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path: root/lib/ansible/plugins/lookup/file.py
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# (c) 2012, Daniel Hokka Zakrisson <daniel@hozac.com>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

from ansible.errors import AnsibleError, AnsibleParserError
from ansible.plugins.lookup import LookupBase

try:
    from __main__ import display
    display = display
except ImportError:
    from ansible.utils.display import Display
    display = Display()


class LookupModule(LookupBase):

    def run(self, terms, variables=None, **kwargs):

        ret = []

        basedir = self.get_basedir(variables)

        for term in terms:
            display.debug("File lookup term: %s" % term)

            # Special handling of the file lookup, used primarily when the
            # lookup is done from a role. If the file isn't found in the
            # basedir of the current file, use dwim_relative to look in the
            # role/files/ directory, and finally the playbook directory
            # itself (which will be relative to the current working dir)

            lookupfile = self._loader.path_dwim_relative(basedir, 'files', term)
            display.vvvv("File lookup using %s as file" % lookupfile)
            try:
                if lookupfile:
                    contents, show_data = self._loader._get_file_contents(lookupfile)
                    ret.append(contents.rstrip())
                else:
                    raise AnsibleParserError()
            except AnsibleParserError:
                raise AnsibleError("could not locate file in lookup: %s" % term)

        return ret