SIGINT (CTRL+C) returns to shell immediately

[stephan242]

Describe the bug
When running the tenv replacement for native tofu or terraform, and sending a SIGINT signal to it (by pressing CTRL+C), then the parent tenv gets killed immediately, and gives back a shell, while the underlying native tofu or terraform continues running, and sending data into the shell.

This also means one can't easily force a graceless (disgraceful?) shutdown with a second CTRL+C anymore.

module.d1.argocd_application.engine: Still creating... [3m30s elapsed]
module.d1.argocd_application.service: Still creating... [3m50s elapsed]
module.d1.argocd_application.engine: Still creating... [3m40s elapsed]
module.d1.argocd_application.service: Still creating... [4m0s elapsed]
module.d1.argocd_application.engine: Still creating... [3m50s elapsed]
module.d1.argocd_application.service: Still creating... [4m10s elapsed]
module.d1.argocd_application.engine: Still creating... [4m0s elapsed]
^CStopping operation...

Interrupt received.
Please wait for OpenTofu to exit or data loss may occur.
Gracefully shutting down...


fred@machine qa % 
fred@machine qa % module.d1.argocd_application.service: Still creating... [4m20s elapsed]
module.d1.argocd_application.engine: Still creating... [4m10s elapsed]

fred@machine qa % module.d1.argocd_application.service: Still creating... [4m30s elapsed]
module.d1.argocd_application.engine: Still creating... [4m20s elapsed]

fred@machine qa % module.d1.argocd_application.service: Still creating... [4m40s elapsed]
module.d1.argocd_application.engine: Still creating... [4m30s elapsed]
module.d1.argocd_application.service: Still creating... [4m50s elapsed]
module.d1.argocd_application.engine: Still creating... [4m40s elapsed]
module.d1.argocd_application.engine: Still creating... [4m50s elapsed]

To Reproduce
Steps to reproduce the behavior:

1. Run tenv's terraform or tofu for a longer run
2. hit CTRL+C, even numerous times
3. Note you get your prompt back

Expected behavior
The same as if I run terraform or tofu natively. First CTRL+C - graceful shutdown, no prompt. Second CTRL+C: Immediate shutdown.

Btw. this was working fine with tfenv.

[kvendingoldo]

Thanks for reporting, we'll check it