Commit Graph

5 Commits (a942758a0714c6176cc09a78562e9f3c62b2c8ff)

Author SHA1 Message Date
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.
9 years ago
Feanil Patel 0abcebf1e4 Don't convert numbers and booleans to strings.
Before this change if a variable was of type int or bool and the variable was referenced
by another variable, the type would change to string.

eg. defaults/main.yml
```
PORT: 4567
OTHER_CONFIG:
  secret1: "so_secret"
  secret2: "even_more_secret"

CONFIG:
  hostname: "some_hostname"
  port: "{{ PORT }}"
  secrets: "{{ OTHER_CONFIG }}"
```

If you output `CONFIG` to json or yaml, the port would get represented in the output as a
string instead of as a number, 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.

Update template test to also test var retainment.

Make the template changes in v2.
Update to only short-circuit for booleans and numbers.

Added an entry to the changelog.
10 years ago
James Cammarata 0e5b0a2e97 Revert "Set Jinja2's keep_trailing_newline=True in template_from_string."
This reverts commit 7a8eb0b670.
10 years ago
Jacob Leverich 7a8eb0b670 Set Jinja2's keep_trailing_newline=True in template_from_string.
Without this setting, the newline idempotence of scalar strings changes depending on whether
or not they contain any Jinja2 template blocks.
11 years ago
Michael DeHaan 2177b773c8 Rename tests to test, use old directory name. 11 years ago