add preserve-switch to kv_parse

kv_parse.py

@@ -5,6 +5,7 @@ import argparse
 import sys
 
 parser = argparse.ArgumentParser()
+parser.add_argument("-p", "--preserve", action='store_true', help="preserve original logline in dict")
 parser.add_argument('infile', nargs='?', type=argparse.FileType('r'), default=sys.stdin)
 parser.add_argument('outfile', nargs='?', type=argparse.FileType('w'), default=sys.stdout)
 args = parser.parse_args()
@@ -20,8 +21,8 @@ for line in data:
     matches=kv_pat.findall(line)
     for match in matches:
         line_dict[match[0]] = match[1].strip('"')
+    if args.preserve:
+        line_dict['original_logline'] = line
     log.append(line_dict) 
 
 json.dump(log,args.outfile)
-    
-