44 def mkdir_p(directory):  argument
48     if directory == "":
53         os.makedirs(directory)
55         if e.errno == errno.EEXIST and os.path.isdir(directory):
61 def command_output(cmd, directory):  argument
69                          cwd=directory,
74         raise RuntimeError('Failed to run %s in %s' % (cmd, directory))
78 def deduce_software_version(directory):  argument
90     changes_file = os.path.join(directory, 'CHANGES')
99 def describe(directory):  argument
111         return command_output(['git', 'describe'], directory).rstrip().decode()
115                 ['git', 'rev-parse', 'HEAD'], directory).rstrip().decode()