Utility scripts

These are utlity scripts that really should be JS or TS.

Diff Refactor

Generate a terraform refactor configuration file based on the git diff of a terraform configuration file.

Currently only supports:

1. Renaming resources
2. Renaming modules

References:

• Terraform refactoring

Diff Refactor Usage

git diff HEAD~ HEAD -- ./terraform/modules/atlantis/iam.tf | diff_refactor.py > ./terraform/modules/atlantis/iam-refactor.tf

Note

Just use git diff -- <file-path> if you haven't committed your changes yet.

use git diff --name-only | grep .tf to get a list of changed terraform config files.

Diff Refactor Testing

python3 -m unittest test_diff_refactor.py

Plan Refactor

Generate a terraform refactor configuration file based on the terraform plan output.

Warning

Use git diff for better results, unless you use CDKTF and didn't write moved statements in your CDKTF code...

This is a lot more complicated and requires manual tuning once the script completed.

Plan Refactor Usage

terraform plan -no-color > tfplan
plan_refactor.py tfplan > refactor.tf

Plan Refactor Testing

python3 -m unittest test_plan_refactor.py