Heroku not updating css for rails app

Question

I'm having trouble updating my rails app on heroku. I've gotten my app up but I tried to change my application.css file in /public/stylesheets/ but whenever I try to push to heroku, the CSS never changes. I tested these changes locally and they work just fine, I just can't figure out how to push them to heroku. I've tried pushing with git push heroku, heroku db:push, and heroku rake db:migrate but nothing works. Thanks for your help.

Answer 1

Each time you make changes on your CSS you need to run the following commands on the terminal:

$bundle exec rake assets:precompile
$git add . 
$git commit -m "msg" 
$git push heroku master

Answer 2

Remember that you have to commit the changes locally before you can push them.

If you do a git status, it should be clean.

If it's not (my prediction):

git commit -am "Your commit message"
git push heroku master

Answer 3

In my case it was because a previous developer had set up to do compiles locally instead of at deploy time. I had a manifest file that I needed to delete:

public/assets/manifest-<md5 hash>.json

Once I deleted that and pushed, heroku built my assets.