Files
OpenNetworkLinux/tools/sjson.py
2018-01-11 20:58:53 +00:00

87 lines
2.4 KiB
Python
Executable File

#!/usr/bin/python2
############################################################
#
# Simple JSON Generator
#
############################################################
import argparse
import yaml
import json
import os
import sys
def setkeypath(d, kvt):
"""Set a key tree to a value in the given dict.
The key tree is specified as k1.k2..kN-1.kN"""
(key, value) = kvt
ktree = key.split('.')
for k in ktree:
if k == ktree[-1]:
d[k] = value
return
elif k not in d:
d[k] = {}
d = d[k]
ap=argparse.ArgumentParser(description="Simple JSON Generator.")
ap.add_argument("--in", metavar='FILENAME', help="Load json source data.", dest='_in')
ap.add_argument("--kj", nargs=2, metavar=('KEY', 'FILE|STR'), help="Add json data.")
ap.add_argument("--ky", nargs=2, metavar=('KEY', 'FILE|STR'), help="Add yaml jdata.")
ap.add_argument("--kv", nargs=2, metavar=('KEY', 'VALUE'), help="Add key/value pair.")
ap.add_argument("--kl", nargs='+', metavar=('KEY', 'ENTRY'), help="Add key/list pair.")
ap.add_argument("--out", metavar='FILENAME', help="Write output to the given file. The default is stdout")
ap.add_argument("--indent", nargs=1, help="Json output indentation value. Default is 2", default=2)
ap.add_argument("--no-nl", action='store_true', help="No newline at the end of the output.")
ap.add_argument("--inout", metavar='FILENAME', help="Modify. Equivalent to --in FILENAME --out FILENAME")
ops = ap.parse_args();
if ops.inout:
ops._in = ops.inout
ops.out = ops.inout
g_data={}
if ops._in:
try:
g_data = yaml.load(open(ops._in))
except:
g_data = json.load(open(ops._in))
if ops.kj:
(k, j) = ops.kj
if os.path.exists(j):
v = json.load(open(j))
else:
v = json.loads(j)
setkeypath(g_data, (k, v))
if ops.ky:
(k, y) = ops.ky
if os.path.exists(y):
v = yaml.load(open(y))
else:
v = yaml.load(y)
setkeypath(g_data, (k, v))
if ops.kv:
setkeypath(g_data, ops.kv)
if ops.kl:
k = ops.kl.pop(0)
setkeypath(g_data, (k, ops.kl))
out=sys.stdout
if ops.out and ops.out not in ['-', 'stdout']:
print ops.out
out = open(ops.out, "w")
json.dump(g_data, out, indent=ops.indent)
if not ops.no_nl:
out.write('\n')