feat(mapping): add SPC f R to rename current file

autoload/SpaceVim/layers/core.vim

@@ -153,6 +153,9 @@ function! SpaceVim#layers#core#config() abort
         \  ]
         \ ]
         \ , 1)
+  call SpaceVim#mapping#space#def('nnoremap', ['f', 'R'], 'call call('
+        \ . string(s:_function('s:rename_current_file')) . ', [])',
+        \ 'rename_current_file', 1)
   call SpaceVim#mapping#space#def('nnoremap', ['f', 'a'], 'call call('
         \ . string(s:_function('s:save_as_new_file')) . ', [])',
         \ 'save-as-new-file', 1)
@@ -975,6 +978,34 @@ augroup FileExplorer
 augroup END
 
 
+function! s:rename_current_file() abort
+  let current_fname = bufname()
+  if empty(current_fname)
+    echo 'can not rename empty filename!'
+    return
+  endif
+  let input = input('Rename to: ', fnamemodify(current_fname, ':p'), 'file')
+  noautocmd normal! :
+  if !empty(input)
+    exe 'silent! file ' . input
+    exe 'silent! w '
+    call delete(current_fname)
+    if v:errmsg !=# ''
+      echohl ErrorMsg
+      echo  v:errmsg
+      echohl None
+    else
+      echohl Delimiter
+      echo  fnamemodify(bufname(), ':.:gs?[\\/]?/?') . ' Renamed'
+      echohl None
+    endif
+  else
+    echo 'canceled!'
+  endif
+
+  
+endfunction
+
 function! s:save_as_new_file() abort
   let current_fname = bufname()
   if !empty(current_fname)

docs/cn/documentation.md

@@ -1365,7 +1365,7 @@ SpaceVim 选项 `window_leader` 的值来设为其它按键：
 | `SPC f f`            | 在当前文件所在文件夹搜索文件                           |
 | `SPC f F`            | 在当前文件所在的文件夹搜索光标下的文件                 |
 | `SPC f o`            | 代开文件树，并定位到当前文件                           |
-| `SPC f R`            | rename the current file(TODO)                          |
+| `SPC f R`            | 重命名当前文件                                         |
 | `SPC f s` / `Ctrl-s` | 保存文件 (:w)                                          |
 | `SPC f a`            | 另存为新的文件                                         |
 | `SPC f W`            | 使用管理员模式保存                                     |

docs/documentation.md

@@ -1437,7 +1437,7 @@ Files manipulation commands (start with `f`):
 | `SPC f f`    | fuzzy find files in buffer directory                                    |
 | `SPC f F`    | fuzzy find cursor file in buffer directory                              |
 | `SPC f o`    | Find current file in file tree                                          |
-| `SPC f R`    | rename the current file(TODO)                                           |
+| `SPC f R`    | rename the current file                                                 |
 | `SPC f s`    | save a file                                                             |
 | `SPC f a`    | save as new file name                                                   |
 | `SPC f S`    | save all files                                                          |