1#!/usr/bin/env python
2#
3# Copyright 2017 - The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#     http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17"""gsi_util command-line utility."""
18
19import argparse
20import logging
21import sys
22
23
24class GsiUtil(object):
25  """Object for gsi_util command line tool."""
26
27  _GSI_UTIL_VERSION = '1.0'
28
29  # Adds gsi_util COMMAND here.
30  # TODO(bowgotsai): auto collect from gsi_util/commands/*.py
31  _COMMANDS = ['flash_gsi', 'pull', 'dump', 'check_compat']
32
33  _LOGGING_FORMAT = '%(message)s'
34  _LOGGING_LEVEL = logging.WARNING
35
36  @staticmethod
37  def _get_module_name(command):
38    return 'gsi_util.commands.' + command
39
40  def run(self, argv):
41    """Command-line processor."""
42
43    # Sets up default logging.
44    logging.basicConfig(format=self._LOGGING_FORMAT, level=self._LOGGING_LEVEL)
45
46    # Adds top-level --version/--debug argument.
47    parser = argparse.ArgumentParser()
48    parser.add_argument('-v', '--version', action='version',
49                        version='%(prog)s {}'.format(self._GSI_UTIL_VERSION))
50    parser.add_argument(
51        '-d', '--debug', help='debug mode.', action='store_true')
52
53    # Adds subparsers for each COMMAND.
54    subparsers = parser.add_subparsers(title='COMMAND')
55    for command in self._COMMANDS:
56      module_name = self._get_module_name(command)
57      mod = __import__(module_name, globals(), locals(), ['setup_command_args'])
58      mod.setup_command_args(subparsers)
59
60    args = parser.parse_args(argv[1:])
61    if args.debug:
62      logging.getLogger().setLevel(logging.DEBUG)
63
64    try:
65      args.func(args)
66    except Exception as e:
67      logging.error('%s: %s', argv[0], e.message)
68      if args.debug:
69        logging.exception(e)
70      sys.exit(1)
71
72
73if __name__ == '__main__':
74  tool = GsiUtil()
75  tool.run(sys.argv)
76