Add github actions and drop Travis (#48)

* Add github actions and drop Travis

* Lock SimpleCov < 0.18

.github/workflows/ruby.yml

@@ -0,0 +1,31 @@
+name: build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+
+    runs-on: ${{ matrix.os }}-latest
+    strategy:
+      matrix:
+        os: [ubuntu, macos]
+        ruby-version: ['2.6', '2.7', head]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Run tests
+      run: bundle exec rake
+    - name: Publish code coverage
+      if: ${{ success() && runner.os == 'Linux' }}
+      uses: paambaati/[email protected]
+      env:
+        CC_TEST_REPORTER_ID: ${{ secrets.CC_TEST_REPORTER_ID }}

README.md

@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/david942j/rbelftools.svg?branch=master)](https://travis-ci.org/david942j/rbelftools)
+[![Build Status](https://github.com/david942j/rbelftools/workflows/build/badge.svg)](https://github.com/david942j/rbelftools/actions)
 [![Build Status](https://ci.appveyor.com/api/projects/status/sq5c4gli8ir95h6k?svg=true&retina=true)](https://ci.appveyor.com/project/david942j/rbelftools)
 [![Code Climate](https://codeclimate.com/github/david942j/rbelftools/badges/gpa.svg)](https://codeclimate.com/github/david942j/rbelftools)
 [![Issue Count](https://codeclimate.com/github/david942j/rbelftools/badges/issue_count.svg)](https://codeclimate.com/github/david942j/rbelftools)

appveyor.yml

@@ -2,10 +2,8 @@ version: 1.0.{build}-{branch}
 
 environment:
   matrix:
-    - RUBY_VERSION: '24'
-    - RUBY_VERSION: '24-x64'
-    - RUBY_VERSION: '25'
-    - RUBY_VERSION: '25-x64'
+    - RUBY_VERSION: '26'
+    - RUBY_VERSION: '26-x64'
 
 install:
   - set PATH=C:\Ruby%RUBY_VERSION%\bin;%PATH%

elftools.gemspec

@@ -27,6 +27,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'rspec', '~> 3.7'
   s.add_development_dependency 'rubocop', '~> 0.59'
-  s.add_development_dependency 'simplecov', '~> 0.17'
+  s.add_development_dependency 'simplecov', '~> 0.17', '< 0.18'
   s.add_development_dependency 'yard', '~> 0.9'
 end