* Move undefined check from concat to finalize
In the classic Jinja2's Environment str() is called on the return value of the
finalize method to potentially trigger the undefined error. That is not
the case in NativeEnvironment where string conversion of the return value is
not desired. We workaround that by checking for Undefined in all of our concat
functions. It seems simpler to do it earlier in the finalize method(s) instead.
As a side-effect it fixes an undefined variable detection in imported templates.
Fixes#78156
ci_complete
* Fix sanity
* ...
* sigh
* add tests for fail filter
also tests that fail does not block inspectability
* add fail filter
fallback message is a bit clunky,
since you can't invoke a filter without specifying an input.
That is, "{{ fail }}" doesn't work,
so you have to do "{{ None | fail }}"
* document 'fail' filter
* add changelog fragment
* fail filter uses default message on Undefined or emptystring
makes it slightly easier to use the default message:
```diff
- "{{ None | fail }}"
+ "{{ '' | fail }}"
```
and the user sees a slightly more relevant message
if the message itself is undefined:
```diff
- The error was: {{ failmsg | fail }}: 'failmsg' is undefined
+ The error was: {{ failmsg | fail }}: Mandatory variable has not been overridden
```
* rebuild as the builtin `Undefined`
* harmonise `hint` parameter for make_undefined with jinja
* use code block for documentation item
[ref](https://github.com/ansible/ansible/pull/75435#discussion_r707661035)
* rename to `undef` to expose less Python into the Jinja
[ref](https://github.com/ansible/ansible/pull/75435#pullrequestreview-757799031)
* explicitly instantiate undefined value now that it's possible
see I knew we would break something with reflection
* preserve test coverage of undefined variable
Co-authored-by: Matt Davis <nitzmahone@users.noreply.github.com>
Ability to add local variables into AnsibleJ2Vars was added in
18a9eff11f to fix#6653. Local variables
are added using ``AnsibleJ2Vars.add_locals()`` method when creating a
new context - typically when including/importing a template with
context. For that use case local template variables created using
``set`` should override variables from higher contexts - either from the
play or any parent template, or both; Jinja behaves the same way.
Also removes AnsibleJ2Vars.extras instance variable which is not used.
Also adds missing test for #6653.
Fixes#72262Fixes#72615
ci_complete
* Fix var_blending test temp dir usage.
* Fix filters integration test:
- Fix use of `output_dir`.
- Use `localhost` instead of `testhost` since we're only testing filters.
- Fix `fileglob` test to actually test a directory that exists.
* Fix lookups integration test:
- Fix use of `output_dir`.
- Use `localhost` instead of `testhost` since we're only testing lookups.
* Fix ansible-runner test temp dir usage.
* Fix template and template_jinja2_latest test.
Use the `OUTPUT_DIR` env var to get the output directory for the tests.
* Fix Python version compat in filters test.
* Skip filters test on Python 2.6.
Include path in role with directory which has 'tasks' as end.
For example, roles/sometasks/templates is now considered while searching path.
Fixes: #42585
Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
Nikita Korolev