format-json: new tool to format software release JSON

format-json

+#!/usr/bin/env python
+r"""Command-line tool to format software release JSON for slapos.
+
+Inspired by json.tool from python
+
+Usage::
+
+    format-json infile outfile
+
+"""
+
+import os
+import sys
+import json
+import collections
+
+
+def main():
+  if len(sys.argv) != 3:
+    raise SystemExit(sys.argv[0] + " infile outfile")
+
+  with open(sys.argv[1], 'rb') as infile:
+    try:
+      obj = json.load(infile, object_pairs_hook=collections.OrderedDict)
+    except ValueError, e:
+      raise SystemExit(e)
+
+  with open(sys.argv[2], 'wb') as outfile:
+    json.dump(obj, outfile, sort_keys=False, indent=2, separators=(',', ': '))
+    outfile.write('\n')
+
+
+if __name__ == '__main__':
+  main()