How to detect classes contained in ruby gems in Tailwind 4

1. bundler-symlink

   1 1 7 1.3 Ruby

   Symlink to all your bundled gems

   

   As it turns out, Bundler, has the concept of plugins and one of them does precisely what we need: the bundler-symlink plugin provides a post-install hook that adds symlinks to all gems of the main application under its local directory. Specifically, under the .bundle/gems/ directory of your project. This is great because all the different absolute gem paths are now accessible from a known place within the main application.

2. Stream

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3. Tailwind CSS

   2 1,546 91,596 9.8 TypeScript

   A utility-first CSS framework for rapid UI development.

   

   We briefly tried to use a glob in the gem path in the Tailwind configuration (as in @source ".../.bundle/gems/flowbite-*/...") but this did not work, probably due to a limitation of the Tailwind scanner regarding symlinks.

4. rubygems

   3 241 3,863 9.9 Ruby

   Library packaging and distribution for Ruby.

   

   $ bundle install Fetching gem metadata from https://rubygems.org/.. Resolving dependencies... Fetching bundler-symlink 0.4.0 Installing bundler-symlink 0.4.0 Installed plugin bundler-symlink Symlinking bundled gems into /home/matous/projekty/nejremeslnici/web/.bundle/gems Bundle complete! ... $ ls -l .bundle/gems lrwxrwxrwx 1 matous users 51 Mar 5 21:32 actioncable-8.0.1 -> /home/matous/.gem/ruby/3.4.1/gems/actioncable-8.0.1/ lrwxrwxrwx 1 matous users 53 Mar 5 21:32 actionmailbox-8.0.1 -> /home/matous/.gem/ruby/3.4.1/gems/actionmailbox-8.0.1/ lrwxrwxrwx 1 matous users 52 Mar 5 21:32 actionmailer-8.0.1 -> /home/matous/.gem/ruby/3.4.1/gems/actionmailer-8.0.1/ lrwxrwxrwx 1 matous users 50 Mar 5 21:32 actionpack-8.0.1 -> /home/matous/.gem/ruby/3.4.1/gems/actionpack-8.0.1/ lrwxrwxrwx 1 matous users 50 Mar 5 21:32 actiontext-8.0.1 -> /home/matous/.gem/ruby/3.4.1/gems/actiontext-8.0.1/ lrwxrwxrwx 1 matous users 50 Mar 5 21:32 actionview-8.0.1 -> /home/matous/.gem/ruby/3.4.1/gems/actionview-8.0.1/ ...

5. bundler-bare-symlink

   4 1 0 6.5 Ruby

   Create symlinks to all your bundled gems using just the bare gem names without version

   

   We ended up cloning the bundler plugin and amending its source to create symlinks that were not versioned instead. We released the new plugin under the bundler-bare_symlink name. It is exactly the same as the original 1 except for one thing: it uses the bare gem name instead of the (versioned) gem directory name in the symlink name.

6. flowbite

   5 207 9,015 9.7 JavaScript

   Open-source UI component library and front-end development framework based on Tailwind CSS

   

   As it quickly turned out, we forgot about the fact that not all CSS classes are used within our application itself. Our app includes an internal gem that implements several Flowbite components and some of the Tailwind classes it contains are unique to that gem. As the gem sources reside outside the app root directory, the Tailwind program cannot see them and doesn’t scan them for potential classes.

7. InfluxDB

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