do changes check

action.yml

@@ -4,17 +4,32 @@ inputs:
   github-token:
     description: 'Github token of the bot used for the auto-approving'
     required: true
+  terraform-directory:
+    description: 'Root directory for the terraform files'
+    required: true
 runs:
   using: 'composite'
   steps:
+  - run: |
+      # todo. check that this is a pr and skip (or fail) other workflow events
+      pr_number=$(echo "$GIHUB_REF" | cut -d '/' -f3)
+      gh pr -R "${GIHUB_REPOSITORY}" view "${pr_number}" --json files --jq '.files.[].path' \
+        | grep -qo "^${TERRAFORM_DIR}" && echo "skip=false"|| echo "skip=false" >> $GITHUB_OUTPUT
+    shell: bash
+    id: check
+    env:
+      GITHUB_TOKEN: ${{ inputs.github-token }}
+      TERRAFORM_DIR: ${{ inputs.terraform-directory }}
   - uses: actions/download-artifact@v3
+    if: steps.check.outputs.skip == 'false' # don't fail
     with:
       name: terraform
       path: summary
   - id: summary
+    if: steps.check.outputs.skip == 'false' # don't fail
     shell: bash
     run: cat summary/terraform/*.summary | grep 'true' || echo "has_changes=false" >> $GITHUB_OUTPUT
   - uses: hmarr/auto-approve-action@v3
-    if: steps.summary.outputs.has_changes == 'false'
+    if: steps.bheck.outputs.skip == 'false' && steps.summary.outputs.has_changes == 'false'
     with:
       github-token: ${{ inputs.github-token }}