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"""
Commands for validating ASDF files
"""
import asdf
from .main import Command
__all__ = ["validate"]
class Validate(Command):
@classmethod
def setup_arguments(cls, subparsers):
parser = subparsers.add_parser(
"validate",
help="Validates an ASDF file.",
description=(
"Validates tree against all tagged schemas (and optionally a custom schema) "
"and blocks with stored checksums."
),
)
parser.add_argument("filename", help="path to ASDF file")
parser.add_argument(
"--custom-schema",
type=str,
help="path or URI of custom schema",
)
parser.add_argument(
"--skip-block-validation",
default=False,
action="store_true",
help="Do not compare blocks against stored checksums.",
)
parser.set_defaults(func=cls.run)
return parser
@classmethod
def run(cls, args):
validate(args.filename, args.custom_schema, args.skip_block_validation)
def validate(filename, custom_schema, skip_block_validation):
# if we are skipping checksums we can lazy load, otherwise don't
with asdf.open(
filename,
custom_schema=custom_schema,
validate_checksums=not skip_block_validation,
lazy_load=skip_block_validation,
) as af: # noqa: F841
msg = f"{filename} is valid"
if custom_schema:
msg += f", conforms to {custom_schema}"
if not skip_block_validation:
msg += ", and block checksums match contents"
print(msg)
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