From 0966b693d9611598e2d915ca3cdae006d0f310c9 Mon Sep 17 00:00:00 2001
From: Bailey Ling <bling@live.ca>
Date: Tue, 3 Dec 2013 05:32:54 +0000
Subject: [PATCH] expose cleaner api to determine empty head.

---
 autoload/airline/extensions/branch.vim | 9 ++++++++-
 autoload/airline/extensions/hunks.vim  | 9 ++++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/autoload/airline/extensions/branch.vim b/autoload/airline/extensions/branch.vim
index 87a7069..2177f64 100644
--- a/autoload/airline/extensions/branch.vim
+++ b/autoload/airline/extensions/branch.vim
@@ -14,7 +14,7 @@ let s:empty_message = get(g:, 'airline#extensions#branch#empty_message',
       \ get(g:, 'airline_branch_empty_message', ''))
 let s:symbol = get(g:, 'airline#extensions#branch#symbol', g:airline_symbols.branch)
 
-function! airline#extensions#branch#get_head()
+function! airline#extensions#branch#head()
   let head = ''
 
   if s:has_fugitive && !exists('b:mercurial_dir')
@@ -42,6 +42,13 @@ function! airline#extensions#branch#get_head()
   endif
 
   return empty(head) || !s:check_in_path()
+        \ ? ''
+        \ : head
+endfunction
+
+function! airline#extensions#branch#get_head()
+  let head = airline#extensions#branch#head()
+  return empty(head)
         \ ? s:empty_message
         \ : printf('%s%s', empty(s:symbol) ? '' : s:symbol.(g:airline_symbols.space), head)
 endfunction
diff --git a/autoload/airline/extensions/hunks.vim b/autoload/airline/extensions/hunks.vim
index 644b817..9da481d 100644
--- a/autoload/airline/extensions/hunks.vim
+++ b/autoload/airline/extensions/hunks.vim
@@ -16,10 +16,13 @@ function! s:get_hunks_signify()
   return []
 endfunction
 
+function! s:is_branch_empty()
+  return get(g:, 'airline#extensions#branch#enabled', 1) && empty(airline#extensions#branch#head())
+endfunction
+
 function! s:get_hunks_gitgutter()
-  if !get(g:, 'gitgutter_enabled', 0) || airline#extensions#branch#get_head() ==
-    \ get(g:, 'airline#extensions#branch#empty_message', get(g:, 'airline_branch_empty_message', ''))
-      return ''
+  if !get(g:, 'gitgutter_enabled', 0) || s:is_branch_empty()
+    return ''
   endif
   return GitGutterGetHunkSummary()
 endfunction