therubyracer gem is no longer maintained and is incompatible with Ruby 3.0

Author: byroot

.travis.yml

@@ -16,8 +16,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - rvm: 2.0.0
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.0.0
-      env: EXECJS_RUNTIME=RubyRacer
     - rvm: 2.0.0
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
@@ -27,8 +25,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - rvm: 2.1.10
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.1.10
-      env: EXECJS_RUNTIME=RubyRacer
     - rvm: 2.1.10
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
@@ -38,8 +34,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - rvm: 2.2.7
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.2.7
-      env: EXECJS_RUNTIME=RubyRacer
     - rvm: 2.2.7
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
@@ -49,8 +43,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - rvm: 2.3.4
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.3.4
-      env: EXECJS_RUNTIME=RubyRacer
     - rvm: 2.3.4
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
@@ -60,8 +52,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - rvm: 2.4.1
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.4.1
-      env: EXECJS_RUNTIME=RubyRacer
     - rvm: 2.4.1
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
@@ -71,8 +61,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - rvm: ruby-head
       env: EXECJS_RUNTIME=Duktape
-    - rvm: ruby-head
-      env: EXECJS_RUNTIME=RubyRacer
     - rvm: ruby-head
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
@@ -89,8 +77,6 @@ matrix:
       env: EXECJS_RUNTIME=Node
     - os: osx
       env: EXECJS_RUNTIME=Duktape
-    - os: osx
-      env: EXECJS_RUNTIME=RubyRacer
     - os: osx
       env: EXECJS_RUNTIME=V8
     - os: osx

Gemfile

@@ -4,11 +4,7 @@ gemspec
 
 group :test do
   gem 'duktape', platform: :mri
-  if ENV['EXECJS_RUNTIME'] == 'MiniRacer'
-     gem 'mini_racer', '0.1.0.beta.3', platform: :mri
-  else
-     gem 'therubyracer', platform: :mri
-  end
+  gem 'mini_racer', platform: :mri
   gem 'therubyrhino', '>=1.73.3', platform: :jruby
   gem 'minitest', require: false
 end

README.md

@@ -7,8 +7,6 @@ returns the result to you as a Ruby object.
 
 ExecJS supports these runtimes:
 
-* [therubyracer](https://github.com/cowboyd/therubyracer) - Google V8
-  embedded within Ruby
 * [therubyrhino](https://github.com/cowboyd/therubyrhino) - Mozilla
   Rhino embedded within JRuby
 * [Duktape.rb](https://github.com/judofyr/duktape.rb) - Duktape JavaScript interpreter

lib/execjs/ruby_racer_runtime.rb

@@ -2,7 +2,6 @@
 require "execjs/disabled_runtime"
 require "execjs/duktape_runtime"
 require "execjs/external_runtime"
-require "execjs/ruby_racer_runtime"
 require "execjs/ruby_rhino_runtime"
 require "execjs/mini_racer_runtime"
 
@@ -12,8 +11,6 @@ module Runtimes
 
     Duktape = DuktapeRuntime.new
 
-    RubyRacer = RubyRacerRuntime.new
-
     RubyRhino = RubyRhinoRuntime.new
 
     MiniRacer = MiniRacerRuntime.new
@@ -81,7 +78,6 @@ def self.names
 
     def self.runtimes
       @runtimes ||= [
-        RubyRacer,
         RubyRhino,
         Duktape,
         MiniRacer,