Add tflint Target Directory Parameter (#59)

* Add a tflint_target_dir optional variable

* Use INPUT_TFLINT_TARGET_DIR in tflint command

action.yml

@@ -45,6 +45,11 @@ inputs:
       Whether or not to run tflint --init prior to running scan [true,false]
       Default is `false`.
     default: 'false'
+  tflint_target_dir:
+    description: |
+      The target dir for the tflint command. This is the directory passed to tflint as opposed to working_directory which is the directory the command is executed from.
+      Default is . ( root of the repository)
+    default: '.'
   flags:
     description: |
       List of arguments to send to tflint
@@ -81,6 +86,7 @@ runs:
         INPUT_TFLINT_VERSION: ${{ inputs.tflint_version }}
         INPUT_TFLINT_RULESETS: ${{ inputs.tflint_rulesets }}
         INPUT_TFLINT_INIT: ${{ inputs.tflint_init }}
+        INPUT_TFLINT_TARGET_DIR: ${{ inputs.tflint_target_dir }}
         INPUT_FLAGS: ${{ inputs.flags }}
 
 branding:

script.sh

@@ -98,7 +98,7 @@ echo '::group:: Running tflint with reviewdog 🐶 ...'
   set +Eeuo pipefail
 
   # shellcheck disable=SC2086
-  TFLINT_PLUGIN_DIR=${TFLINT_PLUGIN_DIR} "${TFLINT_PATH}/tflint" --format=checkstyle ${INPUT_FLAGS} . \
+  TFLINT_PLUGIN_DIR=${TFLINT_PLUGIN_DIR} "${TFLINT_PATH}/tflint" --format=checkstyle ${INPUT_FLAGS} ${INPUT_TFLINT_TARGET_DIR} \
     | "${REVIEWDOG_PATH}/reviewdog" -f=checkstyle \
         -name="tflint" \
         -reporter="${INPUT_REPORTER}" \