Class: Suspenders::AppBuilder

Inherits:
Rails::AppBuilder
  • Object
show all
Extended by:
Forwardable
Includes:
Actions
Defined in:
lib/voyage/app_builder.rb,
lib/suspenders/app_builder.rb

Instance Method Summary collapse

Methods included from Actions

#action_mailer_host, #configure_application_file, #configure_environment, #replace_in_file

Instance Method Details

#accept_defaults ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 10

def accept_defaults
  if agree?('Would you like to accept all defaults? [slim, devise w/ first & last name, refills nav & footer] (Y/n)')
    @@accept_defaults = true
  else
    @@accept_defaults = false
  end
end

#add_admin_links_to_navigation ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 703

def add_admin_links_to_navigation
  return unless @@use_devise
  inject_into_file 'app/views/refills/_navigation.html.erb', after: '        <li class="nav-link"><a href="javascript:void(0)">Contact</a></li>'  do <<-RUBY

    <% if current_user && true_user.admin? %>
      <% if current_user != true_user %>
        <li class='nav-link'><%= link_to 'Stop Impersonating', stop_impersonating_admin_users_path %></li>
      <% else %>
        <li class="nav-link"><a href="/admin/users">Admin</a></li>
      <% end %>
    <% end %>

    <% if current_user %>
      <li class='nav-link'><%= link_to 'Sign Out', sign_out_path %></li>
    <% else %>
      <li class='nav-link'><%= link_to 'Sign In', sign_in_path %></li>
    <% end %>
    RUBY
  end
end

#add_admin_views_for_devise_resource(adding_first_and_last_name) ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 316

def add_admin_views_for_devise_resource(adding_first_and_last_name)
  config = { adding_first_and_last_name: adding_first_and_last_name }
  template '../templates/users_index.html.erb', 'app/views/admin/users/index.html.erb', config

  if @@use_slim
    inside('lib') do # arbitrary, run in context of newly generated app
      run "erb2slim '../app/views/users' '../app/views/users'"
      run "erb2slim -d '../app/views/users'"

      run "erb2slim '../app/views/admin/users' '../app/views/admin/users'"
      run "erb2slim -d '../app/views/admin/users'"
    end
  end

  template '../templates/admin_users_controller.rb', 'app/controllers/admin/users_controller.rb'
  template '../templates/admin_controller.rb', 'app/controllers/admin/admin_controller.rb'
end

#add_analytics_initializer ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 294

def add_analytics_initializer
  template '../templates/analytics_ruby_initializer.rb', 'config/initializers/analytics_ruby.rb'
  template '../templates/analytics_alias.html.erb.erb', 'app/views/users/analytics_alias.html.erb'
end

#add_api_foundation ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 563

def add_api_foundation
  # Create /app/api/base_api_controller.rb
  template '../templates/api_base_controller.rb', 'app/controllers/api/base_api_controller.rb', force: true

  # Create /app/api/v1/users_controller.rb
  template '../templates/api_users_controller.rb', 'app/controllers/api/v1/users_controller.rb', force: true

  # Update routes to include namespaced API
  inject_into_file 'config/routes.rb', before: /^end/ do <<-RUBY.gsub(/^ {6}/, '')

    # API-specific routes
    namespace 'api' do
      namespace 'v1' do
        resources :users, except: [:new, :edit]
      end
    end
    RUBY
  end
end

#add_app_css_file ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 666

def add_app_css_file
  create_file "app/assets/stylesheets/#{app_name}.sass" do <<-RUBY.gsub(/^ {8}/, '')
    .outer-wrapper
      position: relative
      min-height: 100%

    .navigation-wrapper
      @include outer-container

    .main
      padding: 18px
      @include outer-container
      padding-bottom: 450px

    .footer
      min-height: 420px
      position: absolute
      bottom: 0
      left: 0
    RUBY
  end
end

#add_auto_annotate_models_rake_task ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 769

def add_auto_annotate_models_rake_task
  template '../templates/auto_annotate_models.rake', 'lib/tasks/auto_annotate_models.rake', force: true
end

#add_bullet_gem_configuration ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 63

def add_bullet_gem_configuration
  config = <<-RUBY
  config.after_initialize do
Bullet.enable = true
Bullet.bullet_logger = true
Bullet.rails_logger = true
  end

  RUBY

  inject_into_file(
    "config/environments/development.rb",
    config,
    after: "config.action_mailer.raise_delivery_errors = true\n",
  )
end

#add_canard_roles_to_devise_resource ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 365

def add_canard_roles_to_devise_resource
  inject_into_file 'app/models/user.rb', before: /^end/ do <<-RUBY.gsub(/^ {6}/, '')

    before_create :generate_uuid

    # Permissions cascade/inherit through the roles listed below. The order of
    # this list is important, it should progress from least to most privelage
    ROLES = [:admin].freeze
    acts_as_user roles: ROLES
    roles ROLES

    validates :email,
              presence: true,
              format: /\\A[-a-z0-9_+\\.]+\\@([-a-z0-9]+\\.)+[a-z0-9]{2,8}\\z/i,
              uniqueness: true

    # NOTE: these password validations won't run if the user has an invite token
    validates :password,
              presence: true,
              length: { within: 8..72 },
              confirmation: true,
              on: :create
    validates :password_confirmation,
              presence: true,
              on: :create

    def tester?
      (email =~ /(example.com|headway.io)$/).present?
    end

    private

    def generate_uuid
      loop do
        uuid = SecureRandom.uuid
        self.uuid = uuid
        break unless User.exists?(uuid: uuid)
      end
    end
    RUBY
  end
end

#add_custom_routes_for_devise ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 417

def add_custom_routes_for_devise
  find = <<-RUBY.gsub(/^ {6}/, '')
    devise_for :users
    resources :users
  RUBY

  replace = <<-RUBY.gsub(/^ {6}/, '')
    devise_for :users, controllers: {
      registrations: 'devise_customizations/registrations',
    }

    resources :users do
      member do
        get 'analytics_alias'
      end
    end

    namespace :admin do
      resources :users do
        member do
          get 'impersonate'
        end

        collection do
          get 'stop_impersonating'
        end
      end
    end

    authenticated :user do
      # root to: 'dashboard#show', as: :authenticated_root
      root to: 'high_voltage/pages#show', id: 'welcome', as: :authenticated_root
    end

    devise_scope :user do
      get 'sign-in',  to: 'devise/sessions#new'
      get 'sign-out', to: 'devise/sessions#destroy'
    end
  RUBY

  replace_in_file 'config/routes.rb', find, replace
end

#add_devise_registrations_controller ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 288

def add_devise_registrations_controller
  template '../templates/devise_registrations_controller.rb',
           'app/controllers/devise_customizations/registrations_controller.rb'
end

#add_favicon ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 773

def add_favicon
  template '../templates/favicon.ico', 'app/assets/images/favicon.ico', force: true
end

#add_high_voltage_static_pages ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 615

def add_high_voltage_static_pages
  template '../templates/about.html.erb', "app/views/pages/about.html.#{@@use_slim ? 'slim' : 'erb'}"
  template '../templates/welcome.html.erb', "app/views/pages/welcome.html.erb"

  inject_into_file 'config/routes.rb', before: /^end/ do <<-RUBY.gsub(/^ {6}/, '')
    root 'high_voltage/pages#show', id: 'welcome'
    RUBY
  end

  create_file 'config/initializers/high_voltage.rb' do <<-RUBY.gsub(/^ {8}/, '')
    HighVoltage.configure do |config|
      config.route_drawer = HighVoltage::RouteDrawers::Root
    end
    RUBY
  end
end

#add_refills_to_stylesheets ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 724

def add_refills_to_stylesheets
  inject_into_file 'app/assets/stylesheets/application.scss', after: '@import "refills/flashes";'  do <<-RUBY.gsub(/^ {8}/, '')
    \n@import "refills/navigation";
    @import "refills/footer";

    @import "#{app_name}";
    RUBY
  end
end

#add_rubocop_config ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 765

def add_rubocop_config
  template '../templates/rubocop.yml', '.rubocop.yml', force: true
end

#add_specs ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 781

def add_specs
  inject_into_file 'app/jobs/application_job.rb', before: "class ApplicationJob < ActiveJob::Base" do <<-RUBY.gsub(/^ {8}/, '')
    # :nocov:
    RUBY
  end

  template '../templates/specs/controllers/admin/users_controller_spec.rb', 'spec/controllers/admin/users_controller_spec.rb', force: true
  template '../templates/specs/controllers/application_controller_spec.rb', 'spec/controllers/application_controller_spec.rb', force: true
end

#add_to_gitignore ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 822

def add_to_gitignore
  inject_into_file '.gitignore', after: '/tmp/*' do <<-RUBY.gsub(/^ {8}/, '')

    .env
    .zenflow-log
    errors.err
    .ctags
    .cadre/coverage.vim
    RUBY
  end
end

#add_token_auth ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 541

def add_token_auth
  inject_into_file 'app/models/user.rb', after: "class User < ApplicationRecord" do <<-'RUBY'.gsub(/^ {6}/, '')

    acts_as_token_authenticatable
    RUBY
  end

  generate 'migration add_authentication_token_to_users "authentication_token:string{30}:uniq"'

  # specs
  template '../templates/specs/features/user_impersonation_spec.rb', 'spec/features/user_impersonation_spec.rb', force: true
  template '../templates/specs/features/user_list_spec.rb', 'spec/features/user_list_spec.rb', force: true
  template '../templates/specs/features/user_signup_spec.rb', 'spec/features/user_signup_spec.rb', force: true
  template '../templates/specs/requests/user_api_spec.rb', 'spec/requests/user_api_spec.rb', force: true
  template '../templates/specs/support/api/schemas/user.json', 'spec/support/api/schemas/user.json', force: true
  template '../templates/config_initializers_ams.rb', 'config/initializers/ams.rb', force: true
  template '../templates/specs/support/matchers/api_schema_matcher.rb', 'spec/support/matchers/api_schema_matcher.rb', force: true
  template '../templates/specs/mailers/application_mailer_spec.rb.erb', 'spec/mailers/application_mailer_spec.rb', force: true
  template '../templates/specs/support/features/session_helpers.rb', 'spec/support/features/session_helpers.rb', force: true
  template '../templates/specs/support/request_spec_helper.rb', 'spec/support/request_spec_helper.rb', force: true
end

#agree?(prompt) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/voyage/app_builder.rb', line 3

def agree?(prompt)
  puts prompt
  response = STDIN.gets.chomp

  response.empty? || %w(y yes).include?(response.downcase.strip)
end

#authorize_devise_resource_for_index_action ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 334

def authorize_devise_resource_for_index_action
  generate 'canard:ability user can:manage:user cannot:destroy:user'
  generate 'canard:ability admin can:destroy:user'

  %w(admins users).each do |resource_name|
    replace_in_file "spec/abilities/#{resource_name}_spec.rb", "require 'cancan/matchers'", "require_relative '../support/matchers/custom_cancan'"
  end

  find = <<-RUBY.gsub(/^ {4}/, '')
    it { is_expected.to be_able_to(:manage, user) }
  RUBY
  replace = <<-RUBY.gsub(/^ {4}/, '')
    it { is_expected.to be_able_to(:manage, acting_user) }
    it { is_expected.to_not be_able_to(:manage, user) }
  RUBY
  replace_in_file 'spec/abilities/users_spec.rb', find, replace

  find = <<-RUBY.gsub(/^ {6}/, '')
    can [:manage], User
  RUBY
  replace = <<-RUBY.gsub(/^ {6}/, '')
    can [:manage], User do |u|
      u == user
    end
  RUBY
  replace_in_file 'app/abilities/users.rb', find, replace

  generate 'migration add_roles_mask_to_users roles_mask:integer'
  template '../templates/custom_cancan_matchers.rb', 'spec/support/matchers/custom_cancan.rb'
end

#bundle_without_production ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 25

def bundle_without_production
  template '../templates/bundle_config', '.bundle/config'
end

#configure_action_mailer ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 312

def configure_action_mailer
  action_mailer_host "development", %{"localhost:3000"}
  action_mailer_host "test", %{"www.example.com"}
  action_mailer_host "production", %{ENV.fetch("APPLICATION_HOST")}
end

#configure_action_mailer_in_specs ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 287

def configure_action_mailer_in_specs
  copy_file 'action_mailer.rb', 'spec/support/action_mailer.rb'
end

#configure_active_job ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 892

def configure_active_job
  # NOTE: (2017-06-02) jon => don't want this
end

#configure_automatic_deployment ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 382

def configure_automatic_deployment
  deploy_command = <<-YML.strip_heredoc
  deployment:
    staging:
      branch: master
      commands:
        - bin/deploy staging
  YML

  append_file "circle.yml", deploy_command
end

#configure_background_jobs_for_rspec ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 888

def configure_background_jobs_for_rspec
  # NOTE: (2017-05-31) jon => don't want this
end

#configure_capybara_webkit ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 896

def configure_capybara_webkit
  # NOTE: (2016-02-03) jonk => don't want this
end

#configure_ci ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 884

def configure_ci
  template "../templates/circle.yml.erb", "circle.yml"
end

#configure_generators ⇒ Object

OVERRIDE SUSPENDERS METHODS #



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# File 'lib/voyage/app_builder.rb', line 842

def configure_generators
  config = <<-RUBY.gsub(/^ {4}/, '')

    config.generators do |g|
      g.helper false
      g.javascript_engine false
      g.request_specs false
      g.routing_specs false
      g.stylesheets false
      g.test_framework :rspec
      g.view_specs false
      g.fixture_replacement :factory_girl, dir: 'spec/factories'
    end

  RUBY

  inject_into_class 'config/application.rb', 'Application', config
end

#configure_i18n_for_missing_translations ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 278

def configure_i18n_for_missing_translations
  raise_on_missing_translations_in("development")
  raise_on_missing_translations_in("test")
end

#configure_i18n_for_test_environment ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 274

def configure_i18n_for_test_environment
  copy_file "i18n.rb", "spec/support/i18n.rb"
end

#configure_quiet_assets ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 88

def configure_quiet_assets
  config = <<-RUBY
config.assets.quiet = true
  RUBY

  inject_into_class "config/application.rb", "Application", config
end

#configure_rack_timeout ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 300

def configure_rack_timeout
  rack_timeout_config = <<-RUBY
Rack::Timeout.timeout = (ENV["RACK_TIMEOUT"] || 10).to_i
  RUBY

  append_file "config/environments/production.rb", rack_timeout_config
end

#configure_rspec ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 263

def configure_rspec
  remove_file "spec/rails_helper.rb"
  remove_file "spec/spec_helper.rb"
  copy_file "rails_helper.rb", "spec/rails_helper.rb"
  copy_file "spec_helper.rb", "spec/spec_helper.rb"
end

#configure_rvm_prepend_bin_to_path ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 797

def configure_rvm_prepend_bin_to_path
  run "rm -f $rvm_path/hooks/after_cd_bundler"

  run "touch $rvm_path/hooks/after_cd_bundler"

  git_safe_dir = <<-RUBY.gsub(/^ {8}/, '')
    #!/usr/bin/env bash
    export PATH=".git/safe/../../bin:$PATH"
    RUBY

  run "echo '#{git_safe_dir}' >> $rvm_path/hooks/after_cd_bundler"

  run 'chmod +x $rvm_path/hooks/after_cd_bundler'

  run 'mkdir -p .git/safe'
end

#configure_simple_form ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 308

def configure_simple_form
  bundle_command "exec rails generate simple_form:install"
end

#configure_smtp ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 135

def configure_smtp
  copy_file 'smtp.rb', 'config/smtp.rb'

  prepend_file 'config/environments/production.rb',
    %{require Rails.root.join("config/smtp")\n}

  config = <<-RUBY

  config.action_mailer.delivery_method = :smtp
  config.action_mailer.smtp_settings = SMTP_SETTINGS
  RUBY

  inject_into_file 'config/environments/production.rb', config,
    after: "config.action_mailer.raise_delivery_errors = false"
end

#configure_spec_support_features ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 258

def configure_spec_support_features
  empty_directory_with_keep_file 'spec/features'
  empty_directory_with_keep_file 'spec/support/features'
end

#configure_time_formats ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 295

def configure_time_formats
  remove_file "config/locales/en.yml"
  template "config_locales_en.yml.erb", "config/locales/en.yml"
end

#copy_dotfiles ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 351

def copy_dotfiles
  directory("dotfiles", ".")
end

#copy_env_to_example ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 818

def copy_env_to_example
  run 'cp .env .env.example'
end

#copy_miscellaneous_files ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 412

def copy_miscellaneous_files
  copy_file "browserslist", "browserslist"
  copy_file "errors.rb", "config/initializers/errors.rb"
  copy_file "json_encoding.rb", "config/initializers/json_encoding.rb"
end

#create_application_layout ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 218

def create_application_layout
  template 'suspenders_layout.html.erb.erb',
    'app/views/layouts/application.html.erb',
    force: true
end

#create_database ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 872

def create_database
  # Suspenders version also migrates, we don't want that yet... we migrate in the rake_db_setup method
  bundle_command 'exec rake db:create'
end

#create_deploy_script ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 364

def create_deploy_script
  copy_file "bin_deploy", "bin/deploy"

  instructions = <<-MARKDOWN

## Deploying

If you have previously run the `./bin/setup` script,
you can deploy to staging and production with:

% ./bin/deploy staging
% ./bin/deploy production
  MARKDOWN

  append_file "README.md", instructions
  run "chmod a+x bin/deploy"
end

#create_github_repo(repo_name) ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 394

def create_github_repo(repo_name)
  run "hub create #{repo_name}"
end

#create_heroku_apps(flags) ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 359

def create_heroku_apps(flags)
  create_staging_heroku_app(flags)
  create_production_heroku_app(flags)
end

#create_partials_directory ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 198

def create_partials_directory
  empty_directory 'app/views/application'
end

#create_shared_css_overrides ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 211

def create_shared_css_overrides
  copy_file(
    "_css_overrides.html.erb",
    "app/views/application/_css_overrides.html.erb",
  )
end

#create_shared_flashes ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 202

def create_shared_flashes
  copy_file "_flashes.html.erb", "app/views/application/_flashes.html.erb"
  copy_file "flashes_helper.rb", "app/helpers/flashes_helper.rb"
end

#create_shared_javascripts ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 207

def create_shared_javascripts
  copy_file '_javascript.html.erb', 'app/views/application/_javascript.html.erb'
end

#customize_application_controller_for_devise(adding_first_and_last_name, devise_token_auth) ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 163

def customize_application_controller_for_devise(adding_first_and_last_name, devise_token_auth)
  inject_into_file 'app/controllers/application_controller.rb', before: "class ApplicationController < ActionController::Base" do <<-RUBY.gsub(/^ {8}/, '')
    # rubocop:disable Metrics/ClassLength, Metrics/MethodLength, Metrics/CyclomaticComplexity, Metrics/LineLength
    RUBY
  end

  inject_into_file 'app/controllers/application_controller.rb', after: "  protect_from_forgery with: :exception" do <<-RUBY.gsub(/^ {6}/, '')

    check_authorization unless: :devise_or_pages_controller?
    impersonates :user
    #{'acts_as_token_authentication_handler_for User' if devise_token_auth}

    before_action :configure_permitted_parameters, if: :devise_controller?
    before_action :authenticate_user!, unless: -> { is_a?(HighVoltage::PagesController) }
    before_action :add_layout_name_to_gon
    before_action :detect_device_type

    rescue_from CanCan::AccessDenied do |exception|
      redirect_to root_path, alert: exception.message
    end

    # Example Traditional Event: analytics_track(user, 'Created Widget', { widget_name: 'foo' })
    # Example Page View:         analytics_track(user, 'Page Viewed', { page_name: 'Terms and Conditions', url: '/terms' })
    #
    # NOTE: setup some defaults that we want to track on every event mixpanel_track
    # NOTE: the identify step happens on every page load to keep intercom.io and mixpanel people up to date
    def analytics_track(user, event_name, options = {})
      return if user.tester?

      sanitized_options = sanitize_hash_javascript(options)

      segment_attributes = {
        user_id: user.uuid,
        event: event_name,
        properties: {
          browser:         "\#{browser.name rescue 'unknown'}",
          browser_id:      "\#{browser.id rescue 'unknown'}",
          browser_version: "\#{browser.version rescue 'unknown'}",
          platform:        "\#{browser.platform rescue 'unknown'}",
          roles:           "\#{user.roles.map(&:to_s).join(',') rescue ''}",
          rails_env:       Rails.env.to_s,
        }.merge(sanitized_options),
      }

      Analytics.track(segment_attributes)
    end

    protected

    def devise_or_pages_controller?
      devise_controller? == true || is_a?(HighVoltage::PagesController)
    end

    def sanitize_hash_javascript(hash)
      hash.deep_stringify_keys
          .deep_transform_keys { |k| sanitize_javascript(k) }
          .transform_values    { |v| sanitize_javascript(v) }
    end

    def sanitize_javascript(value)
      value.is_a?(String) ? ActionView::Base.new.escape_javascript(value) : value
    end

    def configure_permitted_parameters
      devise_parameter_sanitizer.permit(
        :sign_up,
        keys: [
          #{':first_name,' if adding_first_and_last_name}
          #{':last_name,' if adding_first_and_last_name}
          :email,
          :password,
          :password_confirmation,
          :remember_me,
        ],
      )

      devise_parameter_sanitizer.permit(
        :sign_in,
        keys: [
          :login, :email, :password, :remember_me
        ],
      )

      devise_parameter_sanitizer.permit(
        :account_update,
        keys: [
          #{':first_name,' if adding_first_and_last_name}
          #{':last_name,' if adding_first_and_last_name}
          :email,
          :password,
          :password_confirmation,
          :current_password,
        ],
      )
    end

    def add_layout_name_to_gon
      gon.layout =
        case devise_controller?
        when true
          'devise'
        else
          'application'
        end
    end

    def detect_device_type
      request.variant =
        case request.user_agent
        when /iPad/i
          :tablet
        when /iPhone/i
          :phone
        when /Android/i && /mobile/i
          :phone
        when /Android/i
          :tablet
        when /Windows Phone/i
          :phone
        end
    end
    RUBY
  end
end

#customize_application_js ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 583

def customize_application_js
  template '../templates/application.js', 'app/assets/javascripts/application.js', force: true

  inject_into_file 'app/views/application/_javascript.html.erb', after: '<%= render "analytics" %>' do <<-RUBY.gsub(/^ {8}/, '')

    <%= render "analytics_identify" %>
  RUBY
  end
end

#customize_application_mailer ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 777

def customize_application_mailer
  template '../templates/application_mailer.rb.erb', 'app/mailers/application_mailer.rb', force: true
end

#customize_devise_views ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 143

def customize_devise_views
  %w(edit new).each do |file|
    if @@use_slim
      file_path = "app/views/devise/registrations/#{file}.html.slim"
      inject_into_file file_path, before: "    = f.input :email, required: true, autofocus: true" do <<-'RUBY'.gsub(/^ {8}/, '')
        = f.input :first_name, required: true, autofocus: true
        = f.input :last_name, required: true
        RUBY
      end
    else
      file_path = "app/views/devise/registrations/#{file}.html.erb"
      inject_into_file file_path, before: "    <%= f.input :email, required: true, autofocus: true %>" do <<-'RUBY'.gsub(/^ {8}/, '')
        <%= f.input :first_name, required: true, autofocus: true %>
        <%= f.input :last_name, required: true %>
        RUBY
      end
    end
  end
end

#customize_error_pages ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 418

def customize_error_pages
  meta_tags =<<-EOS
  <meta charset="utf-8" />
  <meta name="ROBOTS" content="NOODP" />
  <meta name="viewport" content="initial-scale=1" />
  EOS

  %w(500 404 422).each do |page|
    inject_into_file "public/#{page}.html", meta_tags, after: "<head>\n"
    replace_in_file "public/#{page}.html", /<!--.+-->\n/, ''
  end
end

#customize_resource_controller_for_devise(adding_first_and_last_name) ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 299

def customize_resource_controller_for_devise(adding_first_and_last_name)
  bundle_command 'exec rails generate controller users'
  run 'rm spec/controllers/users_controller_spec.rb'

  inject_into_class 'app/controllers/users_controller.rb', 'UsersController' do <<-RUBY.gsub(/^ {6}/, '')
    # https://github.com/CanCanCommunity/cancancan/wiki/authorizing-controller-actions
    # load_and_authorize_resource only: []
    skip_authorization_check only: [:analytics_alias]

    def analytics_alias
      # view file has JS that will identify the anonymous user through segment
      # after registration via "after devise registration path"
    end
    RUBY
  end
end

#customize_user_factory(adding_first_and_last_name) ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 460

def customize_user_factory(adding_first_and_last_name)
  inject_into_file 'spec/factories/users.rb', before: /^  end/ do <<-'RUBY'.gsub(/^ {4}/, '')
    password 'asdfjkl123'
    password_confirmation 'asdfjkl123'
    sequence(:email) { |n| "user_#{n}@example.com" }

    trait :admin do
      roles [:admin]
      email '[email protected]'
    end
    RUBY
  end

  if adding_first_and_last_name
    inject_into_file 'spec/factories/users.rb', after: /roles \[:admin\]\n/ do <<-'RUBY'.gsub(/^ {4}/, '')
      first_name 'Admin'
      last_name 'User'
      RUBY
    end
  end
end

#customize_user_spec ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 491

def customize_user_spec
  find = <<-RUBY.gsub(/^ {6}/, '')
    pending "add some examples to (or delete) \#{__FILE__}"
  RUBY

  replace = <<-RUBY.gsub(/^ {6}/, '')
    describe 'constants' do
      context 'roles' do
        it 'has the admin role' do
          expect(User::ROLES).to eq([:admin])
        end
      end
    end

    describe 'validations' do
      it { is_expected.to validate_presence_of(:email) }
      it { is_expected.to validate_presence_of(:password) }
      it { is_expected.to validate_presence_of(:password_confirmation) }
    end

    context '#tester?' do
      ['example.com', 'headway.io'].each do |domain|
        it "an email including the \#{domain} domain is a tester" do
          user = build(:user, email: "asdf@\#{domain}")
          expect(user.tester?).to eq(true)
        end
      end

      it 'an email including the gmail.com domain is NOT a tester' do
        user = build(:user, email: '[email protected]')
        expect(user.tester?).to eq(false)
      end
    end

    context 'new user creation' do
      it 'ensures uniqueness of the uuid' do
        allow(User).to receive(:exists?).and_return(true, false)

        expect do
          create(:user)
        end.to change { User.count }.by(1)

        expect(User).to have_received(:exists?).exactly(2).times
      end
    end
  RUBY

  replace_in_file 'spec/models/user_spec.rb', find, replace
end

#disallow_wrapping_parameters ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 194

def disallow_wrapping_parameters
  remove_file "config/initializers/wrap_parameters.rb"
end

#downgrade_neat_1_8_so_refills_media_mixin_works ⇒ Object

TEMP FIX

https://github.com/thoughtbot/bourbon/issues/993
https://github.com/thoughtbot/refills/issues/400



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# File 'lib/voyage/app_builder.rb', line 638

def downgrade_neat_1_8_so_refills_media_mixin_works
  replace_in_file 'Gemfile', "gem 'neat', '~> 2.0.0.beta.1'", "gem 'neat', '~> 1.8.0'"
  run 'gem uninstall -x neat -v2.0.0'
  run 'bundle'
end

#enable_database_cleaner ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 247

def enable_database_cleaner
  copy_file 'database_cleaner_rspec.rb', 'spec/support/database_cleaner.rb'
end

#enable_rack_canonical_host ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 151

def enable_rack_canonical_host
  config = <<-RUBY

  if ENV.fetch("HEROKU_APP_NAME", "").include?("staging-pr-")
ENV["APPLICATION_HOST"] = ENV["HEROKU_APP_NAME"] + ".herokuapp.com"
  end

  config.middleware.use Rack::CanonicalHost, ENV.fetch("APPLICATION_HOST")
  RUBY

  inject_into_file(
    "config/environments/production.rb",
    config,
    after: "Rails.application.configure do",
  )
end

#enable_rack_deflater ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 168

def enable_rack_deflater
  configure_environment "production", "config.middleware.use Rack::Deflater"
end

#gemfile ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 27

def gemfile
  template "Gemfile.erb", "Gemfile"
end

#generate_data_migrations ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 606

def generate_data_migrations
  generate 'data_migrations:install'

  file = Dir['db/migrate/*_create_data_migrations.rb'].first
  replace_in_file file, 'class CreateDataMigrations < ActiveRecord::Migration', "class CreateDataMigrations < ActiveRecord::Migration[4.2]"

  empty_directory_with_keep_file 'db/data_migrate'
end

#generate_factories_file ⇒ Object

setup_test_environment overrides



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# File 'lib/voyage/app_builder.rb', line 880

def generate_factories_file
  # NOTE: (2016-02-03) jonk => don't want this, we use individual factories
end

#generate_refills ⇒ Object

ADDING REFILLS COMPONENTS



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# File 'lib/voyage/app_builder.rb', line 651

def generate_refills
  if @@accept_defaults || agree?('Would you like to install default Refill components? (Y/n)')
    @@add_refills = true

    bundle_command 'exec rails generate refills:import navigation'
    bundle_command 'exec rails generate refills:import footer'

    add_admin_links_to_navigation

    add_refills_to_stylesheets
  else
    @@add_refills = false
  end
end

#generate_rspec ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 325

def generate_rspec
  generate 'rspec:install'
end

#generate_ruby_version_and_gemset ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 602

def generate_ruby_version_and_gemset
  create_file '.ruby-gemset', "#{app_name}\n"
end

#generate_seeder_templates(using_devise:) ⇒ Object

END DEVISE SETUP



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# File 'lib/voyage/app_builder.rb', line 485

def generate_seeder_templates(using_devise:)
  config = { force: true, using_devise: using_devise }
  template '../templates/seeder.rb.erb', 'lib/seeder.rb', config
  template '../templates/seeds.rb.erb', 'db/seeds.rb', config
end

#generate_test_environment ⇒ Object

END ADDING REFILLS COMPONENTS



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# File 'lib/voyage/app_builder.rb', line 737

def generate_test_environment
  template '../templates/controller_helpers.rb', 'spec/support/controller_helpers.rb'
  template '../templates/simplecov.rb', '.simplecov'
end

#gitignore ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 23

def gitignore
  copy_file "suspenders_gitignore", ".gitignore"
end

#init_git ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 355

def init_git
  run 'git init'
end

#install_devise ⇒ Object

DEVISE SETUP



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# File 'lib/voyage/app_builder.rb', line 90

def install_devise
  if @@accept_defaults || agree?('Would you like to install Devise? (Y/n)')
    @@use_devise = true

    if @@accept_defaults || agree?('Would you like to install Devise token authentication? (Y/n)')
      devise_token_auth = true
    end

    bundle_command 'exec rails generate devise:install'

    if @@accept_defaults || agree?("Would you like to add first_name and last_name to the devise model? (Y/n)")
      adding_first_and_last_name = true

      bundle_command "exec rails generate resource user first_name:string last_name:string uuid:string"

      replace_in_file 'spec/factories/users.rb',
        'first_name "MyString"', 'first_name { Faker::Name.first_name }'
      replace_in_file 'spec/factories/users.rb',
        'last_name "MyString"', 'last_name { Faker::Name.last_name }'
      replace_in_file 'spec/factories/users.rb',
        'uuid "MyString"', 'uuid { SecureRandom.uuid }'
    end

    bundle_command "exec rails generate devise user"
    bundle_command 'exec rails generate devise:views'

    if @@use_slim
      inside('lib') do # arbitrary, run in context of newly generated app
        run "erb2slim '../app/views/devise' '../app/views/devise'"
        run "erb2slim -d '../app/views/devise'"
      end
    end

    customize_devise_views if adding_first_and_last_name
    customize_application_controller_for_devise(adding_first_and_last_name, devise_token_auth)
    add_devise_registrations_controller
    customize_resource_controller_for_devise(adding_first_and_last_name)
    add_admin_views_for_devise_resource(adding_first_and_last_name)
    add_analytics_initializer
    authorize_devise_resource_for_index_action
    add_canard_roles_to_devise_resource
    update_devise_initializer
    add_custom_routes_for_devise
    customize_user_factory(adding_first_and_last_name)
    generate_seeder_templates(using_devise: true)
    customize_user_spec
    add_token_auth
  else
    @@use_devise = false
    generate_seeder_templates(using_devise: false)
  end
end

#overwrite_application_layout ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 865

def overwrite_application_layout
  template '../templates/voyage_layout.html.erb.erb', 'app/views/layouts/application.html.erb', force: true, add_refills: @@add_refills
  update_application_layout_for_slim if @@use_slim

  template '../templates/analytics_identify.html.erb.erb', 'app/views/application/_analytics_identify.html.erb', force: true
end

#provide_dev_prime_task ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 101

def provide_dev_prime_task
  copy_file 'dev.rake', 'lib/tasks/dev.rake'
end

#provide_setup_script ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 96

def provide_setup_script
  template "bin_setup", "bin/setup", force: true
  run "chmod a+x bin/setup"
end

#provide_shoulda_matchers_config ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 251

def provide_shoulda_matchers_config
  copy_file(
    "shoulda_matchers_config_rspec.rb",
    "spec/support/shoulda_matchers.rb"
  )
end

#raise_on_delivery_errors ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 42

def raise_on_delivery_errors
  replace_in_file 'config/environments/development.rb',
    'raise_delivery_errors = false', 'raise_delivery_errors = true'
end

#raise_on_missing_assets_in_test ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 38

def raise_on_missing_assets_in_test
  configure_environment "test", "config.assets.raise_runtime_errors = true"
end

#raise_on_unpermitted_parameters ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 80

def raise_on_unpermitted_parameters
  config = <<-RUBY
config.action_controller.action_on_unpermitted_parameters = :raise
  RUBY

  inject_into_class "config/application.rb", "Application", config
end

#rake_db_setup ⇒ Object

Do this last



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# File 'lib/voyage/app_builder.rb', line 792

def rake_db_setup
  rake 'db:migrate'
  rake 'db:seed' if File.exist?('config/initializers/devise.rb')
end

#readme ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 19

def readme
  template 'README.md.erb', 'README.md'
end

#remove_config_comment_lines ⇒ Object

End setup_test_environment overrides



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# File 'lib/voyage/app_builder.rb', line 903

def remove_config_comment_lines
  # NOTE: (2016-02-09) jonk => don't want this
end

#remove_routes_comment_lines ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 453

def remove_routes_comment_lines
  replace_in_file 'config/routes.rb',
    /Rails\.application\.routes\.draw do.*end/m,
    "Rails.application.routes.draw do\nend"
end

#remove_turbolinks ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 47

def remove_turbolinks
  replace_in_file(
    "app/assets/javascripts/application.js",
    "//= require turbolinks",
    ""
  )
end

#replace_default_puma_configuration ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 329

def replace_default_puma_configuration
  copy_file "puma.rb", "config/puma.rb", force: true
end

#replace_gemfile(path) ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 233

def replace_gemfile(path)
  template 'Gemfile.erb', 'Gemfile', force: true do |content|
    if path
      content.gsub(%r{gem .suspenders.}) { |s| %{#{s}, path: "#{path}"} }
    else
      content
    end
  end
end

#require_files_in_lib ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 593

def require_files_in_lib
  create_file 'config/initializers/require_files_in_lib.rb' do <<-RUBY.gsub(/^ {8}/, '')
    # rubocop:disable Rails/FilePath
    Dir[File.join(Rails.root, 'lib', '**', '*.rb')].each { |l| require l }
    # rubocop:enable Rails/FilePath
    RUBY
  end
end

#run_rubocop_auto_correct ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 814

def run_rubocop_auto_correct
  run 'rubocop --auto-correct'
end

#set_ruby_to_version_being_used ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 861

def set_ruby_to_version_being_used
  create_file '.ruby-version', "#{Voyage::RUBY_VERSION}\n"
end

#set_test_delivery_method ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 55

def set_test_delivery_method
  inject_into_file(
    "config/environments/development.rb",
    "\n  config.action_mailer.delivery_method = :file",
    after: "config.action_mailer.raise_delivery_errors = true",
  )
end

#set_up_factory_girl_for_rspec ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 123

def set_up_factory_girl_for_rspec
  copy_file 'factory_girl_rspec.rb', 'spec/support/factory_girl.rb'
end

#set_up_forego ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 333

def set_up_forego
  copy_file "Procfile", "Procfile"
end

#set_up_hound ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 131

def set_up_hound
  copy_file "hound.yml", ".hound.yml"
end

#setup_asset_host ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 172

def setup_asset_host
  replace_in_file 'config/environments/production.rb',
    "# config.action_controller.asset_host = 'http://assets.example.com'",
    'config.action_controller.asset_host = ENV.fetch("ASSET_HOST", ENV.fetch("APPLICATION_HOST"))'

  replace_in_file 'config/initializers/assets.rb',
    "config.assets.version = '1.0'",
    'config.assets.version = (ENV["ASSETS_VERSION"] || "1.0")'

  config = <<-EOD
config.public_file_server.headers = {
"Cache-Control" => "public, max-age=31557600",
  }
  EOD

  configure_environment("production", config)
end

#setup_bundler_audit ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 403

def setup_bundler_audit
  copy_file "bundler_audit.rake", "lib/tasks/bundler_audit.rake"
  append_file "Rakefile", %{\ntask default: "bundle:audit"\n}
end

#setup_default_directories ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 337

def setup_default_directories
  [
    'app/views/pages',
    'spec/lib',
    'spec/controllers',
    'spec/helpers',
    'spec/support/matchers',
    'spec/support/mixins',
    'spec/support/shared_examples'
  ].each do |dir|
    empty_directory_with_keep_file dir
  end
end

#setup_default_rake_task ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 459

def setup_default_rake_task
  append_file 'Rakefile' do
    <<-EOS
task(:default).clear
task default: [:spec]

if defined? RSpec
  task(:spec).clear
  RSpec::Core::RakeTask.new(:spec) do |t|
t.verbose = false
  end
end
    EOS
  end
end

#setup_rack_mini_profiler ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 31

def setup_rack_mini_profiler
  copy_file(
    "rack_mini_profiler.rb",
    "config/initializers/rack_mini_profiler.rb",
  )
end

#setup_secret_token ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 190

def setup_secret_token
  template 'secrets.yml', 'config/secrets.yml', force: true
end

#setup_segment ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 398

def setup_segment
  copy_file '_analytics.html.erb',
    'app/views/application/_analytics.html.erb'
end

#setup_spring ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 408

def setup_spring
  bundle_command "exec spring binstub --all"
end

#spin_up_webpacker ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 834

def spin_up_webpacker
  rake 'webpacker:install'
  rake 'webpacker:install:react'
end

#update_application_css_file ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 693

def update_application_css_file
  inject_into_file 'app/assets/stylesheets/application.scss', before: '@import "neat";'  do <<-RUBY.gsub(/^ {8}/, '')
    $visual-grid: true;
    $visual-grid-color: #9cf !default;
    $visual-grid-index: front !default;
    $visual-grid-opacity: 0.1 !default;
    RUBY
  end
end

#update_application_layout_for_slim ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 40

def update_application_layout_for_slim
  find = <<-RUBY.gsub(/^ {4}/, '')
    <%#
      Configure default and controller-, and view-specific titles in
      config/locales/en.yml. For more see:
      https://github.com/calebthompson/title#usage
    %>
  RUBY

  replace = <<-RUBY.gsub(/^ {8}/, '')
      <% # Configure default and controller-, and view-specific titles in
    # config/locales/en.yml. For more see:
    # https://github.com/calebthompson/title#usage %>
  RUBY

  replace_in_file 'app/views/layouts/application.html.erb', find, replace

  inside('lib') do # arbitrary, run in context of newly generated app
    run "erb2slim '../app/views/layouts' '../app/views/layouts'"
    run "erb2slim -d '../app/views/layouts'"
  end

  # strip trailing space after closing "> in application layout before
  # trying to find and replace it
  replace_in_file 'app/views/layouts/application.html.slim', '| "> ', '| ">'

  find = <<-RUBY.gsub(/^ {6}/, '')
    |  <body class="
    = devise_controller? ? 'devise' : 'application'
    = body_class
    | ">
  RUBY

  replace = <<-RUBY.gsub(/^ {6}/, '')
    body class="\#{devise_controller? ? 'devise' : 'application'} \#{body_class}"
  RUBY

  replace_in_file 'app/views/layouts/application.html.slim', find, replace
end

#update_application_rb_for_slim ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 80

def update_application_rb_for_slim
  inject_into_file "config/application.rb", after: "     g.fixture_replacement :factory_girl, dir: 'spec/factories'\n" do <<-'RUBY'.gsub(/^ {2}/, '')
    g.template_engine :slim
    RUBY
  end
end

#update_devise_initializer ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 408

def update_devise_initializer
  replace_in_file 'config/initializers/devise.rb',
    'config.sign_out_via = :delete', 'config.sign_out_via = :get'

  replace_in_file 'config/initializers/devise.rb',
    "config.mailer_sender = '[email protected]'",
    "config.mailer_sender = '[email protected]'"
end

#update_flashes_css_file ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 689

def update_flashes_css_file
  replace_in_file 'app/assets/stylesheets/refills/_flashes.scss', "margin-bottom: $base-spacing / 2;", "// margin-bottom: $base-spacing / 2;"
end

#update_gemset_in_gemfile ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 18

def update_gemset_in_gemfile
  replace_in_file 'Gemfile', '#ruby-gemset', "#ruby-gemset=#{app_name}"

  # Remove commented out lines from template
  gsub_file('Gemfile', /^\s{2}\n/, '')
end

#update_test_environment ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 742

def update_test_environment
  inject_into_file 'spec/support/factory_girl.rb', before: /^end/ do <<-RUBY.gsub(/^ {6}/, '')

    # Spring doesn't reload factory_girl
    config.before(:all) do
      FactoryGirl.reload
    end
    RUBY
  end

  template "../templates/rails_helper.rb.erb", "spec/rails_helper.rb", force: true

  %w(test development).each do |environment|
    inject_into_file "config/environments/#{environment}.rb", after: /^end/ do <<-RUBY.gsub(/^ {10}/, '')

      # NOTE: console can use create(:factory_name), or build(:factory_name) without
      # needing to use FactoryGirl.create(:factory_name).
      include FactoryGirl::Syntax::Methods
      RUBY
    end
  end
end

#use_postgres_config_template ⇒ Object 



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# File 'lib/suspenders/app_builder.rb', line 224

def use_postgres_config_template
  template 'postgresql_database.yml.erb', 'config/database.yml',
    force: true
end

#use_slim ⇒ Object 



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# File 'lib/voyage/app_builder.rb', line 29

def use_slim
  if @@accept_defaults || agree?('Would you like to use slim? (Y/n)')
    @@use_slim = true
    run 'gem install html2slim'
    update_application_rb_for_slim
  else
    @@use_slim = false
    gsub_file('Gemfile', /^gem 'slim-rails'\n/, '')
  end
end