added new base class for file based cache plugins as 99% of code was common
now also catches unexpected decoding exceptions
allows per module file modes and encoding
moved jsonfile code to base
If 'fact_caching=jsonfile' was configured, but
'fact_caching_connection' was not configured, jsonfile
would fail and ansible-playbook would exit with a traceback.
Fixes#17566
* Add support for no-expiration to jsonfile cache
* Let memcached cache use fact_caching_timeout=0
If fact_cache=memcached and fact_caching_timeout=0
memcached would hit a NameError on _expire_keys
We couldn't copy to_unicode, to_bytes, to_str into module_utils because
of licensing. So once created it we had two sets of functions that did
the same things but had different implementations. To remedy that, this
change removes the ansible.utils.unicode versions of those functions.
* Allow to make the jsonfile cache files pretty (indented and sorted)
Since the json cache files are condensed, it is not very practical to look for something in them. Having indented/sorted cache files makes debugging and playbook/inventory development a lot easier to do.
I made it configurable in case people would object to the performance hit this would have, but to be honest, then they probably should be looking at other cache plugins instead IMO.
* Removed the config option and documentation changes
* corrupt/invalid file causes tracebacks
* incorrect initialization of display/_display in BaseCacheModule class
* tweaking the way errors in get() on jsonfile caches work, to raise
a proper AnsibleError in that situation so the playbook/task is stopped
Fixes#12708
