old_contents: #!/bin/bash
  
  # Copyright 2018 The Servo Project Developers. See the COPYRIGHT
  # file at the top-level directory of this distribution.
  #
  # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
  # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
  # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
  # option. This file may not be copied, modified, or distributed
  # except according to those terms.
  
  ''''set -e
  python3 -m coverage run $0
  python3 -m coverage report -m --fail-under 100
  exit
  
  Run the decision task with fake Taskcluster APIs, to catch Python errors before pushing.
  '''
  
  import os
  import sys
  from unittest.mock import MagicMock
  import decision_task
  
  
  class TaskclusterRestFailure(Exception):
      status_code = 404
  
  
  class Index:
      __init__ = insertTask = lambda *_, **__: None
  
      def findTask(self, path):
          if decision_task.CONFIG.git_ref == "refs/heads/master":
              return {"taskId": "<from index>"}
          raise TaskclusterRestFailure
  
  
  stringDate = str
  slugId = b"<new id>".lower
  sys.exit = Queue = fromNow = MagicMock()
  sys.modules["taskcluster"] = sys.modules[__name__]
  sys.dont_write_bytecode = True
  os.environ.update(**{k: k for k in "TASK_ID TASK_OWNER TASK_SOURCE GIT_URL GIT_SHA".split()})
  os.environ["GIT_REF"] = "refs/heads/auto"
  os.environ["TASKCLUSTER_ROOT_URL"] = "https://community-tc.services.mozilla.com"
  os.environ["TASKCLUSTER_PROXY_URL"] = "http://taskcluster"
  os.environ["NEW_AMI_WORKER_TYPE"] = "-"
  
  decision_task.decisionlib.subprocess = MagicMock()
  
  print("\n# Push:")
  decision_task.main("github-push")
  
  print("\n# Push with hot caches:")
  decision_task.main("github-push")
  
  print("\n# Push to master:")
  decision_task.CONFIG.git_ref = "refs/heads/master"
  decision_task.main("github-push")
  
  print("\n# Daily:")
  decision_task.main("daily")
  
  print("\n# Try AMI:")
  decision_task.main("try-windows-ami")
  
  print("\n# PR:")
  decision_task.main("github-pull-request")
  
  print()
  
new_contents: #!/bin/bash
  
  # Copyright 2018 The Servo Project Developers. See the COPYRIGHT
  # file at the top-level directory of this distribution.
  #
  # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
  # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
  # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
  # option. This file may not be copied, modified, or distributed
  # except according to those terms.
  
  ''''set -e
  python3 -m coverage run $0
  python3 -m coverage report -m --fail-under 100
  exit
  
  Run the decision task with fake Taskcluster APIs, to catch Python errors before pushing.
  '''
  
  import os
  import sys
  from unittest.mock import MagicMock
  
  
  class TaskclusterRestFailure(Exception):
      status_code = 404
  
  
  class Index:
      __init__ = insertTask = lambda *_, **__: None
  
      def findTask(self, path):
          if decision_task.CONFIG.git_ref == "refs/heads/master":
              return {"taskId": "<from index>"}
          raise TaskclusterRestFailure
  
  
  stringDate = str
  slugId = b"<new id>".lower
  sys.exit = Queue = fromNow = MagicMock()
  sys.dont_write_bytecode = True
  os.environ.update(**{k: k for k in "TASK_ID TASK_OWNER TASK_SOURCE GIT_URL GIT_SHA".split()})
  os.environ["GIT_REF"] = "refs/heads/auto"
  os.environ["TASKCLUSTER_ROOT_URL"] = "https://community-tc.services.mozilla.com"
  os.environ["TASKCLUSTER_PROXY_URL"] = "http://taskcluster"
  os.environ["NEW_AMI_WORKER_TYPE"] = "-"
  import decision_task  # noqa: E402
  decision_task.decisionlib.subprocess = MagicMock()
  
  print("\n# Push:")
  decision_task.main("github-push")
  
  print("\n# Push with hot caches:")
  decision_task.main("github-push")
  
  print("\n# Push to master:")
  decision_task.CONFIG.git_ref = "refs/heads/master"
  decision_task.main("github-push")
  
  print("\n# Daily:")
  decision_task.main("daily")
  
  print("\n# Try AMI:")
  decision_task.main("try-windows-ami")
  
  print("\n# PR:")
  decision_task.main("github-pull-request")
  
  print()
  
subject: Revert mock.py change