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fix vim-airline/fern does not update the branch name as you navigate through fern, and theme fern inactive windows too (#2698) 

Co-authored-by: Neil Lambert <nlambert@pm.me>
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Neil Lambert 2024-10-30 13:21:02 -04:00 committed by GitHub
parent 3ddcab16c2
commit 6c704f4b78
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1 changed files with 37 additions and 20 deletions
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57
autoload/airline/extensions/fern.vim
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@ -7,30 +7,47 @@ if !get(g:, 'loaded_fern', 0)
finish
endif
function! airline#extensions#fern#apply(...) abort
if (&ft =~# 'fern')
let spc = g:airline_symbols.space
let fri = fern#fri#parse(expand('%f'))
call a:1.add_section('airline_a', spc.'fern'.spc)
if exists('*airline#extensions#branch#get_head')
call a:1.add_section('airline_b', spc.'%{airline#extensions#branch#get_head()}'.spc)
else
call a:1.add_section('airline_b', '')
endif
if !(fri.authority =~# '^drawer')
let abspath = substitute(fri.path, 'file://', '', '')
call a:1.add_section('airline_c', spc.fnamemodify(abspath, ':~'))
call a:1.split()
if len(get(g:, 'fern#comparators', {}))
call a:1.add_section('airline_y', spc.'%{fern#comparator}'.spc)
endif
endif
function! airline#extensions#fern#apply_active(...) abort
" check if current buffer is both fern and active
if (&ft =~# 'fern') && a:2.active ==# '1'
call airline#extensions#fern#configure_sections(a:1, a:2)
return 1
endif
endfunction
function! airline#extensions#fern#apply_inactive(...) abort
" check if referenced buffer is both fern and inactive
if getbufvar(a:2.bufnr, '&filetype') ==# 'fern' && a:2.active ==# '0'
call airline#extensions#fern#configure_sections(a:1, a:2)
return 1
endif
endfunction
function! airline#extensions#fern#configure_sections(win, context) abort
let spc = g:airline_symbols.space
let fri = fern#fri#parse(bufname(a:context.bufnr))
let abspath = substitute(fri.path, 'file://', '', '')
call a:win.add_section('airline_a', spc.'fern'.spc)
if exists('*airline#extensions#branch#get_head')
" because fern navigation changes an internal _fri_ and not the working directory
" we need to give it some help so the branch name gets updated
execute 'lcd' abspath
call a:win.add_section('airline_b', spc.'%{airline#extensions#branch#get_head()}'.spc)
else
call a:win.add_section('airline_b', '')
endif
if !(fri.authority =~# '^drawer')
call a:win.add_section('airline_c', spc.fnamemodify(abspath, ':~'))
call a:win.split()
if len(get(g:, 'fern#comparators', {}))
call a:win.add_section('airline_y', spc.'%{fern#comparator}'.spc)
endif
endif
endfunction
function! airline#extensions#fern#init(ext) abort
let g:fern_force_overwrite_statusline = 0
call a:ext.add_statusline_func('airline#extensions#fern#apply')
call a:ext.add_statusline_func('airline#extensions#fern#apply_active')
call a:ext.add_inactive_statusline_func('airline#extensions#fern#apply_inactive')
endfunction