restore_env: Check and restore renv
Description
Check whether renv is in use in the current branch. Raise error
if renv is not in use or apply renv:restore() in the case the package is
present
Usage
restore_env(branch, renv_prompt)
Arguments
- branch
Commit hash code or branch name. Useful to create an
informative error message
- renv_prompt
Prompt the user before taking any action?