text: import sys
  import os
  import re
  import json
  import click
  import urllib
  
  import anchorecli.clients.apiexternal
  import anchorecli.cli.utils
  
  config = {}
  
  @click.group(name='evaluate', short_help='Policy evaluation operations')
  @click.pass_obj
  def evaluate(ctx_config):
      global config
      config = ctx_config
  
      try:
          anchorecli.cli.utils.check_access(config)
      except Exception as err:
          print anchorecli.cli.utils.format_error_output(config, 'evaluate', {}, err)
          sys.exit(2)
  
  @evaluate.command(name='check', short_help="Check latest policy evaluation for an image")
  @click.option("--show-history", is_flag=True, help="Show all previous policy evaluations")
  @click.option("--detail", is_flag=True, help="Show detailed policy evaluation report")
  @click.option("--tag", help="Specify which TAG is evaluated for a given image ID or Image Digest")
  @click.option("--policy", help="Specify which POLICY to use for evaluate (defaults currently active policy)")
  @click.argument('input_image', nargs=1)
  def check(input_image, show_history, detail, tag, policy):
      """
      INPUT_IMAGE: Input image can be in the following formats: Image Digest, ImageID or registry/repo:tag
      """
      ecode = 0
  
      try:
          itype, image, imageDigest = anchorecli.cli.utils.discover_inputimage(config, input_image)
  
          if imageDigest:
              thetag = input_image
              if tag:
                  thetag = tag
              elif itype == 'tag':
                  thetag = image
              else:
                  raise Exception("input image name is not a tag, and no --tag is specified")
  
              ret = anchorecli.clients.apiexternal.check_eval(config, imageDigest=imageDigest, history=show_history, detail=detail, tag=thetag, policyId=policy)
              ecode = anchorecli.cli.utils.get_ecode(ret)
              if ret['success']:
                  print anchorecli.cli.utils.format_output(config, 'evaluate_check', {'detail': detail, 'history': show_history, 'tag': thetag}, ret['payload'])
                  ecode = anchorecli.cli.utils.get_eval_ecode(ret['payload'], imageDigest)
              else:
                  raise Exception(json.dumps(ret['error'], indent=4))
          else:
              raise Exception("could not get image record from anchore")
  
      except Exception as err:
          print anchorecli.cli.utils.format_error_output(config, 'evaluate_check', {}, err)
          if not ecode:
              ecode = 2
  
      anchorecli.cli.utils.doexit(ecode)
  
  