Feature Request: Add Terragrunt support

[v1pz3n]

Currently doesn't work with Terragrunt as the Terraform binary due to command syntax differences.

Environment

Terraform version: v1.5.7
Terragrunt version: v0.89.0

Command

tfautomv --terraform-bin="terragrunt"

Output

┌─ Error
│ failed to get Terraform version: "terraform version" failed: exit status 1
│ 07:46:08.101 ERROR The version command is no longer supported. Use terragrunt run -- version instead.
└─

Could you add support for Terragrunt? In newer versions, Terragrunt requires terragrunt run -- instead of terragrunt .

[busser]

Related to #105.

Currently tfautomv supports all tools that behave like Terraform. Terragrunt used to be a drop-in replacement for Terraform, but its maintainers are now taking a different direction. They have been making a lot of breaking changes recently. Getting tfautomv to support the different expectations of different versions would be a pain.

The simplest way forward is to create a wrapper around Terragrunt that makes it behave like Terraform, at least for the commands that tfautomv uses. Something like this:

#!/usr/bin/env sh

set -e

terragrunt run -- "$@"

You could then tell tfautomv to use that wrapper:

tfautomv --terraform-bin=./terragrunt.sh

I don't know Terragrunt well enough to say if the wrapper script would truly be that simple. If you manage to build a working wrapper, feel free to post it here.

[jeromegamez]

I can confirm that using the wrapper exactly as you provided it works! Thank you!