blob: edcc7e60fba8925310f525b1607b68004361988e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#!/usr/bin/env python3
"""
Reads key-prefixed JSON lines from stdin, and writes out to gzipped files under
./partitioned/.
Skips empty keys and "null" (to handle a jq common-case).
Eg, for tab-separated input:
something {"a": 1}
something2 {"b": 2}
Will write to ./partitioned/something.json.gz:
{"a": 1}
(and "b" object to ./partitioned/something2.json.gz)
"""
import os, sys, gzip
def run():
last_prefix = None
f = None
os.makedirs('partitioned', exist_ok=True)
for line in sys.stdin:
(prefix, obj) = line.strip().split('\t')[:2]
if not prefix or prefix == "null":
continue
if prefix != last_prefix:
if f:
f.close()
f = gzip.GzipFile('partitioned/{}.json.gz'.format(prefix), 'a')
f.write(obj.encode('utf-8'))
f.write(b"\n")
last_prefix = prefix
if f:
f.close()
if __name__=="__main__":
run()
|
