pegleg/src/bin/pegleg/pegleg/engine/util/deckhand.py

47 lines
1.3 KiB
Python

from deckhand.engine import layering
from deckhand import errors as dh_errors
def load_schemas_from_docs(documents):
'''
Fills the cache of known schemas from the document set
'''
errors = []
SCHEMA_SCHEMA = "deckhand/DataSchema/v1"
schema_set = dict()
for document in documents:
if document.get('schema', '') == SCHEMA_SCHEMA:
name = document['metadata']['name']
if name in schema_set:
errors.append('Duplicate schema specified for: %s' % name)
schema_set[name] = document['data']
return schema_set, errors
def deckhand_render(documents=[],
fail_on_missing_sub_src=False,
validate=False):
errors = []
rendered_documents = []
schemas, schema_errors = load_schemas_from_docs(documents)
errors.extend(schema_errors)
try:
deckhand_eng = layering.DocumentLayering(
documents,
substitution_sources=documents,
fail_on_missing_sub_src=fail_on_missing_sub_src,
validate=validate)
rendered_documents = [dict(d) for d in deckhand_eng.render()]
except dh_errors.DeckhandException as e:
errors.append('An unknown Deckhand exception occurred while trying'
' to render documents: %s' % str(e))
return rendered_documents, errors