add logic for gitignore step

Author: hectorsector

.github/workflows/3-tbd.yml

@@ -9,6 +9,9 @@ on:
   workflow_dispatch:
   # Add events that trigger this workflow.
   # TBD-step-3-event:
+  push:
+    paths:
+      - .gitignore
 
 # Reference: https://docs.github.com/en/actions/security-guides/automatic-token-authentication
 permissions:
@@ -54,6 +57,15 @@ jobs:
           fetch-depth: 0 # Let's get all the branches.
 
       # TBD-step-3-additional-steps
+      - name: Check if .gitignore contains .env
+        run: |
+          if grep -qw ".env" .gitignore; then
+            echo ".env is in .gitignore"
+            exit 0
+          else
+            echo ".env is not in .gitignore"
+            exit 1
+          fi
 
       # In README.md, switch step 3 for step 4.
       - name: Update to step 4