forked from LBRYCommunity/lbry-sdk
28 lines
1.1 KiB
Python
28 lines
1.1 KiB
Python
import json
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BASE_METADATA_FIELDS = ['title', 'description', 'author', 'language', 'license', 'content-type']
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OPTIONAL_METADATA_FIELDS = ['thumbnail', 'preview', 'fee', 'contact', 'pubkey']
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#v0.0.1 metadata
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METADATA_REVISIONS = {'0.0.1': {'required': BASE_METADATA_FIELDS, 'optional': OPTIONAL_METADATA_FIELDS}}
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#v0.0.2 metadata additions
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METADATA_REVISIONS['0.0.2'] = {'required': ['nsfw'], 'optional': []}
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class Metadata(dict):
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def __init__(self, metadata):
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dict.__init__(self)
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self.metaversion = None
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m = metadata.copy()
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for version in METADATA_REVISIONS:
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for k in METADATA_REVISIONS[version]['required']:
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assert k in metadata, "Missing required metadata field: %s" % k
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self.update({k: m.pop(k)})
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for k in METADATA_REVISIONS[version]['optional']:
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if k in metadata:
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self.update({k: m.pop(k)})
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if not len(m):
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self.metaversion = version
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break
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assert m == {}, "Unknown metadata keys: %s" % json.dumps(m.keys()) |