47 workflow merge main check for pull requests

.github/workflows/main.yml

@@ -8,8 +8,39 @@ on: #this workflow runs on pull requests and pushes to main or master
 
 #this is a list of all jobs
 jobs:
+  check-pr-sync-with-main:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config --global user.email "actions@github.com"
+          git config --global user.name "GitHub Actions"
+
+      - name: Create and checkout a temporary branch from main
+        run: |
+          git fetch origin main
+          git checkout -b temp-branch origin/main
+
+      - name: Merge PR branch into temporary branch
+        run: |
+          git merge ${{ github.event.pull_request.head.sha }} --no-edit || true
+
+      - name: Check for differences
+        run: |
+          if git diff --exit-code ${{ github.event.pull_request.head.sha }} temp-branch; then
+              echo "No differences found. The PR branch is up-to-date with the latest main branch."
+          else
+              echo "Differences found. The PR branch is not up-to-date with the latest main branch."
+              exit 1
+          fi
   linting:
     runs-on: ubuntu-latest
+    needs: check-pr-sync-with-main
     steps:
       - name: Checkout #checks out our current branch so this runner has the latest code
         uses: actions/checkout@v4 #uses means that it is a pre-defined action supplied by GitHub.
@@ -28,7 +59,7 @@ jobs:
 
   testing: #name of first job
     runs-on: ubuntu-latest #sets the env which this job runs on
-    needs: linting
+    needs: [linting, check-pr-sync-with-main]
     steps: #defines the steps necessary
       - name: Checkout #checks out our current branch so this runner has the latest code
         uses: actions/checkout@v4 #uses means that it is a pre-defined action supplied by GitHub.