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#!/usr/bin/ruby
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require 'optparse'
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def config
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Grader::Configuration.get_instance
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end
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def log_file_name
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if !File.exists?(config.log_dir)
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raise "Log directory does not exist: #{config.log_dir}"
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end
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config.log_dir +
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"/#{GRADER_ENV}.#{Process.pid}"
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end
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def log(str)
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if config.talkative
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puts str
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end
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if config.logging
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fp = File.open(log_file_name,"a")
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fp.puts("GRADER: #{Time.new.strftime("%H:%M")} #{str}")
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fp.close
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end
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end
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def parse_arguments(args)
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options = {
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:environment => 'grading',
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:problems => [],
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:submissions => []
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}
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opts = OptionParser.new do |opts|
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opts.banner = <<BANNER
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grader-batch - the grader for batch grading..
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Usage: grader-batch [options]
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BANNER
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opts.on("-e", "--env", "Set environment: grading (*), exam, etc.") do |env|
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options[:environment] = env
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end
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opts.on("--prob p1,p2,p3", Array, "Grade problems p1, p2, and p3.") do |prob_list|
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options[:problems] += prob_list
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end
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opts.on("--sub s1,s2,s3", Array, "Grade submissions specified by ids") do |submission_list|
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options[:submissions] += submission_list
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end
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# help
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opts.on_tail("-h", "--help", "Show this message") do
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puts opts
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exit
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end
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end
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opts.parse!
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return options
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end
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#########################################
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# main program
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#########################################
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options = parse_arguments(ARGV)
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# reading environment and options
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GRADER_ENV = options[:environment]
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puts "environment: #{GRADER_ENV}"
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require File.join(File.dirname(__FILE__),'config/environment')
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# reading rails environment
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log 'Reading rails environment'
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RAILS_ENV = config.rails_env
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require RAILS_ROOT + '/config/environment'
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# register grader process
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if config.report_grader
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grader_proc = GraderProcess.register(config.grader_hostname,
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Process.pid,
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GRADER_ENV)
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else
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grader_proc = nil
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end
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#set loggin environment
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ENV['GRADER_LOGGING'] = log_file_name
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# register exit handler to report inactive, and terminated
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at_exit do
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if grader_proc!=nil
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grader_proc.report_inactive
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grader_proc.terminate
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end
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end
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# grading
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engine = Grader::Engine.new
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runner = Grader::Runner.new(engine, grader_proc)
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# grade problems
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options[:problems].each do |prob_name|
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grader_proc.report_active if grader_proc!=nil
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prob = Problem.find_by_name(prob_name)
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if prob==nil
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puts "cannot find problem: #{prob_name}"
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else
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runner.grade_problem(prob)
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end
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grader_proc.report_inactive if grader_proc!=nil
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end
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# grade submissions
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options[:submissions].each do |sub_id|
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grader_proc.report_active if grader_proc!=nil
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puts "Grading #{sub_id}"
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begin
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submission = Submission.find(sub_id.to_i)
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rescue ActiveRecord::RecordNotFound
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puts "Record not found"
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submission = nil
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end
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if submission!=nil
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runner.grade_submission(submission)
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end
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grader_proc.report_inactive if grader_proc!=nil
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end
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puts "Done."
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jittat-