Add ruby-3.1.2

If passed `bundler: 2.2`, setup-ruby would install bundler 2.3, because
it would generate a constraint that looks like `~> 2.2`. This
unexpectedly installs the latest of the 2.x series, but the expectation
is that it would install the latest of the 2.2.x series.

Fixes #304

.github/workflows/test.yml

@@ -145,6 +145,28 @@ jobs:
         rubygems: 3.2.3
     - run: gem --version | grep -F "3.3.3"
 
+  testMajorBundlerVersion:
+    name: "Test with a major Bundler version"
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ./
+      with:
+        ruby-version: 2.6
+        bundler: 2
+    - run: bundle --version | grep -P "Bundler version 2\.\d+\.\d+"
+
+  testMinorBundlerVersion:
+    name: "Test with a minor Bundler version"
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ./
+      with:
+        ruby-version: 2.6
+        bundler: 2.2
+    - run: bundle --version | grep -P "Bundler version 2\.2\.\d+"
+
   testExactBundlerVersion:
     name: "Test with an exact Bundler version"
     runs-on: ubuntu-latest

README.md

@@ -14,7 +14,7 @@ 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 3.1.1, head, debug, mingw, mswin |
+| `ruby` | 1.9.3, 2.0.0, 2.1.9, 2.2, all versions from 2.3.0 until 3.1.2, head, debug, mingw, mswin |
 | `jruby` | 9.1.17.0 - 9.3.4.0, head |
 | `truffleruby` | 19.3.0 - 22.0.0, head |
 | `truffleruby+graalvm` | 21.2.0 - 22.0.0, head |

action.yml

@@ -18,7 +18,7 @@ inputs:
       Defaults to 'default'.
   bundler:
     description: |
-      The version of Bundler to install. Either 'none', 'latest', 'Gemfile.lock', or a version number (e.g., 1, 2, 2.1.4).
+      The version of Bundler to install. Either 'none', 'latest', 'Gemfile.lock', or a version number (e.g., 1, 2, 2.1, 2.1.4).
       For 'Gemfile.lock', the version is determined based on the BUNDLED WITH section from the file Gemfile.lock, $BUNDLE_GEMFILE.lock or gems.locked.
       Defaults to 'Gemfile.lock' if the file exists and 'latest' otherwise.
     required: false

bundler.js

@@ -65,8 +65,8 @@ export async function installBundler(bundlerVersionInput, lockFile, platform, ru
     bundlerVersion = '2'
   }
 
-  if (/^\d+/.test(bundlerVersion)) {
-    // OK
+  if (/^\d+(?:\.\d+){0,2}$/.test(bundlerVersion)) {
+    // OK - input is a 1, 2, or 3 part version number
   } else {
     throw new Error(`Cannot parse bundler input: ${bundlerVersion}`)
   }
@@ -95,9 +95,12 @@ export async function installBundler(bundlerVersionInput, lockFile, platform, ru
     console.log(`Using Bundler 1 shipped with ${engine}-${rubyVersion}`)
   } else {
     const gem = path.join(rubyPrefix, 'bin', 'gem')
-    const bundlerVersionConstraint = /^\d+\.\d+\.\d+/.test(bundlerVersion) ? bundlerVersion : `~> ${bundlerVersion}`
     // Workaround for https://github.com/rubygems/rubygems/issues/5245
     const force = (platform.startsWith('windows-') && engine === 'ruby' && floatVersion >= 3.1) ? ['--force'] : []
+
+    const versionParts = [...bundlerVersion.matchAll(/\d+/g)].length
+    const bundlerVersionConstraint = versionParts === 3 ? bundlerVersion : `~> ${bundlerVersion}.0`
+
     await exec.exec(gem, ['install', 'bundler', ...force, '-v', bundlerVersionConstraint])
   }
 

dist/index.js

@@ -79,8 +79,8 @@ async function installBundler(bundlerVersionInput, lockFile, platform, rubyPrefi
     bundlerVersion = '2'
   }
 
-  if (/^\d+/.test(bundlerVersion)) {
-    // OK
+  if (/^\d+(?:\.\d+){0,2}$/.test(bundlerVersion)) {
+    // OK - input is a 1, 2, or 3 part version number
   } else {
     throw new Error(`Cannot parse bundler input: ${bundlerVersion}`)
   }
@@ -109,9 +109,12 @@ async function installBundler(bundlerVersionInput, lockFile, platform, rubyPrefi
     console.log(`Using Bundler 1 shipped with ${engine}-${rubyVersion}`)
   } else {
     const gem = path.join(rubyPrefix, 'bin', 'gem')
-    const bundlerVersionConstraint = /^\d+\.\d+\.\d+/.test(bundlerVersion) ? bundlerVersion : `~> ${bundlerVersion}`
     // Workaround for https://github.com/rubygems/rubygems/issues/5245
     const force = (platform.startsWith('windows-') && engine === 'ruby' && floatVersion >= 3.1) ? ['--force'] : []
+
+    const versionParts = [...bundlerVersion.matchAll(/\d+/g)].length
+    const bundlerVersionConstraint = versionParts === 3 ? bundlerVersion : `~> ${bundlerVersion}.0`
+
     await exec.exec(gem, ['install', 'bundler', ...force, '-v', bundlerVersionConstraint])
   }
 
@@ -60559,7 +60562,7 @@ module.exports = JSON.parse('[[[0,44],"disallowed_STD3_valid"],[[45,46],"valid"]
 /***/ ((module) => {
 
 "use strict";
-module.exports = JSON.parse('{"ruby":["1.9.3-p551","2.0.0-p648","2.1.9","2.2.10","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.9","2.4.10","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","2.7.0","2.7.1","2.7.2","2.7.3","2.7.4","2.7.5","3.0.0-preview1","3.0.0-preview2","3.0.0-rc1","3.0.0","3.0.1","3.0.2","3.0.3","3.1.0-preview1","3.1.0","3.1.1","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","9.3.0.0","9.3.1.0","9.3.2.0","9.3.3.0","9.3.4.0","head"],"truffleruby":["19.3.0","19.3.1","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","head"],"truffleruby+graalvm":["21.2.0","21.3.0","22.0.0.2","head"]}');
+module.exports = JSON.parse('{"ruby":["1.9.3-p551","2.0.0-p648","2.1.9","2.2.10","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.9","2.4.10","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","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","3.1.0-preview1","3.1.0","3.1.1","3.1.2","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","9.3.0.0","9.3.1.0","9.3.2.0","9.3.3.0","9.3.4.0","head"],"truffleruby":["19.3.0","19.3.1","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","head"],"truffleruby+graalvm":["21.2.0","21.3.0","22.0.0.2","head"]}');
 
 /***/ }),
 

ruby-builder-versions.json

@@ -7,10 +7,10 @@
     "2.3.0", "2.3.1", "2.3.2", "2.3.3", "2.3.4", "2.3.5", "2.3.6", "2.3.7", "2.3.8",
     "2.4.0", "2.4.1", "2.4.2", "2.4.3", "2.4.4", "2.4.5", "2.4.6", "2.4.7", "2.4.9", "2.4.10",
     "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",
-    "2.7.0", "2.7.1", "2.7.2", "2.7.3", "2.7.4", "2.7.5",
-    "3.0.0-preview1", "3.0.0-preview2", "3.0.0-rc1", "3.0.0", "3.0.1", "3.0.2", "3.0.3",
-    "3.1.0-preview1", "3.1.0", "3.1.1",
+    "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",
+    "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",
+    "3.1.0-preview1", "3.1.0", "3.1.1", "3.1.2",
     "head", "debug"
   ],
   "jruby": [