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ansible/v1/ansible
Feanil Patel 892e230514 Don't convert nulls to strings.
This change is similar to https://github.com/ansible/ansible/pull/10465

It extends the logic there to also support none types.  Right now if you have
a '!!null' in yaml, and that var gets passed around, it will get converted to
a string.

eg. defaults/main.yml
```
ENABLE_AWESOME_FEATURE: !!null # Yaml Null
OTHER_CONFIG:
  secret1: "so_secret"
  secret2: "even_more_secret"

CONFIG:
  hostname: "some_hostname"
  features:
    awesame_feature: "{{ ENABLE_AWESOME_FEATURE}}"
  secrets: "{{ OTHER_CONFIG }}"
```

If you output `CONFIG` to json or yaml, the feature flag would get represented in the output
as a string instead of as a null, but secrets would get represented as a dictionary.  This is
a mis-match in behaviour where some "types" are retained and others are not.  This change
should fix the issue.

I also updated the template test to test for this and made the changes to v2.

Added a changelog entry specifically for the change from empty string to null as the default.

Made the null representation configurable.

It still defaults to the python NoneType but can be overriden to be an emptystring by updating
the DEFAULT_NULL_REPRESENTATION config.
10 years ago
..
cache Making the switch to v2 11 years ago
callback_plugins Making the switch to v2 11 years ago
inventory Resync the v1 directory with v1_last. Fixes #11162 11 years ago
module_utils Moving VMware Utilites module 11 years ago
modules Updating v1/ansible/modules/core/ to use the v1_modules branch 11 years ago
playbook Making the switch to v2 11 years ago
runner Delimiter param must be a string 11 years ago
utils Don't convert nulls to strings. 10 years ago
__init__.py Making the switch to v2 11 years ago
callbacks.py Merge branch 'v2_final' into devel_switch_v2 11 years ago
color.py Making the switch to v2 11 years ago
constants.py Resync the v1 directory with v1_last. Fixes #11162 11 years ago
errors.py Making the switch to v2 11 years ago
module_common.py made special treatment of certain filesystem for selinux configurable 11 years ago