src/FileUtils.py

   1 """
   2 Utility functions for working with the filesystem, generally modeled
   3 after useful shell commands.
   4 """
   5
   6 import os
   7
   8
   9 def rm_f(path):
  10     """
  11     Remove (unlink) a file, ignoring any exceptions that may be
  12     thrown.
  13     """
  14     try:
  15         os.remove(path)
  16     except:
  17         pass
  18
  19
  20 def mkdir_p(path, mode):
  21     """
  22     Create a directory hierarchy, ignoring any exceptions that may be
  23     thrown.
  24     """
  25     try:
  26         os.makedirs(path, mode)
  27     except:
  28         pass
  29
  30
  31
  32 def find_file_paths(root, target_filename, return_first = False):
  33     """
  34     Search beneath root for files named target_filename. If
  35     return_first is True, then return as soon as a match is
  36     found. Otherwise, return once all matching paths have been
  37     found. Either way, the result is a list containing all matched
  38     paths (even if we only matched one).
  39     """
  40     found_files = []
  41
  42     for folder, subfolders, files in os.walk(root):
  43         for f in files:
  44             if (f == target_filename):
  45                 if return_first:
  46                     return [os.path.join(folder, f)]
  47                 else:
  48                     found_files.append(os.path.join(folder, f))
  49
  50     return found_files