Add SPVersion command

autoload/SpaceVim/commands.vim

@@ -4,6 +4,11 @@ function! SpaceVim#commands#load() abort
   " of layer names.
   command! -nargs=+ SPLayer call SpaceVim#layers#load(<f-args>)
   ""
+  " Print the version of SpaceVim.  The following lines contain information
+  " about which features were enabled.  When there is a preceding '+', the
+  " feature is included, when there is a '-' it is excluded.
+  command! -nargs=0 SPVersion call SpaceVim#commands#version()
+  ""
   " Set or check SpaceVim option. {opt} should be the option name of
   " spacevim, This command will use [value] as the value of option name.
   command! -nargs=+ SPSet call SpaceVim#options#set(<f-args>)
@@ -42,4 +47,122 @@ function! SpaceVim#commands#config(...) abort
 endfunction
 
 
+function! SpaceVim#commands#version() abort
+  echo 'SpaceVim ' . g:spacevim_version . '-' . "\n" .
+        \ "\n" .
+        \ 'Optional features included (+) or not (-):' . "\n"
+        \ s:check_features([
+        \ 'tui',
+        \ 'jemalloc',
+        \ 'acl',
+        \ 'arabic',
+        \ 'autocmd',
+        \ 'browse',
+        \ 'byte_offset',
+        \ 'cindent',
+        \ 'clientserver',
+        \ 'clipboard',
+        \ 'cmdline_compl',
+        \ 'cmdline_hist',
+        \ 'cmdline_info',
+        \ 'comments',
+        \ 'conceal',
+        \ 'cscope',
+        \ 'cursorbind',
+        \ 'cursorshape',
+        \ 'debug',
+        \ 'dialog_gui',
+        \ 'dialog_con',
+        \ 'dialog_con_gui',
+        \ 'digraphs',
+        \ 'eval',
+        \ 'ex_extra',
+        \ 'extra_search',
+        \ 'farsi',
+        \ 'file_in_path',
+        \ 'find_in_path',
+        \ 'folding',
+        \ 'gettext',
+        \ 'iconv',
+        \ 'iconv/dyn',
+        \ 'insert_expand',
+        \ 'jumplist',
+        \ 'keymap',
+        \ 'langmap',
+        \ 'libcall',
+        \ 'linebreak',
+        \ 'lispindent',
+        \ 'listcmds',
+        \ 'localmap',
+        \ 'menu',
+        \ 'mksession',
+        \ 'modify_fname',
+        \ 'mouse',
+        \ 'mouseshape',
+        \ 'multi_byte',
+        \ 'multi_byte_ime',
+        \ 'multi_lang',
+        \ 'path_extra',
+        \ 'persistent_undo',
+        \ 'postscript',
+        \ 'printer',
+        \ 'profile',
+        \ 'python',
+        \ 'python3',
+        \ 'quickfix',
+        \ 'reltime',
+        \ 'rightleft',
+        \ 'scrollbind',
+        \ 'shada',
+        \ 'signs',
+        \ 'smartindent',
+        \ 'startuptime',
+        \ 'statusline',
+        \ 'syntax',
+        \ 'tablineat',
+        \ 'tag_binary',
+        \ 'tag_old_static',
+        \ 'tag_any_white',
+        \ 'termguicolors',
+        \ 'terminfo',
+        \ 'termresponse',
+        \ 'textobjects',
+        \ 'tgetent',
+        \ 'timers',
+        \ 'title',
+        \ 'toolbar',
+        \ 'user_commands',
+        \ 'vertsplit',
+        \ 'virtualedit',
+        \ 'visual',
+        \ 'visualextra',
+        \ 'vreplace',
+        \ 'wildignore',
+        \ 'wildmenu',
+        \ 'windows',
+        \ 'writebackup',
+        \ 'xim',
+        \ 'xfontset',
+        \ 'xpm',
+        \ 'xpm_w32',
+        \ ])
+endfunction
+
+function! s:check_features(features) abort
+  let flist = map(a:features, "(has(v:val) ? '+' : '-') . v:val")
+  let rst = '    '
+  let id = 1
+  for f in flist
+    let rst .= f . repeat(' ', 20 - len(f))
+    if id == 3
+      let rst .= "\n    "
+      let id = 1
+    else
+      let id += 1
+    endif
+  endfor
+  return substitute(rst, '\n*\s*$', '', 'g')
+endfunction
+
+
 " vim:set et sw=2 cc=80:

doc/SpaceVim.txt

@@ -276,6 +276,11 @@ COMMANDS                                                   *SpaceVim-commands*
   Load exist layer, {layers} can be a string of a layer name, or a list of
   layer names.
 
+:SPVersion                                                        *:SPVersion*
+  Print the version of SpaceVim.  The following lines contain information
+  about which features were enabled.  When there is a preceding '+', the
+  feature is included, when there is a '-' it is excluded.
+
 :SPSet {opt} [value]                                                  *:SPSet*
   Set or check SpaceVim option. {opt} should be the option name of spacevim,
   This command will use [value] as the value of option name.