Class: SRS::CLI::DoExercise

Inherits:
Object
  • Object
show all
Defined in:
lib/srs/cli/do-exercise.rb

Instance Method Summary collapse

Instance Method Details

#help ⇒ Object 



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# File 'lib/srs/cli/do-exercise.rb', line 63

def help()
	puts <<-EOF
srs do-exercise <id>

Runs the exercise defined in <id>
		EOF
end

#run!(arguments) ⇒ Object 



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# File 'lib/srs/cli/do-exercise.rb', line 4

def run!(arguments)
	if not SRS::Workspace.initialised? then
		puts "Current directory is not an SRS Workspace"
		return 3
	end

	sha1 = arguments.shift
	sha1_start = sha1[0..1]
	sha1_rest = sha1[2..-1]

	datafile = "exercises/#{sha1_start}/#{sha1_rest}"

	if not File.exists?(datafile) then
		puts "No content with that ID exists"
		return 4
	end

	headers = {}
	metadata = ""
	File.open(datafile, "r") do |file|
		while( line = file.gets() ) do
			if line.strip.empty? then
				break
			end

			key, *val = line.split(':').map{|e| e.strip}
			headers[key] = val.join(':')
		end
		metadata = file.read
	end

	runModel(sha1, headers, metadata)
end

#runModel(sha1, headers, metadata) ⇒ Object 



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# File 'lib/srs/cli/do-exercise.rb', line 38

def runModel(sha1, headers, metadata)
	if not headers.has_key?("Model") then
		puts "Exercise #{sha1} has no model!\n"
		return nil
	end

	modelclass = headers.delete("Model")

	begin
		require "./models/#{modelclass}"
	rescue LoadError
		begin
			require "srs/models/#{modelclass}"
		rescue LoadError
			puts "Couldn't find model #{modelclass}."
			return nil
		end
	end

	model = SRS::Models.const_get(modelclass.to_sym).new
	score = model.run(headers, metadata)

	return score
end