How to show a custom error in Jinja2 macro or cmd state?

[Quan Tong Anh]

I'm going to write a macro to build a local repository on Ubuntu using debmirror.

Here's a snippet:

keyring_import:

  cmd:

    - run

{%- if 'keyid' in kwargs and 'keyserver' in kwargs %}

    {%- set keyid = kwargs.pop('keyid', None) %}

    {%- set keyserver = kwargs.pop('keyserver', None) %}

    - name: 'gpg --no-default-keyring --keyring {{ gnupghome }}/trustedkeys.gpg --keyserver {{ keyserver }} --recv-keys {{ keyid }}'

{%- elif 'key_url' in kwargs %}

    {%- set key_url = kwargs.pop('key_url') %}

    - name: 'wget -q -O- "{{ key_url }}" | gpg --no-default-keyring --keyring {{ gnupghome }}/trustedkeys.gpg --import'

{%- endif %}

    - require:

      - pkg: wget

      - pkg: gnupg

I want to use `else` instead of `endif` to show a custom error, something like "Either key_url or both keyserver and keyid required".
Is it possible?

[Mrten]

I tend to raise (python) exceptions for that, except (ha!) I haven't
found a way to do that in jinja (in Python/mako it is easy).

<% raise Exception("exceptiontext") %>

so perhaps, if you change the renderer to jinja|mako|yaml ?

also, you can insert illegal YAML :)


I actually have an issue open for this:

https://github.com/saltstack/salt/issues/4695

M.