When running assets:precompile, Propshaft includes individual digested files for all CSS / JS instead of only bundles

[nickjj]

Hello,

I'm using Rails 8 with Propshaft v1.1.0 along with jsbundling and cssbundling where esbuild is doing the bundling.

After running assets:precompile in production mode the following files are created in public/:

The concern here is all of the JS and CSS files. When I was using Sprockets, only the application-xxx.js and application-xxx.css files were created but with Propshaft it's generating digested files for everything.

Based on the Propshaft documentation I thought maybe since bundling is happening with esbuild I could set:

Rails.application.config.assets.excluded_paths << ["app/assets/stylesheets", "app/javascript"]

But this resulted in the same outcome where the excess JS and CSS files were created.

What am I doing wrong?

Edit: this is happening with Sprockets too

Here's the same project but using Sprockets:

Is this possibly a Rails 8 change and has nothing to do with Propshaft? Unless I'm crazy (which is very possible), I don't recall all of these files being created in the past by Sprockets. Do we know why they're being created?

[midnight-wonderer]

I spotted three question marks, I could only help with some.

The digest is intended to be used with Cache-Control: immutable. I hope you already know this, I just provided the answer as feedback to your question.

Assuming that the inverse of this statement is what you want:

Propshaft includes individual digested files for all CSS / JS instead of only bundles

Have you read bypassing the digest step yet?
It is basically Propshaft's interface for working with other build tools (esbuild included); can it solve your problem?
Why or why not?

[theodorton]

The reason your excluded_paths config doesn't work is because you're not setting absolute paths. You'll need to use Rails.root.join. From the README:

You can however exempt directories that have been added through the config.assets.excluded_paths. This is useful if you're for example using app/assets/stylesheets exclusively as a set of inputs to a compiler like Dart Sass for Rails, and you don't want these input files to be part of the load path. (Remember you need to add full paths, like Rails.root.join("app/assets/stylesheets")).