Module: RubyAppraiser::Git

Extended by:
Git
Included in:
Git
Defined in:
lib/ruby-appraiser/git.rb

Instance Method Summary collapse

Instance Method Details

#authored_lines(options = {}) ⇒ Object 



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# File 'lib/ruby-appraiser/git.rb', line 8

def authored_lines(options = {})
  diff_command = ['diff']
  if options[:range]
    diff_command << options[:range]
  else
    diff_command << (options[:staged] ? '--cached' : 'HEAD')
  end

  diff_out = run(*diff_command)

  current_path, current_line = nil, nil
  authored_lines = Hash.new { |hash, key| hash[key] = [] }

  diff_out.each_line do |line|
    case line
    when /^---/ then next
    when /^\+\+\+ (?:b\/)?(.*)/
      current_path = Regexp::last_match(1)
    when /-[0-9]+(?:,[0-9]+)? \+([0-9]+)((,[0-9]+)?)/
      current_line = Regexp::last_match(1).to_i
    else
      next if line.start_with? '-'
      authored_lines[current_path] << current_line if line[0] == '+'
      current_line += 1 unless current_line.nil?
    end
  end

  authored_lines.default_proc = Proc.new { [] }
  authored_lines.reject do |filepath, lines|
    not File::file? filepath or
    not RubyAppraiser::rubytype? filepath
  end
end

#run(*git_command) ⇒ Object 



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# File 'lib/ruby-appraiser/git.rb', line 42

def run(*git_command)
  stdin, stdout, stderr = Open3.popen3('git', *git_command)
  stdin.close

  case stderr.read
  when /^fatal: Not a git/i
    then raise 'ruby-appraiser only works in git repos.'
  when /^fatal: ambiguous argument 'HEAD'/i
    then raise 'this ruby-appraiser mode only works with previous ' +
               'commits, and your repository doesn\'t appear to have ' +
               'any. Make some commits first, or try a different mode.'
  end

  return yield(stdout) if block_given?
  stdout
end