Update CI set-up

We stopped using Travis CI some time ago, but never replaced it. Set
up GitHub actions for automated CI build and pushing new versions to
rubygems.

.github/workflows/publish.yml

@@ -0,0 +1,24 @@
+name: Publish Gem
+
+on:
+  release:
+    types:
+      - "created"
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Publish to RubyGems
+        run: |
+          mkdir -p $HOME/.gem
+          touch $HOME/.gem/credentials
+          chmod 0600 $HOME/.gem/credentials
+          printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+          gem build sinject.gemspec
+          gem push sinject-*.gem
+        env:
+          GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_AUTH_TOKEN}}"

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+name: CI
+
+on: [push]
+
+jobs:
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        # All the (nominally) supported Ruby versions
+        ruby: ['2.5', '2.6', '2.7', '3.0', '3.2', '3.3']
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true
+
+    - name: Run tests
+      run: bundle exec rspec
+
+    - name: Upload Coverage Report to CodeClimate
+      # No sense uploading coverage for each Ruby version tested
+      if: ${{matrix.ruby == '3.3'}}
+      uses: paambaati/codeclimate-action@v5
+      env:
+        CC_TEST_REPORTER_ID: ${{secrets.CC_TEST_REPORTER_ID}}

sinject.gemspec

@@ -22,5 +22,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler', '>= 1.11'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
-  spec.add_development_dependency 'simplecov', '~> 0.21.2'
+  spec.add_development_dependency 'simplecov'
+  spec.add_development_dependency 'simplecov_json_formatter'
 end

spec/spec_helper.rb

@@ -1,4 +1,8 @@
 require 'simplecov'
+require 'simplecov_json_formatter'
+
+SimpleCov.formatter = SimpleCov::Formatter::JSONFormatter
+
 SimpleCov.start do
   add_filter 'spec/'
 end
@@ -26,5 +30,4 @@
     # `true` in RSpec 4.
     mocks.verify_partial_doubles = true
   end
-
 end