llm keys get name command

[simonw]

I didn't implement this at first because I didn't like the idea of key secrets being easy to read back out again. Then I found myself doing things like this:

OPENAI_API_KEY="$(jq -r '.openai' "$(dirname "$(llm logs path)")/keys.json")" \
  uv run jupyter notebook

The keys.json file is readable by the current user anyway, so may as well simplify this pattern to the much nicer:

OPENAI_API_KEY="$(llm keys get openai)" uv run jupyter notebook

[simonw]

This now works:

OPENAI_API_KEY="$(llm keys get openai)" printenv OPENAI_API_KEY

Surprisingly (to me) this didn't - it output an empty string:

OPENAI_API_KEY="$(llm keys get openai)" echo $OPENAI_API_KEY

Turns out echo is a builtin shell command (macOS zsh at least) - so OPENAI_API_KEY is expanded before the environment has been updated. printenv is a program so it gets the updated environment.

[simonw]

Updated docs - since this is such a small feature I only bothered documenting it in --help and through that on the CLI reference page: https://github.com/simonw/llm/blob/dff53a9caebd01acdb8c79f6f52e0b5f8b038475/docs/help.md#llm-keys-get---help