Use downloadAndExtract() for truffleruby+graalvm too

* Simpler and more consistent that way.
* Avoids rerunning the post-install hook every time.

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-20.04, ubuntu-22.04, macos-11, macos-12, macos-13, macos-arm-oss, windows-2019, windows-2022 ]
+        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-24.04, macos-11, macos-12, macos-13, macos-14, macos-arm-oss, windows-2019, windows-2022 ]
         ruby: [
           '1.9', '2.0', '2.1', '2.2', '2.3', '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', '3.3', ruby-head,
           jruby, jruby-head,
@@ -33,7 +33,16 @@ jobs:
         exclude:
         # https://github.com/ruby/setup-ruby/issues/496
         - { os: ubuntu-22.04, ruby: '2.2' }
-        # Too old, fails to compile on macos-arm-oss
+        - { os: ubuntu-24.04, ruby: '1.9' }
+        - { os: ubuntu-24.04, ruby: '2.2' }
+        # These old Rubies fail to compile on macos-arm-oss (macOS 13, arm64), which is used for ruby/ruby-builder
+        - { os: macos-14, ruby: '1.9' }
+        - { os: macos-14, ruby: '2.0' }
+        - { os: macos-14, ruby: '2.1' }
+        - { os: macos-14, ruby: '2.2' }
+        - { os: macos-14, ruby: '2.3' }
+        - { os: macos-14, ruby: '2.4' }
+        - { os: macos-14, ruby: '2.5' }
         - { os: macos-arm-oss, ruby: '1.9' }
         - { os: macos-arm-oss, ruby: '2.0' }
         - { os: macos-arm-oss, ruby: '2.1' }
@@ -43,14 +52,12 @@ jobs:
         - { os: macos-arm-oss, ruby: '2.5' }
         # Windows
         - { os: windows-2019, ruby: '1.9' }
-        - { os: windows-2019, ruby: '3.3' }
         - { os: windows-2019, ruby: debug }
         - { os: windows-2019, ruby: truffleruby }
         - { os: windows-2019, ruby: truffleruby-head }
         - { os: windows-2019, ruby: truffleruby+graalvm }
         - { os: windows-2019, ruby: truffleruby+graalvm-head }
         - { os: windows-2022, ruby: '1.9' }
-        - { os: windows-2022, ruby: '3.3' }
         - { os: windows-2022, ruby: debug }
         - { os: windows-2022, ruby: truffleruby }
         - { os: windows-2022, ruby: truffleruby-head }
@@ -169,15 +176,26 @@ jobs:
       - run: ruby -v
 
   testLatestRubygemsVersion:
-    name: "Test rubygems: latest upgrades the default RubyGems version"
+    name: "Test rubygems: latest on ${{ matrix.ruby }}"
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - { ruby: '3.2', expected_rubygems_version: '3.5.3'  }
+        - { ruby: '3.0', expected_rubygems_version: '3.5.3'  }
+        - { ruby: '2.7', expected_rubygems_version: '3.4.22' }
+        - { ruby: '2.6', expected_rubygems_version: '3.4.22' }
+        - { ruby: '2.5', expected_rubygems_version: '3.3.27' }
+        - { ruby: '2.3', expected_rubygems_version: '3.3.27' }
+        - { ruby: '2.0', expected_rubygems_version: '2.7.11' }
     steps:
     - uses: actions/checkout@v4
     - uses: ./
       with:
-        ruby-version: '2.6'
+        ruby-version: ${{ matrix.ruby }}
         rubygems: latest
-    - run: ruby -e "exit(Gem.rubygems_version > Gem::Version.new('3.0.3'))"
+    - run: ruby -e 'puts Gem::VERSION; exit(Gem.rubygems_version >= Gem::Version.new("${{ matrix.expected_rubygems_version }}"))'
 
   testFixedRubygemsVersionUpgrades:
     name: "Test rubygems: version upgrades RubyGems to that version if the default is older"
@@ -324,6 +342,19 @@ jobs:
           bundler-cache: true
       - run: bundle list | grep nokogiri
 
+  testWindowsToolchain:
+    name: "Test windows-toolchain: none"
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./
+        with:
+          ruby-version: '2.7'
+          windows-toolchain: none
+          bundler: none
+      - name: C:/msys64/mingw64/bin/gcc.exe not installed
+        run: ruby -e "abort if File.exist?('C:/msys64/mingw64/bin/gcc.exe')"
+
   lint:
     runs-on: ubuntu-20.04
     steps:

.ruby-version

@@ -1 +0,0 @@
-ruby-2.6.5

.tool-versions

@@ -1,2 +0,0 @@
-nodejs 16.0.0
-ruby 2.7.0

README.md

@@ -15,10 +15,10 @@ This action currently supports these versions of MRI, JRuby and TruffleRuby:
 
 | Interpreter | Versions |
 | ----------- | -------- |
-| `ruby` | 1.9.3, 2.0.0, 2.1.9, 2.2, all versions from 2.3.0 until 3.3.0-preview2, head, debug, mingw, mswin, ucrt |
+| `ruby` | 1.9.3, 2.0.0, 2.1.9, 2.2, all versions from 2.3.0 until 3.4.0-preview1, head, debug, mingw, mswin, ucrt |
-| `jruby` | 9.1.17.0 - 9.4.4.0, head |
+| `jruby` | 9.1.17.0 - 9.4.7.0, head |
-| `truffleruby` | 19.3.0 - 23.1.1, head |
+| `truffleruby` | 19.3.0 - 24.0.1, head |
-| `truffleruby+graalvm` | 21.2.0 - 23.1.1, head |
+| `truffleruby+graalvm` | 21.2.0 - 24.0.1, head |
 
 `ruby-debug` is the same as `ruby-head` but with assertions enabled (`-DRUBY_DEBUG=1`).  
 
@@ -38,12 +38,12 @@ which means Ruby ≤ 2.4 is unmaintained and considered insecure.
 
 ### Supported Platforms
 
-The action works on these [GitHub-hosted runners](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources) images. Runner images not listed below are not supported yet. `$OS-latest` just alias to one of these images.
+The action works on these [GitHub-hosted runners](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources) images. Runner images not listed below are not supported yet. `$OS-latest` just alias to one of these images.
 
 | Operating System | Supported |
 | ---------------- | --------- |
-| Ubuntu  | `ubuntu-20.04`, `ubuntu-22.04` |
+| Ubuntu  | `ubuntu-20.04`, `ubuntu-22.04`, `ubuntu-24.04` |
-| macOS   | `macos-11`, `macos-12`, `macos-13`, `macos-13-xlarge` (arm64) |
+| macOS   | `macos-11`, `macos-12`, `macos-13`, `macos-14` |
 | Windows | `windows-2019`, `windows-2022` |
 
 The prebuilt releases are generated by [ruby-builder](https://github.com/ruby/ruby-builder)
@@ -70,7 +70,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '3.2' # Not needed with a .ruby-version file
+        ruby-version: '3.3' # Not needed with a .ruby-version file
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - run: bundle exec rake
 ```
@@ -89,7 +89,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest]
         # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
-        ruby: ['2.7', '3.0', '3.1', '3.2', head, jruby, jruby-head, truffleruby, truffleruby-head]
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', head, jruby, jruby-head, truffleruby, truffleruby-head]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
@@ -118,7 +118,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.2'
+          ruby-version: '3.3'
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
       - run: bundle exec rake
 ```

action.yml

@@ -12,7 +12,8 @@ inputs:
     description: |
       The version of RubyGems to use. Either 'default' (the default), 'latest', or a version number (e.g., 3.3.5).
       For 'default', no action is taken and the version of RubyGems that comes with Ruby by default is used.
-      For 'latest', `gem update --system` is run to update to the latest RubyGems version.
+      For 'latest', `gem update --system` is run to update to the latest compatible RubyGems version.
+      Ruby head/master builds will not be updated.
       Similarly, if a version number is given, `gem update --system <version>` is run to update to that version of RubyGems, as long as that version is newer than the one provided by default.
   bundler:
     description: |
@@ -35,6 +36,15 @@ inputs:
       Consider the runner as a self-hosted runner, which means not using prebuilt Ruby binaries which only work
       on GitHub-hosted runners or self-hosted runners with a very similar image to the ones used by GitHub runners.
       The default is to detect this automatically based on the OS, OS version and architecture.
+  windows-toolchain:
+    description: |
+      This input allows to override the default toolchain setup on Windows.
+      The default setting ('default') installs a toolchain based on the selected Ruby.
+      Specifically, it installs MSYS2 if not already there and installs mingw/ucrt/mswin build tools and packages.
+      It also sets environment variables using 'ridk' or 'vcvars64.bat' based on the selected Ruby.
+      At present, the only other setting than 'default' is 'none', which only adds Ruby to PATH.
+      No build tools or packages are installed, nor are any ENV setting changed to activate them.
+
 outputs:
   ruby-prefix:
     description: 'The prefix of the installed ruby'

common.js

@@ -165,10 +165,13 @@ export async function hashFile(file) {
 const GitHubHostedPlatforms = [
   'ubuntu-20.04-x64',
   'ubuntu-22.04-x64',
+  'ubuntu-24.04-x64',
   'macos-11-x64',
   'macos-12-x64',
   'macos-13-x64',
   'macos-13-arm64',
+  'macos-14-x64',
+  'macos-14-arm64',
   'windows-2019-x64',
   'windows-2022-x64',
 ]
@@ -341,7 +344,8 @@ export function setupPath(newPathEntries) {
 
   // Then add new path entries using core.addPath()
   let newPath
-  if (windows) {
+  const windowsToolchain = core.getInput('windows-toolchain')
+  if (windows && windowsToolchain !== 'none') {
     // main Ruby dll determines whether mingw or ucrt build
     msys2Type = rubyIsUCRT(newPathEntries[0]) ? 'ucrt64' : 'mingw64'
 

index.js

@@ -17,6 +17,7 @@ const inputDefaults = {
   'working-directory': '.',
   'cache-version': bundler.DEFAULT_CACHE_VERSION,
   'self-hosted': 'false',
+  'windows-toolchain': 'default',
 }
 
 // entry point when this action is run on its own
@@ -30,6 +31,9 @@ export async function run() {
       core.setFailed(error.stack)
     }
   }
+  // Explicit process.exit() to not wait hanging promises,
+  // see https://github.com/ruby/setup-ruby/issues/543
+  process.exit()
 }
 
 // entry point when this action is run from other actions
@@ -75,7 +79,7 @@ export async function setupRuby(options = {}) {
   const rubygemsInputSet = inputs['rubygems'] !== 'default'
   if (rubygemsInputSet) {
     await common.measure('Updating RubyGems', async () =>
-      rubygems.rubygemsUpdate(inputs['rubygems'], rubyPrefix))
+      rubygems.rubygemsUpdate(inputs['rubygems'], rubyPrefix, platform, engine, version))
   }
 
   // When setup-ruby is used by other actions, this allows code in them to run

ruby-builder-versions.json

@@ -9,17 +9,18 @@
     "2.5.0", "2.5.1", "2.5.2", "2.5.3", "2.5.4", "2.5.5", "2.5.6", "2.5.7", "2.5.8", "2.5.9",
     "2.6.0", "2.6.1", "2.6.2", "2.6.3", "2.6.4", "2.6.5", "2.6.6", "2.6.7", "2.6.8", "2.6.9", "2.6.10",
     "2.7.0", "2.7.1", "2.7.2", "2.7.3", "2.7.4", "2.7.5", "2.7.6", "2.7.7", "2.7.8",
-    "3.0.0-preview1", "3.0.0-preview2", "3.0.0-rc1", "3.0.0", "3.0.1", "3.0.2", "3.0.3", "3.0.4", "3.0.5", "3.0.6",
+    "3.0.0-preview1", "3.0.0-preview2", "3.0.0-rc1", "3.0.0", "3.0.1", "3.0.2", "3.0.3", "3.0.4", "3.0.5", "3.0.6", "3.0.7",
-    "3.1.0-preview1", "3.1.0", "3.1.1", "3.1.2", "3.1.3", "3.1.4",
+    "3.1.0-preview1", "3.1.0", "3.1.1", "3.1.2", "3.1.3", "3.1.4", "3.1.5",
-    "3.2.0-preview1", "3.2.0-preview2", "3.2.0-preview3", "3.2.0-rc1", "3.2.0", "3.2.1", "3.2.2",
+    "3.2.0-preview1", "3.2.0-preview2", "3.2.0-preview3", "3.2.0-rc1", "3.2.0", "3.2.1", "3.2.2", "3.2.3", "3.2.4",
-    "3.3.0-preview1", "3.3.0-preview2",
+    "3.3.0-preview1", "3.3.0-preview2", "3.3.0-preview3", "3.3.0-rc1", "3.3.0", "3.3.1",
+    "3.4.0-preview1",
     "head", "debug"
   ],
   "jruby": [
     "9.1.17.0",
     "9.2.9.0", "9.2.10.0", "9.2.11.0", "9.2.11.1", "9.2.12.0", "9.2.13.0", "9.2.14.0", "9.2.15.0", "9.2.16.0", "9.2.17.0", "9.2.18.0", "9.2.19.0", "9.2.20.0", "9.2.20.1", "9.2.21.0",
-    "9.3.0.0", "9.3.1.0", "9.3.2.0", "9.3.3.0", "9.3.4.0", "9.3.6.0", "9.3.7.0", "9.3.8.0", "9.3.9.0", "9.3.10.0", "9.3.11.0",
+    "9.3.0.0", "9.3.1.0", "9.3.2.0", "9.3.3.0", "9.3.4.0", "9.3.6.0", "9.3.7.0", "9.3.8.0", "9.3.9.0", "9.3.10.0", "9.3.11.0", "9.3.13.0", "9.3.14.0",
-    "9.4.0.0", "9.4.1.0", "9.4.2.0", "9.4.3.0", "9.4.4.0",
+    "9.4.0.0", "9.4.1.0", "9.4.2.0", "9.4.3.0", "9.4.4.0", "9.4.5.0", "9.4.6.0", "9.4.7.0",
     "head"
   ],
   "truffleruby": [
@@ -27,13 +28,15 @@
     "20.0.0", "20.1.0", "20.2.0", "20.3.0",
     "21.0.0", "21.1.0", "21.2.0", "21.2.0.1", "21.3.0",
     "22.0.0.2", "22.1.0", "22.2.0", "22.3.0", "22.3.1",
-    "23.0.0-preview1", "23.0.0", "23.1.0", "23.1.1",
+    "23.0.0-preview1", "23.0.0", "23.1.0", "23.1.1", "23.1.2",
+    "24.0.0", "24.0.1",
     "head"
   ],
   "truffleruby+graalvm": [
     "21.2.0", "21.3.0",
     "22.0.0.2", "22.1.0", "22.2.0", "22.3.0", "22.3.1",
-    "23.0.0-preview1", "23.0.0", "23.1.0", "23.1.1",
+    "23.0.0-preview1", "23.0.0", "23.1.0", "23.1.1", "23.1.2",
+    "24.0.0", "24.0.1",
     "head"
   ]
 }

ruby-builder.js

@@ -51,31 +51,18 @@ export async function install(platform, engine, version) {
 
   if (!inToolCache) {
     await io.mkdirP(rubyPrefix)
-    if (engine === 'truffleruby+graalvm') {
+    await downloadAndExtract(platform, engine, version, rubyPrefix)
-      await installWithRubyBuild(engine, version, rubyPrefix)
+  }
-    } else {
+
-      await downloadAndExtract(platform, engine, version, rubyPrefix)
+  // https://github.com/oracle/truffleruby/issues/3390
-    }
+  if (engine.startsWith('truffleruby') && common.floatVersion(version) >= 24.0 && !common.isSelfHostedRunner() && common.getOSNameVersionArch() === 'macos-12-x64') {
+    console.log('Setting MACOSX_DEPLOYMENT_TARGET=11.0 to workaround bug in XCode 14.2 linker not respecting RTLD_LAZY, see https://github.com/oracle/truffleruby/issues/3390')
+    core.exportVariable('MACOSX_DEPLOYMENT_TARGET', '11.0')
   }
 
   return rubyPrefix
 }
 
-async function installWithRubyBuild(engine, version, rubyPrefix) {
-  const tmp = process.env['RUNNER_TEMP'] || os.tmpdir()
-  const rubyBuildDir = path.join(tmp, 'ruby-build-for-setup-ruby')
-  await common.measure('Cloning ruby-build', async () => {
-    await exec.exec('git', ['clone', 'https://github.com/rbenv/ruby-build.git', rubyBuildDir])
-  })
-
-  const rubyName = `${engine}-${version === 'head' ? 'dev' : version}`
-  await common.measure(`Installing ${engine}-${version} with ruby-build`, async () => {
-    await exec.exec(`${rubyBuildDir}/bin/ruby-build`, [rubyName, rubyPrefix])
-  })
-
-  await io.rmRF(rubyBuildDir)
-}
-
 async function downloadAndExtract(platform, engine, version, rubyPrefix) {
   const parentDir = path.dirname(rubyPrefix)
 
@@ -119,5 +106,9 @@ function getDownloadURL(platform, engine, version) {
 }
 
 function getLatestHeadBuildURL(platform, engine, version) {
-  return `https://github.com/ruby/${engine}-dev-builder/releases/latest/download/${engine}-${version}-${platform}.tar.gz`
+  var repo = `${engine}-dev-builder`
+  if (engine === 'truffleruby+graalvm') {
+    repo = 'truffleruby-dev-builder'
+  }
+  return `https://github.com/ruby/${repo}/releases/latest/download/${engine}-${version}-${platform}.tar.gz`
 }

rubygems.js

@@ -1,8 +1,9 @@
+const common = require('./common')
 const path = require('path')
 const exec = require('@actions/exec')
 const semver = require('semver')
 
-export async function rubygemsUpdate(rubygemsVersionInput, rubyPrefix) {
+export async function rubygemsUpdate(rubygemsVersionInput, rubyPrefix, platform, engine, rubyVersion) {
   const gem = path.join(rubyPrefix, 'bin', 'gem')
 
   let gemVersion = ''
@@ -18,7 +19,7 @@ export async function rubygemsUpdate(rubygemsVersionInput, rubyPrefix) {
 
   if (rubygemsVersionInput === 'latest') {
     console.log('Updating RubyGems to latest version')
-    await exec.exec(gem, ['update', '--system'])
+    await rubygemsLatest(gem, platform, engine, rubyVersion)
   } else if (semver.gt(rubygemsVersionInput, gemVersion)) {
     console.log(`Updating RubyGems to ${rubygemsVersionInput}`)
     await exec.exec(gem, ['update', '--system', rubygemsVersionInput])
@@ -28,3 +29,30 @@ export async function rubygemsUpdate(rubygemsVersionInput, rubyPrefix) {
 
   return true
 }
+
+// Older RubyGems versions do not account for 'required_ruby_version' when
+// running 'gem update --system', so we have to force a compatible version of
+// rubygems-update.  See https://github.com/ruby/setup-ruby/pull/551 and
+// https://github.com/rubygems/rubygems/issues/7329
+async function rubygemsLatest(gem, platform, engine, rubyVersion) {
+  if (engine === 'ruby') {
+    const floatVersion = common.floatVersion(rubyVersion)
+    if (common.isHeadVersion(rubyVersion)) {
+      console.log('Ruby master builds use included RubyGems')
+    } else if (floatVersion >= 3.0) {
+      await exec.exec(gem, ['update', '--system'])
+    } else if (floatVersion >= 2.6) {
+      await exec.exec(gem, ['update', '--system', '3.4.22'])
+    } else if (floatVersion >= 2.3) {
+      await exec.exec(gem, ['update', '--system', '3.3.27'])
+    } else if (floatVersion >= 1.9) {
+      await exec.exec(`${gem} install rubygems-update -v 2.7.11 --no-document`)
+      await exec.exec('update_rubygems')
+    } else {
+      console.log(`Cannot update RubyGems for Ruby version ${rubyVersion}`)
+    }
+  } else {
+    // non MRI Rubies (TruffleRuby and JRuby)
+    await exec.exec(gem, ['update', '--system'])
+  }
+}

windows-versions.json

@@ -49,14 +49,20 @@
   "3.0.4": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.4-1/rubyinstaller-3.0.4-1-x64.7z",
   "3.0.5": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.5-1/rubyinstaller-3.0.5-1-x64.7z",
   "3.0.6": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.6-1/rubyinstaller-3.0.6-1-x64.7z",
+  "3.0.7": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.7-1/rubyinstaller-3.0.7-1-x64.7z",
   "3.1.0": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.0-1/rubyinstaller-3.1.0-1-x64.7z",
   "3.1.1": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.1-1/rubyinstaller-3.1.1-1-x64.7z",
   "3.1.2": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.2-1/rubyinstaller-3.1.2-1-x64.7z",
   "3.1.3": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.3-1/rubyinstaller-3.1.3-1-x64.7z",
   "3.1.4": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.4-1/rubyinstaller-3.1.4-1-x64.7z",
+  "3.1.5": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.5-1/rubyinstaller-3.1.5-1-x64.7z",
   "3.2.0": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.2.0-1/rubyinstaller-3.2.0-1-x64.7z",
   "3.2.1": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.2.1-1/rubyinstaller-3.2.1-1-x64.7z",
   "3.2.2": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.2.2-1/rubyinstaller-3.2.2-1-x64.7z",
+  "3.2.3": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.2.3-1/rubyinstaller-3.2.3-1-x64.7z",
+  "3.2.4": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.2.4-1/rubyinstaller-3.2.4-1-x64.7z",
+  "3.3.0": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.3.0-1/rubyinstaller-3.3.0-1-x64.7z",
+  "3.3.1": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.3.1-1/rubyinstaller-3.3.1-1-x64.7z",
   "head": "https://github.com/oneclick/rubyinstaller2/releases/download/rubyinstaller-head/rubyinstaller-head-x64.7z",
   "mingw": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mingw.7z",
   "mswin": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mswin.7z",

windows.js

@@ -65,12 +65,17 @@ export async function install(platform, engine, version) {
     rubyPrefix = `${drive}:\\${base}`
   }
 
-  let toolchainPaths = (version === 'mswin') ? await setupMSWin() : await setupMingw(version)
-
   if (!inToolCache) {
     await downloadAndExtract(engine, version, url, base, rubyPrefix);
   }
 
+  const windowsToolchain = core.getInput('windows-toolchain')
+  if (windowsToolchain === 'none') {
+    common.setupPath([`${rubyPrefix}\\bin`])
+    return rubyPrefix
+  }
+
+  let toolchainPaths = (version === 'mswin') ? await setupMSWin() : await setupMingw(version)
   const msys2Type = common.setupPath([`${rubyPrefix}\\bin`, ...toolchainPaths])
 
   // install msys2 tools for all Ruby versions, only install mingw or ucrt for Rubies >= 2.4