Most (all) puppet config settings can also be set on the command line, so I think --command-line (or --from-command-line, --to-command-line) will probably do what you need.

See options reference for more info.

@kpaulisse thank you for your answer. But you can't set strict_variables on the command line (and also not for octocatalog-diff).

😿 OK, didn't realize it wasn't a command line option.

The need would then seem to be creating a custom puppet.conf file to be used when Puppet is run by octocatalog-diff that contains the unsettable variables. I'll re-tag this as an enhancement request. Thanks for the clarification!

@mookie- for me

puppet apply --strict_variables -e 'notify { "bla $doesnotexist": }'
puppet apply  -e 'notify { "bla $doesnotexist": }'

works as expected:

$ puppet apply --strict_variables -e 'notify { "bla $doesnotexist": }'
Error: Evaluation Error: Unknown variable: 'doesnotexist'. (line: 1, column: 15) on node 79a996617dea

$ puppet apply  -e 'notify { "bla $doesnotexist": }'
Warning: Unknown variable: 'doesnotexist'. (line: 1, column: 15)
Notice: Compiled catalog for 79a996617dea in environment production in 0.05 seconds
Notice: bla 
Notice: /Stage[main]/Main/Notify[bla ]/message: defined 'message' as 'bla '
Notice: Applied catalog in 0.01 seconds