text: # Copyright (c) 2010 Google Inc. All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are
  # met:
  #
  #     * Redistributions of source code must retain the above copyright
  # notice, this list of conditions and the following disclaimer.
  #     * Redistributions in binary form must reproduce the above
  # copyright notice, this list of conditions and the following disclaimer
  # in the documentation and/or other materials provided with the
  # distribution.
  #     * Neither the name of Google Inc. nor the names of its
  # contributors may be used to endorse or promote products derived from
  # this software without specific prior written permission.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  from webkitpy.common.config import urls
  from webkitpy.common.checkout.changelog import parse_bug_id
  from webkitpy.common.system.deprecated_logging import log
  from webkitpy.common.system.executive import ScriptError
  from webkitpy.tool.grammar import join_with_separators
  
  
  class Sheriff(object):
      def __init__(self, tool, sheriffbot):
          self._tool = tool
          self._sheriffbot = sheriffbot
  
      def responsible_nicknames_from_commit_info(self, commit_info):
          nestedList = [party.irc_nicknames for party in commit_info.responsible_parties() if party.irc_nicknames]
          return reduce(lambda list, childList: list + childList, nestedList)
  
      def post_irc_warning(self, commit_info, builders):
          irc_nicknames = sorted(self.responsible_nicknames_from_commit_info(commit_info))
          irc_prefix = ": " if irc_nicknames else ""
          irc_message = "%s%s%s might have broken %s" % (
              ", ".join(irc_nicknames),
              irc_prefix,
              urls.view_revision_url(commit_info.revision()),
              join_with_separators([builder.name() for builder in builders]))
  
          self._tool.irc().post(irc_message)
  
      def post_irc_summary(self, failure_map):
          failing_tests = failure_map.failing_tests()
          if not failing_tests:
              return
          test_list_limit = 5
          irc_message = "New failures: %s" % ", ".join(sorted(failing_tests)[:test_list_limit])
          failure_count = len(failing_tests)
          if failure_count > test_list_limit:
              irc_message += " (and %s more...)" % (failure_count - test_list_limit)
          self._tool.irc().post(irc_message)
  
      def post_rollout_patch(self, svn_revision_list, rollout_reason):
          # Ensure that svn revisions are numbers (and not options to
          # create-rollout).
          try:
              svn_revisions = " ".join([str(int(revision)) for revision in svn_revision_list])
          except:
              raise ScriptError(message="Invalid svn revision number \"%s\"."
                                % " ".join(svn_revision_list))
  
          if rollout_reason.startswith("-"):
              raise ScriptError(message="The rollout reason may not begin "
                                "with - (\"%s\")." % rollout_reason)
  
          output = self._sheriffbot.run_webkit_patch([
              "create-rollout",
              "--force-clean",
              # In principle, we should pass --non-interactive here, but it
              # turns out that create-rollout doesn't need it yet.  We can't
              # pass it prophylactically because we reject unrecognized command
              # line switches.
              "--parent-command=sheriff-bot",
              svn_revisions,
              rollout_reason,
          ])
          return parse_bug_id(output)
  
      def post_chromium_deps_roll(self, revision):
          args = [
              "post-chromium-deps-roll",
              "--force-clean",
              "--non-interactive",
              "--parent-command=sheriff-bot",
          ]
          if revision:
              args += [revision]
          output = self._sheriffbot.run_webkit_patch(args)
          return parse_bug_id(output)
  
      def post_blame_comment_on_bug(self, commit_info, builders, tests):
          if not commit_info.bug_id():
              return
          comment = "%s might have broken %s" % (
              urls.view_revision_url(commit_info.revision()),
              join_with_separators([builder.name() for builder in builders]))
          if tests:
              comment += "\nThe following tests are not passing:\n"
              comment += "\n".join(tests)
          self._tool.bugs.post_comment_to_bug(commit_info.bug_id(),
                                              comment,
                                              cc=self._sheriffbot.watchers)
  