added the CLI

Signed-off-by: Pratikrocks <pratikrocks.dey11@gmail.com>

Author: pratik0316

src/deltacode/__init__.py

@@ -345,6 +345,25 @@ def to_dict(self):
             ('new', new_file),
             ('old', old_file),
         ])
+    def __str__(self):
+        
+        if self.old_file:
+            old_file_path = self.old_file.original_path
+        else:
+            old_file_path = "null"
+
+        if self.new_file:
+            new_file_path = self.new_file.original_path
+        else:
+            new_file_path = "null"
+
+        return (
+                "    status: " + str(self.status) + "\n"
+                "    factors: [" + ", ".join(self.factors) + "]\n" +
+                "    score: " + str(self.score) + "\n"+
+                "    new_file: " + new_file_path + "\n"+
+                "    old_file: " + old_file_path + "\n" 
+               )
 
 class Stat(object):
     """

src/deltacode/cli.py

@@ -50,11 +50,31 @@ def write_json(deltacode, outfile, all_delta_types=False):
         ('deltas_count', len([d for d in deltas(deltacode, all_delta_types)])),
         ('delta_stats', deltacode.stats.to_dict()),
         ('deltas', deltas(deltacode, all_delta_types))
-    ])
+    ])  
+
+    try:
+
+        simplejson.dump(results, outfile, iterable_as_array=True, indent=2)
+        outfile.write('\n')    
+        if outfile.name != '<stdout>' : 
+            "This condition arises when we are required to print in the json file and the value of -j in not the console terminal" 
+            click.echo('deltas_count: {}'.format(len([d for d in deltas(deltacode, all_delta_types)])))
+            click.echo('delta_stats: ')
+            for stat in deltacode.stats.to_dict():
+                click.echo("""   "{}": {}""".format(str(stat),deltacode.stats.to_dict()[stat]))  
+            # TODO: add toggle for pretty printing
+
+            delta_count = 1
+            for delta in deltacode.deltas :
+                if delta.status != "unmodified":
+                        click.echo("delta {}".format(delta_count))
+                        click.echo(delta)
+                        delta_count += 1
 
-    # TODO: add toggle for pretty printing
-    simplejson.dump(results, outfile, iterable_as_array=True, indent=2)
-    outfile.write('\n')
+    except Exception as e:
+        "This exception arises when outfile has no name attribute"
+        simplejson.dump(results, outfile, iterable_as_array=True, indent=2)
+        outfile.write('\n')    
 
 
 def print_version(ctx, param, value):

src/deltacode/models.py

@@ -155,7 +155,7 @@ def index_files(self, index_key='path'):
         keyed by the File object's 'path' variable.  This function does not
         currently catch the AttributeError exception.
         """
-        index = {}
+        index = OrderedDict()
 
         for f in self.files:
             key = getattr(f, index_key)