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# (c) 2017 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
callback: yaml
type: stdout
short_description: yaml-ized Ansible screen output
version_added: 2.5
description:
- Ansible output that can be quite a bit easier to read than the
default JSON formatting.
extends_documentation_fragment:
- default_callback
requirements:
- set as stdout in configuration
'''
import yaml
import json
import re
import string
import sys
from ansible.plugins.callback import CallbackBase, strip_internal_keys
from ansible.plugins.callback.default import CallbackModule as Default
from ansible.parsing.yaml.dumper import AnsibleDumper
# from http://stackoverflow.com/a/15423007/115478
def should_use_block(value):
"""Returns true if string should be in block format"""
for c in u"\u000a\u000d\u001c\u001d\u001e\u0085\u2028\u2029":
if c in value:
return True
return False
def my_represent_scalar(self, tag, value, style=None):
"""Uses block style for multi-line strings"""
if style is None:
if should_use_block(value):
style = '|'
# we care more about readable than accuracy, so...
# ...no trailing space
value = value.rstrip()
# ...and non-printable characters
value = filter(lambda x: x in string.printable, value)
# ...tabs prevent blocks from expanding
value = value.expandtabs()
# ...and odd bits of whitespace
value = re.sub(r'[\x0b\x0c\r]', '', value)
# ...as does trailing space
value = re.sub(r' +\n', '\n', value)
else:
style = self.default_style
node = yaml.representer.ScalarNode(tag, value, style=style)
if self.alias_key is not None:
self.represented_objects[self.alias_key] = node
return node
class CallbackModule(Default):
"""
Variation of the Default output which uses nicely readable YAML instead
of JSON for printing results.
"""
CALLBACK_VERSION = 2.0
CALLBACK_TYPE = 'stdout'
CALLBACK_NAME = 'yaml'
def __init__(self):
super(CallbackModule, self).__init__()
yaml.representer.BaseRepresenter.represent_scalar = my_represent_scalar
def _dump_results(self, result, indent=None, sort_keys=True, keep_invocation=False):
if result.get('_ansible_no_log', False):
return json.dumps(dict(censored="the output has been hidden due to the fact that 'no_log: true' was specified for this result"))
# All result keys stating with _ansible_ are internal, so remove them from the result before we output anything.
abridged_result = strip_internal_keys(result)
# remove invocation unless specifically wanting it
if not keep_invocation and self._display.verbosity < 3 and 'invocation' in result:
del abridged_result['invocation']
# remove diff information from screen output
if self._display.verbosity < 3 and 'diff' in result:
del abridged_result['diff']
# remove exception from screen output
if 'exception' in abridged_result:
del abridged_result['exception']
dumped = ''
# put changed and skipped into a header line
if 'changed' in abridged_result:
dumped += 'changed=' + str(abridged_result['changed']).lower() + ' '
del abridged_result['changed']
if 'skipped' in abridged_result:
dumped += 'skipped=' + str(abridged_result['skipped']).lower() + ' '
del abridged_result['skipped']
# if we already have stdout, we don't need stdout_lines
if 'stdout' in abridged_result and 'stdout_lines' in abridged_result:
abridged_result['stdout_lines'] = '<omitted>'
if abridged_result:
dumped += '\n'
dumped += yaml.dump(abridged_result, width=1000, Dumper=AnsibleDumper, default_flow_style=False)
# indent by a couple of spaces
dumped = '\n '.join(dumped.split('\n')).rstrip()
return dumped
|
