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82 lines
2.7 KiB
82 lines
2.7 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Options
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"""
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try:
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from collections import OrderedDict
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except ImportError: # pragma: no-cover
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from ordereddict import OrderedDict # pylint:disable=import-error
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import babelfish
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import yaml # pylint:disable=wrong-import-order
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from .rules.common.quantity import BitRate, FrameRate, Size
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class OrderedDictYAMLLoader(yaml.SafeLoader):
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"""
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A YAML loader that loads mappings into ordered dictionaries.
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From https://gist.github.com/enaeseth/844388
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"""
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def __init__(self, *args, **kwargs):
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yaml.SafeLoader.__init__(self, *args, **kwargs)
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self.add_constructor(u'tag:yaml.org,2002:map', type(self).construct_yaml_map)
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self.add_constructor(u'tag:yaml.org,2002:omap', type(self).construct_yaml_map)
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def construct_yaml_map(self, node):
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data = OrderedDict()
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yield data
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value = self.construct_mapping(node)
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data.update(value)
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def construct_mapping(self, node, deep=False):
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if isinstance(node, yaml.MappingNode):
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self.flatten_mapping(node)
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else: # pragma: no cover
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raise yaml.constructor.ConstructorError(None, None,
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'expected a mapping node, but found %s' % node.id, node.start_mark)
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mapping = OrderedDict()
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for key_node, value_node in node.value:
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key = self.construct_object(key_node, deep=deep)
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try:
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hash(key)
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except TypeError as exc: # pragma: no cover
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raise yaml.constructor.ConstructorError('while constructing a mapping',
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node.start_mark, 'found unacceptable key (%s)'
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% exc, key_node.start_mark)
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value = self.construct_object(value_node, deep=deep)
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mapping[key] = value
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return mapping
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class CustomDumper(yaml.SafeDumper):
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"""
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Custom YAML Dumper.
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"""
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pass # pylint:disable=unnecessary-pass
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def default_representer(dumper, data):
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"""Default representer"""
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return dumper.represent_str(str(data))
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CustomDumper.add_representer(babelfish.Language, default_representer)
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CustomDumper.add_representer(babelfish.Country, default_representer)
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CustomDumper.add_representer(BitRate, default_representer)
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CustomDumper.add_representer(FrameRate, default_representer)
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CustomDumper.add_representer(Size, default_representer)
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def ordered_dict_representer(dumper, data):
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"""OrderedDict representer"""
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return dumper.represent_mapping('tag:yaml.org,2002:map', data.items())
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CustomDumper.add_representer(OrderedDict, ordered_dict_representer)
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