Add support for Ubuntu 20.04

* Inputs are passed as simple object properties.
* It is recommended to expose the same inputs for other actions.
* See #58 and #33.

.github/workflows/release.yml

@@ -0,0 +1,12 @@
+name: Update the v1 branch when a release is published
+on:
+  release:
+    types: [published]
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - run: git push origin HEAD:v1

.github/workflows/test.yml

@@ -3,38 +3,43 @@ on:
   pull_request:
   push:
     branches-ignore:
-    - master
     - v1
     tags-ignore:
     - '*'
     paths-ignore:
     - README.md
 jobs:
-  common:
+  test:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, macos-latest, windows-latest ]
+        os: [ ubuntu, macos, windows ]
-        # Use various version syntaxes here for testing
+        # Use various version syntax here for testing
-        ruby: [ 2.2, 2.3, 2.4, 2.5, 2.6.6, 2.7, ruby-head, jruby-9.1, jruby, jruby-head, truffleruby, truffleruby-head ]
+        ruby: [ 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, ruby: rubinius }
+        - { os: windows, ruby: mingw }
+        - { os: windows, ruby: mswin }
         exclude:
-        - os: windows-latest
+        - { os: windows, ruby: debug }
-          ruby: truffleruby
+        - { os: windows, ruby: truffleruby }
-        - os: windows-latest
+        - { os: windows, ruby: truffleruby-head }
-          ruby: truffleruby-head
+
     name: ${{ matrix.os }} ${{ matrix.ruby }}
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}-latest
     steps:
     - uses: actions/checkout@v2
+
     - uses: ./
       with:
         ruby-version: ${{ matrix.ruby }}
     - run: ruby -v
+
     - name: build compiler
       run: |
         ruby -e "puts 'build compiler: ' + RbConfig::CONFIG.fetch('CC_VERSION_MESSAGE', 'unknown').lines.first"
     - name: gcc and ridk version (mingw)
-      if: startsWith(matrix.os, 'windows')
+      if: matrix.os == 'windows'
       run: |
         $abi, $plat = $(ruby -e "STDOUT.write RbConfig::CONFIG['ruby_version'] + ' ' + RUBY_PLATFORM").split(' ')
         if ($plat.Contains('mingw')) {
@@ -45,76 +50,25 @@ jobs:
             echo 'ridk is unavailable'
           }
         }
-    - name: Subprocess test
-      run: ruby test_subprocess.rb
-    - name: OpenSSL version
-      run: ruby -ropenssl -e 'puts OpenSSL::OPENSSL_LIBRARY_VERSION'
-    - name: OpenSSL test
-      run: ruby -ropen-uri -e 'puts open(%{https://rubygems.org/}) { |f| f.read(1024) }'
-    - name: C extension test
-      run: gem install json:2.2.0 --no-document
-    - run: bundle --version
-    - run: bundle install
-    - run: bundle exec rake --version
-    - name: which ruby, rake
-      if: startsWith(matrix.os, 'windows') == false
-      run: which -a ruby rake
-    - name: where ruby, rake
-      if: startsWith(matrix.os, 'windows')
-      run: |
-        $ErrorActionPreference = 'Continue'
-        $where = 'ruby', 'rake'
-        foreach ($e in $where) {
-          $rslt = where.exe $e 2>&1 | Out-String
-          if ($rslt.contains($e)) { echo $rslt.Trim() }
-          else { echo "Can't find $e" }
-          echo ''
-        }
 
-  specials:
-    strategy:
-      fail-fast: false
-      matrix:
-        cfg:
-        - { ruby: rubinius, os: ubuntu-18.04   }
-        - { ruby: mingw   , os: windows-latest }
-        - { ruby: mswin   , os: windows-latest }
-    name: ${{ matrix.cfg.os }} ${{ matrix.cfg.ruby }}
-    runs-on: ${{ matrix.cfg.os }}
-    steps:
-    - uses: actions/checkout@v2
-    - uses: ./
-      with:
-        ruby-version: ${{ matrix.cfg.ruby }}
-    - run: ruby -v
-    - name: build compiler
-      run: |
-        ruby -e "puts 'build compiler: ' + RbConfig::CONFIG.fetch('CC_VERSION_MESSAGE', 'unknown').lines.first"
-    - name: gcc and ridk version (mingw)
-      if: startsWith(matrix.os, 'windows')
-      run: |
-        $abi, $plat = $(ruby -e "STDOUT.write RbConfig::CONFIG['ruby_version'] + ' ' + RUBY_PLATFORM").split(' ')
-        if ($plat.Contains('mingw')) {
-          gcc --version
-          if ($abi -ge '2.4') {
-            ridk version
-          } else {
-            echo 'ridk is unavailable'
-          }
-        }
     - name: Subprocess test
       run: ruby test_subprocess.rb
     - name: OpenSSL version
       run: ruby -ropenssl -e 'puts OpenSSL::OPENSSL_LIBRARY_VERSION'
     - name: OpenSSL test
       run: ruby -ropen-uri -e 'puts open(%{https://rubygems.org/}) { |f| f.read(1024) }'
+
     - name: C extension test
       run: gem install json:2.2.0 --no-document
     - run: bundle --version
     - run: bundle install
     - run: bundle exec rake --version
+
+    - name: which ruby, rake
+      if: matrix.os != 'windows'
+      run: which -a ruby rake
     - name: where ruby, rake
-      if: startsWith(matrix.cfg.os, 'windows')
+      if: matrix.os == 'windows'
       run: |
         $ErrorActionPreference = 'Continue'
         $where = 'ruby', 'rake'

README.md

@@ -14,11 +14,12 @@ This action currently supports these versions of MRI, JRuby and TruffleRuby:
 
 | Interpreter | Versions |
 | ----------- | -------- |
-| Ruby | 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, 2.7.1, head, mingw, mswin |
+| Ruby | 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, 2.7.1, head, debug, mingw, mswin |
 | JRuby | 9.1.17.0, 9.2.9.0 - 9.2.11.1, head |
-| TruffleRuby | 19.3.0 - 20.0.0, head |
+| TruffleRuby | 19.3.0 - 20.1.0, 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.
 
 Ruby 2.2 resolves to 2.2.6 on Windows (last build from RubyInstaller) and 2.2.10 otherwise.  
@@ -34,7 +35,7 @@ The action works for all [GitHub-hosted runners](https://help.github.com/en/acti
 
 | Operating System | Versions |
 | ----------- | -------- |
-| Ubuntu  | `ubuntu-latest` (= `ubuntu-18.04`), `ubuntu-16.04` |
+| Ubuntu  | `ubuntu-20.04`, `ubuntu-latest` (= `ubuntu-18.04`), `ubuntu-16.04` |
 | macOS   | `macos-latest` |
 | Windows | `windows-latest` |
 
@@ -63,13 +64,14 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.6
+        ruby-version: 2.6 # Not needed with a .ruby-version file
-    - run: ruby -v
+    - run: bundle install
+    - run: bundle exec rake
 ```
 
 ### Matrix
 
-This matrix tests all stable releases of MRI, JRuby and TruffleRuby on Ubuntu and macOS.
+This matrix tests all stable releases and `head` versions of MRI, JRuby and TruffleRuby on Ubuntu and macOS.
 
 ```yaml
 name: My workflow
@@ -79,17 +81,23 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, macos-latest ]
+        os: [ubuntu, macos]
-        ruby: [ 2.4, 2.5, 2.6, 2.7, jruby, truffleruby ]
+        ruby: [2.5, 2.6, 2.7, head, debug, jruby, jruby-head, truffleruby, truffleruby-head]
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}-latest
+    continue-on-error: ${{ endsWith(matrix.ruby, 'head') || matrix.ruby == 'debug' }}
     steps:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
-    - run: ruby -v
+    - run: bundle install
+    - run: bundle exec rake
 ```
 
+See the GitHub Actions documentation for more details about the
+[workflow syntax](https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions)
+and the [condition and expression syntax](https://help.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions).
+
 ### Supported Version Syntax
 
 * engine-version like `ruby-2.6.5` and `truffleruby-19.3.0`
@@ -104,7 +112,7 @@ jobs:
 
 By default, if there is a `Gemfile.lock` file with a `BUNDLED WITH` section,
 the latest version of Bundler with the same major version will be installed.
-Otherwise, the latest Bundler version is installed (except for Ruby 2.2 where only Bundler 1 is supported).
+Otherwise, the latest Bundler version is installed (except for Ruby 2.2 and 2.3 where only Bundler 1 is supported).
 
 This behavior can be customized, see [action.yml](action.yml) for details about the `bundler` input.
 
@@ -121,8 +129,9 @@ You can cache the installed gems with these two steps:
           bundle-use-ruby-${{ matrix.os }}-${{ matrix.ruby }}-
     - name: bundle install
       run: |
+        bundle config deployment true
         bundle config path vendor/bundle
-        bundle install --jobs 4 --retry 3
+        bundle install --jobs 4
 ```
 
 When using a single OS, replace `${{ matrix.os }}` with the OS.  
@@ -134,6 +143,11 @@ This uses the [cache action](https://github.com/actions/cache).
 The code above is a more complete version of the [Ruby - Bundler example](https://github.com/actions/cache/blob/master/examples.md#ruby---bundler).
 Make sure to include `use-ruby` in the `key` to avoid conflicting with previous caches.
 
+### Working Directory
+
+The `working-directory` input can be set to resolve `.ruby-version`, `.tool-versions` and `Gemfile.lock`
+if they are not at the root of the repository, see [action.yml](action.yml) for details.
+
 ## Windows
 
 Note that running CI on Windows can be quite challenging if you are not very familiar with Windows.
@@ -146,15 +160,22 @@ It is recommended to first get your build working on Ubuntu and macOS before try
 * For Ruby < 2.4, the DevKit MSYS tools are installed and prepended to the `Path`.
 * JRuby on Windows has a known bug that `bundle exec rake` [fails](https://github.com/ruby/setup-ruby/issues/18).
 
-## Limitations
-
-* This action currently only works with GitHub-hosted runners, not private runners.
-
 ## Versioning
 
+It is highly recommended to use `ruby/setup-ruby@v1` for the version of this action.
+This will provide the best experience by automatically getting bug fixes, new Ruby versions and new features.
+
+If you instead choose a specific version (v1.2.3) or a commit sha, there will be no automatic bug fixes and
+it will be your responsibility to update every time the action no longer works.
+Make sure to always use the latest release before reporting an issue on GitHub.
+
 This action follows semantic versioning with a moving `v1` branch.
 This follows the [recommendations](https://github.com/actions/toolkit/blob/master/docs/action-versioning.md) of GitHub Actions.
 
+## Limitations
+
+* This action currently only works with GitHub-hosted runners, not private runners.
+
 ## History
 
 This action used to be at `eregon/use-ruby-action` and was moved to the `ruby` organization.
@@ -163,5 +184,5 @@ Please [update](https://github.com/ruby/setup-ruby/releases/tag/v1.13.0) if you
 ## Credits
 
 The current maintainer of this action is @eregon.
-Most of the Windows logic is from https://github.com/MSP-Greg/actions-ruby by MSP-Greg.
+Most of the Windows logic is based on work by MSP-Greg.
 Many thanks to MSP-Greg and Lars Kanis for the help with Ruby Installer.

action.yml

@@ -6,13 +6,17 @@ branding:
   icon: download
 inputs:
   ruby-version:
-    description: 'Engine and version to use, see the syntax in the README. Reads from .ruby-version if unset.'
+    description: 'Engine and version to use, see the syntax in the README. Reads from .ruby-version or .tool-versions if unset.'
     required: false
     default: 'default'
   bundler:
     description: 'The version of Bundler to install. Either none, 1, 2, latest or Gemfile.lock. The default tries Gemfile.lock and otherwise uses latest.'
     required: false
     default: 'default'
+  working-directory:
+    description: 'The working directory to use for resolving paths for .ruby-version, .tool-versions and Gemfile.lock.'
+    required: false
+    default: '.'
 outputs:
   ruby-prefix:
     description: 'The prefix of the installed ruby'

common.js

@@ -0,0 +1,44 @@
+const os = require('os')
+const fs = require('fs')
+const core = require('@actions/core')
+const { performance } = require('perf_hooks')
+
+export async function measure(name, block) {
+  return await core.group(name, async () => {
+    const start = performance.now()
+    try {
+      return await block()
+    } finally {
+      const end = performance.now()
+      const duration = (end - start) / 1000.0
+      console.log(`Took ${duration.toFixed(2).padStart(6)} seconds`)
+    }
+  })
+}
+
+export function isHeadVersion(rubyVersion) {
+  return rubyVersion === 'head' || rubyVersion === 'debug' || rubyVersion === 'mingw' || rubyVersion === 'mswin'
+}
+
+export function getVirtualEnvironmentName() {
+  const platform = os.platform()
+  if (platform === 'linux') {
+    return `ubuntu-${findUbuntuVersion()}`
+  } else if (platform === 'darwin') {
+    return 'macos-latest'
+  } else if (platform === 'win32') {
+    return 'windows-latest'
+  } else {
+    throw new Error(`Unknown platform ${platform}`)
+  }
+}
+
+function findUbuntuVersion() {
+  const lsb_release = fs.readFileSync('/etc/lsb-release', 'utf8')
+  const match = lsb_release.match(/^DISTRIB_RELEASE=(\d+\.\d+)$/m)
+  if (match) {
+    return match[1]
+  } else {
+    throw new Error('Could not find Ubuntu version')
+  }
+}

dist/index.js

@@ -356,13 +356,20 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
 Object.defineProperty(exports, "__esModule", { value: true });
-const os = __webpack_require__(87);
+const os = __importStar(__webpack_require__(87));
-const events = __webpack_require__(614);
+const events = __importStar(__webpack_require__(614));
-const child = __webpack_require__(129);
+const child = __importStar(__webpack_require__(129));
-const path = __webpack_require__(622);
+const path = __importStar(__webpack_require__(622));
-const io = __webpack_require__(1);
+const io = __importStar(__webpack_require__(1));
-const ioUtil = __webpack_require__(672);
+const ioUtil = __importStar(__webpack_require__(672));
 /* eslint-disable @typescript-eslint/unbound-method */
 const IS_WINDOWS = process.platform === 'win32';
 /*
@@ -806,6 +813,12 @@ class ToolRunner extends events.EventEmitter {
                         resolve(exitCode);
                     }
                 });
+                if (this.options.input) {
+                    if (!cp.stdin) {
+                        throw new Error('child process missing stdin');
+                    }
+                    cp.stdin.end(this.options.input);
+                }
             });
         });
     }
@@ -956,41 +969,64 @@ module.exports = require("os");
 "use strict";
 __webpack_require__.r(__webpack_exports__);
 /* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "run", function() { return run; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setupRuby", function() { return setupRuby; });
 const os = __webpack_require__(87)
 const fs = __webpack_require__(747)
 const path = __webpack_require__(622)
 const core = __webpack_require__(470)
 const exec = __webpack_require__(986)
+const common = __webpack_require__(239)
+
+const inputDefaults = {
+  'ruby-version': 'default',
+  'bundler': 'default',
+  'working-directory': '.',
+}
 
 async function run() {
   try {
-    const platform = getVirtualEnvironmentName()
+    const options = {}
-    const [engine, version] = parseRubyEngineAndVersion(core.getInput('ruby-version'))
+    for (const key in inputDefaults) {
-
+      options[key] = core.getInput(key)
-    let installer
-    if (platform === 'windows-latest' && engine !== 'jruby') {
-      installer = __webpack_require__(826)
-    } else {
-      installer = __webpack_require__(489)
     }
-
+    await setupRuby(options)
-    const engineVersions = installer.getAvailableVersions(platform, engine)
-    const ruby = validateRubyEngineAndVersion(platform, engineVersions, engine, version)
-
-    createGemRC()
-
-    const [rubyPrefix, newPathEntries] = await installer.install(platform, ruby)
-
-    setupPath(ruby, newPathEntries)
-
-    await installBundler(platform, rubyPrefix, engine, version)
-
-    core.setOutput('ruby-prefix', rubyPrefix)
   } catch (error) {
     core.setFailed(error.message)
   }
 }
 
+async function setupRuby(options) {
+  const inputs = { ...inputDefaults, ...options }
+
+  process.chdir(inputs['working-directory'])
+
+  const platform = common.getVirtualEnvironmentName()
+  const [engine, parsedVersion] = parseRubyEngineAndVersion(inputs['ruby-version'])
+
+  let installer
+  if (platform === 'windows-latest' && engine !== 'jruby') {
+    installer = __webpack_require__(826)
+  } else {
+    installer = __webpack_require__(489)
+  }
+
+  const engineVersions = installer.getAvailableVersions(platform, engine)
+  const version = validateRubyEngineAndVersion(platform, engineVersions, engine, parsedVersion)
+
+  createGemRC()
+
+  const [rubyPrefix, newPathEntries] = await installer.install(platform, engine, version)
+
+  setupPath(newPathEntries)
+
+  if (inputs['bundler'] !== 'none') {
+    await common.measure('Installing Bundler', async () =>
+      installBundler(inputs['bundler'], platform, rubyPrefix, engine, version))
+  }
+
+  core.setOutput('ruby-prefix', rubyPrefix)
+}
+
 function parseRubyEngineAndVersion(rubyVersion) {
   if (rubyVersion === 'default') {
     if (fs.existsSync('.ruby-version')) {
@@ -1013,7 +1049,7 @@ function parseRubyEngineAndVersion(rubyVersion) {
   }
 
   let engine, version
-  if (rubyVersion.match(/^(\d+|head|mingw|mswin)/)) { // X.Y.Z => ruby-X.Y.Z
+  if (rubyVersion.match(/^(\d+)/) || common.isHeadVersion(rubyVersion)) { // X.Y.Z => ruby-X.Y.Z
     engine = 'ruby'
     version = rubyVersion
   } else if (!rubyVersion.includes('-')) { // myruby -> myruby-stableVersion
@@ -1026,24 +1062,25 @@ function parseRubyEngineAndVersion(rubyVersion) {
   return [engine, version]
 }
 
-function validateRubyEngineAndVersion(platform, engineVersions, engine, version) {
+function validateRubyEngineAndVersion(platform, engineVersions, engine, parsedVersion) {
   if (!engineVersions) {
     throw new Error(`Unknown engine ${engine} on ${platform}`)
   }
 
-  if (!engineVersions.includes(version)) {
+  let version = parsedVersion
+  if (!engineVersions.includes(parsedVersion)) {
     const latestToFirstVersion = engineVersions.slice().reverse()
-    const found = latestToFirstVersion.find(v => v !== 'head' && v.startsWith(version))
+    const found = latestToFirstVersion.find(v => !common.isHeadVersion(v) && v.startsWith(parsedVersion))
     if (found) {
       version = found
     } else {
-      throw new Error(`Unknown version ${version} for ${engine} on ${platform}
+      throw new Error(`Unknown version ${parsedVersion} for ${engine} on ${platform}
         available versions for ${engine} on ${platform}: ${engineVersions.join(', ')}
         File an issue at https://github.com/ruby/setup-ruby/issues if would like support for a new version`)
     }
   }
 
-  return engine + '-' + version
+  return version
 }
 
 function createGemRC() {
@@ -1053,20 +1090,22 @@ function createGemRC() {
   }
 }
 
-function setupPath(ruby, newPathEntries) {
+function setupPath(newPathEntries) {
-    const originalPath = process.env['PATH'].split(path.delimiter)
+  const originalPath = process.env['PATH'].split(path.delimiter)
-    let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
+  let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
 
-    if (cleanPath.length !== originalPath.length) {
+  if (cleanPath.length !== originalPath.length) {
-        console.log("Entries removed from PATH to avoid conflicts with Ruby:")
+    core.startGroup('Cleaning PATH')
-        for (const entry of originalPath) {
+    console.log('Entries removed from PATH to avoid conflicts with Ruby:')
-            if (!cleanPath.includes(entry)) {
+    for (const entry of originalPath) {
-                console.log(`  ${entry}`)
+      if (!cleanPath.includes(entry)) {
-            }
+        console.log(`  ${entry}`)
-        }
+      }
     }
+    core.endGroup()
+  }
 
-    core.exportVariable('PATH', [...newPathEntries, ...cleanPath].join(path.delimiter))
+  core.exportVariable('PATH', [...newPathEntries, ...cleanPath].join(path.delimiter))
 }
 
 function readBundledWithFromGemfileLock() {
@@ -1087,11 +1126,8 @@ function readBundledWithFromGemfileLock() {
   return null
 }
 
-async function installBundler(platform, rubyPrefix, engine, rubyVersion) {
+async function installBundler(bundlerVersionInput, platform, rubyPrefix, engine, rubyVersion) {
-  var bundlerVersion = core.getInput('bundler')
+  var bundlerVersion = bundlerVersionInput
-  if (bundlerVersion === 'none') {
-    return
-  }
 
   if (bundlerVersion === 'default' || bundlerVersion === 'Gemfile.lock') {
     bundlerVersion = readBundledWithFromGemfileLock()
@@ -1100,47 +1136,33 @@ async function installBundler(platform, rubyPrefix, engine, rubyVersion) {
     }
   }
 
-  let versionArray
+  if (bundlerVersion === 'latest') {
-  if (rubyVersion.startsWith('2.2')) {
+    bundlerVersion = '2'
-    console.log('Bundler 2 requires Ruby 2.3+, using Bundler 1 on Ruby 2.2')
+  }
-    versionArray = ['-v', '~> 1']
+
-  } else if (/^\d+/.test(bundlerVersion)) {
+  if (/^\d+/.test(bundlerVersion)) {
-    versionArray = ['-v', `~> ${bundlerVersion}`]
+    // OK
-  } else if (bundlerVersion === 'latest') {
-    versionArray = []
   } else {
     throw new Error(`Cannot parse bundler input: ${bundlerVersion}`)
   }
 
-  if (engine === 'rubinius') {
+  if (rubyVersion.startsWith('2.2')) {
+    console.log('Bundler 2 requires Ruby 2.3+, using Bundler 1 on Ruby 2.2')
+    bundlerVersion = '1'
+  } else if (rubyVersion.startsWith('2.3')) {
+    console.log('Ruby 2.3 has a bug with Bundler 2 (https://github.com/rubygems/rubygems/issues/3570), using Bundler 1 instead on Ruby 2.3')
+    bundlerVersion = '1'
+  }
+
+  if (engine === 'ruby' && common.isHeadVersion(rubyVersion) && bundlerVersion === '2') {
+    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 if (bundlerVersion === '1' && engine === 'truffleruby') {
-    console.log(`Using the Bundler version shipped with ${engine}`)
   } else {
-    await exec.exec(path.join(rubyPrefix, 'bin', 'gem'), ['install', 'bundler', ...versionArray, '--no-document'])
+    const gem = path.join(rubyPrefix, 'bin', 'gem')
-  }
+    await exec.exec(gem, ['install', 'bundler', '-v', `~> ${bundlerVersion}`, '--no-document'])
-}
-
-function getVirtualEnvironmentName() {
-  const platform = os.platform()
-  if (platform === 'linux') {
-    return `ubuntu-${findUbuntuVersion()}`
-  } else if (platform === 'darwin') {
-    return 'macos-latest'
-  } else if (platform === 'win32') {
-    return 'windows-latest'
-  } else {
-    throw new Error(`Unknown platform ${platform}`)
-  }
-}
-
-function findUbuntuVersion() {
-  const lsb_release = fs.readFileSync('/etc/lsb-release', 'utf8')
-  const match = lsb_release.match(/^DISTRIB_RELEASE=(\d+\.\d+)$/m)
-  if (match) {
-    return match[1]
-  } else {
-    throw new Error('Could not find Ubuntu version')
   }
 }
 
@@ -1458,7 +1480,7 @@ function getVersions(platform) {
       "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",
       "2.6.0", "2.6.1", "2.6.2", "2.6.3", "2.6.4", "2.6.5", "2.6.6",
       "2.7.0", "2.7.1",
-      "head"
+      "head", "debug",
     ],
     "jruby": [
       "9.1.17.0",
@@ -1467,7 +1489,7 @@ function getVersions(platform) {
     ],
     "truffleruby": [
       "19.3.0", "19.3.1",
-      "20.0.0",
+      "20.0.0", "20.1.0",
       "head"
     ]
   }
@@ -1489,6 +1511,62 @@ function getVersions(platform) {
 
 module.exports = require("https");
 
+/***/ }),
+
+/***/ 239:
+/***/ (function(__unusedmodule, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "measure", function() { return measure; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHeadVersion", function() { return isHeadVersion; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getVirtualEnvironmentName", function() { return getVirtualEnvironmentName; });
+const os = __webpack_require__(87)
+const fs = __webpack_require__(747)
+const core = __webpack_require__(470)
+const { performance } = __webpack_require__(630)
+
+async function measure(name, block) {
+  return await core.group(name, async () => {
+    const start = performance.now()
+    try {
+      return await block()
+    } finally {
+      const end = performance.now()
+      const duration = (end - start) / 1000.0
+      console.log(`Took ${duration.toFixed(2).padStart(6)} seconds`)
+    }
+  })
+}
+
+function isHeadVersion(rubyVersion) {
+  return rubyVersion === 'head' || rubyVersion === 'debug' || rubyVersion === 'mingw' || rubyVersion === 'mswin'
+}
+
+function getVirtualEnvironmentName() {
+  const platform = os.platform()
+  if (platform === 'linux') {
+    return `ubuntu-${findUbuntuVersion()}`
+  } else if (platform === 'darwin') {
+    return 'macos-latest'
+  } else if (platform === 'win32') {
+    return 'windows-latest'
+  } else {
+    throw new Error(`Unknown platform ${platform}`)
+  }
+}
+
+function findUbuntuVersion() {
+  const lsb_release = fs.readFileSync('/etc/lsb-release', 'utf8')
+  const match = lsb_release.match(/^DISTRIB_RELEASE=(\d+\.\d+)$/m)
+  if (match) {
+    return match[1]
+  } else {
+    throw new Error('Could not find Ubuntu version')
+  }
+}
+
+
 /***/ }),
 
 /***/ 280:
@@ -3473,6 +3551,7 @@ const path = __webpack_require__(622)
 const exec = __webpack_require__(986)
 const io = __webpack_require__(1)
 const tc = __webpack_require__(533)
+const common = __webpack_require__(239)
 const rubyBuilderVersions = __webpack_require__(156)
 
 const builderReleaseTag = 'enable-shared'
@@ -3482,10 +3561,10 @@ function getAvailableVersions(platform, engine) {
   return rubyBuilderVersions.getVersions(platform)[engine]
 }
 
-async function install(platform, ruby) {
+async function install(platform, engine, version) {
-  const rubyPrefix = await downloadAndExtract(platform, ruby)
+  const rubyPrefix = await downloadAndExtract(platform, engine, version)
   let newPathEntries
-  if (ruby.startsWith('rubinius')) {
+  if (engine === 'rubinius') {
     newPathEntries = [path.join(rubyPrefix, 'bin'), path.join(rubyPrefix, 'gems', 'bin')]
   } else {
     newPathEntries = [path.join(rubyPrefix, 'bin')]
@@ -3493,31 +3572,33 @@ async function install(platform, ruby) {
   return [rubyPrefix, newPathEntries]
 }
 
-async function downloadAndExtract(platform, ruby) {
+async function downloadAndExtract(platform, engine, version) {
   const rubiesDir = path.join(os.homedir(), '.rubies')
   await io.mkdirP(rubiesDir)
 
-  const url = await getDownloadURL(platform, ruby)
+  const downloadPath = await common.measure('Downloading Ruby', async () => {
-  console.log(url)
+    const url = getDownloadURL(platform, engine, version)
+    console.log(url)
+    return await tc.downloadTool(url)
+  })
 
-  const downloadPath = await tc.downloadTool(url)
   const tar = platform.startsWith('windows') ? 'C:\\Windows\\system32\\tar.exe' : 'tar'
-  await exec.exec(tar, [ '-xz', '-C', rubiesDir, '-f',  downloadPath ])
+  await common.measure('Extracting Ruby', async () =>
+    exec.exec(tar, [ '-xz', '-C', rubiesDir, '-f',  downloadPath ]))
 
-  return path.join(rubiesDir, ruby)
+  return path.join(rubiesDir, `${engine}-${version}`)
 }
 
-function getDownloadURL(platform, ruby) {
+function getDownloadURL(platform, engine, version) {
-  if (ruby.endsWith('-head')) {
+  if (common.isHeadVersion(version)) {
-    return getLatestHeadBuildURL(platform, ruby)
+    return getLatestHeadBuildURL(platform, engine, version)
   } else {
-    return `${releasesURL}/download/${builderReleaseTag}/${ruby}-${platform}.tar.gz`
+    return `${releasesURL}/download/${builderReleaseTag}/${engine}-${version}-${platform}.tar.gz`
   }
 }
 
-function getLatestHeadBuildURL(platform, ruby) {
+function getLatestHeadBuildURL(platform, engine, version) {
-  const engine = ruby.split('-')[0]
+  return `https://github.com/ruby/${engine}-dev-builder/releases/latest/download/${engine}-${version}-${platform}.tar.gz`
-  return `https://github.com/ruby/${engine}-dev-builder/releases/latest/download/${engine}-head-${platform}.tar.gz`
 }
 
 
@@ -4100,6 +4181,7 @@ var HttpCodes;
     HttpCodes[HttpCodes["RequestTimeout"] = 408] = "RequestTimeout";
     HttpCodes[HttpCodes["Conflict"] = 409] = "Conflict";
     HttpCodes[HttpCodes["Gone"] = 410] = "Gone";
+    HttpCodes[HttpCodes["TooManyRequests"] = 429] = "TooManyRequests";
     HttpCodes[HttpCodes["InternalServerError"] = 500] = "InternalServerError";
     HttpCodes[HttpCodes["NotImplemented"] = 501] = "NotImplemented";
     HttpCodes[HttpCodes["BadGateway"] = 502] = "BadGateway";
@@ -4124,8 +4206,18 @@ function getProxyUrl(serverUrl) {
     return proxyUrl ? proxyUrl.href : '';
 }
 exports.getProxyUrl = getProxyUrl;
-const HttpRedirectCodes = [HttpCodes.MovedPermanently, HttpCodes.ResourceMoved, HttpCodes.SeeOther, HttpCodes.TemporaryRedirect, HttpCodes.PermanentRedirect];
+const HttpRedirectCodes = [
-const HttpResponseRetryCodes = [HttpCodes.BadGateway, HttpCodes.ServiceUnavailable, HttpCodes.GatewayTimeout];
+    HttpCodes.MovedPermanently,
+    HttpCodes.ResourceMoved,
+    HttpCodes.SeeOther,
+    HttpCodes.TemporaryRedirect,
+    HttpCodes.PermanentRedirect
+];
+const HttpResponseRetryCodes = [
+    HttpCodes.BadGateway,
+    HttpCodes.ServiceUnavailable,
+    HttpCodes.GatewayTimeout
+];
 const RetryableHttpVerbs = ['OPTIONS', 'GET', 'DELETE', 'HEAD'];
 const ExponentialBackoffCeiling = 10;
 const ExponentialBackoffTimeSlice = 5;
@@ -4250,18 +4342,22 @@ class HttpClient {
      */
     async request(verb, requestUrl, data, headers) {
         if (this._disposed) {
-            throw new Error("Client has already been disposed.");
+            throw new Error('Client has already been disposed.');
         }
         let parsedUrl = url.parse(requestUrl);
         let info = this._prepareRequest(verb, parsedUrl, headers);
         // Only perform retries on reads since writes may not be idempotent.
-        let maxTries = (this._allowRetries && RetryableHttpVerbs.indexOf(verb) != -1) ? this._maxRetries + 1 : 1;
+        let maxTries = this._allowRetries && RetryableHttpVerbs.indexOf(verb) != -1
+            ? this._maxRetries + 1
+            : 1;
         let numTries = 0;
         let response;
         while (numTries < maxTries) {
             response = await this.requestRaw(info, data);
             // Check if it's an authentication challenge
-            if (response && response.message && response.message.statusCode === HttpCodes.Unauthorized) {
+            if (response &&
+                response.message &&
+                response.message.statusCode === HttpCodes.Unauthorized) {
                 let authenticationHandler;
                 for (let i = 0; i < this.handlers.length; i++) {
                     if (this.handlers[i].canHandleAuthentication(response)) {
@@ -4279,21 +4375,32 @@ class HttpClient {
                 }
             }
             let redirectsRemaining = this._maxRedirects;
-            while (HttpRedirectCodes.indexOf(response.message.statusCode) != -1
+            while (HttpRedirectCodes.indexOf(response.message.statusCode) != -1 &&
-                && this._allowRedirects
+                this._allowRedirects &&
-                && redirectsRemaining > 0) {
+                redirectsRemaining > 0) {
-                const redirectUrl = response.message.headers["location"];
+                const redirectUrl = response.message.headers['location'];
                 if (!redirectUrl) {
                     // if there's no location to redirect to, we won't
                     break;
                 }
                 let parsedRedirectUrl = url.parse(redirectUrl);
-                if (parsedUrl.protocol == 'https:' && parsedUrl.protocol != parsedRedirectUrl.protocol && !this._allowRedirectDowngrade) {
+                if (parsedUrl.protocol == 'https:' &&
-                    throw new Error("Redirect from HTTPS to HTTP protocol. This downgrade is not allowed for security reasons. If you want to allow this behavior, set the allowRedirectDowngrade option to true.");
+                    parsedUrl.protocol != parsedRedirectUrl.protocol &&
+                    !this._allowRedirectDowngrade) {
+                    throw new Error('Redirect from HTTPS to HTTP protocol. This downgrade is not allowed for security reasons. If you want to allow this behavior, set the allowRedirectDowngrade option to true.');
                 }
                 // we need to finish reading the response before reassigning response
                 // which will leak the open socket.
                 await response.readBody();
+                // strip authorization header if redirected to a different hostname
+                if (parsedRedirectUrl.hostname !== parsedUrl.hostname) {
+                    for (let header in headers) {
+                        // header names are case insensitive
+                        if (header.toLowerCase() === 'authorization') {
+                            delete headers[header];
+                        }
+                    }
+                }
                 // let's make the request with the new redirectUrl
                 info = this._prepareRequest(verb, parsedRedirectUrl, headers);
                 response = await this.requestRaw(info, data);
@@ -4344,8 +4451,8 @@ class HttpClient {
      */
     requestRawWithCallback(info, data, onResult) {
         let socket;
-        if (typeof (data) === 'string') {
+        if (typeof data === 'string') {
-            info.options.headers["Content-Length"] = Buffer.byteLength(data, 'utf8');
+            info.options.headers['Content-Length'] = Buffer.byteLength(data, 'utf8');
         }
         let callbackCalled = false;
         let handleResult = (err, res) => {
@@ -4358,7 +4465,7 @@ class HttpClient {
             let res = new HttpClientResponse(msg);
             handleResult(null, res);
         });
-        req.on('socket', (sock) => {
+        req.on('socket', sock => {
             socket = sock;
         });
         // If we ever get disconnected, we want the socket to timeout eventually
@@ -4373,10 +4480,10 @@ class HttpClient {
             // res should have headers
             handleResult(err, null);
         });
-        if (data && typeof (data) === 'string') {
+        if (data && typeof data === 'string') {
             req.write(data, 'utf8');
         }
-        if (data && typeof (data) !== 'string') {
+        if (data && typeof data !== 'string') {
             data.on('close', function () {
                 req.end();
             });
@@ -4403,31 +4510,34 @@ class HttpClient {
         const defaultPort = usingSsl ? 443 : 80;
         info.options = {};
         info.options.host = info.parsedUrl.hostname;
-        info.options.port = info.parsedUrl.port ? parseInt(info.parsedUrl.port) : defaultPort;
+        info.options.port = info.parsedUrl.port
-        info.options.path = (info.parsedUrl.pathname || '') + (info.parsedUrl.search || '');
+            ? parseInt(info.parsedUrl.port)
+            : defaultPort;
+        info.options.path =
+            (info.parsedUrl.pathname || '') + (info.parsedUrl.search || '');
         info.options.method = method;
         info.options.headers = this._mergeHeaders(headers);
         if (this.userAgent != null) {
-            info.options.headers["user-agent"] = this.userAgent;
+            info.options.headers['user-agent'] = this.userAgent;
         }
         info.options.agent = this._getAgent(info.parsedUrl);
         // gives handlers an opportunity to participate
         if (this.handlers) {
-            this.handlers.forEach((handler) => {
+            this.handlers.forEach(handler => {
                 handler.prepareRequest(info.options);
             });
         }
         return info;
     }
     _mergeHeaders(headers) {
-        const lowercaseKeys = obj => Object.keys(obj).reduce((c, k) => (c[k.toLowerCase()] = obj[k], c), {});
+        const lowercaseKeys = obj => Object.keys(obj).reduce((c, k) => ((c[k.toLowerCase()] = obj[k]), c), {});
         if (this.requestOptions && this.requestOptions.headers) {
             return Object.assign({}, lowercaseKeys(this.requestOptions.headers), lowercaseKeys(headers));
         }
         return lowercaseKeys(headers || {});
     }
     _getExistingOrDefaultHeader(additionalHeaders, header, _default) {
-        const lowercaseKeys = obj => Object.keys(obj).reduce((c, k) => (c[k.toLowerCase()] = obj[k], c), {});
+        const lowercaseKeys = obj => Object.keys(obj).reduce((c, k) => ((c[k.toLowerCase()] = obj[k]), c), {});
         let clientHeader;
         if (this.requestOptions && this.requestOptions.headers) {
             clientHeader = lowercaseKeys(this.requestOptions.headers)[header];
@@ -4465,7 +4575,7 @@ class HttpClient {
                     proxyAuth: proxyUrl.auth,
                     host: proxyUrl.hostname,
                     port: proxyUrl.port
-                },
+                }
             };
             let tunnelAgent;
             const overHttps = proxyUrl.protocol === 'https:';
@@ -4492,7 +4602,9 @@ class HttpClient {
             // we don't want to set NODE_TLS_REJECT_UNAUTHORIZED=0 since that will affect request for entire process
             // http.RequestOptions doesn't expose a way to modify RequestOptions.agent.options
             // we have to cast it to any and change it directly
-            agent.options = Object.assign(agent.options || {}, { rejectUnauthorized: false });
+            agent.options = Object.assign(agent.options || {}, {
+                rejectUnauthorized: false
+            });
         }
         return agent;
     }
@@ -4553,7 +4665,7 @@ class HttpClient {
                     msg = contents;
                 }
                 else {
-                    msg = "Failed request: (" + statusCode + ")";
+                    msg = 'Failed request: (' + statusCode + ')';
                 }
                 let err = new Error(msg);
                 // attach statusCode and body obj (if available) to the error object
@@ -4595,6 +4707,13 @@ module.exports = require("path");
 
 /***/ }),
 
+/***/ 630:
+/***/ (function(module) {
+
+module.exports = require("perf_hooks");
+
+/***/ }),
+
 /***/ 631:
 /***/ (function(module) {
 
@@ -4875,6 +4994,7 @@ const cp = __webpack_require__(129)
 const core = __webpack_require__(470)
 const exec = __webpack_require__(986)
 const tc = __webpack_require__(533)
+const common = __webpack_require__(239)
 const rubyInstallerVersions = __webpack_require__(471).versions
 
 // Extract to SSD, see https://github.com/ruby/setup-ruby/pull/14
@@ -4900,18 +5020,21 @@ function getAvailableVersions(platform, engine) {
   }
 }
 
-async function install(platform, ruby) {
+async function install(platform, engine, version) {
-  const version = ruby.split('-', 2)[1]
   const url = rubyInstallerVersions[version]
-  console.log(url)
 
   if (!url.endsWith('.7z')) {
-    throw new Error('URL should end in .7z')
+    throw new Error(`URL should end in .7z: ${url}`)
   }
   const base = url.slice(url.lastIndexOf('/') + 1, url.length - '.7z'.length)
 
-  const downloadPath = await tc.downloadTool(url)
+  const downloadPath = await common.measure('Downloading Ruby', async () => {
-  await exec.exec('7z', ['x', downloadPath, `-xr!${base}\\share\\doc`, `-o${drive}:\\`], { silent: true })
+    console.log(url)
+    return await tc.downloadTool(url)
+  })
+
+  await common.measure('Extracting Ruby', async () =>
+    exec.exec('7z', ['x', downloadPath, `-xr!${base}\\share\\doc`, `-o${drive}:\\`], { silent: true }))
   const rubyPrefix = `${drive}:\\${base}`
 
   let toolchainPaths = (version === 'mswin') ?
@@ -4930,7 +5053,8 @@ async function symLinkToEmbeddedMSYS2() {
   }
   const latestVersion = toolCacheVersions.slice(-1)[0]
   const hostedRuby = tc.find('Ruby', latestVersion)
-  await exec.exec(`cmd /c mklink /D ${msys2} ${hostedRuby}\\msys64`)
+  await common.measure('Linking MSYS2', async () =>
+    exec.exec(`cmd /c mklink /D ${msys2} ${hostedRuby}\\msys64`))
 }
 
 async function setupMingw(version) {
@@ -4938,7 +5062,8 @@ async function setupMingw(version) {
 
   if (version.startsWith('2.2') || version.startsWith('2.3')) {
     core.exportVariable('SSL_CERT_FILE', certFile)
-    await installMSYS(version)
+    await common.measure('Installing MSYS1', async () =>
+      installMSYS(version))
 
     return msysPathEntries
   } else {
@@ -4985,7 +5110,10 @@ async function setupMSWin() {
     await symLinkToEmbeddedMSYS2()
   }
 
-  return [...addVCVARSEnv(), ...msys2PathEntries]
+  const VCPathEntries = await common.measure('Setting up MSVC environment', async () =>
+    addVCVARSEnv())
+
+  return [...VCPathEntries, ...msys2PathEntries]
 }
 
 /* Sets MSVC environment for use in Actions
@@ -5043,12 +5171,10 @@ function getProxyUrl(reqUrl) {
     }
     let proxyVar;
     if (usingSsl) {
-        proxyVar = process.env["https_proxy"] ||
+        proxyVar = process.env['https_proxy'] || process.env['HTTPS_PROXY'];
-            process.env["HTTPS_PROXY"];
     }
     else {
-        proxyVar = process.env["http_proxy"] ||
+        proxyVar = process.env['http_proxy'] || process.env['HTTP_PROXY'];
-            process.env["HTTP_PROXY"];
     }
     if (proxyVar) {
         proxyUrl = url.parse(proxyVar);
@@ -5060,7 +5186,7 @@ function checkBypass(reqUrl) {
     if (!reqUrl.hostname) {
         return false;
     }
-    let noProxy = process.env["no_proxy"] || process.env["NO_PROXY"] || '';
+    let noProxy = process.env['no_proxy'] || process.env['NO_PROXY'] || '';
     if (!noProxy) {
         return false;
     }
@@ -5081,7 +5207,10 @@ function checkBypass(reqUrl) {
         upperReqHosts.push(`${upperReqHosts[0]}:${reqPort}`);
     }
     // Compare request host against noproxy
-    for (let upperNoProxyItem of noProxy.split(',').map(x => x.trim().toUpperCase()).filter(x => x)) {
+    for (let upperNoProxyItem of noProxy
+        .split(',')
+        .map(x => x.trim().toUpperCase())
+        .filter(x => x)) {
         if (upperReqHosts.some(x => x === upperNoProxyItem)) {
             return true;
         }
@@ -5184,8 +5313,15 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
 Object.defineProperty(exports, "__esModule", { value: true });
-const tr = __webpack_require__(9);
+const tr = __importStar(__webpack_require__(9));
 /**
  * Exec a command.
  * Output will be streamed to the live console.

index.js

@@ -3,36 +3,58 @@ const fs = require('fs')
 const path = require('path')
 const core = require('@actions/core')
 const exec = require('@actions/exec')
+const common = require('./common')
+
+const inputDefaults = {
+  'ruby-version': 'default',
+  'bundler': 'default',
+  'working-directory': '.',
+}
 
 export async function run() {
   try {
-    const platform = getVirtualEnvironmentName()
+    const options = {}
-    const [engine, version] = parseRubyEngineAndVersion(core.getInput('ruby-version'))
+    for (const key in inputDefaults) {
-
+      options[key] = core.getInput(key)
-    let installer
-    if (platform === 'windows-latest' && engine !== 'jruby') {
-      installer = require('./windows')
-    } else {
-      installer = require('./ruby-builder')
     }
-
+    await setupRuby(options)
-    const engineVersions = installer.getAvailableVersions(platform, engine)
-    const ruby = validateRubyEngineAndVersion(platform, engineVersions, engine, version)
-
-    createGemRC()
-
-    const [rubyPrefix, newPathEntries] = await installer.install(platform, ruby)
-
-    setupPath(ruby, newPathEntries)
-
-    await installBundler(platform, rubyPrefix, engine, version)
-
-    core.setOutput('ruby-prefix', rubyPrefix)
   } catch (error) {
     core.setFailed(error.message)
   }
 }
 
+export async function setupRuby(options) {
+  const inputs = { ...inputDefaults, ...options }
+
+  process.chdir(inputs['working-directory'])
+
+  const platform = common.getVirtualEnvironmentName()
+  const [engine, parsedVersion] = parseRubyEngineAndVersion(inputs['ruby-version'])
+
+  let installer
+  if (platform === 'windows-latest' && engine !== 'jruby') {
+    installer = require('./windows')
+  } else {
+    installer = require('./ruby-builder')
+  }
+
+  const engineVersions = installer.getAvailableVersions(platform, engine)
+  const version = validateRubyEngineAndVersion(platform, engineVersions, engine, parsedVersion)
+
+  createGemRC()
+
+  const [rubyPrefix, newPathEntries] = await installer.install(platform, engine, version)
+
+  setupPath(newPathEntries)
+
+  if (inputs['bundler'] !== 'none') {
+    await common.measure('Installing Bundler', async () =>
+      installBundler(inputs['bundler'], platform, rubyPrefix, engine, version))
+  }
+
+  core.setOutput('ruby-prefix', rubyPrefix)
+}
+
 function parseRubyEngineAndVersion(rubyVersion) {
   if (rubyVersion === 'default') {
     if (fs.existsSync('.ruby-version')) {
@@ -55,7 +77,7 @@ function parseRubyEngineAndVersion(rubyVersion) {
   }
 
   let engine, version
-  if (rubyVersion.match(/^(\d+|head|mingw|mswin)/)) { // X.Y.Z => ruby-X.Y.Z
+  if (rubyVersion.match(/^(\d+)/) || common.isHeadVersion(rubyVersion)) { // X.Y.Z => ruby-X.Y.Z
     engine = 'ruby'
     version = rubyVersion
   } else if (!rubyVersion.includes('-')) { // myruby -> myruby-stableVersion
@@ -68,24 +90,25 @@ function parseRubyEngineAndVersion(rubyVersion) {
   return [engine, version]
 }
 
-function validateRubyEngineAndVersion(platform, engineVersions, engine, version) {
+function validateRubyEngineAndVersion(platform, engineVersions, engine, parsedVersion) {
   if (!engineVersions) {
     throw new Error(`Unknown engine ${engine} on ${platform}`)
   }
 
-  if (!engineVersions.includes(version)) {
+  let version = parsedVersion
+  if (!engineVersions.includes(parsedVersion)) {
     const latestToFirstVersion = engineVersions.slice().reverse()
-    const found = latestToFirstVersion.find(v => v !== 'head' && v.startsWith(version))
+    const found = latestToFirstVersion.find(v => !common.isHeadVersion(v) && v.startsWith(parsedVersion))
     if (found) {
       version = found
     } else {
-      throw new Error(`Unknown version ${version} for ${engine} on ${platform}
+      throw new Error(`Unknown version ${parsedVersion} for ${engine} on ${platform}
         available versions for ${engine} on ${platform}: ${engineVersions.join(', ')}
         File an issue at https://github.com/ruby/setup-ruby/issues if would like support for a new version`)
     }
   }
 
-  return engine + '-' + version
+  return version
 }
 
 function createGemRC() {
@@ -95,20 +118,22 @@ function createGemRC() {
   }
 }
 
-function setupPath(ruby, newPathEntries) {
+function setupPath(newPathEntries) {
-    const originalPath = process.env['PATH'].split(path.delimiter)
+  const originalPath = process.env['PATH'].split(path.delimiter)
-    let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
+  let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
 
-    if (cleanPath.length !== originalPath.length) {
+  if (cleanPath.length !== originalPath.length) {
-        console.log("Entries removed from PATH to avoid conflicts with Ruby:")
+    core.startGroup('Cleaning PATH')
-        for (const entry of originalPath) {
+    console.log('Entries removed from PATH to avoid conflicts with Ruby:')
-            if (!cleanPath.includes(entry)) {
+    for (const entry of originalPath) {
-                console.log(`  ${entry}`)
+      if (!cleanPath.includes(entry)) {
-            }
+        console.log(`  ${entry}`)
-        }
+      }
     }
+    core.endGroup()
+  }
 
-    core.exportVariable('PATH', [...newPathEntries, ...cleanPath].join(path.delimiter))
+  core.exportVariable('PATH', [...newPathEntries, ...cleanPath].join(path.delimiter))
 }
 
 function readBundledWithFromGemfileLock() {
@@ -129,11 +154,8 @@ function readBundledWithFromGemfileLock() {
   return null
 }
 
-async function installBundler(platform, rubyPrefix, engine, rubyVersion) {
+async function installBundler(bundlerVersionInput, platform, rubyPrefix, engine, rubyVersion) {
-  var bundlerVersion = core.getInput('bundler')
+  var bundlerVersion = bundlerVersionInput
-  if (bundlerVersion === 'none') {
-    return
-  }
 
   if (bundlerVersion === 'default' || bundlerVersion === 'Gemfile.lock') {
     bundlerVersion = readBundledWithFromGemfileLock()
@@ -142,47 +164,33 @@ async function installBundler(platform, rubyPrefix, engine, rubyVersion) {
     }
   }
 
-  let versionArray
+  if (bundlerVersion === 'latest') {
-  if (rubyVersion.startsWith('2.2')) {
+    bundlerVersion = '2'
-    console.log('Bundler 2 requires Ruby 2.3+, using Bundler 1 on Ruby 2.2')
+  }
-    versionArray = ['-v', '~> 1']
+
-  } else if (/^\d+/.test(bundlerVersion)) {
+  if (/^\d+/.test(bundlerVersion)) {
-    versionArray = ['-v', `~> ${bundlerVersion}`]
+    // OK
-  } else if (bundlerVersion === 'latest') {
-    versionArray = []
   } else {
     throw new Error(`Cannot parse bundler input: ${bundlerVersion}`)
   }
 
-  if (engine === 'rubinius') {
+  if (rubyVersion.startsWith('2.2')) {
+    console.log('Bundler 2 requires Ruby 2.3+, using Bundler 1 on Ruby 2.2')
+    bundlerVersion = '1'
+  } else if (rubyVersion.startsWith('2.3')) {
+    console.log('Ruby 2.3 has a bug with Bundler 2 (https://github.com/rubygems/rubygems/issues/3570), using Bundler 1 instead on Ruby 2.3')
+    bundlerVersion = '1'
+  }
+
+  if (engine === 'ruby' && common.isHeadVersion(rubyVersion) && bundlerVersion === '2') {
+    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 if (bundlerVersion === '1' && engine === 'truffleruby') {
-    console.log(`Using the Bundler version shipped with ${engine}`)
   } else {
-    await exec.exec(path.join(rubyPrefix, 'bin', 'gem'), ['install', 'bundler', ...versionArray, '--no-document'])
+    const gem = path.join(rubyPrefix, 'bin', 'gem')
-  }
+    await exec.exec(gem, ['install', 'bundler', '-v', `~> ${bundlerVersion}`, '--no-document'])
-}
-
-function getVirtualEnvironmentName() {
-  const platform = os.platform()
-  if (platform === 'linux') {
-    return `ubuntu-${findUbuntuVersion()}`
-  } else if (platform === 'darwin') {
-    return 'macos-latest'
-  } else if (platform === 'win32') {
-    return 'windows-latest'
-  } else {
-    throw new Error(`Unknown platform ${platform}`)
-  }
-}
-
-function findUbuntuVersion() {
-  const lsb_release = fs.readFileSync('/etc/lsb-release', 'utf8')
-  const match = lsb_release.match(/^DISTRIB_RELEASE=(\d+\.\d+)$/m)
-  if (match) {
-    return match[1]
-  } else {
-    throw new Error('Could not find Ubuntu version')
   }
 }
 

ruby-builder-versions.js

@@ -7,7 +7,7 @@ export function getVersions(platform) {
       "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",
       "2.6.0", "2.6.1", "2.6.2", "2.6.3", "2.6.4", "2.6.5", "2.6.6",
       "2.7.0", "2.7.1",
-      "head"
+      "head", "debug",
     ],
     "jruby": [
       "9.1.17.0",
@@ -16,7 +16,7 @@ export function getVersions(platform) {
     ],
     "truffleruby": [
       "19.3.0", "19.3.1",
-      "20.0.0",
+      "20.0.0", "20.1.0",
       "head"
     ]
   }

ruby-builder.js

@@ -3,6 +3,7 @@ const path = require('path')
 const exec = require('@actions/exec')
 const io = require('@actions/io')
 const tc = require('@actions/tool-cache')
+const common = require('./common')
 const rubyBuilderVersions = require('./ruby-builder-versions')
 
 const builderReleaseTag = 'enable-shared'
@@ -12,10 +13,10 @@ export function getAvailableVersions(platform, engine) {
   return rubyBuilderVersions.getVersions(platform)[engine]
 }
 
-export async function install(platform, ruby) {
+export async function install(platform, engine, version) {
-  const rubyPrefix = await downloadAndExtract(platform, ruby)
+  const rubyPrefix = await downloadAndExtract(platform, engine, version)
   let newPathEntries
-  if (ruby.startsWith('rubinius')) {
+  if (engine === 'rubinius') {
     newPathEntries = [path.join(rubyPrefix, 'bin'), path.join(rubyPrefix, 'gems', 'bin')]
   } else {
     newPathEntries = [path.join(rubyPrefix, 'bin')]
@@ -23,29 +24,31 @@ export async function install(platform, ruby) {
   return [rubyPrefix, newPathEntries]
 }
 
-async function downloadAndExtract(platform, ruby) {
+async function downloadAndExtract(platform, engine, version) {
   const rubiesDir = path.join(os.homedir(), '.rubies')
   await io.mkdirP(rubiesDir)
 
-  const url = await getDownloadURL(platform, ruby)
+  const downloadPath = await common.measure('Downloading Ruby', async () => {
-  console.log(url)
+    const url = getDownloadURL(platform, engine, version)
+    console.log(url)
+    return await tc.downloadTool(url)
+  })
 
-  const downloadPath = await tc.downloadTool(url)
   const tar = platform.startsWith('windows') ? 'C:\\Windows\\system32\\tar.exe' : 'tar'
-  await exec.exec(tar, [ '-xz', '-C', rubiesDir, '-f',  downloadPath ])
+  await common.measure('Extracting Ruby', async () =>
+    exec.exec(tar, [ '-xz', '-C', rubiesDir, '-f',  downloadPath ]))
 
-  return path.join(rubiesDir, ruby)
+  return path.join(rubiesDir, `${engine}-${version}`)
 }
 
-function getDownloadURL(platform, ruby) {
+function getDownloadURL(platform, engine, version) {
-  if (ruby.endsWith('-head')) {
+  if (common.isHeadVersion(version)) {
-    return getLatestHeadBuildURL(platform, ruby)
+    return getLatestHeadBuildURL(platform, engine, version)
   } else {
-    return `${releasesURL}/download/${builderReleaseTag}/${ruby}-${platform}.tar.gz`
+    return `${releasesURL}/download/${builderReleaseTag}/${engine}-${version}-${platform}.tar.gz`
   }
 }
 
-function getLatestHeadBuildURL(platform, ruby) {
+function getLatestHeadBuildURL(platform, engine, version) {
-  const engine = ruby.split('-')[0]
+  return `https://github.com/ruby/${engine}-dev-builder/releases/latest/download/${engine}-${version}-${platform}.tar.gz`
-  return `https://github.com/ruby/${engine}-dev-builder/releases/latest/download/${engine}-head-${platform}.tar.gz`
 }

versions-strings-for-builder.rb

@@ -0,0 +1,15 @@
+hash = File.read('ruby-builder-versions.js')[/\bversions = {[^}]+}/]
+versions = eval hash
+
+by_minor = versions[:ruby].group_by { |v| v[/^\d\.\d/] }
+
+p by_minor['2.2']
+p by_minor['2.3']
+
+(4..7).each do |minor|
+  p by_minor["2.#{minor}"].map { |v| "ruby-#{v}" }
+end
+
+p (versions[:jruby] - %w[head]).map { |v| "jruby-#{v}" }
+
+p (versions[:truffleruby] - %w[head]).map { |v| "truffleruby-#{v}" }

windows.js

@@ -7,6 +7,7 @@ const cp = require('child_process')
 const core = require('@actions/core')
 const exec = require('@actions/exec')
 const tc = require('@actions/tool-cache')
+const common = require('./common')
 const rubyInstallerVersions = require('./windows-versions').versions
 
 // Extract to SSD, see https://github.com/ruby/setup-ruby/pull/14
@@ -32,18 +33,21 @@ export function getAvailableVersions(platform, engine) {
   }
 }
 
-export async function install(platform, ruby) {
+export async function install(platform, engine, version) {
-  const version = ruby.split('-', 2)[1]
   const url = rubyInstallerVersions[version]
-  console.log(url)
 
   if (!url.endsWith('.7z')) {
-    throw new Error('URL should end in .7z')
+    throw new Error(`URL should end in .7z: ${url}`)
   }
   const base = url.slice(url.lastIndexOf('/') + 1, url.length - '.7z'.length)
 
-  const downloadPath = await tc.downloadTool(url)
+  const downloadPath = await common.measure('Downloading Ruby', async () => {
-  await exec.exec('7z', ['x', downloadPath, `-xr!${base}\\share\\doc`, `-o${drive}:\\`], { silent: true })
+    console.log(url)
+    return await tc.downloadTool(url)
+  })
+
+  await common.measure('Extracting Ruby', async () =>
+    exec.exec('7z', ['x', downloadPath, `-xr!${base}\\share\\doc`, `-o${drive}:\\`], { silent: true }))
   const rubyPrefix = `${drive}:\\${base}`
 
   let toolchainPaths = (version === 'mswin') ?
@@ -62,7 +66,8 @@ async function symLinkToEmbeddedMSYS2() {
   }
   const latestVersion = toolCacheVersions.slice(-1)[0]
   const hostedRuby = tc.find('Ruby', latestVersion)
-  await exec.exec(`cmd /c mklink /D ${msys2} ${hostedRuby}\\msys64`)
+  await common.measure('Linking MSYS2', async () =>
+    exec.exec(`cmd /c mklink /D ${msys2} ${hostedRuby}\\msys64`))
 }
 
 async function setupMingw(version) {
@@ -70,7 +75,8 @@ async function setupMingw(version) {
 
   if (version.startsWith('2.2') || version.startsWith('2.3')) {
     core.exportVariable('SSL_CERT_FILE', certFile)
-    await installMSYS(version)
+    await common.measure('Installing MSYS1', async () =>
+      installMSYS(version))
 
     return msysPathEntries
   } else {
@@ -117,7 +123,10 @@ async function setupMSWin() {
     await symLinkToEmbeddedMSYS2()
   }
 
-  return [...addVCVARSEnv(), ...msys2PathEntries]
+  const VCPathEntries = await common.measure('Setting up MSVC environment', async () =>
+    addVCVARSEnv())
+
+  return [...VCPathEntries, ...msys2PathEntries]
 }
 
 /* Sets MSVC environment for use in Actions

yarn.lock

@@ -8,16 +8,16 @@
   integrity sha512-Wp4xnyokakM45Uuj4WLUxdsa8fJjKVl1fDTsPbTEcTcuu0Nb26IPQbOtjmnfaCPGcaoPOOqId8H9NapZ8gii4w==
 
 "@actions/exec@^1.0.0", "@actions/exec@^1.0.3":
-  version "1.0.3"
+  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/@actions/exec/-/exec-1.0.3.tgz#b967f8700d6ff011dcc91243b58bafc1bb9ab95f"
+  resolved "https://registry.yarnpkg.com/@actions/exec/-/exec-1.0.4.tgz#99d75310e62e59fc37d2ee6dcff6d4bffadd3a5d"
-  integrity sha512-TogJGnueOmM7ntCi0ASTUj4LapRRtDfj57Ja4IhPmg2fls28uVOPbAn8N+JifaOumN2UG3oEO/Ixek2A4NcYSA==
+  integrity sha512-4DPChWow9yc9W3WqEbUj8Nr86xkpyE29ZzWjXucHItclLbEW6jr80Zx4nqv18QL6KK65+cifiQZXvnqgTV6oHw==
   dependencies:
     "@actions/io" "^1.0.1"
 
-"@actions/http-client@^1.0.3":
+"@actions/http-client@^1.0.8":
-  version "1.0.6"
+  version "1.0.8"
-  resolved "https://registry.yarnpkg.com/@actions/http-client/-/http-client-1.0.6.tgz#6f9267ca50e1d74d8581f4a894a943cd4c97b49a"
+  resolved "https://registry.yarnpkg.com/@actions/http-client/-/http-client-1.0.8.tgz#8bd76e8eca89dc8bcf619aa128eba85f7a39af45"
-  integrity sha512-LGmio4w98UyGX33b/W6V6Nx/sQHRXZ859YlMkn36wPsXPB82u8xTVlA/Dq2DXrm6lEq9RVmisRJa1c+HETAIJA==
+  integrity sha512-G4JjJ6f9Hb3Zvejj+ewLLKLf99ZC+9v+yCxoYf9vSyH+WkzPLB2LuUtRMGNkooMqdugGBFStIKXOuvH1W+EctA==
   dependencies:
     tunnel "0.0.6"
 
@@ -27,13 +27,13 @@
   integrity sha512-J8KuFqVPr3p6U8W93DOXlXW6zFvrQAJANdS+vw0YhusLIq+bszW8zmK2Fh1C2kDPX8FMvwIl1OUcFgvJoXLbAg==
 
 "@actions/tool-cache@^1.3.1":
-  version "1.3.3"
+  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/@actions/tool-cache/-/tool-cache-1.3.3.tgz#34cf87a0436a2178207a644932114a236194b0fd"
+  resolved "https://registry.yarnpkg.com/@actions/tool-cache/-/tool-cache-1.3.4.tgz#2d2e3d109696edc7c12b0bd47ab6f66446428246"
-  integrity sha512-AFVyTLcIxusDVI1gMhbZW8m/On7YNJG+xYaxorV+qic+f7lO7h37aT2mfzxqAq7mwHxtP1YlVFNrXe9QDf/bPg==
+  integrity sha512-1Pfz4vDbKzqsWOi5CdNl377cwBNfsNrV3Wy8i94mw+49T+6JVqAH3gtFj/Woe93zyvlvzqM0rmQlPh5+jvKLag==
   dependencies:
     "@actions/core" "^1.2.0"
     "@actions/exec" "^1.0.0"
-    "@actions/http-client" "^1.0.3"
+    "@actions/http-client" "^1.0.8"
     "@actions/io" "^1.0.1"
     semver "^6.1.0"
     uuid "^3.3.2"