Add GitHub Actions.

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+name: Test
+on: [push, pull_request]
+jobs:
+  build:
+    name: >-
+      ${{ matrix.os }} ruby ${{ matrix.ruby }} ${{ matrix.db }}
+    # Run all the tests on the new environment as much as possible.
+    # https://docs.github.com/en/free-pro-team@latest/actions/reference/specifications-for-github-hosted-runners
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-20.04 # focal
+        ruby:
+          - 2.7
+        db: ['']
+        include:
+          - {os: ubuntu-16.04, ruby: 2.4, db: mariadb10.0}
+      # On the fail-fast: true, it cancels all in-progress jobs
+      # if any matrix job fails unlike Travis fast_finish.
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+      # https://github.com/ruby/setup-ruby
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - if: matrix.db != ''
+        run: echo 'DB=${{ matrix.db }}' >> $GITHUB_ENV
+      - run: bash .travis_setup.sh
+      - run: bundle exec rake

.travis_setup.sh

@@ -2,6 +2,15 @@
 
 set -eux
 
+# Install system MySQL if DB is not set.
+if [[ -z ${DB-} ]]; then
+  sudo apt-get update -qq
+  sudo apt-get install -qq mysql-server-8.0 mysql-client-8.0
+  sudo service mysql restart
+  sudo service mysql status
+  mysql -u root -e "ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY ''"
+fi
+
 # Install MySQL 5.5 if DB=mysql55
 if [[ -n ${DB-} && x$DB =~ ^xmysql55 ]]; then
   sudo bash .travis_mysql55.sh
@@ -19,12 +28,12 @@ fi
 
 # Install MariaDB client headers after Travis CI fix for MariaDB 10.2 broke earlier 10.x
 if [[ -n ${DB-} && x$DB =~ ^xmariadb10.0 ]]; then
-  sudo apt-get install -y -o Dpkg::Options::='--force-confnew' libmariadbclient-dev
+  sudo apt-get install -y -o Dpkg::Options::='--force-confnew' mariadb-server mariadb-server-10.0 libmariadb-client-lgpl-dev
 fi
 
 # Install MariaDB client headers after Travis CI fix for MariaDB 10.2 broke earlier 10.x
 if [[ -n ${DB-} && x$DB =~ ^xmariadb10.1 ]]; then
-  sudo apt-get install -y -o Dpkg::Options::='--force-confnew' libmariadbclient-dev
+  sudo apt-get install -y -o Dpkg::Options::='--force-confnew' mariadb-server mariadb-server-10.1 libmariadbclient18
 fi
 
 # Install MariaDB 10.2 if DB=mariadb10.2

Gemfile

@@ -19,7 +19,7 @@ group :test do
   gem 'rubocop', '~> 0.50.0'
 end
 
-group :benchmarks do
+group :benchmarks, optional: true do
   gem 'activerecord', '>= 3.0'
   gem 'benchmark-ips'
   gem 'do_mysql'
@@ -28,7 +28,7 @@ group :benchmarks do
   gem 'sequel'
 end
 
-group :development do
+group :development, optional: true do
   gem 'pry'
   gem 'rake-compiler-dock', '~> 0.7.0'
 end