Module: ChurnVsComplexity::Complexity::SwiftCalculator

Defined in:
lib/churn_vs_complexity/complexity/swift_calculator.rb

Constant Summary collapse

LIZARD_LINE_PATTERN =

Lizard CSV format: NLOC,CCN,tokens,params,length,"loc","file","func","long_func",start,end

/^\d+,(\d+),\d+,\d+,\d+,"[^"]*","([^"]*)"/

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.command_runner=(value) ⇒ Object

Sets the attribute command_runner

Parameters:

  • value —

    the value to set the attribute command_runner to.



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# File 'lib/churn_vs_complexity/complexity/swift_calculator.rb', line 9

def command_runner=(value)
  @command_runner = value
end

Class Method Details

.calculate(files:) ⇒ Object 



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# File 'lib/churn_vs_complexity/complexity/swift_calculator.rb', line 13

def calculate(files:)
  csv_output = run_lizard(files)
  parse_lizard_output(csv_output, files:)
end

.check_dependencies! ⇒ Object 



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# File 'lib/churn_vs_complexity/complexity/swift_calculator.rb', line 32

def check_dependencies!
  command_runner.call('lizard --version 2>&1')
rescue Errno::ENOENT
  raise Error, 'Needs lizard installed (pip install lizard)'
end

.folder_based? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/churn_vs_complexity/complexity/swift_calculator.rb', line 11

def folder_based? = false

.parse_lizard_output(csv_output, files:) ⇒ Object 



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# File 'lib/churn_vs_complexity/complexity/swift_calculator.rb', line 21

def parse_lizard_output(csv_output, files:)
  scores = Hash.new(0)
  csv_output.each_line do |line|
    match = line.match(LIZARD_LINE_PATTERN)
    next unless match

    scores[match[2]] += match[1].to_i
  end
  files.to_h { |file| [file, scores[file] || 0] }
end