Enable auto redraw indentLines

Trigger redraw after set shiftwidth or tabstop

after/plugin/indentLine.vim

@@ -254,7 +254,7 @@ endfunction
 "{{{1 function! s:ResetWidth(...)
 function! s:ResetWidth(...)
     if 0 < a:0
-        let &l:shiftwidth = a:1
+        noautocmd let &l:shiftwidth = a:1
     endif
 
     let b:indentLine_enabled = 1
@@ -262,6 +262,26 @@ function! s:ResetWidth(...)
     call s:IndentLinesEnable()
 endfunction
 
+"{{{1 function! s:AutoResetWidth()
+function! s:AutoResetWidth()
+
+    let l:enable = get(
+                    \ b:,
+                    \ 'indentLine_enabled',
+                    \ get(g:, 'indentLine_enabled', 1)
+                    \)
+
+    let g:indentLine_autoResetWidth = get(g:, 'indentLine_autoResetWidth', 1)
+
+    if l:enable != 1 || g:indentLine_autoResetWidth != 1
+        return
+    endif
+
+    let b:indentLine_enabled = l:enable
+    call s:IndentLinesDisable()
+    call s:IndentLinesEnable()
+endfunction
+
 "{{{1 function! s:Filter()
 function! s:Filter()
     if index(g:indentLine_fileTypeExclude, &filetype) != -1
@@ -400,6 +420,7 @@ augroup indentLine
         autocmd FileType * call s:Disable()
         if exists("##OptionSet")
             autocmd OptionSet diff call s:ToggleOnDiff()
+            autocmd OptionSet shiftwidth,tabstop noautocmd call s:AutoResetWidth()
         endif
         autocmd VimEnter * call s:VimEnter()
     else
@@ -412,6 +433,7 @@ augroup indentLine
         autocmd FileChangedShellPost * doautocmd indentLine BufUnload | call s:Setup()
         if exists("##OptionSet")
             autocmd OptionSet diff call s:ToggleOnDiff()
+            autocmd OptionSet shiftwidth,tabstop noautocmd call s:AutoResetWidth()
         endif
         autocmd VimEnter * call s:VimEnter()
     endif

doc/indentLine.txt

@@ -105,7 +105,7 @@ g:indentLine_fileTypeExclude                    *g:indentLine_fileTypeExclude*
                 e.g. let g:indentLine_fileTypeExclude = ['text', 'sh']
                 Default value is [] which means no file types are excluded.
 
-g:indentLine_bufTypeExclude                    *g:indentLine_bufTypeExclude*
+g:indentLine_bufTypeExclude                     *g:indentLine_bufTypeExclude*
                 This variable specify a list of buffer types.
                 When opening these types of buffers, the plugin is disabled
                 by default.
@@ -136,14 +136,14 @@ g:indentLine_setConceal
                 set this value to 0.
                 Default value is 1.
 
-g:indentLine_concealcursor                    *g:indentLine_concealcursor*
+g:indentLine_concealcursor                      *g:indentLine_concealcursor*
                 This variable toggles cursor lines behavior. If variable
                 exists and is empty, that is, set to '', then the indentlines
-                will not show up in the cursorline. 
+                will not show up in the cursorline.
                 See *concealcursor*.
                 Default value is 'inc'.
 
-g:indentLine_conceallevel                    *g:indentLine_conceallevel*
+g:indentLine_conceallevel                       *g:indentLine_conceallevel*
                 This variable toggles the concealing behavior.
                 See *conceallevel*.
                 Default value is '2'.
@@ -160,6 +160,12 @@ g:indentLine_leadingSpaceEnabled                *g:indentLine_leadingSpaceEnable
 g:indentLine_defaultGroup                       *g:indentLine_defaultGroup*
                 Specify a highlight group to use for default values
 				of g:indentLine_[bg]color_(term|gui)
+
+g:indentLine_autoResetWidth                     *g:indentLine_autoResetWidth*
+                Specify whether to auto redraw the indentLines after
+                'shiftwidth' or 'tabstop' change.
+                Default value is 1.
+
 ==============================================================================
 COMMANDS                                         *indentLine-commands*