From 0735b9e70eb8908121edbdc62aad6699d08ee73a Mon Sep 17 00:00:00 2001
From: bai <17348+bai@users.noreply.github.com>
Date: Thu, 29 May 2025 10:57:20 +0300
Subject: [PATCH 01/11] The `hclfmt` command is no longer supported. Use
 `terragrunt hcl format` instead.

---
 hooks/terragrunt_fmt.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hooks/terragrunt_fmt.sh b/hooks/terragrunt_fmt.sh
index 698b3843b..a798eb0bd 100755
--- a/hooks/terragrunt_fmt.sh
+++ b/hooks/terragrunt_fmt.sh
@@ -12,7 +12,7 @@ function main {
   common::parse_cmdline "$@"
   common::export_provided_env_vars "${ENV_VARS[@]}"
   common::parse_and_export_env_vars
-  # JFYI: terragrunt hclfmt color already suppressed via PRE_COMMIT_COLOR=never
+  # JFYI: `terragrunt hcl format` color already suppressed via PRE_COMMIT_COLOR=never
 
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"
@@ -46,7 +46,7 @@ function per_dir_hook_unique_part {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt hclfmt "${args[@]}"
+  terragrunt hcl format "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?
@@ -63,7 +63,7 @@ function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt hclfmt "$(pwd)" "${args[@]}"
+  terragrunt hcl format "$(pwd)" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?

From fa91c5d0d1a5a88d8247a07c3d2112bce14bf573 Mon Sep 17 00:00:00 2001
From: bai <17348+bai@users.noreply.github.com>
Date: Thu, 29 May 2025 15:31:42 +0300
Subject: [PATCH 02/11] Decide hclfmt vs hcl format based on terragrunt version

---
 hooks/terragrunt_fmt.sh | 41 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

diff --git a/hooks/terragrunt_fmt.sh b/hooks/terragrunt_fmt.sh
index a798eb0bd..de5c92250 100755
--- a/hooks/terragrunt_fmt.sh
+++ b/hooks/terragrunt_fmt.sh
@@ -7,6 +7,35 @@ readonly SCRIPT_DIR
 # shellcheck source=_common.sh
 . "$SCRIPT_DIR/_common.sh"
 
+#######################################################################
+# Get the appropriate terragrunt format command based on version
+# Outputs:
+#   terragrunt format command (either "hclfmt" or "hcl format")
+#######################################################################
+function get_terragrunt_format_cmd {
+  local terragrunt_version
+  local major minor patch
+
+  # Get terragrunt version, extract the version number
+  terragrunt_version=$(terragrunt --version 2>/dev/null | grep -o 'v[0-9]\+\.[0-9]\+\.[0-9]\+' | head -1 | sed 's/^v//')
+
+  if [[ -z "$terragrunt_version" ]]; then
+    # If version detection fails, default to newer command
+    echo "hcl format"
+    return
+  fi
+
+  # Parse version components
+  IFS='.' read -r major minor patch <<< "$terragrunt_version"
+
+  # Compare version: if < 0.78, use hclfmt, otherwise use hcl format
+  if [[ $major -eq 0 && $minor -lt 78 ]]; then
+    echo "hclfmt"
+  else
+    echo "hcl format"
+  fi
+}
+
 function main {
   common::initialize "$SCRIPT_DIR"
   common::parse_cmdline "$@"
@@ -45,8 +74,12 @@ function per_dir_hook_unique_part {
   shift 4
   local -a -r args=("$@")
 
+  # Get the appropriate terragrunt format command
+  local format_cmd
+  format_cmd=$(get_terragrunt_format_cmd)
+
   # pass the arguments to hook
-  terragrunt hcl format "${args[@]}"
+  terragrunt "$format_cmd" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?
@@ -62,8 +95,12 @@ function per_dir_hook_unique_part {
 function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
+  # Get the appropriate terragrunt format command
+  local format_cmd
+  format_cmd=$(get_terragrunt_format_cmd)
+
   # pass the arguments to hook
-  terragrunt hcl format "$(pwd)" "${args[@]}"
+  terragrunt "$format_cmd" "$(pwd)" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?

From f04a3ad288cbf2e686b59dad7ea61e227133fb19 Mon Sep 17 00:00:00 2001
From: MaxymVlasov <MaxymVlasov@users.noreply.github.com>
Date: Thu, 29 May 2025 16:02:12 +0300
Subject: [PATCH 03/11] Make it more reusable and call  check once

Important PR description notes provided by Julien Rottenberg

Co-authored-by: Julien Rottenberg <julien.rottenberg@disney.com>
---
 hooks/_common.sh        | 33 +++++++++++++++++++++++++++++
 hooks/terragrunt_fmt.sh | 47 +++++++----------------------------------
 2 files changed, 41 insertions(+), 39 deletions(-)

diff --git a/hooks/_common.sh b/hooks/_common.sh
index defc249a8..91eb5daa5 100644
--- a/hooks/_common.sh
+++ b/hooks/_common.sh
@@ -606,3 +606,36 @@ function common::export_provided_env_vars {
     export $var_name="$var_value"
   done
 }
+
+#######################################################################
+# Check if the installed Terragrunt version is >=0.78.0 or not
+#
+# This function help to determine which terragrunt subcomand to use
+# based on Terragrunt version
+#
+# Returns:
+#   - 0 if version >= 0.78.0
+#   - 1 if version < 0.78.0
+#    Defaults to 0 if version cannot be determined
+#######################################################################
+# TODO: Drop after May 2027. Two years to upgrade is more than enough.
+function common::terragrunt_version_above_0.78 {
+  local terragrunt_version
+
+  # Extract version number (e.g., "terragrunt version v0.80.4" -> "0.80")
+  terragrunt_version=$(terragrunt --version 2> /dev/null | grep -oE '[0-9]+\.[0-9]+')
+  # If we can't parse version, default to newer command
+  if [[ -z "$terragrunt_version" ]]; then
+    return 0
+  fi
+
+  local major minor
+  IFS='.' read -r major minor <<< "$terragrunt_version"
+
+  # `hcl format` support added in v0.78.0 (May 2025)
+  if [[ $major -gt 0 ]] || [[ $major -eq 0 && $minor -ge 78 ]]; then
+    return 0
+  else
+    return 1
+  fi
+}
diff --git a/hooks/terragrunt_fmt.sh b/hooks/terragrunt_fmt.sh
index de5c92250..9668f38de 100755
--- a/hooks/terragrunt_fmt.sh
+++ b/hooks/terragrunt_fmt.sh
@@ -7,35 +7,6 @@ readonly SCRIPT_DIR
 # shellcheck source=_common.sh
 . "$SCRIPT_DIR/_common.sh"
 
-#######################################################################
-# Get the appropriate terragrunt format command based on version
-# Outputs:
-#   terragrunt format command (either "hclfmt" or "hcl format")
-#######################################################################
-function get_terragrunt_format_cmd {
-  local terragrunt_version
-  local major minor patch
-
-  # Get terragrunt version, extract the version number
-  terragrunt_version=$(terragrunt --version 2>/dev/null | grep -o 'v[0-9]\+\.[0-9]\+\.[0-9]\+' | head -1 | sed 's/^v//')
-
-  if [[ -z "$terragrunt_version" ]]; then
-    # If version detection fails, default to newer command
-    echo "hcl format"
-    return
-  fi
-
-  # Parse version components
-  IFS='.' read -r major minor patch <<< "$terragrunt_version"
-
-  # Compare version: if < 0.78, use hclfmt, otherwise use hcl format
-  if [[ $major -eq 0 && $minor -lt 78 ]]; then
-    echo "hclfmt"
-  else
-    echo "hcl format"
-  fi
-}
-
 function main {
   common::initialize "$SCRIPT_DIR"
   common::parse_cmdline "$@"
@@ -43,6 +14,12 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: `terragrunt hcl format` color already suppressed via PRE_COMMIT_COLOR=never
 
+  if common::terragrunt_version_above_0.78; then
+    readonly SUBCOMMAND="hcl format"
+  else
+    readonly SUBCOMMAND="hclfmt"
+  fi
+
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"
 }
@@ -74,12 +51,8 @@ function per_dir_hook_unique_part {
   shift 4
   local -a -r args=("$@")
 
-  # Get the appropriate terragrunt format command
-  local format_cmd
-  format_cmd=$(get_terragrunt_format_cmd)
-
   # pass the arguments to hook
-  terragrunt "$format_cmd" "${args[@]}"
+  terragrunt "$SUBCOMMAND" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?
@@ -95,12 +68,8 @@ function per_dir_hook_unique_part {
 function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
-  # Get the appropriate terragrunt format command
-  local format_cmd
-  format_cmd=$(get_terragrunt_format_cmd)
-
   # pass the arguments to hook
-  terragrunt "$format_cmd" "$(pwd)" "${args[@]}"
+  terragrunt "$SUBCOMMAND" "$(pwd)" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?

From bd44970eb0baf86f63d57c11d6105cb8fa0768ed Mon Sep 17 00:00:00 2001
From: MaxymVlasov <MaxymVlasov@users.noreply.github.com>
Date: Thu, 29 May 2025 16:12:54 +0300
Subject: [PATCH 04/11] Address expansion issue

---
 hooks/terragrunt_fmt.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/hooks/terragrunt_fmt.sh b/hooks/terragrunt_fmt.sh
index 9668f38de..3d6508e9c 100755
--- a/hooks/terragrunt_fmt.sh
+++ b/hooks/terragrunt_fmt.sh
@@ -15,9 +15,9 @@ function main {
   # JFYI: `terragrunt hcl format` color already suppressed via PRE_COMMIT_COLOR=never
 
   if common::terragrunt_version_above_0.78; then
-    readonly SUBCOMMAND="hcl format"
+    readonly SUBCOMMAND=(hcl format)
   else
-    readonly SUBCOMMAND="hclfmt"
+    readonly SUBCOMMAND=(hclfmt)
   fi
 
   # shellcheck disable=SC2153 # False positive
@@ -52,7 +52,7 @@ function per_dir_hook_unique_part {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt "$SUBCOMMAND" "${args[@]}"
+  terragrunt "${SUBCOMMAND[@]}" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?
@@ -69,7 +69,7 @@ function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt "$SUBCOMMAND" "$(pwd)" "${args[@]}"
+  terragrunt "${SUBCOMMAND[@]}" "$(pwd)" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?

From 127f3f9e9dc7ac2a11bbae21a2e9625da9302993 Mon Sep 17 00:00:00 2001
From: Maksym Vlasov <MaxymVlasov@users.noreply.github.com>
Date: Thu, 29 May 2025 16:26:20 +0300
Subject: [PATCH 05/11] Apply suggestions from code review

---
 hooks/_common.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hooks/_common.sh b/hooks/_common.sh
index 91eb5daa5..f06d0e32f 100644
--- a/hooks/_common.sh
+++ b/hooks/_common.sh
@@ -632,7 +632,7 @@ function common::terragrunt_version_above_0.78 {
   local major minor
   IFS='.' read -r major minor <<< "$terragrunt_version"
 
-  # `hcl format` support added in v0.78.0 (May 2025)
+  # New subcommands added in v0.78.0 (May 2025)
   if [[ $major -gt 0 ]] || [[ $major -eq 0 && $minor -ge 78 ]]; then
     return 0
   else

From cdc4559d73f1feac3d624b1b49240c0860af20a3 Mon Sep 17 00:00:00 2001
From: Maksym Vlasov <MaxymVlasov@users.noreply.github.com>
Date: Thu, 29 May 2025 16:32:43 +0300
Subject: [PATCH 06/11] Apply suggestions from code review

Co-authored-by: George L. Yermulnik <yz@yz.kiev.ua>
---
 hooks/_common.sh        | 7 +++----
 hooks/terragrunt_fmt.sh | 7 ++-----
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/hooks/_common.sh b/hooks/_common.sh
index f06d0e32f..f00f27328 100644
--- a/hooks/_common.sh
+++ b/hooks/_common.sh
@@ -610,7 +610,7 @@ function common::export_provided_env_vars {
 #######################################################################
 # Check if the installed Terragrunt version is >=0.78.0 or not
 #
-# This function help to determine which terragrunt subcomand to use
+# This function helps to determine which terragrunt subcomand to use
 # based on Terragrunt version
 #
 # Returns:
@@ -619,14 +619,13 @@ function common::export_provided_env_vars {
 #    Defaults to 0 if version cannot be determined
 #######################################################################
 # TODO: Drop after May 2027. Two years to upgrade is more than enough.
-function common::terragrunt_version_above_0.78 {
+function common::terragrunt_version_ge_0.78 {
   local terragrunt_version
 
   # Extract version number (e.g., "terragrunt version v0.80.4" -> "0.80")
   terragrunt_version=$(terragrunt --version 2> /dev/null | grep -oE '[0-9]+\.[0-9]+')
   # If we can't parse version, default to newer command
-  if [[ -z "$terragrunt_version" ]]; then
-    return 0
+  [[ ! $terragrunt_version ]] && return 0
   fi
 
   local major minor
diff --git a/hooks/terragrunt_fmt.sh b/hooks/terragrunt_fmt.sh
index 3d6508e9c..2ca003ea6 100755
--- a/hooks/terragrunt_fmt.sh
+++ b/hooks/terragrunt_fmt.sh
@@ -14,11 +14,8 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: `terragrunt hcl format` color already suppressed via PRE_COMMIT_COLOR=never
 
-  if common::terragrunt_version_above_0.78; then
-    readonly SUBCOMMAND=(hcl format)
-  else
-    readonly SUBCOMMAND=(hclfmt)
-  fi
+  readonly SUBCOMMAND
+  common::terragrunt_version_ge_0.78 && SUBCOMMAND=(hcl format) || SUBCOMMAND=(hclfmt)
 
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"

From c39c94b756c956608901f7a503222d0bc778cc53 Mon Sep 17 00:00:00 2001
From: Maksym Vlasov <MaxymVlasov@users.noreply.github.com>
Date: Thu, 29 May 2025 16:34:00 +0300
Subject: [PATCH 07/11] Change if notation to more concictent accross codebase

Co-authored-by: George L. Yermulnik <yz@yz.kiev.ua>
---
 hooks/_common.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hooks/_common.sh b/hooks/_common.sh
index f00f27328..37ab3de7a 100644
--- a/hooks/_common.sh
+++ b/hooks/_common.sh
@@ -632,7 +632,7 @@ function common::terragrunt_version_ge_0.78 {
   IFS='.' read -r major minor <<< "$terragrunt_version"
 
   # New subcommands added in v0.78.0 (May 2025)
-  if [[ $major -gt 0 ]] || [[ $major -eq 0 && $minor -ge 78 ]]; then
+  if [[ $major -gt 0 || ($major -eq 0 && $minor -ge 78) ]]; then
     return 0
   else
     return 1

From 25f4370bd1b8cca79bc7f5f9543442c9a1725dc3 Mon Sep 17 00:00:00 2001
From: bai <17348+bai@users.noreply.github.com>
Date: Thu, 29 May 2025 17:16:01 +0300
Subject: [PATCH 08/11] Handle validate-inputs

---
 hooks/terragrunt_validate_inputs.sh | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/hooks/terragrunt_validate_inputs.sh b/hooks/terragrunt_validate_inputs.sh
index 0c8d79e2d..41212ad40 100755
--- a/hooks/terragrunt_validate_inputs.sh
+++ b/hooks/terragrunt_validate_inputs.sh
@@ -14,6 +14,16 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: terragrunt validate color already suppressed via PRE_COMMIT_COLOR=never
 
+  readonly SUBCOMMAND
+  readonly RUN_ALL_SUBCOMMAND
+  if common::terragrunt_version_ge_0.78; then
+    SUBCOMMAND=(hcl validate --inputs)
+    RUN_ALL_SUBCOMMAND=(run --all hcl validate --inputs)
+  else
+    SUBCOMMAND=(validate-inputs)
+    RUN_ALL_SUBCOMMAND=(run-all validate-inputs)
+  fi
+
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"
 }
@@ -46,7 +56,7 @@ function per_dir_hook_unique_part {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt validate-inputs "${args[@]}"
+  terragrunt "${SUBCOMMAND[@]}" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?
@@ -63,7 +73,7 @@ function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt run-all validate-inputs "${args[@]}"
+  terragrunt "${RUN_ALL_SUBCOMMAND[@]}" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?

From 0d10a11a02501fe8025c90f8ef8df6da66204af5 Mon Sep 17 00:00:00 2001
From: bai <17348+bai@users.noreply.github.com>
Date: Thu, 29 May 2025 17:22:38 +0300
Subject: [PATCH 09/11] Handle run-all/run --all

---
 hooks/terragrunt_providers_lock.sh | 9 ++++++++-
 hooks/terragrunt_validate.sh       | 9 ++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/hooks/terragrunt_providers_lock.sh b/hooks/terragrunt_providers_lock.sh
index 9e3557aeb..89a2edc84 100755
--- a/hooks/terragrunt_providers_lock.sh
+++ b/hooks/terragrunt_providers_lock.sh
@@ -14,6 +14,13 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: terragrunt providers lock color already suppressed via PRE_COMMIT_COLOR=never
 
+  readonly RUN_ALL_SUBCOMMAND
+  if common::terragrunt_version_ge_0.78; then
+    RUN_ALL_SUBCOMMAND=(run --all providers lock)
+  else
+    RUN_ALL_SUBCOMMAND=(run-all providers lock)
+  fi
+
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"
 }
@@ -63,7 +70,7 @@ function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt run-all providers lock "${args[@]}"
+  terragrunt "${RUN_ALL_SUBCOMMAND[@]}" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?
diff --git a/hooks/terragrunt_validate.sh b/hooks/terragrunt_validate.sh
index 5a62c3913..3086a8583 100755
--- a/hooks/terragrunt_validate.sh
+++ b/hooks/terragrunt_validate.sh
@@ -14,6 +14,13 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: terragrunt validate color already suppressed via PRE_COMMIT_COLOR=never
 
+  readonly RUN_ALL_SUBCOMMAND
+  if common::terragrunt_version_ge_0.78; then
+    RUN_ALL_SUBCOMMAND=(run --all validate)
+  else
+    RUN_ALL_SUBCOMMAND=(run-all validate)
+  fi
+
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"
 }
@@ -63,7 +70,7 @@ function run_hook_on_whole_repo {
   local -a -r args=("$@")
 
   # pass the arguments to hook
-  terragrunt run-all validate "${args[@]}"
+  terragrunt "${RUN_ALL_SUBCOMMAND[@]}" "${args[@]}"
 
   # return exit code to common::per_dir_hook
   local exit_code=$?

From 346b177a0019ce26a9cc907ce5d72016998b9cdd Mon Sep 17 00:00:00 2001
From: bai <17348+bai@users.noreply.github.com>
Date: Thu, 29 May 2025 17:28:25 +0300
Subject: [PATCH 10/11] Remove oopsie

---
 hooks/_common.sh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/hooks/_common.sh b/hooks/_common.sh
index 37ab3de7a..7281b0244 100644
--- a/hooks/_common.sh
+++ b/hooks/_common.sh
@@ -626,7 +626,6 @@ function common::terragrunt_version_ge_0.78 {
   terragrunt_version=$(terragrunt --version 2> /dev/null | grep -oE '[0-9]+\.[0-9]+')
   # If we can't parse version, default to newer command
   [[ ! $terragrunt_version ]] && return 0
-  fi
 
   local major minor
   IFS='.' read -r major minor <<< "$terragrunt_version"

From 66dc2737de3701e476c42587101e1e4dd57b7a58 Mon Sep 17 00:00:00 2001
From: MaxymVlasov <MaxymVlasov@users.noreply.github.com>
Date: Thu, 29 May 2025 17:47:43 +0300
Subject: [PATCH 11/11] fix "readonly"

---
 hooks/terragrunt_fmt.sh             |  7 +++++--
 hooks/terragrunt_providers_lock.sh  |  5 ++---
 hooks/terragrunt_validate.sh        |  5 ++---
 hooks/terragrunt_validate_inputs.sh | 10 ++++------
 4 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/hooks/terragrunt_fmt.sh b/hooks/terragrunt_fmt.sh
index 2ca003ea6..2d6697ae3 100755
--- a/hooks/terragrunt_fmt.sh
+++ b/hooks/terragrunt_fmt.sh
@@ -14,8 +14,11 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: `terragrunt hcl format` color already suppressed via PRE_COMMIT_COLOR=never
 
-  readonly SUBCOMMAND
-  common::terragrunt_version_ge_0.78 && SUBCOMMAND=(hcl format) || SUBCOMMAND=(hclfmt)
+  if common::terragrunt_version_ge_0.78; then
+    local -ra SUBCOMMAND=(hcl format)
+  else
+    local -ra SUBCOMMAND=(hclfmt)
+  fi
 
   # shellcheck disable=SC2153 # False positive
   common::per_dir_hook "$HOOK_ID" "${#ARGS[@]}" "${ARGS[@]}" "${FILES[@]}"
diff --git a/hooks/terragrunt_providers_lock.sh b/hooks/terragrunt_providers_lock.sh
index 89a2edc84..21ee668fe 100755
--- a/hooks/terragrunt_providers_lock.sh
+++ b/hooks/terragrunt_providers_lock.sh
@@ -14,11 +14,10 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: terragrunt providers lock color already suppressed via PRE_COMMIT_COLOR=never
 
-  readonly RUN_ALL_SUBCOMMAND
   if common::terragrunt_version_ge_0.78; then
-    RUN_ALL_SUBCOMMAND=(run --all providers lock)
+    local -ra RUN_ALL_SUBCOMMAND=(run --all providers lock)
   else
-    RUN_ALL_SUBCOMMAND=(run-all providers lock)
+    local -ra RUN_ALL_SUBCOMMAND=(run-all providers lock)
   fi
 
   # shellcheck disable=SC2153 # False positive
diff --git a/hooks/terragrunt_validate.sh b/hooks/terragrunt_validate.sh
index 3086a8583..54b7a98d6 100755
--- a/hooks/terragrunt_validate.sh
+++ b/hooks/terragrunt_validate.sh
@@ -14,11 +14,10 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: terragrunt validate color already suppressed via PRE_COMMIT_COLOR=never
 
-  readonly RUN_ALL_SUBCOMMAND
   if common::terragrunt_version_ge_0.78; then
-    RUN_ALL_SUBCOMMAND=(run --all validate)
+    local -ra RUN_ALL_SUBCOMMAND=(run --all validate)
   else
-    RUN_ALL_SUBCOMMAND=(run-all validate)
+    local -ra RUN_ALL_SUBCOMMAND=(run-all validate)
   fi
 
   # shellcheck disable=SC2153 # False positive
diff --git a/hooks/terragrunt_validate_inputs.sh b/hooks/terragrunt_validate_inputs.sh
index 41212ad40..39e8e484e 100755
--- a/hooks/terragrunt_validate_inputs.sh
+++ b/hooks/terragrunt_validate_inputs.sh
@@ -14,14 +14,12 @@ function main {
   common::parse_and_export_env_vars
   # JFYI: terragrunt validate color already suppressed via PRE_COMMIT_COLOR=never
 
-  readonly SUBCOMMAND
-  readonly RUN_ALL_SUBCOMMAND
   if common::terragrunt_version_ge_0.78; then
-    SUBCOMMAND=(hcl validate --inputs)
-    RUN_ALL_SUBCOMMAND=(run --all hcl validate --inputs)
+    local -ra SUBCOMMAND=(hcl validate --inputs)
+    local -ra RUN_ALL_SUBCOMMAND=(run --all hcl validate --inputs)
   else
-    SUBCOMMAND=(validate-inputs)
-    RUN_ALL_SUBCOMMAND=(run-all validate-inputs)
+    local -ra SUBCOMMAND=(validate-inputs)
+    local -ra RUN_ALL_SUBCOMMAND=(run-all validate-inputs)
   fi
 
   # shellcheck disable=SC2153 # False positive