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#!/usr/bin/env ruby
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def config
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Grader::Configuration.get_instance
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end
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def display_manual
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puts <<USAGE
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Check similarity between submission
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using: check_similar sub1 sub2
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-- or --
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check_similar problem_name
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sub1 and sub2 are submission IDs to be checked
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problem_name will check all submissions of the problem wit problem short name is 'problem_name'
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The output are given as
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sub1.login, sub1.id, sub1.point, sub2.login, sub2.id, sub2.point, similarity
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USAGE
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end
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def process_options_and_stop_file
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# Process 'help' option
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if (ARGV.length == 0) or ((ARGV.length==1) and (/help/.match(ARGV[0])))
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display_manual
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exit(0)
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end
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#default options
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options = {
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:dry_run => false,
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}
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if ARGV.length == 2
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options[:sub1] = ARGV[0].to_i
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options[:sub2] = ARGV[1].to_i
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elsif ARGV.length == 1
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options[:problem] = ARGV[0]
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end
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return options
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end
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def compare(sub1,sub2,full = sub1.problem.full_score)
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dis = @jarow.getDistance(sub1.source, sub2.source)
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puts [sub1.user.login,"##{sub1.id}",(sub1.points * 100.0 / full).to_i,
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sub2.user.login,"##{sub2.id}",(sub2.points * 100.0 / full).to_i,
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"#{dis * 100}%"].join(',')
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end
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#########################################
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# main program
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#########################################
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options = process_options_and_stop_file
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# load grader environment
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GRADER_ENV = 'grading'
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require File.join(File.dirname(__FILE__),'config/environment')
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# boot rails, to be able to use the active record
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RAILS_ENV = config.rails_env
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require RAILS_ROOT + '/config/environment'
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# load comparator
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require 'fuzzystringmatch'
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@jarow = FuzzyStringMatch::JaroWinkler.create( :native )
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if options[:problem]
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p = Problem.where(name: options[:problem]).first
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unless p
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puts "cannot find problem #{options[:problem]}"
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exit(0)
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end
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subs = Submission.where(problem: p)
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full_score = p.full_score.to_i
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subs.each.with_index do |s1,i|
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puts "processing #{i+1} out of #{subs.length}"
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subs.each do |s2|
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if s1.user != s2.user
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compare(s1,s2,full_score)
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end
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end
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end
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else
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sub1 = Submission.find(options[:sub1])
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sub2 = Submission.find(options[:sub2])
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compare(sub1,sub2)
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end
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