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#!/usr/bin/python
import argparse
import json
import sys
def parse_args():
parser = argparse.ArgumentParser(
description="""Extracts information from a json file by navigating the JSON object using a
sequence of property accessors and returning the JSON subtree, or the raw data, found
at that location."""
)
parser.add_argument(
'-f', '--file',
metavar='<project.json>',
help="Path to project.json file to parse",
required=True,
)
parser.add_argument(
'property',
metavar='property_name',
help="""Name of property to extract using object notation.
Pass multiple values to drill down into nested objects (in order).""",
nargs='*',
)
parser.add_argument(
'-r', '--raw',
help="""Dumps the raw object found at the requested location.
If omitted, returns a JSON formatted object instead.""",
action='store_true',
default=False
)
return parser.parse_args()
def main():
args = parse_args()
with open(args.file) as json_file:
selected_property = json.load(json_file)
for prop in args.property:
selected_property = selected_property[prop]
if args.raw:
print(selected_property)
else:
print(json.dumps(selected_property))
return 0
if __name__ == "__main__":
sys.exit(main())
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