Add os fileformat icon

autoload/SpaceVim.vim

@@ -186,6 +186,9 @@ let g:spacevim_buffer_index_type = 0
 " Enable/Disable tabline filetype icon. default is 0.
 let g:spacevim_enable_tabline_filetype_icon = 0
 ""
+" Enable/Disable os fileformat icon. default is 0.
+let g:spacevim_enable_os_fileformat_icon = 0
+""
 " Plugin groups to be loaded.
 " >
 "    let g:spacevim_plugin_groups = ['core', 'lang']

autoload/SpaceVim/api/system.vim

@@ -1,3 +1,4 @@
+scriptencoding utf-8
 let s:system = {}
 
 let s:system['isWindows'] = has('win16') || has('win32') || has('win64')
@@ -6,6 +7,52 @@ let s:system['isLinux'] = has('unix') && !has('macunix') && !has('win32unix')
 
 let s:system['isOSX'] = has('macunix')
 
+function! s:isDarwin() abort
+    if exists('s:is_darwin')
+        return s:is_darwin
+    endif
+
+    if has('macunix')
+        let s:is_darwin = 1
+        return s:is_darwin
+    endif
+
+    if ! has('unix')
+        let s:is_darwin = 0
+        return s:is_darwin
+    endif
+
+    if system('uname -s') ==# "Darwin\n"
+        let s:is_darwin = 1
+    else
+        let s:is_darwin = 0
+    endif
+
+    return s:is_darwin
+endfunction
+
+let s:system['isDarwin'] = function('s:isDarwin')
+
+function! s:fileformat() abort
+    let fileformat = ''
+
+    if &fileformat ==? 'dos'
+        let fileformat = ''
+    elseif &fileformat ==? 'unix'
+        if s:isDarwin()
+            let fileformat = ''
+        else
+            let fileformat = ''
+        endif
+    elseif &fileformat ==? 'mac'
+        let fileformat = ''
+    endif
+
+    return fileformat
+endfunction
+
+let s:system['fileformat'] = function('s:fileformat')
+
 
 function! SpaceVim#api#system#get() abort
     return deepcopy(s:system)

config/plugins/vim-airline.vim

@@ -79,3 +79,7 @@ let g:airline#extensions#tabline#tab_nr_type= 2
 let g:airline#extensions#tabline#show_tab_type = 1
 let g:airline#extensions#tabline#buffers_label = 'BUFFERS'
 let g:airline#extensions#tabline#tabs_label = 'TABS'
+if g:spacevim_enable_os_fileformat_icon
+    let s:sys = SpaceVim#api#import('system')
+    let g:airline_section_y = " %{&fenc . ' ' . SpaceVim#api#import('system').fileformat()} "
+endif

doc/SpaceVim.txt

@@ -213,6 +213,9 @@ Set SpaceVim buffer index type, default is 0.
                                      *g:spacevim_enable_tabline_filetype_icon*
 Enable/Disable tabline filetype icon. default is 0.
 
+                                        *g:spacevim_enable_os_fileformat_icon*
+Enable/Disable os fileformat icon. default is 0.
+
                                                     *g:spacevim_plugin_groups*
 Plugin groups to be loaded.
 >