add libchat db

libchat/create_db.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python2
+# -*- coding: UTF-8 -*-
+# File: create_table.py
+# Date: Wed Mar 25 16:43:22 2015 +0800
+# Author: Yuxin Wu <[email protected]>
+
+import sys
+import os
+
+from libchat import SqliteLibChat
+
+if len(sys.argv) != 2:
+    print "Usage: {} <DB file name>"
+    sys.exit()
+
+db_name = sys.argv[1]
+
+if os.path.exists(db_name):
+    delete = raw_input("DB exists. Delete ? (y/n)")
+    if delete == 'y':
+        os.unlink(db_name)
+    else:
+        sys.exit()
+
+db = SqliteLibChat(db_name)
+db.create()