fix: TFSec outputs the same results multiple times (antonbabenko#237)

Author: MaxymVlasov

.pre-commit-hooks.yaml

@@ -79,6 +79,7 @@
 - id: terraform_tfsec
  name: Terraform validate with tfsec
  description: Static analysis of Terraform templates to spot potential security issues.
+ require_serial: true
  entry: terraform_tfsec.sh
  language: script
 

terraform_tfsec.sh

@@ -6,13 +6,13 @@ main() {
  parse_cmdline_ "$@"
 
  # propagate $FILES to custom function
- tfsec_ "$ARGS" "$FILES"
+ tfsec_ "$ARGS" "${FILES[*]}"
 }
 
 tfsec_() {
  # consume modified files passed from pre-commit so that
  # tfsec runs against only those relevant directories
- for file_with_path in $FILES; do
+ for file_with_path in ${FILES[*]}; do
  file_with_path="${file_with_path// /__REPLACED__SPACE__}"
  paths[index]=$(dirname "$file_with_path")