Init command supports Env Vars?

[kun432]

I don't know how to use Env Vars in Indexing phase.
https://microsoft.github.io/graphrag/posts/config/env_vars/

Let's say we set an Env Var GRAPHRAG_LLM_MODEL like this:

export GRAPHRAG_LLM_MODEL=gpt-4o

Then, execute Init command:

python -m graphrag.index --init --root ./ragtest

settings.yaml is generated like this:

encoding_model: cl100k_base
skip_workflows: []
llm:
  api_key: ${GRAPHRAG_API_KEY}
  type: openai_chat # or azure_openai_chat
  model: gpt-4-turbo-preview
(snip)

Is this expected behaviour?

[natoverse]

If you have the matching environment variable set, it will override what is in settings.yml. This allows you to configure a whole bunch of defaults, but then edit selected ones in your deployed environment of choice.