bin/xpak-helper.py

   1 #!/usr/bin/python
   2 # Copyright 2009-2013 Gentoo Foundation
   3 # Distributed under the terms of the GNU General Public License v2
   4
   5 import sys
   6 import portage
   7 portage._internal_caller = True
   8 from portage import os
   9 from portage.util._argparse import ArgumentParser
  10
  11 def command_recompose(args):
  12
  13         usage = "usage: recompose <binpkg_path> <metadata_dir>\n"
  14
  15         if len(args) != 2:
  16                 sys.stderr.write(usage)
  17                 sys.stderr.write("2 arguments are required, got %s\n" % len(args))
  18                 return 1
  19
  20         binpkg_path, metadata_dir = args
  21
  22         if not os.path.isfile(binpkg_path):
  23                 sys.stderr.write(usage)
  24                 sys.stderr.write("Argument 1 is not a regular file: '%s'\n" % \
  25                         binpkg_path)
  26                 return 1
  27
  28         if not os.path.isdir(metadata_dir):
  29                 sys.stderr.write(usage)
  30                 sys.stderr.write("Argument 2 is not a directory: '%s'\n" % \
  31                         metadata_dir)
  32                 return 1
  33
  34         t = portage.xpak.tbz2(binpkg_path)
  35         t.recompose(metadata_dir)
  36         return os.EX_OK
  37
  38 def main(argv):
  39
  40         if argv and isinstance(argv[0], bytes):
  41                 for i, x in enumerate(argv):
  42                         argv[i] = portage._unicode_decode(x, errors='strict')
  43
  44         valid_commands = ('recompose',)
  45         description = "Perform metadata operations on a binary package."
  46         usage = "usage: %s COMMAND [args]" % \
  47                 os.path.basename(argv[0])
  48
  49         parser = ArgumentParser(description=description, usage=usage)
  50         options, args = parser.parse_known_args(argv[1:])
  51
  52         if not args:
  53                 parser.error("missing command argument")
  54
  55         command = args[0]
  56
  57         if command not in valid_commands:
  58                 parser.error("invalid command: '%s'" % command)
  59
  60         if command == 'recompose':
  61                 rval = command_recompose(args[1:])
  62         else:
  63                 raise AssertionError("invalid command: '%s'" % command)
  64
  65         return rval
  66
  67 if __name__ == "__main__":
  68         rval = main(sys.argv[:])
  69         sys.exit(rval)