common rails rake tasks

.cane

--no-doc
--style-measure 80
--abc-max 9
--abc-glob {rakefile,Gemfile,**/*.{rb,rake,example}}
--style-glob {rakefile,Gemfile,**/*.{rb,rake,example}}

--style-exclude db/schema.rb
--style-exclude config/initializers/secret_token.rb

--abc-exclude Class#method

cane.rake

if ['development', 'test', nil].include?(ENV['RAILS_ENV']) && defined?(Cane)
  require 'cane/rake_task'

  namespace :cane do
    desc ''
    Cane::RakeTask.new(:quality) do |cane|
      cane.canefile = '.cane'
    end

    desc 'Check abc metrics with cane'
    Cane::RakeTask.new(:warn) do |cane|
      cane.canefile = '.cane'
      cane.abc_max  = 7
      cane.no_doc   = true
      cane.no_style = true
    end

    desc 'Check code quality metrics with cane for all files'
    Cane::RakeTask.new(:all) do |cane|
      cane.canefile = '.cane'
      cane.style_exclude = []
      cane.abc_exclude = []
    end
  end

  desc 'Run cane to check quality metrics'
  task :cane => 'cane:quality'
end

checksum.rake

desc 'Generate a checksum for the current gem file'
task :checksum do |task|
  require 'digest/sha2'
  root = File.dirname(__FILE__)

  gem_file = Dir[File.join(root, '..', '..', '*.gem')].first
  checksum = Digest::SHA512.new.hexdigest(File.read(gem_file))
  checksum_file = File.basename(gem_file)
  checksum_path = "checksum/#{checksum_file}.sha512"

  puts checksum

  File.open(checksum_path, 'w') do |file|
    file.write checksum
  end
end

jslint.rake

module MyApp::RakeSupport end

class MyApp::RakeSupport::Jslint
  class << self
    def run
      puts "Running jslint for #{all_items.join(', ')}."

      all_items.each do |item|
        system command_for(item)
        @exit_code = $?.to_i
        break unless @exit_code == 0
      end

      exit_gracefully
    end

    private

    def command
      @command ||=
        'jslint --indent 2 --maxlen 80 --browser --sloppy --maxerr 5'
    end

    def command_for(item)
      if File.directory?(item)
        "find #{item} -iname '*.js' | xargs #{command}"
      else
        "#{command} #{item}"
      end
    end

    def all_items
      @all ||= js_directories + js_files
    end

    def js_directories
      @dirs ||=
        ['app/assets/javascripts'] +
        Dir['spec/javascripts/**'] -
        ['spec/javascripts/support']
    end

    def js_files
      @files ||= [
        'spec/javascripts/support/karma_config.js',
      ]
    end

    def exit_gracefully
      puts
      exit(@exit_code.to_i) unless @exit_code == 0
    end
  end
end

desc 'Run jslint'
task(:jslint) { MyApp::RakeSupport::Jslint.run }

karma.rake

module MyApp::RakeSupport end

class MyApp::RakeSupport::Karma
  class << self
    def run
      system command
      @exit_code = $?.to_i
      exit_gracefully
    end

    private

    def command
      "karma start #{config} --single-run"
    end

    def config
      'spec/javascripts/support/karma_config.js'
    end

    def exit_gracefully
      puts
      exit(@exit_code.to_i) unless @exit_code == 0
    end
  end
end

desc 'Run javascript specs'
task(:karma) { MyApp::RakeSupport::Karma.run }

karma_config.js

module.exports = function (config) {
  config.set({
    // base path, that will be used to resolve files and exclude
    basePath: '../../..',

    // frameworks to use
    frameworks: ['jasmine'],

    // list of files / patterns to load in the browser
    files: [
      'vendor/assets/javascripts/**/*.js',
      'app/assets/javascripts/**/*.js',
      'spec/javascripts/support/*.js',
      'spec/javascripts/**/*_spec.js',
    ],

    // Default is {'**/*.coffee': 'coffee'}
    preprocessors: {},

    // list of files to exclude
    exclude: [
      'spec/javascripts/support/karma_config.js',
    ],

    // test results reporter to use
    // possible values: 'dots', 'progress', 'junit', 'growl', 'coverage'
    reporters: ['dots'],

    // Start these browsers, currently available:
    // - Chrome
    // - ChromeCanary
    // - Firefox
    // - Opera
    // - Safari (only Mac)
    // - PhantomJS
    // - IE (only Windows)
    browsers: ['PhantomJS'],
  });
};

package.json

{
  "devDependencies": {
    "jslint": "~0.2.5",
    "karma": "~0.10.8"
  }
}

Rakefile

#!/usr/bin/env rake
# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

require File.expand_path('../config/application', __FILE__)

MyApp::Application.load_tasks

task :default => []
Rake::Task[:default].clear_prerequisites

task :default => [:cane, 'spec:all']

rspec.rake

if ['development', 'test', nil].include?(ENV['RAILS_ENV'])
  require 'rspec/core/rake_task'

  namespace :spec do
    desc 'Run all unit specs'
    RSpec::Core::RakeTask.new :unit do |task|
      task.pattern = Dir['spec/**/*_spec.rb'] - Dir['spec/features/**/*_spec.rb']
    end

    desc 'Run all specs'
    task :all => ['spec:unit', 'spec:features']
  end
end