Custom jinja plugins

[jayvdb]

Sort of related to #18 ..

while moban providing some extra built-in filters/tests might be helpful, it would be even more helpful if moban loaded filters/tests from the moban yaml configuration, and even loaded custom globals for greater convenience.

e.g.

- plugin_dirs:
  - /path/to/.moban-py
- plugins:
  - jinja_globals:
    - load_file.py
  - jinja_filters:
    - strip_blank_lines.py
  - jinja_tests:
    - file_exists.py

where .moban-py/file_exists.py would provide the functionality needed for #18 , and

.moban-py/load_file.py and .moban-py/strip_blank_lines.py would allow

{{ set var = load_file('foo') | strip_blank_lines }}

[chfw]

I see your idea in extending moban's capability by adding more tests, filters and globals. Will get them in.

[jayvdb]

woot. I see lml being used in 98f546e#diff-b4b143aba20af5d4ba46c6358116ae80R18

I was actually thinking that might be a possible approach.

[chfw]

yes, lml also give the possibility to have standalone extension packages, i.e. moban-exists as python package for file existence test if we want to.

[jayvdb]

Nice. Any chance we could also make it load ansible plugins, such as https://github.com/ansible/ansible/blob/devel/lib/ansible/plugins/test/files.py

In addition to the test plugins, there are filters, using TestModule and FilterModule respectively.

They also have lookup plugins which are exposed via globals lookup(..) and query(..), but I am not sure whether those could be useful.

[chfw]

please wait for next release