Reduce gem size by excluding test files

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## next (unreleased)
 
 - Implement `Cookie#to_h`. (#55) @luke-hill @flavorjones
+- Reduce gem size by excluding test files
 
 ## 1.0.8 (2024-12-05)
 

http-cookie.gemspec

@@ -18,7 +18,11 @@ Gem::Specification.new do |gem|
   gem.homepage      = "https://github.com/sparklemotion/http-cookie"
   gem.license       = "MIT"
 
-  gem.files         = `git ls-files`.split($/)
+  gem.files         = `git ls-files lib`.split($/) + [
+    'CHANGELOG.md',
+    'LICENSE.txt',
+    'README.md',
+  ]
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]