140 lines
4 KiB
VimL
140 lines
4 KiB
VimL
" MIT License. Copyright (c) 2013-2015 Bailey Ling.
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" vim: et ts=2 sts=2 sw=2
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let s:has_fugitive = exists('*fugitive#head')
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let s:has_lawrencium = exists('*lawrencium#statusline')
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let s:has_vcscommand = get(g:, 'airline#extensions#branch#use_vcscommand', 0) && exists('*VCSCommandGetStatusLine')
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if !s:has_fugitive && !s:has_lawrencium && !s:has_vcscommand
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finish
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endif
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let s:head_format = get(g:, 'airline#extensions#branch#format', 0)
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if s:head_format == 1
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function! s:format_name(name)
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return fnamemodify(a:name, ':t')
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endfunction
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elseif type(s:head_format) == type('')
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function! s:format_name(name)
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return call(s:head_format, [a:name])
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endfunction
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else
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function! s:format_name(name)
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return a:name
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endfunction
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endif
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let s:git_dirs = {}
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function! s:get_git_branch(path)
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if has_key(s:git_dirs, a:path)
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return s:git_dirs[a:path]
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endif
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let dir = fugitive#extract_git_dir(a:path)
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if empty(dir)
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let name = ''
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else
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try
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let line = join(readfile(dir . '/HEAD'))
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if strpart(line, 0, 16) == 'ref: refs/heads/'
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let name = strpart(line, 16)
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else
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" raw commit hash
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let name = strpart(line, 0, 7)
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endif
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catch
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let name = ''
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endtry
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endif
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let s:git_dirs[a:path] = name
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return name
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endfunction
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function! airline#extensions#branch#head()
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if exists('b:airline_head') && !empty(b:airline_head)
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return b:airline_head
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endif
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let b:airline_head = ''
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let found_fugitive_head = 0
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if s:has_fugitive && !exists('b:mercurial_dir')
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let b:airline_head = fugitive#head(7)
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let found_fugitive_head = 1
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if empty(b:airline_head) && !exists('b:git_dir')
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let b:airline_head = s:get_git_branch(expand("%:p:h"))
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endif
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endif
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if empty(b:airline_head)
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if s:has_lawrencium
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let b:airline_head = lawrencium#statusline()
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endif
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endif
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if empty(b:airline_head)
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if s:has_vcscommand
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call VCSCommandEnableBufferSetup()
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if exists('b:VCSCommandBufferInfo')
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let b:airline_head = get(b:VCSCommandBufferInfo, 0, '')
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endif
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endif
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endif
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if empty(b:airline_head) || !found_fugitive_head && !s:check_in_path()
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let b:airline_head = ''
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endif
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let b:airline_head = s:format_name(b:airline_head)
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if exists("g:airline#extensions#branch#displayed_head_limit")
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let w:displayed_head_limit = g:airline#extensions#branch#displayed_head_limit
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if len(b:airline_head) > w:displayed_head_limit - 1
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let b:airline_head = b:airline_head[0:w:displayed_head_limit - 1].'…'
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endif
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endif
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return b:airline_head
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endfunction
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function! airline#extensions#branch#get_head()
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let head = airline#extensions#branch#head()
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let empty_message = get(g:, 'airline#extensions#branch#empty_message',
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\ get(g:, 'airline_branch_empty_message', ''))
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let symbol = get(g:, 'airline#extensions#branch#symbol', g:airline_symbols.branch)
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return empty(head)
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\ ? empty_message
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\ : printf('%s%s', empty(symbol) ? '' : symbol.(g:airline_symbols.space), head)
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endfunction
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function! s:check_in_path()
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if !exists('b:airline_branch_path')
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let root = get(b:, 'git_dir', get(b:, 'mercurial_dir', ''))
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let bufferpath = resolve(fnamemodify(expand('%'), ':p'))
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if !filereadable(root) "not a file
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" if .git is a directory, it's the old submodule format
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if match(root, '\.git$') >= 0
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let root = expand(fnamemodify(root, ':h'))
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else
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" else it's the newer format, and we need to guesstimate
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let pattern = '\.git\(\\\|\/\)modules\(\\\|\/\)'
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if match(root, pattern) >= 0
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let root = substitute(root, pattern, '', '')
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endif
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endif
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endif
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let b:airline_file_in_root = stridx(bufferpath, root) > -1
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endif
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return b:airline_file_in_root
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endfunction
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function! airline#extensions#branch#init(ext)
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call airline#parts#define_function('branch', 'airline#extensions#branch#get_head')
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autocmd BufReadPost * unlet! b:airline_file_in_root
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autocmd CursorHold,ShellCmdPost,CmdwinLeave * unlet! b:airline_head
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endfunction
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