Add optional created_at field to GemVersion

lib/compact_index/dependency.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 module CompactIndex
-  Dependency = Struct.new(:gem, :version, :platform, :checksum) do # rubocop:disable Lint/StructNewOverride
+  Dependency = Struct.new(:gem, :version, :platform, :checksum) do
     def version_and_platform
       if platform.nil? || platform == "ruby"
         version

lib/compact_index/gem_version.rb

@@ -2,7 +2,8 @@
 
 module CompactIndex
   GemVersion = Struct.new(:number, :platform, :checksum, :info_checksum,
-                          :dependencies, :ruby_version, :rubygems_version) do
+                          :dependencies, :ruby_version, :rubygems_version,
+                          :created_at) do
     def number_and_platform
       if platform.nil? || platform == "ruby"
         number
@@ -25,6 +26,7 @@ def to_line
       line = "#{number_and_platform} #{deps_line}|checksum:#{checksum}"
       line << ",ruby:#{ruby_version_line}" if ruby_version && ruby_version != ">= 0"
       line << ",rubygems:#{rubygems_version_line}" if rubygems_version && rubygems_version != ">= 0"
+      line << ",created_at:#{created_at}" if created_at
       line
     end
 

spec/compact_index_spec.rb

@@ -117,5 +117,21 @@
       param = [build_version(:number => "1.0.1", :platform => "jruby")]
       expect(CompactIndex.info(param)).to eq("---\n1.0.1-jruby |checksum:sum+test_gem+1.0.1\n")
     end
+
+    it "show created_at timestamp" do
+      param = [build_version(:number => "1.0.1", :created_at => "2024-05-01T12:00:00Z")]
+      expect(CompactIndex.info(param)).to eq("---\n1.0.1 |checksum:sum+test_gem+1.0.1,created_at:2024-05-01T12:00:00Z\n")
+    end
+
+    it "show created_at with other requirements" do
+      param = [build_version(:number => "1.0.1", :ruby_version => ">1.9", :created_at => "2024-05-01T12:00:00Z")]
+      expected = "---\n1.0.1 |checksum:sum+test_gem+1.0.1,ruby:>1.9,created_at:2024-05-01T12:00:00Z\n"
+      expect(CompactIndex.info(param)).to eq(expected)
+    end
+
+    it "omits created_at when nil" do
+      param = [build_version(:number => "1.0.1")]
+      expect(CompactIndex.info(param)).not_to include("created_at")
+    end
   end
 end

spec/support/versions.rb

@@ -9,5 +9,8 @@ def build_version(args = {})
   dependencies = args.fetch(:dependencies, nil)
   ruby_version = args.fetch(:ruby_version, nil)
   rubygems_version = args.fetch(:rubygems_version, nil)
-  CompactIndex::GemVersion.new(number, platform, checksum, info_checksum, dependencies, ruby_version, rubygems_version)
+  created_at = args.fetch(:created_at, nil)
+  CompactIndex::GemVersion.new(
+    number, platform, checksum, info_checksum, dependencies, ruby_version, rubygems_version, created_at
+  )
 end