1 files changed, 62 insertions, 0 deletions
diff --git a/ext/json/json.gemspec b/ext/json/json.gemspec
new file mode 100644
index 0000000000..5575731025
--- /dev/null
+++ b/ext/json/json.gemspec
@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+version = File.foreach(File.join(__dir__, "lib/json/version.rb")) do |line|
+  /^\s*VERSION\s*=\s*'(.*)'/ =~ line and break $1
+end rescue nil
+
+spec = Gem::Specification.new do |s|
+  java_ext = Gem::Platform === s.platform && s.platform =~ 'java' || RUBY_ENGINE == 'jruby'
+
+  s.name = "json"
+  s.version = version
+
+  s.summary = "JSON Implementation for Ruby"
+  s.homepage = "https://github.com/ruby/json"
+  s.metadata = {
+    'bug_tracker_uri'   => 'https://github.com/ruby/json/issues',
+    'changelog_uri'     => 'https://github.com/ruby/json/blob/master/CHANGES.md',
+    'documentation_uri' => 'https://docs.ruby-lang.org/en/master/JSON.html',
+    'homepage_uri'      => s.homepage,
+    'source_code_uri'   => 'https://github.com/ruby/json',
+  }
+
+  s.required_ruby_version = Gem::Requirement.new(">= 2.7")
+
+  if java_ext
+    s.description = "A JSON implementation as a JRuby extension."
+    s.author = "Daniel Luz"
+    s.email = "dev+ruby@mernen.com"
+  else
+    s.description = "This is a JSON implementation as a Ruby extension in C."
+    s.authors = ["Florian Frank"]
+    s.email = "flori@ping.de"
+  end
+
+  s.licenses = ["Ruby"]
+
+  s.extra_rdoc_files = ["README.md"]
+  s.rdoc_options = ["--title", "JSON implementation for Ruby", "--main", "README.md"]
+
+  s.files = [
+    "CHANGES.md",
+    "COPYING",
+    "BSDL",
+    "LEGAL",
+    "README.md",
+    "json.gemspec",
+  ] + Dir.glob("lib/**/*.rb", base: File.expand_path("..", __FILE__))
+
+  if java_ext
+    s.platform = 'java'
+    s.files += Dir["lib/json/ext/**/*.jar"]
+  else
+    s.extensions = Dir["ext/json/**/extconf.rb"]
+    s.files += Dir["ext/json/**/*.{c,h,rb}"]
+  end
+end
+
+if RUBY_ENGINE == 'jruby' && $0 == __FILE__
+  Gem::Builder.new(spec).build
+else
+  spec
+end