Add github actions

.github/workflows/test.yml

@@ -0,0 +1,56 @@
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+permissions:
+  contents: read
+  pull-requests: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check_test_execution_conditions:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - uses: xt0rted/block-autosquash-commits-action@v2
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+  rspec:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby:
+          - 3.0.6
+          - 3.1.4
+        mysql:
+          - 5.6
+          - 5.7
+    needs:
+      - check_test_execution_conditions
+    services:
+      mysql:
+        image: mysql:${{ matrix.mysql }}
+        env:
+          MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
+        options: >-
+          --health-cmd "mysqladmin ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - "3306:3306"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Run RSpec for ${{ matrix.mysql }}
+        run: bundle exec rake spec`echo ${{ matrix.mysql }} | awk -F. '{print $1"_"$2}'`
+        env:
+          MYSQL_HOST: 127.0.0.1

Dockerfile

@@ -0,0 +1,12 @@
+FROM ruby:3.1.6
+
+WORKDIR /usr/src/app
+
+RUN mkdir -p /usr/src/app/lib/gratan
+COPY Gemfile gratan.gemspec /usr/src/app/
+COPY lib/gratan/version.rb /usr/src/app/lib/gratan/
+RUN bundle install
+
+COPY . .
+
+ENTRYPOINT ["gratan"]

README.md

@@ -140,10 +140,13 @@ end
 ## Run tests
 
 ```sh
-bundle install
-docker-compose up -d
-bundle exec rake
-# MYSQL57=1 bundle exec rake
+docker compose build
+# for MySQL 5.6 and 5.7
+docker compose run --rm rake
+# for MySQL 5.6
+docker compose run --rm rake spec5_6
+# for MySQL 5.7
+docker compose run --rm rake spec5_7
 ```
 
 ## Similar tools

Rakefile

@@ -2,4 +2,18 @@ require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
 
 RSpec::Core::RakeTask.new('spec')
-task :default => :spec
+task :default => :spec_all
+
+suffixes = %w(5_6 5_7)
+task :spec_all => suffixes.map { |s| "spec#{s}" }
+
+suffixes.each do |suffix|
+  overwrite_host = ENV['MYSQL_HOST'].to_s.empty?
+  task "spec#{suffix}" do
+    if overwrite_host
+      ENV['MYSQL_HOST'] = "mysql#{suffix}"
+    end
+    ENV['MYSQL5_7'] = (suffix == '5_7' ? 1 : 0).to_s
+    Rake::Task['spec'].execute
+  end
+end

docker-compose.yml

@@ -1,12 +1,32 @@
-mysql56:
-  image: "mysql:5.6"
-  ports:
-    - "14406:3306"
-  environment:
-    MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
-mysql57:
-  image: "mysql:5.7"
-  ports:
-    - "14407:3306"
-  environment:
-    MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
+services:
+  mysql5_6:
+    image: "mysql:5.6"
+    environment:
+      MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
+    healthcheck:
+      test: ["CMD", "mysql", "-h", "localhost", "-u", "root", "--execute", "SHOW DATABASES;"]
+      start_period: 30s
+      timeout: 5s
+      interval: 5s
+      retries: 5
+  mysql5_7:
+    image: "mysql:5.7"
+    environment:
+      MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
+    healthcheck:
+      test: ["CMD", "mysql", "-h", "localhost", "-u", "root", "--execute", "SHOW DATABASES;"]
+      start_period: 30s
+      timeout: 5s
+      interval: 5s
+      retries: 5
+  rake:
+    build: .
+    depends_on:
+      mysql5_6:
+        condition: service_healthy
+      mysql5_7:
+        condition: service_healthy
+    entrypoint: ["rake"]
+    volumes:
+      - .:/usr/src/app
+    working_dir:  /usr/src/app

spec/spec_helper.rb

@@ -13,18 +13,34 @@
   end
 end
 
-def mysql57?
-  ENV['MYSQL57'] == '1'
+def env_empty?(str)
+  str.nil? || str.empty? || str == '0'
 end
 
-MYSQL_PORT = mysql57? ? 14407 : 14406
+def mysql5_7?
+  !env_empty?(ENV['MYSQL5_7'])
+end
+
+MYSQL_PORT = if ENV['MYSQL_PORT'].blank?
+               3306
+             else
+               ENV['MYSQL_PORT'].to_i
+             end
+
+MYSQL_HOST = if ENV['MYSQL_HOST'].blank?
+               '127.0.0.1'
+             else
+               ENV['MYSQL_HOST']
+             end
+
+MYSQL_USER = 'root'
 
 def mysql
   client = nil
   retval = nil
 
   begin
-    client = Mysql2::Client.new(host: '127.0.0.1', username: 'root', port: MYSQL_PORT)
+    client = Mysql2::Client.new(host: MYSQL_HOST, username: MYSQL_USER, port: MYSQL_PORT)
     retval = yield(client)
   ensure
     client.close if client
@@ -127,7 +143,7 @@ def show_grants
     end
   end
 
-  if mysql57?
+  if mysql5_7?
     grants.each do |grant|
     end
   end
@@ -141,14 +157,14 @@ def client(user_options = {})
   end
 
   options = {
-    host: '127.0.0.1',
-    username: 'root',
+    host: MYSQL_HOST,
+    username: MYSQL_USER,
     port: MYSQL_PORT,
     ignore_user: IGNORE_USER,
     logger: Logger.new('/dev/null'),
   }
 
-  if mysql57?
+  if mysql5_7?
     options.update(
       override_sql_mode: true,
       use_show_create_user: true,
@@ -189,7 +205,7 @@ def apply(cli = client)
 
 class Array
   def normalize
-    if mysql57?
+    if mysql5_7?
       self.map do |i|
         i.sub(/ IDENTIFIED BY PASSWORD '[^']+'/, '')
          .sub(/ REQUIRE \w+\b/, '')