- MODULE Rails::Generators::Actions
- MODULE Rails::Generators::Migration
- MODULE Rails::Generators::Testing
- CLASS Rails::Generators::ActiveModel
- CLASS Rails::Generators::AppBase
- CLASS Rails::Generators::Base
- CLASS Rails::Generators::EncryptedSecretsGenerator
- CLASS Rails::Generators::NamedBase
- CLASS Rails::Generators::TestCase
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DEFAULT_ALIASES | = | { rails: { actions: "-a", orm: "-o", javascripts: "-j", javascript_engine: "-je", resource_controller: "-c", scaffold_controller: "-c", stylesheets: "-y", stylesheet_engine: "-se", scaffold_stylesheet: "-ss", template_engine: "-e", test_framework: "-t" }, test_unit: { fixture_replacement: "-r", } } |
DEFAULT_OPTIONS | = | { rails: { api: false, assets: true, force_plural: false, helper: true, integration_tool: nil, javascripts: true, javascript_engine: :js, orm: false, resource_controller: :controller, resource_route: true, scaffold_controller: :scaffold_controller, stylesheets: true, stylesheet_engine: :css, scaffold_stylesheet: true, system_tests: nil, test_framework: nil, template_engine: :erb } } |
RAILS_DEV_PATH | = | File.expand_path("../../../../../..", File.dirname(__FILE__)) |
We need to store the RAILS_DEV_PATH in a constant, otherwise the path can change in Ruby 1.8.7 when we FileUtils.cd. |
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RESERVED_NAMES | = | %w[application destroy plugin runner test] |
Configure generators for API only applications. It basically hides everything that is usually browser related, such as assets and session migration generators, and completely disable helpers and assets so generators such as scaffold won't create them.
# File railties/lib/rails/generators.rb, line 115 def api_only! hide_namespaces "assets", "helper", "css", "js" options[:rails].merge!( api: true, assets: false, helper: false, template_engine: nil ) if ARGV.first == "mailer" options[:rails].merge!(template_engine: :erb) end end
Hold configured generators fallbacks. If a plugin developer wants a generator group to fallback to another group in case of missing generators, they can add a fallback.
For example, shoulda is considered a test_framework and is an extension of test_unit. However, most part of shoulda generators are similar to test_unit ones.
Shoulda then can tell generators to search for test_unit generators when some of them are not available by adding a fallback:
Rails::Generators.fallbacks[:shoulda] = :test_unit
Show help message with available generators.
# File railties/lib/rails/generators.rb, line 178 def help(command = "generate") puts "Usage: rails #{command} GENERATOR [args] [options]" puts puts "General options:" puts " -h, [--help] # Print generator's options and usage" puts " -p, [--pretend] # Run but do not make any changes" puts " -f, [--force] # Overwrite files that already exist" puts " -s, [--skip] # Skip files that already exist" puts " -q, [--quiet] # Suppress status output" puts puts "Please choose a generator below." puts print_generators end
Returns an array of generator namespaces that are hidden. Generator namespaces may be hidden for a variety of reasons. Some are aliased such as “rails:migration” and can be invoked with the shorter “migration”, others are private to other generators such as “css:scaffold”.
Source: on GitHub
|Receives a namespace, arguments and the behavior to invoke the generator. It's used as the default entry point for generate, destroy and update commands.
# File railties/lib/rails/generators.rb, line 265 def invoke(namespace, args = ARGV, config = {}) names = namespace.to_s.split(":") if klass = find_by_namespace(names.pop, names.any? && names.join(":")) args << "--help" if args.empty? && klass.arguments.any?(&:required?) klass.start(args, config) else options = sorted_groups.flat_map(&:last) suggestions = options.sort_by { |suggested| levenshtein_distance(namespace.to_s, suggested) }.first(3) msg = "Could not find generator '#{namespace}'. " msg << "Maybe you meant #{ suggestions.map { |s| "'#{s}'" }.to_sentence(last_word_connector: " or ", locale: :en) }\n" msg << "Run `rails generate --help` for more options." puts msg end end
Remove the color from output.
# File railties/lib/rails/generators.rb, line 203 def sorted_groups namespaces = public_namespaces namespaces.sort! groups = Hash.new { |h, k| h[k] = [] } namespaces.each do |namespace| base = namespace.split(":").first groups[base] << namespace end rails = groups.delete("rails") rails.map! { |n| n.sub(/^rails:/, "") } rails.delete("app") rails.delete("plugin") rails.delete("encrypted_secrets") hidden_namespaces.each { |n| groups.delete(n.to_s) } [[ "rails", rails ]] + groups.sort.to_a end