When static files are deleted or switched off, localhost:3000 fails to update my CSS or load at all

I've encountered a problem with my Rails project after precompiling assets for deployment on Heroku. Despite following advice to delete the static file, the app now remains stuck in a buffering state and won't load. I've attempted setting config.serve_static_files to false, running rake assets clean, and even using dscacheutil -flushcache, all with no success.

Here is my development.rb file:

    Rails.application.configure do
      # Settings specified here will take precedence over those in config/application.rb.

      # In the development environment your application's code is reloaded on
      # every request. This slows down response time but is perfect for development
      # since you don't have to restart the web server when you make code changes.
      config.cache_classes = false

      # Do not eager load code on boot.
      config.eager_load = false

      # ... (remaining content of development.rb file here)
    end

Additionally, here is my production.rb file:

    Rails.application.configure do
      # Settings specified here will take precedence over those in config/application.rb.

      # Code is not reloaded between requests.
      config.cache_classes = true

      # Eager load code on boot. This eager loads most of Rails and
      # your application in memory, allowing both threaded web servers
      # and those relying on copy on write to perform better.
      # Rake tasks automatically ignore this option for performance.
      config.eager_load = true

      # ... (remaining content of production.rb file here)
    end

I'm really stuck and struggling to make any progress in this state. Any help would be greatly appreciated. Thank you

Answer №1

Did you attempt to execute the command rake assets:precompile?

Answer №2

Did you know:

rake assets:clean

If you want to remove all precompiled assets, a better option is to use rake assets:clobber.

This command actively deletes the files and folders in your /public/assets folder, allowing you to eliminate any leftover precompiled assets.

--

Here's another interesting fact:

When running rake assets:precompile, be sure to include an ENV var:

rake assets:precompile RAILS_ENV=production

By doing this, the files will be precompiled using the data and settings from the production environment, ensuring the most reliable outcome.


Personally, I always aim to load local assets dynamically.

This can be achieved without any changes on your end (in fact, I recommend removing the serve_static_files line from your development.rb file).

The reason behind this approach is that dealing with precompiled assets in development requires constantly recompiling them to test for changes, which is time-consuming and unreliable.

Heroku typically only requires asset precompilation for its production environment.


I seem unable to run that command

This could indicate a deeper issue with either your app or Ruby installation.

Here are a few steps you can take to troubleshoot:

  1. Move all your CSS and JS files to a temporary folder (or the Recycle Bin if needed), then run rake assets:precompile. There might be a reference or loop causing the issue.

  2. Create a new Rails app with rails new TESTAPP and immediately run rake assets:precompile. If it works smoothly, the problem likely lies in your current app.

  3. Ensure no other processes are running that could interfere with the command. Running programs might disrupt the process.

  4. If you used RubyInstaller to install Ruby, consider upgrading. Even if not, an upgrade could still be beneficial.

If your computer is performing rake commands very slowly, it could indicate a more significant system issue. It's important to address this for a smooth development experience.

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