CHAD-17043: Created pre-commit script to check for newline and copyright on all staged lua files

tools/pre-commit

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+#
+# Copyright 2025 SmartThings, Inc.
+# Licensed under the Apache License, Version 2.0
+#
+# pre-commit
+#
+# - Soft link into .git/hooks/pre-commit
+#   - $ ln -s tools/pre-commit .git/hooks/pre-commit
+# - Ensure executable
+
+set -e
+
+# Get changed files that are Added or Modified
+files=$(git diff --staged --name-only --diff-filter=AM)
+
+fail=0
+for file in $files; do
+    # Only process .lua files
+    case "$file" in
+        *.lua)
+            # Skip if not a regular file
+            [ -f "$file" ] || continue
+
+            # Check if file is not empty, is a SmartThings driver and has the copyright header
+            if [ -s "$file" ] && [[ "$file" =~ "drivers/SmartThings" ]] 
+                && [[ ! $(grep $file -P -e "-{2,} Copyright \d{4}(?:-\d{4})? SmartThings") ]]; then
+                echo "$file: SmartThings Copyright missing from file"
+                fail=1
+            fi
+
+            # Check if file is non-empty and does NOT end with a newline
+            if [ -s "$file" ] && [ -n "$(tail -c 1 "$file")" ]; then
+                echo "$file: Missing newline at end of file"
+                fail=1
+            fi
+            ;;
+    esac
+done
+
+exit $fail