update vimrc statusline

.vimrc

@@ -76,21 +76,28 @@ set statusline+=%#NormalColor#%{(mode()=='n')?'\ \ NORMAL\ \ ':''}
 set statusline+=%#InsertColor#%{(mode()=='i')?'\ \ INSERT\ \ ':''}
 set statusline+=%#VisualColor#%{(mode()=='v')?'\ \ VISUAL\ \ ':''}
 set statusline+=%#CommandColor#%{(mode()=='c')?'\ \ COMMAND\ ':''}
-set statusline+=%#NormalColor#
 
-set statusline+=%f                           " file name
-set statusline+=[%{strlen(&fenc)?&fenc:'none'}, "file encoding
-set statusline+=%{&ff}] "file format
-set statusline+=%y      "filetype
-set statusline+=%h      "help file flag
-set statusline+=[%{getbufvar(bufnr('%'),'&mod')?'modified':'saved'}]
-"modified flag
-set statusline+=%r      "read only flag
-set statusline+=\ %=                        " align left
-set statusline+=Line:%l/%L[%p%%]            " line X of Y [percent of file]
-set statusline+=\ Col:%c                    " current column
-"set statusline+=\ Buf:%n                    " Buffer number
-set statusline+=\ [0x%B]\               " ASCII and byte code under cursor
+function! GitBranch()
+  return system("git rev-parse --abbrev-ref HEAD 2>/dev/null | tr -d '\n'")
+endfunction
+function! StatuslineGit()
+  let l:branchname = GitBranch()
+  return strlen(l:branchname) > 0?'  '.l:branchname.' ':''
+endfunction
+
+set statusline+=%#PmenuSel#                                   " Statusline format PmenuSel
+set statusline+=%{StatuslineGit()}                            " Git status
+set statusline+=%#NormalColor#                                " Statusline format NormalColor
+set statusline+=\ %f                                          " Filename
+set statusline+=\ %m                                          " Modified token
+set statusline+=%=                                            " Allign right
+set statusline+=%#CursorColumn#                               " Statusline format CursorColumn
+set statusline+=\ %y                                          " file type
+set statusline+=\ %{&fileencoding?&fileencoding:&encoding}    " encoding
+set statusline+=\[%{&fileformat}\]                            " file format
+set statusline+=\ %p%%                                        " line percent
+set statusline+=\ %l:%c                                       " line:column
+set statusline+=\ [0x%B]\                                     " ASCII hex code under cursor
 
 " Always show cursor position.
 "set ruler