48 lines
1.7 KiB
Ruby
48 lines
1.7 KiB
Ruby
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begin
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if RUBY_VERSION == '1.8.7' and !defined?(RUBY_ENGINE)
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require 'flay'
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require 'yaml'
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config = YAML.load_file(File.expand_path('../../../config/flay.yml', __FILE__)).freeze
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threshold = config.fetch('threshold').to_i
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total_score = config.fetch('total_score').to_f
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files = Flay.expand_dirs_to_files(config.fetch('path', 'lib'))
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# original code by Marty Andrews:
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# http://blog.martyandrews.net/2009/05/enforcing-ruby-code-quality.html
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desc 'Analyze for code duplication'
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task :flay do
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# run flay once without a threshold to ensure the max mass matches the threshold
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flay = Flay.new(:fuzzy => false, :verbose => false, :mass => 0)
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flay.process(*files)
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max = flay.masses.map { |hash, mass| mass.to_f / flay.hashes[hash].size }.max
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unless max >= threshold
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raise "Adjust flay threshold down to #{max}"
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end
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total = flay.masses.reduce(0.0) { |total, (hash, mass)| total + (mass.to_f / flay.hashes[hash].size) }
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unless total == total_score
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raise "Flay total is now #{total}, but expected #{total_score}"
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end
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# run flay a second time with the threshold set
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flay = Flay.new(:fuzzy => false, :verbose => false, :mass => threshold.succ)
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flay.process(*files)
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if flay.masses.any?
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flay.report
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raise "#{flay.masses.size} chunks of code have a duplicate mass > #{threshold}"
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end
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end
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else
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task :flay do
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$stderr.puts 'Flay has inconsistend results accros ruby implementations. It is only enabled on 1.8.7, fix and remove guard'
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end
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end
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rescue LoadError
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task :flay do
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abort 'Flay is not available. In order to run flay, you must: gem install flay'
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end
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end
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