old_contents: from coala_utils.string_processing import escape
  
  from coalib.bearlib.abstractions.Linter import linter
  from dependency_management.requirements.RscriptRequirement import (
      RscriptRequirement)
  from coalib.results.RESULT_SEVERITY import RESULT_SEVERITY
  
  
  @linter(executable='Rscript',
          output_format='regex',
          output_regex=r'.*?:(?P<line>\d+):(?P<column>\d+): '
                       r'(?P<severity>\S+): (?P<message>.*)',
          severity_map={'style': RESULT_SEVERITY.NORMAL,
                        'warning': RESULT_SEVERITY.NORMAL,
                        'error': RESULT_SEVERITY.MAJOR},
          prerequisite_check_command=('Rscript', '-e', 'library(lintr)'),
          prerequisite_check_fail_message='R library "lintr" is not installed.')
  class RLintBear:
      """
      Checks the code with ``lintr``.
      """
      LANGUAGES = {'R'}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      REQUIREMENTS = {RscriptRequirement(package='lintr', flag='-e',
                                         repo='http://cran.rstudio.com')}
      LICENSE = 'AGPL-3.0'
      CAN_DETECT = {'Syntax', 'Formatting'}
  
      @staticmethod
      def create_arguments(filename, file, config_file):
          return ('-e', 'library(lintr)', '-e',
                  'lintr::lint("' + escape(filename, '\\"') + '")')
  
new_contents: from coala_utils.string_processing import escape
  
  from coalib.bearlib.abstractions.Linter import linter
  from dependency_management.requirements.RscriptRequirement import (
      RscriptRequirement)
  from dependency_management.requirements.DistributionRequirement import (
      DistributionRequirement)
  from coalib.results.RESULT_SEVERITY import RESULT_SEVERITY
  
  
  @linter(executable='Rscript',
          output_format='regex',
          output_regex=r'.*?:(?P<line>\d+):(?P<column>\d+): '
                       r'(?P<severity>\S+): (?P<message>.*)',
          severity_map={'style': RESULT_SEVERITY.NORMAL,
                        'warning': RESULT_SEVERITY.NORMAL,
                        'error': RESULT_SEVERITY.MAJOR},
          prerequisite_check_command=('Rscript', '-e', 'library(lintr)'),
          prerequisite_check_fail_message='R library "lintr" is not installed.')
  class RLintBear:
      """
      Checks the code with ``lintr``.
      """
      LANGUAGES = {'R'}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      REQUIREMENTS = {RscriptRequirement(package='lintr', flag='-e',
                                         repo='http://cran.rstudio.com'),
                      DistributionRequirement(apt_get='r-base',
                                              version='>=3.1.1')}
      LICENSE = 'AGPL-3.0'
      CAN_DETECT = {'Syntax', 'Formatting'}
  
      @staticmethod
      def create_arguments(filename, file, config_file):
          return ('-e', 'library(lintr)', '-e',
                  'lintr::lint("' + escape(filename, '\\"') + '")')
  
subject: Add version requirement