Class: MetricFu::Rcov

Inherits:
Generator show all
Defined in:
lib/generators/rcov.rb

Defined Under Namespace

Classes: Line

Constant Summary collapse

NEW_FILE_MARKER = 
("=" * 80) + "\n"

Instance Attribute Summary

Attributes inherited from Generator

#report, #template

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Generator

class_name, #create_data_dir_if_missing, #create_metric_dir_if_missing, #create_output_dir_if_missing, generate_report, #generate_report, #initialize, #metric_directory, metric_directory, #round_to_tenths, #to_graph

Constructor Details

This class inherits a constructor from MetricFu::Generator

Class Method Details

.verify_dependencies! ⇒ Object 



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# File 'lib/generators/rcov.rb', line 8

def self.verify_dependencies!
  `rcov --help`
  unless $?.success?
    if RUBY_PLATFORM =~ /java/
      raise 'running in jruby - rcov tasks not available'
    else
      raise 'sudo gem install rcov # if you want the rcov tasks'
    end
  end
end

Instance Method Details

#analyze ⇒ Object 



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# File 'lib/generators/rcov.rb', line 54

def analyze
  output = File.open(MetricFu::Rcov.metric_directory + '/rcov.txt').read
  output = output.split(NEW_FILE_MARKER)
  # Throw away the first entry - it's the execution time etc.
  output.shift
  files = {}
  output.each_slice(2) {|out| files[out.first.strip] = out.last}
  files.each_pair {|fname, content| files[fname] = content.split("\n") }
  files.each_pair do |fname, content|
    content.map! do |raw_line|
      if raw_line.match(/^!!/)
        line = Line.new(raw_line.gsub('!!', '  '), false).to_h
      else
        line = Line.new(raw_line, true).to_h
      end
    end
    files[fname] = {:lines => content}
  end

  # Calculate the percentage of lines run in each file
  @global_total_lines = 0
  @global_total_lines_run = 0
  files.each_pair do |fname, content|
    lines = content[:lines]
    @global_total_lines_run += lines_run = lines.find_all {|line| line[:was_run] == true }.length
    @global_total_lines += total_lines = lines.length
    percent_run = ((lines_run.to_f / total_lines.to_f) * 100).round
    files[fname][:percent_run] = percent_run
  end
  @rcov = files
end

#emit ⇒ Object 



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# File 'lib/generators/rcov.rb', line 32

def emit
  begin
    FileUtils.rm_rf(MetricFu::Rcov.metric_directory, :verbose => false)
    Dir.mkdir(MetricFu::Rcov.metric_directory)

    MetricFu.rcov.each do |conf|
      test_files = FileList[*conf[:test_files]].join(' ')
      rcov_opts = conf[:rcov_opts].join(' ')
      output = ">> #{MetricFu::Rcov.metric_directory}/rcov.txt"
      setup = conf[:setup] ? "#{conf[:setup]} && " : ''
      `#{setup} rcov #{test_files} #{rcov_opts} #{output}`
    end
  rescue LoadError
    if RUBY_PLATFORM =~ /java/
      puts 'running in jruby - rcov tasks not available'
    else
      puts 'sudo gem install rcov # if you want the rcov tasks'
    end
  end
end

#to_h ⇒ Object 



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# File 'lib/generators/rcov.rb', line 86

def to_h
  global_percent_run = ((@global_total_lines_run.to_f / @global_total_lines.to_f) * 100)
  {:rcov => @rcov.merge({:global_percent_run => round_to_tenths(global_percent_run) })}
end