Merge "Convert fileslist_util.py to python 3"

#!/usr/bin/env python

#!/usr/bin/env python3

#

# Copyright (C) 2016 The Android Open Source Project

#

# limitations under the License.

#

import getopt, json, sys

import argparse

import json

import sys

def PrintFileNames(path):

  with open(path) as jf:

  with open(path) as jf:

    data = json.load(jf)

  for line in data:

    print "{0:12d}  {1}".format(line["Size"], line["Name"])

def PrintUsage(name):

  print("""

Usage: %s -[nc] json_files_list

 -n produces list of files only

 -c produces classic installed-files.txt

""" % (name))

def main(argv):

  try:

    opts, args = getopt.getopt(argv[1:], "nc", "")

  except getopt.GetoptError, err:

    print(err)

    PrintUsage(argv[0])

    sys.exit(2)

  if len(opts) == 0:

    print("No conversion option specified")

    PrintUsage(argv[0])

    sys.exit(2)

  if len(args) == 0:

    print("No input file specified")

    PrintUsage(argv[0])

    sys.exit(2)

  for o, a in opts:

    if o == ("-n"):

      PrintFileNames(args[0])

      sys.exit()

    elif o == ("-c"):

      PrintCanonicalList(args[0])

      sys.exit()

    print(f"{line['Size']:12d}  {line['Name']}")

def main():

  parser = argparse.ArgumentParser()

  parser.add_argument("-n", action="store_true",

                      help="produces list of files only")

  parser.add_argument("-c", action="store_true",

                      help="produces classic installed-files.txt")

  parser.add_argument("json_files_list")

  args = parser.parse_args()

  if args.n and args.c:

    sys.exit("Cannot specify both -n and -c")

  elif args.n:

    PrintFileNames(args.json_files_list)

  elif args.c:

    PrintCanonicalList(args.json_files_list)

  else:

      assert False, "Unsupported option"

    sys.exit("No conversion option specified")

if __name__ == '__main__':

  main(sys.argv)

  main()