Class: LittleGhost::Generators::ApplicationGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/little_ghost/generators/application_generator.rb

Overview

Creates one conventional standalone LittleGhost application.

Defined Under Namespace

Classes: DestinationExistsError, Error, GenerationError, InvalidNameError

Constant Summary collapse

NAME_PATTERN =

:nodoc:

/\A[A-Za-z](?:[A-Za-z0-9]|[-_](?=[A-Za-z0-9]))*\z/
TEMPLATE_ROOT =

:nodoc:

File.expand_path("templates/application", __dir__)
EMPTY_DIRECTORIES =

:nodoc:

%w[app/assemblies app/tools app/skills].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name:, current_directory: Dir.pwd, template_root: TEMPLATE_ROOT, dependency_path: nil) ⇒ ApplicationGenerator

Returns a new instance of ApplicationGenerator.



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# File 'lib/little_ghost/generators/application_generator.rb', line 21

def initialize(name:, current_directory: Dir.pwd, template_root: TEMPLATE_ROOT, dependency_path: nil)
  @name = name.to_s
  @current_directory = File.expand_path(current_directory)
  @template_root = File.expand_path(template_root)
  @dependency_path = dependency_path && File.expand_path(dependency_path)
  @directory_name = normalize_name
  @class_name = directory_name.split("_").map(&:capitalize).join
end

Instance Attribute Details

#directory_name ⇒ Object (readonly)

Returns the value of attribute directory_name.



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# File 'lib/little_ghost/generators/application_generator.rb', line 19

def directory_name
  @directory_name
end

Instance Method Details

#generate ⇒ Object

Raises:



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# File 'lib/little_ghost/generators/application_generator.rb', line 30

def generate
  destination = File.join(current_directory, directory_name)
  raise DestinationExistsError, "#{destination} already exists" if File.symlink?(destination) || File.exist?(destination)

  identity = nil
  begin
    Dir.mkdir(destination, 0o700)
  rescue Errno::EEXIST
    raise DestinationExistsError, "#{destination} already exists"
  rescue SystemCallError => error
    raise GenerationError, "Could not create #{directory_name}: #{error.message}"
  end

  begin
    identity = directory_identity(destination)
    files = rendered_files
    create_directories(destination, identity, files)
    create_files(destination, identity, files)
    directory_mode = File.stat(File.join(destination, "app")).mode & 0o777
    verify_destination!(destination, identity)
    yield(destination) if block_given?
    restore_directory_mode(destination, identity, directory_mode)
    destination
  rescue Error
    remove_created_destination(destination, identity) if identity
    raise
  rescue => error
    remove_created_destination(destination, identity) if identity
    raise GenerationError, "Could not create #{directory_name}: #{error.message}"
  end
end