Rakefile

#!/usr/bin/env rake
# encoding: utf-8

require 'bundler'
require 'bundler/gem_helper'
require 'rake/testtask'
require 'rubocop/rake_task'

Bundler::GemHelper.install_tasks name: 'train'

# Rubocop
desc 'Run Rubocop lint checks'
task :rubocop do
  RuboCop::RakeTask.new
end

# lint the project
desc 'Run robocop linter'
task lint: [:rubocop]

# run tests
task default: [:test, :lint]

Rake::TestTask.new do |t|
  t.libs << 'test/unit'
  t.pattern = 'test/unit/**/*_test.rb'
  t.warning = true
  t.verbose = true
  t.ruby_opts = ['--dev'] if defined?(JRUBY_VERSION)
end

namespace :test do
  task :docker do
    path = File.join(File.dirname(__FILE__), 'test', 'integration')
    sh('sh', '-c', "cd #{path} && ruby -I ../../lib docker_test.rb tests/*")
  end

  task :windows do
    Dir.glob('test/windows/*_test.rb').all? do |file|
      sh(Gem.ruby, '-w', '-I .\test\windows', file)
    end or fail 'Failures'
  end

  task :vm do
    concurrency = ENV['CONCURRENCY'] || 4
    path = File.join(File.dirname(__FILE__), 'test', 'integration')
    sh('sh', '-c', "cd #{path} && kitchen test -c #{concurrency}")
  end

  # Target required:
  #   rake "test:ssh[user@server]"
  #   sh -c cd /home/foobarbam/src/gems/train/test/integration \
  #     && target=user@server ruby -I ../../lib test_ssh.rb tests/*
  #   ...
  # Turn debug logging back on:
  #   debug=1 rake "test:ssh[user@server]"
  # Use a different ssh key:
  #   key_files=/home/foobarbam/.ssh/id_rsa2 rake "test:ssh[user@server]"
  # Run with a specific test:
  #   test=path_block_device_test.rb rake "test:ssh[user@server]"
  task :ssh, [:target] do |t, args|
    path = File.join(File.dirname(__FILE__), 'test', 'integration')
    key_files = ENV['key_files'] || File.join(ENV['HOME'], '.ssh', 'id_rsa')

    sh_cmd    =  "cd #{path} && target=#{args[:target]} key_files=#{key_files}"

    sh_cmd += " debug=#{ENV['debug']}" if ENV['debug']
    sh_cmd += ' ruby -I ../../lib test_ssh.rb tests/'
    sh_cmd += ENV['test'] || '*'

    sh('sh', '-c', sh_cmd)
  end
end

# Print the current version of this gem or update it.
#
# @param [Type] target the new version you want to set, or nil if you only want to show
def train_version(target = nil)
  path = 'lib/train/version.rb'
  require_relative path.sub(/.rb$/, '')

  nu_version = target.nil? ? '' : " -> #{target}"
  puts "Train: #{Train::VERSION}#{nu_version}"

  unless target.nil?
    raw = File.read(path)
    nu = raw.sub(/VERSION.*/, "VERSION = '#{target}'.freeze")
    File.write(path, nu)
    load(path)
  end
end

# Check if a command is available
#
# @param [Type] x the command you are interested in
# @param [Type] msg the message to display if the command is missing
def require_command(x, msg = nil)
  return if system("command -v #{x} || exit 1")
  msg ||= 'Please install it first!'
  puts "\033[31;1mCan't find command #{x.inspect}. #{msg}\033[0m"
  exit 1
end

# Check if a required environment variable has been set
#
# @param [String] x the variable you are interested in
# @param [String] msg the message you want to display if the variable is missing
def require_env(x, msg = nil)
  exists = `env | grep "^#{x}="`
  return unless exists.empty?
  puts "\033[31;1mCan't find environment variable #{x.inspect}. #{msg}\033[0m"
  exit 1
end

# Check the requirements for running an update of this repository.
def check_update_requirements
  require_command 'git'
  require_command 'github_changelog_generator', "\n"\
    "For more information on how to install it see:\n"\
    "  https://github.com/skywinder/github-changelog-generator\n"
  require_env 'CHANGELOG_GITHUB_TOKEN', "\n"\
    "Please configure this token to make sure you can run all commands\n"\
    "against GitHub.\n\n"\
    "See github_changelog_generator homepage for more information:\n"\
    "  https://github.com/skywinder/github-changelog-generator\n"
end

# Show the current version of this gem.
desc 'Show the version of this gem'
task :version do
  train_version
end

desc 'Generate the changelog'
task :changelog do
  require_relative 'lib/train/version'
  system "github_changelog_generator -u chef -p train --future-release #{Train::VERSION}"
end

# Update the version of this gem and create an updated
# changelog. It covers everything short of actually releasing
# the gem.
desc 'Bump the version of this gem'
task :bump_version, [:version] do |_, args|
  v = args[:version] || ENV['to']
  fail "You must specify a target version!  rake bump_version to=1.2.3" if v.empty?
  check_update_requirements
  train_version(v)
  Rake::Task['changelog'].invoke
end