From dfddd7634d3286aef62ab5dc857347c98d79790d Mon Sep 17 00:00:00 2001
From: odgrim <me@odgr.im>
Date: Wed, 25 Sep 2024 21:36:20 -0700
Subject: [PATCH 1/3] add hclvalidate and terragrunt equiv hooks for terraform
 hooks

---
 hooks/terragrunt-fmt.sh         | 21 +++++++++++++++++++++
 hooks/terragrunt-hclvalidate.sh | 14 ++++++++++++++
 hooks/terragrunt-validate.sh    | 24 ++++++++++++++++++++++++
 3 files changed, 59 insertions(+)
 create mode 100755 hooks/terragrunt-fmt.sh
 create mode 100755 hooks/terragrunt-hclvalidate.sh
 create mode 100755 hooks/terragrunt-validate.sh

diff --git a/hooks/terragrunt-fmt.sh b/hooks/terragrunt-fmt.sh
new file mode 100755
index 00000000..83492565
--- /dev/null
+++ b/hooks/terragrunt-fmt.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -e
+
+# OSX GUI apps do not pick up environment variables the same way as Terminal apps and there are no easy solutions,
+# especially as Apple changes the GUI app behavior every release (see https://stackoverflow.com/q/135688/483528). As a
+# workaround to allow GitHub Desktop to work, add this (hopefully harmless) setting here.
+original_path=$PATH
+export PATH=$PATH:/usr/local/bin
+
+# Store and return last failure from fmt so this can validate every directory passed before exiting
+FMT_ERROR=0
+
+for file in "$@"; do
+  terragrunt --terragrunt-no-auto-init fmt -diff -check "$file" || FMT_ERROR=$?
+done
+
+# reset path to the original value
+export PATH=$original_path
+
+exit ${FMT_ERROR}
diff --git a/hooks/terragrunt-hclvalidate.sh b/hooks/terragrunt-hclvalidate.sh
new file mode 100755
index 00000000..57eda17d
--- /dev/null
+++ b/hooks/terragrunt-hclvalidate.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+set -e
+
+# OSX GUI apps do not pick up environment variables the same way as Terminal apps and there are no easy solutions,
+# especially as Apple changes the GUI app behavior every release (see https://stackoverflow.com/q/135688/483528). As a
+# workaround to allow GitHub Desktop to work, add this (hopefully harmless) setting here.
+export PATH=$PATH:/usr/local/bin
+
+for file in "$@"; do
+  pushd "$(dirname "$file")" >/dev/null
+   terragrunt hclvalidate "$(basename "$file")"
+  popd >/dev/null
+done
diff --git a/hooks/terragrunt-validate.sh b/hooks/terragrunt-validate.sh
new file mode 100755
index 00000000..436edead
--- /dev/null
+++ b/hooks/terragrunt-validate.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -e
+
+# OSX GUI apps do not pick up environment variables the same way as Terminal apps and there are no easy solutions,
+# especially as Apple changes the GUI app behavior every release (see https://stackoverflow.com/q/135688/483528). As a
+# workaround to allow GitHub Desktop to work, add this (hopefully harmless) setting here.
+export PATH=$PATH:/usr/local/bin
+
+# Disable output not usually helpful when running in automation (such as guidance to run plan after init)
+export TF_IN_AUTOMATION=1
+
+# Store and return last failure from validate so this can validate every directory passed before exiting
+VALIDATE_ERROR=0
+
+for dir in $(echo "$@" | xargs -n1 dirname | sort -u | uniq); do
+  echo "--> Running 'terraform validate' in directory '$dir'"
+  pushd "$dir" >/dev/null
+  terragrunt init -backend=false || VALIDATE_ERROR=$?
+  terragrunt validate || VALIDATE_ERROR=$?
+  popd >/dev/null
+done
+
+exit ${VALIDATE_ERROR}

From a937e535cc0f1f3abc283918afba16c0d9fd4344 Mon Sep 17 00:00:00 2001
From: odgrim <me@odgr.im>
Date: Wed, 25 Sep 2024 21:42:10 -0700
Subject: [PATCH 2/3] configure new commands

---
 .pre-commit-hooks.yaml | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 76e78365..fabed9e4 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -9,6 +9,15 @@
   exclude: \.+.terraform\/.*$
   require_serial: true
 
+- id: terragrunt-fmt
+  name: Terragrunt fmt
+  description: Rewrites all Terraform configuration files to a canonical format using terragrunt.
+  entry: hooks/terragrunt-fmt.sh
+  language: script
+  files: \.tf$
+  exclude: \.+.terraform\/.*$
+  require_serial: true
+
 - id: terraform-validate
   name: Terraform validate
   description: Validates all Terraform configuration files
@@ -18,6 +27,15 @@
   exclude: \.+.terraform\/.*$
   require_serial: true
 
+- id: terragrunt-validate
+  name: Terragrunt validate
+  description: Validates all Terraform configuration files using terragrunt.
+  entry: hooks/terragrunt-validate.sh
+  language: script
+  files: \.tf$
+  exclude: \.+.terraform\/.*$
+  require_serial: true
+
 - id: packer-validate
   name: Packer validate
   description: Validates all Packer configuration files
@@ -46,6 +64,17 @@
       .+\.terragrunt-cache\/.*$|
     )$
 
+- id: terragrunt-hclvalidate
+  name: Terragrunt hclvalidate
+  description: Validates all Terragrunt configuration files to a canonical format
+  entry: hooks/terragrunt-hclvalidate.sh
+  language: script
+  files: \.hcl$
+  exclude: >
+    (?x)^(
+      .+\.terraform\/.*$|
+      .+\.terragrunt-cache\/.*$|
+    )$
 - id: shellcheck
   name: Shellcheck Bash Linter
   description: Performs linting on bash scripts

From 848a56044ca269238572f91d8ae0455702fc879e Mon Sep 17 00:00:00 2001
From: odgrim <me@odgr.im>
Date: Wed, 25 Sep 2024 21:50:59 -0700
Subject: [PATCH 3/3] add whitespace

---
 .pre-commit-hooks.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index fabed9e4..7084df49 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -75,6 +75,7 @@
       .+\.terraform\/.*$|
       .+\.terragrunt-cache\/.*$|
     )$
+
 - id: shellcheck
   name: Shellcheck Bash Linter
   description: Performs linting on bash scripts