Several pre-commit hooks to keep Terraform configurations (both *.tf and *.tfvars) in a good shape:

• terraform_fmt - Rewrites all Terraform configuration files to a canonical format.
• terraform_validate_no_variables - Validates all Terraform configuration files without checking whether all required variables were set.
• terraform_validate_with_variables - Validates all Terraform configuration files and checks whether all required variables were specified.

Note that terraform_validate_no_variables and terraform_validate_with_variables will not work if variables are being set dynamically (eg, when using Terragrunt). Use terragrunt validate command instead.

An example .pre-commit-config.yaml:

- repo: git://github.com/antonbabenko/pre-commit-terraform
  sha: v1.6.0
  hooks:
    - id: terraform_fmt

Enjoy the clean code!