#!/usr/bin/python3.2

# json beautifier, to make pretty json...

# This script is dangerous - DO NOT USE IT.
# todo:
#    -create temp files, delete original files only if target is good
#    -make it work with pipes
#

import sys
import json
import os

l = len(sys.argv)
if l < 2 or l > 3:
  raise SyntaxError ("Wrong number of arguments.")

deltrgt = False
if l >= 2:
  src = trgt = sys.argv[1]

if l == 3:
  trgt = sys.argv[2]
  deltrgt = True


f = open(src)
obj = json.load(f)
f.close()
os.rename(src, trgt)

f = open(trgt, mode='w')
json.dump(obj, f, sort_keys=True, indent=2)