functest/utils/config.py

   1 #!/usr/bin/env python
   2
   3 # pylint: disable=missing-docstring
   4
   5 import pkg_resources
   6 import yaml
   7
   8 import six
   9
  10 from functest.utils import env
  11
  12
  13 class Config():
  14     def __init__(self):
  15         try:
  16             with open(pkg_resources.resource_filename(
  17                     'functest', 'ci/config_functest.yaml')) as yfile:
  18                 self.functest_yaml = yaml.safe_load(yfile)
  19         except Exception as error:
  20             raise Exception(
  21                 'Parse config failed: {}'.format(str(error))) from error
  22
  23     @staticmethod
  24     def _merge_dicts(dict1, dict2):
  25         for k in set(dict1.keys()).union(dict2.keys()):
  26             if k in dict1 and k in dict2:
  27                 if isinstance(dict1[k], dict) and isinstance(dict2[k], dict):
  28                     yield (k, dict(Config._merge_dicts(dict1[k], dict2[k])))
  29                 else:
  30                     yield (k, dict2[k])
  31             elif k in dict1:
  32                 yield (k, dict1[k])
  33             else:
  34                 yield (k, dict2[k])
  35
  36     def patch_file(self, patch_file_path):
  37         with open(patch_file_path) as yfile:
  38             patch_file = yaml.safe_load(yfile)
  39
  40         for key in patch_file:
  41             if key in env.get('DEPLOY_SCENARIO'):
  42                 self.functest_yaml = dict(Config._merge_dicts(
  43                     self.functest_yaml, patch_file[key]))
  44
  45     def _parse(self, attr_now, left_parametes):
  46         for param_n, param_v in six.iteritems(left_parametes):
  47             attr_further = self._get_attr_further(attr_now, param_n)
  48             if attr_further:
  49                 setattr(self, attr_further, param_v)
  50             if isinstance(param_v, dict):
  51                 self._parse(attr_further, param_v)
  52
  53     @staticmethod
  54     def _get_attr_further(attr_now, next):  # pylint: disable=redefined-builtin
  55         return attr_now if next == 'general' else (
  56             '{}_{}'.format(attr_now, next) if attr_now else next)
  57
  58     def fill(self):
  59         try:
  60             self._parse(None, self.functest_yaml)
  61         except Exception as error:
  62             raise Exception(
  63                 'Parse config failed: {}'.format(str(error))) from error
  64
  65
  66 CONF = Config()
  67 CONF.patch_file(pkg_resources.resource_filename(
  68     'functest', 'ci/config_patch.yaml'))
  69 if env.get("POD_ARCH") in ['aarch64']:
  70     CONF.patch_file(pkg_resources.resource_filename(
  71         'functest', 'ci/config_aarch64_patch.yaml'))
  72 CONF.fill()