Extract utility methods to common.js

common.js

@@ -0,0 +1,25 @@
+const os = require('os')
+const fs = require('fs')
+
+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

@@ -961,10 +961,11 @@ 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)
 
 async function run() {
   try {
-    const platform = getVirtualEnvironmentName()
+    const platform = common.getVirtualEnvironmentName()
     const [engine, version] = parseRubyEngineAndVersion(core.getInput('ruby-version'))
 
     let installer
@@ -1129,29 +1130,6 @@ function isHeadVersion(rubyVersion) {
   return rubyVersion === 'head' || 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')
-  }
-}
-
 if (__filename.endsWith('index.js')) { run() }
 
 
@@ -1497,6 +1475,41 @@ 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__, "getVirtualEnvironmentName", function() { return getVirtualEnvironmentName; });
+const os = __webpack_require__(87)
+const fs = __webpack_require__(747)
+
+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:

index.js

@@ -3,10 +3,11 @@ const fs = require('fs')
 const path = require('path')
 const core = require('@actions/core')
 const exec = require('@actions/exec')
+const common = require('./common')
 
 export async function run() {
   try {
-    const platform = getVirtualEnvironmentName()
+    const platform = common.getVirtualEnvironmentName()
     const [engine, version] = parseRubyEngineAndVersion(core.getInput('ruby-version'))
 
     let installer
@@ -171,27 +172,4 @@ function isHeadVersion(rubyVersion) {
   return rubyVersion === 'head' || 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')
-  }
-}
-
 if (__filename.endsWith('index.js')) { run() }