module Sprockets::Exporting

def export_concurrent

Public: Checks if concurrent exporting is allowed 
def export_concurrent
  config[:export_concurrent]
end

def export_concurrent=(export_concurrent)


environment.export_concurrent = false

Defaults to true.

Public: Enable or disable the concurrently exporting files 
def export_concurrent=(export_concurrent)
  self.config = config.merge(export_concurrent: export_concurrent).freeze
end

def exporters

Exporters are ran on the assets:precompile task 
def exporters
  config[:exporters]
end

def register_exporter(mime_types, klass = nil)

`Sprockets::Exporters::Zlib`
This ensures that `Sprockets::Exporters::File` will always execute before

register_exporter '*/*', Sprockets::Exporters::ZlibExporter

specify this via the `depend_on` keyword.
If your exporter depends on one or more other exporters you can

Public: Registers a new Exporter `klass` for `mime_type`. 
def register_exporter(mime_types, klass = nil)
  mime_types = Array(mime_types)
  mime_types.each do |mime_type|
    self.config = hash_reassoc(config, :exporters, mime_type) do |_exporters|
      _exporters << klass
    end
  end
end

def unregister_exporter(mime_types, exporter = nil)

Does not remove any exporters that depend on `klass`.

environment.unregister_exporter Sprockets::Exporters::ZlibExporter

Can be called without a mime type

environment.unregister_exporter '*/*', Sprockets::Exporters::ZlibExporter

Public: Remove Exporting processor `klass` for `mime_type`. 
def unregister_exporter(mime_types, exporter = nil)
  unless mime_types.is_a? Array
    if mime_types.is_a? String
      mime_types = [mime_types]
    else # called with no mime type
      exporter = mime_types
      mime_types = nil
    end
  end
  self.config = hash_reassoc(config, :exporters) do |_exporters|
    _exporters.each do |mime_type, exporters_array|
      next if mime_types && !mime_types.include?(mime_type)
      if exporters_array.include? exporter
        _exporters[mime_type] = exporters_array.dup.delete exporter
      end
    end
  end
end