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begin
require 'flog'
require 'yaml'
class Float
def round_to(n)
(self * 10**n).round.to_f * 10**-n
end
end
config = YAML.load_file(File.expand_path('../../../config/flog.yml', __FILE__)).freeze
threshold = config.fetch('threshold').to_f.round_to(1)
# original code by Marty Andrews:
# http://blog.martyandrews.net/2009/05/enforcing-ruby-code-quality.html
desc 'Analyze for code complexity'
task :flog do
flog = Flog.new
flog.flog Array(config.fetch('path', 'lib'))
totals = flog.totals.select { |name, score| name[-5, 5] != '#none' }.
map { |name, score| [ name, score.round_to(1) ] }.
sort_by { |name, score| score }
max = totals.last[1]
unless max >= threshold
raise "Adjust flog score down to #{max}"
end
bad_methods = totals.select { |name, score| score > threshold }
if bad_methods.any?
bad_methods.reverse_each do |name, score|
puts '%8.1f: %s' % [ score, name ]
end
raise "#{bad_methods.size} methods have a flog complexity > #{threshold}"
end
end
rescue LoadError
task :flog do
abort 'Flog is not available. In order to run flog, you must: gem install flog'
end
end
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