add "jsondiff" commandline utility

bin/jsondiff

@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from __future__ import print_function
+
+import sys
+import os.path
+import json
+import jsonpatch
+import argparse
+
+
+parser = argparse.ArgumentParser(description='Diff two JSON files')
+parser.add_argument('FILE1', type=argparse.FileType('r'))
+parser.add_argument('FILE2', type=argparse.FileType('r'))
+parser.add_argument('--indent', type=int, default=None,
+                    help='Indent output by n spaces')
+parser.add_argument('-v', '--version', action='version',
+                    version='%(prog)s ' + jsonpatch.__version__)
+
+
+def main():
+    try:
+        diff_files()
+    except KeyboardInterrupt:
+        sys.exit(1)
+
+
+def diff_files():
+    """ Diffs two JSON files and prints a patch """
+    args = parser.parse_args()
+    doc1 = json.load(args.FILE1)
+    doc2 = json.load(args.FILE2)
+    patch = jsonpatch.make_patch(doc1, doc2)
+    print(json.dumps(patch.patch, indent=args.indent))
+
+
+if __name__ == "__main__":
+    main()

setup.py

@@ -52,5 +52,10 @@ setup(name=PACKAGE,
       url=WEBSITE,
       py_modules=MODULES,
       package_data={'': ['requirements.txt']},
+      scripts=['bin/jsondiff'],
+      entry_poimts = {
+        'console_scripts': [
+            'jsondiff = jsondiff:main',
+        ]},
       **OPTIONS
 )