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copied!<p>A variant of option 2 will work. If you have something like this:</p> <pre><code>app/assets/stylesheets/pancakes_house.css.less.erb </code></pre> <p>And you <code>require</code> it into your <code>application.css</code> file. Then <code>pancakes_house</code> goes through ERB first and that output goes through the LESS processor and whatever comes out of that goes into your CSS. Putting ERB inside your SCSS might feel a little odd but, hey, it'll work and get the job done without too much weirdness.</p> <p>So you should be able to get at the necessary methods to produce your cache-busting image paths through your ERB.</p> <p>I only tried this with a Less file but it should work with <code>.css.scss.erb</code> as well.</p> <hr> <p>As an aside, you can also add <a href="http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html" rel="nofollow">your own functions to SASS</a>:</p> <blockquote> <p>Methods in this module are accessible from the SassScript context. For example, you can write </p> <pre><code>$color = hsl(120deg, 100%, 50%) </code></pre> <p>and it will call <code>Sass::Script::Functions#hsl</code>.</p> </blockquote> <p>There are even some <a href="http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#adding_custom_functions" rel="nofollow">instructions on writing your own functions</a> a little further down in the manual. However, I'm not sure how to get Sprockets to load your <code>Sass::Script::Functions</code> patches so I can't call this a practical solution; someone with stronger Sprocket Fu than me might be able to make this approach work though and I'd call this more elegant than ERBified SCSS.</p>

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