Add non-null check

Closes #783

.github/workflows/test.yml

@@ -240,6 +240,18 @@ jobs:
           ruby-version: '2.6'
       - run: ruby -v
 
+  testNoGemfileWithBundlerCache:
+    name: "Test with no Gemfile but with bundler-cache"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: rm Gemfile
+      - uses: ./
+        with:
+          ruby-version: '2.6'
+          bundler-cache: true
+      - run: ruby -v
+
   testLatestRubygemsVersion:
     name: "Test rubygems: latest on ${{ matrix.ruby }}"
     runs-on: ubuntu-latest

common.js

@@ -360,8 +360,7 @@ export function setupPath(newPathEntries) {
   const originalPath = process.env[envPath].split(path.delimiter)
   let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
 
-  core.startGroup(`Modifying ${envPath}`)
+  core.group(`Modifying ${envPath}`, async () => {
-
     // First remove the conflicting path entries
     if (cleanPath.length !== originalPath.length) {
       console.log(`Entries removed from ${envPath} to avoid conflicts with default Ruby:`)
@@ -377,7 +376,7 @@ export function setupPath(newPathEntries) {
     for (const entry of newPathEntries) {
       console.log(`  ${entry}`)
     }
-  core.endGroup()
+  })
 
   core.addPath(newPathEntries.join(path.delimiter))
 }

dist/index.js

@@ -677,8 +677,7 @@ function setupPath(newPathEntries) {
   const originalPath = process.env[envPath].split(path.delimiter)
   let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
 
-  core.startGroup(`Modifying ${envPath}`)
+  core.group(`Modifying ${envPath}`, async () => {
-
     // First remove the conflicting path entries
     if (cleanPath.length !== originalPath.length) {
       console.log(`Entries removed from ${envPath} to avoid conflicts with default Ruby:`)
@@ -694,7 +693,7 @@ function setupPath(newPathEntries) {
     for (const entry of newPathEntries) {
       console.log(`  ${entry}`)
     }
-  core.endGroup()
+  })
 
   core.addPath(newPathEntries.join(path.delimiter))
 }
@@ -85351,6 +85350,11 @@ async function setupRuby(options = {}) {
   if (inputs['bundler-cache'] === 'true') {
     await common.time('bundle install', async () =>
       bundler.bundleInstall(gemfile, lockFile, platform, engine, version, bundlerVersion, inputs['cache-version']))
+
+    if (lockFile !== null && fs.existsSync(lockFile)) {
+      await core.group(`Print lockfile`, async () =>
+        await exec.exec('cat', [lockFile]))
+    }
   }
 
   core.setOutput('ruby-prefix', rubyPrefix)

index.js

@@ -99,6 +99,11 @@ export async function setupRuby(options = {}) {
   if (inputs['bundler-cache'] === 'true') {
     await common.time('bundle install', async () =>
       bundler.bundleInstall(gemfile, lockFile, platform, engine, version, bundlerVersion, inputs['cache-version']))
+
+    if (lockFile !== null && fs.existsSync(lockFile)) {
+      await core.group(`Print lockfile`, async () =>
+        await exec.exec('cat', [lockFile]))
+    }
   }
 
   core.setOutput('ruby-prefix', rubyPrefix)