Add api

autoload/SpaceVim.vim

@@ -66,7 +66,7 @@ let g:spacevim_vim_plug_installed      = 0
 " >
 "   let g:spacevim_plugin_bundle_dir = '~/.cache/vimplugs'
 " <
-let g:spacevim_plugin_bundle_dir       = $HOME. join(['', '.cache', 'vimfiles', ''], '/')
+let g:spacevim_plugin_bundle_dir       = $HOME. join(['', '.cache', 'vimfiles', ''], SpaceVim#api#import('file').separator)
 ""
 " Disable/Enable realtime leader guide, by default it is 0.
 " to enable this feature:

autoload/SpaceVim/api.vim

@@ -0,0 +1,8 @@
+function! SpaceVim#api#import(name) abort
+    let p = {}
+    try
+        let p = SpaceVim#api#{a:name}#get()
+    catch /^Vim\%((\a\+)\)\=:E117/
+    endtry
+    return p
+endfunction

autoload/SpaceVim/api/file.vim

@@ -0,0 +1,15 @@
+let s:file = {}
+let s:system = SpaceVim#api#import('system')
+
+if s:system.isWindows
+    let s:file['separator'] = '\'
+else
+    let s:file['separator'] = '/'
+endif
+
+function! SpaceVim#api#file#get() abort
+    return deepcopy(s:file)
+endfunction
+
+
+

autoload/SpaceVim/api/system.vim

@@ -0,0 +1,12 @@
+let s:system = {}
+
+let s:system['isWindows'] = has('win16') || has('win32') || has('win64')
+
+let s:system['isLinux'] = has('unix') && !has('macunix') && !has('win32unix')
+
+let s:system['isOSX'] = has('macunix')
+
+
+function! SpaceVim#api#system#get() abort
+    return deepcopy(s:system)
+endfunction