* template: Add integration tests for `lstrip_blocks'
Signed-off-by: Alex Tsitsimpis <alextsi@arrikto.com>
* template: Fix passing `trim_blocks' inline
Fix passing `trim_blocks' option to the template module as inline
argument. Previously passing the `trim_blocks' option inline instead of
using the YAML dictionary format resulted in it always being set to
`True', even if `trim_blocks=False' was used.
Signed-off-by: Alex Tsitsimpis <alextsi@arrikto.com>
* template: Add option to `lstrip_blocks'
Add option to set `lstrip_blocks' when using the template module to
render Jinja templates. The Jinja documentation suggests that
`trim_blocks' and `lstrip_blocks' is a great combination and the
template module already provides an option for `trim_blocks'.
Note that although `trim_blocks' in Ansible is enabled by default since
version 2.4, in order to avoid breaking things keep `lstrip_blocks'
disabled by default. Maybe in a future version it could be enabled by
default.
This seems to address issue #10725 in a more appropriate way than the
suggested.
Signed-off-by: Alex Tsitsimpis <alextsi@arrikto.com>
* template: Add integration tests for `trim_blocks'
Signed-off-by: Alex Tsitsimpis <alextsi@arrikto.com>
* template: Check Jinja2 support for `lstrip_blocks'
Since the `lstrip_blocks' option was added in Jinja2 version 2.7, raise
an exception when `lstrip_blocks' is set but Jinja2 does not support it.
Check support for `lstrip_blocks' option by checking `jinja2.defaults'
for `LSTRIP_BLOCKS' and do not use `jinja2.__version__' because the
latter is set to `unknown' in some cases, perhaps due to bug in
`pkg_resources' in Python 2.6.6.
Also update option description to state that Jinja2 version >=2.7 is
required.
Signed-off-by: Alex Tsitsimpis <alextsi@arrikto.com>
* template: fix KeyError: 'undefined variable: 0
For compatibility with the Context.get_all() implementation
in jinja 2.9, make AnsibleJ2Vars implement collections.Mapping.
Also, make AnsibleJ2Template.newcontext() handle dict type
for the 'vars' parameter.
See: d67f0fd4cc
Fixes: https://github.com/ansible/ansible/issues/20494
* add units/template/test_vars
* intg tests for jinja-2.9 issues like 20494
test cases here are based on
https://github.com/ansible/ansible/issues/20494#issue-202108318
This change to the template action plugin make template use the
platform's native newline_sequence for Jinja.
We also added the option `newline_sequence` to change the newline
sequence using by Jinja if you need to use another newline sequence than
the platform default.
This was previously discussed in
https://github.com/ansible/ansible/issues/16255#issuecomment-278289414
And also relates to issue #21128
