class Rails::Command::Base - rails 8.1.0 documentation

banner (command = nil, *)

# File railties/lib/rails/command/base.rb, line 84
def banner(command = nil, *)
  if command
    # Similar to Thor's banner, but show the namespace (minus the
    # "rails:" prefix), and show the command's declared bin instead of
    # the command runner.
    command.formatted_usage(self).gsub(/^#{namespace}:(\w+)/) { executable($1) }
  else
    executable
  end
end

base_name ()

Sets the base_name taking into account the current class namespace.

Rails::Command::TestCommand.base_name # => 'rails'

# File railties/lib/rails/command/base.rb, line 104
def base_name
  @base_name ||= if base = name.to_s.split("::").first
    base.underscore
  end
end

command_name ()

Return command name without namespaces.

Rails::Command::TestCommand.command_name # => 'test'

# File railties/lib/rails/command/base.rb, line 113
def command_name
  @command_name ||= if command = name.to_s.split("::").last
    command.chomp!("Command")
    command.underscore
  end
end

default_command_root ()

Default file root to place extra files a command might need, placed one folder above the command file.

For a Rails::Command::TestCommand placed in rails/command/test_command.rb would return rails/test.

# File railties/lib/rails/command/base.rb, line 137
def default_command_root
  @default_command_root = resolve_path(".") unless defined?(@default_command_root)
  @default_command_root
end

desc (usage = nil, description = nil, options = {})

Tries to get the description from a USAGE file one folder above the command root.

Calls superclass method

# File railties/lib/rails/command/base.rb, line 32
def desc(usage = nil, description = nil, options = {})
  if usage
    super
  else
    class_usage
  end
end

engine? ()

Returns true when the app is a Rails engine.

# File railties/lib/rails/command/base.rb, line 26
def engine?
  defined?(ENGINE_ROOT)
end

executable (command_name = self.command_name)

# File railties/lib/rails/command/base.rb, line 80
def executable(command_name = self.command_name)
  "#{bin} #{namespaced_name(command_name)}"
end

hide_command! ()

Convenience method to hide this command from the available ones when running rails command.

# File railties/lib/rails/command/base.rb, line 53
def hide_command!
  Rails::Command.hidden_commands << self
end

namespace (name = nil)

Convenience method to get the namespace from the class name. It’s the same as Thor default except that the Command at the end of the class is removed.

Calls superclass method

# File railties/lib/rails/command/base.rb, line 43
def namespace(name = nil)
  if name
    super
  else
    @namespace ||= super.chomp("_command").sub(/:command:/, ":")
  end
end

printing_commands ()

# File railties/lib/rails/command/base.rb, line 74
def printing_commands
  commands.filter_map do |name, command|
    [namespaced_name(name), command.description] unless command.hidden?
  end
end

usage_path ()

Path to lookup a USAGE description in a file.

# File railties/lib/rails/command/base.rb, line 127
def usage_path
  @usage_path = resolve_path("USAGE") unless defined?(@usage_path)
  @usage_path
end