# -*- coding:utf-8 -*-
#
# Copyright (C) 2009 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from __future__ import print_function
from optparse import SUPPRESS_HELP
import sys

from command import Command, MirrorSafeCommand
from subcmds.sync import _PostRepoUpgrade
from subcmds.sync import _PostRepoFetch


class Selfupdate(Command, MirrorSafeCommand):
  common = False
  helpSummary = "Update repo to the latest version"
  helpUsage = """
%prog
"""
  helpDescription = """
The '%prog' command upgrades repo to the latest version, if a
newer version is available.

Normally this is done automatically by 'repo sync' and does not
need to be performed by an end-user.
"""

  def _Options(self, p):
    g = p.add_option_group('repo Version options')
    g.add_option('--no-repo-verify',
                 dest='repo_verify', default=True, action='store_false',
                 help='do not verify repo source code')
    g.add_option('--repo-upgraded',
                 dest='repo_upgraded', action='store_true',
                 help=SUPPRESS_HELP)

  def Execute(self, opt, args):
    rp = self.manifest.repoProject
    rp.PreSync()

    if opt.repo_upgraded:
      _PostRepoUpgrade(self.manifest)

    else:
      if not rp.Sync_NetworkHalf():
        print("error: can't update repo", file=sys.stderr)
        sys.exit(1)

      rp.bare_git.gc('--auto')
      _PostRepoFetch(rp,
                     repo_verify=opt.repo_verify,
                     verbose=True)