Rails config.assets.precompile setting to process all CSS and JS files in app/assets

Question

I wish to precompile all the CSS and JS files in my project\'s app/assets folder. I do NOT want to precompile everything in vendor/assets or lib/assets, only th

Answer 1

I'm revisiting this post at the year 2017.

Our product is still heavily using RoR, we've been continuously modifying our precompile configurations by appending Rails.application.config.assets.precompile as we're adding new modules. Recently I was trying to optimize this by adding a regex pattern, I found that the following glob pattern works:

Rails.application.config.assets.precompile += %w(**/bundle/*.js)

However I still need to exclude certain modules, so I tried hard to use regex instead of glob.

Until I looked into sprockets source code: https://github.com/rails/sprockets-rails/blob/master/lib/sprockets/railtie.rb#L108 , I found that they're already using regex:

app.config.assets.precompile +=
  [LOOSE_APP_ASSETS, /(?:\/|\\|\A)application\.(css|js)$/]

So I change my code into:

Rails.application.config.assets.precompile +=
  [/^((?!my_excluded_module)\w)*\/bundle\/\w*\.js$/]

Which works well.