Added followup after #25

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: git://github.com/pre-commit/pre-commit-hooks
-  rev: v1.2.3
+  rev: v2.0.0
   hooks:
     - id: check-yaml
     - id: end-of-file-fixer

.pre-commit-hooks.yaml

@@ -10,6 +10,15 @@
   name: Terraform docs
   description: Inserts input and output documentation into README.md (using terraform-docs).
   entry: terraform_docs.sh
+  args: [--args=--with-aggregate-type-defaults]
+  language: script
+  files: (\.tf)$
+  exclude: \.terraform\/.*$
+
+- id: terraform_docs_without_aggregate_type_defaults
+  name: Terraform docs (without aggregate type defaults)
+  description: Inserts input and output documentation into README.md (using terraform-docs).
+  entry: terraform_docs.sh
   language: script
   files: (\.tf)$
   exclude: \.terraform\/.*$

README.md

@@ -1,29 +1,74 @@
-# pre-commit-terraform hook
+# Collection of git hooks for Terraform to be used with [pre-commit framework](http://pre-commit.com/)
 
 [![Github tag](https://img.shields.io/github/tag/antonbabenko/pre-commit-terraform.svg)](https://github.com/antonbabenko/pre-commit-terraform/releases) ![](https://img.shields.io/maintenance/yes/2018.svg) [![Help Contribute to Open Source](https://www.codetriage.com/antonbabenko/pre-commit-terraform/badges/users.svg)](https://www.codetriage.com/antonbabenko/pre-commit-terraform)
 
-Several [pre-commit](http://pre-commit.com/) hooks to keep Terraform configurations (both `*.tf` and `*.tfvars`) in a good shape:
+## How to install
+
+### Step 1
+
+On MacOSX install the pre-commit package
+
+```bash
+brew install pre-commit
+```
+
+For other operating systems check the [official documentation](http://pre-commit.com/#install)
+
+### Step 2
+
+Step into the repository you want to have the pre-commit hooks installed and run:
+
+```bash
+cat <<EOF > .pre-commit-config.yaml
+- repo: git://github.com/antonbabenko/pre-commit-terraform
+  rev: v1.7.4
+  hooks:
+    - id: terraform_fmt
+    - id: terraform_docs
+EOF
+```
+
+### Step 3
+
+Install the pre-commit hook
+
+```bash
+pre-commit install
+```
+
+### Step 4
+
+After pre-commit hook has been installed you can run it manually on all files in the repository
+
+```bash
+pre-commit run -a
+```
+
+## Available Hooks
+
+There are several [pre-commit](http://pre-commit.com/) 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.
-* `terraform_docs` - Inserts input and output documentation into `README.md`.
+* `terraform_docs` - Inserts input and output documentation into `README.md`. Recommended.
+* `terraform_docs_without_aggregate_type_defaults` - Inserts input and output documentation into `README.md` without aggregate type defaults.
+
+Check the [source file](https://github.com/antonbabenko/pre-commit-terraform/blob/master/.pre-commit-hooks.yaml) to know arguments used for each hook.
 
 ## Notes about hooks
 
 1. `terraform_validate_no_variables` and `terraform_validate_with_variables` will not work if variables are being set dynamically (eg, when using [Terragrunt](https://github.com/gruntwork-io/terragrunt)). Use `terragrunt validate` command instead.
 
-1. `terraform_docs` will insert/update documentation generated by [terraform-docs](https://github.com/segmentio/terraform-docs) between markers - `<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->` and `<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->` if they are present in `README.md`. Make sure that `terraform-docs` is installed.
+1. `terraform_docs` and `terraform_docs_without_aggregate_type_defaults` will insert/update documentation generated by [terraform-docs](https://github.com/segmentio/terraform-docs) between markers - `<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->` and `<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->` if they are present in `README.md`. Make sure that `terraform-docs` is installed.
 
-## Example
+1. It is possible to pass additional arguments to shell scripts when using `terraform_docs` and `terraform_docs_without_aggregate_type_defaults`. Send pull-request with the new hook if there is something missing.
-
-`.pre-commit-config.yaml`:
-
-```yaml
-- repo: git://github.com/antonbabenko/pre-commit-terraform
-  rev: v1.7.3
-  hooks:
-    - id: terraform_fmt
-    - id: terraform_docs
-```
 
 Enjoy the clean and documented code!
+
+## Authors
+
+This repository is managed by [Anton Babenko](https://github.com/antonbabenko) with help from [these awesome contributors](https://github.com/antonbabenko/pre-commit-terraform/graphs/contributors).
+
+## License
+
+MIT licensed. See LICENSE for full details.

hooks.yaml

@@ -10,6 +10,15 @@
   name: Terraform docs
   description: Inserts input and output documentation into README.md (using terraform-docs).
   entry: terraform_docs.sh
+  args: [--args=--with-aggregate-type-defaults]
+  language: script
+  files: (\.tf)$
+  exclude: \.terraform\/.*$
+
+- id: terraform_docs_without_aggregate_type_defaults
+  name: Terraform docs (without aggregate type defaults)
+  description: Inserts input and output documentation into README.md (using terraform-docs).
+  entry: terraform_docs.sh
   language: script
   files: (\.tf)$
   exclude: \.terraform\/.*$