From da8e4afe599f33672a467b331dc9cb2c6b4591c3 Mon Sep 17 00:00:00 2001
From: Mike Barry <msb5014@gmail.com>
Date: Fri, 12 Jan 2024 07:14:45 -0500
Subject: [PATCH] require same tile ordering

---
 .../java/com/onthegomap/planetiler/util/CompareArchives.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/planetiler-core/src/main/java/com/onthegomap/planetiler/util/CompareArchives.java b/planetiler-core/src/main/java/com/onthegomap/planetiler/util/CompareArchives.java
index 7a99c6b9..3aefe7f0 100644
--- a/planetiler-core/src/main/java/com/onthegomap/planetiler/util/CompareArchives.java
+++ b/planetiler-core/src/main/java/com/onthegomap/planetiler/util/CompareArchives.java
@@ -141,6 +141,11 @@ public class CompareArchives {
     }
 
     var order = input1.format().preferredOrder();
+    var order2 = input2.format().preferredOrder();
+    if (order != order2) {
+      throw new IllegalArgumentException(
+        "Archive orders must be the same to compare, got " + order + " and " + order2);
+    }
     var stats = config.arguments().getStats();
     var total = new AtomicLong(0);
     var diffs = new AtomicLong(0);