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| import argparse |
| import json |
| import sys |
|
|
| import jsonpointer |
|
|
| parser = argparse.ArgumentParser( |
| description='Resolve a JSON pointer on JSON files') |
|
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| |
| ptr_group = parser.add_mutually_exclusive_group(required=True) |
|
|
| ptr_group.add_argument('-f', '--pointer-file', type=argparse.FileType('r'), |
| nargs='?', |
| help='File containing a JSON pointer expression') |
|
|
| ptr_group.add_argument('POINTER', type=str, nargs='?', |
| help='A JSON pointer expression') |
|
|
| parser.add_argument('FILE', type=argparse.FileType('r'), nargs='+', |
| help='Files for which the pointer should be resolved') |
| parser.add_argument('--indent', type=int, default=None, |
| help='Indent output by n spaces') |
| parser.add_argument('-v', '--version', action='version', |
| version='%(prog)s ' + jsonpointer.__version__) |
|
|
|
|
| def main(): |
| try: |
| resolve_files() |
| except KeyboardInterrupt: |
| sys.exit(1) |
|
|
|
|
| def parse_pointer(args): |
| if args.POINTER: |
| ptr = args.POINTER |
| elif args.pointer_file: |
| ptr = args.pointer_file.read().strip() |
| else: |
| parser.print_usage() |
| sys.exit(1) |
|
|
| return ptr |
|
|
|
|
| def resolve_files(): |
| """ Resolve a JSON pointer on JSON files """ |
| args = parser.parse_args() |
|
|
| ptr = parse_pointer(args) |
|
|
| for f in args.FILE: |
| doc = json.load(f) |
| try: |
| result = jsonpointer.resolve_pointer(doc, ptr) |
| print(json.dumps(result, indent=args.indent)) |
| except jsonpointer.JsonPointerException as e: |
| print('Could not resolve pointer: %s' % str(e), file=sys.stderr) |
|
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|
|
| if __name__ == "__main__": |
| main() |
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|