Index: clang-tidy/rename_check.py
===================================================================
--- /dev/null
+++ clang-tidy/rename_check.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+#
+#===- add_new_check.py - clang-tidy check generator ----------*- python -*--===#
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+#===------------------------------------------------------------------------===#
+
+import os
+import re
+import sys
+import glob
+
+def replaceInFile(fileName, sFrom, sTo):
+    txt = None
+    with open(fileName, "r") as f:
+        txt = f.read()
+
+    if sFrom not in txt:
+        return
+
+    txt = txt.replace(sFrom, sTo)
+    print("Replace %s -> %s in %s" % (sFrom, sTo, fileName))
+    with open(fileName, "w") as f:
+        f.write(txt)
+
+def fileRename(fileName, sFrom, sTo):
+    if sFrom not in fileName:
+        return
+    print("Rename %s -> %s" % (fileName, fileName.replace(sFrom, sTo)))
+
+    os.rename(fileName, fileName.replace(sFrom, sTo))
+
+def main():
+  if len(sys.argv) != 4:
+    print('Usage: rename_check.py <module> <check>, e.g.\n')
+    print('rename_check.py misc awesome-functions new-awesome-function\n')
+    return
+
+  module = sys.argv[1]
+  check_name = sys.argv[2]
+  check_name_camel = ''.join(map(lambda elem: elem.capitalize(),
+                                 check_name.split('-'))) + 'Check'
+  check_name_new = sys.argv[3]
+  check_name_new_camel = ''.join(map(lambda elem: elem.capitalize(),
+                                 check_name_new.split('-'))) + 'Check'
+
+  clang_tidy_path = os.path.dirname(sys.argv[0])
+  module_path = os.path.join(clang_tidy_path, module)
+
+  header_guard_old = module.upper() + '_' + check_name.upper().replace('-', '_')
+  header_guard_new = module.upper() + '_' + check_name_new.upper().replace('-', '_')
+
+  files =  glob.glob(os.path.join(module_path, '*'))
+  files += glob.glob(os.path.join(clang_tidy_path,'..', 'test', 'clang-tidy', '*'))
+  files += glob.glob(os.path.join(clang_tidy_path,'..', 'docs', 'clang-tidy', 'checks', '*'))
+  for filename in files:
+      if not os.path.isfile(filename):
+          continue
+      replaceInFile(filename, header_guard_old, header_guard_new)
+      replaceInFile(filename, check_name, check_name_new)
+      replaceInFile(filename, check_name_camel, check_name_new_camel)
+      fileRename(filename, check_name, check_name_new)
+      fileRename(filename, check_name_camel, check_name_new_camel)
+
+
+if __name__ == '__main__':
+  main()