fix "readonly"

Author: MaxymVlasov

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[@]}"

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

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

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