`TF_CLI_ARGS_*` Handling @milldr (#898)
what
- Added logic and warning messages when the user specifies any
TF_CLI_*
environment variable, since this may conflict with Atmos behavior. - Append any TF_CLI env vars to the determined TF_CLI env var for
terraform shell
why
- When executing Terraform Shell, we should append generate var file to the (if) specified env var rather than overwriting it
- When executing Terraform, var files are already appended (merged). We should add a warning nonetheless