Module: Opal::Sprockets::SourceMapHeaderPatch

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# File 'opal/lib/opal/sprockets/source_map_header_patch.rb', line 17
def self.included(base)
 # Poor man's alias_method_chain :)
 base.send(:alias_method, :headers_without_opal_source_maps, :headers)
 base.send(:alias_method, :headers, :headers_with_opal_source_maps)
end

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# File 'opal/lib/opal/sprockets/source_map_header_patch.rb', line 23
def self.inject!(prefix)
 self.prefix = prefix
 unless ::Sprockets::Server.ancestors.include?(self)
 ::Sprockets::Server.send :include, self
 end
end

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# File 'opal/lib/opal/sprockets/source_map_header_patch.rb', line 30
def self.prefix
 @prefix
end

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# File 'opal/lib/opal/sprockets/source_map_header_patch.rb', line 34
def self.prefix= val
 @prefix = val
end

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# File 'opal/lib/opal/sprockets/source_map_header_patch.rb', line 8
def headers_with_opal_source_maps(env, asset, length)
 headers_without_opal_source_maps(env, asset, length).tap do |current_headers|
 if asset.pathname.to_s =~ /\.(rb|opal)\b/
 base_path = asset.logical_path.gsub('.js', '')
 current_headers['X-SourceMap'] = "#{::Opal ::Sprockets ::SourceMapHeaderPatch .prefix }/#{base_path}.map"
 end
 end
end