lib/scripts/ext_copy.py

   1 #! /usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 # file ext_copy.py
   5 # This file is part of LyX, the document processor.
   6 # Licence details can be found in the file COPYING.
   7
   8 # author Richard Heck, Alex Fernandez, Uwe Stöhr
   9
  10 # Full author contact details are available in file CREDITS
  11
  12 # Usage:
  13 # ext_copy.py [-e ext1,ext2,...] <from file> <to file>
  14
  15 # This script is to be used as a "copier" script in the sense needed by
  16 # the converter definitions. Given a <from file> and <to file>, it will copy
  17 # all files in the directory in which from_file is found that have the
  18 # extensions given in the -e argument, or all files in that directory if no
  19 # such argument is given. So, for example, we can do:
  20 #   python ext_copy.py -e png,html,css /path/from/file.html /path/to/file.html
  21 # and all html, png, and css files in /path/from/ will be copied to the
  22 # (possibly new) directory /path/to/file.html.LyXconv/.
  23 # The -t argument determines the extension added, the default being "LyXconv".
  24 # If just . is given, no extension is added.
  25
  26 import getopt, os, shutil, sys
  27 from lyxpreview_tools import error
  28
  29 def usage(prog_name):
  30     return "Usage: %s [-e extensions] [-t target extension] <from file> <to file>" % prog_name
  31
  32 def main(argv):
  33     progname = argv[0]
  34
  35     exts = [] #list of extensions for which we're checking
  36     targext = "LyXconv" #extension for target directory
  37     opts, args = getopt.getopt(sys.argv[1:], "e:t:")
  38     for o, v in opts:
  39       if o == "-e":
  40         exts = v.split(',')
  41       if o == "-t":
  42         targext = v
  43
  44     # input directory
  45     if len(args) != 2:
  46       error(usage(progname))
  47     abs_from_file = args[0]
  48     if not os.path.isabs(abs_from_file):
  49       error("%s is not an absolute file name.\n%s" % abs_from_file, usage(progname))
  50     from_dir = os.path.dirname(abs_from_file)
  51
  52     # output directory
  53     to_dir = args[1]
  54     if targext != '.':
  55       to_dir += "." + targext
  56     if not os.path.isabs(to_dir):
  57       error("%s is not an absolute file name.\n%s" % to_dir, usage(progname))
  58
  59     if not copy_all(from_dir, to_dir, exts):
  60       # some kind of failure
  61       return 1
  62     return 0
  63
  64
  65 def copy_all(from_dir, to_dir, exts):
  66     "Copy all matching files in from_dir to to_dir"
  67     for file in os.listdir(from_dir):
  68       if os.path.isdir(os.path.join(from_dir, file)):
  69         copy_all(os.path.join(from_dir, file), os.path.join(to_dir, file), exts)
  70         continue
  71       junk, ext = os.path.splitext(os.path.basename(file))
  72       ext = ext.lower()[1:] #strip the leading dot
  73       # only create a directory and copy files when either
  74       # exts is empty or when ext is in the exts list
  75       if (exts) and (ext not in exts):
  76         continue
  77       if not create_dir(to_dir):
  78         return False
  79       from_file = os.path.join(from_dir, file)
  80       to_file  = os.path.join(to_dir, file)
  81       shutil.copyfile(from_file, to_file)
  82       try:
  83         shutil.copymode(from_file, to_file)
  84       except:
  85         pass
  86     return True
  87
  88
  89 def create_dir(new_dir):
  90     "Try to create the output directory if it doesn't exist"
  91     if not os.path.isdir(new_dir):
  92       try:
  93         os.makedirs(new_dir)
  94       except:
  95         error("Unable to create %s" % new_dir)
  96         return False
  97     return True
  98
  99 if __name__ == "__main__":
 100     main(sys.argv)