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"""
Commands for displaying summaries of ASDF trees
"""
import asdf
from .main import Command
__all__ = ["info"]
class Info(Command):
@classmethod
def setup_arguments(cls, subparsers):
parser = subparsers.add_parser(
"info",
help="Print a rendering of an ASDF tree.",
description="""Show the contents of an ASDF file by rendering tree contents as text.
For large files max-rows and max-cols can be used to truncate the output to improve
readability. When a file contains more lines to display than max-rows the
deepest parts of the tree will be hidden with a message saying how many
rows are hidden.""",
)
parser.add_argument("filename", help="ASDF file to render")
parser.add_argument(
"--max-rows", type=int, help="Maximum number of lines to print. If not provided all lines will be shown."
)
parser.add_argument(
"--max-cols", type=int, help="Maximum length of line. If not provided lines will have no length limit."
)
parser.add_argument(
"--show-values",
dest="show_values",
action="store_true",
help="Display primitive values in the rendered tree (by default, enabled).",
)
parser.add_argument("--no-show-values", dest="show_values", action="store_false")
parser.set_defaults(show_values=True)
parser.set_defaults(func=cls.run)
return parser
@classmethod
def run(cls, args):
info(args.filename, args.max_rows, args.max_cols, args.show_values)
def info(filename, max_rows, max_cols, show_values):
with asdf.open(filename) as af:
af.info(max_rows, max_cols, show_values)
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