Remove Rubinius support

* Fixes #101

Author: eregon

.github/workflows/test.yml

@@ -19,7 +19,6 @@ jobs:
         # Use various version syntax here for testing
         ruby: [ 2.1, 2.2, 2.3, 2.4, 2.5, 2.6.6, 2.7, ruby-head, debug, jruby-9.1, jruby, jruby-head, truffleruby, truffleruby-head ]
         include:
-        - { os: ubuntu-18.04, ruby: rubinius }
         - { os: windows-2016, ruby: mingw }
         - { os: windows-2019, ruby: mingw }
         - { os: windows-2019, ruby: mswin }

README.md

@@ -17,7 +17,6 @@ This action currently supports these versions of MRI, JRuby and TruffleRuby:
 | Ruby | 2.1.9, 2.2, 2.3.0 - 2.3.8, 2.4.0 - 2.4.10, 2.5.0 - 2.5.8, 2.6.0 - 2.6.6, 2.7.2, head, debug, mingw, mswin |
 | JRuby | 9.1.17.0, 9.2.9.0 - 9.2.13.0, head |
 | TruffleRuby | 19.3.0 - 20.2.0, head |
-| Rubinius | 4.14 |
 
 `ruby-debug` is the same as `ruby-head` but with assertions enabled (`-DRUBY_DEBUG=1`).  
 On Windows, `mingw` and `mswin` are `ruby-head` builds using the MSYS2/MinGW and the MSVC toolchains respectively.
@@ -40,8 +39,6 @@ The action works for all [GitHub-hosted runners](https://help.github.com/en/acti
 | macOS   | `macos-latest`   (= `macos-10.15`)  | |
 | Windows | `windows-latest` (= `windows-2019`) | `windows-2016` |
 
-Rubinius is only available on `ubuntu-18.04`.
-
 The prebuilt releases are generated by [ruby-builder](https://github.com/ruby/ruby-builder)
 and on Windows by [RubyInstaller2](https://github.com/oneclick/rubyinstaller2).
 `mingw` and `mswin` builds are generated by [ruby-loco](https://github.com/MSP-Greg/ruby-loco).

dist/index.js

@@ -227,8 +227,6 @@ async function installBundler(bundlerVersionInput, lockFile, platform, rubyPrefi
     console.log(`Using Bundler 2 shipped with ${engine}-${rubyVersion}`)
   } else if (engine === 'truffleruby' && bundlerVersion === '1') {
     console.log(`Using Bundler 1 shipped with ${engine}`)
-  } else if (engine === 'rubinius') {
-    console.log(`Rubinius only supports the version of Bundler shipped with it`)
   } else {
     const gem = path.join(rubyPrefix, 'bin', 'gem')
     await exec.exec(gem, ['install', 'bundler', '-v', `~> ${bundlerVersion}`, '--no-document'])

index.js

@@ -22,11 +22,5 @@ export function getVersions(platform) {
     ]
   }
 
-  if (platform === 'ubuntu-18.04') {
-    versions['rubinius'] = [
-      "4.14"
-    ]
-  }
-
   return versions
 }

ruby-builder-versions.js

@@ -26,12 +26,7 @@ async function downloadAndExtract(platform, engine, version) {
   const rubyPrefix = path.join(rubiesDir, `${engine}-${version}`)
 
   // Set the PATH now, so the MSYS2 'tar' is in Path on Windows
-  if (engine === 'rubinius') {
-    core.warning('Rubinius builds will no longer be provided, see https://github.com/ruby/setup-ruby/issues/101')
-    common.setupPath([path.join(rubyPrefix, 'bin'), path.join(rubyPrefix, 'gems', 'bin')])
-  } else {
-    common.setupPath([path.join(rubyPrefix, 'bin')])
-  }
+  common.setupPath([path.join(rubyPrefix, 'bin')])
 
   await io.mkdirP(rubiesDir)