jl-to-json-struct

#!/usr/bin/env python
"""
Restructure jsonlines file to structured json hash table

usage: jl-to-map-struct foo.jl 'name' > foo.json

License: GPLv3
Author: Bernardas Ališauskas <bernardas.alisauskas@pm.me>
"""
import json

import click
from click import echo


@click.command()
@click.argument('file', type=click.File('r'))
@click.argument('key', default='id')
def main(file, key):
    """restructure jsonlines file to structured json hash table by given key"""
    data = {}
    for line in file:
        d = json.loads(line)
        if '.' in key:
            id = d
            for k in key.split('.'):
                id = id[k]
        else:
            id = id[k]
        data[id] = d
    echo(json.dumps(data, indent=2, ensure_ascii=False))
    echo(f'converted {len(data)} items', err=True)


if __name__ == '__main__':
    main()