custom_asset_precompilation

🚀 Efficient Custom Asset Precompilation

By default Rails precompiles application.js and application.css, but you can target additional files or patterns to speed up your build and avoid bloated manifests. Add glob patterns or specific filenames to config.assets.precompile in an initializer.

# config/initializers/assets.rb
Rails.application.config.assets.version = '1.0'
# Precompile all JS/CSS in vendor folder and .svg icons
Rails.application.config.assets.precompile += %w(
  admin.js
  admin.css
)
Rails.application.config.assets.precompile += Dir.glob(
  Rails.root.join('app', 'assets', 'images', 'icons', '*.svg')
).map { |path| "icons/" + File.basename(path) }

This ensures only the files you actually use are fingerprinted, reducing compile time and manifest size.