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# 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.
import contextlib
from testinfra.modules.base import InstanceModule
class Sudo(InstanceModule):
"""Sudo module allow to run certain portion of code under another user.
It is used as a context manager and can be nested.
>>> Command.check_output("whoami")
'phil'
>>> with host.sudo():
... host.check_output("whoami")
... with host.sudo("www-data"):
... host.check_output("whoami")
...
'root'
'www-data'
"""
@contextlib.contextmanager
def __call__(self, user=None):
old_get_command = self._host.backend.get_command
quote = self._host.backend.quote
get_sudo_command = self._host.backend.get_sudo_command
def get_command(command, *args):
return old_get_command(get_sudo_command(quote(command, *args), user))
self._host.backend.get_command = get_command
try:
yield
finally:
self._host.backend.get_command = old_get_command
def __repr__(self):
return "<sudo>"
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