public upgrade py

tools/upgrade/my_utils.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import mysql.connector
+from mysql.connector import errorcode
+from my_error import MyError
+from actions import QueryCursor
+import logging
+
+def results_to_str(desc, results):
+  ret_str = ''
+  max_width_list = []
+  for col_desc in desc:
+    max_width_list.append(len(str(col_desc[0])))
+  col_count = len(max_width_list)
+  for result in results:
+    if col_count != len(result):
+      raise MyError('column count is not equal, desc column count: {0}, data column count: {1}'.format(col_count, len(result)))
+    for i in range(0, col_count):
+      result_col_width = len(str(result[i]))
+      if max_width_list[i] < result_col_width:
+        max_width_list[i] = result_col_width
+  # 打印列名
+  for i in range(0, col_count):
+    if i > 0:
+      ret_str += '    ' # 空四格
+    ret_str += str(desc[i][0])
+    # 补足空白
+    for j in range(0, max_width_list[i] - len(str(desc[i][0]))):
+      ret_str += ' '
+  # 打印数据
+  for result in results:
+    ret_str += '\n' # 先换行
+    for i in range(0, col_count):
+      if i > 0:
+        ret_str += '    ' # 空四格
+      ret_str += str(result[i])
+      # 补足空白
+      for j in range(0, max_width_list[i] - len(str(result[i]))):
+        ret_str += ' '
+  return ret_str
+
+def query_and_dump_results(query_cur, sql):
+  (desc, results) = query_cur.exec_query(sql)
+  result_str = results_to_str(desc, results)
+  logging.info('dump query results, sql: %s, results:\n%s', sql, result_str)
+