From ba9e71c195cadabb5051b7f88255085a846ee77e Mon Sep 17 00:00:00 2001
From: Jason Frey <fryguy9@gmail.com>
Date: Thu, 24 Jul 2025 16:32:05 -0400
Subject: [PATCH 1/2] Add printing of the lockfile after installation

Closes #783
---
 .github/workflows/test.yml | 12 ++++++++++++
 dist/index.js              |  5 +++++
 index.js                   |  5 +++++
 3 files changed, 22 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b07c79402..d9371a319 100644
--- a/.github/workflows/test.yml
+++ b/.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
diff --git a/dist/index.js b/dist/index.js
index d82a17d0d..3c983d4ae 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -85350,6 +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 (fs.existsSync(lockFile)) {
+      await core.group(`Print lockfile`, async () =>
+        await exec.exec('cat', [lockFile]))
+    }
   }
 
   core.setOutput('ruby-prefix', rubyPrefix)
diff --git a/index.js b/index.js
index 62e46feb9..d783d68fd 100644
--- a/index.js
+++ b/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 (fs.existsSync(lockFile)) {
+      await core.group(`Print lockfile`, async () =>
+        await exec.exec('cat', [lockFile]))
+    }
   }
 
   core.setOutput('ruby-prefix', rubyPrefix)

From bb6434c747fa7022e12fa1cae2a0951fcffcff26 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Sat, 26 Jul 2025 10:51:20 +0200
Subject: [PATCH 2/2] Add non-null check

---
 dist/index.js | 2 +-
 index.js      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dist/index.js b/dist/index.js
index 3c983d4ae..4df23eced 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -85351,7 +85351,7 @@ async function setupRuby(options = {}) {
     await common.time('bundle install', async () =>
       bundler.bundleInstall(gemfile, lockFile, platform, engine, version, bundlerVersion, inputs['cache-version']))
 
-    if (fs.existsSync(lockFile)) {
+    if (lockFile !== null && fs.existsSync(lockFile)) {
       await core.group(`Print lockfile`, async () =>
         await exec.exec('cat', [lockFile]))
     }
diff --git a/index.js b/index.js
index d783d68fd..2d29628d7 100644
--- a/index.js
+++ b/index.js
@@ -100,7 +100,7 @@ export async function setupRuby(options = {}) {
     await common.time('bundle install', async () =>
       bundler.bundleInstall(gemfile, lockFile, platform, engine, version, bundlerVersion, inputs['cache-version']))
 
-    if (fs.existsSync(lockFile)) {
+    if (lockFile !== null && fs.existsSync(lockFile)) {
       await core.group(`Print lockfile`, async () =>
         await exec.exec('cat', [lockFile]))
     }