theme before it gets applied, you can
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supply the name of a function where you can modify the palette. >
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let g:airline_theme_patch_func = 'AirlineThemePatch'
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function! AirlineThemePatch(palette)
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if g:airline_theme == 'badwolf'
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for colors in values(a:palette.inactive)
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let colors[3] = 245
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endfor
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endif
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endfunction
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<
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* enable/disable usage of patched powerline font symbols >
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let g:airline_powerline_fonts=0
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<
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* define the set of text to display for each mode. >
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let g:airline_mode_map = {} " see source for the defaults
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" or copy paste the following into your vimrc for shortform text
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let g:airline_mode_map = {
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\ '__' : '-',
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\ 'n' : 'N',
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\ 'i' : 'I',
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\ 'R' : 'R',
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\ 'c' : 'C',
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\ 'v' : 'V',
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\ 'V' : 'V',
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\ '' : 'V',
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\ 's' : 'S',
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\ 'S' : 'S',
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\ '' : 'S',
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\ }
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<
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* define the set of filename match queries which excludes a window from having
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its statusline modified >
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let g:airline_exclude_filenames = [] " see source for current list
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<
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* define the set of filetypes which are excluded from having its window
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statusline modified >
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let g:airline_exclude_filetypes = [] " see source for current list
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<
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* defines whether the preview window should be excluded from have its window
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statusline modified (may help with plugins which use the preview window
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heavily) >
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let g:airline_exclude_preview = 0
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<
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==============================================================================
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COMMANDS *airline-commands*
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:AirlineTheme {theme-name} *:AirlineTheme*
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Displays or changes the current theme.
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:AirlineToggleWhitespace *:AirlineToggleWhitespace*
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Toggles whitespace detection.
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:AirlineToggle *:AirlineToggle*
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Toggles between the standard `statusline`
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==============================================================================
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CUSTOMIZATION *airline-customization*
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The following are some unicode symbols for customizing the left/right
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separators, as well as the powerline font glyths.
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>
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" unicode symbols
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let g:airline_left_sep = '»'
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let g:airline_left_sep = '▶'
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let g:airline_right_sep = '«'
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let g:airline_right_sep = '◀'
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let g:airline_symbols.linenr = '␊'
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let g:airline_symbols.linenr = ''
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let g:airline_symbols.linenr = '¶'
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let g:airline_symbols.branch = '⎇'
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let g:airline_symbols.paste = 'ρ'
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let g:airline_symbols.paste = 'Þ'
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let g:airline_symbols.paste = '∥'
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let g:airline_symbols.whitespace = 'Ξ'
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" powerline symbols
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let g:airline_left_sep = ''
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let g:airline_left_alt_sep = ''
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let g:airline_right_sep = ''
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let g:airline_right_alt_sep = ''
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let g:airline_symbols.branch = ''
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let g:airline_symbols.readonly = ''
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let g:airline_symbols.linenr = ''
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" old vim-powerline symbols
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let g:airline_left_sep = '⮀'
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let g:airline_left_alt_sep = '⮁'
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let g:airline_right_sep = '⮂'
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let g:airline_right_alt_sep = '⮃'
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let g:airline_symbols.branch = '⭠'
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let g:airline_symbols.readonly = '⭤'
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let g:airline_symbols.linenr = '⭡'
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<
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For more intricate customizations, you can replace the predefined sections
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with the usual statusline syntax.
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Note: Many of these settings can also be controlled with |airline-configuration|
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variables, which is useful for sections which by default host more than one
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extension.
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>
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variable names default contents
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----------------------------------------------------------------------------
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let g:airline_section_a (the mode/paste indicator)
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let g:airline_section_b (the fugitive/lawrencium branch indicator)
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let g:airline_section_c (bufferline or filename)
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let g:airline_section_gutter (readonly, csv)
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let g:airline_section_x (tagbar, virtualenv, filetype)
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let g:airline_section_y (fileencoding, fileformat)
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let g:airline_section_z (percentage, line number, column number)
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let g:airline_section_warning (syntastic, whitespace)
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" here is an example of how you could replace the branch indicator with
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" the current working directory, followed by the filename.
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let g:airline_section_b = '%{getcwd()}'
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let g:airline_section_c = '%t'
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<
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==============================================================================
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EXTENSIONS *airline-extensions*
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Most extensions are enabled by default and lazily loaded when the
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corresponding plugin (if any) is detected.
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*airline-default*
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The default extension understands all of the `g:` variables in the
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|airline-configuration| section, however it also has some more fine-tuned
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configuration values that you can use.
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* control which sections get truncated and at what width. >
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let g:airline#extensions#default#section_truncate_width = {
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\ 'b': 88,
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\ 'x': 60,
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\ 'y': 88,
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\ 'z': 45,
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\ })
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<
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*airline-branch*
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fugitive.vim <https://github.com/tpope/vim-fugitive>
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lawrencium <https://bitbucket.org/ludovicchabant/vim-lawrencium>
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* enable/disable fugitive/lawrencium integration >
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let g:airline#extensions#branch#enabled = 1
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<
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* change the text for when no branch is detected >
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let g:airline#extensions#branch#empty_message = ''
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<
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*airline-syntastic*
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syntastic <https://github.com/scrooloose/syntastic>
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* enable/disable syntastic integration >
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let g:airline#extensions#syntastic#enabled = 1
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<
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*airline-tagbar*
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tagbar <https://github.com/majutsushi/>
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* enable/disable tagbar integration >
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let g:airline#extensions#tagbar#enabled = 1
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<
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*airline-csv*
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csv.vim <https://github.com/chrisbra/csv.vim>
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* enable/disable csv integration for displaying the current column. >
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let g:airline#extensions#csv#enabled = 1
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<
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* change how columns are displayed. >
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let g:airline#extensions#csv#column_display = 'Number' (default)
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let g:airline#extensions#csv#column_display = 'Name'
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<
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*airline-hunks*
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vim-gitgutter <https://github.com/airblade/vim-gitgutter>
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vim-signify <https://github.com/mhinz/vim-signify>
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* enable/disable showing a summary of changed hunks under source control.
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let g:airline#extensions#hunks#enabled = 1
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<
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* enable/disable showing only non-zero hunks. >
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let g:airline#extensions#hunks#non_zero_only = 0
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<
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* set hunk count symbols. >
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let g:airline#extensions#hunks#hunk_symbols = ['+', '~', '-']
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<
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*airline-whitespace*
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* enable/disable detection of whitespace errors. >
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let g:airline#extensions#whitespace#enabled = 1
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<
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* customize the whitespace symbol. >
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let g:airline#extensions#whitespace#symbol = '!'
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<
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* configure which whitespace checks to enable. >
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let g:airline#extensions#whitespace#checks = [ 'indent', 'trailing' ]
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<
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* configure whether a message should be displayed. >
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let g:airline#extensions#whitespace#show_message = 1
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<
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* configure the formatting of the warning messages. >
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let g:airline#extensions#whitespace#trailing_format = 'trailing[%s]'
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let g:airline#extensions#whitespace#mixed_indent_format = 'mixed-indent[%s]'
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<
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*airline-ctrlp*
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ctrlp <https://github.com/kien/ctrlp.vim>
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* configure which mode colors should ctrlp window use (takes effect
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only if the active airline theme doesn't define ctrlp colors) >
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let g:airline#extensions#ctrlp#color_template = 'insert' (default)
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let g:airline#extensions#ctrlp#color_template = 'normal'
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let g:airline#extensions#ctrlp#color_template = 'visual'
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let g:airline#extensions#ctrlp#color_template = 'replace'
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<
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*airline-virtualenv*
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virtualenv <https://github.com/jmcantrell/vim-virtualenv>
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* enable/disable virtualenv integration >
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let g:airline#extensions#virtualenv#enabled = 1
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==============================================================================
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FUNCREFS *airline-funcrefs*
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vim-airline internally uses funcrefs to integrate with third party plugins,
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and you can tap into this functionality to extend it for you needs.
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*add_statusline_func*
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The following is an example of how you can extend vim-airline to support a
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new plugin. >
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function! MyPlugin(...)
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if &filetype == 'MyPluginFileType'
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let w:airline_section_a = 'MyPlugin'
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let w:airline_section_b = '%f'
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let w:airline_section_c = '%{MyPlugin#function()}'
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let g:airline_variable_referenced_in_statusline = 'foo'
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endif
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endfunction
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call airline#add_statusline_func('MyPlugin')
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<
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*remove_statusline_func*
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You can also remove a function as well, which is useful for when you want a
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temporary override. >
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call airline#remove_statusline_func('MyPlugin')
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<
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==============================================================================
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PIPELINE *airline-pipeline*
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Sometimes you want to do more than just use overrides. The statusline funcref
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is invoked and passed a bunch of arguments. The first of these arguments is
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the statusline builder. You can use this to build completely custom
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statuslines to your liking. Here is an example: >
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>
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function! MyPlugin(...)
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" first variable is the statusline builder
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let builder = a:1
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" build and set the statusline
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" WARNING: the API for the builder is not finalized and may change
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call builder.add_section('Normal', '%f')
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call builder.add_section('WarningMsg', '%{getcwd()}')
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call setwinvar(winnr(), '&statusline', builder.build())
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return -1
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endfunction
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<
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The second variable is the context, which is a dictionary containing various
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values such as whether the statusline is active or not, and the window number.
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>
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context = {
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'winnr': 'the window number for the statusline',
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'active': 'whether the window is active or not',
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}
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<
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*airline-pipeline-return-codes*
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The pipeline accepts various return codes and can be used to determine the
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next action. The following are the supported codes: >
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0 the default, continue on with the next funcref
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-1 do not modify the statusline
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1 modify the statusline with the current contents of the builder
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<
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Note: Any value other than 0 will halt the pipeline and prevent the next
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funcref from executing.
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==============================================================================
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WRITING EXTENSIONS *airline-writing-extensions*
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The basic idea is that the statusline is rendered with a series of overrides.
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For each section that the algorithm encounters, it will first check to see if
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there is a window-local variable of the section. If it exists, the value will
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be used, otherwise, the global variable of the section will be used. This
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means it is possible to override only one or two sections of the statusline.
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See |add_statusline_func| for an example of a simple extension.
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For contributions into the plugin, here are the following guidelines:
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1. For simple |&filetype| checks, they can be added directly into the
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`extensions.vim` file.
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2. Pretty much everything else should live as a separate file under the
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`extensions/` directory.
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a. Inside `extensions.vim`, add a check for some variable or command that
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is always available (these must be defined in `plugin`, and _not_
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`autoload` of the other plugin). If it exists, then initialize the
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extension. This ensures that the extension is loaded if and only if the
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user has the other plugin installed. Also, a check to
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`airline#extensions#foo_plugin#enabled` should be performed to allow the
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user to disable it.
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b. Configuration variables for the extension should reside in the
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extension, e.g. `g:airline#extensions#foo_plugin#bar_variable`.
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See the source of |example.vim| for a working extension.
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==============================================================================
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WRITING THEMES *airline-themes*
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Themes are written "close to the metal" -- you will need to know some basic
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VimL syntax to write a theme, but if you've written in any programming
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language before it will be easy to pick up.
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The |dark.vim| theme fully documents this procedure and will guide you through
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the process. The |jellybeans.vim| theme is another example of how to write a
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theme, but instead of manually declaring colors, it extracts the values from
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highlight groups.
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==============================================================================
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TROUBLESHOOTING *airline-troubleshooting*
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Q. There are no colors.
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A. You need to set up your terminal correctly. For more details, see
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<http://vim.wikia.com/wiki/256_colors_in_vim>. Alternatively, if you want
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to bypass the automatic detection of terminal colors, you can force Vim
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into 256 color mode with this: >
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set t_Co=256
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<
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Q. The statusline does not appear until I create a split.
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A. This is the default setting of |laststatus|. If you want it to appear all
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the time, add the following to your vimrc: >
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set laststatus=2
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<
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Q. Powerline symbols are not showing up.
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A. First, you must install patched powerline fonts. Second, you must enable
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unicode in vim. >
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set encoding=utf-8
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<
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Q. There is a pause when leaving insert mode.
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A. Add the following to your vimrc. >
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set ttimeoutlen=50
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<
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Q. The colors look a little off for some themes.
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A. Certain themes are derived from the active colorscheme by extracting colors
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from predefined highlight groups. These airline themes will look good for
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their intended matching colorschemes, but will be hit or miss when loaded
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with other colorschemes.
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Solutions to other common problems can be found in the Wiki:
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<https://github.com/bling/vim-airline/wiki/FAQ>
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==============================================================================
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CONTRIBUTIONS *airline-contributions*
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Contributions and pull requests are welcome.
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==============================================================================
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LICENSE *airline-license*
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MIT License. Copyright © 2013 Bailey Ling.
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vim:tw=78:ts=8:ft=help:norl:
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