text: # -*- coding: utf-8 -*-
  
  import os
  import base
  from datetime import datetime
  
  oras_cmd = "oras"
  file_artifact = "artifact.txt"
  file_readme = "readme.md"
  file_config = "config.json"
  
  def oras_push(harbor_server, user, password, project, repo, tag):
      oras_login(harbor_server, user, password)
      fo = open(file_artifact, "w")
      fo.write( "hello artifact" )
      fo.close()
      md5_artifact = base.run_command( ["md5sum", file_artifact] )
      fo = open(file_readme, "w")
      fo.write( r"Docs on this artifact" )
      fo.close()
      md5_readme = base.run_command( [ "md5sum", file_readme] )
      fo = open(file_config, "w")
      fo.write( "{\"doc\":\"readme.md\"}" )
      fo.close()
      ret = base.run_command( [oras_cmd, "push", harbor_server + "/" + project + "/" + repo+":"+ tag,
                               "--manifest-config", "config.json:application/vnd.acme.rocket.config.v1+json", \
                               file_artifact+":application/vnd.acme.rocket.layer.v1+txt", \
                               file_readme +":application/vnd.acme.rocket.docs.layer.v1+json"] )
      return md5_artifact.split(' ')[0], md5_readme.split(' ')[0]
  
  def oras_login(harbor_server, user, password):
       ret = base.run_command([oras_cmd, "login", "-u", user, "-p", password, harbor_server])
  
  def oras_pull(harbor_server, user, password, project, repo, tag):
      try:
          cwd = os.getcwd()
          cwd= cwd + r"/tmp" + datetime.now().strftime(r'%m%s')
          if os.path.exists(cwd):
            os.rmdir(cwd)
          os.makedirs(cwd)
          os.chdir(cwd)
      except Exception as e:
          raise Exception('Error: Exited with error {}',format(e))
      ret = base.run_command([oras_cmd, "pull", harbor_server + "/" + project + "/" + repo+":"+ tag, "-a"])
      assert os.path.exists(file_artifact)
      assert os.path.exists(file_readme)
      return base.run_command( ["md5sum", file_artifact] ).split(' ')[0], base.run_command( [ "md5sum", file_readme] ).split(' ')[0]
  