feat(ctrlg): add ctrl-g key binding to display project info

autoload/SpaceVim/default.vim

@@ -231,6 +231,11 @@ function! SpaceVim#default#keyBindings() abort
   " Start new line
   inoremap <S-Return> <C-o>o
 
+  if maparg('<c-g>', 'n') == ''
+    nnoremap <silent> <c-g> :<c-u>call SpaceVim#plugins#ctrlg#display()<cr>
+  endif
+
+
   " Improve scroll, credits: https://github.com/Shougo
   nnoremap <expr> zz (winline() == (winheight(0)+1) / 2) ?
         \ 'zt' : (winline() == &scrolloff + 1) ? 'zb' : 'zz'

autoload/SpaceVim/plugins/ctrlg.vim

@@ -0,0 +1,41 @@
+"=============================================================================
+" ctrlg.vim --- display info via Ctrl-g
+" Copyright (c) 2016-2019 Wang Shidong & Contributors
+" Author: Wang Shidong < wsdjeg@outlook.com >
+" URL: https://spacevim.org
+" License: GPLv3
+"=============================================================================
+if exists('s:loaded')
+  finish
+endif
+let s:loaded = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+let s:win  = has("win32") || has("win64") || has("win16")
+let s:lang = exists("$LANG") ? tolower($LANG[:1]) : 'en'
+
+function! SpaceVim#plugins#ctrlg#display() abort
+  
+  let pwd = getcwd()
+
+  if isdirectory('.git')
+    let project_name = printf('[%s]', fnamemodify(pwd, ':t'))
+  else
+    let project_name = ''
+  endif
+
+  let file = fnamemodify(expand('%'), '.')
+
+  if !empty(project_name)
+    echohl Constant   | echo project_name
+  endif
+  echohl WarningMsg | echon "  >>  "
+  echohl Special    | echon pwd
+  echohl WarningMsg | echon "  >>  "
+  echohl Directory  | echon file
+endfun
+
+let &cpo = s:save_cpo
+unlet s:save_cpo

docs/documentation.md

@@ -73,6 +73,7 @@ description: "General documentation about how to use SpaceVim, including the qui
     - [Commands starting with `z`](#commands-starting-with-z)
 - [Advanced usage](#advanced-usage)
   - [Managing projects](#managing-projects)
+    - [Show project info on cmdline](#show-project-info-on-cmdline)
     - [Searching files in project](#searching-files-in-project)
     - [Custom alternate file](#custom-alternate-file)
   - [Bookmarks management](#bookmarks-management)
@@ -1955,6 +1956,10 @@ Project manager commands start with `p`:
 | ------------ | ----------------------------------------------------- |
 | `SPC p '`    | open a shell in project’s root (need the shell layer) |
 
+#### Show project info on cmdline
+
+By default the key binding `Ctrl-g` will display the information of current project on command line.
+
 #### Searching files in project
 
 | Key Bindings         | Descriptions                             |