1c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)# Copyright (c) 2013 The Chromium Authors. All rights reserved.
2c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)# Use of this source code is governed by a BSD-style license that can be
3c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)# found in the LICENSE file.
4c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
5c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)from pylib import cmd_helper
6c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
7c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
8c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)def GetGitHeadSHA1(in_directory):
9c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  """Returns the git hash tag for the given directory.
10c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  Args:
12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)    in_directory: The directory where git is to be run.
13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  """
14c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  command_line = ['git', 'log', '-1', '--pretty=format:%H']
15c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  output = cmd_helper.GetCmdOutput(command_line, cwd=in_directory)
16c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  return output[0:40]
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