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Add option to read from stdin

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This commit is contained in:
Lorenzo Figini 2024-05-17 10:58:20 +02:00
parent 1938aa23b7
commit 3ed93dbc9b
1 changed files with 8 additions and 7 deletions
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15
schemas/validate.py
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@ -1,4 +1,5 @@
import argparse import argparse
import sys
import json import json
import jsonschema import jsonschema
import jsonschema.protocols import jsonschema.protocols
@ -11,14 +12,14 @@ from referencing.jsonschema import DRAFT202012
parser = argparse.ArgumentParser( parser = argparse.ArgumentParser(
description="Validate a JSON document against a JSON schema" description="Validate a JSON document against a JSON schema"
) )
parser.add_argument("file", type=str, help="the JSON file to validate") parser.add_argument("-f", "--file",
help="file containing the JSON document to validate. " +
"If absent, the JSON document is read from the standard input")
parser.add_argument("-s", "--schema", required=True, parser.add_argument("-s", "--schema", required=True,
help="file containing the schema definition." help="file containing the schema definition"
) )
parser.add_argument("-r", "--resource", action="append", default=[], parser.add_argument("-r", "--resource", nargs="+", default=[],
help="additional schemas to be added to the registry " + help="additional schemas to be added to the registry for reference resolution")
"for reference resolution. Multiple schema files can " +
"be added by specifying the option multiple times.")
if __name__ == "__main__": if __name__ == "__main__":
args = parser.parse_args() args = parser.parse_args()
@ -34,7 +35,7 @@ if __name__ == "__main__":
) )
registry = resource @ registry registry = resource @ registry
# Load the JSON document to validate # Load the JSON document to validate
with open(file=args.file, mode="r") as f: with open(file=args.file, mode="r") if args.file else sys.stdin as f:
document = json.load(f) document = json.load(f)
# Set the validator with the desired schema and check the schema itself before validating the document # Set the validator with the desired schema and check the schema itself before validating the document
validator = jsonschema.validators.validator_for(schema)(schema, registry=registry) validator = jsonschema.validators.validator_for(schema)(schema, registry=registry)