bin/xpak-helper.py

   1 #!/usr/bin/python
   2 # Copyright 2009 Gentoo Foundation
   3 # Distributed under the terms of the GNU General Public License v2
   4
   5 import optparse
   6 import sys
   7 import portage
   8 from portage import os
   9
  10 def command_recompose(args):
  11
  12         usage = "usage: recompose <binpkg_path> <metadata_dir>\n"
  13
  14         if len(args) != 2:
  15                 sys.stderr.write(usage)
  16                 sys.stderr.write("2 arguments are required, got %s\n" % len(args))
  17                 return 1
  18
  19         binpkg_path, metadata_dir = args
  20
  21         if not os.path.isfile(binpkg_path):
  22                 sys.stderr.write(usage)
  23                 sys.stderr.write("Argument 1 is not a regular file: '%s'\n" % \
  24                         binpkg_path)
  25                 return 1
  26
  27         if not os.path.isdir(metadata_dir):
  28                 sys.stderr.write(usage)
  29                 sys.stderr.write("Argument 2 is not a directory: '%s'\n" % \
  30                         metadata_dir)
  31                 return 1
  32
  33         t = portage.xpak.tbz2(binpkg_path)
  34         t.recompose(metadata_dir)
  35         return os.EX_OK
  36
  37 def main(argv):
  38
  39         if argv and sys.hexversion < 0x3000000 and not isinstance(argv[0], unicode):
  40                 for i, x in enumerate(argv):
  41                         argv[i] = portage._unicode_decode(x, errors='strict')
  42
  43         valid_commands = ('recompose',)
  44         description = "Perform metadata operations on a binary package."
  45         usage = "usage: %s COMMAND [args]" % \
  46                 os.path.basename(argv[0])
  47
  48         parser = optparse.OptionParser(description=description, usage=usage)
  49         options, args = parser.parse_args(argv[1:])
  50
  51         if not args:
  52                 parser.error("missing command argument")
  53
  54         command = args[0]
  55
  56         if command not in valid_commands:
  57                 parser.error("invalid command: '%s'" % command)
  58
  59         if command == 'recompose':
  60                 rval = command_recompose(args[1:])
  61         else:
  62                 raise AssertionError("invalid command: '%s'" % command)
  63
  64         return rval
  65
  66 if __name__ == "__main__":
  67         rval = main(sys.argv[:])
  68         sys.exit(rval)