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_filenames=[], return_first = False):
  33     """
  34     Search beneath root for files whose names are contained in the
  35     target_filenames list. If return_first is True, then return as
  36     soon as a match is found. Otherwise, return once all matching
  37     paths have been found. Either way, the result is a list containing
  38     all matched 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             for t in target_filenames:
  45                 if (f == t):
  46                     if return_first:
  47                         return [os.path.join(folder, f)]
  48                     else:
  49                         found_files.append(os.path.join(folder, f))
  50
  51     return found_files