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require 'sprockets/utils'
module Sprockets
# `Compressing` is an internal mixin whose public methods are exposed on
# the `Environment` and `CachedEnvironment` classes.
module Compressing
include Utils
def compressors
config[:compressors]
end
def register_compressor(mime_type, sym, klass)
self.config = hash_reassoc(config, :compressors, mime_type) do |compressors|
compressors[sym] = klass
compressors
end
end
# Return CSS compressor or nil if none is set
def css_compressor
if defined? @css_compressor
@css_compressor
end
end
# Assign a compressor to run on `text/css` assets.
#
# The compressor object must respond to `compress`.
def css_compressor=(compressor)
unregister_bundle_processor 'text/css', @css_compressor if defined? @css_compressor
@css_compressor = nil
return unless compressor
if compressor.is_a?(Symbol)
@css_compressor = klass = config[:compressors]['text/css'][compressor] || raise(Error, "unknown compressor: #{compressor}")
elsif compressor.respond_to?(:compress)
klass = LegacyProcProcessor.new(:css_compressor, proc { |context, data| compressor.compress(data) })
@css_compressor = :css_compressor
else
@css_compressor = klass = compressor
end
register_bundle_processor 'text/css', klass
end
# Return JS compressor or nil if none is set
def js_compressor
if defined? @js_compressor
@js_compressor
end
end
# Assign a compressor to run on `application/javascript` assets.
#
# The compressor object must respond to `compress`.
def js_compressor=(compressor)
unregister_bundle_processor 'application/javascript', @js_compressor if defined? @js_compressor
@js_compressor = nil
return unless compressor
if compressor.is_a?(Symbol)
@js_compressor = klass = config[:compressors]['application/javascript'][compressor] || raise(Error, "unknown compressor: #{compressor}")
elsif compressor.respond_to?(:compress)
klass = LegacyProcProcessor.new(:js_compressor, proc { |context, data| compressor.compress(data) })
@js_compressor = :js_compressor
else
@js_compressor = klass = compressor
end
register_bundle_processor 'application/javascript', klass
end
# Public: Checks if Gzip is enabled.
def gzip?
config[:gzip_enabled]
end
# Public: Checks if Gzip is disabled.
def skip_gzip?
!gzip?
end
# Public: Enable or disable the creation of Gzip files.
#
# Defaults to true.
#
# environment.gzip = false
#
def gzip=(gzip)
self.config = config.merge(gzip_enabled: gzip).freeze
end
end
end
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