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# Fetch the output of a remote command
# Copyright (c) 2016 Guilhem Moulin <guilhem@fripost.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import subprocess, os
from ansible.plugins.action import ActionBase
from ansible.utils.path import makedirs_safe
from ansible.utils.hashing import checksum
class ActionModule(ActionBase):
TRANSFERS_FILES = True
def run(self, tmp=None, task_vars=None):
if task_vars is None:
task_vars = dict()
if self._play_context.check_mode:
return dict(skipped=True, msg='check mode not supported for this module')
result = super(ActionModule, self).run(tmp, task_vars)
cmd = self._task.args.get('cmd', None)
stdin = self._task.args.get('stdin', None)
dest = self._task.args.get('dest', None)
if cmd is None or dest is None:
return dict(failed=True, msg="cmd and dest are required")
if stdin is not None:
stdin = self._connection._shell.join_path(stdin)
stdin = self._remote_expand_user(stdin)
stdout = self._connection._shell.join_path(self._make_tmp_path(), 'stdout')
result.update(self._execute_module(module_args=dict(cmd=cmd, stdin=stdin, dest=stdout), task_vars=task_vars))
# calculate checksum for the local file
local_checksum = checksum(dest)
# calculate checksum for the remote file, don't bother if using become as slurp will be used
remote_checksum = self._remote_checksum(stdout, all_vars=task_vars)
if remote_checksum != local_checksum:
makedirs_safe(os.path.dirname(dest))
self._connection.fetch_file(stdout, dest)
if checksum(dest) == remote_checksum:
result.update(dict(changed=True))
else:
result.update(dict(failed=True))
return result
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