Module: Rails::Command

Extended by:
ActiveSupport::Autoload
Includes:
Behavior
Defined in:
lib/rails/command.rb,
lib/rails/command/base.rb,
lib/rails/command/actions.rb,
lib/rails/command/behavior.rb,
lib/rails/commands/new/new_command.rb,
lib/rails/commands/help/help_command.rb,
lib/rails/commands/rake/rake_command.rb,
lib/rails/commands/test/test_command.rb,
lib/rails/command/environment_argument.rb,
lib/rails/commands/plugin/plugin_command.rb,
lib/rails/commands/runner/runner_command.rb,
lib/rails/commands/server/server_command.rb,
lib/rails/commands/console/console_command.rb,
lib/rails/commands/destroy/destroy_command.rb,
lib/rails/commands/secrets/secrets_command.rb,
lib/rails/commands/version/version_command.rb,
lib/rails/commands/generate/generate_command.rb,
lib/rails/commands/dbconsole/dbconsole_command.rb,
lib/rails/commands/application/application_command.rb

Defined Under Namespace

Modules: Actions, Behavior, EnvironmentArgument Classes: ApplicationCommand, Base, ConsoleCommand, DbconsoleCommand, DestroyCommand, GenerateCommand, HelpCommand, NewCommand, PluginCommand, RakeCommand, RunnerCommand, SecretsCommand, ServerCommand, TestCommand, VersionCommand

Constant Summary collapse

HELP_MAPPINGS = 
%w(-h -? --help)

Class Method Summary collapse

Class Method Details

.environment ⇒ Object

:nodoc:



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# File 'lib/rails/command.rb', line 25

def environment # :nodoc:
  ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development"
end

.find_by_namespace(namespace, command_name = nil) ⇒ Object

Rails finds namespaces similar to Thor, it only adds one rule:

Command names must end with “_command.rb”. This is required because Rails looks in load paths and loads the command just before it’s going to be used.

find_by_namespace :webrat, :rails, :integration

Will search for the following commands:

"rails:webrat", "webrat:integration", "webrat"

Notice that “rails:commands:webrat” could be loaded as well, what Rails looks for is the first and last parts of the namespace.



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# File 'lib/rails/command.rb', line 63

def find_by_namespace(namespace, command_name = nil) # :nodoc:
  lookups = [ namespace ]
  lookups << "#{namespace}:#{command_name}" if command_name
  lookups.concat lookups.map { |lookup| "rails:#{lookup}" }

  lookup(lookups)

  namespaces = subclasses.index_by(&:namespace)
  namespaces[(lookups & namespaces.keys).first]
end

.hidden_commands ⇒ Object

:nodoc:



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# File 'lib/rails/command.rb', line 21

def hidden_commands # :nodoc:
  @hidden_commands ||= []
end

.invoke(full_namespace, args = [], **config) ⇒ Object

Receives a namespace, arguments and the behavior to invoke the command.



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# File 'lib/rails/command.rb', line 30

def invoke(full_namespace, args = [], **config)
  namespace = full_namespace = full_namespace.to_s

  if char = namespace =~ /:(\w+)$/
    command_name, namespace = $1, namespace.slice(0, char)
  else
    command_name = namespace
  end

  command_name, namespace = "help", "help" if command_name.blank? || HELP_MAPPINGS.include?(command_name)
  command_name, namespace = "version", "version" if %w( -v --version ).include?(command_name)

  command = find_by_namespace(namespace, command_name)
  if command && command.all_commands[command_name]
    command.perform(command_name, args, config)
  else
    find_by_namespace("rake").perform(full_namespace, args, config)
  end
end

.print_commands ⇒ Object

:nodoc:



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# File 'lib/rails/command.rb', line 83

def print_commands # :nodoc:
  sorted_groups.each { |b, n| print_list(b, n) }
end

.root ⇒ Object

Returns the root of the Rails engine or app running the command.



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# File 'lib/rails/command.rb', line 75

def root
  if defined?(ENGINE_ROOT)
    Pathname.new(ENGINE_ROOT)
  elsif defined?(APP_PATH)
    Pathname.new(File.expand_path("../..", APP_PATH))
  end
end

.sorted_groups ⇒ Object

:nodoc:



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# File 'lib/rails/command.rb', line 87

def sorted_groups # :nodoc:
  lookup!

  groups = (subclasses - hidden_commands).group_by { |c| c.namespace.split(":").first }
  groups.transform_values! { |commands| commands.flat_map(&:printing_commands).sort }

  rails = groups.delete("rails")
  [[ "rails", rails ]] + groups.sort.to_a
end