[Findit] Initiate Findit for crash.

tools/findit/utils.py

+# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import re
+import sys
+
+
+GIT_HASH_PATTERN = re.compile(r'^[0-9a-fA-F]{40}$')
+
+
+def GetOSName(platform_name=sys.platform):
+  if platform_name == 'cygwin' or platform_name.startswith('win'):
+    return 'win'
+  elif platform_name.startswith('linux'):
+    return 'unix'
+  elif platform_name.startswith('darwin'):
+    return 'mac'
+  else:
+    return platform_name
+
+
+def IsGitHash(revision):
+  return GIT_HASH_PATTERN.match(str(revision))