From 84e5b61fcc19a95231f0b578321714ad3937e37b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Janko=20Marohni=C4=87?= <janko.marohnic@gmail.com>
Date: Sat, 15 Jun 2024 23:19:48 +0200
Subject: [PATCH] Still support `-append` in MiniMagick

---
 lib/image_processing/mini_magick.rb | 6 +++++-
 test/mini_magick_test.rb            | 5 +++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/image_processing/mini_magick.rb b/lib/image_processing/mini_magick.rb
index 416ddb5..6d1e1a5 100644
--- a/lib/image_processing/mini_magick.rb
+++ b/lib/image_processing/mini_magick.rb
@@ -157,7 +157,11 @@ def limits(options)
 
       # Appends a raw ImageMagick command-line argument to the command.
       def append(*args)
-        magick.merge! args
+        if args.empty?
+          magick.append
+        else
+          magick.merge! args
+        end
       end
 
       private
diff --git a/test/mini_magick_test.rb b/test/mini_magick_test.rb
index 123f511..6d82bf3 100644
--- a/test/mini_magick_test.rb
+++ b/test/mini_magick_test.rb
@@ -597,5 +597,10 @@
 
       assert_similar expected, actual
     end
+
+    it "still supports -append" do
+      result = ImageProcessing::MiniMagick.append("wizard:").append.call(@portrait)
+      assert_dimensions [600, 1440], result
+    end
   end
 end