python/auxiliar/mirrortree.py

   1 #!@PYTHON@
   2
   3 import re
   4 import os
   5
   6 def new_link_path (link, dir, r):
   7     l = link.split ('/')
   8     d = dir.split ('/')
   9     i = 0
  10     while i < len(d) and i < len(l) and l[i] == '..':
  11         if r.match (d[i]):
  12             del l[i]
  13         else:
  14             i += 1
  15     return '/'.join ([x for x in l if not r.match (x)])
  16
  17 def walk_tree (tree_roots = [],
  18                process_dirs = '.*',
  19                exclude_dirs = '',
  20                find_files = '.*',
  21                exclude_files = ''):
  22     """Walk directory trees and.returns (dirs, symlinks, files, extra_files) tuple.
  23
  24     Arguments:
  25      tree_roots=DIRLIST      use DIRLIST as tree roots list
  26      process_dir=PATTERN      only process files in directories named PATTERN
  27      exclude_dir=PATTERN      don't recurse into directories named PATTERN
  28      find_files=PATTERN    filters files which are hardlinked
  29      exclude_files=PATTERN    exclude files named PATTERN
  30     """
  31     find_files_re = re.compile (find_files)
  32     exclude_dirs_re = re.compile (exclude_dirs)
  33     exclude_files_re = re.compile (exclude_files)
  34     process_dirs_re = re.compile (process_dirs)
  35
  36     dirs_paths = []
  37     symlinks_paths = []
  38     files_paths = []
  39
  40     for d in tree_roots:
  41         for current_dir, dirs, files in os.walk(d):
  42             i = 0
  43             while i < len(dirs):
  44                 if exclude_dirs_re.search (os.path.join (current_dir, dirs[i])):
  45                     del dirs[i]
  46                 else:
  47                     p = os.path.join (current_dir, dirs[i])
  48                     if os.path.islink (p):
  49                         symlinks_paths.append (p)
  50                     i += 1
  51             if not process_dirs_re.search (current_dir):
  52                 continue
  53             dirs_paths.append (current_dir)
  54             for f in files:
  55                 if exclude_files_re.match (f):
  56                     continue
  57                 p = os.path.join (current_dir, f)
  58                 if os.path.islink (p):
  59                     symlinks_paths.append (p)
  60                 elif find_files_re.match (f):
  61                     files_paths.append (p)
  62     return (dirs_paths, symlinks_paths, files_paths)