From cf07b5ea3ff76d82f9352aad6dc37e43aa769f9d Mon Sep 17 00:00:00 2001
From: Anton Babenko <anton@antonbabenko.com>
Date: Tue, 22 Sep 2020 14:20:27 +0200
Subject: [PATCH] feat: Add possibility to share tflint config file for subdirs
 (#149)

---
 README.md           | 10 ++++++++++
 terraform_tflint.sh |  6 ++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 53d14b9..c54a5ec 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,16 @@ if they are present in `README.md`.
           - '--args=--enable-rule=terraform_documented_variables'
     ```
 
+1. When you have multiple directories and want to run `tflint` in all of them and share single config file it is impractical to hard-code the path to `.tflint.hcl` file. The solution is to use `__GIT_WORKING_DIR__` placeholder which will be replaced by `terraform_tflint` hooks with Git working directory (repo root) at run time. For example:
+
+   ```yaml
+   hooks:
+     - id: terraform_tflint
+       args:
+         - '--args=--config=__GIT_WORKING_DIR__/.tflint.hcl'
+   ```
+
+
 ## Notes about terraform_tfsec hooks
 
 1. `terraform_tfsec` will consume modified files that pre-commit
diff --git a/terraform_tflint.sh b/terraform_tflint.sh
index e7a212b..670e860 100755
--- a/terraform_tflint.sh
+++ b/terraform_tflint.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -e
+set -eo pipefail
 
 main() {
   initialize_
@@ -35,7 +35,8 @@ parse_cmdline_() {
     case $argv in
       -a | --args)
         shift
-        ARGS+=("$1")
+        expanded_arg="${1//__GIT_WORKING_DIR__/$PWD}"
+        ARGS+=("$expanded_arg")
         shift
         ;;
       --)
@@ -45,6 +46,7 @@ parse_cmdline_() {
         ;;
     esac
   done
+
 }
 
 tflint_() {