chore(runformat): Improve script to check version only if found

Author: jcfr

runformat

@@ -17,11 +17,20 @@ cd "$SCRIPT_DIR"
 UNCRUSTIFY_VERSION="0.72.0"
 UNCRUSTIFY="${UNCRUSTIFY-uncrustify}"
 
-DETECTED_VERSION=$("$UNCRUSTIFY" --version 2>&1 | grep -o -E '[0-9.]+')
-if [ "$DETECTED_VERSION" != "${UNCRUSTIFY_VERSION}" ]; then
-  echo "You should use version: ${UNCRUSTIFY_VERSION}"
-  echo "Detected version: ${DETECTED_VERSION}"
-  exit 1
+err() { echo -e >&2 "ERROR: $@\n"; }
+die() { err $@; exit 1; }
+
+# Check Uncrustify availability
+if ! command -v "$UNCRUSTIFY" >/dev/null 2>&1; then
+  err "Uncrustify executable not found: $UNCRUSTIFY"
+  die "Add it to PATH or set UNCRUSTIFY=/path/to/uncrustify"
+fi
+
+# Version check
+DETECTED_VERSION="$("$UNCRUSTIFY" --version 2>&1 | grep -oE '[0-9]+(\.[0-9]+)*' | head -n1 || true)"
+echo "Detected Uncrustify: ${DETECTED_VERSION:-unknown}"
+if [[ "$DETECTED_VERSION" != "${UNCRUSTIFY_VERSION}" ]]; then
+  die "Expected Uncrustify ${UNCRUSTIFY_VERSION}."
 fi
 
 $UNCRUSTIFY -c .uncrustify.cfg --no-backup *.cpp *.h