Add automatic line ending conversion

.gitattributes

@@ -1,2 +1,5 @@
 # linguist overrides
 *.sql linguist-language=TSQL
+
+# converts to native line endings on checkout for all SQL files
+*.sql text=auto

.github/workflows/AutoFormatSQL.yml

@@ -0,0 +1,61 @@
+name: AutoFormatSQL
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "**.sql"
+permissions:
+  contents: write
+jobs:
+  trim_whitespace:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: "20"
+
+      - name: git log
+        shell: pwsh
+        run: |
+          git log --pretty=format:%H --max-count=10
+
+      - name: Trim trailing whitespace and replace Tabs
+        shell: pwsh
+        run: |
+          $changedFiles = git --no-pager diff --name-only --relative  --diff-filter=AM "${{ github.event.before }}" "${{ github.sha }}" -- '***.sql'
+          $tabSize = 4
+          $outputString = ""
+          $changedFiles | ForEach-Object {
+            $fullPath = $_
+            $Content = Get-Content $fullPath
+            foreach ($Ctnt in $Content) {
+              $CharArray = $Ctnt.ToCharArray()
+              $lineOutput = ""
+              $slidingOffset = 0
+              for ($charIdx = 0; $charIdx -lt $CharArray.Length; $charIdx++) {
+                  if ($CharArray[$charIdx] -eq "`t") {
+                      $currentTab = $tabSize - (($charIdx + $slidingOffset) % $tabSize)
+                      $slidingOffset += $currentTab - 1
+                      $lineOutput += (" " * $currentTab) 
+                  }
+                  else {
+                      $lineOutput += $CharArray[$charIdx] 
+                  }
+              }
+              $outputString += $lineOutput.TrimEnd() + "`n"   # Add line output with trailing spaces removed to the output string, and add newline
+            }
+            Set-Content -Path $fullPath -Value ($outputString.TrimEnd())
+          }
+      - name: Commit changes
+        run: |
+          if [ -n "$(git status --porcelain)" ]; then
+            git config user.name "GitHub Actions"
+            git config user.email "[email protected]"
+            git add .
+            git commit -m "Automation: Replace tabs and remove trailing spaces"
+            git push 
+          fi