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# File 'lib/sprockets_uglifier_with_source_maps/compressor.rb', line 4
def evaluate(context, locals, &block)
options = {comments: false}.merge!(Rails.application.config.assets.uglifier.to_h)
compressed_data, sourcemap = Uglifier.new(options).compile_with_map(data)
uncompressed_filename = File.join(Rails.application.config.assets.prefix, Rails.application.config.assets.uncompressed_prefix, "#{context.logical_path}-#{digest(data)}.js")
uncompressed_url = filename_to_url uncompressed_filename
sourcemap = JSON.parse(sourcemap)
sourcemap['file'] = "#{context.logical_path}.js"
sourcemap['sources'] = [uncompressed_url]
sourcemap = sourcemap.to_json
sourcemap_filename = File.join(Rails.application.config.assets.prefix, Rails.application.config.assets.sourcemaps_prefix, "#{context.logical_path}-#{digest(sourcemap)}.js.map")
sourcemap_path = File.join(Rails.public_path, sourcemap_filename)
uncompressed_path = File.join(Rails.public_path, uncompressed_filename)
FileUtils.mkdir_p [File.dirname(sourcemap_path), File.dirname(uncompressed_path)]
File.open(sourcemap_path, 'w') { |f| f.write sourcemap }
File.open(uncompressed_path, 'w') { |f| f.write data }
if Rails.application.config.assets.sourcemaps_gzip
[sourcemap_path,uncompressed_path ].each do |f|
Zlib::GzipWriter.open("#{f}.gz") do |gz|
gz.mtime = File.mtime(f)
gz.orig_name = f
gz.write IO.binread(f)
end
end
end
sourcemap_url = filename_to_url sourcemap_filename
compressed_data.concat "\n//# sourceMappingURL=#{sourcemap_url}\n"
end
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