runtime(sass): Provide sass_recommended_style option

Author: tpope

runtime/ftplugin/sass.vim

@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	Sass
 " Maintainer:	Tim Pope <[email protected]>
-" Last Change:	2019 Dec 05
+" Last Change:	2023 Dec 28
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -23,6 +23,11 @@ if &filetype =~# '\<s[ac]ss]\>'
   let b:undo_ftplugin .= ' isk<'
 endif
 
+if get(g:, 'sass_recommended_style', 1)
+  setlocal shiftwidth=2 softtabstop=2 expandtab
+  let b:undo_ftplugin .= ' sw< sts< et<'
+endif
+
 let &l:define = '^\C\v\s*%(\@function|\@mixin|\=)|^\s*%(\$[[:alnum:]-]+:|[%.][:alnum:]-]+\s*%(\{|$))@='
 let &l:include = '^\s*@import\s\+\%(url(\)\=["'']\='
 

runtime/indent/sass.vim

@@ -1,14 +1,14 @@
 " Vim indent file
 " Language:	Sass
 " Maintainer:	Tim Pope <[email protected]>
-" Last Change:	2022 Mar 15
+" Last Change:	2023 Dec 28
 
 if exists("b:did_indent")
   finish
 endif
 let b:did_indent = 1
 
-setlocal autoindent sw=2 et
+setlocal autoindent
 setlocal indentexpr=GetSassIndent()
 setlocal indentkeys=o,O,*<Return>,<:>,!^F
 
@@ -26,10 +26,8 @@ function! GetSassIndent()
   let lnum = prevnonblank(v:lnum-1)
   let line = substitute(getline(lnum),'\s\+$','','')
   let cline = substitute(substitute(getline(v:lnum),'\s\+$','',''),'^\s\+','','')
-  let lastcol = strlen(line)
   let line = substitute(line,'^\s\+','','')
   let indent = indent(lnum)
-  let cindent = indent(v:lnum)
   if line !~ s:property && line !~ s:extend && cline =~ s:property
     return indent + shiftwidth()
   else