Setting up Travis CI for Ruby app

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Changes in App

• add /.travis.yml

  example file

  language: ruby
  sudo: required
  dist: trusty
  
  addons:
  chrome: stable
  cache:
  bundler: true
  
  before_install:
  - gem update bundler
  - gem install bundler
  - google-chrome-stable --headless --disable-gpu --no-sandbox --remote-debugging-port=9222 http://localhost &
  
  rvm:
  - 2.5.5
  - 2.6.3
  
  env:
  global:
  - NOKOGIRI_USE_SYSTEM_LIBRARIES=true
  # Travis should check every minor version in a range of supported versions, because
  # rails does not follow sem-ver conventions, see http://guides.rubyonrails.org/maintenance_policy.html
  # It should be sufficient to test only the latest of the patch versions for a minor version, they
  # should be compatible across patch versions (only bug fixes are released in patch versions).
  matrix:
  - "RAILS_VERSION=5.2.4"
  
  services:
  - redis-server
  before_script:
  - jdk_switcher use oraclejdk8
  
  

• add /tasks/_MY_APP_NAME_-dev.rake (e.g. exhibits-dev.rake)

  example file

  # frozen_string_literal: true
  require 'bundler/gem_tasks'
  require 'rspec/core/rake_task'
  require 'rubocop/rake_task'
  
  RSpec::Core::RakeTask.new(:spec)
  
  desc 'Run style checker'
  RuboCop::RakeTask.new(:rubocop) do |task|
  task.requires << 'rubocop-rspec'
  task.fail_on_error = true
  end
  
  # desc "Run continuous integration build"
  # task ci: ['engine_cart:generate'] do
  # Rake::Task['spec'].invoke
  # end
  
  desc 'Run continuous integration build'
  task ci: ['rubocop', 'spec']
  
  task default: :spec
  
  

Changes in Github

Changes in Travis

Testing that it all works