+import optparse
+
+dd = get_command('dd')
+
+
+def check_writable_dir(option, opt_str, value, parser):
+ dirname = os.path.dirname(value)
+ name = os.path.basename(value)
+ if dirname and not os.path.isdir(dirname):
+ raise FatalError("`%s' is not an existing directory" % dirname)
+
+ if not name:
+ raise FatalError("`%s' is not a valid file name" % dirname)
+
+ setattr(parser.values, option.dest, value)
+
+
+def parse_options(input_args):
+ usage = "Usage: %prog [options] <input_media>"
+ parser = optparse.OptionParser(version=version, usage=usage)
+
+ parser.add_option("-f", "--force", dest="force", default=False,
+ action="store_true", help="overwrite output files if they exist")
+
+ parser.add_option("--no-sysprep", dest="sysprep", default=True,
+ help="don't perform system preperation", action="store_false")
+
+ parser.add_option("--no-shrink", dest="shrink", default=True,
+ help="don't shrink any partition", action="store_false")
+
+ parser.add_option("-o", "--outfile", type="string", dest="outfile",
+ default=None, action="callback", callback=check_writable_dir,
+ help="dump image to FILE", metavar="FILE")
+
+ parser.add_option("--enable-sysprep", dest="enabled_syspreps", default=[],
+ help="run SYSPREP operation on the input media",
+ action="append", metavar="SYSPREP")
+
+ parser.add_option("--disable-sysprep", dest="disabled_syspreps",
+ help="prevent SYSPREP operation from running on the input media",
+ default=[], action="append", metavar="SYSPREP")
+
+ parser.add_option("--print-sysprep", dest="print_sysprep", default=False,
+ help="print the enabled and disabled sysprep operations for this "
+ "input media", action="store_true")
+
+ parser.add_option("-s", "--silent", dest="silent", default=False,
+ help="silent mode, only output errors", action="store_true")
+
+ parser.add_option("-u", "--upload", dest="upload", type="string",
+ default=False, help="upload the image to pithos with name FILENAME",
+ metavar="FILENAME")
+
+ parser.add_option("-r", "--register", dest="register", type="string",
+ default=False, help="register the image to ~okeanos as IMAGENAME",
+ metavar="IMAGENAME")
+
+ options, args = parser.parse_args(input_args)
+
+ if len(args) != 1:
+ parser.error('Wrong number of arguments')
+ options.source = args[0]
+ if not os.path.exists(options.source):
+ raise FatalError("Input media `%s' is not accessible" % options.source)
+
+ if options.register and options.upload == False:
+ raise FatalError("You also need to set -u when -r option is set")
+
+ return options