Tools/scripts/untabify.py

   1 #! /usr/bin/env python
   2
   3 "Replace tabs with spaces in argument files.  Print names of changed files."
   4
   5 import os
   6 import sys
   7 import string
   8 import getopt
   9
  10 def main():
  11     tabsize = 8
  12     try:
  13         opts, args = getopt.getopt(sys.argv[1:], "t:")
  14         if not args:
  15             raise getopt.error, "At least one file argument required"
  16     except getopt.error, msg:
  17         print msg
  18         print "usage:", sys.argv[0], "[-t tabwidth] file ..."
  19         return
  20     for optname, optvalue in opts:
  21         if optname == '-t':
  22             tabsize = int(optvalue)
  23
  24     for file in args:
  25         process(file, tabsize)
  26
  27 def process(file, tabsize):
  28     try:
  29         f = open(file)
  30         text = f.read()
  31         f.close()
  32     except IOError, msg:
  33         print "%s: I/O error: %s" % (`file`, str(msg))
  34         return
  35     newtext = string.expandtabs(text, tabsize)
  36     if newtext == text:
  37         return
  38     backup = file + "~"
  39     try:
  40         os.unlink(backup)
  41     except os.error:
  42         pass
  43     try:
  44         os.rename(file, backup)
  45     except os.error:
  46         pass
  47     f = open(file, "w")
  48     f.write(newtext)
  49     f.close()
  50     print file
  51
  52 if __name__ == '__main__':
  53     main()