initializer to load a yaml file into sass variables

load_sass_variables.rb

# Throw this in config/initializers and add
# @import variables.sass to the top of application.sass
# to have all variables in app_config.yml
# available as variables in your sass stylesheets

sass_variables = []

app_variables = YAML.load_file("#{Rails.root}/config/app_config.yml")
app_variables.each do |key, value|
  sass_vars << "!#{key} = #{value}"
end

File.open("#{Rails.root}/public/stylesheets/sass/variables.sass", 'w+') do |file|
  file.write(sass_variables.join("\n"))
end