From 37e56b1ac147f8edf5dbcb4692f40ec40d7f19aa Mon Sep 17 00:00:00 2001
From: Kazuki Nishikawa <kz.nishikawa@gmail.com>
Date: Fri, 1 Aug 2025 11:00:57 +0900
Subject: [PATCH 1/4] Add CI github actions workflow

---
 .github/workflows/ci.yml | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..6c16584
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - stable
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version: ['3.4', '3.3', '3.2', '3.1', '3.0', '2.7', '2.6', '2.5', '2.4', '2.3']
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby_version }}
+        bundler-cache: true
+
+    - name: Run test
+      run: |
+        bundle exec rake

From 44a074a506ff1851d75c6470b33fa6ec24a1ac11 Mon Sep 17 00:00:00 2001
From: Kazuki Nishikawa <kz.nishikawa@gmail.com>
Date: Fri, 1 Aug 2025 11:05:50 +0900
Subject: [PATCH 2/4] Move development dependency from gemspec to Gemfile

---
 Gemfile         |  4 ++++
 Gemfile.lock    | 24 ------------------------
 ruby-xz.gemspec |  4 ----
 3 files changed, 4 insertions(+), 28 deletions(-)
 delete mode 100644 Gemfile.lock

diff --git a/Gemfile b/Gemfile
index 7f4f5e9..ec3e190 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,3 +3,7 @@
 source 'https://rubygems.org'
 
 gemspec
+
+gem 'minitar', '~> 0.6'
+gem 'minitest', '~> 5.14'
+gem 'rake', '~> 13.0'
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index c8bab77..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,24 +0,0 @@
-PATH
-  remote: .
-  specs:
-    ruby-xz (1.0.4.pre)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    minitar (0.9)
-    minitest (5.15.0)
-    rake (13.0.6)
-
-PLATFORMS
-  x86_64-darwin-21
-  x86_64-linux
-
-DEPENDENCIES
-  minitar (~> 0.6)
-  minitest (~> 5.14)
-  rake (~> 13.0)
-  ruby-xz!
-
-BUNDLED WITH
-   2.3.7
diff --git a/ruby-xz.gemspec b/ruby-xz.gemspec
index 48991f4..21aa9c7 100644
--- a/ruby-xz.gemspec
+++ b/ruby-xz.gemspec
@@ -59,8 +59,4 @@ GEMSPEC = Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 2.3.0'
   spec.platform              = Gem::Platform::RUBY
   spec.post_install_message  = 'Version 1.0.0 of ruby-xz breaks the API. Read HISTORY.rdoc and adapt your code to the new API.'
-
-  spec.add_development_dependency 'minitar', '~> 0.6'
-  spec.add_development_dependency 'minitest', '~> 5.14'
-  spec.add_development_dependency 'rake', '~> 13.0'
 end

From 2864f3ebd4dd96fbfd3b72481e4ea835bd7f697e Mon Sep 17 00:00:00 2001
From: Kazuki Nishikawa <kz.nishikawa@gmail.com>
Date: Fri, 1 Aug 2025 11:22:56 +0900
Subject: [PATCH 3/4] Restrict minitest version for old ruby versions

minitest 5.25.5 drops ruby 2.6 support
minitest 5.16.0 drops ruby 2.2-2.5 support

ref: https://github.com/minitest/minitest/blob/master/History.rdoc
---
 Gemfile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Gemfile b/Gemfile
index ec3e190..8a16dec 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,5 +5,10 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'minitar', '~> 0.6'
-gem 'minitest', '~> 5.14'
 gem 'rake', '~> 13.0'
+
+if RUBY_VERSION >= '2.7.0'
+  gem 'minitest', '~> 5.25.5'
+else
+  gem 'minitest', '< 5.16.0'
+end

From 0d8abb7e5ea92e774528bccdc823661f51fba0de Mon Sep 17 00:00:00 2001
From: Kazuki Nishikawa <kz.nishikawa@gmail.com>
Date: Fri, 1 Aug 2025 11:39:07 +0900
Subject: [PATCH 4/4] update rubygem

---
 .github/workflows/ci.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6c16584..d109385 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,6 +23,11 @@ jobs:
         ruby-version: ${{ matrix.ruby_version }}
         bundler-cache: true
 
+    - name: Update rubygem
+      if: ${{ matrix.ruby_version < '2.7' }}
+      run: |
+        gem update --system 3.2.3
+
     - name: Run test
       run: |
         bundle exec rake