diff options
Diffstat (limited to 'railties/lib/rails/commands')
| -rw-r--r-- | railties/lib/rails/commands/commands_tasks.rb | 170 | ||||
| -rw-r--r-- | railties/lib/rails/commands/plugin.rb | 9 | ||||
| -rw-r--r-- | railties/lib/rails/commands/plugin_new.rb | 9 |
3 files changed, 179 insertions, 9 deletions
diff --git a/railties/lib/rails/commands/commands_tasks.rb b/railties/lib/rails/commands/commands_tasks.rb new file mode 100644 index 0000000000..bb25d6419b --- /dev/null +++ b/railties/lib/rails/commands/commands_tasks.rb @@ -0,0 +1,170 @@ +module Rails + # This is a class which takes in a rails command and initiates the appropriate + # initiation sequence. + # + # Warning: This class mutates ARGV because some commands require manipulating + # it before they are run. + class CommandsTasks # :nodoc: + attr_reader :argv + + HELP_MESSAGE = <<-EOT +Usage: rails COMMAND [ARGS] + +The most common rails commands are: + generate Generate new code (short-cut alias: "g") + console Start the Rails console (short-cut alias: "c") + server Start the Rails server (short-cut alias: "s") + dbconsole Start a console for the database specified in config/database.yml + (short-cut alias: "db") + new Create a new Rails application. "rails new my_app" creates a + new application called MyApp in "./my_app" + +In addition to those, there are: + application Generate the Rails application code + destroy Undo code generated with "generate" (short-cut alias: "d") + plugin new Generates skeleton for developing a Rails plugin + runner Run a piece of code in the application environment (short-cut alias: "r") + +All commands can be run with -h (or --help) for more information. +EOT + + COMMAND_WHITELIST = %(plugin generate destroy console server dbconsole application runner new version help) + + def initialize(argv) + @argv = argv + end + + def run_command!(command) + command = parse_command(command) + if COMMAND_WHITELIST.include?(command) + send(command) + else + write_error_message(command) + end + end + + def plugin + require_command!("plugin") + end + + def generate + generate_or_destroy(:generate) + end + + def console + require_command!("console") + options = Rails::Console.parse_arguments(argv) + + # RAILS_ENV needs to be set before config/application is required + ENV['RAILS_ENV'] = options[:environment] if options[:environment] + + # shift ARGV so IRB doesn't freak + shift_argv! + + require_application_and_environment! + Rails::Console.start(Rails.application, options) + end + + def server + set_application_directory! + require_command!("server") + + Rails::Server.new.tap do |server| + # We need to require application after the server sets environment, + # otherwise the --environment option given to the server won't propagate. + require APP_PATH + Dir.chdir(Rails.application.root) + server.start + end + end + + def dbconsole + require_command!("dbconsole") + Rails::DBConsole.start + end + + def application + require_command!("application") + end + + def runner + require_command!("runner") + end + + def new + if %w(-h --help).include?(argv.first) + require_command!("application") + else + exit_with_initialization_warning! + end + end + + def version + ARGV.unshift '--version' + require_command!("application") + end + + def help + write_help_message + end + + private + + def exit_with_initialization_warning! + puts "Can't initialize a new Rails application within the directory of another, please change to a non-Rails directory first.\n" + puts "Type 'rails' for help." + exit(1) + end + + def shift_argv! + ARGV.shift if ARGV.first && ARGV.first[0] != '-' + end + + def require_command!(command) + require "rails/commands/#{command}" + end + + def generate_or_destroy(command) + require 'rails/generators' + require_application_and_environment! + Rails.application.load_generators + require "rails/commands/#{command}" + end + + # Change to the application's path if there is no config.ru file in current directory. + # This allows us to run `rails server` from other directories, but still get + # the main config.ru and properly set the tmp directory. + def set_application_directory! + Dir.chdir(File.expand_path('../../', APP_PATH)) unless File.exists?(File.expand_path("config.ru")) + end + + def require_application_and_environment! + require APP_PATH + Rails.application.require_environment! + end + + def write_help_message + puts HELP_MESSAGE + end + + def write_error_message(command) + puts "Error: Command '#{command}' not recognized" + if %x{rake #{command} --dry-run 2>&1 } && $?.success? + puts "Did you mean: `$ rake #{command}` ?\n\n" + end + write_help_message + exit(1) + end + + def parse_command(command) + case command + when '--version', '-v' + 'version' + when '--help', '-h' + 'help' + else + command + end + end + end +end diff --git a/railties/lib/rails/commands/plugin.rb b/railties/lib/rails/commands/plugin.rb new file mode 100644 index 0000000000..837fe0ec10 --- /dev/null +++ b/railties/lib/rails/commands/plugin.rb @@ -0,0 +1,9 @@ +if ARGV.first != "new" + ARGV[0] = "--help" +else + ARGV.shift +end + +require 'rails/generators' +require 'rails/generators/rails/plugin/plugin_generator' +Rails::Generators::PluginGenerator.start diff --git a/railties/lib/rails/commands/plugin_new.rb b/railties/lib/rails/commands/plugin_new.rb deleted file mode 100644 index 4d7bf3c9f3..0000000000 --- a/railties/lib/rails/commands/plugin_new.rb +++ /dev/null @@ -1,9 +0,0 @@ -if ARGV.first != "new" - ARGV[0] = "--help" -else - ARGV.shift -end - -require 'rails/generators' -require 'rails/generators/rails/plugin_new/plugin_new_generator' -Rails::Generators::PluginNewGenerator.start
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