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# File 'lib/ruby-appraiser/git.rb', line 7
def authored_lines(options = {})
diff_command = ['git', 'diff']
if options[:range]
diff_command << options[:range]
else
diff_command << (options[:staged] ? '--cached' : 'HEAD')
end
diff_io = IO.popen(diff_command << {err: [:child, :out]})
diff_output = diff_io.read
case diff_output
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
current_path, current_line = nil, nil
authored_lines = Hash.new { |hash, key| hash[key] = [] }
diff_output.lines 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
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