Find scss files that you haven't imported

find_unimported_scss_files

#!/usr/bin/env ruby

def find_imports_from root_file
  imports = []
  path = resolve_path root_file

  return [] unless File.exists? root_file

  open root_file do |f|
    import_lines = f.grep(/\@import/)

    import_lines.map do |line|
      match = /\@import (?:"|')(.*)(?:"|')/.match(line)
      imported_file_path = "#{path}#{match[1]}.scss"

      if imported_file_path.index(/\*/)
        imports.concat Dir[imported_file_path]
      else
        imports.push imported_file_path
      end
    end
  end

  imports
end

def find_all_imports_from root_file
  imports = find_imports_from root_file

  imports.each do |import|
    imports.concat find_all_imports_from import
  end
end

def find_unimported_files
  all_files = Dir["app/assets/stylesheets/**/**/**/**/*.scss"]
  all_imports = []
  root_files = [
    "app/assets/stylesheets/application.scss",
    "app/assets/stylesheets/email.scss"
  ]

  root_files.each do |root_file|
    all_imports.concat find_all_imports_from root_file
  end

  all_files - all_imports - root_files
end

def resolve_path file
  parts = file.split(/\//)[0...-1]

  path = parts.join '/'

  if path.length > 0
    "#{path}/"
  else
    ""
  end
end

p find_unimported_files