Migrate from Travis CI to GitHub Actions (#59)

* Migrate from Travis CI to GitHub Actions
* Move dev dependencies to Gemfile and fix rake incompat with Ruby 3.2+
* Override rubygems only for Ruby 1.9

5 files changed, 46 insertions, 29 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..92eb893
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,37 @@
+name: test on CI
+on:
+  push:
+    branches: [master]
+  pull_request:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby:
+          [
+            "1.9",
+            "2.0",
+            "2.1",
+            "2.2",
+            "2.3",
+            "2.4",
+            "2.5",
+            "2.6",
+            "2.7",
+            "3.0",
+            "3.1",
+            "3.2",
+            "head",
+            "jruby-head",
+          ]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          rubygems: ${{ matrix.ruby == '1.9' && '2.7.11' || 'default' }}
+          bundler-cache: true
+      - name: Run tests
+        run: bundle exec rake test
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 50ba6fd..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,22 +0,0 @@
----
-language: ruby
-cache: bundler
-branches:
-  only:
-    - master
-rvm:
-  - jruby-18mode
-  - jruby-19mode
-  - 1.9.3
-  - 2.0.0-p648 # macOS
-  - 2.1.10
-  - 2.2.10
-  - 2.3.8
-  - 2.4.5
-  - 2.5.3
-  - 2.6
-  - 2.7
-  - 3.0
-  - ruby-head
-  - jruby-head
-before_install: gem install bundler -v '~> 1.14' --conservative
diff --git a/Gemfile b/Gemfile
index 304caaa..4a77753 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,10 @@
 source "https://rubygems.org"
-
-# Specify your gem's dependencies in plist.gemspec
 gemspec
+
+if Gem::Requirement.new("< 2.2").satisfied_by?(Gem::Version.new(RUBY_VERSION))
+  gem "rake", "~> 11.3"
+else
+  gem "rake", "~> 13.0"
+end
+
+gem "test-unit", "~> 3.5"
diff --git a/README.rdoc b/README.rdoc
index e7dcd33..697d70c 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -1,7 +1,7 @@
 = All-purpose Property List manipulation library
 
 {<img src="https://badge.fury.io/rb/plist.svg" alt="Gem Version" />}[https://rubygems.org/gems/plist]
-{<img src="https://travis-ci.org/patsplat/plist.svg?branch=master" alt="Build Status" />}[https://travis-ci.org/patsplat/plist]
+{<img src="https://github.com/patsplat/plist/actions/workflows/ci.yml/badge.svg" alt="Build Status" />}[https://github.com/patsplat/plist/actions/workflows/ci.yml]
 
 Plist is a library to manipulate Property List files, also known as plists.  It can parse plist files into native Ruby data structures as well as generating new plist files from your Ruby objects.
 
diff --git a/plist.gemspec b/plist.gemspec
index 527c47f..4355726 100644
--- a/plist.gemspec
+++ b/plist.gemspec
@@ -21,8 +21,4 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.required_ruby_version = ">= 1.9.3"
-
-  spec.add_development_dependency "bundler", ">= 1.14"
-  spec.add_development_dependency "rake", "~> 10.5"
-  spec.add_development_dependency "test-unit", "~> 1.2"
 end