Update manager

autoload/SpaceVim/api/vim/compatible.vim

@@ -1,6 +1,7 @@
 function! SpaceVim#api#vim#compatible#get() abort
   return map({
         \ 'execute' : '',
+        \ 'system' : '',
         \ },
         \ "function('s:' . v:key)"
         \ )
@@ -24,4 +25,20 @@ function! s:execute(cmd, ...) abort
   return output
 endfunction
 
+if has('nvim')
+  function! s:system(cmd, ...) abort
+    return a:0 == 0 ? system(a:cmd) : system(a:cmd, a:1)
+  endfunction
+else
+  function! s:system(cmd, ...) abort
+    if type(a:cmd) == 3
+      let cmd = map(a:cmd, 'shellescape(v:val)')
+      let cmd = join(cmd, ' ')
+      return a:0 == 0 ? system(cmd) : system(cmd, a:1)
+    else
+      return a:0 == 0 ? system(a:cmd) : system(a:cmd, a:1)
+    endif
+  endfunction
+endif
+
 " vim:set et sw=2 cc=80:

autoload/SpaceVim/plugins/manager.vim

@@ -6,6 +6,8 @@
 " License: MIT license
 "=============================================================================
 
+" Load SpaceVim api
+let s:VIM_CO = SpaceVim#api#import('vim#compatible')
 " install plugin manager 
 function! s:install_manager() abort
     " Fsep && Psep
@@ -23,18 +25,14 @@ function! s:install_manager() abort
                     \ . 'neobundle.vim'. s:Fsep. 'README.md')
             let g:spacevim_neobundle_installed = 1
         else
-            if executable('git')
+            if s:need_cmd('git')
-                exec '!git clone '
+                call s:VIM_CO.system([
-                            \ .'https://github.com/'
+                            \ 'git',
-                            \ .'Shougo/neobundle.vim'
+                            \ 'clone',
-                            \ . ' '
+                            \ 'https://github.com/Shougo/neobundle.vim',
-                            \ . fnameescape(g:spacevim_plugin_bundle_dir)
+                            \ expand(g:spacevim_plugin_bundle_dir) . 'neobundle.vim'
-                            \ . 'neobundle.vim'
+                            \ ])
                 let g:spacevim_neobundle_installed = 1
-            else
-                echohl WarningMsg
-                echom 'You need install git!'
-                echohl None
             endif
         endif
         exec 'set runtimepath+='
@@ -48,16 +46,16 @@ function! s:install_manager() abort
                     \ s:Fsep))
             let g:spacevim_dein_installed = 1
         else
-            if executable('git')
+            if s:need_cmd('git')
-                exec '!git clone https://github.com/Shougo/dein.vim "'
+                call s:VIM_CO.system([
-                            \ . expand(g:spacevim_plugin_bundle_dir)
+                            \ 'git',
+                            \ 'clone',
+                            \ 'https://github.com/Shougo/dein.vim',
+                            \ expand(g:spacevim_plugin_bundle_dir)
                             \ . join(['repos', 'github.com',
                             \ 'Shougo', 'dein.vim"'], s:Fsep)
+                            \ ])
                 let g:spacevim_dein_installed = 1
-            else
-                echohl WarningMsg
-                echom 'You need install git!'
-                echohl None
             endif
         endif
         exec 'set runtimepath+='. fnameescape(g:spacevim_plugin_bundle_dir)
@@ -84,3 +82,14 @@ function! s:install_manager() abort
         exec 'set runtimepath+=~/.cache/vim-plug/'
     endif
 endf
+
+function! s:need_cmd(cmd) abort
+    if executable(a:cmd)
+        return 1
+    else
+        echohl WarningMsg
+        echom '[SpaceVim] [plugin manager] You need install ' . a:cmd . '!'
+        echohl None
+        return 0
+    endif
+endfunction