Add TTY::Link::Terminals::Rio to detect hyperlinks support in Rio

lib/tty/link/terminals/rio.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+require_relative "abstract"
+
+module TTY
+  class Link
+    module Terminals
+      # Responsible for detecting hyperlink support in the Rio terminal
+      #
+      # @api private
+      class Rio < Abstract
+        # The Rio terminal name pattern
+        #
+        # @return [Regexp]
+        #
+        # @api private
+        RIO = /rio/i.freeze
+        private_constant :RIO
+
+        private
+
+        # Detect Rio terminal
+        #
+        # @example
+        #   rio.name?
+        #   # => true
+        #
+        # @return [Boolean]
+        #
+        # @api private
+        def name?
+          !(term_program =~ RIO).nil?
+        end
+
+        # Detect whether the Rio version supports terminal hyperlinks
+        #
+        # @example
+        #   rio.version?
+        #   # => true
+        #
+        # @return [Boolean]
+        #
+        # @api private
+        def version?
+          return false unless term_program_version
+
+          current_semantic_version = semantic_version(term_program_version)
+
+          current_semantic_version >= semantic_version(0, 0, 28)
+        end
+      end # Rio
+    end # Terminals
+  end # Link
+end # TTY

spec/unit/link_spec.rb

@@ -147,6 +147,18 @@
       end
     end
 
+    context "when Rio" do
+      it "supports links above the 0.0.28 version" do
+        env = {
+          "TERM_PROGRAM" => "rio",
+          "TERM_PROGRAM_VERSION" => "0.0.28"
+        }
+        link = described_class.new(env: env, output: output)
+
+        expect(link.link?).to eq(true)
+      end
+    end
+
     context "when VTE" do
       it "supports links above the 0.50.1 version" do
         env = {"VTE_VERSION" => "5001"}

spec/unit/terminals/rio_spec.rb

@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+RSpec.describe TTY::Link::Terminals::Rio, "#link?" do
+  let(:env_with_name) { {"TERM_PROGRAM" => "rio"} }
+  let(:semantic_version) { TTY::Link::SemanticVersion }
+
+  it "doesn't support links without the term program environment variable" do
+    rio = described_class.new(semantic_version, {})
+
+    expect(rio.link?).to eq(false)
+  end
+
+  it "doesn't support links without a terminal program name" do
+    env = {"TERM_PROGRAM" => nil}
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(false)
+  end
+
+  it "doesn't support links with a non-Rio program name" do
+    env = {"TERM_PROGRAM" => "other-terminal"}
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(false)
+  end
+
+  it "supports links above the 0.1.8 version" do
+    env = {
+      "TERM_PROGRAM" => "Rio",
+      "TERM_PROGRAM_VERSION" => "0.2.3"
+    }
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(true)
+  end
+
+  it "supports links above the 0.0.28 version" do
+    env = env_with_name.merge({"TERM_PROGRAM_VERSION" => "0.0.29"})
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(true)
+  end
+
+  it "supports links on the 0.0.28 version" do
+    env = env_with_name.merge({"TERM_PROGRAM_VERSION" => "0.0.28"})
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(true)
+  end
+
+  it "doesn't support links below the 0.0.28 version" do
+    env = env_with_name.merge({"TERM_PROGRAM_VERSION" => "0.0.27"})
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(false)
+  end
+
+  it "doesn't support links without a version" do
+    env = env_with_name.merge({"TERM_PROGRAM_VERSION" => nil})
+    rio = described_class.new(semantic_version, env)
+
+    expect(rio.link?).to eq(false)
+  end
+
+  it "doesn't support links without the term program version env variable" do
+    rio = described_class.new(semantic_version, env_with_name)
+
+    expect(rio.link?).to eq(false)
+  end
+end