Ansible callback plugin for human-readable result logging - http://blog.cliffano.com/2014/04/06/human-readable-ansible-playbook-log-output-using-callback-plugin/

human_log.py

# 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/>.

# Inspired from: https://gist.github.com/cliffano/9868180
# Improved and made compatible with Ansible v2

from __future__ import (absolute_import, division, print_function)
from __future__ import unicode_literals

import locale

try:
    import json
except ImportError:
    import simplejson as json
    
try:
    import shutil
    term_size = shutil.get_terminal_size
except:
    term_size = lambda:(80,24)

__metaclass__ = type

from ansible.plugins.callback import CallbackBase





# Fields to reformat output for
FIELDS = set(('cmd', 'command', 'delta', 'end', 'msg', 'results', 'start', 'stderr', 'stdout'))
encoding = locale.getpreferredencoding()





class CallbackModule(CallbackBase):
    def human_log(self, host, res, *args, **kwargs):
        if type(res) == dict:
            for field in FIELDS.intersection(res):
                if res[field]:
                    output = self._format_output(data[field])
                    print("\n{0}: {1}".format(field, output.replace("\\n","\n")))


    def _format_output(self, output):
        if not output:
            return repr(output)

        # Strip unicode
        if type(output) == unicode:
            output = output.encode(encoding, 'replace')

        # If output is a dict
        if type(output) == dict:
            return json.dumps(output, indent=2)

        # If output is a list of dicts
        if type(output) == list and type(output[0]) == dict:
            # This gets a little complicated because it potentially means
            # nested results, usually because of with_items.
            real_output = list()
            for index, item in enumerate(output):
                copy = item
                if type(item) == dict:
                    for field in FIELDS:
                        if field in item.keys():
                            copy[field] = self._format_output(item[field])
                real_output.append(copy)
            return json.dumps(output, indent=2)

        # If output is a list of strings
        if type(output) == list and type(output[0]) != dict:
            # Strip newline characters
            real_output = list()
            for item in output:
                if "\n" in item:
                    for string in item.split("\n"):
                        real_output.append(string)
                else:
                    real_output.append(item)

            # Reformat lists with line breaks
            if len("".join(real_output)) > term_size()[0] - 2:
                return "\n" + "\n".join(real_output)
            else:
                return " ".join(real_output)

        # Otherwise it's a string, just return it
        return output


    runner_on_async_failed = human_log
    runner_on_async_ok = human_log
    runner_on_async_poll = human_log
    runner_on_failed = human_log
    runner_on_ok = human_log
    runner_on_unreachable = human_log

From: https://gist.github.com/dmsimard/cd706de198c85a8255f6

• simplification
• loop only on the keys present in res instead of all from FIELDS
• wrap long lines based on terminal size, when possible
• my term support utf-8, why limit it to ASCII

ERROR! Unexpected Exception, this is probably a bug: 'CallbackModule' object has no attribute 'set_options'
new version has this error