From ca593fb04c9da55067611d094bf59c6d33daf485 Mon Sep 17 00:00:00 2001
From: godofredoc <godofredoc@google.com>
Date: Thu, 8 Sep 2022 17:37:03 -0700
Subject: [PATCH] Add relative directory support to symbols validation script.
 (flutter/engine#35936)

---
 .../src/flutter/testing/symbols/verify_exported.dart | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/engine/src/flutter/testing/symbols/verify_exported.dart b/engine/src/flutter/testing/symbols/verify_exported.dart
index d61bed3d8b8..9075aed06a6 100644
--- a/engine/src/flutter/testing/symbols/verify_exported.dart
+++ b/engine/src/flutter/testing/symbols/verify_exported.dart
@@ -28,7 +28,17 @@ void main(List<String> arguments) {
     print('usage: dart verify_exported.dart OUT_DIR [BUILDTOOLS]');
     exit(1);
   }
-  final String outPath = arguments.first;
+  String outPath = arguments.first;
+  if (p.isRelative(outPath)) {
+    /// If path is relative then create a full path starting from the engine checkout
+    /// repository.
+    if (!Platform.environment.containsKey('ENGINE_CHECKOUT_PATH')) {
+      print('ENGINE_CHECKOUT_PATH env variable is mandatory when using relative destination path');
+      exit(1);
+    }
+    final String engineCheckoutPath = Platform.environment['ENGINE_CHECKOUT_PATH']!;
+    outPath = p.join(engineCheckoutPath, outPath);
+  }
   final String buildToolsPath = arguments.length == 1
       ? p.join(p.dirname(outPath), 'buildtools')
       : arguments[1];