Add TTY::Link::Terminals::Alacritty to detect hyperlinks support in A…

…lacritty

lib/tty/link/terminals/alacritty.rb

@@ -0,0 +1,71 @@
+# frozen_string_literal: true
+
+require_relative "abstract"
+
+module TTY
+ class Link
+ module Terminals
+ # Responsible for detecting hyperlink support in the Alacritty terminal
+ #
+ # @api private
+ class Alacritty < Abstract
+ # The Alacritty terminal name pattern
+ #
+ # @return [Regexp]
+ #
+ # @api private
+ ALACRITTY = /alacritty/x.freeze
+ private_constant :ALACRITTY
+
+ # The term environment variable name
+ #
+ # @return [String]
+ #
+ # @api private
+ TERM = "TERM"
+ private_constant :TERM
+
+ private
+
+ # Detect Alacritty terminal
+ #
+ # @example
+ # alacritty.name?
+ # # => true
+ #
+ # @return [Boolean]
+ #
+ # @api private
+ def name?
+ !(term =~ ALACRITTY).nil?
+ end
+
+ # Detect any Alacritty version to support terminal hyperlinks
+ #
+ # @example
+ # alacritty.version?
+ # # => true
+ #
+ # @return [Boolean]
+ #
+ # @api private
+ def version?
+ true
+ end
+
+ # Read the term environment variable
+ #
+ # @example
+ # alacritty.term
+ # # => "alacritty"
+ #
+ # @return [String, nil]
+ #
+ # @api private
+ def term
+ env[TERM]
+ end
+ end # Alacritty
+ end # Terminals
+ end # Link
+end # TTY

spec/unit/link_spec.rb

@@ -45,6 +45,15 @@
  end
  end
 
+ context "when Alacritty" do
+ it "supports links on any version" do
+ env = {"TERM" => "alacritty"}
+ link = described_class.new(env: env, output: output)
+
+ expect(link.link?).to eq(true)
+ end
+ end
+
  context "when iTerm" do
  it "supports a terminal program name with a version number" do
  env = {

spec/unit/terminals/alacritty_spec.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+RSpec.describe TTY::Link::Terminals::Alacritty, "#link?" do
+ let(:semantic_version) { TTY::Link::SemanticVersion }
+
+ it "supports links on any version" do
+ env = {"TERM" => "alacritty"}
+ alacritty = described_class.new(semantic_version, env)
+
+ expect(alacritty.link?).to eq(true)
+ end
+
+ it "supports a terminal name with a '-direct' suffix" do
+ env = {"TERM" => "alacritty-direct"}
+ alacritty = described_class.new(semantic_version, env)
+
+ expect(alacritty.link?).to eq(true)
+ end
+
+ it "doesn't support links without a terminal name" do
+ env = {"TERM" => nil}
+ alacritty = described_class.new(semantic_version, env)
+
+ expect(alacritty.link?).to eq(false)
+ end
+
+ it "doesn't support links with a non-Alacritty terminal name" do
+ env = {"TERM" => "non-Alacritty"}
+ iterm = described_class.new(semantic_version, env)
+
+ expect(iterm.link?).to eq(false)
+ end
+end