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

This snippet includes all js/css files, excluding gems, under: app/assets, vendor/assets, lib/assets, unless they are partial files (e.g. "_file.sass"). It also has a strategy for including assets from Gems which aren't included in every page.

    # These assets are from Gems which aren't included in every page.
    # So they must be included here
    # instead of in the application.js and css manifests.
    config.assets.precompile += %w(a-gem.css a-gem.js b-gem.js)

    # This block includes all js/css files, excluding gems,
    # under: app/assets, vendor/assets, lib/assets
    # unless they are partial files (e.g. "_file.sass")
    config.assets.precompile << Proc.new { |path|
      if path =~ /\.(css|js)\z/
        full_path = Rails.application.assets.resolve(path).to_path
        aps = %w( /app/assets /vendor/assets /lib/assets )
        if aps.any? {|ap| full_path.starts_with?("#{Rails.root}#{ap}")} &&
            !path.starts_with?('_')
          puts "\tIncluding: " + full_path.slice(Rails.root.to_path.size..-1)
          true
        else
          puts "\tExcluding: " + full_path
          false
        end
      else
        false
      end
    }

Although, you probably wouldn't want to do this since you'd likely be precompiling gem assets twice (basically anything that is already \=require'd in your application.js or css). This snippet includes all js/css files, including gems, under: app/assets, vendor/assets, lib/assets, unless they are partial files (e.g. "_file.sass")

# This block includes all js/css files, including gems, 
# under: app/assets, vendor/assets, lib/assets
# and excluding partial files (e.g. "_file.sass")
config.assets.precompile << Proc.new { |path|
  if path =~ /\.(css|js)\z/
    full_path = Rails.application.assets.resolve(path).to_path
    asset_paths = %w( app/assets vendor/assets lib/assets)
    if (asset_paths.any? {|ap| full_path.include? ap}) && 
        !path.starts_with?('_')
      puts "\tIncluding: " + full_path
      true
    else
      puts "\tExcluding: " + full_path
      false
    end
  else
    false
  end
}