Rails with Twitter Bootstrap: still serving an old asset

Question

Going nuts here. I'm developing a rails app, and I'm using the twitter-bootstrap-rails gem in order to include the Twitter Bootstrap styles in my app. This gem generates a file called 'bootstrap_and_overrides.css.less' in app/assets/stylesheets, which I have been using to modify some of the bootstrap variables and include my own CSS overrides.

Everything has been working fine until today. For some reason, the changes I am making to this file today are getting saved to the file, but Rails is still serving the old version of the file! I've searched and found no precompiled versions of the file anywhere (nothing in public/assets)...only the one in assets/stylesheets which I have been modifying. Everything looks fine as far as the directories within the app go, but then when I start the rails server, load the page, and use the element inspector to look at the stylesheets, it's using an old version of 'bootstrap_and_overrides.css.less' with rules that I have deleted. I've turned of the cache in my browser, and tried it in 4 different browsers too, so I'm pretty sure this isn't a result of browser caching.

The rails asset pipeline just seems to serving a version of the file that doesn't exist! Does anybody have any ideas why this might be happening?

Answer 1

Fixed it.

The asset pipeline was storing a cached version in tmp/cache.

I ran rake tmp:clear, which deleted all the files in there, and then rails served the version of *bootstrap_and_overrides.css.less* that I wanted.

Why the cached version suddenly stopped getting updated is beyond me. Arrghhhh!