initial commit

.vim/autoload/airline/extensions/branch.vim

@@ -0,0 +1,122 @@
+" MIT License. Copyright (c) 2013-2014 Bailey Ling.
+" vim: et ts=2 sts=2 sw=2
+
+let s:has_fugitive = exists('*fugitive#head')
+let s:has_lawrencium = exists('*lawrencium#statusline')
+let s:has_vcscommand = get(g:, 'airline#extensions#branch#use_vcscommand', 0) && exists('*VCSCommandGetStatusLine')
+
+if !s:has_fugitive && !s:has_lawrencium && !s:has_vcscommand
+  finish
+endif
+
+let s:git_dirs = {}
+function! s:get_git_branch(path)
+  if has_key(s:git_dirs, a:path)
+    return s:git_dirs[a:path]
+  endif
+
+  let dir = fugitive#extract_git_dir(a:path)
+  if empty(dir)
+    let name = ''
+  else
+    try
+      let line = join(readfile(dir . '/HEAD'))
+      if strpart(line, 0, 16) == 'ref: refs/heads/'
+        let name = strpart(line, 16)
+      else
+        " raw commit hash
+        let name = strpart(line, 0, 7)
+      endif
+    catch
+      let name = ''
+    endtry
+  endif
+
+  let s:git_dirs[a:path] = name
+  return name
+endfunction
+
+function! airline#extensions#branch#head()
+  if exists('b:airline_head') && !empty(b:airline_head)
+    return b:airline_head
+  endif
+
+  let b:airline_head = ''
+  let found_fugitive_head = 0
+
+  if s:has_fugitive && !exists('b:mercurial_dir')
+    let b:airline_head = fugitive#head(7)
+    let found_fugitive_head = 1
+
+    if empty(b:airline_head) && !exists('b:git_dir')
+      let b:airline_head = s:get_git_branch(expand("%:p:h"))
+    endif
+  endif
+
+  if empty(b:airline_head)
+    if s:has_lawrencium
+      let b:airline_head = lawrencium#statusline()
+    endif
+  endif
+
+  if empty(b:airline_head)
+    if s:has_vcscommand
+      call VCSCommandEnableBufferSetup()
+      if exists('b:VCSCommandBufferInfo')
+        let b:airline_head = get(b:VCSCommandBufferInfo, 0, '')
+      endif
+    endif
+  endif
+
+  if empty(b:airline_head) || !found_fugitive_head && !s:check_in_path()
+    let b:airline_head = ''
+  endif
+
+  if exists("g:airline#extensions#branch#displayed_head_limit")
+    let w:displayed_head_limit = g:airline#extensions#branch#displayed_head_limit
+    if len(b:airline_head) > w:displayed_head_limit - 1
+      let b:airline_head = b:airline_head[0:w:displayed_head_limit - 1].'…'
+    endif
+  endif
+
+  return b:airline_head
+endfunction
+
+function! airline#extensions#branch#get_head()
+  let head = airline#extensions#branch#head()
+  let empty_message = get(g:, 'airline#extensions#branch#empty_message',
+      \ get(g:, 'airline_branch_empty_message', ''))
+  let symbol = get(g:, 'airline#extensions#branch#symbol', g:airline_symbols.branch)
+  return empty(head)
+        \ ? empty_message
+        \ : printf('%s%s', empty(symbol) ? '' : symbol.(g:airline_symbols.space), head)
+endfunction
+
+function! s:check_in_path()
+  if !exists('b:airline_branch_path')
+    let root = get(b:, 'git_dir', get(b:, 'mercurial_dir', ''))
+    let bufferpath = resolve(fnamemodify(expand('%'), ':p'))
+
+    if !filereadable(root) "not a file
+      " if .git is a directory, it's the old submodule format
+      if match(root, '\.git$') >= 0
+        let root = expand(fnamemodify(root, ':h'))
+      else
+        " else it's the newer format, and we need to guesstimate
+        let pattern = '\.git\(\\\|\/\)modules\(\\\|\/\)'
+        if match(root, pattern) >= 0
+          let root = substitute(root, pattern, '', '')
+        endif
+    endif
+
+    let b:airline_file_in_root = stridx(bufferpath, root) > -1
+  endif
+  return b:airline_file_in_root
+endfunction
+
+function! airline#extensions#branch#init(ext)
+  call airline#parts#define_function('branch', 'airline#extensions#branch#get_head')
+
+  autocmd BufReadPost * unlet! b:airline_file_in_root
+  autocmd CursorHold,ShellCmdPost,CmdwinLeave * unlet! b:airline_head
+endfunction