pre-commit

#!/usr/bin/env ruby

require 'english'
require 'rubocop'

ADDED_OR_MODIFIED = /A|AM|^M/.freeze

changed_files = `git status --porcelain`.split(/\n/).
    select { |file_name_with_status|
      file_name_with_status =~ ADDED_OR_MODIFIED
    }.
    map { |file_name_with_status|
      file_name_array = file_name_with_status.strip.split(' ')
      file_name_array.shift
      fname = file_name_array.join(' ')
      fname[0]="" if fname[0] == '"'
      fname[fname.length-1]="" if fname[fname.length-1] == '"'
      fname
    }.join(' ')

system("rubocop #{changed_files} --force-exclusion --parallel") unless changed_files.empty?

exit $CHILD_STATUS.to_s[-1].to_i%