-s option added to find similar documents

By default, the index is not storing the vector of the document (Whoosh
document schema). It won't work if you don't change the schema of the
index for the content. It depends of your storage strategy.

bin/tests/indexer_lookup.py

@@ -35,11 +35,13 @@ argParser.add_argument('-n', action='store_true', default=False, help='return nu
 argParser.add_argument('-t', action='store_true', default=False, help='dump top 500 terms')
 argParser.add_argument('-l', action='store_true', default=False, help='dump all terms encountered in indexed documents')
 argParser.add_argument('-f', action='store_true', default=False, help='dump each matching document')
+argParser.add_argument('-s', action='append', help='search similar documents')
 
 args = argParser.parse_args()
 
 from whoosh import index
 from whoosh.fields import *
+import whoosh
 schema = Schema(title=TEXT(stored=True), path=ID(stored=True), content=TEXT)
 
 ix = index.open_dir(indexpath)
@@ -62,6 +64,16 @@ if args.t:
         print (x)
     exit(0)
 
+if args.s:
+    # By default, the index is not storing the vector of the document (Whoosh
+    # document schema). It won't work if you don't change the schema of the
+    # index for the content. It depends of your storage strategy.
+    docnum = ix.searcher().document_number(path=args.s)
+    r = ix.searcher().more_like(docnum, "content")
+    for hit in r:
+            print(hit["path"])
+    exit(0)
+
 if args.q is None:
     argParser.print_help()
     exit(1)